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How is it possible to provide both GFCI and CAFCI protection for kitchen and laundry circuits?
Friday, August 31, 2018
The National Electric Code (NEC) has required both GFCI and CAFCI protection for laundry and kitchen circuits in a residence since the 2014 edition of the code. There are two ways you can do it:
- Install a Dual Functional Circuit Interrupter (DFCI)breaker, shown above, in the electric panel for the circuit. It provides both GFCI and CAFCI protection, along with the overcurrent protection of a standard circuit breaker. To read more about them, see our blog post ”What is a Dual Function Circuit Interrupter (DFCI)?”
- Install a CAFCI breaker for the circuit in the panel and a GFCI-receptacle at the first outlet in the circuit, which will provide GFCI-protection for all the downstream receptacles.
The cost of the equipment is about the same for either type of installation, but #2 makes it easier troubleshoot whether the defect causing a trip was an arc fault or a ground fault in the circuit.
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