Re: Generator hook-up

Posted by Gerald J. on October 29, 2006 at 07:56:27 from (67.0.96.19):

In Reply to: Generator hook-up posted by Roy Suomi on October 28, 2006 at 21:44:03:

The other hazard is that power cord from the generator with the male live pins all exposed if disconnectd while the generator is running.

What is legal, is to add another breaker for the generator feed and arrange a mechanical interlock between that breaker and the main so that only one can be on at a time. Its even more effctive if the generator is 120 volts only and the two "load" lugs of the generator breaker are tied together to feed both sides of the house 240 with the same phase. That way you have that short if the panel was supplied with 240 volts as an electrical interlock and you prevent the 240 volt loads from working, but allow 120 volt loads that are often more important. You don't want to run the hot water heater or electric stove on the generator, it may not have the power to supply then, but you do want to run lights, the furnace, the refrigerator, and the freezer which are always 120 volt loads.

Breaker handle interlocks are sold by breaker panel makers.

Gerald J.

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