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I-beam clamp NEC approved??


I've been using I-Beam clamps for years and have always been under the impression that they are NEC approved.  Just had a WB guy tell me it's not.  Anyone know for sure?  If it is NEC approved, is there a link I can forward to the WB guy so he'll know it is approved?  Thanks for anyone's input.
This is CABL.com posting #256338. Tiny Link: cabl.co/mbeQE
There are 5 replies to this message
Re: I-beam clamp NEC approved?? DONE RIGHT 6/4/2009 8:19:27 AM
Re: I-beam clamp NEC approved?? Nate30 6/4/2009 3:48:49 AM
Re: I-beam clamp NEC approved?? Chip Douglas 6/4/2009 12:36:38 AM
Re: I-beam clamp NEC approved?? Chip Douglas 6/4/2009 12:22:51 AM
Re: I-beam clamp NEC approved?? scooterz56 6/3/2009 9:48:15 PM