Quote:
Originally Posted by lwmcguire
With no current flow the GFCI shouldn't trip
Takes a ground fault
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Not the way you think. It can, and it did. I covered how and why in another thread.
I give credit to a cousin who’s an electrical engineer who had to show me how the hot lead doesn’t have to have any current at all for the GFIC to trip.
I had this issue, and indeed various GFIC I plugged into tripped even when I had van’s main breaker off.
A GFIC is designed to protect against ground fault, but also trips when it detects a difference in current between hot and neutral, and it doesn’t have to be on hot side. It’s hard to follow and harder to explain, but true.
P.S. — Current flows between neutral and ground wires, hence neutral and hot no longer in perfect balance, causing house GFIC to trip.
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