We are working in an old county hospital building, and the electrical system is a mess. Among other issues, there are many bonding problems, and we are doing a project to clean that up. There are three service entrances to the building, at three corners of the complex, and as far as I can tell the three ground buses are not bonded together. I don't think the code addresses this directly, but I am trying to find out what standard practice would be. I am leaning toward bonding all three services together with a 3/0 copper cable. Any opinions?
bonding multiple service entrances
- Thread starter lile001
- Start date
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ultramegabob
Senior Member
- Location
- Indiana
are there any metal piping systems or structrual steel to bond to?
Buck Parrish
Senior Member
- Location
- NC & IN
See 08 250.66, 250.64.d
- Status