Iranian Classification Society Rules

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Rules for the Classification of


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Mobile Offshore Units


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RB-01-ESection 1 GeneralSection 2 DefinitionsCHAPTER 2 CLASSIFICATION AND SURVEYSSection 1 GeneralSection 2 ClassificationSection 3 SurveysCHAPTER 3 HULL CONSTRUCTION AND EQUIPMENTSection 1 GeneralSection 2 MaterialsSection 3 WeldingSection 4 Ice StrengtheningSection 5 Corrosion ControlSection 6 Fire Protection, Means of Escape and Fire Detection & ExtinctionSection 7 Guardrails and BulwarksSection 8 Temporary or Emergency Mooring EquipmentSection 9 AccessSection 10 Towing ArrangementsSection 11 Protective Coatings of Dedicated Seawater Ballast TanksSection 12 Anti-fouling SystemsSection 13 Drainage and Sediment ControlCHAPTER 4 DESIGN CONDITIONSection 1 Design LoadsSection 2 Calculation of StrengthSection 3 Analysis of Overall StrengthSection 4 Scantlings of Structural MembersSection 5 Helicopter DeckSection 6 Position Keeping Systems and ComponentsCHAPTER 5 TYPE OF UNITSSection 1 Self-elevating UnitsSection 2 Column-stabilized UnitsSection 3 Surface Type UnitsCHAPTER 6 WATERTIGHT INTEGRITYSection 1 Watertight BulkheadsSection 2 Closing AppliancesCHAPTER 7 STABILITYSection 1 General Requirements of StabilitySection 2 Stability Criterion under Wind ForceCHAPTER 8 HAZARDOUS AREASection 1 GeneralSection 2 Extent of Hazardous AreaSection 3 VentilationCHAPTER 9 FIRE PROTECTION, MEANS OF ESCAPE AND FIRE EXTINCTIONSection 1 GeneralSection 2 Fire Protection and Means of EscapeSection 3 Fire Detection and Extinction1. Spaces having a fire risk, in principle, are to be provided with an automatic alarm system.3. The fire detection main indicator board is to be at a manned control station and is to be clearly to indicate where fire has been detected.7. Sufficient manual fire alarm stations are to be installed throughout the accommodation spaces, service spaces and control stations. One manually operated call point is to be located at each exit. Manually operated call points are to be readily accessible in the corridors of each deck such that no part of the corridor is more than 20 m from a manually operated call point. Measures are to be taken to prevent inadvertent operation of the manual call alarm system.Section 4 Fire Extinguishing Systems for Helicopter Facilities(5) the fire fighting systems equipment as given in 402. are to be provided and so arranged as to adequately protect both the helicopter deck and fuel storage areas.Section 5 Gas cylindersSection 6 Offshore Accommodation UnitCHAPTER 10 MACHINERY INSTALLATIONS AND ELECTRICAL EQUIPMENTSection 1 Machinery Installations and Electrical Equipment for UnitsSection 2 Machinery Installations and Electrical Equipment for Self-propelled UnitsCHAPTER 11 SPECIFIC OFFSHORE UNIT TYPESSection 1 Offshore Crane UnitsSection 2 Offshore Accommodation UnitsSection 3 Floating PiersSection 4 Offshore Plant UnitsRULES FOR THE CLASSIFICATION OF MOBILE OFFSHORE UNITS