GB/T 4074.21-2018: Winding wires test methods - Part 21: Electrical endurance under high frequency voltage impulses

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Scope

This part of GB/T 4074 stipulates the test method (also known as corona
resistance test method) for using high-frequency pulse voltage to determine the
resistance of the winding wire to high-frequency pulse voltage in atmospheric
air, including the terms and definitions of the test, test equipment, specimen
preparation, test procedures, test parameters and test records.
This part applies to the following winding wires.
- Corona-resistant enameled round winding wire;
- Grade-240 aromatic corona-resistant polyimide film wrapped sintered
round and flat winding wire;
- Glass fiber wrapped film winding flat winding wire;
- Mica tape wrapped flat winding wire.

Basic Data

Standard ID	GB/T 4074.21-2018 (GB/T4074.21-2018)
Description (Translated English)	Winding wires test methods - Part 21: Electrical endurance under high frequency voltage impulses
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K12
Classification of International Standard	29.060.10
Word Count Estimation	14,160
Date of Issue	2018-03-15
Date of Implementation	2018-10-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration