Which statement about line surges is correct?

Line surges refer to sudden increases in voltage lasting for a short period of time, often caused by events such as lightning strikes, switching operations, or faults in the power grid. The correct statement emphasizes that grounding is an effective measure to mitigate these surges. When a surge occurs, a properly installed grounding system provides a low-resistance path for the excess electricity to dissipate safely into the ground.

By connecting equipment to the ground, the additional voltage from a line surge is redirected, which can minimize harm to electrical systems and maintain operational integrity. This reduces the likelihood of electrical equipment failure or damage, protecting sensitive electronics and reducing risk.

Understanding the efficient function of grounding in limiting the detrimental effects of line surges is crucial for ensuring the safety and reliability of electrical installations.