Speaker wire and sub cable in same conduit? - AVS Forum
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post #1 of 10 Old 01-17-2012, 09:18 AM - Thread Starter
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Is it ok to run sub cable (RG6) in the same conduit as regular speaker wire?

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post #2 of 10 Old 01-17-2012, 11:21 AM
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Originally Posted by Spaceman View Post

Is it ok to run sub cable (RG6) in the same conduit as regular speaker wire?

It's ok to run those together. Do not run electrical in the same conduit.

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post #3 of 10 Old 01-18-2012, 06:46 AM
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Any low voltage can be run in the same conduit – speaker, RF coax, phone, cat5, HDMI, etc. You just can’t run low and high (electrical) voltage in the same conduit.

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post #4 of 10 Old 01-19-2012, 02:17 AM
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Local ordinances, electrical and fire codes vary widely. Better to be safe and check with the authorities first.

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post #5 of 10 Old 01-19-2012, 01:36 PM
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A related question - why don't AC currents from 'LV' phone affect adjacent speaker wires? The phone AC current jumps to 90 VAC, while ringing.

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post #6 of 10 Old 01-19-2012, 02:27 PM
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Quote:


The phone AC current jumps to 90 VAC

Current is measured in Amperes, Potential difference in Volts.

Quote:


why don't AC currents from 'LV' phone affect adjacent speaker wires?

Magnetic flux is directly proportional to current.
The current flowing when the phone rings is small, very little magnetic flux.
Speakers are low impedance devices, inducing enough curreent into a low impedance circuit to be audible is very difficult.
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post #7 of 10 Old 01-19-2012, 06:20 PM
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Ah, yes. From Sandman's site, I see it's 35 mA. Thanks.

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post #8 of 10 Old 01-21-2012, 01:04 PM
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Quote:
Originally Posted by Neurorad View Post

A related question - why don't AC currents from 'LV' phone affect adjacent speaker wires? The phone AC current jumps to 90 VAC, while ringing.

Both phone cord and speaker wire are packaged so that each pair is parallel and very close together. This rejects common mode noise, and keeps EM emissions to practically zero. Unless that phone cable is driving a high REN load, the amount of power is miniscule. A cordless phone base of the type that is common with whole house cordless products has a REN that's 1/10th that of an old Western Electric phone. Besides, how often does the phone ring?

If the phone ringing made a noise that I could hear through my speakers, I'd call that a feature!

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post #9 of 10 Old 02-08-2012, 09:11 AM
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how far apart should I space the conduit to the electrical wire and the conduit to holding my speaker wires? would a foot be plenty enough? or would that even matter?
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post #10 of 10 Old 02-15-2012, 02:55 PM
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Minimum is 4".... A foot apart would work fine.

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