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#1874 - 06/04/01 06:04 PM Self grounding receptacles.
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
An older home with metal boxes that don't have threaded grounding holes has both top & bottom cable clamps utilized. The grounds are twisted together, cut very short and are not connected to the box. I may be able to use crimp sleeves to install a ground pigtail. If I connect the pigtail to a self-grounding receptacle, will the grounded receptacle effectively ground the box, or does the concept of self-grounding receptacles only work the reverse way
(grounded boxes don't require pigtail)?

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#1875 - 06/04/01 06:29 PM Re: Self grounding receptacles.
sparky Offline

Registered: 10/18/00
Posts: 5545
so your Q would be does the recp carry a ground to the box, as it would normally carry a ground from box to rec.

either way it goes thru the 6-32's , this may be pertinent to how it's worded...

i wish they were truley self grounding for those K&T jobs, but i guess that would be like wishin' for a self cleaning chicken

#1876 - 06/05/01 05:00 AM Re: Self grounding receptacles.
electure Offline


Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
In an application where there's no threaded hole for the ground screw or it's impractical to use the hole, I use ground clips.(Don't particularly like them, tho) I don't have the book here, but I think the ground to the box can't be dependent on the device. (said w/ my Crawfish net in hand and ready for action)

#1877 - 06/05/01 05:25 AM Re: Self grounding receptacles.
Bill Addiss Offline

Registered: 10/07/00
Posts: 4196
Loc: NY, USA

That is a good question!

Would the self-grounding receptacle itself qualify as a "listed grounding device" as in 250-148(a)? I'm thinking that it would not because that is not it's sole purpose.

I think that Electures' grounding clips would be the best way out. (I don't like them either)


#1878 - 06/06/01 05:23 PM Re: Self grounding receptacles.
sparky Offline

Registered: 10/18/00
Posts: 5545
i think you guys nailed it with 250-148 & the clips, good job!


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