STM PDF

Short-circuit currents in three-phase AC systems - Part 4- Examples for the calculation of short-circuit currents. IEC TR 60909-4:2021-06(en). Original standard IEC TR 60909-4-2021 in PDF full version. Additional info + preview on request

Document status: Active

Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 1- Steady-state conditions. IEC TR 60919-1:2020-04(en). Original standard IEC TR 60919-1-2020 in PDF full version. Additional info + preview on request

Document status: Active

Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2- Faults and switching. IEC TR 60919-2:2008-11+AMD1:2015-06+AMD2:2020-04 CSV(en). Original standard IEC TR 60919-2-2020 in PDF full version. Additional info + preview on request

Document status: Active

Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 3- Dynamic conditions. IEC TR 60919-3:2009-10+AMD1:2016-03+AMD2:2021-10 CSV(en). Original standard IEC TR 60919-3-2021 in PDF full version. Additional info + preview on request

Document status: Active

Guidelines for administrative, medical and nursing staff concerned with the safe use of medical electrical equipment and medical electrical systems. Original standard IEC TR 60930-2008 in PDF full version. Additional info + preview on request

Document status: Active

Additional requirements for enclosed switchgear and controlgear from 1 kV to 72.5 kV to be used in severe climatic conditions. CEI/IEC 60632:1988. Original standard IEC TR 60932-1988 in PDF full version. Additional info + preview on request

Document status: Active