I'm installing a computer and have to drop both power and Ethernet from the ceiling. Will i get interference running the 2 wires close together?
Yes you can put them together and no you will not receive interference
This is not a good idea, it will cause interference and should be placed at lease 4 1/2 feet apart from A/C power EIA/TIA wiring standards.
The National Electric Code does not permit power and low voltage conductors such as network cabling to be run in the same conduit. That being said there are dual channel power and data raceways that can be legally used for your application. As far as interference goes, technically you should run network cabling at 90 degree angles to power cabling. However many installations get away with short distance parallel runs to low amperage power cables without any adverse affects. Good Luck...
