IEC 60794-1-21 Ed. 1.1 b:2020

Optical fibre cables – Part 1-21: Generic specification – Basic optical cable test procedures – Mechanical tests methods CONSOLIDATED EDITION
standard by International Electrotechnical Commission, 03/05/2020

IEC 61952-1 Ed. 1.0 b:2019

Insulators for overhead lines – Composite line post insulators for AC systems with a nominal voltage greater than 1 000 V – Part 1: definitions, end fittings and designations
standard by International Electrotechnical Commission, 04/04/2019

IEC 60027-7 Ed. 1.0 b:2010

Letter symbols to be used in electrical technology – Part 7: Power generation, transmission and distribution
standard by International Electrotechnical Commission, 05/11/2010

IEC 60050-221 Ed. 1.0 b:1990

International Electrotechnical Vocabulary. Chapter 221: Magnetic materials and components
standard by International Electrotechnical Commission, 10/15/1990

IEC 62852 Ed. 1.1 b:2020

Connectors for DC-application in photovoltaic systems – Safety requirements and tests
standard by International Electrotechnical Commission, 03/25/2020