Have seen this more often lately on plans around here. I guess some lazy engineering type are using a canned drawing instead of doing thier job of design for EACH project.
I just look up our POCO's spec book to see how they want the service set up. In this area,the EC is responsible for the primary conduit, transformer pad per the POCO's drawings, the secondary conduit and wire and a CT can properly sized, also the installation of the meter socket and CT's. We also do all the grounding.
By the way that triangle ground grid frequently fails testing in some of our soils. It has been the subject of some very intense discussions about ground resistance specifications and who is going to pay for the fix.
The 4 1/2" conduit would become 4" with an alternate for 5" in my proposal.
