JFletcher
Senior Member
- Location
- Williamsburg, VA
Yes, it is. And you've seen HDPE conduit before, it is bright orange and comes on those giant metal reels, for outside plant use typically for line boring.
Burial of EMT
- Thread starter Mike106
- Start date
- Status
Yes, it is. And you've seen HDPE conduit before, it is bright orange and comes on those giant metal reels, for outside plant use typically for line boring.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
I just placed an order for 3200' of it - with conductors already installed in it (Cable in Conduit is what Southwire calls it). Will be running it between a well and two center pivot irrigation machines.
Plain HDPE is commonly run by communications companies (usually orange colored). But you also see it used a lot for power applications when installed with a plow or directional boring.
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
I have seen some bright orange stuff being buried for cable TV runs along roads. I wonder if it is the same stuff. I don't recall seeing it being used for regular electricity though.
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
For Chapter 3 wiring, unless you consider it a sleeve and not a raceway, "pulling the wire" before the raceway is complete would seem to be a violation.
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hbiss
EC, New York NEC: 2017
- Location
- Little Falls, New York NEC: 2017
- Occupation
- EC
There's RG/11 size cable in there that they run for house drops. Could also be fiber.
-Hal
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
When they (Fios) installed the fiber in my neighborhood several years ago, they pulled the fiber and another cable (a coax, I think) outside, not inside, an empty orange tube for future use.
Would it not be the same thing as AC or MC? Wiring placed in the raceway by the manufacturer.
Chapter 3 would prohibit field installation of wiring before the raceway is complete.
Coppersmith
Senior Member
- Location
- Tampa, FL, USA
- Occupation
- Electrical Contractor
Before I became an electrician I was a delivery driver for DHL. One day I was driving past a FiOS crew hand digging a trench and laying cable. I said to myself "this job sucks but at least I don't have to dig ditches." Shortly thereafter I joined the electrical apprenticeship and spent the next few months doing you know what. 
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I just remembered this: when I was a helper, we rewired the outside AC units at an apartment complex. Every one was set away from the building, every one had been wired in buried EMT, and every one had rusted EMT that crumbled like stale crackers where it still existed
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JFletcher
Senior Member
- Location
- Williamsburg, VA
Same stuff. It does not have the same OD as an equal trade size of PVC though, subsequently PVC fittings will not work on it, not that they are listed for the use anyway. I've used it for directional bore twice once an inch and a half and once in 4 in. Both were for 480 volt applications.
Handy tip: the ends of the piping tend to be oval shaped due to the weight and being wrapped around a reel. A large C-clamp placed about 6 inches from the end on the long side of the oval and a few turns of the clamp will make it circular again, necessary for the fitting to be applied.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
That most likely HDPE. Communications companies use orange mostly because that is a standard identification color for their type of utility when it comes to buried utilities identification.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
I didn't pull the wire it was factory installed, you still have to take off some outer covering to terminate just like with cable wiring methods.
- Status