Lars, father in law had an old barn that was wired with 12-2 wire ( no ground) and had 2 prong plugs in it. He was constantly cutting the Ground Lug off of tools and extension cords to use them in the old sockets. When sockets would fail he would install a new 3 prong socket and leave the ground OPEN so the extension cords could be used without cutting...... That works, but didnt solve a potential problem...
I didnt want to stretch a ground wire all around the place, so i ended up getting 4 GFI plugss and mounted them to the wall below the breaker box... I pulled out the 4 - two wire cables that feed the N- S- E- W walls and installed the on the OUTLETS of the 4 GFI... I then put 4 NEW 12-2 with ground wires from the 4 GFI to the 4 breakers inside the breaker box.. Now you have a GROUND to the GFI and it will protect everything down stream on the NO GROUND system.. I had stickers on each receptical that had 3 prong sockets and said " no ground wire"... but they WILL TRIP of something happens.. Just no ground wire.................... I thought that was a good compromise compared to not having an original ground.
Edited by steve(ill) - 07 Aug 2023 at 2:37pm
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