绝缘子的真空表面绝缘特性研究真空下的高压沿绝缘子表面击穿物理过程，称真空表面闪络过程。

The insulation characteristic of insulator in vacuum is researched in the process of the high voltage breakdown along the insulator surface in vacuum, which is called vacuum surface flashover.

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结果表明，棒形悬式瓷绝缘子重量轻，抗老化性能好，耐污性能较好，拉伸强度高，不可击穿，使用维护简便。

The results show that the long rod insulator features light weight, better anti-ageing performance, better anti-pollution behaviour, high tensile strength, puncture-proof and easy maintenance.

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