romex

[liquidtite]

the instal that we did was not inspected I was wondering if it would pass if it was my boss said it has befor. we installed a disconnect for a outside condensor unit. we ran 10-2nm from the panel inside a chase and ran down the side of the house using the raseway that the hvac guys use to conseal their lines,it looks like a fake gutter .from the bottom of their raseway we sleved the romex through liquidtite and intered the disconect. my question was is that raseway considered a damp location wouldnt you have to use uf?anouther question i have is isnt nm only permisible for use in dry locations then why can you run it in pvc alongside a building or house?

 

[Ponchik]

Your installation is a violation.
you are correct the NM cable is good for dry location. The conduit or raceway outside of the building is considered a wet location so no NM allowed in it.

 

[LEO2854]

the instal that we did was not inspected I was wondering if it would pass if it was my boss said it has befor. we installed a disconnect for a outside condensor unit. we ran 10-2nm from the panel inside a chase and ran down the side of the house using the raseway that the hvac guys use to conseal their lines,it looks like a fake gutter .from the bottom of their raseway we sleved the romex through liquidtite and intered the disconect. my question was is that raseway considered a damp location wouldnt you have to use uf?anouther question i have is isnt nm only permisible for use in dry locations then why can you run it in pvc alongside a building or house?

You cannot us romex in a wet location.

 

[mike7330]

I would say its a wet location, and you can't use nm in that kind of installation.

 

[LEO2854]

Here is the code Article.


334.12 Uses Not Permitted.

(B) Types NM and NMS. Types NM and NMS cables
shall not be used under the following conditions or in the
following locations:
(1) Where exposed to corrosive fumes or vapors
(2) Where embedded in masonry, concrete, adobe, fill, or
plaster
(3) In a shallow chase in masonry, concrete, or adobe and
covered with plaster, adobe, or similar finish
(4) In wet or damp locations

 

[LEO2854]

I would say its a wet location, and you can't use nm in that kind of installation.

Anything out doors is considered a Damp/wet location so you have to use wire made for wet locations.

 

[mike7330]

Anything out doors is considered a Damp/wet location so you have to use wire made for wet locations.

Yes, You are correct! I was just trying not to beat up on the op to much...

 

[LEO2854]

Yes, You are correct! I was just trying not to beat up on the op to much...

Well this is a good place for him to learn .

In my opinion they should make a change to romex so it can be used in this application.:thumbsup:

 

[liquidtite]

thats what i figured but i see romex run inside pvc along the side of buildings all the time so i was confused.i knew outside in conduit is a damp location but i wasnt shure if their was an exception to the nm only used in dry location if it was in conduit bc i see it so much thanks for clearing it up for me

 

[don_resqcapt19]

300.9 Raceways in Wet Locations. Above grade. Where raceways are installed in wet locations abovegrade, the interior of these raceways shall be considered to be a wet location. Insulated conductors and cables installed in raceways in wet locations abovegrade shall comply with 310.10(C).

 

[liquidtite]

so pvc above grade is caonsidered a wet location even if its under a sophet

 

[liquidtite]

....

 

[Ponchik]

so pvc above grade is caonsidered a wet location even if its under a sophet

it is a judgment call. it may be considered a damp.

 

[Ponchik]

i am wondering, and this probably something that seasoned electricians can answer. From your experience, lets talk theory, will the NM cable get damaged if it was installed outside of the building, in a conduit, under the eave. Besides it being a NEC violation is the manufacturer trying to sell us more stuff or the NM cable does get damaged.

Don't get me wrong i have seen some damaged NM cable that has been cooking on the roof for years, I am not talking abouyt extreme conditions. With the same token i have seen NM cable installed underground that has been there for 15 years and the jacket is still fine.

I am just wondering.

 

[ActionDave]

Nevermind.

 

[ActionDave]

i am wondering, and this probably something that seasoned electricians can answer. From your experience, lets talk theory, will the NM cable get damaged if it was installed outside of the building, in a conduit, under the eave.

I am just wondering.

I don't think it is a problem. I have romex in the ceiling of my porch. If it were in PVC, above or or below the finished ceiling I'm sure it would be fine.

 

[acrwc10]

I don't think it is a problem. I have romex in the ceiling of my porch. If it were in PVC, above or or below the finished ceiling I'm sure it would be fine.

Try looking at it like this, if you wouldn't run an exposed NM in an exterior location, you can't run it inside of a conduit in the same location.

 

[ActionDave]

Try looking at it like this, if you wouldn't run an exposed NM in an exterior location, you can't run it inside of a conduit in the same location.

But will the NM cable fail if it is inside a conduit that runs outside the building?
I don't think so. All things being equal I would say "No "

Is it allowed? No.

 

[George Stolz]

I'll stir the pot.

What says the interior of this space is a wet/damp location?

 

[jumper]

I'll stir the pot.

What says the interior of this space is a wet/damp location?

You referring to the fake gutter?