15A.2.4.1 Fire hoses should not exceed 20 metres
in length, and generally, the diameter for use with a powered pump
should not be less than 38mm.
15A.2.4.2 Fire hoses and associated tools and
fittings should be kept in readily accessible and known locations
close to the hydrants or connections on which they will be used. Hoses
supplied from a powered pump should have jet/spray nozzles (incorporating
a shut-off facility) of diameter 19mm, 16mm or 12mm depending on fire
fighting purposes. For accommodation and service spaces, the diameter
of nozzles need not exceed 12mm. For machinery spaces and exterior
locations, the nozzle size should be as to obtain the maximum discharge
possible from two jets at the pressure referred to in 15A.2.2.1, from
the smallest pump.
15A.2.4.3 Hydrants or connections in interior
locations on the vessel should have hoses connected at all times.
For use within accommodation and service spaces, proposals to provide
a smaller diameter of hoses and jet/spray nozzles will be considered.
15A.2.4.4 The number of fire hoses and nozzles
provided should correspond to the functional fire safety requirements,
but be at least 3.