How To Make your Own Extension Cord

An extension cord is also known as an extension lead or a power extender. It is basically an extension of a plug with an extensive length of cable that allow for the plug to be brought to a place where there is no plug to use as power source for an electrical appliance.

To make your own extension cord, you can follow these steps:

Be sure that you are capable of working with wires. You have to be knowledgeable enough to work with electrical wires before you start working to make your own extension cord.

Know the length of extension cord that you need. You can do this by measuring the distance from the main power plug to the place where you need a power source. You can add a few feet to the exact measurement just in case you are going to need for a slack. But make sure that it is no longer than twenty four feet.

Prepare the things that you are going to need. You need to get some stuff from the hardware store, these are: 10 / 3 SJ-cord that is as long as the measurement of your cord, a voltage tester, a male and a female cord plug cap, some screw and screwdrivers and a wire clipper . You are also going to need some wire tapes and a knife.

  • Split one end of the 10 / 3 SJ cord. After splitting, pull away the outer sheath and the individual wires inside the sheath will reveal. Expose one to two inches of the inside wires.
  • Remove the paper insulations. These paper insulations are wrapped around each of the interior wires. In doing this, do not nick any of the wires as possible. This may cause your extension to malfunction, or worse, to short-circuit.
  • Unscrew the female plug cap. Dissect the female plug cap to expose the wire terminals. Unscrew each of the terminals.
  • Strip around the exposed wires. Use the wire strippers to strip around the exposed wires of the 10 / 3 SJ cord.
  • Attach the green wire to its matching green terminal. Before doing this, make sure that the copper wires are twisted so that the wire strands are united with the same kind. Slip the green wire into the green terminal and then tightly crew it in place.
  • Attach the white wire into its matching silver terminal. Do as what you did to the green wire, making sure that you twist the wires first to make sure they are united with the same kind. Slip and screw the wire in its place tightly.
  • Attach the black wire into its matching copper terminal. Repeat what you did to the white and green wires.
  • Repeat steps one to eight to attach the other end of the 10 / 3 SJ cord to the male cap. Make sure that your work is neatly done to prevent any electrical problems.

To finish your work, you need to make sure that the male and female plugs are screwed back in place with the ends of the 10 / 3 SJ cord attached to them. After doing this, plug the male plug into a power source and then plug a voltage tester into the female plug. You should know that you did a good job when the tester reads 120 volts.


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