29.120.70: Relays

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  1. MOST RECENT

    IEC 60050-444 Ed. 1.0 b:2002▹

    International Electrotechnical Vocabulary (IEV) - Part 444: Elementary relays

    standard by International Electrotechnical Commission, 01/21/2002.

    Languages: English, French

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  2. HISTORICAL

    IEC 60050-445 Ed. 1.0 b:2002▹ [ Withdrawn ]

    This document has been replaced. View the most recent version.

    International Electrotechnical Vocabulary - Part 445: Specified time all-or-nothing relays

    standard by International Electrotechnical Commission, 01/24/2002.

    Languages: English, French

    Historical Editions: IEC 60050-445 Ed. 2.0 b:2010

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  3. MOST RECENT

    IEC 60050-445 Ed. 2.0 b:2010▹

    International Electrotechnical Vocabulary (IEV) - Part 445: Time relays

    standard by International Electrotechnical Commission, 10/13/2010.

    Languages: English, French

    Historical Editions: IEC 60050-445 Ed. 1.0 b:2002

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  4. MOST RECENT

    IEC 60050-446 Ed. 1.0 t:1983▹ [ Withdrawn ]

    International Electrotechnical Vocabulary. Electrical relays

    standard by International Electrotechnical Commission, 01/01/1983.

    Languages: English, French

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  5. HISTORICAL

    IEC 60050-447 Ed. 1.0 b:2010▹ [ Withdrawn ]

    This document has been replaced. View the most recent version.

    International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays

    standard by International Electrotechnical Commission, 06/29/2010.

    Languages: English, French

    Historical Editions: IEC 60050-447 Ed. 2.0 b:2020

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  6. MOST RECENT

    IEC 60050-447 Ed. 2.0 b:2020▹

    International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays

    standard by International Electrotechnical Commission, 05/26/2020.

    Languages: English, French

    Historical Editions: IEC 60050-447 Ed. 1.0 b:2010

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  7. HISTORICAL

    IEC 60255-11 Ed. 1.0 b:1979▹ [ Withdrawn ]

    This document has been replaced. View the most recent version.

    Electrical relays - Part 11: Interruptions to and alternating component (ripple) in d.c. auxiliary energizing quantity of measuring relays

    standard by International Electrotechnical Commission, 01/01/1979.

    Languages: English, French

    Historical Editions: IEC 60255-11 Ed. 2.0 b:2008

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  8. MOST RECENT

    IEC 60255-11 Ed. 2.0 b:2008▹ [ Withdrawn ]

    Measuring relays and protection equipment - Part 11: Voltage dips, short interruptions, variations and ripple on auxiliary power supply port

    standard by International Electrotechnical Commission, 10/08/2008.

    Languages: English, French

    Historical Editions: IEC 60255-11 Ed. 1.0 b:1979

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  9. MOST RECENT

    IEC 60255-121 Ed. 1.0 b:2014▹

    Measuring relays and protection equipment - Part 121: Functional requirements for distance protection

    standard by International Electrotechnical Commission, 03/07/2014.

    Languages: English, French

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  10. MOST RECENT

    IEC 60255-127 Ed. 1.0 b:2010▹

    Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection

    standard by International Electrotechnical Commission, 04/27/2010.

    Languages: English, French

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