How To Extend Electrical Wire Junction Box

Advice on wiring electrical junction box with easy to follow junction box wiring diagrams including information on 20 and 30 amp junction boxes.

How to extend electrical wire junction box. The method is called a western union splice where you. A quick demonstration on how to join up the electrical wire when cutting it and adding an extension. A junction box is usually square and made of metal. When the cables and junction box are installed and in place make your splices ground to ground white to white and black to black using approved wire connectors.

You will need to reroute these cables to a different junction box somewhere the wiring is able reach with the needed spare length inside the box. I want to extend some wires to relocate some switches. Bring your new cable into the back of the range hood and enter the range hood using the correct cable connector. Wire splice connections must be housed inside a covered electrical box known as a junction box.

Use a wire nut size appropriate for the number and gauge of the wires you re using. A junction box is used to add a spur or to extend circuits and direct power to lights and additional sockets. Wire that short can t be spliced or extended. Selecting a source of power with the exception of switch boxes that do not have a neutral wire and switch controlled fixtures at the end of a circuit to extend a circuit you can simply tap into that circuit at any.

The easiest way in most cases is by simply extending the electrical circuit where wall ceiling and floor coverings already exist. From there you can run a 2 w ground cable to this location e g. Normally one might do this by splicing new wires in and covering the junction box with a cover plate. Cover your junction box with the appropriate blank cover plate.

The wire must be able to come out beyond the surface of the box at least 3.