Flip the cover over and use the provided template. To find the cause, remove all loads from the circuit. Wiring for a 15 Amp Isolated Ground Circuit An isolated-ground receptacle makes use of an extra wire to provide a separate, dedicated ground in the circuit. Illegal yes unsafe not if you follow proper procedures. If the user is unable to perform electrical work themselves, a qualified electrician should be consulted. Edit Related wikiHows. The breaker interlock method requires the to most upper and right breaker space to be free.
If you were to measure the voltage between a red lug and a black lug they are not really those colors in the panel, just used here for explanation purposesyou would measure v, if you were to measure between a black bus lug and a ground or neutral bus, you would measure v, and the same would hold true if you measure between a red bus lug and the ground or neutral bus.
Flip the cover over and use the provided template. Repair any damage found before plugging the load back into the circuit.