11.2 Fire mains and hydrants
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.370(93) – Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) – (Adopted on 22 May 2014) - Annex - Amendments to The International Code for The Construction and Equipment of Ships Carrying Liquefied Gases In Bulk (IGC Code) - Chapter 11 — Fire Protection and Extinction - 11.2 Fire mains and hydrants

11.2 Fire mains and hydrants

  11.2.1 Irrespective of size, ships carrying products that are subject to the Code shall comply with the requirements of regulation ll-2/10.2 of the SOLAS Convention, as applicable to cargo ships, except that the required fire pump capacity and fire main and water service pipe diameter shall not be limited by the provisions of regulations ll-2/10.2.2.4.1 and ll-2/10.2.1.3, when a fire pump is used to supply the water-spray system, as permitted by 11.3.3 of the Code. The capacity of this fire pump shall be such that these areas can be protected when simultaneously supplying two jets of water from fire hoses with 19 mm nozzles at a pressure of at least 0.5 MPa.

  11.2.2 The arrangements shall be such that at least two jets of water can reach any part of the deck in the cargo area and those portions of the cargo containment system and tank covers that are above the deck. The necessary number of fire hydrants shall be located to satisfy the above arrangements and to comply with the requirements of regulations ll-2/10.2.1.5.1 and ll-2/10.2.3.3 of the SOLAS Convention, with hose lengths as specified in regulation ll-2/10.2.3.1.1. In addition, the requirements of regulation ll-2/10.2.1.6 shall be met at a pressure of at least 0.5 MPa gauge.

  11.2.3 Stop valves shall be fitted in any crossover provided and in the fire main or mains in a protected location, before entering the cargo area and at intervals ensuring isolation of any damaged single section of the fire main, so that 11.2.2 can be complied with using not more than two lengths of hoses from the nearest fire hydrant. The water supply to the fire main serving the cargo area shall be a ring main supplied by the main fire pumps or a single main supplied by fire pumps positioned fore and aft of the cargo area, one of which shall be independently driven.

  11.2.4 Nozzles shall be of an approved dual-purpose type (i.e. spray/jet type) incorporating a shutoff.

  11.2.5 After installation, the pipes, valves, fittings and assembled system shall be subject to a tightness and function test.

Parent topic: Chapter 11 — Fire Protection and Extinction
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