Arc Breakdown Resistance Characteristics Of Copper-clad Grounding Rods

copper clad ground rods is manufactured using a copper-steel composite material, combining high conductivity with mechanical strength. The copper layer on the surface ensures the conductivity when in contact with the soil, while the steel core improves the overall mechanical strength, making the copper coated earthing rod less prone to deformation or breakage when subjected to impact loads.

When faced with transient high-voltage events, the electric field distribution between the copper plated ground rod surface and the surrounding medium can affect the partial discharge behavior. The surface resistance and conductive path design of copperbond earth rod determine its response to arc-carrying current paths. A highly conductive surface helps suppress the generation of local hot spots, thereby reducing arc-induced local breakdown.