I guess derating would apply (6x 10ga THHN +8ga grounding) , in which case a
50a breaker may suffice?


bill


"rider89" wrote in message
.. .
wanting to feed a branch box with a 60a breaker (#6 copper) thru EMT.

This may be a stupid question, but is there anything in the NEC to
prohibit using double #10's to get the amperage?
Reason is I have plenty of (free) #10 on hand and tube capacity is
slightly better with #10's.

thanks
bill