5.1 Machinery Installations
(1) Every ship to which this Code applies shall also comply with the applicable
requirements of SOLAS Chapter II-1, Part C, with respect to machinery installations.
(2) 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.
(3) Vessels with garage spaces shall have the space’s drainage or bilge system sized
to remove no less than 125% of the combined capacity of both the water-spraying
system pumps and the required number of fire hose nozzles, taking into account the
guidelines developed by the IMOfootnote. The drainage system valves shall be operable from
outside the protected space at a position in the vicinity of the extinguishing
system controls. If this is not possible, the adverse effect upon stability of the
added weight and free surface of water shall be taken into account to the extent
deemed necessary by the Administration. Such information shall be included in the
stability book.
5.2 Electrical Installations
(1) Every ship to which this Code applies shall also comply with the applicable
requirements of SOLAS Chapter II-1, Part D, with respect to electrical installations.
(2) Where batteries are used for propulsion and/or electric power supply purpose
during ship operations, The design and operation of the battery system shall
consider the guidelines provided in Annex A
5.3 Periodically Unattended Machinery Spaces
(1) Whilst nothing in this Code precludes ships to which the Code applies from
being optionally compliant with the requirements for periodically Unmanned
Machinery Spaces (UMS), such a ship shall not operate in this mode whilst in
service as a Code vessel, provided that when on transitional voyages without
passengers such ships may operate in the UMS mode subject to the approval of the
Administration.
(2) Every ship to which this Code applies and which complies with the periodically
unattended machinery space standards in accordance with Section (1) also comply with
the applicable requirements of Chapter II-1, Part E of SOLAS, with respect to electrical
installations.
5.4 Additional Equivalence Considerations
(1) None
5.5 Alternative Design and Arrangements
(1) Vessels may follow Section 1.10 on Alternative Design and Arrangements for
this chapter as allowed by SOLAS II-1 Regulation 55.
(2) The engineering analysis required by 1.10(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.