What is the purpose of grounding in electrical systems?

The purpose of grounding in electrical systems is to provide a safe path for fault current. Grounding is essential for ensuring safety in electrical installations. When there is a fault, such as a short circuit, the grounding system directs the fault current into the ground, which helps to prevent electric shock and reduce the risk of fire. This protective measure ensures that excess electrical energy does not build up, which could lead to equipment damage or dangerous conditions for people nearby. Additionally, grounding helps maintain a stable reference point for the electrical system, further enhancing safety and reliability.

Other options like enhancing electrical signals, improving energy efficiency, or stabilizing voltage levels do not relate directly to the primary role of grounding, which focuses on safety and protection against electrical faults.