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#20200 - 01/10/03 11:59 AM Grounding/Bonding Wedge
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Anyone ever use one?
A jumper must be required from one of the screws. Otherwise, the screws pull the wedge tight into the conduit, but no reliable connection to the box is established.

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#20201 - 01/10/03 12:05 PM Re: Grounding/Bonding Wedge
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
Redsy:
Can't say I used it, as I have no clue what you are talking about.
John
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John

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#20202 - 01/10/03 12:13 PM Re: Grounding/Bonding Wedge
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
It is a semi-circular grounding fitting that has 2 screws and can be retro-fitted around wires already installed in conduit by loosening the locknut and inserting the wedge between the locknut & the box. The screws are then tightened to effect a bond.

BTW,

I am not referring to bonding locknuts or bonding bushings.

Joe T. may be able to provide a picture(exhibit).

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#20203 - 01/10/03 12:36 PM Re: Grounding/Bonding Wedge
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
Here's the wedge:

_________________________
Joe Tedesco, NEC Consultant

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#20204 - 01/10/03 12:42 PM Re: Grounding/Bonding Wedge
Bjarney Offline
Moderator

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
Try this

It used to be an inexpensive way to bond a GRC nipple between meter socket and disconnect.

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#20205 - 01/10/03 01:27 PM Re: Grounding/Bonding Wedge
SvenNYC Offline
Member

Registered: 08/19/02
Posts: 1685
Loc: New York City
So it's a sort of washer/flange in a way....provides better contact between the locknut and the sheet-metal panel the conduit is attached to?

That's what it seems to me...

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#20206 - 01/12/03 11:47 AM Re: Grounding/Bonding Wedge
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
Redsy & Bjarney:
Thanks for telling & showing the wedge.
Haven't used it yet, but will now add it to the materials list
John
_________________________
John

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#20207 - 01/12/03 12:26 PM Re: Grounding/Bonding Wedge
Bjarney Offline
Moderator

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
I liked 'em for being inexpensive compared to bonding bushings. Just don’t forget that you need a {crimp} lug for the jumper.

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#20208 - 01/12/03 02:09 PM Re: Grounding/Bonding Wedge
mickky Offline
Member

Registered: 07/22/01
Posts: 48
Loc: toronto
They are useful. They are required ( I believe) when the conduit entering a subpanel is smaller than the largest knockout (?) There is a second lug to attach a jumper on the ones I've seen.

[This message has been edited by mickky (edited 01-12-2003).]

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#20209 - 01/12/03 05:08 PM Re: Grounding/Bonding Wedge
harold endean Offline
Member

Registered: 02/16/02
Posts: 2248
Loc: Boonton, NJ
I have heard of them, but in my years of work, I have never seen one.

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