2017 Precept Delivery Checklist Generator compartment and Circuit breaker

Electrical
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Switchboard Arc fault test Sydney NESMA Ausgrid test station 2014

Arc fault test of a sample Form 3B switchboard compartment at 400VAC.
Prospective fault level = 50kA calibrated
Arc Fault Measured = 30kA.
Initiated by fuse wire on line side of MCCB.

Fault disconnected at 200mS by operators.

Sydney Australia 25/09/2014 at National Electrical Switchboard Manufacturers Association conference day at the Ausgrid Testing Station Lane Cove.
Damage was severe, but confined to the individual circuit breaker compartment.
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