BB_TX wrote:
I guess that is where I was losing it. The OP stated he did not have a ground at his power cord leading to a floating ground in the RV. And being an RV there is no other normal path to ground. But later posts stated a ground was not required to detect a neutral to ground fault in a GFCI. And I was lost from that point.
I think people were commenting on whether the GCFI device itself needed the ground wire routed to it to literally use in the circuit (it doesn't) versus whether a ground path is involved in the complete system (it is).