Longtime lurker, first time poster. I am doing a partial basement renovation (bathroom and bedroom) and intend to run coaxial cable (RG-6) to the new bedroom. My problem is that the only path that I have available to run the cable (along a structural I-beam that runs down the center of the house) is also the location of 2 or 3 NM electrical cables that take advantage of the same pathway. At present, the Romex and the coax run in parallel for approximately 20 feet. For various reasons, I cannot relocate either without dramatically increasing the scope and cost of this project.
Everything I've read says to keep coax 6-12 inches away from electrical cable. Since that is not possible in my case, is there any kind of additional shielding I can apply to the coax, or is there special coax manufactured for situations such as these?