The grounding system is the core foundation of an electrical protection system. Its primary function is to provide a safe path for fault currents and lightning currents to be discharged into the ground, thereby protecting people, equipment, and electrical installations.

A proper grounding system must not only possess a low earth resistance value but must also be designed according to soil characteristics, environmental conditions, and applicable standards. In industrial facilities and substations, the grounding system plays a vital role in maintaining power system stability and reducing the risk of operational disruptions.

Periodic testing using an earth resistance tester as well as visual inspections are essential to ensure grounding performance remains optimal throughout its operational lifespan.