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Codes & Standards - Purchase
IEC 60050-444:2002
International Electrotechnical Vocabulary (IEV) - Part 444: Elementary relays
- Bilingual
- Published in 2002
- Published by IEC
Codes & Standards - Purchase
IEC 60050-445:2010
International Electrotechnical Vocabulary (IEV) - Part 445: Time relays
- Bilingual
- Published in 2010
- Published by IEC
Codes & Standards - Purchase
IEC 60050-447:2020
International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays and protection equipment
- Bilingual
- Published in 2020
- Published by IEC
Codes & Standards - Purchase
IEC 60255-121:2014
Measuring relays and protection equipment - Part 121: Functional requirements for distance protection
- Bilingual
- Published in 2014
- Published by IEC
Codes & Standards - Purchase
IEC 60255-127:2010
Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection
- Bilingual
- Published in 2010
- Published by IEC
Codes & Standards - Purchase
IEC 60255-12:1980
Electrical relays - Part 12: Directional relays and power relays with two input energizing quantities
- Bilingual
- Published in 1980
- Published by IEC
Codes & Standards - Purchase
IEC 60255-13:1980
Electrical relays - Part 13: Biased (percentage) differential relays
- Bilingual
- Published in 1980
- Published by IEC
Codes & Standards - Purchase
IEC 60255-149:2013
Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
- Bilingual
- Published in 2013
- Published by IEC
Codes & Standards - Purchase
IEC 60255-151:2009
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
- Bilingual
- Published in 2009
- Published by IEC
Codes & Standards - Purchase
IEC 60255-181:2019
Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
- Bilingual
- Published in 2019
- Published by IEC
Codes & Standards - Purchase
IEC 60255-187-1:2021/COR1:2023
Corrigendum 1 - Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
- Bilingual
- Published in 2023
- Published by IEC
Codes & Standards - Purchase
IEC 60255-1:2022
Measuring relays and protection equipment - Part 1: Common requirements
- Bilingual
- Published in 2022
- Published by IEC
Codes & Standards - Purchase
IEC 60255-21-1:1988
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)
- Bilingual
- Published in 1988
- Published by IEC
Codes & Standards - Purchase
IEC 60255-21-2:1988
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
- Bilingual
- Published in 1988
- Published by IEC
Codes & Standards - Purchase
IEC 60255-21-3:1993
Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests
- Bilingual
- Published in 1993
- Published by IEC
Codes & Standards - Purchase
IEC 60255-24:2013
Measuring relays and protection equipment - Part 24: Common format for transient data exchange (COMTRADE) for power systems
- Bilingual
- Published in 2013
- Published by IEC
Codes & Standards - Purchase
IEC 60255-26:2023
Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
- Bilingual
- Published in 2023
- Published by IEC
Codes & Standards - Purchase
IEC 60255-27:2023
Measuring relays and protection equipment - Part 27: Product safety requirements
- Bilingual
- Published in 2023
- Published by IEC
Codes & Standards - Purchase
IEC 60255-27:2023 CMV
Measuring relays and protection equipment - Part 27: Product safety requirements
- English
- Published in 2023
- Published by IEC
Codes & Standards - Purchase
IEC 61810-10:2019
Electromechanical elementary relays - Part 10: Additional functional aspects and safety requirements for high-capacity relays
- Bilingual
- Published in 2019
- Published by IEC