(.39- S0G/3'D5G Standard Specifications for Slow Speed Diesel Merchant Ship I Construction /^ ^ sim UNITED STATES DEPARTMENT OF COMMERCE Maritime Administration Office of Ship Construction June 1980 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION PREFACE These Standard Specifications are intended to provide guidance to the Maritime Industry for the preparation of detail medium speed diesel ship specifications. They are complete in all aspects of required contract work, and embody the following pertinent features: o Establish minimum and maximum levels of quality as a bench 5 mark for Construction Differential Subsidy. o Readily identify current requirements of various regulatory bodies. o Include standard test to reflect the legal aspects of contract work such as: MarAd policies for subsidy, contract changes, 10 extent of compliance with regulatory body requirements, and clauses regarding errors, omissions, and conflicts. o Reflect latest technological developments that include pertinent Research Development investigations and Value Engineering recommendations by MarAd and other agencies. 15 o Indicate measures of standardization that may be included in the specifications of diverse ship designs to encourage mass production techniques for processes and systems. o Introduce the use of the SI (Systeme International d'Unites) metric system to the United States shipbuilding industry. 20 These guidance specifications are not intended to restrict design features, construction, materials, equipment, systems, etc., to those that are specifically delineated herein. Substitutions consistent with regulatory body requirements and basic standards of quality will be considered for eligibility for Construction Differential Subsidy. 25 The Maritime Administration Standard Specifications for Merchant Ship Construction dated January 1979 were developed primarily for steam pro- pulsion plants. It was unnecessary to duplicate many of the hull sections in the Maritime Administration Standard Specifications for Merchant Ship Construction dated January 1979 for inclusion in the Slow Speed Diesel 30 Specifications. Therefore, the Hull Sections appearing in the Table of Contents marked with an asterisk (*) have not been duplicated within this specification. For a complete ship specification, it will be necessary to refer to the Maritime Administration Standard Specifications for Merchant Ship Construction dated January 1979. 35 Attention is invited to the existence of the Maritime Administration Standard Specifications for Diesel Merchant Ship Construction, dated 1976, which deals with medium speed diesel propulsion systems. o o o 03 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION TABLE OF CONTENTS SECTIONS TITLE (i-iii) PREFACE AND TABLE OF CONTENTS (I-XXV) INDEX 1* GENERAL 2* STRUCTURAL HULL 3* HOUSES AND INTERIOR BULKHEADS 4* SI DEPORTS, DOORS, HATCHES, MANHOLES 5* HULL FITTINGS 6* DECK COVERINGS 7* INSULATION, LININGS AND BATTENS 8* KINGSPOSTS, BOOMS, MASTS, DAVITS 9* RIGGING AND LINES 10* GROUND TACKLE 11 PIPING-HULL SYSTEMS 12 AIR CONDITIONING, HEATING AND VENTILATION 13* FIRE DETECTION AND EXTINGUISHING 14* PAINTING AND CEMENTING 15* NAVIGATING EQUIPMENT 16* LIFE SAVING EQUIPMENT 17* COMMISSARY SPACES 18* UTILITY SPACES AND WORKSHOPS 19* FURNITURE AND FURNISHINGS 20* PLUMBING FIXTURES AND ACCESSORIES 21* HARDWARE 22* PROTECTIVE COVERS 23* MISCELLANEOUS EQUIPMENT AND STOWAGE 24* NAME PLATES, NOTICES AND MARKINGS 25* JOINER WORK AND INTERIOR DECORATION 26* STABILIZATION SYSTEMS 27* CONTAINER STOWAGE AND HANDLING 50 MAIN AND AUXILIARY MACHINERY 51 MAIN DIESEL ENGINE 53 MAIN SHAFTING, BEARINGS AND PROPELLER 55 DISTILLING PLANT 56 FUEL OIL SYSTEM 57 LUBRICATING OIL SYSTEM 58 SEA WATER SYSTEM 59 FRESH WATER SYSTEM 60 FEED AND CONDENSATE SYSTEMS 61 STEAM GENERATING PLANT 62 AIR INTAKE, EXHAUST UPTAKE AND FORCED DRAFT SYSTEMS 63 STEAM SYSTEMS 64 MACHINERY SPACE VENTILATION 65 AIR CONDITIONING REFRIGERATION EQUIPMENT *See PREFACE for discussion in MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTIONS TITLE 66 SHIP'S SERVICE REFRIGERATION 67 CARGO REFRIGERATION-DIRECT EXPANSION SYSTEM 68 LIQUID CARGO SYSTEM 69 CARGO HOLD DEHUMIDIFICATION SYSTEM 70 POLLUTION ABATEMENT SYSTEMS AND EQUIPMENT 71 TANK LEVEL INDICATORS 72 COMPRESSED AIR SYSTEMS 73 PUMPS 74 GENERAL REQUIREMENTS FOR MACHINERY PRESSURE PIPING SYSTEMS 75 INSULATION-LAGGING FOR PIPING AND MACHINERY 76 DIESEL ENGINES DRIVING GENERATORS 78 TANKS-MISCELLANEOUS 79 LADDERS, GRATINGS, FLOOR PLATES, PLATFORMS AND WALKWAYS IN MACHINERY SPACES 80 ENGINEERS' AND ELECTRICIAN'S WORKSHOPS, STORES AND REPAIR EQUIPMENT 81 HULL MACHINERY 85 INSTRUMENTS AND MISCELLANEOUS GAGE BOARDS-MECHANICAL 86 SPARES-ENGINEERING 87 ELECTRICAL SYSTEMS, GENERAL 88 GENERATORS 89 SWITCHBOARDS 90 ELECTRICAL DISTRIBUTION 91 AUXILIARY MOTORS AND CONTROLS 92 LIGHTING 93 RADIO EQUIPMENT 94 NAVIGATION EQUIPMENT 95 INTERIOR COMMUNICATIONS 96 STORAGE BATTERIES 98 TEST EQUIPMENT, ELECTRICAL 99 CENTRALIZED ENGINE ROOM AND BRIDGE CONTROL 100 PLANNING AND SCHEDULING, PLANS, INSTRUCTION BOOKS, ETC, 101 TESTS AND TRIALS 102 DECK, ENGINE AND STEWARDS' EQUIPMENT AND TOOLS, PORTABLE IV MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION INDEX Access and Maintenance Requirements Access Hatches Access Holes, Ventilation Access Panels, Joiner Ceiling Accommodation Ladder Winches Accommodation Ladders Acoustical and Sound Insulation Adhesives, Coatings, and Sealing Compounds for Insulation and Lagging Air Compressor, Control Air Compressor, Diesel Starting Air Compressor, Ship Service Air Conditioning, Heating, and Ventilation Air Conditioning, Refrigeration Machinery Air Conditioning Label Plates Air Conditioning Refrigeration Equipment, General Air Conditioning Systems, Design Criteria Air Conditioning Water Circulation System Air Conditioning Water and Drain System Air Cooler Units, Defrosting Air Exhaust, Machinery Space Air Filters Air Intake, Exhaust Uptake and Forced Draft Systems Air Mixing Boxes Air Piping, Control Air Piping, Ship Service Air Receivers Air Start Piping Airport and Window Curtains Airports, Fixed Lights and Windows Air Receivers, Compressed Air Systems Air Supply, Machinery Space Air Systems, Compressed, General Air Systems, Main Propulsion Engine Alarm and Call Systems, E. R. Control Console Alarm Systems Alignment, Main Shafting Allowance Lit and Builder's Receipt Anchor Handling Model Anchor, Spare, Stowage of Anchor Windlass Anchors Antennas, Radar Antennas, Radio Anti-Roll Tanks, Passive Sec. Art, 1 13 4 5 12 10 25 1 81 7 5 3 7 7 12 13 75 2 72 3 72 2 72 2 12 1 65 2 24 14 62 1 12 2 65 2 12 5 67 5 64 4 12 7 62 1 12 6 72 7 72 6 72 4 72 5 19 7 5 1 72 4 64 3 72 1 51 22 99 2 95 3 53 2 100 7 1 10 10 9 81 3 10 3 94 4 93 4 26 2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION INDEX Sec. Art. Apparatus Panel Board, Dehumidifi cation (Central System) 69 Automation (Centralized Engine Room and Bridge Control ) Auxiliary Motors and Controls Auxiliary Steam Systems Auxiliary and Main Machinery, General Requirements B Baggage Rooms Ballast System, Clean Barometers Bases, Commissary Spaces Battens and Sparring Battens, Stores Batteries, Interior Communication Batteries, Radio Batteries, Storage Battery Room Bearing, Main Thrust Bearings, Stern Tube, Oil Lubricated Bearings, Steady, Main Shafting Bedplate and Bearings, Main Propulsion Engine Beds, Passenger Stateroom Bedsprings, Berth Bell, Fog Bell Logger Bilge Keels Bilge System Bilge and Ballast Systems (Pollution Abatement) Bilge Wells Level Alarm System Bins, Racks and Shelves Bins, Tilting Bleeder Plugs, Hull Blocks Blower, Forced Draft Boat Winches Boats Boatswain's Chairs and Painter's Stages Boatswain's Storeroom 99 - 91 1 63 2 50 1 23 2 58 5 15 1 17 4 7 9 23 1 96 2 96 3 96 1 23 2 53 9 53 5 53 4 51 3 19 13 19 14 15 1 94 11 99 5 2 9 58 6 70 4 95 3 23 1 17 13 11 4 9 3 16 4 62 5 81 4 16 2 23 3 23 2 II MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Boiler Blowdown Boiler Compound Feed System Boiler Control System Boiler, Exhaust Gas Boiler, Feed Pumps Boiler, Oil Fired Auxiliary (Package) Boiler Water Testing Outfit Boiler, Waste Heat, Circulating Systems and Pumps Booklet of General Plans Books, Instruction Booms and Fittings Booms, Light Rigging and Blocks Bossings and Struts Bow Thruster Breakwater Breathing apparatus, Rescue Bridge Control and Cent. Eng. Room Control Bridge Control Console Bulkhead Stuffing Box and Gland Bulkheads, Interior Bulkheads, Joiner Bulkheads, Structural Bulletin Boards Bulwarks and Windshields Cabinets, Overhead, Commissary Camshaft, Main Propulsion System Capstan Cargo Container Stowage Cargo Handling Gear, Model Cargo Handling, Liquid Cargo Hatch Coamings Cargo Hatch Covers Cargo Hold Dehumidification, Instrumentation Cargo Hold Dehumidification System Cargo Hold Dehumidification Units Cargo Hold Ventilation Cargo, Liquid, Handling Cargo, Liquid, System Cargo Oil Tank Heating Coils Cargo Oil Tanks on Tank Vessels (Pollution Abatement) Cargo Piping Systems on Tank Vessels (Pollution Abatement) Cargo Refrigeration, Automatic Controls III Sec. Art, 61 7 60 5 99 6 61 2 61 4 61 3 61 8 61 5 100 3 100 5 8 3 9 3 2 22 81 13 2 20 13 3 99 1 99 4 95 2 53 8 3 2 25 2 2 15 19 19 3 3 17 12 51 13 81 5 27 2 1 10 68 2 2 21 4 4 69 3 69 1 69 2 12 3 68 2 68 1 63 6 70 2 70 3 67 6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Cargo Refrigeration, Defrosting Cargo Refrigeration, Direct Expansion System Cargo Refrigeration Loads Cargo Refrigeration Machinery Cargo Refrigeration, Manual Controls Cargo and Ship's Refrigeration Control Board Cargo Spaces, Refrigerated, Ventilation Cargo Tank Cleaning System Cargo Winches Carpet Cathodic Hull Protection System Ceilings Cementing Center of Gravity and Weight Central Control, Condensate System Central Control, Feed System Central Control, Fuel Oil System Central Control, Steam and Exhaust Systems Centralized Control Features, Machinery Plant, General Centralized Engine Room and Bridge Control, General Centralized Machinery Control Systems Centrifugal Pumps Certificates, Standards and Rules Chain Locker Chain Locker Drains Chain Pipes Chain Stoppers Chains, Anchor Chair, Boatswains Characteristics, Principal Chests, Sea Classification, Rules, Regulations, Etc. Cleats and Stoppers Clinometers Clocks Closers, Door Closets, Water CO2 Fire Extinguishing Systems CO2 Bottle Storeroom Coamings, Hatch, Cargo Coamings, Heights of Coils, Direct Expansion Cooling Collision Avoidance Radar IV 67 5 67 1 67 2 67 3 67 7 95 5 12 4 68 4 81 10 6 7 25 2 1 16 90 12 25 2 14 7 1 7 60 4 60 4 56 3 63 3 50 4 99 1 99 5 73 2 1 5 24 15 3 4 11 5 10 2 10 5 10 4 23 3 1 3 11 8 1 5 5 7 15 1 93 2 95 4 21 7 20 8 13 2 23 2 2 21 4 3 12 6 70 8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art. Collision Avoidance System Color Schemes, Decorator Air Start Piping Commissary Equipment List Commissary Spaces, General Commissary Spaces, Materials and Workmanship Compas, Gyro, Course Recorder and Repeaters Compass, Magnetic Complement Compressed Air Systems Condensate System Connecting Rods, Main Propulsion Engine Conning System, Integrated Console, Bridge Control Console, Engine Room Control Constant Tension Mooring Winches Container Stowage, Cargo Container (and/or Lighter) Stowage and Handling Containers, Ships' Stores Contract Plans Control Air Compressor Control Air Piping Controllers Controls, Automatic, Refrigeration Convectors Cooling System, Main Propulsion Engine Cooling System, Sea Water Cooling System, Fresh Water Corrosion Precautions, Pressure Piping System Couplings, Main Shafting Coverings, Deck Covers, Hatch, Cargo Covers, Hatch, Powered Covers, Protective Cranes Crankshaft, Main Propulsion Engine Cribbing, Portable Crosshead, Main Propulsion Engine Curtain Hardware Curtains, Airport and Window Cylinder Liners and Covers, Main Propulsion Engine Cylinders, Main Propulsion Engine 94 4 25 3 72 5 17 14 17 1 17 2 94 6 15 1 1 3 72 1 60 1 51 10 94 15 99 4 89 2 99 2 81 14 27 2 27 1 27 3 1 6 72 3 72 7 91 3 66 5 67 6 12 6 51 21 58 2 59 4 74 5 53 3 6 1 4 4 81 8 22 - 8 7 51 9 7 9 51 1 25 2 19 7 25 2 51 8 51 5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec, Art. Damage to Underwater Hull Dampers Data Logger Davits Deadweight and Displacement Deck Structure Deck Coverings Deck Drains, Interior Deck, Eng. & Stewards' Equipment & Tools, Portable Deck Girders Deck Houses Deck Insulation Deck Lockers Deck Machinery Deck Maintenance Workshop Decorator Schemes Deep Tanks Definitions Defrosting, Air Cooler Units Dehumidification Apparatus Panel Board (Central System) Dehumidifi cation System, Cargo Hold Dehumidification Units, Cargo Hold Delivery Diesel Oil Service Tank Diesel Oil System Diesel Starting Compressors Digital Clock Digital Instruments Dispenser, Drinking Water Displacement and Deadweight Distilling Plant, General Distilling Plant Pumps Documentation Door, Hatch and Mahhole Markings Doors Doors, Joiner Doors, Refrigerated Space Doppler Docking System Double Bottom Draft Numerals and Load Markings Drain Collecting System, Steam 1 17 12 11 99 5 8 6 16 3 1 3 2 17 6 1 11 2 102 1 2 13 3 1 7 4 23 2 81 1 18 4 25 3 2 16 1 1 67 5 1 69 4 69 1 69 2 1 18 56 2 56 13 72 2 95 4 99 5 85 11 20 11 1 3 55 1 73 11 1 5 24 11 4 3 4 3 25 2 4 1 7 4 94 14 2 10 24 6 60 2 VI MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec . Art , Drain System, Air Conditioning Water Drain Wells Drains, Chain Locker Drains, Weather Deck Drains and Scuppers Drill Press Duplicate Ships Drydocking and Launching Ducts, Accesses, Hoods, and Trunks Dumbwaiter Car and Unit Dumbwaiter I. C. System Electric Clock System Echo Depth Sounder Electric Cables, Calculations Electric Cables, General Electric Cables, Installation Electric Cathodic Protection System Electric Devices, Protective Electric Fans Electric Heaters Electric Panel boards Electric Shore Connection Electric Transformers Electrical Distribution, General Electrical Equipment and Material Electrical Equipment Identification Electrical Receptacles Electrical Systems, General Electrical Systems, Spare Parts Electrical System Voltages Electrical Test Equipment Electrical Test Receptacles Electrical Workshop and Stores Electrician's Shop Electronic Foe Bell and Gong Signals Electronic Navigation Systems Emergency Generator Emergency Generator and Distribution Switchboard VII 12 5 2 10 11 5 11 2 11 2 80 2 1 19 1 17 12 10 4 3 23 4 81 6 95 4 95 4 94 2 90 5 90 4 90 6 90 12 90 8 19 16 92 8 12 6 90 11 90 7 90 10 90 9 90 1 87 2 87 3 90 3 87 1 87 5 90 2 98 1 98 2 23 2 80 3 94 11 94 3 88 2 89 4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Emergency Generator, Diesel Oil system Emergency Generator Engine Emergency Lighting Emergency Stop Stations Enclosures, Shower Stall Engine Department, Tools and Equipment, Portable Engine Order Telegraph System Engine Room and Bridge Control, Centralized Engine Room Console, Control Engine Room Ventilation Engine Room Control Console Engineering, Value Engineers' Operating Manual Engineers' Platform Hoist Engineers' Storerooms and/or Storage Areas Engineers' Stores Engineers' Workshop Ensign and Jack Staffs Entertainment System Equalizer Pipes Equipment, Life Saving Equipment and Material, Electrical Errors or Omissions Exhaust Gas Boiler Exhaust Gas System, Main Propulsion Engine Expediting Extinguishers, Fire, Portable Extinguishing System, Fire Facsimile Recorder, Radio Fairwater Cap Falls, Life Boat Fans, Electric Fans, Machinery Space Fans and Motors Faucets, Miscellaneous Feed and Condensate Systems Feed System Feed System, Boiler Compound Feed System, Central Control Sec. Art. 56 13 76 2 92 2 91 4 20 4 102 5 99 6 99 1 89 2 99 2 64 1 99 2 1 20 100 6 23 5 81 12 80 4 23 2 80 2 8 5 95 4 11 9 16 1 87 2 1 2 61 2 51 17 100 3 13 2 13 2 93 3 53 11 16 5 19 16 92 8 64 2 12 9 20 3 60 1 60 3 60 5 60 4 VIII MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec Art. Fenders, Lighter Mooring and Docking Films of Plans Filters, Air Final Plans (Tracings and Microfilm) Fin-Pipe Elements Fire Detection and Extinguishing System Fire Extinguishers, Portable Fire Insulation Fire Main System Fittings, Boom Fittings, Cargo Container Fittings, Hull Fittings, Mooring Fixed Lights Fixtures and Fittings, Plumbing Floodlight Floor Plates, Machinery Spaces Flywheel and Jacking Gear, Main Propulsion Engine Foam Extinguishing Systems Fog Bell Forced Report Forced Draft Blowers Foundations, General Frames, Web Fresh Water Cooling Pumps, Engine Fresh Water Storage Tanks Fresh Water System Fresh Water System, Cold Fresh Water System, Hot Fuel Oil Booster Pumps Fuel Oil, Central Control Fuel Oil Filling Fuel Oil Filling Control Station Fuel Oil Heaters Fuel Oil Meter Fuel Oil Preparation System Fuel Oil Service System Fuel Oil Setting Tanks Fuel Oil Sludge Tanks Fuel Oil Strainers Fuel Oil System Fuel Oil Tank Heating Coils Fuel Oil Transfer Fuel Oil Transfer Pump Fuel Oil Viscosity Control Equipment Fuel System, Main Propulsion Engine 5 9,10 100 9 12 7 100 9 12 6 13 - 13 2 7 6 58 4 8 3 27 1,2 5 - 5 5 5 1 20 2 92 6 79 4 51 14 13 2 15 1 100 4 62 5 2 18 2 11 73 8 59 2 51 1 59 3 59 5 73 4 56 3 56 4 56 3 56 8 56 10 56 6 56 7 56 2 56 2 56 9 56 1 70 5 63 5 56 5 73 5 56 11 51 19 IX MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Furniture and Fabric Markings Furniture and Furnishings Furniture and Guidance Plans Furniture, Location and Type Sec Art, 24 9 19 1 19 2 19 19 Gage Boards, Miscellaneous 85 Gages, Boiler Draft 85 Gages, Pressure and Vacuum 85 Gages and Thermometers 66 67 Gages and Thermometers, Spare 85 Galley Equipment 17 Gangway Notices 24 Garbage Chute 11 Garbage Room 18 Gear, Operating, Valve 11 Gear, Steering 81 General Alarm 95 Generator, Emergency 88 Generator, Emergency, and Distribution Switchboard 89 Generator Engine, Emergency 76 Generator Engine, Ship Service 76 Generator, Standby Diesel 88 Generators, Ship Service 88 Girders, Deck 2 Gratings, Machinery Spaces 79 Gratings, Wood and Aluminum 6 Grease Fittings 1 Grilles, Ventilation 12 Grilles, Exhaust 25 Grinder, Electrician's Shop 80 Grinder, Wet and Dry 80 Ground Tackle 10 Guards, Rat 10 Gyro Compass, Course Recorder and Repeaters 94 9 3 2 7 9 8 14 17 6 3 7 2 3 2 4 2 1 1 1 13 3 2 15 11 2 3 2 7 6 Hacksaw, Power Handrails and Stanchions 80 5 79 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec Art. Hardware, General Hardware, Curtain Hardware, Door, Miscellaneous Hardware, Miscellaneous Hatch Coamings Hatch Covers, Cargo Hatch Cover Markings Hatch Covers, Power Stations Hatches, Access Hawse Pipes Hawsers Headroom Headroom, Tops of Doors Heater, Instantaneous Heater, Water, Storage Type Heaters, Blast Heaters, Electric Heaters, Lubricating Oil Heaters, Sink Heaters, Unit Heating and Ventilation Systems Heating Coils, Cargo Oil Tank Heating Coils, Fuel Oil Tank Heating, General Heating Label Plates Heating Systems, Steam Hinges Hoist Car, Engineers Platform Hoist, Engineers Platform Hoods, Vent Hose, Air Hose, Deck Wash Hospital Call System Hospital and Medical Equipment, Portable Hospital Spaces Houses and Interior Bulkheads, General Hull Fittings Hull Machinery Hull Protection 21 1 25 2 21 8 21 9 2 21 4 4 24 12 81 8 4 5 10 1 10 6 1 12 4 3 59 5 59 5 12 6 12 6 90 11 57 5 59 5 12 6 12 2 63 6 63 5 12 1 24 14 12 5 21 6 23 5 81 12 12 10 72 8 13 2 95 4 102 16 19 19 3 1 5 - 81 1 1 16 90 12 I Ice Cube Maker Identification, Pressure Piping Systems XI 17 14 66 8 74 8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec . Art , Jack and Ensign Staffs Jacking Gear, Main Propulsion Engine Joiner and Bulkheads, Lining and Ceilings Joiner Doors Joiner Work, Construction and Finish Joiner Work and Interior Decoration, General Keels, Bilge Key Lockers Keys Kingposts, Booms, Masts and Davits Indicator Panels, Tank Level 71 6 Indicators, Tank Level 71 1 Information List, Refrigeration Control Board 95 5 Inspection 1 14 Instruction Books 100 5 Instruments and Miscellaneous Gage Boards, Mechanical 85 1 Insulation Materials and Installation 7 1 Insulation, Acoustical and Sound 7 7 12 13 Insulation, Fire 7 6 Insulation-Lagging for Piping and Machinery 75 1 Insulation, Refrigeration Spaces 7 4 Insulation, Temperature 7 5 Insulation Thicknesses for Piping and Machinery 75 3 Insulation, Vent, and Air Cond. Ducts and Piping 7 3 Insulation and Lagging Ventilation 12 12 Insulation and Sheathing, Tanks 7 2 Interior Communication Batteries 96 2 Interior Communications, General 95 1 Interior Decoration and Joiner Work, General 25 1 8 5 51 14 25 2 4 3 25 2 25 2 25 1 2 9 21 5 21 4 8 1 Label Plates, Ventilation, Heating, and Air Conditioning 24 14 XII MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art. Labels, Service and Other Space Labels, Stateroom Ladders, Accommodation, Winches Ladders, Cargo Hold Ladders, Machinery Spaces Ladders, Pilot's Ladders, Storeroom Ladders and Stairways Lagging Materials for Piping and Machinery Lagging, Ventilation Lamps Lateral Thruster Latex Mastic Lathe Launching and Drydocking Laundries Laundry Tubs Lavatories Laws, Classification, Rules, Regulations, Etc, Life Boat Falls Life Boats Life Rafts, Inflatable Life Saving Equipment Lifting Gear for Machinery Equipment Lighter Stowage and Securing, LASH Lighting, Emergency Lighting, Exterior Lighting, General Lighting, Illumination Levels Lighting, Navigation and Signal Lights Lighting in Accommodations Lighting in Work Spaces Lights, Cargo, Portable Lights, Fixed Lines and Rigging Lines, Heaving Liquid Cargo Handling Liquid Cargo System List of Machinery List of Motor Driven Auxiliaries Linen Lockers Linen Storerooms Load Line Markings and Draft Numerals Loading Manual Locker, Bonded Stores Locker, Chain Locker, Chain, Drains XIII 24 10 24 8 81 7 5 3 79 2 5 3 23 1 5 3 75 2 12 12 19 6 81 13 6 5 80 2 1 17 18 2 20 10 20 7 1 5 16 5 16 2 16 7 16 1 80 5 27 4 92 2 92 6 92 1 92 3 92 7 92 5 92 4 102 4 5 1 9 1 10 8 68 2 68 1 50 5 91 5 23 2 23 2 24 6 1 8 18 3 3 4 11 5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec Art, Miscellaneous Oilskin Service Lockers, Deck Locker, Safe Lockers, Linen Lockers, Lockers, Lockers, Locks Log Desks Loran Loudspeaker Systems Lube Oil Service Pump Lubricating Oil Coolers Lubricating Oil Lubricating Oil Lubricating Oil Lubricating Oil Lubricating Oil Piping Purifier and Heaters Strainers System, General Tanks Lubricating System, Main Propulsion Engine 23 2 19 8 23 2 23 2 23 2 23 2 21 2 85 10 94 3 95 2 73 6 57 4 57 7 57 5 57 6 57 1 57 3 51 20 57 2 M Machinery, Hull Machinery List Machinery Plant, Centralized Control Features Machinery Plant, General Description Machinery, Refrigerating, Air Conditioning Machinery Space Fans Machinery Space Ventilation Machinery and Auxiliary Machinery, General Requirements Main Propulsion Engine, Air Systems Main Propulsion Engine, Bedplate and Bearings Main Propulsion Engine, Camshaft Main Propulsion Engine, Columns and/or Girders Main Propulsion Engine, Cooling System Main Propulsion Engine, Connecting Rods Main Propulsion Engine, Crankshaft Main Propulsion Engine, Crosshead Main Propulsion Engine, Cylinder Liners and Covers Main Propulsion Engine, Cylinders Main Propulsion Engine, Exhaust Gas System Main Propulsion Engine, Flywheel and Jacking Gear Main Propulsion Engine, Fuel System Main Propulsion Engine, General 81 1 50 5 50 4 50 4 65 2 64 2 64 1 50 1 51 22 51 3 51 13 51 4 51 21 51 10 51 9 51 11 51 8 51 5 51 17 51 14 51 19 51 1 XIV MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec, Art, Main Propulsion Engine, Lubricating Sysem Main Propulsion Engine, Miscellaneous Requirements Main Propulsion Engine, Piston Assembly Main Propulsion Engine, Piston Cooling Pipes, Stuffing Boxes (if required) Main Propulsion Engine, Piston Rod Stuffing Boxes Main Propulsion Engine, Scavenging and Supercharging Main Propulsion Engine, Spare Parts Main Propulsion Engine, Special Tools Main Propulsion Engine, Starting and Reversing Main Propulsion Engine, Turbocharging System Main Propulsion Engine, Uptakes Main Shafting, Bearings and Propeller Maintenance and Access Requirements Manholes Manual, Engineers', Operating Manual Loading Maritime Administration Participation Markers and Signs, Miscellaneous Labels Marking, Stack Markings, Draft Numerals and Load Line Markings, Furniture and Fabrics Markings, Hatch Cover Markings, Machinery Piping and Valves Markings, Rigging Markings, Shell Plate Mastic, Latex Masts Material Control Schedule Material Specifications Materials and Workmanship Materials, Insulating Materials, Insulating and Lagging for Piping and Machinery Matting, Rubber, Ribbed Mattresses Mechanical Instruments Mechanization, Centralized Engine Room and Bridge Console, General Messroom Equipment Meter, Fuel Oil Meter, Water, Distilling Plant Microfilm Mirrors Miscellaneous Equipment and Stowage, General Model Tests 51 12 51 23 51 12 51 7 51 6 51 16 51 25 51 24 51 15 51 2 51 18 53 - 1 13 4 6 100 6 1 8 1 4 24 19 24 2 24 6 24 9 24 12 74 8 24 13 24 18 6 5 8 4 100 2 1 15 1 15 17 2 7 1 75 2 6 10 19 15 85 12 99 1 17 14 56 10 55 1 100 9 19 4 23 1 1 9 XV MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Models and Mockups, Anchor Handling and Cargo Handling Gear Mooring Fittings Motors, Auxiliary Sec 1 5 91 Art, 10 5 2 Name Boards, Ship's Name Plates, Builder's Name Plates, Notices and Markings Name Plates and Markings, Electrical Equipment Navigating Equipment Navigation and Bridge Equipment, Portable Navigation and Signal Lights Navigation Systems, Electronic Noise, Engine Room Control Console Noise, Air Conditioning, Heating and Ventilation Noise and Vibration Noise, Machinery and Ventilation Fans Notice Frames, Licenses, Certificates and Rules Notices, Gangway 24 24 24 87 15 94 102 92 94 50 12 1 50 24 24 4 5 1 3 1 2 7 3 3 13 11 3 15 17 Office Equipment, Portable Oil Fired Boiler Uptake Oil System, Stem Tube Operating Gear, Valve Operating Manual, Engineers' Outfitting Equipment, Portable Overflows 102 15 62 4 53 7 11 7 100 6 102 - 11 3 Padeyes Padlocks Paint and Kerosene Room, Engineers' Paint Room Painter's Stages and Boatswain's Chairs Panting and Cementing, General Painting, Faying Surfaces Painting, Surface Preparation 5 6 21 3 23 2 23 2 23 3 14 1 14 3 14 2 XVI MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Panel boards, Electric Passenger Call System Penetrations, Electric Cable Penetrations, Piping Photographs and Reports Photographs Showing Monthly Progress Pillars and Stanchions Pipes, Chain Pipes, Equalizer Pipes, Hawse Piping and Appurtenances, Cleaning Piping and Appurtenances, Identification Piping and Machinery, Insulation and Lagging Piping, Corrosion Precautions Piping, Hull Systems Piping Installation Piping Insulation, Application Piping Insulation, Thickness Piping, Lubricating Oil System Piping, Pressure Systems, Machinery Piping, Refrigeration Piping Restrictions Piping Schedule, MarAd's Piping, Sewage Piping System Design Piping System, Refrigerant Piping Systems, Cargo, on Tank Vessels Piston Assembly, Main Propulsion Engine Piston Cooling Pipes Stuffing Boxes, Main Propulsion Engine Piston Rod Stuffing Boxes, Main Propulsion Engine Plan Schedule, Working Plans Planning and Scheduling Plans and Charts for Mounting Plans, Contract Plans, Diagrammtic Plans, Films of Plans, Final Plans for Filing Aboard Ship Plans, General, Booklet of Plans, Vendors' and Vendors' Plan List Plans, Working, Definitions of Platforms, for Dressers and Equipment Plugs, Bleeder Plugs, Blow Out Plugs, Insulated Plumbing Drains XVII 90 7 95 4 90 6 74 4 100 4 100 4 2 14 10 2 11 9 10 1 74 7 74 8 75 1,2 74 5 11 1 74 3 75 4 75 3 57 7 74 1 67 8 74 4 74 1 70 6 74 2 66 6 70 3 51 12 51 7 51 6 100 2 100 1 100 JO 1 6 100 3 100 9 100 9 100 11 100 3 100 3 100 2 17 5 11 4 7 4 7 4 11 2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec Art, Plumbing Fixtures and Accessories Plumbing Fixtures and Fittings Pollution Abatement Systems and Equipment Position Fixing System, Electronic Power Plant Performance Power Supplies, Engine Room Control Console Priming Pump Priming System, Pumps Principal Characteristics Progress Reports Propeller, Blade and Balancing Tolerances Propeller, Fair Water Cap Propeller, General Propeller, Model Test Requirements Propeller Signs Propeller Shaft Revolution Indicator System Protection, Hull, Cathodic Propulsion Control Public Address System Pump Controls, Fuel Oil Pump, Priming Pumps, Centrifugal Pumps, Distilling Plant Pumps, Engine Fresh Water Cooling Pumps, Fuel Oil Booster Pumps, Fuel Oil Transfer Pumps, General Pumps, Injection Fuel Valve Cooling Pumps, Lube Oil Service Pumps, Main Sea Water Pumps, Piston Cooling Pumps, Priming System Pumps, Rotary Pumps, Sewage Pumps, Strainers Purchase Orders and Requisitions Purifiers, Lubricating Oil Pyrotechnics Stowage 20 1 20 2 70 1 94 3 50 2 99 2 73 12 58 7 1 3 100 4 53 10 53 11 53 10 1 9 24 7 94 10 14 8 1 16 90 12 99 4 95 2 56 12 73 12 73 2 73 11 73 8 73 4 73 5 73 1 73 10 73 6 73 7 73 9 58 7 73 3 70 6 58 8 100 3 57 5 23 3 Racks, Miscellaneous, Commissary Spaces Radar Collision Avoidance System 17 94 XVIII MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Radio Batteries Radio Direction Finder Radio Equipment Radiographic Inspection Radio Facsimile Recorder Rafts, Life Inflatable Rails and Stanchions Ramps Rat Guards Receptacles Receptacles, Test Recorder, Facsimile, Radio Refrigerant Piping System Refrigerated Cargo Spaces, Ventilation Refrigerated Compartment Equipment Refrigerated Compartments Refrigerated Container Monitoring System Refrigerated Space Door Refrigerated Spaces, Blow Out Plugs Refrigerated Spaces, Insulation Refrigerated Stores Refrigerating Machinery Refrigeration Piping, Cargo Refrigeration, Cargo, Automatic Controls Refrigeration, Cargo, Direct Expansion System Refrigeration, Cargo, Manual Controls Refrigeration Control Board, Cargo and Ships Refrigeration Equipment, Air Conditioning Refrigeration Loads Refrigeration, Ship's Service Refrigerators Regulations, Regulatory Bodies Reports and Photographs Report, Construction Progress and/or Payment Report, Steel Requisitions and Purchase Orders Rescue Breathing Apparatus Rigging and Lines Rigging tor kings Rigging, Miscellaneous Rigging, Running Rotary Pumps Rudder Angle Indicator Rudder and Carrier XIX 96 3 94 5 93 1 2 3 93 3 16 7 5 4 79 5 5 8 10 7 90 3 98 2 93 3 66 6 12 4 66 4 67 4 66 2 95 4 4 3 7 4 7 4 7 4 23 2 65 3 66 3 67 8 67 6 67 1 67 7 95 5 65 1 67 2 66 1 17 10 1 5 100 4 100 4 100 4 100 3 13 3 9 1 24 13 9 4 9 2 73 3 94 9 2 7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Safe Locker Safety and Relief Valve Escape Piping System Safety Treads Salinity Indicator System Sanitary Fixtures, Schedule of Scavenging and Supercharging, Main Propulsion Engine Schedule, Master Erection Schedule, Material Control Schedule of Deck Coverings Schedule of Sanitary Fixtures Schedule, Plan-Working Plans Scheduling and Planning Screens, Wire Mesh Scuppers and Drains Scuttles Sea Chests Sea Water Engine Cooling System Sea Water Pumps, Main Sea Water Systems, General Sea Water, Auxiliary Service System Sealing Compounds Seals, Stern Tube Searchlight, Signalling Sewage Treatment and Liquid Waste Disposal Systems Shaft Alignment Shaft Calibration Shafting, Line Shafting, Main, Bearings and Propeller Sheathing, Insulating Board and Sheet Metal Sheathing and Insulation, Tanks Shelf, Radio Shell Shell Plate Markings Shelves, Commissary Spaces Shelves, Bins, Racks, Etc. Ship Control Systems Ship's Name Ship Service Air Compressor Ship Service Air Piping Ship Service and Emergency Diesel Generator Exhausts Ship Service Generator Engine(s) Ship Service Generators Ship Service Systems, Interior Communications Ship Service Refrigeration Ship's Stores, Containers and Stowage XX 19 8 63 4 6 9 60 7 95 2 20 13 51 16 100 2 100 2 6 11 20 13 100 2 100 2 12 11 11 2 4 7 11 8 58 2 73 7 58 1 58 3 75 2 53 6 92 7 70 6 53 2 101 - 53 1 53 - 7 8 7 2 19 18 2 8 24 18 17 11 23 1 95 2 99 6 24 3 72 2 72 5 62 3 76 1 88 1 95 4 66 1 27 3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Shoes and Glides, Furniture Shore Connection, Electric Shower Accessories Shower Stall Enclosures Showers and Baths Si deports Side Stringers Signs and Markers, Miscellaneous Labels Signs, Propeller, Warning Sink Heaters Sinks Slop Chest Smoke Detection System Smoke Indicators Sound and Acoustical Insulation Sounding Tubes, Vents and Overflows Spare Parts, Boxing, Marking, and Stowage Spare Parts, Engineering Spare Parts, Engineering, Boxing Spare Parts, Stowage Sparring and Battens Special Tools, Hull Specification Requirements, General Specifications, Material Specifications, Purchase (Technical) Speed Log Stability and Subdivision Stabilization Systems Stack Emission Stack Marking Stages. Painters Stair Treads Stairways and Ladders Stanchions and Handrails, Machinery Spaces Stanchions and Pillars Standby Diesel Generator Starting and Reversing, Main Propulsion Engine Steam Auxiliary Systems Steam Drain Collecting System Steam Systems Steam Systems, Central Control Steam Generating Plant Steam Heating Systems and Air Conditioning Water Systems Steam System, General XXI 19 11 90 10 20 6 20 4 20 5 4 2 2 12 24 19 24 7 59 5 17 6 20 9 18 3 13 1 70 7 7 7 12 13 11 3 23 6 86 1 86 3 86 2 7 9 23 3 1 2 1 15 100 3 94 13 1 8 26 1 70 7 24 2 23 3 6 8 5 3 79 5 2 14 88 1 51 15 63 2 60 2 63 1 63 4 61 1 12 5 63 1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Steam Table Steel Report Steering Control System Steering Gear Stem Stern Frame and Rudder Horn Stern Tube and Stern Tube Oil Lubricated Bearings Stern Tube Oil System Stern Tube Seals Stewards Department Items Stoppers, Chain Stoppers and Cleats Storage and Batteries Storerooms, Engineers' Storerooms, Linen Stores, Dry Stores, Refrigerated Stowage, Cargo Container Stowage and Securing, Lighters Stowage, Ground Tackle Stowage, Miscellaneous Stowage Spaces Strainers, Fuel Oil and Diesel Oil Strainers, Lubricating Oil Strainers, Pumps-Sea Water Systems Strainers, Sea Water Systems Structural Bulkheads Structural Hull, General Struts and Bossings Subdivision and Stability Surface Preparation, Coating Materials Surfaces, Faying Switchboard, Emergency Generator and Distribution Switchboard, Ships Service Generator and Distribution Switchboards, General System Design, Pressure Piping, Machinery Systems Components, Engine Room and Bridge Console Sec. Art, 17 7 100 4 94 7 81 2 2 5 2 6 53 5 53 7 53 6 102 6-14 10 5 5 7 96 1 23 2 80 4 23 2 23 2 23 2 27 2 27 4 10 9 23 3 23 2 56 9 57 6 58 8 58 8 2 15 2 1 2 22 1 8 14 2 14 3 89 4 89 3 89 1 74 2 99 3 Table, Food, Dry Head 17 8 Table, Steam 17 7 XXII MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec. Art, Tackle, Ground Tail shaft Tank, Cargo, Cleaning System Tank, Diesel Oil Service Tank, Filling and Details Tank, Heating System Tank, Kerosene Tank Level Indicators Tank, Pressure, Hydro pneumatic Tank Sounding Board Tanks, Cargo Oil on Tank Vessels Tanks, Deep Tanks, Fresh Water Tanks, Fuel Oil Tanks, Holding Tanks, Lubricating Oil Tanks, Miscellaneous, General Tanks, Miscellaneous, List of Tanks, Passive Anti-Roll Tanks, Reserve Feed, and Processed Water Tanks, Sewage Treatment Tanks, Sheathing and Insulation Telephones, Dial Telephones, Sound Powered Telephones, Shoreside Terminals, Ventilation Test Equipment, Electrical Test, Model, Requirements, Propeller Test Receptacles, Electrical Testing and Inspection of Welds Tests and Trials Tests, Duplicate Ships Tests, Model Thermometers Thermometers, Bi-Metallic Dial Type Thermometers, Direct Reading Thermometers, Mercury in Glass Type Thermometers, Remote Reading, Indicating Dial Thermometers and Gages Thermometers and Gages, Spare Thermostatic Controls and Thermometers Thruster, Lateral Tile, Ceramic Tile, Vinyl Asbestos XXIII 10 . 53 1 68 4 56 2 78 3 68 5 23 2 78 2,3 71 1 95 2 59 3 24 16 70 2 2 16 59 2 56 2 70 6 57 2 78 1 78 2 26 2 60 6 70 6 7 2 95 2 95 2 95 2 12 11 98 - 1 9 98 2 2 3 101 - 1 19 1 9 12 8 85 6 85 5 85 7 85 4 66 7 67 9 85 8 12 8 81 13 6 4 6 6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec . Art . Tools and Equipment, Portable, Deck and Engine Departments Tops for Dressers, Counters, Etc. Transformers Transmitter, Radio Treads, Safety Treads, Stair Trails and Tests Trunks, Ducts, Accesses and Hoods Trunks Trunks, Vent Tubes, Sounding Tubs, Laundry Turbocharging System Underlayment Upholstery Uptakes, Main Propulsion Engine Utility Spaces 102 17 3 90 9 93 2 6 9 6 8 101 - 12 10 2 19 12 10 11 3 20 10 51 2 6 3 25 2 51 18 18 3 Value Engineering 1 20 Vang Posts and Kingposts 8 2 Velocities, Maximum Allowab,e Pressure Piping System 74 2 Vendors' Plans and Vendors' Plan Lists 100 3 Vent Ducts, Natural 12 10 Vent Pipes 11 3 Vent Terminals 11 3 Ventilating Windsails 22 Ventilation Label Plates 24 14 Ventilation and Heating Systems 12 2 Ventilation and A/C Ducts and Piping, Insulation 7 3 Ventilation, Cargo HOld 12 3 Ventilation, General 12 1 Ventilation Insulation Requirements 12 12 Ventilation, Machinery Space 64 1 Ventilation Plans, MA Standard 12 11 Ventilators, Exhaust 12 10 Vents and Overflows 11 3 XXIV MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sec . Art , Vibration and Noise Vibration Survey Vinyl Asbestos Tile Voltages, Electrical Wardrobes Waste Baskets Watch Call Systems Water Closets Water Coils and Air Mixing Units Water Dispenser, Drinking Water Heater, Storage Type Web Frames Weight and Center of Gravity Welding Welding Equipment Welds, Testing and Inspection of Whistle Winch, Warping Winches, Accommodation Ladder Winches, Boat Winches, Cargo Winches, Topping, Vang and Schooner Guy Winches, Mooring, Constant Tension Wind Speed and Direction Indicator Windlass, Anchor Window Wipers Windows, Wheel house Windsails, Ventilating Windshields and Bulwarks Working Plans, Definition of Working Plans, Schedule Workmanship Workshop, Deck Maintenance Workshop, Electrical and Stores Workshop, Electrician's Workshop, Engineers' and Storerooms Wrenches (Special Tools) XXV 1 11 101 - 6 6 90 2 19 5 19 17 95 2 20 8 12 6 20 11 59 5 2 11 1 7 2 4 80 6 2 3 74 6 94 8 81 11 81 7 81 4 81 10 81 9 81 14 94 12 81 3 5 2 92 8 5 1 22 - 3 3 100 3 100 2 1 15 2 2 18 4 23 2 18 4 80 3 18 4 80 2 23 3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Section 11 PIPING-HULL SYSTEMS 1 . GENERAL All piping shall be concealed in accommodation spaces having ceilings and sheathing, except normally exposed piping to fixtures, and shall be 5 kept to a minimum. To maintain maximum headroom, all piping shall be kept behind framing and as close as practical to desk beams, bulkheads and the underside of decks. Pipes conveying steam or liquids shall not be led overhead through the emergency generator room, chart room, battery lockers, radio room, 10 refrigerated spaces, central control room operating station, stores, dry cargo holds or in the vicinity of switchboards; nor pipes conveying liquids in food preparation spaces, mess rooms, dispensary, and similar spaces, where avoidable. Where this is not practical, the piping shall have all joints welded or brazed. 15 All piping subject to mechanical injury shall be adequately protected. All guards shall be bolted in place so that they may be removed for repairs to piping. See Section 74 for additional general and material requirements and Section 75 for insulation and lagging requirements. 20 2. SCUPPERS AND DRAINS (a) General All scupper valves shall be arranged to open and shut in a fore and aft direction at the ship's side and shall be located for easy access for the removal of the clapper and hinge pin. 25 All overboard discharge openings through the shell plating for plumbing drains, sewage tank disposal, refrigerated spaces drains, interior and weather deck drains shall be located at or as close to the load water- line as practicable. Scuppers, particularly those carrying sewage and drain tank discharges, shall be located well clear of accommodation 30 ladders, load line markings and boats when these are put overboard by davits or cranes. Drains discharging overboard, which are required to be inde- pendent of each other, may be combined at the shell outboard of the scupper valve. Drains discharging to a sewage tank, which are required 35 to be independent of each other, may be combined at the tank inlet on the tank side of the drain lines' non-return valves. 11-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Provisions shall be made to prevent interflooding between W.T. and O.T. compartments, below the bulkhead deck, via deck and fixture drain piping in event of collision damage to a compartment. Where such drain piping is located inboard of the shell not less than one-fifth of the ship's maximum beam, a swing check valve shall be fitted on the W.T. 5 or O.T. bulkhead at each penetration Where the drain piping is located inboard of the shell not more than one-fifth of the ship's maximum beam, a cut-out valve shall be fitted on the W.T. or O.T. bulkhead penetration, backed-up by a swing check valve. The cutout valve shall be operable from accessible locations locally and from above the bulkhead deck. 10 Sufficient deck drains of adequate size shall be provided and located to prevent water standing on the decks under ordinary conditions of list and trim. Drains, unless otherwise noted herein, shall discharge over- board by gravity at the load water line. 15 Deck drains shall be fitted with removable brass or approved reinforced plastic strainer plates having a free area of at least twice the area of the drain pipe. Strainers shall be adequately secured and shall be flush with the deck. Drain pipies throughout the ship, except from plumbing fixtures, 20 shall not be less than 51 mm (2 in) ips except as noted herein. A coaming enclosure, with deck drain(s), shall be provided around equipment which may have oil or water leakage or spillage under normal operating conditions. All drain pipes shall be led as directly as possible. They 25 shall be provided with a sufficient number of accessible cleanout connec- tions, not less than 38 mm (1 1/2) in) ips for clearing the drain pipes by use of plumber's snake or with steam or water hose. Cleanout plugs shall be bronze or CRES. Deck and fixture drain lines shall be arranged so as to provide positive drainage when the ship is under ordinary conditions of list and trim at sea and in port. 30 In general, where drains are combined with other drains, "Y" or "TY" branches or fittings shall be used to facilitate flow. Branch connections to athwartship drains, which discharge to both sides of the vessel, shall be made at an angle of 90 degrees using double sweep 35 t^e fittings. Drain pipes from plumbing fixtures or deck drains combined with other drains located at higher elevation shall be fitted with non- return valves where necessary to prevent back flooding under normal conditions of list and trim or the rolling and pitching of the ship. 40 11-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Plumbing Drains Drains from lavatories, showers, sinks and drinking fountains shall have traps and accessible cleanout connections. Not more than six adjacent lavatories may be fitted with one trap. Drains from lavatories, sinks, showers and drinking fountains, 5 in spaces below the Main Deck, when not practical to drain overboard, shall drain to sewage disposal tanks specified in Section 70. The minimum size of all lavatory and drinking drains shall be 38 mm (1 1/2 in). Fixture and deck drains in spaces normally used for dispensary 10 or hospital services shall be independent discharge to the sewage disposal tanks. Soil pipes from water closets shall be independent of other drains and shall be collected in groups into mains; the mains being led, with proper pitch, to the sewage disposal tanks. Cleanout plugs shall 15 be fitted as necessary and sharp bends and pockets shall be avoided. Where the length of run and number of changes in direction are not excessive and satisfactory drainage will result, it will be satis- factory to connect water closets as follows: 2 fixtures on 76 mm (3 in) horizontal run 20 12 fixtures on 102 mm (4 in) horizontal run 30 fixtures on 127 mm (5 in) horizontal run 28 fixtures on 102 mm (4 in) vertical riser (c) Interior Deck Drains Space drains below the main deck, when it is not practical to 25 drain overboard by gravity and, unless otherwise noted, shall be provided with drain wells as required or discharge to drain wells below. Drain wells shall be drained by the bilge system or salt water eductors. Deck drains shall be provided in all fan rooms, commissary spaces, refrigerated spaces, garbage room, toilets, showers, toilet and 30 shower rooms, air plenums, laundry spaces, entrance areas from the weather, enclosed spaces under outside ladders, emergency generator room, oilskin locker, sideport gutters, dumbwaiter pits, machinery space platforms, extreme ends of passageways on the second deck and similar spaces where water may collect. Deck drains in all spaces indicated, 35 including fan rooms, shall provide drainage in all areas under design conditions of list and trim. Drains from fan rooms, plenum chambers and other spaces with openings to the weather, which are not located in vicinity of weather or plumbing drain lines, shall spill on the deck via bulkhead check valves. 40 11-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A drain shall be fitted to the lower end of masts and king- posts when used for ventilation. Drains shall be provided from venti- lation ducts where necessary. Central air conditioning units and/or cooling coils in fan rooms shall be provided with drains. These drains shall be directly 5 connected to plumbing drains and be fitted with a self-sealing trap, or shall discharge into an open funnel to a fan room deck drain. Drains shall be lagged to prevent condensation. Window pockets shall be provided with 25 mm (1 in) schedule 40 normal impact rigid polyvinylchloride (PVC) drain pipe and fittings 10 spilling on deck, outboard. The number of house drain penetrations shall be kept to a minimum. Interior deck drains, which connect to drains from plumbing spaces, shall be trapped or have a built-in water seal. (d) Weather Deck Drains 15 The top of house deck drains shall be not less than 38 mm (1 1/2 in) diameter. The scupper drain pipe on each lower deck shall be increased by 12.7 mm (1/2 in) diameter over that of the deck above, with a 76 mm (3 in) ips maximum, except that the port and starboard deck drains just forward of the main deck house shall be 102 mm (4 in) ips. 20 Drains from decks above shall be led to gutterways adjacent to scuppers where possible. The total capacity of the drainage system shall be sufficient to drain all decks, without progressive accumulation of water, at a rainfall rate of 12.7 mm (1/2 in) per hour. 25 Main deck scuppers shall discharge overboard through 45° radius or mitered elbows, hot-dipped galvanized after fabrication, fitted in the deck stringer and shell sheerstrake. Provisions shall be made for draining inside of catch-alls enclosing machinery on weather decks. 30 (e) Miscellaneous Drains Efficient means shall be provided for draining the steering gear flat, bosn's stores, anchor windlass room, hawser room, sewage unit space, machine shop and similar spaces. The steering gear flat drains shall be combined into a single 35 drain which shall be led overboard or to a drainwell in the shaft alley. Leakage from the rudder stuffing box shall be confined by a coaming and have a drain. 11-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Flush removable strainer plates shall be fitted over drain wells, and plates for blanking off drainwells when carrying liquid or bulk cargo shall be provided as required. The blanking plates shall be marked to identify the drainwell served and provisions made for rattle proof stowage of the plates, when not used, on the bulkhead adjacent to 5 the drainwells on which fitted. Compartments which are not practical to drain by suction or gravity shall be drained by a hand operated salt water eductor. (f) Refrigerated Compartments and Food Preparation Space and Equipment Drains 10 Deck drains for refrigerated spaces, butcher shop, pantries and other food preparation spaces shall be provided in number and loca- tion so that complete drainage is possible under normal conditions of list or trim. Deck and equipment drains from these spaces shall discharge overboard or to independent drain tanks and shall be independent of drains 15 from other spaces inboard of the scupper valve or non-return valve at drain tank serving these drains. The garbage grinder drains shall discharge to the sewage disposal tanks as close to the tank inlet as possible. In general, two (2) deck drains shall be provided in each 20 ship's refrigerated stores box and each cargo refrigerated space and one (1) in the butcher shop. Each deck drain in refrigerated spaces shall be 76 mm (3 in) ips and shall be designed so as to permit a tapered aluminum sheathed wood or approved reinforced plastic plug to be inserted in the drain 25 above the strainer plate a distance of about 102 mm (4 in). The pipe shall be attached to the adjacent structure by means of a brass jack chain. Bolts and nuts shall be of brass or bronze. Deck and equipment drains in the butcher shop and other food preparation spaces shall be trapped or have a built-in water seal. 30 All piping to and from refrigerated spaces shall be lagged for a reasonable distance to prevent heat transfer from without. 3. SOUNDING TUBES, VENTS AND OVERFLOWS (a) General Sounding tubes, vents and overflows shall be provided in loca- 35 tions as required by the Regulatory Bodies. All tanks, except fuel oil storage and oily ballast tanks which are subject to pump pressure, shall be fitted with independent overflows. 11-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Where sounding, vents and overflow pipes penetrate integral hull tank tops, flats and decks, they shall be fitted with schedule 80 sleeves at all locations where pipes are subject to damage from cor- rosion due to standing water or from physical abuse. Pipes shall pass hrough sleeves which are continuously welded on both sides of the 5 plating. Sleeves shall extend 152 mm (6 in) above the 25 mm (1 in) below the plating. Pipes shall be continuously welded to the sleeve top and bottom. Flanged take-down connections shall be provided in vent and overflow lines, in accessible locations for the fitting of blanks to 10 isolate tanks for individual tank air-testing or for other reasons. (b) Sounding Sounding tubes shall not be less than 38 mm (1 1/2 in) except for fuel oil tanks which shall be 51 mm (2 in). The tubes shall termi- ate within 51 mm (2 in) of the lowest part of the tank compartment. 15 Curvature or slope in sounding tubes shall be avoided wherever possible. A curvature of 6 meters (20 ft) minimum radius will be per- mitted in sounding tubes where unavoidable. Reverse bends will not be permitted. Sounding tubes terminating on the bulkhead deck or above shall 20 be fitted with flush brass deck plates with brass or approved reinforced plastic plate plugs. The deck plates shall be clearly engraved with name and number of the tank or compartment they serve and maximum sound- ing of the space. Horizontal sections of pipe with tee fittings acting as striking plates shall not be used for sounding tanks. All sounding 25 tubes terminating below the bulkhead deck shall be fitted with self- closing gate valves at the upper end and be in accessible locations. They shall be labeled the same as for those terminating at deck plates, with the label located in a readily readable position on the adjacent bulkhead, where practicable; otherwise, they shall be securely attached 30 to the self-closing valve. Sounding tubes shall not terminate in staterooms, locked or inaccessible spaces. Sounding tubes of all drain wells shall penetrate the drain well outside the area occupied by the strainer plates. Where portability is required to permit removal of machinery, 35 etc., flange joints shall be provided for sounding tubes. (c) Vent Pipes The ips of each vent pipe shall be not less than 64 mm (2 1/2 in) for oil tanks, 51 mm (2 in) for water ballast tanks and 38 mm (1 1/2 in) for fresh water and reserve deep tanks, cofferdams, hot wells 40 and voids. However, in no case shall the area of the vent pipe be less 11-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION than 38 mm (1 1/2 in) I.D. pipe or (l/10th) one-tenth the area of the suction or pressure filling connection, whichever is the greater. Where practicable, vent pipes from tanks of a kind shall be combined above the test head level of the tanks into a common header with a single outlet to the atmosphere above the weather deck in 5 protected locations. Vent pipes common to two or more vents from the same tank shall be the same size as the largest branch. Headers common to two or more vents from tanks having common suction and filling mains shall not be less than 10% of the area of the filling main serving the tanks 10 involved. Vents shall be fitted at the high points of standpipe over- flows to act as vacuum breakers. A satisfactory system shall be provided for venting all drains from lavatories, drinking fountains, sinks and other plumbing fixtures. 15 Water closets, lavatories, drinking fountains and sinks may be vented by means of anti-syphonic valves constructed of non-corrosive material with a replacement neoprene flap-valve which will admit air at the appropriate moment to break the syphonic action of the fixture. (d) Vent Terminals 20 Vent terminals above the weather deck shall terminate in the atmosphere close to the bulwark or side of deck house with approved gooseneck fittings located so as not to interfere with equipment, cargo or boat handling and embarkation operations and shall not be located abreast of hatches. The number of vent terminals above the weather 25 deck shall be kept to a minimum. Vent terminal screens shall be well protected against mechani- cal injury and so arranged to prevent painting of the mesh. The clear area through the mesh shall not be less than 150 percent of the area of the vent pipe for screens having .8 mm (1/32 in) square openings and 30 less. The clear area through other screens shall not be less than the area of the vent pipe. Vents may be taken from the top of tank overflows, but termi- nals shall not be used for the dual purpose of tank venting and overflow. All vents must extend above the top of overflows to a height where 35 overflow cannot discharge through the vent terminals. Automatic valves shall be provided at the terminals of vents that are liable to be washed by the sea, so arranged as to allow the ingress and egress of air and automatically close by action of the sea. Automatic valves will not be required on vent openings that terminate 40 2 meters (6 ft) or more above the weather deck or inside accommodation spaces. 11-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Vent terminals for oil tanks and cofferdams adjacent to oil tanks shall be fitted with double screens, which shall be removable for cleaning. The inner screen shall be 30 x 30 wire mesh. The outer screen shall be fitted 12.7 mm (1/2 in) from the inner screen and shall have 6.4 mm (1/4 in) square openings. 5 Vent pipes for potable and distilled water tanks shall termi- nate above the test head of the tanks in ventilated service spaces, passageways, shops or similar spaces. The terminals shall be fitted with double screens which shall be removable for cleaning. The inner screen shall have .8 mm (1/32 in) square openings. The outer screen 10 shall be fitted 12.7 mm (1/2 in) from the inner and shall have 6.4 mm (1/4 in) square openings. Other water tanks shall vent in ventilated spaces above the test head level of the tanks or above the Main Deck to the atmosphere and shall be fitted with a screen having 6.4 mm (1/4 in) square openings. 15 All metal vent terminal screens shall be of noncorrodible wire. Where water closet vents terminate at the side of deckhouse, a horizontal one-half round pipe shall be welded to the side of the house to prevent wind blowing down the vent. The internal sectional area of the half-round pipe shall be equal to the area of the vent, and the 20 ength shall be four times the diameter of the vent. Vent terminals shall be suitably labeled to indicate the tank(s) or space(s) served. (e) Overflows Overflows from potable, distilled and reserve feed water tanks 25 shall be led up to a height three feet below the test head of the tank and discharge to the bilge via a visible open funnel or sight flow fitting located eye level above the floor. The area of overflow pipes, including standpipes, shall be sufficient to prevent the development of pressures (static and dynamic) 30 in excess of the test head of the tanks, but shall not be less than 125 percent of the area of the tank filling connections. The material and arrangement of the liquid cargo tank overflow and sampling lines shall be in accordance with the requirements in Section 68. 35 4. BLEEDER PLUGS Bleeder plugs of 38 mm (1 1/2 in) ips 70-30 copper-nickel shall be provided for rudder and all tanks adjacent to the shell below the load water! ine for draining when in dry dock. Two additional bleeder plugs shall be furnished as spares. 40 11-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 5. CHAIN LOCKER DRAINS The chain locker shall drain into a sump tank constructed below the chain locker. The sump shall be drained by means of a hand operated salt water eductor or jet pump actuated by fire main pressure. The discharge shall be carried to the load waterline and shall be fitted 5 with a non-return valve and a sea gate valve adjacent to the shell connection. The gate valve shall be operable at the valve and from the bulkhead deck. 6. GARBAGE CHUTE One garbage chute shall be provided from the Garbage Room. The 10 chute shall discharge overboard at the load waterline and shall be fitted with a flap valve at the ship's side. The chute shall be .5 meters (18 in) ips Schedule 40 steel pipe flanged. Bends where required shall have a 1.5 meter (5 ft) minimum radius. Flushing connections, controlled by one valve, shall be fitted at 15 the top and bottom of the chute. The chute shall be provided with a hopper with flushing rings on the inside and so arranged that the flushing water will spray downward. A watertight cover, provided with a rugged ocking device and spring hinge, shall be fitted to the hopper. A clean out shall be provided at bottom of chute. 20 For garbage chute corrosion protection requirements, see Section 14. In lieu of a garbage chute, garbage may be processed by a compactor described in Section 18. 7. OPERATING GEAR (MECHANICAL) Mechanical operating gear shall be provided for all valves in 25 locations inaccessible for local operation, unless otherwise noted. Operating gear which terminate on the open deck or in passageways shall be fitted with composition flush deck boxes fitted with "open" and "closed" indicators. Those terminating in passageways shall be located close to the bulkhead. Deck box wrenches shall be capable of removing 30 the deck box plug as well as operating the gear. Remote operating gear, not terminating in deck boxes, shall be fitted with hand wheels. Valves in the bilge, ballast and fuel oil systems requiring mechanical remote control shall be of the direct operated type. Pro- vision shall be made for a quick disconnect of the gear at the valve to 35 permit local operation in case the gear becomes jammed. Where universal joints are used, the angle between the lines of the shaft shall not exceed 40 degrees. 11-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Where exposed bevel gears are used, they shall be enclosed in a canvas boot. 8. SEA CHESTS The number of sea chests shall be kept to a minimum. Sea valves shall be attached directly at the side of the chest. 5 Suction sea chests shall be fitted with portable monel or approved reinforced plastic strainer plates perforated with 12.7 x 76 x 102 mm (1/2 in x 3 in or 4 in) long slots placed in a fore and aft direction. The collective area of the slots shall not be less than twice the com- ined area of all the sea valves connected to the sea chest. For small 10 sea chests, strainer plates with perforations not less than 12.7 mm (1/2 in) diameter may be used to minimize the possibility of fouling flow passages. Strainers shall be of approved thickness and be secured in place with monel studs and nuts in such a manner as to be removable with no part projecting beyond the shell. 15 All suction sea chests shall be connections for steaming out as required in Section 63. Connections and valves shall not be less than 25 mm (1 in) ips. Suction sea chests shall be arranged and located so as not to take in air trapped under bilge keels or from emergence on a 30 degree roll 20 of the ship at minimum operating draft and to avoid pick up of effluent from overboard discharges. All suction sea chests shall be fitted with vent lines from the top of the chest terminating in the weather about ten feet above the margin line in goosenecks. The vent shall not be less than 51 mm (2 in) in 25 iameter and shall be fitted with an acceptable gate valve at the top of the sea chest. The individual vents may be connected together into one vent terminal . Alternatively, self-vented type sea chests may be fitted. 9. EQUALIZER PIPES 30 Equalizer pipes shall be provided to eliminate unsymmetrical flood- ing as necessary to meet requirements for stability control. The ends of the equalizer pipes shall be fitted with oil tight cover plates and towage provided for the same when tanks are used for dry cargo. Equalizer pipes shall be so located that the bottom of the pipe is 35 a distance above the bottom of the compartment not greater than one- half of the diameter of the pipe. 11-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Minimum size of cross connections shall be determined from the equation: A = V K H Where A = Cross connection area in square meters (square feet) V = Volume of one tank in cubic meters (cubic feet) H = Height from center of pipe to top of tank in meters (feet) K = 1103 (metric); 2000 (English) 11-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 12 AIR CONDITIONING, HEATING AND VENTILATION 1 . GENERAL This Section applies to all spaces, including the machinery space, and it is the intent that all systems shall be complete and adequate for 5 the intended service. Air conditioning equipment rooms and fan rooms shall not be used as plenums unless specifically approved. Air conditioning ducts, equipment, etc., shall be suitably insulated and isolated from all structure, joiner work and supporting hangers to prevent the formation of condensation. 10 Air conditioning equipment, system components, etc., shall be pro- tected from the weather and should be centrally located with respect to the spaces served in order to reduce the runs of ducts, wiring, piping, etc., to a minimum consistent with efficient design. Particular attention should be directed toward designing air 15 conditioning, heating, and ventilating systems to reduce airborne and structure borne sound transmission to the maximum extent possible. Acoustic dampening may be accomplished by proper equipment layout, insulation, sound dampening devices and proper balancing of air flows in the various spaces. 20 2. SYSTEMS (a) General Systems shall be complete including filters, fans, preheaters, cooling dehumidifying coils, reheaters, air mixing boxes, duct work, terminals, closures, louvers, dampers, thermostatic controls, drains, 25 insulation (acoustic and thermal), vapor sealing and lagging, label plates, operating instructions, etc., necessary for satisfactory operation and performance. Systems shall be designed to prevent contamination from dis- similar spaces. Weather supply terminals shall be located so as to avoid 30 intake from weather exhaust terminals, smoke stack, or any other source of contamination. Systems shall be designed to function properly, without build-up of pressure, when weather and other normally closed doors, hatches, and similar accesses are closed. Air conditioning systems will generally not be used to serve spaces requiring only 35 heating and ventilation. 12-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Air Conditioning (1 ) Design Criteria All staterooms, lounges, recreation rooms, mess rooms, dining rooms, offices, slopchest, dispensary, chart room, radio room, radar transmission room, electronics room, enclosed engine control room 5 and cargo control shall be air conditioned. The use of self-contained air conditioning units (water or air cooled) will be considered for spaces such as chart rooms, radio/radar/electronics rooms, cargo con- trol and engine control rooms and where the self-contained units are more practicable due to location or other design configurations of the 10 individual spaces. With the addition of sophisticated electronics equipment on the bridge, it is recommended that consideration be given to the air conditioning of the wheel house. All air-conditioned spaces with doors opening to the weather shall have a slight positive pressure to prevent infiltration. 15 Air conditioning systems design shall be in accordance with the applicable portions of SNAME Technical and Research Bulletin 4-7 and ASHRAE Standard 26R/ANSI B59.1. However, the following design temperatures are recommended for use in the calculation of ventilation and air conditioning loads for vessels operating in warm or tropical 20 limates. Cooling (Summer) Season : Outside Air, Ventilation 37°C (98.6°F) Dry Bulb Outside Air, Air Conditioning 37°C (98.6°F) Dry Bulb, 28°C (82°F) Wet Bulb Inside, air conditioned 25.6°C (78°F) Dry Bulb, spaces 18.3°C (65°F) Web Bulb, at 50% Relative Humidity Sea Water 29.4°C (85°F) 30 Heating (Winter) Season ;: Outside Air -20°C (-4°F) Dry Bulb, -20°C f-5°F) Wet Bulb, at 60% Relative Humidity Inside (quarters, public 21/TC (70°F) Dry Bulb, 35 spaces, etc.) Air 14.7°C (58.5°F) Wet Bulb, at 50% Relative Humidity 12-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Inside (dispensary or 23.9°C (75°F) Dry Bulb, hospital) Air 16.9°C (62.5°F) Wet Bulb, at 50% Relative Humidity Sea Water -2.2°C (28°F) The total air volume delivered to the dispensary or 5 hospital for either heating or cooling should be exhausted through the adjoining (dispensary or hospital) toilet and shower space. The reheat schedule for the air conditioning system shall be established by a detailed analysis of the load calculations so that all air conditioned spaces can be maintained at design temperatures. 10 The heater schedules shall be selected for economical design and operation. Minimum outdoor (ventilation air--20 nr/h/person (12 cfm/person) in lounges, recreation rooms, dining rooms and mess- rooms, and 26 nr/h/persons (15 cfm/person) in other spaces. 15 Minimum outdoor (ventilation) air changes/hour--3 for public spaces (i.e., lounges, recreation rooms, dining rooms, messrooms, etc.), and 2 for other spaces, but not over 85 m 3 /h/person (50 cfm/person). Air conditioning equipment, system components, etc., shall be protected from the weather and should be centrally located with 20 respect to the spaces served so as to reduce the runs of ducts, wiring, piping, etc., to a minimum consistent with efficient design. The design terminal temperature differential (difference between air temperature in the supply duct at the entrance to the terminal and room design temperature) of air conditioning supply terminals may be 25 as high as 17°C (30°F). The effect on air conditioning plant capacity, changeover temperature, fan heat, duct heat rise, and air requirements shall be carefully considered when selecting the terminal temperature difference for each system. Air changes shall be based on the inside dimensions 30 (with no deductions for furnishing equipment, etc.). In general, passageways and stairways within an air- conditioned zone shall be used for recirculating air return. The air velocity within the same shall not exceed 0.8 m/s (150 fpm). Each plant shall contain an automatic or manual, renewable, 35 dry media air filter, steam or electric preheater, cooling coil, high efficiency supply fan with motor and starter. Necessary transition pieces between preheater and cooling coil, cooling coil and fan intake together with flexible connections and vibration eliminators for the supply fan shall be provided. 40 12-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (2) Classes of Air Conditioning Systems In general, air conditioning spaces shall be served by central systems with cooling being provided by chilled water or direct expansion coils and heating provided by steam or electric heaters. The principal types of systems recommended are Dual Duct 5 Systems, Terminal Reheat Systems and Self-contained or Unitary Systems. For typical system arrangements, refer to Plates I and II at the end of this Section. Dual Duct System The dewpoint of air leaving the central coil during the 10 entire cooling cycle shall be constant and equal to design conditions. The chilled air mains and branches shall be sized for full cooling requirements. The hot air mains and branches shall be sized for approximately 65 percent of the volume. Air may be recirculated from the public spaces and shall, 15 where necessary, be ducted directly from each space. When recirculation is provided, changeover dampers (outside, recirculation, and exhaust air) shall be the multi-blade type, automatically operated by the control system. The dampers should modu- late so as to provide a maximum of 100% fresh air during the interim 20 cooling condition and a minimum fresh air requirement when the maximum design requirement is reached. Damper stops shall be provided to insure minimum design fresh (outdoor) air requirements. A manually-operated diverting switch shall be provided so that the changeover dampers may be properly controlled in the event of a failure of the main control 25 thermostat. Two central type fan-coil units, located in the fan room, shall cool, dehumidify, heat and distribute the air to the air mixing boxes located in the individual spaces. Cold and warm air mains and branches shall be insulated as necessary to control or prevent condensa- 30 tion. Air mixing boxes and damper controls shall be readily accessible for maintenance through a door or panel in the room side of the equipment. The dual duct system shall be fully automatic and shall be designed for automatic changeover from cooling to heating and securing 35 of the refrigeration plant with changeover point selected at approximately 4.4°C (40°F). See Plate I for typical system and control layout. Various preheater, reheater, cooling coil and control arrangements may be used as indicated by Plate I. For intermediate cycle operation, the system shall be capable of satisfying simultaneous cooling and heating require- 40 ments of the individual spaces. 12-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Air conditioning systems should be designed for operation with a constant off -coil dewpoint temperature during the entire cooling cycle. The final outside air volume requirements of the system shall be in balance with the exhaust air volume requirement and shall 5 be adjusted accordingly. Passageways shall be maintained at a slight positive pressure for the purpose of reducing infiltration through weather doors, from dissimilar spaces (such as machinery spaces). Terminal Reheat System The single duct, terminal reheat system with room control 10 is similar to the dual duct system. Terminal reheat systems may be high, medium or low velocity (pressure) types. The room dry bulb temperature is controlled by means of reheat in which a room thermostat automatically controls the heating media (steam, hot water or electric coil) which is supplied to the 15 reheat coil for each controlled space. A mixture of outside and return air is filtered, conditioned (preheated or dehumidified and cooled as required) in central fan rooms and distributed to individual reheaters at the spaces served. Conditioned air is supplied to each space to accommodate maximum design cooling load requirements. 20 Recirculation damper requirements are the same as speci- fied for dual duct systems. Sound attenuation boxes shall be furnished, as necessary, for each air conditioned space or terminal. The space terminal heater may be integral with or installed on to the discharge side of the box. 25 Inside design conditions for cooling may be slightly adjusted to suit the load characteristics of the particular spaces involved, providing the same effective temperature and other require- ments are complied with. The total air delivered to each space shall be constant 30 at all times. Necessary motorized steam or electric control devices complete with control thermostats, bypass valves, traps and strainers where necessary shall be supplied for the preheaters together with necessary contorls including automatic summer-winter changeover thermo- 35 stats for use with the refrigeration machinery. The supply air shall be either preheated or cooled, depending upon the climatic conditions, and circulated throughout the various spaces served via the ductwork, terminating in each area served with a reheat/attenuator box. 40 12-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The reheater attenuator boxes shall be provided complete with suitably sized reheater elements and necessary over temperature protection. Each reheater attenuator box shall be individually con- rolled by its own bulkhead mounted thermostat. The thermostats shall 5 be wired through reheater control panels, which shall house contactors, fuses and control voltage transformers, etc. Safety conductor panels shall be provided and interlocked with each fan starter, preventing any equipment from being in operation without the associated fan. 10 this Section For typical system arrangement see Plate II at the end of Unitary Air-Conditioning Equipment A unitary air conditioner generally consists of one or more factory-made assemblies which should include an evaporator or 15 cooling coil, a compressor and condenser combination, and may have provision for a heating function as well. Where unitary type equipment is provided in more than one unit (assembly), the separate units are to be so designed to be used in conjunction with each other, and the rating requirements shall be based 20 on the combined use of the matched units. Unitary assemblies, either separately or in combination with a heating plant, shall be designed to provide the functions of air circulation, air cleaning, air cooling with controlled temperature, and dehumidification, and may optionally include provision of the function 25 of heating and/or humidifying the various spaces. The requirements specified for the other air conditioning systems described shall also be applicable to unitary air conditioning equipment. (c) Heating and Ventilation 30 Spaces not air-conditioned shall be heated and/or ventilated in accordance with the requirements of the following table. Spaces not mentioned in the table shall be treated the same as similar spaces. Heating and ventilation load calculations shall be based on outside temperatures of 37°C (98.6°F) db in summer and -20°C (-4°F) db 35 at 60% rh in winter. 12-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Air changes in ventilated spaces only shall be based on gross volume calculated from molded dimensions (with no deductions from ceilings, sheathing, furnishings, etc.). The ventilation (outdoor air) requirement of a space shall be determined as the largest of the following three quantities: the rate of 5 air change, the number of occupants, and by the limiting temperature rise. The ventilation air supply to any space shall not be less than 60 m^/h (35 cfm) per occupant with fans operating at maximum speed. The galley, pantries and laundries shall have a slight negative pressure to confine heat and odors generated therein. Surplus air from 10 adjacent air conditioned areas may be exhausted through galley, pantries, small laundries, lockers, etc., when practicable. The air change for galley and main pantry is based upon mechanical exhaust. The mechanical supply shall equal the exhaust quantity minus the make-up air available from surrounding spaces. The 15 galley's exhaust system should be ducted directly to the weather near the top of the house. Self-contained air conditioning units or ducts from the main air conditioning systems may be provided for the centralized engine control room, cargo control room, wheel house and electronics room where these 20 enclosed control spaces are provided. The air conditioning units provided for these spaces shall be required to meet the design criteria of the main air conditioning system. Inlet air sources shall be such as to minimize the possibility of introducing hazardous or explosive vapors into these spaces. Ducting to these spaces shall be provided 25 with fire dampers in accordance with USCG requirements. Heating shall be provided for spaces as required by duct heaters, convector heaters or individual unit heaters. Mechanical ventilation should be provided to all non-air conditioned spaces, wherever necessary, to maintain the required air 30 change. Spaces to be ventilated, for example, are battery rooms, toilets, shower rooms, machinery spaces, steering gear rooms, pump rooms, bow thruster rooms, barge loading areas, etc. The steering gear room heating load calculation shall be based on heat transmission losses and a fresh air infiltration rate of 35 102 m3/n (60 cfm) with the fan secured and ventilation weather supply and exhaust dampers closed. 12-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Spaces requiring natural supply or exhaust ventilation, without direct connection to the weather, shall have doors fitted with undercuts or louvers in the lower panel. Where door louvers or under- cuts are not desired or are impractical, a bulkhead opening fitted with fixed louver, wire mesh or deflection grilles, may be used. The 5 type bulkhead opening shall be suitable for the space served and shall be in accordance with Regulatory Body requirements. The maximum air velocity through free openings (louvers, undercuts, etc.) shall not exceed 2 m/s (400 fpm). Louvers should be provided where air capacity transferred exceeds 127 nr/h (75 cfm) . 10 Any one system should serve only spaces which are similar with respect to seasonal heating and ventilation requirements. Battery rooms, lockers and boxes for stowage of batteries shall be ventilated in accordance with USCG, Subchapter J--Electrical Engineering Regulations. All battery room ventilation duct surfaces 15 exposed to storage battery fumes shall be coated with a paint resistant to the type of fumes emitted by storage batteries as described in Section 14 of these Specifications. Natural ventilation supply shall be furnished to meet the emergency diesel generator's combustion and radiator cooling requirements. 20 The emergency generator diesel engine radiator fan shall have sufficient capacity to induce air into the room from a weather, blow the air through the radiator and discharge it to a duct directly to the weather. The diesel engine's weather supply and discharge openings shall be provided with autmatic, motor operated, multi-louvered dampers, energized from the 25 emergency generator output. The multi-louvered dampers shall have provisions for quick disconnect to facilitate emergency manual operation. Care should be taken to balance the supply, exhaust and recirculation air flows of each conditioned area in order to prevent the migration of fouled air to adjoining spaces. Weathertight doors and 30 boundary doors between systems should normally be kept closed. Ventilation and heating requirements for the various spaces shall be in accordance with the following table: 12-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION VENTILATION & HEATING REQUIREMENTS FOR NON-AIR CONDITIONED SPACES Mechanical Natural Type Space Sup. Exh. Sup. Exh. Temp. Max. Air Heating Rise Change in ~ Temp. C° F° Minutes Type C° F° Remarks Air Cond. Equip, and Fan Rooms Baggage Either Either 8 15 Yes 8 15 Battery Room Bonded Stores Bosn's Stores Bow Thrust- er Room Butcher Shop Canvas Room Capstan Mach. Room Cargo Control Room Yes Yes Either Yes Yes Yes Yes Yes Yes Cargo Spaces Carpenter Shop Yes Yes Either 8 15 Yes Yes Yes 8 15 Yes 6 10 Yes 15 TA 4 40 C/FP 16 60 See Note #1 Heat Req. only in 10 Pass. Bag- gage Room. See Note #12 C/FP 4 40 10 20 See Note #6 See Notes #10, #18 15 20 C/UH 4 40 TA 4 40 C/FP 4 40 See Note EH #17 25 Yes 8 15 6 See Note #19 10 21 70 Recommend Cargo Con- 30 trol Room be an Air Conditioned Space Yes 20 See Note 35 #21 Yes 6 10 6 C/FP EH 16 60 See Note #17 12-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION VENTILATION & HEATING REQUIREMENTS FOR NON-AIR CONDITIONED SPACES (continued) Mechanical Natural Temp. Max. Air Heating Rise Change in " Temp. Type Space Sup. Exh. Sup. Exh. C° F° Minutes Type C° F° Remarks Clean. Gear Locker CO2 Room Desk Lock- ers, Deck Stores Deck Toilet (if pro- vided) Yes Yes Yes Either Yes Dry Stores Yes Elec. & Engrs. Workshops Elev. Machy. Room Engrs. Stores Emer. Gen. Room F.O. Fill- ing Station Galley and Galley Pantry Garbage Room Yes Yes Yes Yes Yes Yes Yes Yes 8 15 Either 8 Yes Yes 15 Yes 6 10 10 See Note 10 #5 See Notes #10, #18 6 C/FP 16 60 EH 15 TA 15 6 10 6 C/FP EH 16 60 20 Yes 8 15 6 See Note #19 11 20 20 See Notes #7, #19 25 Yes 8 15 10 C/FP 4 40 For Space Vent TA 30 See Art. 2(c)., Notes #9, #22 35 12-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION VENTILATION & HEATING REQUIREMENTS FOR NON-AIR CONDITIONED SPACES (continued) Temp. Max. Air Heating Mechanical Natural Rise Change in " Temp. 5 Type Space Sup. Exh. Sup. Exh. C° F° Minutes Type C° F° Remarks Gyro Room Yes 6 10 4 C/FP 4 40 Nat. Sup. From Ad- joining spaces 10 See Note #4 See Note Yes 20 #17 15 See Note Yes 8 15 6 #19 Yes 6 10 4 TA 21 70 See Note C/FP #14 TA 20 6 10 5 C/FP 16 60 Yes 6 10 5 Hawser Room Yes Lateral Thruster Comp ' t . Yes Laundries- Service Linen Room Clean Yes Linen Room- Soiled Linen Lock- ers, Daily Service Machine Shop Yes Main Mach'y Space Yes Oil Skin Lockers Paint Rooms Deck & Engr's. Yes Yes & Text Yes 6 10 25 Yes 15 8 15 6 C/FP 16 60 See Sec- Yes tion 64 30 31 12-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION VENTILATION & HEATING REQUIREMENTS FOR NON-AIR CONDITIONED SPACES (continued) Type Space Mecha Sup. nical Exh. Natl Sup. iral Exh. Temp. Rise C° F° Pantries Service Yes 6 10 Passage- way, stores Yes Yes Pump Room Yes Yes 8 15 Shaft Alley Yes Yes Slop Chest Yes Yes 6 10 Max. Air Heating Change in " Temp. Minutes Type C° F° Remarks Steering Gear Room Stores- Ships Dry Daily Galley & Bulk Food Yes Yes 8 15 10 6 UH UH 16 Nat. Sup. From Ad- joining spaces 10 3400 m 3 /hr Min. (2000 cfm) Min. See Note #18 15 40 See Note #19 and Text See Note #13 20 60 Recommend this be an air condi- tioned space 25 40 See Notes #17, #18 30 Yes 6 10 TA Stores- Steward's & Misc. Stevedores Toilets Yes Yes 6 10 6 6 12-12 TA EH/ 16 60 Nat. or FR/ C 35 Mech. Exh. Depending on Loca- tion. See Notes #9, 30 #22 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION VENTILATION & HEATING REQUIREMENTS FOR NON-AIR CONDITIONED SPACES (continued) Temp. Mechanical Natural Rise Type Space Sup. Exh. Sup. Exh. C° F° Max. Air Heating Change in Temp. Minutes Type C° F° Remarks Sewage Tank Space Yes Toilet & Showers Wheel- house Winch M.G. Windlass Machinery Room Yes Yes Yes Yes Yes Yes 8 15 6 10 8 15 8 15 10 (Infil- tration) TA C/ FP/ If Fresh 21 70 Air Limit- 10 ed, A.C. may be 6. See Notes #2 & #3 C or FP 10 50 Non-Mag- netic if Req. Also recommend this be an air condi- tioned space. 15 20 See #19 Note See Note #19 25 C Convectors (Steam, Hotwater, Electric) EH Electric Heater 30 FP Finned Pipe Heating Element TA Tempered Air UH Unit Heater (Steam or Electric) The word "Yes" under "Natural" means that a separate ventilator to the weather shall be provided. Minimum mechanical supply or exhaust volume 35 shall be 60 rrvfyh (35 cfm). Temperature rise as used in the table is the maximum allowable dry bulb temperature difference between the outside air design condition and the inside air leaving the space. 12-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Notes 1. Fan Rooms shall be heated only if equipment may be endangered by freezing. 2. Heating temperature for toilets and showers in medical service spaces to be 22°C (75°F). 5 3. Convectors or finned pipe heating elements may be omitted except in medical service spaces, if the exposure loss does not lower the space temperature more than 1°C (2°F) at heating design outside temperature. 4. Only if independent of the radar transmission room. If gyro and 10 radar occupy the same room, the space shall be air conditioned. 5. The exhaust terminal shall be located not more than 460 mm (18 in) above the deck. 6. Fan shall be non-sparking if volume exhausted from battery space is over 10 percent of total system volume. 15 7. This ventilation and heat required only when generator is not operating, and does not include generator combustion and cooling requirement described in preceding paragraphs of this Section. 8. Supply from convenient air conditioning system; also use for heating. 9. Discharge exhaust to weather above top of house, i.e., highest deck. 20 10. Either mechanical exhaust with natural supply or vice versa. 11. Systems to operate only when winch motor generator is operating. 12. Mechanical ventilation not required for spaces with less than 100 square feet deck area. 13. 8494 cu.m/hr (5,000 cfm) minimum exhaust via escape trunk natural 25 supply from Machinery Space. 14. Exhaust tumbler dryer direct to weather. 15. Use air conditioning supply systems for ventilating spaces contain- ing air conditioning equipment, 100 percent recirculation. 16. Both natural supply and exhaust may be used where neither mechanical 30 supply nor exhaust is close by, or mark-up air is limited. 17. Exhaust via Capstan Machinery Spaces where convenient. 18. Balance with supply from adjacent spaces. 12-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 19. Lower "Temp. Rise" shall be used if ambient of equipment is less than 49°C (120°F). 20. Supply terminal shall be not over 305 mm (12") above deck, and exhaust terminal at deckhead. 21. Base ventilation (air change) for container and unitized cargo 5 holds on gross cubic volume. 22. Air change is exhaust; mechanical supply to equal exhaust minus make-up from surrounding spaces. 3. CARGO HOLD Ventilation 10 a. Break Bulk Those portions of the cargo holds suitable for carrying dry cargo, including hatch trunks and dry cargo deep tanks, shall be mechanically ventilated with independent systems for each cargo hold. The supply air shall be distributed from one end of the 15 hold and exhausted at the opposite end. Supply and exhaust terminals, sized for 5 m/s (1000 fpm) net velocity, shall be provided in number and locations so as to assure uniform air distribution without dead air pockets. The ventilation supply and exhaust connections to the top 20 of deep tanks shall be made with flanged spool fittings having O.T. bolted gasketed covers outside of the tanks and rat-proofing screens inside of the tanks. A flanged spool piece, having the upper flange at a 15° angle, shall be fitted between each tank top connection and the duct when tanks are used for dry cargo. Suitable provisions shall be 25 made for stowage of the covers, and spool pieces adjacent to the tank top connections. Oil tight construction shall be provided to a height above the tank overflow. b. Roll on Roll off Ventilation for Ro/Ro type vessels must be provided in 30 sufficient quantity to dilute the concentrations of carbon monoxide (CO) to a maximum of 50 ppm (.005%) on a time weighted average. At 75 ppm (.0075%) the hold is to be cleared with alarms initiated by a CO detection and sensing system. At sea, an air supply of 1.7 m 3 /h/nr (1 cfm/ft^) of deck area shall be provided where fueled (gasoline) 35 vehicles are stowed. The requirements shall be in accordance with USCG regulations. 12-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Ventilation intakes and outlets shall be designed so as not to interfere with hatch cover or crane operation. Cargo hold ventilation fans shall be interlocked with the CO2 smothering system such that fans shut down automatically when the CO2 system is activated. 5 4. REFRIGERATED CARGO SPACES Refrigerated cargo spaces shall be provided with a mechanical fresh air supply system and natural foul air exhaust system. The fan shall have 50% speed reduction with local and remote manual control. Manual volume control dampers shall be provided for each system in accessible 10 locations. The terminals of each system within the spaces shall be equipped with air-tight insulated hinged plugs. The fresh air shall discharge in the vicinity of the cooling coil air inlets. All insulation thicknesses for refrigerated cargo spaces shall be in accordance with SNAME Technical Research Bulletin 4-7. 15 Refrigerated cargo spaces shall be insulated so as to maintain the specified temperature with an outside temperature of 38°C (100°F) db and without sweating on the warm side exposed surfaces of decks, bulkheads, or shell in way of the refrigerated spaces, at a relative humidity of 80% over an ambient air temperature range of 2°C (40°F) db to 38°C (100°F) 20 db in still air. Refrigerated machinery spaces (including fan coil units) shall be effectively ventilated and drained. 5. STEAM HEATING AND AIR CONDITIONING WATER SYSTEMS (a) Steam Heating Systems 25 A 241 kPa (35 psig) system shall be installed to furnish steam heating coils, convectors, unit heaters, finned pipe heating elements, commissary equipment, and cargo hold dehumidification equipment if required. An independent condensate return shall be discharged as required in Section 60. The above steam system may be served from the 30 ship's 345 kPa (50 psig) steam system, auxiliary boiler, exhaust gas boiler or other suitable steam source. Steam pressure gages shall be provided in mains to each air conditioning equipment and fan room, at hot water heaters, commissary spaces and cargo dehumidification equipment requiring steam. 35 Steam cooking applicances shall be fitted with a shut-off valve in the supply connection, and thermostatic trap, horizontal swing check valve, and gate valve in the return connection. In addition, the supply to steam tables shall have a thermostatic control valve, preceded by a wye strainer. 40 12-16 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Steam heaters shall be provided with a thermostatic control valve, preceded by a wye strainer with blowout valve, and a stop valve, on the supply side and a manual vent, dirt leg, combination float- thermostatic trap, and cut-out valve in the order named, on the return side. Cooling legs shall be led bare for a distance of at least 610 mm 5 (24 in) preceding the trap. Unit steam heaters shall be provided with a stop valve on the supply side and the same hook-up as for steam heaters on the return side. Steam convectors and fin-pipe elements shall be provided with an pproved type radiator stop valve on the supply side and wye strainer 10 thermostatic trap, and cut-out valve on the return side. The cooling lag shall be led bare beneath the unit for a distance of at least 610 mm (24 in), looped if necessary, preceding the trap. The trap shall be located, wherever possible, beneath the unit. (b) Air Conditioning Water and Drain Systems 15 Chilled water shall be supplied to cooling coils from the air conditioning refrigeration plant described in Section 65. The air conditioning chilled water system shall be the two pipe, reverse return, self-balancing type. Water systems shall be furnished with automatic makeup water. 20 All high points of water systems and cooling water coils in air condi- ioning equipment rooms shall be fitted with automatic float air vents with over-flow led to an open drain. Chilled water central cooling coils shall be provided with a cut-out valve, wye strainer with blowout valve, permanent calibrated 25 flow meter (venturi or orifice) or constant volume control valve with approved type gage, thermometer (remote type--one in each water supply branch to each air conditioned equipment room), and drain connection on the supply side, and a vent, remote thermometer, cut-out valve, pneumatic or electric control valve, balancing device with lock shield, 30 and a cut-out valve on the return side. Flow meters or constant flow alves may also be provided in the return side. After complete installation, the chiller and all piping shall be cleaned by flushing the system. During flushing operations, the chiller shall be by-passed. Also, automatic control valves shall be 35 emoved to prevent internal parts from collecting scale or other contaminants. The chiller shall be cleaned by flushing independent of the system piping in accordance with the manufacturer's instructions. Direct expansion cooling coils will be considered as an acceptable alternative to the chilled water coils described above. As 40 in the case of chilled water systems, the direct expansion system shall 12-17 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION be cleaned by purging the coils and all piping after installation in accordance with the manufacturer's instructions. Construction details for direct expansion cooling coils are listed in the following paragraphs. 6. CONVECTORS, FIN-PIPE ELEMENTS, UNIT HEATERS, ELECTRIC HEATERS, 5 BLAST HEATERS, WATER COILS AND AIR MIXING UNITS (a) Convectors Convectors shall be of good commercial quality. The casing and elements shall be of the same manufacturer. Steam convectors shall be selected for 241 kPa (35 psig) steam or other pressures as approved. 10 The entire convector, exclusive of the heating element assembly, shall be given a hot-dipped phosphate treatment or a cold-wash phosphate- chromate treatment and painted inside and out with one coat Zinc Chromate Primer, 52-MA-203, and two coats of finish paint as approved. Convectors shall be given a factory air test at 862 kPa (125 15 psig) pressure with the entire heating element submerged in water. (b) Fin-Pipe Elements Fin-pipe elements of good commercial quality shall be selected for 241 kPa (35 psig) steam and shall be constructed of 13 mm (1/2 in) nominal ips steel elements with steel fins or 1.4 mm (0.055 in) thick 20 copper tubing with copper or aluminum fins. Fin pipe element performance ratings shall be assumed to be 962 W/m (1000 BTU/hr/ft) for 30 mm (1 1/4 in) ips steel elements, and 1115 W/m (1160 BTU/hr/ft) for 38 mm (1 1/2 in) and 1673 W/m (1740 BTU/ hr/ft) for 50 mm (2 in) copper elements, based on 241 kPa (35 psig) 25 steam. Test pressures for fin-ipie elements shall be the same as required for convectors. (c) Unit Heaters Unit heaters shall be of good commercial quality and selected 30 for 241 kPa (35 psig) or other pressure as approved and a final air temperature of 52 Q C (125°F). Test pressure requirements shall be the same as for convectors. Construction of steam coil shall be as required for blast heaters. Headers shall be horizontal, with steam and drain connections at the center, and 35 tubes vertical. The casing shall be at least 1.2 mm (#18 USSG) sheet steel; and shall be finished and the same as required for convectors. Adjustable rugged, rattle-free louvers shall be provided on unit face. 12-18 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A warning plate shall be attached at the steam supply valve for each unit heater in the steering gear room directing that the ventilation fan shall be shut-down and duct supply and exhaust dampers closed before the unit heater steam supply valve is open. (d) Electric Heaters 5 Electric heaters, in general, shall be of good commercial quality and constructed in accordance with the requirements of the applicable USCG regulations and the electrical sections (such as Section 90) of these specification. Electric Convection Heaters 10 Electric convection heaters should be of the surface bulkhead mounted type and be provided with integral, adjustable temperature control (thermostat), automatic reset and manual reset thermal cutouts for single phase heaters or integral control transformer and contractor with holding coils for three phase heaters. Each heater shall comply with USCG 15 Regulations, Subchapter F, CG-259. The entire convector, exclusive of the heating elements, shall be given a hot-dipped phosphate or cold-wash chroma te treatment and coated inside and out with an approved heat resistant coating. Heater casings and all sheet metal should be 1.2mm (#18 USSG) sheet steel or equivalent. 20 Heating elements should be of the fin tube type. Heating banks should consist of shock-proof sheath enclosed heating elements of high quality wire centered within the sheath and imbedded in electrical insulating and heat conducting refractory material. Each terminal end should be sealed to prevent the entrance of moisture. Heating element 25 support flanges and fins should be permanently attached by an approved method to the sheath for rigid support and rapid heat transfer. Each heath and fin should be continuously coated with a suitable material apable of resisting corrosion from high humidity or salt water environ- ment without cracking, checking or spall ing under all design operating 30 conditions. Electrical Air Duct Preheaters and Reheaters Electric tempered air heaters should have casings of at least 1.5 mm (#16 USSG) sheet metal or equivalent and should be reinforced to provide adequate strength. Heaters 610 mm (24 in) or longer should be 35 stiffened with corner bracing and a crossbrace for strength. Heater casings should be hot-dipped galvanized, electro-galvanized or equiva- lents treated after construction. Casings may be of 300 series stain- less steel. Electric air duct heaters shall be provided with over temperature safety devices. The sensing unit of the manual reset type 40 safety device shall be in direct contact with the heating element to a maximum of 232°C (450°F). Heating elements should be designed and constructed using the same requirements listed for electric convection 12-19 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION heaters. Tempered air heaters shall be suitable for marine use and constructed in conformance with USCG requirements. Heater controls shall be provided with an interlock with the fan motor so that the heater cannot be energized unless the fan motor is also energized. Electric Unit Heaters 5 Electric unit heaters shall be of quality suitable for marine use in accordance with requirements of the USCG and IEEE #45. Heater casings and all sheet metal shall be at least 1.2 mm (#18 USSG) sheet steel or equivalent. Casings and all sheet metal parts, exclusive of heating elements, motor and controls, should be given corrosion and heat 10 resistant treatment equivalent to that described for electric convection heaters. The fans should have 1.2 mm (#18 gage) aluminum blades with zinc plated steel hubs or equivalent. The hubs shall be properly secured to the motor shafts. Fan blades shall be fitted with a rugged protective guard and motor rigidly supported. A suitable guard shall be provided 15 to protect personnel from contact with moving parts. Heating elements should be designed and constructed using the same requirements listed for electric convection heaters. Automatic reset and manual reset type thermal overheat protec- tion and an adjustable thermostat should be provided for each heater. 20 Electric Strip Heaters Electric strip and panel heaters shall also be of quality suitable for marine use, meeting the requirements of the USCG, IEEE #45, and Section 90. Casings and all sheet metal shall be at least 1.2 mm (#18 USSG) or equivalent. Corrosion and heat treatment should be 25 provided similar to that described for convection heaters. Baffles should be provided at the heater tops for drip-proof protection. Heating elements should be of the tubular type, shock-proof, high quality wire, and be suitably electrically and thermally insulated with terminal ends sealed to prevent the entrance of moisture. 30 (e) Blast Heaters Heaters shall be of good commercial quality with copper tubes, fins and brass or copper headers. Casing shall be of galvanized or stainless steel. Steam and condensate headers shall be constructed of 1.7 mm (0.065 in) thick wall seamless copper tubing or equal. Tubes 35 shall be 0.9 mm (0.035 in) thick seamless copper not less than 13 mm (1/2 in) O.D. tubes and shall be silver soldered to the headers. Headers shall be horizontal, with steam and drain connections at the center and tubes vertical. Fins, 12 per 25 mm (12 per in) max., shall be of sheet copper 40 not less than 0.3 mm (0.012 in) thick. Heaters shall be designed for and tested at pressures required for convectors. 12-20 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Casings shall be at least 2.7 mm (#12 USSG) sheet metal when the longest dimension is less than 1.5 m (60 in) and at least 3 mm (#11 USSG) when the longest dimension is 1.5 m (60 in) and shall not have any appreciable air leaks. The capacity of the heaters shall be based on a steam pressure 5 of 241 kPa (35 psig), less an allowed 35 kPa (5 psig) line pressure drop and the design pressure drop through the control valve. Preheaters and tempering heaters shall be of the internal steam distributing tube construction. Internal tubes shall be supported at least ewery 305 mm (12 in). The maximum face velocity through air heat- 10 ers shall not exceed 5.1 m/s (1000 fpm) with full fan volume. Preheaters and tempering heaters shall be installed before the fan inlet and shall not be oversized. Preheaters for ventilation systems shall be selected for a design final temperature between 13-16°C (55-60°F) and tempering heaters, between 13-31°C (50-70°F) with outside air 15 temperature of -18°C (0°F). Preheaters for air conditioning systems shall be selected to suit design requirements. When using 100 percent outside air at -18°C (0°F) the discharge temperature shall not be less than 7°C (45°F). An anti -freeze thermostat shall be provided to prevent freeze-up when using 100 percent outside air. 20 (f) Cooling and Heating Water Coils Water coils shall be of good commercial quality and pressure tested the same as steam heaters. They shall be installed with tubes horizontal and have 16 mm (5/8 in) or 20 mm (3/4 in) O.D. tubes arranged for serpentine counterflow circulation. 25 Central cooling coils shall have the number of rows of tubes in accordance with the American Refrigeration Institute certified rated coils and shall be based on an inlet water temperature of 6°C (42°F) with a temperature rise of about 5.6°C (10°F). Water coils shall be sized for a face velocity of 2.5 m/s 30 (500 fpm) maximum. The maximum wet coil air friction shall not exceed 249 Pa (1 in H 2 0). (g) Direct Expansion Cooling Coils The construction of the coils shall be similar to that speci- fied for steam coils, except that they shall be installed with tubes 35 horizontal and shall have tubes 16-19 mm (5/8-3/4 in) O.D. arranged for serpentine counterflow circulation. The liquid and suction connections shall be on the same side of the coil and shall be of the header type construction. Access to both sides of the coil is required and should be of the hinged door type located in the coil transformation sections. 40 12-21 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The size of the coils shall be based on a maximum face velocity of 2.5 m/s (500 fpm). The fin spacing shall not be more than 12 fins per 25 mm (1 in) and the maximum air pressure drop shall not exceed 124 Pa (0.5 in H2O) at the wet coil condition. Drain pans shall be furnished for each cooling coil and they 5 should be constructed of at least 2.3 kg (5.1 lb) and sheet steel, extending at least 305 mm (12 in) ahead and 451 mm (19 in) beyond the coil face and fitted with 50 mm (2 in) drain connections at each end of the pan with strainer and water seal. The discharge from the drain pans should be led directly into an open drain in the fan room. The drain pan shall 10 be an integral part of the cooling coil assembly. The pan should be externally covered with 2 mm (1 in) thick approved insulation and sheathed with 1.50 mm (#16 USSG) sheet steel. All steel components shall be galvanized, stainless steel or be equivalently corrosion resistant treated after fabrication. 15 (h) Air Mixing Boxes Air mixing boxes for Class "G" systems shall be of approved design suitable for shipboard application. They shall be laboratory witness tested to demonstrate performance in compliance with requirements herein, unless previously tested and approved. The boxes, when possible 20 shall be located overhead in toilets and showers of the space served and sized to fit between the deck beams. The air mixing boxes for Class "G" systems shall have a hot and a cold air proportioning valve or valves actuated by a room thermostat and shall have a constant volume regulator to control the flow of air. 25 Volume regulation over the complete mixing range regulation (0 percent cold air) shall be within +5 percent of the design volume, with static pressure in the hot and cold air ducts equal to at least the fan design statis pressure. The leakage rate of the air valves in hot and cold air 30 closed positions shall not exceed 2 percent. The actual leakage rate shall be established at the manufacturer's recommended maximum pressure for each type and size valve, both by volume and temperature measurement of hot, cold and mixed air. For testing, the temperature differential between hot and cold air shall be at least 100°F. Test of leakage rates 35 shall be made with and 103 kPa (0 and 15 psig) pressure applied to the valve motor. Calculations for space supply air quantities shall allow for temperature rise of cold air due to leakage through the hot air damper as determined from the witness test; i.e., shall be based on actual 40 mixed air temperature entering the space being observed. The entire enclosures shall be of at least 0.9 mm (#20 USSG) steel. All moving and working parts shall be CRES or bronze. The enclosure and other steel parts shall be coated with an approved in- organic zinc silicate, MIL-P-23236, Type I, Class 3 or hot-dipped 45 12-22 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION galvanized after fabrication. As an alternate, the enclosure may be fabricated of Galvanneal steel, or equal. In general, aluminum shall not be used. Air valve motors shall be located outside of the main air stream, and linkage, if any, made simple. No pulleys or cables shall be used. Bearings shall be oilite bronze. Adequate hinged access panels 5 should be provided for the inspection and maintenance of all parts. The boses shall have acoustical treatment so that variations in sound pressure level over the full range of the mixing valve settings shall not raise room noise levels above the specified limits. Operation of the boxes shall not be adversely affected by vibration or ship motion. 10 Sound attenuation boxes for the Class "F" system shall be con- structed of the same gage and material as specified for the air mixing boxes. The boxes shall also be soundproofed so that the sound pressure level shall not raise the room noise level above the specified limit. The reheat coil may be mounted within the box or external to the box on 15 the leaving air side. 7. AIR FILTERS All supply systems having cooling and/or heating coils shall be pro- vided with manual renewable marine type air filters. Filter shall have certified performance based on National Bureau of 20 Standards test method. Hinged doors shall be provided for access to plenums adjacent to filters. The plenums and access shall be of ample size to faciliate replacement of filter media. Air filters shall be designed for a velocity not to exceed 2.5 m/s 25 (500 fpm). They shall be of the renewable manual or automatic marine type. Filters shall be adequately protected against dirt during conduc- tion and shall not be operated or used until system is thoroughly cleaned. Filters must be put in regular operating condition before the 30 fans to which they connect are operated for any purpose, such as tempo- rary ventilation or adjusting. After all adjustments, etc., are completed, and just before the vessel is delivered, filters shall be put in "like new" condition. An area of filter media equal to the area of media consumed during construction and in adjustment, shall be 35 provided in addition to the 100% spare medium requirement. A permanently installed dry type air filter gage, graduated to read from 0-249 Pa (0-1 in water gage), shall be installed where necessary. 12-23 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 8. THERMOSTATIC CONTROLS AND THERMOMETERS The thermostatic control system except, generally, for commissary equipment shall be of the pneumatic type and as indicated on Plates I and II at end of this Section. Self-contained electric or electronic type devices may be furnished, provided that they are certified and can 5 perform equal to that specified herein for the equivalent pneumatic device. All control valves shall be of the modulating type, sized for actual design requirements rather than for maximum coil capacity, and with ratio plugs or similar devices for accurately metering flow. 10 Pneumatic control valves shall have metal, neoprene, silicone rubber, or equal diaphragms, position indicators where exposed, bronze bodies, and renewable seats, discs, and tharacterized poppets. The trim for control valves shall be stainless steel for steam and bronze for water. Valves 25 mm (1 in) ips and smaller shall have union ends; larger sizes 15 shall have flanged ends. Valves shall operate without objectionable noises. Preheaters and tempering heaters shall be controlled to deliver air at design temperature over the entire range of the heating load. Con- trols for systems having preheaters and cooling coils shall be sequenced 20 to provide a suitable dwell between respective set points. Control units such as damper motors, thermostatic valves, etc., shall have an accessible stopbleed cock in the air line. Class "G" systems shall have room thermostats located on a bulkhead about 1.5 m (5 ft) above the deck and so as not to be adversely affected 25 by localized cold or heat sources. Thermostats in public spaces shall have degree markings, thermometers, and be key operated. All other thermostats shall be external knob operated, as approved, with degree markings but without thermometers. Duct bulbs or remote devices shall be located at least 2.4 m (8 ft) 30 from the discharge face of the controlled coil and away from splits or branches. Duct bulbs shall be shielded from the effects of radiant heat when necessary. All duct thermostats shall be of the non-bleed or non-continuous bleed type. All exposed capillary tubing shall be encased in flexible 35 spiral armor. Light channel or angle bars, supported from structure, shall be provided as required for proper support and protection of capillary and air tubing. In no case shall capillary and air tubing be supported by attachment to insulation or bare ducts. Duct bulbs shall be provided with separate sockets and shall be secured to the duct 40 by flange type connections. Insertion bulbs for liquids shall be provided with copper separable wells and sockets. 12-24 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Weather air, recirculation, and exhaust dampers for Class "G" systems shall be pneumatically operated. Damper operators (motors), including those for the emergency generator air dampers, shall be sized for a torque 100 percent in excess of actual requirements as established by catalog ratings. 5 Controllers (thermostats) shall be of the proportional action type, with suitable integral stabilizing mechanism to prevent hunting and to limit droop to 0.5°C (1°F). Bulbs located outside in the weather shall be suitably protected. Thermometers of the remote dial type, and air pressure gages (at 10 all mains and branch connections to the thermostats), shall be provided for checking the outside air and performance of all heaters, coils and controls, except those serving small spaces such as staterooms and offices where only air gage connections are required. Thermometers shall have 90 mm (3 1/2 in) diameter dials with range suitable for the application, 15 and have l°Celsius graduation except for hot water which may have 2°Celsius graduations. The panel boards shall be constructed of 1.5 mm (#16 USSG) steel, suitably stiffened and supported, and with baked enamel finish. Clean compressed air, free of oil and water, shall be provided by 20 the ship's control air system as described in Section 72. Air pressure reduction shall be accomplished in two steps. The moisture eliminator may be either of the chilled water or chilled air type. The air tubing shall be type "L", seamless, hard drawn, copper, using sweated fittings throughout. 25 One repair kit for testing and calibrating control instruments shall be furnished for each vessel. Self-contained type control devices, including those controlling steam- heated commissary equipment, shall conform to Specifications MIL-V-19772, Type II, Class I, Design A. 30 9. FANS AND MOTORS Fans should conform with the Maritime Administration standard plans No. S38-1-101, S38-1-102 and S38-1-103. Belt driven centrifugal fans should also conform to these requirements, including test, except for speed and drive. Fans with total pressure greater than 937 Pa (3 3/4 in) 35 shall meet AMCA Class II or III construction requirements as applicable. AMCA Class II centrifugal fans shall be constructed with 3.6 mm (#10 USSG) scroll and side sheets and AMCA Class III centrifugal fans with 3.6 mn (#10 USSG) scroll sheet and 4.4 mm (#8 USSG) side sheet. Maritime Administration standard fans (Class I) are not acceptable 40 for Class II or III service. 12-25 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Belt drives shall be sized for 150 percent of the motor name plate rating. The motor shall be mounted on an approved adjustable base. Propeller fans shall not be used when static pressures are in excess of 125 Pa (1/2 in water). Centrifugal fan wheels shall be constructed of steel or aluminum. 5 If of cast aluminum, the material shall conform with Federal Specifica- tion QQ-A-601, Alloy 356-T6 at least 6 mm (1/4 in) thick, for fan sizes 20 cf and larger and at least 5 mm (3/16 in) thick, for fan sizes 10 cf and smaller. Each cast aluminum wheel shall be spin tested up to 25% above the rated rpm for at least 3 minutes. A whirl test to destruction 10 shall be conducted on the cast aluminum wheel for each fan size, at the time of the performance test at the manufacturer's plant. Non-sparking type fans shall conform with the requirements of AMCA Bulletin 99, Type "B" AS401 . The non-ferrous material shall be USCG approved. 15 The fan wheel shall be secured to the motor shaft by a key and two set screws with positive means of location, or by a key and castellated nut. Internal fan parts should be smooth and free of projections which could interfere with air flow. Fan casings should be airtight. Standard bellmouths shall be provided on all axial flow fans when 20 the inlet is from free air or a plenum. Symmetrical inlet cones (the slope on all sides not to exceed 0.13 rad. (7 1/2°)) shall be provided on all axial flow fans when the inlet is from a coil or where the approach duct is straight for a distance less than eight equivalent casing diameters. Where use of the symmetrical inlet cone is imprac 25 tical, a standard bellmouth may be used. Fan sets must show specified performance in a test made in accordance ith ASHRAE Standard 51-75 (AMCA Test Bulletin 210-74) and AMCA Bulletin 300 for sound. The place of the test shall be approved. Tests shall be made at the manufacturer's expense. An approved type sound meter shall 30 be used for determining sound ratings. Prior to tests the fan manu- facturer shall submit detail plans showing fan construction, dimensions, bill of material and characteristic curves for each size fan and motor set for approval . Centrifugal fan and driving motor shall be mounted on the same 35 foundation. Centrifugal and axial flow fans located in the vicinity of or serving living and working spaces shall be mounted on approved type vibration eliminators. Flexible duct connectors, properly rat proofed, shall be provided at the fan inlet and discharge of each centrifugal fan and those axial 40 flow fans mounted on vibration eliminators, except for pump room yent fans. 12-26 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Nameplates shall be located in a prominent position on fans, motors and controls. Nameplates shall contain sufficient information to accu- rately identify the equipment, and the manufacturer. Fan nameplate data shall include the MA fan size number, rated capacity in cfm, system capacity in m^/s (cfm), rated static pressure, system static pressure, 5 speed in rpm, motor kw (horsepower) and system number. The following data shall be submitted by the fan manufacturer: (a) Detail plans showing fan construction, dimensions and a bill of material . (b) Fan performance curves for each size fan and motor set. These 10 curves shall show the relation of capacity, m^/s (cfm) to power input (kw), power (brake HP), static pressure, total pressure, static and total efficiencies, decibel level at full motor speed, and sound power data at each octave band. (c) Corrected performance curves for belt drives. 15 (d) Fan certification data sheets indicating the latest construction plan number and revision. 10. TRUNKS, DUCTS, ACCESSES & HOODS Duct Air Velocities (a) Air Conditioning Systems 20 Same velocities as specified for Mechanical Ventilation Systems where quiet operation is essential. However, velocities as high as 25 m/s (5000 fpm) may be used provided the system is provided with acoustical treatment to confine and absorb generated noise (both vibra- tion and airborne) to meet the sound levels specified in Section 1. 25 (b) Mechanical Ventilation Systems (Supply and Exhaust): 18 m/s (3500 fpm) if quiet operation can be maintained. Corresponding decreases in velocity may be necessary in areas where quiet operation of system is necessary. In areas where quiet operation is essential, 10 m/s (2000 fpm) maximum unless specifically approved. 26 (c) Machinery Ventionation Systems (Supply and Exhaust): 18 m/s (3500 fpm) maximum. (d) Natural Vent Ducts Serving Mechanically Ventilated Spaces (Supply or Exhaust—Direct or Indirect): 5 m/s (100 fpm) for less than 1.9 m 3 /s (4000 cfm) 35 6 m/s (1250 fpm) for between 1.9-2.8 m 3 /s (4000-6000 cfm) 8 m/s (1500 fpm) for more than 2.8 m 3 /s (6000 cfm) 12-27 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (e) Natural Vent Ducts Serving Naturally Ventilated Spaces: 4 m/s (800 fpm) maximum. Trunks, ducts, covers, louvers, etc., exposed to the weather shall not be less than 3 mm (1/8 in) steel plate and shall be watertight. Build-in trunk construction shall not be used for ducts having less than 5 0.09 square meter (one square foot) cross-sectional area, and minimum dimension less than 230 mm (9 in). Vertical trunks or ducts in shops, stores and other locations where ducts are subject to damage, shall not be less than 3 mm (1/8 in) thick. All vertical trunks or ducts in dry cargo holds shall not be less than 10 6 mm (1/4 in) thick. All horizontal ducts in dry cargo holds shall not be less than 5 mm (3/16 in) thick. Sheet metal ducts shall be made with either riveted or hooked seams (sealed with hot solder or approved fire resistive high velocity duct sealer) or welded seams (continuous or spot welded) with external seams 15 and joints sealed with a 25 mm (1 in) wide strip of approved duct sealer or equal. All installed ductwork shall be airtight. Sheet metal ducts shall be made of hot-dipped galvanized steel; the minimum thickness of the material shall be determined by the diameter for round ducts or the maximum dimension for rectangular ducts as follows: 20 All vertical exposed ducts 1.5 mm (0.0598 in) Horizontal or concealed vertical ducts over 760 mm (30 in) 1.5 mm (0.0598 in) Horizontal or concealed 25 vertical ducts 470-760 mm (18 1/2-30 in) 1.2 mm (0.0476 in) Horizontal or concealed vertical ducts 320-460 mm (12 1/2-18 in) 0.9 mm (0.0359 in) 30 Horizontal or concealed vertical ducts 150-300 mm (6-12 in) 0.8 mm (0.0299 in) Horizontal or concealed vertical ducts less than 35 150 mm (6 in) 0.6 mm (0.0239 in) Factory fabricated spiral duct (round and F.0.) up to 300 mm (12 in) diameter may be .6 mm (#24 gage) and ducts up to 610 mm (24 in) may be .8 mm (#22 gage). Factory fabricated fittings shall be at least 1 mm (#20 gage). 12-28 40 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All ducts in machinery spaces shall not be less than 1.5 mm (0.0598 in) in thickness. Circular or flat oval duct section shall be used in lieu of rectangular when passing through beams, girders or other strength members. Access holes with bolted plates shall be provided for cleaning 5 and maintenance of equipment and ducts. Hinged doors for access shall be provided as follows: (1) Entrance to plenums for servicing filters. (2) Both sides of cooling coils. (3) In ducts at inlet and discharge sides of axial fans. 10 (4) In joiner ceilings for access to concealed equipment (heaters, access plates, valves, vents, controls dampers, etc.) size shall be at least 0.6 m (2 ft) sq. and location shall favor equipment most frequently requiring inspection and servicing. 15 All ducts which must pass over electrical equipment shall be made watertight and insulated to prevent condensation from dripping upon electrical equipment. Ducts should not, if possible, be located above electrical equipment. Sufficient flange or approved clamp connections shall be provided 20 for making ducts portable when required for servicing. Slip joints shall not be used. In the case of non-watertight, rectangular ducts, consideration will be given to joints consisting of a short length of duct made in two pieces: one piece forms the top and the two sides of the joint and is 25 provided with horizontal flanges parallel to the run of duct. This piece is joined to the two adjoining lengths of duct with either "pop" rivets or sheet metal screws. The other piece of the joint is the bottom which is fastened to the flanges with machine screws or sheet etal screws. 30 Flexible duct may be used for connecting ducts to room air mixing boxes. These connections should be limited to 610 mm (24 in) length. All openings on the lowest weather decks shall have hinged water- tight metal covers, except for air lift type openings fitted with louvers which may be furnished with protective covers as specified in 35 Section 22. Covers shall be provided for all openings exposed to the weather. 12-29 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All elbows in ducts and trunks shall, in general, be designed with a standard throat radius. When throat radius is less than 1/2 standard, baffles and concentric radius turning vanes shall be installed to give quiet and efficient operation. Small radius turning vanes shall not be used in elbows unless structural considerations necessitate the use of 5 miter throat radii. Turning vanes or equalizing grids shall be provided to achieve uniform air flow to registers, grilles and diff users. Converging transformation pieces shall have a taper not exceeding 0.355 rad. (20°C) on a side. Diverging transformation pieces shall have a taper not to exceed 0.13 rad. (7 1/2°) on a side where possible. When 10 the diverging taper exceeds 0.17 rad. (10°) splitters shall be fitted to reduce the expansion angle. Gaylord exhaust ventilators or equal of the latest design (including quick release automatic fire damper, automatic hot water cleaning facilities, necessary hot water and drain piping, and grease extracting 15 facilities) shall be provided over the ranges, fryers, griddles, steam kettles, steam cookers and bake ovens. 11. TERMINALS, GRILLES, WIRE MESH SCREENS AND DAMPERS All air terminals shall meet USPHS requirements. They shall be of a type and size suitable for the intended service. All supply terminals, 20 except directional types, shall be capable of properly ventilating the space involved without creating drafts. Diffusing/blast terminals shall be used in gallies, pantries, and similar ventilated heat produc- ing spaces with joiner ceilings. Machinery space supply terminals, except those behind siwtchboards, shall be of the adjustable directional 25 type with integral throttling damper. Ventilation space supply terminals serving working spaces shall have integral or separate throttling dampers for manually controlling the volume of air flow. Supply terminals serving air conditioned spaces shall be designed and constructed so that visible moisture will not occur 30 on the cones when air at the design terminal temperature difference is supplied to the space and the space dewpoint is at least 5°C (9°F) above that corresponding to summer inside conditions. Air velocity in air conditioned spaces shall not exceed 0.2 m/w (35 fpm) at heads of berths and 0.25 m/s (50 fpm) elsewhere. 35 Non-working parts of registers, diff users (i.e. factory-fabricated parts) may be furnished with prime coat only, provided that the parts are suitably processed to prevent corrosion immediately before painting. Otherwise, they shall be galvanized or cadmium plated. Lever operators, multi -louver blades and similar parts shall be zinc or cadmium plated. 40 Connecting bars, bearings, rivets, springs, washers, nuts and similar parts shall be made of bronze. All turning surfaces shall be bronze on bronze. The assembly of registers shall be shock resistant and rattleproof. 12-30 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Balancing dampers, when built integral with diff users and supply registers or installed adjacent to the inlet of these terminals, shall be of an opposed acting, single group operated type which equalizes the air flow over the terminal as well as throttles the air flow. Balancing dampers in ducts shall be of the butterfly or splitter 5 type with indicator. After the system is balanced, the damper operator shall be tack welded so as to permanently secure the damper in the balanced position. Balancing dampers shall be located as remote from terminals as possible. Exhaust system weather discharges which cannot be air lifted, 10 shall be provided with gooseneck or mushroom terminals. Weather terminals shall be basically of the self-draining air lift type (or equal as approved), to keep out water and spray from weather and deck washdown. Weather ventilation terminals and covers may be constructed of 15 reinforced plastic except where steel covers are required. Goosenecks, covers, etc., may be in accordance with Builder's standards if approved for the particular application. Vent terminals and duct dampers, unless otherwise noted, shall be constructed of hot-dipped galvanized or corrosion resisting material as 20 approved. Nuts, washers, springs, rivets, bearings, journals, and similar parts shall be of bronze or corrosion resisting material. Sheet metal parts shall not be less than 0.9 mm (0.035 in) thick material, except parts of diffusers. Registers shall be used for exhausting toilets and showers and 25 grilles or registers shall be used for exhaust or return air from mess rooms, dining rooms and passageways, etc. The net air velocity through weather louvers and air lifts shall not exceed approximately 5 m/s (1000 fpm) [2.5 m/s (500 fpm) based upon gross face area]. 30 Weather adjustable louvers shall be constructed equal to M.A. Standard Plans S38-1-31 and 32, except that blades shall be constructed of AISI 304 stainless steel. Other adjustable louvers fitted in ducts shall be constructed equal to M.A. Standard Plans S38-1-31 and 32, except the frame may be 35 constructed of 1.5 mm (#16) steel and the depth of the frame is not required to equal the width of the blades. Also, the blades may be constructed of 1.5 mm (#16) steel. 12-31 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Stationary weather louvers shall be of steel construction. The coaming shall be at least 6 mm (10.2# plate) (or as required for struc- tural compensation) and of sufficient depth to include louver blades. Louver blades shall be parallel and spaced 50 mm (2 in) apart, at a 0.79 rad. (45°) angle from the horizontal and at least 13 mm (1/2 in) 5 overlap between blades. Guards shall be provided in way of terminals in cargo and stowage spaces, to prevent blocking terminals and interference with air flow. Fire dampers shall be fitted in locations required by U.S. Coast Guard regulations. All dampers, including fire dampers, shall be of 10 metal construction and fitted with an indicator to show the position of the damper and a combined adjusting and locking device so located as to be easily accessible and visible. 12. VENTILATION INSULATION AND LAGGING All insulating materials shall conform with the requirements of the 15 Regulatory Bodies. All parts of ventilation, heating and air conditioning systems (including equipment, access covers, flanges and recirculation ducts) shall be covered with the type of insulation specified to prevent sweating and external heat transfer, as follows: 20 (a) Air Conditioning Systems—Insulate 25 mm (1 in), vapor seal and lag completely. (b) Recirculation Systems—Insulate entirely 25 mm (1 in) except exposed portions within areas served and fans. Lag and vapor seal in hot or wet spaces; otherwise 25 lag exposed insulation only. (c) All Ventilation Supply Systems (concealed or exposed)-- Insulate 25 mm (1 in) except as noted in (f) below. Ducts in spaces served and serving only the same space should be insulated in accordance with intended vessel 30 service. (d) Ventilation exhaust systems (concealed or exposed) exhausting unheated spaces and passing through heated spaces — Insulate 25 mm (1 in). In addition exhausts from heat producing spaces (concealed or exposed) — Insulate 35 25 mm (1 in) where passing through heated or air conditioned spaces. (e) Hot Blast Heating Systems — Insulate entirely 25 mm (1 in), except fan and exposed ducts wihin the space served. Tempered Air Systems — Insulate 25 mm (1 in) portions 40 within fresh air plenums and where temperature differential exceeds 18°C (35°F), except fans. 12-32 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (f) Portions of all supply, air conditioning and recircula- tion systems passing through machinery spaces and hooded areas shall be insulated 50 mm (2 in). They shall also be vapor sealed and lagged where specified herein. Exposed ventilation ducts serving only the space in which 5 they are located need not be insulated unless it is deemed prudent for the intended service. Trunks and ducts in the casings and uptakes shall be insulated. Insulation on rectangular ducts carrying cold (chilled) air shall be 25 mm (1 in) thick fibrous glass board, with minimum density of 48 kg/m^ 10 (3#/cu. ft.), and with a factory-applied aluminum foil vapor barrier, minimum thickness of 0.5 mm (0.002 in). Insulation on round and flat oval ducts, and bends, shall be the same as specified for rectangular ~. ducts, except it may be flexible type with a minimum density of 24 kg/m (1 l/2#/cu. ft.). All joints of vapor seal shall be lapped, 50 mm (2 in) 15 minimum, or sealed with 75 mm (3 in) wide aluminum foil tape. To insure integrity of vapor barrier, all joints shall also be coated with an approved vapor sealing compound, compatible with the aluminum foil vapor barrier. Insulation (both thermal and acoustic) shall be secured to duct 20 with an approved adhesive. In addition, insulation on rectangular ducts over 610 mm (24 in) wide, and on equipment and plenums, shall be further secured with metal clips, pins or studs (spacing as approved) secured to the insulated surface. Adhesive shall be checmically compatible with the insulated surface. 25 All materials in accommodation spaces and serving areas must be approved and rated as conforming to the applicable USCG Regulations 164.009, 164.007, 164.012-5c. Elsewhere, all materials must be fire retardant or self -extinguishing. Air conditioning preheaters, ducts, cooling coils, fans and other 30 equipment carrying chilled or recirculated air shall be completely insulated and installed with an approved vapor seal, unless condensation can be controlled by other means. * Insulation for ventilating and heating ducts in exposed areas shall be installed the same as for chilled air and recirculating ducts, except 35 that vapor barrier paint is generally not required. Insulation for ventilating and heating ducts in concealed areas shall be installed the same as for chilled air and recirculating ducts. In areas where insulation may be subject to damage, protection such as galvanized metal sheathing or guards, shall be provided as required. 40 Metal sheathing thickness shall be compatible with the area involved, but in no case less than 1.5 mm (#16) steel. 12-33 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 13. ACOUSTIC INSULTATION Acoustical treatment shall be provided, where required, to attenuate system- genera ted noise (airborne and transmitted) to level as specified in Section 1, Article 11. 14. SPECIAL TOOLS 5 Special tools shall be provided as follows: Per Ship Repair kit for testing and overhaul of thermostats and automatic control valves 1 15. SPARE PARTS 10 See Section 86 of this Specification. 12-34 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LEGEND FOR PLATES I, II Air Main Pneumatic Piping Thermostat-duct Panel mounted or inserted Room Thermostat Stop Cock Pneumatic Control Valve Positive Positioning Relay Thermometer (Panel Mounted) Thermometer with Separable Socket (Panel Mounted) Cutout Valve Check Valve Damper (Multi-Blade except AM) & Motor Pneumatic Motor N.O. Normally Open N.C. Normally Closed L.O. Locked Open 12-35 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION c Cooling H Heating R Reheater Coil P Preheater Coil Filter C.C. Cooling Coil CO. Change Over Valve D.A. Direct Acting R.A. Reverse Acting H.W. Hot Water T.S. Safety Thermostat A.M. Dual Duct Air Mixing Unit with Constant Volume Regulator M.T. Master Thermostat S.M.T. Sub-Master Thermostat PRES. Cont. Pressure Control T.A. Tempered Air Electric Heater NOTE. Electric or electronic controls having equivalent modulating and sequencing capability may be used in lieu of pneumatic type devices shown. 12-36 2 UJ > O o -'' 2 ui i/> - ►- t/> Z, < < O -J -I JI 0.O - o z O u < UI o i/> »- o ci uj c» U_ — > CO o — «t => <_> CJ Q. =e u_ >- o o CJ u_ UJ B5 35 — « 9— C3 cj — as UJ n — uj x cr C3 UJ UJ SB >- ►— CJ «X CJ <*- 2£ UJ <= o c= — — UJ CJ C3 UJ 0. »— CO v> «x 3C cr UJ UJ re _ i a. i»j «=> r* O- O -a o- o a 12 - 37 I/) >• — ifc (3 " : z w (/) - H> U) Z < < o -• -* ^ o. u - o z o u OB I X u kw-[v ^w-d-bt t < 2 O < _ oc 3= UJ CO UJ »— »— «c CO «s « «x -J a. ca UJ ^» as — I K- O _J «* «■• s se as 3; =» =a= «s CJ UJ » UJ se ac ►— ae a. CO CO O u_ CO u. UJ CO «<_> a. co — UJ — cs ce cj «=►— — — »— :, Steam pressure, kPa (psig) . . ( Pressure drop, kPa (psig). . . ( Design pressure, oil side, kPa (psig) ( , Cleanliness factor, % ( ) 30 Inserts accessible for cleaning. Heatable type. Duplex type. Mesh opening, mm (inch). . . . ( ) Capacity, nw/hr (gpm) ( ) 35 Max. pressure drop, kPa (psi . ( ) Duplex, cartridge, steam heated Capacity, m3/hr (gal/hr) . . . ( ) Steam pressure, kPa (psig) . . ( ) - micron particle separation . ( ) 50-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 56— FUEL OIL SYSTEM Mixing Tank (Heatable & Insulated) or Return Pipe One (1) Heavy Oil Settling Tank, Heatable & Insulated One (1) Heavy Oil Day Tank Heatable & Insulated One (1) Diesel Oil Purifier One (1) Diesel Oil Storage Tank Suction Strainer One (1) Diesel Oil Day Tanks Two (2) Fuel Oil Flow Meter One (1) Heavy Oil Viscometer System One (1) Description Total capacity _J j_ Fitted with heating coils high/low level alarms, level indicators Steam pressure, kPa (psig) . . Fitted with heating coils high/low level alarms, level indicators Steam pressure, kPa (psig) . Fitted with heating coils high/low level alarms, level indicators Steam pressure, kPa (psig) . ( ) ( ) ( ) Self cleaning type complete with suction and discharge pumps. Type - centrifugal Capacity, m 3 /hr (gal/hr) . . . ( ) Duplex type - mesh Capacity, nr/hr (gal/min). . . _J J_ Fitted with high/ low level alarms, level indicators, supply main engine and ships generator engines Flanged, with horizontal direct read- ing dial and remote reading dial, fitted upstream of mixing tank. Capacity, m-Vhr (gal/hr) . . . ( ) Reading m^ (gal) ( ) Flanged or buttweld, equipped with electric motor driven gear pump, capillary tube, thermometer, differ- ential pressure transmitter, control station and recorder. Viscosity Range sees Redwood #1 ( ) Output differential pressure mm (in) H2O _J )_ 10 15 20 25 30 35 40 50-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 57— LUBRICATING OIL SYSTEM Description Main Engine Lube Oil Purifier One (1) Main Engine Lube Oil Purifier Heater One (1) Main Engine L.O. Suction Strainers (as required) Main Engine L.O. Coolers Two (2) each sized for full capacity Self-cleaning, automatic control 5 Complete with suction and discharge pumps Type: Centrifugal Capacity, m 3 /hr (gal/hr) . . . ( ) Discharge pressure, kPa 10 (psig) ( ) Lube oil viscosity centistokes (SSU) at 38°C (100°F) ( ) Oil inlet, °C (°F) ( ) Shell and Tube or plate type 15 Capacity, m^/hr (gal/hr) ... ( Oil inlet, °C (°F) ^T Oil outlet, °C (°F) ~~T Steam kPa (psig) ( ) Cleanliness factor 80% 20 Material, shell Steel Material, steam heads Steel Tube sheets. Steel Tube material 90-10 Cu-Ni 25 Simplex Type Capacity, nvfyhr (gal /mi n). . . ( ) Screen openings ( ) Mesh Horizontal shell and straight tube type, single pass water side 30 Lube oil, m 3 /hr (gal /mi n). . . Oil inlet, °C (°F) __ Cleanliness Factor 85% Oil outlet, °C (°F) ( I Tube dia. and thickness. 19mm (3/4" )xl8BWG 35 Tube and tube sheet material . Aluminum Brass Shell and baffle material. . . Steel Head material Neoprene Capacity (each) (Kcal/h) . . . Coated Steel 50-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 57— LUBRICATING OIL SYSTEM Lube Oil Temp. Control Valves Two (2) Description Main Engine L.O. Discharge Strainer One (1) Main Engine L.O. Sump Tank One (1) Main Engine L.O. Storage Tank Cylinder Lubricating System One (1) Main Engine L.O. Settling Tank One (1) Daily Service Tank Cylinder Lubricating System One (1) Pressure Reduction Valve (For 2 pressure system, if installed) Auxiliary Engines L.O. Storage Tank One (1) Set at ^ °C ( ^°F) Main Engine Automatic Lube Oil Temperature Control Duplex micron full flow type Capacity, nvVhr (gal/min). . . ( ) Welded steel, located under each main engine, fitted with level indicators, heated (if desired) Capacity, m 3 (gallons) .... _J ]_ Welded steel fitted with level indicator, overflow, vent, drain Capacity, m 3 (gallons) .... _J ]_ Welded steel fitted with level indicator and heating coils Capacity, m 3 (gallons). . . . _J )_ Fitted with sight glass, low level alarm, venting, drainage Capacity, m 3 (gal) _[ ]_ Set at kPa (psi) ( ) Oil pressure reduction for the low pressure L.O. system Two compartment welded steel with level indicator, capacity, m 3 (gallons) ( ) Note: Aux. engine L.O. storage tanks may be deleted if Aux. engine L.O. same grade as main engine L.O. 10 15 20 25 30 50-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Description Section 58— SEA WATER SYSTEMS Sea Water Heater and Drain Cooler Horizontal shell and tube type (If provided) Steam pressure, kPa (psig) . . ( ) One (1) Sea water quantity, m^/hr (gal /mi n) ( ) Sea water inlet temp., °C (°F) ( ) Sea water outlet temp., °C(°F) ~ Drain temp. °C (°F) max. . . . Tube material 90-10 CU-Ni Min. tube dia., inches and thickness 19mm(3/4")xl8 BWG Cleanliness factor 85% Forepeak Ballast Eductor Capacity, m /hr (gal/min). . . ( One (1) Suction lift, m (ft) ( Discharge head, m (ft) .... ( ) Material Bronze Motivating, pressure, kPa (psi) ( ) Cargo Tank S.W. Eductor Capacity, m 3 /hr (gal/min). . . ( )_ One (1) Suction lift, m (ft) ( (If provided) Discharge head, m (ft) .... { Motivation, pressure, kPa (psi) ( ) Sea Water Filters Simplex type, self cleaning without Two (2) interrupting the cooling sea water supply - Capacity, m /hr (gal/hr) . . . _( \ 10 15 20 25 30 50-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 59--FRESH WATER SYSTEM Description Engine Fresh Water Cooling System - (Closed Type) Expansion Tank One (1) Heater One (1) Engine Fresh Water Cooler One (1) , or more if desired Maintains static pressure in the system, equipped with vent, drain and overflow connection, welded steel. ~ Capacity, m (gal) ( ) 10 Equipped with steam coil valve, vent Steam inlet °C (°F). . . Steam outlet °C (°F) . . relief T 15 Horizontal shell and tube type, fitted with automatic temperature control Capacity, Kcal/h ...... F.W. qty, m3/hr (gal/hr) . . F.W. temp in/out °C (°F) . . Sea water qty, m^/hr (gal/hr) Sea water temp in/out °C (°F) Tube dia and thickness . 20 T T 18BWG 25 Air Separator One (1) Automatic Temperature Control Valve, Jacket Water One (1) Fresh Water Generator One (1) Centrifugal type Capacity, m 3 /hr (gal/hr) Pressure drop kPa (psi). ( ) Controlling engine cooling water 30 outlet temperature Set at °C ( °F) Set to take 30% or more as recommended by engine manufacturer of the heat transferred from main engine cooling 35 water, installed in parallel with engine fresh water cooler Capacity, Kcal/hr (BTU/hr) . . ( J_ 50-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 59--FRESH WATER SYSTEM Description Piston Fresh Water Cooling System (If installed) (Closed Type) Fresh Water Drain Tank One (1) Fresh Water Cooler One (1) Fitting with low level alarm and heating coil with 0.25 m 2 (2.69 ft 2 ) heating surface area per m3 (264 gals) of water in the tank Capacity, m 3 (gal) ( ) 10 Horizontal shell and tube type, fitted with automatic temperature control Capacity, Kcal/hr (BTU/hr) . F.W. qty, m 3 /hr (gal/hr) . . F.W. temp in/out °C (°F) . . Sea water qty, m 3 /hr (gal/hr) Sea water temp in/out °C (°F) Tube dia and thickness . . . 15 ) 20 lgifimTWh 18BWG Automatic Temperature Control Valve One (1) Water/Oil One (1) Separator Regulating main engine inlet water temperature Set at °C ( °F) Centrifugal type "Serep" or equivalent, electrically driven Fuel Valve Fresh Water Cooling System (If installed) (Closed Type) Expansion Tank One (1) Temperature Control Valve One (1) Fitted with vent, drain, low level alarm, sight glass, heating coil to preheat the water to a minimum of 70°C (158°F) Capacity, m 3 (gal) ( To regulate the water temperature in the expansion tank at 80-85°C (176-185°F) 25 30 35 50-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 59— FRESH WATER SYSTEM Fuel Valve (Injector) Cooler One (1 ) if required Storage Type Hot Water Heater (Domestic Service) One (1) Fresh Water Hydropneumatic Tank One (1) Description Horizontal shell and straight tube type 3 F.W. flow, m /hr (gal/min) . . _J[ F.W. inlet, °C (°F) F.W. outlet, °C (°F) ( ) Tube dia. and thickness. . 19mm(3/4")x 18BWG 10 Submerged Type (coil) type . . _^_^ Storage capacity, m3 (gals). . ( ) Capacity output m^/hr (gal/hr) ( ) 15 Water inlet, °C (°F) J. [ Water outlet, °C (°F) ) Steam pressure, kPa (psig) . . ( ) Design pressure, shell, kPa (psig) ( ) 20 Design pressure, coil, kPa (psig) ( ) Material, tank, shell and Steel, head resin coated Material, heating coils. . . . Alum.- 25 bronze Material, tube sheet Bronze Material, steam inlet head. . Bronze F.W. pump to operate under pressure switch control . Compression tank of welded steel, galvanized construction. Capacity, m3 (gallons) .... ( ) Design pressure, kPa (psig). . ( ) 30 50-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 60— CONDENSATE SYSTEM Description Drain and Inspection Tank with Vent Condenser One (1) Fabricated steel fitted with sight glass oily water indicator and filter sections Capacity, m 3 (gals) _J )_ Condenser Section: Two-pass straight tube horizontal unit vent to atmosphere Condensing capacity kg/hr (Ibs./hr) ( Sea water, °C (°F) ...... ( Max. water velocity in tubes m/sec (ft/sec) 1.5 (5.0) Tube dia. and thickness. . . 19mm(3/4")x 2 2 18BWG Min. surfaces m (ft ) ( ) 10 15 50-16 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Description Section 61 -STEAM GENERATING PLANT Waste Heat (Exhaust Gas) Boiler Fire tube or water tube type output 5 One (1) controlled by water level or gas bypass to receive exhaust gases from the main engine. Output capacity at kPa ( psig) kg/hr (Ibs/hr) ( ) 10 Boiler shall act as spark arrester and silencer on the engine. Auxiliary (Package) Boiler Oil fired, package type, fully One (1) or more as required automatic complete with forced draft fan, feed pump, fuel oil pumps and 15 controls, capable of burning diesel oil and heavy fuel oil. Total evaporation at kPa(psig) kg/hr (Ibs/hr) ( ) Unit shall start automatically when 20 heat recovery (waste heat) boiler drops below kPa(psig) automizing oil burner with automatic combustion controls and flame safeguard equip- ment providing for unattended 25 operation. 50-17 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 64--ENGINE ROOM VENTILATION Description Supply Fans Three (3) or more as required Exhaust Fans Two (2) Exhaust Fan (Purifier Room) One (1) Type: Axial, single speed, motor driven Capacity m 3 /hr (CFM) ( ) Static head, kPa (in water). . ( ) Motor kW(HP) ( ) Motor speed RPM Type: Axial, single speed, motor driven Capacity m3/hr (CFM) ( ) Static head, kPa (in water). . ( ) Motor kW(HP) ( ) Motor speed RPM Type: Centrifugal, single speed, motor driven Capacity m3/hr (CFM) ( ) Static head, kPa (in water). . ( Motor kW(HP) ~~T~ Motor speed RPM 10 15 50-18 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Description Section 64— ENGINE ROOM VENTILATION Exhaust Fans Type: Axial flow, totally enclosed (Purifier Room & Paint Locker) motor Two (2) Capacity, nT/hr (cfm) ( ) Static pressure, kPa (in water) ( Motor kW (kp) ( ) 10 Motor speed, rpm ] { Fan speed, rpm ( Section 65— AIR CONDITIONING MACHINERY Air Conditioning Compressors Same type as Stores Compressors, Two (2) Section 66, except as follows: 15 Motor kW (hp), approx. min . . _J )_ Capacity at 2°C (+35°F) suction temp.; tons Air Conditioning Condensers Same type as Stores Condensers, Two (2) Section 66, except as follows: 20 Capacity, tons __,__,_ Condensing temp., °C (°F). . . ( ) Cooling water inlet temp., °C (°F) ( ) Air Conditioning Receivers Same data as Stores Receivers, 25 Two (2) Section 66 Section 66— SHIPS SERVICE REFRIGERATION Refrigerated Stores Reciprocating, motor driven with Compressors capacity control and automatic Two (2) unloading Condensing temp., °C (°F). . . _J )_ Capacity at -29°C (-20°F) suction temp, tons, min. . . . __^_^ Motor, kW (hp), approx ( ) Motor, rpm, approx 50-19 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 66— SHIPS SERVICE REFRIGERATION Description Refrigerated Stores Condensers Two (2) Refrigerated Stores Receivers Section 67— CARGO REFRIGERATION Shell and straight tube, bare 5 or finned Condensing temp. °C (°F) . . . ( ) Sea water inlet temp. °C (°F). ( ) Tubes, min. dia & 16mm(5/8") thickness 0D-#18 BWG 10 Tube material 90-10 Cu-Ni Shell material Steel Head and tube sheet material . Bronze or Cu-Ni 15 Water velocity, m/sec (ft/sec), max 1.8(6.0) Pressure drop, max. kPa (psi) ( ) Fouling factor 0.0005 20 Cooling water per ton of refrigeration, litres per minute (gpm) at -4°C (+25°F) suction temp., max _J j_ Fabricated steel type. 25 Capacity, pump-down, % . . . . Refrigerated Cargo Compressors Refrigerated Cargo Condensers Same type as Stores Compressor (Section 66) except as follows: Capacity at -26°C (-15°F) suction temp., J/hr (Btu/hr) min . . . ( Capacity at 2°C (+35°F) suction temp., J/hr (Btu/hr) approx. . ( Motor kW (hp) min ( Same type as Stores Condenser (Section 66) except as follows: Capacity at 2°C (+35°F) suction temp., equal to compressor capacity Cooling water flow at 2°C (+35°F) 3 . . Suction temp., max. 1.27 m /J (0.025) gal/Btu 30 35 40 50-20 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 67— CARGO REFRIGERATION Refrigerated Cargo Receivers Section 68— LIQUID CARGO SYSTEMS Cargo Tank Cleaning Heater (Butterworth) One (1 ) Cargo Tank Cleaning Heater Drain Cooler One (1) Description Same data as Stores Receiver, Section 66. Horizontal shell and tube type Steam pressure, kPa (psi). . . _J ]_ Steam flow, approx. kg/hr (Ibs./hr) _J I 10 Sea water quantity, m3/hr (gpm) ( ) Sea water inlet temp. °C (°F). ( ) Sea water outlet temp. °C(°F). ( ) Tube material 90-10 15 Cu-Ni Min. tube dia., mm (inches) and bhickness, BWG . . 19 (3/4) - #16 Cleanliness factor, % 75 Water velocity tubes, max., 20 m/sec (ft/sec) 1.4 (4.5) Design pressure shell, kPa (psi) ( ) Design pressure tubes, kPa (psi) ( ) 25 Shell material Tube sheet material 90-10 Cu-Ni Head material 90-10 Cu-Ni 30 Pressure drop, max., kPa (psi) 34.5 (5) Horizontal shell and tube type Condensate inlet temp. °C (°F) ( ) Condensate outlet temp. °C(°F) ( ) 35 Sea water inlet temp. °C (°F) ( ) Sea water outlet temp. °C (°F) ( ) Other data same as for Butterworth Heater. Drains from cooler regulated by 40 liquid level controller. 50-21 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 68— LIQUID CARGO SYSTEMS Cargo Coil Hot Water Heater One (1) Description Horizontal shell and tube type Steam pressure, kPa (psi). . Water quantity, m3/hr (gpm). Water inlet temp. °C (°F). . Water outlet temp. °C (°F) . Tube material ( ) alum. 10 brass Tube sheet material naval brass Water velocity, max., m/sec. (ft/sec) 1.37 (4.5) 15 Min. tube dia. , and thickness, BWG . 16mm (5/8") OD - #18 Design pressure shell kPa (psi) ( ) Design pressure tubes, kPa 20 (psi) ( ) Head material cast iron Pressure drop max. kPa (psi) . 34.5 (5) Section 70-SEWAGE DISPOSAL SYSTEM Sewage Holding Tanks Two (2) 25 Welded steel construction, sand blasted and coal tar epoxy lined. Each tank fitted with water jets, high-level alarms, floatless control for sewage pumps, tank bottom sloped 30 toward pump suction. Capacity, m tons (tons). . . . _J ) or Sewage Treatment Plant One (1) Section 71— TANK LEVEL INDICATORS Fuel Oil Tanks Fresh Water Tanks Tube Oil Sump Tank(s) Diesel Oil Service Tanks Liquid Cargo Tanks (If provided) lean Ballast Tanks Sewage Holding Tanks or Capacity m3/day (gal/day). LA Number and type of Tank Level Indicators to be provided in accordance with Regulatory Body requirements and guidelines established in Section 71 for particular vessel design. 35 40 50-22 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 72— COMPRESSED AIR SYSTEM S.S. Diesel Starting Compressors Two (2) Ship Service Compressor One (1) Control Air Compressor One (1) Diesel Engine Starting Air Receivers Two (2) or more Ship's Service Air Receiver One (1) Description Two stage, motor driven (direct 5 or V belt) fresh water or air cooled, equipped with oil /water separator np/hr (CFM) free air ( ) Discharge pressure kPa (psi) . ( ~T Motor KW (HP) ( J 10 Motor RPM _^_^ Start Limit kPa (psi) ~ ( J~ Stop Limit kPa (psi) ( ) Similar to above 15 Compressors to operate under pressure switch control . Motor-driven, direct or "V" belt drive, centrif. with water seal. M 3 /hr (cfm) free air ( ) 20 Discharge pressure, kPa (psi) ( ) Motor, kW (hp) ) Motor, rpm ( ) Start limit, kPa (psi) . . . . j ) 25 Stop limit, kPa (psi) ( ) Compressor to operate under pressure switch control . Fabricated steel galvanized, equipped with drain safety valve and 30 pressure gage Capacity, m3 (cu.ft) each. . . ( ) Design pressure kPa (psi). . . ( ) Fabricated steel , galvanized Capacity, m 3 (cu. ft) _J )_ 35 Design pressure, kPa (psia) ( ) NOTE : Approximate time for compressor operation to pump tank between pressure limits is one minute 40 with no use of air. 50-23 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LIST OF MACHINERY Specification Section, Item and Number Required Section 72— COMPRESSED AIR SYSTEM Control Air Receiver One (1) Description Fabricated steel, galvanized. Capacity, m^ (cu. ft). . . . Design pressure, kPa (psia) ( ) LA NOTE Automatic Starting Master Valve (Supplied with main engine) Non-Return Valve Starting Valves on Cylinder Cover Same as number of cylinders Starting Air Distributor One (1) Control Air Bottle One (1) Control Air Main Blocking Valve Cylinder Relief Valves Control Air Dehydrator One (1) Section 73--PUMPS Approximate time for compressor operation to pump tank between pressure limits is one minute with normal use of air. Tank to be fitted with a low pressure alarm. Opens and closes the passage of main starting air to the engine. Spring loaded, located between engine and the automatic starting master valve. Prevents back blow of hot gases from the cylinder into the starting air system. Opened and closed by air from the starting air distributor Controls pilot air to actuate starting valves Fabricated steel, galvanized Capacity, m^ (cu.ft) ( Design pressure kPa (psia) . . FT Fitted on each cylinder as a pro- tection against excessive combusion pressures Self-contained refrigeration unit, discharge air temperature 2°C (35°F) Capacity, sM 3 /min. (scfm). . . ( ) See Pump Table Following. 10 15 20 25 30 35 50-24 oo Q cc a. 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Operating press, max, min. Tyfon Air Section 76— AUXILIARY DIESEL ENGINES Ship Generator Diesel Engines Two (2) Emergency Diesel Generator One (1) Main Cargo Pump Diesels (If provided) Section 78— MISCELLANEOUS TANKS Clean Waste Locker One 0) Oily Waste Can One (1) Kerosene Tank Single-acting, non-reversing, solid injection, turbo-charged, intercooled and/or aftercooled type fitted with jacket water cooler, lube oil cooler, intake filter/silencer and exhaust silencer, all attached pumps, filters and controls, capable of burning #2 Diesel oil and remotely controlled from main console. Continuous kW (hp) rating. . . ( ) rpm. . Type starting Air Radiator cooled, complete with pumps and coolers. Two or four cycle full diesel type. Continuous rating, kW (hp) . . _J )_ rpm. Type starting Hydraulic Single-acting, non-reversing, solid injection, full diesel type complete with all attached pumps, coolers, filters, silencers, and controls. Drive cargo pumps through engine room bulkhead. Continuous kW (hp), approx . . ( rpm Starting Air Size Metric Size . . . . Size . . , . Size . . . . 50-28 Size English . ( ) . ( ) • ( ) 10 15 20 25 30 35 40 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Specification Section Item and Number Required Description Section 80— ENGINEERS' AND ELECTRICIANS' WORKSHOPS, STORES AND REPAIR EQUIPMENT Service Workbenches Engineers' workshop (As required) Electricians' workshop Injector workbench Purifier Battery Welding Lathe Screw cutting geared heat type Swing (diameter) over bed, mm, (in). . Length between centers, mm, (in) . . . Motor, kW (hp) Drill Press Vertical, back geared type Size drill, mm (in) Traverse of table on column, mm (in) . Spindle travel, mm (in) Motor, kW (hp) Grinder Wet and dry type Size wheel, mm (in) Motor, kW (hp) . . Power Hacksaw Motor driven, automatic shut off type (If required) Size, mm (in) Stroke, mm (in) Motor, kW (hp) Electric Machinery Space portable electric hoist Hoist Motor, kW (hp) Storerooms Provided as shown on Contract Plan, and Storage Area (As required) Size Metric Size English ( ) I T ( ) ( ) 1 T ( ) 10 15 20 25 30 50-29 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Specification Section Item and Number Required Section 80— ENGINEERS' AND ELECTRICIANS' WORKSHOPS, STORES AND REPAIR EQUIPMENT Description Lifting Gear (As Required) Electric Welding Machine (If required) Service Provided with suitable gear for safe handling of machinery and equipment. Chain hoists Capacity, tonnes (tons) ( 10 Electric manual shielded arc welding unit, stationary or portable, single or dual control, line resistor, DC generator, transformer or rectifier type. Machine to be capable of adapting ship's service power to a lower voltage suitable for welding. Unit to be provided with adequate safety features and accessories for the intended service. Capacity, to amperes at to volts or 20 Gas Welding Approved apparatus provided with adequate accessories, Unit controls and safety features for the intended service. (If required) Section 81— DECK MACHINERY Steering Gear One (1) Two or four cylinder, single or double ram, electric hydraulic Rapson slide type with two power units. See Section 81 . Max. torque ahead N.m (in. lbs) ( Max. torque astern N.m (in. lbs) ( Motor, kW (hp) ( Number of cylinders 2 or 25 30 50-30 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Specification Section Item and Number Required Section 81 --DECK MACHINERY Anchor Windlass (As required) Life Boat Winch (As required) Accommodation Ladder Winch (As required) Description Anchor weight, kg (lbs). . , Chain size, mm (in) Anchor hoisting speed m/sec (ft/mi n) , Warping head size , Hawser size & material mm ( i n ) , Warping speed m/sec (ft/min) , Line pull N (lbs) , Motor kW (hp) Load . . Hoisting (ft/min) . . Motor kW (hp) . kg (lbs), speed m/sec Load . . . kg (lbs). . . Line speed m/sec (ft/min) Motor kW (hp) ( ) ( ) 15 20 Number and capacities of Cargo, Stores Handling, Topping, Mooring, and Constant Tension Winches shall be developed to suit the vessel. LOADS should be written as Kg (lbs), speeds m/sec (ft/min), Pulls N (lbs) and Motors kW (hp). Section 85— INSTRUMENTS AND MISCELLANEOUS GAGEBOARDS— MECHANICAL 25 Gageboards (As required) Mechanical Instruments Telephone Hoods Log Desks Steel or aluminum construction, with all gages, instruments and controls mounted as nearly flush as possible. As specified in Section 85 and the various sections as required for proper operation. Emergency generator room. Engine room control stations, emergency generator room and evaporator or refrigeration station. 30 35 50-31 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Specification Section Item and Number Required Section 88— GENERATOR Ships Diesel Generators (As required) Emergency Diesel Generator One (1) Section 89— SWITCHBOARDS Main Switchboard One (1) Emergency Switchboard One (1) Group Control Centers (As required) Description A-C generator with integral brushless 5 exciter direct connected to full diesel type engine mounted on common bedplate. Generator Capacity, kW (Cont. rated) 10 @0.8 pf Capacity, kVA Volts Three phase, 60 Hertz Direct connected diesel driven A-C 15 generator with integral brushless exciter mounted on common bedplate with characteristics as follows: Generator Capacity, Cont. rated kW 20 @0.8 pf Capacity, kVa Volts Three phase, 60 Hertz 25 Dead front type. Dead front type. Dead front type. 30 50-32 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 51 MAIN PROPULSION ENGINE 1. GENERAL DESCRIPTION The main propulsion engine shall be a single acting, two stroke, crosshead, turbocharged, directly reversible low speed marine Diesel 5 designed for normal operation with purified heavy fuel. The engine shall be capable of being started and maneuvered on heavy fuel. Diesel fuel may be used for starting and low power operation if desired. Engine shall be directly connected to line shafting via solid coupling. 10 The main Diesel engine shall be designed to withstand the external forces and deflections imposed on its supporting structure by the deflec- tions and stresses of the ship. The engine shall be supported in such a manner as to allow for such deflections without imposing external forces and misalignments on the components beyond their design tolerances 15 and without producing excessive vibrations or objectionable noise. The main propulsion machinery shall be capable of continuous opera- tion at the ABS rated power corresponding to the specified RPM burning heavy fuel . The engine shall be provided with all the necessary instruments and 20 controls for stopping, starting, reversing and maneuvering from the engine room control console; and locally at the engine; and from the pilot house. 2. TURBOCHARGING SYSTEM Each main turbocharging system shall consist of one or more single 25 stage exhaust gas turbines, each driving a compressor, with the turbine and compressor mounted on a common shaft. The turbochargers shall draw air from the engine room or from an intake filter room and discharge to the main engine intake manifolds. After coolers shall be fitted to the turbochargers. Each turbocharger shall be fitted with silencing 30 equipment to minimize noise levels to generally acceptable standards. An air cooler shall be provided for the air discharge from the blower and fitted to the side of the pressure charge air receiver on the engine. Cooler shall have water ends of gunmetal and aluminum brass tubes or equivalent. 35 Depending on the type of engine installed, a rotor locking device shall be provided to enable the turbine rotor to be held stationary in the event of the blower being out of action. In this condition, the engine shall continue to operate with air pressurized from the under piston compartments or from electrically driven auxiliary blowers. 40 51-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The turbine exhaust gas outlet casing and, if necessary, the inlet casing shall be circulated by fresh water, taken from the main engine jacket water circulating outlet. The air cooler shall be circulated by sea water taken from the sea water circulating main. One or more electrically driven auxiliary blowers shall be fitted 5 on the side of the scavenge air receiver for use when maneuvering and running at low load. Starting and stopping of the auxiliary blower shall be automatically controlled by position of the fuel lever or as a function of scavenge air pressure. 10 The entire turbocharging system of each engine, including intak and exhaust manifolds, port arrangement, specification of injection system and combustion chamber design, shall be designed for optimum performance. 3. BEDPLATE & BEARINGS The engine bedplate shall consist of fabricated longitudinal girders 15 and rigid crossmembers with rigid center pieces of cast or forged steel which carry the main bearings and serve as anchors for the tie rods. The oil sump shall be integral with the bedplate and drain to the oil tanks in the ship's inner bottom. The main bearings shall be cast with white metal or consist of 20 interchangeable shell halves lined with white metal. Each bearing cap shall be held down by bolts assembled by hydraulic jack tighteners. Lifting aids shall be fitted to the engine frame for removal of the bearing caps from the crankcase. An oil mist detector, of approved type, shall be provided and 25 installed in the engine. A local increase of oil mist generated by a "hot spot" in any crankchamber of the thrust bearing chamber shall cause a visual and audible warning. The thrust bearings shall be integral with or bolted to the bedplate and shall comprise of self-aligning and self-equalizing white metal 30 lined tilting segments. Journal bearings shall support the thrust shaft and engine flywheel. The turning gear shall be mounted on the bedplate and shall drive the flywheel. A safety interlock shall be provided to prevent the engine from being started when the turning gear is engaged. 4. COLUMNS AND/OR GIRDERS 35 Columns of the fabricated A-frame, double wall design or welded frame boxes highly deformation-resistant shall provide a rigid structure between the bedplate and the cylinder block. Large doors shall provide access to the crankcase. Explosion-relief valves shall be provided in the side wall in accordance with regulatory requirements. 40 51-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The interior surfaces of the crankcase shall be coated with a corrosion-inhibiting oil or oil resistant paint as approved by the engine manufacturer. 5. CYLINDERS Cylinder jackets shall be of fine lamellar (close grained) cast iron. 5 Individual cylinder jackets shall be bolted together to form a rigid cylinder block. The cylinder block, columns and/or box girders and bedplate shall be held in compression by tie rods, which shall transmit combusion and inertia forces to the underside of the bedplate. Depending on the type of engine, the cylinder jackets shall be cooled 10 by fresh water. The bottom of each jacket shall form a diaphragm between the under-side of the cylinder and the crankcase in order to prevent ontamination of the crankcase oil by combustion residues. Insulation of the telescopic piston cooling pipes shall be separate from the crankcase. 6. PISTON ROD STUFFING BOXES 15 Stuffing boxes shall prevent leakage of air and combustion gases rom the cylinder into the crankcase and shall prevent leakage of splash oil from the crankcase into the main cylinder. 7. PISTON COOLING PIPES STUFFING BOXES (if required) These glands seal against the scavenge air pressure, dirt and water; 20 or, if telescopic pipes are separate from crankcase, against water only. Seals shall be visible while the engine is running and shall be capable of being dismantled without removing the piston. 8. CYLINDER LINERS AND COVERS Cylinder liners shall be in one piece of special fine lamellar cast 25 iron. The top collar of the cylinder liners shall be held down onto the cylinder jackets by the cylinder covers so that the liners are free to expand downwards. Liners shall be cooled as required. Cylinder covers shall be forged in one piece and shall be bore or port cooled. Fuel, starting, safety and indicator valves shall be carried 30 by the cylinder covers. Cylinder covers shall be bolted directly to the cylinder jackets. 9. CRANKSHAFT The crankshaft shall be of the builtup type, of normalized steel. The forged thrust shaft, carrying the integral thrust collar and flywheel 35 fixing flange shall be shrunk or bolted to the crankshaft. 51-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 10. CONNECTING RODS Conecting rods shall be forged normalized steel. Bottom-end bearing shells shall be lined with white metal or three-metal bearings ready for installation, exchangeable without remachining. Shims shall be provided between the bottom and bearings and the connecting rods to provide 5 limited adjustment of the compression ration during erection. Top and lower half bearings, one or two per connecting rod, shall be provided with thin tin aluminum or white metal lined shells with a flash overlay. Top and bearing caps shall be lined with white metal. The connecting rods shall be bored to supply lubricating oil to the lower end bearings 10 from the lubricating oil system serving the crossheads. All connecting rod bolts shall be arranged for hydraulic tightening. 11. CROSSHEAD The forged steel crosshead pins shall be symmetrical and reversible, if necessary. Piston rods shall be connected to crosshead pins by single, 15 hydraulically tightened nuts or by hydraulically tightened bolts. Cast iron and/or cast steel, white metal lined, crosshead bearing slippers shall run on cast iron double guided faces. Crosshead bearing shells shall be interchangeable. 12. PISTON ASSEMBLY 20 Each piston assembly shall consist of a water cooled, cast steel or steel piston crown, a cast iron skirt and a forged steel piston rod. Other suitable arrangements with proven service are acceptable. 13. CAMSHAFT The forged steel camshaft shall be driven by the crankshaft either 25 through a gear train or chain. Cams shall actuate fuel pumps and the starting air distributor and exhaust valves if fitted. An oil operated rotary reversing servo motor or camshaft shifting caused by a pneumatic-hydraulic shifting unit shall change from ahead to asterm cam timing. 14. FLYWHEEL AND JACKING GEAR 30 A flywheel incorporating a jacking worm wheel shall be provided with each main engine. Each jacking gear shall have a manually operated engaging and disengagin pinion, driven by a gearing system and a reversible electric motor or barring device. Hand operating gear and lever and/or 35 crank shall be incorporated for turning the crankshaft through small angles. The flywheel or engine crankshaft flange shall be provided with an indexing scale to permit checking crank positions. A pneumatically operated interlock shall be incorporated in the turning gear to ensure that the main engine cannot be started when the pinion of the turning 40 gear is in mesh. 51-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 15. STARTING AND REVERSING The engine shall be started, stopped and reversed by compressed air at a maximum pressure of about 2929 kPa (425 psi). One starting air valve shall be fitted to each cylinder head. The starting air valve operating piston shall assure precise operation of the valve and provide a strong 5 damping effect against hammering when the valve closes. The piston shall be so designed as to effect good braking of the engine and to prevent the cylinder pressure during the upward stroke of the main piston from forc- ing the starting valve to close prematurely. The engine shall be started by first selecting the direction of rotation with the reversing lever. 10 The speed setting lever is to be placed in the low fuel position suffic- ient to maintain constant stable rotation of the engine. When the starting button or lever is actuated, appropriate pneumatic valves and/or a pneumatic/hydraulic shifting unit are to be actuated permitting lubricating oil under pressure to actuate the camshaft servo- 15 motor and place the fuel pump drive cams or the camshaft with the cams in the correct timing position for fuel injection. The pilot starting valve cam is also to be driven from the camshaft. The cam actuates the air pilot valves associated with a starting air valve on each cylinder cover and pilot air is then supplied to the piston of the starting valve 20 causing the valve to open injecting high pressure air into the cylinder. The air will then act against and accelerate the pistons, causing the engine to fire on fuel. The engine will then run at a speed corresponding to the fuel position of the speed setting lever. 25 The system described in this subparagraph is one of several acceptable alternatives. Others will be considered. 16. SCAVENGING AND SUPERCHARGING The system described herein is one of several acceptable alterna- tives. Others will be considered. 30 The engine shall be of the loop scavenged type with no exhaust valves. Turbocharger(s) shall supply charging air via seawater cooled air coolers to the constant pressure supercharging system receiver. Turbochargers shall have axial flow exhaust gas turbines and centrifugal blowers. Turbochargers shall be provided with individual motor driven 35 or integral lubricating oil pumps or connected to the engine oil circuit. The exhaust gas inlets (if necessary) and turbine casings shall be water cooled. Provision shall be made for cleaning of turbochargers and air coolers. During the compression stroke, scavenging air shall be supplied to 40 the space beneath the piston by non-return valves. This air shall be compressed by the downward motion of the piston during the power stroke 51-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION and forced through a second set of non-return valves into scavenging chambers. This charge of air shall begin scavenging the cylinder when the scavenging ports are uncovered. After the pressure of initial charge of air reaches the supercharging receiver pressure, non-return valves shall reopen and air from the receiver shall complete scavenging. At low 5 ngine loads, when the exhaust driven turbochargers are ineffective, air compressed under the pistons during the power stroke shall be adequate to scavenge the cylinders. In order to improve low load operation, an electric motor driven scavenging fan shall be provided. As an alternative, in the load range below approximately 50% MCR, 10 the turbocharger(s) shall be supported by an electrically driven blower cutting in and out automatically depending on the scavenge air pressure. The blowers with a power requirement of approx. 0.8% of engine output shall be installed in series before the turbocharger compressor. The system described in this paragraph is one of several acceptable 15 alternatives. Others will be considered. 17. EXHAUST GAS SYSTEM The exhaust gas system shall extend from gas turbine outlet flange to atmosphere. The system shall consist of exhaust pipes, expansion bellows, a waste heat boiler, (acting as silencer) and a spark arrestor. 20 If no waste heat boiler is fitted, a separate silencer or a silencer combined with the spark arrestor shall be fitted. The exhaust pipes from the cylinder exhaust outlets shall be connected with the constant pressure exhaust manifold situated above the scavenge air receiver. Branch shall be arranged on top or in front 25 of the exhaust manifold to deliver exhaust gas to the turbo-blower entry. Turbocharger shall be mounted above the exhaust manifold or on the engine front sides. Pryrometers shall be fitted to each cylinder exhaust. The exhaust outlet from the blower shall be connected by suitable exhaust pipes to exhaust gas silencer/boiler. Exhaust pipe lagging shall consist 30 of high temperature resisting slabs embedded into high temperature resisting plastic composition and secured with wire binding or with insulation equivalent in effect and design. Asbestos in any form is prohibited. The lagging shall be supercoated with a layer of composition reinforced with 1/2 mesh galvanized wire netting and covered with 35 galvanized steel sheets. Expansion pieces shall be covered with cloth mattresses 2 inch thick with high temperature resisting composition. The exhaust gas from each auxiliary Diesel engine shall be led separately to the atmosphere through a combined spark arrestor and silencer. 40 18. UPTAKES The various uptakes shall lead from the silencer or waste heat boiler to the top of the stack. These uptakes shall have an 8 mm (1/4 in) 51-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION wall and shall be supported by the ship's structure independently of the waste heat boiler and silencers. The uptakes shall be led through expansion collars in the top of the stack. 19. FUEL SYSTEM The engines shall be provided with motor driven booster pumps for 5 supplying fuel oil to the fuel injection pumps. The main engine fuel oil control panel shall be capable of auto- matically controlling selection and temperature of fuel oil being delivered to the fuel injection pumps. The engines shall be equipped with necessary pumps, filters, tanks and other fuel conditioning equip- 10 ment as deemed necessary to deliver fuel oil to the engine injectors in proper condition. 20 LUBRICATING SYSTEM Each engine shall be provided with a forced feed pressure type lubricating oil system by means of a separate motor driven pressure pump. 15 The oil supply shall consist of two independent lubricating systems: (a) Combined low pressure and high pressure oil system for bearings and control system, or a single system depending on the engine, (b) Cylinder lubricating system. All moving parts of the engines shall be lubricated from their 20 respective central lubricating oil system. The main bearings, thrust bearing, camshaft drive wheels, camshaft and fuel pumps shall be fed from the low pressure lube oil system. The crosshead and bottom end connecting rod bearings shall be fed from the high pressure oil system or the crosshead bearing from the high 25 pressure force-fed oiler actuated by connecting rod movement. Each engine shall be equipped with an independent shell tube type lubricating oil cooler. 21. COOLING SYSTEM Each engine shall be equipped with a fresh water cooling system for 30 the various components as required. Each system shall be complete with motor driven pump, shell tube type cooler, thermostatic valve and head tank as required. 51-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Raw water for cooling engine jacket water and cooling water coolers shall be circulated by means of a motor driven pump taking suction from main injection and discharging through its respective cooler. Provision shall be made for testing, treating and controlling the chemistry of the fresh water system to inhibit corrosion. 5 22. AIR SYSTEMS The following air systems shall be provided: Scavenging air (combusion) Compressed air supply (for engine starting, pneumatic remote control and for general service). 10 Scavenging Air System The scavenging air needed for combustion shall be delivered by the turbochargers mounted on the engine. The turbochargers shall draw the fresh air directly from the engine room or via ducting from a screened room on deck. The blower air inlets 15 shall be equipped with combined silencers and filters and/or an intake filter with shifting unit installed before it, to carry the intake air only over the auxiliary blower or, additionally, from the engine room attached to the blower housings. Compressed Air Supply System 20 The air supply system shall be a compressed air supply system with the pneumatic engine control consisting of the following: Air compressors and air receivers shall each be provided with a water drain, safety valve and pressure gauge. An automatic starting master valve shall serve to open and 25 close the passage of main starting air to the engine. The starting air distributor shall control the pilot air to actuate the starting valves during starting and engine braking. 23. MISCELLANEOUS REQUIREMENTS An overspeed trip mechanism of the manual reset type, entirely 30 independent of the regulating governor shall be provided. Machinery requiring cover removal or bolted access shall be installed in such a manner as to have free access for tools and removable section clearance. 51-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The power plant performance characteristics data shall be prepared in accordance with the latest marine low speed Diesel power performance practices as published in Technical Bulletins by the Society of Naval Architects and Marine Engineers. 24. SPECIAL TOOLS 5 One set of tools for use solely for engine maintenance shall be provided and stowed aboard ship. All special tools including torque and impact wrenches of appropriate sizes, all special tools as required by the design of the engine and as recommended by the engine manufacturer shall be provided. 10 25. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 51-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 53 MAIN SHAFTING, BEARINGS AND PROPELLER 1. SHAFTING (a) General The approved arrangement of shafting and bearings should be 5 such as to be free of all serious torsional, flexural and longitudinal vibrations at all speeds within the operating range. The stern tube bearing and seals should be furnished by the same vendor whenever possible. Outboard sections of shafting exposed to sea water shall be 10 suitably covered with either synthetic rubber conforming to Mil Spec. MIL-R-15058 or with a fiberglass protection conforming to Mil Spec. MIL-R-23461. (b) Line Shafting The line shafting shall be of solid forged steel, ABS Grade 15 2. The aft section of line shafting shall be of adequate length to provide for inboard tail shaft removal with only this section of shafting dismantled. Hollow shafting and higher strength materials are subject to specific approval. Shafting shall be machined to a surface roughness not exceeding 20 3175 RMS micromillimeters (125 RMS microinches) except for journals in way of bearings and stuffing boxes which shall be 6.35 mm (1/4 in) in excess of the required shaft diameter and polished to a rougnhess not exceeding 810 RMS micromillimeters (32 RMS microinches). For trial purposes, one section of line shafting for one whip 25 or a contract only, preferably the first, shall be machined for instal- lation of a torsionmeter. The shaft shall be calibrated when as specified in Section 101. Ships provided with a horsepower meter may have one section of line shafting machined for its installation. This may be in addition to the machining for a torsionmeter. 30 (c) Tailshaft The tailshaft shall be of solid forged steel, ABS Grade 2, and where controllable pitch propeller control is specified, the tailshaft shall be bored for controllable pitch control and machined for the type coupling provided, such as the friction joint type sleeved coupling. 35 The minimum diameter shall be not less than that required by ABS plus 6.35 mm (1/4 in). Shaft surface shall be machined smooth with surface roughness not to exceed 3175 RMS micromillimeters (125 RMS microinches), except at taper and keyways where the surface roughness shall not exceed 1600 RMS micromillimeters (63 RMS microinches). The shaft in way of the 40 53-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION bearings shall be machined and polished to suit the requirements of the bearing manufacturer. The after end of the tail shaft shall be accurately machined to a taper gage to fit the proper bore (usually 1" on diameter per foot length) and the end of the shaft shall be right hand threaded (right hand 5 fixed pitch propeller) to suit a Pilgrim type nut with a locking device; or the normally threaded section of the tail shaft may be omitted, and a hydraulically operated securing collar installed. Prior to finish machining, the propeller shaft shall be cold rolled for a length of one shaft diameter but not less than 455 mm (18 10 in) forward of the start of the taper and for one third of the length of the shaft taper aft of the forward end of the taper. Subsequent to cold rolling, the removal of material in way of the cold rolled portion should be a minimum and shall not exceed 0.13 mm (0.005 in) on the radius. 15 Suitable means shall be provided for the removal and reloca- tion of the aft section of line shafting and withdrawal of the tailshaft inboard. 2. ALIGNMENT The Contractor shall prepare calculations of the Influence Method 20 to determine: (1) Bending Moment, Shear and Deflection and the propulsion shaft- ing system including propeller and bull gear rotor for the cold static, hot static and hot running conditions. Values shall be tabulated and plotted. 25 (2) Table of bearing reactions for the cold static, hot static and hot running conditions. (3) Table of bearing influence numbers. The results of these calculations shall be used to establish the proper number and location of bearings and bearing loads. Bearings are 30 to be located in such a manner to obtain a vertical and horizontal setting error as approved by the reduction gear manufacturer. Calcu- lations shall also demonstrate the effects of bearing wear on bearing loads where critical. Individual components of the shafting system shall be aligned by 35 calculated gaps and sags at the interface flanges. Once aligned, the system alignment shall be checked by the Jacking Method. An alignment procedure including bearing jacking data test sheets is to be developed by the Contractor and approved by the Purchaser's Representative prior to alignment of the shafting system. 40 53-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 3. COUPLINGS All flanged couplings shall be fitted with steel bolts. When applicable flanged couplings and bolts shall be in accordance with SNAME Technical and Research Bulletin No. 3-20, Guide for the Design of Line Shaft couplings. Tapered bolts with one inch per foot taper and with 5 the large end of the taper on the after side are also acceptable. Galvanized, painted steel guards shall be provided for all couplings. 4. STEADY BEARINGS There shall be a suitable number of steady bearings of the ring or disc oiled type, with removable lower half shell fitted, for adequately 10 supporting the shafting. If of the ring oiled type, there shall be two rings per bearing. The base and cap may be of ductile iron, cast steel or welded steel construction and the half shells of steel, ductile iron or bronze lined with an approved type of high tin babbitt metal and the caps with suitable bearing metal bands at ends. The babbitt shall be 15 poured centrifugally or under a positive head. Ample oil reservoirs shall be provided with end baffles capable of preventing loss of oil at ends of bearings. Each bearing shall be equipped with a bayonet or other suitable type of oil level indicator other than a sight glass. Filling and drain connections and hand cleanout holes shall also be provided. 20 All bearings shall be identical except that the aftermost bearing shall be fitted with bearing metal on both top and bottom. For ring-oiled bearings the unit load shall not exceed 345 kPa (50 psi) on projected area and the bearing length shall not exceed 1.5 times the journal diameter. For disc-oiled bearings with a nonmechani- 25 cal metallurgical bond in excess of 41,370 kPa (6000 psi) the unit load may be as high as 520 kPa (75 psi) on projected area and the bearing length to journal diameter ratio shall be approximately 1/1 but in no case greater than 1.5/1. Face plate on bearing foundations shall be 300 mm (12 in) longer 30 than the length of line shaft bearing base, to provide space for jacking up shaft when bottom half of bearing is removed. 5. STERN TUBE AND STERN TUBE OIL LUBRICATED BEARINGS The stern atube shall be designed to accommodate the bearing(s) as recommended by the bearing and seal vendor. 35 The stern tube bearing(s) shall be of the oil lubricated babbitt lined sleeve type. There shall usually be one bearing at the forward end of the stern tube and another bearing at the after end of the tube. The bearing(s) shall consist of a ductile iron or bronze backing material with centrifugally spun tin base babbitt. Bearing(s) to be precision 40 type with a non-mechanical metallurgical bond. Evidence of superior bond (in excess of 41,370 kPa [6000 psi]) by Chalmers method or equivalent must be furnished by supplier. 53-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Two thermocouples, one working and one spare, shall be provided in the aft sterntube bearing to remotely monitor bearing temperature. The use of adjustable, horizontal split type bearings or self aligning tilting pad type bearings is also acceptable. 6. STERN TUBE SEALS 5 Service proven type inboard and outboard seals shall be fitted at forward and aft ends of stern tube to prevent ingress of sea water or loss of lubricating oil. The inboard seal shall be fitted with a package pump circulating and cooling system. 7. STERN TUBE OIL SYSTEM 10 An independent propeller shaft bearing lubricating oil system shall be provided for the stern tube bearing. The system shall be of a common open and closed reservoir system arranged to maintain static head on the stern tube. (A pressure balanced system will also be considered.) A small pump shall be provided to take suction from the drain tank 15 through a strainer isolated by valves for cleaning, and discharge to the head tank and to the line from the tank to the bearing. The pump shall be controllable at the pump and from the engine room console. A thermostatically controlled electric heater shall be installed in the drain tank. 20 Two head tanks shall be provided, one for the loaded condition, and one for the light condition. The heat tank shall be located in suitable accessible space at an elevation recommended by the bearing and seal vendor. Tank shall have a funnel with cover for hand filling, gage glass with graduated scale, 25 vent, supply and return connections and an overflow. Provision shall be made for actuating alarm on the engine room console for low level in the head tank. A storage tank with a capacity of about 760 liters (200 gallons) shall be installed in a suitable location and shall be fitted with fixed 30 filling connection from the upper deck, vent, overflow, gage glass and valved piping connection to the circulating pump suction for trans- ferring oil to the reservoir maintaining static head in the system. All pipe and fittings shall be steel thoroughly pickled and cleaned by circulating oil through the system. The interior of the stern tube 35 shall also be cleaned and thoroughly inspected to insure that no dirt or abrasive particles are present before final assembly and closing. The oil for this system shall be the same as for the main propulsion machinery. Oil loss from the system shall not exceed 3.8 liters (one gallon) per day. 40 53-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The stern tube lubricating oil system shall be fitted with suction and discharge connections to the main lubrcating oil purifier via a locked valve isolation system to a selected main engine lube oil purifier in order to accomplish batch cleaning. Connections shall be provided for filling the spaces between shaft 5 and the stern tube readily with grease in an emergency. 8. BULKHEAD STUFFING BOX AND GLAND Bulkhead stuffing boxes and glands shall be of cast steel with bronze bushings and shall be in halves to permit ready removal. Gland studs shall be bronze with bronze nuts. Grease lubrication shall be 10 used and supplied through a split, composition lantern ring located centrally within the packing rings. Packing shall be secured from turning by grooving and bushing. 9. MAIN THRUST BEARING Included with main engine. See section 51. 15 10. PROPELLER General The propeller shall be right handed (for single screw ships) and shall be manufactured in accordance with the approved working plan. Unless otherwise specified in the contract, the shipbuilder will be 20 responsible for developing the propeller design. The number of propeller blades shall be selected with Owner's approval so as to obtain the best possible combination of efficient propulsion and minimum vibration for both the main machinery and the ship's hull. The Contractor shall furnish an analysis of torsional, longitudinal and whirling vibration character- 25 istics to verify the selection of the number of blades. The blade thickness and/or blade stress characteristics and number of blades shall be subject to approval of the Owner. All propellers and propeller shafts for multiship contracts shall be interchangeable. Model Test Requirements (See Article 11 of Section 1) 30 Blade and Balancing Tolerances (ISO Standard R484, Class I, may also be used) 53-5 Blade Width--. 5R to tip + or - *Blade Thickness--. 2R to .5R + 4.75 Blade Thickness--. 6R to tip + 3 mm Rake + or - Blade Spacing + or - **Pitch— average + or - Pitch — at any section + or - ***Ba lance ^% MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Propeller blade tolerances shall be as follows: 13 mm (1/2 in) or faired contour mm (3/16 in)-0 (1/3 in)-0 25.4 mm (1 in) 5 15 min. Vlo Var. from design pitch 1 1/2% Var. from design pitch Propeller diameter + - 13 mm (1/2 in) 10 *Blade thickness tolerances are applicable to any point on the propeller blade. **The average pitch over the whole propeller shall be within the specified tolerance. The average pitch over each blade shall be within specified tolerance. 15 ***The maximum residual unbalanced force developed at maximum rpm shall be within the specified tolerance which is expressed as a percentage of the weight of the propeller. To facilitate inspection, the unbalance should be resolved in terms of a weight at the tip of one blade and noted on detail propeller plan. 20 Bore The hub shall be taper bored with taper of 25.4 on diameter per 305 mm length (1 inch on diameter per foot length) and keyway cut to fit plug type template. Longitudinal tolerance on position of templage when snug fit is plus 3 mm (1/3 in) minus mm (0 in). Tolerance on all 25 other machined dimensions is 0.254 mm (0.010 in) and on unmachined dimensions 6.4 mm (1/4 in). Unless otherwise specified each contractor shall provide a set of plug type gages for the first ship of a contract to be constructed in the builder's yard. Keyless propeller designs will also be acceptable for fixed pitch 30 propellers. Water Seal ing The cavities at forward end, center and aft end of hub shall be filled with an approved rust inhibitor compound. Filling and vent holes shall be drilled and pipe-tapped. Plugs shall be punched to prevent 35 backing out. A dished plate shall be welded over the aft end of the nut to prevent entrance of sea water regardless of the fairwater cap. 53-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Guard A heavy steel plate rope guard shall be provided between the stern frame boss and propeller hub. A hydraulically secured device shall be provided for securing the propeller to the tail shaft. The propeller nut shall be complete with 5 jacking tools and spare parts. The following information shall be clearly stamped on the hub of solid propellers and on hub and individual blades of built-up propellers, in a location that will be visible when propeller is installed on ship: Hull No. Diameter 10 Plan No. Pitch-0.7R Contract No. Weight Manufacturer ABS Approval Material Heat No. 11. FAIRWATER CAP 15 A cap with contour designed to suit the aperture space shall be bolted to the aft end of the hub to provide a watertight enclosure over the propeller nut. The cap shall be sealed to the hub face with an 0-ring gasket. The groove for the 0-ring gasket for fiber glass caps shall be cut in the propeller hub not in the cap. 30 The fairwater cap shall be filled at assembly with a rust inhibitor compound, and tested after assembly on hub with 103 kPa (15 psi) pressure. 12. SPECIAL TOOLS As recommended by vendor. 13. SPARE PARTS See Section 86 for policy governing spare parts both on-board and shore-based. In addition to the above one spare propeller and one spare tail shaft shall be furnished for a fleet of similar ships of from one to five ships, and six thru ten, etc. 53-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 55 DISTILLING PLANT 1. GENERAL A distilling plant shall be provided to adequately meet all the fresh water and boiler water needs of the vessel. The number and size 5 of distilling units shall be as specified in the List of Machinery, Section 50. The distilling unit shall be specifically designed for shipboard application, of a compact, self contained, single stage, low pressure flash type, capable of unattended, automatic operation after manual 10 start-up. The distilling unit shall be guaranteed to meet the following performance requirements in addition to those of U.S. Public Health Service: Deliver its processed water at approx. 32°C (90°F) or lower (35°C 15 (95°F) maximum) to any of the fresh water-boiler water (feed) tanks. Supply to the boiler water (feed) tanks shall be via open funnel fitted with splash cover. Rated clean tube capacity for 24 hours continuous operation when supplied with sea water of 1/32 density between -2°C (28°F) and 29°C (85°F) shall be met after 90 days operation without 20 shutdown for cleaning and without use of chemical treatment. All components or unit surfaces in direct contact with the unprocessed, partially processed and concentrated residual feed water shall be non-ferrous or coated with neoprene, fiber glass, PVC or a similar permanently bonded material. 25 Fasteners (bolts, studs, nuts, washers, etc.) in locations having contact with sea water shall be of copper-silicon or brass. Provisions shall be made for in harbor and/or emergency processing or raw-fresh and/or brackish water supplied from shore facilities. Instrumentation shall be furnished to facilitate equipment, unit and 30 plant control, including indication (local and remote) of operational status and salinity indication with visual and audible alarms. Chemical cleaning connections shall be provided. Complete unit drainage and adequate venting shall be provided. Equipment with water boxes and internal tube nest or bundles, 35 wherein liquids circulate, shall have its water boxes proportioned to provide sufficient area to all points for uniform distribution with mineral turbulence. Maximum velocity through tubes shall not exceed 1.83 MPS (6 FPS). 55-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A water meter of the positive displacement type and an automatically operated three-way dump valve shall be incorporated in the processed water discharge line. The dump valve shall be located downstream of its activating salinity cell and upstream of the distillate meter and shall automatically dump the 5 processed water to the bilge when: (a) Salinity at the point exceeds the specified .07 grains of salt per liter (.25 grains of salt per gallon). (Manual reset) (b) Interruption of current to salinity indicator, solenoid or pumps. (Manual reset) 10 (c) Temperature of feed (into unit or during cycle) is below 66°C (150°F). (Automatic reset) The automatic reset type, temperature timing delay device shall continue dumping to bilge for at least fifteen (15) minutes after feed water temperature has been raised and maintained at 68°C (150°F), to per- 15 mit flushing out of water within unit resulting from low temperature feed water. An electrical salinity indicating system of the detector and alarm type shall be provided. The system shall indicate locally and alarm remotely at the engine room console via salinity cells located wherever 20 sea water leakage could possibly contaminate any processed or treated water. 2. SPECIAL TOOLS Reseating tool, gage glasses, each size 1 Special tools, set 1 25 Tube expander, set 1 3. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 55-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 56 FUEL OIL SYSTEM 1 . GENERAL In accordance with the general requirements set forth herein, the ship shall be provided with a complete heavy fuel oil system and a diesel 5 oil system covering fueling, storage, transferring, treating and discharge of the appropriate fuel. The heavy fuel oil system shall be provided to supply heated fuel oil to the main propulsion units when the ship is operating at full power and to supply the oil fired auxiliary boiler. 10 The diesel oil system shall be provided to supply diesel oil for start-up of the main engines up to full power operation and shall also supply diesel-driven generators and oil fired boiler, if desired, under all operating conditions. High level alarms shall be provided for the fuel oil settling tanks 15 and the fuel oil standpipe. Sheet steel drip pans shall be provided for use under burners, heat- ers, pumps, strainers and filling connections. 2. TANKS Tanks shall be provided as required by the needs of the system and 20 shall include the following: (a) A heavy fuel oil settling tank, a heavy fuel oil day tank, and diesel oil day tanks shall be provided as shown on the Machinery Arrange- ment plans. Each shall be provided with transfer connections, high-service connections, stripping connections, and level indicators. Each tank 25 shall have the capacity to supply its respective units for at least 30 hours at ABS power. Diesel oil tank piping shall be fitted with check valves as necessary to prevent mixing with heavy fuel. Heavy fuel oil tanks shall be fitted with heating coils and insulated. (b) A mixing tank or return pipe shall be provided to permit the 30 fuel supply to the main engine to be switched between heavy fuel and diesel oil without a sudden change in temperature or viscosity, and to equalize the temperature of hot fuel returning from the engine. Mixing tank heating coils and insulation shall be provided if required. (c) A sludge tank shall be provided to receive water and sludge 35 from all sources, such as purifiers, service tanks, etc. 56-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (d) One diesel oil service tank of welded steel construction shall be provided for the emergency diesel generator. The capacity shall be as specified in the Machinery List and shall be sufficient for at least 12 hours operation of the emergency generator. The tank shall be located in or near the emergency generator room. A level indicator shall be 5 provided. If the tank is outside the emergency generator room, a remote reading level indicator located in the emergency generator room shall also be provided. If the emergency diesel generator diesel oil service tank serves as a source of diesel oil for cold boiler starting, the tank shall have an 10 interior oil-tight partition arranged to retain a quantity of fuel sufficient for 12 hours operation of the emergency generator. A separate level indicator shall be provided for each compartment of the tank. 3. FUEL OIL FILLING CONTROL STATION The fuel oil system shall be arranged to permit monitoring of all 15 F.O. tanks and manual control of all valves governing filling, transfer- ring and discharging of fuel oil from a central control station in the machinery space. The location of the station shall be such that the necessity for controlling applicable valves remotely will be kept to an absolute 20 minimum. Remote control of all valves located outside of the machinery space will be required with the exception of those valves located in the shaft alley adjacent to the engine room bulkhead. The station shall be provided with: (a) Bunkering Telephone System 25 (b) Local gage for detecting overflow level in the Standpipe. (c) Control of F.O. Transfer Pumps 4. FUEL OIL FILLING Port and Starboard filling stations for both heavy and diesel oil shall be provided outside the Machinery Space. Each valved filling 30 connection shall terminate with an approved quick release type safety flange coupling and a blank flange. 5. FUEL OIL TRANSFER The fuel oil transfer piping, serviced via its designated pump, shall be capable of the following functions for both heavy fuel and diesel oil: 35 (a) The transfer of fuel oil from any tank used for fuel oil to any other such tank. 56-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) The transfer of oil from the fuel oil storage tanks to the settling tanks through the settling tank low suction with automatic shut down of the transfer pump upon settling tank high level alarm. (c) The stripping of water from the settling tanks and day tanks through the low suctions. 5 (d) The discharge of fuel oil to the filling stations outside the Machinery Space. One diesel oil transfer pump shall be provided to pump diesel oil to the emergency generator diesel oil service tank. Means to protect the fuel oil tanks from excessive pressure during 10 filling and pumping operations shall be provided by use of a standpipe system or other approved method. Transfer piping shall be arranged to prevent inadvertent mixing of heavy fuel and diesel oil. 6. FUEL OIL PREPARATION SYSTEM 15 A complete heavy fuel oil preparation system shall be provided and installed. This system shall be served by two self-cleaning type centri- fuges with heaters. Heavy fuel oil shall be drawn from the fuel oil settlers via duplex strainer and discharged to the fuel oil day tanks via the purifier heater and purifier. Fuel oil sludge from the purifiers 20 shall be pumped to the sludge tank. One diesel oil purifier shall take suction from the diesel oil storage tanks via a duplex suction strainer and discharge to the diesel oil day tanks. The two centrifuges for heavy fuel oil shall be identical and shall 25 be complete with attached suction and discharge pumps. A connection shall be provided to bypass the diesel oil purifier and lead diesel oil directly to the main engine diesel oil supply and diesel generators supply. Precautions shall be made so that heavy fuel oil and diesel oil 30 cannot mix with each other by gravity flow. The purifying systems shall be normally set to run continuously with an automatic timing device to trip the self-cleaning action at pre- determined intervals. A work bench with tool rack and vise shall be installed near the purifiers for cleaning and repairing. Sizing of the 35 system, type of components, and general arrangement shall be as recommended by the engine manufacturer. 56-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 7. FUEL OIL SERVICE SYSTEM The main engine shall be supplied with heavy fuel oil by two fuel oil booster pumps (one on standby) taking suction from the fuel oil day tanks via a duplex strainer, a changeover valve and a mixing tank or return pipe. The booster pumps shall discharge fuel oil through two 5 fuel oil heaters (one in operation), one full flow duplex fuel oil discharge filter, a fuel oil meter with bypass, and an automatic viscosity control system (Viscotherm or equal). Excess fuel shall return to the isolation tank via a fuel meter with bypass. A manually operated three-way valve shall allow return of excess fuel direct to the heavy 10 fuel oil day tank. The changeover valve electrically/pneumatically operated shall perform the following functions: 1. Switch from heavy oil to diesel oil in event of heavy fuel oil system malfunction. 15 2. The valve shall be controlled from the engineer's console to allow the engineer to change from one fuel system to another at all levels of operation. 3. Local manual control shall be provided. Fuel oil supply pressures shall be maintained by an orifice or 20 orifices, and/or a back pressure valve as required, returning excess fuel oil to the mixing tank. The return line shall be fitted with a meter and bypass as mentioned above. Diesel oil shall be piped from the diesel oil day tanks to the mixing tank via the above mentioned three-way remotely controlled changeover 25 valve. Thereafter the booster pumps and system described above shall handle diesel oil for the main engines. A separate supply line from the diesel oil day tanks to the auxiliary diesel engines shall be provided and fitted with strainer, valves, thermometer, pressure gages and all necessary fittings. 30 8. FUEL OIL HEATERS Two final or service fuel oil heaters, one operating and one standby, shall be provided with thermostatic controls capable of heating sufficient oil to provide maximum ABS horsepower and to maintain the proper viscosity and temperature of the heavy oil entering the fuel injection system. The 35 capacity of the heater shall be as specified in Section 50. Heaters shall be designed and located so that heating elements may be withdrawn without dismantling of piping or equipment, Valved connec- tions shall be provided to permit chemical cleaning of heaters in place and without disconnecting fuel oil lines. 40 56-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 9. FUEL OIL AND DIESEL OIL STRAINERS AND FILTERS All strainers or filters for fuel oil and diesel oil service shall be of all steel construction with flanged connections. Strainer baskets, when strainers are used, shall be of monel or stainless steel. The net clear area through all strainer baskets shall be at least six times the 5 area of the inlet connections. The basket perforations shall be as detailed in Section 50 herein. Each strainer compartment shall be fitted with drain and vent valves. Fuel oil filters shall be of the metal edge type or equal. Cartridge type may be used as approved. Pipe inlet and outlet connections shall 10 be flanged. A drain shall be provided on the filter sump. 10. FUEL OIL METERS Meters to indicate consumption shall be fitted in both the fuel oil and diesel oil systems. Flow meter shall be placed in line between the day tank and the mixing tank as the fuel quantity actually burned passes 15 from the day tanks into the mixing tank. The meters shall have steel or bronze body and cover, bronze gear train, direct reading horizontal dial with cover, slave dial indicators located on the operating console, feet for mounting and flanged pipe connections. Accuracy shall be within 1 percent when passing 20 to 100 20 percent of its maximum capacity. A valved bypass shall be provided around each meter. 11. VISCOSITY CONTROL EQUIPMENT A continuous viscosity measuring and automatic controlling device for fuel oil heating shall be provided. The unit shall be complete with 25 all necessary appurtenances to position the control valve which regulates the flow of steam to the final fuel oil heaters. Provisions shall be made for manual adjustment, high and low viscosity alarms and indications of fuel oil viscosity at the central control console. 12. PUMP CONTROLS 30 The following pumps shall be equipped with means for shutting down from a position outside the machinery space, which will always be accessible in the event of fire in the machinery space: Fuel Oil Transfer Diesel Oil Transfer 35 F.0. and D.0. Purifiers F,0, Booster Pumps 56-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 13. DIESEL OIL SYSTEM FOR EMERGENCY GENERATOR The diesel oil supply to the emergency generator engine shall be by gravity from the diesel oil service tank. The supply line shall be fitted with a valve at the tank. Diesel oil return from the engines shall be taken to the top of the 5 tank. Diesel oil supply and return lines shall be fitted with flexible connections at the engine. 14. SPECIAL TOOLS The following special tools shall be provided: 10 Fuel Oil Heaters Tube expander, if required 1 Union and resurfacing tool, if required 1 15. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 56-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 57 LUBRICATING OIL SYSTEM 1 . GENERAL The main engine shall be fitted with lubricating oil systems com- plete with all necessary pumps, coolers, filters, tanks, valves, piping, 5 fittings and instrumentation as recommended by the engine manufacturer. The oil supply shall consist of two independent lubricating systems because of two different oil qualities required. Each system shall serve independently its respective engine components. (a) Combined low pressure and high pressure oil system for bearings 10 and control system. (This will depend on type of main engine installed.) (b) Cylinder lubricating system. All pipes connected to the engine shall be of the flexible type. all motor-driven pumps serving lube oil systems shall be of the positive displacement type, sized as recommended by the engine manufacturer and 15 fitted with relief valves to suit system pressure. Drip pans, as necessary, shall be fitted. The lubricating oil systems shall have no connection with each other except as specified for purification of oil. The lubrication system for the main engine shall be designed in 20 accordance with the applicable portions of ASME Standard No. Ill, "Recommended Practices for the Design of Marine Propulsion Turbine Lubricating Systems." Prior to filling with the initial operating charge, the complete lubrication oil system, including all tanks, shall be thoroughly cleaned 25 n accordance with the applicable portions of ASME Standard No. 113, "ASTM-ASME Recommended Practices for the Flushing and Cleaning of Marine Propulsion Turbine Lubricating Systems" and in accordance with vendor's recommendations. In addition to these requirements, the piping shall be vibrated with 30 a portable machine, or other means upon approval, during the early stages of flushing. It is also recommended that applicable portions of ASME Standard No. 114, "ASTM-ASME Recommended Practices for the Purification of Marine Propulsion Turbine Lubricating Oil" be followed. 35 57-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The auxiliary oil systems shall be designed in accordance with applicable portions of ASME Standard No. 115, "Recommended Practices for the Design, Operation and Maintenance of Marine Auxiliary Machinery Lubricating Systems" and the requirements herein, and the flushing and cleaning of such systems shall be in accordance with ASME Standard 5 No. 119, "Recommended Practices for the Flushing and Cleaning of Marine Auxiliary Machinery Lubricating Systems. Under normal conditions, oil shall be supplied under pressure by one of the lubricating oil service pumps. The other pump shall act as a stand-by and shall automatically restart in the event of a drop in 10 pressure below that required in the system. 2. MAIN ENGINE LUBRICATING SYSTEMS (a) Combined low pressure and high pressure oil system or a single system, depending on the design of the main engine to service the following: 15 (1) main bearings, thrust bearing, camshaft drive wheels, camshaft and fuel pump (2) crosshead and bottom end connecting rod bearings (3) control system The lubricating system shall be provided with two simplex 20 suction strainers, two lube oil service pumps, one full flow lube oil duplex discharge filter, oil cooler, the automatic temperature control, two lubricating oil pumps. Pumps, strainers, filters and oil loaders with automatic temperature control valves shall be furnished to suit the required configuration. 25 (b) The cylinder lubricating oil system. The cylinder lubricating oil system shall be provided with the storage tank a simplex suction fine mesh filter, electric transfer pump and the daily service tank. 3. TANKS 30 (a) All tanks in the system shall be provided with approved oil indicators, sounding tubes, manholes, cleanout holes, internal ladders as required and all necessary connections and fittings. Wherever pos- sible, the bottom of the tanks shall be sloped to facilitate drainage. Where flat type tank level indicators are employed, the tank level 35 indicator connection to the bottom of the tank shall be arranged to allow for deflection. Tank capacities shall be as recommended by the engine manufacturer. 57-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Main Engine Lube Oil Drain Tank One lubricating oil sump tank shall be provided under the main engine and shall be of welded steel construction. The tank shall be equipped with an oil level indicator, heating coils if required, venting and drainage. 5 (c) Main Engine Lube Oil Storage Tank One lube oil storage tank of welded steel construction shall be provided. (d) Cylinder Lubricating Oil Storage Tank One cylinder lubricating oil storage tank of welded steel 10 construction shall be provided. The tank shall be equipped with oil level indicator, overflow, drain and vents. (e) Cylinder Lubricating Oil Daily Service Tank One cylinder lubricating oil daily service tank of welded steel 15 construction shall be provided. The tank shall be equipped with the oil sight glass, low level alarm, overflow, venting and drainage. (f) Purifier Sludge Tank Lube oil purifier sludge shall be discharged to the sludge tank serving the fuel oil and diesel oil purifiers. 20 4. LUBRICATING OIL COOLERS (a) One or more main lube oil cooler of the horizontal or vertical type shall be provided for each engine serving its respective lubricat- ing oil system. Cooling medium shall be sea water, or fresh water if provided. They shall generally be constructed in accordance with the 25 standards of the Tubular Exchanger Manufacturer's Association. Waterboxes of all coolors shall be designed so that it will not be necessary to dismantle any piping for access to the tubes. Material, approximate sizes and capacity of coolers shall be as specified in the Machinery List and recommended by the manufacturer. Internal fittings 30 shall be arranged so that a minimum of interface with the water flow and a minimum turbulence will result. The inside of the shells shall have all mill scale removed and shall be coated with rust preventative before assembly. The shells shall be equipped with a removable plate so that the internal condition may be 35 inspected without removing the tube bundle. Each cooler shell shall have two 25 mm (1 in) ips drain connections. Vent connections shall be a minimum of 19 mm (3/4 in) ips. 57-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Auxiliary Lubricating Oil Coolers In general, the auxiliary lubricating oil coolers shall be constructed as described above; however, because of size limitations, the lead detector telltales may be eliminated. 5. LUBRICATING OIL PURIFIERS AND HEATERS 5 One motor-driven self-cleaning automatic centrifugal purifier shall be provided, complete with suction and discharge pump. One purifier shall serve the main engine sump and be arranged for continuous purifi- cation of the oil in the respective sump. Alternate purification systems, as approved, may be used as recommended by the engine manufacturer. 10 The suction and discharge pumps shall be rotary units capable of handling oil at the rated capacity of the purifier and constructed in general accordance with Section 73. Each pump shall be fitted with a relief valve. The unit shall be fitted with all piping necessary for purification, and shall be arranged so that the pumps may be used in 15 parallel bypassing the purifier bowl, for transfer service. The puri- fier bowl assembly shall be stainless steel throughout, AISI, 302 or 304, or monel . Other component materials shall be suitable for the service intended. The purifier shall be capable of continuous operation at the speci- 20 fied capacity. With a water content of the incoming oil of 4 percent by volume, and solids content of 0.135 percent by volume, the purified oil shall not show more than 0.10 percent water by volume, and 0.02 percent solids by volume. Water separated from the oil shall not contain more than 0.50 percent oil by volume. 25 The purifier suction pump shall be arranged to draw a sample of oil from the sump tanks for testing. The purifier pump shall also be arranged to draw water or sludge from the bottom of the sump tank and discharge same to the sludge tank via funnel drain. The purifier shall be equipped with a brake. The purifier shall be 30 of the gastight type with flanged pipe connections and shall be arranged to permit quick access for cleaning. Means shall be provided for prim- ing the bowl with fresh water. A sampling connection shall be provided on the discharge side of the purifier via system piping. The size of the sampling connections shall not be less than 12.7 mm (1/2 in). 25 The purifier waste water discharge shall be fitted with float actuated electric contact maker device that will shut down the purifier upon excess water discharge. A switch will also be fitted to cut out the float actuated shutdown. Vibration switch shall be fitted to de- energize the purifiers upon excess vibration. Alternate methods for 30 different types of purification systems will be permitted upon Owner's approval . 57-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A workbench complete with bowl vise, tool rack, drip pan and drawers with thumb latches and drawer stops shall be provided near the lubricat- ing oil purifier for cleaning and servicing the purifier. Workbench top and drop pan shall be galvanized steel. The lube oil purifier heater shall be of shell and tube or plate 5 type that will permit the tube bundle to be removed for cleaning. Each heater shall be of capacity equal to that of the purifier. 6. STRAINERS All lubricating oil strainers shall be fitted with differential pressure gages. The bodies and covers shall be of cast iron or steel. 10 The baskets shall be one piece of suitably perforated monel and shall be lined with monel or stainless steel wire cloth where required for ade- quate particle separation. The total clear area through the perforations mesh when used shall be at least six times the area of the discharge pip- ing. An effective arrangement of permanent magnets shall be provided in 15 each basket for arresting ferrous particles. The strainers shall have flanged connections and shall be suitable for the working pressure. Each strainer compartment shall have a flanged valved drain connection piped to the Lube Oil Sludge Tank. Each strainer compartment shall be provided with a 12.7 mm (1/2 in) ips valve vent. 20 The strainers shall be located so that baskets can be changed from the floor plates. Drip pans shall be installed beneath each strainer. 7. PIPING (a) General The layout of each lubricating oil system shall be designed to 25 keep all oil piping as remote as possible from hot surfaces and electrical equipment to minimize fire hazards and in no case shall an oil pipe be located closer than 460 mm (18 in) to a surface which exceeds 343°C (650°F). Joints installed close to a surface which exceeds 343°C (650°F) where failure might result in a fire shall be 300 lb standard male and 30 female flanges with metallic gaskets. Screwed type fittings shall not be permitted except in gage lines beyond the gage line root valve or cock. Thermometers and gages shall be conveniently located for reading and replacement. External piping shall be cleaned by pickling or other 35 approved methods. The design and installation shall ensure that all parts of each system will be readily accessible for thorough cleaning in accordance with the specified procedure. (b) Filling and Transfer 57-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Separate connections shall be provided on deck, both port and starboard, for filling the oil system directly to the storage and settl- ing tanks by gravity. The filling connection shall be arranged for locking, and shall be threaded to receive a plug, a screwed hose valve, or a screwed funnel. Fill lines may be of brass. 5 Provisions shall be made for emptying the system into barrels via the deck filling valves or via a separate discharge line. A 3.05 m (10 ft) length of hose shall be furnished for this purpose. (c) Overflows and Vents The settling and storage tanks shall be fitted with vents at 10 least 64 mm (2.5 in) in diameter each terminating in a screened goosneck bellmouth fitting of sufficient height to insure that oil will not spill out under the most severe condition of roll of the ship and shall be at least 915 mm (3 ft) above the top of the tanks. Sump tank vents shall be provided. Drains shall be provided to 15 drain the precipitated oil and water to the lubricating oil sludge tanks. The arrangement shall be such as to prevent the return of any of these drains to the lubricating oil tanks. For other requirements, see Section 11 (Piping Hull Systems). (d) Service Piping 20 The system shall have sufficient capacity to supply the required amount of oil at the proper temperature to correctly lubricate the main engines, auxiliaries and diesel generators at all operating conditions. Piping shall be arranged to permit overhaul of any duplicate unit without interfering with the operation of the other unit. 25 (e) Purifier Piping Piping shall be arranged so that both continuous or batch purification may be performed for the main engine. When continuous purification is used, the oil shall be drawn from the main engine sump tank, run through its purifier and returned to 30 the same sump. Suction and discharge tailpipes in the sump tank shall be adequately separated to prevent short-circuiting of purified oil. When emergency batch purifiying, the oil shall be drawn from sump tanks and discharged into the settling tank. After the oil has been heated and settled, the oil shall be discharged to the sumps by gravity 35 flow. The water and sludge removed from the lubricating oil shall be discharged to the sludge tank. 57-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The sump tank fill lines shall terminate below the working level to prevent the formation of foam. 8. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 57-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 58 SEA WATER SYSTEMS 1 . GENERAL The ship shall be provided with sea water systems for the following services: 5 Lube oil coolers, main and aux. engines Jacket water heat exchanger, main and aux. engines (Fresh water coolers may be used as an alternative) Turbocharger air coolers Fresh water coolers 10 Sea water service Fire main Clean ballast Bilge Priming 15 Desalination These systems shall be complete with all necessary pumps, tanks, coolers, strainers, gages, thermometers, piping, valves, fittings, con- trols and other appurtenances necessary to meet the needs of a ship in compliance with the requirements of the regulatory bodies, the general 20 requirements contained herein and applicable sections of these specifications. Expansion joints, where required in sea water piping systems, shall be of an approved reinforced flanged rubber design. Discharge overboard, except bilge and ballast, shall be through a 25 high-lift angle, globe, gate or butterfly valve. Bilge and ballast discharge shall be through a stop-check valve. Thermostatically controlled valves of the fail open type shall be provided for the following: Ship's service refrigeration condensers 30 Cargo refrigeration condensers Air conditioning refrigeration condensers Provision shall be made to prevent progressive flooding between watertight compartments below the bulkhead deck via any open-ended pipe in the event the pipe is severed or otherwise damaged by collision or 35 grounding. 58-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 2. SEA WATER ENGINE COOLING SYSTEM Two sea chests shall be provided for supplying water to two main sea water service pumps (one running). Each pump shall take suction from its own sea chest and discharge through a sea water main to the main engine jacket water coolers, main engine lube oil coolers and discharge overboard. 5 A 3-way temperature control valve shall be provided to maintain the minimum acceptable sea water inlet temperature to the engine cooling sys- tem as required by the engine manufacturer. The main sea water service pumps may be cross-connected to serve the auxiliary sea water system. Alternate means of fresh water cooling system serviced by a salt water 10 heat exchanger is permitted. 3. AUXILIARY SEA WATER SERVICE SYSTEM Sea water for miscellaneous services in the machinery spaces shall be supplied by one or more auxiliary sea water service pump(s). Equipment served by the above system shall include the following: 15 Cargo refrigeration condensers Diesel generators Ship's stores refrigeration condensers Distiller condenser circulating Air conditioning condensers 20 Emergency line shaft bearing water service Boiler water test primary sample cooler Plus all other services, as required 4. FIRE MAIN SYSTEM A complete fire main system shall be provided. Each pump shall 25 discharge through a separate riser to the fire main. The fire and foam pump shall be located in the shaft alley. The main fire pump shall be located in the engine room. All fire main and fire stations exposed to freezing shall be on branches of the fire main with shutoff valves located in protected and 30 heated accessible areas, these sections of the fire main shall have drain valves so located as to properly drain the line to prevent freezing. The fire main shall be fitted with sufficient putout valves for isolating various parts of the system for maintenance and in an emergency without preventing operation of the remainder of the system. 35 Siamese hose inlet shore connections shall be fitted with 64 mm (2 1/2 in) hose connections with American National Standard fire hose coupling female threads, Federal Specification WW-C-621 . Contractor shall provide International shore connection (ship) as per SOLAS (1960) requirement plus additional coupling adapters necessary to suit hose 40 threads in use in ports of ship's normal schedule. 58-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Two 38 mm (1 1/2 in) hose connections shall be provided on the Forecastle Deck forward for anchor washing. In addition, fixed nozzles supplied from the fire main shall be provided in the hawsepipes for wash- ing down anchor chains. The nozzles shall be arranged so as not to interfere with the chains. 5 5. CLEAN BALLAST SYSTEM A clean ballast system shall be provided to ballast and deballast the designated segregated ballast tanks. Means shall be provided for both direct sea flooding and pump discharge to the clean ballast tanks. The system shall be served by the bilge and ballast pumps. A clean 10 ballast control station shall be provided in the Machinery Space. 6. BILGE SYSTEM A bilge system meeting Regulatory Bode requirements shall be provided and served by conveniently located manifolds. Tail pipes shall lead from the manifolds to the points where suctions are required in the holds, in 15 the machinery spaces, and the shaft alley including sludge tanks and cofferdams. Where bilge suction tailpipes are located within one-fifth of the beam of the side of the vessel, or in a ductkeel , a nonreturn valve shall be fitted to the end of the compartment which it serves. Manifolds and 20 valves in the bilge pumping system shall be so arranged that the the event of flooding one of the bilge pumps can take suction from any com- partment; and in addition, damage to a pump or its pipe connecting to the bilge main outboard of a line drawn at one-fifth of the vessel's beam shall not render the bilge system inoperative. 25 In addition to the bilge suctions, two of the machinery space drain wells, preferably aft end of the engine room port and starboard and one drain well in the shaft alley, if a shaft alley is provided, shall be fitted with level sensing switch operated motor driven vertical sump pumps of 3.1 1/s (50 gpm) capacity. The pump discharge line shall be fitted 30 with a check valve and a stop valve at the pump. 7. PRIMING SYSTEM A priming system shall be provided for any pumps that require priming. The vacuum pumps shall be fitted with adjustable vacuum switches located on the vacuum tank that shall be set to automatically start one 30 pump at 51 kPa absolute (15" Hg vacuum) and the second at 61 kPa absolute (12" Hg vacuum), and to stop the pumps at 34 kPa absolute (20" Hg vacuum). 58-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 8. STRAINERS All of the pumps mentioned in this section shall be provided with suction strainers which shall be of the duplex basket type in continuously operating systems. The strainers shall be flanged and of galvanized steel body and cover. The basket shall be of monel . The perforations 5 shall be 10 mm (3.8 in) diameter. The free net area through the strainer shall be at least four (4) times the area of the connected pipe. Any equipment being served by a sea water system having passages of a smaller diameter than the mesh sizes of its associated sea chest strainer or pump suction strainer, shall be suitably protected by the individual 10 simplex type strainers. However, where parallel units of equipment are served, duplex strainers shall be installed in a common line. One spare basket shall be furnished for each strainer. 58-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 59 FRESH WATER SYSTEM 1 . GENERAL A complete fresh water system shall be installed for main and auxiliary engine cooling, boiler feed system, domestic and sanitary 5 services consisting of tanks, pumps, heaters, coolers, gages, piping, valves, fittings and other appurtenances necessary to meet the need of the ship in compliance with requirements of the Regulatory Bodies and applicable Sections of the Specifications. An efficient fresh water cooling system shall be provided for the 10 main and auxiliary engines. A sufficient number of branch connections and cutout valves shall be incorporated to facilitate full maintenance of equipment and sections of systems without interrupting service to remaining system or systems. Connections exposed to weather shall be fitted with cutout valves 15 and valved drains. NOTE: When shore or stored water presents a bacterial problem for potable use, means such as a holding tank with hypochlorinator or ultraviolet type purifiers may be provided. 2. STORAGE TANKS 20 Fresh water for all purposes shall be carried and/or stored in tanks designated for such on Contract Plans. These tanks shall be fabricated of steel with external stiffeners and their interiors coated with zinc dust or an acceptable substitute. Each tank shall incorporate facilities for local and/or remote 25 water level indicators. Remote indicators shall be located for ready observance from or at a position at the central operating control station. (a) Filling Filling connections shall be provided both port and starboard, 30 each fitted with a hose valve having a locked cap and chain and an engraved noncorrosive label plate clearly indicating its service. Two 15 m (50 ft) lengths of durable, smooth-impervious lined, filling shall be provided per ship. Processed water piping shall be arranged to supply any of the 35 fresh water tanks; however, its normal supply to the processed water tanks shall be via open funnel (s) fitted with splash covers. 59-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Piping from the distilling plant shall be arranged so that distilled water may be delivered to any fresh water storage tank by way of the engine room filling manifold. (b) Transfer A fresh water transfer pump shall be provided to transfer 5 feed water to the distilled water tank and other services as required. 3. COLD FRESH WATER SYSTEM Cold fresh water shall be supplied for all potable, domestic and sanitary purposes, including any system or unit of equipment requiring usage of fresh water for make-up, cooling, cleaning (washdown) or priming. 10 The cold water supply to showers and lavatories shall not exceed 35°C (95°F). The system shall be serviced by two (2) parallel fresh water service pumps (motor-driven, centrifugal) with each pump pressure actuated and arranged so that both pumps can operate simultaneously or be set so that 15 one pump starts at a 34-69 kPa (5-10 psi) higher pressure setting than the other. The hydropneumatic tank, incorporated in the common supply main, shall be cylindrical with dished heads of steel construction, galvanized or equivalently coated and shall comply with Regulatory Body requirements. 20 4. MAIN ENGINE COOLING SYSTEMS The main engine fresh water cooling requirements shall be met by independent cooling systems consisting of necessary motor driven pumps, coolers, tanks, etc. A subordinate system on the engine may be provided to cool the fuel oil injectors in accordance with the engine manufacturer's 25 recommendations. (a) Main Fresh Water System for Cooling the Cylinder Jackets Liners Covers and the Turbochargers A jacket water pump shall take suction on the main engine jacket cooling drain manifold and deliver fresh water to the engine supply mani- 30 fold via a jacket water cooler. The cooler shall be fitted with a thermostatically controlled bypass to maintain a constant discharge temperature. To maintain a head pressure on the system and a net positive suction head to the jacket water pump, an expansion tank shall be fitted 35 and piped to the pump suction. This tank shall have a vent, overflow, gage glass, low level alarm, fresh water make-up valve and connections to a corrosion control tank. The system pressure shall be kept at the correct level by means of a throttling orifice plate in order to avoid formation of vapor. The system shall be continuously vented. The 40 59-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The cylinders shall be provided with drains. Drain connections, with a locked drain valve, shall be fitted to drain the jacket system to the bilge. The heater shall be provided to preheat the main engine before starting and to maintain the temperature whenever it is temporarily stopped. 5 A fresh water generator shall be installed in parallel with the jacket fresh water cooler. Its capacity is limited to the heat available in the jacket cooling water, which in turn depends on the engine load. (b) Piston Cooling System (If required) The piston cooling system shall supply cooling water to each 10 piston through the telescopic pipes. The system shall consist of a fresh water drain tank (serving as water storage) eqipped with the heating coil to warm up the water before starting the engine and to maintain the minimum water temperature while the engine is temporarily stopped. The system shall be equipped with two fresh water pumps and the cooler 15 installed between the pumps and the engine. The system shall also have an automatic temperature control valve to regulate the water temperature on the inlet side of the engine. In order to prevent water leakage at the telescopic pipe glands, when the engine is stopped, the system shall automatically drain, when 20 the circulating pumps are stopped. (c) Fuel Injector Cooling System (If required) The main engine shall be fitted with a separate closed circuit fuel injector fresh water system using reated fresh water. One running injector cooling pump and one standby shall take suction from an expansion 25 tank. The expansion tank shall be fitted with the heating coil, which is necessary for preheating the fuel injectors and for maintaining their temperature during normal operation or while the engine is temporarily stopped. The tank shall be equipped with vent, drain, overflow, gage glass, low level alarm and chemical filling pipes. The system shall have 30 a temperature control valve mounted in the steam supply line, to regulate the water temperature in the expansion tank. Drain connections, with a locked type drain valve, shall be fitted to drain the injector cooling water system to the bilge. 5. HOT FRESH WATER SYSTEM 35 Hot fresh water shall be supplied to all domestic fixtures, systems or units of equipment requiring usage. Fresh water, via a branch connection from the cold fresh water supply main, shall supply the storage type fresh water heater through a stop-check valve. The discharge or riser from the heater shall be run 40 59-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION directly to the highest deck level requiring service and return as the return main to the heater via a hot water circulating pump. Services to the various domestic fixtures, systems or units of equipment shall be supplied through branches off loop circuits at various levels. Each circuit shall loop from the riser to the return main and shall be fitted 5 with a manual control valve for balancing the system. Branches from the loop circuits shall be as short as possible to minimize wastage of water due to dead-end connections. The hot water circulating pump, taking suction from the return main and discharging to the heater via a stop-check valve, shall have a 10 bypass, incorporating a cutout valve and a non-return type valve, to permit water circulation by the thermosiphon principle. (a) Storage Type Water Heater The cylindrical with dished heads, storage type hot water heater shall be of the submerged tube coil type meeting Regulatory Body 15 requirements. The heater shall be fitted with a secondary electric heating element and thermostat. The water temperature leaving the heater shall be 66°C (150°F), thermostatically controlled by a regulating valve in the steam supply line. The outlet from the heating coils shall be fitted with a mechanical trap. 20 Steel, resin coated, shall be used for th<5 ; tank shell and head with bronze for the tube sheets and inlet head. Heating coils shall be of aluminum-bronze. (b) Sink Heaters Sinks used for sterilizing cooking utensils and dishes shall be 25 in accordance with USPHS requirements. (c) Instantaneous Heater In lieu of the storage type heater a fast recovery type water heater, Constantemp Heater, Leslie Co., or equal, may be provided. The flow controlled fast recovery type water heater shall be an integrally 30 piped heater-control package capable of supplying hot water instantane- ously at the set temperature within 2°C (4°F) over full capacity range without the use of a thermostatic control device. Package shall consist of cast steel shell, copper coil heat exchanger, flow operated blending valve and strainer. 35 6. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 59-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 60 FEED AND CONDENSATE SYSTEMS 1 . GENERAL A complete feed and condensate system shall be installed. The system as described herein is based on one vertical exhaust gas 5 boiler and one oil fired boiler packaged unit. Consideration will be given to other boiler system configurations to provide the required steam demand. A valved bypass shall be provided around each tubular type heat exchanger. 10 2. STEAM DRAIN COLLECTING SYSTEM A steam and fresh water drain collecting system shall be provided to collect drains from steam heating coils and machinery as required. Boiler gage glasses, escape piping, soot blowing piping and other similar intermittent services which would be impractical to lead to the 15 drain collecting system may be led directly to the bilge. Care shall be taken to ensure that drains do not impinge directly on piping, tank top or equipment or discharge in way of equipment. Drains from hotel service, lube oil and fuel oil tank heating systems shall return to the contaminated drain and inspection section 20 of the combined fresh water drain collecting tank and vent condensers. Relief valves and vacuum breakers shall be installed where necessary in drain main. 3. FEED SYSTEM There shall be two motor driven exhaust gas boiler feed pumps, each 25 having sufficient capacity to handle its boiler load under all conditions of operation. A simplex type strainer shall be provided in the suction of each feed pump. 4. CENTRAL CONTROL— FEED SYSTEM 30 Provisions for centralized control shall be in accordance with Section 99. 60-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 5. BOILER COMPOUND FEED SYSTEM A boiler compound feed system shall be provided and shall be as specified herein. The system shall consist of a chemical compound feed tank and all necessary piping, valves and fittings and shall be designed and arranged to discharge chemical compounds from the compound feed tank 5 to each of the boilers using feed pump discharge pressure. The feed water line to the compound tank shall be connected to the feed discharge lines so that feed water will be available at all times. The chemical compound shall be discharged directly into the boiler steam drums via a stop valve and a check valve. 10 The compound feed tank shall be of welded steel construction and shall have a capacity of approximately three gallons. The tank shall be designed for full boiler pressure and shall have all necessary connec- tions including vent, drain to bilge and a funnel for filling. The tank shall not be insulated but shall be suitably screened to protect personnel. 15 6. TANKS (a) Combined Fresh Water Drain Collecting Tank and Vent Condenser One welded steel combined fresh water drain collecting tank and vent condenser suitably stiffened and galvanized after fabrication shall be provided. The tank shall have a capacity as required by system 20 design. The tank shall be fitted with a vent condenser and an inspec- tion port with a light at the waterline. It shall be fitted with a scum drain, a test connection at the waterline, vent drain to bilge, a thermometer, a gage glass and a cooling coil. A probe for oil detection 25 and an associated alarm shall also be provided in the contaminated drain section. The atmospheric condenser shall be a sea water cooled unit condensing excess steam produced by waste heat boiler, as well as steam flashed from hot drains in a feed water drain collecting tank. Condensate from the condenser will drain by gravity to the feed water drain 30 collecting tank. (b) Distilled Water and Reserve Feed Tanks A distilled water tank shall be provided and shall supply makeup feed water to the fresh water drain collecting tank and vent condenser by gravity feed. Connection for filling this tank from the 35 desalination plant shall be provided. Reserve feed tank shall be provided and fitted with all necessary connections including a filling connection from the desalina- tion plant and from shore. 60-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 7. SALINITY INDICATOR SYSTEM Salinity indicators of the distant reading electrical type shall be provided to indicate the salinity of the feed system with cells provided at the following locations with an indicator and alarm panel located near the central control consoles: Drain inspection tank outlet line Make-up feed line from reserve feed tanks 8. SPARE PARTS For spare parts see Section 86. 60-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 61 STEAM GENERATING PLANT 1. GENERAL One oil fired, package (auxiliary), full automatic boiler shall be provided and located as shown on the machinery arrangement contract plans. 5 This Boiler shall be capable of burning heavy oil 1000 cSt @ 38°C (4500 SSU @ 100°F), or diesel oil. One vertical tube exhaust gas (waste heat) boiler shall be provided and located as shown on the machinery arrangement contract plans. Each boiler shall be designed for continuous operation and shall be 10 complete, factory assembled (where practical) units of the manufacturer's standard design in current production, the design of which has proven satisfactory for the service intended. This equipment shall be supplied complete with fuel pump, forced draft fan, boiler feed pumps and waste heat boiler circulating pump; all 15 instrumentation, control and alarms; all mountings and integral piping with fittings; motors, motor controllers and integral wiring and fittings; insulation bed plates and mounting brackets, and special tools and equipment as required. Consideration will be given to other boiler types and system 20 configurations to provide the required steam. The normal mode of operation shall be as follows: The boiler feed pumps shall maintain a normal water level in the package boiler, at the maximum operating condition. The boiler circulating pumps shall take suction from the package 25 boiler, circulating the water through the exhaust gas boiler where it will be heated by the engine exhaust gases. The resulting steam and water mixture will return to the package boiler. All steam for the ship's services will be drawn from the package boilers so that it will act as a steam drum of the waste heat boiler. 30 On an increase in steam demand and/or a decrease in production from the waste heat boiler, resulting in reduced pressure to the system, the package boiler will fire automatically to maintain the steam pressure without interruption of services. At times when the waste heat boiler is not producing sufficient 35 steam or is not in service, the package boiler will function automatically to supply the ship's requirements. 61-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Other modes of operation will be considered: 2. EXHAUST GAS (WASTE HEAT) BOILER The exhasut gas boiler shall form a section of the main engine uptake; it shall be a vertical tube boiler with the exhaust gases inside the tubes partially submerged in the water contained in the boiler shell. 5 The water level shall be maintained by a level control valve which senses the steam pressure in the shell and regulates the flow of feed water. Steam from this boiler shall be used for ship's heating, fuel oil heating, and evaporation motivation. Provision shall be made for low steam demand operation at all engine powers. The boiler shall be capable of operating 10 as a silencer in the dry state. 3. OIL FIRED AUXILIARY (PACKAGE) BOILER One oil fired fully automatic, self contained boiler of the packaged type, complete with: Feed Pump(s) 15 Safety Valves Burners and Boiler Front Assembly Solid State Burner Management System Pneumatic Single Element Combustion Control Pneumatic Feed Water Control 20 Boiler Control Console Duplex Fuel Oil Pump Heating Set Light Oil Pumping and Straining Unit Forced Draft Fan and Motor Soot Blower(s) > 5 Water Level Gages Miscellaneous Boiler Trim Valves Visual Photo-electric Smoke Indicator The boiler shall be installed as shown by the Machinery Arrangement Plans. 30 The fuel oil service pumps shall take suction from the heavy fuel oil day tanks or diesel fuel tanks. The steam from the oil fired boiler shall be utilized for cargo tank cleaning, tank heating, and supplying domestic steam system through a reducing station, when required. 35 The oil fired boiler shall automatically start and assume load when the waste heat boiler drops below certain levels as indicated in Section 50. Automatic start up of forced draft blowers, fuel oil pumps, feed water pumps, timed purge cycles, etc. This start-up sequence shall be triggered by a single switch activated by the steam pressure in the waste 40 heat boiler. 61-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 4. FEED PUMPS Two boiler feed pumps shall be installed, each having the capacity to maintain the normal water level on the boiler at the maximum operat- ing condition shown on the Machinery List. The pump shall be designed to take suction from the fresh water drain tank. 5 5. WASTE HEAT BOILER CIRCULATING SYSTEM AND PUMPS The package boiler shall serve as a steam drum for the waste heat boiler. Circulating pumps for the waste heat boiler shall be provided in duplicate, driven independently of other accessories. Waste heat boiler supply and circulating connections with suction nozzle and return distri- 10 bution pipe, shall be provided by the manufacturer of the package boiler. The system shall be designed to enable the two boilers to operate together, sharing the load, with neither impeding the operation of the other. One circulating pump shall run continuously when the waste heat boiler is in service. 15 6. INSTRUMENTATION AND CONTROL SYSTEMS Pressure gages shall be provided at each pump discharge ahead of the discharge stop valve, at the waste heat boiler outlet header and on the package boiler shell (or drum). A differential pressure gage shall be provided across the fuel oil strainer. Shut-off cocks shall be provided 20 for each gage. Two tubular gage glasses with shut-off cocks, drain valves and protective cage shall be provided for the package boiler. The combustion control system and the feedwater regulator shall function as described above to maintain steam pressure and water level 25 within operating limits. Safety features shall be provided in accordance with regulatory body requirements for unattended engine room operation and shall be designed to provide the following responses: Condition Action 30 Low Level Shut down and al arm Low Steam Pressure Alarm Flame Failure Shut down and alarm Low Fuel Pressure Shut down and alarm Low Forced Draft Air Pressure... Shut down and alarm 35 Low Circulating Pump Pressure... Start standby pump and alarm Low Feed Pump Discharge Pressure Start standby pump and alarm 61-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Combusion associated alarms shall be integrated with the combustion control system to restrict their functioning to periods when the combus- tion system is called into operation. Visual alarms shall operate independently but shall trigger a common audible alarm. The common audible alarm shall be provided with connec- 5 tions for remote repetition. A push button shall be provided to trigger the shut-down system manually. Additional connections for remote push buttons shall be provided. Alarm and control system components shall be assembled from standard 10 equipment as far as possible and shall comply with the requirements for marine service. 7. BOILER BLOWDOWN The bottom blowdown from the water drum of the boiler and the surface blow from the steam drum of the water tube boiler shall be led overboard 15 through an independent discharge sea chest. The bottom blow shall be fitted with stop valves equipped with hose valves for draining the boiler. 8. BOILER WATER TESTING OUTFIT A boiler water test station, complete with boiler water test outfit in a metal cabinet, stainless steel sink, chemicals, glassware, sample 20 coolers, gages, thermometers, etc., shall be provided. The sink shall be conveniently located adjacent to the testing station work bench and shall be provided with fresh water from the ship's fresh water system and a drain to the bilge. A water test kit, suitable for testing for oxygen, alkalinity, phosphate, chlorides, hardness in the feedwater, 25 shall be provided. The feedwater sample cooler with capacities as specified in the Machinery List shall be provided, consisting of a primary cooler and a secondary cooler connected in series. The primary cooler shall be supplied with cooling water from the sea water service system and the 30 secondary cooler shall be provided with cooling water from the machinery space drinking water cooler. 9. SPECIAL TOOLS Special tools shall be provided as recommended by the boiler and component vendors. 35 10. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 61-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 62 AIR INTAKE, EXHAUST UPTAKE AND FORCED DRAFT SYSTEMS 1. GENERAL The ship shall be provided with efficient air supply and exhaust systems for the main diesel engine, ship's service diesel generators, 5 emergency generator, and steam generating equipment. Exhaust spark arresters and silencers, expansion joints, main engine air intake filters or air intake filter room and flexible connectors shall be provided as required. Insulation and lagging shall be in accordance with Section 75. Air 10 supply for the generator room (if provided) for ventilation and diesel combustion shall be trunked from the engine room ventilation system. For combustion and cooling of the emergency diesel generator, air shall be drawn through louvered openings in the aft end of the emergency generator room. The blower fan mounted on the engine will discharge 15 through the radiator then to the outside through a discharge trunk. Combustion air for the main engine shall be filtered separately in a smaller filter house and led to the engine via ducts and silencers; or alternately, all engine room air shall be filtered eliminating separate ducting and the engine provided with unit mounted filter silencers. 20 The air duct (if provided) shall be adequately stiffened and supported so that no weight shall be taken by the turbo-chargers. See Section 64 for interface considerations with the engine room ventilation. 2. MAIN ENGINE EXHAUST SYSTEM 25 The exhaust gases from the engine's turbo-chargers shall be led through a waste heater boiler, or silencer spark arrestor to the atmo- sphere. The exhaust ducts are to be routed so as to allow adequate clearance for dismantling the main engine. Each turbo-charger exhaust outlet shall be provided with an expansion joint, depending on the type 30 of supercharger. Other expansion bellows shall be provided as necessary in the system and the entire system shall be adequately supported and insulated. Provision shall be made for drainage of the system. 62-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 3. SHIP'S SERVICE AND EMERGENCY DIESEL GENERATOR EXHAUSTS The exhaust gases from each diesel generator shall be led through a silencer and spark arrester to the stack. Necessary expansion bellows shall be provided in the system and the entire system shall be adequately supported and insulated. 5 Provision shall be made for drainage of the system. 4. OIL FIRED BOILER UPTAKE The oil fired boiler uptake shall be led as directly as possible to the stack. Necessary expansion bellows shall be provided in the system and the 10 entire system shall be adequately supported and insulated. The uptakes shall be constructed of welded steel, adequately stiffened. Provision shall be made for drainage of the system. An illuminated smoke indicator shall be provided; this shall be 15 visible from the control room. 5. FORCED DRAFT BLOWER One horizontal forced draft blower shall be provided in accordance with the Machinery List. The motor and blower shall be arranged on a common baseplate and 20 suitable welded steel seat shall be provided. The blower shall draw air from the machinery space. The suction opening of the blower shall be protected by 12 mm (1/2 in) mesh wire screen. Sufficient work space shall be provided for maintenance of the 25 blower and for dismantling or removal of various blower parts. The forced draft blower shall be furnished in the oil fired boiler package by the boiler manufacturer. (a) Forced Draft Air Ducts A transition piece shall be fitted at the blower outlet and 30 shall be constructed of steel plate suitably stiffened to prevent vibration. 62-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION An airtight expansion bellows shall be fitted between the transition piece and the boiler windbox. Inspection and cleanout openings shall be provided where necessary. 6. SPECIAL TOOLS Special tools shall be furnished as recommended by the equipment vendors. 7. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 62-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 63 STEAM SYSTEMS 1 . GENERAL The auxiliary steam and drain piping shall be installed as required. The systems shall be complete with all valves, traps, fittings, gages, 5 thermometers, etc., and any other equipment necessary for safe and efficient operation of the plant. All strainer baskets shall be stainless steel. Root valves shall be installed in all lines to equipment to facili- tate testing, as per Regulatory Body requirements, and repair without 10 interrupting the remainder of the system. 2. AUXILIARY STEAM SYSTEM (a) The auxiliary steam piping system shall be supplied from the auxiliary boiler steam drum outlet connection at boiler pressure. The system shall be designed to deliver steam at specified pressures and 15 temperatures to the following: 1. Special Cargo & Stripping Pump (if provided) 2. Desalination Plant 3. Shore Steam 4. Fresh water heater 20 5. Salt water heater (if provided) 6. Fuel oil burner tip cleaning, if required 7. F.O. heaters 8. F.O. Purifier heaters 9. F.O. day tank 25 10. F.O. tank heating coils 11. Galley 12. Lube oil purifier heaters 13. Lube oil purifier sludge tank heating coils 14. Ship's heating 30 15. Steaming out for sea chest and sewage tank 16. Cargo and deep fuel oil storage tank cleaning system (if provided) 17. Air conditioning converter 18. Slop tank heating coils 35 19. Lube oil coolers for main reduction gears 20. Elsewhere as required Steaming out for fuel oil tanks shall be via a deck steam main with sufficient quantity of valve hose connections for attaching steam hoses. A minimum number of hoses shall run to and be inserted in the 40 63-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION applicable sounding tubes for steaming our purposes. Sufficient means shall be provided for securing the steam hose to sounding tubes. (b) While underway, the ship's heating systems shall be supplied with steam from the exhaust gas boiler. This main shall be cross- connected with the heating system reducing station branching off the 5 main from the Auxiliary Boiler. The auxiliary steam system shall consist of the necessary reducing stations sized for maximum steam flow plus 25%. The number of reducing stations shall be kept to a minimum, with all reduction taking place in one step, where practicable. 10 3. CENTRAL CONTROL Provisions for centralized control shall be in accordance with Section 99. 4. SAFETY AND RELIEF VALVE ESCAPE PIPING SYSTEM The boiler safety valve escape pipe shall be led to the atmosphere 15 near the top of the stack so discharge will be clear of operational areas. Each boiler drum outlet safety valve shall be fitted with an approved type slip joint connection at the valve outlets to prevent any undue strain or reaction on the safety valves. A section of stainless steel flexible interlocked hose shall be fitted around the slip joint. 20 The flexible hose shall be fitted with flanged end connections so that steam cannot leak out into the Machinery Space when the safety valves blow. The discharge from miscellaneous steam relief valves, 690 kPa (100 psig) and above, shall be combined into a single line and led to 25 the atmosphere through a separate escape pipe, arranged in a manner similar to the boiler safety valve escape. The discharge from miscellaneous steam relief valves, below 690 kPa (100 psig) shall be piped directly to the bilges in such a manner as not to endanger personnel, motors, or other equipment. 30 5. FUEL OIL TANK HEATING COILS Each heavy fuel oil day and storage tank shall be fitted with heating grids distributed over the tank bottom with the steam inlet adjacent to the tank suctions. Valves controlling the steam supply to and condensate return from each tank shall be conveniently grouped in 35 the machinery space. The amount of heating surface to be provided shall be as follows: 63-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Day tanks .07 square meters (0.75 square feet) for each 907 kg (ton) of fuel in the tank (assume tank to be 95% full) plus .09 square meters (one (1) square foot) of coil surface for each 6 square meters (60 square feet) of tank exposed to the sea and air and abutting ballast tank (if any). 5 Storage tank .03 square meters (0.30 square feet) for 907 kg (ton) of fuel in the tank (assume tank to be 95% full) plus .09 square meter (one square foot) of coil surface for each 6 square meters (60 square feet) of tank exposed to the sea and air and abutting ballast tank (if any). 10 In addition to the heating surface noted above, a spiral heating coil, continuing approximately one square meter, ten (10) square feet of heating surface, shall be installed around high and low suction tail pipe. Grids of the coil type shall be made continuous with hreavy welded 15 sleeves, without the use of fittings. Flanged joints will not be per- mitted inside of tanks. The grids shall be installed approximately 102 mm (4 in) above the tank bottom and shall be securely fastened to the ship's structure with substantial bolted and/or welded clips. Thermostatic valves shall be installed in the steam line to the 20 heating coils in each fuel oil settling tank. The thermostatic valves shall be provided with cut out valves and a valved by-pass. The valve in the by-pass line shall be of the needle or plug type. Steam for the fuel oil tank heating coils shall be supplied from the auxiliary steam system. Individual tank drains shall be combined 25 in drain manifolds and led via a stop check valve to the drain main which shall drain to the drain-inspection tank. All necessary traps, strainers, by-passes, etc., shall be provided. 6. CARGO OIL TANK HEATING COILS Where required, each cargo oil tank shall be provided with heating 30 coils in accordance with the requirement of Section 68. The grids shall be made continuous with heavy welded sleeves, without the use of fittings. Flanges will not be permitted inside the hotwells. The grids shall be fastened to the ship's structure about 152 mm (6 in) below the top of the hotwells. 35 In lieu of the coils of grid type described above, coils fabricated in panel type construction will also be considered. Distant reading thermometers shall be provided for each tank. The return lines shall be necessary stop valves, traps, drains, etc., and shall be returned to the drain inspection tank. 40 63-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 64 MACHINERY SPACE VENTILATION 1 . GENERAL A mechanical ventilation system shall be provided for the machinery space. The system shall consist of motor driven single speed supply and 5 single speed exhaust fans with suitable Weather Deck inlets and outlets and all necessary duct work to supply the ventilation needs of the machinery space plus combustion air for the main engines, diesel gener- ators, and auxiliary boiler. Air velocity in main trunks or ducts shall not exceed 18 meters per second (3500 fpm) unless specifically approved. 10 Alternately, air for combustion may be filtered separately in a filter room and led to the engine via ducts and silencers without filter- ing all engine room ventilation air. The system shall be designed to keep a slight negative or positive air pressure in the machinery space, while operating at normal steam 15 conditions, depending on the main engine configuration and desires of the Owner. The requirements of Section 12 apply to this section. 2. FANS The supply and exhaust fans shall be of quantity and size as 20 described in the Machinery List. Where the fans take the air directly from the plenum, the weather, or the machinery space, they shall be fitted with bellmouths. 3. AIR SUPPLY Fresh air supply to the fans for the machinery space shall be taken 25 from separate intakes designed for minimum entrance loss, located so as to avoid short circuiting of exhaust air or stack gas. Non-return dampers shall be fitted downstream of each supply fan operating in parallel. Air shall be distributed throughout the engine room generally in proportion to the heat released, with the most generous amount going 30 to diesel engine air intakes and auxiliary boiler. A sufficient quantity of air shall be provided to the engine room space for ventilation purposes alone on the basis of two air exchanges per minuts. To this must be added combustion air for engines and boilers unless provided to these devices through separate ducts. 35 Air shall also be directed to all dies of the auxiliary boiler so as to assist in maintaining the casing temperature at allowable values. Average velocities greater than one meter per second (three feet per second) should not be necessary. 64-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION At operating stations, aisles and working areas, quantities of air shall be such as to limit the rise to 17°C (30°F). Air shall not dis- charge directly on steam piping, machinery or electrical equipment, nor shall it be required that air be directed at any equipment in order for it to function properly. 5 The air shall be delivered at the operating stations through adjust- able diffusers. Directional terminals shall supply not less than 0.7 cubic meters per second (1500 cfm) at not less than 10 meters per second (2000 fpm). Adjustable shutoff dampers shall be provided for each terminal. Remote damper operators shall be provided when dampers are not 10 accessible from floor or gratings. The central operating station shall be air conditioned in accordance with Section 12. A ventilation duct shall supply air to the central control station in event of air-conditioning failure. When the duct penetrates the machinery space boundaries, the duct shall be fitted with 15 an automatic fire damper. The duct shall be fitted with an (electric) heater. 4. AIR EXHAUST The exhaust fans shall draw air from the top of the machinery space and discharge it direct to the atmosphere through non-restrictive louvered 20 openings directed aft and protected from the weather. Automatic, non- return dampers shall be mounted in the discharge ducting of each exhaust fan operating in parallel. 64-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 65 AIR CONDITIONING REFRIGERATION EQUIPMENT 1 . GENERAL Cooling shall be supplied by means of circulating chilled water to air cooling coils installed in the ventilation systems supplying 5 conditioned air to the spaces defined in Section 12. The machinery providing the chilled water shall consist essentially of two motor driven refrigerant 12, 22 or 502 reciprocating type com- pressor condenser units together with necessary associated equipment. The above equipment shall be supplied as one of two packed units. The 10 equipment shall receive fresh water from the air conditioning circulat- ing system, cool the water and return it to the circulating system for distribution. The air conditioning refrigeration compressors, condensers and accessory appurtenances shall be in accordance with the descriptions and 15 requirements given for the same type of item in Section 66. Insofar as practicable, compressors shall be the same as those used for ship's service and cargo refrigeration, except as to the number of cylinders or speed. 2. REFRIGERATING MACHINERY 20 (a) Compressor Performance The compressor, motor, and condenser shall have capacity and performance characteristics for continuous operation at conditions equivalent to plus 2°C (35°F) saturated vapor suction temperatures and 41 °C (105°F) condensing temperature. 25 (b) Refrigerant Circuits and Loads The refrigerant system, as far as practical, shall be designed for automatic operation and shall be capable of maintaining design cooling water temperatures to within + 5°C (+ 1°F). There shall be two separate identical, refrigerant circuits so 30 arranged and valved that the chilled water of either circuit, or both circuits (as needed), may be utilized to serve the load. Both circuits will be needed to serve the maximum load. Means shall be provided for manual operation and adjustment at the machines by the operator. The compressor controls shall be arranged 35 so that the machines can be started and stopped from the console, but only if the local control is in the automatic position. 65-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (c) Air Conditioning Water Circulating System Two circulating pumps shall be arranged to circulate chilled water from the chilled water cooler, or hot water from the hot water con- verter, to the air cooling or heating coils in conformance with the requirements of Section 12. The pumps shall be located in the vicinity 5 of the compressors. The converter and chillers shall discharge into a manifold to completely mix the water from the two coolers before distri- bution to the system. The return lines shall be similarly arranged. The chilled or hot water system shall consist of a main from the discharge manifold to the coils and returns to the suction manifold. 10 The compressor controls shall be interlocked with their associated chilled water pump controls so that the compressor cannot be started if the pumps are not running. (d) Fresh Water Chillers The chillers shall be of the two circuit straight tube type, 15 with refrigerant in the tubes and water in the shell. The design shall be based on an outlet temperature of 5°C (41 °F), an inlet temperature of 12°C (53°F), a suction temperature of 2°C (35°F) and a maximum water velocity in the tubes of 1.8 m/sec. (6 ft/sec). Tubes shall be of copper with a minimum diameter and thickness of 16 mm (5/8 in) x #18 20 BW6. Steel shall be used for the tube sheets and shell with cast iron for the heads. The coolers shall be provided with inlet and outlet thermo- meters for the water and a connection for inserting a thermostatic device into the chiller so that the compressor will automatically stop to 25 prevent freezing. 3. MISCELLANEOUS TOOLS AND EQUIPMENT The same as in Section 66, but duplication of tools and equipment is not intended. 4. SPARES See Section 86 of this Specification. 65-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 66 SHIP'S SERVICE REFRIGERATION 1 . GENERAL (The following specifications shall be complied with when the ship's stores refrigeration spaces are of the permanently installed 5 type with the machinery located in the engine room. Consideration will be given to other arrangements such as portable refrigerated boxes with self-contained, air-cooled condensing units as indicated in Section 27, Art. 3.) A ship's service refrigerating system designed for the direct 10 expansion of refrigerant 12, 22, or 502 shall be provided for the compartments indicated on the arrangement plans. All equipment except the condenser circulating pumps shall be designed for completely automatic operation and shall preferably be of the package type. All "high-side" equipment shall be supplied by the 15 manufacturer as one (preferably) or two packaged units, complete with refrigerant piping and a holding charge of refrigerant. 2. REFRIGERATED COMPARTMENTS The refrigerated compartments shall be located and sized as per the arrangement plans. The temperature and methods of cooling shall be 20 as follows: Loading Compartment Temp °C (F) Temp °C (F) Methods of Cooling Vegetables & Fruit 2 (35) 2 (35) Air Cooler Dairy 2 (35) 2 (35) Air Cooler 25 Meat, Fish & Frozen Food -18 (0) -9 (15) Air Cooler Thaw (vestibule type) Approx. 4 (40) Infiltration from Freeze Room 30 The temperature specified shall be maintained when the surface temperature is 38°C (100°F) on all bulkheads and decks, except on those decks exposed to sun, and decks and bulkheads adjacent to machinery spaces, where the temperature shall be 49°C (120°F). When the bulkheads are adjacent to other ship's stores refrigerated spaces, the temperature 35 shall be that of the refrigerated space, however, no credit shall be taken for a negative heat gain. 66-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 3. REFRIGERATING MACHINERY (a) Compressors Two air cooled multi cylinder, single acting, marine type, compressors shall be provided. Each compressor shall have ample capacity to "pulldown" the refrigerated compartments to design temperatures 5 within 72 hours after loading. The refrigeration capacity of the com- pressors shall be based on 41°C (105°F) condensing temperature. Refrigerant suction returns shall enter the cylinder directly without passing through the crank case. The compressors shall have automatic unloading, starting and capacity adjustment. Each compressor shall have 10 its own gage board, mounted off the compressor, with all the gages, pressure switches and alarms as required herein. (b) Condensers Two horizontal shell and straight integral finned tube marine type condensers shall be provided. They shall be designed with a foul- 15 ing factor of 0.0005, a maximum water velocity of 2 meters per sec (6 feet second) and a maximum pressure drop of 34.5 kPa (5.0 psi). Condensing water shall be supplied at a rate not exceeding one cubic meter per hour (five gallons per minute) per ton of refrigeration at a compressor suction temperature of -4°C (25°F). The conditions shall 20 be sized for circulating water of 31 °C (88°F) with a condensing temperature of 41 °C (105°F). Tubes shall be rolled at both ends in drilled, reamed and grooved tube holes and shall be readily removable for repair. Tubes shall be of 90-10 Cu-Ni with a minimum diameter and thickness of 15 mm 25 (5/8 in) x #18 BWG. Steel shall be used for the shell with bronze or 90-10 Cu-Ni for the heads and tube sheets. Condenser heads shall be arranged so as to avoid disturbing pipe when the heads are removed. The condenser shall be protected by the use of replaceable zincs. (c) Liquid Receiver 30 Two liquid refrigerant receivers designed for marine service shall be provided. Each receiver shall have ample capacity to provide an adequate liquid seal and to store 120% of the total ship's stores system refrigerant charge. The receiver shall be complete with all necessary connections, liquid sump or double drains, baffles, and two 35 bulls eyes or a magnetic type liquid level indicator. (d) Liquid Strainers One angle type refrigerant liquid strainer with removable strainer basket, with a three valve bypass, shall be fitted in the liquid line to each refrigerated space ahead of the solenoid valve and in the 40 discharge from the receivers. 66-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (e) Liquid Dryers An angle type refrigerant dryer with renewable type cartridge, cut-out valves, and bypass for permanent installation shall be fitted in the liquid line from each receiver. The use of a combination dryer- trainer is permitted in this location. 5 (f) Liquid-Susction Heat Interchangers If the suction superheat is not too high, heat exchangers of welded steel construction shall be placed in the suction line close to the compressor. Each heat interchanger shall be fitted with a bypass. 4. REFRIGERATED COMPARTMENT EQUIPMENT 10 (a) Air Coolers The air coolers shall be of the self-contained type. If fans are belt-driven, the V-belt drive shall be protected by a guard and the motor mounting shall be adjustable. The cooling coils shall be of seamless copper tubing (minimum 15 of 15 mm x 88 mm)(0/2 in O.D. x 0.0035 inch wall)) with copper or aluminum fins 25 mm (.010 in minimum thickness), spaced not more than .2 per mm (6 per in). Copper coils and fins shall be elctro-tin plated after fabrication or be of enameled aluminum. The drip pan shall be esigned for marine service with drain connections piped to deck drains. 20 The fan capacity shall be sufficient to change the air once a minute with the compartment empty. Defrosting of compartments below 2°C (35°F) shall be auto- matically accomplished by electric heating built into the cooler coils and drip pans. The defrosting cycle shall be controlled by a clock 25 mechanism with a thermostat initiating the close of the defrost cycle. Pilot lights with identification label plates shall indicate when the efrosting heaters are in operation and shall be located in the passageway outside the refrigerated compartment. 5. CONTROLS 30 The following automatic control equipment shall be provided and nstalled. (a) Two dual pressurestats, or separate high and low pressure switches, which are adjustable. (b) Necessary controls for unloading and reduced capacity operation. 35 (c) One oil pressure failure switch for each compressor. 66-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (d) One automatic water regulating valve for each condenser. (e) One liquid line king solenoid valve for each compressor energized through the compressor controller so as to close when the compressor stops for any reason other than the opening of the low pressure cut out switch. 5 (f) One liquid line solenoid valve and contact maker with thermostatic element for each refrigerated compartment circuit. (g) One externally adjustable thermal expansion valve for each coil circuit in the refrigerated compartments. (h) One suction pressure regulating valve complete with pressure 10 gage and valve in the suction line from each refrigerated compartment. For ship's service, only those compartments above -1°C (30°F) require suction pressure regulating valves. Expansion valves and suction pressure regulating valves shall be provided with three valve bypass to permit continued manual operation 15 if they are cut out of the system. If a refrigeration control board is fitted, per Section 67, the ship's stores refrigeration alarms, defrosting pilot lights and motor controls shall be installed upon it. 6. REFRIGERANT PIPING SYSTEM 20 Piping shall be bent wherever practical to keep number of fittings to a minimum. Compressor stop valves shall be of the back seated type. The discharge line from each compressor shall be fitted with a relief valve and a stop valve specially designed for a refrigerant service. The relief valve may be built into the compressor. 25 The refrigerant piping system shall be carefully installed and every precaution taken to keep the system absolutely clean internally during erection. Before operating the compressors, the system shall be cleaned by means of a special surge drum containing a filter screen, and large quantity of dessicant, connected into the suction side of the 30 system. Prior to cleaning and pressure tightness tests, the system shall be dehydrated by means of special vacuum pumps capable of developing a vacuum of at least 100 kPa (29.6 in Hg) or 2°C (35°F) on a wet bulb vacuum indicator. A charging line shall be provided from the spare refrigerant bottle 35 storage area to the ship's service, air conditioning and cargo refrig- eration compressor units. The line shall be fitted with flexible connections at each end, or be a suitable length of flexible hose, fitted with bleed-off valves. 66-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 7. THERMOMETERS AND GAGES Thermometers shall be fitted for the condenser water lines to indicate the sea water supply temperature and the temperature of the water discharged from each condenser. Thermometers shall also be fitted on the compressor suction and discharge lines, and in the refrigerant 5 line downstream for the receivers. Refrigerant pressure gages, 89 mm (3 1/2 in) diameter, shall be provided for each compressor, one for indicating the suction pressure, one for indicating the discharge pressure and one for indicating the oil pressure. The gages shall be mounted on a board with the pressure 10 switches for the compressor, and the board shall be hung on the ship's structure, not the compressor. A pressure gage shall be fitted for each suction pressure regulating valve. One mercury indicating thermometer of the dial type with necessary 15 tubing shall be provided for each refrigerated stores compartment. Thermometers and gages for all other equipment shall be provided as required for the efficient operation of the system. 8. ICE CUBE MAKER An automatic, self harvesting ice cube maker suitable for marine 20 use, with stainless steel outer top and front, interior casing and up- lid, stainless steel locking bars with padlocks for front access panel and storage bin shall be provided. Standard commercial units may be used provided they are modified as necessary to meet the requirements of the United States Public Health Service. 25 An air cooled condenser will be acceptable for use on the ice cube maker provided there is adequate ventilation to insure proper operation. 9. MISCELLANEOUS TOOLS AND EQUIPMENT The following miscellaneous materials and equipment shall be provided: 30 (a) One complete charge of refrigerant for the system. (b) One complete charge of special lubricating oil for the compressor, including necessary make-up oil for the system. (c) One set of any special tools required for proper examination 35 of apparatus. (d) One special halide leak detector, complete with fuel container and tubing for locating leaks in the freon system. 66-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (e) One flexible refrigerant and oil charging connection. (f) One hand oil pump if filling must be done under pressure. (g) One motor operated vacuum pump shall be provided, suitable to dehydrate the system as required in subpart 6 herein. This pump shall not be in addition to any supplied in accordance with the requirements of Section 67. 10. SPARES See Section 86 of this Specification. 66-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 67 CARGO REFRIGERATION— DIRECT EXPANSION SYSTEM 1 . GENERAL The plant shall be so designed and installed that the cargo refrigeration system will be controlled from the engine room at the 5 Refrigeration Control Board and, except for emergencies, there will no need for personnel to enter the cargo refrigeration compartments or fan rooms while at sea. The Control Board shall be equipped in accordance with requirements of Section 95. While loading the expansion valves and thermostats will be adjusted manually for the correct carrying tempera- 10 ture. Fine adjustment of the compartment thermostats shall be made from the Refrigeration Control Board. The plant shall be complete in every respect, to comply with the latest methods for carrying refrigerated cargo at any temperature from minus 23°C (minus 10°F) to plus 10°C (plus 50°F). 15 All equipment, except the condenser circulating pumps, shall be designed for completely automatic operation and shall be capable of maintaining compartment temperatures to within + 5°C (+ 1°F). Cargo compartments shall be cooled by a recirculated air system comprised of finned coils, motor driven fans, and suitable air ducts. 20 Provisions shall be made for ventilating all compartments as specified in Section 12. The cargo refrigeration compressors, condensers and accessory appurtenances shall be in accordance with the descriptions and require- ments given for the same type of item, Section 66, except where 25 specified otherwise. Insofar as practicable, ship's service cargo and air conditioning compressors shall be identical except as to the number of cylinders or speed. 2. REFRIGERATION LOADS (a) The duty of the plant is to maintain the required temperature 30 in the refrigerated compartments under any of the cargo loading conditions stated below and with refrigeration loads calculated on the same basis as required for ship's stores by Section 66. The volumes given in the capacity tables are based upon dimensions taken face to face of the inside of the insulation. Product volumes shall be calculated with due 35 consideration given to stowage factors, required air circulating space, access ways and any space occupied by air cooling and circulating equipment. The outside air shall be taken as 38°C (100°F) and 80% relative humidity. Pulldown of the entire cargo shall be accomplished within 72 40 hours with all compressors operating. 67-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Condition #1— Room Temperature -23°C (-10°F) Products—Meat or quickly frozen fruits or vegetables in a completely frozen condition loaded at -7°C (20°F). No fresh air to be supplied. Condition #2--Room Temperature 2°C (35°F) 5 Products—Fresh fruit or vegetables loaded at 29°C (85°F). Fresh air to be supplied after pulldown at a rate of two gross volume changes per hour. Condition #3 — Room Temperature 10°C (50°F) Products— Fresh fruit or vegetables loaded at 29°C (85°F). 10 Fresh air to be supplied after pulldown at two gross volume changes per hour. Condition #4— Any combination of the above conditions (c) Capacity Tables Hold Condition Capacity Cu. Ft. 15 3. REFRIGERATING MACHINERY Cross connections with the units described in Section 65 and 66 shall be provided where practical and advantageous. Each compressor shall have a minimum capacity of refrigeration tonnage as stated in the Machinery List when operating at a suction temperature of -32°C (-25°F) 20 and condensing at 41°C (105°F). The motors for each compressor shall be selected on the basis of the horsepower required at 2°C (+35°F) suction temperature with condensing water supplied at a rate not exceeding 1 m3/hr (5 gpm) per ton of refrigeration. 4. REFRIGERATED COMPARTMENT EQUIPMENT 25 Each refrigerated compartment shall be provided with a cold air diffuser unit of the vertical built-up surface type. Diffuser cooling coils shall be constructed in accordance with the requirements of Section 12, except that they shall be electrotin plated after fabrication. The coil free velocity shall not exceed 3 meters per second (550 30 feet per minute) at maximum fan speed. The diffuser units shall be enclosed in a sheet metal casing and shall include cooling coil, built-on drain pans, fan section and dogged access plates for inspection and cleaning. Construction of casing and drain pan shall be at least of 12 gage steel, hot dipped galvanized after 35 construction or have an epoxy coating (Devran 215 system or equal). The pan drain shall be provided with splash baffles and with non-clog screens of non-corrosive wire mesh on the drain connection(s). The 67-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Condition #1 — Room Temperature -23°C (-10°F) Products--Meat or quickly frozen fruits or vegetables in a completely frozen condition loaded at -7°C (20 °F). No fresh air to be supplied. Condition #2--Room Temperature 2°C (35°F) 5 Products— Fresh fruit or vegetables loaded at 29°C (85°F). Fresh air to be supplied after pulldown at a rate of two gross volume changes per hour. Condition #3— Room Temperature 10°C (50°F) Products—Fresh fruit or vegetables loaded at 29°C (85°F). 10 Fresh air to be supplied after pulldown at two gross volume changes per hour. Condition #4— Any combination of the above conditions (c) Capacity Tables Hold Condition Capacity Cu. Ft. 15 (Insert values to suit cargos carried) 3. REFRIGERATING MACHINERY Cross connections with the units described in Section 65 and 66 shall be provided where practical and advantageous. Each compressor shall have a minimum capacity of refrigeration tonnage as stated in the 20 Machinery List when operating at a suction temperature of -32°C (-25°F) and condensing at 41 °C (105°F). The motors for each compressor shall be selected on the basis of the horsepower required at 2°C (+35°F) suction temperature with condensing water supplied at a rate not exceeding 1 np/hr (5 gpm) per ton of refrigeration. 25 4. REFRIGERATED COMPARTMENT EQUIPMENT Each refrigerated compartment shall be provided with a cold air diffuser unit of the vertical built-up surface type. Diffuser cooling coils shall be constructed in accordance with the requirements of Section 12, except that they shall be electrotin plated after fabrication. 30 The coil free velocity shall not exceed 3 meters per second (550 feet per minute) at maximum fan speed. The diffuser units shall be enclosed in a sheet metal casing and shall include cooling coil, built-on drain pans, fan section and dogged access plates for inspection and cleaning. Construction of casing and 35 drain pan shall be at least of 12 gage steel, hot dipped galvanized after construction or have an epoxy coating (Devran 215 system or equal). The pan drain shall be provided with splash baffles and with non-clog screens of non-corrosive wire mesh on the drain connection (s). The 67-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION drain piping shall be trace heated to permit defrosting under all conditions. The fan shaft end bearings shall be of the ball or roller type while the intermediate bearings shall be of the split roller type to allow bearing replacement without withdrawing the fan shaft. 5 The design and quality of fabrication of the fans shall be equal to the fan requirements in Section 12. The fan capacity of each diffuser shall be sufficient to change the air once a minute with the compartment empty and when operating against the total pressure of the system. The fans shall be provided with two 10 speed motors, full and half speed reduction. Heating coils shall be provided in sufficient capacity to hold a compartment temperature 10°C (50°F) with an outside temperature of -18°C (10°F) and with fresh air added at the rate of 2 changes per hour. Heaters shall be located in, or on, the cooling units and the coils 15 shall be finned copper, electro tin-plated after fabrication and equal to the construction specified in Section 12. Heating coils shall be controlled by means of self-contained steam regulating valves of the modulating type, sensing discharge air temperature. Access shall be provided for inspecting and cleaning heating coil elements. 20 Air ducts shall be constructed of not less than #18 USSG galvanized steel, with approved type adjustable slots. Provision shall be made for distribution of supply air throughout the compartments such that 80% is discharged over the cargo below the deckhead and 20% discharged vertically down along the shell insulation and between the vertical battens where 25 the air may pass under the gratings and between the grating sleepers. 5. DEFROSTING Defrosting of the air cooler units shall be accomplished by electric heating elements built into the units and controlled from the Refrigera- tion Control Board. Pilot lights with identification labels shall be 30 installed in the passageway adjacent to the entrance to the box and on the Control Board to indicate when the heaters are in operation. Differential pressure gages, remotely read from the Refrigeration Control Board, shall be installed across each diffuser cooling coil to determine when defrosting is necessary. 35 6. AUTOMATIC CONTROLS Automatic control equipment shall be provided and installed in accordance with the requirements of Section 66 and as otherwise specified in this Section. 67-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 7. MANUAL CONTROLS Hand valves will be provided as follows: (a) Refrigerant hand valves 28.6 mm (1 1/8 in) O.D. and smaller shall be diaphragm packless type with forged brass bodies with integral seats, phosphor bronze and stainless steel diaphragms, stainless steel 5 springs, disc or mi carta, nylon or teflon and screwed bonnets. Provi- sion shall be made to insure prompt and positive opening of the valve whether the pressure is above or below the seat. (b) Hand expansion valves shall be of the same construction except that they shall be of the needle type and shall have replaceable 10 seats. Seats shall be of stainless steel; discs of nickel copper alloy. (c) Refrigerant hand valves of 35 mm (1 3/8 in) O.D. and larger shall have bronze solder type bodies with integral seats, bolted bonnets, replaceable discs of brass with lead antimony alloy insert, suitable stem packing and gasketed steam seal caps. 15 (d) Refrigerant purge, drain and charging hand valves 15 mm (5/8 in) O.D. and smaller shall be of the same construction and style as refrig- erant hand valves 30 mm (1 1/2 in) O.D. and smaller except for screwed outlet connection with seal cap. (e) The dial thermometers specified herein shall be located 20 adjacent to the controls. 8. REFRIGERATION PIPING The system shall be flexibly arranged so that each compressor may operate on separate systems during pulldown or normal operation and may serve any combination of compartments. Only one compressor unit shall 25 be permitted to operate on a piping system at any one time. The piping shall be installed in accordance with the requirements of Section 66. 9. THERMOMETERS AND GAGES Each refrigerated compartment shall be provided with a 115 mm 30 (4 1/2 in) dial type remote reading thermometer having a temperature range from -40°C (-40°F) to plus 43°C (110°F) located in or adjacent to the compartment in the vicinity of the local controls. Thermometers and refrigerant pressure gages shall be provided as per Section 66. 35 67-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 10. MISCELLANEOUS TOOLS AND EQUIPMENT The same as in Section 66, but duplication of tools and equipment is not intended. 11. SPARES See Section 86 of this Specification. 67-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 68 LIQUID CARGO SYSTEM (IF PROVIDED) 1 . GENERAL The following system shall be installed to carry the liquids described in the Table of Liquid Cargos below in the deep tanks as 5 indicated in the Capacity Tables. See Section 70 for pollution abatement requirements. 2. LIQUID CARGO HANDLING Each tank shall be fitted with a stripping well, a sounding and sampling tube located directly over the stripping well, tank cleaning 10 connections, a vent, remote reading thermometers (located on the cargo refrigeration control console) and a cargo pump connection to the stripping well . The entire system shall be designed so as to facilitate cleaning and the inspection by liquid cargo surveyors to the maximum degree with 15 minimum effort and shall be self-draining to the maximum practical extent. Ready means shall be provided for the local drainage, cleaning and inspection of any unavoidable pockets, such as in valves and pumps. The design of inspection openings shall be such as to minimize the effort required in their use and quick acting couplings, securing fittings, 20 shall be employed as necessary to obtain this objective. The weight of demountable inspection components shall be limited so that one man can handle them, or special fittings shall be provided for the use of lifting gear. All pipings, fittings, blank flanges, hoses and tank surfaces that 25 come in contact with the liquid cargo must be of material suitable for the cargos to be handled. The sampling line shall be led as directly as possible from the top of the cargo tank to the weather deck. The sampling line shall serve as the filling connection and the sampling and ullage connection and shall 30 be large enough to permit an air motor driven liquid cargo pump to be lowered into the tank, operate, and be removed without jamming or bind- ing. While in the tank, the pump's air supply, air exhaust and cargo discharge hoses shall be led through the sampling line. In addition to the air motor driven cargo pumps, portable electric 35 motor driven pumps shall be used to empty the tanks through a connection in the stripping well. The tank connections and access trunks in way of the tanks shall be arranged to accommodate the portable pumps. The pumps shall take suction via a length of hose connected to the tank and discharge to the weather deck via a hose led through the access trunks. 40 68-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Adequate lengths (suitable for handling) of flexible marine type hose, stowed in convenient locations, shall be provided for loading and unloading the liquid cargo. All hose connections shall be of the quick connect-disconnect safety type flange coupling with blank flanges. 5 3. TABLE OF LIQUID CARGOS Specific Viscosity Melting Flash Holding Pumping Gravity at C (F) Temp C (F) Point Temp Temp Cargo at C (F) (SSU) (Approx) C (F) C (F) C (F) (Insert values to suit cargos carried) 10 4. CARGO TANK CLEANING SYSTEM A cargo tank cleaning system, complete with heater, drain cooler, chemical tank and all necessary piping and fittings shall be installed. The fire pump in the machinery space shall provide sea water to the heater and pump from and to the chemical mixing and storage tank. Recirculation 15 of the chemically treated water from the tanks shall be accomplished by the cargo oil pumps. The tank cleaning system shall be equipped with two portable tank cleaning machines, complete with mounting adapters. Provisions shall be made for flushing and rinsing the tanks with fresh water through the tank cleaning machine connections to remove all 20 traces of tank cleaning chemicals and salt water. The heater and drain cooler shall be of the horizontal shell and tube type with sea water in the tubes and steam in the shell. The heads, tubes and tube sheets shall be of 90-10 copper nickel. The minimum tube diameter shall be 19 mm (3/4 in) with #16 BWG thickness. 25 The design of these units shall be based on a cleanliness factor of 75% maximum water velocity in tubes of 1.4 m/min (4.5 ft/sec) and a maximum pressure drop of 3.4 kPa (5 psi). 5. TANK HEATING SYSTEM The cargo oil tanks shall be heated by steam coils passing through 30 fresh water filled hotwells located beneath the tanks. The steam inlet to the tanks shall be controlled by an adjustable thermostatic valve sensing the liquid cargo's temperature. If required by the cargos to be carried, see Table of Liquid Cargos above, additional means of tank heating may be necessary. In such a case, 35 the tanks shall also be heated by circulating hot fresh water through portable coils installed in the tank. The water shall be heated by steam in a shell and tube type heat exchanger with aluminum brass tubes of 16 mm (5/8 in) minimum diameter and #18 BWG thickness. Tube sheets 68-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION shall be of naval brass and heads of cast iron. The design of this heat exchanger shall be based on a maximum water velocity of 1.4 m/min (4.5 ft/min) and a maximum pressure drop of 34 kPa (5 psi). The temperature of the liquid cargo shall be monitored at three levels, and the hotwell at one location, in each tank by temperature recording instruments on the Cargo Refrigeration Control Board in the engine room. 6. SPARE PARTS For spare parts see Section 86. 68-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 69 CARGO HOLD DEHUMIDIFICATION SYSTEM 1 . GENERAL If cargo hold dehumidifi cation is specified the following shall apply: 5 A complete automatically operated dehumidification system(s) shall be provided for preventing moisture damage to, or condensation of moisture on, cargo and internal structures of the dry cargo holds. Units using granular solid desiccant such as silica-gel, shall be furnished with replenishment desiccant equal to 15% of the unit's capacity and 10 shall have satisfactory means of compensating for settling of the desiccant to prevent process air bypassing the desiccant. The dewpoint temperature in any cargo hold shall be maintained at a minimum design depression -12°C (10°F) dewpoint below the surface temperature of the cargo or ship's structure. During rapidly changing 15 outside conditions, a short time drop to a -15°C (5°F) dewpoint will be permitted. The cargo hold dewpoint temperature shall be measured in the exhaust trunk and shall reflect the average of the different hold levels. The capacity of the dehumidifying unit shall be certified by the vendor as adequate for the requirements of the dehumidified cargo hold 20 or holds served as described above. Mechanical supply and natural exhaust systems shall be fitted in each hold, as well as means for recirculating the air in each hold. Recirculation dampers or valves with oilite bushings, pneumatically or electrically actuated from the wheel house and manually at the damper or 25 valve location, shall be provided to control supply, exhaust, recircu- lated and dry air independently to each hold. Four-way pneumatic control diverting switches or electric selector switches shall be used for this purpose. The dehumidification system(s), except for the distributing duct 30 work and hold air circulation fans, shall be furnished complete in all respects by one vendor and shall include all operational devices neces- sary for satisfactory performance of the plant. The design shall be such as to facilitate access to all working parts and shall be suitable for continuous duty. 35 The maximum temperature of the dry air leaving the dehumidifier shall not exceed 74°C (165°F). Adjustable louver damper and diverting air valve operator motors (pneumatic or electro-torque) shall be sized for a torque 100 percent in excess of actual requirements as established by catalog ratings. 40 69-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All steel parts shall be hot-dipped galvanized after fabrication or protected with a coat of inorganic zinc silicate, MIL-P-23236, Type I, Class 3. The requirements in Section 12 for the cargo hold air circulation system(s), fans (except that the performance and witness test require- 5 ments shall not apply to the wet and dry air fans), duct work, terminals, louvers, dampers, etc., shall apply to this Section. The dehumidification unit shall have a certified rating obtained from tests performed at or by an accredited laboratory. It shall be guaranteed that the dehumidifier will not entrain or 10 carry over amounts of desiccant into the dry air or wet air discharge streams which could be harmful in any respect. 2. DEHUMIDIFICATION UNITS (a) Individual Hold System The maximum power consumption per dehumidifier unit (one per 15 hold) shall not exceed 0.7 kWh (2500 btu) per pound of moisture removed if steam regeneration is used. The units shall employ a rotary desiccant carrier so arranged that internal bypassing of air between adsorption and reactivation air circuits is prevented. The dehumidifiers may be constructed of hot- 20 dipped galvanized steel or aluminum, specifications Federal QQ-A-250/2, H-14 and QQ-A-200/8, T6, of approved thicknesses. (b) Central System The regeneration steam consumption of the dehumidifying unit shall not exceed 0.7 kWh (2500 btu) per pound of moisture removed. 25 If two separate units are provided, they shall be intercon- nected to permit either to function for all spaces independent of the other in case of breakdown of one unit. Air supply to the dehumidifier shall be taken direct from the space in which the unit is installed. Adequate air supply to this space 30 shall be provided from the weather. Wet air discharge from the dehumidi- fier shall be direct to the weather. The cooling coils for the liquid desiccant type unit shall be constructed of hot-dipped galvanized steel sheets and fins of 70-30 or 90-10 copper nickel tubes with inlet water manifolds equipped with 35 clean-out plugs for chemically cleaning each individual tube. The steam coils for the liquid desiccant type shall be constructed of 70-30 69-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION copper-nickel with copper-nickel tube sheets. Density control shall be provided. All piping and fittings, spray nozzles, pumps and gages shall be suitable protected against any corrosive effect of the desiccant. Four-way pneumatic control diverting switches or electric selector switch control shall be mounted on the instrument control 5 console or panel in the wheel house or chart rooms to provide the following operations: Ventilation without dry air Ventilation with dry air Recirculation without dry air 10 Recirculation with dry air Means shall be provided for exhausting air direct to the weather from the cargo holds served. The hold damper house plenum assemblies if used, shall be furnished as a complete assembly, pre-tested and ready for operation 15 upon connection to the fan units. Pneumatic controls and systems shall be in full accordance with the requirements in Section 12. 3. INSTRUMENTATION (INDIVIDUAL HOLD AND CENTRAL TYPE SYSTEMS) The atmospheric and cargo conditions in the cargo compartments shall 20 be recorded by means of multi-point strip chart electronic recorders. The recorders shall be of a type that will satisfy the requirements for sensing temperatures in C (F) and dewpoint temperatures in C (F). The record for protection against "Ship-Sweat" shall be confined to a single recorder on which each of the cargo hold dewpoints will be tracked in a 25 printing sequence relative to the respective cargo holds; the same chart will also record the weather temperature, weather dewpoint and the sea temperature. The record for protection against "Cargo-Sweat" shall be confined to a separate recorder (similar to the "Ship-Sweat" recorder) on which the cargo temperature will be tracked in a printing sequence 30 relative to the respective cargo holds. In addition, this recorder shall track the average dewpoints of each cargo hold. The chart records shall employ color-coded numerals and/or symbols to facilitate visual detection of conditions in the cargo compartments, including cargo hold dewpoints, cargo temperatures, weather dewpoint, 35 weather temperature, sea water temperature and (for the central system only) dry air dewpoint. Converging color tracks will facilitate visual detection of approaching critical conditions in the cargo compartments. The above recorders shall be furnished as a complete prewired console mounted assembly. The remote control switches for operating 40 the multi-louver dampers or diverting valves shall be mounted on the 69-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION front panel of the console. Each circuit shall be identified by a fixed nameplate and each wire and pneumatic line shall be color-coded. The console shall be drip proof and shall have a parts drawer with flush type drawer pull and key lock. The weather station with aspiration fan for measured samples of 5 weather conditions, cargo hold dewpoint and cargo temperature sensing elements including all necessary dewcel draft shields, temperature probe boxes, receptacles and plugs shall be furnished. The entire package is to be a complete instrumentation system to satisfy the requirements to prevent damage to the cargo. A sufficient number of sensors shall be 10 provided in each hold to insure this. 4. APPARATUS PANEL BOARD (IF REQUIRED) An apparatus panel board complete with mounting brackets and name- plates, shall be provided at the dehumidifier unit for mounting gages, relays and other central components associated with the dehumidifying 15 unit. 5. SPARE PARTS See Section 86 for spare parts. 69-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 70 POLLUTION ABATEMENT SYSTEMS AND EQUIPMENT 1. GENERAL (a) It is the general intent of this section to specify appro- priate pollution control measures to be taken in the design and operation 5 of all merchant ships in order to protect and enhance the quality of the marine environment from ship-generated pollutants, such as oil, sewage, garbage and smoke. (b) All vessels shall be so equipped and operated as to prevent the discharge of oil into or upon the navigable waters of the United 10 States, adjoining shorelines and waters of the Contiguous Zone in such quantities as to cause a film or sheen upon or discoloration of the surface of the water or upon adjoining shorelines. (Implementation of Section 11 of the "Water Quality Improvement Act of 1970" as published in the Federal Register of September 11, 1970.) 15 (c) All vessels equipped with toilets and urinals shall be provided with marine sanitation devices designed to prevent the discharge of untreated or inadequately treated sewage into or upon the navigable water of the United States. (Implementation of Section 13 of the "Water Quality Improvement Act of 1970" as published in the Federal 20 Register on June 23, 1972.) 2. CARGO OIL TANK ON TANK VESSELS The size and arrangement of cargo tanks shall be such as to limit the oil outflow from tanks assumed to be breached by collision or ground- ing to a value of 30,000 cubic meters or 400 times the cube root of 25 the deadweight 400 DWT, whichever is larger, but in no case exceeding 40,000 cubic meters. The oil outflow shall be calculated in accordance with the Intergovernmental Maritime Consultative Organization (IMC0) Resolution A. 246 (VIII) adopted 15 October 1971 by IMC0 Assembly. Credit may be taken for reduction in oil outflow in case of bottom 30 damage when a cargo transfer system is installed as prescribed in Article 3(c). 3. CARGO PIPING SYSTEMS ON TANK VESSELS (a) Remote shut-down of all main cargo pumps shall be provided at the loading and discharge manifold on the deck, port and starboard, and 35 at the centralized cargo control station. (b) Quick closing valves with means of local control shall be fitted at the loading and discharge manifold. (c) To reduce the calculated oil outflow due to grounding, an emergency cargo transfer system may be installed having a high suction 40 70-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION in each cargo tank, and capable of transferring cargo oil from a breached tank to any other segregated ballast tanks or other available cargo tanks. The pipes for the emergency suction should be installed at a point 3 m (10 ft) below the load waterline, but not less than 6 m (20 ft) from the bottom of the tank. Manual control of these valves shall 5 be provided on the deck as well as remote control from the centralized control station. The requirements of this paragraph are not mandatory, except when this cargo transfer system is used to reduce the calculation for oil outflow. (By the use of this system larger tanks may be used.) (d) Means shall be provided to contain any oil spillage around 10 each oil loading and discharge manifold and oil transfer connection area. 4. BILGE, BALLAST AND CARGO/BALLAST SYSTEMS (a) General (1) All bilge and ballast systems shall be so arranged as to assure that all oily bilge or ballast water will be discharged either 15 overboard, through an approved oily water separator, or directly into a designated slop tank which decants the effluent to 15 ppm or to a shore ballast reception and treatment facility. (2) Cargo/ballast systems on tank vessels shall be so arranged to insure that oily ballast water or tank washing are: (1) decanted or 20 discharged overboard via an appropriate oil content meter; (2) retained on board for "Load-on-Top;" or, (3) discharged ashore to a reception and treatment facility. (3) Vessels shall be fitted with slop tanks having a capacity to regain on board all oily wastes and oily bilge slops that may accumu- 25 late while operating in the navigable waters of the United States. (b) General Cargo Vessel A 100% segregated ballast system shall be provided for ballast- ing and debal lasting of the designated segregated ballast tanks in order to maintain the vessel's stability characteristic in accordance with the 30 damaged stability requirements presented in Section 1 for one compartment flooding without the use of oily ballast in the fuel or liquid cargo tanks. Means shall be provided for both direct sea flooding and pump discharge to the segregated ballast tanks. The system shall be served by a clean ballast pump with standby service from a bilge and ballast pump 35 or a general service or bilge pump. At no time shall ballast water be placed in fuel tanks or cargo oil tanks. Remote liquid level indicators shall be provided at the ballast control station for all segregated ballast tanks. 40 70-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (c) Tank Vessels Tank vessels shall be designed to meet one of the three design alternatives described below: (1) All tank vessels shall be designed to allow for debal lasting and tank cleaning operations by means of the "Load-on-Top" 5 method. The method shall allow the oily ballast and tank washings to be pumped to a designated slop tank or tanks. All decanted ballast water discharged overboard shall not contain oil in excess of the maximum limits prescribed for the receiving waters. (2) All tank vessels not equipped to handle debal lasting and 10 tank cleaning operations by the Load-on-Top method shall be designed for segregated ballast operation. In such cases sufficient tankage for all weather operations in ballast condition shall be assigned exclusively for segregated ballast. (3) Alternatively, an effective oil/water separator system 15 of full flow capacity equivalent to at least one main cargo oil pump shall be installed with automatic shutdown or recirculation of effluent when the oil content of the effluent exceeds 15 ppm. (See Article 1(b)). (d) Oily Water Separators Approved separators installed in the bilge and ballast system 20 shall be capable of producing an effluent containing not more than 15 ppm. (See Article 1(b)). (e) Oil Content Meters An oil content meter shall be installed in each bilge, oily ballast and tank washing overboard discharge line. The oil content 25 meter shall be fitted with an alarm device set at a preset valve to shut-down the pump or operate an appropriate valve in the discharge line to recirculate the flow automatically when the oil content in the overboard discharge exceeds 15 ppm. The meter will be considered as meeting this standard of 15 ppm if the standard can be met in certified 30 laboratory tests. (See Article 1 (b)). (f) Shore Connection Discharge stations shall be fitted for the bilge and ballast system on the main deck, port and starboard, to enable oily bilge and ballast water to be piped to shore facilities. Remote control of the bilge and ballast pumps shall be provided at the discharge stations on the main deck. To enable flexible piping at shore reception facilities to be connected with the ship discharge pipe lines for residues from machinery 70-3 35 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION bilges, both lines shall be fitted with a standard discharge connection in accordance with the following table: Standard Dimensions of Flange for Discharge Connections Description Outside Diameter Inner Diameter Bolt Circle Diameter Slots in Flange Flange Thickness Bolts and Nuts: Quantity, diameter Dimension 215 mm ( 8 1/2 in) According to pipe outside diameter 183 mm (7 3/16 in) 6 holes 22 mm (7/8 in) in diameter equi -distantly placed on a bolt circle of the above diameter, slotted to the flange periphery. The slot width to be 22 mm (7/8 in) 20 mm (3/4 in) 6, each of 20 mm (3/4 in) in diameter and of suitable length 10 15 The flange is designed to accept pipes up to a maximum internal diameter of 125 mm (5 in) and shall be of steel or other equivalent material having a flat face. This flange, together with a gasket of oil- proof material, shall be suitable for a service pressure of 6 kg/cm^ 20 (85 psi). The steel materials used shall meet the material specifications of standard B 16.5 Steel Pipe Flanges and Flanged Fittings of the American National Standards Institute (ANSI). (g) Overboard Discharge Piping 25 Overboard discharge piping from oil /water separators and "Load- on-Top" operation shall be fitted with at least two shut-off valves as close to the shell as possible. 5. FUEL OIL SYSTEM All overflow piping in the fuel oil system discharging overboard 30 shall be fitted with an alarm with indicators at the filling station and control console. 70-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 6. SEWAGE TREATMENT AND LIQUID WASTE DISPOSAL SYSTEMS (a) General Any vessel equipped with toilets, showers, lavatories, laundries or a galley shall be provided with suitably sized holding tanks to retain the sewage and liquid waste while in port or in 5 restricted waters. In lieu of holding tanks an approved sewage treat- ment plant which will meet the requirements of the U.S. Coast Guard may be provided to handle human wastes. (b) Sewage Treatment Plant The design and operation of the sewage treatment plants shall 10 meet the standards of the Environmental Protection Agency and U.S. Coast Guard. Where sewage treatment plants are used to handle human body wastes only, holding tanks shall also be provided to handle other wastes (grey water). 15 The marine sanitation device shall be capable of discharging to dockside facilities. Provisions shall be made to facilitate internal cleaning. (c) Holding Tanks When provided, holding tanks shall be of sufficient capacity 20 to retain all accumulated drains from urinals, toilets, showers, lava- tories, laundries and galleys and shall be capable of holding 56 cubic meters (15,000 gallons) of accumulated sewage and liquid wastes, or have a five day capacity based on the total ship complement at .26 cubic meters (70 gallons)/day/person. When using recirculation or vacuum 25 flush systems, holding capacity for these low flow systems will be based on individual system requirements. Holding tanks for "grey" water where no sewage solids are discharged into the tank, shall only be fitted with manholes, air vents to the weather deck, an overflow to the sea above the deep water line, and all necessary piping connections. When organic 30 solids are discharged into the tank, air shall be supplied to the tank to keep solids in suspension. Each tank shall be fitted with means to discharge to dockside facilities. Provision shall be made to prevent the accumulation of noxious 35 and explosive gases in the holding tanks and vents. The tanks shall be equipped with manholes, air vents to the weather deck, an overflow to the sea above the deep load water line, and all necessary piping connections. All air vents that terminate above the weather deck shall be located where odors will not be objectionable. 40 70-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Sufficient air shall be supplied to the sewage holding tank in order to prevent the contents from becoming anaerobic and to keep the solids in suspension. A pressure regulator and shut-off valve shall be provided to control the air flow into the tank. The capacity of air required shall not be less than .7 cubic meters (25 cfm) at 34 kPa 5 (5 psig) per 28 m3 (1000 ft3) tank capacity. Each holding tank shall be fitted with a floatless type level indicator and a separate high level alarm. The remote level indicators and alarm annunciators shall be placed on the engine room control console. The level control electrodes should not be in direct contact with sewage 10 and the unit should be arranged for easy access and maintenance. On vessels where the engine room is aft, or where it is impractical to have the sewage system distributed throughout the ship, a holding tank or a small independent sewage treatment system shall be provided for the engine room toilets and lavatory drains. 15 Provisions shall be made for the use of water and steam for tank cleaning purposes. (d) Piping All liquid wastes from urinals, toilets, showers, lavatories and laundries shall be led to the sewage treatment tank. Sewage drains 20 shall be led to the treatment plant or holding tank independent of other drains. Shore connections fitted with a 102 mm (f ft pipe) shall be located on the main deck, port and starboard, to enable sewage and liquid waste to be pumped to shore facilities. (e) Pumps 25 Each sewage system shall be equipped with two (2) sewage pumps connected in parallel. The pumps shall take suction from the holding tanks or sewage treatment plant and shall be capable of discharging overboard independently of other drain lines and to the shore connection. The sewage pumps shall be of the non-clog marine type, suitable for 30 handling raw sewage and either sea or fresh water as required. 7. STACK EMISSION (a) General All stack emissions shall meet air purity standards established by the ports of call of the vessel, the standards of the San Francisco 35 Bay Area or the standards of New York City, whichever are the most restrictive for the operation intended. 70-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Smoke Indicator Each boiler shall be equipped with a combination visual -photo- electric smoke indicator which shall clearly indicate the absence or presence of smoke. The indicator shall be provided with an alarm which actuates when the smoke intensity exceeds the value established by 5 Article 7(a) above. The indicator shall be provided with an auto or semi-auto pressurized lens cleaning system to insure cleanliness of the lens. The indicator shall be visible in the vicinity of the Central Control Console. A recorder shall be coordinated with the smoke intensity alarm to record the duration of pollution above the standards 10 established by Article 7(a) above. 8. INERT GAS SYSTEMS All tankers over 101,600 metric tons (100,000 DWT) and having tank sizes greater than 10,000 cubic meters shall be equipped with an approved inert gas system to prevent tanker casualties from fire and explosion. 15 9. COLLISION AVOIDANCE RADAR All tankers must be equipped with a collision avoidance radar system which complies with the requirements of Section 94.4 of this specification. 70-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 71 TANK LEVEL INDICATORS 1 . GENERAL Tank level indicators of a type designed for marine service shall be provided to serve the following tanks: 5 All Fuel Oil Tanks All Fresh Water Tanks All Lube Oil Sump Tanks All Diesel Oil Service Tanks (including Emergency Generator Diesel (s)) All Liquid Cargo Tanks (where provided) 10 All Clean Ballast Tanks All Sewage Holding Tanks Tank level indicating systems may be of the electric, electronic, pneumatic, mechanical or combination types. Local and/or remote reading tank level indicators may be installed to serve the tanks listed above. 15 All tank level indicating systems shall be intrinsically safe types designed for marine service. Additionally, the systems and components shall be suitable for the particular application (i.e., compatible with fluids in the respective tanks and the environmental conditions which they shall be subjected to in actual operation). Components and systems 20 installed in cargo oil (where provided), fuel oil, lube oil and other tanks containing potentially hazardous fluids shall meet all applicable Regulatory Body requirements. The requirements of this Section are not intended to exclude necessary provisions for supplementary manual means of tank level sounding. 25 Testing of each tank level indicating system shall be in accordance with the system it serves. All tank level indicators subject to over- pressure shall be fitted with a device designed to prevent such over- pressure from being applied to the indicator. Such devices shall be so designed to assure that when overpressure is removed the indicators will 30 respond accordingly to measure the tank levels with the same degree of accuracy and reliability present before the occurrence of excessive pressure in the tanks. The instruments used for tank level indication may be powered electrically, pneumatically, mechanically, or combinations of any 35 approved energy source. The energy source should be easily replaceable and/or rechargeable with a minimum amount of special equipment or handling required. All devices shall be capable of operation in ambient temperature conditions above those encountered in normal operation and the environmental conditions associated with a corrosive marine atmo- 40 sphere. Means shall also be provided for the testing of the power source and the entire liquid level instrument. Safety of the device shall be an absolute requirement. The instruments shall also be designed so as to be easy to clean and maintain. 71-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The sensor, or that portion of the system located inside the tank, shall be capable of withstanding operational temperatures above the normal fluid temperature. Sensors shall be designed to function prop- erly without becoming fouled or clogged by repeated immersions in the fluid being measured. The size of the sensor shall be such that it will 5 not interfere with normal tank cleaning, inspection, or maintenance operations. Tank level indicating systems shall be designed so that all com- ponents may be installed or replaced, calibrated and maintained while the associated tanks are full and in service with the ship under way at 10 sea. The system must also be designed so that the heading up of tanks which is normal with the system specified does not affect the accuracy and repeatability of the level indicating system. When dial type indicators are used they shall have: A minimum effective scale length of 343 mm (13.5 in) plus or minus 6 mm (0.25 in); 15 a graduated scale length which subtends an angle of 4.19 radians (240°) for any tank indication; and shall be so designed to suitably withstand 1480 kPa (200 psig) overpressures without affecting calibration or repeatability of the instrument. Vertical or digital indicators shall be designed to provide the same readability and the same inherent degree 20 of repeatability and accuracy under the same conditions listed above for dial indicators. The primary criteria for any reading instrument shall be based on human factors considerations, i.e., safety of operation; legibility and clarity of the readout with minimum chance of error in interpretation (within reasonable practical limits) shall be the bench- 25 marks for approval of alternate indicating instruments not specifically delineated in these specifications. 2. ELECTRICALLY OPERATED INDICATING SYSTEMS Electrical and/or electronic type tank level indicating systems shall be designed to utilize the standard shipboard AC power source, 30 DC battery bus; self -genera ted power, or other approved sources pro- vided that such power sources are intrinsically safe where required in accordance with USCG requirements. Where applicable, the requirements stated in Sections 70, 85, 87, 89, 90, 95, 96 and 99 of these specifi- cations shall be used in the design, manufacture and installation of 35 the systems and their components. The above requirements also apply to combination systems (pneumatic-electric/electronic, mechanical -electric/ electronic, etc.) which may be installed. Electrical and/or electronic systems may be of the float (magnetic or mechanical), differential pressure, hydrostatic head, transducer or 40 alternate types suitable for marine service. Electrical or electronic instruments for use in hazardous locations, such as fuel oil tank level and cargo oil tank level sensors, shall be explosion-proof or intrinsically safe as required by the U.S. Coast Guard. 71-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION In general, the electrical/electronic tank level indicator shall consist of a sensing element, some form of transmitting device, asso- ciated relay devices and cable, and an indicating instrument (vertical, dial, digital readout, etc.) which perform the functions of: sensing the tank level, effectively compensating for variations in fluid 5 characteristics so as to provide the maximum practicable accuracy, transmitting the signal to the required number of local and/or remote reading instrument(s) , and displaying the tank level in a form useful to operating personnel. All components installed in the tanks shall not be affected by any liquid normally carried in ships' service or cargo 10 tanks. The system design shall be such that heading up of the tanks will not affect the repeatability and accuracy of the level indicating system. The indicating instruments or meters shall have easily read markings appropriate to the application and shall be semi flush panel mounted (where practicable) in a quantity per display panel as required for the particular application. 15 Independent audible and visual level alarms may be provided in conjunction with the level indicating systems where appropriate. Level alarms (if provided) shall meet all requirements of the Regulatory 20 Bodies and applicable sections of these specifications. Additionally, level alarm points shall be adjustable and shall be provided in adequate numbers as required for safe operation and control. 3. PNEUMATICALLY OPERATED SYSTEMS Generally, this type of level indicator shall operate on the hydro- 25 static principle whereby a head of liquid in the tank is balanced against a column of mercury or other indicating medium. Pneumatic indicators shall be air operated by air supplied from the ships' control air system except that the level indicator for the potable water tank(s) may be fitted with a hand pump in lieu of the compressed air supply. Sufficient 30 air stations shall be provided between the indicators and the control air system to provide reduced air pressure for operation of the indicators. Standpipes in pneumatic tank level indicating systems should terminate in an air bell so proportioned that liquid will not enter the 35 smallest gage sensing lines and so as to minimize gage error when the tank is filled rapidly. Pipe installed inside any tanks bearing cor- rosive products other than fresh water shall be Schedule 80 or equivalent corrosion resistant material. Pipes of ferrous material shall have steel sleeves at the tank penetrations. Downpipes in fuel oil tanks shall be 40 at least 25 mm (1 in) nominal ips. The sizing and configuration of pipe runs from the tanks to the indicating instruments should be compatible with the manufacturer's requirements. If possible, the copper tube lines for tanks should run one full deck above their respective tank tops. 71-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Each individual tank gage system shall consist of a manometer type level gage, air bubbler sight glasses, a cleanable orifice (if required), a standpipe, connecting tubing and such other equipment that is essential to efficient design and satisfactory operation. The gages shall be constructed so that the indicating fluid cannot be blown out. Necessary 5 traps, filters, needle valves, cleanable type orifices and facilities for system purging shall be provided as required. The testing of pneumatic tank level indicating systems shall be in accordance with the system which it serves (see Article 1 of this Section). The system design must be such that heading up of tanks which is 10 normal with the system specified does not affect the repeatability and accuracy of the level -indicating system. 4. MECHANICALLY OPERATED SYSTEMS Local and/or remote reading mechanical tank level indicating systems may be installed to serve the tanks listed in Article 1 of this Section. 15 The arrangement, location, and size of mechanical tank level indicators (if provided) should be appropriate for the particular application. The same criteria (in terms of repeatability, accuracy, safety, readability and environmental considerations) stated for the types of systems previ- ously specified shall apply to mechanical tank level indicating systems. 20 Generally, mechanical tank level indicating systems shall measure tank levels by transmitting the position of float devices (sensors), which are installed within pipes or protective shields, mechanically by means of reels and gears (or linkages) or alternate suitable arrange- ments to the indicating instruments. Indicating instruments shall have 25 easily read markings appropriate to the application. See Section 85 for detailed requirements for reading instruments associated with mechanical systems. See Section 95 for detailed requirements for electric remote readouts from mechanical tank level indicators. 5. ALTERNATE SYSTEMS 30 Even though the preceding articles concern three particular types of tank level indicating systems, consideration will also be given to alternate system designs and/or configurations or combinations of the systems previously described provided that the alternate systems meet the same requirements and exhibit the same degree of accuracy and relia- 35 bility as the systems described in the other Articles of this Section. In any case the system configuration and principle of operation should be consistent with the service or application. Tank level indication of sufficient accuracy for proper operation may be achieved by a simple graduated gage glass, mechanical float or marked petcocks in some non- 40 critical applications, whereas sophisticated remote level indicating systems with multiple readouts and alarms are required for other appli- cations such as cargo and ballast tank systems (where provided). The design and testing of alternate or combination tank level indicating systems shall be in accordance with the system which it serves. 45 71-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 6. TANK LEVEL INDICATOR PANELS All fuel oil indicators should be mounted on as few panels as practicable and should be visible from the fuel-oil filling control station, jn unattended machinery spaces and machinery spaces where the layout makes the above impractical, remote tank level indicators should 5 be mounted on the engine room console or in the engine control room in close proximity to the console. Critical water tank level indicators should be visible from the engine room control console. The lube oil sump tank level indicators should also be visible from the engine room control console. 10 Tank level indicator panels shall be of sturdy construction capable of withstanding stress and vibration encountered in marine operation. The panels shall be fabricated from steel, aluminum or other approved material. The materials shall be corrosion resistant, galvanized or equivalently treated to prevent corrosion. The panels shall be adequately 15 stiffened and/or supported. Gages shall be provided for each tank served, shall be of an approved type designed for marine service and be of sufficient size to be clearly visible from their respective stations (see Article 1). Scales shall be graduated as follows: 20 Service Scale graduations (ft, in) - cubic meters (barrels) (ft, in) - cubic meters (barrels) (ft, in) - tonnes (tons) (ft, in) - cubic meters (gallons) 25 Gages for liquid cargo tanks (where provided) shall be designed to accommodate the resultant head on the tank when filled with the liquid cargo of the highest density to be carried. These gages shall be pro- vided with special multiple scales, or alternate means of compensation, appropriate for the entire range of specific gravities required in 30 Section 68. Suitable operating instruction plates and identification name plates shall be fixed to each panel. 7. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and 35 shore based. Fuel Oil m, mm Cargo Oil m, mm Water m, mm Lubricating Oil m, mm 71-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 72 COMPRESSED AIR SYSTEMS 1 . GENERAL Three complete compressed air systems shall be provided, diesel engine starting, ship service and control air service. 5 2. DIESEL STARTING AND SHIPS SERVICE COMPRESSORS Three motor driven compressors shall be provided, two for diesel starting, and one for ship service systems. The compressors shall be of the two-stage, single-acting air or water cooled "V" or "W" type, with an air or water cooled intercooler (if required). Air intake filter 10 and silencer, automatic unloader, automatic start-stop pressure switch, self-contained lubricating system, belt guard and accessories shall be provided. Controls for constant speed, continuous operation, consisting of unloaders set to maintain the pressure within the determined range, shall also be provided. 15 The maximum speed of the compressors shall not exceed 900 rpm, nor shall the piston speed exceed 3.7 m/sec (725 ft/min). If belt driven, provision shall be made for belt adjustment by sliding motor rails or other suitable means. 3. CONTROL AIR COMPRESSOR 20 The control air system must be supplied with air containing 5 ppm or less, oil carryover and have a dewpoint of 2°C (35°F) at line pres- sure. The control air compressor shall be of the centrifugal displace- ment type with water seal. The pressure controls and unloading features shall be similar to 25 those specified for the ship service compressor. 4. AIR RECEIVERS There shall be a minimum of four receivers two or more receivers for diesel engine starting one for ship service air, and one for the control air system. Each receiver shall have a cubic capacity as shown 30 in Machinery List and shall be of welded steel construction with dished heads and shall be galvanized after fabrication. Each receiver shall be fitted with a pressure gage, safety valve, necessary connections, and hand holes for cleaning and inspection. The approximate time for the compressor operation to pump tank between pressure limits is one 35 minute with no use of air for engine starting or ship's service systems and with no normal use of air for the control air system. 72-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 5. AIR START PIPING Each starting air compressor shall be arranged to discharge directly to the main air start receivers. The main air start receivers shall supply starting air directly to the main engines. A separate line from the air start receivers shall 5 lead to a two valve station. This station shall supply starting air to the diesel generators. Provisions shall be made for charging the ship service air receiver and control air receiver via separate lines from the air start compressors through a reducing valve. 10 The diesel starting air system shall provide automatic standby service for the control air system through a crossover consisting of a solenoid valve, check valve, reducing valve (if necessary), and oil eliminator. The air from the diesel starting air system shall enter the control 15 air system just down stream of the control air compressor to take advantage of the dehumidifiers installed in the control air system. The solenoid valve shall be operated by control air receiver pressure; when the pressure in the receiver drops 69 kPa (10 psi) below the control air compressor start up pressure, the valve shall open. 20 6. SHIP SERVICE AIR PIPING The ship service air compressor shall discharge through a check valve and moisture separators to the receiver. The ship service air system shall be supplied from the ship service air receiver and shall distribute air to the following locations as 25 needed: Machinery space for general service, in addition to those listed below Each deck in machinery casing for general service On Main Deck at forward and aft ends of main deckhouse 30 Winch Motor Generator Rooms, after deckhouse if fitted, and each winch house Ship Service Generators Hydropneumatic pressure tanks Fuel Oil burner workbench 35 Lubricating oil purifier workbench Steering Gear Room Shaft Alley Engineer's Workshop Electrician's Shop 40 Emergency Generator Room 72-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Refrigerating machinery Diffuser Rooms, if fitted Fan Room Elsewhere as required One hose connection shall be provided at each boiler front for use 5 of air operated boiler cleaning tools. The air supply to these connections shall be not less than 32 mm (1 1/4 in) ips. Each ship service air outlet shall be fitted with a moisture separator and a hose valve. Where air is for cleaning purposes, such as in the workshops, an additional hose valve shall be installed with an 10 orifice upstream to reduce the pressure to about 270 kPa (25 psig). 7. CONTROL AIR PIPING The reduction of the moisture content of the control air shall be accomplished by passing the air through a self-contained, refrigerated air cooler via a check valve with a discharge air temperature of 2°C 15 (35°F). The air will be piped uninsulated to its receiver via a moisture separator. The moisture separator shall be conencted to a suitable drain to carry off the residual moisture. The self-contained refrigerated air cooler shall also be fitted with a trap connected to a drain. The control air system shall be supplied from the control air 20 receiver and shall distribute air of the previously specified quality, at the required pressure, for all pneumatically operated control valves and devices. 8. HOSE Eight 15.25 m (50 ft) lengths of approved type air hose shall be 25 supplied. Each hose shall be fitted with detachable couplings. Hose shall be stowed in galvanized hose racks in convenient locations in the spaces to be served. 9. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 72-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 73 PUMPS 1 . GENERAL All pumps shall be of a high commercial marine standard built in accordance to the standards of the Hydraulic Institute. 5 The pumps shall be as specified in the Machinery List, but in all cases the pumping equipment shall be suitable and adequate for the service intended. Where two or more pumps of the same size and type are specified for a particular service, they shall be duplicates. Where two metal parts, 10 not of cast iron, are in sliding contact they shall be of dissimilar metals. For cast iron parts of pumps in corrosive services which require disassembly when servicing pumps, through bolts or studs shall be used instead of cap bolts. In general, the use of through bolts and studs is required for securing pump parts where thread corrosion or seizure may 15 be expected in service. For horizontal units, except close coupled pumps, the pump and its driver shall be mounted on a common base of rugged construction. Dowels or fitted bolts shall be fitted where necessary to insure proper alignment. 20 All vertical pumps, including reciprocating, shall be entirely supported either by a horizontal foundation or from a vertical ship structure, but not both. Vertical pumps 1 hp and above shall be provided with substantial brackets to support the drivers and with bases for the units mounted on the tank top or with supporting lugs if mounted on the 25 bulkhead. Bases for pumps handling oil shall be provided with oil troughs and drains. Drains should terminate in contaminated oil tank if feasible. Each pump shall have a pressure gage connected on the discharge side and a compound pressure gage on the suction side, installed before the 30 stop valves. Suitable provision shall be made for using a portable tachometer to determine the speed of motor driven and turbine driven pumps. All pump connections 38 mm (1 1/2 in) and over shall be flanged in accordance with American National standards. Where pump nozzles are of 35 a different size than the connected piping, a tapered transition piece of adequate length shall be used. Casings for rotating pumps (except for small, motor driven, close- coupled pumps) shall be split so that the rotor can be removed without disturbing the driver or the suction and discharge connections. Pump 40 73-1: MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION components with large mating surfaces, shall be properly doweled and provided with jacking bolts for breaking joints. A vent shall be located at the top of the casing and a drain at the bottom. Heavy pump components shall have proper arrangements for the attach- ment of lifting gear. 5 Mechanical seals shall be provided for pumps where specified except for rotary types and those for vacuum service. For sea water pumps, to preclude problems with grit, sand and mud, filtration of sea water flushing should be provided. Where possible, pumps shall be balanced hydraulically. All pumps 10 shall be equipped with suitable thrust bearings to absorb any primary or residual thrust which may occur during operation or when the pump loses suction. Vertical motor driven units shall be designed so that the thrust load and the entire weight of all moving parts will be carried by a thrust bearing located in the driver or by a separate thrust bearing 15 mounted on the upper bearings contained in housings and removable as a unit with the pump shaft. Sleeve type bearings may be used with oil, grease or clean water lubrication only. Where water jacketing is supplied, jackets shall be formed by cored casting with no joints offering possibilities of jacket water leakage into the bearings. Bearing water 20 shields or slingers shall be provided. Special consideration must be given the bottom bearing of vertical pumps mounted on inner bottom to prevent bilge water from splashing into the bearing. Generally bearings shall be grease or oil lubricated, as sea water will not be allowed as a lubricating medium. Grease fittings 25 for bearings located below the floor plate level shall be provided with extensions so as to be clearly visible and readily serviced from the floor plates. Bearing lubrication shall be such to preclude the necessity of lubrication at short intervals. The following shall be furnished: a bill of materials with ASTM or 30 other commercial reference for all materials, characteristic curves showing the expected performance throughout each pump's operating range and the required NPSH where critical (i.e., for condensate pumps, auxiliary feed pumps and other pumps handling hot fluids near their flash points). 35 2. CENTRIFUGAL (a) General Centrifugal pumps shall be selected to operate at, or near, the maximum efficiency point on the head-capacity curve. The pumps shall 40 have non-overloading power characteristics and the driver rated horse- power shall at least equal the maximum power requirement of the pumpt at rated speed without allowance for a service factor. 73-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Construction Horizontal pumps of the coupled type shall be driven through flexible couplings. Close coupled pumps, i.e., those having both the motor rotor and impeller mounted on the same shaft, shall be of the heavy duty type 5 and shall be suitable for horizontal or vertical mounting with thrust bearings provided. Glands, where used, shall be of two piece construc- tion and gland studs shall be not less than 9.5 mm (3/8 in) in diameter. Suction piping connected to this type of pump must be arranged so the impeller can be removed without disturbing the suction and discharge 10 valves. Any salt water pump which has a suction lift or is located near the light draft water line shall be arranged for connection to the priming system or shall be of the self priming type. These pumps must be designed to operate dry during the priming period without damage. If 15 a priming system is fitted, the emergency bilge pump shall be connected to it. Where dry running is a pump operating mode, it shall be so specified as in the pump requirements. Vents on salt water pumps shall be fitted with a connection to 20 the bilge to permit continuous venting. Pumps having a capacity of 125 m /hr (550 gpm) and over and a discharge pressure of 30.5 m (100 ft) or more, shall not be of the close coupled type. Multi-stage pumps shall be fitted with case bushings. All 25 casings shall be fitted with case wearing rings and, where applicable, stuffing box throat bushings. Wearing rings and casing bushings shall be provided of differ- ent hardness than adjacent wearing parts. Impellers shall have removable wearing rings wherever practicable. 30 (c) Materials The materials for the component parts of the centrifugal pumps shall be as follows. Equivalent or superior materials may be substituted. 73-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Components Casings Impellers Shafts Shaft Sleeves Impeller Wearing Rings Case Wearing Rings Gland Water Seal Rings Stuffing Box Bushings Gland Studs and Nuts Packing Materials Service Comp. "G" or Aux. boiler feed con- Ni-Al-Brz densate and Sea Water Pumps Comp. "G", "M" Pumps handling fresh or Ni-Al-Brz, Duct- water ile Iron or CI ose Grained Cast I ron Comp. "G" or Fresh water pumps Ni-Al-Brz "S" Monel or Pumps handling sea Ni-Al-Brz water with discharge pressures 780 kPa (100 psig) and over Comp. "G" or Pumps handling sea Ni-Al-Brz water with discharge As approved or Monel with sleeve Steel with Sleeve, Stainless Steel "K" Monel, Stainless Steel , Bronze Same material as impeller Comp. "M" or Ni-Al-Brz Monel or Comp. M G" or Ni-Al-Brz Comp. "M" or Ni -Al -Brz Comp. "M" or Ni-Al-Brz Graphited Asbestos or Semi -Metallic pressures less than 780 kPa (100 psig) Sea Water Pumps Pumps handling fresh water other than Condensate Pumps with steel shafts All Services All Services All Services All Services All Services All Services 10 15 20 25 30 35 73-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Components Couplings Supporting Brackets and bases Bolting Material Materials Steel or as approved Cast or welded steel , ductile iron, or as approved Bronze, K-Monel steel Service All Services All Services S.W. Services All others The materials used for pumps shall be supplied to meet the requirements of the classification and regulatory bodies, where applic- able, and to meet the following commercial standards: 10 Material Ni ckel -Al umi num-Bronze Composition "G" Bronze Composition "M" Bronze S-Monel K-Monel 500 Stainless Steel "18-8" Shaft & Sleeve 416 12% chrome Diff users & Diaphragms Ductile Iron Cast Iron 3. ROTARY PUMPS Commercial Specification ASTM B148-71, CA No. 955 ASTM B584-73, CA No. 905 ASTM B584-73, CA No. 922 QQ-N-288 Composition D QQ-N-286 ASTM A296 ASTM A 58 2 ASTM A296 ASTM A296 ASTM A395 ASTM A445 ASTM A536, Grade 60-40-18 MIL-I-24137, Class A ASTM A48, Class 30 ASTM A278, Class 30 15 20 25 (a) General Rotary pumps shall be of the helical -screw, herring-bone-gear, vane or cam type. Preferably pumps shall be direct coupled to drivers but where necessary may be provided with reduction gears. Where the pump is internally lubricated by the fluid pumped, wearing parts shall be of such design and materials that the pump may be operated safely for short periods when pumping liquids of non-lubricating character. 30 35 73-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Construction Bearings shall be ball or roller bearing type, except that pumps with internal bearings may have bearings of the sleeve type. Anti-friction bearings shall be of the sealed type, except when lubri- cated by the fluid pumped, and shall be designed and sized to have a 5 minimum service life of 20,000 hours. If the pump is to be used for pumping non-lubricating fluids or fuel oils, bearings and timing gears, if fitted, shall not be located in the fluid being pumped. Stuffing box packing glands shall be of the split type. Replaceable liners or bearings shall be fitted on helical- 10 screw type pumps. The materials for the component parts of rotary pumps shall be as follows. Equivalent or superior materials may be substituted. Casings Steel or Ductile Iron Timing Gears (if 15 required) Steel or Ductile Iron *Rotors Steel, Ductile Iron or Cast Iron *Shafts Steel Gland and Gland Studs Steel Gland Nuts Brass 20 Stuffing Box and Gland Composition "M" or Ni-Al-Brz Bushings (where used) Composition "M" or Ni-Al-Brz *Note: Material shall be capable of withstanding the fluids to be pumped. The materials shall be in accordance with subpart 2(C) of this 25 Section. 4. FUEL OIL BOOSTER PUMPS The fuel oil booster pumps shall be of the positive displacement type designed to pump diesel oil and heavy fuel oil with a viscosity up to 1.485 Pa.s (7000 SSU). The rated capacity shall be as specified for 30 heavy fuel oil at 24.0 m Pa.s (120 SSU) while the horsepower shall be calculated at 1.485 Pa.s (7000 SSU). Although the fuel oil system shall be designed so that there is a positive head at the inlet of the pump, the fuel oil pump shall be capable of 33.76 kPa (10" Hg) lift with diesel fuel and 50.7 kPa (15" Hg) lift with heavy fuel at 1.485 Pa.s 35 (7000 SSU). 5. FUEL OIL TRANSFER PUMP The fuel oil transfer pump shall be of the two speed positive displacement type and shall develop rated capacity at specified head 73-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION with an oil viscosity of 96.0 mPa.S (450 SSU) when operating at full- speed with horsepower requirement calculated at 636.5 mPa.S (3000 SSU). During low-speed operation, pumps shall develop rated capacity at speci- fied head with an oil viscosity of 636.5 mPa.S (3000 SSU); horsepower requirements shall be calculated at 1.485 Pa.S (7000 SSU). The design 5 suction lift shall not be less than 5.7 kPa (15" Hg) at full-speed and 67.5 kPa (20" Hg) at low-speed. 6. LUBE OIL SERVICE PUMPS Lube Oil Service Pumps shall develop rated capacity while pumping oil with a viscosity of 25.5-92.4 mPa.S (130-500 SSU) at specified head. 10 The pumps shall be capable of operating with a suction lift of 50.7 kPa (15" Hg) with 2% air entrainment. The lube oil pumps shall be of the rotary type. 7. MAIN SEAWATER PUMPS The pumps shall be of centrifugal displacement type, vertical, 15 single stage, motor driven fluid pumped seawater. 8. ENGINE FRESH WATER COOLING PUMPS The pumps shall be of centrifugal displacement type. Vertical, single stage, motor driven, fluid pumped fresh water. 9. PISTON COOLING PUMPS (if provided) 20 The pumps shall be of centrifugal displacement type. Vertical, single stage, motor driven fluid pumped fresh water. 10. INJECTION FUEL VALVE COOLING PUMPS (if provided) The pumps shall be of centrifugal displacement type. Vertical or horizontal, single stage, motor driven fluid pumped fresh water. 25 11. DISTILLING PLANT PUMPS The distilling distillate pumps and the brine overboard discharge pumps shall be fitted with flanged vent connections, except where pumps are of self priming. 12. PRIMING PUMP 30 If required, an automatic central priming system of the vacuum control type shall be installed. The priming pump shall be of the centrifugal displacement type and shall have a sealing water tank and a vacuum tank which shall be welded steel construction, galvanized after fabrication. 35 73-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 13. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore based. 73-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 74 GENERAL REQUIREMENTS FOR MACHINERY PRESSURE PIPING SYSTEMS 1 . GENERAL This section contains the general requirements for all machinery pressure piping systems which shall be used in conjunction with the 5 requirements of the Regulatory Bodies and the standards listed in the Maritime Administration's SCHEDULE FOR PIPES, JOINTS, VALVES, FITTINGS AND SYMBOLS MA Plan No. S48-26-2, Rev. (latest). For detailed and/or specific requirements of a particular system, refer to the applicable Section which describes the system. 10 2. SYSTEM DESIGN System piping and associated components should be designed to provide adequate flow to auxiliary equipment. The use of automatic-type regulators and/or restrictive devices, such as orifices, in lines servicing auxiliary components, such as heat exchangers, shall be per- 15 missible for obtaining and maintaining operational conditions, providing such appurtenances do not impose undue restrictions, such as large pressure drops (necessitating increase in pumping power) and destructive erosion conditions. Orifices, where required, shall be incorporated at flanged joints. 20 The design of orifices shall be such that a portion of each protrudes beyond the incorporating flanged joint thereby indicating its presence and size, which shall be stamped thereon. All automatic type control valves shall be designed and installed to meet full operational requirements and permit local adjustment, 25 inspection and maintenance without removal from line. They shall also be designed to "fail-safe" with respect to the system's function. (Valve shall be designed to assume a fail position which will satisfy the requirements of system safety while affording continued operation). A self-cleaning "Y" or basket type strainer shall be incorporated 30 upstream of each automatic type control valve. Strainers, except those for oil services, in Machinery Spaces shall have accessible valves blow-off lines to bilge. Piping subject to boiler pressure shall incorporate double valved protection in vents, drains, test connections and in lines to and/or 35 between equipment being served. Cutout, isolation and/or stop type valves shall be incorporated in sufficient quantity for individual and/or sectional control of the various units of equipment, branch lines and mains (headers) for meeting operational conditions, and to facilitate full maintenance operations. 40 74-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Check type valves shall be incorporated wherever flow reversals would be detrimental to operation requirements. Stopcheck type valves shall be incorporated wherever flow reversals could flood a space. Wafer type check valves may be used on systems approved by the Purchaser. Manually operated valves shall be readily operable by one man, 5 directly or through mechanical advantage type operators. Trap selection and sizing shall be on the basis of intended service, service conditions, and a continuous flow capacity rate of not less than twice the maximum anticipated rate of condensation (at condensate temperature equal to steam temperature). Connecting pipe sizes shall 10 not constitute a basis for sizing traps. Constant flow drain orifices may be used where approved by the Purchaser. The maximum allowable velocities for the various systems' media, in conjunction with the line sizing, shall be based on pressure drop determined by pressure and flow requirements of incorporated equipment 15 and appurtenances within a system without imposing an unwarranted (economically) increase in the system's pumping facilities. Velocity of water, except sea water and/or brine, in constantly running systems shall not exceed 4.57 m/s (15 feet per second) free- stream velocity. Sea water and/or brine velocity shall not exceed K D, 20 where D is the actual inside diameter of the pipe in millimeters (inches), the velocity is in m/s (feet per second), and the value of K is 0.3024 (metric) or 5 (English). However, in no case shall this velocity exceed 3.66 m/s (12 feet per second). The velocity of sea water and/or brine at inlet nozzles of and within tubular heat exchanger units shall not 25 exceed exceed 1.83 m/s (6 feet per second). Diesel oil system velocity shall be limited generally to a maximum of 4.57 m/s (15 feet per second) for shipboard operations (suction, discharge and transfer). However, for "Taking On" and "Unloading" opera- tions the maximum allowable velocity shall be 7.62 m/s (25 feet per 30 second) . Lube oil "suction" velocity shall be limited to a maximum of 1.22 m per second (4 feet per second). 3. INSTALLATION Piping installation shall permit: free passage along walkways and 35 ladderways; free access to perform shipboard operational and routine maintenance; free access for, and to perform, cargo handling; and free access to all doors, hatches and openings covered by portable plates. Where impracticable for piping to be clear of removable plates, piping shall be made portable for easy access. 40 74-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION To facilitate inspection and maintenance (including tube or tube bundle withdrawal) on components having removable heads, the piping con- necting thereto shall be arranged to permit removal of heads without breaking more than the connecting flanges. Unavoidable low points and/or pockets shall be fitted with either 5 flanged or bossed drainage facilities suitable for the particular system involved. Drainage points requiring drainage only during start-up or during infrequent or intermittent operation in service such as soot- blower and those requiring relatively frequent manual drainage in service such as salt water defrosting systems and liquid cargo lines, shall be 10 provided with valved drains only. Other points requiring drainage only infrequently, in conjunction with maintenance, may be provided with screwed plugs. Where screwed plugs are incorporated they shall not be insulated and shall, in general, be brass for either ferrous and nonferrous materials. However, plugs exposed to sea water and/or brine shall be monel , while plugs exposed to temperatures over 208°C (406°F) shall be stainless steel Type 316. Pressure control stations (reducing or regulating), unless specifi- cally approved otherwise, shall consist, in the following order, of an 20 isolation valve, self-cleaning strainer with valved blow-off, automatic control type valve, isolation valve, pressure gage, and relief valve (where necessary). A single valved bypass line shall be incorporated, connecting upstream of the upstream isolation valve and downstream between the downstream isolation valve and pressure gage. 25 4. RESTRICTIONS No piping shall pass through refrigerated, medical, and/or predomi- nantly electrically equipped spaces, unless directly associated with and/or servicing such spaces. Such piping shall be of one length throug- out unless installation dictates otherwise, necessary joints shall be 30 either welded or brazed sleeved joints or otherwise shielded as approved. Piping conveying flammable media shall be routed to avoid being located over hot surfaces, unless adequately shielded, and shall be located at least 457 mm (18 in) from high temperature steam lines. Piping penetrations through non-watertight flats shall have water- 35 tight coaming, not less than 76 mm (3 in) high to prevent drainage to space below or piping to be welded directly to the flat depending upon service conditions. Piping penetrating integral hull tank tops, flats and decks shall be fitted with Schedule 80 pipe sleeves at all locations where such pipes 40 are subject to damage from corrosion due to standing water or from 74-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION physical abuse. Pipes shall pass through sleeves which are continuously welded on both sides of the plating. Sleeves shall extend 152 mm (6 in) above and 25 mm (1 in) below the plating. Pipes shall be continuously welded to the sleeve top and bottom. Pipe weldments for services such as feed pump discharge, fuel oil 5 service discharge, lube oil service supply and steam generator discharge shall be fitted with the consumable insert type backing ring. Butterfly type valves shall be suitable for use with all types of flanges and in locations requiring "shut-off" for joint "breakdown" for maintenance without interruption of service to the rest of the system(s) 10 shall either be of the drilled and tapped lub type, with fastenings to each mating flange or be equipped with an adjacent flanged spool piece connecting the equipment or flanged joint. Gate type valves shall not be used for throttling services, nor shall resilient-seated butterfly type valves be used where close 15 controllable throttling is mandatory. All globe type valves shall be of the regrindable type, and shall be incorporated with the system's pressure under the disc. Swing-check type valves shall be incorporated, where practical, in a fore and aft direction. 20 Except where otherwise specified, the designation of valve trim includes the following: stem, disc, disc nut, seat, back seating bushing and guides. Assembled valves and fittings, in lieu of manifolds, shall not be acceptable except where closely positioned valves are of greatly varied 25 sizes. Use of mitered joints or fittings shall not be permitted except where other types of fittings are not practical. The use of cocks in place of valves is not permitted. Drains from piping and equipment shall not be less than 12.7 mm 30 (1/2 inch) ips. Silver-base filler metals used in the brazing of ferrous and non- ferrous base metals shall conform to Specification MIL-B-15395. For the brazing of 90-10 copper nickel pipe to valves and fittings, grade IV silver-brazing alloy should be used with the pipe furnished in the 35 annealed condition. The brazing temperature should not exceed the annealing temperature of the base pipe material, but in no case should the brazing temperature exceed 704°C (1300°F) for 90-10 copper nickel pipe. 74-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Cap screws shall not be used for valve bonnets. 5. CORROSION PRECAUTIONS Piping conveying sea water, brine, and/or other corrosive media shall be protected from the effects of corrosion and/or corrosion- erosion by the adoption of the following: 5 (1) Extensive use of approved plastic pipe or tubing and synthetic rubber hose, as permitted in the requirements of the Regulatory Bodies. (2) Valves and fittings (except resilient-seated buttefly type valves and other approved lined or liner type valves and 10 fittings) in nonferrous piping runs shall either be bronze or material comparable to the applicable piping material. All gate valves in sea suction and overboard discharge lines shall have solid monel disc guide strips. The seats, discs, stems and other internal trim of all valves, 15 including reducing valves, exposed to sea water shall be monel or monel clad except that the discs of fire station hose valves shall be of approved molded composition. All valve stems shall be rolled monel . (3) Where joints of ferrous and nonferrous materials cannot be 20 avoided, a short "waster piece" at least 305 mm (12 in long) of extra-heavy steel pipe shall be installed between the dissimi- lar metal lines. However, no "waster piece" is required where a nonferrous line connects to a ferrous line having a diameter two or more times larger. Waster pieces shall be designed for 25 easy replacement and incorporated in readily accessible locations. (4) Turbulence of flow(s) shall be minimized to curb corrosion/ erosion by restricting the velocities with the specified limits; by elimination of abrupt changes of pipe diameters in piping 30 runs and connections through the incorporation of gradual transitions in diametral changes, and by the use of long-radius bends and fittings, sweep tees, and "Y" and lateral type fit- tings. To assure smooth flow within the pipe, the following should be avoided: misaligned flanges, pipes not finishing 35 flush with the flange face, protruding jointing material, weld or braze bead on the inside of the pipe, and in general, sharp changes of direction and pipe sections. Body passages in throttling devices shall be designed to provide gradual changes in flow direction. In addition, the 40 downstream cavity shall be as large as practical to permit dissipation of the issuing jet before making wall contact. 74-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION At points where direct impingement at close range does occur, and cannot be avoided, section thickness shall be increased to provide adequate material to withstand the additional erosive effect. All piping downstream of throttling devices shall have a straight run at least 10 times the pipe inside 5 diameter. 6. WHISTLE A whistle, steam or air operated, shall be provided, located on the stack, and incorporated as per the requirements of the Regulatory Bodies and the following: 10 (1) The whistle and its appurtenances, designed for shipboard installation, shall be of a size comparable to the vessel's tonnage, having an audible range not less than 4 miles in all directions on a calm clear day and/or a decibal rating at 100 ft. not less than 118. 15 The whistle shall be capable of instantaneous sounding at each actuation regardless of elapsed time since previous sounding and after several hours of exposure to sub-zero and/or snowy weather. (2) Either type of whistle shall generally be of the low- toned, 20 loose multi-leaf, diaphragm type and shall be of bronze con- struction, with phosphor-bronze diaphragm(s) and stainless steel internals. Valves and seating surfaces in steam whistles shall be hardened or stellited. (3) Controls, both manual and automatic, shall be provided as 25 described in Section 94. Should the vessel require a second whistle, consideration will be given to an electric whistle located forward, preferably on the foremast. 7. CLEANING All piping, piping appurtenances, and applicable equipment shall be 30 thoroughly cleaned after fabrication and prior to installation shipboard. After complete shipboard installation each system shall be thoroughly cleaned and flushed of all foreign matter with the applicable system's medium, or an approved substitute. System flushing shall be conducted at the applicable system's 35 maximum operating pressure and temperature, and above normal line veloc- ity. Line vibrators, of the temporary in-line and/or portable hand types, shall be employed in all applicable systems, particularly the lube oil servicing systems. However, prior to flushing operations, such units as auxiliaries, turbines, heat exchangers, control valves, etc., 40 74-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION having in-line mechanisms capable of trapping, or affected by the carry- over, of foreign matter, shall either be removed or blanked-off and bypassed. 8. IDENTIFICATION Systems, associated components and/or equipment piping and appur- 5 tenances shall be readily identifiable as to their identity, and as applicable: operational characteristic, service, direction of flowing medium, etc. Valve name plates shall be securely attached to all valves. Identification methods shall comply with the requirements of the Regulatory Bodies, consisting of one, or a combination of the following: 10 Label Plates: brass and/or metal photo process Stenciling and/or Color Coding: banding or sole 9. SPARE PARTS Safety or Relief Valves One spare spring of each size and type 15 Valve Diaphragms One set per valve Valve Springs One set for each five (5) identical reducing or modulating valves, or fraction thereof 20 Butterfly Valve Resilient Seat One spare of each size and type Gaskets and "0" Rings One spare of each size and type Whistle Diaphragm 25 One set per unit Whistle Spring One set per unit Waster Spool Piece One of each size 30 Strainers 25 percent spare baskets of each size and type, but not less than one. 74-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 75 INSULATION-LAGGING FOR PIPING AND MACHINERY 1 . GENERAL Where surface temperatures are normally between 52°C (125°F) and 66°C (150°F) and the omission of insulation will not adversely affect 5 operational deficiency, non-metallic lagging only may be applied, where necessary, to protect personnel from contact with hot metal surfaces. Insulated and fabric-lagged surface temperature shall not exceed 66°C (150°F); metal or metallic type lagging surface temperature should not exceed 52°C (125°F) when in areas susceptible to personnel contact. 10 Piping and units of equipment with design internal temperature of 150°C (300°F) and over or 10°C (50°F) and under shall be insulated from their supports or the supports insulated from the structures to which they are attached where the heat transmitted may be objectionable on the other side of the structure. 15 On piping and tubing sized less than 10 mm (3/8 in) ips, attaining 52°C (125°F) to 400°C (750°F) thermal insulating tape equivalent to MIL-I-15349, Type I, shall be applied where applicable for personnel protection. Insulation in way of supporting hangers shall be adequately 20 protected against crushing. For painting of surfaces before application of insulation and after application of lagging, see Section 14. 2. MATERIALS NOTE: Insulating or lagging materials which contain asbestos shall not 25 be used. (a) Insulating Materials Insulating materials, defined as materials applied to offer resistance to heat flow shall be of the following (or equivalent) for usage outlined hereinafter: 30 Low Temperature (-34°C to 52°C) ((-30°F to 125°F)) Cellular Glass Fed. Spec. HH-I-551, Type I & II Fibrous Glass MA 32-MA-3, MIL-I-16441E 75-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION *Foamed Plastics Flexible Rigid Fed. Spec. HH-I-573 MIL-P-15280, Type II MA 32-MA-4 MA 32-MA-8 Fed. Spec. HH-I-524 Mineral Fiber Fed. Spec. HH-I-558 Medium Temperature (53°C to 315°C) ((126°F to 599°F)) Calcium Silicate Fed. Spec. HH-I-523 Felt, Fiber MIL-I-23128 Fibrous Glass MA 32-MA-3 MIL-I-16411, Type II Mineral Fiber Fed. Spec. HH-I-558 Cellular Glass HH-I-551 High Temperature (316°C to 537°C) ((600°F to 999°F)) Calcium Silicate Fed. Spec. HH-I-523 Felt, Fiber MIL-I-23128 Fibrous Glass MA 32-MA-3 MIL-I-16411, Type II 10 15 Mineral Fiber Fed. Spec. HH-I-558 (538°C to 649°C) ((1000°F to 1200°F)) Calcium Silicate Fed. Spec. HH-I-523 Felt, Fiber MIL-I-23128 Fibrous Glass MIL-I-16411, Type II *N0TE: Foamed plastics having a freon base blowing agent shall not be applied to any freon piping. 20 25 75-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Lagging Materials Lagging, defined as the protective and confining covering or jacket placed over the insulating materials, shall be of the following (or equivalent): Brattice Cloth MIL-C-788 (-29°C to 260°C (-20°F to 500°F)) Fibrous Glass Cloth, tape and thread Metal Aluminum Nominal thickness, mm (inches) Steel , Sheet Hot-dipped galvanized Nominal thickness, mm (inches) PVC MIL-C-20079 ASTM B209 0.4 (0.016) Fed. Spec. QQ-S-775 0.35 (0.014) Fed. Spec. L-P-535, Comp. A, Type II (To be used in area where USCG restrictions regard- ing incombustibility are not in effect) (c) Adhesives, Coatings & Sealing Compounds Adhesives Bedding Compound Coating Compound Finishing and/or Insulation Cements MIL-A-3316 MIL-A-15199* MIL-B-19564 MIL-C-19565 Fed. Spec. SS-C-160 *Not applicable for adhering fibrous glass insulation and/or lagging. 3. APPLICATION (a) Piping Insulation In general, single layer type insulation shall be applied on piping having internal temperatures up to 260°C (500°F). For piping over 10 15 20 25 30 75-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 260°C (500°F) either single or double-layer insulation may be applied. Suitable expansion joints to permit thermal movement of piping, without opening of insulation joints shall be provided. In double-layer construction, the second layer shall be applied over the first layer so that all joints are staggered. 5 Straight runs of piping or tubing shall generally be insulated with molded or pre-formed type materials. Butt-end and longitudinal joints surfaces shall be buttered with an approved joint compound, not more than 1.5 mm (1/16 in) thick. On bends, elbows, etc., pre-formed or fabricated segments of 10 the same insulatjon on adjacent straight runs shall be applied. All joints shall be tightly fitted and cemented together with an approved joint sealing-adhesive compound. Where required for rigidity, usage of galvanized iron wire mesh or netting shall be incorporated. Insulating or insulating-finishing cements shall be applied to fill crevices and/or 15 smooth all surfaces, as required. Typical .9 meters (three foot) lengths of insulation shall be secured with No. 18 gage galvanized iron wire at three points on piping up to and including 152 mm (6 in) diameter and not less than four points on larger pipes--6 meters (two foot) lengths and less shall be 20 secured at two points. Application of a vapor barrier is not required on flexible (elastomeric) foamed plastic insulation, nor is lagging required except where such insulation would be subject to damage. Suitable antisweat type insulation shall be applied, where 25 required, and secured with heavy twine. Where piping or tubing passes through the galley and other humid spaces, the insulation shall be double layer, waterproofed outside of each layer. Antisweat insulation, other than flexible (elastomeric) foamed plastic type, shall be covered with either cloth or tape lagging secured 30 with an adhesive to form a moisture-proof finish. All insulation surfaces, including the outer surface(s), shall be coated with a vapor sealer at time of application, where applicable. THICKNESS TABLES Thickness 35 The minimum insulation thickness for -34°C to 13°C (-30°F to +55°F) surfaces, listed in TABLE "A" and TABLE "D", are based on usage of cellular glass material which does not preclude usage of other acceptable materials. 75-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION LOW TEMPERATURE PIPING INSULATION (-34°C to 52°C) ((-30°F to 125°F)) TABLE A THICKNESS IN MILLIMETERS (INCHES) OF INSULATION FOR PIPING Design Internal Operating Temperature C (F) Pipe Sizes Millimeters (inches) Column 1 Below -29°C (-20°F) Column 2 -29°C to 2°C (-20°F to 35°F) Column 3 Over 2°C (35°F) 100 and below below) (4 and 76 (3) 64 (2 1/2) 38 (1 1/2) 125 thru 200 (5 thru 8) 76 (3) 64 (2 1/2) 51 (2) 250 and above above) (10 and 89 (3 1/2) 76 (3) 51 (2) 10 NOTES: Refrigerant supply piping ahead of expansion valve need not be insulated where ambient temperature is less than 49°C (120°F), except where dripping may cause damage or discomfort. 15 Piping leading to and from refrigerated spaces shall be suitably insulated for reasonable distance from the spaces to prevent heat transfer. 75-5 LO LO O CM O co o CTi LO O CM C_> o 2: LO i — 1 — 1 CO I— < o _l 4-> ■ZD CO O 21 o t — i CM LO CO CJ3 2: UJ 1 — 1 2T _1 D_ o CQ 1 — 1 1 — 1 1— 1 1 — 1 D_ m 1— 1 1— Q_ UJ Ctl ra h- UJ D_ UJ o u_ o o lo o^ r— CTi CO LO o o -(-> +-> CJ> u_ o o o o LO o CM LO o u_ o o cr> cr> lo en CM «3" o o o u_ o o LO O o o CM «3" o u_ o o <^- Ol O CTi CM CO o o ■(-> +J o u. o o CTi O ^1- o i— CO o u_ o o 00 cr> «vt" CTi 1— CM o o +-> +-> o u_ o o co o a\ o CM O o O CTi CO CD cr> 1— o o 4-> +-> o u_ o o CM LO LO CM O) CD (OS c E I 1— 1 r- CD E N O «r- 2: CO CM CM CM CM CM , — , — r— , — r— ^ — •* * s *■ s ^— > *- N * s. f— CM CM CM CM CM CM CO CO CO CO 00 r— , — r— «3- ^1- «* 10 CO LO cr> CO LO LO LO lo VO L£> t~^ r^~ t^ 00 CM CM CM CM , — , — ,— , — ■X # s *- — ^ s — > * s t — ^ t — % 1 — 1 — CM CM CM CM CM CM CM CO CO on d) CO CO 1— 1— r— r— r— "^1- "=3" LO LO .e CO CO LO LO LO LO LO (C t— 3 (/) E 1 — 1 CM CM CM CM CM <4- O *■ — ^ *■ — , — % *- — n * — « *- — ^ 1 — r— 1 — 1— i — ^~ 1 — 1 — CM CM CM CO IO LO lo LO CO 00 CO CO CO ^~ r— r— CU CM CM CM CO CO CO CO CO LO LO LO E J*i O ■r* .E 1— , — (O ^ — ^ *• — ^ ** — ^ E CM CM CM CM •1— ■--^. ^^ "»•». ■v^ E r— 1— p^ r^ O 2: LO lo LO LO LO LO LO 00 CO CO 00 CM CM CM CM CM CM CM CO CO CO CO i_ CD -a ^ s E CO ^ — ^ S- Z3 S- S- O) cu cu -0 + LO +J > > E >. ^— s 3 CM CM CM + o3 + r— +-> 1— r— • s ^-^ * — . 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S- oo CO c 3 00 rO O S- r— a> ro 1 — o rO r— CJ CD 1— CO •i - ■ •r— o 1 o •1— co jx: CJ c O) -a a (J c O U c CL u .M +-> .C zc -a 00 -!-> o s_ o 3 Cl c c o c: ^ o c :=5 >, c S- C 00 *—-^ (V +-> ro >, C 1— ro _J Ll_ O UJ r> _1 LU Ll. _l LlJ u_ t— UJ (O ro CD r— E +-> ^ a E E Z3 3 CL O CD 3 o c CD * A^r CD czr i^ oo > ^Z Q s: LU CC aa^ueis IP1LMS [0JL ^UO 3 • nc i i i Cd DSL^I Nouvonddv yoiow iouinoo 91-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 92 LIGHTING 1 . GENERAL The ship shall be lighted throughout with incandescent and fluores- cent fixtures in accordance with the Illuminating Engineering Society 5 publication entitled "Recommended Practice for Marine Lighting" except as described hereafter. Fluorescent lighting of the rapid start type, where applicable, shall be used in all living and working spaces except as otherwise speci- fied. Fixtures arranged for less than 20 watts shall be provided with 10 low power factor ballasts and radio interference suppression in accordance with American National Standards Institute (ANSI), ANSI C82.1. The use of high power factor ballasts for fluorescent lights shall be considered, if desired. Fixtures for service areas, open decks, and spaces of similar nature 15 and uses, etc., where illumination of a high level is not an essential requirement, shall be incandescent type. Fixtures for floodlights may be of the incandescent and/or electric discharge type. All wheelhouse instrumentation shall have red dial illumination, either by back illumination with red filter or by dial illuminator and 20 red lamps, with the light of longer wave length ? than 5900 Angstrom Units and not greater in intensity than .34 candela/m (0.1 ft.-lamberts) controlled by dimmer rheostat. The dial illuminator shall be designed of polarized material, sufficiently transparent to project light for cross dial illumination and sufficiently rigid for satisfactory results. 25 Wheelhouse log desk and chart table lights shall be fitted with red filters. Wheelhouse and bridge wing indicator lights shall be controlled individually by means of series rheostats for varying the intensity of the light. The rheostats shall be housed in the same cases with the 30 lamps. Exterior lighting fixtures and receptables shall not be connected to branch circuits energizing interior lighting fixtures and/or receptacles. Fresh lamps shall be installed in each space immediately prior to 35 the illumination survey and all burned out, damaged or missing lamps shall be replaced at time of delivery of the ship. In lieu of the replacement, 100% of lamps or each type and size may be placed on board immediately prior to ships delivery. 92-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 2. EMERGENCY LIGHTING Emergency lighting, as specified in Section 88 shall be energized from the emergency lighting and power system. 3. ILLUMINATION LEVELS Lighting fixtures shall be installed in numbers, sizes and arrange- 5 ment in order to maintain in service at least the average lumens/m (foot-candle) values of illumination recommended by the Illuminating Engineering Society publication entitled "Recommended Practice for Marine Lighting" current issue. Areas not listed in the Illuminating Engineering Society "Recom- 10 mended Practice for Marine Lighting," shall be illuminated in a manner corresponding to a similar space listed. Supplementary illumination shall be provided for all desks, berths, mirrors, bulletin boards, transoms, etc., and be adequate for reading without discomfort. In work spaces, illumination shall be provided for 15 such items as gages and instruments, gage boards, control consoles, switchboards, bulletin boards, etc., so as to permit accurate readings from the usual operating positions. Galley and pantry sinks, work benches, power driven tools, desks, etc., in work spaces shall be provided with supplementary lighting on the work surfaces. 20 Illumination for the Engine Room Control Console shall be the maximum level necessary to maintain a visual gradient with the alarm, signal and indicating lights, to readily recognize the information cues from the normal operating positions. o Lumens/m (foot-candle) readings shall be recorded during a photo- 25 metric survey of the completed spaces for the first ship of a group wherever built. p Lumens/m (foot-candle) readings shall be such that when multiplied by a maintenance factor of 0.7, to allow for deterioration of lamps, fixtures and painted surfaces, their values will not be less than those 30 specified. 4. LIGHTING IN WORK SPACES The space below engine room gratings shall be adequately lighted and access means shall be provided for maintenance of the lighting installation. 35, Lockers shall be lighted by guarded watertight deck fixtures controlled by watertight switches located at entrances to these spaces. 92-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Lighting fixtures in galley shall be flush mounted and all wiring shall be concealed. Passageway lights, and lights in machinery spaces shall be controlled at local panel boards. Lighting in boatswain stores shall be controlled by watertight 5 combination switch and pilot light units located adjacent to and outside entrances to the respective spaces. Switches for control of lights to be located within refrigerated spaces with pilot light units located outside the compartment entrances. Fixtures in refrigerated areas shall be suitable for use in minus 18°C 10 (0°F) boxes. 2 wire, 3 pole, grounded weather deck receptables for portable lights shall be provided in accordance with Regulatory Body Requirements. 5. LIGHTING IN ACCOMMODATIONS Flush mounted lighted fixtures shall be provided and all wiring 15 shall be concealed where lined ceilings, acoustical or marine veneer ceilings and/or bulkheads are installed. In accommodation areas and offices with single accesses, local single pole switches shall be provided. In those areas with multiple accesses, three or four-way switching shall be provided at each 20 entrance. All plates for switches and receptacles shall be made of brass, stainless steel or aluminum. A fluorescent mirror light of at least 20 watts with switch and convenience outlet shall be provided over each toilet cabinet and mirror 25 mounted over lavatories in toilets, showers, and staterooms. A berth light of at least 14 watts (fluroescent) with switch shall be provided for each berth. Table lamps and desk lights with switches shall be provided in staterooms, lounges, etc. Utility receptacles for personal use in bathrooms, staterooms and 30 for general use such as for desk fixtures, decorative table lamps, portable devices, etc., shall be provided. 6. EXTERIOR LIGHTS (a) General Lights on the bridge deck and in other areas which cause 35 interferences to navigation shall be controlled by switches located in 92-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION the wheel house. Exterior lights, required at sea and visible from ahead, shall be shielded. Exterior lights required to be extinguished prior to sailing shall be controlled from not more than three central locations. (b) Gangway and Lifeboat Lighting 5 Two hundred-watt, portable, projected type fixtures with local control shall be provided port and starboard to illuminate the gangway and accommodation ladder. Lights shall be mounted on brackets so con- structed that they may be swung outboard for overside lighting and rigidly locked in position. Stowage shall be provided for these lights 10 when not in use. One 500 watt projector type floodlight, mounted on a bracket so constructed that it may be swung inboard for deck lighting or out- board for overside lighting and rigidly locked in either position, shall be installed for each lifeboat or liferaft. 15 (c) Weather Deck Lighting Floodlights, mounted on house structures and masts or king posts, shall be provided to adequately illuminate the weather decks for operation of cranes, stowage and lashing of deck cargo. Weather deck floodlights shall be equipped with cords and water- 20 tight plugs and shall be plugged into watertight receptacles. Exterior lights shall be installed around each hatch coaming, to provide illumination for safe deck access and inspection of cargo and container lashings. For tank vessels consult applicable Regulatory Body 25 Requirements. 7. NAVIGATING AND SIGNAL LIGHTS A running and anchor light system in compliance with applicable International and Inland Rules of the Road and Regulatory Body require- ments shall be furnished and shall be installed so as to permit compliance with the Rules. 30 A cargo loading light shall be provided if required by the applicable Regulatory Body. A navigating and signal light panel shall be installed in the wheelhouse. This panel will combine a semi-automatic telltale navigat- ing, light section for audible and visual control of the masthead, port, 35 starboard, range and stern lights and a signal light section for control 92-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION of the anchor, not-under-command and towing lights. Additional mast mounted signal light arrays with appropriate wheelhouse switch panel shall be furnished as required to comply with trade route requirements. Two (2) fixed masthead towing lights and one (1) yellow aft towing light, single filament, and two (2) portable not-under-command (N-U-C) 5 lights together with halyards and fittings for rigging and two assemblies into position shall be provided. These lights shall be energized from watertight receptacles, suitably located, connected to the navigating light panel located in the wheelhouse. All lights shall be of brass, bronze, aluminum or stainless steel 10 construction. The navigating lights shall be of the two compartment type and the signal lights shall be of the single compartment type. One (1) marine type, signaling searchlight shall be provided. The signaling light shall be either a fixed unit mounted on top of the wheelhouse, or a semi-fixed unit with arrangements for quick mounting 15 at either bridge wing of the navigating bridge. A switch and receptacle in conformance with Suez Canal Authority "Rules of Navigation" shall be provided for vessels navigating the Suez Canal. A Suez Canal searchlight shall not be provided. For vessels navigating the Panama Canal a Panama Canal Steering Light shall be provided in accordance with Regulatory Body Requirements. 8. MISCELLANEOUS 20 Bracket fans in working spaces that are not air conditioned shall be 40 cm (16 in) oscillating, quiet blade, marine type suitable for direct connection to the ship's wiring system without the use of port- 25 able cords and outlets. Control switch shall be mounted in the base and shall be readily accessible. Window wipers shall be installed in the wheelhouse. Wiper motors shall be 115 volt 60 Hz and each shall be controlled by a separate rheostat and cut-off switch at wiper. 30 9. SPARES Spare parts shall be provided in accordance with the requirements of Section 86. 92-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 93 RADIO EQUIPMENT 1. GENERAL REQUIREMENTS The plan development and installation of all equipment including antennas shall be accomplished under the guidance of authorized repre- 5 sentatives of the respective equipment manufacturers. All final checks and adjustments shall be made by an authorized representative of the manufacturer of the particular equipment involved, and where possible, prior to official ship's trials. Antenna layout plans shall be submitted for approval well in advance 10 of the installation. Both radio and radar manufacturers shall review the antenna arrangement plans for concurrence of location and size of all antennas and appropriate notation indicating their acceptance shall appear on the drawings. The radio manufacturer shall provide radio noise suppression filters 15 in the radio room on the input supply feeders to electronic equipment. The filters shall be designed to attenuate radiated and conducted noise frequencies not less than 60 decibels over the frequency range of 150 to 23,000 kHz. Between frequencies of 15 to 150 kHz, the noise levels shall be attenuated sufficiently to preclude interference with satisfac- 20 tory reception when the radio receivers are tuned to maximum sensitivity. Electronic equipment energized from an ac power source shall be so designated that input is accomplished through an isolation transformer, which may either be a step-up, step-down or one-to-one ratio type, 25 incorporated as an integral part of the equipment, and shall be shielded to suppress interference. All radio equipment shall be energized by an independent feeder from the emergency switchboard. 2. RADIO EQUIPMENT (a) List of Principal Components The radio installation shall consist of the following, as applicable: 1 - Antenna System *1 - Main Radiotelegraph Transmitter 35 *1 - Reserve Radiotelegraph Transmitter with Reserve Power Supply *1 - High Frequency Radiotelegraph Transmitter *1 - Automatic Keying Device 93-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION *Time Signal Jackboxes and Loudspeaker, radio-chart room circuit * 1 - Main and Reserve Radiotelegraph Receiver - Medium and High Frequency Receiver - Auto Alarm - Clock, MA Spec. 18-MA-3, Type IV, Class A - Bridge- to-Bridge Radiotelephone - ^lery High Frequency Radiotelephone with Selective Ringer - Medium/High Frequency Single Side Band Transmitter - Survival Craft Portable Radiotelegraph Transmitter-Receiver - Emergency Position Indicating Radio Beacon - Teleprinter with Error Correction - On-Board Communication System (optional) - Satellite Communications Terminal (optional) *See Article 2(c) below. (b) Specifications Transmitters and receivers shall meet the following minimum specifications: Transmitters (1) Main radiotelegraph transmitter Output power Frequency range Emission 500 watts 405-525 kHz Al, A2 (2) Reserve radiotelegraph transmitter Output power Frequency range Emission 25 watts 405-525 kHz A2 (3) Medium/High Frequency radiotelegraph transmitter Output power Frequency range Emission 500 watts 2-23 MHZ Al 10 15 20 25 30 (4) Medium/High Frequency SSB transmitter Output power Frequency range Emission 1000 watts 2-23 MHZ Al, A3A, A3H, A3 J 93-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (5) \lery High Frequency radiotelephone transmitter Output power 20 watts Frequency range 156-162 MHz Emission F3 Receivers 5 (1) Main radiotelegraph receiver Frequency range 100 kHz-30 MHz Emission Al , A2 (2) Reserve radiotelegraph receiver Frequency range 15-650 kHz 10 Emission Al , A2 (3) Medium/High Frequency receiver Frequency range 2-30 MHz Emission Al , A3A, A3H, A3J, FSK (4) Very High Frequency radiotelephone receiver 15 Frequency range 156-162 MHz Mission F3 The maximum application of solid state circuitry including utilization of integrated circuits, plug-in type electronic boards and/ or modular design, is preferred in lieu of discrete-wired equipment. In 20 addition, the incorporation of synthesized control, limited to frequency coverage of the maritime mobile bands, is encouraged and will be given consideration where applicable as an alternative to crystal controlled equipment. (c) Installation 25 The radio console assembly shall include the items designated by an asterisk listed under subparagraph (a) above, together with the necessary ancillary items required for complete operation and super- vision of the radio equipment, except storage batteries and remote alarms. The transmitters and receivers shall be designed and electric- 30 ally interconnected to provide a complete self-contained unit with the various controls on the front of the panels within the convenient reach of the operator. The yery high frequency radiotelephone equipment, located in the radio room, shall be fitted to operate from the wheel house. 35 93-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The single sideband radiotelephone transmitters and receivers shall be located and controlled in the radio room with remote extension facilities at the wheel house. The radio console shall be placed in the radio room so that the typewriter carriage moves fore and aft to prevent it from sliding 5 due to the roll of the vessel. 3. FACSIMILE A facsimile recorder capable of reproducing weather charts, etc., received by radio on standard 19 inch sheets, shall be provided in the radio room. The system shall consist of a radio receiver, antenna, a 10 discriminator and a printer. The printer shall be of the continuous roll type with automatic start and stop feature, and operate at 60, 90, and 120 rpm. The radio console high frequency receiver shall be connected as a backup to the facsimile receiver. 4. ANTENNAS 15 A radio antenna system including the main, reserve, medium and high frequency SSB/CW transmitting, medium and high frequency receiving, loran, direction finder sense, facsimile, VHF radiotelephone, television and broadcast antennas complete with lead-ins and all necessary hardware shall be provided. 20 The main transmitting and receiving antenna shall consist of either a top loaded vertical antenna or an inverted L-type. Where the inverted L-type is provided, it shall be supported by masts over or nearly over the centerline of the vessel. The reserve transmitting and receiving antenna shall consist of 25 either a top loaded vertical antenna or an inverted L-type and shall also serve as the auxiliary receiving antenna. Where the inverted L-type is provided it shall be supported independent of the main antenna. The lead-in trunks shall be self-draining fiberglass reinforced 30 plastic trunk and shall be designed and installed so that water will not ground any part of the radio installation, accumulate in the trunk, or leak into the radio room. Standing rigging in the vicinity of the antennas, including the direction finder loop, shall be sectional ized by insulators. 35 Antenna switching for the receivers and transmitters shall form an integral part of the console. 93-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION An effective signalling interlock system shall be provided as part of the radio and direction finder installation. This system shall be so designed that the direction finder cannot be operated before the radio operator has acknowledged a signal which will indicate that all antennas are connected as they were at the time of calibration of the direction 5 finder. A whip antenna system complete with tuner shall be provided for operation over the frequency range 1.6-24 MHz. The direction finder "sense" and loran shall share the same antenna which may be either a vertical whip or wire type with provision for 10 switching in the chart room. The VHF radiotelephone antenna shall be a fixed omnidirectional type having minimum gain of 3 db suitable for shipboard installation and designed for transmission/reception in the marine VHF radiotelephone band. 15 The television antenna shall be a fixed omnidirectional type suitable for shipboard installation to cover VHF channels 2 to 13 and UHF channels 14 to 83. Television outlets shall include impedance matching transformers. An antenna/amplifier distribution system with combination antenna, 20 ground and single power outlets to provide for convenient operation of AM, FM and TV receivers in all staterooms, lounges, recreation rooms and messrooms, shall be installed. This system shall cover the TV, 500 to 1600 kHz, 4 to 25 MHz and 88 to 108 MHz broadcast radio bands. A 5-way receptacle arranged with color coded terminals, including connector 25 cables and plugs for the radio antenna, and power supply terminals including a ground terminal which will not permit the insertion of a standard appliance plug, shall be provided in each space. Cover plates shall be marked to indicate application of each receptacle. 5. TOOLS AND SPARE PARTS 30 Tools and spare parts shall be supplied in accordance with Federal Communications Commission rules, and any additional tools or spares recommended by the manufacturer, but shall not duplicate the tools required by the Federal Communications Commission. They shall include 100% spare vacuum tubes and 10% solid state devices. All spare parts 35 shall be clearly marked with the manufacturer's designation number and values. Spare printed circuit cards shall be supplied in accordance with manufacturer's recommendations. The spare parts and tools for the radio batteries shall be supplied 40 in accordance with requirements of Section 96. 93-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 94 NAVIGATION EQUIPMENT 1 . GENERAL The installation of all equipment shall be made by the Contractor under the guidance of authorized representatives of the respective equip- 5 ment manufacturers except for the simpler equipments such as the whistle control, rudder angle indicator, propulsion shaft revolution indicator and electronic fog bell and gong. All final checks and adjustments shall be made by the authorized representative of the manufacturer of the particular equipment involved prior to official ships trials, except 10 that radio direction finder may be calibrated during the trial trip. Instruments that are weather-exposed or may be subject to salt spray, dirt or moisture under any operating condition may comply with requirements in Section 95. All signal and control relays, other than for power applications, 15 shall comply with requirements in Section 95. AC operated electronic equipment shall be energized through a shielded-type isolation transformer as described in Section 93. All navigational equipment and instruments in the wheel house and on the bridge wings shall be provided with red filtered dial illumination 20 as specified in Section 92. All electronic equipment including antennas shall comply with requirements in Section 93. 2. ECHO DEPTH SOUNDER The echo depth sounder equipment shall provide direct readings at a 25 visual indicator and at a recorder. The indicator shall be located in the navigation control section of the bridge control console. It shall have a range from 18 meters to 1100 meters (6 feet to 600 fathoms). A shallow water alarm feature shall also be provided. 30 The recorder shall be located in the chart room. It shall have a maximum range of 1430 meters (780 fathoms). The optimum transducer location consistent with accessibility, as recommended by the manufacturer, shall be provided. The location of the transducer shall be clearly noted on a tag attached inside the indicator. 35 Two transducers shall be provided, where required, on large ships. 94-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A zero depth adjustment and means by which the recorder chart can be marked, shall be provided. The system shall be energized from 115 volt ac interior communica- tions panel board in the wheel house. 3. ELECTRONIC POSITION FIXING SYSTEM 5 Loran C and one of the following automatic long-range electronic navigation systems shall be provided: (a) Omega, with optional computer. (b) Satellite navigator, with computer and heavy-duty teleprinter. The equipment shall be energized from the 115 volt ac interior 10 communications panel board in the wheel house. 4. RADAR/COLLISION AVOIDANCE SYSTEM A radar system including a collision avoidance display and alarm system shall be installed. The following measures to ensure a high reliability should be taken 15 into account by the manufacturer in the design and throughout development and production. High reliability components should be incorporated into the design whenever these are available. Components should be derated by generous safety factors, permitting 20 them to operate at much less than continuous ratings, and making allow- ance for deterioration and value drifting during the life of the equipment. Full recognition should be given to and allowance made for the hostile marine environment, particularly on weather-exposed hardware. 25 This should also be considered for bridge electronics equipment where the environment is salty, moist and frequently corrosive. Where practicable, component durability should be improved by controlling the environment within the equipment cabinet, such as by insuring a moderate and constant temperature, isolation from shock, 30 vibration, RFI and voltage transients, and by minimizing dirt and moisture contamination. Unproven circuits should receive special consideration. Only those which work well and minimize the number of components to achieve a function should be incorporated. 35 94-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Field failure experience should be fed back into the design to enhance reliability as the design matures. Modular design should be employed to such extent as will facilitate rapid and effective repair. Test points in the circuit where significant voltages or waveforms 5 are present should be brought to the front pane or chassis edge to permit their measurement without removal of the chassis or extension of the module. Easy access to facilitate on-board maintenance should be incorpor- ated into the mechanical design. 10 Printed circuit assemblies and chassis assemblies should permit identification of each circuit component. Self diagnostics should be provided where their inclusion does not cause a decrease in reliability. (a) Radar Systems 15 Two systems, one main S-band (10 cm) and one auxiliary X-band (3 cm), both designed for surface navigational operation, shall be provided. The antennas shall be mounted on pedestals installed on a suitable mast high enough so that full presentation through 360 degrees 20 will be obtained without appreciable attenuation of signal in any sector. Disabling switches shall be provided to stop rotation of antennas and de-energize the radar transmitter prior to servicing. In addition, warning signs shall be installed, prominently visible from access paths to the antenna, warning personnel to operate the disabling 25 switches prior to entering the radar platforms. The following features although not necessarily all inclusive are applicable to both the main and auxiliary radar installations and shall be provided: (1) Main Radar - Plan Position Indicator - 400 mm (16 inch) 30 diameter scope (minimum) with relative bearing and gyro stabilized display. True motion (optional) with maximum scale at least 29 km (16 nautical miles) high persistence cathode ray tube having long integration time, so that small targets can be distinguished from sea return and 35 trails on moving targets are visible. (2) Auxiliary Radar - Plan Position Indicator - 250 mm (10 inch) diameter scope (minimum), with optional relative bearing or gyro stabilized display. (3) Reflection plotter and viewing hood. 40 94-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (4) Minimum 7 range scales. (5) Maximum scale at least 48 nautical miles. (6) Minimum range - 45 meters (50 yards) or less. (7) Electronic range marker rings, calibrated movable range ring and (2) azimuth scales (1 fixed) on periphery of 5 relative motion plan position indicator. (8) Range resolution, at least 45 meters (50 yards). (9) Bearing accuracy, at least + 1 degree. (10) Main Radar - Bearing resolution 2.5 degrees when provided with a 3.7 meter (12 foot) antenna. 10 (11) Auxiliary Radar - Bearing resolution at least 1.6 degrees when provided with a 1.8 meter (6 foot) antenna and 0.6 degrees with a 3.7 meter (12 foot) antenna. (12) Head-up stabilized relative motion and North-up stabilized presentations. 15 (13) Dial illumination shall be by means of variable indirect red light, and be sufficient to easily read azimuth scales and obtain cursor bearings during day or night operating conditions. (14) Antennas shall be designed for continuous operation in 20 185 km/h (100 knot) relative wind, and mast withstand without damage winds up to 278 km/h (150 knots). The radar transmitter receivers shall be energized from the 115 volt A-C interior communication panelboard in the whedlhouse. Power to the main antenna motors shall be 440 volt, 3 phase, 60 Hz and to the 25 auxiliary radar antenna motor may either be 440 volt, 3 phase, 60 Hz (preferred), or 115 volt, 1 phase or 3 phase, 60 Hz, energized from the emergency switchboard bus. (b) Collision Avoidance System A collision system designed as a supplement to both surface 30 search navigational radars, via interswitching shall be installed. The system shall provide unattended monitoring of all radar echoes and auto- matic audio and visual alarm signals that will alert the watch officer of a possible threat. The display shall be contained within a console capable of being installed adjacent to the radar displays in the wheel- 35 house and may form a part of the bridge console. 94-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Provision for signal input from the ship's radars, gyro compass, and speed log, without modification to these equipments shall be made. The collision avoidance system, whether operating normally or having failed, must not introduce any spurious signals or otherwise degrade the performance of the radars, the gyro compass or the speed log. 5 Computer generated display data for each acquired target shall be in the form of a line or vector indicating true or relative target course, speed and both present and extrapolated future positions. Data shall be automatically displayed on a cathode ray tube or other suitable display contrivance sufficiently bright and unobstructed to permit 10 viewing by more than one person at a time. In addition to displaying the collision potential of the most threatening fixed and moving targets, the system shall be capable of simultaneously showing land masses. The system display shall include a heading indication and 15 bearing ring. The system shall also have the capability of allowing the operator to select "head-up" and to cancel the vector or line presentation of any of the targets. The presentation shall be non- smearing when changing modes or display scales in order to permit rapid evaluation of the displayed data. 20 Target acquisition, for display data purposes, may be manual, automatic or both, as specified by owner. For any manual acquisition system the alarms shall be initiated by a preset minimum range; and likewise for any automatic acquisition system the alarms shall be initiated by a preset minimum acceptable 25 passing distance (CPA - Closest point of approach) and a preset advance warning time (TCPA - Time to closest point of approach). Means shall be provided to silence the audio alarm for a given threat but the alarm shall resound upon a subsequent threat. The visual alarm shall continue to operate until all threats have been eliminated. If the collision 30 avoidance system fails to perform as indicated above, after the system is set for unattended monitoring, the system shall produce both audio and visual warning alarms. The system shall be capable of simulating a trial maneuver. In addition to the target display, an alpha-numeric readout 35 shall be provided which can present range, bearing, course, speed, CPA and TCPA for any selected target, either on the target display or by other display means. The collision avoidance system shall be energized from the interior communications panel board in the wheelhouse. 40 94-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The collision avoidance function may be incorporated in an integrated conning system, provided that failure of any other integrated system component will not degrade the collision avoidance function. (c) Test Requirements - Radar/Collision Avoidance System Manufacturers shall be required to certify in writing that: 5 (1) Each radar and collision avoidance equipment has been tested in accordance with the Production Testing Requirements of the Radio Technical Commission for Marine Services (RTCM) Paper 265-77/EC-240/SC65-259, Equipment Reliability Specification for Design and Production of Radar, Collision Avoidance, and Marine Interrogator 10 Transponder Equipment, and (2) Production samples of the radar and collision avoidance equipment have undergone qualification testing in accordance with the requirements of RTCM Paper 265-77/EC-240/SC65-259, and RTCM Paper 104-74/FC-140/SC-42, Performance Specification for a General Purpose 15 Navigational Radar Set for Oceangoing Ships of 1600 Tons Gross Tonnage and Upwards, Appendix A. 5. RADIO DIRECTION FINDER A radio direction finder shall be installed. The connection between the loop and the receiver-indicator shall be entirely electrical, by 20 means of ship's cable, and the design shall permit at least 30 meters (100 feet) separation between the two units. The apparatus shall be designed to function on shipboard in the presence of heavy static and interference. Its own operation shall not affect or interfere with the operation of other navigational aids. A 25 signalling interlock system, as described in Section 93, shall be provided as part of the installation. The receiver-indicator shal be adaptable to table, bulkhead, or overhead mounting. True bearings shall be indicated on an illuminated dial with provisions for controlling intensity of the dial illumination. 30 The receiver-indicator shall include a gyro-compass repeater to provide own ship's course inputs. A built-in loudspeaker and a portable telephone headset shall be furnished with circuit arranged so that the loud speaker will be disconnected when phones are plugged into the panel jack. 35 The electrical and mechanical arrangements shall compensate for symmetrically distributed quadrantal errors and goniometer drive input errors that are not corrected by the inductive compensating system. The equipment shall be energized from the 115 volt ac interior communications panel board in the wheel house. 40 94-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 6. GYRO COMPASS, COURSE RECORDER AND REPEATERS A complete gyro compass sytem, of non-hunting type, with amplifier and control panel incorporating corrections for vessel speed and latitude up to 60 degrees north and south, shall be provided. A course recorder of the gyro compass repeater type shall be 5 installed in the chartroom. Each chart roll shall be sufficient for a continuous course record of 30 days. A rate of return indicator shall be installed in the wheelhouse. The repeaters, each with proper mount, shall be located as follows: 1 - Open scale steering repeater on either the gyro pilot stand or 10 steering control section of the bridge control console, as applicable. 1 - Full scale steering repeater for bulkhead mounting in wheelhouse, or in lieu thereof the master compass may be mounted forward of helm. 15 2 - Bearing repeaters—column stand mounted, with covers, on bridge wings with one portable azimuth circle. 1 - Open scale repeater in steering gear room at trick wheels. 1 - Repeater, in radio direction finder (furnished with radio direction finder). 20 1 - Repeater in main radar indicator (furnished with radar). 1 - Repeater in auxiliary radar (furnished if stabilized display is provided). 1 - Repeater in course recorder in chartroom (furnished with course recorder). 25 The system shall be energized by an independent feeder from the emergency switchboard. 7. STEERING CONTROL SYSTEM A dual control steering system, providing control in three separate steering modes (automatic through gyro compass input; full -follow-up 30 hand-electric; and emergency non-follow-up) employing two independent steering transmission systems, shall be provided. 94-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A single steering stand shall contain a wheel, the mode selector switch, the steering system selector switch (for automatically starting the selected main steering gear pump motor) and a combined wheel posi- tion rudder order indicator and steering repeater, illuminated by red light as specified in Section 92. The stand shall also have inde- 5 pendent indicator lights with dimmers, alarms, weather and rudder adjustments control components, etc., for each system. The steering stand may be installed in a bridge console. Each control system shall be capable of (either automatically by gyro compass control or by manual control) regulating the stroke of its 10 respective steering gear pump, through a rotary hydraulic power servo unit mounted at the pump, and thus controlling the rudder. Limit switches shall be provided to prevent the rudder from moving more than 35 degrees on each side of mid ship position. Each steering control transmission system shall be energized by 15 115 volts, single phase, ac, service obtained from an independent trans- former in the steering gear room, connected to the respective 460 volt ac steering gear pump motor feeder. 8. WHISTLE CONTROL (MECHANICAL AND ELECTRICAL) There will be a whistle system actuated by ships service air, or 20 steam, having both a manual (whistle pull type) and electric control. A mechanical whistle control shall be provided and installed with a lever whistle pull in the wheelhouse. Electrical control of the whistle shall be provided by means of three control switches, timer box with timing contractor, and solenoie 25 operated whistle valve. A control switch with neutral and at-will positions shall be located in the bridge console and one at-will switch shall be provided on each bridge wing. The timing contractor shall have provisions for automatic timing cycles to affect the required whistle signals specified by the regulatory Rules of the Road, International- 30 Inland, and Rules of the Road, Great Lakes, as applicable. The air whistle diaphragm housing shall be encased in a weather proof box equipped with electric heater and heater control box with indicator lamp for mounting in the wheelhouse. The system shall be energized from the 115 volt ac interior 35 communications panel board in the wheelhouse. 94-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 9. RUDDER ANGLE INDICATOR An electric rudder angle indicator system capable of accurately indicating the position of the rudder shall be installed. The system shall include a transmitter in the steering gear room, and an indicator installed on the wheelhouse bulkhead. A watertight indicator shall be 5 installed on each bridge wing where required for docking of large ships. The indicators shall show angular position of the rudder in single degrees up to and including 35 degrees right and left, accurate to one degree. The system shall be energized from the 115 volt ac interior 10 communications panelboard in the wheelhouse. 10. PROPELLER SHAFT REVOLUTION INDICATOR SYSTEM A propeller shaft revolution indicator system shall be installed for each propeller shaft. The major components shall be located as follows: 15 Location Components Main Reduction Gear Transmitter with Mechanical Revolution Counter 20 4 inch Dial Speed Indicator with Revolution Counter 8 inch Dial Speed Indicator without counter, bulkhead or console mounting as applicable 25 Speed Indicator (watertight) without counter, of size and mounting to suit design, where required for docking of large ships. 30 The revolution counter on the engine room console shall be unidi- rectional and shall be provided with at least seven digits. The speed indicators shall have a zero center scale graduated at least every two revolutions per minute, and shall encompass an arc of at least 250 degrees. A an alternative to the dial type instruments, installation 35 of digital type speed indicators will be given consideration. The system shall be energized from the 115 volt ac interior communications panelboard in the engine room. Engine Room Control Console Wheelhouse Bridge Wings (Port & Stbd.) 94-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 11. ELECTRONIC FOG BELL AND GONG SIGNALS The system shall provide electronic fog signals to automatically sound a simulated single stroke gong signal at the stern of the ship and a bell signal at the bow of the ship. The system shall operate through the amplifier and control panel of the Public Address system, at 5 intervals: required by Regulatory Bodies. 12. WIND SPEED AND DIRECTION INDICATOR A wind speed and direction indicator shall be installed with direct indicating instrumentation mounted in the chart room. Transmitter shall combine wind speed and wind direction components 10 in a single unit. Wind speed shall be measured by a rotor driving a dc magneto with magneto generating a voltage proportional to wind speed and transmitting this voltage to the indicator. Wind direction shall be determined by position of a vane with synchro motor mounted in vane housing transmitting vane position to synchro in indicator. 15 Power supply shall be from the 115 volt ac interior communications panel board in the engine room. 13. SPEED LOG A speed and distance system shall be installed with readout display mounted in the wheelhouse or in wheelhouse console. 20 Equipment shall be complete and may be of: (1) the electromagnetic type with retractable monel rodmeter and hydraulic hoist with local and remote controls or (2) doppler sonar type with transducer array mounted external to hull or in a recessed hull penetration or (3) transducer mounted in a sea chest with a gate valve. 25 Doppler sonar speed log may be combined with doppler sonar docking system. Power supply shall be from the 115 volt ac interior communications panel board in the engine room. 14. DOPPLER DOCKING SYSTEM 30 A system shall be installed which is capable of providing ship's velocities and direction, with respect to the ocean bottom, at low ship's speed in relatively shallow water and with high resolution. Accurate velocity data shall be presented in the fore/aft direction and port/starboard directions of the bow and stern. Indicated velocities 35 shall be compensated for variations in water temperature and transmitted frequency. 94-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The system shall be implemented with transducers installed at the bow and stern sections of the ship. Displays shall be mounted in the wheel house and at both wings of the bridge. The equipment is to be complete and entirely self-contained without the aid of shore based components. The velocity data shall be obtained by making measurements 5 of relative motion between the ship and ocean bottom. The system shall operate on the principle of ship's speed being proportional to the doppler shift of the emitted frequency. 15. INTEGRATED CONNING SYSTEM In lieu of any of the special -purpose navigation systems provided 10 for in this section, the owner may elect to specify a computer based centralized bridge system incorporating various ship conning functions, including position fixing, route planning, route tracking, collision assessment and auto pilot. Systems, controls and displays (to be installed in the console(s) specified herein) are of two categories: 15 Category I equipments shall be computer integrated for automatic operation. The computer shall generate illuminated digital status dis- plays as applicable for real-time navigational data such as speed, heading, latitude, longitude and time of fix; and optionally where adequate interfaces exist, data on rudder angle and water depth shall 20 be included. These displays may be installed in one or more locations in order to suit wheel house console arrangement. Category II devices are capable of independent operation from the integrated system and may include any of the equipments, controls, displays and alarms listed in Sections 93, 94, 95, and 99. 25 The computer system may be utilized for such additional applica- tions as engine order logging and data logging as, now specified in Section 99 as well as damage control, cargo loading, ship administra- tion computations, etc. (a) Bridge Consoles 30 System components shall be housed in one or more modular consoles. These consoles, which shall be arranged in the wheelhouse as specified by the owner, may be mechanically and electrically integrated into sections for steering control, propulsion control, navigation control, collision assessment, communications control, chart plotting 35 and other required functions or groupings. (b) Computer System and Hardware A digital multiprocessing computer or a series of dedicated computers shall be installed. Special consideration shall be given to filtered ventilation, shielding, interference susceptibility, and servicing factors. 94-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (c) Computer Peripherals System peripheral and displays, including Category I devices such as track plotter and CRT, shall be provided as required for specific applications selected. (d) Computer Software 5 All acceptance- tested and documented software, shall be delivered with the computer system. (e) Power Supply Primary power source for computers, peripherals and other integrated system components shall be supplied through an isolation 10 transformer from the emergency switchboard. AC transient (high voltage spike) suppression shall be provided. Quanti- ed. 15 16. SPARE PARTS Each system shall have its own spares, separately boxed, ties shown apply to each type and size of component installed Spare parts and tools as may be required in addition to the follow- ing, shall be provided as recommended by the manufacturer: Printed Circuit Cards As recommended by manufacturers Contact Points 10% Pushbuttons Interiors 10% 20 Relays 5% Synchro Transmitter Unit 1 Synchro Indicator Unit 1 Brushes, each synchronous system 1 Set Indicator Lamps 200% 25 Lamp Socket, each type and size 1 Fuses 600% Recording Paper, Rolls 4 Vacuum Tubes, including CRT 100% Semi-conductors 10% 30 Dimming Rheostat, each type and size 1 94-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 95 INTERIOR COMMUNICATIONS 1 . GENERAL Instruments that are weather-exposed or may be subject to salt spray, dirt or moisture under any operating condition shall be of fully 5 water-tight construction and shall be of brass, bronze or primary aluminum. All signal and control relays, other than for power applications, shall be of the plug-in type. In addition, the maximum utilization of plug-in solid state electronic modules to permit easy removal and replace- 10 ment of components is preferred in lieu of discrete wired equipment. All level alarms shall have suitable time delay or be so located in the tanks as to avoid unnecessary sounding of alarms due to roll or pitch of the ship. All alarm circuits shall have automatic reset on the audible alarm. 15 A cooperated electronic equipment shall be energized through a shield-type isolation transformer as described in Section 93. 2. SHIP CONTROL SYSTEMS (a) Telephones—General Telephones in staterooms and offices shall be of the desk 20 mounted type, those on the consoles of the flush-mounted type with coil -wire type cords, and bulkhead mounted elsewhere. Telephones at locations exposed to the weather shall be pro- vided with watertight enclosures and electric heating elements to prevent condensation of moisture within the unit. Weather deck telephones shall 25 be equipped with 7.5 meters (25 feet) of extension cord. (b) Sound Powered Telephone Systems A sound powered telephone circuit shall be installed to provide communications between the following locations: Wheelhouse 30 Engineroom (Central Control Room) Steering Gear Room Forecastle (Bow Lookout) with cut-out switch in wheelhouse Gyro Room if separate from wheelhouse Emergency Diesel Generator Room* 35 Cargo Control Room* 95-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Foam Proportion Room* Captain's Office and Stateroom* Chief Engineer's Office and Stateroom* Elevator Cage* Additional stations desirable for operation of the vessel and 5 not exposed to weather may be included on this circuit. Locations marked with an asterisk may be included in the automatic dial telephone system as an alternative to the sound powered telephone system. A separate sound powered telephone circuit shall be provided 10 between the following locations: Central Control Room Cargo Control Room Cargo Pump Turbine Area Cargo Pump Room 15 Fuel Oil Filling Control Station Cargo Filling Station A sound powered telephone, independent of any other system on the ship, shall be installed between the radio room and the wheelhouse. The sound powered telephones shall be installed in accordance 20 with applicable Coast Guard and Federal Communications Commission regulations. (c) Automatic Dial Telephone System Provide an automatic dial telephone system consisting of a centrally located automatic switchboard connected to dial telephones 25 in all staterooms and day rooms, pilot house, officers' and crew's mess and recreation rooms, port and starboard gangway locations, galley, in the various offices, and in the central control room. Party line exten- sions shall be provided in related areas such as port and starboard gangways and in staterooms associated with day rooms. Extension bells 30 shall also be provided. In noisy locations, external bells of adequate size shall be provided for ringing, and in quiet locations, buzzers may be provided. The Captain's, Chief Engineer's, pilot house, and central control room telephones shall be fitted for executive-right-of-way to 35 override a busy signal and connect himself to busy line by pressing a button on the telephone. The wheelhouse phone shall be provided with an illuminated dial and dimmer. 95-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Handset mounting in the cradle shall prevent it being thrown out during heavy seas. The switchboard enclosure shall be dripproof. The automatic switching shall be accomplished by plug-in trays on which are mounted all of the electro-mechanical parts for the operation of the switchboard. 5 The system shall be energized from the 115 volt ac interior communications panel board in the wheel house. (d) Shore Side Telephone Outlets A watertight telephone connection box shall be provided on the inside of bulwark in a protected location by the gangway, port and star- 10 board, for connection to shore telephone lines. A shore type telephone jackbox shall be provided at each gangway and connection boxes in the Master's, Ship's and Chief Engineer's Offices. System shall consist of two separate lines from each of the above five locations to the connec- tion boxes and allow for two conversations of incoming and outgoing calls. 15 One portable and three fixed shore type telephones shall be provided. (e) Public Address System An intercommunication system shall be provided for transmission of voice announcement from the Wheel house to the following stations: Talk-back Stations Stations without Talk-back 20 Forecastle Gangway Stations P&S Aft Mooring Station Officers' Dining Room and Lounge Lifeboat Stations Crew Mess and Recreation Room Bridge Wings P&S Central Control Console 25 Cargo Control Room As an alternative to the above, the Dial Telephone System (Article 2(c)) may be used for Talk-back Stations. System shall also serve to transmit electronic fog bell signal forward and fog gong signal aft. 30 Wheelhouse control station shall include a combined control panel and amplifier, portable handset with at least 7.5 meters (25 feet) of coiled shielded cord, switches for selecting talk-back speakers and groups fo speakers individually or collectively any combination, audio and visual signals to indicate talk-back stations desiring to talk and to 35 indicate acknowledgement from non- talk-back stations, and a separately mounted speaker. The control station and handset shall be mounted on the bridge control console, with an operation instruction plate. 95-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION System shall also serve for intercommunication between wheel- house and bridge wings. A weatherproof speaker arranged for talking in either direction shall be provided on each bridge wing. Provide a watertight jackbox on each bridge wing each for use with a portable handset, combining microphone and receiver with "press- 5 to-talk" switch, equipped with at least 7.5 meters (25 feet) of shielded cable and watertight plug, and a stowage box in the wheelhouse for the handsets. The forecastle speaker circuit shall be so arranged that a ground, short or open circuit will have no disabling effect on the rest 10 of the system. Loudspeakers located in finished areas shall be flush mounted type. Loudspeakers other than talk-back stations shall be provided with volume adjustment taps to permit reduction of sound output from 15 FULL to -18 db in three six-decibel steps. With all loudspeakers of the system on the "FULL" tap and with a warble signal of 800-1250 Hz from the amplifier, the output pressure levels measured at a distance of 3 meters (10 feet) from the loudspeaker and on the axis thereof shall not be less than 75 decibels for interior loudspeakers and 100 decibels for 20 exterior and engine room loudspeakers. The system shall be energized from the 115 volt ac, interior communication panel board in the Wheelhouse. (f) Crane Loudspeaker System (If installed) 25 A loudspeaker system for clear spoken communication from the crane operator to workers beneath the crane, comprising a unidirectional fixed microphone, control and solid state amplifier located in the crane cab within easy reach of the operator, shall be provided for each crane. Hands-off operation shall be provided with a push-to-talk switch, located on the crane control lever or foot operated, as appropriate. 30 On-off and volume controls shall be included, with heaters (connected to a circuit continuously energized independent of power circuits) activated in the "off" condition. Weathertight loudspeakers as required shall be mounted port, starboard and centerline on the underside of the upper crane structure 35 to provide a sound level of 90 decibels at the bottom of a hold under the crane and at waterlevel abreast the crane. They shall have a derating of 20 percent when operating at amplifier full power output. 95-4 10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION A monitor loudspeaker, having 2 watts minimum audio power and local volume control, shall be located in the crane cab. The system shall be energized from the 115 volt ac lighting panel board in the Crane Cab. (g) Barge Control Loudspeaker System (If installed) A loudspeaker system for clear spoken communication overside to bargemen in the stern area, comprising wireless microphones, solid state amplifier, control, monitor, and loudspeakers fitted around the stern, shall be provided. The microphone shall be of the hand-held, cordless, portable type employing radio transmission from the microphone to a nearby fixed radio receiver. Transmitter (microphone) and receiver shall be crystal controlled to operate on at least two frequencies as may be required to comply with Federal Communications Commission and international regula- tions to provide operation in any port, and the receiver sensitivity threshold shall be set as high as possible to peclude interference from more distant stations on the same frequency. The microphone shall be powered by rechargeable nickel-cadmium batteries, with locked storage and recharging facilities provided underdeck at the stern. The system shall provide a sound level of 90 decibels at a 20 range of 61 meters (200 feet) from the stern when the amplifier and speakers are operating at 50 percent of full range continuous duty rated power. The amplifier shall be located in a suitable work space under- deck at the stern and shall be remote unattended. The amplifier and controls shall be watertight and in a sheltered location on the stern, 25 and shall include on-off and volume controls, with system heaters activated in the "off" condition. Submergence- proof loudspeakers with integral transformer housing shall be fitted in sufficient number around the stern at the peripheral rails projecting outboard and downwards to provide the 30 specified sound level. The system shall be energized from the nearest emergency lighting panel board. (h) Bridge Control Console—Navigation Control Section The navigation control section of the bridge control console 35 shall consolidate all associated navigational aids and communications listed below and shall be constructed in general accordance with the requirements for the bridge control console as described in Section 99. 95-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (1 (2 (3 (4 (5 (6 (7 (8 Sound powered telephone circuits* Radio-telephone remote station with handset* VHF radiophone* Echo depth sounder indicators Shallow water depth alarm Whistle control including hand, automatic and timer switches Control switch for lifeboat floodlights Control switch for lights on deck that may interfere with navigation (9) Navigation light panel (10) Control switches for deck floodlights (11) General Alarm contact maker (12) Wheelhouse alarm panel and buzzer (13) Log Desk area (14) Chart table type light with dimmer control (15) Dimmer control for all instrument lighting (16) Master digital clock with local readout and controls (17) Public Address System Contorl Panel and handset (18) Wind Speed and Direction Indicator (19) Speed Log Indicator *These items may be installed on the forward bulkhead. (i) Salinity Indicator Systems Electrical salinity indicator systems shall be installed for the feed and condensate system and for the desalination units. Each system shall have a dripproof modular type indicator panel, with indi- vidual monitoring sections, one for each salinity cell circuit, which are readily removable for replacement, and an audible alarm. 10 15 20 25 95-6 10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All salinity cells shall be interchangeable without system adjustment. The cells shall be removable and replaceable in a continu- ously operating system at pressures up to 21.7 mPa (150 psi) over a temperature range of 4°C (39°F) to 121 °C (250°F). Each system shall have rapid automatic cell temperature compensation within a temperature range of 4°C (39°F) to 121°C (250°F) and the alarm indication and control accuracy shall not exceed an error of 5 percent true salinity. One portable test resistor unit shall be provided to make an overall check of each system. Equipment for the salinity indicator system for the feed and condensate system shall be located as specified in Section 60. The alarm circuitry shall be adjusted to automatically actuate visual and audible alarms at 4.3 grams of sea salt per cubic meter (0.25 grains per gallon). The salinity indicator system for the desalination units shall control an electrically tripped automatically reset dump valve, as speci- 15 fied in Section 55. The solenoid operated dump valve point shall be adjustable. Dumping of processed water shall actuate the alarm. The salinity cells and solenoid valves for the desalination units shall be located as specified in Section 55. A polarized water- tight 3-wire plug and receptacle shall be provided for each cell and valve assembly to facilitate servicing of the cells. The systems shall be energized from the 115 volt ac interior communications panel boards in the engine room. (j) Tank Level Indicators Remote reading tank level indicating systems for intrinsically 25 safe electrical types designed for marine service may be provided in tanks as listed in Section 71. Arrangement, location and size of indica- tors shall be as specified for pneumatic systems. The systems shall be energized from the 115 volt ac interior communications panel board in the engine room. 30 3. ALARM SYSTEMS (a) General Alarm A general alarm system shall be installed, with approved warning devices in spaces where people may be at any time. The system shall be energized from the dc distribution 35 section of the emergency switchboard. 95-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Wheel house Power Failure Alarm Panel Provide a miniature type alarm panel in the wheelhouse incor- porating a common audible signal and individual visible signals for the following services: System No. Alarm Signal 5 Alarm Power On (1) -- Voltmeter (miniature) Rudder Angle Indicator (1) Power Failure Red Light Gyro Compass (1) Power Failure Red Light Steering Control (2) Power Failure Red Light Engine Order Telegraph (1) Power Failure Red Light 10 Smoke Detection (1) Power Failure Red Light Bridge Throttle Control (1) Power Failure Red Light Shallow Water Depth Alarm (1) Power Failure Red Light A pushbutton shall be provided for silencing the buzzers and 15 dimming the indication until the cause has been corrected, at which time the circuit shall be automatically restored to normal condition. The system shall be energized from the dc distribution section of the emergency switchboard. (c) Smoke Detecting System 20 A smoke detecting system shall be installed in accordance with Section 13. The system shall be energized by dual feeders, (1) from the 115 volt ac distribution section of the main switchboard, and (2) from the 115 volt ac distribution section of the emergency switchboard. 25 (d) Fuel Oil Standpipe Alarm Contact makers shall be installed in the fuel oil system stand- pipe to actuate alarms on high oil level in the standpipe. An alarm bell, indicating light and bell silencing switch shall be installed at the fuel oil filling station. 30 The system shall be energized from the 115 volt ac interior communications panel board in the engine room. (e) Steering Gear Alarms Alarms shall be installed on the engine room control console for each steering motor and feeder circuit breaker. 35 95-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The system shall be energized from the dc bus in the engine room console. (f) Fuel Oil Settling, Fuel Oil Day, and Diesel Oil Day Tanks High and Low Level Alarms An alarm system to indicate when any fuel oil settling, fuel 5 oil day, and diesel oil day tank is nearly full or nearly empty shall be installed. It shall include two approved sensors at each tank, a dripproof alarm panel with 15 cm (6 in) bell, located adjacent to the fuel oil filling control station, an alarm circuit to the central con- trol room console, and interlocks for fuel oil transfer pump and diesel 10 oil purifier shutdown. The high level sensor shall simultaneously shut down the fuel oil transfer pump used for filling the tank, but pump restart shall be permitted when the transfer pump is connected to an unfilled tank. The alarm may be silenced by a switch but it shall be ready to sound without 15 further attention when other tanks become filled. The red light shall continue to be energized as long as the tank is filled. When the second tank is nearly full, the alarm shall sound, the transfer pump and diesel oil purifier will shut down and a second red light shall be energized on the panel. The alarm may again be 20 silenced but the second red light shall still be energized as long as its tank is filled. The sequence shall be repeated for any remaining tanks. The system shall be energized from the 115 volt ac interior communications panel board in the engine room. 25 (g) Emergency Generator Diesel Engine Alarms A visual and audible alarm panel for the diesel engine shall be installed in the emergency generator room. The panel shall have a dripproof enclosure and shall contain alarms for high jacket water temperature, hydraulic starting low pressure and low lubricating oil 30 pressure in addition to other USCG requirements. The panel shall be provided with switches for testing alarms, for silencing the audible alarm and for normal operating set up. The audible alarm shall be an electric horn located adjacent to the engine. High jacket water temperature and low lubricating oil pressure 35 alarms shall be automatically deactivated when engine is shutdown. The system shall be energized from the 120 volt ac distribution section of the emergency switchboard. 95-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (h) Oil Overboard Discharge Alarm System A visible and audible alarm on the central control room con- sole shall be provided to actuate on passage of oil content in each overboard discharge in excess of requirements in accordance with Section 70. 5 The system shall be energized from the 115 volt ac bus in the engine room console. (i) Control Air and Ship Service Air Pressure Alarm System A low pressure alarm circuit, actuated by a pressure switch, shall be installed for each system to indicate, on the engine room 10 control console, when the air receiver pressure falls 1.5 mPa (10 psi) below the air compressor start up pressure. The system shall be energized from the dc bus in the engine room console. (j) Bilge Wells Level Alarm System 15 A bilge alarm system shall be installed to activate visual and audible alarms on the engine room console for high level in all bilge wells in machinery spaces shaft alley, and pump room (if provided). The system shall be energized from the dc bus in the engine room console. 20 4. SHIP SERVICE SYSTEMS (a) Dumbwaiter Intercommunication System (Where Galley and Messrooms Are on Separate Decks) An intercommunication system shall be provided between all decks served by the dumbwaiter. Each station shall provide all necessary 25 components, including a fully transistorized audio amplifier to provide two-way voice communications between any two or more stations in the system. The system shall be arranged for "hands free" response from the called stations. A call system comprising a pushbutton or switch for signalling 30 each station by means of a signal light and distinctive tone call-signal with a volume control for incoming speech shall be provided at each station. The system shall be energized from 115 volt ac interior communications panel board in the engine room. 35 95-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Ship's Entertainment System (1) The radio entertainment system shall consist of separate or combination AM/FM receivers with matching loudspeakers, with an AM frequency coverage of 540 kc to 30 mc and FM frequency band, 98 to 108 mc, installed in the officers' lounge, passengers' lounge and crew's lounge. Each receiver shall be connected to the broadcast antenna system specified in Section 93 for antenna connection and power. (2) The television entertainment system shall consist of 53 cm (21 in) or 58 cm (23 in) television receivers installed in the officers' lounge, passengers' lounge and crew's lounge. Each receiver shall be connected to the antenna/amplifier distribution system specified in Section 93 for antenna connection and power. (c) Hospital Call System (If provided) A hospital call bell system shall be installed with an annun- ciator in the wheel house or in an alternate specified manned space. Pushbuttons shall be provided at the berths in the hospital space. Each pushbutton plate is to be inscribed "Emergency Call Only." The pushbuttons shall be of the pendent type. The system shall be energized from the nearest 115 volt ac interior communications panelboard. (d) Ship's Electric Clock System An electric clock system shall be provided consisting of a master control in the wheel house and bulkhead mounted secondary clocks with shatterproof lenses installed in the following spaces: Size 15 20 25 Captain's Office 150 mm (6 ■ nch) Chief Engineer's Office 150 mm (6 i nch) Ship's Office 150 mm (6 ■ nch) Galley 200 mm (8 i nch) Crew Messroom 200 mm (8 i nch) Wheel house 200 mm (8 ' nch) Radar and Gyro Room 150 mm (6 i nch) Recreation Spaces 200 mm (8 i nch) Officers' Mess and Lounge 200 mm (8 i nch) Engine Room Control Console 200 mm (8 inch) Chart Room, where not integrated with wheel house 200 mm (8 i nch) 30 35 95-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The master time control shall contain a synchronous motored master clock with battery-powered frequency standard for driving the master clock with an accuracy within one minute per month. In event of power failure, the battery shall have sufficient capacity for operation of the master clock for at least 12 hours. 5 The master clock shall be enclosed in a cabinet having a door with dust seal and window for viewing the clock dial. When crossing into a new time zone, it shall be possible to reset the master and all secondary clocks back or forward one hour rapidly from the master unit. 10 The system shall be energized from the 115 volt ac interior communications panel board in the wheel house. As alternatives to the electric clock system described above, the installation of a remote digital clock system in which the remote clocks displaying hours and minutes are driven from the digital clock 15 on the bridge propulsion control console may be specified. Mechanical clocks in accordance with MA Specification 18-MA-3 may also be specified in lieu of any part of the above system. (e) Cargo Conditioning Control System (If installed) Atmospheric and cargo conditions in the cargo compartments 20 shall be recorded by means of multi -point strip chart electronic recorders mounted on the Cargo Conditioning Control Console located in the Wheel house or Chart Room. The Console shall provide control and recording services as described in Section 69. 25 The system shall be energized from the 115 volt ac interior communications panel board in the wheel house. (f) Refrigerated Container Monitoring System (If installed) Watertight multipole monitoring receptacles shall be provided for use with refrigerated cargo and ship's stores containers, one located 30 adjacent to each refrigerated container power receptacle. The monitoring receptacles shall be connected, by multi -conductor cables, to a monitor- ing panel located at the refrigeration control board. The monitoring panel shall provide visual indications for "temperature in limits," "defrost" and "unit operating," in a unit 35 annunciator window, for each refrigerated container. A "power on" indication and common pushbutton for testing all indicating lights, shall 95-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION be provided. The circuitry and operating voltage shall be compatible with the signal sources installed in the refrigerated containers. Portable cords, one for each receptacle, shall be provided for inter- connecting each monitoring receptacle and container. The system shall be energized from the 115 volt ac interior 5 communications panel board in the engine room. 5. CARGO AND SHIP'S REFRIGERATION CONTROL BOARD (If installed) A refrigeration control board shall be furnished and located in the engine room convenient to the engine room control console. It shall provide for the remote control and monitoring of the cargo refrigeration 10 system and the monitoring of ship's service refrigeration, air condition- ing and liquid cargo temperatures. It shall also provide for remote starting, stopping and testing of all refrigeration and air conditioning compressors, cargo refrigeration fans and cargo refrigeration unit defrosting. Where required, a dripshield with continuous strip lighting 15 shall be furnished at the top with light control switch on the bench section. Suitable heating elements with watertight connection boxes, magnetic contactors and control thermostats shall be furnished with the cooling units. 20 All controls and electrical actuating devices, that for practical reasons must be located locally in the various fan rooms or elsewhere within the refrigerated cargo spaces, shall be watertight. Ship's Service solenoid valves shall be actuated by the thermostat in the compartment and shall have their power supply from the nearest 25 lighting panelboard. Cargo solenoid valves shall be supplied from the cargo and ship's Refrigeration Control Board. The control board shall contain the following equipment for the various control and monitoring systems: (a) A series of alarm annunciators, in conjunction with the alarm 30 bell and extension alarm to the engine room control console, to indicate alarms listed in the Information List following. (b) Multiple record strip chart type temperature recorders for the cargo refrigeration spaces as required by Agricultural Research Service, Plant Quarantine Division. 35 (c) Multiple record strip chart type temperature recorder for recording the temperatures of the cargo oil tanks as specified in Section 68. 95-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (d) Temperature indicator with multipoint selector switch for indicating the temperature in each ship's refrigerated stores compartment. Two or more resistance temperature detectors with stainless steel cases shall be installed in each compartment. 5 (e) "Run-Stop" illuminated pushbutton for control of each air conditioning compressor, when its respective local control switch is in "auto" position. (f) "Of -off" pushbutton type selector switches, in interlocked sets, for selection and control of the defrosting heaters for 10 the cooling coils. The pushbuttons shall be in sets to limit the number of coils being defrosted simultaneously. Depressing a pushbutton for the selected cooling unit shall effect the following events automatically: (1) Freon solenoid valve for the selected cooling unit shall 15 close, (2) The recirculating fan of the selected cooling unit shall stop, (3) Defroster control contactor shall close, energizing defroster and drain pipe heaters. Annunciator on control 20 board lights up to indicate unit is defrosting. (4) When cooling coil temperature has risen to a point recom- mended by manufacturer, thermostat shall shut off heaters and turn out annunciator light, (5) The cooling unit recirculating fan shall restart, 25 (6) Solenoid Valve circuit shall be reenergized. CARGO & SHIP'S REFRIGERATION CONTROL BOARD INFORMATION LIST The information to be acquired, processed, displayed and alarmed and the motors, compressors, valves, etc., to be controlled from the 30 Cargo & Ship's Refrigeration Control Board shall be as indicated in the following Information List. As this list does not necessarily include all control devices, indicators, alarms, etc., additional appurtenances necessary to satisfy the complete requirements of these specifications shall be provided. 35 95-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Information Acquired Display & Processed Device Designations Alarm Remarks A. Cargo Refrigeration Compressor control IPB Auto. stop test S Refrigerant Solenoid IPB OP - valves CL Thermostat control C Remote control with follow- up indication Temperature recorders C — - Discharge & Return Air Temperature recorders C -- - Lock type- Refrig. Spaces Recirculating fans IPB FS S control SS Stop Exhaust fans control IPB FS SS Stop S Supply fans control IPB FS SS Stop S Damper controls C OP CL Remote control position selec tor switches with follow-up indication Cooling Water A — S Water failure Refrig. coil Differen- D -- - Gang PB tial press Selector Sw. Defroster Selector A On - Gang PB Off Selector Sw. interlocked with auto con- trol to indi- cate location B. Liquid Cargo Temperature recorder 10 15 20 25 30 35 40 95-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Information Acquired & Processed C. Ship's Service Refrigeration Display Device Designations Alarm Remarks Compressor control Temperature indicator IPB D Auto. stop test Cooling Water A -- D. Air Conditioning Compressor control IPB Rung Stop Cooling cycle Heating cycle Cooling water A A A on on Via selector Sw. Water failure Auto/Stop/ Test Sw. at Compressor Water failure Via selector Sw. Temperature indicator LEGEND A Annunciator Indicator C Continuous Display on meter or gage D Demand display on meter via selector switch, pushbuttons, etc. OP Open/Ann. Indie. CL Closed/Ann. Indie. PB Pushbutton IPB Illuminated Pushbutton S Stopped Alarm & Ann. Indie. FS Fast Speed SS Slow Speed (V) Vital Circuit (others not marked are non-vital) 6. SPARE PARTS See Section 86 for policy governing spare parts, both on-board and shore-based. 10 15 20 25 30 95-16 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 96 STORAGE BATTERIES 1. GENERAL Storage batteries shall be of the nickel cadmium alkaline type or the nickel iron alkaline type to suit the specific application. All 5 exterior metal parts of the cells, including the connectors, shall be nickel plated. Connectors shall be provided for terminating the ship's service cables. Batteries shall be designed, constructed, and selected to provide a life expectancy of 25 years in an ambient temperature of 40°C. The batteries shall be delivered fully formed, charged and ready 10 for service. Suitable charging facilities for the storage batteries shall be provided as described in Section 89, Article 4(b)(3). 2. I.C. BATTERIES Duplicate sets of storage batteries shall be provided for supplying power to the interior communication services, one serving as standby for 15 the other. 3. RADIO BATTERIES Radio batteries shall be furnished with the radio communications equipment and shall be of a capacity to suit FCC requirements. Charging facilities for the radio battery shall be furnished as an integral part 20 of the radio communications equipment. 4. SPARE PARTS Spare parts shall be provided in accordance with the requirements in Section 86. 5. SPECIAL TOOLS 25 Special tools as may be required in addition to the following shall be provided as recommended by the manufacturer. 2 Hydrometers, complete 2 Hydrometer floats 2 Glass barrels for each size hydrometer used 30 2 Spirit thermometers, minus 20°C to plus 75°C (0°F to 160°F) scale 1 Voltmeter, 3-0-3 volt scale, with leads 1 Small jack or pliers for removing cell connectors from tapered posts 35 1 Post nut wrench for each size of terminal nut 96-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 1 Filler bulk 1 Portable non-metallic distilled water container (not to be contained in spare parts box) The special tools shall be stored in a spare parts box. Where the radio batteries are located remote from the battery room, any associated spares and special tools shall be separately boxed and stored in the vicinity of the batteries. 96-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 98 TEST EQUIPMENT, ELECTRICAL 1. PORTABLE INSTRUMENTS The instruments listed below shall be procured and stored aboard the vessel. Instruments shall be complete with carrying cases, 5 batteries, and test leads as applicable. 1 - Insulation resistance tester, 500 volts, hand operated. 1 - AC clamp type volt-ammeter with minimum of four current and two voltage scale ranges, minimum high ranges 300 amperes and 600 volts. 10 2 - AC-DC volt-ohm-milliammeters. 1 - Portable tube tester, roll-chart type. 1 - Transistor/FET tester capable of in-circuit testing. The above list is not all inclusive. Alternative or additional instruments shall be considered. 15 2. TEST RECEPTACLES Combination interlocking switch and receptacles, rated 20 amperes, shall be mounted on the bulkhead above a workbench in the electric workshop to provide the following power supplies for testing purposes: 460 volt, 3 phase 60 Hz 20 115 volt, 3 phase 60 Hz D-C bus voltage Provide matching plugs with 3.3 m (10 ft.) long cords having insulated clubs with phases, polarity and ground conductors marked and stow convenient to the receptacles. Circuit breakers adjacent to 25 or integral with the receptacles shall be provided for disconnection and overcurrent protection. Receptacles or lamp holders shall be installed as necessary to permit convenient one man testing of each type and size lamp installed on the ship. 30 98-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 99 CENTRALIZED ENGINE ROOM AND BRIDGE CONTROL 1 . GENERAL A centralized engine room and bridge control system shall be furnished providing centralized remote control and information display. 5 The plant shall respond automatically to either bridge or engine room throttle control over the complete range of plant operation without the intervention of the engineering watch personnel. The centralized engine room control shall permit the operator to observe all the important operating conditions and initiate many functions from the console as 10 specified herein. During all cruising and maneuvering modes, the centralized engine room control system shall continuously monitor all important temperatures, pressures, flows, levels, and electric load characteristics, as specified herein. Abnormal conditions shall be sensed by the controls and shall 15 actuate an alarm to warn of the condition. A data logger of digital type shall be installed to provide the operator with trends in plant conditions. The centralized engine room control system shall provide effective unattended engine room control during all cruising and maneuvering modes and shall meet the following general requirements: 20 (a) The main propulsion system shall be started at the centralized engine room control console before the bridge control console is used to control the main propulsion engine. (b) System shall comply with criterion for unattended machinery operation as outlined in U.S.C.G. Navigation and Vessel 25 Inspection Circular (latest revision), "Guide for the Auto- mation of Main and Auxiliary Ship's Machinery," and with criterion for the ACCU symbol condition of operation for automatic control system for unattended engine room certifica- tion as outlined in American Bureau of Shipping Rules for 30 Building and Classing Steel Vessels (latest revision). (c) Automatic and remote operation of all vital auxiliaries shall be provided as required by Regulatory Bodies. (d) Vital sea valves, valves associated with the diesel generators, emergency fire pump, ship service and regulating valves shall 35 be arranged for remote control, or automatic functioning to maintain desired operating conditions for the plant. 99-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (e) The control pushbuttons for the remote-operated valves specified shall have valve position indicators presented conclusively accurate open and closed condition on the engine room control console. (f) The following pumps shall have automatic startup capability 5 upon failure of the running pump (as applicable to the engine provided): Main engine lube oil Main engine fuel oil service Main engine jacket, piston cooling and fuel valve cooling 10 water Sea water service pumps 2. ENGINE ROOM CONTROL CONSOLE (a) General The engine room control console shall be installed in the 15 totally enclosed air conditioned central control room as shown on the machinery arrangement plans. The room shall be constructed of incombustible material. Windows shall be of double glass sealed unit shatter-resistant type. Discoloration and distortion shall be kept to a minimum. 20 The central control room arrangement shall permit an operator maximum visibility of the entire main operating flat. The engine room console shall be recessed if necessary to improve the operator's visibility. (b) Environmental Conditions 25 Consideration shall be given in the design of all equipment specified herein to the environmental conditions of shipboard service with particular emphasis being placed on corrosion, temperature, vibra- tion, position, power supplies, and electrical interference effects. The below listed specifications shall prevail: 30 Ambient Environmental Temperatures Ambient temperature range up to 50°C (122°F) Vibration Equipment shall be capable of satisfactory operation when it is subjected to shipboard environmental vibra- 35 tions as specified below: 99-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Displacement—Single Displacement-- Frequency Range Amplitude plus or Single Amplitude CPS minus millimeters plus or minus inch 5 to 15 < 0.914 < 0.036 16 to 25 <_ 0.610 <_ 0.024 26 to 33 < 0.305 < 0.012 Noise The room shall be soundproof to the maximum practical extent and in no case shall noise levels exceed those specified in Section 1. 10 Position The conditions of roll, pitch, trim, and list shall be specified in Section 1. Humidity 10 to 95% relative humidity at 49°C (120°F). 15 (c) Design and Arrangement The instrumentation on the console shall include equipment as indicated in the "Maritime Administration Guide for the Standardized Engine Room Control Console for Slow Speed Diesel Propulsion" latest issue. 20 Console shall be arranged systematically into the following groups: propulsion control, generator prime mover control and ship service control. The generator prime mover control section of the con- sole shall be located nearest to the main switchboard such that complete generating plant control shall be from that one location in the central 25 control room operating station. Within each group, location of displays shall be keyed to the functions and data necessary for control of the particular machinery in that group. All instruments exposed on the operating console shall be recess mounted with the controls, meters, etc., as nearly flush as 30 practicable. Miniaturized equipment may be used in order to limit the size of the console. Consoles and panels, including surface and/or flush mounted instruments and controls shall be of dripproof construc- tion equivalent to NEMA 12 enclosure. The console shall be substantially tight to exclude, dust, moisture, oily vapor and dirt. 35 99-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION In general, display accuracy shall be at least + 5% of full scale span, or the scale division whichever is smaller, at the rated normal operating condition. Monitoring and logging accuracy shall be at least + 1% of full scale span at the rated normal operating condi- tion. The above accuracies shall be met for the end product (i.e., the 5 displayed, logged, or monitored variable) and shall include all the individual errors in sensing and signal transmission. Special consid- eration shall be given to critical variables which shall have a greater accuracy if required. All electrical and electronic circuits shall include fault- 10 finding means to permit an operator to locate a non-functioning element. Test means shall discriminate to within two or three modules and shall not require detailed knowledge of the module circuitry. (d) Construction The length of the console shall be kept to a minimum consistent 15 with a compact and logical arrangement. In general, human engineering principles shall be applied in the design and arrangement of the console and the selection and positioning of all displays, indicators, pushbut- tons, etc. The consols shall be provided with grab rails. The console shall be constructed of steel or aluminum plate of 20 sufficient thickness and with adequate support members and stiffening to resist vibration. It shall be painted when necessary to prevent cor- rosion and glare and to present a pleasing appearance and suitable background for the instruments, devices, etc., located thereon. Ease and accessibility for servicing shall be one of the prime requisites in 25 the design and construction of the console. Access to inside of console or component assembly shall be provided through removable panels fitted with captive quick-acting retaining screws or switchboard type "open and stop" or three point latches, as necessary to protect instrument faces. Rear access will be subject to special consideration. Panels shall be 30 as lightweight as possible and shall be provided with handles to facilitate removal for hook-up and service. Foundation shall be designed to suitably support the console and may be welded directly to the deck. Details of the foundation shall be furnished as soon as developed so that suitable back-up structure may 35 be provided beneath the deck prior to installation of the console. Each console group shall have provision for bottom cable entry area. These entry areas shall be clearly indicated on the outline and foundation plans. Thermostatically controlled heaters shall be provided for 40 humidity and temperature control for cold ship conditions. Available cooling air for electrical or electronic equipment located in central control room operation station will be filtered ambient air up to 99-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 65°C (149°F) and relative humicity of from 10 to 95 percent at 65°C (149°F). Air circulators shall be provided in the console sections if necessary for proper cooling. (e) Power Supplies The central control room operating station console shall 5 receive electrical power from three sources as follows: 115 Volt, 60 cycle, single phase from the emergency switch- board. This power source is the normal supply. 115 Volt, 60 cycle, single phase from the main switchboard. This power supply is the alternate supply. 10 24 Volt, D-C, single phase from the emergency switchboard battery bus. This power supply is the emergency supply for monitoring, alarms and emergency action. Within the console shall be furnished a means for effective automatic transfer to the alternate supply from the normal supply upon 15 failure of the normal supply. White "power-on" indicating lights shall be provided for the three electrical power sources to the console. A power supply transfer alarm shall be provided for the automatic transfer of normal supply to alternate supply. 20 In the case of power failure of the propulsion control system, both audible and visual alarms shall be actuated on the bridge and the central control room operating station consoles. Within the console shall be furnished, if required, a modular type static power 115 volt/60 cycle/single phase to 24 volt, D-C, 25 converter unit to serve as a controlled power source for instruments, digital clocks, relays, and other components requiring voltage and frequency stability exceeding that of the ship's generating plant. The control system shall operate satisfactorily with a voltage variation of +57 and a frequency variation of +3%. Temporary voltage dips of 20% 30 shall not cause damage to equipment or interruption of service. Within the console shall be furnished, if required, a modular type static power 115 volt/60 cycle single phase to 24 volt, D-C, con- verter unit to serve as a controlled power source for critical circuits. Upon loss of the 115 volt/60 cycle/single phase power supply to the 35 console an effective automatic transfer to the 24 volt, D-C, power supply from the emergency switchboard supply shall be furnished within the console. 99-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Conducted interference, including power frequency harmonics, spikes and surges, plus radio frequency energy shall be excluded by means of isolation and filtering networks as necessary. (f) Control Air The engine room console and other control equipment shall 5 receive control air from the control air system per Section 72. All pneumatic tubing connections shall be in tubing terminal blocks located conveniently around the perimeter of the console. Termi- nals shall not interfere with proper maintenance of internally located console equipment. 10 (g) Label Plates Labels shall be designed to be read easily and accurately at the anticipated operational reading distances and illumination levels specified per Section 92. Labels should identify what is being measured rather than indicate an instrument title, e.g., "Main L.O. Pressure" not 15 "Main L.O. Meter." Labels shall be placed consistently either below or above each component identified, with the above location preferred. Label plates may be plastic, engraved on metal, "Metal Photo" or equal. Plastic plates shall be machined on black laminated phenolic having a white center or of other plastic material as approved. 20 Sizes of label plates shall be proportioned to the item(s) it references. Label plates character height shall be designed in accordance with IEEE-45 recommendations. Lettering shall be clear and concise with the minimum of 25 abbreviations. Where abbreviations are necessary, they will conform to MIL-STD-12 (latest issue). (h) Annunciators and Alarms The various alarms and annunciator systems shall be fed from the electrical power supply furnished to the console unless otherwise 30 specified. Pumps, systems or components essential for the operation of the propulsion or ship's service electrical system shall be provided with a first cause or first out annunciator on the engine control con- sole to more accurately identify the cause of failure. 35 99-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The alarm system shall be arranged to respond to off-normal values as detected, either by the data logger or display sensor, or by independent primary sensors as assigned and shall not be affected by any malfunctions of the display instrument or logging system. Visual signals shall be presented on annunciators in the 5 appropriate console section using miniature annunciator panels. Each annunciator shall have an approved legend illuminated by lamps, a color filter suitable for the service and two incandescent lamps in parallel. All low voltage illuminated indicators, including illuminated pushbut- tons, shall have two lamps for each indication. All illuminated devices 10 shall use lamps of the same type as far as practicable. 28 volt long life incandescent lamps shall be provided on 24 volt circuits. Minia- turized mimic diagrams serving as annunciators may have only one lamp within the annunciator display provided a second alarm display with two lamps for the mimic section is also provided. 15 In cases where an alarm condition also requires automatic shut-down of the auxiliary, or where other automatic functions are actuated, the testing of the alarm lights or audible signal shall not influence operation of the monitored unit. When a fault occurs the audible signals shall be energized and 20 the identifying device for the particular conditions shall be illuminated by flashing lamps. The audible alarm shall be capable of being manually silenced by depressing the "acknowledge" pushbutton on that section without inhibiting the audible signal from the sounding when a fault condition occurs on another circuit. When the audible alarm is so 25 silenced, the visual alarm shall remain actuated in a steady state of illumination until the off-normal condition is corrected. However, after a malfunction alarm, the red light indicating this fault shall cease to show after the "Stop" pushbutton of the auxiliary involved is actuated. Deliberate stoppage of auxiliaries shall not actuate a 30 malfunction alarm unless the auxiliary is serving an operating engine. An individual annunciator with concise identification shall be provided for each alarm-monitored item. The annunciators shall be grouped in approved logical arrangements. Alarm circuits monitored by switching devices shall be designed 35 so that the sensor will maintain a normal condition with a closed cir- cuit. An off-normal condition shall open the circuit to actuate the alarm. Thus, wiring, terminals and contacts are also monitored and any break in the circuit shall immediately show an alarm condition. 40 Momentary contact pushbuttons, one for testing audible alarms and one for testing annunciator indicating lamps shall be provided on each section of the console. 99-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (i) Indicating Lights and Pushbuttons There shall be an obvious difference between alarm indicator lights and the pushbuttons. This does not, however, prevent illumi- nating a pushbutton as an alarm. Where guarded switches or pushbuttons are required, a spring loaded clear plastic cover shall be provided. The motors controlled from the engine room control console shall have color-coded illuminated pushbuttons for control and indication. The control pushbuttons for the remote operated valves speci- 10 fied shall have valve position indication presenting conclusively accurate open and closed condition. The position indications may be combined with pushbuttons in mimic diagrams. Both indicators shall be energized in any position between full open and full closed. Lamp replacement shall be accomplished from the front of the 15 console without the possibility of switch activation. 3. SYSTEM COMPONENTS (a) Sensors, General Sensors shall suit the application requirements as to type, range, accuracy, speed of response and environment and shall be compat- 20 ible with data logger and/or display components. Alarm sensors shall have an adjustable differential range between the off-normal and return-to-normal operating points which shall preclude repeated cycling. Installation requirements for conductor shielding, twisted 25 pairs, etc., shall be observed. (b) Temperature Sensors Temperature recording, indicating and monitoring shall be accomplished with resistance type sensor cells, single or dual element, rated for the temperature range sensed. 30 Each detector shall be fitted to a well of material compat- ible to the material of the unit to which it is attached. Materials should be of corrosion resisting steel for temperatures of 232°C (450°F) and above and may be of brass for temperature below 232°C (450°F) except that all wells used with oils shall have steel sockets, and all 35 wells used in salt water shall have Monel sockets. The thread of the detector-well joints shall permit emergency use of bi -metal lie thermo- meters as temporary replacement of detector elements. It is preferred to have wells of 19 mm (3/4 in) NPT size connection. 99-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Thermocouples shall not be permitted for this service except for Diesel Engine Exhaust Temperature Sensors. All resistance type temperature sensors shall have individual bridge circuits incorporating individual zero and span adjustments. (c) Pressure Sensors 5 Pressure monitoring shall be accomplished with pressure type transducers. Off -normal pressure alarms shall be detected by separate pressure operated switches or electrical signal from the pressure transducer. 10 (d) Level Sensors Level monitoring shall be accomplished by means of individual magnetic float-operated level switches, by individual pressure operated contact makers, transducers, or capacitance or conductance probes. Level sensors in combustible atmosphere shall be intrinsically 15 safe. (e) Miscellaneous Sensor and System Component Requirements Signal pickups for displays, logging, and alarms other than the above shall be obtained from sensors provided as part of the system including propeller shaft revolution indicators, salinity indicators, 20 tank level indicators, emergency generator diesel engine alarms, turning gear signal circuit, engine order telegraph, shaft horsepower, etc. Static devices for monitoring, amplifying and relaying, having satisfactory record of performance in like service shall be used. Relays, where required, shall be of the enclosed plug-in units, 25 hermetically sealed reed type where required, clearly identified on the case. Monitoring circuits and devices shall be rugged, miniature, modular units. Control transformers and rectifiers for power control monitor- 30 ing and indicating systems shall be provided as necessary. Miniaturized equipment shall be used wherever practicable. Control circuit fuses shall be grouped on accessible panels, behind hinged doors, and shall have blown fuse indication and permanent, easily legible circuit identification at each fuse, where practicable. 35 99-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All electrical connections to the console shall be made at terminal blocks in the base of the console. Each wire shall be clearly marked with circuit and terminal number. Internal wiring from the terminal boards shall be furnished with the console, and shall be arranged in convenient groups with neatly arranged securing lacing. 5 Low level signal wiring shall be shielded and conductor harness assign- ments shall be carefully segregated to eliminate interference from high level signals and preclude damage to vital circuits by a fault in any other conductor. All wiring shall be adequately protected from abrasion at all metal contact points. No fluid lines, no lube, diesel, 10 or fuel oil vapor content air lines; no steam lines, or any air lines above 862 Kpa (125 psi) shall be permitted inside the console or the central control room operating station. Solid amplifiers shall be provided as necessary to preclude overloading transducers which are used as common signal source for 15 display, logger and alarm. To the maximum extent practicable, plug-in modules shall be used in the contruction on the console, and except for external wiring to the console, all other connections shall be through the use of plug- in devices, to reduce field wiring. 20 All circuitry shall be designed to facilitate the connection to external cabling manufactured to Navy MIL-C-915 and MIL-C-2194 and commercial cable of IEEE-45. All instruments, annunciators, etc., shall be matched in design and appearance, so far as practicable. 25 Audible and visual alarms shall be supplied for mounting in the machinery space to serve as the common signal for all vital and vital-shutdown alarms. A second horn of a different tone for non-vital alarms and miscellaneous functions shall also be provided. Extension audible alarms shall be provided, if necessary, so that alarm sound 30 levels will be audible above normal machinery noise in all parts of the machinery space, including, but not necessarily restricted to the purifier room, the ship's generator room, and the shaft alley. Extension alarms with lower sound levels shall be supplied for the central control room operating station. The vital -shutdown and non- 35 vital audible alarms in the central control room operating station and at remote locations shall be common to all circuits as applicable. All necessary alarm safeguard circuits shall be provided including, but not limited to, interlocks to prevent starting of the main engines until vital permissives have been satisfied, interlocks 40 to prevent starting the engines while the jacking gear is engaged, etc. 99-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Provisions shall be made to prevent actuation of alarms because of ships roll. Non-vital level sensors shall have time delays if necessary to prevent false alarm signals. 4. BRIDGE CONTROL CONSOLE (a) General 5 A free standing console combination for control of propulsion, steering and navigation shall be installed in the wheel house, as per arrangement plan. The console shall be constructed in general accordance with that specified for the central control room operating station console 10 except that an air circulator will not be required, red light illumina- tion with dimmer control shall be provided, and all instruments, switches, indicating lights, cabinets, consoles, etc., shall be of a dripproof construction. Red filters transmitting red light of wave lengths not less 15 than 5,900 angstroms and not greater than 0.34 candela/m (0.1 foot- Lamberts) shall be provided on all instrument lighting which would interfere with night vision of personnel on watch. Light intensity shall be controlled by a series rheostat or a dial illuminator designed for cross dial illumination. 20 The control devices and instruments included on this console shall be systematically interlinked with the corresponding control and monitoring devices in the central control room operating station console and the circuitry shall be so arranged and interlocked that no conflict- ing operations of the propulsion system can take place as a result of 25 possible adverse malfunctions of the controls at either control station under any selected control set-up. Instruments, indicators, panels, etc., shall be designed for flush mounting; handsets, microphones, contact makers, etc., mounted on vertical structure of the console shall be recessed or semi -recessed 30 into the console. The propulsion control section shall incorporate the following: Throttle Control Lever Bridge Control Thrust Lever Position Indicator and light Central Control Thrust Level Position Indicator and light 35 Throttle control transfer selector switches with indicator lights and alarms (Bridge/Engine Room) Engine running indicator lights Propulsion plant mode indicator lights ("normal" or "maneuver") Emergency propulsion trips 40 99-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Propulsion machinery shutdown alarms, which include: Loss of lubricating oil Overspeed Other safety features Propeller shaft RPM indicator 5 Throttle control power failure alarm Starting air pressure failure alarm Bow thruster malfunction alarm Steering gear malfunction alarms Operational instructional nameplate 10 Fire pump control Fire in machinery space alarm Machinery space high bilge level alarm Machinery space watertight door controls Digital clock 15 Engine room control console attendance monitor (one man watch) Duty engineer's alarm system alarm and indication Dimmer control Alarm test and lamp test pushbuttons Alarm shutdown 20 Sound powered telephone to engine room console and engineer's accommodations The Navigation Control section shall consolidate associated navigational aids and communications as described in Section 95. The Steering section shall consolidate the steering control 25 components and steering aids as described in Section 94. (b) Power Supply The bridge console (propulsion control section only) shall be supplied with power from the engine room console. All audible and visual alarms provided on the bridge control 30 console (propulsion control section only) should be actuated when on bridge control and engine room control. In the case of power failure of the propulsion control system, both audible and visual alarms shall be actuated on the bridge and the central control room operating station consoles. 35 5. CENTRALIZED MACHINERY CONTROL SYSTEM (a) Main Engine Control System (1) General The remote propulsion control system shall provide appropriate electric and/or pneumatic signals from the bridge and the 40 99-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION central control room operating station console throttle control levers which shall operate the main engine fuel rack control through the gov- ernor. Control signals shall be of the hydraulic, pneumatic or elec- trical/electronic type. The control system should be made up of four separate 5 circuits: mechanical, high pressure pneumatic, hydraulic and low pressure pneumatic systems. The mechanical system should consist of the fuel control linkage between the governor output shaft and the fuel pumps and of the emergency manual engine control system. 10 The high pressure pneumatic system should consist of the complete engine air starting system, including the main starting auto- matic shut-down valve, pilot starting valve, starting air distributor and the individual starting valves in the cylinder heads. The hydraulic system shall include the engine direction 15 control (reversing) and safety interlock system. Reversing shall be accomplished by moving the throttle control lever through the center position detent and moving it to the astern position. The throttle control lever shall have convenient calibrated reference marks for both the ahead and astern portions. 20 The safety interlock system shall prevent any possibility of mishandling the engine, which should automatically stop in case of failure of the main lubricating system. The hydraulic system should be operated from the main lubricating oil circuit. 25 The low pressure pneumatic system should consist of: engine direction selection control, starting and speed control, and other automatic functions for engine room and bridge remote control. The propulsion control system shall be designed to provide remote control of the direction and magnitude of propeller RPM from 30 either the engine room console or the bridge control station. This shall be done through a propulsion control system to free the operator from concern with timing and sequencing of events, while capitalizing on the unique advantages of the system. These features are inclusive of preventing operation of the air starting system while the engine is 35 running, cutoff of starting air at a predetermined engine RPM, prevent operation of certain alarm circuits before engine pressures have normalized (applicable to engine driven pumps), etc. 99-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (2) Interlock Circuits The engine remote starting controls shall be interlocked to prevent being energized when: Type A Interlock Engine overspeed trip reset in machinery space on 5 engine, has not been reset. Automatic engine shutdown reset at central control room operating station, has not been reset. Emergency engine shutdown reset, at central control room operating station, has not been reset. 10 Type B Interlock Engine lube oil pressure not adequate. Engine jacket water pressure not adequate. Engine piston cooling water pressure not adequate. Engine piston cooling water outlet flow rate not 15 adequate. An override for the Type B Interlocks shall be provided at the engine room console for capability of override in the event of a navigating emergency or checked out control interlock fault. Separate overrides shall be provided for engine starting. 20 (3) Shutdown Circuits The main engine concerned shall automatically shutdown for following listed alarms: Low lube oil pressure, after fault of the standby pump. Engine overspeed (Note — No time delay and no override). 25 Low jacket water pressure. Low injector cooling water system pressure. High jacket water outlet temperature. High injector cooling water system outlet temperature. Automatic shutdown shall always be preceded by a vital 30 alarm, except for overspeed shutdown. Between the vital -shutdown alarm and the vital alarm there shall be a pre-established pressure or temperature differential as applicable. Also the actual automatic shutdown actuation shall be delayed ten (10) seconds from the vital - shutdown annunciation, except for overspeed shutdown. During the period 35 of vital alarm to vital -shutdown alarm with ten (10) second time delay the central control operating station shall have the capability to override the automatic shutdown in the event of a navigating emergency via an automatic shutdown override pushbutton. These override pushbut- tons shall be operable only when the central control room operating 40 station is in control. 99-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (4) Bridge and Engine Room Transfer The following console mounted equipment shall be supplied for use in transferring control between the bridge and the engine room control console. Bridge Mounted Equipment: 5 Bridge control thrust level position indicator. Central control thrust lever position indicator. Engine order telegraph. Bridge and engine room console indicating lights. Control transfer pushbutton. 10 Centralized Engine Room Control Console Mounted Equipment: Engine order telegraph. Bridge and engine room console indicating lights. The following sequence shall be followed in transferring from the engine room console to bridge control: 15 Bridge commands "Bridge Control" on E.O.T. Engine room operating station acknowledged E.O.T. command by placing E.O.T. in "Bridge Control." Acknowledgement of the E.O.T. illuminates the control transfer pushbutton on the bridge. 20 The bridge acuates the control transfer pushbutton and gains control. At this time the engine room console indicating light goes out and the bridge control light is illuminated at all control stations. The following sequence shall be followed in transferring 25 from the bridge to the engine room console under normal conditions: The bridge selects a command position on the E.O.T. The engine room operating station acknowledges the com- mand. Acknowledgement of the E.O.T. command automatically transfers control from the bridge to the engine room 30 operating station and illuminates the proper control indicating lights. It shall be possible to gain propulsion control at the engine room operating station at any time by moving the E.O.T. to a position other than "Bridge Control." Transfer shall be immediate. 35 99-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (5) Local Engine Station Control The system shall be provided with a local machinery space control to provide emergency control in the event of remote control failure and for maintenance purposes, consisting of the following for each engine: 5 Local-Remote selector valve. Bridge in control indicating light. Central control room operating station in control indicating light Machinery space in control indicating light. 10 Engine start valve. Engine stop valve. Emergency engine shutdown valve. Engine overspeed trip reset. (Note—Usually engine mounted.) 15 Engine speed control. Telephone. (Note—Quantity (1) one, refer to Section 95. ) Engine RPM indicator. Engine lube oil inlet pressure gage. 20 Engine order telegraph indicator with reply back transmitter. These devices shall be panel (s) mounted in a convenient arrangement for this station. (b) Exhaust Gas and Auxiliary Fired Boiler Control System 25 The exhaust gas and auxiliary fired boilers shall be completely automatic with summary monitoring of their operations at the engine room console. (c) Ship Service Generator Controls Each ship service diesel generator shall be provided with a 30 remote control system. The control system shall provide for automatic and remote manual starting, stopping, synchronizing and paralleling of each generator. The control system shall also provide automatic startup of the standby generator and load transfer in the event of low voltage or failure of the diesel generator in operation. 35 The generator control system shall consist of instrumentation and controls as required to accomplish the functions described above. The instrumentation and controls for the ship service gener- ator engines shall be on the engine room console while the instrumenta- tion and controls for the ship service generators are on the ship's 40 service generator and distribution switchboard. 99-16 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (d) Digital Clock A solid state type digital clock shall be provided with distribution circuits for use with the digital type data and bell loggers. The clock with local readout display and all adjusting con- trols, including adjustment to ship's time, shall be flush mounted in 5 the bridge propulsion control panel. The system shall be energized from the engine room console 24 volt DC power source. The clock shall have complete operating instructions mounted in a clear cover adjacent to the readout. The clock readout shall be two-tenths of a minute and shall have an accumulative error of not more than +15 seconds in 7 days. 10 There shall be a slave indicator supplied and mounted on the engine room console. (e) Bell Logger A bell logger of the digital type shall be installed in the bridge area to record the following: 15 When the main propulsion plant is controlled from the engine room console the logger shall record time, central control room operating station throttle position, bridge telegraph order, central control room operating station telegraph response, propeller shaft RPM and direction of shaft. 20 When the main propulsion plant is controlled from the bridge the logger shall record time, bridge throttle position, propeller shaft RPM and direction of shaft. Space shall be provided on the printout for manual writing of the ship's name, date and a "Remarks" column for any necessary comments. 25 The digital bell logger shall printout in a tabular form, one set of readings with each movement of the bridge or engine room operat- ing station telegraph. Printout shall be in segment increments and nomenclature identical to the telegraph markings or in a suitably approved code. In addition, the bell logger shall also record all 30 significant changes in the bridge or central control room operating station throttle lever position which results in a propeller RPM change of more than 5 RPM from the last logged information. In addi- tion, a rough weather switch shall be provided on the bell logger which shall increase the logging requirements to 10 RPM for propeller 35 RPM change. Whenever the bell logger is actuated, it shall continue to print-out at twelve (12) second intervals until steady propeller RPM conditions are achieved. Printout shall also be available at any time on demand. 40 99-17 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Upon a malfunction of the data logger, the bell logger shall be arranged for use as an emergency printer. When so used, it need not be fitted to use the data logger format. In the event the bell logger is in use as a data logger, the system shall be so devised as to give priority to the bell logging function. If, under these circumstances 5 a data log printout is stopped, the printer shall initiate a new printout when the bell logging function is completed. Time input for the bell logger system shall be obtained from the digital clock on the bridge control console. The bell logger printer shall be identical to the data logger 10 printer, concerning construction details and specifications. Provisions shall be made to hold a supply of paper for the printer. Two identical printers shall be used for the data logger and bell logger printers. The printers shall be covered with a clear plastic cover. Printer for the bell logger shall automatically print headings 15 after every tenth line of data on blank paper. (f) A data logger of the digital type shall be provided and installed as a portion of the central control room operating station console. The logger shall print automatically every hour and on demand. Off-normal values shall print immediately upon detection. In order to 20 establish operating trends, the following data shall be logged: Time of day. Shaft horsepower (where provided). Shaft torque. Propeller shaft RPM. 25 Main engine turbocharger RPM(s). All propeller shaft bearing temperature(s) . Main engine bearing temperature(s) including thrust bearing. Main engine(s) individual cylinder exhaust temperatures. Main engine lube oil inlet temperature(s). 30 Main engine jacket water outlet tempera ture(s). Main engine injector coolant water outlet temperature(s). Main engine fuel oil/diesel oil inlet temperature. Main engine operating fuel oil or diesel oil flow. Steam pressure out waste heat boiler. 35 Steam temperature out waste heat boiler. Feed flow to waste heat boier, GPM. Feed temperature to waste heat boiler. Exhaust gas temperature out of waste heat boiler. The automatic data logger shall printout in tabular form all 40 items listed to be logged. It shall be of modular design. The logging system shall include all required sensing elements and transducers, scanners, amplifiers, converters, and a data printer. 99-18 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The data logger shall use elements which can be removed from the panel by unplugging. Each element shall be a standardized unit designed for multiple use of minimal spare parts and shall bear perma- nent catalog number, identification and changeable functional identifi- cations. All components on the elements shall be solid state (no 5 vacuum tubes) and static (no contact making devices) except for the scanner and alarm memory circuits, which may use hermetically sealed reed relays or switches not affected by vibration. The data logger shall be arranged for complete accessibility to permit "one-man" maintenance. Trouble shooting aids, such as light, 10 switches and meters shall be liberally supplied on the front face of the access enclosures open for maintenance work. The identification of each element by catalog number shall be affixed to the inside of the anel . The system shall be provided with a fixed logging program 15 which shall be changeable to a minor degree by making minor panel wir- ing changes. The output information shall be tabulated in terms of engineering units. A movable carriage type printer will not be permitted. The printer shall be arranged to automatically print off-normal indicating 20 in red. A preferred arrangement shall permit printing all the input signals listed on a single line so that all printed values for each variable shall appear in a single continuous vertical column. If the number of digits is too great for a single line, a second line may be used. The data appearing on the second line shall be coordinated so 25 that the absolute values appearing in column are of the same magnitude. Proposed log sheets shall be submitted for approval. The logger shall include the counting, registers, central logic and associated devices necessary to produce a typewritten log on an approved form. This will necessarily include signal amplifiers, 30 and analog to digital converters. Upon malfunction of the bell logger the data logger shall be arranged for use as an emergency printer. In the event the data logger is in use, the system shall be so devised as to give priority to the bell logging functions. If, under these circumstances, a data log 35 printout is stopped, the printer shall initiate a new printout when the bell logging function is completed. Time input for the data logger system shall be obtained from the digital clock on the bridge control console. The data logger printer shall be identical to the bell logger 40 printer, concerning construction details and specifications. Provisions shall be made to hold a supply of paper for the printer. 99-19 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Two identical printers shall be used for the data logger and bell logger printers. The printers shall be covered with a clear plas- tic cover. Printer for the data logger shall automatically print headings and format on blank paper. Abnormal values shall be printed out in red type. 5 (g) Main Feed Pumps All main feed pumps shall be arranged for remote starting from the engine room console through a phased sequential starting operation, if required. Successful completion of each major sequential step is a requirement for the following sequential step to commence. Each major 10 sequential step shall have an individual indicator on the engine room console. Should the on-coming main feed pump fail to start, this indication will denote the area in which the sequential starting operation failed to complete. Upon failure of the main feed pump in operation, the standby 15 feed pump shall automatically commence its sequentially starting opera- tion and supply feedwater for the auxiliary boiler and exhaust heat recovery equipment. Generally, the sequential starting operation should be complete in no longer than one minute after initiation. A constant differential pressure type of governor shall be 20 provided for feed pump control, if required. (h) Fuel Oil Service Pump System Each fuel oil service pump shall be equipped for remote start- ing and stopping from the engine room console. Upon failure of the fuel oil service pump in operation, the standby pump shall automatically 25 start and supply fuel oil at the proper pressure to the main engines. An audible and visible alarm shall be activated to indicate failure of the running pump. (i) Central Engine Room Console Attendance Monitor A central engine room console attendance monitor system shall 30 be provided to provide means of alerting the bridge in event of machinery space watchstander emergency. The system shall include on the bridge control console, a master control station contactor, a power on-off switch, power on indi- cating light, a visual and audible alarm, test switches, and a cycling 35 device. The cycling device, console interior mounted shall provide adjustability of fifteen (15) minutes to two (2) hours. On the engine room console a reporting pushbutton shall be provided with a visual and audible buzzer alarm to remind the watch- stander to depress the report pushbutton. 30 99-20 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Visual and audible alarm buzzer shall actuate five (5) minutes before the alarm sound on the bridge. The system shall be designed so that depression of the report- ing pushbutton for a period exceeding twenty (20) seconds shall also sound the alarm in the bridge. 5 Power supply shall be from the 115 volt, 60 cycle, single phase but of the central control room operating station console. (j) Engineers' Assistance Needed Alarm System An engineers' assistance needed alarm system shall be provided. This alarm shall produce a tone separate and distinct from the general 10 alarm or other audible signals and the system shall cover the passage- ways and lounge areas of the licensed engineers' quarters. The alarm shall be capable of being heard in all rooms with the doors closed. The contact maker shall be located on the engine room console. The engineers' assistance alarm shall be arranged to be auto- 15 matically sounded upon power failure of the engineering trouble alarm system and when the engineering trouble is not acknowledged from the engine control room station within a reasonable period of time. Power shall be from the general alarm power supply. (k) Duty Engineer's Alarm Panel 20 One Machinery monitoring panel shall be provided at the engi- neer's quarters of the ship and shall be connected to the engineering trouble alarm system. The engineering trouble alarm or "alarm" as used herein, is the system or systems which respond as the alarms on the engine room control console. The panel shall consist of the following 25 alarms and indicators: Fire engine spaces Alarm and indicator High bilge level Alarm and indicator Machinery plant critical Alarm and indicator Machinery plant non-critical Alarm and indicator 30 Steering gear malfunction Alarm and indicator Upon the automatic sounding of the engineer's duty alarm, the engineer responsible for that watch shall report to the monitoring panel and acknowledge the call by releasing the alarm. An on-off switch in each licensed engineer's room and lounge shall energize the alarm 35 system. A separate fire alarm shall sound throughout the engineer's uarters and lounge spaces. Depressing the fire indicator on the panel shall notify the bridge of fire in the engine room and silence the alarm. 99-21 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The duty engineer's alarm panel shall also include a duty status indication for each engineer and an acknowledgement button whereby he can inform the bridge that he is available and answering the alarm call. An alarm is provided on the bridge console if the alarm call is not answered within two minutes. 5 (1) Fire Fighting Stations A fire detection system shall be installed throughout the machinery spaces. The system shall be carefully selected based upon its sensitivity and compatibility with the environment. The fire fighting control station shall be located in a single 10 accessible location outside the machinery casing. Control of all systems or functions relating to fire protec- tion of the machinery space should be centralized at this location. The station shall be provided with alarms, devices, and remote manual controls for the following listed: 15 Stopping the machinery space ventilation blower and closing dampers. Stopping all machinery forced draft blowers. Stopping all fuel oil transfer, diesel oil transfer, fuel oil service pumps. 20 Stopping all fuel oil centrifuges. Closing machinery space skylights. Closing watertight and fire-resistant doors. Closing suction valves from fuel -oil settling or day-service tanks. 25 Starting emergency generator. Fire pump start/stop controls and fire main pressure gage. Control of fixed extinguishing system. Closing the shaft alley door. Power available indicating light. 30 Lamp test pushbutton. Acknowledge pushbutton. Fire in machinery space alarm. Bilge level alarms. (b) Bilge Pumps 35 Automatically controlled bilge pumps shall be provided for the engine room and shaft alley bilges. Pumps shall be: (1) "backed- up" by bilge level alarms which will sound when pumps fail or are inadequate to control floodings, (2) monitored to detect excessive running, and (3) equipped with an alarm and automatic shut-down in the event oil is detected in the pump discharge. 40 99-22 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (n) Shaft Horsepower Indicating System A shaft horsepower indicating system shall be supplied. System shall be capable of being used in sea trials and/or permanent installation for accurately determining the magnitude of continuous average rotational torque in conjunction with the simultaneous shaft 5 speed in RPM, and the shaft's known Modulus of Rigidity to provide a continuous, instantaneous, direct shaft horsepower indicator readout. Thus, the amount of power produced by the propulsion plant and trans- mitted into the propeller is displayed. This power shall be compared to the fuel consumed during the same period to ascertain the specific 10 fuel rate, which reflects plant efficiency. The system shall include a shaft sensor unit on a section of the line shafting, a propeller tachometer, multiplier and indicators showing the instantaneous shaft RPM, torque and shaft horsepower. This system shall be capable of measuring the shaft horsepower 15 in both ahead and astern rotational direction of the shaft, with equal accuracy. Shaft horsepower indicator may be included in the control panel or remotely located on the central control console and bridge con- sole for use with bridge propulsion control. A digital print-out tape 20 may be employed in lieu of a strip chart recorder. The shaft horsepower meter system shall be capable of an accuracy of +1% of full scale. All electronics included into this system shall be of solid-state design. Shaft horsepower, torque and RPM output signals shall be 25 furnished for inputs to a data logger. This system is to operate from the ship's input power of 115 volts AC, 60 Hz and the readout shall not be affected by line input variations in voltage of +7 volts and +3 Hz frequency. The input line power shall be isolated from the secondary measuring low voltage by an 30 isolation stepdown transformer. The input power supply shall be connected to the engine room I.C. distribution panel. (o) Machinery Performance Monitoring System (If provided) A machinery performance monitoring or trend analysis system 35 may be provided to serve as a diagnostic or evaluation aid for main- tenance scheduling and overall machinery economic performance. The system should be designed so as to provide a thorough analysis of the machinery elements to be monitored on a continuous, realtime basis in order to enhance failure detection and optimize machinery maintenance/ 40 repair scheduling. 99-23 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Continuous monitoring of the selected machinery operational parameters should be compared to previously determined baseline data to establish trend analyses for those parameters, thus providing operating personnel both historic and on line data in logical, easily understood language for rapid evaluation. Basic computations evolve from design 5 data and sea-trial performance of the chosen parameters. Monitored data may then be stored in some manner such as magnetic tape cassettes so that the information may be retrieved for direct comparison to baseline data. The system should be designed to be completely independent of 10 the monitored components and should in no manner rely on, interfere with, or affect the operation of the ship's power plant. In addition the system should be of an automatic, computerized, self-monitoring, intrinsically safe nature capable of reliable performance under the environmental conditions stated in Section 1.15 and 99.2 of these 15 specifications. The parameters to be monitored and type of sensors used are left to the discretion of the Owner provided they comply with the design criteria established by the Regulatory Bodies and are properly installed in accordance with good marine practice. All electrical, electronic 20 components and power supplies for the system shall be in accordance with the applicable sections of these specifications and the central computer or processing unit shall incorporate a power fail safe automatic restart feature in the event of a power supply failure or interruption. In general, the electrical power supply, display console construction, 25 alarms, visual and audible indicators, selector switches, pushbuttons, and other circuit devices shall be in accordance with the requirements of Section 99.2 of these specifications for engine room control console construction. The system, in general, should be comprised of the following 30 components: sensors, acquisition stations or transmitting units, computer or central processing unit (analog/digital), recording unit for memory and data storage, display unit, and the associated wiring, keying or call devices, alarms, hard copy or teletype printer and other components necessary to accomplish the data acquisition and display. 35 The console display unit for the system should be located in the proximity of the centralized engine room console or may be a portable unit which can be safely moved to the desired location, plugged in for data read out and then stowed in an approved manner when not in use. The display modes shall be optional and may be of the TV or CRT type, 40 hard copy printer or data logger readout; however, any condition which exceeds the present allowance limit from the established baseline shall initiate an audible and/or visual alarm signal to the operator instan- taneously in addition to providing an automatic or manually keyed readout of the situation. Such an off limit condition shall activate the alarm 45 signals until corrective action has been taken or the operator has acknowledged the alarm signal by means of an acknowledgement device which instructs the computer that preventive maintenance or corrective action has been initiated. 99-24 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Various parameters may be monitored to optimize the utiliza- tion of the system as desired. Examples of parameters which may be monitored to analyze machinery performance include but are not neces- sarily restricted to the following items: exhaust gas temperatures; lubrication pressures and temperatures; compression pressures; excessive vibration; shaft torque/horsepower; jacket water temperature; heat exchanger efficiencies; turbo charger performance; crankcase pressure; fuel flow, temperatures, viscosity and pressure; critical fluid level indicators; shaft bearing temperatures, overspeed, and engine RPM and actual operating time. In general, the system sensors may be placed in any critical area to measure parameters that meet the operational requirements of the Owner in planning maintenance procedures and obtaining optimum machinery performance. (p) Main Engine Service Time Clocks Automatic cumulative engine operating hour meters shall be provided for each main engine. Meters shall be connected directly into the respective engines stop-start function to operate automatically whenever engines are running. 6. SHIP CONTROL SYSTEMS (a) Engine Order Telegraph System There shall be installed an engine order telegraph system of an electrical self-synchronous type with instruments located as follows: 10 15 20 Location Instruments Wheel house, in Bridge Control Console, Propulsion Control Section Central Control Room Operating Station Console, Propulsion Control Section Bridge Wings, Port & Stbd. Local Engine Station Control 1 --Transmitter with indicator, S.E.D.F. ■ operated with 76 mm relay-back Lever (3 in) bell 25 1 — Indicator with replay-back transmitter, S.E.S.F., knob operated with 203 mm (8 in) bell l--Indicator, S.E.S.F., 192 mm (6 in) diameter dial mounted on outside bulkheads of wheel house both port and stbd., watertight. 1 --Indicator with replay-back transmitter, S.E.S.F., knob operated with 203 mm (8 inch) bell. 30 35 99-25 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The flush mounted instrument, having a knob-operated handle shall have the "ahead" position on the dial to the operator's right. The system shall provide input signals to record the engine order commands and replies as part of the bell logger. The console mounted instrument will connect to a bell within 5 the console so that the bell will ring when an order is transmitted and continue to ring until the order is properly acknowledged. A wrong direction audible and visual alarm shall be installed on the engine room and bridge consoles. Controlling contact shall be operated by the shaft revolution sensing system and the ahead and astern 10 position of the engine room operating station throttle level position. The alarm circuit shall be de-energized when transmitter and reply are in "Bridge Control," "Finished with Engine," "Stand-by," and "Stop" positions. The following order shall be provided on all instrument dials: 15 Stop Bridge Control Finished with Engine Standby Astern-Dead Slow Ahead-Dead Slow Astern-Slow Ahead-Slow Astern-Half Ahead-Half 20 Astern-Full Ahead-Full The dials for all instruments shall be white with black (for ahead) and red (for astern) letters marked so that the dial markings and position of pointers are clearly visible at all times. System shall be energized from the 115 volt ac, single phase, 25 central control room operating station interior communication panel. (b) Systems Test and Inspection (1) Regulatory Body Test Procedures Test procedures on the centralized control system in accordance with Regulatory Body requirements shall be prepared. 30 (2) Manufacturer's Factory Tests The centralized control system shall be factory tested to insure proper functioning prior to shipment. The instrumentation and alarm systems including sensors, transducers, and information display shall be tested as follows: 35 99-26 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (a) Sensors and Transducers: Tested and calibrated on a parameter equivalent to service conditions. (b) Information Display: Simulation of signal input. The control systems, such as the throttle control, shall be tested and calibrated using analog inputs to simulate actual ship- 5 board operating conditions. The seller shall subject the electronic equipment to a "burn in" period. 7. A comprehensive preventative maintenance schedule shall be provided to comply with Regulatory Body requirements. Schedule shall provide the 10 recommended time periods for equipment and systems inspections, main- tenance requirements, spare parts inventory control requirements and the necessary testing to determine the condition status of systems and components of the machinery plant. 8. SPARE PARTS 15 See Section 86 for policy governing spare parts, both on-board and shore-based. 99-27 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION TOO PLANNING AND SCHEDULING, PLANS, INSTRUCTION BOOKS, ETC. 1 . GENERAL The Contractor shall prepare a plan and correspondence procedure which sets forth the procedure for handling all material specified in 5 this Section. Distribution to the Administration shall cover all items listed in the Subsidy Contract covering Document and Data to be fur- nished to the Board. A pro forma plan and correspondence procedure shall be submitted to the Administration for review and comment. 2. PLANNING AND SCHEDULING 10 The Contractor shall perform planning and scheduling functions as required to establish an orderly and systematic construction program and to facilitate completion of the contract work. The Contractor shall submit his schedules and progress data to the Purchaser and the Administration. 15 (a) Master Erection Schedule The schedule shall show the proposed start and completion dates for the fabrication, assembly, erection and/or installation of the principal items and systems which comprise the ship. It shall include, but not be limited to, the major hull structural sections, 20 machinery components, piping systems, electrical items and systems, ventilation and air conditioning systems and joinery items. The schedule shall also show the key event dates of all other work under contract in the shipyard and the relationship to construction facilities schedules. 25 The Contractor shall complete and distribute the initial issue as soon as practicable after award of the contract. Revisions shall be made as necessary to suit changes in the Contractor's scheduled key event dates. (b) Plan Schedule - Working Plans 30 Within sixty days after award of the contract, the Contractor shall submit a schedule of proposed working plans including all required installation or arrangement plans even though prepared by a sub- contractor. The schedule shall contain the following: Contractor's plan number for each plan listed, the scheduled date on which each plan 35 will be submitted for approval, columns for recording the actual date(s) of the initial submittal, the date(s) of approval of each plan, and a column to identify the latest alteration (by letter or number) of each plan. (The schedule shall identify which plans are required to be submitted to the Purchaser, the Administrator, and each Regulatory Body 40 for approval, review, or information only.) 100-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The schedule shall be revised to show all changes, progress and delays, and submitted monthly during the first six months of the contract and bimonthly thereafter, in time to be received by the Admin- istration and Purchaser no later than the 10th of each month. After delivery of the first ship and when the plan schedule has been essentially 5 completed, submittals can be eliminated and a final copy issued after all changes have been noted. The Administration will furnish a sample form if requested. The Contractor's plan schedule shall list all construction plans, procedures, diagrammatics, design calculations, and outfitting lists required to construct and outfit the vessels. 10 (c) Material Control Schedule As soon as practicable after the date of award, the Contractor shall submit in suitable form, a schedule for material to be purchased by the Contractor (exclusive of such items as "stockroom" materials). In 15 general, the items listed should be those for which a purchase specifica- tion or similar descriptive data is required to be submitted for approval. Separate schedules, if practicable, shall be submitted for Hull, Machin- ery, Electrical and Commissary material. The schedule format shall provide for the following information: description of equipment; name 20 of Vendor; commitment date; purchase specification and purchase order numbers; scheduled and actual dates for the submittal of purchase specifications, purchase order issue and release for manufacture; and the required and actual delivery dates of components for each ship. The schedules shall be revised to show all changes and progress, and copies 25 of the first six revisions submitted monthly and subsequent revisions bimonthly until all listed items have been received in the yard. Sub- mittals are to be made in time to be received by the Administration and Purchaser no later than the 10th of each month. The Administration will furnish a sample form to be used for guidance, if requested. 30 3. PLANS AND PURCHASE (TECHNICAL) SPECIFICATIONS The Contractor shall obtain the required approval of all plans, purchase (technical) specifications, calculations and other technical documents necessary to perform the contract work. In submitting an item for approval, the Contractor shall invite attention to all departures 35 from the contract plans and specifications and subsequent letters of instruction received from the Purchaser. When this requirement is not complied with, approval of items shall not constitute approval of any departures. Approval of items shall not in any case relieve the Con- tractor of the responsibility of satisfactory material, installation 40 and operation of any items involved. 100-2 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION As indicated in the Subsidy Contract, the Administration will review selected "key" plans and submit any comments to the Purchaser for appropriate action. Plans submitted shall be folded individually in accordian fashion to approximately a 360 x 230 mm (14" x 9") rectangle with title block 5 exposed in lower right-hand corner. Plans shall be of such drafting quality and have lettering and numbering of such size as to provide easy reading and reproduction capability. All material lists, spare parts lists, replacement parts lists, 10 etc., whether prepared by the Contractor or any sub-contractor or vendor shall include ASTM, SAE or equivalent material specification and shall include the original manufacturer's names and replacement part numbers of all components in addition to vendor's part numbers. Where trade association designations are commonly used, such as AN numbers for "0" 15 rings and AFBMA for bearings, such designations shall be used. Where anti-friction bearings are utilized, certification as to suitability for the intended service shall be obtained from the bearing manufacturer and shown on plans. "Working Plans" as used herein include all plans required for the 20 construction of the ship as listed on the Plan Schedule. Working plans shall include all required installation plans even though prepared by a Sub-Contractor. The Contractor shall furnish to the Purchaser a copy of all comment letters received from Regulatory Bodies. 25 Alterations on plans previously approved shall be concisely described in an alteration column and shall be submitted for approval as required, except for minor alterations which only require distribu- tion upon issue for production. Symbols identifying the alteration shall appear in all areas of the plan affected by the alteration. Alter- 30 ations due to Contract changes, shall be clearly labeled with Contract change number in order to distinguish them from design developments and other corrections to plans due to plan approval comments. The latest alteration of the plan shall be clearly marked in the title block of the plan. Applicability of a particular alteration to a particular 35 hull shall be clearly indicated by noting the hull to which applicable in the alteration column. However, alterations applying to only particu- lar hulls of a group should not affect the indication of the original arrangement and details on the plan for previous hulls. All materials shown on plans shall be identified by an appropriate 40 material specification or its equivalent. 100-3 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION The standard welding symbols adopted by the American Welding Society shall be used exclusively on all plans. (b) Diagrammatic Plans Diagrammatics shall be submitted for principal shipboard pip- ing, ventilation and air conditioning and electrical system, prior to 5 submittal of system arrangement plans. They shall show the relative location of valves, branches and equipment as a guide to final arrange- ment drawings. Diagrammatic plans shall be of a size which retains legibility when reduced for insertion and binding in an operating and/or instruc- 10 tion manual. Prior to binding all such plans, the Contractor shall correct all diagrams to agree with the actual installations and supply bound sets as required. The diagrammatics shall contain complete information such as pump and fan characteristics, pipe or duct sizes, materials, flows, velocities (normal and maximum), pressure drops, and other pertinent 15 design data such as associated components, identification and operation characteristics, including all control and alarm settings. (c) Booklet of General Plans For the purpose of having the ship's plans of general arrange- ments, decks, profiles, bulkheads, fittings, etc., in convenient form, 20 a "Booklet of General Plans" for ready reference and consulting purposes showing as much accurate and detailed information as practical, shall be prepared using a scale of 1.59 mm = 305 mm (1/16" = I'-O") or other appropriate scale. The booklet shall be revised and submitted every 6 months, reflecting revisions occurring during that period. Each issue 25 and all revisions to the Booklet Plan shall be submitted to the Adminis- tration and the Purchaser. Revisions of major proportions, however, shall be transmitted within 60 days following the alteration to the plan. The first issue shall be submitted within 6 months after signing of contracts. Plans comprising the "Booklet of General Plans" are listed 30 below and shall be arranged in the following order: Cover or title page Date Sheet of general dimensions and data showing: General characteristics Deadweight, displacement and light ship weight 35 Tables of hold and tank capacities Type of power plant, power (horsepower) and ship speed Propeller Generating plant Steering gear 40 Deck machinery ABS Equipment Numeral 100-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Lifeboat and davits Complement Outboard profile Inboard profile, showing molded deck heights Superstructure (deckhouse) decks and housetop 5 Decks, a plan of each deck and platform Innerbottom Midship and cross sections, indicating scantlings and details of construction and molded heights of decks above the base line. The scale of the cross sections shall be 3 mm = 10 305 mm (1/8" = l!-0"). Shell expansion plan The general principles in the preparation of the booklets shall be as follows: Detail arrangement of spaces is not desired except to show use 15 or occupancy. The general arrangement of furniture and equipment in staterooms, offices, and similar spaces shall be shown where practicable, but in as little detail as practicable. Berths shall be marked single or double. Type, location and swing of all access shall be shown. 20 Trace in airports and windows on deck plans and outboard profile. Indicate the height of all masts, and any other items which may be higher than the masts. The "Booklet of General Plans" shall be prepared on tracing 25 cloth, or equivalent, not over 760 mm (30 inches) wide. Space shall be allowed between the several deck plans or profiles for cutting the prints into pages. The tracings shall not be cut up into pages but shall be retained in long sheets. Photographic reduction of larger scale working plans will be considered. Prints of the booklet shall be 30 fully trimmed and assembled by the shipyard prior to distribution. Each page on a sheet shall be of uniform width of not over 230 mm (9 inches) overall to the cutting line and of uniform length. For the inboard and outboard profiles on which masts are shown full height, the page may be 450 mm (17 1/2 inches) wide, or more, and 35 arranged for folding in the booklet. A margin of 6 mm (1/4 inch) shall be allowed outside the border of each page. The cover of the booklet shall have a title block and an alteration table to show the last date on which the tracing was corrected. 40 100-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All plans comprising the booklet shall be assigned the same plan number followed by individual sheet numbers and the total number of sheets involved, e.g., sheet 1 or 3, etc. Copies of the booklet shall be assembled so that each plate will open out flat and so that the completed bound blueprint assembly of 5 the booklet when closed will be half as long as the individual plates. (d) Purchase (Technical) Specifications, Requisitions, and Purchase Orders The Contractor shall submit purchase (technical) specifica- tions, requisitions, or similar descriptive data for approval prior to 10 purchase. Each such document shall contain a full technical descrip- tion of the material to be ordered. Upon placement of purchase orders, unpriced copies shall be submitted for information. Correspondence, technical data, etc., affecting design features of Vendor items shall be promptly furnished to the Purchaser and the Administration. 15 (e) Vendors' Plans and Vendor's Plan Lists "Vendors' Plans" as used herein denote plans, calculations, stress analyses, etc., developed by other than the Contractor as neces- sary to show the suitability of the machinery, equipment, and appurte- nances for use in the contract work. Plans shall indicate specific 20 application and show MarAd and Contractor's hull number, purchase order number, Purchaser and MarAd design number. The Contractor shall also provide a Vendors' Plan List of vendors' plans for manufactured equipment including, where appropriate, design calculations. The format shall include space for manufacturers' 25 plan numbers, plan titles, and identification of equipment. The initial list shall be submitted as early as practicable after the Contractor begins to receive information from vendors as to the plans the vendors propose to furnish and the scheduled dates for submittal of plans for approval. These data shall be reissued every three months to show the 30 current status reflecting additions, deletions or alterations to plans and schedule and actual dates. The Vendors' Plan List shall also include material and equipment plans to be produced by major subcon- tractors such as joiner, refrigeration, ventilation and insulation sub-contractors, etc. However, installation and/or arrangement plans, 35 prepared by a sub-contractor, should be included in the Working Plan Schedule. The Vendors' Plans shall include the following: (1) Outline plans, with overall and mounting dimensions, weight, performance curves and data. 40 100-6 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (2) Plan, evaluation, and sectional assembly drawings, as necessary, to identify all parts with material lists which shall include original manufacturer's part number and material specifications. Weight and overall dimensions of major assemblies such as the propulsion engine and major auxiliaries shall be shown along with journal and thrust 5 bearing sizes and clearances, critical clearances between rotating or sliding parts and similar data. (3) List of spare parts. (4) Speed, torque, power and stress calculations for all items of weight handling equipment which are to be submitted simultane- 10 ously with, or in advance of, the submittal of outline and arrangement drawings and well in advance of release to manufacture dates. Suffi- cient design data shall be submitted as to ensure suitability of the equipment for the intended purpose. Submittal and approval of Vendors' plans may be waived 15 for equipment which is identical to equipment which has been furnished on a previous contract for the same Purchaser and is in full compliance with the specifications, subject to certification of its identical nature and the Purchaser's approval based on satisfactory service experience with the previous application. 20 (f) Expediting The Contractor shall expedite all facets of the work consis- tent with the schedules. Should special assistance be required due to conflicts with contracts rated under the Defense Materials System, requests to the Administration shall be submitted on Department of 25 Commerce, Bureau of Domestic Commerce, Form DIB-999 with complete information. 4. REPORTS AND PHOTOGRAPHS (a) Force Report The Contractor shall submit to the Administration a monthly 30 force report on a per ship basis. Each report shall show the total number of employees on the Contractor's roster, and number of workhours expended on each hull during the period covered, and the cumulative number of workhours expended on each hull from date of contract award. The report shall include sub-contract workhours expended directly on 35 the vessel as a separate entry. This report will be handled by the Administration on a classified basis and is to be received no later than the 10th of each month. (b) Steel Report The Contractor shall submit to the Purchaser and the Adminis- 40 tration a monthly progress report on the status of structural steel. 100-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION This report shall be on a per ship basis, and shall state, in metric tons (short tons), the estimated total metric tons (tons) required, metric tons (tons) ordered to date, metric tons (tons) received to date, metric tons (tons) fabricated to date, metric tons (tons) sub-assembled to date, and metric tons (tons) erected to date. This report is to be received no 5 later than the 10th of each month. (c) Construction Progress and/or Payment Report As soon as practicable after the date of award the Contractor shall submit, for approval by the Administration, his proposed Construc- tion Progress and/or Payment Report form. The form shall contain item 10 descriptions reflecting the Contractor's cost account groups with points assigned reflecting the relative value of delivered material, labor, and the total in appropriate columns. The total point value representing the contract price per vessel shall normally be ten thousand points. Thereafter, the approved form shall be used to show percentages 15 of completion and submitted as follows: (1) in support of requests to the Administration's Division of Accounts for progress payments, pursuant to the provisions of the construction contract, and (2) to the Purchaser and the Administration's Office of Ship Construction, for progress information, to be received on or before the 10th of each month. 20 (d) Change Order Status Report The Contractor shall submit quarterly reports to the Purchaser and the Administration on the status of all change orders and inquiries for change. The report shall include the change inquiry number or change order number, MarAd change number (when assigned), a brief description 25 of the change, and preliminary and final costs, when determined. (e) Photographs Showing Monthly Progress The Contractor shall submit monthly progress photographs illustrating progress of work: two external views, one from forward looking aft and one from aft looking forward from an elevation and dis- 30 tance that will provide views of the entire uppermost continuous deck, all incomplete hull structure and the entire superstructure and deck house as applicable. These views should be taken from a location at least 0.52 radians (30 degrees) off the center line. In addition, at launching and thereafter on a monthly basis the following interior 35 photographs shall be submitted: 1 in Engine Room 1 in Accommodation Area 1 in Cargo Tank Area 100-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Also, prior to delivery a broadside view of the completed ship. Each photograph shall be adequately titled and dated for identi- fication of the area included. For the first ship only, the Contractor shall take at least 30 photographs of the finished vessel showing all major portions of the 5 vessel, furnishing one set each to the Purchaser and the Maritime Admin- istration. The views to be taken should be agreed to by the Purchaser's representative and the Administration's Construction representative. 5. INSTRUCTION BOOKS Instruction books and plans covering operating and maintenance 10 instructions for all main, auxiliary, electrical, electronic and miscel- laneous machinery and equipment, including pollution abatement systems and equipment, cargo oil system, galley and pantry equipment, naviga- tional equipment, fire detection and extinguishing equipment, air condi- tioning, heating and ventilation systems including pneumatic control 15 systems, power operated and control valves, etc., shall be furnished by the Contractor to the Purchaser for approval. The Contractor shall pre- pare a list of instruction books which are expected to be furnished by name of equipment and vendor's name. The list shall indicate anticipated dates of submittals for approval. It shall be kept up-to-date monthly 20 and shall form the basis for final list of approved instruction books under the contract. Submittal and approval of instruction books and plans may be waived for equipment which is identical to equipment which has been furnished on a previous contract for the same Purchaser and is in full compliance 25 with the specifications, subject to certification of its identical nature and the Purchaser's approval based on satisfactory service experience with the previous application. All plans, wiring diagrams, maintenance and repair instructions, equipment, descriptions, trouble shooting procedures, operating instruc- 30 tions, test procedures to evaluate the operation and safety features of the complete system, etc., developed by the Vendor for the centralized engine room and bridge control shall be compiled together into one instruction book. After approval, the Contractor shall distribute final copies. Covers shall be of satisfactory quality, oil and water repel- 35 lent with necessary identification information on front. 6. ENGINEER'S OPERATING MANUAL The Contractor shall prepare an Engineer's Operating Manual based on the design and construction data. The book shall be prepared in preliminary form and be submitted for approval sufficiently in advance 40 of ship completion to permit completion and delivery of the finished books to the ship not later than the delivery date of the ship. 100-9 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Forty-five days shall be allowed for approval. The manual shall provide complete instructions for the operation of all engineering, piping and electrical systems and related equipment, as well as for the cargo tank venting system and the inert gas system. The manual shall be prepared in such a manner that it may be readily under- 5 stood by operating personnel of limited experience and brief training, previously unfamiliar with the equipment and functions of the installa- tion. It is intended that this manual act as a supplement to the manu- facturer's instruction books on the individual pieces of equipment, and duplications of the material contained therein are not desired. The 10 manual shall be bound in durable hard covers. The following shall be included in the description of each system: Index List of pertinent references, including diagrammatics and manufac- turer's instruction books. 15 General description of the system, and detailed descriptions and directions for operation, with reference to diagrams. Special attention shall be paid to emergency and standby services. It shall include text describing arrangement and illustrative plates, which shall show arrangement of all equipment in the machinery spaces, 20 and each piece of equipment shall be designated by name and number. Warnings as to possible hazardous modes of operation, precautions required to minimize equipment damage and possible crew injury shall be included in the text, either by means of a different type face, under- score, or an alternate print color. 25 The book shall also include a simple straight line diagrammatic representation of each piping and ventilation system, with each component identified. The design functions and design limitations of each piping system shall be discussed and detail directions for operation of the system provided. 30 Diagrams shall not exceed 280 mm (11 inches) in height and 920 mm (36 inches) in length. Operating charts, where provided, shall be above or below the applicable diagram and folded over the diagram. A blank space, equal to the width of the text page, shall be provided on the left end of the diagram. 35 A tabulation of all machinery units shall be included, giving design functions and limitations, information for understanding and operating the piping system, expected operation conditions, etc. 100-10 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION After approval, the Contractor shall distribute copies of the Engineer's Operating Manual as required. 7. ALLOWANCE LIST AND BUILDER'S RECEIPT The Contractor shall prepare for the Purchaser's approval complete Allowance Lists of all portable and readily removable equipment, tools 5 and spares required to be on board at time of the ship's delivery. Mechanical and electrical installations for which spare parts, special tools, or accessories are required shall be listed with all essential characteristics. The Allowance List shall be prepared in accordance with these specifications and the latest revision of the Administra- 10 tion's "Procedure for Compiling a Combined Allowance List and Builder's Receipt." Allowance List entries involving material serving the same piece of equipment, driving or driven elements, or consolidated spare parts involving more than one group shall contain complete cross-referencing 15 by group, page and line number to each group. The Contractor shall furnish four sets of the completed Allowance List for representatives of the Purchaser and Contractor to record the joint physical inventory taken at time of the ship's delivery. The inven- tory shall be recorded in one set which shall become the original inven- 20 tory. The other three sets shall be conformed copies of the original. The original and two sets shall be signed by representatives of the Purchaser and Contractor. The Purchaser shall receive the original set. The Contractor and the MarAd Construction representative shall each receive a signed set. The unsigned set shall be furnished to the ship. 25 The Mar Ad Construction representative shall also receive a list of overages and shortages agreed upon by the Purchaser and the Contractor. Two additional sets of the final Allowance List, with or without inventory entries, shall be furnished to the Purchaser. 8. MACHINERY AND EQUIPMENT IDENTIFICATION LIST 30 The Contractor shall supply for each vessel an identification list in booklet form giving nameplate data, including serial number and American Bureau of Shipping certification data where applicable, of each piece of machinery and equipment on the ship. This shall include vent fans, and motors, deck machinery, galley equipment, ground tackle, 35 shafting, propeller, electronics gear, etc. Two copies of the booklet shall be furnished each vessel, also three copies to the Purchaser, and one copy to the Administration. 9. FINAL PLANS (TRACING AND MICROFILM) (a) Tracings and Microfilm 40 100-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION All Contractor's plans shall be brought up to date and stamped "Final - As Built" with all alterations necessary to reflect the ship as finally constructed. Tracings and microfilm shall be provided to the Administration and to the Purchaser in accordance with the schedules below as soon as practicable but not later than 75 days after delivery 5 of the last ship of a contract. (b) Administration Requirements (1) Tradings (Mylar) Booklet of General Plans Midship and Type Section Plans 10 Capacity Plan Complete lines Offsets, including offsets on frames Arrangement of Machinery - plans, elevations, and sections Docking Plan Shell Expansion 15 Stability Booklet (2) Microfilm Two sets of 105 mm film negatives in accordance with Maritime Administration Specification 18-MA-15 of latest issue shall be furnished of all working plans and major calculations, after final alteration and 20 pproval, as listed in the final plan schedule. No films are required of material requisitions or Vendors' plans, except those for switch- boards. Installation and/or arrangement plans prepared by a sub- contractor are considered working plans. A paper copy of a complete index of the 105 mm film negatives 25 shall be prepared and submitted to the Administration for approval prior to photographing. The cover sheet shall show the Ship's Design Designa- tion, Builder's and Purchaser's names, Construction Contract number, and Maritime Administration and Builder's hull numbers with data of comple- tion for each vessel. The body of the index shall be arranged 30 numerically by Builder's plan numbers and latest alternative symbol. Two sets of approved index shall be furnished on 105 mm negatives. (c) Purchaser's Requirements (1) Tracings (Mylar) Items under 9 (b) (1) above, as listed for Administration 35 use, and in addition at least the following: Inboard profile and General Arrangement Arrangement of all decks, cargo tanks, and accommodations 100-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Tank calibration and sounding tables for even keel with corrections for trim. Ullage tables also shall be pro- vided for liquid cargo tanks provided based on sampling lines location or on tank top manhole if no sampling line. 5 Location of safety devices Diagrammatic and Arrangement Plans of all piping systems, ventilation ducts, valve operating gear Compartment Testing Plan Hydrostatic Curves Outboard Profile * 10 Body Plan Rigging Arrangement with rope and block list Stern Frame and Stern Tube Rudder and Stock Stem 1 5 (2) Microfilm One set of 105 mm film negatives of the working plans required under 9 (b) (2) above for which 105 mm film negatives shall be furnished the Administration, shall also be furnished to the Purchaser. At the option of the Purchaser, aperture cards may be substituted for conven- 20 tional microfilm. 10. PLANS AND CHARTS FOR MOUNTING One "Metal Photo" graphic lamocoid or equal chart of each of the following plans of the ship as actually constructed shall be provided and mounted as specified in Section 24 in suitable locations in the ship 25 as directed. Ventilation, heating and air conditioning arrangement and instructions (to be posted in fan room) Gyro compass and gyro pilot arrangement, wiring diagram and instructions 30 Instructions for cold ship starting (installed in Emergency Generator Room) Electric power system, single line wiring diagram F1re fighting and damage control systems (diagrammatic, including hose station markings, and hose sizes) and 35 safety equipment list Fire extinction and smoke detection systems (diagrammatic) Bilge system (diagrammatic) Ballast system (diagrammatic) Cargo oil system (diagrammatic) 40 Fuel Oil transfer system (diagrammatic) Tank oil transfer system (diagrammatic) Fire main system (diagrammatic) 100-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Steering gear, arrangement, wiring diagram and operating and lubrication instructions Anchor windlass arrangement, operating and lubricating instructions Constant tension mooring winches, operating instructions 5 Main and emergency switchboards, detail wiring diagrams Instructions for operating Emergency Generator (to be mounted in Emergency Generator Room) One-line diagrams of ship's electric power and lighting distribution system 10 Cargo Hose Crane operating and maintenance instructions Cargo Tank Venting system Inert gas system Arrangement plans showing for each deck the various fire retardant bulkheads together with particulars of the fire detecting, manual alarm 15 and fire extinguishing systems, fire doors, means of ingress to the different compartments and the ventilation systems including the posi- tions of the dampers, the location of the remote means of stopping the fans with the identification of the fans serving each station. Three prints of the Capacity Plan (with deadweight scale) shall be 20 furnished and mounted in passageways as directed. Piping system diagrammatics shall be stowed in a suitable rack located on or convenient to main engine room console. 11. PLANS (PRINTS) FOR PURCHASER'S OFFICE USE AND FOR FILING ABOARD SHIP (a) For Purchaser's Office Use The Purchaser shall be provided with two complete sets of prints of all plans, calculations and design data for office use as listed in the final edition of the Contractor's Plan Schedule to their latest approved alteration as occurring and, similarly two complete 30 sets of plans and calculations as listed in the Vendor's Plan List. These sets of plans shall be completed and furnished prior to delivery of the first vessel. Corrected plans showing alterations applying only to succeeding vessels also shall be furnished as occurring to the extent necessary to correctly show each vessel delivered under contract. Cor- 35 rected plans shall also be provided showing any alterations made as a result of correction of guarantee deficiencies of a design nature. The Contractor shall also furnish three copies of Tank Capacity Tables and Stability Booklets, two copies of all Ship Test Reports and Trial Reports, five copies of the Capacity Plan, and ten copies of the 40 Drydocking Plan. 100-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION (b) Plans for Filing Aboard Ship One print of the following plans, folded individually in accordion fashion to 230 mm x 360 mm (9 inch x 14 inch) size with the title block showing, shall be placed aboard each ship prior to delivery. All plans shall be filed in the plan file cabinets located in the Chief 5 Engineer's and Chief Officer's offices. Adequate provision shall be made for filing all instruction books in these spaces as directed. The set of plans to be filed aboard ship shall be comprised of the following: Hull 10 Selected set of principal hull structural and arrangement plans as designated by the Purchaser from the Contractor's Plan Schedule. Set of approved plans of manufactured articles (to be selected by Purchaser from Vendor's Plan List). Arrangement of Rigging with Operating Instructions in Booklet 15 form in addition to posted instruction plates. Two copies of Stability Booklet. Stability Test Report. Five copies of Capacity Plan. Machinery 20 A complete set of all principal design, arrangement and construction plans and some detail plans (to be selected by Purchaser from Contractor's Plan Schedule). One set approved plans of manufactured articles (as selected by Purchaser from Vendor's Plan List). 25 Two copies of Ship Test Reports, Hull, Machinery and Electrical and one copy of the preliminary Report of Sea Trials. Two loose leaf bound copies of piping diagrams, including both Hull and Engineering Systems. List of machinery and equipment nameplate data including 30 serial numbers for Hull and Engineering equipment. Lubricating oil and grease schedule. 100-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Electrical A complete set of principal electrical installation plans, as designated by the Purchaser from the Contractor's Plan Schedule. One set of approved plans of manufactured articles including all switchboard plans (to be selected by Purchaser from Vendor's Plan List). 100-16 0-0 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 101 TEST AND TRIALS All shop tests, ship installation tests, dock trials, and sea trials shall be scheduled and completed to the satisfaction of the Purchaser and shall be in accordance with the Society of Naval Architects and Marine 5 Engineers Technical and Research Bulletin No. 3-8, "Code of Installation and Shop Tests," the SNAME Code for Sea Trials 1973, and the Maritime Administration Supplementary Procedure for Testing Machniery, dated March 15, 1964 and Addendum No. 1. Where any conflicts or contradictions exist between the above codes, the Maritime Administration Procedure shall 10 take precedence. Where conflict exists between individual sections of this specification and the Maritime Administration Procedure, this specification shall take precedence. The Contractor shall prepare and install all maneuvering information to be carried in the pilot house in accordance with U.S. Coast Guard 15 requirements as presented in the Federal Register Notice of June 15, 1975. The maneuvering trials performed should facilitate the preparation of the pilot house diagrams. Where the sea trial requires more that twenty-four (24) hours con- tinuous testing, a recuperation period of six (6) hours shall be provided 20 at the end of each 18-hour period wherein all testing shall be suspended. Shaft calibration is required for vessels which are to undergo progressive speed trials or are contractually subject to liquidated damages for exceeding specified fuel consumption rates. In all other cases where a torsion meter is to be used in the determination of shaft 25 horsepower, a standard modulus of rigidity of 82 x 19 Pa (11.9 x 10° lbs per square inch) is to be specified for Grade 2 ABS steel shafting. A vibration survey shall be conducted on one ship of the series (usually the second) by the Maritime Administration in accordance with SNAME Technical and Research Bulletin C-l , "Code for Shipboard Vibration 30 Measurements," 1975. The purpose of this vibration survey is to collect design data for use by SNAME and the marine industry. The trials shall not be considered complete until they have been documented in a comprehensive and concise report by the Contractor. 35 101-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION SECTION 102 DECK, ENGINE AND STEWARD'S EQUIPMENT AND TOOLS, PORTABLE 1 . GENERAL The Contractor shall furnish and install all of the following equipment and tools. These items are in addition to items specified in 5 other sections herein. The Contractor shall provide suitable 3-conductor cords and plugs to meet United States Coast Guard regulations for grounding electrical appliances to suit the receptacles installed. The Contractor should review latest Coast Guard requirements for 10 additional portable equipment not listed in this section. Practical metric equivalents are not available for all items in this section. If equivalent sizes are not available, it is recommended that the nearest appropriate size be selected. 2. DECK DEPARTMENT - NAVIGATION AND BRIDGE EQUIPMENT, PORTABLE 15 Description Quantity Binoculars, with carrying case, 7 x 50, Spec. MIL-B-17311 2 Ea. Books and Government publications, as required Charts, nautical, as required Chronometer, Mechanical type, Spec. JAN-C-1196, or quartz 20 crystal type, Franklin Mark 25 or equal 2 Ea. Compass, drawing, 150 mm (6 inch) combination pen, pencil and divider, Dietzgen No. 832, or equal 1 Ea. Day Shape (Black Ball) 600 mm (24 inch) diameter, collapsible type, 0.28 kg (10 oz.) duck or twill, galv. 25 steel center rod and ribs 3 Ea. Dividers, plain 150 mm (6 inch) Dietzgen No. 786, or equal 2 Ea. Flag, Code, International, 40 per set, (including 2 Code Books) Cotton, Type IV, Class 1, MA Spec. 5-MA-l 1 Set Flag, Code, "B", "G", "H", "P", "Q", "Y", 1220 mm x 1830 30 mm (4 ft. x 6 ft.), Cotton, Type IV, Class 1, MA Spec. 5-MA-l 1 Ea. 102-1 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Flag, House 2 Ea. Flag, Semaphore, red and yellow, Cotton, Type V, Class 1. MA Spec. 5-MA-l ' 1 Set Flag, Ship Call Letters (four flags) 1220 mm x 1830 mm 5 (4 ft. x 6 ft.), Cotton, Type IV, Class 1, MA Spec. 5-MA-l 1 Set Flag, U.S. Jack, Size 1, Type II, Class 1, MA Spec. 5-MA-l 1 Ea. Flag, U.S. Ensign, Cotton, Size 1, Type 1, Class 1, MA Spec. 5-MA-l 2 Ea. Flag, U.S. Ensign, Cotton, Size 2, Type I, Class 1 , MA 10 Spec. 5-MA-l 2 Ea. Flag, Foreign Ensigns, as required Glass, chart reading, round, lens diam. 100 mm (4 inches), focal length 250 mm (10 inches), Bausch & Lomb or equal 1 Ea. Glass, compass reading, adjustable, 100 mm (4 inch) lens 1 Ea. 15 Hygrometer, Mason's form, Taylor No. 5522 or equal 1 Ea. Lead, sounding, hand, 3 kg (7 pound) w/46 m (25 fathom) marked line 1 Ea. Lead, sounding, hand, 11 kg (25 pound) 2/183 m (100 fathom) marked line 1 Ea. 20 Megaphone, 760 mm (30 inches) hand, fiber, Revere 195 or equal 1 Ea. Protractor, semi-circular, plastic, 200 mm (8 inches), Type I, Class A, Style 1, Fed. Spec. GG-P-681 2 Ea. Rulers, parallel, 460 mm (18 inches) plastic blades, 25 Fed. Spec. GG-P-118 (without U.S. Govt, identification marking) 2 Ea. Sextant, marine, Scientific Instruments of Wisconsin, Mark III, Model 1, or equal 1 Ea. Straightedge, steel 915 rim (36 inches), Type III, Fed. 30 Spec. GG-S-776 1 Ea. 102-2 2 Ea. 6 Ea. Quantity 2 Ea. 2 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Triangle, plastic, clear, 250 mm (10 inches), Type I, Fed. Spec. &G-T-671 Visual Signal Guide 3. DECK DEPARTMENT - TOOLS, PORTABLE Description Bar, crow, pinch point, 1.5 m (60 inch) Type II, Class 1, Fed. Spec. GGG-B-101 Bar, wrecking, 900 mm (36 inch) Type V, Class 1, Style A, Fed. Spec. GGG-B-101 2 Ea. 10 Bits, auger, consisting of 1 Ea. of following sizes: 6 mm (1/4 inch), 10 mm (3/8 inch), 13 mm (1/2 inch), 14 mm (9/16 inch), 16 mm (5/8 inch), 19 mm (3/4 inch), 22 mm (7/8 inch), and 25 mm (1 inch), Type I, Class A, Fed. Spec. GGG-B-383 1 Set 15 Brace, carpenters, ratchet, 250 mm (10 inch), Type I, Class 2, Style A, Grade 2, Fed. Spec. GGG-B-671 1 Ea. Chisel, cold, blacksmiths, 1.4 kg (3 lb.), handled, Fed. Spec. GGG-T-563 1 Ea. Chisel, cold, consisting of 1 Ea. of following sizes: 20 13 mm (1/2 inch), 19 mm (3/4 inch), and 22 mm (7/8 inch), Type IV, Class 1, Fed. Spec. GGG-C-313 1 Set Chisel, wood, consisting of 1 Ea. of following sizes: 13 mm (1/2 inch), 19 mm (3/4 inch), and 25 mm (1 inch), Type I, Class 1, Fed. Spec. GGG-C-311 1 Set 25 Clamp, "C", 150 mm (6 inch), Medium Service, Type I, Class B, Fed. Spec. GGG-C-406 2 Ea. Clamp, "C", 300 mm (12 inch), Medium Service, Type I, Class B, Fed. Spec. GGG-C-406 2 Ea. Cutter, Cable, hammer type, to 38 mm (1 1/2 inch), 30 Type III, Fed. Spec. GGG-C-800 1 Ea. Cutter, Glass, Type I, Class 1, Fed. Spec. GGG-C-751 1 Ea. Dies and Punch, grommet inserting, Commercial Size No. 4, Spec. MIL-P-16208 1 Set 102-3 Quantity 1 Ea. 1 Ea. 1 Set 1 Ea. 1 Ea. 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Drill, electric, 6 mm (1/4 inch), portable, Type III, Class A, Fed. Spec. W-D-661 Drill, electric, 13 mm (1/2 inch), portable, Type III, Class A, Fed. Spec. W-D-661 Drill, twist, HS/SS, 1.6 mm (1/16 inch) to 13 mm (1/2 inch) by millimeters (16ths), Type B, Class 1, Fed. Spec. GGG-D-751 Fid, wood, 230 mm (9 inch) hand, Type I, Style B, Spec. MIL-F-3113 1 Ea. Fid, wood, 460 mm (18 inch) hand, Type 1, Style B, Spec. MIL-F-3113 Fid, wood, 600 mm (24 inch) standing, Type II, Spec. MIL-F-3113 Files, hand, Fed. Spec. GGG-F-325, as follows: 15 Flat, bastard, 350 mm (14 inch), Type VII, Style A 1 Ea. Flat, smooth, 350 mm (14 inch), Type VII, Style C 1 Ea. Half-round bastard, 300 mm (12 inch) Type IX, 20 Style A 1 Ea. Half-round, second cut, 300 mm (12 inch), Type IX, Style B 1 Ea. Mill, smooth, 300 mm (12 inch), Type XIII, Class 2, Style C 1 Ea. 25 Mill, smooth, 150 mm (6 inch), Type XIII, Class 2, Style C 1 Ea. Funnel, 1 liter (1 qt.), galv. steel, w/strainer, Type I, Class B, Style 2, Fed. Spec. RR-F-800 1 Ea. Grinder, electric, portable, 115 volts AC/DC, 30 150 mm (6 inch) diameter grinding wheel, Fed. Spec. W-G-1115 1 Ea. Guns, grease, hand (Type, size, etc., to be specified) 2 Ea. Hacksaw frame, adj., 300 mm (12 inch), Type I, 35 Class 1, Style B, Fed. Spec. GGG-F-671 1 Ea. 102-4 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Hammer, carpenters, 0.45 kg (16 oz.), claw, Type I, Class 1, Style A, Fed. Spec. GGG-H-86 Hammer, shipping or scaling, 0.45 kg (1 lb.), Type VI, Fed. Spec. GGG-H-86 Hammer, machinists, ball peen, 0.65 kg (1 1/2 lb.), Type II, Class 1, Style A, Fed. Spec. GGG-H-86 Hammer, machinists, ball peen, 1.35 kg (3 lb.), Type II, Class 1, Style A, Fed. Spec. GGG-H-86 Hammer, sledge, double face, 5 kg (10 lb.), Type X, 10 Class 1, Fed. Spec. GGG-H-86 Hatchet, broad, 115 mm (4 1/2 inch) bit, Type F, Fed. Spec. GGG-H-131 Knife, putty, 30 mm (1 1/4 inch), Type IV, Class 2, Fed. Spec. GGG-K-481 Ea. 15 Mallet, carpenters, wood, round, 100 mm (4 inch) dia. face, Type II, Class 2, Fed. Spec. LLL-M-71 Marline spike, steel, 400 mm (16 inch) plain, Spec. MIL-M-15926 Maul, Topping, 2 1/2 kg (5 lb.), Type XII, Fed. Spec. 20 GGG-H-86 Oiler, hand, 0.5 liter (1 pint), bend spout, Type I, Class A, Fed. Spec. GGG-0-591 Plane, smooth, 230 mm (9 inch) Type VI, Class A, Fed. Spec. GGG-P-436 Ea. Pliers, combination, slip-joint, 220 mm (8 inch), Type II, Class 2, Style A, Fed. Spec. GGG-P-471 Pliers, diagnoal cutting, 200 mm (8 inch), Type I, Class 1, Fed. Spec. GGG-P-468 Pump, grease gun loading, portable, Lincoln No. 1296, 30 Graco No. 225-770, or equal Quantity 2 Ea. 6 Ea. 2 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 2 Ea. 1 Ea. 3 Ea. 1 Ea. 1 Ea. 2 Ea. 1 Ea. 102-5 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Punches, Fed. Spec. GGG-P-821, as follows: Alignment (Drift), 6 mm (1/4 inch), Type IX, Class A 1 Ea. Arch (Cutting drive), 16 mm (1/4 inch), Type 5 VI, Class B, Style 1 1 Ea. Center, 10 mm (3/8 inch), Type II, Class A 1 Ea. Drive pin, 10 mm (3/8 inch), Type VIII, Class B 1 Ea. Rasp, wood, 350 mm (14 inch) half-round, bastard, 10 Type XXVII, Class 2, Style A, Fed. Spec. GGG-F-325 Rod, sounding, jointed brass, length as required Rule, aluminum, multiple folding, 1.8 m (6 ft.), Type III, Class 2, Fed. Spec. GGG-R-791 Saw, hand, cross cut, 660 mm (26 inch), 8-point, 15 Type V, Style B, Fed. Spec. GGG-S-65 Saw, hand, rip, 660 mm (26 inch), 5 1/2 point, Type XIV, Style B, Fed. Spec. GGG-S-65 Scraper, hand, 380 mm (15 inch), all metal, Type I, Class A, Fed. Spec. GGG-S-116 6 Ea. 20 Scraper, deck, blade, 50 mm (2 inches), wood handle, 760 mm (30 1/2 inches), Type II, Fed. Spec. GGG-S-116 Scraper, hull, blade, 50 mm (2 inches), wood handle, 450 mm (18 inches), Type III, Fed. Spec. GGG-S-116 3 Ea. 25 Screwdriver, 100 mm (4 inch), 200 mm (8 inch), and 250 mm (10 inch), Type I, Class 4, Fed. Spec. GGG-S-121 Screwdriver, Phillips, 150 mm (6 inch) and 200 mm (8 inch), Type VI, Class I, Fed. Spec. GGG-S-121 Snake, plumbers, 6 mm x 7.6 m (1/4 inch x 25 ft.), 30 coiled spring type, w/offset handle, Marco or equal Square, carpenters, steel, one-piece, 400 mm x 600 mm (16 inch x 24 inch), Type II, Class A, Style 2, Fed. Spec. GGG-S-656 Stencil, figures, 38 mm (1 1/2 inch), brass, Fed. Spec. 35 RR-S-714 102-6 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 6 Ea. 3 Ea. 3 Ea. 1 Ea . Size 1 Ea . Size 1 Ea. 1 Ea. 1 Set MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Stencil, figures, 76 mm (3 inch), brass, Fed. Spec. RR-S-714 Stencil, letters, 38 mm (1 1/2 inch), brass, Fed. Spec. RR-S-714 Stencil, letters, 76 mm (3 inch) brass, Fed. Spec. RR-S-714 Stone, sharpening, mounted, 25 mm x 50 mm x 200 mm (1 inch x 2 inch x 8 inch), combination, Type I, Class B, Fed. Spec. SS-S-736 Ea. 10 Tape, measuring, 15 m (50 ft.), steel, Type II, Class B, Fed. Spec. GGG-T-106 Tape, sounding, steel, with 0.56 kg (20 oz.) plumb bob, Lufkin "Atlas", or equal (Capable of sounding deepest tank) 2 Ea. 15 Torch, blow, 1 liter (1 qt.) cap., kerosene, Clayton & Lambert No. 32A, Hauck equivalent or equal Trowel, brick, 260 mm (10 1/2 inch), Type III, Fed. Spec. GGG-T-671 Wrench, adj., 200 mm (8 inch) crescent, Type I, Fed. 20 Spec. GGG-W-631 Wrench, adj., 300 mm (12 inch) crescent, Type I. Fed. Spec. GGG-W-631 Wrench, monkey, 250 mm (10 inch), Type III, Fed. Spec. GGG-W-631 Ea. 25 Wrench, monkey, 380 mm (15 inch), Type III, Fed. Spec. GGG-W-631 Wrench, single head, open end, 0.26 radians (15°), Type V, Fed. Spec. GGG-W-636, as follows: 16 mm (5/8 inch) nut, 27 mm (1-1/16 inch) N.0. 2 Ea. 30 19 mm (3/4 inch) nut, 31 mm (1-1/4 inch) N.0. 2 Ea. 22 mm (7/8 inch) nut, 36 mm (1-7/16 inch) N.0. 2 Ea. 25 mm (1 inch) nut, 41 mm (1-5/8 inch) N.0. 2 Ea. Quantity 1 Set 1 Set 1 Set 1 Ea. 1 Ea. 2 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 102-7 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Wrench, pipe, adj., steel, heavy duty, Type II, Class A, Fed. Spec. GGG-W-651 , as follows: 250 mm (10 inch), cap. 3 mm to 25 mm (1/8 inch to 1 inch) pipe 1 Ea. 5 350 mm (14 inch), cap. 6 mm to 38 mm (1/4 inch to 1 1/2 inch) pipe 1 Ea. 900 mm (36 inch), cap. 6 mm to 100 mm (1/4 inch to 4 inch) pipe 1 Ea. Wrench, plier, 200 mm (8 1/2 inch), Type I, Class I, 10 Style B, Fed. Spec. GGG-W-00649 1 Ea. 4. DECK DEPARTMENT - MISCELLANEOUS EQUIPMENT, PORTABLE Description Quantity Ammunition, jacketed, 10 mm (.38 caliber) 200 Rds. Belt, safety, with 2 D-rings, MSA No. 46902 or 15 equal with 2 securing lines, 14 mm (9/16 inch) nylon, 15 m (50 meet) long, MSA No. 455879 or equal 2 Ea. Billy, wood, police riot type 3 Ea. Bucket, galv. steel, 13 liter (14 quart), Type II, Fed. Spec. RR-P-35 6 Ea. 20 Cup, force, plumbers, 140 mm (5 1/2 inch) diam. with 600 mm (24 inch) wood handle 2 Ea. Fender, netted rope, length, 600 mm (24 inch) 4 Ea. Flashlight, 3-cell, hand (w/out batteries), heavy duty, explosion-proof, Bright Star No. 2224 or equal 6 Ea. 25 Goggles, chipping, clear lenses, Type II, Class A, Fed. Spec. GGG-G-513 6 Ea. Handcuffs, complete with 2 keys, Spec. MIL-I-20050 3 Pr. Ladder, extension, 2-section, alum., 6 m (20 ft.), heavy duty, corrugated rungs, Type II, Class a, Fed. 30 Spec. RR-L-91 1 Ea. Lantern, safety, waterproof, explosion-proof, Eveready No. 459 or equal 3 Ea. 102-8 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Light, portable, 100 watt, watertight, with 15 m (50 foot) rubber-covered cord, Oceanic No. 2244 or equal 2 Ea. Light, cargo, portable, 500 watt, with 22.5 m (75 foot) rubber-covered extra hard service cord. Construction of 5 assembled unit and all parts shall meet applicable requirements of USCG regulations 1 Ea. Net, safety, for gangway, 6 m x 3 m (20 ft. x 10 ft.), constructed of 12 thread manila line, 250 mm (10 inch) mesh. Outside of net to be roped with 50 mm (2 inch) 10 circ. manila line with lashing lanyards 1 Ea. Respirator, dust, Willson No. 2D Dustite or equal, with 12 R99 disposable filters, one facelet and two outlet valves for each respirator 4 Ea. Revolver, 10 mm (.38 caliber) Special, military or 15 police model, (w/leather hip holster to suit) 2 Ea. Shovel, scoop, D-handle, size 6, Type II, Fed. Spec. GGG-S-326 3 Ea. Sling, stores, net, 3.6 m x 3.6 m (12 ft. x 12 ft.), 75 mm (3 inch) manila, 250 mm (10 inch) mesh, 90 mm 20 (3 1/2 inch) manila frame 2 Ea. Thermometer, 300 mm (12 inch), wall, -34°C/54°C (-30°F/130°F) Moeller No. 360 or equal Trap, rat 5. ENGINE DEPARTMENT - TOOLS & EQUIPMENT, PORTABLE Description Anvil, blacksmiths, Class 1, Fed. Spec. GGG-A-576 Bars, steel, Fed. Spec. GGG-B-101, as follows: Chisel, 450 mm (18 inch), Type I Chisel, 660 mm (24 inch), Type I Ea. 30 Crowbar, pinch-point, 1500 m (60 inch), Type II, Class I Wrecking, 600 mm (24 inch) gooseneck, claw, and pinch-point, Type V, Class 1, Style A Wrecking, 900 mm (36 inch) gooseneck, claw, 35 and pinch-point, Type V, Class 1, Style A 102-9 6 Ea. 12 Ea. Quantity 1 Ea. 1 1 Ea. Ea. 2 Ea. 1 Ea. 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Blower and Cleaner, vacuum, portable, 115 volts, Ac. DC, Type HVU, Spec. MIL-C-21101 Bucket, galv. steel, 13 liter (14 quart), Type II, Fed. Spec. RR-P-35 Caliper, inside, 450 mm (18 inch), firm joint, Type I, Class 4, Fed. Spec. GGG-C-95 Caliper, inside, 150 mm (6 inch) spring joint, Type I, Class 1, Fed. Spec. GGG-C-95 Caliper, outside, 450 mm (18 inch) firm joint, 10 Type II, Class 4, Fed. Spec. GGG-C-95 Caliper, outside, 150 mm (6 inch) spring joint, Type II, Class L, Style A, Fed. Spec. GGG-C-95 Caliper micrometer, outside, mm to 25 mm (0 inch to 1 inch), Type I, Class 1, Style A, Fed. Spec. GGG-C-105 I Ea. 15 Caliper, micrometer, outside, 25 mm to 100 mm (1 inch to 4 inch), Type I, Class 1, Style B, Fed. Spec. GGG-C-105 Caliper, micrometer, inside, 38 mm to 810 mm (1 1/2 inch to 32 inch), Type II, Class 3, Style A, Fed. Spec. GGG-C-105 F 20 Can, garbage, galv., 75 liter (20 gal.) w/cover, Witt Cornice No. 1, Lisk-Savory No. 526-20, or equal Can, flammable waste, covered, foot-oper., 23 liter (6 gal.), galv., Type I, Fed. Spec. RR-C-114 Chisel, blacksmiths, cold, 44 mm (1 3/4 inch) cutting 25 edge, w/handle, Type I, Class 1, Fed. Spec. GGG-T-563 Chisel, blacksmiths, hot, 50 mm (2 inch) cutting edge, w/handle, Type I, Class 2, Fed. Spec. GGG-T-563 Chisel, hand, Fed. Spec. GGG-C-313, as follows: Cape, 6 mm (1/4 inch) cutting edge, lg. 127 mm 30 (5 inch) Type I, Style B 2 Ea. Cape, 13 mm (1/2 inch) cutting edge, lg. 178 mm (7 inch) Type I, Style B 2 Ea. 102-10 Quantity 1 Ea. 6 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 2 Ea. 2 Ea. 1 Ea. 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Cape, 19 mm (3/4 inch) cutting edge, lg. 203 mm (8 inch) Type I, Style B 2 Ea. Cold, 13 mm (1/2 inch) cutting edge, lg. 146 mm (5 3/4 inch) Type IV, Class 1 2 Ea. 5 Cold, 19 mm (3/4 inch) cutting edge, lg. 165 mm (6 1/2 inch) Type IV, Class 1 2 Ea. Cold, 22 mm (7/8 inch) cutting edge, lg. 191 mm (7 1/2 inch) Type IV, Class 1 1 Ea. Cold, 25 mm (1 inch) cutting edge, lg. 457 mm 10 (18 inch) Type IV, Class 2 2 Ea. Diamond-point, 9.5 mm (3/8 inch) cutting edge, lg. 165 mm (6 1/2 inch) Type II, Style B 2 Ea. Diamond-point, 13 mm (1/2 inch) cutting edge, lg. 178 mm (7 inch) Type II, Style B 2 Ea. 15 Diamond-point, 19 mm (3/4 inch) cutting edge, lg. 203 mm (8 inch) Type II, Style B 2 Ea. Round nose, 9.5 mm (3/8 inch) cutting edge, lg. 152 mm (6 inch) Type II, Style B 2 Ea. Chuck, drill, 1.6 mm to 13 mm (1/16 inch to 1/2 inch) 20 with No. 3 Morse taper arbor 1 Ea. Clamp, "C", heavy service, 100 mm (4 inch), Type I, Class D, Fed. Spec. GGG-C-406 2 Ea. Clamp, "C", heavy service, 200 mm (8 inch), Type I, Class D, Fed. Spec. GGG-C-406 2 Ea. 25 Cup, force, plumbers, 140 mm (5 1/2 inch) diam. with 600 mm (24 inch) wood handle 2 Ea. Cutter gasket & washer, Type I, Style B, Fed. Spec. GGG-C-748 1 Ea. Cutter, gage glass, plier type, Type II, Class 2, 30 Fed. Spec. GGG-C-751 1 Ea. Cutter, glass, Type I, Class 1, Fed. Spec. GGG-C-751 1 Ea. Cutter, pipe, 3 mm to 51 mm (1/8 inch to 2 inch) Type I, Class 1, Style A, Fed. Spec. GGG-C-771 1 Ea. Cutter, pipe, 64 mm to 100 mm (2 1/2 inch to 4 inch), 35 Type I, Class I, Style A, Fed. Spec. GGG-C-771 1 Ea. Cutter, tube, copper, 3 mm to 25 mm (1/8 inch to 1 inch), Type II, Class 1, Fed. Spec. GGG-C-771 1 Ea. 102-11 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Dies, bolt (solid nuts) hex., rethreading, N.C. sizes: 6 mm (1/4 inch), 8 mm (5/16 inch), 9.5 mm (3/8 inch), 11 mm (7/16 inch), 13 mm (1/2 inch), 14 mm (9/16 inch), 16 mm (5/8 inch), 19 mm (3/4 inch), 22 mm (7/8 inch) 5 25 mm (1 inch), 28 mm (1 1/8 inch), 32 mm (1 1/4 inch), 35 mm (1 3/8 inch), 38 mm (1 1/2 inch), total 14 die nuts, Type III, Fed. Spec. GGG-D-296 1 Set Dies, bolt threading, (NC-RH) adj., rect., 2-piece with collets, sizes: 9.5 mm (3/8 inch), 11 mm 10 (7/16 inch), 13 mm (1/2 inch), 16 mm (5/8 inch), 19 mm (3/4 inch), 22 mm (7/8 inch), and 25 mm (1 inch), with diestock, Type II, Fed. Spec. GGG-D-296 1 Set Dies, pipe threading, adj., rect., 1 -piece Amer. Std. taper (RH), sizes: 3 mm to 50 mm (1/8 inch 15 to 2 inch), Type II, Class 2, Fed. Spec. GGG-T-581 . Furnished with adj. diestocks, sizes 1 and 2, Type III, Class 7, Fed. Spec. GGG-T-581 1 Set Diestock, dies and taps (screw plates) complete for the following bolt sizes (NC): 6 mm (1/4 inch), 20 8 mm (5/16 inch), 9.5 mm (3/8 inch), 11 m (7/16 inch), 13 mm (1/2 inch), 16 mm (5/8 inch), 19 mm (3/4 inch), 22 mm (7/8 inch) 28 mm (1 1/8 inch), 32 mm (1 1/4 inch), 35 mm (1 3/8 inch), 38 mm (1 1/2 inch), (13 sizes) consisting of 1 plug tap for each size 25 (13 dies). Set furnished with 2 tap wrenches and 2 diestocks. Vermont Set No. 550 or equal 1 Set Diestock, dies and taps (screw plates), machine screw sizes, one tap and one split die for each cutting size as follows: 4-40, 4-48, 6-32, 6-40 30 8-32, 10-24, 10-32, 12-24 and 12-48 (total 10 split dies and 10 taps). Set furnished with 1 diestock and 1 tap wrench. Greenfield "OK" Jr. Set No. B-10 or equal 1 Set Divider, 150 mm (6 inch) spring, Type A, Class 1, Fed. 35 Spec. GGG-D-351 1 Ea. Divider, 300 mm (12 inch) spring, Type A, Class 1, Fed. Spec. GGG-D-351 1 Ea. Dresser, for 300 mm x 50 mm (12 inch x 2 inch) grinding wheel, Desmond-Huntington No. 1 or equal 1 Ea. 40 102-12 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Drill, electric, 13 mm (1/2 inch) portable, Type III, Class A, Style 1, Fed. Spec. W-D-661 1 Ea. Drill, electric, 6 mm (1/4 inch) portable, Type III, Class A, Style 1, Fed. Spec. W-D-661 1 Ea. 5 Drill, ratchet, reversible, for Morse No. 3 reg. T.S. drills, Type I, Size No. 7, Fed. Spec. GGG-D-698. (To be furnished with Morse Taper Sockets No. 1 and No. 2 to suit No. 3 socket.) 1 Ea. Drill, twist, HS, straight shank, 1.6 mm to 13 mm 10 (1/16 inch to 1/2 inch) by 32nds, Type B, Class 1, Fed. Spec. GGG-D-751 2 Sets Drill, twist, HS, taper shank, 3 mm to 13 mm (1/8 inch to 1/2 inch) by 64ths, Type E, Fed. Spec. GGG-D-751 1 Set 15 Drill, twist, HS, taper shank, 13.5 mm to 32 mm (17/32 inch to 1 1/4 inch) to 32nds, Type E, Fed. Spec. GGG-D-751 1 Set Drill wire gage, HS, straight shank No. 1 to No. 60, Type C, Fed. Spec. GGG-D-751 2 Sets 20 Drill and countersink, combined, HS, Drill sizes 1.2 mm, 2 mm, 2.8 mm, 3 mm and 4.8 mm (3/64 inch, 5/64 inch, 7/64 inch, 1/8 inch and 3/16 inch), Morse No. 51H or equal 1 Set Extractor, screw, Nos. 1 to 12, Type I, Class 1, 25 Style A, Fed. Spec. GGG-E-936 1 Set Figure, steel stamping hand, 6 mm (1/4 inch) Type I, Grade A, Fed. Spec. GGG-D-280 1 Set Figures, stenciling, brass, 50 mm (2 inch) Fed. Spec. RR-S-714 1 Set 30 Files, hand, Fed. Spec. GGG-F-325, as follows: Flat, bastard, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type VII, Style A 1 Ea. Size Flat, second-cut, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type VII, Class B 1 Ea. Size 35 102-13 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Flat, smooth, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type VII, Class C 1 Ea. Size Half-round, bastard, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type IX, Style A 1 Ea. Size 5 Half-round, second-cut, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type IX, Style B 1 Ea. Size Half-round, smooth, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type IX, Style C 1 Ea. Size Round, bastard, 250 mm (10 inch), 300 mm (12 10 inch), 350 mm (14 inch), Type XVI, Class 1, Style A 1 Ea. Size Round, second-cut, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type XVI, Class 1, Style B 1 Ea. Size 15 Square, bastard, 200 mm (8 inch), 300 mm (12 inch), 400 mm (16 inch), Type XVII, Style A 1 Ea. Size Square, second-cut, 250 mm (10 inch), 300 mm (12 inch), 350 mm (14 inch), Type XVII, Style B 1 Ea. Size 20 Taper, slim, 200 mm (8 inch), Type XVIII, Class 2 1 Ea. Size Flashlight, 3-cell, hand (w/out batteries), explosion- proof, heavy duty, Bright Star No. 2224 or equal 1 Ea. Funnel, 1 liter (1 qt.) galv. steel, w/strainer, Type 25 I, Class B, Style 2, Fed. Spec. RR-F-800 1 Ea. Funnel, 2 liter (2 qt.) galv. steel, w/strainer, Type I, Class B, Style 2, Fed. Spec. RR-F-800 1 Ea. Funnel, 4 liter (4 qt.) galv. steel, w/strainer, Type I, Class B, Style 2, Fed. Spec. RR-F-800 1 Ea. 30 Gage, center, 1.05 radians (60°C), Type VI, Fed. Spec. GGG-G-17 1 Ea. Gage, depth and angle, Type II, Class 2, Fed. Spec. GGG-G-17 1 Ea. Gage, screw pitch, Type V, Class 1, Style C, Fed. Spec. 35 GGG-G-17 1 Ea. Gage, steel wire, Type I, Class 2, Fed. Spec. GG-G-86 1 Ea. Gage, thickness, feeler, tapered leaves, 76 mm (3 inch) long, Type VIII, Class 1, Style A, Fed. Spec. GGG-G-17 102-14 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Gage, thickness, feeler, tapered leaves, 152 mm (6 inch) long, Type VIII, Class 1, Style B, Fed. Spec. GGG-G-17 1 Ea. Gloves, asbestos, length 350 mm (14 inch), Fed. 5 Spec. HH-M-391 2 Pr. Gloves, rubber, electricians, Class 1, Fed. Spec. ZZ-G-401 2 Pr. Goggles, chipping, clear lenses, Type II, Class A, Fed. Spec. GGG-G-513 6 Ea. 10 Guns, grease, hand (Type, Size, etc., to be specified) 2 Ea. Hacksaw frame, adj., 300 mm (12 inch) Type I, Class 1, Style B, Fed. Spec. GGG-F-671 2 Ea. Hacksaw frame, non-adj., 300 mm (12 inch) deep 15 cut, Type III, Class 3, Fed. Spec. GGG-F-671 1 Ea. Hammer, carpenters, 0.45 kg (16 oz.) claw, Type I, Class 1, Style A, Fed. Spec. GGG-H-86 1 Ea. Hammer, chipping, 0.45 kg (1 lb.) Type VI, Fed. Spec. GGG-H-86 3 Ea. 20 Hammer, copper, 1.8 kg (4 lbs.) Type II, Class 1, Fed. Spec. GGG-H-33 1 Ea. Hammer, machinists, ball peen, 0.34 kg (12 oz.) Type II, Class 1, Style A, Fed. Spec. GGG-H-86 2 Ea. Hammer, machinists, ball peen, 0.67 kg (1 1/2 lb.) 25 Type II, Class 1, Style A, Fed. Spec. GGG-H-86 2 Ea. Hammer, machinists, ball peen, 0.91 kg (2 lb.) Type II, Class 1, Style A, Fed. Spec. GGG-H-86 1 Ea. Hammer, mason, 1.8 kg (4 lb.), Type XI, Class 4, Fed. Spec. GGG-H-86 ' 1 Ea. 30 Hammer, sledge, 5 kg (10 lb.) double face, Type X, Class 1, Fed. Spec. GGG-H-86 1 Ea. Hammer, sledge, 7 kg (16 lb.) double face, Type X, Class 1, Fed. Spec. GGG-H-86 1 Ea. 102-15 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Hammer, soft face, 0.91 kg (2 lb.) Snap-on BH-232-2, or equal 1 Ea. Hoist, chain, hand-operated, spur-geared, hook suspension, Type C, Spec. MIL-H-904: 5 1 metric ton (1 ton) capacity 1 Ea. 5 metric ton (5 ton) capacity 1 Ea. Hose, steam, 19 mm (3/4 inch) I.D. x 15 m (50 ft.), B.F. Goodrich, U.S. Rubber equivalent, or equal, burst-proof for 200 psi steam pressure, with male 1 Ea. 10 couplings Indicator, dial test, complete with accessories, Type III, Style A, Spec. MIL-I-18422 1 Ea. Iron, soldering, electric, 10 mm (3/8 inch) tip, Type I, Class 2, Fed. Spec. W-S-570 1 Ea. 15 Iron, soldering, electric, 20 mm (7/8 inch) tip, Type I, Class 2, Fed. Spec. W-S-570 1 Ea. Jack, flange, steel, for flanges 50 mm to 500 mm (2 inch to 20 inch), Williams No. FJ-20 or equal 1 Set Jack, hydraulic, hand, 20 metric ton (20 ton), 20 Type VII, Class 3, Fed. Spec. GGG-J-51 1 Ea. Jack, screw, 5 metric ton (5 ton), Type I, Class 3, Fed. Spec. GGG-J-51 1 Ea. Knife, putty, 32 mm (1 1/4 inch), Type IV, Class 2 Fed. Spec. GGG-K-481 1 Ea. 25 Ladder, step, alum., 2.5 m (8 ft.), heavy duty, slip, resistant steps, pail shelf, Louisville Ladder No. LM-308 or equal 1 Ea. Lantern, safety, waterproof, explosion-proof, Eveready No. 459 or equal 2 Ea. 30 Letters, steel, stamping, hand, 6 mm (1/4 inch), Type II, Grade A, Fed. Spec. GGG-D-280 1 Set Letters, stenciling, brass, 50 mm (2 inches), Fed. Spec. RR-S-714 1 Set 102-16 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Light, portable, 100 watt, watertight, with 15 m (50 foot) rubber covered cord, Oceanic No. 2244 or equal Machine, valve reseating, portable, for globe and angle valves, 3 mm to 200 mm (1/2 inch to 8 inch) Mallet, wood, round, 100 mm (4 inch) dia. face, Type II, Class 2, Fed. Spec. LLL-M-71 Measure, liquid, galv., 1 liter (1 qt.) Flex, spout, Huffman No. N-201 , or equal Measure, liquid, galv., 2 liters (2 qt.) Flex. 10 spout, Huffman No. N-202, or equal Oiler, hand, 240 mL (8 oz.) Type I, Class A. Fed. Spec. GGG-0-591 Oiler, hand, 360 mL (12 oz.) Type I, Class A, Fed. Spec. GGG-0-591 Ea. 15 Oiler, (Filler) hand, 1 liter (2 pint), Type III, Fed. Spec. GGG-0-591 Pin, drift, 14 mm (9/16 inch), 17 mm (11/16 inch), 21 mm (13/16 inch), 24 mm (15/16 inch) and 27 mm (1 1/16 inch), Stanley, Atha No. 1060C or equal Ea. Size 20 Plate, surface, 305 mm x 305 mm (12 inch x 12 inch) Type I, Grade A, Fed. Spec. GGG-P-453 Pliers, diagnolal cutting, 200 mm (8 inch) Type I, Class 1, Fed. Spec. GGG-P-468 Pliers, Fed. Spec. GGG-P-471 , as follows: 25 Angle nose, 200 mm (8 inch), Type II, Class 1, Style A 2 Ea. Combination, slip-joint, 200 mm (8 inch), Type II, Class 2, Style A 2 Ea. Gas, 150 mm (6 inch) Type VI 2 Ea. 30 Linemans, side cutting, 215 mm (8 1/2 inch), Type IX, Class 1 , Style B 2 Ea. Needle nose, 180 mm (7 inch), Type XII, Class 2, Style B 2 Ea. Q uai itity 3 Ea. 1 Ea. 1 Ea. 1 Ea. 1 Ea. 2 Ea. 1 Ea. 2 Ea. 1 E< i. Size 1 Ea. 2 Ea. 102-17 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Puller, fuse, midget, 6 mm through 13 mm (1/4 inch through 1/2 inch), Type I, Size 1, Fed. Spec. W-P-796 1 Ea. Puller, fuse, 13 mm through 32 mm (1/2 inch through 1 1/4 inch), 600 volts, Type I, Size 2, Fed. Spec. W-P-796 2 Ea. 5 Puller, fuse, 25 mm through 44 mm (1 inch through 1 3/4 inch), 600 volts, Type I, Size 3, Fed. Spec. W-P-796 2 Ea. Puller, fuse, test ight, Spec. MIL-P-15977 1 Ea. Puller, gear & bearing, Size 2, Type I, Class 1, 10 Style A, Fed. Spec. GGG-P-781 1 Ea. Puller, gear & bearing, Size 8, Type I, Class 1, Style A, Fed. Spec. GGG-P-781 1 Ea. Pump, barrel, hand, rotary, Type I, Spec. MIL-D-40078 1 Ea. Pump, grease gun loading, portable, Lincoln No. 1296, 15 Graco No. 225-770, or equal 1 Ea. Punches, Fed. Spec. GGG-P-831 , as follows: Alignment (Drift), short taper, 1 Ea. Sizes: 2.4 mm (3/32 inch), 3 mm (1/8 inch), 4 mm (5/32 inch), 4.7 mm (3/16 inch), 5.5 mm 20 (7/32 inch), 6 mm (1/4 inch), 8 mm (5/16 inch), and 9.5 mm (3/8 inch), Type IX, Class A 1 Set Arch (cutting drive), 1 Ea. sizes 9.5 mm (3/8 inch), 13 mm (1/2 inch), 16 mm (5/8 inch), 19 mm (3/4 inch), 22 mm (7/8 inch), 25.4 mm 25 (1 inch), 28.5 mm (1 1/8 inch), 32 mm (1 1/4 inch), 35 mm (1 3/8 inch), 38 mm (1 1/2 inch), 41 mm (1 5/8 inch), and 44.4 mm (1 3/4 inch), Type VI, Class B, Style 1 1 Set Center, 9.5 mm (3/8 inch), Type II, Class A 3 Ea . 30 Drive pin, 1 Ea. sizes 3 mm (1/8 inch), 6 mm (1/4 inch), and 9.5 mm (3/8 inch), Type VIII, Class A 1 Set Reamer, pipe burring, ratchet type, 3 mm to 51 mm (1/8 inch to 2 inch) Type VII, Class 1, Fed. Spec. GGG-R-180 1 Ea. 35 Reamer, hand, str. fluted, 6 mm to 32 mm (1/4 inch to 1 1/4 inch) by 32nds, Type I, Class 1, Grade A, Fed. Spec. GGG-R-180 1 Set 102-18 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Reamer, taper pin, hand, str. fluted, to 10, Type VIII, Class 1, Grade A. Fed. Spec. GGG-R-180 Respirator, for dust, fumes and mists, Will son No. 1211 or equal, with two Rll filters for each respirator Rod, sounding, jointed brass, length as required Rule, aluminum, multiple folding, 1.8 m (6 ft.), Type III, Class 2, Fed. Spec. GGG-R-791 Rule, steel, machinsts, 305 mm (12 inch) Type IV, Class 4, Grade A, Fed. Spec. GGG-R-791 Saw, hand, crosscut, 660 mm (26 inch) 8-point, Type V, Style B, Fed. Spec. GGG-S-65 Scraper, deck, glade, 50 mm (2 inch) wood handle 775 mm (30 1/2 inch), Type II, Fed. Spec. GGG-S-116 Scraper, hand, 380 mm (15 inch) all metal, Type I, Class A, Fed. Spec. GGG-S-116 Scraper, machinists, bearing, 7 to set, blade lengths, 38 mm to 114 mm (1 1/2 inch to 4 1/2 inch) Type II, Fed. Spec. GGG-S-113 Screwdriver, close-quarter, 38 mm (1 1/2 inch) blade, Type I, Class 3, Fed. Spec. GGG-S-121 Screwdriver, 100 mm (4 inch), 150 mm (6 inch), 300 mm (12 inch), and 457 mm (18 inch) blade, Type I, Class 4, Fed. Spec. GGG-S-121 Screwdriver, offset, 150 mm (6 inch) Type IV, Class 1, Fed. Spec. GGG-S-121 Screwdriver, Phillips, 150 mm (6 inch) and 200 mm (8 inch), Type VI, Class 1, Fed. Spec. GGG-S-121 Scriber, double-point, 3 mm (1/8 inch) dia. x 200 mm (8 inch) long, Type II, Class 2, Fed. Spec. GGG-S-131 Scriber, double-point, 5 mm (3/16 inch) dia. x 305 mm (12 inch) long, Type II, Class 2, Fed. Spec. GGG-S-131 1 Ea. 35 102-19 Quantity 1 Set 5 6 Ea. 1 Ea. 3 Ea. 10 1 Ea. 1 Ea. 2 Ea. 15 3 Ea. 1 Set 20 2 Ea. 2 Ea. Size 25 2 Ea. 2 Ea. Size 30 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Shovel, scoop, general purpose, D-handle, Size 6 Type II, Fed. Spec. GGG-S-326 1 Ea. Snake, plumbers, 6 mm x 7.6 mm (1/4 inch x 25 ft.) coiled spring type, w/offset handle, Marco or equal 1 Ea. 5 Snips, tinners, circular, 76 mm (3 inch) cut, length 320 mm (12 1/2 inch), Type II, Class 2, Style A, Fed. Spec. GGG-S-291 1 Ea. Snips, tinners, straight, 90 mm (3 1/2 inch) cut, length 400 mm (16 inch), Type II, Class 1, Style A, Fed. 10 Spec. GGG-S-291 1 Ea. Square, carpenters, steel, one piece, 400 mm x 600 mm (16 inch x 24 inch), Type II, Class A, Style 2, Fed. Spec. GGG-S-656 1 Ea. Square, combination, machinists, 300 mm (12 inch) 15 w/center head and protractor head, Type VI, Class B, Fed. Spec. GGG-S-656 1 Ea. Stone, sharpening, mounted, combination, 200 mm x 50 mm x 25 mm (8 inch x 2 inch x 1 inch) Type I, Class B, Fed. Spec. SS-S-736 2 Ea. 20 Straightedge, 610 mm (24 inch) steel, Type II, Spec. MIL-S-15769 1 Ea. Stripper, wire, hand, 2.6 mm - 1.0 mm (10-18 A.W.G.), pivot handles, Type II, Style A, Fed. Spec. GGG-S-665 1 Ea. Tachometer, hand, triple range, 300-12,000 r/min (RPM) 25 allowable error not greater than 1 percent 1 Ea. Tape, measuring, steel, 15 m (50 ft.) Type II, Class B, Fed. Spec. GGG-T-106 1 Ea. Tape, sounding, steeel , with 0.57 kg (20 oz.) plumb bob, Lufkin "Atlas" or equal (capable of sounding deepest 30 tank) 2 Ea. Tap, pipe, hand, American Standard regular threads, 1 Ea. sizes 3 mm (1/8 inch), 6 mm (1/4 inch), 9 mm (3/8 inch), 13 mm (1/2 inch), 19 mm (3/4 inch), 25 mm (1 inch), 32 mm (1 1/4 inch), 38 mm (1 1/2 inch), and 50 mm (2 inch), 35 9 taps, Type I, Class 1, Fed. Spec. GGG-T-581 1 Set 102-20 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Tongs, pipe, chain, cap 200 mm (8 inch), length 1270 mm (50 inch), Type III, Class B, Fed. Spec. GGG-W-651 Tool, banding, including bands and buckles (for hose, pipe and cable) "Band-It Tool", or equal Tool, flaring, tube, 3 mm to 19 mm (1/8 inch to 3/4 inch) Type I, Class 2, Style A, Fed. Spec. GGG-F-451 Tools, (screws and hooks) packing, Mound Set No. 906-P, or equal, consisting of 1 ea. of tools No.s 6, 8, 10, 12, 14 and 18 Trowel, brick, 260 mm (10 1/2 inch) Type III, Fed. Spec GGG-T-671 Trowel, cement, 130 mm (3 3/4 inch) Type II, Class 1, Style A, Fed. Spec. GGG-T-671 Wedge, steel, 150 mm x 40 mm (6 inch x 1 1/2 inch) 15 Fed. Spec. GGG-W-201 Wedge, steel, 100 mm x 30 mm (4 inch x 1 1/4 inch) Fed. Spec. GGG-W-201 Welding and cutting outfit, oxy-acetylene, Purox W-202, Airco equivalent, or equal, complete with 15 m 20 (50 ft.) hose and fittings 1 Ea. Wrench, adjustable, crescent, Type I, Fed. Spec. GGG-W-631, as follows: 100 mm (4 inch) 2 Ea. 150 mm (6 inch) 2 Ea. 25 200 mm (8 inch) 2 Ea. 250 mm (10 inch) 2 Ea. 300 mm (12 inch) 2 Ea. Wrench, box, double head, 12-point, deep offset each end, regular length, Type I, Class 2, Fed. Spec. 30 GGG-W-636, as follows: 9 mm x 11 mm (3/8 inch x 7/16 inch) 13 mm x 14 mm (1/2 inch x 9/16 inch) 14 mm x 16 mm (9/16 inch x 5/8 inch) 16 mm x 19 mm (5/8 inch x 3/4 inch) N.O. 2 Ea. 35 19 mm x 20 mm (3/4 inch x 25/32 inch) 102-21 Quai itity 1 Ea. 1 Set 1 Ea. 1 Set 1 Ea. 1 Ea. 4 Ea. 4 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description 22 mm x 25 mm (7/8 inch x 1 inch) 24 mm x 27 mm (15/16 inch x 1 1/6 inch) 27 mm x 32 mm (1 1/16 inch x 1 1/4 inch) 37 mm x 41 mm (1 7/16 inch x 1 5/8 inch) Wrench, combination, open end and 0.26 radians (15°) offset box, GGG-W-636, as follows: Quantity N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. 9 mm (3/8 inch) 11 mm (7/16 inch) 13 mm (1/2 inch) 14 mm (9/16 inch) 16 mm (5/8 inch) 19 mm (3/4 inch) 22 mm (7/8 inch) 25 mm (1 inch) N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. N.O. 2 Ea. Wrench, impact, pneumatic, 625 mm (1 inch square) drive, with adapter to 13 mm and 19 mm (1/2 inch and 3/4 inch), and sockets as required. Torque range 200 to 750 N. m (150 to 550 ft. lbs.), Ingersoll Rand Model 5340-TO, Chicago Pneumatic Tool Co. equivalent, or equal Wrench, open end (engineers), single head, 0.26 radians (15°) Type V, Fed. Spec. GGG-W-636, as follows: 17 mm 19 mm 22 mm 24 mm 27 mm 32 mm 36 mm 41 mm 46 mm 51 mm (16/16 inch) (3/4 inch) (7/8 inch) (15/16 inch) (1 1/16 inch) (1 1/4 inch) (1 7/16 inch) (1 5/8 inch) (1 13/16 inch) (2 inch) Wrench, pipe II, Class A, 152 mm (1/8 254 mm (1/4 356 mm (1/2 457 mm i adj., steel, drop-forged, heavy duty, Type Fed. Spec. GGG-W-651 , as follows: (6 inch) Pipe cap. inch to 1/2 inch) (10 inch) Pipe cap, 3 mm to 13 mm inch to 1 (14 inch) inch to 1 (18 inch) (1 inch to 2 inch) inch) Pipe cap. 1/2 inch) Pipe cap. 6 mm to 25 mm 13 mm to 38 mm 25 mm to 51 mm 1 Ea, N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea N.O. 2 Ea 2 Ea 2 Ea, 2 Ea 2 Ea 10 15 20 25 30 35 40 102-22 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity 610 mm (24 inch) Pipe cap. 38 mm to 64 mm (1 1/2 inch to 2 1/2 inch) 2 Ea. 914 mm (36 inch) Pipe cap. 64 mm to 89 mm (2 1/2 inch to 3 1/2 inch) 2 Ea. 5 Wrench, plier, 200 mm (8 1/2 inch), Type I, Class I, Style B, Fed. Spec. GGG-W-00649 1 Ea. Wrench, (Key) socket-head screw, Type I, Class 1, Fed. Spec. GGG-K-275 (one each of the following sizes): 2 mm (3/32 inch), 3 mm (1/8 inch), 4 mm 10 (5/32 inch), 5 mm (3/16 inch), 5.5 mm (7/32 inch), 6 mm (1/4 inch), 8 mm (5/16 inch), 10 mm (3/8 inch), and 13 mm (1/2 inch) 1 Set Wrench, socket, midget, 40 mm (1/4 inch square) drive, 3 mm to 14 mm (1/8 inch to 9/16 inch) w/handle 15 and sliding tee, Williams Set No. WSM-1A, Snap-On Equiavalent 1 Set 2 Wrench, socket, standard, 161 mm (1/2 inch square) drive, 9 mm to 25 mm (3/8 inch to 1 inch), with reversible ratchet, Williams Set No. WSS-1A, Snap-On 20 equivalent, or equal 1 Set o Wrench, socket, heavy duty, 361 mm (3/4 inch square) drive, 25 mm to 50 mm (1 inch to 2 inch) w/attachments, Williams Set No. WSH-3A, Snap-On equivalent, or equal 1 Set 2 Wrench, socket, extra heavy duty, 625 mm (1 inch square) 25 drive, 32 mm to 60 mm (1 1/4 inch to 2 3/8 inch) w/attach- ments, Williams Set No. WSX-3, Snap-On equivalent, or equal 1 Set Wrench, socket, spin type, consisting of 1 Ea. hex. sizes: 4 mm (3/16 inch), 5 mm (7/32 inch), 6 mm (1/4 30 inch), 7 mm (9/32 inch), 8 mm (5/16 inch), and 9 mm (11/32 inch), Type I, Fed. Spec. GGG-W-657 1 Set Wrench, structural, offset handle, Type IX, Class 1, Fed. Spec. GGG-W-636, as follows: 36 mm (1 7/16 inch) N.O. 1 Ea. 35 41 mm (1 5/8 inch) 51 mm (2 inch) N.O. 1 Ea. N.O. 1 Ea. N.O. 1 Ea. 102-23 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION 6. STEWARDS DEPARTMENT - LINEN & BEDDING Description Apron, cooks, white duck, bib, 1060 mm x 900 mm (42 inch x 36 inch) Angelica No. 128-HHR or equal Apron, cotton, denim, blue, 710 mm x 1060 m (28 inch x 42 inch) Angelica No. 134-WBR or equal Bags, laundry, 0.34 kg (12 oz.) duck, 1450 mm (57 inch) circ, 1140 mm (45 inch) min. depth, brass grommets and suitable draw cord. Double bottom with round Bedspread, dress to be specified) Sr. Off. (Type, color and size Bedspread, cotton crinkle, 1600 mm x 2600 mm 63 inch x 99 inch) (Color to be specified) Type I, Fed. Spec. DDD-B-151 (Jr. Off.) Bedspread, cotton crinkle, 1420 mm x 2280 mm (56 inch x 90 inch) (Color to be specified) Type I, Fed. Spec. DDD-B-151 (Crew) Blanket, wool and nylon, 1830 mm x 2280 mm (72 inch x 90 inch) maroon, Type III, Fed. Spec. DDD-B-421 (Officers) Blanket, wool and nylon, 1575 mm x 84 inch) Dark blue, Type III, Fed. (Crew) 2130 mm (62 inch Spec. DDD-B-421 Caps, cooks, white twill Style 206-THS or equal medium crown, Angelica Cloth, table, white cotton damask, ivy pattern, Size: length and breadth of table plus 300 mm (12 inch) overhang on each side. Min. Wt. 0.19 kg/m (5.5 oz./sq. yd.) Simtex Colonnade or equal with Basco finish or equal (Officers) Coth, table, cotton, red and white check. Size: length and breadth of table plus 300 mm (12 inch) overhang on each side. Min. Wt. 0.18 kg/m (5.3 oz./sq. yd.) (Crew) Quantity *1 /cook/day 24 Ea. *8/week 10 2/berth *1 /berth/ week. Spares- 25% of total 15 *l/berth/ week. Spares- 25% of total 2/berth Spares -10% 20 of total 2/bergh Spares-10% of total *4/cook/ week *1 /table/ day. Spares- 25% of total 25 30 *l/table/ day. Spares- 25% of total 35 102-24 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Coat, cooks, white drill, elbow length sleeves Angelica Style 334-BBS or equal Coat, messmen's, white duck, Angelica Style 306-HHS or equal Coat, messmen's, hickory, elbow length sleeves, Angelica Style 304-WLS or equal Cover, mattress, unbleached cotton sheeting, preshrunk, to fit mattress sizes specified, Fed. Spec. DDD-C-628, except with zippered end (Officers and Crew) Cover, pillow, bleached cotton, 140 thread count, preshrunk, to fit pillow 530 mm x 680 mm (21 inch x 27 inch), with zippered end, Type II, Class 2, Fed. Spec. CCC-C-430 (Officers and Crew) Felt, table, cotton flannel, unbleached, size: length and breadth of table plus 75 mm (3 inch) overhang on each side, Fed. Spec. CCC-C-460 (Officers) Mat, bath, cotton, white terry, bleached, fin. size 500 mm x 760 mm (20 inch x 30 inch), weight 3.9 kg (8.60 lb.) per dozen. Turned selvedge (Officers) Mattresses (See Section 19) Pillow, Dupont dacron or equal, 530 mm x 680 mm (21 inch x 27 inch) cut size, non-allergenic, odorless (Officers and Crew) Pillowcase, polyester and cotton blend, 50/50 per- cent, 128/130-count, with 76 mm (3 inch) hem, to fit pillow 530 mm x 680 mm (21 inch x 27 inch) (Officers and Crew) Sheet, polyester and cotton blend, 50/50 percent 128/130-count, hems 76 mm and 25 mm (3 inch and 1 inch), size to suit berth (Officers and Crew) Quantity *l/cook/day *l/person eyery other day 24 Ea. 1/berth Spare-10% of total 2/berth Spares-25% of total 2/dining table *l/private bath/week 2/berth Spares-5% of total *2/0fficer & Crew/week Spares-25% *2/0fficer & Crew/week Spares-25% of total 10 15 20 25 30 35 102-25 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Towel, bath, cotton, terry, white, 560 mm x 1100 mm (22 inch x 44 inch) Type II, Class 1, Style B, Fed. Spec. DDD-T-551 (Officers and Crew) Towel, face, cotton, huck, white, 430 mm x 910 mm (17 inch x 36 inch) Type I, Class 2 (without woven design and stripe) Fed. Spec. DDD-T-531 (Officers and Crew) Towel, dish, cotton, bleached, white, 430 mm x 500 mm (17 inch x 20 inch) Type II, Fed. Spec. DDD-T-511 Towel, glass, cotton, 400 mm x 800 mm (16 inch x 32 inch) Class A (plain weave), Fed. Spec. DDD-T-501 Quantity *2/0fficer & Crew/week Spares-25% of total *2/0fficer & Crew/week Spares-25% of total *30/week *18/week *Ship's specifications shall indicate specific quantities of linen, based on length of voyage determined by Purchaser. 7. STEWARDS DEPARTMENT - CHINAWARE, OFFICERS Description All chinaware shall be in accordance with Fed. Spec. M-C-301 for material and workmanship. Design, size, and shape shall be as noted for each item. All items shall be hotel weight, rolled edge, white body, (decoration to be selected by Purchaser) Cup, bouillon, handled, Boston, 210 mL (7 oz.) Cup, coffee, Boston, 210 mL (7 oz.) Cug, egg, unhandled, 180 mL (6 oz.) Dish, celery (pickle) length 190 mm (7 1/2 inch) Dish, fruit, diam. 132 mm (5 1/4 inch) Dish, vegetable, oval baker, length 146 mm (5 3/4 inch) Jar, mustard, w/cover, 120 mL (4 oz.) Quantity Basic 1/pers Table= sons outfit= ;on : 4 per- Basic 50% plus Basic 150% plus 50% oi r basic 1/tabl 50% e plus Basic 100% plus Basic 100% plus 1/tabl 50% e 10 15 20 25 30 35 102-26 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Pitcher, cearm, handled, 135 mL (4 1/2 oz.) (omit 1/table if furnished under Article 11) plus 50% Plate, B&B, diam. 160 mm (6 1/4 inch) Basic plus 100% 5 Plate, dessert or salad, diam. 180 mm (7 1/8 inch) Basic plus 100% Plate, dinner, diam. 230 mm (9 inch) Basic plus 150% Plate, soup, diam. 230 mm (9 inch) Basic plus 10 100% Platter, length 230 mm (9 1/8 inch) 1/table plus 50% Platter, length 330 mm (13 1/4 inch) 1/table plus 50% 15 Saucer, coffee, diam. 150 mm (6 inch) Basic plus 150% 8. STEWARDS DEPARTMENT - CHINARWARE, CREW Description Quantity 20 All chinaware shall be in accordance with Fed. Spec. Basic out- M-C-301 for material and workmanship. Design, size fit=l/per- and shape shall be as noted for each item. All son - Table items shall be hotel weight, rolled edge, white = 6 persons body (decoration to be selected by Purchaser). 25 Dish, fruit, diam. 132 mm (5 1/4 inch) Basic plus 100% Dish, vegetable, oval baker, length 146 mm Basic plus (5 3/4 inch) 50% Mug, coffee, 240 mL (8 oz.) Basic plus 30 150% Pitcher, ceram, 135 mL (4 1/2 oz.) 1 /Table plus 50% Plate, dessert or salad, diam. 180 mm (7 1/8 inch) Basic plus 100% 35 Plate, dinner, diam. 230 mm (9 inch) Basic plus 100% 102-27 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Plate, soup, diam. 230 mm (9 inch) Platter, length 330 mm (13 1/4 inch) 9. STEWARDS DEPT. - CHINAWARE, FIREPROOF, COOKING WARE, Description All items shall be equal to Hall China Company or H.F. Coors Company, Inc. Size shall be as noted for each item. All items shall be white inside and dark green outside, unless otherwise specified. Baker, oval, 310 mL (10 1/2 oz.) Cup, custard, 180 mL (6 oz.) Dish, pot pie, 420 mL (14 oz.) Dish, shirred egg, round, French, 200 mL (6 3/4 oz.) Pitcher (Ball Jug) w/ice lip, 2 liter (2 qt.) Pot, coffee, w/sunken cover, 300 mL (10 oz.) Cover (extra) for 300 mL (10 oz.) coffee pot Pot, tea, w/sunken cover, 300 mL (10 oz.) Cover (extra) for 300 mL (10 oz.) tea pot Tub, ice or butter, 4 liter (4 1/2 qt.) 10. STEWARDS DEPARTMENT - GLASSWARE, OFFICERS AND CREW Description Unless otherwise noted, all glassware shall be of one design and in accordance with Fed. Spec. DD-T-101 Cruet, oil and vinegar, 180 mL (6 oz.) Type I, Item 8, Fig. 6 Quantity Basic plus li 1/table plus 50% OFFICERS Quantity 18 Ea. 18 Ea. 18 Ea. 12 Ea. 6 Ea. 6 Ea. 3 Ea. 6 Ea. 3 Ea. 1 Ea. Quantity Basic out- fit = 1/ peron Table = 4 persons 2/table plus 50% 10 15 20 25 30 102-28 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Dish, relish, diam. 200 mm (8 inch) 1/table plus 50% Dispenser, sugar, 360 mL (12 oz.) w/stainless steel 1/table cap, Bloomfield No. 99 or equal (omit if sugar bowl plus 50% 5 is furnished under Article 12) Glass, fruit juice, 180 mL (6 oz.) Type II, Item 1, Basic plus Fig. 12 100% Glass, iced tea, 360 mL (12 oz.) Type II, Item 3, Basic plus Fig. 15 100% 10 Glass, water 300 mL (10 oz.) (Off., S.R., ft Basic plus Messroom) (To fit S.R. tumbler holder), Type II, 300% Item 2, Fig. 13, Style A Pitcher, syrup, 420 mL (14 oz.) Type I, Item 6, 1/table Fig. 4 plus 50% 15 Pitcher, water, 4 liter (4 qt.) Type I, Item 11, 1/table Fig. 8 (Officers) plus 50% Shaker, salt and pepper, 60 mL (2 oz.) Type I, 2/table Item 16, Fig. 20 (metal top) plus 50% 11. STEWARDS DEPT. - HOLLOWARE & MISC. TABLEWARE, OFFICERS 20 Description Quantity Bowl, sugar, stainless steel, w/cover, 240 mL (Table=4 (8 oz.) Legion #S-31041 or equal (omit if china persons) 1/ or glass sugar bowls or dispensers are furnished) table plus 1 spare 25 Compote, cake, stainless steel, 250 mm (10 inch) diam., Legion #S-300B or equal 1 Ea. Cracker, nut, stainless steel 6 Ea. Pitcher, cream, stainless steel, 120 mL (4 oz.) 1/table Legion #S-30152, or equal (omit if china or glass plus 1 30 cream pitchers are furnished) spare Tongs, ice, stainless steel, length 165 mm (6 1/2 in) Bloomfield No. 3144 or equal 3 Ea. 102-29 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Tray, bread, stainless steel, oval, 250 mm (10 inch) 1/table Legion #S-3007A1 or equal plus 1 spare 12. STEWARDS DEPARTMENT - FLATWARE, OFFICERS AND CRES Description Quantity 5 All items shall be stainless steel, of one pattern and Basic outfit= in accordance with Fed. Spec. RR-F-450 1 /person Fork, table (utility) Basic plus 200% Knife, table (utility) Basic plus 10 200% Spoon, dessert Basic plus 100% Spoon, iced tea Basic plus 100% 15 Spoon, table, large 24 Ea. Spoon, tea Basic plus 200% 13. STEWARDS DEPARTMENT - GALLEY & PANTRY EQUIPMENT, PORTABLE Description Quantity 20 Board, meat cutting or carving, hard rubber composi- tion, 380 mm x 500 mm x 19 mm (15 inch x 20 inch x 3/4 inch) Park Rubber Co. or equal 2 Ea. Board, pastry or bread, hardwood, 450 mm x 610 mm x 19 mm (18 inch x 24 inch x 3/4 inch) 2 Ea. 25 Boiler, double, alum., 5 liter (5 1/2 qt.) Wear-Ever No. 4355 1/2 or equal 1 Ea. Bowl, mixing, stainless steel, 15 liter (4 gal.) Legion No. S-15343 or equal 1 Ea. Bowl, mixing, stainless steel, 26 liter (7 gal.) 30 Legion No. S-15344 1 Ea. Box, bread, stainless steel, 420 mm x 305 mm x 330 mm (16 1/2 inch x 12 inch x 13 inch) Nash No. S3 or equal 2 Ea. Can, garbage, gal v., w/cover, size to suit, Witt Cornice, Lisk-Savory, or equal 4 Ea. 35 102-30 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Canister, (Food storage container), stainless steel, 4 liter (4 1/2 qt.) round, w/cover, Polar No. 41 or equal 4 Ea. Chain, pot, steel wire, hotel type 3 Ea. 5 Cleaver, butchers, carbon steel, 216 mm (8 1/2 inch) blade, Lamson No. 828 or equal 1 Ea. Colander, alum., 10 liter (11 qt.) Wear-Ever No. 4711 or equal 1 Ea. Colander, alum., 15 liter (16 qt.) Wear-Ever No. 10 4616, or equal 1 Ea. Corer, apple, T-shaped, heavy tin 2 Ea. Corkscrew, self-pulling 3 Ea. Cutter, biscuit, alum, plain round, 70 mm (2 3/4 inch) diam. 1 Ea. 15 Cutter, butter, hand, 60 pats per 0.45 kg (lb.) Fed. Spec. GGG-C-743 1 Ea. Cutter, doughnut, alum. 70 mm (2 3/4 inch) diam. 1 Ea. Dipper, stainless steel, 1 liter (1 qt.) Bloomfield No. 177G or equal 1 Ea. 20 Disher, ice cream, stainless steel, Size 10, Bloomfield No. 402 or equal 2 Ea. Dredge, aluminum, with handle, 70 mm x 90 mm (2 3/4 inch x 3 3/4 inch) Wear-Ever No. 5062 or equal 4 Ea. Fork, cooks, 2-tine, carbon steel, 305 mm (12 inch) 25 overall, Lamson No. 67B or equal 3 Ea. Fork, cooks, 2-tine, carbon steel, 355 mm (14 inch) overall, Lamson No. 69B or equal 2 Ea. Funnel, stainless steel, 1 liter (1 qt.), Vollrath No. 84770 or equal 1 Ea. 30 Grate, icing, welded, 420 mm x 660 mm (16 1/2 inch x 26 inch) 2 Ea. 102-31 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Grater, half-round, coarse, heavy tin, 305 mm x 165 mm (12 inch x 6 1/2 inch) Grater, square, heavy tin, 230 mm x 110 mm x 85 mm (9 inch x 4 3/8 inch x 3 3/8 inch) Knife, boning, high carbon steel, 150 mm (6 inch) blade, Lamson No. 6282 or equal Knife, bread, stainless steel, serrated edge, 230 mm (9 inch) blade, Lamson No. 6s49 Knife, butcher, high carbon steel, 305 mm (12 inch) 10 blade, Lamson No. 6280 or equal Knife, cooks, french, chrome tool steel, 254 mm (10 inch) blade, Lamson No. 60766 or equal Knife, cooks, french, chrome tool steel, 305 mm (12 inch) blade, Lamson No. 60766 or equal 2 Ea. 15 Knife, grapefruit, stainless steel, double serrated edges, 90 mm (3 1/2 inch) Lamson No. 6sl2 or equal Knife, paring, carbon steel, 80 mm (3 1/4 inch) blade, Lamson No. 8215 or equal Knife, slicing, chrome tool steel, 350 mm (14 inch) 20 blade, Lamson No. 6803 or equal Ladle, stainless steel, 60 mL (2 oz.) bowl, Vol 1 rath No. 58620 or equal Ladle, stainless steel 180 mL (6 oz.) bowl, Vol 1 rath No. 58460 or equal 6 Ea. 25 Ladle, stainless steel 360 mL (12 oz.) bowl, Vol 1 rath No. 58500 or equal Measure, alum., graduated, 1 liter (1 qt.), Type IV, Style A, Fed. Spec. RR-K-260 Opener, can, steel, hand, w/corkscrew and bottle opener 3 Ea. 30 Opener, can, mechanical, table style, with spare feed gear and knife, Edlund No. 2 or equal 2 Ea. 102-32 uantity 1 Ea. 1 Ea. 1 Ea. 3 Ea. 1 Ea. 2 Ea. 2 Ea. 2 Ea. 6 Ea. 1 Ea. 2 Ea. 6 Ea. 2 Ea. 1 Ea. 3 Ea. Quantity 1 Ea. 3 Ea. 3 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Paddle, stirring, haMwood, 500 mm (20 inch) Pail, stainless steel, 12 liter (13 qt.) Vollrath No. 59120 or equal Pail, garbage, galv., w/cover, 23 liter (6 gal.) Witt Cornice or equal Pan, baking, alum., size 450 mm x 305 mm x 55 mm (17 3/4 inch x 12 inch x 2 1/4 inch), Type I, Fed. Spec. RR-P-54 4 Ea. Pan, baking sheet, alum., 4 sides, size 630 mm x 10 430 mm x 25 mm (25 1/8 inch x 17 1/8 inch x 1 inch) Type II, Fed. Spec. RR-P-54 4 Ea. Pan, bread and loaf, size inside 250 mm x 125 mm x 100 mm (10 inch x 5 inch x 4 inch) Wear-Ever No. A5435 or equal 6 Ea. 15 Pan, bread, pullman, 4X tin, #5 wire in rim, with sliding covers, size inside 480 mm x 100 mm x 100 mm (19 inch x 4 inch x 4 inch) Ekco No. B-2194P or equal 12 Ea. Pan, cake, layer, round, alum., diam. 230 mm (9 20 inch), depth, 38 mm (1 1/2 inch), Type III, Fed. Spec. RR-P-54 6 Ea. Pan, dish, alum., 20 liter (21 qt.) Type VI, Fed. Spec. RR-P-54 1 Ea. Pan, frying, steel, heavy duty, french style, top 25 diam. 215 mm (8 1/2 inch) Bloomfield No. 200 or equal 6 Ea. Pan, frying, steel, heavy duty, french style, top diam. 240 mm (9 3/8 inch) Bloomfield No. 240 or equal 2 Ea. Pan, frying, steel, heavy duty, french style, top diam. 310 mm (12 1/2 inch) Bloomfield No. 320 or equal 1 Ea. 30 Pan, frying, steel, heavy duty, oyster pattern, top diam. 530 mm (20 3/4 inch) Nash No. 119 or equal 1 Ea. Pan, muffin, alum., 12-cup, Type IV, Fed. Spec. RR-P-54 6 Ea. Pan, pudding or utility, alum., round, 3 liter (3 qt.) cap., Type VIII, Fed. Spec. RR-P-54 3 Ea. 35 102-33 Quantity 2 Ea. 2 Ea. 2 Ea. 2 Ea. 3 Ea. 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Pan, utility, alum., round, 10 liter (10 qt.) cap., Wear-Ever No. 4330 or equal Pan, roast, alum., size 450 mm x 600 mm x 110 mm (18 inch x 24 inch x 4 1/2 inch) w/out clips, Type I, Fed. Spec. RR-P-54 Pan, sauce, tapered, alum., 2.5 liter (2 1/2 qt.) cap., w/cover, Type VII, Style B, Fed. Spec. RR-P-54 Pan, sauce, tapered, alum., 4 liter (4 1/2 qt.) cap., w/cover, Type VII, Style B, Fed. Spec. RR-P-54 2 Ea. 10 Pan, sauce, deep, alum., 8 liter (8 1/2 qt.) cap., w/cover, Type, VII, Style A, Fed. Spec. RR-P-54 Pan, saute, alum., 7 liter (7 1/2 qt.) cap., w/cover, Wear-Ever No. 4074 or equal Percolator, coffee, electric, 2 liter (5 to 9 cup), 15 alum., automatic temperature control, West Bend No. 9466 or equal 3 Ea. Pin, rolling, hardwood, revolving handles, 80 mm (3 1/4 inch) diam., 530 mm (21 inch) long, Type I, Fed. Spec. LLL-R-530 1 Ea. 20 Pitcher, water, stainless steel, 2 liter (2 qt.) cap., Fed. Spec. RR-P-386 (For Crew's Messroom) Plate, pie, alum., reusable, 240 mm (9 1/2 inch) top outside diam., Type V, Fed. Spec. RR-P-54 Pot, bain marie (food storage) stainless steel, 2 25 liter (2 qt.) cap., Bollrath No. 78720, with No. 79040 cover, or equal Pot (Brazier) alum., 22 liter (24 qt.) cap, w/cover, Wear-Ever No. 4098 or equal Pot, sauce, deep, alum., 11 liter (12 qt.) cap., 30 w/cover, Type V, Style B, Fed. Spec. RR-B-500 Pot, sauce, deep, alum., 19 liter (20 qt.) cap., w/cover, Wear-Ever No. 4153 or equal Reamer, orange, glass, Type I, Fig. 1, Item 1, Fed. Spec. DD-T-101 2 Ea. 35 102-34 1 Ea. 4 Ea. 12 Ea. 4 Ea. 1 Ea. 2 Ea. 2 Ea. 2 Ea. Quai itity 1 Ea. 3 Ea. 1 Ea. 1 Ea. 1 Ea. 6 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Saw, meat, steel, 560 mm (22 inch) Disston No. K-070 or equal (with 2 spare blades) Scoop, kitchen, alum., 1.5 liter (1 1/2 qt.) cap., Type VI, Fed. Spec. RR-K-260 Scraper, bakers, carbon steel 150 mm (6 inch) wide, Lamson No. 6s6 or equal Sieve, Flour, alum., 400 mm (16 inch) diam., 14-mesh, Type VII, Fed. Spec. RR-K-260 Sifter, flour, rotary, tinned, Fed. Spec. RR-S-345 Ea. 10 Skewer, 150 mm (6 inch) stainless steel Skimmer, stainless steel, blade diam. 100 mm (4 1/4 inch) Vollrath No. 58840 or equal 2 Ea. Skimmer, stainless steel, blade diam. 150 mm (6 3/i inch) Vollrath No. 58860 or equal 2 Ea. 15 Slicer, egg, 2-way, Bloomfield No. 21 or equal 2 Ea. Spatula, carbon steel, 200 mm (8 inch) blade, Lamson No. 9003 or equal 1 Ea. Spatula, carbon steel, 250 mm (10 inch) blade, Lamson No. 9003 or equal 1 Ea. 20 Spoon, cooking, stainless steel, solid bowl, length 300 mm (11 3/4 inch) Vollrath No. 60120 or equal 6 Ea. Spoon, cooking, stainless steel, solid bowl, length 400 mm (15 1/2 inch) Vollrath No. 60160 or equal 2 Ea. 25 Spoon, cooking, stainless steel, perforated bowl, length 300 mm (11 3/4 inch) Vollrath No. 61120 or equal 4 Ea. Spoon, hardwood, mixing, 400 mm (16 inch) long 0A 1 Ea. Steel, butchers, carbon steel, 350 mm (14 inch) blade, Lamson No. 157 or equal 2 Ea. 30 Stone, sharpening, 200 mm x 50 mm x 25 mm (8 inch x 2 inch x 1 inch) combination, Type I, Class B, Fed. Spec. SS-S-736 1 Ea. 102-35 Quantity 1 Ea. 1 Ea. 2 Ea. 1 Ea. 1 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Strainer, china cap, stainless steel, 230 mm (9 inch) diam., fine, Nash No. S9F or equal Strainer, china cap, stainless steel, 300 mm (12 inch) diam., coarse, Nash No. S12C or equal Strainer, coffee and tea, tinned, 65 mm (2 1/2 inch) diam., 30-mesh Strainer, pot, alum., 5 liter (5 qt.) cap., 260 mm (10 3/8 inch) top diam., Wear-Ever No. 4605 or equal Ea. 10 Tenderizer, meat, cast alum., Bloomfield No. 43 or equal Tray, serving, rectangular, laminated plastic, solid brown, 550 mm x 400 mm (22 inch x 16 inch), Boltabilt No. 1622A or equal *6 Ea. 15 *(If cafeteria service, quantity of trays should be increased to 36) Turner, cake or egg, stainless steel, solid blade, 75 mm x 100 mm (3 inch x 4 inch) w/wood handle 2 Ea. Turner, cake or egg, stainless steel, perforated 20 blade, 75 mm x 100 mm (3 inch x 4 inch) w/wood handle 2 Ea. Whip, balloon shape, stainless steel, piano wire, 400 mm (16 inch) Metropolitan No. SC216 or equal 2 Ea. Whip, french style, stainless steel, 300 mm 25 (12 inch) Metropolitan No. SCI 1 2 or equal 1 Ea. 14. STEWARDS DEPT. - MISCELLANEOUS EQUIPMENT, PORTABLE Description Quantity Bar, wrecking, steel, 600 mm (24 inch), gooseneck, claw and pinch-point, Type V, Fed. Spec. GGG-B-101 1 Ea. 30 Bell, dinner, brass, hand, diam. mouth 125 mm (5 inch) 1 Ea. Bucket, steel, gal v., 13 liter (14 qt.) Type II, Fed. Spec. RR-P-35 6 Ea. 102-36 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Quantity Bucket, steel, galv., 18 liter (18 1/2 qt.) with attached roller-type mop wringer, Lisk-Savory No. 575-18 or equal 4 Ea. Cleaner, vacuum, portable, canister type, 750 5 watts, 115 volts AC/DC, single phase motor not less than 0.74 kW (1 HP) with 15m (50 ft.) 1.5 mm (16-gage) wire, rubber-covered. Furnished with standard attachments (stainless steel). "Filter Queen" Model 31, or "Silver-King", 10 or equal 1 Ea. Cup, force, plumbers' 140 mm (5 1/2 inch) diam. with 600 mm (24 inch) wood handle 3 Ea. Flashlight, 3-cell, hand (w/out batteries), heavy duty, Bright Star No. 1625 or equal 1 Ea. 15 Hatchet, claw, 100 mm (3 7/8 inch) bit, Type B, Fed. Spec. GGG-H-131 1 Ea. Hose, washdown (galley), 19 mm x 15 m (3/4 inch) x 50 ft.) wrapped, Fed. Spec. ZZ-H-601 , Grade 1, Class 1. Complete with suitable nozzle and standard com- 20 mercial clamp type couplings, male at one end and female at other end, National Standard hose thread, 11 1/2 threads per 25 mm (inch) 1 Ea. Machine, floor polishing, Ponsell Model Q-15, Kent Model K-16, or equal, 0.37 kW (1/2 HP) motor, for 25 operation for 115 volts AC, with 15 m (50 ft.) rubber-covered heavy duty cord. Furnished with 2 suitable polishing brushes and 2 scrubbing brushes 1 Ea. Mat, rubber, bath, 350 mm x 650 mm (14 inch x 26 30 inch) green, Rubbermaid No. 7021 or equal * *(Allowance: 1 per private bath) Pliers, combination with cutter, 200 mm (8 inch) Type II, Class 2, Style A, Fed. Spec. GGG-P-471 1 Ea. Rug, axminster, 700 mm x 1400 mm (27 inch x 54 inch) 35 Bigelow Beau Ville No. 1506, Mohasco equivalent, or equal. (Color and pattern to be selected by Purchaser.) * *(Allowance: 1 per Officers' S.R. and office, except where wall-to-wall carpet) 102-37 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Sprayer, insecticide, liquid, hand, 1 liter (1 qt.) cap. Thermometer, gal v. iron frame 380 mm (15 in) -34°C/54°C (-30°F/130°F), Moeller No. 380 or equal Tray, ash, plastic, black 15. OFFICE EQUIPMENT, PORTABLE Description Calculator, printing, electronic, 4-function, 14- digit capacity, Victor Model No. 19-4460 or equal Machine, duplicating, electric, spirit process, accommodates paper 450 mm x 350 mm (18 inch x 14 inch). Ditto Model 18D-70, Standard "Titan Rocket" Model T-18, or equal Machine, stapling Sharpener, pencil, Boston Model KS or equal (For Ship's Office, Captain, Chief Steward, Chart Room and Radio Room) Typewriter, standard model, elite type, Manual, 380 mm (15 inch) carriage (For Chief Engineer, Chief Mate, Chief Steward & Ship's Office) Typewriter, standard model, elite type, manual, 680 mm (27 inch) carriage (Ship's Office) Typewriter, Navy telegraphic keyboard, manual 280 mm (11 inch) carriage (For Radio Operator) 16. HOSPITAL AND MEDICAL EQUIPMENT, PORTABLE Description Atomizer, nose and throat, De Vilbiss No. DV-152 or equal Bag, ice, English type, rubberized cloth, diam. 230 mm (9 inch) Aloe No. RD-439 or equal Quantity 3 Ea. 3 Ea. 36 Ea. Quantity 2 Ea. 1 Ea. 3 Ea. 6 Ea. 1 Ea. 1 Ea. 1 Ea. Quantity 1 Ea. 2 Ea. 10 15 20 25 30 102-38 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Basin, pus, stainless steel, 0.5 liter (1/2 qt.), kidney shaped, Vol 1 rath No. 88580 or equal Basin, wash, stainless steel, 4 liter (4 qt.) Vollrath No. 97120 or equal Bedpan, adult, stainless steel, Vollrath No. 99010 or equal Book: "Ship's Medicine Chest & Medical Aid at Sea" (USPHS) Bottle, water, dual purpose, rubber, 2 liter (2 qt.), 10 Aloe No. R-50 or equal Bottle, prescription, 60 mL (2 oz.) Bottle, prescription, 180 mL (6 oz.) Catheter, soft rubber, size 12, Davol or equal Catheter, soft rubber, size 16, Davol or equal ! Ea. 15 Catheter, soft rubber, size 18, Davol or equal Crutches, wood, adjustable from 1060 mm to 1270 mm (42 inch to 50 inch) with rubber tip, Aloe No. S3732A or equal 1 Pr. Dispenser, salt tablet, hand operated, complete with 20 attachment bracket plate, 350-500 tablet cap., M.S. A. No. 82669 or equal Dropper, medicine, glass, straight Eye Cup, glass Finger cot, latex, medium 12 Ea. 25 Forceps, Kelly, hemostatic, straight, 140 mm (5 1/2 inch) long, stainless steel, Aloe No. B1126 or equal Forceps, mouse tooth, tissue, 150 mm (6 inch) long, stainless steel, Aloe No. B1230D or equal Forceps, plain splinter, 75 mm (3 inch) long, 30 stainless steel, Aloe No. B1201 or equal 102-39 Quantity 1 Ea. 1 Ea. 1 Ea. 1 Ea. 2 Ea. 12 Ea. 12 Ea. 1 Ea. 1 Ea. 1 Ea. 2 Ea. 12 Ea. 4 Ea. 12 Ea. 3 Ea. 1 Ea. 1 Ea. Quantity 1 Ea. 1 Ea. 3 Ea. 2 Ea. MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Forceps, thumb dressing, 140 mm (5 1/2 inch) long, stainless steel, Aloe No. Bl 231 C or equal Funnel, stainless steel, 200 mL (6 3/8 oz.) Vol 1 rath No. 84740 or equal Glasses, sun Glass, medicine, graduated, 30 mL (1 oz.) Gloves, surgeons', disposable latex, sterile, M&L, Aloe No. PR-11006 or equal 12 Pr. Irrigator, stainless steel, 2 liter (2 qt.) 10 with handle, complete with fittings including rectal tube, Vollrath No. 88920 or equal 1 Set Knife, blade, surgical, Bard-Parker No. 10 or equal (6-pkg.) 1 Pkg. Knife blade, surgical, Bard-Parker No. 11 or 15 equal (6-pkg.) 1 Pkg. Knife handle, Bard-Parker No. 3 or equal 2 Ea. Needle, hypodermic, stainless steel, 0.6 mm (24 gage), 19 mm (3/4 inch) long, regular point 6 Ea. Needle, hypodermic, stainless steel, 0.9 mm 20 (20 gage), 38 mm (1 1/2 inch) long, regular point 6 Ea. Resuscitator, portable, single unit, MSA No. 91797 or equal, complete with 2 Type D oxygen cynlinders 1 Ea. Roll, canvas, surgical instrument (empty) 1 Ea. Scissors, bandage, Lister, chrome-plated, 180 mm 25 (7 1/4 inch) long, Aloe No. B1979 or equal 1 Ea. Scissors, operating, stainless steel, straight, 140 mm (5 1/2 inch) long, Aloe No. B1074C or equal 1 Ea. Shade, eye, single w/tie tapes 6 Ea. Sheet, neoprene, 0.9 mm (20 gage), maroon, 900 mm x 30 1800 (36 inch x 72 inch) Aloe No. R135 or equal 1 Ea. 102-40 MARITIME ADMINISTRATION STANDARD SPECIFICATIONS FOR SLOW SPEED DIESEL MERCHANT SHIP CONSTRUCTION Description Splint, arm, Thomas, hinged, adult Splint, basswood, 90 mm x 450 mm (3 1/2 inch x 18 inch) Splint, leg, Thomas, adult, full ring, 660 mm (26 inch) I.D. Stretcher (Litter), Stokes, splint type, alum., M.S. A. No. 30161 Suspensory, w/leg straps (2 small, 2 medium, 2 large) ' 6 Ea. 10 Syringe, hypodermic, 2 mL (2 cc), resistance glass, regular tip Syringe, hypodermic, 5 mL (5 cc), resistance glass, regular tip Syringe, Asepto, catheter tip, 30 mL (1 oz.) 15 Aloe No. BD-7161 or equal Thermometer, oral, clinical, Aloe No. A181 or equal Thermometer, rectal, clinical, Aloe No. A182 or equal Tin, ointment, plain top, 30 mL (1 oz.) Tourniquet, U.S. Army Type, rubber, 900 mm (36 inch) 20 black Quantity 1 Ea. 12 Ea. 2 Ea. 2 Ea. 6 Ea. 2 Ea. 2 Ea. 1 Ea. 2 Ea. 1 Ea. 48 Ea. 2 Ea. Tray, instrument, covered, stainless steel, 300 mm x 200 mm (12 1/8 inch x 7 5/8 inch) Vollrath No. 83120 or equal 1 Ea. Urinal, male, stainless steel, 240 mm (9 1/2 inch) 25 long, Vollrath No. 89150 or equal 1 Ea. «U S GOVERNMENT PRINTING OFFICE : 1980 311-046/159 102-41 0-0 PENN STATE UNIVERSITY LIBRARIES IIIIIIIIIIIIIIIIIIIII ADD0D715bSEflS