ENT use in Commercial Buildings

[ron]

I was surprised when looking this morning that Article 362 allows for ENT use in many building types and in most application typical to a regular building (finished / concealed installation).

Other than when there is a project spec limitation, does anyone use ENT (smurf tubing) http://www.carlonsales.com/flexplusblueentnmt.php on purpose to reduce install cost?

 

[texie]

I was surprised when looking this morning that Article 362 allows for ENT use in many building types and in most application typical to a regular building (finished / concealed installation).

Other than when there is a project spec limitation, does anyone use ENT (smurf tubing) http://www.carlonsales.com/flexplusblueentnmt.php on purpose to reduce install cost?

Real popular in some regions in concrete high rise construction. Miles of it in slab turning up in walls.

 

[Fulthrotl]

I was surprised when looking this morning that Article 362 allows for ENT use in many building types and in most application typical to a regular building (finished / concealed installation).

Other than when there is a project spec limitation, does anyone use ENT (smurf tubing) http://www.carlonsales.com/flexplusblueentnmt.php on purpose to reduce install cost?

yep. lots of it used around here.

 

[Chamuit]

Used quite a bit in our data centers for Cat6 and Fiber runs. Not for any 120V, or higher, runs.

 

[ron]

Used quite a bit in our data centers for Cat6 and Fiber runs. Not for any 120V, or higher, runs.

I've seen it a lot for Chapter 8 stuff, but not line voltage.

 

[peter d]

I rarely see it used around here. Then again, we don't generally have the type of construction that warrants it (poured in place.)

 

[JFletcher]

Used a spool or 50 of the 1000' rolls of the stuff myself for v/d/v (hotels). Never seen it for line voltage stuff tho that can be run in it.

We installed it as a "future proofing" to v/d/v cable. The bonus (to us) is that once it's in, you dont have to beat the insulation/drywall guys to get cable in - timetables arent as critical.

I dont know how installing ENT would reduce costs unless it was being installed instead of EMT.

 

[sparkyrick]

We use ENT all the time for both LV and power in commercial buildings. My only gripe is it's a pain to work with when it's cold and you need to strap it more frequently than EMT.

 

[JFletcher]

We use ENT all the time for both LV and power in commercial buildings. My only gripe is it's a pain to work with when it's cold and you need to strap it more frequently than EMT.

Yeah,it's supposedly good to like 5*F but below 35*, peeling off a section from a spool reveals a microscopic factory crack which propagates, fails under tension, then a long coil comes barreling toward either your face or groin.

Having to secure the stuff parallel to TJIs/trusses every 3' is time-consuming as well.

Learned the hard way early on that the snap-in box fittings are for plastic boxes only. :ashamed1: