Service bonding question

[Strathead]

It is amazing that we do things forever and then a minor issue comes up and we can't find the justifications and references. By we I mean me, because if I were a betting man, I would bet there are tons of people here who will be able to answer.

I do very little residential so meter/main combos are a rarity.

I have a Square D meter/main combo. The Neutral is bonded to the enclosure at the incoming meter terminal. There is a place to bond the grounding electrode conductor in the meter can. There is bus that runs to two isolated neutral bars in the panel section. There is no "service bonding" screw included and no typical hole to install one in the panel section.

So, I think this installation is OK, but I can't even find the code section that tells when it is and isn't OK to land the grounds and the neutrals on the same bar. Since the bond is in the same physical enclosure I think it is OK, but since the meter and the panel are separate sections I then question. As an inspector I would be concerned that I couldn't verify the bond once the meter was put in to service, but then I think that I couldn't verify proper grounding electrode conductor either and that is very typical. sooo. Any input?

 

[Strathead]

So, I found 250.142 (B)

 

[meternerd]

Sorry...I don't have the Code book anymore (retired), but as an inspector for the POCO, here's the way I read it. The GEC must be bonded to the service neutral and the service disconnect enclosure at the service disconnect enclosure. If the GEC is connected to a ground bus rather than directly to the neutral bus, the ground bus must be connected by bus bar or wire to the neutral. In other words, you can't use the "can" as the fault current route back to the service neutral. We did not allow the GEC connection to be in the sealed utility section because it is considered customer wiring and is therefore not allowed in the seal-able section. I found a LOT that were not done that way. Made a few enemies when I made 'em change it. POCO may have specific rules for GEC connection in a sealed utility compartment. NEC doesn't care, as long as it's in the service disconnect enclosure (I think).