This article introduces the process of power plant 500kV GIS tub of insulator surface flashover which can cause CIS conductor discharges to hull fault analysis and process of disposer. The results can provide references for preventing the similar accidents and handling.%介绍了某电厂500kV GIS盆式绝缘子表面闪络导致GIS导体对外壳放电故障分析、处理过程,为防止类似事故的发生和处理提供借鉴。
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