Which of the following is NOT a reason for grounding electrical systems?

Grounding electrical systems serves several critical functions, but increasing energy efficiency is not one of them. The primary purpose of grounding is to establish a safe path for electrical current to flow in the event of a fault, which helps in preventing electrical shock hazards. This is essential for protecting individuals from unsafe voltages and ensuring that any stray currents have a safe route to the ground.

Furthermore, grounding contributes to system stability by providing a reference point for the electrical service, helping to maintain voltage levels during transient conditions. It also plays a key role in reducing voltage surges that can occur due to lightning strikes or other disturbances, safeguarding equipment and preventing damage.

While energy efficiency is a desirable outcome in electrical systems, it is not directly related to the grounding process. Grounding focuses primarily on safety and stability, rather than improving the efficiency of energy consumption.