Under I or II class contamination conditions of station site, ceramic post insulator, sleeve and other ceramic devices are difficult to meet outdoor usage requirements.
在I、II级污秽等级的站址环境下,瓷质外绝缘单个支柱绝缘子、套管以及其他瓷质类设备难以满足户外要求;
The leader development model has been adopted as the insulator flashover criterion. The lightning performances of outgoing double circuit line schemes of the Three Gorges Power Station were computed and compared. The foreign operating experience is analyzed, Schemes are proposed.
用先导发展模型方法作为绝缘闪络判据,计算比较了峡500kV双回同杆并架出线不同方案的防雷性能,并对国外运行经验做了分析讨论,提出推荐方案。
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