Could I get a little elaboration on why? Code sections would be a big help. I really don't see anything that says it is two services, except maybe for the fact the disconnects would not be interpreted as located together.
230-2 Number of Services. A building or other structure served shall be supplied by only one service unless permitted in (a) though (d).
For the purpose of section 230-40 Ex #2 only, underground sets of conductors , size 1/0 and larger, running to the same location and connected together at their supply end, but not connected together at their load end, shall be considered to be supplying one service.
as i see it, you need to define 1 or 2 services before you can really start on your other Q's.
why does the code make OH & UG a difference here, i'm sorry i can't say.
If you have the handbook, figure 230.2D shows the situation (kinda) I am talking about with an overhead drop and calls it one service.
I know that by 230-2 specifically saying that underground 1/0 and larger connected at the supply but not at the load is considered one service, it is implied that OH 1/0 or larger would not be considered one service, but the Code does not explicitly say that it is not.
Thanks for the replies sparky. It seems I'm not getting a lot of replies on this and other BB's is my question unclear? If so, just follow the idea of service entrance conductors being connected on the supply side but not the load side. I need to approve or not approve a set of prints very soon and I really appreciate everyone's input into these strange situations even if it is just an opinion with no real code to back it up.
Your examples are multi-occupancy buildings. Which is NEC acceptable. Washington state's electrical law states, "a service drop terminates in the utility's meter equipment." Look in the NEC book for the definition of service. I consider the reference to equipment in the definiton to include the metering equipment. I guess the best thing for you to do is ask your local AHJ.
Thanks for the replies. You're right, my first example is one occupancy and the later examples are multi occupancies. Are you saying the same arrangement of service would be considered one service if it is multi occupancy, and two services if it is single occupancy?
And yes there will be a difference between Wahington state and here as the service drop ends here at the point of attachment to the building, so we may be comparing apples and oranges based on different definitions.
Last, I am the AHJ trying to make sure I look at this properly and approve or not approve the plans based on NEC intent. I think I will approve it with the info I've got, (thanks everyone), but I still am not sure if it is one service or two.