ECN Forum Forums Code Related Discussion NEC & other Code issues 3000 277/480 V Y Neutral size?

Don
Gotta be at least a 3/0.
250.66 says a service this size requires a 3/0 ground Minumin.
250.24 (C) 1 says Neutral cannot be smaller then grounding electrode conductor per 250.66.
Thats where I came up with the 3/0.
1/0 is Min. size under 310.4 for Paralling conductors.
Yoopers