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All Active Abolish Replaced Incoming Convert to industry standard
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GB/T 4074.21-2018 《Winding wires test methods—Part 21: Electrical endurance under high frequency voltage impulses》 Related products

This standard specifies the high-frequency pulse voltage resistance test method for the performance of winding wires in atmospheric air using high-frequency pulse voltages, also known as corona resistance test methods. The standard includes test terms, definitions, test equipment, sample preparation, test procedures, test parameters and test records. Applicable winding wires include corona-resistant enameled round winding wires, grade 240 aromatic corona-resistant polyimide film wrapped sintered round, flat winding wires, Glass wire wrapped film wrapped flat winding wires and mica tape wrapped flat winding wires.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
Status Abolish
CCS K12
ICS 29.060.10
Release Date 2018-03-15 00:00:00
Implementation Date 2018-10-01 00:00:00
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