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Normas IEC

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IEC

IEC TR 61788-20:2014

En Vigor
2014-07-28
Superconductivity - Part 20: Superconducting wires - Categories of practical superconducting wires - General characteristics and guidance
IEC

IEC 61834-1:1998/AMD1:2001

En Vigor
2001-03-15
Amendment 1 - Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 1: General specifications
IEC

IEC 60691:2023/AMD1:2024

En Vigor
2024-10-28
Amendment 1 - Thermal-links - Requirements and application guide
IEC

IEC 61558-2-8:2024 EXV-RLV

En Vigor
2024-06-07
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular requirements and tests for transformers and power supply units for bells and chimes