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Running three #4 wires 150' underground to a new barn.

I ended up 12' short of the disconnect switch. is it okay to mount a weather proof junction box on the exterior wall of the barn and then splice them to feed over to the disconnect switch.

If this is okay, how high above the ground should the junction box be?

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    Oh, the powers of textpad! Has that softened it enough for everyone? – Fiasco Labs May 26 '15 at 21:55
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    Are you pulling individual conductors in conduit, or running UF cable? – Tester101 May 27 '15 at 1:32
  • Pulling individual conductors in conduit – GP Barn May 27 '15 at 19:40
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Since you are pulling in conduit, you don't need a full blown box for this job. Simply use an appropriately sized, weatherproof conduit body (a Type C is what you want, by the way) made from the same material as your conduit.

However, you will need to use the 314.28(A)(2) rule that the body must be no shorter than six times the distance from the entrance to the opposite wall/exit in order to size the body correctly, as you are splicing 4AWG or larger conductors in the body.

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