RTV silicon post insulator P-70 is a new product specially developed for Egyptian customers. Red epoxy resin coating is sprayed on the surface of ceramic insulator to improve the damage resistance, pollution resistance and pollution flashover resistance of the product. The humidity resistance voltage and pollution resistance voltage are 2 ~ 2.5 times that of ceramic insulators with the same creepage distance. It has strong impact resistance and impact resistance, does not need manual cleaning, and effectively improves the reliability of safe operation. Its mechanical and electrical performance is better than that of ordinary porcelain insulator, and its operation safety margin is large. This is an updated product for power cord, and the color is also relatively.