jwoody
Member
- Location
- Orange County, CA
- Occupation
- Building Inspector
I've just done an inspection of this pv system where the single line has all the distribution removed from the main panel and relocated to the new 400amp load center, which is fed off 200 amp brkr and is the only ocpd in the main panel, other than the main brkr. I know the engineer did this because its a large pv system and it needs to conform to the section regarding busbars under 705.12. My interpretation of this section is that the busbar rating would still be the main busbar (200a) but I dont know PV systems all that well and our engineer has explained her interpretation to me, which of course overrides me. Either way, it visually looks funny having a large 400amp fed from a (less than 1/2 the visual size) 200amp service. Is this ok? Is there any section in the code book that talks about ratings and would contradict a sub panel that large on a smaller service?