RUSSIAN MARITIME REGISTER OF SHIPPING Corr. RULES FOR THE CLASSIFICATION AND CONSTRUCTION OF MANNED SUBMERSIBLES AND SHIP'S DIVING SYSTEMS 2018 Rules for the Classification and Construction of Manned Submersibles and Ship's Diving Systems have been approved in accordance with the established approval procedure and come into force on 1 January 2018. The Rules establish specific requirements for the manned submersibles, including the passenger submersibles and ship's diving systems, and supplement the Rules for the Classification and Construction of Sea-Going Ships, Rules for the Equipment of Sea-Going Ships and Rules for the Cargo Handling Gear of Sea-Going Ships, as well as the Rules for Technical Supervision During Construction of Ships and Manufacture of Materials and Products for Ships. With this in view, all the applicable requirements of the above Rules cover the manned submersibles and ship's diving systems, unless other requirements are contained in these Rules. Where the above Rules are applied to the manned submersibles and ship's diving systems, the term "ship" shall also mean the manned submersible and ship's diving system. ISBN 978-5-89331-249-2 © Российский морской регистр судоходства, 2018 CONTENTS GENERAL REGULATIONS FOR THE CLASSIFICATION AND OTHER ACTIVITY RELATING TO MANNED SUBMERSIBLES AND SHIP'S DIVING SYSTEMS 1 Terms and definitions 11 2 Classification and other activity 20 3 Rules and other normative documents 22 3.1 Application 22 3.2 Application of the Rules 23 3.3 Departures from the requirements of the Rules 23 4 Documents 24 PART I. CLASSIFICATION 1 General 27 1.1 Application 27 2 Class of manned submersibles and ship's diving systems 27 2.1 Character of classification of manned submersibles and ship's diving systems built under the RS supervision 27 2.2 Character of classification of manned submersibles and ship's diving systems built without the RS supervision 28 2.3 Additional notations for manned submersibles and ship's diving systems 29 3 Classification surveys of manned submersibles and ship's diving systems under construction 29 4 Classification surveys of manned submersibles and ship's diving systems in service 30 4.1 General 30 4.2 Survey of passenger submersibles in service 31 5 Technical documentation of manned submersibles and ship's diving systems 37 5.1 Technical design of manned submersibles and ship's diving systems under construction 37 5.2 Technical documentation of converted or reconstructed manned submersibles and ship's diving systems 43 3 5.3 Working drawings of manned submersibles and ship's diving systems under construction 44 Appendix 1. Nomenclature of items surveyed by the Register during construction, installation and testing of manned submersibles and ship's diving systems 45 Appendix 2. Scope of periodical surveys of manned submersibles and ship's diving systems 53 PART П. HULL 1 General 63 1.1 Application 63 1.2 Definitions and explanations 63 1.3 Scope of surveys 65 1.4 Symbols 66 2 Materials and welding 69 2.1 Steel for hull structures 69 2.2 Welding consumables and welding joints for hull structures 70 3 Strength calculations 72 3.1 General 72 3.2 Design pressure 74 3.3 Allowable stress levels 75 3.4 Calculation of cylindrical shells 77 3.5 Calculation of conical shells 87 3.6 Calculation of spherical and near-spherical shells 90 3.7 Reinforcement of openings 93 3.8 Requirements for manufacture accuracy and shape measurements of pressure-resistant structures 101 3.9 External structures 105 4 Hydraulic tests 108 4.1 Testing of pressure-resistant structures 108 4.2 Testing of light structures 109 5 Structure and strength of external hulls made of non-metallic composite materials 109 5.1 General 109 5.2 Hull laminates 112 5.3 Framing 112 4 5.4 Openings in structures 115 5.5 Joints 116 Appendix 1. Recommended types of glass-reinforced plastics. ... 120 Appendix 2. Physical and mechanical properties of glass-reinforced plastics 121 Appendix 3. Guidelines for strength calculations 129 PART Ш. EQUIPMENT, ARRANGEMENTS AND OUTFIT 1 General 132 1.1 Application 132 1.2 Definitions and explanations 132 1.3 Scope of surveys 132 2 Arrangements and closing devices of openings in pressure hull and pressure bulkheads of manned submersibles, diving bells and compression chambers 133 2.1 General 133 2.2 General requirements for hatches of manned submersibles, diving bells and compression chambers 134 2.3 Hatches of manned submersibles and diving bells 135 2.4 Hatches and air locks of compression chambers 136 2.5 View ports 138 3 Manoeuvring and directional stability facilities of manned submersibles 139 4 Propulsive systems 140 5 Submergence and ballasting facilities 140 6 Emergency release devices for jettisonable ballast and other equipment external to the pressure hull 144 7 Mating system for connection of lock-out submersibles, diving bells to compression chambers and compression chambers to one another 144 8 Emergency release devices of the support wire rope and umbilical 147 9 Lifting lugs, crossbeams and lifting gear of manned submersibles and diving bells 147 10 Life-saving appliances, signal and emergency signal means. 148 11 Hyperbaric evacuation systems 150 12 Launching appliances for hyperbaric evacuation systems .... 156 5 13 Access and protective means in passenger submersibles 158 14 Production modules of ship's diving systems and manned submersibles 158 PART TV. BUOYANCY, STABILITY AND UNSINKABII.ITY 1 General 160 1.1 Application 160 1.2 Definitions and explanations 160 1.3 Scope of surveys 161 2 Buoyancy and unsinkability 161 2.1 Buoyancy in surface position 161 2.2 Buoyancy in submerged position 163 3 Stability 163 3.1 Requirements for initial stability of manned submersibles, diving bells and evacuation systems of ship's diving system in surface and submerged positions 164 3.2 Requirements for transition stability 164 4 Requirements for the Stability Booklet 165 5 Additional requirements for buoyancy, stability and emergency surfacing of passenger submersibles 166 Appendix 1. Instructions for reballasting of manned submersible . 167 Appendix 2. Instructions for experimental determination of manned submersible stability 170 Appendix 3. Instructions for drawing up the Stability Booklet ... 174 PART V. FIRE PROTECTION 1 General 175 1.1 Application 175 1.2 Definitions and explanations 175 1.3 Scope of surveys 176 2 Structural fire protection 176 3 Fire fighting equipment and systems 178 4 Fire detection and alarm system 180 6 5 Fire fighting outfit 181 6 Additional requirements for passenger submersibles 182 PART VL MACHINERY INSTALLATIONS, MECHANICAL EQUIPMENT AND SYSTEMS 1 General 183 1.1 Application 183 1.2 Definitions and explanations 183 1.3 Scope of surveys 184 2 Machinery installations and mechanical equipment 184 2.1 General requirements 184 2.2 Compressor plants 186 3 Heat exchangers and pressure vessels 188 3.1 General 188 3.2 Pressure vessels 188 3.3 Heat exchangers 190 3.4 Fittings and safely devices 190 3.5 Special requirements for compression chambers 192 3.6 Special requirements for diving bells, half-bells and diving stages 197 4 Systems and piping 201 4.1 General 201 4.2 Submergence and surfacing systems 204 4.3 Life support systems 205 4.4 Emergency life support system 214 4.5 Ventilation and air conditioning 218 4.6 Fittings and safely devices 218 4.7 Diving hoses 220 4.8 Control stations and panels 221 4.9 Instrumentation 227 PART VII. ELECTRICAL EQUIPMENT 1 General 230 1.1 Application 230 7 1.2 Definitions and explanations 230 1.3 Scope of surveys 230 2 Electrical installation 232 2.1 Electrical power sources of tethered manned submersibles and ship's diving systems 232 2.2 Electrical power sources of self-sustained manned submersibles. 233 2.3 Electrical power sources of ship's diving systems 234 2.4 Electrical power distribution and allowable voltage 235 2.5 Power supply of essential services 236 2.6 Distribution gear and protective devices 237 2.7 Electric drives of machinery and equipment 238 2.8 Lighting 238 2.9 Service telephone communication and video monitoring 239 2.10 Cabling 242 2.11 Cable penetrations in the pressure hull 244 2.12 Accumulator batteries and charging facilities 245 2.13 Design of electrical equipment 247 2.14 Automation systems and equipment 249 2.15 Electrical water heaters 250 PART VIII. RADIO AND SONAR EQUIPMENT 1 General 251 1.1 Application 251 1.2 Definitions and explanations 251 1.3 Scope of surveys 251 1.4 Technical documentation 252 2 List of radio and sonar equipment 252 2.1 General 252 2.2 Sources of power supply to radio and sonar equipment 253 3 Design of radio and sonar equipment 253 3.1 Communications sonar system 254 3.2 VHF radio station 254 3.3 Emergency sonar beacon with a fixed frequency of 37,5 kHz . 254 3.4 Emergency receiver of sonar signals at a fixed frequency of 37,5 kHz 255 4 Location of radio and sonar equipment 256 8 PART IX. NAVIGATIONAL EQUIPMENT 1 General 257 1.1 Application 257 1.2 Definitions and explanations 257 1.3 Scope of surveys 257 1.4 Technical documentation 258 2 List of navigational equipment of manned submersible, ship's diving systems and support ship 258 2.1 General 258 2.2 List of navigational equipment of manned submersibles 259 3 Design of navigational instruments and devices 260 3.1 Depth indicator 260 3.2 Sonar 260 3.3 Automated navigational system 260 4 Location of navigational equipment 261 PART X. SHIPBOARD HANDLING SYSTEMS OF MANNED SUBMERSIBLES AND SHIP'S DIVING SYSTEMS 1 General 262 1.1 Application 262 1.2 Definitions and explanations 262 1.3 Scope of surveys 263 1.4 Technical documentation 263 2 General technical requirements 264 3 Design standards 267 3.1 General 267 3.2 Design loads and stresses 268 3.3 Allowable stresses, safety and stability margins 268 3.4 Calculation of machinery 269 4 Metal structures 269 5 Machinery 270 5.1 General 270 5.2 Safely devices and control devices 273 9 6 Interchangeable components, steel wire ropes and chains...