IMC as a mast

[augie47]

I was once told that IMC was more desirable tyhan RMC as a mast due to its having a greater resistance to bending. Does anyone know of data supporting that statement.

 

[ike5547]

I have always found it much easier to bend IMC. Unless the RMC in aluminum?

 

[ptonsparky]

Our masts are limited to a minimum 2" by utilites so we really don't have a problem. They will usually rip the meter off the wall and tear sheeting on the way to bending.

No data, just remember being told that IMC was stiffer when it first came out. We buy rigid when it comes to hand bending then change to IMC for strait runs.

 

[donselectric]

most here are 3" conduit
no imc....

 

[jrannis]

3" wow what part of the country are you located?

 

[M. D.]

230.28 does not prohibit the use of IMC so it could be used as far as the NEC is concerned ,..I would check with the utility to be sure.

I found this site put together by the pipe folks

....even though IMC is lighter and has a thinner wall thickness than rigid, it is just as strong. This is achieved through the steel processing during manufacturing. NEC? Articles 342 (formerly article 345) for Intermediate Metal Conduit and 344 (formerly article 346) for Rigid Metal Conduit contain identical installation requirements. Both products are UL listed and have been tested under similar conditions.

 

[iaov]

230.28 does not prohibit the use of IMC so it could be used as far as the NEC is concerned ,..I would check with the utility to be sure.

I found this site put together by the pipe folks

Great sight. Thanx MD!:smile:

 

[iwire]

All the utility specs I can recall required RMC for masts.

 

[SEO]

I agree with Bob check with your Utility company for their Regs. We have 2 different utility companys in my area and each one is different.