2003DS/EN 60909-0:2003 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
1990DS/IEC 909:1990 Short-circuit calculation in three-phase a.c. systems
DS/IEC 909:1990 Short-circuit calculation in three-phase a.c. systems was changed to DS/EN 60909-0:2003 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents.