mark32
Senior Member
- Location
- Currently in NJ
If one were to use a self grounding receptacle in a properly grounded, flush mounted metal box, would the receptacle's ground screw still need to be bonded to the box to be code compliant?
I've noticed, even with self-grounding devices, better than 95% of the jobs I see have grounds attached to the devices.
You certainly did, and my apologies.Thank you too Larry, but I hope I didn't give the impression I am clueless about grounding, I never considered a box should be grounded in the manner you described. In my post I purposely wrote "in a properly grounded, flush mounted metal box" to show I'm fairly well read on article 250.
You certainly did, and my apologies.
You may still need one, and only for a receptacle. See 250.146(A).Plenty of raised covers are not permitted for grounding, so if you're using an industrial raised cover, for a receptacle or a switch, you still need the pigtail. 250.146. (B)
You may still need one, and only for a receptacle. See 250.146(A).
Also see 404.9(B)
ok ,,,I take that back, Larry, I've been doing this for years on switches because of this. I thought I had read this. Couldn't remember where. Thanks Cowboy
ok ,,,I take that back, Larry, I've been doing this for years on switches because of this. I thought I had read this. Couldn't remember where. Thanks Cowboy
What does 404.9(B) have to do with an industrial metal cover and a bonding jumper. Are you saying that one is required?
If one were to use a self grounding receptacle in a properly grounded, flush mounted metal box, would the receptacle's ground screw still need to be bonded to the box to be code compliant?
Notice the OP said flush mounted.
Mark
According to the wording, Yes
Shall be considered effectively grounded if either of the two conditions are met.
1) The switch is mounted with metal screws TO A METAL BOX, or to a nonmetallic box with integral means for grounding devices.
(We're mounting to a raised cover NOT A BOX)
2) An equipment grounding conductor is connected to an equipment grounding termination.
I say, unless your cover is listed for grounded, you have to go with option 2
Where's the requirement for a listed cover in 404.9(B)? It says a metal cover with metal screws connected to an EGC. A metal cover connected to a grounded metal box wouldn't be compliant?