I am Installing an 800 amp service 480v 3-phase from a 480/277 wye Utility transformer The service is for 3 phase motors only and I am paralleling 3 350kcmill conductors. I believe I am correct on pulling a 1/0 grounding conductor although after looking at an identical job 3/0 was used. Am I OK? Also am I right that from the transformer to the 1st disconnect this would be considered a neutral and be taped white and at the 1st disconnect where I am bonding with the grounding electrode conductor afterwards it would be a green ground?
