Statutory Documents - MCA Publications - LY2 - The Large Commercial Yacht Code - 15A Fire Appliances - Vessels of Less than 500GT - 15A.2 Specific Requirements - 15A.2.3 Fire main and hydrants
15A.2.3 Fire main and hydrants
15A.2.3.1 A fire main, water service pipes and fire hydrants should be fitted.
15A.2.3.2 The fire main and water service pipe connections to the hydrants should be sized for the maximum discharge rate of the pump(s) connected to the main.
15A.2.3.3 The fire main, water service pipes and fire hydrants should be constructed such that they will:
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.1 not be rendered ineffective by heat;
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.2 not readily corrode; and
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.3 be protected against freezing.
15A.2.3.4 When a fire main is supplied by 2 pumps, 1 in the machinery space and 1 elsewhere, provision should be made for isolation of the fire main within the machinery space and for the second pump to supply the fire main and hydrants external to the machinery space. Isolation valve(s) should be manually operated valves fitted outside the machinery space in a position easily accessible in the event of a fire.
15A.2.3.5 The fire main should have no connections other than those necessary for fire fighting or washing down.
15A.2.3.6 Fire hydrants should be located for easy attachment of fire hoses, protected from damage and distributed so that a single length of the fire hoses provided can reach any part of the vessel.
15A.2.3.7 Fire hydrants should be fitted with valves that allow a fire hose to be isolated and removed when a fire pump is operating.
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