https://www.electropedia.org/ www.iec.ch International Electrotechnical Commission [ecblank] _ _ _ _ [0] Queries, comments, suggestions? Please contact us. Help us to improve Electropedia: please take a few minutes to answer the on line survey Electropedia: The World's Online Electrotechnical Vocabulary _ Query: [ ] Language: [English ] Subject area: [All] _ [ Search ] [ Clear ] _ [ ]Search also in definitions Numbers correspond to table below Electropedia is produced by the IEC, the world's leading organization that prepares and publishes International Standards for all electrical, electronic and related technologies - collectively known as "electrotechnology". Electropedia (also known as the "IEV Online") contains all the terms and definitions in the International Electrotechnical Vocabulary or IEV which is published also as a set of publications in the IEC 60050 series that can be ordered separately from the IEC webstore. Electropedia is the world's most comprehensive online terminology database on "electrotechnology", containing more than 22 000 terminological entries in English and French organized by subject area, with equivalent terms in various other languages: Arabic, Chinese, Czech, Dutch (Belgian), Finnish, German, Italian, Japanese, Korean, Mongolian, Norwegian (Bokmal and Nynorsk), Polish, Portuguese, Russian, Serbian, Slovenian, Spanish and Swedish (coverage varies by subject area). The world's experts in electrotechnical terminology work to produce Electropedia under the responsibility of IEC Technical Committee 1 (Terminology), one of the 204 IEC Technical Committees and Subcommittees. Subject areas - Click on title for list of terms 102 Mathematics - General concepts and linear algebra _ 601 Generation, transmission and distribution of electricity - General 103 Mathematics - Functions 602 Generation, transmission and distribution of 112 Quantities and units electricity - Generation 113 Physics for electrotechnology 603 Generation, transmission and distribution of electricity - Power systems planning and management 114 Electrochemistry 605 Generation, transmission and distribution of 121 Electromagnetism electricity - Substations 131 Circuit theory 614 Generation, transmission and distribution of electricity - Operation 141 Polyphase systems and circuits 617 Organization/Market of electricity 151 Electrical and magnetic devices 651 Live working 161 Electromagnetic compatibility 691 Tariffs for electricity 171 Digital technology - Fundamental concepts 692 Generation, transmission and distribution of 192 Dependabilty electrical energy - Dependability and quality of service of electric power systems 195 Earthing and protection against electric shock 701 Telecommunications, channels and networks 212 Electrical insulating solids, liquids and gases 702 Oscillations, signals and related devices 221 Magnetic materials and components 704 Transmission 311 Electrical and electronic measurements - General terms relating to measurements 705 Radio wave propagation 312 Electrical and electronic measurements - General terms 712 Antennas relating to electrical measurements 713 Radiocommunications: transmitters, receivers, networks 313 Electrical and electronic measurements - Types of and operation electrical measuring instruments 714 Switching and signalling in telecommunications 314 Electrical and electronic measurements - Specific terms according to the type of instrument 715 Telecommunication networks, teletraffic and operation 321 Instrument transformers 716 Integrated services digital network (ISDN) - Part 1: General aspects 351 Control technology 721 Telegraphy, facsimile and data communication 371 Telecontrol 722 Telephony 395 Nuclear instrumentation: Physical phenomena, basic concepts, instruments, systems, equipment and 723 Broadcasting: Sound, television, data detectors 725 Space radiocommunications 411 Rotating machinery 726 Transmission lines and waveguides 415 Wind turbine generator systems 731 Optical fibre communication 417 Marine energy - Wave, tidal and other water current converters 732 Computer network technology 421 Power transformers and reactors 741 Internet of Things (IoT) 426 Equipment for explosive atmospheres 801 Acoustics and electroacoustics 431 Transductors 802 Ultrasonics 436 Power capacitors 806 Recording and reproduction of audio and video 441 Switchgear, controlgear and fuses 807 Digital recording of audio and video signals 442 Electrical accessories 808 Video cameras for non-broadcasting 444 Elementary relays 811 Electric traction 445 Time relays 815 Superconductivity 447 Measuring relays 821 Signalling and security apparatus for railways 448 Power system protection 826 Electrical installations 461 Electric cables 841 Industrial electroheat 466 Overhead lines 845 Lighting 471 Insulators 851 Electric welding 482 Primary and secondary cells and batteries 871 Active assisted living (AAL) 485 Fuel cell technologies 881 Radiology and radiological physics 511 Nano-enabled electrotechnical products and systems 891 Electrobiology 521 Semiconductor devices and integrated circuits 901 Standardization 523 Micro-electromechanical systems (MEMS) 902 Conformity assessment 531 Electronic tubes 903 Risk assessment 541 Printed circuits 904 Environmental standardization for electrical and electronic products and systems 551 Power electronics 561 Piezoelectric devices for frequency control and selection 581 Electromechanical components for electronic equipment _ _ Please help us improve Electropedia! 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