GFCI and an Open Ground
Given: A 120 VAC GFCI supplying power to a 30 AMP RV. The RV has one problem, the 3rd Prong Ground wire at the 30 AMP plug is not making connection. (The RV chassis is floating because there are no ot...
Forum Discussion
BFL13 wrote:
The GCFI "does not need a ground to function", but if you have a GFCI popping, ISTR you can stop that by snipping your shore cord's ground prong. (Not a good idea!)
How can both of those things be true?
Confusing to me also. I can see a non grounded GFCI functioning in a sticks and bricks built structure where there can be alternate paths to ground. Metal plumbing would obviously provide a path. But if an RV has an ungrounded frame sitting on rubber tires and wood/plastic blocks, how can you have a ground fault? For a ground fault to occur, there must be some path to ground for the stray current to drain off causing the current differential between hot and neutral.
Educate me.
