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Old 06-19-2017, 12:58 PM   #1
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Default 12" of Unsupported EMT Under Eave

I have 12" of unsupported EMT under the eave of a roof. The run along one side of the house was along the wall of the house. I then transitioned to the inside surface of the fascia board so there are 12" of unsupported conduit between the house wall and the fascia. I can't find anything in 300.18 or 358.30 that expressly prohibits this.
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Old 06-19-2017, 01:00 PM   #2
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Do you mean 12' (foot)?

If not, I can't figure out the question. EMT needs support every 10', so 12" is perfectly fine.
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Old 06-19-2017, 01:05 PM   #3
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Is it supported within 3' of the end? Is it supported at least once every 10'? Just support it right next to the unsupported part.
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Old 06-19-2017, 02:42 PM   #4
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There used to be 383.30(C) (I think) that allowed less than 36" to be unsupported. A nipple.

That was removed so technically you need some support, but if it's up and out of the way I wouldn't worry about it.
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Old 06-19-2017, 03:24 PM   #5
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There used to be 383.30(C) (I think) that allowed less than 36" to be unsupported. A nipple.

That was removed so technically you need some support, but if it's up and out of the way I wouldn't worry about it.
In what situation would that be used?
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Old 06-19-2017, 05:37 PM   #6
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In what situation would that be used?
I think in most cases a nipple between two panels or boxes.

Not really the OP situation here I guess.

He said it was a short piece under a roof eave where it's not going to get kicked around or anything. Nothing to worry about I'd say.
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Old 06-19-2017, 05:42 PM   #7
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Gotcha, I see what you are saying.

I'm still confused about the OP.
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Old 06-19-2017, 06:14 PM   #8
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Wow you guys can go 10' between straps for EMT? Up here it's 1.5m/5' (1/2" & 3/4"), 2m/6' 6" (1" & 1 1/4") or 3m/10' (1 1/2" and up). Same for rigid.
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Old 06-19-2017, 06:50 PM   #9
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If I get this it's strapped right to the boards except for where the jog in the pipe crosses the soffit.
@swimmer, are you just worried about the 12" where it crosses the soffit and isn't touching a board? That's no problem at all.
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Old 06-20-2017, 10:25 AM   #10
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If I get this it's strapped right to the boards except for where the jog in the pipe crosses the soffit.
@swimmer, are you just worried about the 12" where it crosses the soffit and isn't touching a board? That's no problem at all.
''

@splatz Yes that's all I was worried about. Thanks
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Old 06-20-2017, 10:30 AM   #11
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I should have taken a picture. When I said "unsupported" I meant it isn't against any wood or stucco for those 12 inches. It just goes through the air. Anyway, I don't think I have to worry about it.
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Old 06-20-2017, 10:43 AM   #12
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I should have taken a picture. When I said "unsupported" I meant it isn't against any wood or stucco for those 12 inches. It just goes through the air. Anyway, I don't think I have to worry about it.
A very large percentage of pipe runs aren't against anything, such as all the pipe run overhead being supported every 8-10 by hangers or trapezes.
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