What is the purpose of grounding in electrical installations?

The purpose of grounding in electrical installations is primarily to provide a path for fault current to ensure safety and prevent shock hazards. When electrical faults occur, such as a short circuit, grounding allows the excess current to flow safely into the earth instead of through a person who might come in contact with the electrical system. This effectively reduces the risk of electric shock and protects both personnel and equipment from damage due to electrical faults.

Grounding is an essential safety measure that minimizes the potential for dangerous situations by directing fault levels away from people and sensitive equipment. It creates a reference point in the electrical system, stabilizing voltage levels and providing a safety backup that helps prevents hazardous electrical buildup.

While the other options touch upon aspects of electrical systems, they do not align with the primary function of grounding. Improving energy efficiency, reducing electrical noise, or storing energy for backup systems do not directly relate to the critical safety aspect of grounding.