IEC 62271-201:2014 High-voltage switchgear and controlgear - Part 201: AC solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
IEC 60050-101:1998 International Electrotechnical Vocabulary - Part 101: Mathematics
IEC 60050-102:2007 International Electrotechnical Vocabulary - Part 102: Mathematics - General concepts and linear algebra
IEC 60050-103:2009 International Electrotechnical Vocabulary - Part 103: Mathematics - Functions
IEC 60050-111:1996 International Electrotechnical Vocabulary - Chapter 111: Physics and chemistry
IEC 60050-112:2010 Vocabulaire Electrotechnique International – Partie 112: Grandeurs et unités (Edition 1.0)
IEC 60050-113:2011 International Electrotechnical Vocabulary - Part 113: Physics for electrotechnology
IEC 60050-121:1998 International Electrotechnical Vocabulary - Part 121: Electromagnetism
IEC 60050-55:1970 International Electrotechnical Vocabulary. Part 55 : Telegraphy and telephony
IEC 62271-201:2014 history
2014IEC 62271-201:2014 High-voltage switchgear and controlgear - Part 201: AC solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
2006IEC 62271-201:2006 High-voltage switchgear and controlgear - Part 201: AC insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV