Strathead
Senior Member
- Location
- Ocala, Florida, USA
- Occupation
- Electrician/Estimator/Project Manager/Superintendent
The above cited code section really bugs me. Here is why. I believe the intention of the reference is predominantly to prevent damage to the conductors. The part I take exception to is "The distance between raceway entries enclosing the same conductor shall not be less than six times the metric designator (trade size) of the larger raceway" Here are three scenarios:
Conductors enter the lower left corner on the bottom and exit the lower left corner west wall. The condutors have a well formed 270 degree loop who's diameter is almost the size of the box and smoothly goes out the other conduit. In my opinion this is actually THE BEST, LEAST STRESSFULL installation of a wire pull there can be. Far better on the wires than pulling to a conduit exiting the box 6 times the diameter away on the same wall.
Conduits are set 3 times apart on angle walls, and the conductor is spliced with a butt splice that makes the center of the conductor. stiff. This is no longer the same conductor so it can be installed in these two conduits, but there is a definite possibility, depending on the butt splice length and the taping, that this could put strain on the conductors, the crimp, the taping, etc.
Conduits are 6 times apart, all legal like and a dummy pulls it too tight cousing the outgoing wire to be right angled in to the exiting conduit.
In my opinion the last two could be dinged for violating the bend radius of the wire, but that is not what this section states. This code section should merely require that the approved or manufacturer recommended bend radius of the conductors will not be exceeded during or after installation, since I think that is the goal.
Is there anyone out there motivated enough to actually make this, or a similar suggestion to the code board, or barring that tell me where my perspective is in error?
Conductors enter the lower left corner on the bottom and exit the lower left corner west wall. The condutors have a well formed 270 degree loop who's diameter is almost the size of the box and smoothly goes out the other conduit. In my opinion this is actually THE BEST, LEAST STRESSFULL installation of a wire pull there can be. Far better on the wires than pulling to a conduit exiting the box 6 times the diameter away on the same wall.
Conduits are set 3 times apart on angle walls, and the conductor is spliced with a butt splice that makes the center of the conductor. stiff. This is no longer the same conductor so it can be installed in these two conduits, but there is a definite possibility, depending on the butt splice length and the taping, that this could put strain on the conductors, the crimp, the taping, etc.
Conduits are 6 times apart, all legal like and a dummy pulls it too tight cousing the outgoing wire to be right angled in to the exiting conduit.
In my opinion the last two could be dinged for violating the bend radius of the wire, but that is not what this section states. This code section should merely require that the approved or manufacturer recommended bend radius of the conductors will not be exceeded during or after installation, since I think that is the goal.
Is there anyone out there motivated enough to actually make this, or a similar suggestion to the code board, or barring that tell me where my perspective is in error?