Combined insulator
A technology for composite insulators and sheds, which is applied in the high-voltage field, can solve the problems of affecting the safe operation of the power grid, the short life of composite insulators, and the flashover of composite insulators. reliability effect
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[0021] Fig. 6 is a structural schematic diagram of a composite insulator of the present invention. The upper part of the composite insulator adopts a plurality of existing sheds, and the lower part adopts two arc-shaped "bell jars" as shown in Fig. 3 Umbrella skirts are connected in series, and the center line of the axial half-section of the main shed skirt of the arc-shaped "bell-type" sheath is an arc segment, and the inclination angle of some arc segments is greater than 60°. Cavity depth greater than 45mm. A composite insulator of the present invention shown in Fig. 6 is produced in the following way: 1) use the arc-shaped "bell type" umbrella shed special mold to press and form two silicon rubber materials as shown in Fig. 3 and connect with outer sheath respectively Arc-shaped "bell-type" sheds, and cleaned and inspected; 2) Put the clean and dry mandrel into the existing integral mold for sheds and sheaths, place it on the injection vulcanizing machine, and inject it i...
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