I wasnt saying that your idea wouldnt offer protection, I was saying that it wouldnt work without cinstant tripping....I just didn't think I would have to explain myself. Every electrician knows that gfci protection will trip out a citcuit where devices that we use are installed on(ballasts motors). If a light is scheduled to come on at a given time everyday and it doesn't 10% of the time issues will occur. Reliability is not an issue qith a ground. Supply the area with grounded circuits then offer gfci protection at the device that needs it.
Do u want me to be more specific?
No Worries, Yes, something is lost in the discussion when it is in written form.
But actually, your first post directed towards me absolutely did insinuated my idea wouldn't offer protection. Remember? You asked where is the gfci going to "magically" get it's ground from? No mention of tripping until the second post, And my reply to the second post was that is a good discussion.
My guess is considering there is no equipment grounding conductor to actually leak the current to, and with advances in gfci noise rejecting circuitry, If using a quality gfci product his nuisance trips would be minimized.
Anyway, Of course I get your point about needing egc's. But it has been established before I ever even posted that the OP will NOT be adding an egc (for whatever reason). So that leaves him with either at least trying a gfci device for some added safety, or just leave it running the way it is now and hope he doesn't find himself stuck between potential, and a return path.
Or, another idea you had that I didn't see a reply to was moving the extension cord to a properly grounded outlet somewhere else. That would be good. But, going unanswered, I guess that wasn't an option for him either...