• Hydrogen Technologies Standards form the basic framework for market ramp-up

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  • Climate change Standards and specifications support climate targets

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  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

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Projects of IEC/SC 77A

IEC 61J/219/DC 1998-04-17 Proposal from the German National Committee to IEC SC 77A for an addition to IEC 61000-3-2, Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current = 16 A per phase) More  Comment 
IEC 77A/226/NP 1997-12-05 Proposal of the Swiss NC: Electromagnetic Compability (EMC) - Part 3: Limits - Section 1: Overview of Emission Standards and Guides - Technical Report More  Comment 
IEC 77A/225/NP 1997-11-28 Proposal of the Belgian NC: Standard to be developed 'Limits for harmonics produced by equipment connected to public low-voltage systems with input current above 16A' More  Comment 
IEC 77A/187/NP 1997-05-16 Proposal of the German NC: Amendment to Sub-clause 4.6: Weighting filter of future 1st edition of IEC 61000-4-15 More  Comment 
IEC 77A/266/CD 1997-01-31 Electromagnetic Compatibility (EMC) - Part 2-12: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems - Technical Specification More  Comment 
IEC 77A/169/CDV 1996-11-22 Electromagnetic Compatibility (CEM) - Part 3: Limits - Section 4: Limitation of emissionsof harmonics currents in low voltage power supply systems for equipment with rated current greater than 16A More  Comment 
IEC 77A/261/CDV 1996-09-27 Amendment related to professional IT equipment to IEC 61000-3-2: 1995 (version 1.0) More  Comment 
IEC 77A/186/FDIS 1996-06-14 Amendment to IEC 61000-3-2: Definition of professional equipment More  Comment 
IEC 77A/127/NP 1995-05-12 Elektromagnetische Verträglichkeit (EMV) - Teil 3-11: Grenzwerte - Begrenzung von Spannungsänderungen, Spannungsschwankungen und Flicker in öffentlichen Niederspannungs-Versorgungsnetzen - Geräte und Einrichtungen mit einem Bemessungstrom ≤ 75 A, die einer Sonderzulassung unterliegen (IEC 61000-3-11:2000) More  Comment 
IEC 77A/126/CD 1995-04-14 Electromagnetic Compatibility (CEM) - Part 3: Limits - Section 4: Limitation of emissionsof harmonics currents in low voltage power supply systems for equipment with rated current greater than 16A More  Comment 

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