2 Field of Application
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.668 – Alternative Arrangements For Halon Fire-extinguishing Systems In Machinery Spaces And Pump-rooms – (Adopted on 22 December 1994)Amended by MSC/Circular.728 - Annex - Guidelines for the Approval of Equivalent Water-Based Fire-extinguishing Systems as Referred to in SOLAS 74 for Machinery Spaces and Cargo Pump-rooms - Appendix B - Interim Test Method for Fire Testing Equivalent Water-Based Fire-Extinguishing Systems for Machinery Spaces of Category A and Cargo Pump-Rooms - 2 Field of Application

2 Field of Application

 The test method is applicable for water-based fire-extinguishing systems which will be used as alternative fire-extinguishing systems as required by SOLAS regulation II-2/7. For the installation of the system, nozzles shall be installed to protect the entire hazard volume (total flooding). The installation specification provided by the manufacturer should include maximum nozzle spacing, maximum enclosure height, distance of nozzles below ceiling, maximum enclosure volume and maximum ventilation condition.


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