Electrical Wire Insulation Repair

This works but it doesn t look professional.

Electrical wire insulation repair.

Use yellow flame tip of a suitable heat shrink propane torch start heating the metal channel area first for about half a minute. Peel off the outer jacket of 12 2 nonmetallic cable. Slide heat shrink tubing over the damaged insulation area if the wire is not part of an electrical extension cord or power cord. The quick and dirty fix to repair damaged wire insulation is to just wrap it in electrical tape.

Look at the electrical wire where the insulation is damaged. Pick up a short length of 12 2 nonmetallic cable and a package of heat shrinkable tubing. Of insulation from the black and white wires. This works but it looks bad and eventually that tape is going to fall off and then you re going to need to fix it again.

Use a wide crimping tool which will provide a good crimp of the spliced wire. Then strip off about 8 in. Since the wiring in a ceiling fixture is usually 14 gauge you can fix it with insulation stripped from a 12 gauge wire. Inline splice repair for wires that are cut short.

Electrical wire insulation for lamp and appliance cords is made from flexible polyvinyl chloride and electrical house wiring insulation consists of a thermoplastic high heat nylon material. Inline barrel crimp type splice connectors work well where the wires may be cut short. If the wire is nicked or cut repair the wire before repairing the insulation. Materials and labor for repairs.

The easiest and cheapest option is to just wrap some vinyl electrical tape around the damaged insulation to shore it up. As long as the copper conductors inside the wires are not damaged however the insulation is repairable. The insulation covers the wire and it can be damaged through everyday use.