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

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

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Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Faults and switching. Original standard PD IEC TR 60919-2-2008 + A2-2020 in PDF full version. Additional info + preview on request

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Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Dynamic conditions. Original standard PD IEC TR 60919-3-2009 + A2-2021 in PDF full version. Additional info + preview on request

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Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals. Original standard PD IEC TR 60943-2009 in PDF full version. Additional info + preview on request

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Medical electrical equipment. Medical electron accelerators. Guidelines for functional performance characteristics. Original standard PD IEC TR 60977-2008 in PDF full version. Additional info + preview on request

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