"Jack Hammer" wrote in message
...
On Apr 2, 5:12 pm, "Dave" wrote:
"Tony Hwang" wrote in message

...



Dave wrote:
wrote in message
. ..
On Fri, 2 Apr 2010 14:06:37 -0500, wrote:

....

Floating ground... Okay. That would fit with what I saw up in the
attic,
about the wiring used in the house. sigh At least it's nothing really
wierd. Always thought I ought to rewire the house, just didn't want
to
tackle that project. Wondering if I can live with it...

Many thanks.

Dave

I once worked for a photographer. He was in his second
studio. The original one burned down. Guess who had floating
grounds

Hmm. Okay, so how could floating grounds result in your house burning
down.
Seriously. Never heard of that.

Dave

Hi,
If you know what GFCI does, then your question is answered.
Ground wire is for extra safety.

Hey Tony,

No idea how a GFCI works, but I understand it shuts off the power really
fast upon sensing evidence of a short to ground, or some such. Can you go
a
little further for me?

Thanks,

Dave

A GFCI senses the difference between the current going to the load and
the current leaving the load.
If the current is not the same then it assumes the current is going
through you.
It then turns the current off.

Aah. Thank you. Much appreciated...

Dave