| Objective: This Chapter outlines the minimum requirements for
machinery, which shall be in accordance with the requirements of a
Recognised Organisation. The Class Notation shall cover the minimum
aspects defined within this chapter even if the machinery is not
considered the primary means of propulsion.
|
7B.1 General Requirements
(1) For existing and new vessels, the machinery and its installation shall meet the
requirements of a Recognised Organisation and of SOLAS II-1/Part C Machinery installations and II-1/Part E - Additional requirements for periodically
unattended machinery spaces, so far as is reasonable and practicable to do so.
(2) In any case the intention shall be to achieve a standard of safety which is at
least equivalent to the standard of SOLAS. Equivalence may be achieved by
incorporating increased requirements to balance deficiencies and thereby achieve the
required overall standard.
(3) Where gas turbines are fitted, attention shall be paid to the guidance contained
within the IMO High Speed Craft Code, and installation shall be to the satisfaction
of the Administration.
(4) For vessels installed with high powered engines designed for short sprint speeds,
on a case by case basis the Administration may relax SOLAS II-1/26.11 to accommodate day tanks sized for maximum
continuous rating, and use the vessel’s cruising speed.
7B.2 Additional Equivalence Considerations
(1) None
7B.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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(a) determination of the ship type, machinery, electrical installations and
space(s) concerned;
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(b) identification of the prescriptive requirement(s) with which the
machinery and electrical installations will not comply;
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(c) 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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(d) 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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(e) 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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(f) technical justification demonstrating that the alternative design and
arrangements meet the safety performance criteria; and
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(g) risk assessment based on identification of the potential faults and
hazards associated with the proposal.