"François Yves Le Gal" wrote in
message

On Sun, 19 Mar 2006 10:31:40 -0500, "Robert Morein"
wrote:

The GFCI does not require the device to be grounded.

A GFCI i- for ground-fault circuit-interrupter - s a
friggin' device, not a norm. You may only use one if you
don't have a properly grounded mains circuit.

GFCIs are routinely used in the US on properly grounded mains circuits. For
example, GFCIs are required on all outlets that are within touching
distances of a sink (I think that's 6'), and they're required on all outlets
in a garage that are less than 8' above the floor.

If you live in the US of A, check the National Electrical
Code for proper info.

Agreed.

BTW, if an equipment has been designed for 2+1 grounded
operation, it's particularly stupid and dangerous to use
a cheater.

Totally agreed. The best thing to do about ground loops is to cure them at
their source.