I recently came across a customer that has had three (20A) Arc Fault Circuit Breaker failures (same circuit). Each time the AFCB was replaced, it would last about 6 months. At the time of the third failure, a faulty outdoor GFCI receptacle that wouldn't reset was located on the same circuit. The AFCB wouldn't reset with the defective GFCI. I have ruled out lightning and surge damage as the electrical service has premium lightning and TVSS protection with a grounding electrode impedance below 1 ohm. Has anyone heard of any interferrence problems when combining arc fault circuit breakers and ground fault circuit interrupters on the same circuit?
Protection Interferrence?
- Thread starter roylackey
- Start date
