Explosion-proof lightning arrester

The invention provides an explosion-proof lightning arrester, which comprises an insulating jacket comprising a sealing port, a resistor assembly and a conductive plug, wherein the resistor assembly is positioned in the insulating jacket; the conductive plug is embedded into the sealing port of the insulating jacket and abuts against the resistor assembly; the conductive plug is configured to be capable of being separated from the sealing port of the insulating jacket under the action of gas generated by short circuit current in the insulating jacket. The explosion-proof lightning arrester can directionally release high-temperature and high-pressure gas to avoid explosion. 本发明提供了一种防爆避雷器，包括：绝缘外套，所述绝缘外套包括密封端口；电阻组件，其位于所述绝缘外套内部；以及导电塞，所述导电塞嵌入所述绝缘外套的密封端口且抵靠所述电阻组件；其中，所述导电塞被构造为能够在所述绝缘外套内部因短路电流所产生的气体的作用下从所述绝缘外套的密封端口脱离。本发明的防爆避雷器能够定向地释放高温高压气体以避免爆炸。