Water Supply and Branch Wiring in Same Conduit

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ransonjd

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Is there a prohibition against running water supply pipes and branch wiring in the same conduit? The conduit in question is the underslab connection to a kitchen island. The water supply would be hot and cold PEX, and the wiring would likely be UF cable. It's actually governed by IRC, but an NEC reference would be helpful.

Thanks,

John
 
infinity said:
Technically what you have is a sleeve which wouldn't be a problem.
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I dont see where the OP mentioned a sleeve; w/o more information, we can only speculate.

Generally, even if permissible, I dont use a wall/floor sleeve for electrical that has other piping systems (gas, water, drain, etc.) in it, and certainly not a conduit or raceway, which would not be allowed. I realize fire ratings are likely n/a here. It may also be that coordinating with the plumbers, gas guys, etc to use a common chase is so far removed from my experience as to be viable, so my response may very well be based on practicality than Code.
 
JFletcher said:
I dont see where the OP mentioned a sleeve; w/o more information, we can only speculate.

Generally, even if permissible, I dont use a wall/floor sleeve for electrical that has other piping systems (gas, water, drain, etc.) in it, and certainly not a conduit or raceway, which would not be allowed. I realize fire ratings are likely n/a here. It may also be that coordinating with the plumbers, gas guys, etc to use a common chase is so far removed from my experience as to be viable, so my response may very well be based on practicality than Code.
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it seems fairly obvious from the context that it is a sleeve, and why? As long as the bend radius isn't violated, it would be no different than running the side by side in a kitchen.
 
The water supply would be hot and cold PEX, and the wiring would likely be UF cable. It's actually governed by IRC, but an NEC reference would be helpful.
Sounds like he is describing a sleeve to be me, which is typically not an issue.

 
Strathead said:
it seems fairly obvious from the context that it is a sleeve, and why? As long as the bend radius isn't violated, it would be no different than running the side by side in a kitchen.
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My thought as well. As soon as the OP mentioned UF cable then it's likely a sleeve. If he wanted to pull THWN in with the water then that would be different.
 
infinity said:
My thought as well. As soon as the OP mentioned UF cable then it's likely a sleeve. If he wanted to pull THWN in with the water then that would be different.
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And to truly be a conduit it has to terminate to electrical equipment (panelboard, j-box, etc.) on at least one end.
 
An underslab sleeve for a kitchen island would likely stub up to the nearest accessible wall, yes? 5' or more? In that sense, it's not really a sleeve as we normally describe such here, tho NEC wise, it makes no difference.

My objection to doing so is that pulling your wire in before the PEX leaves it to the mercy of the plumbers, and after, you may not have clearance to get in your UF. If it were going thru a top plate or horizontally thru studs, you'd drill your own holes.
 
JFletcher said:
An underslab sleeve for a kitchen island would likely stub up to the nearest accessible wall, yes? 5' or more? In that sense, it's not really a sleeve as we normally describe such here, tho NEC wise, it makes no difference.

My objection to doing so is that pulling your wire in before the PEX leaves it to the mercy of the plumbers, and after, you may not have clearance to get in your UF. If it were going thru a top plate or horizontally thru studs, you'd drill your own holes.
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now we are going from is it code" to personal preference.
 
It is a sleeve. You can have water, gas, electrical, sewer, drain... in the sleeve. Unless the local AHJ do not allow it.

Just make sure your UF cable does not get damaged when installing it. My preference, I would install my cable after other pipes are installed.
 
edward said:
It is a sleeve. You can have water, gas, electrical, sewer, drain... in the sleeve. Unless the local AHJ do not allow it.

Just make sure your UF cable does not get damaged when installing it. My preference, I would install my cable after other pipes are installed.
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I would add a few lengths of pull string and tie them to screws on both ends. Give you and the plumbers something to pull stuff in and allow you to pull your wire after they get the pipes in.

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I would put my own chase in separate from the plumbers to begin with and if I didn't get there in time to do so would have no issue using theirs.

JAP>
 
I would however have an issue if I was there first and they used mine. :)

That's why if it is actually a chase or sleeve it needs to be big enough that you don't have to argue about who gets to use how much of it.

JAP>
 
ransonjd said:
Is there a prohibition against running water supply pipes and branch wiring in the same conduit? The conduit in question is the underslab connection to a kitchen island. The water supply would be hot and cold PEX, and the wiring would likely be UF cable. It's actually governed by IRC, but an NEC reference would be helpful.

Thanks,

John
Click to expand...

what is the IRC code?
 
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