Metro Electric - What is the difference between GFCI and AFC....

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Metro Electric Los Angeles Electrical Contractor, Licensed Electrician

electrical service installation

Common Electrical Problems

What is the difference between GFCI (ground fault circuit interrupter) and AFC (arc fault circuit interrupter)?

GFCI receptacles and breakers turn themselves off in the event of a ground fault. Meaning that if a path to ground exists other than the designed grounding system,(i.e. a person submerged in water, or holding a copper pipe) the circuit will turn off. An AFCI receptacle or breaker turns itself off in the event of an arc. Like if a person were to drive a nail into a wall damaging the wire inside of that wall. This type of protection prevents fires and is required by code in certain applications.

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