Bob
In California it is a universal condition of service that the Poco owns -- total clear title -- the conductors as a condition of service.
Check the fine print. You'll find that boilerplate in all utilities. Why? The MPOE is the legal liability cross over point.
The print just doesn't matter.
BTW, the secondaries on the EE's print were almost certainly transcribed from the ulitities' print. The 'committment letter' is not typically shared with the field troops. Many electricians have never seen one since it will have been sent to the EE. He is expected to incorporate their requirements in his prints.
Now our buddy screwed up, maybe. The owner is trying to shirk the tab.
Make the Poco the heavy. Put it to them, what size conductors are now required?
BTW, our Poco has these values already posted to their 'book'. You might be surprised to find that they will not require any increase in conductor size. Generally the Pocos use undersized conductors relative to the NEC.
Simply put only the Poco calls the shot. No one else, and you're not getting around them. But their conductor sizing is normally quite favorable. Don't sweat it.
