Why is bonding important in lightning protection systems?

Bonding is crucial in lightning protection systems because it serves to minimize potential differences during a lightning strike. When lightning strikes, it creates a massive surge of electrical energy that can cause significant damage if it travels through different conductive paths. By bonding various elements of a lightning protection system together—such as lightning rods, grounding electrodes, metal components of the structure, and other conductive materials—potential differences between these components are equalized.

This equalization helps to prevent the development of dangerous voltages that can lead to electrical arcing and associated damage. By ensuring that all bonded components share the same electrical potential, the risk of injury and equipment damage during a lightning event is greatly reduced. This is particularly important in protecting sensitive electronic equipment and ensuring the safety of individuals within the structure.