ASTM D3426用脉冲波法测定固体电绝缘材料电介质击穿电压及抗电强度标准试验方法
日期:2012-02-10 17:33
stribution systems. The ability of insulating materials to withstand these transient voltages is important in establishing the reliability of apparatus insulated with these materials.
Transient voltages caused by lightning may be of either positive or negative polarity. In a symmetrical field between identical electrodes, the polarity has no effect on the breakdown strength. However, with dissimilar electrodes there may be a pronounced polarity effect. It is common practice when using dissimilar
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