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Old 02-10-2009, 06:40 PM   #1
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Running Wire


Hello,
One quick question. Is it ok to run NM cable through the same space the water pipes come up from the basement? I have two locations in my house that run from the basement up to the second and third floors. One section, where the sewer pipes are, runs from basement to second floor. The other section has a vent pipe that runs from basement to the roof. I am analyzing my house to find paths for running cable to the entire house and would rather use these new paths but just in case I run into trouble can I use those access ways? How many cables can I run up this space? Thanks in advance for your time.

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Old 02-10-2009, 07:06 PM   #2
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Sure you can. There's no proximity issues that would require you to separate plumbing pipes and NM wire, at least in the code. Most people would just consider it a workmanship issue.

As for how many wires...
You want to avoid "bundling" the wires together. That is a code issue. Bundling a few wires through a small hole can be an issue.

Secure the wires wherever possible, but if you're fishing wires through a finished chase with no access then there's no requirement for you to secure them.

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Old 02-10-2009, 08:27 PM   #3
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Quote:
Originally Posted by thekctermite View Post
As for how many wires...
You want to avoid "bundling" the wires together. That is a code issue. Bundling a few wires through a small hole can be an issue.
Hello;
In terms of running romex through the same hole in a joist/ stud, do derating factors apply to romex running through a hole the same way it applies to thhn in conduit?

Thanks
Jamie
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Old 02-10-2009, 09:03 PM   #4
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Running Wire


Thanks for your time. The chase is pretty big so there would not be any bundling issues. There are no small holes it is more or less an 8 inch square all the way up from the basement. I was more concerned with the proximity to the pipes. Again, thanks for your time and input.
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Old 02-10-2009, 11:17 PM   #5
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Quote:
Originally Posted by jamiedolan View Post
Hello;
In terms of running romex through the same hole in a joist/ stud, do derating factors apply to romex running through a hole the same way it applies to thhn in conduit?

Thanks
Jamie
Not that I'm aware of. Biiiig difference between confining it in a 1.5" stud hole and a long run of conduit.
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