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STN - Slovak standards
Page 2695
STN EN IEC 63522-52 (01/07/2026)
Electrical relays - Tests and measurements - Part 52: Coil overvoltage
Available languages: English
Available design: Print design
STN EN IEC 63522-54 (01/01/2026)
Electrical relays - Tests and measurements - Part 54: Critical DC load current test
Available languages: English
Available design: Print design
STN EN IEC 63522-56 (01/09/2025)
Electrical relays - Tests and measurements - Part 56: Ball Pressure test
Available languages: English
Available design: Print design
STN EN 60255-121 (01/02/2015)
Meracie relé a ochranné zariadenia. Časť 121: Funkčné požiadavky na dištančnú ochranu (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN EN 60255-127 (01/07/2014)
Meracie relé a ochranné zariadenie. Časť 127: Funkčné požiadavky na prepäťovú/podpäťovú ochranu (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN EN 60255-149 (01/04/2014)
Meracie relé a ochranné zariadenia. Časť 149: Funkčné požiadavky na tepelné elektrické relé (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN EN 60255-151 (01/06/2010)
Meracie relé a ochranné zariadenia. Časť 151: Funkčné požiadavky na nadprúdovú/podprúdovú ochranu (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN EN IEC 60255-181 (01/10/2019)
Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
Available languages: English
Available design: Print design
STN EN IEC 60255-187-1 (01/12/2021)
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Available languages: English
Available design: Print design
STN EN IEC 60255-187-1:2021/OpravaAC (01/07/2023) Correction
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Available languages: English
Available design: Print design
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