The fourth part of a lightning protection system primarily uses what to handle electrical surges?

The fourth part of a lightning protection system primarily utilizes surge suppression devices to effectively manage electrical surges that occur when lightning strikes or during electrical disturbances. These devices are specifically designed to protect electrical equipment and systems from the high-voltage and high-current surges that accompany lightning events. By diverting or limiting the surge's voltage to a safe level, surge suppression devices help prevent damage to sensitive electronic components, which can be crucial for maintaining operational integrity in various applications, including telecommunications, industrial equipment, and building electrical systems.

Surge suppression devices can absorb excess energy and facilitate a safe path for it, thereby preserving the functionality and lifespan of the equipment. This makes them an essential component in a comprehensive lightning protection system, as they complement other elements like grounding wires and metal conductors, which serve different purposes in managing lightning threats.