Q about derating
Hi folks! Just a quickie question here...
In planning a semi-busy conduit run, I'll have a couple of pairs of switched "travelers" (i.e., alternative hot paths running between three-way switches) in the same raceway. For the purposes of derating, does a pair of travelers count as one conductor or two?
From the standpoint of heat management, it strikes me that a pair should count as one, since only one can be an active conductor at any point in time. [OTOH, code doesn't always accommodate my intuitions and divinations. :-) ]
(Note: The question is not about conduit physical fill volume...just how to count conductors for derating calcs.)