a) table 3 has been updated, specifying how to handle the Neutral by 3-phase filter with Neutral;
b) all details about "Quality assessment" have been deleted in this edition, because this standard is a safety standard;
c) filters shall be subjected to Test Aa of IEC 60068-2-1 for 16 h, using the degree of severity of the lower category temperature as prescribed in the relevant specification;
d) since IEC 60068-2-20 does no longer make a difference between Method 1A and 1B, but only describes Method 1, references to the method to be used are updated.">
Passive filter units for electromagnetic interference suppression - Part 1: Generic specification
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