7.2.1 An
electrical insulation resistance test is to be made on the electrical
equipment and cables. The installation may be sub-divided or equipment,
which may be damaged, disconnected for the purpose of this test.
7.2.2 The
fittings on the main switchboard, section boards and distribution
boards, where fitted, are to be examined and over-current protective
devices and fuses inspected to verify that they provide suitable protection
for their respective circuits.
7.2.3 Circuit-breakers,
where fitted, are to be tested, so far as is practicable, to verify
that protective devices including preference tripping relays, if fitted,
operate satisfactorily.
7.2.4 The
electric cables, where fitted, are to be examined, so far as is practicable,
without undue disturbance of fixtures or casings unless opening up
is considered necessary as a result of observation or of the tests
required by Pt 1, Ch 3, 7.2 Complete Surveys 7.2.1.
7.2.5 Navigation
light indicators, where fitted, are to be tested under working conditions,
and correct operation on the failure of supply or failure of navigation
lights verified.
7.2.6 A
General Examination of the electrical equipment, as appropriate, in
areas which may contain flammable gas or vapour and/or combustible
dust is to be made to ensure that the integrity of the safe type electrical
equipment has not been impaired owing to corrosion, missing bolts,
etc. and that there is not an excessive build-up of dust on or in
dust protected electrical equipment. Cable runs are to be examined
for sheath and armouring defects, where practicable, and to ensure
that the means of supporting the cables are in good order. Tests are
to be carried out to demonstrate the effectiveness of bonding straps
for the control of static electricity. Alarms and interlocks associated
with pressurized equipment or spaces are to be tested for correct
operation.