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Old 03-03-2013, 07:33 PM   #16
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A few wiring questions on installing this timer switch


Quote:
Originally Posted by thinksincode
I attached the green ground wire from the timer switch to a screw in the electrical box. But I'm not sure if this is acceptable. Does this look safe? Or am I asking for trouble?
In the back of the box there should be a hole that accepts a 10-32 grounding screw which is typically green in color. That would be the traditional place to ground switches to the box. You can buy boxes of the grounding screws at any supply house or big box store. They also sell pre made ground pigtails with both stranded and solid wire that are very convenient to use as well. I wouldn't use the cable clamp - it may be legal though - someone else who knows the code well can jump in and comment.

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Old 03-03-2013, 07:35 PM   #17
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A few wiring questions on installing this timer switch


I think I see the hole that you mean. Sorry for the blurry picture, but it's the only one where it's not obscured by the wires. The hole is right in the middle. Is that where I would attach a grounding screw?

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Old 03-03-2013, 08:46 PM   #18
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A few wiring questions on installing this timer switch


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Originally Posted by thinksincode
I think I see the hole that you mean. Sorry for the blurry picture, but it's the only one where it's not obscured by the wires. The hole is right in the middle. Is that where I would attach a grounding screw?
Looks like a good candidate. Do you have a 10-32 ground screw? Also note that sometimes when they tap (thread) those holes they are not perfect so it may take a little bit of work.
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Old 03-03-2013, 08:58 PM   #19
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A few wiring questions on installing this timer switch


I don't have any handy, no.

I actually have decided to call an electrician I know to come re-do this properly after all. If I have this many questions, I am probably in over my head. I appreciate all the help!
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Old 03-04-2013, 06:31 AM   #20
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A few wiring questions on installing this timer switch


That does nothing unless that box is somehow grounded itself. It is no more asking for trouble than leaving that ground wire from the switch unattached.
The ground to the switch does not affect functionality. But think of the ground wire as an airbag in a vehicle. If you need the airbag in a vehicle you are going to hope it is there. Same as ground on a device

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