Power cable joint

A technology of cable joints and power cables, applied in the direction of cable joints, etc., can solve the problems of easy water seepage, many openings, complex structure, etc., and achieve the effect of good conductivity, few openings, and simple structure

Inactive Publication Date: 2019-08-06
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the shortcomings of traditional cable joints in the prior art, such as complex structure, many openings, and easy water seepage, the present invention provides a power cable joint different from the prior art, which has a simple structure, fewer openings, and better sealing performance. good and stable connection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a power cable connector includes a first cable connector and a second cable connector, the first cable connector is connected to the second cable connector and has the same structure, and the first cable connector and the second cable connector both include insulation Layer 2, the insulating layer 2 is connected to the bell flange 6, the insulating layer 2 is provided with a fastening layer 3 closely connected with the insulating layer 2, and the fastening layer 3 is provided with a primary clamping structure and Secondary clamping structure.

[0031] The primary clamping structure includes a stress cone 4 and a spring 5, the outer ring of the stress cone 4 is clamped by the fastening layer 3, the inner ring is installed on the contact cylinder 8, and one end of the spring 5 is clamped with the stress cone 4 tight, and the other end is fixedly connected through the bell flange 6.

Embodiment 2

[0033] Such as figure 1 As shown, a power cable joint, the secondary clamping structure includes a set screw 7 , and the set screw 7 passes through the insulating layer 2 and the fastening layer 3 . Other parts are identical with embodiment 1.

[0034] The working principle of this embodiment is:

[0035] After the first cable joint and the second cable joint are connected, the structure is integrated, and the middle is connected and conducts electricity through the conductive transition body 1. When in use, insert the first cable 9 into the contact cylinder 8 in the first cable joint, and continue to insert until it is connected to the conductive transition body. body 1, and then give the first cable 9 a vertical force by rotating the set screw 7 to tighten it, while the stress cone 4 is elastic, and the diameter of the contact cylinder 8 is smaller than the diameter of the first cable 9 before use Therefore, when the first cable 9 is inserted, it is clamped under the actio...

Embodiment 3

[0037] Such as figure 2 As shown, a power cable joint, the secondary clamping structure includes a torsion spring 11, a connecting plate 12 and a clamping plate 13, the connecting plate 12 is installed on the insulating layer 2 and the fastening layer 3, the connecting The plate 12 is connected with the clamping plate 13, and the two ends of the torsion spring 11 are respectively clamped on the connecting plate 12 and the clamping plate 13. Other parts are identical with embodiment 1.

[0038] The insulating layer 2 is connected to the bell jar flange 6 through screws; the bell jar flange 6 is provided with a sealing ring; the secondary clamping structure is provided with four to eight places, which are radially clamped on the outer circumference of the cable superior.

[0039] The working principle of this embodiment is similar to that of Embodiment 2, the difference is that after the first cable 9 is inserted into the first cable connector and connected to the conductive ...

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PUM

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Abstract

The invention discloses a power cable joint, which belongs to the technical field of power equipment. The defects of the traditional cable joint in the prior art, such as complicated structure, more openings and easy seepage, are solved. The main structure includes a first cable joint and a second cable joint. The first cable joint and the second cable joint are connected and are of the same structure. Each of the first cable joint and the second cable joint includes an insulating layer which is connected with a bell jar flange. Each insulating layer is internally provided with a fastening layer tightly connected with the insulating layer. Each fastening layer is provided with a primary clamping structure and a secondary clamping structure. The power cable joint of the invention is mainlyused to connect cables.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of power equipment, and in particular relates to a power cable joint. [0003] Background technique: [0004] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, power station lead-out lines, and internal power supply in industrial and mining enterprises. In power lines, the proportion of cables is gradually increasing; power cables are used in power systems. The cable products used to transmit and distribute high-power electric energy in the main line of the company include various voltage levels from 1 to 500KV and above, and various insulated power cables. [0005] A cable is made of one or more mutually insulated conductors and an outer insulating layer to transmit power or information from one place to another; cable joints are required during cable installation. Many of the current cable layouts are installed out...

Claims

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Application Information

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IPC IPC(8): H02G15/08
CPCH02G15/08
Inventor 谢辰璐李超刘松庄雷明咸会增岳雅晴边文浩徐铖鞠鹏薛洁王兴宇郑春阳王俊山邓文慧朱裕庆
Owner STATE GRID SHANDONG ELECTRIC POWER
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