I am currently looking at feeding 4-480/277vac panelboards from an existing emergency panelboard. Currently they are all fed from their own MCC breaker. The emergency panelboard is powered by a generator when the power goes down through an ATS. Here's my delimma: The emergency PB is rated for 100 amps and the to-be sub-fed panelboards are 125 amps with main breakers. All of the panels grouped together are carrying about 40 amps total (including the E PB). Is there anything in the code that prohibits the redirection of the panelboards to the E panelboard? (This is customer driven to load up the generator more during testing - the building they are powering has allot of spare office space currently... ) Please advise.
Thanks in advance!
Thanks in advance!