50.60 Jul 23, 2021
IEC
TC 121/SC 121B
Technical Report
Revises
IEC TR 60890:2014 ED2
IN_DEVELOPMENT
IEC TR 60890 ED3
50.60
Close of voting. Proof returned by secretariat
Jul 23, 2021
A method of temperature-rise verification of low-voltages switchgear and controlgear assemblies by calculation
60.60 Standard published
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