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Old 10-19-2011, 08:36 PM   #1
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Grounding in a plastic receptacle or junction box


Do you need to ground the recepticle in a plastic box or do you need to ground the incoming or two outgoing lines in a plastic junction box?


Last edited by smcgarry9; 10-19-2011 at 08:39 PM. Reason: I did not get the reply, I needed to remove a blocker in my computer
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Old 10-19-2011, 08:41 PM   #2
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Grounding in a plastic receptacle or junction box


All grounds must be connected to each other and to the receptacle.

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Old 10-20-2011, 04:45 AM   #3
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Grounding in a plastic receptacle or junction box


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All grounds must be connected to each other and to the receptacle.
Hmmmmmm. I accept that should be the case, but um. Hmm. Where is the logic in attaching a ground to a plastic receptacle? Last I checked, plastic doesn't conduct electricity, it melts.

I don't mean to nitpick, but I just wanted to clarify to the OP that you were probably referring to metal receptacle boxes on that last part there. (Unless I'm wrong, where proof that a plastic box needs grounding is shown, I'll accept defeat as long as it's a damn good reason ).

From what I think I know, the plastic receptacle should only be utilized with something that brings a ground into the box (typ. NM cable- Romex or whatever) and that ground is attached to the neutral bus bar in the breaker panel.
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Old 10-20-2011, 05:34 AM   #4
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Grounding in a plastic receptacle or junction box


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Originally Posted by scyarch View Post
Hmmmmmm. I accept that should be the case, but um. Hmm. Where is the logic in attaching a ground to a plastic receptacle? Last I checked, plastic doesn't conduct electricity, it melts.

I don't mean to nitpick, but I just wanted to clarify to the OP that you were probably referring to metal receptacle boxes on that last part there. (Unless I'm wrong, where proof that a plastic box needs grounding is shown, I'll accept defeat as long as it's a damn good reason ).

From what I think I know, the plastic receptacle should only be utilized with something that brings a ground into the box (typ. NM cable- Romex or whatever) and that ground is attached to the neutral bus bar in the breaker panel.
You DON'T ground the plastic box. Ypu ground the receptacle so that when you plug in a grounded piece of equipment it is grounded through the receptacle to an equipment grounding conductor.
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Old 10-20-2011, 10:33 AM   #5
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Grounding in a plastic receptacle or junction box


Oh.. OOPS! My lack of sleep was getting to me. I read receptacle and I forgot the receptacle was the plug, not the box. My bad
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Old 10-20-2011, 11:04 AM   #6
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Grounding in a plastic receptacle or junction box


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Oh.. OOPS! My lack of sleep was getting to me. I read receptacle and I forgot the receptacle was the plug, not the box. My bad
No, the receptacle is the device that you plug the load into. The load being a tv, drill, coffee pot, oven, etc.

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