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Old 01-30-2013, 06:44 PM   #1
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Odd Wire type


There's a GFI receptacle on the exterior of my house. The wires running to it are not like anything I've ever seen. I believe the wiring runs into my attic, except when its in the attic it appear to be old rubberized NM-B cable (both the sheath and the insulators). So without further ado... Here's a photo. What type of wire is this?


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Old 01-30-2013, 06:46 PM   #2
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Odd Wire type


Add your location. I have not seen anything like that in Canada.

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Old 01-30-2013, 06:48 PM   #3
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Odd Wire type


I'm on the East Coast of the US, and have not seen anything like it either. The house was built in 1947. I've seen wiring in the house that seems to range from armored with rubberized insulation, to aluminum wiring, to modern stuff. So figure it could be anything made in the last 70 years.

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Old 01-30-2013, 06:57 PM   #4
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Odd Wire type


Looks like it could be older UF cable.
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Old 01-30-2013, 06:58 PM   #5
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Odd Wire type


That is still available at the big box stores on rolls. I believe it is for direct burial. I have never used it.
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Old 01-30-2013, 07:24 PM   #6
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Odd Wire type


THAT is submersible well pump cable. Not listed for premises wiring.
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Old 01-30-2013, 07:27 PM   #7
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Odd Wire type


Jim, so you agree with sgip2000 that its older UF? Any issues with it? What bothers me is that it appears to be connected to some old rubberized NM cable somewhere in the exterior wall (sandwiched between plaster on the inside and two layers of siding on the outside) -- with insulation in between. And to make matters worse, there are windows above it, so it has to go horizontal (through studs)... So if its stapled in, I'm done....
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Old 01-30-2013, 08:04 PM   #8
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Odd Wire type


I'm with KB - I think it's submersible pump cable. The colors are different than usual, but they're also not normal for any other use. The construction looks exactly like pump cable.
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Old 01-30-2013, 09:35 PM   #9
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Odd Wire type


That is not a waterproof box either.

Deres water gittin in dare Verne! lookidat RUST!
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Old 01-30-2013, 09:53 PM   #10
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Odd Wire type


Quote:
Originally Posted by jagans View Post
That is not a waterproof box either.

Deres water gittin in dare Verne! lookidat RUST!
Why do you think a box mounted in a wall needs to be waterproof?
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Old 01-30-2013, 10:12 PM   #11
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Odd Wire type


Quote:
Originally Posted by kbsparky
THAT is submersible well pump cable.
^ Yep
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Old 01-31-2013, 08:57 AM   #12
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Odd Wire type


I don't see any of the cable marked with white. It appears to be red, black and green. It can only be used 240 volt applications.
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Old 01-31-2013, 09:07 AM   #13
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Odd Wire type


Quote:
Originally Posted by Jim Port

Why do you think a box mounted in a wall needs to be waterproof?
Exterior wall, should have exterior in-use type cover
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Old 01-31-2013, 12:38 PM   #14
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Odd Wire type


Quote:
Originally Posted by mterry View Post
Exterior wall, should have exterior in-use type cover
The comment was about the box. The reply was about the box. Nobody mentioned the cover. The cover is not in the photo. Jim Port's comment/question was spot on.

Why is everybody so confused??

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Old 01-31-2013, 01:28 PM   #15
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Odd Wire type


joed, I don't see any cable marked with white either. I thought that was a bit odd. I can't see why a cable intended for 240V would be an issue at 120V though (in fact, I didn't know there were cables intended for 240V vs 120V). Regular NM-B cable is rated to 600V. The stranded nature is kind of odd though.

There was a cover over it that I removed that consists of a rubber/foam gasket and a metal cover with a spring loaded hinged door (with rubber/foam gasket on the door). I removed the cover so that I could inspect everything, its going back on.

If I can figure out how to replace it, I'd love to, but like I said, its not exactly in an easy to get at place.

Anyway, thanks for the feedback.

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