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schill electrical components refer to lightning arrestor tubes or antenna switch tubes used for overvoltage protection. The tube contains two or more electrodes and is filled with a certain amount of inert gas. A gas discharge tube is a gap-type lightning protection component used in the lightning protection of communication systems. A gas discharge tube is a gap-type lightning protection component that has been widely used in the lightning protection of communication systems. Discharge tubes are often used in the first or first two stages of multi-stage protection circuits to discharge instantaneous lightning overcurrents and limit overvoltages. Due to the inter-electrode insulation resistance of the discharge tube