Technical committees and subcommittees
IEC technical committees are composed of experts sent by IEC National Committee. Please contact your NC if you would like to participate in IEC work.
List of TC/SCs
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Globally relevant standards
Expertise and consensus

Thousands of experts participate in IEC standardization work in IEC technical committees and subcommittees (TC/SCs). They are chosen by their National Committee (NC) to share their technical expertise and represent the national requirements of industry, government, test & research laboratories, academia or user groups at the global level in the IEC. 

The IEC offers these experts a neutral and independent platform where they can discuss and agree on state-of-the-art technical solutions with global relevance and reach. These are published as voluntary, consensus-based international standards.

Each TC defines its scope and area of activity, which it submits to the IEC Standardization Management Board (SMB) for approval.

A TC can form one or more SCs depending on the extent of its work programme. Each SC defines its scope and reports directly to the parent TC.

The SMB also establishes project committees which prepare individual standards that don’t fall within the scope of an existing TC or SC. Project committees are disbanded once the standard has been published.

Facts and figures

TC/SCs
Technical Committees109
Subcommittees101
Total210
WGs
Working Groups696
Project Teams185
Maintenance Teams638
Total1519
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  • Table TCs
  • Table Disbanded TCs

IEC technical committees and subcommittees

List of TC/SCs
Committee Title Publications Work Programme SBP
Terminology 235 12
Rotating machinery 72 18
Documentation, graphical symbols and representations of technical information 40 9
Graphical symbols for use on equipment 13 2
Classes, Properties and Identification of products - Common Data Dictionary (CDD) 9
Hydraulic turbines 34 8
Steam turbines 5 2
Overhead electrical conductors 21 5
System aspects of electrical energy supply 12 18
Grid Integration of Renewable Energy Generation 9
Decentralized Electrical Energy Systems 2 8
Network Management
Electrical equipment and systems for railways 154 11
Fluids for electrotechnical applications 61 10
Overhead lines 13 2
Electrical energy measurement and control 73 9
Power transformers 45 7
Solid electrical insulating materials 228 9
High-voltage switchgear and controlgear 4 3
Switching devices 43 12
Assemblies 23 10
Electrical installations of ships and of mobile and fixed offshore units 47 13
Electric cables for ships and mobile and fixed offshore units 12 1
Electric cables 252 7
Secondary cells and batteries 47 10
Secondary cells and batteries containing alkaline or other non-acid electrolytes 27 6
Power electronic systems and equipment 10 1
Stabilized power supplies 10 1
Power electronics for electrical transmission and distribution systems 70 14
Adjustable speed electric power drive systems (PDS)   25 7
Uninterruptible power systems (UPS) 13 5
Electrical accessories 24 11
Cable management systems 32 8
Plugs, socket-outlets and switches 61 4
Circuit-breakers and similar equipment for household use 68 7
Appliance couplers 15 4
Plugs, Socket-outlets and Couplers for industrial and similar applications, and for Electric Vehicles 24 9
Switches for appliances 12 1
Electrical Energy Efficiency products 1 2
Quantities and units 26 5
Electric welding 25 6
Industrial electroheating and electromagnetic processing 30 9
Electroacoustics 76 11
Equipment for explosive atmospheres 62 9
Intrinsically-safe apparatus 12 2
Classification of hazardous areas and installation requirements 11 4
Non-electrical equipment and protective systems for explosive atmospheres 9 1
Fuses 3 3
High-voltage fuses 8
Low-voltage fuses 23 7
Miniature fuses 23 5
Power capacitors and their applications 40 5
Lighting 54 14
Electric light sources 167 18
Lamp caps and holders 231 2
Auxiliaries for lamps 71 14
Luminaires 51 14
Primary cells and batteries 16 5
Insulators 50 17
Insulated bushings 7 2
Surge arresters 7 1
Low-voltage surge protective devices 12 3
Components for low-voltage surge protection 9 6
Instrument transformers 21 19
Capacitors and resistors for electronic equipment 168 28
High-voltage and high-current test techniques 15 8
Safety of machinery - Electrotechnical aspects 33 9
Nuclear instrumentation 29 7
Instrumentation, control and electrical power systems of nuclear facilities 103 20
Radiation protection instrumentation 62 5
Cables, wires, waveguides, RF connectors, RF and microwave passive components and accessories 65 19
Coaxial cables 83 8
Wires and symmetric cables 70 10
RF and microwave passive components 120 18
Semiconductor devices 125 20
Integrated circuits 86 8
Semiconductor devices packaging 58 6
Discrete semiconductor devices 55 14
Micro-electromechanical systems 36 4
Electrical connectors and mechanical structures for electrical and electronic equipment 1
Electrical connectors 257 24
Mechanical structures for electrical and electronic equipment 40 3
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection 97 5
Magnetic components, ferrite and magnetic powder materials 74 7
Winding wires 166 4
Dependability 61 10
Power systems management and associated information exchange 211 47
Performance of household and similar electrical appliances 15 7
Electric dishwashers 6 1
Electrical heating appliances for household and similar purposes 16 8
Performance of household and similar electrical laundry appliances 13
Surface cleaning appliances 10 7
Performance of household and similar electrical cooking appliances 11 6
Small household appliances 34 5
Performance of electrical household and similar cooling and freezing appliances 8 3
Safety of household and similar electrical appliances 288 9
Safety of microwave appliances for household and commercial use 8 3
Safety of refrigeration appliances for household and commercial use 12 1
Appliances for air-conditioning for household and similar purposes 4 4
Safety of electrically-operated farm appliances 14
Electrical motor-operated cleaning appliances for commercial use 13 6
Electrical equipment in medical practice 1 1
Common aspects of electrical equipment used in medical practice 81 8
Diagnostic imaging equipment 81 13
Equipment for radiotherapy, nuclear medicine and radiation dosimetry 41 9
Electromedical equipment 100 19
Electrical installations and protection against electric shock 79 19
Industrial-process measurement, control and automation 37 22
System aspects 53 12
Measurement and control devices 104 10
Industrial networks 163 29
Devices and integration in enterprise systems 107 34
Safety of measuring, control and laboratory equipment 41 4
Magnetic alloys and steels 61 8
Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks 25 31
Degrees of protection provided by enclosures 14 1
Automatic electrical controls 34 7
Short-circuit currents 14 1
Optical radiation safety and laser equipment 34 13
Electromagnetic compatibility 18 1
EMC - Low frequency phenomena 87 9
High frequency phenomena 24 3
High power transient phenomena 27 2
Live working 66 11
Alarm and electronic security systems 55 6
Maritime navigation and radiocommunication equipment and systems 76 18
Lightning protection 19 5
Solar photovoltaic energy systems 149 76
Measuring equipment for electrical and electromagnetic quantities 85 7
Fibre optics 27 3
Fibres and cables 113 24
Fibre optic interconnecting devices and passive components 259 52
Fibre optic systems and active devices 141 11
Ultrasonics 60 7
Wind energy generation systems 40 20
Fire hazard testing 49 14
Superconductivity 27 4
Electronics assembly technology 191 28
All-or-nothing electrical relays 17 4
Measuring relays and protection equipment 15 7
Transformers, reactors, power supply units, and combinations thereof 23 4
Electrical installations for lighting and beaconing of aerodromes 8 3
Insulation co-ordination and system engineering of high voltage electrical power installations above 1,0 kV AC and 1,5 kV DC 12 6
Audio, video and multimedia systems and equipment 92 4
Terminals for audio, video and data services and contents 40 4
Colour measurement and management 18 4
Digital system interfaces and protocols 33 2
Cable networks for television signals, sound signals and interactive services 27 6
Storage media, storage data structures, storage systems and equipment 140 1
Multimedia e-publishing and e-book technologies 11 1
Wireless Power Transfer 7 6
Active Assisted Living (AAL), wearable electronic devices and technologies, accessibility and user interfaces 7 1
Multimedia systems and equipment for vehicles 4 7
Multimedia home systems and applications for end-user networks 50 3
Environmental and energy aspects for multimedia systems and equipment 14 7
Analogue and digital audio 100 11
Electrostatics 38 5
Transmitting equipment for radiocommunication 39 2
Environmental conditions, classification and methods of test 134 7
Fuel cell technologies 24 10
Methods for the assessment of electric, magnetic and electromagnetic fields associated with human exposure 31 7
Process management for avionics 29 4
Safety of electronic equipment within the field of audio/video, information technology and communication technology 33 2
Insulation co-ordination for low-voltage equipment 12
Electronic displays 173 51
Environmental standardization for electrical and electronic products and systems 27 14
Evaluation and qualification of electrical insulating materials and systems 77 21
Nanotechnology for electrotechnical products and systems 47 54
Marine energy - Wave, tidal and other water current converters 17 6
High Voltage Direct Current (HVDC) transmission for DC voltages above 100 kV 11 12
Safety of motor-operated electric tools 131 8
Solar thermal electric plants 5 8
Smart grid user interface 4
Printed Electronics 25 22
Electrical Energy Storage (EES) Systems 7 11
Switchgear and controlgear and their assemblies for low voltage 1 1
Low-voltage switchgear and controlgear 77 9
Low-voltage switchgear and controlgear assemblies 17 3
UHV AC transmission systems 4 4
Management of network assets in power systems 2
Wearable electronic devices and technologies 17
Personal e-Transporters (PeTs) 2
Binary power generation systems 1
Low-voltage auxiliary power systems for electric power plants and substations 4
Operation of electrical installations
International special committee on radio interference
Radio-interference measurements and statistical methods 52 5
Interference relating to industrial, scientific and medical radio-frequency apparatus, to other (heavy) industrial equipment, to overhead power lines, to high voltage equipment and to electric traction 13 9
Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal combustion engine powered devices 6 2
Interference relating to household appliances tools, lighting equipment and similar apparatus 6 3
Limits for the protection of radio services 11 2
Electromagnetic compatibility of information technology equipment, multimedia equipment and receivers 8 2
Steering Committee
Active Assisted Living 3 13
Communication Technologies and Architectures
Low Voltage Direct Current and Low Voltage Direct Current for Electricity Access 4
Smart Manufacturing 1
Electrotechnical aspects of Smart Cities 1 14
Smart Energy 11 3
Information technology 496
Coded character sets 52
Telecommunications and information exchange between systems 389
Software and systems engineering 197
Cards and security devices for personal identification 104
Programming languages, their environments and system software interfaces 109
Digitally Recorded Media for Information Interchange and Storage 135
Computer graphics, image processing and environmental data representation 85
Interconnection of information technology equipment 232 16
Information security, cybersecurity and privacy protection 198
Office equipment 35
Coding of audio, picture, multimedia and hypermedia information 571
Automatic identification and data capture techniques 127
Data management and interchange 94
Document description and processing languages 79
User interfaces 79
Information technology for learning, education and training 52
Biometrics 131
Cloud Computing and Distributed Platforms 21
Sustainability for and by Information Technology 20
IT Service Management and IT Governance 27
Internet of things and related technologies 26 19
Artificial Intelligence 6
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Disbanded technical committees / subcommittees

IEC committees & groups
Committee Title Status Remark
SC 2A Turbine type generators Disbanded Work taken over by TC 2
SC 2B Mounting dimensions and output series Disbanded Work taken over by TC 2
SC 2C Classification of insulating materials Disbanded Work taken over by TC 2
SC 2D Losses and efficiency Disbanded Work taken over by TC 2
SC 2E Impulse voltage tests on rotating machines Disbanded Work taken over by TC 2
SC 2F Carbon brushes, brush-holders, commutators and slip-rings Disbanded Work taken over by TC 2
SC 2G Test methods and procedures Disbanded Work taken over by TC 2
SC 2H Degrees of protection, methods of cooling and mounting arrangements Disbanded Work taken over by TC 2
SC 2J Classification of insulation systems for rotating machinery Disbanded Work taken over by TC 2
SC 3A Graphical symbols for diagrams Disbanded Work taken over by TC 3
SC 3B Documentation Disbanded Work taken over by TC 3
TC 6 Lamp sockets and caps Disbanded
TC 12 Radiocommunications Disbanded Work taken over by TC 100
SC 12A Radio receiving equipment Transformed Transformed into TA 1
SC 12B Safety Disbanded Transformed into TC 108
SC 12C Radio transmitting equipment Transformed Transformed into TC 103
SC 12E Radio relay and satellite communication systems Transformed Transformed into TC 102
SC 12F Equipment used in the mobile services Transformed Transformed into TC 102
SC 12G Cabled distribution systems Transformed Transformed into TA 5
SC 13A Electric energy measuring equipment Disbanded Work taken over by TC 13
SC 13B Electrical measuring instruments Disbanded Work taken over by TC 85
SC 13C Electronic measuring instruments Disbanded Work taken over by TC 85
SC 14B TC 14/SC 14B Obsolete
SC 14C TC 14/SC 14C Obsolete
SC 14D Small power transformers and reactors and special transformers and reactors Disbanded Transformed into TC 96
SC 15A Short-time tests Disbanded Work taken over by TC 15
SC 15B Endurance tests Disbanded Work taken over by TC 15
SC 15C Specifications Transformed This subcommittee was transferred into TC 15 (see SMB-Decision 123/12)
SC 15D Electrostatics Transformed Transformed into TC 101
SC 15E Methods of test Transformed See 15E/204/RM. Transformed into TC 112
TC 16 Basic and safety principles for man-machine interface, marking and identification Disbanded Work taken over by TC 3
SC 16A Terminal marking of rotating machines Disbanded Work taken over by TC 16
SC 16E TC 16/SC 16E Obsolete
SC 16F TC 16/SC 16F Obsolete
SC 17B Low-voltage switchgear and controlgear Disbanded Transformed into SC 121A
SC 17D Low-voltage switchgear and controlgear assemblies Disbanded Transformed into SC 121B
TC 19 Internal-combustion engines Disbanded
SC 20A High-voltage cables Disbanded Work taken over by TC 20
SC 20B Low-voltage cables Disbanded Work taken over by TC 20
SC 20C Burning characteristics of electric cables Disbanded Work taken over by TC 20
SC 22A Mercury-arc convertors Disbanded Work taken over by TC 22
SC 22B Semiconductor converters Disbanded Work taken over by TC 22
SC 22C Ignitions and excitrons Disbanded Work taken over by TC 22
SC 22D Electronic power converters for rolling stock Disbanded Work taken over by TC 9
SC 23C World-wide plug and socket-outlet systems Disbanded Work taken over by SC 23B
SC 23F Connecting devices Disbanded Work taken over by TC 23
TC 24 Electric and magnetic quantities and units Disbanded
TC 28 Insulation co-ordination Disbanded Work taken over by TC 99
SC 28A Insulation co-ordination for low-voltage equipment Transformed Transformed into TC 109
SC 29A Sound recording Disbanded Work taken over by TC 29
SC 29B Audio engineering Disbanded Work taken over by TC 29
SC 29C Measuring devices Disbanded Work taken over by TC 29
SC 29D Ultrasonics Disbanded Work taken over by TC 29
TC 30 Extra-high voltages Disbanded
SC 31A Flameproof enclosures Disbanded Acc. to 31/500/Q and 31/519/RQ - This SC will be disbanded at TC 31 plenary meeting in Braunschweig/DE on 2004-10-06/07
SC 31C Increased safety apparatus Disbanded Work taken over by TC 31
SC 31D Pressurization and associated techniques Disbanded Work taken over by TC 31
SC 31H Apparatus for use in the presence of ignitable dust Disbanded Work taken over by TC 31
SC 31K Encapsulation Disbanded Work taken over by TC 31
SC 31L Electrical apparatus for the detection of flammable gases Disbanded Work taken over by TC 31
SC 36B Insulators for overhead lines Disbanded Work taken over by TC 36
SC 36C Insulators for substations Disbanded Work taken over by TC 36
TC 39 Electronic tubes Disbanded Work taken over by TC 110
TC 41 Electrical relays Disbanded Work taken over by TC 94 and TC 95
SC 41A All-or-nothing relays Disbanded Transformed into TC 94
SC 41B Measuring relays Disbanded Transformed into TC 95
TC 43 Electric fans for household and similar purposes Disbanded
SC 46B Waveguides and their accessories Disbanded Work taken over by TC 46
SC 46D R.F. connectors Disbanded Work taken over by TC 46
SC 47B Microprocessor systems Disbanded Work taken over by JTC 1/SC 25
SC 47C Optoelectronic, display and imaging devices Transformed Transformed into TC 110
SC 48A Sockets and accessories for electronic plug-in devices Disbanded Work taken over by TC 48
SC 48C Switches Transformed Transformed into SC 23J
TC 50 Environmental testing Transformed Transformed into TC 104
SC 50A Vibration, impact and other dynamic tests Transformed Transformed into TC 104
SC 50B Climatic tests Transformed Transformed into TC 104
TC 52 Printed circuits Disbanded TC 52 has been merged into TC 91 (Decision N° 105 taken at the CA of 1999-06-14/15 in Geneva and Decision N° 106/10 taken at the CA of 1999-10-21 in Kyoto)
TC 53 Computers and information processing Disbanded
TC 54 Household appliances for refrigeration and air-conditioning Disbanded Work taken over by TC 61
SC 54A Appliances for air-conditioning for household and similar purposes Disbanded Work taken over by TC 61
TC 58 Methods of measurement of electrical properties of metallic materials Disbanded
SC 59B Cooking ranges, working tables, ovens and similar appliances Disbanded Transformed into SC 59K
SC 59E Ironing and pressing appliances Transformed Transformed into SC 59L
SC 59G Small kitchen appliances Transformed Transformed into SC 59L
SC 59H Microwave ovens Disbanded Transformed into SC 59K
SC 59I Hand-held electric tools Disbanded Work taken over by TC 59
SC 59J TC 59/SC 59J Obsolete
TC 60 Recording Transformed Transformed into TC 100/TA 6 and TA 7
SC 60A Sound recording Transformed Transformed into TC 100/TA 6 and TA 7
SC 60B Video recording Transformed Transformed into TC 100/TA 6 and TA 7
SC 60C Systems of audio-visual and electronic technology for information and communications Disbanded
SC 61E Safety of electrical commercial catering equipment Disbanded Taken over by TC61
SC 61F Safety of hand-held motor-operated electric tools Transformed Transformed into TC 116
SC 61G Safety of projectors Disbanded Work taken over by TC 61
TC 63 Insulation systems Disbanded
SC 65D Analyzing equipment Disbanded Work taken over by SC 65B
SC 66D TC 66/SC 66D Obsolete
SC 66E TC 66/SC 66E Obsolete
TC 67 Analogue computing equipment Disbanded
TC 71 Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries) Disbanded Work taken over by TC 44
TC 74 Safety and energy efficiency of IT equipment Transformed Transformed into TC 108
TC 75 Classification of environmental conditions Transformed Transformed into TC 104
TC 83 Information technology equipment Disbanded Work taken over by JTC 1/SC 25
TC 84 Equipment and systems in the field of audio, video and audiovisual engineering Transformed Transformed into TC 100/TA 3 and TA 4
SC 90F TC 90/SC 90F Obsolete
TC 92 Safety of audio, video and similar electronic equipment Transformed Transformed into TC 108
TC 93 Design automation Disbanded Work taken over by TC 91
TC 98 Electrical insulation systems (EIS) Transformed Transformed to TC 112 in 2005-05 (see SMB/3019/QP and SMB/3019A/RV).
TA 3 Infrared systems and applications Disbanded Disbanded (by e-mail dated 2004-04-19).
TA 7 Consumer electronics storage and related applications Disbanded Work taken over by TC 100/TA 6
TA 8 Multimedia home systems and applications for end-user network Disbanded
TA 9 Audio, video and multimedia applications for end-user network Disbanded
TA 11 Quality for audio, video and multimedia systems Disbanded Work taken over by TC 100/TA 18
TA 12 AV energy efficiency and smart grid applications Disbanded Work taken over by TC 100/TA 19
TA 13 Environment for AV and multimedia equipment (tentative title Disbanded
TA 14 Interfaces and methods of measurement for personal computing equipment Disbanded Work taken over by TC 100/TA 20
SC 100A Multimedia end-user equipment Disbanded
SC 100B Audio, video and multimedia information storage systems Disbanded
SC 100C Audio, video and multimedia subsystems and equipment Disbanded
SC 100D Cabled distribution systems Disbanded
TC 102 Equipment used in radiocommunications for mobile services and for satellite communication systems Disbanded
CIS/C Interference relating to overhead power lines, high-voltage equipment and electric traction systems Disbanded Work taken over by SC CIS/B
CIS/E Interference relating to radio receivers Transformed Transformed into SC CIS/I
CIS/G Interference relating to information technology equipment Transformed Transformed into SC CIS/I
CIS/R CISPR/CIS/R Obsolete
ISO/IEC JPC 2 Energy efficiency and renewable energy sources - Common international terminology Disbanded
ISO/IEC JTC 1/SC 1 Vocabulary Disbanded
ISO/IEC JTC 1/SC 11 Disbanded
ISO/IEC JTC 1/SC 14 Data element principles Disbanded
ISO/IEC JTC 1/SC 15 Volume and file structure Disbanded
ISO/IEC JTC 1/SC 18 Document processing and related communication Disbanded
ISO/IEC JTC 1/SC 21 Open systems interconnection, data management and open distributed processing Disbanded
ISO/IEC JTC 1/SC 26 Microprocessor systems Disbanded
ISO/IEC JTC 1/SC 30 Open electronic data interchange Disbanded
ISO/IEC JTC 1/SC 33 Distributed application services Disbanded