Lightning Protection System
A Lightning Protection System (LPS) is a system designed to protect a building and its occupants from the damaging effects of lightning strikes. Lightning strikes can cause fires, explosions, and damage to electrical and electronic equipment, and can pose a significant threat to human life.
An LPS typically consists of several components, including air terminals (also known as lightning rods), conductors, and ground electrodes. Air terminals are installed at the highest point of the building and are designed to intercept lightning strikes. Conductors are installed on the roof and exterior walls of the building and are used to conduct the lightning strike down to the ground. Ground electrodes are installed in the ground near the building and are used to safely dissipate the electrical energy from the lightning strike.
LPS systems are typically designed and installed in accordance with national and international standards, such as NFPA 780 or IEC 62305. The design of an LPS system will vary depending on the size and type of the building, the height of the building, the local climate, and other factors.
The purpose of an LPS system is to provide a low-impedance path for lightning current to flow safely to the ground, thereby reducing the risk of damage or injury. It is important to ensure that an LPS system is properly installed, tested, and maintained to ensure that it can effectively protect the building and its occupants from lightning strikes.