Pin type ceramic insulator
Pin insulators are components used to support or suspend conductors and to provide electrical insulation between towers and conductors. Pin-type ordinary ceramic insulator Porcelain and cast steel are glued together with cement glue, and the surface of the porcelain is coated with a layer of glaze to improve the insulation performance of the insulator.
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porcelain insulator
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Pin type ceramic insulator
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Pin insulators are components used to support or suspend conductors and to provide electrical insulation between towers and conductors. Pin-type ordinary ceramic insulator Porcelain and cast steel are glued together with cement glue, and the surface of the porcelain is coated with a layer of glaze to improve the insulation performance of the insulator.
Insulators should have sufficient dielectric strength and mechanical strength. During operation, they should not only withstand the effects of working voltage and overvoltage, but also have sufficient resistance to the erosion of chemical impurities, and be able to adapt to temperature changes and the influence of the surrounding environment.
Pin-type common ceramic insulators. Porcelain parts and cast steel are glued together with cement glue, and the surface of the porcelain parts is coated with a layer of glaze to improve the insulation performance of the insulator. The performance stabilizer is coated on the surface of the adhesive where the cast steel and porcelain parts are bonded.
The main reason why overhead lines are vulnerable to lightning strikes and pollution flashovers is that the pin insulators of the lines are subject to pollution and moisture absorption in rainy days, and the insulation level is reduced, resulting in pollution flashovers and breakdowns that cause line faults.
After cracks or serious flaws, pin-type ordinary ceramic insulators can sometimes continue to operate in sunny weather; but in light rain or heavy fog, the insulation will drop sharply, causing line failures.
In addition, when a slight crack occurs on a pin-type ordinary ceramic insulator, it is difficult for line inspectors to find the defect even with a telescope. This leaves a potential safety hazard for the line and increases unsafe factors for line operation.
The pin insulator adopts the piercing structure designed by Koubei, which can penetrate the insulating layer of the wire installed in the wire slot to form an electrical connection; the reliable arc striker is closely connected with the hardware on the upper end of the insulator through bolts, and the other end is the discharge end, which is installed on the The grounding electrode on the fittings at the lower end of the insulator forms a discharge gap; and an insulating cover wraps all exposed fittings at the upper end of the insulator except the discharge end of the arc fork.
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