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Method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines and lightning arrester support

A technology of horizontal arrangement and lightning protection wires, which is applied in the installation of cables, installation of lighting conductors, electrical components, etc., which can solve the problems of high cost and large amount of construction work

Active Publication Date: 2012-05-30
JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the method of protecting insulated wires with lightning arresters cannot completely solve the problem of wire disconnection caused by lightning strikes.
If the method of overhead lightning conductors for distribution bare conductor lines is directly applied to insulated conductor lines, the cross-arm must be removed and the installation position must be lowered to leave space for the lightning conductor support. Therefore, the construction volume is large and the cost is high.

Method used

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  • Method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines and lightning arrester support
  • Method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines and lightning arrester support
  • Method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines and lightning arrester support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the linear lightning protection wire bracket is fixed on the line cement pole 1 corresponding to the original horizontally arranged insulated conductor line with a length of 1780mm. The linear lightning protection wire bracket is held by the angle steel bracket 5 and the second installation. The hoops 6 and 7 are formed, and the lightning wire suspension clamp 4 is hung on the angle steel bracket 5. The upper and lower distances between the two sets of mounting hoops 6, 7 are kept between 400mm-500mm, and one set of mounting hoops 6 is located above the cross arm hardware 2. , The other set of mounting hoop 7 is located under the cross arm hardware 2, and the installation hoop 6, 7 and the angle steel bracket 5 keep a distance of 30mm-35mm to ensure that they do not overlap with the cross arm round steel hoop 3; angle steel bracket 5 The height is 1900mm-2000mm to ensure that the lightning protection angle of the steel strand is 29°-33°.

[0022]...

Embodiment 2

[0024] Such as Figure 5 , Image 6 As shown, on the line cement pole 1 corresponding to the original horizontally arranged insulated conductor line with a length of 1780mm, the tension-type lightning protection wire bracket is fixed at the position of the crossarm fitting 2 with a length of 1780mm. The lightning protection wire bracket is installed by the angle steel bracket 5 and the second group. The hoops 6 and 7 are formed. A diamond-shaped hanging plate 9 is installed on the angle steel bracket 5, and a lightning cable suspension clamp 4 is hung on the diamond-shaped hanging plate 9. The upper and lower distances between the two sets of mounting hoops 6, 7 are kept between 400mm-500mm , One set of mounting hoops 6 is located above the cross arm hardware 2, and the other set of mounting hoops 7 is located below the cross arm hardware 2. The spacing between the mounting hoops 6, 7 and the angle steel bracket 5 is kept 30mm-35mm to ensure It does not overlap with the cross ar...

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Abstract

The invention discloses a method for mounting overhead ground wire on horizontally-arranged 10KV insulated wire lines, which can reduce the lighting striking rate of a wire, construction amount and operation cost. A ground wire support is fixed at a position of a line cement post, corresponding to a cross beam hardware position with a line length of 1,780mm of an original horizontally-arranged insulator wire line. The ground wire support is comprised of a steel angle support and two sets of mounting loops; and the up and down distance between the two sets of mounting loops is between 400 and 500 millimeters; wherein one set of mounting loops is arranged above the cross beam hardware, while the other set of mounting loops is positioned below the cross beam hardware; the distances between the mounting loops and the steel angle support are kept between 30 and 35 millimeters, so that the mounting loops cannot be overlapped with a cross beam round steel loop nor an inserting bolt; and the height of the steel angle support is kept between 1,90 and 2,000 millimeters, so that the lighting protection angle of a steel strand is between 29 and 33 degrees.

Description

Technical field: [0001] The invention relates to a method for adding an overhead lightning protection wire to a horizontally arranged 10KV insulated wire line. Background technique: [0002] There are two ways to prevent lightning on power lines: 1. Overhead lightning protection lines are generally installed on the top of transmission line towers or on top of cement poles of power distribution bare conductor lines to prevent bare conductors from being exposed to lightning. 2. The insulated wire line adopts the method of connecting various lightning arrester equipment to guide the lightning current. Among them, the method of protecting insulated wires with lightning arresters cannot completely solve the problem of wire breakage caused by lightning strikes. If the overhead lightning protection wire method of the bare conductor line of power distribution is directly applied to the insulated wire line, the cross arm must be removed and the installation position must be lowered to ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G13/00
Inventor 王征
Owner JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY