the captive heat of any group of CCC's vs. the volume of area they occupy is apparently a generic call via the NEC.
that derating is required in a wireway were there is more room and less CCC's in the panel below, or above should be fodder for debate.
also note wireways vs. JB's here....
that we are not let to wander from this doctrine is fine with me, that there is no rationale available to validate this makes me wonder if we are a trade with amnesia.
[This message has been edited by sparky (edited 11-29-2002).]
