IEC 60191-2T:1996

Electrical relays - Tests and measurements - Part 45: Maximum frequency of operation

Overview IEC 63522-45:2025 is an International Standard developed by the International Electrotechnical Commission (IEC) specifically for electromechanical elementary relays. This includes electromec…

Interpretation sheet 1 - Tests on electric and optical fibre cables under fire conditions - Part 3-24: Test f…

Interpretation sheet 1 - Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC) re…

Twenty-first supplement

Overview IEC 60191-2W:1999 represents the twenty-first supplement to the IEC 60191-2 (1966) standard focused on the mechanical standardization of semiconductor devices. Published by the International…

Subsea equipment - Part 2: Power transformers

Overview IEC/IEEE 61886-2:2025 - Subsea equipment, Part 2: Power transformers is a dual-logo IEC/IEEE standard that defines additional requirements for liquid‑immersed subsea power transformers (incl…

Twenty-fourth supplement - Mechanical standardization of semiconductor devices - Part 2: Dimensions

Overview IEC 60191-2Z:2000 is the twenty-fourth supplement to IEC 60191-2 (1966), focusing on the mechanical standardization of semiconductor devices, specifically addressing dimensions. Published by…

Interpretation sheet 2 - Safety of laser products - Part 2: Safety of optical fibre communication systems (OF…

Qi Specification version 2.0 - Part 3: Mechanical, Thermal, and User Interface

Overview IEC 63563-3:2025 - Qi Specification version 2.0, Part 3: Mechanical, Thermal, and User Interface defines the basic physical, thermal and user-interface requirements and guidance for wireless…