The double-umbrellainsulator has the advantages of improving the pollution-resistance performance of the insulator and increasing the creepage distance.
这种双伞绝缘子的优点是改善绝缘子的耐污秽性能，增加爬电距离。
2
The utility model provides an insulator with a step-shaped umbrella skirt, relating to the field of high-voltage insulator.
本实用新型一种伞裙为阶梯形的绝缘子，涉及高电压绝缘子领域。
3
The situation of pollution flashover in East China was analyzed and the three-umbrella-type insulator with good anti-fouling characteristic was recommended.