Porcelain hollow insulator  is the device that enables one or several conductors to pass through a partition such as a wall or tank and insulates the conductors from it.

The hollow insulators are used extensively in electrical apparatus. The hollow insulator includes SF6 interrupter bushing .GIS bushing ,Transformer bushing , current transformer bushing ,capacitor bushing , Motor shell, electrostatic precipitator bushing, arrester bushings .Now we can supply porcelain hollow insulator for transformers upto 1000KV .This is the highest voltage in China.

Application Standard: IEC, ANSI, BS, AS, DIN, CAN, GB and etc.
Color: light gray, brown, white, sky blue and etc.
Non-standard products: Designed by CTC or specified by the customers.