Bimetallic lugs are critical parts in electrical installations and are specially used to join aluminium conductors with copper bus bars or terminals. This is required because aluminium-to-copper direct connections would result in galvanic corrosion, which would gradually weaken the connection. The lugs are usually produced through friction welding, creating a strong and firm joint between the two metals, providing for effective conductivity and mechanical strength.

One of the most important benefits of bimetallic lugs is that they can minimize resistance at the point of connection, maximizing power transfer. In high-voltage systems, poor connections cause energy loss and overheating, which can be hazardous. Engineers and electricians can avoid such a situation using these lugs, enhancing the reliability of electrical systems overall. They are used extensively in power transmission, renewable energy, and heavy machinery industries, where connections involve mixed metals.

Their longevity in severe climates is a normal issue with bimetallic lugs. Moisture, salt spray exposure, and industry pollutants can effect their performance. Manufacturers overcome these issues by plating protective surfaces or utilizing resistance materials that thwart corrosion. In addition, quality installation and service help maintain safe and effective connections for extended durations.