Low temperature resistant prefabricated cable

Abstract

The invention belongs to the technical field of substation equipment and particularly relates to a low temperature resistant prefabricated cable. The low temperature resistant prefabricated cable is characterized in that a main cable is crimped by one end of a cable aviation plug through a sealing crimping tube, and the cable aviation plug is internally integrated with a cable and a gold-plated cable female insertion core; a prefabricated cable socket end is internally integrated with a cable branch and a branch male insertion core and is filled with insulating sealant; the cable aviation plugis plugged into the prefabricated cable socket end, cable connection is completed through the main cable and the cable branch, and external electrical equipment is connected through the prefabricatedcable branch. The low temperature resistant prefabricated cable has advantages of simple structure, reasonable design, plug and play and convenient and quick properties. Tensile strength of the cablebranch and the socket end and sealing performance of the branch and the socket end can be improved; condensation in the socket is avoided, and a ground wire sheath is prevented from freezing and cracking; a ground wire is secure and is not easy to shed, sealing performance and insulation property are stronger, cables are easy to distinguish and find out, difficulty of on-site construction is reduced, the process of stripping is eliminated, and the on-site construction cycle is shortened.

Description

technical field [0001] The invention belongs to the technical field of substation equipment, and in particular relates to a low temperature resistant prefabricated cable. Background technique [0002] Traditional substations, smart substations and modular substations put forward high requirements for design, production and construction. The factory prefabricated structure is gradually adopted, which greatly reduces the difficulty of on-site construction and shortens the construction period. Plug and play prefabricated cables It has also been widely used. [0003] At present, prefabricated cables are often produced in the following ways: [0004] (1) Cable selection: Most of them use ZR-KVVRP2-22 or ZR-KVVRP22; [0005] (2) Prefabricated cable connector package: the joint between the connector and the cable adopts a screw clamp lock structure. [0006] The shortcoming that prior art exists has following several points: [0007] (1) ZR-KVVRP2-22 or ZR-KVVRP22 cable sheath ...

AI Technical Summary

Problems solved by technology

[0007] (1) ZR-KVVRP2-22 or ZR-KVVRP22 cable sheath inner sheath and outer sheath have problems such as poor low temperature resistance, low temperature brittleness and rapid aging;

[0008] (2) There is a sealing problem in the screw clamp lock structure adopted by the cable and the connector;

[0009] (3) It cannot play the role of anti-condensation water

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