ESE Lightning Arrester

  1. What is a lightning arrester? Lightning arrester A  lightning arrester  is a device used to protect buildings, power lines, electrical equipment, & structures from the voltage surges caused by lightning strikes. They are installed at the top of the structures to create a passage for the surge voltage from lightning, to flow into the earth. 2. Why do we need a lightning arrester? Lightning Protection System When  lightning strikes  the structures, it passes into the ground by following the lowest resistance path. It might be the walls, power cables, or electronic devices. A lighting arrester creates a bypass for the safe transfer of the voltage to the ground. In other words, lighting arresters protect the structures & equipment from the damage caused by the lightning strike. In high-rise buildings, it is a must to install the arresters, as there is a high probability of lightning strikes or damages caused by the surge voltage. 3. What is the cost of a lightning arrester for