phone and coaxial installed near romex or lights

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Buck Parrish

Buck Parrish

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Is their a code reference that does not allow phone or cable in the same drilled hole through wood framing.
Can you run cable and phone paralell to romex and how far a part if any should the cable be kept away from the romex or mc cable.
 
buckofdurham said:
Is their a code reference that does not allow phone or cable in the same drilled hole through wood framing.
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NO.
buckofdurham said:
Can you run cable and phone paralell to romex and how far a part if any should the cable be kept away from the romex or mc cable.
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Yes you can run it and there is no distance in the nec.
 
buckofdurham said:
Is their a code reference that does not allow phone or cable in the same drilled hole through wood framing.
Can you run cable and phone paralell to romex and how far a part if any should the cable be kept away from the romex or mc cable.
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No, and sometimes I run them in the same hole, most times I drill a seperate hole.
 
buckofdurham said:
If you have three romex wires in a stack-em.
Can you use the fouth space for a coaxial or phone?
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Sure you can, I use NM and LV in the same clip... its not going to hurt the cable...

Take a look at 800.52 (2) but make sure you read the exceptions. and 820.52 (2)
 
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If the high def plasma has any interference you are going to get the blame I always run coax seperate from line voltage diagonal cross only
 
stickboy1375 said:
Sure you can, I use NM and LV in the same clip... its not going to hurt the cable...

Take a look at 800.52 (2) but make sure you read the exceptions. and 820.52 (2)
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Are you looking in the 08 book?
Because I read something about 4" away from power and lighting wires
 
buckofdurham said:
Are you looking in the 08 book?
Because I read something about 4" away from power and lighting wires
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What code reference are referring too? If you're referencing 800.50(B) that doesn't apply to the installation in the OP.

There is no 800.52 in the 2008.
 
normbac said:
If the high def plasma has any interference you are going to get the blame I always run coax seperate from line voltage diagonal cross only
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Why would it have any interference? Just seems like one of those electrical myths to me. With that all said, You ever look at the back of a stereo cabinet?

It is simply impossible to keep the high voltage and low voltage seperate, look at the back of a cable box, tv, stereo receiver, dvd player, etc... the connections are right next to each other, never mind what happens inside of the box...:roll:
 
I have discovered that LV crossing or running with line voltage for short distances has little or no effect, its when you run them together touching or bundled for several feet such as with a Home run that you may run into problems, maybe induction. I know I also try never to run my heavy 240v HR's along side lighting circuits for long distances for the same reason. stops alot of the dimming when the HVAC kicks in.
 
stickboy1375 said:
Why would it have any interference? Just seems like one of those electrical myths to me.
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It's as much of a myth as a transformer working without any real connection between windings. :D


Interference is a real possibility when line volt and communication cables are paralleled for some distance.
 
scwirenut said:
I know I also try never to run my heavy 240v HR's along side lighting circuits for long distances for the same reason. stops alot of the dimming when the HVAC kicks in.
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I swear I'm not trying to be arguementative here , but could you explain why lights would dim under these circumstances ?
 
We never run phone or Internet in with power as the jackets are not rated the same..runing through holes in framing members is really no different then running through conduit..The holes limit the size of bundled cables and are the same as a group of cables in a conduit or gutter..you must separate the low voltage in either of the later two scenarios why not the first??In the long haul I believe there are more problems then interference..
 
cschmid said:
..runing through holes in framing members is really no different then running through conduit..The holes limit the size of bundled cables and are the same as a group of cables in a conduit or gutter..you must separate the low voltage in either of the later two scenarios why not the first??
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As far as the NEC the difference is this.

You may run a phone cable and a power cable in the same hole or raceway.

You can not run a phone cable in the same raceway as power conductors.

From an interference perspective I don't see much difference.
 
cschmid said:
you are correct the semantics of the words allow it but the physics of the install are the same..would that be a better statement..
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Not sure what your saying, maybe we are saying the same thing. :)

The code allows mixing with cables, not with conductors. The code does not care about the interference, the code only cares we don't energize a data cable with line voltage.

Personally I try to keep them apart.
 
buckofdurham said:
Take a look at 800.50 (b) In the 08 NEC book
It says separate them 4"
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800.50(B) only applies to the conductors described in 800.50(A) 'running from the last outdoor support to the primary protector'

Once past the protector 800.50(B) is a moot point.
 
iwire said:
800.50(B) only applies to the conductors described in 800.50(A) 'running from the last outdoor support to the primary protector'

Once past the protector 800.50(B) is a moot point.
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Thank You................
 
buckofdurham said:
What happened to 820.52


Take a look at 800.50 (b) In the 08 NEC book
It says seperate them 4"
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You may want to go back and read 800.52 over. It is for "Primary circuits" on the building and not in cable etc.
It also is for cables covered under 800.90 The portion of the cable that is under 800.50 (b) is mostly outside of the building.
 
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