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110-220kV metal oxide (zinc oxide) surge arresters are mainly used for the protection of power transmission and transformation equipment for A.C.110-220kV system against damage from overvoltage.110-220kV zinc oxide arresters have the merit of the protection characteristic,large discharge ability,excellent proof-contaminate capacity,simple structure and stable reliability, so as to supply the best protection for transmission and transformation equipment.
The performance of 110-220kV zinc oxide arresters conform to the IEC99-4 and GB11032
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