Analysis Of The Causes Of Poor Contact In Bimetallic Terminals Due To Spring Mechanism Failure

In electrical connection systems, bi metallic cable lugs typically includes a spring structure to maintain the clamping force and stable contact between the conductor contacts. If the spring mechanism loses sufficient elasticity and sustained force due to improper material selection, thermomechanical fatigue, poor surface treatment, or dimensional deviations, the clamping force between the metal contacts inside bimetal cable lug may weaken.

For bimetal terminal lug, this "poor contact" caused by spring failure is an internal structural failure, which is usually not easily detected by initial visual inspection. bimetallic lugs price may appear normal, and the connecting screws may seem tight, but insufficient internal contact retention will manifest as intermittent failure, overheating, or high contact resistance after prolonged use.