Cablebus Conductor Sizing

The current-carrying conductors in cablebus shall be sized in accordance with the design of the cablebus, and in no case smaller than _____ AWG.

a) 1/0
b) 2/0
c) 3/0
d) 4/0

See answer and applicable Code reference

The correct answer is: a) 1/0

Article 370 covers the use and installation requirements of cablebus and associated fittings. As noted in Sec. 370.20(A)(2), the current-carrying conductors in cablebus shall "be sized in accordance with the design of the cablebus but in no case be smaller than 1/0."

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