International Electrotechnical Commission
IEC/TS: 62271-304; Technical Specification; High-voltage switchgear and controlgear part 304: Design classes for indoor enclosed switchgear and controlgear for rated volatages above1kV up to and including 52 kV to be used in severe climatic conditions - 1.0 - Geneva International Electrotechnical Commission 2008 - 11/08/2009
/
IEC/TS: 62271-304; Technical Specification; High-voltage switchgear and controlgear part 304: Design classes for indoor enclosed switchgear and controlgear for rated volatages above1kV up to and including 52 kV to be used in severe climatic conditions - 1.0 - Geneva International Electrotechnical Commission 2008 - 11/08/2009
/
