Fxbw 10-750kv High Voltage Suspension Composite Insulator

The composite suspension insulator has the advantages of light weight and high mechanical and electrical strength, so it can be used for urban network reconstruction and erection of compact overhead lines. In particular, synthetic insulators have good anti-pollution flashover performance, and are especially suitable for use in areas with particularly serious pollution, so as to effectively improve the reliability of line operation and reduce line maintenance workload. Compared with porcelain or glass insulators, the excellent antifouling performance of composite suspension insulators is unquestionable, but the lightning resistance performance has two factors. The favorable factor is that it does not have the “zero value” like porcelain insulators and the “self-explosion” phenomenon like glass insulators, so it can maintain a high level of lightning resistance for the entire string of insulators during operation; the unfavorable factor is due to the diameter of the shed. Smaller, the dry arc distance is smaller than that of porcelain (or glass) insulators, that is, the lightning resistance level is less than that of porcelain (or glass) insulators of the same length.

The composite insulator is composed of three parts: insulating mandrel, silicon rod plastic umbrella sleeve and connecting hardware at both ends.
Insulation mandrel is the abbreviation of epoxy resin glass fiber pulling rod. It is the skeleton of the composite insulator and plays multiple functions such as supporting the umbrella sleeve, internal insulation, connecting the hardware at both ends, and bearing mechanical loads. It has a high tensile strength. Strength, generally up to 600Mpa or more, 2 times that of ordinary steel, 5-8 times that of porcelain materials, and has good dielectric properties and chemical resistance, as well as good bending fatigue resistance, creep resistance and impact resistance sex. The silicone rubber umbrella cover mainly plays the role of protecting the mandrel, blocking rain and snow, increasing the creepage distance and the external insulation of the product. It is based on high molecular polymer silicone rubber, supplemented by flame retardants, It has good hydrophobicity and migration, as well as good corrosion resistance, aging resistance, electrical insulation and other properties. And it has high pollution flashover voltage and shatter resistance, and the voltage distribution is uniform. Compared with porcelain, its flashover voltage is less than 2 times that of porcelain under the same conditions.