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Airtight box for intermediate head of cable

A technology of cable intermediate joints and sealing boxes, applied in the direction of cable joints, etc., can solve the problems of high cost and high strength, and achieve the effects of easy portability, simple operation, and shortened repair period

Inactive Publication Date: 2014-05-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the above-mentioned prior art, the present invention provides a cable intermediate joint sealing box, which solves the problems of high cost and high strength caused by the need to build a cable well when repairing the cable intermediate end in the prior art

Method used

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  • Airtight box for intermediate head of cable
  • Airtight box for intermediate head of cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Such as Figure 1-2 As shown, the box body 1 is composed of two upper and lower shells, and a sealing layer is arranged between the two shells after being fastened with bolts 2; the lower surface of the upper shell is arranged in the center along the axial direction Semicircular through groove I, the upper surface of the lower shell is provided with semicircular through groove II in the axial direction in the center, two semicircular through grooves I and through groove II correspond to form a circular through hole 3, circular The diameter of the through hole matches the diameter of the cable, and the diameter of the through hole is smaller than the width and height of the box; the through hole is provided with two outer edges 4 of equal length at both ends of the box, and a sealing strip is provided between the outer edge and the cable .

[0020] The preferred embodiment of the present invention is that the material of the box body is stainless steel, type 301. The a...

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Abstract

The invention relates to an airtight box for an intermediate head of a cable. The structure of the airtight box is characterized in that a through hole is formed along the axial direction inside a box body; the through hole is provided with outer edges at the two ends of the box body, and sealing strips are arranged between the outer edges and the cable. The airtight box disclosed by the invention is used for replacing a cable well to protect the intermediate head of the cable, which not only eliminates the cost for building the cable well but also greatly shortens the repair period; the airtight box is convenient to carry, simple to operate, capable of retaining sealing and corrosion resistances and mechanical strength for a long time under the ground, stable in test data and firm in structure, and the materials and manufacturing process satisfy the standards; therefore, the airtight box is worth of popularization and application.

Description

technical field [0001] The invention relates to an auxiliary equipment of an electric power system, in particular to a cable intermediate joint sealing box, which belongs to the field of electric power application. Background technique [0002] The faults of the cable line generally occur at the terminal head and the non-terminal head. The fault at the terminal head can remake the cable terminal, but in the accident analysis report of the power supply company, about 70%-90% of the faults occur at the non-terminal. When repairing this kind of fault, it is necessary to make a cable intermediate joint, and then build a cable well to protect the repaired cable joint. The cost of building a cable well is very high, generally tens of thousands of yuan, which brings a lot of expenses to the power supply company. And time-consuming and labor-intensive, labor-intensive. Contents of the invention [0003] Aiming at the problems in the above-mentioned prior art, the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/10
Inventor 刘传波王清昊郜洪力张传久于善洪吴云国赵跃军卑立杰汤辉杨莹莹王蕾王雪龚晨斌
Owner STATE GRID CORP OF CHINA
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