Is there any reason that a generator and commercial power cannot share a common ground?
I am thinking of installing a select duplex outlet as follows: 1. Isolate the 2 outlets by removing the hot and neutral jumpers. 2. Connect commercial power to one of the outlets and a generator circuit to the other outlet. 3. However the ground is common to both outlets and cannot be separated. So is there any reason other than purely theoritical that the ground wire of both romex runs cannot be connected at the outlet?
If done at an ng furnace, during an outage power could be applied to the thermostat, igniter, and blower simply by moving a plug from one outlet to another. Am I missing anything? Bob S.