On Feb 26, 5:32*pm, "
wrote:
On Sun, 26 Feb 2012 17:27:42 -0500, "Ralph Mowery"









wrote:

"Tony Hwang" wrote in message
...

Hi,
I always have Simpson 260 handy working on problem like this. Fluke is for
some other use.

It might not show up in the circuits in a house, but at work on some of the
480 volt 3 phase circuits I could show some of the same things with a
Simpson 260. *Start with the voltage on the highest scale and don't worry
about the voltage, just pay attention on how far up the meter goes, then
switch to the lower ranges in order. *On many of the 'phantom' voltages, the
pointer on the meter will not move very far up or down.

I have an assortment of Fluke and other meters I can use, but mostly grab
the 260 and the old analog Amprobe for current measurments.

I do not have one to check it out, but I understand that some of the newer
digital test meters have a low input resistance to help eliminate the
'phantom' voltage problem.

Just plug an incandescent light bulb into the circuit.

With a lamp plugged into the same GFCI, and turned on, I get the same
"oddball" readings at the GFCI.

With no load on 2 other circuits that I tested, I get the expected
readings of 0 between ground and neutral, 115V between hot and ground.

Fluke 75 multimeter.