regular and low voltage wire in the same stud bay?

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  #1  
Old 06-03-06, 01:49 PM
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regular and low voltage wire in the same stud bay?

Hi All,

Getting ready to install a whole house speaker system. I'm also upgrading my electrical wiring. It just so happens that the easiest place to a) run the speaker wires into the attic and b) run the electrical into the crawlspace, happens to be in the same stud bay. The gas line runs from the attic to the crawlspace so the top and sole plates are completely open.

I think the NEC prohibits regular and low voltage running in the same raceway or box, but what about the stud bay? Is that considered a raceway? I'm not too worried about interference because the run is only 7 feet or so.

I could use the bay one over, no problem, but this would be easier and no drywall would need to be harmed..

thanks all !
 
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  #2  
Old 06-03-06, 03:59 PM
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You would be well served to maintain 24" seperation between the two. Use the next bay over for peace of mind knowing you won't hear any static caused by interference over your speakers.
 
  #3  
Old 06-03-06, 04:19 PM
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Most people recommend a separation of at least one foot. You can use the same stud bay if you wish, but I would try to maintain the one foot separation.
 
  #4  
Old 06-03-06, 06:37 PM
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so what I'm hearing is that it's ok per NEC, but not recommended due to possible interference.

Thanks guys. Might as well use the next bay over. pretty easy.
 
  #5  
Old 06-04-06, 02:33 AM
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The code says that 1/4 inch is separation between high and low voltage wiring. The code is not concerned with interference on the speaker wires, but only the likely hood that they become energized with the higher voltage due to a fault.
 
  #6  
Old 06-04-06, 12:10 PM
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jwhite,
Could you list a code reference for the 1/4"?
I'm familiar with the reference of 2" in 800.52A(2) but exception#1 eliminates that because they're in cables.
 
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