A lightning protection system (LPS) is a system designed to protect a structure and its occupants from the damaging effects of a lightning strike. This is achieved by providing a path of least resistance for the lightning to follow, thereby preventing the lightning from causing damage to the structure or igniting fires.
An LPS typically includes components such as lightning rods, air terminals, grounding systems, and surge protection devices. The lightning rods are typically placed on the highest points of the structure and act as a target for lightning strikes. The air terminals provide a path for the lightning to follow to the ground, and the grounding system provides a low-resistance path for the lightning to follow to the earth. The surge protection devices are used to protect electrical equipment and systems within the structure from damage caused by the surge in electrical current that occurs during a lightning strike.
LPS design and installation is typically done by specialized engineers and contractors, who use industry standards and guidelines to ensure the system meets the specific needs of the structure and its occupants. Proper maintenance and testing of the LPS is also important to ensure its continued effectiveness in protecting the structure from lightning damage.
Overall, a properly designed and installed LPS can provide peace of mind for building owners and occupants, as it helps to reduce the risk of damage or destruction from lightning strikes.