Umbrella skirt of composite insulator used in high-temperature high-humidity long and large tunnel contact network

• Main Authors: HUI QIANG, XU WENRONG, LI YUE, CAO XUAN, ZHU JIANBO, WANG RUBIAO, DU DAHUA, ZHAO TIANREN, HU ZHEN, ZHANG HAIBING, WEI QIANGHUA, WEI HUIWEN, HE QINGWEN, HUANG XIAOXIA, HUANG HONG, XIAO JINYUN, LUO YIN, WEI WEI
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2011
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The utility model relates to an umbrella skirt of a composite insulator used in a high-temperature high-humidity long and large tunnel contact network, comprising a protective sleeve and at least two umbrella bodies which are integrally manufactured, wherein the protective sleeve is surrounded by the umbrella bodies, distance between adjacent umbrella bodies is equal, diameters of the umbrella bodies are same, the external diameter of the protective sleeve is 48 mm, the thickness of the protective sleeve is 7-8 mm, the external diameter of each umbrella body is 116 mm, spacing between the umbrella bodies is 25 mm, the outer surface of the protective sleeve between two adjacent umbrella bodies takes the shape of a circular arc with a radius of 7 mm, and an included angle between the upper surface and the lower surface of each umbrella body is 4 degrees. In the utility model, the umbrella bodies with equal diameters are adopted, the total surface area of the composite insulator of the umbrella bodies with equal