Rough-In Wiring

Old 08-28-03, 08:42 AM
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Rough-In Wiring

Another thing I noticed about the rough-in electric was that in the two, three and four gand light switch boxes, all the ground wires were twisted and placed neatly in the back of the box WITHOUT ONE OF THEM BEING LONGER TO TIE INTO THE SWITCHES. I noticed this was different from the receptacle boxes where if the receptacle was in the middle of a run, the grounds were twisted and placed into the back of the box with one of them longer so it could be connected to the receptacle.

The boxes were all blue plastic. Anyone know why the difference.

Also, if the back of a 4" metal junction box is mounted against a 2x6, where is the best place to put the grounding screw? On the side of the box or is it O.K. to run the grounding screw through the box and into the 2x6?
Old 08-28-03, 09:14 AM
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Until recently, most switches did not have the provision of a grounding screw. So, when making the splices in a switch box there was no reason to leave a "pigtail" for the switches. Now that there are grounding screws it is common to see pigtails for the switches as well as the receptacles.
The color of the box is of little consequence. Different manufacturers sometimes use different colors.
Yes, you can put a ground screw in the back of a box that is mounted against a 2x6. The only thing is that you must be careful that the backpressure on the screw does not strip the threads. There is an alternative to this method of grounding. You can use a grounding clip, this device attaches to the side of the box.
Old 08-28-03, 11:15 AM
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Great info. Thanks for the reply and insight.
Old 08-28-03, 12:10 PM
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Add a 6-inch piece of wire to the grounds and wirenut them all together. Attach the other end of the piece to the switch ground screw.

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