Re: Breaker Panel 220V problem



According to RBM <rbm@xxxxxxxxxxx>:
You are correct. None of the 240 volt stuff will work, and half of the 120
volt stuff will work

Not necessarily. If one leg's connection to the utility is broken,
he could see no 240V devices work, and _all_ of the 120V stuff appear
to work. If a 240V device (like the water heater) is switched on, it'll
backfeed one 120V side into the other.

Ordinarily, you'd expect the lights on the "broken connection side"
to be dim, but if you don't load it up very much, and the 240V device
is large enough (water heater, stove, dryer), the lights may well not
dim noticably at all.

The voltage difference between the two legs at the panel is the
voltage drop across the 240V device.

Simple way to check this stuff out without opening anything up:

1) Cycle the main breaker, and see if things work any better.

2) Turn off _every_ 240V breaker, and see if he loses one half
of the 120V circuits.
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.
.



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