Outdoor high voltage insulators are divided into station post insulators, line post insulators, suspension insulators and porcelain railway insulators used for high voltage electrical systems.
Station post insulators: made of porcelain, also called porcelain post insulators, the type of which are comprehensive and complying with standard GB, IEC, ANSI, BS137 and AS etc. The annual capacity for single unit with maximum height 2500mm and rated cantilever less than 200KN﹒m is 150000units by wet process and dry process
Line post insulators: as insulating and supporting conductor in HV transmission & distribution line, post insulators are divided into line post porcelain insulator, cross arm porcelain insulator and long rod suspension insulator etc.
Porcelain railway insulators: divided into long rod suspension insulator and porcelain pin (post) insulator used on traction lines. Porcelain disc insulators are widely used for electrical railway systems.
Suspension insulator: divided into porcelain insulators and polymer insulators used on any voltage power lines with no puncture, high mechanical strength, excellent insulation and anti-pollution. This kind of insulator is safe and reliable in operation.
Outdoor high voltage insulators also have porcelain pin post insulators, hollow bushings, cutout insulators and other electrical equipment.
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