I installed a 240 volt 50 amp R.V. outlet to the 2017 N.E.C. . The R.V. is a 2004 model. The manufacturer is out of business. There is a bare copper bond/ground wire, #8, that goes from the ground bus in the R. V. electrical panel straight out to a compartment in the nose of the unit. Therein is located a large bus bolted to the frame of the
R.V.. This is for the 12 volt lighting system and all the neutrals from the transformer are tied into this bus--as is the ground/bond wire from the electrical panel. If I install the correct 50 amp GFI breaker, it trips instantly because of this arrangement. With a standard, non-GFI breaker, all is fine. All the R.V. parks I've stayed at do not use 50 amp GFI breakers. I'm between a rock and a hard spot. Do I leave a non-GFI breaker in place--or do I try to modify the R.V. so the GFI breaker will work? I would seem to me that if I modify the R.V. I would end up taking all liability for it if it creates a secondary problem or a fire. But no GFI? Help.