Category: IEC

International Electrotechnical Vocabulary (IEV) – Part 141: Polyphase systems and circuits
standard by International Electrotechnical Commission, 08/09/2004

OPC Unified Architecture – Part 10: Programs
standard by International Electrotechnical Commission, 07/07/2020

International Electrotechnical Vocabulary. Chapter 321: Instrument transformers
standard by International Electrotechnical Commission, 06/30/1986

International Electrotechnical Vocabulary (IEV) – Part 485: Fuel cell technologies
standard by International Electrotechnical Commission, 02/29/2020

Amendment 1 – Surge arresters – Part 4: Metal-oxide surge arresters without gaps for a.c. systems
Amendment by International Electrotechnical Commission, 05/11/2006

Power transformers – Part 10: Determination of sound levels
standard by International Electrotechnical Commission, 03/24/2016

Safety of machinery – Electrical equipment of machines – Part 31: Particular safety and EMC requirements for sewing machines, units and systems
standard by International Electrotechnical Commission, 04/23/2013

Amendment 20 – Mechanical standardization of semiconductor devices – Part 2: Dimensions
Amendment by International Electrotechnical Commission, 04/12/2018

Power transformers – Part 21: Standard requirements, terminology, and test code for step-voltage regulators
standard by International Electrotechnical Commission, 12/07/2018

Power transformers – Part 21: Standard requirements, terminology, and test code for step-voltage regulators
standard by International Electrotechnical Commission, 12/15/2011

International Electrotechnical Vocabulary (IEV) – Part 801: Acoustics and electroacoustics
standard by International Electrotechnical Commission, 08/17/1994

Amendment 2 – Radio-frequency cables. Part 1: General requirements and measuring methods
Amendment by International Electrotechnical Commission, 06/25/1993