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Overhead power cable and arrangement method thereof

A technology of power cables and cables, applied in the field of power cables, can solve problems affecting power supply reliability, quick tripping, and affecting safe operation

Inactive Publication Date: 2010-01-27
XINXIANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the current overhead power cables, in heavily polluted areas, when there is rain or fog, due to the serious pollution of the needle porcelain bottle, the insulation function is often reduced or broken down, causing the 10KV line to be grounded or two-phase grounded. Quick-break trip, and because the fault point is not easy to be found, it is difficult to troubleshoot and take a long time, which affects safe operation and affects the reliability of power supply

Method used

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  • Overhead power cable and arrangement method thereof
  • Overhead power cable and arrangement method thereof

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Embodiment Construction

[0007] Embodiments are further described in conjunction with the above figures. The present invention is an improvement to the cable wire 2 of the prior art, that is, when the cable wire is used as an overhead wire, the heat-shrinkable insulating tubes 1 with the same number as the required needle-type porcelain bottles 3 are covered on the cable wire, and each heat-shrinkable insulating tube 1 The length of the insulating tube is longer than the diameter of the porcelain bottle. When laying out wires, put a certain number of heat-shrinkable insulating tubes on the cable. When erecting the wires, heat each insulating tube on the cable corresponding to the position of each porcelain bottle with an alcohol blowtorch and fix it at the contact position of the porcelain bottle. Install it on the porcelain bottle. fixed in the top groove.

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Abstract

The invention discloses an overhead power cable and an arrangement method thereof. The overhead power cable comprises a cable wire which is sheathed by heat-shrinkable insulating tubes with a quantity equal to the quantity of required needle-type ceramic bottles. The length of each heat-shrinkable insulating tube is greater than the diameter of each ceramic bottle. The arrangement method of the overhead power cable is as below: when cable layout is carried out, sheathing the heat-shrinkable insulating tubes with the equal quantity on the cable wire; and when the overhead cable arrangement is carried out, heating the insulating tubes on the cable in a manner of corresponding to the positions of the ceramic bottles, fixing the insulating tubes at ceramic bottle contacting positions and then mounting the insulating tubes in grooves of the ceramic bottles. The cable has the advantages of simple structure, convenient arrangement, good short-circuit prevention effect and power supply safety guaranty.

Description

Technical field: [0001] The invention relates to a power cable, in particular to an overhead power cable and a stringing method thereof. Background technique: [0002] For the current overhead power cables, in heavily polluted areas, when there is rain or fog, due to the serious pollution of the needle porcelain bottle, the insulation function is often reduced or broken down, causing 10KV line grounding power outage or two-phase grounding. Quick break trip, and because the fault point is not easy to be found, it is difficult and time-consuming to troubleshoot the fault, which affects safe operation and affects the reliability of power supply. Invention content: [0003] The object of the present invention is to provide an overhead power cable and its wiring method with reliable insulation degree and safe operation of power supply equipment. [0004] The technical solution of the present invention is accomplished in the following manner, which includes cables, and is chara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B7/28H01G7/00
Inventor 郭在良牛保臣郭红云郑建新郭红辉
Owner XINXIANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER
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