Loose Bimetallic Terminals Should Be Addressed Promptly.

If bimetallic lugs is found to be loose during on-site inspection, the relevant power supply should be disconnected first to avoid safety risks during the handling process. During inspection, use hand tools to check the tightness of bolts bi metal cable lug one by one, observing for any obvious displacement or oxidation. If bolt bi metal lugs connectors has shifted, the tightening force needs to be readjusted according to the torque standards provided by the manufacturer.

To determine the degree of looseness of bolt bi metallic cable lugs, attention should also be paid to the conductor insertion depth and the fit of the metal contact surfaces. Incomplete insertion or an oxide layer on the contact surface will reduce contact stability. The metal surface should be cleaned and repositioned after the power is off.