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How to Extend Electrical Wire Using a Terminal Block

Published in Electrical Wiring Connections 2 mins read

One way to extend electrical wire is by using a terminal block connector.

Extending electrical wire, especially when dealing with a short length, can be done neatly and securely using a terminal block. This method involves connecting the existing wire and the new piece of wire together within a single connector, ensuring a safe and reliable splice.

A terminal block is a modular screw-type connector that allows you to join two or more wires together without needing to twist or solder them directly. They typically have screw terminals on each side to secure the wire ends.

Steps for Extending Wire with a Terminal Block

Based on the process shown in the reference, here's how you can extend a wire using a terminal block:

  1. Prepare your existing wire and the new piece of cable you will use for the extension by stripping a small amount of insulation from the ends that will go into the terminal block.
  2. Take your existing wire and "pop it in that side" of the terminal block, inserting the stripped end into one of the connection points.
  3. Tighten down the screw corresponding to that connection point securely onto the wire to hold it in place.
  4. Next, take "your extended piece of cable" and "pop [it] into the terminal block" on the opposing side or connection point meant for the corresponding wire from the original cable.
  5. Tighten it down the screw on this side firmly to secure the extended wire.

Once both the original wire and the extended cable are properly inserted and their screws tightened down in the terminal block, "there you go you've extended out your cable." This creates a solid, insulated connection point for your wire extension.

Using a terminal block provides a clean and organized way to manage wire connections, making it easier to troubleshoot or modify connections in the future if needed.

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