Splices in junction boxes

[fcl]

Hello:
314.28 A 2 refer that the distance between opposite wall of the box or conduit body must not be less than six time the trade size of the largest raceway in a row to splices, Angle and U Pull. Now, if we have an straight pull with splices the distance is six times too? Or eight?
Thanks

 

[qcroanoke]

Hello:
314.28 A 2 refer that the distance between opposite wall of the box or conduit body must not be less than six time the trade size of the largest raceway in a row to splices, Angle and U Pull. Now, if we have an straight pull with splices the distance is six times too? Or eight?
Thanks

Eight

 

[jusme123]

 

[Carultch]

Hello:
314.28 A 2 refer that the distance between opposite wall of the box or conduit body must not be less than six time the trade size of the largest raceway in a row to splices, Angle and U Pull. Now, if we have an straight pull with splices the distance is six times too? Or eight?
Thanks

Eight for a straight pull, six for an angle pull.

The deal is that when you make a straight pull, it takes 4 bends in a wire to get it out of the box, pull the excess slack, push it back in to the box, and thru the exit raceway. When you make an angle pull, it only takes 3 bends of the wire to do this.

 

[iwire]

I will point out those minimum sizes are pretty small when dealing with large conductors.

For instance a set of four 600 kcmil in 4" raceway will require a minimum 24" box for a straight pull. That will meet code but good luck closing the wire into it.

For that type of pull I would, and have used a 48" section of wireway as the pull point.

 

[fcl]

Yes, everything is clear, but when in two conduits, one in front of the other, (one wall in front of the other wall), the wires into the box from each conduit and are spliced inside the box, the conduits are in line, like an straight pull, but in this case isn't a pull, I don't need make bends to the wires, just splices. Because I going to extend an existing feeder, That was my question.

 

[iwire]

Yes, everything is clear, but when in two conduits, one in front of the other, (one wall in front of the other wall), the wires into the box from each conduit and are spliced inside the box, the conduits are in line, like an straight pull, but in this case isn't a pull, I don't need make bends to the wires, just splices. Because I going to extend an existing feeder, That was my question.View attachment 14233

The splices don't change any box size requirements when dealing with larger conductors.

 

[Ponchik]

For post #6 the distance X is 8 times the size of the largest conduit.
Whether straight pull or just a splice box it is MINIMUM 8 times.

 

[don_resqcapt19]

If you make a splice in the enclosure, even though the two conduits enter the opposite end of the enclosure, the enclosure sizing is per 314.28(A)(2) or 6 times the trade size of the raceway. The rule in 314.28(A)(1) only applies where the conductors are pulled through the enclosure without a splice.

314.28(A)(2) Angle or U Pulls, or Splices. Where splices or where angle or U pulls are made, the distance between each raceway entry inside the box or conduit body and the opposite wall of the box or conduit body shall not be less than six times the metric designator (trade size) of the largest raceway in a row. ...