Chemical earthing and normal earthing serve the same fundamental purpose—providing a safe path for electrical faults to flow into the ground. However, they differ in the materials and methods used.
Chemical Earthing involves using a mixture of conductive materials like copper or galvanized steel rods combined with a special chemical compound. This compound, often a blend of bentonite or graphite, enhances the conductivity of the earth around the electrode, reducing the resistance to the ground. Chemical earthing systems are typically more effective in areas with high soil resistivity, offering long-lasting performance and minimal maintenance.
Normal Earthing, on the other hand, relies on a simple metal rod or plate buried in the earth to create a path for electrical discharges. The effectiveness of normal earthing depends largely on the soil’s natural conductivity and moisture content, which can fluctuate over time, potentially leading to higher resistance and lower efficiency. Overall, chemical earthing offers improved safety and longevity compared to normal earthing.
