Bar hanging composite insulator structure and performance

by:Mings     2020-07-04
Composite insulator by the umbrella cover, both ends of mandrel and hardware composition, product for 110 kv and below, not all pressure ring, 220 kv and above products with 1 ~ 2 equalizing ring. Equipped with equalizing ring can also according to customer's demand. 1. Made of silicone rubber as the matrix of polymer umbrella plate has good hydrophobic, corrosion resistance, aging resistance, etc. Can effectively prevent the pollution flashover accidents, and reduce the manual cleaning, zero maintenance, free test for transmission line safe operation provides a reliable guarantee. 2. Mandrel made using glass fiber reinforced resin sticks, has the very high tensile strength,> 1100 mpa) 1, which is about ordinary steel. 5 ~ 2 times, 3 ~ 5 times of the high strength porcelain. In addition also has good vibration damping property of rods, creep resistance and resistance to fatigue fracture. 3. Hardware and plug connection using non-invasive mechanical type pressure connection, this is the most advanced in the world, this connection. Its advantage is: safe and reliable connection, the force that press a scoop out uniform distribution, and does not damage the integrity of the glass fiber bundles of rods, can give full play to its excellent characteristics of high intensity. 4. Equalizing ring can improve the electric field distribution and decrease corona and the radio interference, umbrella skirt in strong arc without being burned. Effect of composite insulators for high voltage grade is more significant. 5. Composite insulator compact structure, small volume, light weight, For the porcelain insulator string at the same level of 1/7 ~ 1/10) , has the good elasticity, do not need regular cleaning. Therefore not only brings great convenience to transport and install, and greatly reduce maintenance cost and save a lot of maintenance costs, reduce the labor intensity of workers, also for the accident repair and compact circuit provides a good condition. 6. Composite insulator with the injection molding process for production. Umbrella cover outside is beautiful, less interface, firm bonding of mandrel and sheath without aperture, the insulation performance is good, can avoid interface breakdown phenomenon.
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