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Wednesday, October 27, 2021
Question:
Hello and Thanks for all you do.
My question is can a standard ground clamp be used to connect a grounding electrode conductor to the rebar in a concrete-encased electrode? Appreciate any opinion you have on this.
Mark Gallison
A
Answer:
Hi Mark,
We get this question every now and then. The short answer is look for the marking "Direct Burial" on the grounding clamp. According to the UL Product information in Category KDER, this marking is an indication of not only suitability for burial in the earth, but also for encasement in concrete. See Section 250.70. The UL Guide information can be found at https://productiq.ulprospector.com/en.