Blown GFC breakers
will a surging Champion 3500 generator blow you circuit breakers in your TT ???? Maybe I should have connected a surge protector to my genny. This happened to me years ago.
Forum Discussion
DrewE wrote:ktmrfs wrote:
2) A neutral/ground fault. If a GFCI detects ground and neutral legs are connected they trip. Code says ground and neutral can only be bonded at the panel. So for about the last 10 years or more GFCI will trip on this fault.
I believe that's been a part of the code (more specifically, the UL requirements for GFCIs) for something closer to 30 years. I've had a tough time sussing out exactly when the actual requirements came into effect, but it has been decades.
A neutral/ground fault causes a a current imbalance at the outlet due to some of the current that should go thru the neutral pin now goes thru the ground pin leading to that 5 ma or greater hot/neutral difference that causes a trip. That’s where the name ground fault circuit interrupter, GFCI, comes from.
