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Double-umbrella structure tempered glass insulators are also common basic equipment in power systems, which can effectively improve the working efficiency of transmission lines. For standard insulators or ordinary insulators, there are generally grooves under the umbrella to increase the creepage distance of the insulator, which can increase the flashover voltage. The grooves of common-type insulators are relatively shallow, the depth of outer sheds of bell-shaped insulators is relatively large, and the depth of the middle grooves of bell-shaped insulators is usually greater than that of the outer edge./
In contrast, the insulator with a double umbrella structure has no grooves under the umbrella, and the underside of the umbrella is smooth without edges and has an open shape. Therefore, the tempered glass insulator with a double umbrella structure has good self-cleaning performance in wind and rain, and the natural pollution rate is low. The above advantages, together with the large creepage distance, so the products of the double-umbrella structure insulators usually have good pollution and pressure resistance. In a dusty environment, transmission lines usually use umbrella-shaped insulators.
As a professional insulator manufacturer and trader from China, we provide various types of high-quality insulators. Our areas of product expertise include porcelain, glass, and polymer insulators, bushings for capacitors, technical ceramics, lightning arresters, disconnectors, and much more. Neoinsulator
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