Originally Posted by Texas_Ranger
I already thought the bottom left ought to be a GFCI/AFCI breaker based on the curled white wire. However, the top right ones are (even to my outside view) clearly double poles, so I expected re-identified whites as Reno pointed out.

@leland: so you don't run a ground between meter and main panel then, only the neutral which is bonded [color:#CC33CC]to the enclosure at the main panel?
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That is correct,here. Bond at the meter OR the panel,Again,Concern about no visual bond to water Piping.
As far as 're-Identification', on the residential end,Very rarely to never.

This panel may just be a "change out",Therefore not requiring the AFCI,(it does look like 'very'new wires though) Bottom left is most likely the GFCI feeding the bathrooms,garage and outside receps.