I have always understood that the way Inductive heating is limited by two ways, One, 120 volt single phase circuit, induction is reduced by the grounded conductor, by bringing the unbalanced load back.
Two, 120/208 Volt three phase or single phase, by having two phases or more in the same conduit this cancels out the induction?
So with that said, I have a two tub panel, 120/208 volt three phase system. I nippled into a contactor control cabinet for refrigeration that the panel feeds. I used two, 2" nipples, in the top nipple I ran my load conductors (switch legs)
and in the second conduit I ran all of my Line conductors. My load consists of Door heat, anti sweat heaters, fans for dual temp cases and lights.
Question, My inspector hit my on the way that I grouped my conductors, his argument is, Need to run my Hots, and the switch leg for that hot in the same raceway to prevent Inductive heating?
Only place I have seen this in is 300.3 (B) but I don't think this is the code that the inspector is talking about, curious to know where this information is.