hunt2871
Member
- Location
- Carlsbad, NM
I am doing QA on a government project in a level 2 nuclear facility and the electrical contractor on the project has used a bunch of 1/2" steel one hole straps to strap bare copper equipment grounding conductors and bare copper grounding electrode conductors to concrete slabs and pillars. The straps have been "mashed" in order to fit the 4/0 copper better. I know this is pretty standard practice...I have done it hundreds of times myself...but I have never thought that it was exactly kosher. There is the issue of dissimilar metals but I also think there is a UL listing issue...I doubt seriously if a standard 1/2" one hole strap is listed for this application.
My goal here is to find a way to justify the use of these straps. I don't want to force the contractor into replacing them but I also want to make sure the tax-payer is getting what they pay for. The job specs cover all bases from the NEC to best industry practices.
Any thoughts?
My goal here is to find a way to justify the use of these straps. I don't want to force the contractor into replacing them but I also want to make sure the tax-payer is getting what they pay for. The job specs cover all bases from the NEC to best industry practices.
Any thoughts?