Sizing trough for service mast

[2Broke2Sleep]

So I plan on installing 3x 600kcmil conductors in 3.5" GRC into a trough on top of 4 meter cans. I will be tapping into a 6-entry polaris tap to feed each leg. I am confused on the minimum size trough needed when I look at table 312.6 (A). Since I am using a polaris tap I want to make sure the "Wires per terminal" is still one and not 6..... That would make minimum width of 8"

 

[2Broke2Sleep]

376.23 Insulated Conductors (A) Deflected Insulated Conductors
"Where insulated conductors are deflected within a metal wireway........dimensions corresponding to one wire per terminal in Table 312.6 (A) shall apply"

 

[Canton]

That is the way I read it also. A 600kcmil would need an 8”x8” trough.

In practice, I usually always install a 12”12” minimum

 

[augie47]

Assuming you would want your polaris conectors in a vertical position a 6 port 600 seemingly is a bit long for a 8" wireway.

 

[2Broke2Sleep]

Not my prettiest work, but I was able to fit a 6' gutter in the space after all, which made it compliant with the 6x rule for conduit entries. I'm working on getting a guy/tie down kit for that heavy mast!! Also, I was in a hurry and ran a GEC from each Meter can down to the GEC, I know it was excessive but I forget the more minimalist way to tie them in???

 

[kwired]

Not my prettiest work, but I was able to fit a 6' gutter in the space after all, which made it compliant with the 6x rule for conduit entries. I'm working on getting a guy/tie down kit for that heavy mast!! Also, I was in a hurry and ran a GEC from each Meter can down to the GEC, I know it was excessive but I forget the more minimalist way to tie them in???
View attachment 2563323

The more minimalist way might be more subjective to copper thieves so this maybe wasn't a bad installation decision anyway?

Aux gutter/wireway below the meters and disconnects maybe looks much cleaner? Can't have service and non service conductors in same raceway but can have them in same enclosures. If considering the gutter/wireway to be a raceway, then you pass pass those conduits going to underground through the wireway to effectively create a barrier within the wireway.

 

[augie47]

Interesting... Not know all the facts but our inspectors would likely have a 230.72 grouping problem

 

[kwired]

Interesting... Not know all the facts but our inspectors would likely have a 230.72 grouping problem

I thought about that as well. If it is multi tenant......maybe is ok? need more details for certain to make that call though. Kind of thinking though if two are at tenant space and the other two are not that maybe isn't right. Certainly can be more confusing if needing to disconnect in emergency situations, and kind of makes sense to either put them all in the tenant space or all them together but not a mixture of both.

 

[2Broke2Sleep]

To shed some light, initially inspector didn't like the disconnects being separated (months ago) but he said it's fine because of the tight space. The leftmost part of the picture is actually the edge of the wall and to the right of the door is about 6' of wall space that I put the other two disconnects. The two disconnects on the left actually feed a separate house underground which have additional two disconnects on the outside wall of them (same ones).