Compliant bonding means?

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iwire

iwire

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I saw this a while ago, it is bonding a transformer. Figured I would ask a couple of questions here.

CaddyGroundClamp-1.jpg



  1. Is this code compliant?
  2. Forgetting the NEC, will it get the job done?
 
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Is that the grounding electrode conductor for an SDS??

I agree with Chris on this one.
 
1: No.
2: Depends on the avalible fault current. I would like to know that something has been tested so that during a fault, it doent just melt and leave the OCP closed. Putting that aside, It would probably work allright.

~Matt
 
1. I doubt that clamp is listed for grounding purposes. It may not be listed at all.

2. It might work, but then again has it been tested in this application?
 
Thanks for the answers so far, I really don't know where I stand on question 1. I will go look at the code sections referenced and get back to you all. Off tho top of my head I see a listed connector terminating the conductor.

My speculation on question 2 is I would think it would pass tests. Of course I base that only by observing other listed products, like grounding clips, self grounding receptacles etc. Also those type of spring steel beam clamps will put puncture marks into the mild building steel if you tighten them up.
 
OK sorry to waste everyones time, I was unaware of the 'listed pressure connector" wording in 250.8. I guess I should not post pictures when I should be sleeping.

Not to worry, it was not my work, just something I noticed on a service call.

Thanks again. :smile:
 
iwire said:
OK sorry to waste everyones time, I was unaware of the 'listed pressure connector" wording in 250.8. I guess I should not post pictures when I should be sleeping.

Not to worry, it was not my work, just something I noticed on a service call.

Thanks again. :smile:
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1 It cant be code compliant 2 yes it will work but the threads on those stamped bc-s arent even a single full thread. not even one. For both the clamps screw and the lug connection. They should go the extra 2 bucks and get at least a 901 maleable. Or drill a hole in the flange.
 
iwire said:
That is my way of doing, they drill pretty quick with a good bit. I have also been known to break out my angle grinder to get clean steel exposed.
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IMHO, the best way to do it.....running neck in neck with Cadwelding right to the steel.


I cannot imagine that BC being equivalent to one of the methods noted above.
 
iwire said:
My speculation on question 2 is I would think it would pass tests. Of course I base that only by observing other listed products, like grounding clips, self grounding receptacles etc. Also those type of spring steel beam clamps will put puncture marks into the mild building steel if you tighten them up.
Click to expand...

It doesn't seem to be enough contact area for that to be effective.

Of course, it's really a moot point. ;)
 
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