Electrical Tape On Live Wire. Any reason to open up dimmers elsewhere in the house to remove tape (assuming they were all done it's actually recommended you wrap electrical tape around the nuts. Live wires transmit electrical current which, when exposed, can even cause electric shocks or fires. If the wires overall are sufficiently long, the excess exposed copper can be cut off.
Pvc or electrical tape is an ideal solution for working with live wires.
You also use tape on capped live electric wires as an extra precaution. It has a habit of the adhesive degrading and failing. In this case, the solder is holding the wires, but i really wouldn't trust wire nuts involves twisting the wires together, meaning the wires hold themselves in position, the nut insulates the top and helps (somewhat) stop movement. But if for some reason you must cut a live electrical wire, there are ways to do it while minimizing the potential for harm. Actually, if you have a hardware store nearby, you can probably find a white electrical/insulating tape and then it will not be so noticeable. You also use tape on capped live electric wires as an extra precaution. That meant exposing live wires running inside the wall, which meant i had to cut power to that circuit before i could work safely. What would you do if there was no vinyl electrical tape?
