Rules for the Classification of Naval Submarines · Rules for the Classification of Naval...

Rules for the Classification of Naval Submarines

PART A - Classification and Surveys PART B - Main Design Principles and Stability PART C - Pressure Hull and Structures PART D - Systems PART E - Fire Safety and Human Occupancy PART F - Additional Class Notations

NR 535 DT R00 E September 2016

Marine & Offshore Division 92571 Neuilly sur Seine Cedex – France

Tel: + 33 (0)1 55 24 70 00 – Fax: + 33 (0)1 55 24 70 25 Website: http://www.veristar.com

Email: [email protected] 2016 Bureau Veritas - All rights reserved

ARTICLE 11.1. - BUREAU VERITAS is a Society the purpose of whose Marine & Offshore Division (the "Society") isthe classification (" Classification ") of any ship or vessel or offshore unit or structure of any type or part ofit or system therein collectively hereinafter referred to as a "Unit" whether linked to shore, river bed or seabed or not, whether operated or located at sea or in inland waters or partly on land, including submarines,hovercrafts, drilling rigs, offshore installations of any type and of any purpose, their related and ancillaryequipment, subsea or not, such as well head and pipelines, mooring legs and mooring points or otherwiseas decided by the Society.The Society:• "prepares and publishes Rules for classification, Guidance Notes and other documents (" Rules ");• "issues Certificates, Attestations and Reports following its interventions (" Certificates ");• "publishes Registers.1.2. - The Society also participates in the application of National and International Regulations or Stand-ards, in particular by delegation from different Governments. Those activities are hereafter collectively re-ferred to as " Certification ".1.3. - The Society can also provide services related to Classification and Certification such as ship andcompany safety management certification; ship and port security certification, training activities; all activi-ties and duties incidental thereto such as documentation on any supporting means, software, instrumen-tation, measurements, tests and trials on board.1.4. - The interventions mentioned in 1.1., 1.2. and 1.3. are referred to as " Services ". The party and/or itsrepresentative requesting the services is hereinafter referred to as the " Client ". The Services are pre-pared and carried out on the assumption that the Clients are aware of the International Maritimeand/or Offshore Industry (the "Industry") practices.1.5. - The Society is neither and may not be considered as an Underwriter, Broker in ship's sale or char-tering, Expert in Unit's valuation, Consulting Engineer, Controller, Naval Architect, Manufacturer, Ship-builder, Repair yard, Charterer or Shipowner who are not relieved of any of their expressed or impliedobligations by the interventions of the Society.ARTICLE 22.1. - Classification is the appraisement given by the Society for its Client, at a certain date, following sur-veys by its Surveyors along the lines specified in Articles 3 and 4 hereafter on the level of compliance ofa Unit to its Rules or part of them. This appraisement is represented by a class entered on the Certificatesand periodically transcribed in the Society's Register.2.2. - Certification is carried out by the Society along the same lines as set out in Articles 3 and 4 hereafterand with reference to the applicable National and International Regulations or Standards.2.3. - It is incumbent upon the Client to maintain the condition of the Unit after surveys, to presentthe Unit for surveys and to inform the Society without delay of circumstances which may affect thegiven appraisement or cause to modify its scope.2.4. - The Client is to give to the Society all access and information necessary for the safe and efficientperformance of the requested Services. The Client is the sole responsible for the conditions of presenta-tion of the Unit for tests, trials and surveys and the conditions under which tests and trials are carried out. ARTICLE 33.1. - The Rules, procedures and instructions of the Society take into account at the date of theirpreparation the state of currently available and proven technical knowledge of the Industry. Theyare a collection of minimum requirements but not a standard or a code of construction neither aguide for maintenance, a safety handbook or a guide of professional practices, all of which areassumed to be known in detail and carefully followed at all times by the Client.Committees consisting of personalities from the Industry contribute to the development of those docu-ments.3.2. - The Society only is qualified to apply its Rules and to interpret them. Any reference to themhas no effect unless it involves the Society's intervention.3.3. - The Services of the Society are carried out by professional Surveyors according to the applicableRules and to the Code of Ethics of the Society. Surveyors have authority to decide locally on matters re-lated to classification and certification of the Units, unless the Rules provide otherwise. 3.4. - The operations of the Society in providing its Services are exclusively conducted by way of ran-dom inspections and do not in any circumstances involve monitoring or exhaustive verification.ARTICLE 44.1. - The Society, acting by reference to its Rules:• "reviews the construction arrangements of the Units as shown on the documents presented by the Cli-

ent;• "conducts surveys at the place of their construction;• "classes Units and enters their class in its Register;• "surveys periodically the Units in service to note that the requirements for the maintenance of class are

met. The Client is to inform the Society without delay of circumstances which may cause the date or theextent of the surveys to be changed.ARTICLE 55.1. - The Society acts as a provider of services. This cannot be construed as an obligation bearingon the Society to obtain a result or as a warranty.5.2. - The certificates issued by the Society pursuant to 5.1. here above are a statement on the levelof compliance of the Unit to its Rules or to the documents of reference for the Services provided for.In particular, the Society does not engage in any work relating to the design, building, productionor repair checks, neither in the operation of the Units or in their trade, neither in any advisory serv-ices, and cannot be held liable on those accounts. Its certificates cannot be construed as an im-plied or express warranty of safety, fitness for the purpose, seaworthiness of the Unit or of its valuefor sale, insurance or chartering.5.3. - The Society does not declare the acceptance or commissioning of a Unit, nor of its construc-tion in conformity with its design, that being the exclusive responsibility of its owner or builder. 5.4. - The Services of the Society cannot create any obligation bearing on the Society or constitute anywarranty of proper operation, beyond any representation set forth in the Rules, of any Unit, equipment ormachinery, computer software of any sort or other comparable concepts that has been subject to any sur-vey by the Society.

ARTICLE 66.1. - The Society accepts no responsibility for the use of information related to its Services which was notprovided for the purpose by the Society or with its assistance.6.2. - If the Services of the Society or their omission cause to the Client a damage which is provedto be the direct and reasonably foreseeable consequence of an error or omission of the Society,its liability towards the Client is limited to ten times the amount of fee paid for the Service havingcaused the damage, provided however that this limit shall be subject to a minimum of eight thou-sand (8,000) Euro, and to a maximum which is the greater of eight hundred thousand (800,000)Euro and one and a half times the above mentioned fee. These limits apply regardless of fault in-cluding breach of contract, breach of warranty, tort, strict liability, breach of statute, etc.The Society bears no liability for indirect or consequential loss whether arising naturally or not asa consequence of the Services or their omission such as loss of revenue, loss of profit, loss of pro-duction, loss relative to other contracts and indemnities for termination of other agreements.6.3. - All claims are to be presented to the Society in writing within three months of the date when the Serv-ices were supplied or (if later) the date when the events which are relied on of were first known to the Client,and any claim which is not so presented shall be deemed waived and absolutely barred. Time is to be in-terrupted thereafter with the same periodicity. ARTICLE 77.1. - Requests for Services are to be in writing.7.2. - Either the Client or the Society can terminate as of right the requested Services after givingthe other party thirty days' written notice, for convenience, and without prejudice to the provisionsin Article 8 hereunder. 7.3. - The class granted to the concerned Units and the previously issued certificates remain valid until thedate of effect of the notice issued according to 7.2. here above subject to compliance with 2.3. here aboveand Article 8 hereunder.7.4. - The contract for classification and/or certification of a Unit cannot be transferred neither assigned.ARTICLE 88.1. - The Services of the Society, whether completed or not, involve, for the part carried out, the paymentof fee upon receipt of the invoice and the reimbursement of the expenses incurred.8.2. - Overdue amounts are increased as of right by interest in accordance with the applicable leg-islation.8.3. - The class of a Unit may be suspended in the event of non-payment of fee after a first unfruitfulnotification to pay.ARTICLE 99.1. - The documents and data provided to or prepared by the Society for its Services, and the informationavailable to the Society, are treated as confidential. However:• "Clients have access to the data they have provided to the Society and, during the period of classifica-

tion of the Unit for them, to the classification file consisting of survey reports and certificates which have been prepared at any time by the Society for the classification of the Unit ;

• "copy of the documents made available for the classification of the Unit and of available survey reports can be handed over to another Classification Society, where appropriate, in case of the Unit's transfer of class;

• "the data relative to the evolution of the Register, to the class suspension and to the survey status of the Units, as well as general technical information related to hull and equipment damages, may be passed on to IACS (International Association of Classification Societies) according to the association working rules;

• "the certificates, documents and information relative to the Units classed with the Society may be reviewed during certificating bodies audits and are disclosed upon order of the concerned governmen-tal or inter-governmental authorities or of a Court having jurisdiction.

The documents and data are subject to a file management plan.ARTICLE 1010.1. - Any delay or shortcoming in the performance of its Services by the Society arising from an eventnot reasonably foreseeable by or beyond the control of the Society shall be deemed not to be a breach ofcontract.ARTICLE 1111.1. - In case of diverging opinions during surveys between the Client and the Society's surveyor, the So-ciety may designate another of its surveyors at the request of the Client. 11.2. - Disagreements of a technical nature between the Client and the Society can be submitted by theSociety to the advice of its Marine Advisory Committee.ARTICLE 1212.1. - Disputes over the Services carried out by delegation of Governments are assessed within theframework of the applicable agreements with the States, international Conventions and national rules.12.2. - Disputes arising out of the payment of the Society's invoices by the Client are submitted to the Courtof Nanterre, France, or to another Court as deemed fit by the Society.12.3. - Other disputes over the present General Conditions or over the Services of the Society areexclusively submitted to arbitration, by three arbitrators, in London according to the ArbitrationAct 1996 or any statutory modification or re-enactment thereof. The contract between the Societyand the Client shall be governed by English law.ARTICLE 1313.1. - These General Conditions constitute the sole contractual obligations binding together theSociety and the Client, to the exclusion of all other representation, statements, terms, conditionswhether express or implied. They may be varied in writing by mutual agreement. They are not var-ied by any purchase order or other document of the Client serving similar purpose.13.2. - The invalidity of one or more stipulations of the present General Conditions does not affect the va-lidity of the remaining provisions. 13.3. - The definitions herein take precedence over any definitions serving the same purpose which mayappear in other documents issued by the Society.

BV Mod. Ad. ME 545 L - 7 January 2013

MARINE & OFFSHORE DIVISIONGENERAL CONDITIONS

RULES FOR THE CLASSIFICATION OF NAVAL SUBMARINES

Part A Classification and Surveys

Part B Main Design Principles and Stability

Part C Pressure Hull and Structures

Part D Systems

Part E Fire Safety and Human Occupancy

Part F Additional Class Notations

September 2016

Unless otherwise specified, Part A of these rules apply on September 1st,2016. The Society may refer to the contents hereof before September 1st,2016, as and when deemed necessary or appropriate.Unless otherwise specified, Parts B to F of these rules apply to naval subma-rines for which contracts are signed after September 1st, 2016. The Societymay refer to the contents hereof before September 1st, 2016, as and whendeemed necessary or appropriate.

2 Bureau Veritas - Rules for Naval Submarines September 2016

PART A CLASSIFICATION AND SURVEYS

PART A, CHAPTER 1PRINCIPLES OF CLASSIFICATION AND CLASS NOTATIONS

Section 1 General Principles of Classification

1 Principles of classification 59

1.1 Purpose of the Rules1.2 General definitions1.3 Meaning of classification, scope and limits1.4 Request for services1.5 Register

2 Rules 61

2.1 Effective date2.2 Equivalence2.3 Novel features2.4 Disagreement and appeal

3 Duties of the Interested Parties 61

3.1 International and national regulations3.2 Surveyor’s intervention3.3 Operation and maintenance of submarines3.4 Use of measuring equipment and of service suppliers3.5 Spare parts

Section 2 Classification Notations

1 General 63

1.1 Purpose of the classification notations1.2 Types of notations assigned

2 Class symbol 63

2.1 General

3 Construction marks 63

3.1 General3.2 List of construction marks3.3 Certification of specific equipment

4 Service notations 64

4.1 General4.2 Naval conventional submarines

5 Navigation and operating area notations 64

5.1 Navigation notations5.2 List of navigation notations

September 2016 Bureau Veritas - Rules for Naval Submarines 3

6 Additional class notations 65

6.1 General6.2 Refrigerating installations6.3 Health, safety and environment (HSE)6.4 Air independent propulsion (AIP) 6.5 Collision residual strength (CollRES)6.6 Anchoring 6.7 Refuge compartment

Appendix 1 Quay and Sea Trials

1 General 66

1.1 Application1.2 Purpose of shipboard tests1.3 Documentation to be submitted

2 General requirements for shipboard tests 66

2.1 Trials ashore2.2 Sea trials

3 Shipboard tests for machinery 67

3.1 Conditions of sea trials3.2 Navigation and manoeuvring tests3.3 Tests of diesel engines 3.4 Test of batteries3.5 Tests of electric propulsion system3.6 Tests of main propulsion shafting and propellers3.7 Tests of piping systems3.8 Tests of steering gear3.9 Tests of other systems

4 Inspection of machinery after sea trials 69

4.1 General4.2 Diesel engines

Appendix 2 Safety File

1 General 70

1.1 Safety file purpose 1.2 Risks

2 Composition of the safety file 70

2.1 Structure of safety file


PART A, CHAPTER 2ASSIGNMENT, MAINTENANCE AND WITHDRAWAL OF CLASS

Section 1 Assignment of Class

1 General 73

1.1 Criteria1.2 Confidentiality

2 New building procedure 73

2.1 Submarines surveyed by the Society during construction2.2 Other cases2.3 Documentation

3 Date of initial classification 74

3.1 Definitions

4 Reassignment of class 74

4.1 Conditions

Section 2 Maintenance of Class

1 General principles of surveys 75

1.1 Survey types1.2 Change of periodicity, postponement or advance of surveys1.3 Extension of scope of survey1.4 General procedure of survey1.5 Appointment of another Surveyor

2 Definitions and procedures related to surveys 76

2.1 General2.2 Terminology related to hull survey2.3 Procedures for structural non destructive testing2.4 Preparations and conditions for surveys2.5 Access to structures2.6 Equipment for surveys2.7 Repairs and maintenance during mission2.8 Repairs

3 Certificate of Classification: issue, validity, endorsement and renewal 78

3.1 Issue of Certificate of Classification3.2 Validity of Certificate of Classification, maintenance of class3.3 Endorsement of Certificate of Classification3.4 Status of surveys and recommendations

4 Class renewal survey 79

4.1 General principles

5 Bi-annual surveys 79

5.1 General principles5.2 Links between anniversary dates,

bi-annual surveys and class renewal surveys


6 Occasional surveys 80

6.1 General6.2 Damage and repair surveys6.3 Conversions, alterations and repairs6.4 Quality System audits

7 Change of ownership 80

7.1

8 Lay-up and re-commissioning 80

8.1 General principles

Section 3 Suspension and Withdrawal of Class

1 General 82

1.1 Discontinuance of class1.2 Suspension of class1.3 Withdrawal of class1.4 Suspension/withdrawal of additional class notations

Appendix 1 Planned Maintenance Survey System

1 General 84

1.1

2 Conditions and procedures for the approval of the system 84

2.1 General2.2 Documentation2.3 Information

3 Implementation of the system 85

3.1

4 Surveys 85

4.1 Implementation survey4.2 Bi-annual audit and confirmatory surveys4.3 Damage and repairs

5 Suspension of the authorization given to the person officially responsible for the maintenance or the delegated technical personnel 86

5.1


PART A, CHAPTER 3SCOPE OF SURVEYS

Section 1 Bi-annual Survey

1 General 88

1.1

2 Pressure hull, structures and hull equipment 88

2.1 Pressure hull and structures2.2 Hull equipment

3 Machinery and systems 88

3.1 General machinery installations3.2 Machinery items surveyed on the basis of condition monitoring3.3 Communication and navigation3.4 Electrical machinery and equipment3.5 Fire protection, detection and extinction 3.6 Human occupancy3.7 General emergency alarm system

4 Stability 91

4.1 Documentation4.2 Draught

Section 2 Class Renewal Survey

1 General 92

1.1

2 Pressure hull, structures and hull equipment 92

2.1 Pressure hull2.2 Other structures2.3 Hull equipment2.4 Other dry compartments2.5 Hull opening moving equipment 2.6 Non Destructive Testing

3 Machinery and systems 93

3.1 General3.2 Main and auxiliary engines3.3 Reduction gears, main thrust and intermediate shaft(s) and tailshaft3.4 Systems resisting to sea water pressure3.5 Pumps and other machinery items 3.6 Systems in machinery spaces3.7 Electrical equipment and installations3.8 Controls3.9 Communication and navigation3.10 Fire protection, detection and extinction3.11 Human occupancy

4 Stability 96

4.1 Permanent ballast


PART A, CHAPTER 4SCOPE OF SURVEYS RELATED TO ADDITIONAL CLASS NOTATIONS

Section 1 General

1 General 99

1.1

2 Additional class notations subject to additional surveys 99

2.1

Section 2 REF-STORE Notation

1 General 100

1.1

2 Bi-annual survey 100

2.1 General2.2 Refrigerating plant2.3 Refrigerated spaces2.4 Instrumentation and safety devices

3 Class renewal survey 100

3.1 General 3.2 Refrigerating plant3.3 Refrigerated spaces3.4 Instrumentation and safety devices

Section 3 Other Notations

1 General 102

1.1

2 ANCHORING 102

2.1 Bi-annual survey2.2 Class renewal survey

3 REFUGE 102

3.1 Bi-annual survey3.2 Class renewal survey


PART B MAIN DESIGN PRINCIPLES AND STABILITY

PART B, CHAPTER 1DEFINITIONS AND MAIN DESIGN PRINCIPLES

Section 1 Application

1 General 107

1.1 Requirements

Section 2 Symbols and Definitions

1 Units 108

1.1

2 Symbols 108

2.1

3 Definitions 108

3.1 Submarine ship3.2 Designer3.3 Builder3.4 Operator3.5 Crew3.6 Naval Authority or Administration3.7 Depth3.8 Length3.9 Perpendiculars3.10 Baseline3.11 Breadth3.12 Reference density3.13 Height overall3.14 Bilge zone3.15 Accidental level3.16 Default level3.17 Platform attitudes3.18 Keeping situations3.19 Ship safety functions3.20 Ship ultimate function3.21 Safety target of the ship3.22 Ultimate target of the ship

4 Reference co-ordinate system 110

4.1

Section 3 Environmental Conditions and Operational Limits

1 Application 111

1.1


2 Definitions 111

2.1 Normal environment2.2 Exceptional environment

3 External environmental conditions 111

3.1 General

4 Internal environmental conditions 111

4.1 General

5 Platform attitudes 112

5.1 General

6 Electromagnetic compatibility 112

6.1 General

7 Peace time shock 112

7.1 Definition

Section 4 Main Design Principles and Documentation to be Submitted

1 General design principles 113

1.1

2 Documentation to be submitted for all ships 113

2.1 Ships surveyed by the Society during the construction2.2 Ships for which the Society acts on behalf of the relevant Administration

3 Further documentation to be submitted for ships with additional class notations 114

3.1 General3.2 Additional class notations


PART B, CHAPTER 2STABILITY

Section 1 General1 Definitions 116

1.1 Definitions

2 General 116

2.1 Application

3 Definitions 116

3.1 Reference situation3.2 Surface situation3.3 Submerged displacement3.4 Surface displacement3.5 Geneva displacement 3.6 Form displacement3.7 Zero trim3.8 Surface draught3.9 Weighing test at the surface and submerged3.10 Inclining test at the surface and submerged3.11 Weighing3.12 Permanent ballast3.13 Submerged stability module3.14 Surface stability module

4 Examination procedure 117

4.1 Documents to be submitted4.2 Inclining test - Weighing test

5 Draught marks 118

5.1

Section 2 Intact Stability1 General 119

1.1 Information for the Captain1.2 Permanent ballast

2 Submerged intact stability 119

2.1 General submerged intact stability criteria

3 Surface intact stability 119

3.1 General surface intact stability criteria3.2 Severe wind and rolling criteria3.3 Icing

4 Effect of free surfaces of liquids in tanks 123

4.1 General4.2 Consideration of free surface effects4.3 Categories of tanks4.4 GM0 and GZ curve corrections4.5 Remainder of liquid


5 Diving and resurfacing phases 123

5.1

Section 3 Damage Stability

1 General 124

1.1 On board supports1.2 Damage control

2 Conditions and criteria for surface damaged stability 124

2.1 General2.2 Damage and criteria

Section 4 Weight Control

1 General 127

1.1

2 Diving 127

2.1 Water ballast tanks

3 Weighing and platform attitudes 127

3.1 Weighing devices3.2 Trim and heel devices

Appendix 1 Inclining and Weighing Test

1 Inclining and weighing test 128

1.1 General

Appendix 2 Weighing, Trim and Stability Booklet

1 Weighing, trim and stability booklet 132

1.1 Information to be included in the weighing, trim and stability booklet1.2 Loading conditions1.3 Stability curve calculation

Appendix 3 Evaluation of the Heeling Moment due to Athwart Wind

1 Evaluation of the heeling moment due to athwart wind 134

1.1 Intact stability1.2 Damage stability


PART C PRESSURE HULL AND STRUCTURES

PART C, CHAPTER 1STRUCTURE DESIGN PRINCIPLES

Section 1 Definitions1 Units 139

1.1

2 Definitions 139

2.1 General2.2 Depth2.3 Categories of structures2.4 Components of the pressure hull 2.5 Other definitions

3 Documentation to be submitted 141

3.1 General

Section 2 Materials1 General 142

1.1 Scope1.2 Materials properties

2 Steel grade for pressure hull and resisting structures except cofferdam 142

2.1 General2.2 Toughness requirements

3 Steel grade for cofferdam and exostructures 142


4 Steel grade for internal non-resisting structures 142


5 Other metallic materials 143

5.1 General5.2 Aluminium alloys

6 Non-metallic materials 143

6.1 Composites6.2 Other materials

Section 3 Loads1 General 144

1.1 Principles 1.2 Application of loads


2 Basic loads 144

2.1 Sea pressure2.2 Internal pressure2.3 Equipment2.4 Other loads

Section 4 Painting and Protection against Corrosion

1 General 146

1.1 Application1.2 General principles

2 Design of corrosion protection systems 146

2.1 General2.2 Galvanic anode2.3 Painting and coating


PART C, CHAPTER 2PRESSURE HULL

Section 1 Scantling of Pressure Hull

1 General 149

1.1 Application and definitions1.2 Principles of scantling examination

2 Design and scantling principles 149

2.1 Loads2.2 Structure attached to pressure hull2.3 Construction tolerances

3 Calculation 150

3.1 Principles3.2 Frame3.3 Dished ends3.4 Main bulkheads and cofferdams3.5 Deep frames 3.6 Connecting parts3.7 Checking criteria

Section 2 Hull Integrity and Penetration

1 General 153

1.1 Application

2 Hatch covers 153

2.1

3 Hull penetration 153

3.1 Definition3.2 General principles3.3 Integrated hull penetration3.4 Non Integrated hull penetration

Appendix 1 Scantling of Externally Pressurized Vessel

1 General 154

1.1 Application1.2 Definition of frame characteristics1.3 Length between support

2 Cylindrical shells 157

2.1 Stress calculation2.2 Buckling

3 Conical shell 159

3.1 Application3.2 Calculation


4 Dished ends 160

4.1 Application4.2 Calculation

5 Shape deviation measurement 160

5.1 Definition5.2 Measurement


PART C, CHAPTER 3RESISTING STRUCTURES

Section 1 General

1 Definition and classification principles 165

1.1 Application1.2 Review principles

2 Design principles 165

2.1 Loads2.2 Resisting structures connected to pressure hull2.3 General design features

3 Scantling calculation 165

3.1 Checking criteria

Section 2 Typical Resisting Structures

1 Weapon launching tube 166

1.1 Application1.2 Design principles

2 Capacities 166

2.1 Internal capacities2.2 External capacities

3 Collective rescue platform 167

3.1 Application3.2 Loads and applicable Rules


PART C, CHAPTER 4EXOSTRUCTURE

Section 1 General

1 Application and classification principles 171

1.1 Application1.2 Review principles

2 Design principles 171

2.1 General design features2.2 Exostructure attached to pressure hull2.3 Loads

3 Scantling calculation 171

3.1 Checking criteria

Section 2 Typical Exostructures

1 Typical exostructures 172

1.1 Bridge fin1.2 Fore end1.3 Aft end1.4 Exposed deck

2 Typical exostructure equipment 172

2.1 Ballast2.2 Mooring, towing and anchoring equipment


PART C, CHAPTER 5NON-RESISTING STRUCTURES

Section 1 Deck and Suspended Deck

1 Application 175

1.1 Application1.2 Scope of classification

2 Loads and design principles 175

2.1 Loads2.2 Design principles

3 Checking criteria 175

3.1 Principles3.2 Safety factors

Section 2 Seating

1 General principles 176

1.1 Application1.2 Loads1.3 Design principles

2 Scantling of seating 176

2.1 Yielding2.2 Seating of engine

Section 3 Other Non-Resisting Structures

1 General 177


2 Tanks 177

2.1 Application2.2 Loads and scantling criteria

3 Secondary bulkheads 177



PART C, CHAPTER 6HULL OUTFITTINGS

Section 1 Steering and Trimming Devices

1 General 181

1.1 Application1.2 Definitions1.3 Materials1.4 Amplitude1.5 Arrangement

2 Loads 181

2.1 Design load cases2.2 Calculation of loads

3 Criteria 182

3.1 General3.2 Wave and green seas loads3.3 Steering and diving loads3.4 Bearing pressure3.5 Tiller

Section 2 Anchoring, Mooring and Towing Arrangement

1 General 183

1.1 Application

2 Anchoring 183

2.1 General

3 Mooring and towing 183

3.1 General3.2 Loads3.3 Calculation

Section 3 Doors and Hatch Covers

1 General 184


2 Calculation 184

2.1 Loads2.2 Checking criteria


PART C, CHAPTER 7CONSTRUCTION AND TESTING

Section 1 Forming

1 Cold forming 187

1.1 General1.2 Cold forming procedure1.3 Strain ageing tests

2 Hot forming 187

2.1 General2.2 Hot forming procedure

Section 2 Welding and Weld Connections

1 General 188

1.1 Scope1.2 Documentation1.3 Traceability

2 Welding consumables, welding procedures and welders 188

2.1 Welding consumables2.2 Welding procedures2.3 Welders

3 Types of connections and preparations 189

3.1 General3.2 Distance between welds3.3 Butt weld assembly3.4 Partial and full penetration fillet welds3.5 Fillet welds

4 Fabrication by welding 189

4.1 Welding procedures and consumables4.2 Welding operations4.3 Repairs

5 Inspections and checks 191

5.1 General5.2 General requirements for Non-Destructive Testing (NDT)5.3 NDT procedures5.4 NDT categories5.5 Extent of NDT5.6 Visual examination5.7 Liquid penetrant and magnetic particle examinations5.8 Ultrasonic examination5.9 Radiographic examination5.10 Acceptance level of indications5.11 Repairs of unacceptable indications


Section 3 Testing

1 General 194

1.1 Application1.2 Principles

2 Testing of the pressure hull 194

2.1 General2.2 Testing conditions

3 Testing of other structural components 194

3.1 Definition3.2 Structural testing3.3 Leak testing3.4 Proof testings

Appendix 1 Approval of Steel Welding Procedures

1 General 196

1.1 Scope1.2 Welding procedure

2 Welding procedure qualification tests 197

2.1 Butt joints in plates with full penetration2.2 T butt joints in plates2.3 Fillet weld on plates2.4 Butt joint in pipes with full penetration2.5 Branch connection in pipes2.6 Re-testing2.7 Range of approval

3 Approval of stud welding 208

3.1 General


PART D SYSTEMS

PART D, CHAPTER 1GENERAL REQUIREMENTS

Section 1 General Requirements

1 General 213

1.1 Application1.2 Additional requirements 1.3 Documentation to be submitted


PART D, CHAPTER 2PROPULSION

Section 1 Propellers1 General 217

1.1 Application1.2 Definitions1.3 Documentation to be submitted

2 Design and construction 219

2.1 Materials2.2 Solid propellers2.3 Built-up propellers2.4 Skewed propellers2.5 Ducted propellers2.6 Features

3 Arrangement and installation 222

3.1 Fitting of propeller on the propeller shaft

4 Testing and certification 224

4.1 Material tests4.2 Testing and inspection4.3 Certification

Section 2 Main Propulsion Shafting1 General 225

1.1 Application 1.2 Documentation to be submitted


2.1 Materials2.2 Shafts - Scantling2.3 Liners2.4 Aft bearings2.5 Thrust bearing2.6 Sealing glands2.7 Couplings2.8 Monitoring


3.1 General3.2 Protection of propeller shaft against corrosion3.3 Shaft alignment3.4 Propeller shaft arrangement against sea water penetration

4 Shaft vibrations 231

4.1 General4.2 Design of systems in respect of vibrations4.3 Torsional vibrations4.4 Bending vibrations4.5 Axial vibrations


5 Material tests, workshop inspection and testing, certification 237

5.1 Material and non-destructive tests, workshop inspections and testing5.2 Certification


PART D, CHAPTER 3MACHINERY AND STEERING



1.1 General 1.2 Materials, welding and testing1.3 Vibrations 1.4 Operation in inclined position 1.5 Power of machinery 1.6 Astern power 1.7 Safety devices 1.8 Fuels

2 Arrangement and installation on board 242

2.1 General 2.2 Floors 2.3 Bolting down 2.4 Safety devices on moving parts 2.5 Gauges 2.6 Ventilation in machinery spaces 2.7 Hot surfaces and fire protection

3 Tests and trials 243

3.1 Works tests 3.2 Trials on board

Section 2 Diesel Engines and Related Compressors

1 General 244

1.1 Application 1.2 Documentation to be submitted 1.3 Definitions


2.1 Materials and welding2.2 Crankshaft2.3 Crankcase 2.4 Systems2.5 Starting air system 2.6 Control and monitoring


3.1 Starting arrangements3.2 Turning gear3.3 Fittings on decompression valves 3.4 Trays 3.5 Exhaust gas system


4 Type tests, material tests, workshop inspection and testing, certification 250

4.1 Type tests - General4.2 Type tests of engines not admitted to an alternative inspection scheme 4.3 Type tests of mass produced engines admitted to an alternative inspection

scheme4.4 Material and non-destructive tests4.5 Workshop inspections and testing4.6 Certification

5 Air inlet compressing devices 256

5.1 General5.2 Design and construction5.3 Arrangement and installation5.4 Type tests, material tests, workshop inspection and testing, certification

Section 3 Pressure Equipment

1 General 259

1.1 Principles 1.2 Application1.3 Definitions1.4 Classes1.5 Applicable Rules 1.6 Documentation to be submitted

2 Material test, workshop inspection and testing, certification 262

2.1 Material testing2.2 Workshop inspections2.3 Hydrostatic tests2.4 Certification

Section 4 Masts

1 General 265

1.1 Application1.2 Definitions

2 Design and arrangements for masts 265

2.1 Masts2.2 Mast associated piping

3 Control and monitoring 265

3.1 Command system

Section 5 Piping Systems

1 General 266

1.1 Application1.2 Documentation to be submitted1.3 Definitions1.4 Symbols and units1.5 Class of piping systems


2 General requirements for design and construction 268

2.1 Materials2.2 Thickness of pressure piping2.3 Calculation of high temperature pipes2.4 Junction of pipes2.5 Protection against overpressure2.6 Flexible hoses and expansion joints2.7 Valves and accessories2.8 Control and monitoring

3 Welding of steel piping 280

3.1 Application3.2 General3.3 Design of welded joints3.4 Preparation of elements to be welded and execution of welding3.5 Post-weld heat treatment3.6 Inspection of welded joints

4 Bending of pipes 283

4.1 Application4.2 Bending process4.3 Heat treatment after bending

5 Arrangement and installation of piping systems 283

5.1 General5.2 Location of tanks and piping system components5.3 Passage through watertight bulkheads or decks5.4 Independence of lines5.5 Provision for expansion5.6 Supporting of the pipes5.7 Protection of pipes5.8 Valves, accessories and fittings5.9 Additional arrangements for flammable fluids

6 Piping systems likely to withstand immersion pressure 286

6.1 Application6.2 Definitions6.3 Design6.4 Arrangement 6.5 Control and monitoring

7 Ballast systems (vent valves and normal blowing systems) 289

7.1 Design of vent valve systems7.2 Design of normal blowing system7.3 Arrangement of vent valves7.4 Arrangement of normal blowing system

8 Bilge systems 290

8.1 Principle8.2 Design of bilge systems8.3 Bilge pumps8.4 Bilge accessories8.5 Bilge piping arrangement8.6 Control and monitoring


9 Regulating and trim tank piping system 2929.1 Application9.2 Definition9.3 Design of tank piping system 9.4 Control and monitoring

10 Hydraulic systems 29310.1 Application10.2 General10.3 General10.4 Design of hydraulic pumps and accessories10.5 Design of hydraulic tanks and other components10.6 Control and monitoring

11 Compressed air systems 29511.1 Definitions11.2 Principle11.3 Design of storage capacity11.4 Design of air compressors11.5 Arrangement of compressed air piping systems 11.6 Control and monitoring of compressed air systems

12 Cooling systems 29612.1 Application12.2 Principle12.3 Design of sea water cooling systems12.4 Design of fresh water cooling systems12.5 Arrangement of cooling systems12.6 Control and monitoring

13 Ventilation system 29713.1 Definitions13.2 General design13.3 Arrangement

14 Air inlet system 29814.1 Application14.2 Definitions14.3 Design and arrangement of air inlet system14.4 Control and monitoring

15 Exhaust gas systems 29915.1 General 15.2 Design and arrangement of exhaust systems15.3 Materials15.4 Control and monitoring

16 Fuel oil systems 30016.1 Application16.2 Principle16.3 General16.4 Design of fuel oil filling and transfer systems16.5 Arrangement of fuel oil tanks and bunkers16.6 Design of fuel oil tanks and bunkers16.7 Design of fuel oil treatment systems16.8 Design of fuel supply systems16.9 Construction of fuel oil piping systems not likely to withstand immersion

pressure16.10 Control and monitoring


17 Lubricating oil systems 303

17.1 Application17.2 Principle17.3 General17.4 Design of engine lubricating oil systems17.5 Design of lubricating oil tanks17.6 Construction of lubricating oil piping systems

18 Air, sounding and overflow pipes of capacities located inside pressure hull 304

18.1 Air pipes18.2 Sounding pipes18.3 Overflow pipes18.4 Constructional requirements applying to sounding, air and overflow pipes

19 Certification, inspection and testing of piping systems 305

19.1 Application19.2 Type tests19.3 Testing of materials19.4 Hydrostatic testing of piping systems and their components19.5 Testing of piping system components during manufacturing19.6 Inspection and testing of piping systems

Section 6 Refrigerating Installations

1 General 309

1.1 Application

2 Minimum design requirements 309

2.1 Refrigerating installation components2.2 Refrigerants

Section 7 Steering Gear

1 General 311

1.1 Application1.2 Documentation to be submitted1.3 Definitions

2 Availability 312

2.1 General requirements for any type of steering gear configuration2.2 Requirements for specific rudder configurations


3.1 Performance of steering gears 3.2 Mechanical components3.3 Hydraulic system3.4 Alarms and indications


4.1 Steering gear arrangement4.2 Rudder actuator installation4.3 Overload protections


5 Certification, inspection and testing 314

5.1 Testing of materials5.2 Inspection and tests during manufacturing5.3 Inspection and tests after completion

Appendix 1 Plastic Pipes

1 General 315

1.1 Application1.2 Use of plastic pipes1.3 Definitions

2 Design of plastic piping systems 315

2.1 General2.2 Strength2.3 Requirements depending on service and/or location2.4 Pipe and fitting connections

3 Arrangement and installation of plastic pipes 317

3.1 General3.2 Supporting of the pipes3.3 Provision for expansion3.4 External loads3.5 Earthing3.6 Penetration of fire divisions and watertight bulkheads or decks3.7 Application of fire protection coatings

4 Certification, inspection and testing of plastic piping 318

4.1 Certification4.2 Workshop tests4.3 Testing after installation on board

Appendix 2 Check of the Scantlings of Crankshafts for Diesel Engines

1 General 320

1.1 Application1.2 Documentation to be submitted1.3 Principles of calculation1.4 Symbols

2 Calculation of alternating stresses 322

2.1 Calculation of alternating stresses due to bending moments and shearing forces2.2 Calculation of alternating torsional stresses

3 Calculation of stress concentration factors 326

3.1 General

4 Additional bending stresses 328

4.1

5 Calculation of the equivalent alternating stress 328

5.1 General5.2 Equivalent alternating stresses


6 Calculation of the fatigue strength 328

6.1

7 Calculation of shrink-fit of semi-built crankshafts 329

7.1 General7.2 Minimum required oversize of shrink-fit7.3 Maximum permissible oversize of shrink-fit

8 Acceptability criteria 329

8.1

Appendix 3 Requirements for Design of Pressure Vessels

1 Design and construction - Scantlings of pressure parts 330

1.1 General1.2 Materials1.3 Permissible stresses1.4 Cylindrical, spherical and conical shells with circular cross-sections subject to

internal pressure1.5 Dished heads subject to pressure on the concave (internal) side1.6 Dished heads subject to pressure on the convex (external) side1.7 Flat heads1.8 Openings and branches (nozzles)1.9 Regular pattern openings - Tube holes1.10 Water tubes, superheaters and economiser tubes of boilers1.11 Additional requirements for fired pressure vessels1.12 Additional requirements for vertical boilers and fire tube boilers1.13 Bottles containing pressurised gases1.14 Heat exchangers

2 Design and construction - Equipment 351

2.1 All pressure vessels2.2 Boilers and steam generators2.3 Special types of pressure vessels2.4 Other pressure vessels

3 Design and construction - Fabrication and welding 355

3.1 General 3.2 Welding design3.3 Miscellaneous requirements for fabrication and welding3.4 Preparation of parts to be welded3.5 Tolerances after construction3.6 Preheating3.7 Post-weld heat treatment3.8 Welding samples3.9 Specific requirements for class 1 vessels3.10 Specific requirements for class 2 vessels3.11 Specific requirements for class 3 vessels

4 Design and construction - Control and monitoring 367

4.1 Boiler control and monitoring system4.2 Pressure vessel instrumentation4.3 Control and monitoring requirements



5.1 Foundations5.2 Boilers5.3 Pressure vessels


PART D, CHAPTER 4POWER SUPPLY

Section 1 General

1 Application 373

1.1 General1.2 References to other regulations and standards

2 Documentation to be submitted 373

2.1

3 Definitions 374

3.1 General3.2 Essential services3.3 Safety voltage3.4 Low-voltage systems3.5 High-voltage systems3.6 Basic insulation3.7 Supplementary insulation3.8 Double insulation3.9 Reinforced insulation3.10 Earthing3.11 Normal operational and habitable condition3.12 Emergency condition3.13 DG3.14 AIP3.15 Main source of electrical power3.16 Main switchboard3.17 Section boards3.18 Distribution board3.19 Circuit3.20 Hazardous areas3.21 Certified safe-type equipment3.22 Environmental categories

Section 2 General Design Requirements

1 Environmental conditions 377

1.1 General1.2 Salt mist

2 Quality of power supply 377

2.1 General2.2 a.c. distribution systems2.3 d.c. distribution systems2.4 Harmonic distortions

3 Electromagnetic susceptibility 378

3.1


4 Materials 378

4.1 General4.2 Insulating materials for windings4.3 Insulating materials for cables

5 Construction 378

5.1 General5.2 Degree of protection of enclosures

6 Protection against explosion hazard 378

6.1 Protection against explosive gas or vapour atmosphere hazard

Section 3 System Design

1 Supply systems and characteristics of the supply 380

1.1 Supply systems1.2 Maximum voltages

2 Sources of electrical power 380

2.1 General2.2 Main sources

3 Distribution 381

3.1 Insulated distribution systems3.2 Main distribution of electrical power3.3 Shore supply3.4 Supply of motors3.5 Specific requirements for special power services3.6 Power supply to heaters3.7 Power supply to lighting installations3.8 Special lighting services3.9 Navigation lights3.10 Public address system3.11 Combined general emergency alarm-public address system3.12 Control and indication circuits

4 Degrees of protection of the enclosures 383

4.1 General

5 Diversity (demand) factors 384

5.1 General

6 Electrical protection 384

6.1 General requirements for overcurrent protection6.2 Short-circuit currents6.3 Selection of equipment6.4 Protection against short-circuit6.5 Protection against overload6.6 Localisation of overcurrent protection6.7 Protection of alternators rectifiers6.8 Protection of circuits6.9 Protection of motors6.10 Protection of storage batteries6.11 Protection of shore power connection6.12 Protection of measuring instruments, pilot lamps and control circuits6.13 Protection of transformers


7 System components 387

7.1 General

8 Electrical cables 387

8.1 General8.2 Choice of insulation8.3 Choice of protective covering8.4 Cables in refrigerated spaces8.5 Cables in areas with a risk of explosion8.6 Cables in circuits required to be operable under fire condition8.7 Cables for external application8.8 Internal wiring of switchboards and other enclosures for equipment8.9 Current carrying capacity of cables8.10 Minimum nominal cross-sectional area of conductors8.11 Choice of cables

9 Electrical installations in hazardous areas 392

9.1 Electrical equipment9.2 Electrical cables9.3 Electrical installations in battery compartments

Section 4 Rotating Machines

1 Constructional and operational requirements for generators and motors 394

1.1 Mechanical construction1.2 Sliprings, commutators and brushes1.3 Terminal connectors1.4 Electrical insulation

2 Special requirements for generators 394

2.1 Prime movers, speed governors and overspeed protection2.2 A.c. generators

3 Testing of rotating machines 395

3.1 General3.2 Shaft material3.3 Tests

4 Description of test 396

4.1 Technical documentation and visual inspection4.2 Insulation resistance measurement4.3 Winding resistance measurement4.4 Verification of the a.c. voltage regulation4.5 Verification of the d.c. voltage regulation4.6 Rated load test and temperature rise measurements4.7 Overload/ overcurrent test4.8 Verification of the steady short circuit current4.9 Overspeed test4.10 Dielectric strength test4.11 No load test4.12 Verification of degree of protection4.13 Verification of bearings


Section 5 Transformers

1 Constructional and operational requirements 399

1.1 Construction1.2 Terminals1.3 Voltage variation, short-circuit conditions and parallel operation1.4 Electrical insulation and temperature rise1.5 Insulation tests

2 Testing 400

2.1 General2.2 Tests on transformers

Section 6 Semiconductor Convertors

1 Constructional and operational requirements 401

1.1 Construction1.2 Protection1.3 Parallel operation with other power sources1.4 Temperature rise1.5 Insulation test

2 Testing 402

2.1 General2.2 Tests on convertors

Section 7 Storage Batteries and Chargers

1 Constructional requirements for batteries 403

1.1 General1.2 Vented batteries1.3 Valve-regulated sealed batteries1.4 Tests on batteries

2 Constructional requirements for chargers 403

2.1 Characteristics2.2 Tests on chargers

Section 8 Switch Gear and Control Gear Assemblies

1 Constructional requirements for main switchboards 405

1.1 Construction1.2 Bus bars and bare conductors1.3 Internal wiring1.4 Switch gear and control gear1.5 Auxiliary circuits1.6 Instruments

2 Constructional requirements for section boards and distribution boards 407

2.1 Construction


3 Testing 407

3.1 General3.2 Inspection of equipment, check of wiring and electrical operation test3.3 High voltage test3.4 Measurement of insulation resistance

Section 9 Cables

1 Constructional requirements 409

1.1 Construction1.2 Conductors1.3 Insulating materials1.4 Inner covering, fillers and binders1.5 Protective coverings (armour and sheath)1.6 Identification

2 Testing 410

2.1 Type tests2.2 Routine tests

Section 10 Miscellaneous Equipment

1 Switch gear and control gear, protective devices 411

1.1 General1.2 Circuit-breakers1.3 Protection devices

2 Lighting fittings 411

2.1 Applicable requirements2.2 Construction

3 Accessories 411

3.1 Applicable requirements3.2 Construction

4 Plug-and-socket connections 412

4.1 Applicable requirements

5 Heating and cooking appliances 412

5.1 Applicable requirements5.2 General5.3 Space heaters5.4 Cooking appliances5.5 Fuel oil and lube oil heaters5.6 Water heaters

Section 11 Location

1 General 413

1.1 Location1.2 Areas with a risk of explosion


2 Main electrical system 413

2.1 Main battery switchboard2.2 Main battery

3 Distribution boards 413

3.1 Distribution board for navigation lights

4 Cable runs 413

4.1 General4.2 Location of cables in relation to the risk of fire and overheating4.3 Location of cables in relation to electromagnetic interference4.4 Services with a duplicate feeder

5 Storage batteries 414

5.1 General5.2 Main battery room5.3 Large vented batteries5.4 Moderate vented batteries5.5 Small vented batteries5.6 Ventilation

Section 12 Installation1 General 416

1.1 Protection against injury or damage caused by electrical equipment1.2 Protection against damage to electrical equipment1.3 Accessibility

2 Earthing of non-current carrying parts on a.c. installations 416

2.1 Parts which are to be earthed2.2 Methods of earthing2.3 Earthing connections2.4 Connection to the submarine structure2.5 Earthed distribution systems

3 Rotating machines 417

3.1

4 Semiconductor convertors 417

4.1 Semiconductor power convertors

5 Vented type storage batteries 418

5.1 General5.2 Protection against corrosion5.3 Battery connection

6 Switch gear and control gear assemblies 418

6.1 Main switchboard6.2 Section boards and distribution boards

7 Cables 418

7.1 General7.2 Radius of bend7.3 Fixing of cables7.4 Mechanical protection7.5 Penetrations of bulkheads and decks7.6 Expansion joints


7.7 Cables in closed pipes or conduits7.8 Cables in casings or trunking and conduits with removable covers7.9 Cable ends7.10 Joints and tappings (branch circuit)7.11 Earthing and continuity of metal coverings of cables7.12 Earthing and continuity of metal pipes, conduits and trunking or casings7.13 Precautions for single-core cables for a.c.7.14 Cables in refrigerated spaces7.15 Cables in areas with a risk of explosion7.16 Cables and apparatus for services required to be operable under fire conditions7.17 Cables in the vicinity of radio equipment7.18 Cable trays/protective casings made of plastics materials

8 Various appliances 424

8.1 Lighting fittings8.2 Heating appliances8.3 Heating cables and tapes or other heating elements

Section 13 Electric Propulsion Plant1 General 425

1.1 Applicable requirements1.2 Operating conditions

2 Design of the propulsion plant 425

2.1 General2.2 Power supply2.3 Auxiliary machinery2.4 Electrical protection2.5 Adjustable excitation for propulsion motor

3 Construction of rotating machines 426

3.1 Ventilation3.2 Protection against moisture and condensate3.3 Rotating machines


4.1 General4.2 Power plant control systems4.3 Indicating instruments 4.4 Alarm system4.5 Reduction of power

5 Installation 430

5.1 Ventilation of spaces5.2 Cable runs

6 Tests 430

6.1 Test of rotating machines

Section 14 Testing1 General 431

1.1 Rule application1.2 Insulation-testing instruments


2 Type approved components 431

2.1

3 Insulation resistance 431

3.1 Lighting and power circuits3.2 Internal communication circuits3.3 Switchboards3.4 Generators and motors

4 Earth 432

4.1 Electrical constructions4.2 Metal-sheathed cables, metal pipes or conduits

5 Operational tests 432

5.1 Generating sets and their protective devices5.2 Main electrical batteries5.3 Switchgear5.4 Consuming devices5.5 Communication systems5.6 Installations in areas with a risk of explosion5.7 Voltage drop5.8 Electrical pressure hull penetration

Appendix 1 Indirect Test Method for Synchronous Machines

1 General 434

1.1 Test method


PART D, CHAPTER 5AUTOMATION


1 General 439

1.1 Field of application1.2 Regulations and standards1.3 Definitions1.4 General

2 Documentation 440

2.1 General2.2 Documents to be submitted2.3 Documents for computer based system2.4 Documents for type approval of equipment

3 Environmental and supply conditions 441

3.1 General3.2 Power supply conditions

4 Materials and construction 442

4.1 General4.2 Type approved components

Section 2 Design Requirements

1 General 443

1.1

2 Power supply of automation systems 443

2.1 General

3 Control systems 443

3.1 General3.2 Local control3.3 Remote control systems3.4 Automatic control systems

4 Control of propulsion machinery 444

4.1 Remote control 4.2 Remote control from control platform4.3 Automatic control of propulsion and manoeuvring units

5 Remote control of valves 444

5.1 5.2 Control of pressure hull valves

6 Alarm system 444

6.1 General requirements6.2 Alarm functions


7 Safety system 445

7.1 Design7.2 Standby systems7.3 Testing

Section 3 Computer Based Systems1 General requirements 446

1.1 General1.2 System type approval1.3 System operation1.4 System reliability1.5 System failure 1.6 System redundancy

2 Hardware 446

2.1 General2.2 Housing

3 Software 446

3.1 General3.2 Software development quality

4 Data transmission link 447

4.1 General4.2 Hardware support4.3 Transmission software 4.4 Transmission operation4.5 Redundant network

5 Man-machine interface 447

5.1 System functional indication5.2 Input devices5.3 Output devices5.4 Workstations5.5 Computer dialogue

6 Integrated systems 448

6.1 General

7 Expert system 448

7.1

8 System testing 448

8.1

9 System maintenance 448

9.1

Section 4 Constructional Requirements1 General 449

1.1 General1.2 Materials1.3 Component design1.4 Environmental and supply conditions


2 Electrical and/or electronic systems 449

2.1 General2.2 Electronic system2.3 Electrical system

3 Pneumatic systems 450

3.1

4 Hydraulic systems 450

4.1

5 Automation consoles 450

5.1 General5.2 Indicating instruments5.3 VDU’s and keyboards

Section 5 Installation Requirements

1 General 451

1.1

2 Sensors and components 451

2.1 General2.2 Temperature elements2.3 Level switches

3 Cables 451

3.1 Installation3.2 Cable terminations

4 Pipes 452

4.1

5 Automation consoles 452

5.1 General

Section 6 Testing

1 General 453

1.1 General

2 Type approval 453

2.1 General2.2 Hardware type approval2.3 Software type approval

3 Acceptance testing 458

3.1 General3.2 Hardware testing3.3 Software testing

4 On board tests 458

4.1 General


PART D, CHAPTER 6COMMUNICATION AND NAVIGATING

Section 1 Communication System1 General 461

1.1 Application

2 Documentation 461

2.1 Documents to be submitted

3 Design requirements 461

3.1 General3.2 internal communication3.3 Surface communication

4 Testing 461

4.1 Product approval

Section 2 Navigating and Locating Equipment1 General 462

1.1 Application1.2 Operational assumptions1.3 Regulations, guidelines, standards1.4 Definitions

2 Documentation 463

2.1 Documents to be submitted

3 Control room instrumentation and controls 463

3.1 General3.2 Safety of navigation: collision-grounding3.3 Surface navigation3.4 Depth navigation

4 Design and reliability 464

4.1 General4.2 Power supply4.3 Environmental conditions

5 Ergonomical recommendations 464

5.1 Lighting5.2 Control room space heating/cooling5.3 Personnel’s safety

6 Testing 465

6.1 Tests

Section 3 Signalisation1 General 466

1.1 Application


PART E FIRE SAFETY AND HUMAN OCCUPANCY

PART E, CHAPTER 1FIRE PROTECTION

Section 1 General

1 Application 471

1.1 General1.2 Exemptions1.3 Documentation to be submitted 1.4 Type approved products

2 Definitions 472

2.1 Accommodation spaces2.2 A class divisions2.3 C class divisions2.4 Control stations2.5 Fire Safety Systems Code2.6 Fire Test Procedures Code2.7 Flashpoint2.8 Galley2.9 Low flame spread2.10 Machinery spaces2.11 Machinery spaces category A2.12 Non-combustible material2.13 Pantries2.14 Public spaces2.15 Service spaces2.16 Steel or other equivalent material2.17 Standard fire test2.18 Weapon room

Section 2 Prevention of Fire

1 Probability of ignition 475

1.1 Arrangements for fuel oil, lubrication oil and other flammable oils 1.2 Use of gaseous fuel for domestic purpose1.3 Miscellaneous items of ignition sources and ignitability

2 Fire growth potential 475

2.1 Control of air supply and flammable liquid to the space2.2 Fire protection materials

3 Smoke generation potential and toxicity 476

3.1 Paints and other finishes

4 Prevention of explosion 476

4.1 Weapon rooms4.2 Main Batteries


Section 3 Suppression of Fire: Detection and Alarm

1 General 477

1.1 Minimum number of detectors

2 Initial and periodical tests 477

2.1 General

3 Protection of machinery spaces 477

3.1 Installation 3.2 Design

4 Protection of accommodation, service spaces and control stations 477

4.1 General4.2 Protection of the galley

5 Protection of weapon rooms 477

5.1 Smoke detection

6 Protection of battery space 477

6.1 Smoke detection

7 Fixed fire detection and fire alarm systems design 478

7.1 Engineering specifications

Section 4 Suppression of Fire: Control of Smoke Spread

1 Protection of control stations 480

1.1 General

2 Release of smoke after fire 480

2.1 General2.2 Means of control

Section 5 Suppression of Fire: Containment of Fire

1 Thermal and structural boundaries 481

1.1 Application1.2 Thermal and structural subdivision1.3 Definitions1.4 Protection from high-risk spaces1.5 Zones to be protected from fire risk

2 Penetration in fire-resisting divisions 481

2.1 Penetrations in A class divisions2.2 Pipes penetrating A class divisions

3 Protection of openings in fire-resisting divisions 482

3.1 Doors in fire-resisting divisions

4 Ventilation systems 482

4.1 Duct and dampers4.2 Arrangements of ducts4.3 Details of duct penetrations


Section 6 Suppression of Fire: Fire Fighting

1 General 484

1.1 Application

2 Fire-extinguishing arrangements in machinery spaces 484

2.1 Machinery spaces arrangement2.2 Diesel engine room2.3 Propulsion room2.4 Auxiliary machinery spaces

3 Fire-extinguishing arrangements in control stations, accommodation and service spaces 484

3.1 Arrangement of portable fire extinguishers

4 Fire-extinguishing arrangements in weapon room 485

4.1 Fixed fire-extinguishing system4.2 Arrangement of portable fire extinguishers

5 Fire-extinguishing arrangements in main battery compartments 485

5.1 Fixed fire-extinguishing system

6 Portable fire extinguishers 485

6.1 Type and design6.2 Engineering specifications

7 Fixed fire-extinguishing systems 485

7.1 Types of fixed fire-extinguishing systems7.2 Fixed gas fire-extinguishing systems7.3 Fixed water-mist fire-extinguishing system7.4 Water pumps for water-based fire-extinguishing systems

Section 7 Suppression of Fire: Structural Integrity

1 Material of hull, structural bulkheads and decks 488

1.1 General

2 Machinery spaces 488

2.1 Floor plating


PART E, CHAPTER 2ATMOSPHERE CONTROL

Section 1 Gas Monitoring

1 General 491

1.1 Principle1.2 Definitions

2 Breathing atmosphere control 491

2.1 General2.2 Monitoring devices

Section 2 Oxygen Production

1 Oxygen supply system 492

1.1 Definitions1.2 Main requirements

2 Oxygen containers 492

2.1 Main requirements

3 Oxygen candles 492


Section 3 Dangerous Gases Elimination

1 General 493

1.1 Definitions

2 Carbon dioxide elimination 493


3 Elimination of other dangerous gases 493


Section 4 Emergency Breathing Air Supply

1 Design 494



PART E, CHAPTER 3EMERGENCY AND RESCUE INSTALLATIONS

Section 1 Flooding Fighting

1 General 497

1.1 Application1.2 Principle

2 Sea water leakage detection 497

2.1 Design2.2 Arrangement2.3 Control and monitoring

3 Safety shut-off valve closing 497

3.1

Section 2 Emergency Blowing

1 General 498

1.1 Definition1.2 Application1.3 Peculiar point

2 Design 498

2.1 Emergency air bottles2.2 Emergency distributors

3 Arrangement 498

3.1 Piping3.2 Air capacity3.3 Effect of emergency blowing


4.1 Remote control system4.2 Monitoring

Section 3 Emergency Lightening

1 General 499

1.1 Introduction

2 Design 499

2.1 Piping and actuators2.2 Reliability

3 Arrangement 499

3.1 Droppable weight system


Section 4 Rescue Arrangements

1 General 500

1.1 Introduction1.2 Definitions

2 Alert and localization 500

2.1 Description2.2 Drifting buoy2.3 Ultrasonic beacon

3 Survival 500

3.1 General3.2 Atmosphere regeneration3.3 Ventilation from the outside3.4 Food emergency stock3.5 Medical supplies3.6 Means of communication

4 Escape or rescue 501

4.1 General4.2 Escape4.3 Rescue


PART F ADDITIONAL CLASS NOTATIONS

PART F, CHAPTER 1ADDITIONAL CLASS NOTATIONS

Section 1 REF-STORE Notation

1 General 507

1.1 Application1.2 Definitions

2 Design criteria 507

2.1 Reference conditions

3 Documentation 507

3.1 Refrigerating installations

4 General technical requirements 509

4.1 Refrigeration of chambers4.2 Refrigerating unit4.3 Defrosting4.4 Prime movers and sources of power4.5 Pumps4.6 Sea connections4.7 Refrigerating unit spaces

5 Refrigerated chambers 509

5.1 Construction of refrigerated chambers 5.2 Penetrations5.3 Access to refrigerated spaces5.4 Insulation of refrigerated chambers 5.5 Protection of insulation5.6 Miscellaneous requirements5.7 Installation of the insulation5.8 Drainage of refrigerated spaces

6 Refrigerants 511

6.1 General6.2 Rated working pressures

7 Refrigerating machinery and equipment 512

7.1 Prime movers7.2 Common requirements for compressors7.3 Reciprocating compressors7.4 Pressure vessels7.5 General requirements for piping7.6 Accessories7.7 Refrigerating plant overpressure protection

8 Specific requirements for direct refrigerating systems 513

8.1 Specific requirements for air cooling systems and distribution and renewal of air in refrigerated spaces


9 Instrumentation, alarm, monitoring 513

9.1 General9.2 Instrumentation, alarm and monitoring arrangement

10 Material tests, inspection and testing, certification 514

10.1 Material testing10.2 Shop tests10.3 Pressure tests at the workshop10.4 Thermometers and manometers10.5 Shipboard tests10.6 Defrosting system

Section 2 HSE Notation

1 General 516

1.1 Application

Section 3 AIP Notation

1 General 517

1.1 Definitions1.2 Safety demonstration1.3 Documents to be submitted

2 Safety study 518

2.1 Safety requirements

3 System requirements 520

3.1 Operating requirements3.2 Requirements on energy production3.3 Installation requirements3.4 Equipment and technologies requirements

4 Certification and testing 521

4.1 Equipment certification4.2 Quay and sea trials4.3 Feedback4.4 Maintenance of classification

Section 4 CollRES Notation

1 General 523

1.1 Application

2 Scenario to be investigated 523

2.1 Collision with a surface vessel2.2 Collision with the bottom

3 Acceptance criteria 523

3.1


Section 5 Anchoring Notation

1 General 524

1.1 Application1.2 Anchoring conditions1.3 Definition

2 Anchoring 524

2.1 General2.2 Mooring force2.3 Anchor2.4 Chain cable2.5 Windlass and chain stopper2.6 Chain locker

Section 6 Refuge Compartment

1 Refuge compartment 526

1.1 Definition1.2 Design and arrangement


RULES FOR THE CLASSIFICATION OF NAVAL SUBMARINES

Part AClassification and Surveys

Chapters 1 2 3 4

CHAPTER 1 PRINCIPLES OF CLASSIFICATION AND CLASS NOTATIONS

CHAPTER 2 ASSIGNMENT, MAINTENANCE AND WITHDRAWAL OF CLASS

CHAPTER 3 SCOPE OF SURVEYS

CHAPTER 4 SCOPE OF SURVEYS RELATED TO ADDITIONAL CLASS NOTATIONS

September 2016

Part AClassification and Surveys

Chapter 1

PRINCIPLES OF CLASSIFICATION AND CLASSNOTATIONS

SECTION 1 GENERAL PRINCIPLES OF CLASSIFICATION

SECTION 2 CLASSIFICATION NOTATIONS

APPENDIX 1 QUAY AND SEA TRIALS

APPENDIX 2 SAFETY FILE


Pt A, Ch 1, Sec 1

SECTION 1 GENERAL PRINCIPLES OF CLASSIFICATION

1 Principles of classification

1.1 Purpose of the Rules

1.1.1 The Rules published by the Society give the require-ments for the assignment and the maintenance of classifica-tion for seagoing naval conventional submarines.

Class assigned to a submarine reflects the discretionaryopinion of the Society that the submarine, for declared con-ditions of use and within the relevant time frame, complieswith the Rules applicable at the time the service is ren-dered. Class requirements can be temporarily suspendedunder emergency conditions (war, terrorist attack,...)declared by the Naval Authority.

Note 1: The general conditions of classification are laid down inthe Marine & Offshore Division General Conditions.

1.1.2 The application criteria of the different parts of thepresent Rules are as follows:

• Part A - Classification and Surveys: applies to all navalconventional submarines.

• Part B - Main Design Principles and Stability, Part C -Pressure Hull and Structures, Part D - Systems and PartE - Provisions related to Human Occupancy and FireSafety: apply to seagoing naval conventional subma-rines whose hull is of welded steel construction. Wherenecessary, the extent of application is more preciselydefined in each chapter of these parts of the Rules.

• Part F - Additional Class Notations: applies, at therequest of the Interested Party, to seagoing naval con-ventional submarines.

The classification of submarines other than those dealt within the above-mentioned Parts B, C, D, E and F is covered byspecific Rules published by the Society.

1.2 General definitions

1.2.1 The following general definitions are used in theseRules :

• Society means the Classification Society with which thesubmarine is classed

• Rules means the present Rules for the Classification ofNaval Submarines (NR535) and documents issued bythe Society serving the same purpose

• Surveyor means technical staff acting on behalf of theSociety to perform tasks in relation to classification andsurvey duties

• Survey means an intervention by the Surveyor forassignment or maintenance of class as defined in Part A,Chapter 2, or interventions by the Surveyor within thelimits of the tasks delegated by the Naval Authority

• Navy means the Governmental Body to whom the Stateor the Defence Department of the State has delegatedresponsibility for ownership of naval submarines. TheNavy is responsible for the requirement, procurementand through life support and maintenance of the navalsubmarine

• Naval Authority means the authority nominated by theNavy responsible for providing regulation associatedwith procurement and support of the submarine. TheNaval Authority may also be responsible for identifyingappropriate standards, auditing and classification. TheNaval Authority could be a Navy department, StatutoryAuthority or an independent organization with appro-priate standing

• Owner means the party having the responsibility tokeep the submarine seaworthy, having particular regardto the provisions relating to the maintenance of classlaid down in Part A, Chapter 2

• Design Authority means the party having the responsi-bility of the technical consistency and the submarinedesign and of having the design approved by the classi-fication society

• Shipbuilder means the party having the responsibility ofthe construction of the submarine and of her classifica-tion at the assignment phase

• Interested Party means a party, other than the Society,having responsibility for the classification of the subma-rine, such as the Owners of a submarine and his repre-sentatives, or the Shipbuilder, or the Design Authority orthe Engine Builder, or the Supplier of parts to be tested

• Approval means the review by the Society of docu-ments, procedures or other items related to classifica-tion, verifying solely their compliance with the relevantRules requirements, or other referentials whererequested

• Type approval means an approval process for verifyingcompliance with the Rules of a product, a group ofproducts or a system, and considered by the Society asrepresentative of continuous production

• Essential service is intended to mean a service having animpact on the safety of the submarine as defined in[1.3.1]. Their determination may also result from a spe-cific analysis as defined in Ch 1, App 2

• Essential safety services are those intended to the detector fight damages

• Submarine is intended to mean seagoing naval conven-tional submarines.


Pt A, Ch 1, Sec 1

1.2.2 Definition of date of “contract for construction”:

The date of “contract for construction” of a submarine is thedate on which the contract to build the submarine is signedbetween the Owner and the Shipbuilder. This date is nor-mally to be declared to the Society by the Interested Partyapplying for the assignment of class to a new submarine.

1.3 Meaning of classification, scope and limits

1.3.1 Levels of classification

Two levels of classification are considered:

a) Safety of the submarine intended to the prevention ofsinking and of human being casualties, to maintainingthe capacity of the submarine to return and keep to surface safely and, if not possible, at least to evacuate thecrew in safe conditions, covering the following items:

- pressure hull and related equipment

- main propulsion engine

- main batteries

- systems resisting to sea water pressure

- main ballasts including venting and blowing out sys-tems

- electrical equipment and installations

- steering and trimming

- communication and navigation

- fire protection, detection and extinction

- human occupancy

- stability

- emergency and rescue installations

- other systems the list of which is established oncase-by-case basis for each type of submarine.

b) Safety and operability of the submarine intended tocover the safety goals and the capability of surface orlow depth diving in safe navigation, including all theitems of safety plus the following items:

- auxiliary engines and related systems

- systems related to surface navigation other systemsthe list of which is established on case-by-case basisfor each type of submarine.

Specific requirements for different types of submarinesmay be added on case-by-case basis with the agreementof the Society according to the real conditions of utiliza-tion of the submarine and to the return of experience onthe actual behaviour of the different components andsystems.

1.3.2 Classification process

The classification process consists of:

• the development of Rules, guidance notes and otherdocuments relevant to the submarine, structure, mate-rial, equipment, machinery and other items covered bysuch documents

• the review of plans and calculations and the surveys,checks and tests intended to demonstrate that the sub-marine meets the Rules (refer to Ch 2, Sec 1)

• the assignment of class (see Ch 2, Sec 1) and issue of aCertificate of Classification, where compliance with theabove Rules is found

• the periodical, occasional and class renewal surveysperformed to record that the submarine in service meetsthe conditions for maintenance of class (see Ch 2, Sec2).

The Rules, surveys performed, reports, certificates and otherdocuments issued by the Society are in no way intended toreplace or alleviate the duties and responsibilities of otherparties such as the Navy, Naval Authority, Design Authority,Designers, Shipbuilders, Manufacturers, Repairers, Suppli-ers, Contractors or Sub-contractors, actual or prospectiveOwners or Operators, Charterers, Brokers and Underwriters.

The activities of such parties which fall outside the scope ofthe classification as set out in the Rules, such as design,engineering, manufacturing, operating alternatives, choiceof type and power of machinery and equipment, numberand qualification of crew or operating personnel, lines ofthe submarine, trim, hull vibrations, weapons and ammuni-tions, spare parts including their number, location and fas-tening arrangements, life-saving appliances, andmaintenance equipment, remain therefore the responsibilityof those parties, even if these matters may be given consid-eration for classification according to the type of submarineor additional class notation assigned.

1.3.3 Unless otherwise specified, the Rules do not dealwith structures, pressure vessels, machinery and equipmentwhich are not permanently installed and used solely foroperational activities such as heavy load lifting, workshopsor welding equipment, except for their effect on the classifi-cation-related matters, as declared by the Interested Party,such as fire protection, atmosphere control, diving safetyand submarine’s general strength.

During periods of construction, modification or repair, theunit is solely under the responsibility of the builder or therepair yard. As an example, the builder or repair yard is toensure that the construction, modification or repair activi-ties are compatible with the design strength of the subma-rine and that no permanent deformations are sustained.

Note 1: Refer to [3.3] as regards the Owner’s responsibility formaintenance and operation of the submarine in relation to themaintenance of class.


Pt A, Ch 1, Sec 1

1.3.4 The class assigned to a submarine by the Society fol-lowing its interventions is embodied in a Certificate of Clas-sification and noted in the Register.

At a certain date the class of a submarine is maintained orregular when no surveys are overdue, when the conditionsfor suspension of class are not met and when the class is notwithdrawn nor suspended. Otherwise the class is irregular.Attention is drawn on the fact that a submarine holding avalid Certificate of Classification may be in an irregularclass position.

1.4 Request for services

1.4.1 Requests for interventions by the Society, such as sur-veys during construction, surveys of submarines in service,tests, etc., are in principle to be submitted in writing andsigned by the Interested Party. Such request implies that theapplicant will abide by all the relevant requirements of theRules, including the Marine & Offshore Division GeneralConditions.

The Society reserves the right to refuse or withdraw the classof any submarine for which any applicable requirement ofthe Rules is not complied with.

1.5 Register

1.5.1 A Register is published periodically by the Society.This publication, which is updated by the Society, containsthe names of submarines which have received the Certifi-cate of Classification, as well as particulars of the classassigned and information concerning each submarine.

Referring to the additional notations, only these which pub-lication is authorized by the Owner are mentioned in theRegister.

2 Rules

2.1 Effective date

2.1.1 The effective date of entry into force of any amend-ments to the Rules is indicated on the inside front page ofthe Rules or in the relevant Section.

2.1.2 In principle, the applicable Rules for assignment ofclass to a new submarine are those in force at the date ofcontract for construction.

2.1.3 Special consideration may be given to applying newor modified rule requirements which entered into force sub-sequent to the date of contract for construction, at the dis-cretion of the Society and in the following cases:

• when a justified written request is received from theparty applying for classification

• when the first pressure hull subsection is not built andmore than one year has elapsed since the contract forconstruction was signed

• where it is intended to use existing previously approvedplans for a new contract.

2.1.4 The above procedures for application of the Rulesare, in principle, also applicable to existing submarines inthe case of major conversions and, in the case of altera-tions, to the altered parts of the submarine.

2.1.5 The rule requirements related to assignment, mainte-nance and withdrawal of the class of submarines already inoperation, as detailed in Part A, Chapter 2 to Part A, Chap-ter 4, are applicable from the date of their entry into force.

2.2 Equivalence

2.2.1 The Society may consider the acceptance of alterna-tives to these Rules, provided that they are deemed to beequivalent to the Rules to the satisfaction of the Society.

2.3 Novel features

2.3.1 The Society may consider the classification of subma-rines based on, or applying, novel design principles or fea-tures, to which the Rules are not directly applicable, on thebasis of experiments, calculations or other supporting infor-mation provided to the Society. Specific limitations maythen be indicated on the Certificate of Classification.

2.4 Disagreement and appeal

2.4.1 Any technical disagreement with the Surveyor in con-nection with the performance of his duties should be raisedby the Interested Party as soon as possible.

The Interested Party may appeal in writing to the Society,which will subsequently consider the matter and announceits decision according to its established procedure.

3 Duties of the Interested Parties

3.1 International and national regulations

3.1.1 The classification of a submarine does not relieve theInterested Party from compliance with any requirementsissued by the Naval Authority.

3.1.2 When authorised by the Naval Authority concerned,the Society will act on its behalf within the limits of suchauthorisation. In this respect, the Society will take intoaccount the relevant requirements, survey the submarine,report and issue or contribute to the issue of the corre-sponding certificates.

The above surveys do not fall within the scope of the classi-fication of submarines, even though their scope may over-lap in part and may be carried out concurrently withsurveys for assignment or maintenance of class.

3.1.3 In the case of a discrepancy between the provisionsof the applicable international and national regulations andthose of the Rules, normally, the former take precedence.However, the Society reserves the right to call for the neces-sary adaptation to preserve the intention of the Rules or toapply the provisions of [1.4.1].


Pt A, Ch 1, Sec 1

3.2 Surveyor’s intervention

3.2.1 Except for secrecy or operational restrictions, Survey-ors are to be given free access at all times to submarineswhich are classed or being classed, shipyards and works, tocarry out their interventions within the scope of assignmentor maintenance of class, or within the scope of interven-tions carried out on behalf of Naval Authority, when so del-egated.

3.2.2 Interested Parties are to take the necessary measuresfor the Surveyors’ inspections and testing to be carried outsafely. Interested Parties - irrespective of the nature of theservice provided by the Surveyors of the Society or othersacting on its behalf - assume with respect to such Surveyorsall the responsibility of an employer for his workforce suchas to meet the provisions of applicable legislation. As a rule,the Surveyor is to be constantly accompanied during sur-veys by personnel of the Interested Party.

Interested Parties are to inform promptly the Surveyor ofdefects or problems in relation to class.

Refer also to Ch 2, Sec 2, [2.4] to Ch 2, Sec 2, [2.6].

3.2.3 The Certificate of Classification and/or other docu-ments issued by the Society remain the property of the Soci-ety. All certificates and documents necessary to theSurveyor’s interventions are to be made available by theInterested Party to the Surveyor on request.

3.2.4 During the phases of submarine design and construc-tion, due consideration should be given to rule require-ments in respect of all necessary arrangements for access tospaces and structures with a view to carrying out class sur-veys. Arrangements of a special nature are to be brought tothe attention of the Society.

3.3 Operation and maintenance of submarines

3.3.1 The classification of a submarine is based on theunderstanding that the submarine is loaded and operated ina proper manner by competent and qualified crew or oper-ating personnel according to the environmental, loading,operating and other criteria on which classification isbased.

In particular, it will be assumed that the submarine is oper-ated in the allowable operational and environmental limitsfor which it has been designed.

3.3.2 Submarines are to be maintained at all times, at thediligence of the Owners, in proper condition complyingwith applicable international safety and pollution preven-tion regulations.

3.3.3 Any document issued by the Society in relation to itsinterventions reflects the condition of the submarine asfound at the time and within the scope of the survey. It is theInterested Party’s responsibility to ensure proper mainte-nance of the submarine until the next survey required bythe Rules. It is the duty of the Interested Party to inform theSurveyor when he boards the submarine of any events orcircumstances affecting the class.

3.4 Use of measuring equipment and of service suppliers

3.4.1 General

Firms providing services on behalf of the Interested Party,such as measurements, tests and servicing of safety systemsand equipment, the results of which may form the basis fort

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