elbee
Member
- Location
- Deerfield, Florida
Hello! New to the forum here.
I searched this forum for about an hour now, but have not seen a similar question posed. If I missed it, please just send me the link to the proper thread and I apologize for the waste of time.
I have been banging my head against the wall over this for a few days now. There is no way around this as far as I can see. This site has a 3000A main breaker which is fed by 8 3-1/2" EMT circular raceways. The EMT is going to server as ground, but needs to be bonded. Looking at 250.122, it appears we need to use 400 mcm copper to bond the EMT. I have never seen a bonding bushing or anything similar to fit 400 mcm. Does anybody have a hint for me? :ashamed1:
I searched this forum for about an hour now, but have not seen a similar question posed. If I missed it, please just send me the link to the proper thread and I apologize for the waste of time.
I have been banging my head against the wall over this for a few days now. There is no way around this as far as I can see. This site has a 3000A main breaker which is fed by 8 3-1/2" EMT circular raceways. The EMT is going to server as ground, but needs to be bonded. Looking at 250.122, it appears we need to use 400 mcm copper to bond the EMT. I have never seen a bonding bushing or anything similar to fit 400 mcm. Does anybody have a hint for me? :ashamed1: