The product is composed of iron cap, toughened glass and steel foot, and is glued together with cement adhesive. This product all uses the international most advanced cylinder head structure, its characteristic is the head size is small. Light weight, high strength and large creepage distance. It can save metal materials and reduce line cost. In order to meet the needs of live working, the traditional structure shape in China is adopted on the brim.

It is easy to detect toughened glass insulator with zero value self breaking. As long as it is observed on the ground or on the helicopter, there is no need to board the pole to detect one by one, which reduces the labor intensity of workers. The annual operation self breaking rate of the imported products is 0.02-0.04%, which can save the line maintenance cost. Good arc resistance and vibration resistance. In operation, the new surface of glass insulator suffering from lightning burn is still smooth glass body, and it has toughened internal stress protection layer. Therefore, it still maintains enough insulation capacity and mechanical strength. In 500 kV transmission line, the galloping disaster caused by conductor ice has occurred for many times. After the test, the mechanical and electrical performance of glass insulator has not declined.