Thanks for the info on the exception. The reason we're looking into this is because the customer was unhappy that there would have to be electrodes driven and outside metal systems bonded together in our original design. He said he already had a couple of other trailers that didn't require...
Thanks for the response. Have you heard of the exception i mentioned? I haven't seen any plant I have worked in use the main GEC in place of the seperately derived system's GEC, and wish I knew what exactly this exception allows. Since our equipment is cord connected, I'm trying to find out...
I work for an industrial equipment OEM, and in our latest project we are tasked with building portable processing equipment. Our equipment has been built into a semi-trailer. It comes with a power system and filler equipment. It has a 30KVA XFMR to step 480v 3ph down to 120/208 3ph with a...
jraef (Electrical) said "I have had issues with coiled conductors acting as inductors and causing serious voltage drop. But they were hundreds of feet left on a reel (cheap user wanted to return it un-cut when the temp job was over). I don't think 4 or 5 loops in air would add significant...
