In another thread I asked about replacing worn (old cloth-covered rubber) pigtails that feed a receptacle, and I'm going to replace those with new #14 wire. But the wires that enter and exit the box that are wire nutted to those pigtails are the same kind of old wire, and I'm thinking that if they are in the same condition as the pigtails that I should do what I can to make them safer within the box.
If they are worn, assuming it would not be a good idea to cut the wires back towards where they enter/exit the box and splice on new wire, I'm thinking of applying heat shrink tubing to the wires (using a micro torch in hot air blower mode because the box is too small to fit a heat gun nozzle in).
It this a good idea, or should I just leave those wires alone and manipulate them as little as possible (other than connecting them to the new pigtail wire)? Thanks.
If they are worn, assuming it would not be a good idea to cut the wires back towards where they enter/exit the box and splice on new wire, I'm thinking of applying heat shrink tubing to the wires (using a micro torch in hot air blower mode because the box is too small to fit a heat gun nozzle in).
It this a good idea, or should I just leave those wires alone and manipulate them as little as possible (other than connecting them to the new pigtail wire)? Thanks.