My boss and I are having a disagreement with the sizing of a raceway bond. We have a 600amp service, with Parallel 350's fed underground to a distribution panel through pvc. I,m saying we need to have 1/0, and he is telling me #1. I'm a little confussed on where to find the sizing of this conductor. Should it be based on 250.66?
I am bonding heavy wall conduit stubbed down, then changing to pvc underground, then back up in heavy wall again. And yes it is after the overcurrent device.