Is it legal....
#1
12-17-02, 02:37 PM
Join Date: Mar 2002
Location: USA
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Is it legal....
...to pull phone wire and a 120V cable through the same hole in a wall header in the attic?
#2
12-17-02, 02:47 PM
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It might be legal, but it's a bad idea. It should be pretty simple to drill another hole, at least 6" away.
#3
12-17-02, 04:14 PM
Drill the extra hole. In addition to the current that flows THROUGH the 120 volt cable, an electromagnetic field surrounds the cable.
Then, like an antennae, your phone cable will "pick up" this magnetic field and could introduce noise/static in your phone line.
If possible, always run low voltage wires (phone, Cat 5 networking cable, speaker wire) a distance from line voltage wires. I like to use 18" as a guide. And if you must cross one with the other, try to do it at a 90 degree angle. At this angle, the field strength should be nil.
Then, like an antennae, your phone cable will "pick up" this magnetic field and could introduce noise/static in your phone line.
If possible, always run low voltage wires (phone, Cat 5 networking cable, speaker wire) a distance from line voltage wires. I like to use 18" as a guide. And if you must cross one with the other, try to do it at a 90 degree angle. At this angle, the field strength should be nil.
#4
12-17-02, 08:00 PM
Join Date: Mar 2002
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The reason I started it that way (and yes, I did finish it that way) was because I only wanted to fish down the wall once. It's an interior insulated wall, and getting it all in one shot was pretty high on the priority list while up there in the dirty attic.
I also noticed that the existing wiring was done this way, so I assumed it was legal.
I agree, however, that "legal" and "good idea" are not the same thing.
I also noticed that the existing wiring was done this way, so I assumed it was legal.
I agree, however, that "legal" and "good idea" are not the same thing.
