Tracking and erosion test on insulators and shed material was made under service condition.

结合运行实际，对复合绝缘子及伞套材料的耐漏电起痕和耐电蚀损性进行了试验。

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Tracking and erosion test on insulators and shed material was made under service condition.

结合运行实际，对复合绝缘子及伞套材料的耐漏电起痕和耐电蚀损性进行了试验。

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