Power and Telecom conduit run side by side

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anbm

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TX
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Designer
Are there any issues, interference if power and telecom conduits (has low voltage data wires) run side by side, probably 3"-6" apart?
 
In metallic conduits, none. In non-metallic conduits, little.

Modern data lines are almost immune to 60 Hz interference.
 
National Electric Safety Code [C2-2007] Rule 320 Location B. Separation from other underground installations
 

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In metallic conduits, none. In non-metallic conduits, little.

Modern data lines are almost immune to 60 Hz interference.
For 60Hz and modern, in the sense of Ethernet, they should be close completely immune. A voltage induced on D+ will also be induced on D-, and the difference will remain constant. If there is going to be a problem it will be on non-differential lines, like RS-232, and not differential lines, like Ethernet, RS-485, RS-422, etc.

In the OP's case, the question should be if this is VoIP or regular telco.
 
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