Coiling 40 ft of 2/0 conductors in a Jbox. Any code violations?

[Fulthrotl]

Also, mind the box fill issues. 2/0 is not small and each wrap of that coil will count as two conductors. 40' of 3 phase cable coiled in one box, the box volume is likely larger than you might imagine. I'm not going to do the math but I'm thinking that 48x48x12 might Be the MINIMUM size, if that even works.

you've got 120' of 2/0 jammed in there.

if it's a 3' x 3' box, each turn of the thing will be about 9', if you
are lucky. but it's not a perfect world, so assume 5 turns of all
three conductors. ya gotta do the neutral as well.

15 turns in a 3' box. i still want tickets to watch. i'm sick that way.
if you got them all taped together, and ty wrapped as you go,
it'll fit.

but still.... resistive loads are ok, but i'd think about hooking a
motor load to a choke.

 

[Barbqranch]

How about just running 2 twenty foot conduits to a box, or a couple of conduit bodies?

 

[wwhitney]

How about a nice octagon made from metal wireway?

Cheers, Wayne

 

[kwired]

Also, mind the box fill issues. 2/0 is not small and each wrap of that coil will count as two conductors. 40' of 3 phase cable coiled in one box, the box volume is likely larger than you might imagine. I'm not going to do the math but I'm thinking that 48x48x12 might Be the MINIMUM size, if that even works.

Fill is an issue, but we don't exactly have "fill requirements" in the NEC for conductors larger then 6 AWG either. All NEC requires for the larger sizes is 6 x nominal raceway size for angle or U pulls and 8x for straight pulls.

2/0 x 4 conductors - probably can fit 2" in 2" raceway, 2.5" for sure so only 16" or 20" long box is all that is needed for a straight pull. Could be only 4 inches wide and 4inches deep - try fitting 40' of extra conductor in that

48 x 48 x 12 I picked when I posted because without doing any calculating, I figures was likely able to hold it, though it probably would still be fun to watch someone like Fulthrotl said try to do it. 12 inches deep would hold several "layers" of loops.

If I were to do it, I'd want a splice block in there, as you probably never get the loops to fit just right without cutting conductors.

Will it cost more then a line reactor - IDK.

If not too late, I'd want the source to be moved 40' further away, take a longer route to the source, coil some conductor at the source if room there, etc.

 

[electrofelon]

We did a 1 meg solar job last year where the designer thought a CT cabinet was too expensive. I guess split core CT's were too expensive also. So.....I dont remember the exact specifics, but it was something like a 48x48x16 box, 5 sets of 500 looping through it, 40 feet on either side of the box. Did I mention they gave us solid core CT's? :rant: If only fulthrotl was there, at least we would have offered him an outrageously priced spectator ticket.....and he would have paid.