Section
9 Starting arrangements
9.1 Dead ship condition starting
arrangements
9.1.1 Means are to be provided to ensure that machinery can be brought into
operation from the dead ship condition without external aid.
9.1.2 Dead ship condition for the purpose of Pt 10, Ch 1, 9.1 Dead ship condition starting arrangements 9.1.1 is to be understood to mean a condition under which
the main propulsion plant and auxiliaries are not in operation. In restoring propulsion,
no stored energy for starting and operating the propulsion plant is assumed to be
available. Additionally, neither the main source of electrical power nor other essential
auxiliaries is assumed to be available for starting and operating the propulsion plant.
9.1.3 Where
the emergency source of power is an emergency generator which fully
complies with the requirements of Pt 16, Ch 2 Electrical Engineering, this generator may be used for restoring operation of
the main propulsion plant, boilers and auxiliaries where any power
supplies necessary for engine operation are also protected to a similar
level as the starting arrangements.
9.1.4 Where there is no emergency generator installed or an emergency generator
does not comply with Pt 16, Ch 2 Electrical Engineering, the arrangements for bringing main and
auxiliary machinery into operation are to be such that the initial charge of starting
air or initial electrical power and any power supplies for engine operation can be
developed on board the craft without external aid. If, for this purpose, an emergency
air compressor or an electric generator is required, these units are to be powered by a
hand-starting oil engine or a hand-operated compressor. The arrangements for bringing
main and auxiliary machinery into operation are to have capacity such that the starting
energy and any power supplies for engine operation are available within 30 minutes of a
dead ship condition.
9.2 Air receiver capacity
9.2.1 Where
the main engine is arranged for air starting the total air receiver
capacity is to be sufficient to provide without replenishment, not
less than 12 consecutive starts of the main engine, alternating between
ahead and astern if of the reversible type and not less than six consecutive
starts if of the non-reversible type. At least two air receivers of
approximately equal capacity are to be provided. For scantlings and
fittings of air receivers, see
Pt 15, Ch 4 Pressure Plant.
9.2.2 For multi-engine installations, the number of starts required for each
engine are to be as follows:
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Two engines through common reduction gearing: 6 starts per engine for
fixed pitch propeller/propellers; 3 starts per engine for controllable pitch
propeller/propellers.
-
For all other types
of multi-engine installations three consecutive starts per engine
are required.
9.2.3 No engine is to have fewer than 3 starts for any arrangement. For electric propulsion
arrangements, a minimum of 3 starts per engine with a minimum capacity of 12 starts of
the largest start air consumption engine in total are required.
9.2.4 Each air
receiver is to be fitted with a drain arrangement at its lowest part,
permitting oil and water to be blown out.
9.2.5 Each receiver
which can be isolated from a relief valve is to be provided with a
suitable fusible plug to discharge the contents in case of fire. The
melting point of the fusible plug is to be approximately 150oC, see also
Pt 15, Ch 4, 9.2 Receivers containing pressurised gases.
9.2.6 Receivers
used for the storage of air for the control of remotely operated valves
are to be fitted with relief valves and not fusible plugs.
9.3 Electric starting
9.3.1 Where main engines are fitted with electric starters, two batteries are to
be fitted. Each battery is to be capable of starting the engines when cold and the
combined capacity is to be sufficient without recharging to provide the number of starts
of the main engines as required by Pt 10, Ch 1, 9.2 Air receiver capacity . In
other respects batteries are to comply with the requirements of Pt 16, Ch 2, 12 Batteries.
9.3.2 Electric
starting arrangements for auxiliary engines are to have two separate
batteries or be supplied by separate circuits from the main engine
batteries when such are provided. Where one of the auxiliary engines
only is fitted with an electric starter one battery will be acceptable.
9.3.3 The combined
capacity of the batteries for starting the auxiliary engines is to
be sufficient for at least three starts for each engine.
9.3.4 Engine
starting batteries are to be used only for the purposes of starting
the engines and for the engines’ own control, alarm, monitoring
and safety arrangements. Means are to be provided to ensure that the
stored energy in the batteries is maintained at a level required to
start the engines as defined in Pt 10, Ch 1, 9.3 Electric starting 9.3.1 and Pt 10, Ch 1, 9.3 Electric starting 9.3.3.
9.3.5 Where
engines are fitted with electric starting batteries, an alarm is to
be provided for low charge battery level.
9.4 Additional requirements for electric starting for non-SOLAS cargo vessels
9.5 Starting of the emergency source of power
9.5.1 Emergency
generators are to be capable of being readily started in their cold
conditions down to a temperature of 10oC. If this is impracticable,
or if lower temperatures are likely to be encountered, consideration
is to be given to the provision and maintenance of heating arrangements,
so that ready starting will be assured.
9.5.2 Each emergency
generator that is arranged to be automatically started is to be equipped
with an approved starting system having two independent sources of
stored energy, each of which is sufficient for at least three consecutive
starts. When hand (manual) starting is demonstrated to be effective,
only one source of stored energy need be provided. However, this
source of stored energy is to be protected against depletion below
the level required for starting.
9.5.3 Provision
is to be made to maintain continuously the stored energy at all times,
and for this purpose:
-
Electrical and hydraulic
starting systems are to be maintained from the emergency switchboard.
-
Compressed air starting
systems may be maintained by the main or auxiliary compressed air
receivers, through a suitable non-return valve, or by an emergency
air compressor energised by the emergency switchboard.
-
All these starting,
charging and energy storing devices are to be located in the emergency
generator room. These devices are not to be used for any purpose other
than the operation of the emergency generator.
9.5.4 When automatic
starting is not required by the Rules and where it can be demonstrated
as being effective, hand (manual) starting is permissible, such as
manual cranking, inertial starters, manual hydraulic accumulators,
powder charge cartridges.
9.6 Engine control, alarm monitoring and safety system power supplies
9.6.1 Power
supplies are to be arranged so that power for electrically powered
control, alarm monitoring and safety systems required for engine starting
and operation will remain available in the event of a failure. Power
is to remain available to permit starting attempts for the number
of starts specified by this Section for each source of stored energy.
9.6.3 An alarm
is to be activated in the event of failure of a power supply and,
where applicable, low battery charge level. Manual power supply changeover
facilities are permitted.
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