The surge protector is applied to AC 50/60Hz, 220/380V power system and protects against surge overvoltage of the electric system.
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According to the IEC definition, a surge is a transient waveform of electrical current, voltage, or power that travels along a line or circuit and has the characteristics of rapidly increasing and slowly decreasing. (IEC IEV 161-02-01) On days when it rains and lightning strikes, power outages or Internet and phone outages often occur. Also,