Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 1979 MODU Code – Code for the Construction and
Equipment of Mobile Offshore Drilling Units – Resolution A.414(XI) - Chapter 5 – Electrical Installations for all Types of
Units (See also 4.1) - 5.2 Main source of electrical power
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5.2 Main source of electrical
power
5.2.1
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.1 Every unit should be provided with a main source
of electrical power which should include at least two generating sets.
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.2 The power of these sets should be such that
it is still possible to ensure the functioning of the services referred
to in 5.1.1.1, except for services referred to in 1.3.14.2, In the
event of anyone of these generating sets being stopped.
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.3 Where transformers or converters constitute
an essential part of the supply system, the system should be so arranged
as to ensure the same continuity of the supply, as stated in 5.2.1.2.
5.2.2
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.1 A main electric lighting system which should
provide illumination throughout those parts of the unit normally accessible
to and used by personnel should be supplied from the main source of
power.
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.2 The arrangement of the main lighting system
should be such that a fire or other casualty in the space(s) containing
the main source of power including transformers, or converters if
any, will not render the emergency lighting system required by 5.3 inoperative.
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.3 The arrangement of the emergency lighting system
should be such that a fire or other casualty in the space(s) containing
the emergency source of power, including transformers, or converters
if any, will not render the main lighting system required by this
requirement inoperative.
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