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#20200 - 01/10/03 03:59 PM Grounding/Bonding Wedge  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
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 04:05 PM Re: Grounding/Bonding Wedge  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,808
Brick, NJ USA
Redsy:
Can't say I used it, as I have no clue what you are talking about.
John


John

#20202 - 01/10/03 04:13 PM Re: Grounding/Bonding Wedge  
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
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).


#20203 - 01/10/03 04:36 PM Re: Grounding/Bonding Wedge  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Here's the wedge:

[Linked Image]


Joe Tedesco, NEC Consultant

#20204 - 01/10/03 04:42 PM Re: Grounding/Bonding Wedge  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
Try this

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


#20205 - 01/10/03 05:27 PM Re: Grounding/Bonding Wedge  
SvenNYC  Offline
Member
Joined: Aug 2002
Posts: 1,691
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...


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


Member
Joined: Apr 2002
Posts: 6,808
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

#20207 - 01/12/03 04:26 PM Re: Grounding/Bonding Wedge  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
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.


#20208 - 01/12/03 06:09 PM Re: Grounding/Bonding Wedge  
mickky  Offline
Member
Joined: Jul 2001
Posts: 43
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).]


#20209 - 01/12/03 09:08 PM Re: Grounding/Bonding Wedge  
harold endean  Offline
Member
Joined: Feb 2002
Posts: 2,233
Boonton, NJ
I have heard of them, but in my years of work, I have never seen one.



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