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In
each cargo hold, giving audible and visual alarms, one when the water
level above the inner bottom in any hold reaches a height of 0.5m and
another at a height not less than 15% of the depth of the cargo hold
but not more than 2.0 m. The water level detectors shall be fitted in
the aft end of the cargo holds. For cargo holds which are used for
water ballast, an alarm overriding device may be installed. The
visual alarms shall clearly discriminate between the two different
level detectors in each hold.
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In
any ballast tank forward of the collision bulkhead require to give an
audible and visual alarm when the liquid in the tank reaches a level
not exceeding 10% of the tank capacity. An alarm overriding device
may be installed to be activated when the tank is in use.
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In
any dry or void space other than a chain cable locker, any part of
which extends forward of the foremost cargo hold, giving an audible
and visual alarm at a water level of 0.1 m above the deck. Such
alarms need not be provided in enclosed spaces the volume of which
does not exceed 0.1% of the ship’s maximum displacement volume.
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The
audible and visual alarms shall be located on the navigation bridge.
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