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#105492 - 02/20/05 02:28 PM Improper use of equipment
Joe Tedesco Offline
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Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
What's Wrong With This Picture?

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Joe Tedesco, NEC Consultant

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#105493 - 02/20/05 04:46 PM Re: Improper use of equipment
jdevlin Offline
Member

Registered: 08/07/02
Posts: 402
Loc: welland ontario canada
The clamp on the ground rod is 1/2 installed reversed, possibly because it is too large for the rod and would not tighten.

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#105494 - 02/20/05 05:08 PM Re: Improper use of equipment
HLCbuild Offline
Member

Registered: 12/05/04
Posts: 206
Loc: Herndon,Va USA
The ground clamp is backwards, the rod is not driven flush or below the ground level, and the GEC is not continuous to the ground rod

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#105495 - 02/20/05 05:34 PM Re: Improper use of equipment
iwire Offline
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Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Look at page 5 of this pdf.

http://www.o-zgedney.com/PDF/MA1thru12.pdf

You can get UL listed reversible ground clamps.
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Bob Badger
Construction & Maintenance Electrician
Massachusetts

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#105496 - 02/20/05 05:39 PM Re: Improper use of equipment
hbiss Offline
Member

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
That water pipe clamp, even if it was turned around is not listed as a ground rod clamp. I also don't know where that copper strap came from.

Proper way would have been to use a GEC long enough to reach the ground rod and an acorn or other listed clamp.

-Hal
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#105497 - 02/20/05 05:43 PM Re: Improper use of equipment
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Hal that clamp may well indeed be listed for that use.

The two bumps touching the rod on the 'reversed' part of the clamp are a tip off.

From page 5 of the pdf link I posted above.

 Quote:
• GCA, GCH and GC-100-02B are
reversible for attachment to ground rods.



Bob
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Bob Badger
Construction & Maintenance Electrician
Massachusetts

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#105498 - 02/20/05 05:44 PM Re: Improper use of equipment
hbiss Offline
Member

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
Bob, that's for a driven pipe grounding electrode, not a solid rod.

-Hal
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www.myphonetechs.com

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#105499 - 02/20/05 05:47 PM Re: Improper use of equipment
hbiss Offline
Member

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
Was typing when you were. Ok, definite could be.

-Hal
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www.myphonetechs.com

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#105500 - 02/20/05 06:03 PM Re: Improper use of equipment
sierra electrician Offline
Member

Registered: 02/12/05
Posts: 220
Loc: North Fork, CA USA
The rod clamp is rated to be used like this. I'd say the biggest violation here is the compression fitting that the Brass Conduit adapter is screwed on to. It could become loose in time.

Well thats my guess.

Rob

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#105501 - 02/21/05 04:56 PM Re: Improper use of equipment
renosteinke Offline
Cat Servant
Member

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
AM I the only one who considers this an improper means of splicing the GEC?

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