Small Bushing Usage

[Andy Delle]

Example, two boxes tight side by side, box mounted on an appliance (furnace) with wires going inside, track light live end to ceiling box, strip Lights mounted end to end in a continuous row.

In these and similar cases is a 1/2in bushing required. The wires are not exposed and in most cases the metal is thick enough not to act like a knife.

I think for the cost, why not just use one but what do you think?

 

[LarryFine]

The threaded end of a rigid conduit should be bushed, but fittings such as connectors and chase nipples need not be.

 

[infinity]

If you're going through a KO you need a chase nipple or similar fitting.