In addition to complying with section 5.4, the emergency
source of power should provide:
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.1 For a period of 18 hours, emergency lighting
at the steering gear;
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.2 For a period of 18 hours:
unless they have
an independent supply from an accumulator battery suitably located
for use in an emergency and sufficient for the period of 18 hours;
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.3 For the period of 30 min or a lesser period
as permitted by SOLAS regulation II-1/29.14, the steering gear.