Section
12 Requirements for small craft which are not required to comply
with the HSC Code
12.1 General
12.1.1 The requirements of this Section replace Sections Pt 15, Ch 3, 3.2 Fuel oil storage arrangements to
Pt 15, Ch 3, 3.4 Unattended machinery and Pt 15, Ch 3, 4 Fuel oil systems, Pt 15, Ch 3, 5 Low flash point fuels, Pt 15, Ch 3, 6 Lubricating/hydraulic oil systems and Pt 15, Ch 3, 7 Engine cooling water systems of this Chapter, see also
Pt 15, Ch 1, 15 Requirements for small craft which are not required to comply with the HSC Code.
12.2 Fuel oil system
12.2.1 Where
a power driven fuel oil transfer pump is fitted, it is to be capable
of being stopped from a position outside the space which will always
be accessible in the event of fire occurring in the compartment in
which the pump is situated, as well as from the compartment itself.
12.2.2 Where
a power driven pump is necessary for transferring fuel oil, a standby
pump is to be provided and connected ready for use.
12.2.3 Where
a fuel oil booster pump is fitted, a standby pump is to be provided.
The standby pump is to be connected ready for immediate use.
12.3 Separate fuel oil tanks
12.3.1 Except
for very small tanks separate fuel oil tanks are to be not less than
3 mm in thickness. The seams are to be welded or brazed. Steel tanks
are to be protected from corrosion.
12.3.2 Before
installation, all tanks are to be tested by a head of water equal
to the maximum to which the tanks may be subjected, but not less than
2,5 m above the crown of the tank.
12.3.3 Separate
fuel oil tanks are to be securely fixed in position, and located as
remote as practicable from exhaust manifolds and exhaust pipes or
other hot surfaces and not above any electrical apparatus. Where this
cannot be avoided, a drip tray is to be fitted under the tank and
extended sufficiently to catch any drips from fittings attached to
the tank.
12.3.4 Fuel
oil tanks are not to be fitted above or adjacent to oil fired heaters,
cooking stoves, equipment using naked flames or electrical equipment
unless this is suitably constructed or enclosed.
12.4 Fuel oil filling
12.4.1 The
filling pipe is to be of metallic construction and is to be a permanent
fixture led from the deck and secured to the tank by an approved connection.
A screwed cap and name plate inscribed 'Fuel Oil' is to be provided
at the filling point.
12.4.2 Flexible hoses are not permitted as filling pipes. In composite craft short
lengths may be employed at the deck connection to accommodate any movement between the
tank and the deck fitting.
12.5 Fuel oil supply
12.5.1 Provision
is to be made for efficient filtration of the fuel oil supply to the
engine.
12.6 Fuel oil valves and cocks
12.6.1 Outlet
valves or cocks are to be fitted to all deep tanks. The valves are
to be fitted directly to the tank plating and are to be capable of
being closed locally and from positions which will always be readily
accessible in the event of fire.
12.6.2 Valve
covers are to be so constructed that they will not become slack when
the valves are operated.
12.6.3 Heat
sensitive materials are not to be used in the construction of valves
and cocks.
12.6.4 Where
drain cocks or valves are fitted to fuel oil tanks they are to be
of the self-closing type and suitable provision is to be made for
collecting the oil discharge.
12.7 Flexible hoses for fuel oil systems
12.7.1 Where
necessary, flexible pipes of approved type may be used as short joining
lengths to the engine.
12.8 Pipe joints for fuel oil systems
12.8.1 Where
flanged joints are used the jointing material is to be impervious
to oil. Cone type joints and approved types of compression fittings
may be permitted for pipes having a bore not exceeding 40 mm.
12.8.2 Soft
solder is not to be used for attaching pipe fittings.
12.9 Engine cooling system
12.9.1 Where
sea water is used for the direct cooling of the engine, an efficient
strainer which can be cleared from inside the craft is to be fitted
between the sea inlet valve and the pump.
12.9.2 Means
are to be provided for cleaning the strainer without interruption
to the cooling water supply, where necessary.
12.9.3 Means
are to be provided for indicating the temperature of the engine cooling
media.
12.9.4 Alarms
for the engine cooling water system are to be provided in accordance
with Pt 10 Prime Movers.
12.9.5 A standby
cooling water pump is to be provided. The standby pump is to be connected
ready for immediate use.
12.10 Lubricating oil system
12.10.1 Where
the lubricating oil for main propelling engines is circulated under
pressure, provision is to be made for the efficient filtration of
the oil.
12.10.2 Where
necessary, flexible pipes of approved type may be used as short joining
lengths to the engine.
12.10.3 In
general, joints are to be of the flanged type with jointing materials
which are impervious to oil. Cone type joints and approved types of
compression fittings may be permitted for pipes having a bore not
exceeding 40 mm.
12.10.4 Soft
solder is not to be used for attaching pipe fittings.
12.10.5 Means
are to be provided for indicating the lubricating oil pressure.
12.10.6 Alarms
for the lubricating oil systems are to be provided in accordance with Pt 10 Prime Movers.
12.10.7 Where
the output of the main engine exceeds 500 kW, a standby lubricating
oil pump is to be provided. The standby pump is to be connected ready
for immediate use.
12.11 Multi-engined craft
12.11.1 This
Section is applicable to craft that have multi-engine installations
for propulsion purposes.
12.11.2 Where each main engine has its own fuel oil booster pump, lubricating oil
and cooling water pump and the craft can navigate and manoeuvre safely under all
conditions of service with one of the main engines out of action, the following are not
required:
-
Standby fuel oil
transfer pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.2.
-
Standby fuel oil
booster pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.3.
-
Standby cooling
water pump stipulated in Pt 15, Ch 3, 12.9 Engine cooling system 12.9.5.
-
Standby lubricating
oil pump stipulated in Pt 15, Ch 3, 12.10 Lubricating oil system 12.10.7.
12.12 Craft having restricted services G1 to G2A
12.12.1 If
the craft has a service area restriction notation G1 to G2A, the following are not required:
-
Standby fuel oil
transfer pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.2.
-
Standby fuel oil
booster pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.3.
-
Standby cooling
water pump stipulated in Pt 15, Ch 3, 12.9 Engine cooling system 12.9.5.
-
Standby lubricating
oil pump stipulated in Pt 15, Ch 3, 12.10 Lubricating oil system 12.10.7.
-
Standby pneumatic
air compressor stipulated in Pt 15, Ch 3, 8.2 Compressors and reducing valves/stations 8.2.1.
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