Wireway used as pull box, do I have to derate?

[jusme123]

If I use a wireway as a junction box, do I have to derate?

The scenario is a 6’ length of 12”x12” wireway, I am mounting on wall, coming into the far backside with 3- 2 1/2” conduits, than nippleing 3’ down on opposite side of wireway with the 3 conduits into panel

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[jusme123]

The wireway is 6 feet long



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[infinity]

No derating for a wireway until you exceed 30 CCC's at any cross section.

 

[jusme123]

Wireway used as pull box, do I have to derate?

Yeah, just saw it 376.22(B)

Thank you.


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