A: Cable and phone wires dont carry current, so its safe to remove them. However, its critical not to cut into a power line, as you know. Find it by doing a Web search for the words “Pepco equipment responsibility.” The wire to your house is Pepcos responsibility; past the weather head, its yours.

Can I cut old phone jack wires?

Just leave them alone if hooked up. It will not hurt anything. Now of course if it is one continuous run, where they stripped some of the insulation to place in the screw, cutting it will kill all downstream phone jacks. If you want to cut the lines, just cut them and push in the wall.