The tin-plating of the copper palm in bi metallic lugs greatly improves their performance, particularly in harsh electrical environments. Here's how tin-plating improves the performance of bi metallic lugs, using the key words: - Corrosion Resistance: Tin-plating creates a protective coating on the copper palm, shielding the copper from the direct contact of air and moisture. This ... https://www.pioneerpowers.com/bimetallic-lugs-and-connectors.php