service entrance conductors

[MARIUS26]

Hi ,
I am working on a multi family building and I just fail the inspection.
I have two meter stacks . One two meter stack 200A and the other one is a three meter stack 300A .I install on the top of them a trough and from the trough I was running 4in rigid to the overhead.
The inspector is telling me that I am not allowed to have two sets of service entrance conductors in the same conduit.
There are no splices in the trough each set of cables are going to separate enclosure.4/0 aluminium to 200A meter stack and 350 mcm to the 300A meter stack. They are telling me that I am running conductors in parallel but is not.
The cables are ending in different enclosures.
What do you think what I am doing wrong?
Thank you,
Marius Galetus

 

[Dennis Alwon]

My guess is the inspector is misinterpreting 230.7 which doesn't allow non - service conductors in the same raceway as service conductors

 

[infinity]

In reading his description I don't see where he has anything other than SEC's in the wireway. He has two sets of SEC's (not parallel sets) in a single 4" conduit running from the POCO drop into the wireway and from there he goes unspliced into two separate meter stacks.

 

[Dennis Alwon]

In reading his description I don't see where he has anything other than SEC's in the wireway. He has two sets of SEC's (not parallel sets) in a single 4" conduit running from the POCO drop into the wireway and from there he goes unspliced into two separate meter stacks.

I agree. I see nothing wrong with the install. I also agree it is not a parallel run but if it were it still would be compliant. The only issue is if the op de-rated for the number of wires in the conduit

 

[infinity]

As Dennis stated you need to look at the more than 3 CCC's in the single raceway. If you had run two conduits up to the POCO drop (one from each meter stack) instead of one nothing would change except for the more than 3 CCC's.