My grounding electrode conductor from my ground rod to my service equipment is sized from 250.66. 250.66A not required to be larger than 6 copper although I made it 1/0 also. My equipment grounding conductor from my main breaker to my starter enclosure is 1/0 according to TBL250.122 So from My Main Breaker to the Utility Trasformer Are my grounds considered a grounded conductor brought to service equipment? (under 250.66 FPN says see 250.24B) If so wouldnt it be sized based on the size of the ungrounded service-entrance conductor in each raceway according to 250.24B2 for parallel conductors? Or am I confused and my GEC has to be ran clear back to the transformer also?
