Archive for October 25th, 2010

RV Electrical Safety: Part X – GFCI Testing

Oct 25th, 2010 | By
RV Electrical Safety: Part X – GFCI Testing

A perfectly isolated electrical appliance should have exactly the same amount of electrical current going out and coming back in. For example, if an applicance draws 7.000 amperes of current from the black/hot wire, then exactly 7.000 amperes of return current should be coming back in the white wire. However, if there’s any secondary connection to the earth/ground from something like our happy camper poking a piece of metal in a socket while standing on the ground, there will now be more current going out the black wire than is returning from the white wire.