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IEC
IEC 62271-108:2020
En Vigor
2020-07-09
High-voltage switchgear and controlgear - Part 108: High-voltage
alternating current disconnecting circuit-breakers for rated voltages
above 52 kV
IEC
IEC
IEC 60061-1:1969/AMD58:2018
En Vigor
2018-08-23
Amendment 58 - Lamp caps and holders together with gauges for the
control of interchangeability and safety - Part 1: Lamps caps
IEC
IEC 60539-1:2022
En Vigor
2022-12-15
Directly heated negative temperature coefficient thermistors - Part 1:
Generic specification
