What are bi-metal lugs and why are they used?
BI METAL LUGS are special connectors used in electrical systems that connect two different metals' conductors, usually from aluminum to copper busbar or terminals. The production process of these connectors entails joining two different metals together, an aluminum barrel being friction-welded to a copper palm, which is the most popular method. The distinctive construction of this connector allows avoiding the coming together of aluminum and copper which through time would lead to galvanic corrosion, increased resistance, and consequently, overheating.

The main reason why BI METAL LUGS are utilized is to guarantee an electrical connection that is safe, trustworthy, and durable in installations with mixed metals. The differences in physical properties and electrochemical behavior of aluminum and copper can be quite a lot. Direct connections can result in loosening, oxidation, and power losses due to these differences. Bi-metal lugs offer a solution by acting as a buffer and thus are able to maintain conductivity while the joint is subjected to only minimal mechanical and chemical stresses.

These lugs come in large numbers in power distribution panels, transformers, switch gear, renewable energy systems, and industrial electrical networks where aluminum is mostly used for conductors but copper is required for terminations. Proper installation and crimping of the lugs will give even better performance and longer life.

One of the manufacturers, PIONEER POWER INTERNATIONAL ensures the production of top-notch BI METAL LUGS that are compliant with international standards, thus providing very good conductivity, mechanical strength, and resistance to corrosion. Through the use of bi-metal lugs, engineers can not only enhance system safety but also decrease maintenance problems and ensure that power transmission is done efficiently in electrical environments that are demanding.