Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 501: Optical fibre proof test
Edition 2006-06-01

Aerospace series - Circuit breakers - Test methods - Part 501: Actuator button travel
Edition 2005-06-01

Aerospace series - Electrical cables, installation - Protection sleeves - Test methods - Part 501: Voltage proof test
Edition 2010-12-01

Energy management system application program interface (EMS-API) - Part 501: Common Information Model Resource Description Framework (CIM RDF) schema (IEC 61970-501:2006)
Edition 2007-01-01

Field device tool interface specification - Part 501: Communication implementation for common object model - IEC 61784 CPF 1 (IEC 65E/65/CDV)
Edition 2008-05-01

Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations - Section 501: TASE.1 Service definitions
Edition 1997-01-08

Wind energy generation systems - Part 50-1: Wind measurement - Application of meteorological mast, nacelle and spinner mounted instruments ((IEC 61400-50-1:2022) EN IEC 61400-50-1:2022) (german version)
Edition 2024-04-01

Electric and optical fibre cables - Test methods for non-metallic materials - Part 501: Mechanical tests - Tests for determining the mechanical properties of insulating and sheathing compounds (IEC 60811-501:2012 + A1:2018) (german version)
Edition 2019-05-01

Electric and optical fibre cables - Test methods for non-metallic materials - Part 501: Mechanical tests - Tests for determining the mechanical properties of insulating and sheathing compounds (IEC 20/2082/CDV) (Amendment) (english version)
Edition 2023-03-01