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Simple understanding of composite insulators
TIME£º2021-11-29
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Porcelain composite: The core rod of the insulator porcelain composite insulator adopts high-strength porcelain, which solves the problem of "brittle fracture" of the core rod of general rod-shaped suspension composite insulators. The high-strength porcelain core composite umbrella skirt is stable and reliable. Due to its anti-pollution performance, the porcelain composite insulator can reduce the number of pieces used to reduce the string length, which can reduce the height of the tower, and its own light weight can improve the ability of the tower and the line to resist icing, saving a lot of steel and occupancy. Rakhine announced that the use of large-tonnage porcelain (glass) composite insulators in the construction of UHV projects is of greater significance. This product is good for anti-fouling ability. The number of pieces used can be reduced to reduce the string length, which can reduce the height of the tower. It is light in weight and can improve the icing resistance of the tower and lines. It saves a lot of steel and floor space. The use of tonnage porcelain (glass) composite insulators is of greater significance in the construction of UHV projects. According to expert calculations, the single circuit of the third-level pollution area of 500KV line can save about 9,800 tons of tower materials per 10,000 kilometers, and the dual-circuit can save about 24,200 tons of tower materials; the single circuit of the fourth-level pollution area can save about 11,300 tower materials for every 10,000 kilometers. Tons, the dual circuit can save about 27,900 tons of tower materials. 220KV line III level pollution area single circuit can save about 2700 tons of tower materials per 10,000 kilometers, double circuit can save about 5200 tons of tower materials; level IV single circuit can save about 3,600 tons of tower materials per 10,000 kilometers, double circuit It can save about 7000 tons of tower materials. If the product is used in power grid infrastructure projects at one time, the entire line can be in a maintenance-free state, saving a lot of manpower and material resources. According to expert calculations, 10,000 kilometers of 500KV lines can reduce maintenance personnel by 176 people each year, saving maintenance costs of about 26.88 million yuan; 220KV lines can reduce maintenance personnel by 84 people, saving maintenance costs of about 12.68 million