Structure Of Bimetallic Terminals In Mechanical Connections Between Conductors And Equipment

bimetallic lugs is composed of two different metals, typically aluminum and copper, bonded together through machining, friction welding, or shear bolting. The aluminum portion mates with the aluminum conductor, while the copper portion contacts the equipment busbar or bi metal cable lug. This structural design connects the copper and aluminum conductors, achieving a seamless mechanical connection in terms of geometry and material properties.

In the internal design of bi metal lugs connectors, the connecting holes, stranding grooves, and crimping areas are matched to the conductor cross-sectional area and the specifications of the installation tools, thus forming a precise mechanical engagement interface between bi metallic cable lugs and the conductor. After the conductor is inserted, a preset crimping or tightening torque causes reasonable plastic deformation and contact area distribution between the conductor and the internal contact surface of bimetal cable lug. This structure maintains a stable mechanical connection over a long period.