Re: SER for Commercial Delta Sub-panel?
Yes, assuming that type NM cable is permitted, due to the type of construction. Also, it can not be installed above a suspended ceiling.
See 338.10(B)(4), which will direct you to 334.10 and 334.12.
BTW: I'm not sure, do they make 3 phase SER cable?
[ October 27, 2005, 08:59 AM: Message edited by: ryan_618 ]