RossS
Member
- Location
- Research Triangle, NC USA
I have more than one EC suggesting they can save wall space by installing one panelboard above another; in other words, installing a panelboard in the dedicated space of another panelboard. Best case scenario is both would be 225A 42ckt panels, but at least one configuration will be a 400A 42ckt panel beneath one of the 225A panels, and another configuration will be a 225A 54 ckt panel installed above one of the 42ckt panels.
I can't find anything in the NEC that clearly prohibits this. I'm assuming the panels, with respect to each other, would not be considered "foreign to the electrical installation" (110.26(E)(1)(a)).
I think it can safely be considered not a best practice, considering I can't remember ever seeing it done. But prohibited? I haven't been able to go that far.
Thoughts?
I can't find anything in the NEC that clearly prohibits this. I'm assuming the panels, with respect to each other, would not be considered "foreign to the electrical installation" (110.26(E)(1)(a)).
I think it can safely be considered not a best practice, considering I can't remember ever seeing it done. But prohibited? I haven't been able to go that far.
Thoughts?