The Influence Of Minor Resistance Changes On Cable Terminal Testing

The material, surface roughness, and contact pressure of the Aluminum Cable Lug contact surface all affect the actual resistance. Non-uniformity at the contact point creates multiple micro-contact areas; the resistance differences in these micro-areas amplify the overall impedance of the circuit, manifesting as abnormal readings in high-precision measurements. This phenomenon is similarly described in connector contact resistance studies; even a small increase in contact resistance can alter the judgment criteria of test results.

Environmental factors such as temperature fluctuations and mechanical vibrations can cause slight changes in the contact resistance of the Compression Cable Lug, affecting the measurement instrument's ability to identify the actual circuit state. Such recurring changes can manifest as misjudgments or intermittent errors in continuous monitoring systems, as the equipment may interpret these changes as cable insulation or open circuit problems.