Her's a question, think about a strip mall with 6 stores. There is a main service pipe which runs into a trough. There is 6 meters all nippled off of the trough with the service cable (SEU Type)going into each store. Inside of each store is a service panel with a main breaker. Considering all of the wire sizes is correct and all of the grounding conductors are correct. The question comes, Can you connect the neutrals and the #6 exterior grounding conductor and the interior grounding conductor (that goes to the interior water pipe and is sized as per the service)inside of the trough? Can they all be connected with a split bolt connector? Or can they all be connected to a terminal bar inside of the trough?
When I saw guys do things like this they used the "X" hole Ilsco or similar tap and I was OK with it. (a virtual terminal bar IMHO) I agree with George, If the GEC is continuous and the neutrals tap off with split bolts it is still OK.
Thank you for the replies, however I think the question that the EC was trying to ask me, Is it OK to make the connection between the neutrals and GEC in the trough, or do you have to bring the GEC inside to each service panel through out the whole strip mall? BTW, we are still using the 2002 NEC,(I haven't even opened the 2005 yet.) We will assume that the GEC is unspliced, but what about accessibility? If the POCO locks the trough is it still accessible? I think this was also one of his concerns.
Well that is one of the questions the EC asked me. Would I accept the meter pan ( Or in this case a trough) that can be locked by the Poco, "Accessible"? My first thought was, No. But on second thought the code doesn't say "Readily Accessible". SO, is the inside of a meter pan (or trough)"Accessible"? Well maybe, yes.
I suppose it really depends on your PoCo. Around here FPL is OK with a licensed contractor cutting a seal if they have a reasonable story. I did it as a homeowner with a permit. They told me I could have also done it with a "bad main breaker" story or a "tighten up the neutral/ground) story if I said I was a contractor.
I do have a way of getting information out of the girls on the phone tho.
This year hurricanes were nothing on this coast. We had a couple go 100 miles south of us but no big deal. It has been raining a lot so Judy is having a time getting her footers poured but other than that she is rolling right along. Since she started her new community in Feb she has 76 out of the ground and 18 are in final trim ... without water or power. Prairie building!