My point is per 250.24 (C) Operating less then 1000 volts is grounded at any point. Grounded conductor SHALL be run to each disconnecting means.Yes this is aimed at Service equipment BUT. if you put a 4160 transformer 3 phase on a POLE , run secondary down to a Disconnect 225.8 (C) Grounded conductor must be broken. Not Grounding conductor.
Yes it a FEEDER but for grounding purposes I feel it should be a grounded conductor. Only difference is it might be sized a bit larger & be white, Then the Grounding Electrod conductor would go to the disconnect & be bonded there. Either way you do it you have 480/277 at the disconnect. But with the Neutral you have a True 277/480 with a Ground you have 480 with ground .Kinda get what I;m saying here??
