This answer is based on the 2017 NEC. A. Yes, it does. If the circuit’s overcurrent protection device exceeds 800A, the conductor ampacity ― after the application of ambient temperature correction ...
Overcurrent protection of conductors is an idea so simple that it is almost self-evident. Excessive current in a conductor results in rapid temperature rise, which damages insulation and creates ...
For a PDF verion of this article, click here. Where resettable overcurrent protection is a requirement, PolySwitch polymeric positive temperature coefficient (PPTC) devices offer a highly effective ...
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