power frequency impulse voltage
College of Engineering Board of Advisor 工程学院顾问委员会 power frequency impulse voltage 工频冲击电压 company’s occupant protection operine 公司乘客保护业务部 ..
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该式能把工频电压和雷电冲击电压下空气隙的放电曲线箍在特定的范围内。
The discharging curves for power frequency voltage and lightning impulse voltage are measured and its fluctuation range caused by variation of air condition is found.
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