IEC 60050-131:2002 International Electrotechnical Vocabulary - Part 131: Circuit theory
IEC 60909-3:2009 Short-circuit currents in three-phase AC systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth (Edition 3.0)
IEC 60909-0:2016 history
2016IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
2002IEC 60909-0:2001/COR1:2002 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
2001IEC 60909-0:2001 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents