Failed or Absent Defences » LTA isolation hardware

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Information

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Mine Type:

Surface Mine

Published:

Aug 6, 2002

Failure Of An Isolation Device

A plant operator isolated the energy source to a pug mill to carry out the daily cleaning task. After attaching his pad lock and personal ...

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Information

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Mine Type:

Surface Mine

Published:

Oct 24, 2002

Trip Switch Defeated On Pug Mill Chamber

Recent inspections at four separate quarries identified that safety devices (trip switches) intended to stop pug mill augers rotating when the ...

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Information

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Mine Type:

Any Mine Type

Published:

Jan 28, 2004

Transformer Primary Protection Fails To Isolate Fault

A plant operator received a severe electric shock as he was working to replace the lid on a cable pit. The cable pit housed consumers mains ...

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Information

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Mine Type:

Surface Mine

Published:

Oct 31, 1997

Near Miss Electrocution

A contract fitter engaged in the repair of a dragline lower roller path entered the tub 22KV cable connection chamber with the power still ...

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