There is a similar question where someone is
building a new house and is planning to hardwire network cables into each room.
Can somebody run CAT5/6 cables parallel to low voltage (5v, 9v, 12v, 15v) wires without introducing any general safety issues or losing much in connection quality?
Best Answer
What bothers electronic signals is oscillating magnetic fields. DC power cables create an unchanging magnetic field like a refrigerator magnet.
However, if you are hauling 5 volts DC across a house, that's probably a mistake unless you are using huge wire. Voltage drop will kill you...