Explanation Of Abnormal Current Test Caused By Poor Contact In Bimetallic Terminal Blocks.

The internal metal contact surfaces of component bimetallic lugs price list are responsible for current conduction. Oxidation, contamination, metal fatigue, or loose screws on these surfaces will increase contact resistance. Increased resistance will result in lower or unstable current measurements through component cable lug bimetal, or even significant fluctuations.

Insufficient clamping force in component bimetallic lugs can also cause slight displacement of the contact surfaces due to long-term temperature changes, vibration, or frequent insertions and removals. Thermal expansion and contraction, as well as vibration, can induce micro-friction wear, which further affects the conductivity between metal parts.

During system testing, if the current in the circuit containing component bi metal cable lug is significantly lower than expected, or if the current value fluctuates wildly, the contact condition of component bi metal lugs connectors should be investigated. Visual inspection of the contacts for corrosion and contamination, checking the bolt torque for compliance, and measuring the terminal contact resistance using the four-wire method are recommended to confirm whether poor contact is the cause.