Easy Guide to Connecting Electrical Wires with Wire Connectors

Connecting electrical wires safely and correctly can prevent dangerous shocks and potential fires. Fortunately, it’s easy to splice two current-carrying electrical wires together with a twist-on wire connector, even for non-professionals. This article will explain how to properly use this simple, yet versatile tool.

It is important to first identify the type of wire connector being used; some crimp-on and others slide on or twist-on. The most common type is the twist-on connector. Before beginning any electrical wiring projects, always remember to turn off the power to the area. This will reduce the risk of dangerous electrical shocks. Moreover, selecting the appropriately-sized wire connector is essential to prevent both mechanical and electrical failure and electrical fires. When the connector resists the current, the wires will heat up and expand. The connector must be tight and secure enough to remain in place as the wires cool and contract. Therefore, it is important to make sure the wire connector is rated for the size of the wire and the number of conductors present.

Using a wire stripper, remove 3/8 inch of the coating around the ends of the two wires needing to be connected. Without twisting the wires, align them parallel to each other and place the cap portion of the wire connector over the exposed conductors. Inspect the connector to ensure the entire conductor is covered and no wire is protruding from the bottom. If any wire is exposed, remove the cap and clip the end with a wire cutter before retrying.

When you are certain that the connector has been applied successfully, twist the cap clockwise until it feels very tight. This will ensure a strong connection. Once the connector has been tightened, pull on each wire to test the strength of the splice. It should not slip or break away. If the connector is not tight enough, double check that the wires are properly aligned and repeat the process.

The twist-on wire connector is a simple and effective way to splice two electrical wires together. It is easy enough for a non-professional to use, and taking the time to inspect the connector and wire thoroughly before applying power can help prevent electrical shock, mechanical failure, and even fires. When working on any electrical wiring project, make sure to use the right tools and check frequently that the connections are tight and secure.