In addition to complying with 5.3,
the emergency source of power should provide:
-
.1 For a period of 18 hours, emergency lighting
at the steering gear;
-
.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;
-
.3 For the period of 10 minutes the steering gear
where it is required to be so supplied by 7.5.1.3.