Welding cables are used to connect an electrical power source to welding equipment. The cable consists of two or more insulated wires that are twisted together and covered with a jacket. The most common type of welding cable is made from copper or aluminum wire.
To join welding cables, you will need to use a butt connector. First, strip the insulation off of the ends of the wires using a wire stripper. Next, twist the bare wires together clockwise until they are tight. Then, insert the wires into the butt connector and crimp it closed with a pair of pliers.