3’ high mast

230.28 says "adequate strength" and it is not defined. That pretty much does leave it up to how the inspector feels and 110.2.


A structural engineer could calculate it and write you a report for $500 ;)...

If the guy is reasonable, he would probably accept whatever the utility has written in their guidelines as "adequate strength" unless it is a really unusual install, which this one clearly is not.

The AHJ might have an office policy or "code interpretation" they enforce by. If that policy is written down, you have no leverage at all... but you could keep the policy handy to stay out of trouble.

If it's not written down and the guy is not reasonable about utility specs... he's wrong, but you will not win this battle.
I’d say it’s his burden to prove to say that it’s not compliant
 
In most areas the utility will not hook up a service until after is passes City/County/State inspection. In this case they hooked it up before inspection? Seems odd.

In my area the utility's have specifications on mast size and support. The inspectors generally stay out of it and say to follow the utility rules.

The exception is if they don't feel the mast is tall enough to meet NEC clearances over roofs, pools, etc they call it. The unique thing about that is CA GO95 which is the rules the utility's follow in CA states that local jurisdictions have no say in overhead clearances. Their rules are more lenient on some items such as swimming pools. The inspectors always respond that the can enforce NEC rules on utility owned lines.
Our inspector says not to leave the cover off for his final inspection because sometimes the utility will go ahead and make it hot!
 
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