中文摘要：

绝缘子表面憎水性的差异会导致表面积污和污层湿润的差异,进而影响绝缘子的运行性能。为了研究雾霾环境下超疏水涂层绝缘子的积污规律与绝缘性能,利用实验室小型人工雾霾模拟装置,对比研究了人工雾霾环境下超疏水涂层绝缘子与长效室温硫化硅橡胶（PRTV）涂层绝缘子的表面积污水平与泄漏电流变化规律,并从两种涂层绝缘子表面憎水性差异与超疏水涂层污秽自清洁特性出发,对试验结果的差异原因进行了分析。结果表明：人工雾霾环境下,超疏水涂层绝缘子相比于PRTV涂层绝缘子,表面积污量减少31.2%,同时超疏水涂层绝缘子具有低泄漏电流。超疏水涂层是一种可行的提高雾霾环境下输变电设备绝缘性能的防护措施。

英文摘要：

Difference of surface hydrophobicity of insulators can result in difference in surface contamination accumula- tion and contamination layer wetting characteristics, which will affect the performances of insulators. To study the contamination accumulation and insulation performances of super-hydrophobic coating insulator under fog-haze envi- ronment, an artificial fog-haze platform was utilized. The surface contamination accumulation level and leakage current evolution characteristics of super-hydrophobic coating insulator and permanent room temperature vulcanization （PRTV） coating insulator were comparatively investigated in artificial fog-haze experiments. The differences in experimental re- sults were discussed by the hydrophobicity differences of the two kinds of coating and the self-cleaning effect of super-hydrophobic coating. The results show that the surface contamination level of super-hydrophobic coating insulator can be reduced by 31.2% compared with that of PRTV coating insulator, meanwhile, super-hydrophobic coating insulator owns lower leakage current. The results indicate that the super-hydrophobic coating has the potential to improve insula- tion performances of external insulation equipment in fog-haze environment.