Performance Of Copper-clad Grounding Rods Under Soil Moisture Conditions

In soils with high moisture content, the presence of the conductive medium alters the surrounding electric field distribution, resulting in significant differences in ground resistivity characteristics. Because of the composite metal properties of copper bonded ground rods, which has a copper layer and a steel core, earthing rod copper can extend the material's lifespan in more corrosive, moist soil.

When soil is dry, ground resistivity tends to increase, and grounding electrodes made of single materials are prone to changes in contact resistance. In this condition, the copper rod for earthing uses a composite process to uniformly cover the low-carbon steel core with a copper layer. This coverage improves the surface-to-soil contact performance and helps maintain a more stable contact current distribution.

For alternating wet and dry soil conditions, engineers refer to the physical properties of the 8ft copper ground rod when designing grounding systems. Due to the combined properties of pure copper and steel, copper bonded rod can maintain a relatively consistent physical response under different soil moisture contents.