The insulator is used to support and secure the busbar and charged conductor and make sure there is enough distance and insulation between conductors or between the conductor and ground.Chat Now
The insulator is used to support and secure the busbar and charged conductor and make sure there is enough distance and insulation between conductors or between the conductor and ground.
nsulator can guarantee enough insulation existing between the conductor and cross arm/tower. It mainly has two functions in overhead transmission lines, namely, supporting conductor and preventing electric leakage. It should be able to stand the vertical load and the horizontal tensile strength of the conductor when operating. It also stands sunshine, rain, climate changes and chemical corrosion. Therefore, the insulator requires not only good electrical properties, but also enough mechanical strength.
Porcelain insulator consists of ceramic part, iron cap, steel leg, which are cemented by adhesive containing Portland cement and quartz sand. There is a thin buffer layer （resilient coating）between iron cap / steel leg and the adhesive and the top of the steel leg has cushion pad. The ceramic surface is usually glazed white or brown, or other colors if necessary and the surface of the iron cap and steel leg is fully hot galvanized.
Porcelain Insulators include suspension porcelain insulators, pin type insulators, post type insulators, spool type insulators, shackle insulators, stay insulators, etc.
Suspension porcelain insulators include normal type suspension insulators, fog type suspension insulators, aerodynamic type suspension insulators, anti-pollution type (double shed) suspension insulators, clevis type suspension insulators, ball and socket type suspension insulators, etc.
Pin type insulators include pin type insulator for high voltage,pin insulator for telephone lines,spindle for pin type insulator,etc.
Post type insulators include post type insulators for high voltage,post insulstor for normal disconnector,etc.
1) Small, light weighted, high strength and good electrical property
2) It has almost 100 years operating experience. High anti-aging property. Within a certain working period, faulty insulators can be replaced if detected.
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