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Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable

A technology of composite polypropylene and connecting structure, applied in the direction of electrical components, etc., can solve the problems of poor temperature resistance and the operating temperature can only reach 80 degrees, and achieve the effects of superior performance, good external pressure resistance, and strong tensile resistance.

Inactive Publication Date: 2014-09-24
GUIZHOU HUANRUI TECH
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  • Description
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Problems solved by technology

At present, the power cable protection pipes in domestic production and sales mainly include rigid polyvinyl chloride (PVC-U) pipes and high-density polyethylene (HDPE) pipes, but the temperature resistance of these two pipes is poor, and the highest operating temperature is only Can reach 80 degrees

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  • Connecting structure and manufacturing method of composite polypropylene GHFB square high-voltage cable

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0016] see figure 1 The first object of the present invention is to provide a connection structure for composite polypropylene GHFB square high-voltage cables, including a pipe body 1, the inner and outer walls of the pipe body 1 are corrugated, and a sealing ring is used between the two pipe bodies 1 3 and clamp 2, one end of the two pipe bodies 1 is connected to the sealing ring 3, the clamp 2 is set on the outer layer of the sealing ring 3, and the width of the ...

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Abstract

The invention relates to the technical field of power cable production, in particular to a connecting structure and a manufacturing method of a composite polypropylene GHFB square high-voltage cable. According to the technical scheme, pipe material bodies are included, the inner wall and the outer wall of each pipe material body are both in a corrugated shape, the two pipe material bodies are connected through a sealing ring and a clamping hoop, one end of each of the two pipe material bodies is connected into the sealing ring, the clamping hoop is arranged on the outer layer of the sealing ring in a sleeved mode, and the width of the clamping hoop is at least the width of the wave crests of three ripples of the pipe material bodies. The connecting structure has the advantages of being good in insulation performance and good in connecting sealing performance, great low-temperature shock resistance is achieved, meanwhile, materials are the lightest in all ground burying pipe materials, and conveying cost and mounting type hoisting cost can be greatly lowered.

Description

technical field [0001] The invention relates to the technical field of power cable production, in particular to a connection structure and a manufacturing method of a composite polypropylene GHFB square high-voltage cable. Background technique [0002] The non-excavation power cable protection tube adopts non-excavation technology, without a large amount of dredging, excavation and damage to the road surface, and completes the laying of pipelines and cables in the ranks of roads, railways, buildings, and riverbeds. Compared with the traditional "grooving and buried pipe", it is more suitable for the current environmental protection requirements, removes the dust, traffic congestion and other disturbing factors caused by traditional construction, and can also solve the problem of laying pipelines in some areas where excavation operations cannot be implemented, such as the protection of historical sites Districts, downtown areas, crop and farmland protection areas, highways, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/04
Inventor 赵勇
Owner GUIZHOU HUANRUI TECH
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