code compliance
- Thread starter dbaird1
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LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Manufacturers are usually the best source for design/rating documentation.dbaird1 said:
I've never heard of a conduit body with gasket that was not outdoor rated.
Code aside, I would think that aluminum is better than steel on a roof-top.
walkerj
Senior Member
- Location
- Baton Rouge
Why would it have a gasket if it wasn't designed to withstand moisture:-?
The only thing I can think of is....
you buy a LB and install it....
then at some later time you buy the cover and gasket and install them...
at which point you realize the LB is a set-screw variety but the wire is already pulled and landed......
maybe the inspector won't notice :roll:
If the LB is threaded, wouldn't it be outdoor rated based on that alone?
you buy a LB and install it....
then at some later time you buy the cover and gasket and install them...
at which point you realize the LB is a set-screw variety but the wire is already pulled and landed......
maybe the inspector won't notice :roll:
If the LB is threaded, wouldn't it be outdoor rated based on that alone?
walkerj
Senior Member
- Location
- Baton Rouge
Standing by....
Sorry for the delay....
These pictures were shot at the job trailers:
When I opened the LB, water just flowed - might as well have been a plumbing line
The "T" apparently drianed 99% of it's contents into the LB.
Both condulets had covers and gaskets....why was there so much water?
The EMT had been in place for only about 2 months.
[I do notice the fittngs don't have the tell-tale green tagging...why? I don't know? This was a repair job for us after the fact]
My question is:
Does a gasket really do anything other than just keep the water inside the fitting/pipe run?
These pictures were shot at the job trailers:
When I opened the LB, water just flowed - might as well have been a plumbing line
The "T" apparently drianed 99% of it's contents into the LB.
Both condulets had covers and gaskets....why was there so much water?
The EMT had been in place for only about 2 months.
[I do notice the fittngs don't have the tell-tale green tagging...why? I don't know? This was a repair job for us after the fact]
My question is:
Does a gasket really do anything other than just keep the water inside the fitting/pipe run?
electricmanscott
Senior Member
- Location
- Boston, MA
dbaird1 said:
So tell him yes.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
We'd have to see the rest of the install to see how the water got in, but it does show why wires have to be W rated even in conduit outdoors.celtic said:When I opened the LB, water just flowed - might as well have been a plumbing line
The "T" apparently drianed 99% of it's contents into the LB.
Both condulets had covers and gaskets....why was there so much water?
My question is:
Does a gasket really do anything other than just keep the water inside the fitting/pipe run?
I drill two 1/8" holes in the lowest places, fittings, and/or boxes in everything I install outdoors.
cadpoint
Senior Member
- Location
- Durham, NC
I thought there is a code article for both, induce a drain(away from service) and use green fittings for outdoor use, 08'...
Regarding threaded or not, as long as it meets 110.3(B) it'll be okay. As far as threaded, or not, I try to remember that form seven covers have a "7" shape to catch the inside lip, form"8" has a figure 8 race track design on it.
celtic said:Sorry for the delay....
These pictures were shot at the job trailers:
When I opened the LB, water just flowed - might as well have been a plumbing line
The "T" apparently drianed 99% of it's contents into the LB.
Both condulets had covers and gaskets....why was there so much water?
The EMT had been in place for only about 2 months.
[I do notice the fittngs don't have the tell-tale green tagging...why? I don't know? This was a repair job for us after the fact]
My question is:
Does a gasket really do anything other than just keep the water inside the fitting/pipe run?
Water usually builds up in conduits due mainly to condensation (and a lot can easily build up in a short time) and probably to a lesser extent from water wicking in throught the threads on the condulet bodies and fittings.
On the conduit run to my attic here at the apt. I cut a small notch in the bottom of the gasket on the LB at the panel to allow water buildup to drain.
A samall hole at the low points as suggested before is also a good idea, if the condulet body is above any possible pooling of water.
William L. Hussey
New member
a/u coduit bodies wont rust for sure, over time Ive noticed the steel covers along with the screws corrode rapidly. ESP. near tidewater regions.LarryFine said:
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