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#105492 02/20/05 06:28 PM
Joined: Oct 2000
Posts: 2,749
Member
What's Wrong With This Picture?

[Linked Image]


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Joined: Aug 2002
Posts: 402
J
Member
The clamp on the ground rod is 1/2 installed reversed, possibly because it is too large for the rod and would not tighten.

Joined: Dec 2004
Posts: 209
H
Member
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

Joined: Jan 2003
Posts: 4,391
I
Moderator
Look at page 5 of this pdf.

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

You can get UL listed reversible ground clamps. [Linked Image]


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Joined: Dec 2003
Posts: 886
H
Member
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

Joined: Jan 2003
Posts: 4,391
I
Moderator
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


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Joined: Dec 2003
Posts: 886
H
Member
Bob, that's for a driven pipe grounding electrode, not a solid rod. [Linked Image]

-Hal

Joined: Dec 2003
Posts: 886
H
Member
Was typing when you were. Ok, definite could be. [Linked Image]

-Hal

Joined: Feb 2005
Posts: 219
S
Member
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

Joined: Jan 2005
Posts: 5,316
Cat Servant
Member
AM I the only one who considers this an improper means of splicing the GEC?

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