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#105492 - 02/20/05 06:28 PM Improper use of equipment  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
What's Wrong With This Picture?

[Linked Image]


Joe Tedesco, NEC Consultant

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#105493 - 02/20/05 08:46 PM Re: Improper use of equipment  
jdevlin  Offline
Member
Joined: Aug 2002
Posts: 402
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.


#105494 - 02/20/05 09:08 PM Re: Improper use of equipment  
HLCbuild  Offline
Member
Joined: Dec 2004
Posts: 209
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


#105495 - 02/20/05 09:34 PM Re: Improper use of equipment  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
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. [Linked Image]


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#105496 - 02/20/05 09:39 PM Re: Improper use of equipment  
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
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


#105497 - 02/20/05 09:43 PM Re: Improper use of equipment  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
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


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#105498 - 02/20/05 09:44 PM Re: Improper use of equipment  
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
Hawthorne, NY USA
Bob, that's for a driven pipe grounding electrode, not a solid rod. [Linked Image]

-Hal


#105499 - 02/20/05 09:47 PM Re: Improper use of equipment  
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
Hawthorne, NY USA
Was typing when you were. Ok, definite could be. [Linked Image]

-Hal


#105500 - 02/20/05 10:03 PM Re: Improper use of equipment  
sierra electrician  Offline
Member
Joined: Feb 2005
Posts: 219
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


#105501 - 02/21/05 08:56 PM Re: Improper use of equipment  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
AM I the only one who considers this an improper means of splicing the GEC?


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