reduce raceway size through fitting.

[lynch_family]

I was just reading an article on reducing raceway sive through a fitting and not through a box or conduit body. I cant find the code for it. I know it reads something like you cannot reduce raceway size during run. For example I see a lot of 1/2 emt reduced to 3/8 FMC, its done through a emt to nm cable fitting. Could some please ponit me in the right direction. I've gone all over article 300.

 

[don_resqcapt19]

I don't think there is a code rule that says you can't change the raceway size in min-run. I think that 300.15 would be the correct section, but it does not require a box or fitting for a raceway size change.
Don

 

[peter]

Somewhere, buried in one of the catalogs, there is such a fiting. For instance to reduce 3/4" EMT to 1/2". But why would you want to do this?

Changing from one type of raceway to another is easy. EMT to Flex fitting are standard.

You can achieve a lot of things with a rigid coupling and the appropriate connectors. And then toss in some reducing, threaded bushings.

But you may have problems fishing the run. Maybe go from smaller to larger?

~Peter

 

[resistance]

I'm with Don on this on. To add, I guess it would be a violation--and listed as such-- if you didn't meet conduit fill once reduced.