The Royal Norwegian Navy. Standard Requirements and Regulations Part 1 Chapter 1: Naval and Naval Support Vessels 2013

Transcription

1 Standard Requirements and Regulations Part 1 Chapter 1: Naval and Naval Support Vessels 2013 The Naval Systems Division of the Norwegian Defence Logistics Organisation hereby settles the Royal Norwegian Navy Standard Requirements and Regulations for use within the Norwegian Armed Forces. Haakonsvern, Morten Jacobsen (by authority) Rear Admiral Head of Naval Systems Division

2 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Naval and Naval Support Vessels Page 2 Standard Requirements and Regulations Part 1 Chapter 1: Naval and Naval Support Vessels This booklet mainly includes the Royal Norwegian Navy s supplementary requirements and regulations to the January 2013 edition of the DNV Rules for Ships and High Speed, Lightcraft and Naval Surface Craft Pt.5 Ch.14. The foundation of NRAR, as well as details about the relation between the rules within this booklet, the other parts of NRAR, and other rules and regulations, can be found in NRAR Pt.0. CONTENTS Section 1 General Regulations...8 Section 2 Arrangements...13 Section 3 Design Loads...21 Section 4 Structural Strength...32 Section 5 Stability, Watertight and Weathertight Integrity...60 Section 6 Piping Systems...69 Section 7 Machinery, Propulsion and Positioning Section 8 Electric Power Generation and Transfer Section 9 Control and Monitoring Section 10 Fire Safety Section 11 Fire Safety Requirements for FRP Naval Vessels Section 12 Safe Evacuation of Personnel Section 13 Radiation Hazards Section 14 Electromagnetic Compatibility Section 15 Storage Rooms for Explosives...254

3 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Contents Page 3 Contents SECTION 1 GENERAL REGULATIONS...8 A Introduction... 8 A 100 Purpose... 8 A 200 The examination system for naval surface vessels... 8 A 300 International codes and regulations... 9 B Examination Principles... 9 B 100 Application... 9 B 200 Class notations... 9 C Definitions C 100 Terms D Classification of Newbuildings D 100 Risk and vulnerability analysis D 200 General requirements for documentation D 300 Classification basis D 400 Yard qualification D 500 Working relations D 600 Certification of components and equipment D 700 Confidentiality D 800 Area identification E Deviations from the Rules E 100 General SECTION 2 ARRANGEMENTS...13 A Deck Arrangements A 100 Deck definitions A 200 Rescue area A 300 Guard-rails and handholds B Watertight and gas tight compartments B 10 Watertight and gas tight bulkheads, decks and compartments. General B 100 Main Watertight bulkheads B 200 Main Watertight bulkheads (for HS, LC ans NSC) B 300 Collision bulkhead (for HS, LC and NSC) B 400 Watertight bulkheads B 500 Gas tight bulkheads B 600 Watertight and gas tight decks B 700 Watertight compartments B 800 Gas tight compartments C Zones C 100 General principles C 200 Fire control zones C 300 Damage control zones C 400 Gas tight division C 500 Hazardous areas D Accommodation D 100 General E Stores E 100 General F Escape routes F 100 General SECTION 3 DESIGN LOADS...21 A General Requirements A 100 General A 200 Direct calculations and model tests (for HS, LC and NSC) 21 A 300 Vertical design acceleration (for HS, LC and NSC) B Hull Girder Loads (for HS, LC and NSC) B 100 Longitudinal still water loads (for HS, LC and NSC).. 27 B 200 Longitudinal wave bending loads (for HS, LC and NSC) 28 B 300 Horizontal bending moment and shear force (for HS, LC and NSC) 28 B 400 Torsional moment (for HS, LC and NSC) C Local Loads (for HS, LC and NSC) C 100 Sea pressures (for HS, LC and NSC) C 200 Slamming and impact pressures (for HS, LC and NSC) 29 C 300 Liquid pressure in tanks (for HS, LC and NSC) C 400 Dry cargo, stores and equipment (for HS, LC and NSC) 29 C 500 Loads on foundations D Operational Loads D 100 General E Accidental Loads...30 E 100 Local damage...30 E 200 Global damage...31 SECTION 4 STRUCTURAL STRENGTH A General requirements...32 A 100 Structural strength...32 A 200 Plan and particulars...42 A 300 Structural Categorisation, Material Selection and Inspection Principles...42 B Structural Arrangement...43 B 100 Main structure...43 B 200 Bulkheads...45 B 300 Mast for support of sensors and sensor s systems...46 C Local Strength...46 C 100 Minimum thickness...46 C 200 Local structure...46 C 300 Damage of local structure...46 C 400 Acceptance criteria damaged condition...46 D Global Strength...46 D 100 General...46 D 200 Direct calculations (for HS, LC and NSC)...47 D 300 Intact condition...47 D 400 Damaged condition...47 E Weld Connections...48 E 100 Application of fillet welds...48 E 200 Qualification of welding procedures and welders...48 E 300 Fabrication and welding requirements...49 E 400 Production welding...52 E 500 Welding of stainless steel...53 E 600 Post weld heat treatment...53 E 700 Grinding...54 E 800 Production tests...54 E 900 Dimensional control and tolerance requirements...54 E 1000 Non-destructive testing and inspection...55 F Buckling (for HS, LC and NSC)...58 F 100 General (for HS, LC and NSC)...58 G Direct Strength Calculations...58 G 100 Modelling of hull structure (for HS, LC and NSC)...58 G 200 Modelling of hull structure...59 H Hull structure design, Aluminium alloy...59 I Hull structure design, Fibre composite and sandwich constructions...59 SECTION 5 STABILITY, WATERTIGHT AND WEATHERTIGHT INTEGRITY A General...60 A 100 Applicability...60 A 200 Plans and Calculations...60 A 300 Exceptions...60 A 400 Additional Requirements...60 B Freeboard, External Watertight Integrity (for HS, LC and NSC)...60 B 100 Applicability...60 B 200 Design waterline...60 B 300 External doors...60 B 400 Side and stern doors...61 B 500 External hatches...61 B 600 Air pipes...61 B 700 Ventilators...61 B 800 Scuppers and discharge...61 B 900 Freeing ports...61 B 1000 Windows...61 B 1100 Deadlights...61 C Intact Stability Requirements...62 C 100 Loading Conditions...62 C 200 Calculation of stability...62 C 300 Calculation of effects from external loads...62 C 400 Intact stability for monohull vessel...62 C 500 Intact stability for multihull vessel...63 C 600 Excessive metacentric height, displacement vessels...63 D Internal Watertight Integrity...63 D 100 Watertight subdivision...63 D 200 Extent of damage for monohull vessels...64 D 300 Extent of damage for multihull vessels...64 D 400 Survival criteria after damage, all vessels...65 E Inclining test procedure...65

4 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Contents Page 4 E 100 Description of procedure F Draught- and Load line marks F 100 General G Estimates and Calculations of Weights and Centres of Gravity G 100 Definitions G 200 Preliminary Weight Estimate G 300 Detailed Weight Estimate SECTION 6 PIPING SYSTEMS...69 A General A 100 Application A 200 Definitions A 300 Plans and particulars A 400 Materials B Design Principles B 100 General B 200 Arrangements B 300 Operation of valves B 400 Shock Loads Design C Pipe, Pumps, Valves, Flexible Hoses and Detachable Pipe Connections C 100 General C 200 Pumps C 300 Bellow and bellow units C 400 Flexible hoses D Manufacture, Workmanship, Inspection and Testing 81 D 100 General E Marking E 100 General F Machinery Piping Systems F 100 General F 200 Seawater cooling systems F 300 Fresh water cooling systems F 400 Lubricating oil systems F 500 Fuel oil systems F 600 Air inlets for main and auxiliary engines F 700 Exhaust systems F 800 Hydraulic systems F 900 Machinery space ventilation F 1000 Compressed air systems F 1100 Refrigerating and freezing system for provisions G Vessel Piping System G 100 General G 200 Air, sounding and overflow pipes G 300 Main seawater system G 400 Bilge systems G 500 Drainage G 600 Oil pollution prevention G 700 Ballast systems G 800 Ventilation systems G 900 Sanitary Systems G 1000 Helicopter Fuelling System H Sea Chests and Separate Seawater Inlets H 100 Sea chests H 200 Separate seawater inlets I Thermal Insulation I 100 General I 200 Types of insulation SECTION 7 MACHINERY, PROPULSION AND POSITIONING 121 A General Requirements A 100 General A 200 Documentation B Operational Conditions B 100 Operational conditions C Arrangement and System Design C 100 Basic principles C 200 Machinery space arrangements C 300 Redundancy C 400 Arrangement of air intake D Component Specific Requirements D 100 Propeller D 200 Shafting and vibration D 300 Steering gear D 400 Thrusters D 500 Water Jet D 600 Diesel Engines D 700 Gas Turbines D 800 Steam Turbines D 900 Compressors D 1000 Active Stabiliser Fin Systems E E 100 E 200 E 300 Miscellaneous Ventilation Fresh Water Production Ride Control System (RCS) F Testing F 100 General G Shock Loads G 100 System requirements SECTION 8 ELECTRIC POWER GENERATION AND TRANSFER A General Requirements A 100 Application A 200 Definitions A 300 Documentation B Design Principles B 100 Environmental conditions B 200 Earthing B 300 Marking B 400 Indicator lights B 500 Enclosures B 600 Lighting system C System Design C 100 Supply systems C 200 D.C. voltage variations C 300 Main source of electrical power C 400 Emergency source of electrical power C 500 Casualty power distribution system C 600 Distribution C 700 Shore connection C 800 Choice of cable and wire types C 900 Control gear for motors and other consumers C 1000 Battery supplies C 1100 System voltages C 1200 A.C. voltage and frequency variations C 1300 Circuit protection D Switchgear and Control Gear Assemblies D 100 Mechanical construction D 200 Remote operated switchboard D 300 Instruments E Rotating Machinery E 100 Motors E 200 Generators F Miscellaneous Equipment F 100 Switchgear F 200 Galley equipment F 300 Batteries F 400 Socket outlets F 500 Luminaries G Installation and Testing G 100 Principles G 200 Generators G 300 Switchboards G 400 Cables G 500 Screening and earthing of cables G 600 Marking of cables G 700 Batteries G 800 Low intensity illumination G 900 Emergency lighting H Electric Propulsion H 100 General H 200 Design principles H 300 System design H 400 Control System Design I Converters I 100 General I 200 Transformers I 300 Rotating converters I 400 Static converters J A.C. Supply Systems Above 440 V J 100 Application...168

5 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Contents Page 5 J 200 General requirements J 300 Design principles J 400 Switch- and control-gear assemblies J 500 Cables, construction, and testing J 600 Miscellaneous equipment K Additional Requirements for D.C. Systems SECTION 9 CONTROL AND MONITORING172 Subsection 1 General requirements A Classification A 100 Rule applications A 200 Classification principles A 300 Alterations and additions A 400 Assumptions B Definitions B 100 General terms B 200 Terms related to computer based system B 300 Additional Definitions for RNoN Vessels C Documentation C 100 General C 200 Type approved products C 300 Plans and particulars D Tests D 100 General D 200 Software module testing D 300 Integration testing D 400 System testing D 500 On-board testing Subsection 2 Design Principles A System Configuration A 100 General A 200 Field instrumentation A 300 System A 400 Integrated system B Response to Failures B 100 Failure detection B 200 System response C Emergency Operation C 100 Manual emergency operation Subsection 3 System Design A System Elements A 100 General A 200 Automatic control A 300 Remote control A 400 Protective safety system A 500 Alarms A 600 Indication A 700 Planning and reporting A 800 Calculation, simulation and decision support A 900 Condition-based maintenance monitoring B General Requirements B 100 System operation and maintenance B 200 Power supply requirements for control and monitoring systems 185 C Additional Requirements for System Design of HS, LC and NSC C 100 Alarm system in the accommodation D Periodically Unattended Machinery Spaces D 100 General D 200 Power management system E Control and Monitoring of Propulsion, Directional Control, Stabilisation and Auxiliary Systems E 100 General E 200 Stabiliser control system E 300 Ride control system Subsection 4 Additional Requirements for Computer Based Systems A General Requirements A 100 Assignment of responsibility when installing integrated systems 188 A 200 System dependency A 300 Storage devices A 400 Computer usage A 500 System response and capacity A 600 Temperature control A 700 A 800 A 900 System maintenance System access System Security B System Software B 100 B 200 Software requirements Software development C Control system Networks and Data Communications Links 192 C 100 General C 200 Network analysis C 300 Network test and verification C 400 Network documentation requirements C 500 Wireless communication C 600 Documentation of wireless communication D User Interface D 100 General E Damage Control System E 100 General requirements E 200 User Interface E 300 Communication E 400 NBC, monitoring and control E 500 Fire fighting system, monitoring and control E 600 Flooding, monitoring and control Subsection 5 Component Design and Installation A General A 100 Environmental strains A 200 Materials A 300 Component design and installation A 400 Maintenance, checking A 500 Marking A 600 Standardising B Environmental Conditions, Instrumentation B 100 General B 200 Electric power supply B 300 Pneumatic and hydraulic power supply B 400 Temperature B 500 Humidity B 600 Salt contamination B 700 Oil contamination B 800 Vibrations B 900 Inclination B 1000 Electromagnetic compatibility B 1100 Miscellaneous B 1200 Shock C Electrical end Electronic Equipment C 100 General C 200 Mechanical design, installation C 300 Protection provided by enclosure C 400 Cables and wires C 500 Cable installation C 600 Power supply C 700 Fibre optic equipment C 800 Sensors Subsection 6 User Interface A General A 100 Application A 200 Introduction B Workstation Design and Arrangement B 100 Location of visual display units and user input devices 202 C User Input Device and Display Unit Design C 100 User input devices C 200 Visual display units C 300 Colours C 400 Requirements for preservation of night vision (UIDs and VUDs for installation on the navigating bridge) D Screen Based Systems D 100 General D 200 Illumination D 300 Colour screens D 400 Computer dialogue D 500 Application screen views SECTION 10 FIRE SAFETY A General A 100 General B Rule References and Definitions...206

6 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Contents Page 6 B 100 Definitions C Documentation C 100 Requirements for documentation D Fire Control Zones D 100 Fire control zones E Fire Integrity of Bulkheads and Decks E 100 Fire integrity of bulkheads and decks E 200 Division penetrations F Ventilation Systems F 100 Requirements for ventilation system G Material Requirements G 100 Restricted use of combustible material H Fire Detection Systems H 100 Areas to be protected H 200 Requirements for systems H 300 Detector configuration H 400 The alarm system I Fixed Fire-extinguishing System I 100 Fixed fire-extinguishing systems for machinery spaces 211 I 200 Fixed local application fire extinguishing system I 300 Design considerations I 400 Water spraying system for storage rooms for explosives 215 I 500 General requirements for fixed fire-extinguishing systems 215 J Fire-extinguishing Equipment J 100 Portable fire extinguishers J 200 Fire extinguishers in machinery spaces J 300 Portable foam applicators outside machinery spaces. 216 K Fire Pumps and Fire Main K 100 Capacity of fire pumps K 200 Water distribution system L Firefighter s Outfit L 100 Number and location L 200 Personal equipment and breathing apparatus M Other Spaces M 100 Storage rooms for explosives M 200 Paint lockers and flammable liquid lockers M 300 Spaces containing pressure chambers and oxygen storage tanks 218 M 400 Protection of weapon systems N Helicopter Facilities O Fire Control Plans O 100 Requirements SECTION 11 FIRE SAFETY REQUIREMENTS FOR FRP NAVAL VESSELS A General Requirements A 100 General A 200 Rule references and definitions A 300 Requirements for documentation B Structural Fire Protection, Materials and Arrangements B 100 Fire control zones B 200 Structural fire protection B 300 Material requirements B 400 Arrangements B 500 Means of escape C Ventilation C 100 Ventilation zones and active smoke control D Fire Detection System D 100 Arrangement E Fire Extinguishing System and Hazardous Spaces223 E 100 Fixed fire extinguishing system for machinery spaces 223 E 200 Other fire hazardous spaces or equipment F Fire pumps, Fire Main and Portable Extinguishers 224 F 100 Fire pumps, fire main, and fire hoses F 200 Portable fire extinguishers G Sprinkler System G 100 Sprinkler System H Firefighter s outfit H 100 General I Additional Fire Protection (optional) I 100 General I 200 Accommodation I 300 Engine room SECTION 12 SAFE EVACUATION OF PERSONNEL 227 A Escape, Evacuation and Rescue Eq. Stowages (Regulation 9) A 100 General stowage A 200 Rescue craft A 300 Fast Rescue boats B External Communcication Equipment (Regulation 13) 228 B 100 Communication B 200 Signalling equipment C Emergency Escape Breathing Devices, EEBD (Regulation 20) D Launching Arrangements (Regulation 22) D 100 General D 200 Davits for Fast Rescue boats E Evacuation Arrangements (Regulation 23) E 100 Climbing net E 200 Pilot ladder F Survival Craft (Regulation 24) F 100 Liferafts G Life-Jackets (Regulation 25) G 100 Life jacket, general service G 200 Life jacket, additional H Personal Thermal Protection suits (Regulation 26) 232 H 100 Immersion suits H 200 Anti-Exposure suits I Rescue Arrangements (Regulation 27) I 100 Mass Rescue I 200 Line Thrower SECTION 13 RADIATION HAZARDS A General A 100 Application A 200 General requirements B Definitions B 100 Terms C Documentation C 100 Plans and particulars D Design Principles D 100 General D 200 Prevention of auto ignition D 300 Prevention of personnel exposure E Installation E 100 General E 200 Marking F Testing F 100 Harbour Acceptance Tests (HAT) for the vessel SECTION 14 ELECTROMAGNETIC COMPATIBILITY A General A 100 Application A 200 Principles A 300 Standards B Definitions B 100 Terms B 200 Abbreviations C Documentation C 100 Plans and particulars C 200 EME test plan C 300 Cable list D Design Principles D 100 General D 200 Lightning protection...243

7 Standard Requirements and Regulations 2013 Pt.1 Ch.1: Contents Page 7 D 300 Electrostatic discharge D 400 Topside design D 500 EME zones D 600 Equipment EME E Installation E 100 General E 200 Shielding E 300 Bonding and earthing E 400 Cabling E 500 Filtering E 600 Lightning protection E 700 Electrostatic discharge E 800 Marking F Testing F 100 General F 200 Factory Acceptance Tests (FAT) for equipment F 300 Harbour Acceptance Tests (HAT) for the vessel F 400 Sea Acceptance Tests (SAT) for the vessel SECTION 15 STORAGE ROOMS FOR EXPLOSIVES 254 A General A 100 Application A 200 Definitions B Basic Requirements B 100 General B 200 Plans and particulars to be submitted C Arrangements C 100 General D Structure D 100 Structural requirements E Fire Safety E 100 General E 200 Structural fire safety E 300 System fire safety E 400 Fire protection F Radiation Hazards G Signboards G 100 General

8 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.1: General Regulations Page 8 Section 1 General Regulations This section covers general regulations for vessels classified in accordance with the rules stated in DNV Rules for Classification of Ships or Classification of High Speed, Light Craft and Naval Surface Craft (HSLCNSC) Pt.5 Ch.14 Naval and Naval Support Vessels. Since surface vessels of the Norwegian Armed Forces are classified in accordance with NRAR, only parts of Section 1 in Pt.5 Ch.14 are made applicable. General requirements for NRAR as a whole are given in NRAR Pt. 0 General Information and Requirements. A Introduction A 100 Purpose 101 DNV rules fully applicable In the case of inconsistencies and/or conflict between the general regulations stated in DNV RULES FOR SHIPS/HSLCNSC Pt.5 Ch.14 Sec.1 and the regulations and requirements stated in NRAR, the rules stated in NRAR shall apply. A 200 The examination system for naval surface vessels 201 Following rules apply in addition to rules specified by DNV: NRAR is a national naval standard defining acceptance criteria and requirements for design, construction, survey, validation, verification and testing of Norwegian naval and coast guard vessels, including requirements with regard to hull (i.e. arrangements, strength, integrity and stability), machinery installations, auxiliary systems, electrical systems, deck- and internal equipment. NRAR is applicable for both newbuildings and the operational phase, and includes defined military systems. 202 Following rules apply in addition to rules specified by DNV. The Norwegian Defence Materiel Safety Authority (NDMSA) has the role as Administration. i.e. Naval Administration (ref. NRAR Part 0). The Norwegian Defence Logistics Organisation (NDLO) supports by technical expertise NDMSA in their function as Naval Administration for all Norwegian naval vessels. 203 Following rules apply in addition to rules specified by DNV: If the Vessel is not taken into a civilian class Society, the terms equivalent class and classification shall be understood as NDMSA military safety inspection and approbation system for naval surface vessels in the Royal Norwegian Navy and the Norwegian Coast Guard. This military safety and approbation also includes rules and requirements defined in DNV RULES FOR SHIPS/HSLCNSC Pt.1 through Pt.4 and Pt.5 Ch.14 Naval and Naval Support Vessels or other relevant design rules. 204 Reference is given to NRAR Part 0 E (Inspection and Testing) and F (Quality Assurance).

9 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.1: General Regulations Page Requirements concerning RNoN s QA systems can be found in NRAR Part 0 F (Quality Assurance). 206 A 300 International codes and regulations The NDMSA has the role as national naval administration for all Norwegian naval vessels (ref. NRAR Part 0). B Examination Principles B 100 Application 101 The requirements in NRAR shall be regarded as supplementary to those given in DNV Rules for SHIPS/HSLCNSC Pt.5 Ch.14 and defines additional notation (navdist) in accordance with Pt.5 Ch.14 Sec.1 E102. For auxiliary vessels not covered by NRAR Pt.1 Ch.1, Pt.1 Ch.2 within NRAR shall apply, see Pt.0 for details In addition to the guidance note stated in DNV RULES FOR SHIPS/HSLCNSC Pt.5 Ch.14 Sec.1 B104, support requirements to military systems may typically be: - structural strength to cope with blasts from firing weapons (i.e. both missiles and guns), including sonic boom and structural loads, - EMC/EMI 105 Following rules apply in addition to rules specified by DNV: Design brief report shall be presented in the booklet Skipsbok, del I B 200 Class notations DNV rules fully applicable

10 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.1: General Regulations Page Following rules apply in addition to rules specified by DNV. Vessels classified in accordance with NRAR Part 1 Chapter 1 without use of DNV classification expertice, shall not have the maltese cross in front of the class notation 206 Following rules apply in addition to rules specified by DNV. Vessels classified in accordance with NRAR Part 1 Chapter 1 without use of DNV classification expertice, shall not have the maltese cross in front of the class notation 207 Following rules apply in addition to rules specified by DNV. Vessels classified in accordance with NRAR Part 1 Chapter 1 without use of DNV classification expertice shall not have the maltese cross in front of the class notation 208 Following rules apply in addition to rules specified by DNV. Vessels classified in accordance with NRAR Part 1 Chapter 1 without use of DNV classification expertice shall not have the maltese cross in front of the class notation C Definitions C 100 Terms

11 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.1: General Regulations Page D Classification of Newbuildings D 100 Risk and vulnerability analysis D 200 General requirements for documentation 201 Following rules apply in addition to rules specified by DNV: RNoN naval vessels are to be classified according to NRAR. The additional documentation that normally shall be submitted for NRAR classification is specified in the relevant parts of NRAR.. The additional documentation shall clearly show that the NRAR rules/requirements are fulfilled. 202 D 300 Classification basis 301 If the Vessel is not taken into a civilian class Society, the terms equivalent class and classification shall be understood as NDLO for military safety inspection and approbation system for naval surface vessels in the Royal Norwegian Navy (RNoN) DNV rules applicable. If the Vessel is not taken into a civilian class Society, the terms equivalent class and classification shall be understood as NDLO for military safety inspection and approbation system for naval surface vessels in the Royal Norwegian Navy (RNoN).

12 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.1: General Regulations Page 12 D 400 Yard qualification 401 The requirements stated in NRAR Part 0 F (Quality Assurance) shall apply. If applicable, deviation from these requirements will be stated in the contract. D 500 Working relations 501 Following rules apply in addition to rules specified by DNV: The arrangement for regular quality meetings shall in the contract be stated in the section identifying the Program Management Plan (PMP) or Statement of Work (STOW). D 600 Certification of components and equipment 601 D 700 Confidentiality In the case that a classification society (or similar institution) performs work on behalf of NDMSA, this classification society shall store files and records in accordance with confidentiality and security requirements set forward by NDMSA. 703 Communication between yard and any classification society (or similar institution) working on behalf of NDMSA shall comply with relevant security procedures identified/specified by NDMSA. D 800 Area identification 801 E Deviations from the Rules E 100 General 101 Following rules apply in addition to rules specified by DNV: Norwegian Armed Forces naval and naval support vessels as defined in NRAR Pt.0 are to be classified according to NRAR Pt.1 Ch.1, in addition to Pt.1 through Pt.4 and Pt.5 Ch.14 in DNV RULES FOR SHIPS/HSLCNSC. Other parts of the DNV rules may be used instead if better suitable. 102 DNV rules applicable. Vessels classified in accordance with NRAR will be given the additional class notation (navdist) 103 Following rules apply in addition to rules specified by DNV: Deviations shall be subject to risk assessment and the decision shall be explined in appendix to Seaworthiness Document.

13 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page 13 Section 2 Arrangements This Section covers requirements regarding deck arrangements, watertight compartments, accommodation, stores, escape routes and internal structures. All general requirements regarding maintenance, procurement, quality assurance (QA) and approbation, as well as abbreviations and definitions are covered by Part 0 General Information and Requirements. A Deck Arrangements A 100 Deck definitions 101 Bulkhead deck is the watertight deck above the flooded waterline at which all main watertight bulkheads terminate. 1 deck is normally defined as the bulkhead deck. In regions with raised quarter deck the main watertight bulkheads shall extend to this deck deck is the uppermost deck extending completely and continuously from stem to stern. 2.deck, 3.deck etc. are respectively the first, second, etc. deck below 1.deck. 01 deck, 02 deck, etc. are respectively the first, the second, etc. deck above 1.deck. 2.deck, 3.deck etc. below 1.deck shall be watertight. Exceptions may be allowed, upon approval, in machinery space DNV rules fully applicable with the following amendment. On small vessels RNoN may decide to use a different definition for the damage control deck. 105 The damage control deck is the deck on which the damage control equipment and stations are located. It is the uppermost covered deck having fore and aft access through watertight openings in the main transverse bulkheads. The damage control deck is watertight and the weather protection is made water and gastight. The damage control deck shall be above the flooded water line and such that progressive flooding from water on parts of the deck will not take place. 106 A double bottom shall be fitted in the entire length of the ship. The space between the shell plating and inner bottom is normally used for tanks. The top of the inner bottom is normally called tank top. 107 The structure including floors and girders between the tank top and shell plating is all parts of the bottom structure. 108 Weather deck shall have camber in order to prevent accumulation of water. The camber can consist of a continuous curve or straight lines. 109 There shall be arranged drains in all decks in all rooms A 200 Rescue area 201 A 300 Guard-rails and handholds 301

14 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page 14 B B 10 Watertight and gas tight compartments The name of the Sub-section compared to DNV RULES FOR SHIPS/HSLCNSC Pt.5 Ch.14 Sec.2 is changed in order to include gas tight compartments. In addition a new Sub-section element is introduced, B10, which describes general requirements not accounted for in the DNV rules. In NRAR it is distinguished between main watertight bulkhead and watertight bulkhead. Watertight and gas tight bulkheads, decks and compartments. General. 11 A watertight bulkhead or deck is a structural bulkhead or deck dimensioned to withstand a prescribed pressure head without water leakage. 12 A main watertight bulkhead is a continuous transverse watertight bulkhead extending from bottom to the bulkhead deck and from side to side. All other transverse or longitudinal watertight bulkheads are designated as watertight bulkheads. The primary functions of main watertight bulkheads are: - to limit the extent of flooding after accidental or action damage - to form the limits of the NBC-zones - to support the hull plating and longitudinal structure and maintain the external hull form - to help resist hull torsional loads - to support the internal decks and equipment attached to the bulkheads. Other primary functions may apply, i.e. blast boundaries etc. 13 Access openings, pipes, electrical cables and remote control extensions penetrating watertight and airtight bulkheads and decks, shall be arranged with penetration fittings with the same degree of tightness as the actual bulkhead or deck being protected and be of approved type. 14 A main watertight compartment is a compartment bounded by two adjacent main watertight bulkheads, shell and bulkhead deck. All other compartments bounded by main watertight bulkheads, watertight bulkheads, decks and shell are designated watertight compartments. 15 Gas tight compartment boundaries shall fulfil air test requirements according to DNV NBC-2 notation 16 A gas tight compartment is a compartment which fulfils the air test requirements. A gas tight compartment may be bounded by gas tight bulkheads and decks, main watertight bulkheads, watertight bulkheads, decks and shell. 17 A watertight compartment is also gas tight. B 100 Main Watertight bulkheads 101 Main watertight bulkheads shall be installed and located to fulfil stability and buoyancy compartmentation requirements according to NRAR Pt.1 Ch.1 Sec Main watertight bulkheads are required to be gas tight. 103 Access and ventilation openings in main watertight bulkheads shall have watertight closing appliances of approved type.

15 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page Access and ventilation openings shall be kept closed and monitored in the damage control centre and the machinery control room in accordance with established watertight and gas tight conditions in force. Monitoring of access and ventilation openings with classification letters Y, Z and M will be determined on a project to project basis. 105 For smaller vessels (L< 30m), step or recess in collision bulkheads above the level of the deepest waterline or tank top (whichever is highest up) can be accepted. 106 Access openings leading to compartments, except for tanks, cofferdams and voids, shall be fitted with doors arranged to swing from midship and according to the following standard plans (or minimum similar functionality in all respect): - KNMS S - KNMS S - KNMS S 107 Sill height shall be mm above damage control deck inside vessel mm in bulkheads below damage control deck 108 Quick acting doors shall be used for access to manned spaces, and elsewhere as specified by NDLO. 109 Access openings leading to tanks, cofferdams and voids shall be fitted with manhole covers according to standard plan KNMS S (or minimum similar functionality in all respect). 110 Steps or recesses in main transverse bulkheads are not accepted for two- and three compartment vessels. As a consequence of this requirement, double bottom or side tanks should be divided in line with main transverse bulkheads. However, a total un-alignment of maximum 1.0 [m] is permissible. 111 Access openings shall not penetrate main watertight bulkheads below the damage control deck. Exception may, after approval, be accepted for manholes leading to tanks, cofferdams, and voids. 112 Pipe, electrical cable and manhole penetrations shall be minimised to the most practical extent below damage control deck. 113 Lightweight pipes connected by gaskets and friction only (drain and sewage) and piping systems containing such elements are not allowed to penetrate main watertight bulkheads. 114 Mechanical remote control extensions are not allowed to penetrate main watertight bulkheads. B 200 Main Watertight bulkheads (for HS, LC ans NSC) 201

16 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page For smaller vessels (L< 30m), 3 watertight compartments may be accepted. A collision bulkhead and a bulkhead in front of the engine room shall be installed as a minimum requirement, provided damage stability criteria are met. 203 Upon approval, only collision bulkhead needs to be extended to the quarterdeck in a region with raised quarterdeck. B 300 Collision bulkhead (for HS, LC and NSC) 301 B 400 Watertight bulkheads 401 Watertight bulkheads shall be installed as needed to form watertight compartments as required for the protection of explosives and vital equipment, and to form tanks, cofferdams and voids. 402 Bulkheads forming the outside boundaries or deckhouse shall be watertight and gas tight. 403 Bulkheads surrounding engine- and boiler exhaust uptakes below bulkhead deck are required watertight and airtight. 404 Access openings in watertight bulkheads leading to compartments except tanks, cofferdams and voids shall be fitted with doors located to swing out of the compartment served and according to standard plans (or minimum similar functionality in all respect): - KNMS S - KNMS S - KNMS S - KNMS S - KNMS S 405 Sill heights shall be as follows: mm above damage control deck inside vessel mm in bulkheads below damage control deck mm in bulkheads surrounding deckhouses 406 Quick acting doors shall be used for access to manned space and elsewhere as required by NDLO. 407 Access-openings leading to tanks, cofferdams and voids shall be fitted with manhole covers according to standard plan KNMS S (or minimum similar functionality in all respect). B 500 Gas tight bulkheads 501 Gas tight bulkheads shall be installed as needed to form gas tight compartments as required, to avoid entry of NBC agents into citadels and to divide deckhouses in separate gas tight sections. 502 Bulkheads surrounding engine and boiler room exhaust uptake above bulkhead deck are required to be gas tight. 503 Bulkheads forming the outside boundaries or deckhouse shall be gas tight. 504 Access openings in gas tight bulkheads shall be fitted with doors according to standard plan KNMS S (or minimum similar functionality in all respect).

17 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page 17 B 600 Watertight and gas tight decks 601 Bulkhead deck and weather portions of decks are required to be gas tight and watertight. 602 Decks below and including 1 deck shall be watertight. Exceptions may be allowed, upon approval, in machinery spaces Access openings leading to compartments, except for tanks, cofferdams and voids, shall be fitted with hatches according to the following standard plans (or minimum similar functionality in all respect): - KNMS S - KNMS S - KNMS S - KNMS S - KNMS S - KNMS S 604 Access hatches from manned spaces shall be fitted with 450 mm escape scuttles according to standard plan KNMS S (or minimum similar functionality in all respect). 605 Height of hatch coamings shall be as follows: and 600 mm, on weather decks abaft and forward of 0.25 L from F.P respectively mm inside vessel. 606 Access openings leading to tanks, cofferdams and voids shall be fitted with manhole covers according to the following standard plans (or minimum similar functionality in all respect): - KNMS S - KNMS S - KNMS S 607 Manhole covers in compartments where water can accumulate shall be on coamings according to KNMS S (or minimum similar functionality in all respect). B 700 Watertight compartments 701 Watertight compartments are compartments in addition to main watertight compartments described in B14 and B Watertight compartments are required for the following vital spaces located below bulkhead deck: - Magazines, also watertight above bulkhead deck - Operating rooms - Electronic rooms - Sonar rooms - Degaussing rooms - Gyro rooms - Transformer and converter rooms - Switchboard rooms - Machinery- and boiler rooms - Machinery control rooms - Steering gear rooms - Escape trunks below bulkhead deck - Stair trunks - Elevator trunks Dependent on the type of vessel, deletions and additions may be required.

18 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page Pipe penetrations in watertight compartments shall be in accordance with the requirements stated in NRAR Pt.1 Ch.1 Sec.6. Electrical cable penetration fittings shall be in accordance with the requirements stated in NRAR Pt.1 Ch.1 Sec.8. B 800 Gas tight compartments 801 The following compartments are required gas tight: - Magazines - Compartments containing flammable liquids and materials - Battery rooms - Decontamination stations - Wheelhouse - Escape trunks - Machinery and boiler rooms. Dependent on the type of vessel, deletions and additions may be required. C Zones C 100 General principles C 200 Fire control zones A drawing defining the different zones and the fire rating of the boundaries shall be worked out and delivered for approval during the design process. C 300 Damage control zones A drawing defining the zones shall be worked out and delivered for approval during the design process. C 400 Gas tight division An NBC zone may consist of a group of gastight compartments forming a citadel. The access to the group of compartments is arranged through air locks. 403 An NBC zone has autonomic ventilation system preventing ingress of contaminated air. Ventilation systems used in connection with NBC/gastight citadels shall have excess pressure. Locks to and from the gas citadel shall ensure constant excess pressure in the gas citadel. All doors in the gas citadel shall open outwards. 404 A drawing defining the zones (citadels) shall be worked out and delivered for approval during the design process.

19 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page More specific requirements to NBC zones, if any, will be specified by NDLO on a project to project basis. C 500 Hazardous areas Other hazardous areas shall be defined as appropriate. These areas may be related to RADHAZ, arc of weapon fire, gun blast etc. D Accommodation D 100 General 101 Public spaces and crew accommodation shall be designed and arranged to protect the occupants from unfavourable environmental conditions, and to minimize the risk of injury to occupants during normal and emergency conditions. An accommodation plan shall be submitted to NDLO for approval. The plan shall at least include arrangement of cabins, public spaces and the baggage area. Sleeping cabins may be arranged below bulkhead deck, but not forward of the collision bulkhead E Stores E 100 General 101 In stores, adequate means shall be fitted to prevent shifting of stored goods in accordance with the design acceleration in addition to slamming /whipping of the vessel. 102 Special requirements to stores may be required if specific shock requirements are given. 103 Elastic (rubber band like) tie downs or securing devices shall be avoided. Only rope or textile band with a spanner are allowed for securing if needed. 104 For safety reasons it may be required that ammunition stores are equipped for flooding. The structure shall be able to handle the pressure. Special requirements shall then be given with respect to speed of flooding and draining and to which level the room shall be flooded. 105 Drains in store rooms shall to largest possible extent be protected from clogging caused by stored materials which may have come adrift. F Escape routes F 100 General 101 The vessel shall have escape routes for safe evacuation, designed according to ANEP-77 Naval Ship Code Annex Chapter VII Regulation 16 and 17.

20 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.2: Arrangements Page Plans for escape routes shall be submitted to NDLO for approval. 103 Doors to escape routes shall open in the direction of the escape route. Doors from cabins and other rooms intended for fewer than 10 people may open inwards.

21 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.3: Design Loads Page 21 Section 3 Design Loads This section covers requirements and regulations regarding design loads for naval surface vessels. Requirements concerning structural strength are dealt with in Section 4. All general requirements, abbreviations and definitions concerning NRAR as a whole are covered in Pt.0 General Information and Requirements. A General Requirements A 100 General A document (Loading Plan) describing all relevant loads, load combinations and accelerations for use in the strength analyses shall be worked out and presented for approval during the design process. 103 Relevant loads and load-cases (combination of loads) shall be established for the relevant levels of strength analysis. If not otherwise expressly stated in the contract, Level 1 and Level 3 analysis are required. Strength calculation shall be performed by direct stress calculations. Loads shall be derived in a format suitable for direct strength analysis. Relevant loads are, but not limited to: still water loads, linear and non-linear global hull girder wave loads, external water pressure o steady state (linear or non-linear) o slamming/impact loads (non-linear), o pressure above WL deck loads flooding loads (intentionally or unintentionally) internal pressure in tanks, inertia loads from heavy objects, thrust forces from propulsion. pressure pulses from propulsion (e.g. waterjets), local loads from ride control equipment such as foils or fins, impact loads from floating objects and objects falling on the deck. ice pressure. A 200 Direct calculations and model tests (for HS, LC and NSC) 201 For vessels of any length the global wave loads are generally to be determined in accordance with DNV Pt.3 Ch.9 Sec.1 and Sec.2 in the Rules for Classification of HS, LC and NSC. The exceptions and amendments to DNV HSLCNSC Pt.3 Ch.9 Sec.1 and Sec.2 with respect to load calculation are described in Item For local loads, the largest uncertainty is associated with wave impact loads (slamming loads). Quantifications of such loads shall be based on model tests or properly verified calculation methods. In

22 Standard Requirements and Regulations 2013 Pt.1 Ch.1 Sec.3: Design Loads Page 22 case model test are used, the test procedures shall be carefully planned in order to obtain useful data. Pressure shall be monitored as average pressure of areas not less then the square of framespacing. The results shall be obtained in irregular waves. 204 Calculations based on linear theory shall be performed in any case. The importance of non-linear effects shall be assessed. The linear calculations shall be supplemented with non-linear effects if necessary. Important non-linear effects shall be accounted for either in the direct calculations or as a correction factor (to results from linear calculations) based on model tests or experience from comparable designs. The calculations shall be based on the operational restrictions and operational profile of the vessel (see A201). Motion damping devices shall be incorporated in the analysis if they will significantly influence the investigated type of vessel response. 205 The influence of wave impact loads and slamming on the vertical bending moment is normally not accounted for in linear or non-linear hydrodynamic analyses. The influence shall be added to the moment envelope derived from linear or non-linear analyses. Linear analyses (e.g. strip theory) resulting in vessel motion, accelerations and external pressure distribution can be used for determination of linear global wave loads, linear steady state external water pressure, inertia loads from heavy objects and tank content. In heavy seas, non-linear Froude-Krylov and restoring forces are important for ships with nonvertical ship sides and shallow aft body. Significant wave impact loads can occur on craft with large flare, wetdeck, centre bow and shallow aft body. Air leakage on SESs is another nonlinear effect that may be important. Such effects may need to be coupled to the motion responses to be calculated directly in the time domain. Dynamic effects such as springing and whipping may increase the hull girder response and fatigue damage significantly. The effect of springing is of particular importance when the frequency of the wave encounter is close to the natural period of the ship structure. This is especially the case for high forward speed. 206 The following exceptions and amendments in Pt.3, Ch.9 Sec.1, Sec.2 and Sec.6 of the DNV Rules for Classification of HS, LC and NSC with respect to load calculation shall apply. Items in DNV HSLCNSC Pt.3 Ch.9 Sec.1, Sec.2 and Sec. 6 not mentioned here shall apply as is. Other subjects included in DNV HSLCNSC Pt.3 Ch.9 Sec.1 are dealt with in other NRAR sections. Pt. 3, Ch. 9 Sec. 1, A201: The operational restrictions of the craft shall be given as a table showing the maximum allowed speed as a function of significant wave height. The operational restrictions shall be based on hydrodynamic analyses and/or model tests. Criteria for determination of operational restrictions may be regularity, passenger and crew safety and structural safety. The operational restrictions may be quantified based on horizontal and vertical acceleration, slamming rate, relative motion between the vessel and the waves, etc. The response of the vessels shall be based on the steepest possible wave, i.e. 7:1 (length to height) or shortest possible period in the scatter diagram. The peak response is assumed to occur at wave length similar to the vessel s length. Hence, response shall also be calculated for this wave length for lower sea-states where the steepest wave is shorter than the vessel s length. It is possible to specify that the vessel is not at all allowed to operate in sea states with significant wave height above a certain level. These sea states can then be discarded from the direct calculations. In this case, it shall be documented that it is possible to seek shelter and avoid sea states with significant wave height above the maximum allowed.