500kv and above 500kv power cable outdoor terminal
A power cable, outdoor technology, applied in the direction of cable terminals, etc., can solve the problems of difficult control of stress cone material quality, poor aging resistance, high temperature resistance, difficult to control material quality, etc., to achieve excellent process formability, good fluidity, Stable and reliable product performance
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Embodiment 1
[0022] Such as figure 1 As shown, an outdoor terminal for power cables of 500kV and above includes a bushing 1, an insulating agent 2, a stress cone 3, an epoxy sleeve 4 and a spring compression mechanism 5, and also includes an outlet fitting 6 and an upper cover plate 7 , the lower bottom plate 8 and the tail pipe 9, the stress cone 3 is composed of a conductor 3-1 and an insulator 3-2, and the insulating agent 2 is insulating oil. The stress cone 3 is installed in the casing 1, and the epoxy sleeve 4 is placed on the outside of the stress cone 3. The casing 1 is filled with insulating oil, and the spring compression mechanism 5 connected with the tail pipe 9 is arranged under the stress cone 3. The tightening mechanism 5 includes a spring 5-1 and a spring seat 5-2. The spring 5-1 is arranged between the stress cone 8 and the spring seat 5-2. The stress cone 3 is made of liquid silicone rubber.
Embodiment 2
[0024] Such as figure 1 As shown, it is basically the same as the first embodiment, except that the insulating agent 2 is insulating gas, and the bushing 1 is filled with insulating gas.
[0025] Such as figure 2 As shown, when the stress cone 3 of the present invention is made, a two-component glue injection machine for liquid silicone rubber is used. The tonnage of the glue injection machine required is 100 tons. The two-component liquid silicone rubber material of component B and component B is placed in the two rubber barrels 24 of the injection machine, and the material is injected into the material tube 27 through the injection pump 26 on the injection frame 25, and the material is mixed. After being mixed with the mold 28, it is injected into the mold cavity in the mold 29, and the mold 29 is locked by a clamping mechanism 30, and finally the mold 29 is heated and vulcanized to form the stress cone 1.
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