Changing conduit size

[session88]

Is it a code violation to change sizes in the middle of a conduit run (rigid)?
Or is it just a bad practice to do so?

 

[jusme123]

Is it a code violation to change sizes in the middle of a conduit run (rigid)?
Or is it just a bad practice to do so?

No its not against code, in fact, its done quit often if you are referring to less conductors as the conduit run continues

 

[iwire]

The NEC does not prohibit changing sizes in the middle of a run of course that assumes you maintain proper conductor fill for the smaller raceway.

 

[session88]

So it is ok to reduce a conduit size in the middle of a run at a coupling with an RE bushing, or is a condulet or j-box required when changing sizes?

 

[Split Bolt]

Didn't drag the NEC out, but I would think it's OK in the middle of the run. They make all kinds of neat adapters for this in PVC.

 

[nakulak]

not a violation. depending on the application, might be bad practice (but not always)