Lightning Arrester Installation

A high voltage surge occurs, LA offers the least resistance path, and current flows through LA to the ground, avoiding any other path. Hence all other equipment such as transformers do not experience high voltage surges. As in the first picture, we can see the top flange. Coil spring to put pressure on and hold tight the ZnO column. FRP tube and FRP rod are used to improve the mechanical strength and insulation property of LA. FRP means fiber-reinforced plastic. Silica gel is used to keep internal parts of LA dry. A spacer tube is used to get desired height of LA. Bottom flange. Bottom pressure relief plate. This plate burst out in case of LA bursts and releases the pressure. And base plate. So this is the complete assembly of LA.