Originally Posted by joed
Under the code I think you can. However it is never recommended to run power wires and cable TV wires in parallel unless more than a foot apart. Electrical can cause interference on the cable wire. They can't be run in the same conduit unless the cable TV wire has an insulation rating equal to the power cable(600volts).
as long as the insulation is rated higher than the highest voltage present, it's ok. It doesn't have to match the insulation of the power cable. Since the first standard level (that I am aware of) is 300 volt rated, that would be fine.