ESP Shaft Insulator is suitable to use in high voltage applications. The insulator are made up of porcelain with a glazed surface finish. Having high mechanical strength and ruggedness, this is sure to last for an extended period of time. It is used for overhead power transmission. ESP Shaft Insulator does not degrade in quality or become inferior due to impacts, heat, and tough climate conditions. Therefore, this is sure to last for an extended period of time.