Electrical Contact Resistance Evolution and Interface Fretting Wear Characteristics of Conductor-Parallel Groove Clamp System Response to Breeze Vibration Environment

The issue of fretting wear failure of electrical contacts in conductor-parallel groove clamp system might be brought on by breeze vibration. This study discusses the fretting wear behavior of overhead conductor-wire clamp systems in wind-vibration environments and uses energy spectrometry, laser confocal microscopy, and scanning electron microscopy to analyze the wear surfaces and their morphology. The findings indicate an optimal interval for both the electrical contact performance and contact resistance, and that an increase in installation torque leads to a large drop in contact resistance. As serving time increases, the contact interface’s ongoing micromotion degradation will negatively impact the electrical contact performance. The increase in temperature has a significant effect on the micromotion wear.