IEC 60099-4 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
IEC 60099-5 Surge arresters - Part 5: Selection and application recommendations*， 2018-01-19 Update
IEC 60099-9 Surge arresters - Part 9: Metal-oxide surge arresters without gaps for HVDC converter stations
IEC 60168 Tests on indoor and outdoor post insulators of ceramic material or glass for systems with nominal voltages greater than 1000 V
IEC 60507 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems; Corrigendum 1*， 2018-07-31 Update
IEC 60549 High-voltage fuses for the external protection of shunt capacitors
IEC 60871 Shunt capacitors for AC power systems having a rated voltage above 1000 V - Part 4: Internal fuses
IEC 60871-1:2014 Shunt capacitors for AC power systems having a rated voltage above 1000 V - Part 1: General
IEC 60871-4 Shunt capacitors for AC power systems having a rated voltage above 1000 V - Part 4: Internal fuses
IEC 60931-3 Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1000 V - Part 3: Internal fuses
IEC 61000-4-7 Electromagnetic compatibility (EMC) - Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto
IEC 61803:1999 Determination of power losses in high-voltage direct current (HVDC) converter stations
IEC 61869-2 Instrument transformers - Part 2: Additional requirements for current transformers
IEC 61869-3 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
IEC 61869-5 Corrigendum 1 - Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
IEC 61975 High-voltage direct current (HVDC) installations - System tests*， 2016-09-01 Update
IEC TR 60071-4 Insulation co-ordination - Part 4: Computational guide to insulation co-ordination and modelling of electrical networks
IEC TR 60146-1-2 Semiconductor converters - General requirements and line commutated converters - Part 1-2: Application guidelines*， 2019-10-22 Update
IEC TR 60919-1 Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 1: Steady-state conditions*， 2020-04-16 Update
IEC TR 60919-2 Amendment 2 - Performance of high-voltage direct current (HVDC) systems with line-commutated converters - Part 2: Faults and switching*， 2020-04-27 Update
IEC TR 60919-3 AMENDMENT 1 Performance of high-voltage direct current (HVDC) systems with line-commutated converters – Part 3: Dynamic conditions (Edition 2.0)
IEC TR 61000-2-1 Electromagnetic compatibility (EMC) Part 2: Environment Section 1: Description of the environment - electromagnetic environment for low-frequency conducted disturbances and signalling in public power supply systems (Edition 1.0)
IEC TR 61000-3-6 Electromagnetic compatibility (EMC) - Part 3-6: Limits - Assessment of emission limits for the connection of distorting installations to MV, HV and EHV power systems
IEC TS 60815-1 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles
IEC TS 60815-2 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems