| Objective: This Chapter outlines the minimum requirements for
electrical, installations which shall be in accordance with the
requirements of a Recognised Organisation, and shall cover the
minimum aspects defined below. For sailing vessels, this shall also
cover the elements necessary to ensure safety of the vessel
including control of the sails, where appropriate.
|
8B.1 General Requirements
(1) The electrical equipment and its installation shall meet the standards of SOLAS
II-1/Part D - Electrical installations and
II-1/Part E - Additional requirements for
periodically unattended machinery spaces for cargo vessels, where appropriate, so
far as it is reasonable and practicable to do so.
(2) The emergency generator, if fitted, should be located above the
uppermost continuous deck but may be located below this deck provided it is
protected from the effects of fire and flooding. In all cases, the emergency
generator should be separated from main generators and main switchboard by a
division capable of ensuring its continued operation. The emergency generator should
be self-contained (independent of a sea water suction) and readily accessible from
the open deck.
(3) Cables and wiring serving essential or emergency power, lighting, internal
communications or signals shall be routed clear of galleys, machinery places of
Category A and their casings, spaces for storage of petrol, and other high-risk fire
areas.
(4) Where batteries are used for propulsion and/or electric power supply purpose
during ship operations, the Battery System shall consider the guidelines provided in
Annex A
8B.2 Additional Equivalence Considerations
(1) None
8B.3 Alternative Design and Arrangements
(1) Vessels may follow Section 1.9 on Alternative Design and Arrangements for this
chapter as allowed by SOLAS II-1/55.
(2) The engineering analysis required by 1.9(3) shall be prepared and
submitted to the Administration, based on the guidelinesfootnote and shall include, as a minimum, the following
engineering analysis elements:
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(c) determination of the ship type, machinery, electrical installations and
space(s) concerned;
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(d) identification of the prescriptive requirement(s) with which the
machinery and electrical installations will not comply;
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(e) identification of the reason the proposed design will not meet the
prescriptive requirements supported by compliance with other recognized
engineering or industry standards;
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(f) determination of the performance criteria for the ship, machinery,
electrical installation or the space(s) concerned addressed by the relevant
prescriptive requirement(s):
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(i) performance criteria shall provide a level of safety not inferior
to the relevant prescriptive requirements contained in SOLAS II-1 parts C, D and E; and
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(ii) performance criteria shall be quantifiable and measurable;
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(g) detailed description of the alternative design and arrangements,
including a list of the assumptions used in the design and any proposed
operational restrictions or conditions;
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(h) technical justification demonstrating that the alternative design and
arrangements meet the safety performance criteria; and
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(i) risk assessment based on identification of the potential faults and
hazards associated with the proposal.