[fintstone]

Originally Posted by jyl

Electricians -

I have a receptacle circuit in one room that is not grounded (because it is powered by an old lighting circuit - weirdness of 100 y/o house). I've put a GFCI receptacle in first position on that circuit, to get some protection.

When I add receptacles to the adjacent room, I'll be able to pull a ground wire from the adjacent room circuit to serve as the ground for this currently ungrounded circuit. I read NEC, it seems to permit two circuits to share the same ground conductor, if the circuits originate in the same enclosure, which these do.

So . . . sound ok?

I would say that as long as both receptacles are the same 15A (not one 15 and one 25), you are ok, but if I were pulling a ground from the adjoining room, I would just pull the power from there as well while I was pulling wires (and disconnect it form the light), keeping outlets on the outlet circuits and lights on a lighting circuit. Then you can use the single GFCI to protect both circuits.