I am building a plant where we will be buying power at 69kv and reducing to 4160v for distribution and then down to 480v. I have (4) 4000amp 480v services (2 buildings with 2 services each). Normally I would use the service grounding table and install a 3/O for each, in this case is the new code saying that these should be considered equipment when grounding, in which case I would be installing 500mcm to steel, gnd rod, water ect.?