Common use of Grounding System Performance Check Clause in Contracts

Grounding System Performance Check. Test the original installation periodically to determine whether resistance is remaining constant or is increasing. An increase in resistance can be caused by several factors. In lower conductive soils, high electric fields can develop at the ends of the ground rods, which can cause arcing in the soil. This arcing can cause glassification around the rods, beginning at the tip, and working its way upward. This glassification of the silica in the soil acts as an insulator, severely impairing the grounding characteristics of the rod. If resistance increases over time to an undesirable level, reduce the resistance by adding electrodes or chemically treating the soil to increase moisture content.

Grounding System Performance Check. Test the original installation periodically to determine whether resistance is remaining constant or is increasing. An increase in resistance can be caused by several factors. In lower conductive soils, high electric fields can develop at the ends of the ground rods, which can cause arcing in the soil. This arcing can cause glassification around the rods, beginning at the tip, and working its way upward. This glassification of the silica in the soil acts as an insulator, severely impairing the grounding characteristics of the rod. If resistance increases over time to an undesirable level, reduce the resistance by adding electrodes or chemically treating the soil to increase moisture content. 3. Computing Resistance to Ground