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  1. Millie Chen

    IEC 62040-1 Ed.2 vs IEC 62040-1 Ed.1

    Hi buddies, I found 2nd edition of IEC 62040-1 was published instead of 1st edition. Do you have any idea about the major changes? For 2nd edition: the reference document has been changed from IEC 60950-1:2005 (safety for IT equipment) to IEC 62477-1 (group safety standard for power electronic...
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