(1) The minimum number and type of fire pumps
to be fitted shall be as follows:
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(a) one power pump not dependent upon the main
machinery for its motive power; or
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(b) one power pump driven by main machinery provided
that the propeller shafting can be readily disconnected or provided
that a controllable pitch propeller is fitted.
(2) Sanitary, bilge, ballast, general service
or any other pumps may be used as fire pumps if they comply with the
requirements of this chapter and do not affect the ability to cope
with pumping of the bilges. Fire pumps shall be so connected that
they cannot be used for pumping oil or other flammable liquids.
(3) Centrifugal pumps or other pumps connected
to the fire main through which backflow could occur shall be fitted
with nonreturn valves.
(4) Vessels not fitted with a power-operated emergency
fire pump and without a fixed fire-extinguishing system in the machinery
spaces shall be provided with additional fire-extinguishing means
to the satisfaction of the Administration.
(5) Where fitted, emergency power-operated fire
pumps shall be independently driven self-contained pumps either with
their own prime mover and fuel supply fitted in an accessible position
outside the compartment which contains the main fire pumps, or be
driven by a self-contained generator which may be an emergency generator
of sufficient capacity and which is positioned in a safe place outside
the engine room and preferably above the working deck.
(6) For any emergency fire pump, where fitted,
the pump, sea-suction valves and other necessary valves shall be operable
from outside compartments containing main fire pumps in a position
not likely to be cut off by a fire in those compartments.
(7) The total capacity (Q) of main
power-operated fire pumps shall be at least:
where L, B and D are
in metres.
(8) Where two independent power-operated fire
pumps are fitted, the capacity of each pump shall not be less than
40% of the quantity required by paragraph (7).
(9) When main power fire pumps are delivering
the quantity of water required by paragraph (7) through the fire main,
fire hoses and nozzles, the pressure maintained at any hydrant shall
be not less than 0.25 N/mm2.
(10) Where power-operated emergency fire pumps
are delivering the maximum quantity of water through the jet required
by regulation 37(1), the pressure
maintained at any hydrant shall be to the satisfaction of the Administration.