浙江输电线路不同伞形绝缘子积污特性试验研究

Test Research on Contamination Accumulation Characteristic of Insulators with Different Shed Shape on Power Lines in Zhejiang Province Power Lines

选取浙江地区不同污秽类型测点,对同塔悬挂的不同伞形绝缘子的等值附盐密度进行对比研究。结果表明:钟罩型、双伞型绝缘子的饱和积污盐密比约为3.0;不同伞形绝缘子的盐密差别与该区域污染物类型有关,与农业污秽、沿海盐雾污秽区域相比,沙尘污染区域钟罩型与双伞型绝缘子的积污差异更显著。

The equivalent salt deposit density （ESDD） of different insulators suspended on the same tower in different pollution type area of Zhejiang province was compared. The results show that the ESDD ra- tio of bell jar type and double shed insulators is about 3.0, and the ratio relates to the pollution type, which is larger in the dust pollution area than the agricultural pollution area and coastal area.