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IEC
IEC 60152:2021
En Vigor
2021-07-09
Designation of phase differences by hour numbers in three-phase AC systems
IEC
IEC 61828:2020
En Vigor
2020-12-15
Ultrasonics - Transducers - Definitions and measurement methods
regarding focusing for the transmitted fields
ISO
ISO/IEC 18012-4:2025
En Vigor
2025-07-18
Information technology — Home electronic system (HES) — Guidelines for
product interoperability — Part 4: Event encoding
IEC
IEC 62852:2014/AMD1:2020
En Vigor
2020-03-25
Amendment 1 - Connectors for DC-application in photovoltaic systems -
Safety requirements and tests
