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Method for entering 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential

A technology of vertical arrangement and transmission lines, applied in the field of potential, to achieve the effect of increasing the discharge voltage, improving the level of safe and stable operation, and increasing the combined gap distance

Inactive Publication Date: 2013-12-25
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the ever-changing structure of the tower head of the double-circuit vertically arranged compact transmission line on the same tower, the path for workers to enter and exit the equipotential is also very different from that of ordinary compact lines during live work.

Method used

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  • Method for entering 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential
  • Method for entering 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential
  • Method for entering 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential

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Embodiment 1

[0026] like Figure 1-3 As shown, the tower includes a tower head and a tower body. The tower head includes a tower window and a cross arm at its top, and an upper phase conductor, a middle phase conductor and a lower phase conductor are arranged along the axial direction of the tower window. The wire is arranged at the bottom end of the V-shaped insulator, and is connected to both sides of the tower window through the insulator, and voltage equalizing rings are respectively arranged on both sides of the insulator. All operating personnel wear insulating clothing and enter the construction site. The person in charge reads out the work ticket, explains the work tasks, explains the safety precautions and clearly divides the work; the live working personnel check the live working tools, and if they are damaged, they need to be replaced in time. When the person in charge of the work confirms that the work can be carried out, the live working personnel wear a full set of shielding ...

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Abstract

The invention relates to a method for entering a 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential. A tower comprises a tower head and a tower body. The tower head comprises a tower window and a cross arm arranged on the top of the tower window. A wire is arranged in the tower window. A live-working person climbs the tower, reaches the position with the height equal to that of the wire, moves to the bottom end of an insulator in the tower window from the edge of the tower window in parallel, and reaches the wire equipotential. By the adoption of the method for entering the 500kV common-tower double-circuit vertically-arranged compact transmission line equipotential, the live-working person has high safety in the process of 500kV common-tower double-circuit vertically-arranged compact transmission circuit live working.

Description

Technical field: [0001] The invention relates to a live working method of a transmission line, in particular to a method for entering into a 500kV same-tower double-circuit vertically arranged compact transmission line equipotential method. Background technique: [0002] In order to reduce the cost of transmission lines and reduce the width of transmission line corridors, the prior art discloses that while limiting power frequency overvoltage and operating overvoltage, the design of towers is also being continuously improved in an attempt to make the size of transmission lines more compact. Existing 500kV compact transmission lines generally adopt an inverted triangle arrangement, but the width occupied by the tower edge of the double-circuit compact transmission line on the same tower with three-phase conductors vertically arranged is wider than that of the traditional double-circuit compact transmission line on the same tower. The width is greatly reduced 。 [0003] Live...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 丁玉剑李庆峰廖蔚明周军宋刚宿志一姜德喜刘玉胜
Owner STATE GRID CORP OF CHINA
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