某高压设备的尖极电极在 18kV 电压(低于击穿电压)下,出现局部发光和轻微声响,该现象为( )。(0.5)
发布时间:2025-11-26
A.辉光放电
B.电晕放电
C.非自持放电
D.火花放电
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