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F.E.A.S. Canister Fire Suppression System Failure

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Information:

In order to work on the fire detection panel of a dragline fitted with a FEAS Canister fire suppression system, a technician powered the system down by disconnecting the backup batteries and isolating the 240-volt supply. At this time the dragline lost power and upon investigation it was found that the FEAS canisters in the slip ring enclosure had discharged and an electrical flashover of the 6.6 KV slip rings to earth had occurred. Furthermore, the canisters had not discharged through the coolant in the correct manner but had burned holes in the sides of the canisters.



Organisation:

Department of Natural Resources and Mines

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Jurisdiction:

Relates to Queensland (QLD)

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Information:

PDF Document
Coverage:

Queensland

Author:

NRM-Q

Publisher:

Queensland Government

Published:

9 Mar 2003



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