i would wager that a perfect short across L1 & L2 , or perfect 'symetrical ground fault' from both to Grn that would leave a device set to trip @ 50ma untripped, while climbing into many 00000's of Amps would be hard even in a laboratory setting to create.
Whoa!
An L1 to L2 short no matter how perfect or imperfect will not (almost never) trigger the GFCI, low impedance, high impedance, arcing, or whatever.
I could recreate this is my backyard (but preferably yours) any dry day.
As for the symmetrical ground fault, I could do it in a lab with two closely matched power resistors. I would guess that I could do it with two christmas light bulbs and two three-way switches with their handles tied.
But it is a pointless experiment to me since Scott can do it for me in his head.
[This message has been edited by Dspark (edited 05-10-2001).]
