Chapter 9 – Fixed Fire Detection and Fire Alarm Systems
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.339(91) – Adoption of Amendments to the International Code for Fire Safety Systems (FSS Code) – (Adopted on 30 November 2012)The Annex below is consolidated into International Code for Fire Safety Systems (FSS Code) - Annex – Amendments to the International Code for Fire Safety Systems (FSS Code)The Annex below is consolidated into International Code for Fire Safety Systems (FSS Code) - Chapter 9 – Fixed Fire Detection and Fire Alarm Systems

Chapter 9 – Fixed Fire Detection and Fire Alarm Systems

  12 In paragraph 2.2.1, after the third sentence, the following new sentence is added:

  • "On ships constructed on or after 1 July 2014, the changeover switch shall be arranged such that a fault will not result in the loss of both power supplies."

  13 The following new paragraph is added after paragraph 2.2.1, and the existing paragraph 2.2.2 is renumbered as paragraph 2.2.3:

  • "2.2.2 On ships constructed on or after 1 July 2014, the operation of the automatic changeover switch or a failure of one of the power supplies shall not result in loss of fire detection capability. Where a momentary loss of power would cause degradation of the system, a battery of adequate capacity shall be provided to ensure continuous operation during changeover."

  14 The existing paragraph 2.2.3 is deleted and the following new paragraphs are added after the renumbered paragraph 2.2.3:

  • "2.2.4 The emergency source of power specified in paragraph 2.2.1 above may be supplied by accumulator batteries or from the emergency switchboard. The power source shall be sufficient to maintain the operation of the fire detection and fire alarm system for the periods required under chapter II-1, regulations 42 and 43, of the Convention and, at the end of that period, shall be capable of operating all connected visual and audible fire alarm signals for a period of at least 30 min.

  • 2.2.5 On ships constructed on or after 1 July 2014, where the system is supplied from accumulator batteries, they shall be located in or adjacent to the control panel for the fire detection system, or in another location suitable for use in an emergency. The rating of the battery charge unit shall be sufficient to maintain the normal output power supply to the fire detection system while recharging the batteries from a fully discharged condition."

  15 In paragraphs 2.3.1.2, 2.3.1.3 and 2.3.1.5, the referenced standard "IEC 60092 505:2001" is replaced by "IEC 60092-504".

  16 In paragraph 2.5.1.3, after the second sentence, the following new sentence is added:

  • "In ships constructed on or after 1 July 2014, with a cargo control room, an additional indicating unit shall be located in the cargo control room."

  17 In paragraph 2.5.2, after the second sentence, the following new sentence is added:

  • "On ships constructed on or after 1 July 2014, detectors installed within cold spaces such as refrigerated compartments shall be tested using procedures having due regard for such locations.footnote


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