29.120.70: Relays

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  1. MOST RECENT

    2093752

    IEC 61810-1 Amd.1 Ed. 4.0 b:2019

    Amendment 1 - Electromechanical elementary relays - Part 1: General and safety requirements

    Amendment by International Electrotechnical Commission, 11/25/2019.

    Languages: English, French

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  2. MOST RECENT

    2564657

    IEC 60255-187-1 Ed. 1.0 b Cor.1:2023

    Corrigendum 1 to Measuring relays and protection equipment – Part 187-1: Functional requirements for differential protection – Restrained and unrestrained differential protection of motors, generators and transformers

    Amendment by International Electrotechnical Commission, 04/01/2023.

    Languages: English, French

  3. HISTORICAL

    747653

    IEC 60255-11 Ed. 1.0 b:1979 [ Withdrawn ]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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  4. MOST RECENT

    747654

    IEC 60255-12 Ed. 1.0 b:1980

    Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities

    standard by International Electrotechnical Commission, 01/01/1980.

    Languages: English, French

    • 👥MULTI-USER
  5. MOST RECENT

    747655

    IEC 60255-13 Ed. 1.0 b:1980

    Electrical relays - Part 13: Biased (percentage) differential relays

    standard by International Electrotechnical Commission, 01/01/1980.

    Languages: English, French

    • 👥MULTI-USER
  6. MOST RECENT

    747656

    IEC 60255-16 Ed. 1.0 b:1982 [ Withdrawn ]

    Electrical relays - Part 16: Impedance measuring relays

    standard by International Electrotechnical Commission, 01/01/1982.

    Languages: English, French

    • 👥MULTI-USER
  7. MOST RECENT

    747256

    IEC 60255-21-3 Ed. 1.0 b:1993

    Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests

    standard by International Electrotechnical Commission, 09/21/1993.

    Languages: English, French

    • 👥MULTI-USER
  8. MOST RECENT

    22419

    IEC 60255-21-1 Ed. 1.0 b:1988

    Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)

    standard by International Electrotechnical Commission, 09/30/1988.

    Languages: English, French

    • 👥MULTI-USER
  9. MOST RECENT

    747255

    IEC 60255-21-2 Ed. 1.0 b:1988

    Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests

    standard by International Electrotechnical Commission, 10/31/1988.

    Languages: English, French

    • 👥MULTI-USER
  10. HISTORICAL

    1212853

    IEC 60255-22-1 Ed. 2.0 b:2005 [ Withdrawn ]

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

    Electrical relays - Part 22-1: Electrical disturbance tests for measuring relays and protection equipment - 1 MHz burst immunity tests

    standard by International Electrotechnical Commission, 03/17/2005.

    Languages: English, French

    Historical Editions: IEC 60255-22-1 Ed. 3.0 b:2007

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