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How to Splice Damaged Wiring

There are a few reasons a homeowner might find themselves having to splice wires together, and one of the most common reasons is that a wire has become damaged. Calling an electrician or replacing the wire in question entirely is an option, but is not necessarily required. Instead, splicing allows the homeowner to make repairs on his or her own. Therefore you will save money while still ending up with positive results. This article will outline how to safely and efficiently mend a broken wire in 10 steps. At the very least, a homeowner will need a wire cutter and stripper and electrical tape. You can also opt to use heat shrink tubing and a heat gun, as well as a soldering iron to ensure that the repairs are made to the best of your abilities.

  1. First, make sure all power running to the circuit you are working on is turned off. If there are other people in your house while you’re working, attach a note to the circuit breaker warning them not to turn anything back on.
  2. Locate the area of wiring you’re going to be working on. The insulation around the wire will probably be kinked, cut or burnt, depending on the type of damage it has endured.
  3. Using wire cutters, remove the damaged section by squeezing the handles and clipping through the wire on either side of the trouble area. Try to cut as close to the area as possible so that you don’t waste any length of wire that isn’t damaged.
  4. Now that you have two wire ends, use wire strippers to remove an inch of insulation from both. Make sure you use the right wire stripping opening when doing this. You must know the size of the wire you’re working with, and place it within the opening of the same size. This ensures that just the insulation is removed, and you don’t inadvertently cut through the wire itself. Slide the wire stripper off of the wire while gripping tightly to remove the insulation.
  5. Observe whether you have revealed either a single wire, or a group of small wires. If your wire is actually several strands, simply bend them all in the same direction to create a cylindrical shape.
  6. If you are planning to use heat shrink tubing, it would be best to apply it now. Cut the tubing to a measurement that is about twice as long as the spliced area and slide the tubing into the insulation until it is only barely visible.
  7. Twist the wires together tightly. Remember that a loose connection is a bad connection, and can become faulty over time.
  8. If you are using a soldering iron, begin prepping by heating the iron and applying your solder to inspect whether it melts.
  9. Once your soldering iron is ready, press the tip of the iron and solder to the twisted wires and coat them evenly. Be sure that you don’t go overboard, as the situation will get messy and the wires will become misshapen.
  10. If you chose not to use heat shrink tubing, now is the time to apply electrical tape tightly and evenly over the exposed wires. This will create a splice that will not conduct electricity. If you applied heat shrink tubing, set the tubing by sliding it over the exposed wires and using a heat gun to make it form the right shape, then apply electrical tape just to be safe.

After you’ve completed these steps, make sure that there is no amount of wiring still exposed. Tuck everything back into place and clean up your area. Then test the spliced wire by turning back on your power and testing the devices that run on the circuit you’ve been working on. If all goes well, there’s a good chance you’ve successfully and safely spliced the wires. If there is still a problem within your circuit, or you’re not comfortable with the job you’ve done, it would be best to contact an electrician for further advice. Although home wire splicing can be a fairly easy project, it’s important to know how the wire became damaged in the first place. If you’re unsure how the damage occurred or you continue to have problems with the circuit, call a certified company of electricians to inspect your home.

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