"Doug Winterburn" wrote in message
news
On Fri, 03 Dec 2004 18:53:58 +0000, Bob wrote:


"john" wrote in message
...
It is simply a multiwire circuit. As long as you use a 240v breaker
for
the two circuits, it fine; maybe.

I disagree. You are allowing 40 amps (2 * 20) across a single conductor
(the neutral) by sharing it with two single phase 20 amp circuits.

I disagree. As long as each breaker is on the opposite hot as in any
240V circuit, the total neutral load will never exceed the current draw of
the largest circuit load. If each circuit was drawing an equal load, the
neutral load would be zero.

You are correct. My statement only applies if both branches come off the
same leg.

Bob