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    Jiangsu Sieyuan Hertz Instrument

    Jiangsu Sieyuan Hertz Instrument
    Transformer Co., Ltd.
    No. 1, West Huimin Road
    Economic Development Zone
    Rugao
    226572
    China
    BSI logo

    Certificate number: EMS 661555
    Scope: The design and manufacture of gas current transformers (below and include 550kV), gas voltage transformers (below and include 1100kV), bushing (below and include 800kV).
    550kV及以下气体电流互感器、1100kV及以下气体电压互感器、800kV及以下套管的设计与制造。

    Standard/Scheme number or name Start Date Expiry Date
    ISO 14001:2015 2016-11-07 2028-11-06

    Certificate number: FM 661556
    Scope: The design and manufacture of gas current transformers (below and include 550kV), gas voltage transformers (below and include 1100kV), bushing (below and include 800kV).
    550kV及以下气体电流互感器、1100kV及以下气体电压互感器、800kV及以下套管的设计与制造。

    Standard/Scheme number or name Start Date Expiry Date
    ISO 9001:2015 2016-11-07 2028-11-06

    Certificate number: OHS 661557
    Scope: The design and manufacture of gas current transformers (below and include 550kV), gas voltage transformers (below and include 1100kV), bushing (below and include 800kV).
    550kV及以下气体电流互感器、1100kV及以下气体电压互感器、800kV及以下套管的设计与制造。

    Standard/Scheme number or name Start Date Expiry Date
    ISO 45001:2018 2019-10-16 2028-11-06