ESP Insulator, For High-voltage, Feature : Water Proof

Insulators physically support and electrically isolate the high-voltage system from ground. 
These are available in 2 types of material of construction 
A. Porcelain 
B. High Alumina (83 to 85% alumina)

The Porcelain (brown colour) Insulators are suitable for applications such as Cement Mill or Coal Mill ESPs where the operation and occasional surge temperatures do not cross 230 to 250 Deg. C. 
The High Alumina (white colour) Insulators can withstand temperatures upto 400 Deg. C and is a technically recommended product for Boiler (coal or oil fired applications), Clinker Cooler and Kiln ESP applications.