GB/T 4074.21-2018

Active

Winding wires test methods—Part 21: Electrical endurance under high frequency voltage impulses

绕组线试验方法 第21部分：耐高频脉冲电压性能

Standard Type
GBT
ICS
29.060.10
CCS
K12
Status
Active
Issue Date
2018-03-15
Implementation
2018-10-01
Centralized Committee
中国电器工业协会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies a test method for evaluating the electrical endurance of winding wires when subjected to repetitive high-frequency voltage impulses. It is applied in the manufacturing and quality control of magnet wires used in inverter-fed motors, transformers, and other electrical equipment where insulation must withstand rapid voltage switching. The test simulates real-world stress from variable-frequency drives to ensure wire reliability in applications like electric vehicles and industrial drives.

Related Standards

GB/T 19666-2005 Flame retardant and fire resistant wires and cables General GB/T 6108.3-2003 Basic dimensions of winding wires--Part 3: Dimensions of conductors of insulated rectangular copper winding wires GB/T 19216.21-2003 Tests for electric cables under fire conditions--Circuit integrity--Part 21: Procedures and requirements--Cables of rated voltage up to and including 0.6/1.0kV GB/T 19216.11-2003 Tests for electric cables under fire conditions--Circuit integrity--Part 11: Apparatus--Fire alone at a flame temperature of at least 750℃ GB/T 6108.2-2003 Basic dimensions of winding wires--Part 2: Maximum overall diameters of enamelled round winding wires GB/T 18889-2002 Electric cables-test methods for accessories for power cables with rated voltages from 6kV(Um=7.2kV)up to 35kV(Um=40.5kV) GB/T 18487.3-2001 Electric vehicle conductive charging system--A.C./D.C.electric vehicle charging station GB/T 18487.2-2001 Electric vehicle conductive charging system--Electric vehicles requirements for conductiveconnection to an A.C./D.C.supply
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.