Wet Location EMT Fittings

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reboldhack

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Maybe I'm late to the show on this, but some local inspectors are now saying that all new emt installations, using conduit larger than 1" in exterior (wet) locations will not be approved. This is due to fitting manufactures losing their raintight UL listing for emt compression fittings larger than 1". Has anyone else run across this issue?
 
Re: Wet Location EMT Fittings

New Mexico has posted the problem on their Construction Industries website, and claim to have outlawed unlisted connectors. The State Inspectors are not enforcing it yet, mostly because of the complaints from Contractors.

Jim T
 
Re: Wet Location EMT Fittings

I've seen this topic 100 times, but I just started wondering:

What specific rule requires "raintight" connectors for EMT in a wet location?

The reason I ask, is I thought the interior of any conduit in a wet location is considered a wet location. That's why THWN or a similar "wet" type wire is required. Wrong??

Steve
 
Re: Wet Location EMT Fittings

I still fail to understand this issue. Rigid conduit couplings are less raintight than standard EMT compression couplings, but we can use rigid in wet locations.
Don
 
Re: Wet Location EMT Fittings

Thanks for the info, Larry,
I just checked with the Bridgeport factory and they are one of the only manufacturers with the UL approval listing up to 2" EMT.
 
Re: Wet Location EMT Fittings

Steve and Don, Those are very good points. I find water inside exterior conduits and boxes rather frequently. Rain tight shmain tight. :p

And what is arranged to drain supposed to mean, it's a given that ????? :confused:
 
Re: Wet Location EMT Fittings

Originally posted by steve66:
I've seen this topic 100 times, but I just started wondering:

What specific rule requires "raintight" connectors for EMT in a wet location?

The reason I ask, is I thought the interior of any conduit in a wet location is considered a wet location. That's why THWN or a similar "wet" type wire is required. Wrong??

Steve
Click to expand...
The rule in my 2005 book is 358.42 which says;

Couplings and connectors...Where installed in wet locations, they shall comply with 314.15(A).

So we turn to 31.,15(A) which says;

Damp or Wet Locations. In damp or wet locations, boxes, conduit bodies, and fittings shall be placed or equipped so as to prevent moisture from entering or accumulating within the box, conduit body, or fitting. Boxes, conduit bodies, and fittings installed in wet locations shall be listed for use in wet locations.

Damn...there it is...wet locations. However, I agree completely with you that the inside of the pipe is considered a wet location and that's why the 'W' designation in the wire. I think some overzealous person got to the code making panel to change the rule so that it's difficult to comply. Up here in the Pacific NW, there ain't a thing you can do to make it dry within the conduit or boxes located outside. I even drill holes in WP boxes, because you cannot seal them up good enough to keep out all water when installed outside. It's also good practice to put your wires into the box so that the water will not accumulate inside the wire nut.

Alright...off my soapbox now. ;)
 
Re: Wet Location EMT Fittings

Originally posted by paul:
[Now find me a 2" Steel Raintight EMT fitting, since all I carry are steel comp fitting because of the main customer I deal with wants steel. :D
Click to expand...
How much of a finders fee?? :D

Do you wantr me to install it for you too?!?!? :p
 
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