Development trend of post insulator in power station

     Rod post insulator is not breakdown type structure, the main problem is the pollution of the state along the surface flashover. Mechanical problems are bending strength and shock resistance. The bending strength of foreign pillar insulators is 68.6 ^ -98kN.m, the whole process pass rate of> 90%, from the current development point of view, although still porcelain rod pillar insulator, but because of porcelain uneven, electrical strength, Mechanical strength with the thickness or diameter increases.

     In particular, porcelain with hydrophilic, the surface of the damp after the conductivity of large, low pollution flashover voltage. From the current development trend, many foreign manufacturers are mostly in the material, process and design of insulators on the beginning of a radical change. Such as the former Soviet Union, the United States, Britain and other insulator manufacturers have developed a polymer concrete pillar insulators, organic composite pillar insulators. For new materials, new technology has become a rod pillar insulator manufacturers future research and development direction.