Wiring ground for generator inlet
The receptacle and it's mounting cover is grounded by the bare ground wire through the chassis (yoke; frame; mounting strap) of the receptacle itself, thereby grounding the cover and the box when attached.
When you have a metal box, a separate length (pigtail) attached to the bundle of ground wires inside, or a long enough extension of one of the incoming ground wires, must be attached to the box itself. But if a clip intended for the purpose is squashed between the receptacle chassis and the box then only one of the two, the receptacle or the box, needs a ground wire attached to it.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 02-27-2013 at 09:00 AM.