If you clamp both legs of 220 volts (or the hot and neutral
on a regular circuit) you get a reading of zero. The
electrical fields cancell each other out. You have to clamp
just one wire.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"RBM" wrote in message
...


Yes, and no. Most 240 volt devices should draw the same
amount on both legs,
or there is a problem. However, some appliances fed with
120/240 volt
feeders, like an electric clothes dryer will use 240 volts
for the element
and 120 volts for the motor, so there should be different
readings on each
leg. A generator that outputs 240 volts will be rated in KW
@ 240 volts (120
volts X 2). You could add it up either way. You could also
turn on all the
circuits and appliances you want to work, and turn off all
other circuits at
the panel, and check amperage at the mains