7.1 The electrical power supplies in a Class INF
1 ship shall be to the satisfaction of the Administration.
7.2 In Class INF 2 and 3 ships:
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.1 an alternative source of electrical power,
complying with the requirements of the international standards acceptable
to the Organizationfootnote, shall be provided so
that damage involving the main supply would not affect the alternative
source; and
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.2 the power available from the alternative source
shall be sufficient to supply the following services for at least
36 h:
7.3 In a Class INF 3 ship, the alternative source
referred to in 7.2.1 shall be located outside the extent of any damage
envisaged under chapter 2.