PRTV涂料在直流线路防覆冰闪络的应用效果

Anti-icing Effect of PRTV Coating on DC Transmission Line

为了对PRTV涂料的防冰闪效果进行分析,通过对运行中涂有PRTV涂料的绝缘子运行情况进行调研以及在人工气候室内对不同片数的喷涂PRTV与未喷涂PRTV涂料的绝缘子直流覆冰闪络特性进行试验研究对比,给出了PRTV涂料对直流输电线路用绝缘子覆冰闪络特性的影响,指出PRTV并不能有效提高冰闪电压,PRTV涂料作为防冰闪的措施需要谨慎对待。

Base on the investigation of the operating insulators coated by PRTV and the comparison between DC flashover performances of ice-coated insulator strings with and without PRTV coating in artificial climate chamber, this paper analyzes the effect of PRTV coating on DC flashover of ice-coated insulator strings, and find that PRTV coating can not raise the DC flashover voltage of the ice-coated insulator strings, which means that taking PRTV as an anti-icing measure ought to be considered prudently.