What Is Electrical Discrimination?


Electrical discrimination is the selection of shielding devices so that the device adjacent to a fault will function rather than any upstream device. The main reason is to guarantee that the fault is cut off and supply is maintained to other parts of the system with no interruption.
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1 Additional Answer
Electrical discrimination is the selection of a protective device like a fuse closer to an electrical fault rather than a bigger circuit breaker upstream. The purpose is to ensure that disruption to other circuits is stopped by knocking out the fuse hence supply is maintained. Electrical discrimination applies to over-current protective devices and residual current devices.
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