Tangshan High Voltage Porcelain Insulator Co.,Ltd.

main product is post insulator of ceramic,voltage 110kV-1000kV' , hollow insulator of 126kV,252kV, and 550kV for SF6 circuit breaker. The company donducts design and production strictly according to IEC60168 "Tests on Indoor and Outdoor Post Insulators of Ceramic Material or Glass for  Systems with Nominal Voltages Greater Than 1000V" IEC60273"Characteristics of  Indoor and Outdoor Post Insulators of Ceramic Material or Glass for  Systems with Nominal Voltages Greater Than 1000V" IEC62115"Hollow Pressurized and Unpressurized Ceramic and Glass Insulator for Use in Electrical Equipment". etc. The products have high reliability , small dispersiveness and large magin. and are used extensively  in 126kV-1100kV transformer substations for insulation and support of the conductive part in high voltage electric apparatus.