Which of the following is NOT a function of grounding?

Enhancing circuit performance is not a primary function of grounding. Grounding primarily serves several crucial roles, primarily focusing on safety and providing effective electrical system performance in case of faults.

Grounding ensures safety by preventing electric shock to people by directing fault currents safely into the ground, thereby reducing the risk of accidental electrocution. It also provides a return path for fault currents, allowing circuit breakers and fuses to operate correctly to disconnect the power in the event of a fault. Additionally, grounding can help stabilize voltage levels, reducing the chances of electrical surges that could damage equipment.

In contrast, while a well-designed and properly grounded system can contribute to the overall performance and reliability of electrical circuits, performance enhancement itself is not the primary purpose of grounding. Instead, grounding focuses on safety and system protection functions.