2.2.1
Emergency fire pumps
2.2.1.1 Capacity of the pump
The capacity of the pump shall not be less than 40% of the total
capacity of the fire pumps required by regulation
II-2/10.2.2.4.1 of the Convention and in any case not less
than the following:
| .1
|
for passenger ships less than 1,000 gross tonnage and
for cargo ships of 2,000 gross tonnage and upwards; and
|
25 m3/h
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| .2
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for cargo ships of less than 2,000 gross tonnage
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15 m3/h
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2.2.1.2 Pressure at hydrants
When the pump is delivering the quantity of water required by
paragraph 2.2.1.1, the pressure at any hydrants shall be not less
than the minimum pressure required by chapter
II-2 of the Convention.
2.2.1.3 Suction heads
The total suction head and the net positive suction head of
the pump shall be determined having due regard to the requirements
of the Convention and this chapter on the pump capacity and on the
hydrant pressure under all conditions of list, trim, roll and pitch
likely to be encountered in service. The ballast condition of a ship
on entering or leaving a dry dock need not be considered a service
condition.
2.2.2
Diesel engines and fuel
tank
2.2.2.1 Starting of diesel engine
Any diesel-driven power source for the pump shall be capable
of being readily started in its cold condition down to the temperature
of 0°C by hand (manual) cranking. Where ready starting cannot
be assured, if this is impracticable, or if lower temperatures are
likely to be encountered, and if the room for the diesel driven power
source is not heated, electric heating of the diesel engine cooling
water or lubricating oil system shall be fitted, to the satisfaction
of the Administration. If hand (manual) starting is impracticable,
the Administration may permit compressed air, electricity, or other
sources of stored energy, including hydraulic power or starting cartridges
to be used as a means of starting. These means shall be such as to
enable the diesel-driven power source to be started at least six times
within a period of 30 min and at least twice within the first 10 min
2.2.2.2 Fuel tank capacity
Any service fuel tank shall contain sufficient fuel to enable
the pump to run on full load for at least 3 h and sufficient reserves
of fuel shall be available outside the machinery space of category
A to enable the pump to be run on full load for an additional 15 h.