GB/T 21222-2007
ActiveMethods for the determination of the lightning impulse breakdown voltage of insulating liquids
绝缘液体 雷电冲击击穿电压测定方法
Application Summary AI generated
This standard specifies the test method for determining the breakdown voltage of insulating liquids under lightning impulse voltage conditions, simulating the stress experienced by liquid dielectrics during lightning strikes or switching surges. It is applied in the electrical power industry for quality control and performance evaluation of transformer oils, capacitor impregnants, and other insulating fluids used in high-voltage equipment. The method ensures that insulating liquids meet safety and reliability requirements for use in power transformers, switchgear, and other electrical apparatus.
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