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  • Users: KeorcZhang
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  1. KeorcZhang

    Circuit Breakers: Air vs. SF6 Insulated

    i agree Saltan's opinion. It is popular to use VCB in medium voltage system (=<35kV) in china. meanwhile SF6-insulated breaker is for high voltage system. Oil-insulated breaker is outdated since it is difficult to maintain. There is no manufactory to supply MV or HV Air-insulated breaker,which...
  2. KeorcZhang

    China CCC mark

    hope u can find some useful information at this website: http://www.ccc-cn.org/cccindex.htm

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