We have an inspector here who is calling us out on our ground loop system. We build power equipment buildings which get shipped to their destination. Sometimes, these have to be built in sections and split apart to ship. Thsi is the case on this particular project.
We provide a ground pad on the outside of our building. We run a 4/0 ground from there up to our 1/4" x 2" ground bar loop. This loop runs all the way around the inside of the building. Each individual piece of equipment's ground runs to that ground loop.
When we have split buildings like this one, we run the bar up to the split on both sides then install a 4/0 bare jumper across the split which can be removed for shipping and reinstalled in the field. He is saying that we cannot do this according to 250.24 because the main bonding jumper (the 1/4" x 2" copper loop in this case)must be unspliced. He went on to say that if it is spliced, it must be connected by cad welding it. Is this the case or are you allowed connecting by any other means such as those listed in 250.8?
We provide a ground pad on the outside of our building. We run a 4/0 ground from there up to our 1/4" x 2" ground bar loop. This loop runs all the way around the inside of the building. Each individual piece of equipment's ground runs to that ground loop.
When we have split buildings like this one, we run the bar up to the split on both sides then install a 4/0 bare jumper across the split which can be removed for shipping and reinstalled in the field. He is saying that we cannot do this according to 250.24 because the main bonding jumper (the 1/4" x 2" copper loop in this case)must be unspliced. He went on to say that if it is spliced, it must be connected by cad welding it. Is this the case or are you allowed connecting by any other means such as those listed in 250.8?