UL 504 Ground Clamp rated for underground burial???

[wbalsam1]

Is a UL 504 rated for underground burial? How would I find this out? Thanks.:smile:

 

[cadpoint]

Go to ul.com a search UL 504 or click here for same search.

But, this didn't exactly answer your question but you can expand your search at www.ul.com

 

[480sparky]

What's a UL 504? A model/part number?

 

[wbalsam1]

What's a UL 504? A model/part number?

I've been told that this # (504) is stamped on the ground clamp. The 2001 UL Whitebook states that for direct burial, a DB must be stamped on the clamp. I don't have a newer UL book and can't seem to find this 504 clamp. Thanks.

 

[wbalsam1]

Go to ul.com a search UL 504 or click here for same search.

But, this didn't exactly answer your question but you can expand your search at www.ul.com

Thanks. This was very helpful. Didn't find 504 specifically, but still very insightful. :smile:

 

[480sparky]

I've been told that this # (504) is stamped on the ground clamp. The 2001 UL Whitebook states that for direct burial, a DB must be stamped on the clamp. I don't have a newer UL book and can't seem to find this 504 clamp. Thanks.

I googled UL 504 and came up with nothing electrical. Mostly United Airlines flight 504.....

 

[Pierre C Belarge]

I have seen many DB type clamps, with the DB imprinted on the clamp. I have yet to see the number 504 on any of those clamps.

 

[wbalsam1]

I have seen many DB type clamps, with the DB imprinted on the clamp. I have yet to see the number 504 on any of those clamps.

Thanks Pierre. I'm beginning to think that the "504" is other than a "UL" #, and probably some manufacturer designation or style number, etc.

For a water-pipe type of clamp used outdoors on the end of a rod, slightly buried, years ago, would this type clamp have been required to have a DB listing? In other words, when did the requirement for listing ground clamps for suitability for direct burial come into effect?

Does anyone know? Thanks in advance. :smile: