I'm finishing a basement and am running cable to 2 of the rooms in the basement. I would like to run the cable into a double gang box with the cable outlet on one side and an electrical receptacle on the other. I know that the only way you are supposed to run low voltage to the same box as inline electricity is with a partition in the box for safety. Will this also prevent interference or might that still be an issue? I can put them in separate boxes but was hoping use 1 double gang box as opposed to 2 singles just for aesthetics.
There are boxes that you can use that has the partition in them to keep the interference down. The trick, possibly for you is to make sure the lines where they run parallel with each other is keeping them separated at a MINIMUM of 6". The low voltage guys I have worked with preferred 12" and more, some wanting 2' separation. If the walls are still open it should not give you no trouble then. When you do pass by a line voltage wire, use an extra foot or two and run the low voltage across the line voltage at a 90 degree angle, this will minimize the "crosstalk" where the cables meet.