Grounding metal box


Old 11-27-10, 12:19 AM
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Grounding metal box

I need to install a metal box for a hallway light in the wall and need to know how to ground it. Do i take the ground wire from the main power and wrap it around the ground screw in the box then to the ground wire of the lamp? or do I need a pig tail? If I make a pig tail how do i do it. I have the book wiring simplified but don't see anything in it.
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Old 11-27-10, 03:46 AM
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Go with door number one. We generally leave 8" of unsheathed wires exposed in the box. This will give you enough grounding wire to wrap around the grounding screw and to the device.
Just for information a pig tail is made using the wire running in from the cable and two wires, nutted to the first one and routed to their respective locations. More work, and not necessary in a device box, usually.

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