websparky
Senior Member
- Location
- Cleveland, Ohio
This is the first one I have come across.....is it listed for a rod electrode??
Listed GEC /Rod Clamp?
- Thread starter websparky
- Start date
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charlie
Senior Member
- Location
- Indianapolis
Re: Listed GEC /Rod Clamp?
It looks like an old pipe electrode which does not need a listing. The clamp and GEC on the other hand . . .
It looks like an old pipe electrode which does not need a listing. The clamp and GEC on the other hand . . .
pierre
Senior Member
- Location
- Westchester County, New York
Re: Listed GEC /Rod Clamp?
Greaves makes a listed DB clamp that looks just like a water pipe clamp - it is stamped with a DB on it. The one shown does not look like it is listed for the purpose.
Pierre
Greaves makes a listed DB clamp that looks just like a water pipe clamp - it is stamped with a DB on it. The one shown does not look like it is listed for the purpose.
Pierre
dana1028
Senior Member
- Location
- San Francisco Bay area
Re: Listed GEC /Rod Clamp?
hard to tell....is that an alum. conductor?
hard to tell....is that an alum. conductor?
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: Listed GEC /Rod Clamp?
Anybody note the seperate rod for the telco/cable? one violation.
LOL
The clamp shown can be used for ether pipe or rod by reversing the back side of the clamp. if you look close you will see that the clamp bottomed out before it was tight, possably why the installer bent the screws over. reversing the back side of the clamp will give it a range all the way down to a 1/4" rod (like the ones the telco use to use) And Dean is correct listed clamps for DB or rain exposed areas will have brass or stainless steel screws and hardware not the steel screws you find on most ground straps for indoors that don't even have to be listed.
Anybody note the seperate rod for the telco/cable? one violation.
LOLThe clamp shown can be used for ether pipe or rod by reversing the back side of the clamp. if you look close you will see that the clamp bottomed out before it was tight, possably why the installer bent the screws over. reversing the back side of the clamp will give it a range all the way down to a 1/4" rod (like the ones the telco use to use) And Dean is correct listed clamps for DB or rain exposed areas will have brass or stainless steel screws and hardware not the steel screws you find on most ground straps for indoors that don't even have to be listed.
rickg
Member
- Location
- Rhode Island
Re: Listed GEC /Rod Clamp?
The clamp looks like a pipe/tubeing connector... not rated for ground rods. What about the electrode being driven flush/below grade? The connector should be rated for direct burial. The conductor should be secured to the surface it is run on. The electrodes should be connected together.
Rick
The clamp looks like a pipe/tubeing connector... not rated for ground rods. What about the electrode being driven flush/below grade? The connector should be rated for direct burial. The conductor should be secured to the surface it is run on. The electrodes should be connected together.
Rick
grandpapastu
Member
Re: Listed GEC /Rod Clamp?
A point to consider here is that any approved listing is nullified and doesn't mean a thing if it is installed incorrectly.
For example: You may want to rate your conductor ampacity for 90 degree Celsius. When the system fails because 75 degree Celsius terminals were used... Then, terminals that are 90 degree Celsius rated but torqued incorrectly are useless; the testing laboratory isn't accountable, the manufacturer is not in any way accountable. Too many ugly things goin' on in my trade fellas.
grandpapastu.
[ June 04, 2004, 02:30 PM: Message edited by: grandpapastu ]
A point to consider here is that any approved listing is nullified and doesn't mean a thing if it is installed incorrectly.
For example: You may want to rate your conductor ampacity for 90 degree Celsius. When the system fails because 75 degree Celsius terminals were used... Then, terminals that are 90 degree Celsius rated but torqued incorrectly are useless; the testing laboratory isn't accountable, the manufacturer is not in any way accountable. Too many ugly things goin' on in my trade fellas.
grandpapastu.
[ June 04, 2004, 02:30 PM: Message edited by: grandpapastu ]
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