Terminating type TC Cable at Equipment

[jimgibson]

I am looking for NEC requirements related to the use of fittings when terminating TC cable into the top of the equipment. We have a supplier who's standard practice is to use a non-metallic bushing and route whatever number of cables will fit thru the bushing from the cable tray.

It seems to me a connector should be used to provide strain relief for the conductors and prevent entry of dust, dirt, etc. into the equipment.

Any help or comments would be appreciated.

 

[tom baker]

There are connectors made for TC. Take a look at a T&B or Crouse Hinds catalog.

 

[jimgibson]

The issue is not the available of connectors, but whether they are required by the NEC or UL. See my original post.

 

[don_resqcapt19]

Take a look at 312.5(C).

 

[jimgibson]

Don,
Your reference to 312.5(c) is exactly what I was looking for.
Thank you!

 

[weressl]

I am looking for NEC requirements related to the use of fittings when terminating TC cable into the top of the equipment. We have a supplier who's standard practice is to use a non-metallic bushing and route whatever number of cables will fit thru the bushing from the cable tray.

It seems to me a connector should be used to provide strain relief for the conductors and prevent entry of dust, dirt, etc. into the equipment.

Any help or comments would be appreciated.

• Connector to be approved for the purpose(single v.s. multiple), also connector installed per manufacturers' instructions
• Connector to maintain the environmental rating of the enclosure (NEMA3R, etc.)
• Connector to provide strain relief.

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