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运行中曾多次有过这样的事故,线路套管间空气绝缘距离发生闪络,以及110仟伏至变压器套压管和不接地的中性点间的闪络。这些情形均发生在110仟伏一路进线的变电站中,变电站的防雷保护方式均符合“导则”的要求。
During the operation, there have been many accidents such as flashover between the air insulation distances between line casings and 110 仟V to the flashover between transformer sleeves and ungrounded neutral points. These conditions all occurred in substations that entered the line at 110 仟V. The lightning protection methods of the substations all met the requirements of the Guidelines.