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41

IEC 60050-521:2002/AMD1:2017

Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 521: Semiconductor devices and integrated circuits

42

IEC 60050-531:1974/AMD1:2017

Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 531: Electronic tubes

43

IEC 60050-551-20:2001/AMD1:2017

Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 551-20: Power electronics - Harmonic analysis

44

IEC 60050-617:2009/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 617: Organization/Market of electricity

45

IEC 60050-692:2017

International Electrotechnical Vocabulary (IEV) - Part 692: Generation, transmission and distribution of electrical energy - Dependability and quality of service of electric power systems

46

IEC 60050-702:1992/AMD3:2017

Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 702: Oscillations, signals and related devices

47

IEC 60050-704:1993/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 704: Transmission

48

IEC 60050-705:1995/AMD3:2017

Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 705: Radio wave propagation

49

IEC 60050-713:1998/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 713: Radiocommunications: transmitters, receivers, networks and operation

50

IEC 60050-714:1992/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 714: Switching and signalling in telecommunications

51

IEC 60050-721:1991/AMD2:2017

Amendement 2 - International Electrotechnical Vocabulary (IEV) - Part 721: Telegraphy, facsimile and data communication

52

IEC 60050-722:1992/AMD1:2017

Amendment 1 - International Electrotechnical Vocabulary (IEV) - Part 722: Telephony

53

IEC 60050-723:1997/AMD3:2017

Amendment 3 - International Electrotechnical Vocabulary (IEV) - Part 723: Broadcasting: Sound, television, data

54

IEC 60050-726:1982/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 726: Transmission lines and waveguides

55

IEC 60050-731:1991/AMD2:2017

Amendment 2 - International Electrotechnical Vocabulary (IEV) - Part 731: Optical fibre communication

56

IEC 60050-811:2017

International Electrotechnical Vocabulary (IEV) - Part 811: Electric traction

57

IEC 60050-821:2017

International Electrotechnical Vocabulary (IEV) - Part 821: Signalling and security apparatus for railways

58

IEC 60051-5:2017

Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5: Special requirements for phase meters, power factor meters and synchroscopes

59

IEC 60051-6:2017

Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters

60

IEC 60051-7:2017

Direct acting indicating analogue electrical measuring instruments and their accessories - Part 7: Special requirements for multi-function instruments

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