guitarchris
Senior Member
- Location
- Central North Carolina
Let me start this by stating that we do 98% resi work. Most of the commercial work we do is interior work or maintenance. That said we have been asked to do service upgrade on a restaurant. We are separating the existing service off of a trough that serves several other tenants in the same building. We want to leave all the other items alone, as it is as old as the hills and a mess. It is 3 phase coming in and 2 legs coming off of a 5 jaw meter to a 200A single phase panel that serves the restaurant. The A/C that are on the roof are tripping the main when all is on.
I plan to build a 208/120 400A 3 phase service with a standard 3 ph meter base with a 18 circuit 3ph 200A panel beside the meter. Then a 3 phase 200A main breaker disconnect on the other. Can I just come off 2 legs of the 3 phase breaker/ disco to feed the 200A single phase panel inside the restaurant? If I can could I just come off two legs at the meter to feed a single phase disconnect to save on cost? How about the panel, can it be single phase, pulled off 2 phases? None of the equipment is 3 phase (including A/C's).
I'm just looking for the simplest, cleanest, cost effective method for my install. If I was doing this on a single phase resi scenario I would use a meter panel combo for ease of install, I don't think such a thing exists for 3 ph. I don't live in the commercial world, so help a bother out!
I'm
I plan to build a 208/120 400A 3 phase service with a standard 3 ph meter base with a 18 circuit 3ph 200A panel beside the meter. Then a 3 phase 200A main breaker disconnect on the other. Can I just come off 2 legs of the 3 phase breaker/ disco to feed the 200A single phase panel inside the restaurant? If I can could I just come off two legs at the meter to feed a single phase disconnect to save on cost? How about the panel, can it be single phase, pulled off 2 phases? None of the equipment is 3 phase (including A/C's).
I'm just looking for the simplest, cleanest, cost effective method for my install. If I was doing this on a single phase resi scenario I would use a meter panel combo for ease of install, I don't think such a thing exists for 3 ph. I don't live in the commercial world, so help a bother out!
I'm