What is the main purpose of grounding in electrical systems?

The main purpose of grounding in electrical systems is to provide safety by preventing electric shock and stabilizing voltage levels. Grounding serves as a protective measure that directs excess electrical energy away from people and sensitive equipment by connecting electrical systems to the Earth. This connection establishes a reference point for the electrical system, ensuring that the voltage levels remain stable and reducing the risk of electrical shock that may arise due to insulation failures or unexpected surges.

In addition to enhancing safety, grounding helps to protect equipment from transient voltage spikes which can occur due to lightning strikes or other electrical disturbances. By providing a pathway for fault currents to safely dissipate into the ground, grounding protects both human life and the integrity of the electrical system. This aspect of grounding is crucial in maintaining safe operation and compliance with electrical codes and standards.