NolaTigaBait
Senior Member
- Location
- New Orleans,LA
we get like 60 inches a year of rain
Opinions sought NM inside conduit outside
- Thread starter ivsenroute
- Start date
- Status
Sometimes the NEC is wrong.
Sure they can.
One thing that slides by here all the time is rooftop AC circuits.
Up until the late 80's early 90's, everyone here used SE cable for the AC circuits. When #8 and #6 NM came onto the market, everyone started using it instad of SE.
Typically, about 2' of cable stubs up thru the roof and hits the AC disconnect but no one really cared about it. There MAY be a specific local variance but I think it was basically a non issue and no one thought twice about it.
NolaTigaBait
Senior Member
- Location
- New Orleans,LA
What?...this is blasphemy
Jim W in Tampa
Senior Member
- Location
- Tampa Florida
They would need uf for everything to do any good.
NolaTigaBait
Senior Member
- Location
- New Orleans,LA
exactly...with majority of the houses raised, most wire is run underneath-which would be considered a damp location, but it's legal to do so..uf would be a pain
electures
Member
- Location
- South Jersey
The inside of a conduit located outside is considered a wet location. NM-B is not permitted in a wet location.
electricmanscott
Senior Member
- Location
- Boston, MA
Six people here say you are wrong.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Those six people are wrong. A conduit's interior is not a location.
The conductors inside a conduit that is outdoors are also outdoors.
- Location
- Illinois
- Occupation
- retired electrician
Not everyone saw it that way and that is the reason behind the new rule for the 2008 code.
cschmid
Senior Member
- Location
- Northern cold country
my question is why do you run nm through conduit when you can instal thhn instead and advoid all the hassel. you can save partial rolls for just these types of installs?
electricmanscott
Senior Member
- Location
- Boston, MA
I was not one of the six.
Minuteman
Senior Member
- Location
- The Sooner Nation
In the '08... No.
In the '02 cycle that we are still under... Yes.
In the '02 cycle that we are still under... Yes.
Minuteman
Senior Member
- Location
- The Sooner Nation
For my part, under the '02, I'm guilty of installing NM in short runs (maybe 6' or less) in EMT or PVC, when upgrading panels from a bedroom closet to the the outside. Also, I have installed short stub outs into A/C discos.
Let the flogging begin. :smile:
cycotcskir
Senior Member
A lot of small time shackers/side job jockeys don't have room for THHN in the trunks of their car.
MarkyMarkNC
Senior Member
- Location
- Raleigh NC
People used the NM through conduit because it was already there. We used to leave enough NM hanging outside the house to make up the whip to the AC unit on the trim. Less trips to the truck. More efficient. Less labor.
If it was still legal I would still do it this way.
cschmid
Senior Member
- Location
- Northern cold country
interesting. I used to buy the premade whips and always had short pieces of thhn on the truck.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Was there a W somewhere in that THHN? :wink:
cschmid
Senior Member
- Location
- Northern cold country
you make good point when I bbought the whips premade I do not remember if I ever pulled the wire to see what they used.
I call it thhn when it has a thermoplastic covering and is rated thhn or thwn. my bad I keep forgeting that we need to be specific here.
I call it thhn when it has a thermoplastic covering and is rated thhn or thwn. my bad I keep forgeting that we need to be specific here.
- Status