Brief Description Of The Anti-pollution Effect Of Composite Insulators

Hardware Powerfitting overall rod design, compact structure, high quality, weight is 1/10 of the same grade porcelain and glass insulators, extremely convenient for transportation and installation. Suitable for polluted areas, high mechanical tensile load, large span and compact lines. Shandong Electric Power Hardware's pollution flashover voltage is 30-50% higher than that of the same grade porcelain and glass insulators. The performance is stable at -60 degrees to 200 degrees ambient temperature; the non-breakdown design is adopted, and there is no need to measure the zero value during operation.

(1) Excellent pollution performance. The surface of the silicone rubber umbrella material is not only hydrophobic when it is new, but also can restore its hydrophobicity when it is temporarily lost under the operating conditions of the line. Water forms water droplets on the surface of the material, and the very fine film of the silicone rubber liquid basically engulfs the pollutants, thereby inhibiting the dissolution of ionic substances in water, providing a high surface resistance, reducing leakage current, and increasing the pollution flashover voltage. This performance is maintained even when the silicone rubber material is aged. Thus, the reliability of power transmission is improved and the cleaning and maintenance costs of insulators are significantly reduced.

(2) Excellent resistance to ultraviolet rays, corrosion resistance, and no scratching.

(3) Small size and light weight The weight of the 110kv/100kn composite long rod insulator is only 12% of the corresponding 70kn porcelain insulator. Such a light weight greatly saves installation and transportation costs. It tends to not require a crane and is particularly suitable for emergency repairs of lines and the erection and maintenance of mountain lines that are inaccessible to transportation tools; it can simplify the tower structure and allow a larger span (reducing the number of towers); and it provides conditions for the development of compact lines.

(4) The production and delivery time is much shorter than that of porcelain insulators.

(5) No insulation resistance zero value detection is required.

(6) No brittleness This feature is not only conducive to installation and transportation, but also makes it much more resistant to arc than porcelain insulator washing machines. Composite insulator