Composite insulator manufacturing technology

by:Mings     2020-05-08
Composite external insulation technology advantage, economy, reliability has been widely recognized, replace the hollow porcelain insulator and solve the polluted area substation equipment with porcelain insulator pollution flashover, fracture, explosion and other issues of a new generation of products. Insulator commonly known as porcelain, it is used to support guide dgjg_kydl line insulators. Insulator can ensure wire and cross arm, the tower has enough insulation. Manufacturing process for composite insulator mature technology, simple, with the strength of rods, strength and compressive strength of the design is more reasonable. When run under the condition of high humidity atmosphere for a long time, if the composite insulator hydrophobic partial loss or complete loss, easy to occur inter umbrella skirt flying arc sub flashover accident, caused serious threat to safe and reliable operation of power grid. At present, for transmission lines with composite insulator, the umbrella skirt shape than in the past have greatly improved, basically to & quot; The size of the umbrella & quot; ,“; Three five umbrella umbrella structure combination & quot; And & quot; In the two big two & quot; Three kinds of umbrella, umbrella diameter 200 mm, the umbrella is up to 140 mm; For all kinds of composite hollow insulator to prevent more intensive umbrella skirt structure design is easy in the heavy rain or the rainstorm, the rain into chains, caused the rain. Therefore, the optimization of composite insulators umbrella skirt shape design is still a need to focus in the study of system. Interface and interface sealing structure design and sealing structure design is the key to the design of composite hollow insulator, composite insulator running time is not long, after all, quantity is not much, much of its key technology without running environment test for a long time, especially the end fittings, glass fiber reinforced epoxy resin tube with umbrella cover three interface, if not handled properly, will affect the safe operation of composite hollow insulator. High voltage insulator according to the different classification standards and the form can be divided into different types and type, in actual use and developing show different performance and value, according to the structural form can be divided into pin insulator, insulator and suspension insulator. It can handle in running wires vertical load and horizontal pulling force. It also suffering from sun, rain, climate change and chemical corrosion. Therefore, insulator should not only have good electrical properties, and to have sufficient mechanical strength. The stand or fall of insulator on line safe operation is very important. Link to the classification of the insulator insulator can be classified according to the structure, function and use of the material. ( 2) According to different functions can be divided into common type insulator and anti-pollution insulator. According to the use of material can be divided into the porcelain insulator, glass insulator and composite insulator ( Silicone synthetic) Composite insulator. The composite insulator is short for bar hanging type organic silicone rubber insulator. Composite insulator compared with traditional porcelain insulator, glass insulator, light quality, small volume, easy to transport and install, high mechanical strength and defile resistant performance is good wait for an advantage, at the same time can be avoided in operation of cleaning, avoid preventive test, and can avoid the pollution flashover accident. According to the existing technical knowledge and operating experience, the composite insulator pressure strength control in ( 1. 5 ~ 1. 6) Rating agencies load, steel foot fracture strength control in ( 1. 4 to 1. 5) Rating agencies load, should be more reasonable. Especially suitable for urban power grid filth and medium above. Technology development trend of intensity of pressure to control the current, circuit with high mechanical strength of silicone rubber composite insulator * all can reach 550000 cattle strength grade, its mechanical margin all can reach 1. 4 to 1. 5, even higher. 【 On a message: composite insulator manufacturing variety 】 【 The next message: composite insulator FRP rod materials 】
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