Electrochemical Corrosion Management And Maintenance Strategies For High-voltage Disconnect Switches

When high-voltage disconnect switches are exposed to complex environments in outdoor power systems for extended periods, their metal contacts are more susceptible to electrochemical corrosion under the influence of current. Over time, these surface changes can lead to performance degradation, altered contact resistance, and even malfunctions.

To address the potential impact of electrochemical corrosion on drop out fuse, from a material perspective, corrosion-resistant alloys, thickened plating, and protective coatings were selected to extend the service life of critical components. During construction and installation, strict control of the grounding environment and potential difference is implemented to minimize corrosion reactions caused by localized current concentrations.