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High-voltage cable porcelain bushing terminal explosion protection device

A protective device and high-voltage cable technology, applied in the direction of insulators, etc., can solve the problems of ceramic fragments affecting the surrounding personnel, equipment safety, affecting surrounding personnel, equipment safety, etc., achieve good impact resistance, good electrical insulation performance, and ensure safe use Effect

Inactive Publication Date: 2014-07-23
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the ceramic sleeve terminal explodes, the splashed ceramic fragments will affect the safety of surrounding personnel and equipment
[0004] In order to prevent the ceramic fragments splashed after the explosion of the porcelain sleeve type terminal from affecting the safety of surrounding personnel and equipment, a kind of explosion protection for ceramic sleeve type cable terminals that can effectively absorb the energy generated by the explosion and reduce the number and distance of large ceramic fragments splashing was developed. device is necessary

Method used

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  • High-voltage cable porcelain bushing terminal explosion protection device
  • High-voltage cable porcelain bushing terminal explosion protection device
  • High-voltage cable porcelain bushing terminal explosion protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-Figure 3 As shown, an explosion protection device for a high-voltage cable porcelain sleeve terminal is sleeved outside the porcelain sleeve terminal. The protection device is a cage structure, including an upper flange 1, a lower flange 2, a protective component and an intermediate support plate 5. The above-mentioned upper flange 1 and lower flange 2 are respectively connected to the two ends of the ceramic bushing terminal, and there are multiple protective components, and each protective component is arranged between the upper flange 1 and the lower flange 2 at even intervals , to surround the terminal of the porcelain sleeve, and the intermediate support plate 5 is fixed on the protective assembly.

[0031] The upper flange 1, the lower flange 2, and the intermediate support plate 5 adopt the Huff connection method, and they are all ring-shaped structures. The upper flange 1 can be clamped with the upper flange of the porcelain sleeve terminal, an...

Embodiment 2

[0035] In this embodiment, the inclination angle of the protective insulator 4 is 10°, and the rest are the same as in Embodiment 1.

Embodiment 3

[0037] In this embodiment, the inclination angle of the protective insulator 4 is 8°, and the rest are the same as in Embodiment 1.

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Abstract

The invention relates to a high-voltage cable porcelain bushing terminal explosion protection device externally sleeving a porcelain bushing terminal. The high-voltage cable porcelain bushing terminal explosion protection device is characterized in that the protection device is of a cage structure and comprises an upper flange, a lower flange, a plurality of protection components and a middle supporting plate, the upper flange and the lower flange are connected with two ends of the porcelain bushing terminal respectively, the protection components are arranged between the upper flange and the lower flange in an evenly spaced manner and surround the porcelain bushing terminal, and the middle supporting plate is fixed onto the protection components. Compared with the prior art, the protection device has fine impact resistance and is convenient to disassemble and assemble, and splashing ceramic fragments generated after explosion of the porcelain bushing terminal cannot affect safety of surrounding people and near high-voltage equipment.

Description

technical field [0001] The invention relates to a cable fitting, in particular to an explosion protection device for a high-voltage cable porcelain sleeve terminal. Background technique [0002] In recent years, with the ever-changing development of the city, the construction and transformation of the power grid has continued to deepen. The overhead line has no line corridor in the urban construction plan, and it has been replaced by the power cable line planning, resulting in the high and low voltage power grids in the city. Power cables are used for power supply. Under the premise of meeting the requirements of urban planning, the use of cable lines can improve the reliability of power supply. Porcelain sleeve terminal is used to connect cables with overhead lines or substation busbars. The porcelain sleeve is made of high-strength inorganic material electric porcelain, which has good weather resistance, leakage resistance, electric corrosion ability and water repellency. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/58
Inventor 李海周婕史晓俊
Owner STATE GRID CORP OF CHINA
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