Bi-Metal Lugs are the vital components of electrical systems where copper and aluminum conductors are combined. These lugs are designed to develop a durable and reliable connection between unalike metals so as to avoid galvanic corrosion, which may occur if copper and aluminum come into direct contact with each other. Bi-Metal Lugs assure good conductivity and maintain the electrical integrity of the joint.
The lug is usually made by friction welding of high-purity aluminum on one side and electrolytic-grade copper on the other. This fusion allows a stable connection with both aluminum and copper cable, minimizing electrical resistance and mitigating overheating or voltage drops in high-current applications. These lugs are then tin-plated for protection against oxidation and environmental effects.
Bi-Metal Lugs find extensive use in power distribution, control panels, transformers, and switch-gears where mixed-metal conductors are common. They are easy to install with standard crimping tools and thus lend themselves well to industrial and domestic applications.
In short, Bi-Metal Lugs form an integral part of safety, performance, and sustenance of electrical systems by providing dependable connection between copper and aluminum conductors.