Tail pipe for full dry outdoor terminal

Abstract

The invention discloses a tail pipe for a full dry outdoor terminal. The tail pipe for the full dry outdoor terminal comprises a tail pipe body with a pipe connecting part, wherein the tail pipe body has an aluminum alloy integral structure, and a tail pipe sheath is arranged outside the pipe connecting part. The tail pipe body has the aluminum alloy integral structure and is subjected to die-casing by a high-pressure steel die, so that the tail pipe for the full dry outdoor terminal has reliable sealing property; the tail pipe body is made of an aluminum alloy 6061 material, and the material has higher conductivity, so that the overall performance of the full dry outdoor terminal can be improved; the PE (Poly Ethylene) tail pipe sheath is arranged outside the pipe connecting part, so that the tail pipe has extremely high toughness and insulating property, and the insulating property of the body can be improved; and lead sealing processing is adopted between the tail pipe and a cable, so that the conductivity is improved, and the overall sealing property and the mechanical properties are improved correspondingly.

Description

[0001] technical field [0002] The invention belongs to a high-voltage cable accessory, in particular to a fully dry outdoor terminal tailpipe with a reliable strength structure. Background technique [0003] like figure 1 , the internal body of the existing 64 / 110kv cross-linked cable full-dry outdoor terminal tailpipe is two brass tubes 1 with slightly different diameters, the two brass tubes are connected by welding to form a pipe joint 2, and the outer brass tube It is wound with glass ribbon, and the outermost layer is epoxy resin casting layer 3. The advantages of this structure are light weight, good conductivity, and improved conductivity level. The overall electrical performance is improved, and the long-term electrical life is guaranteed. . However, due to the internal welding of copper tubes in this structure, the copper tubes often break and bend due to the unreasonable bottom welding structure in actual use. Due to the breakage of the internal base material, ...

AI Technical Summary

Problems solved by technology

However, due to the internal welding of copper tubes in this structure, the copper tubes often break and bend due to the unreasonable bottom welding structure in actual use. Due to the breakage of the internal base material, the brittle and hard glass fiber epoxy part on the outside will be broken. , to reduce the overall electrical performance, or cause the entire prefabricated dry terminal to burst, thus bringing great trouble and safety hazards to the user and the entire high-voltage circuit

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