Method for checking height difference between joints of cross arms for cross arms of dual-column pole tower

An inspection method, a joint technology, used in height/level measurement, measuring devices, instruments, etc., to achieve the effect of low price, fast installation speed, and light weight

Inactive Publication Date: 2011-04-20
ELECTRIC POWER OF HENAN LUOYANG POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] For the above situations, if you don’t know it in advance and don’t correct it, then it’s easy to make mistakes by using theodolite to check the height difference. Height difference due to incorrect method

Method used

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  • Method for checking height difference between joints of cross arms for cross arms of dual-column pole tower
  • Method for checking height difference between joints of cross arms for cross arms of dual-column pole tower
  • Method for checking height difference between joints of cross arms for cross arms of dual-column pole tower

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Embodiment Construction

[0028] like figure 1 , 2 The method of a double -standing pillar tower is shown in the way to check the height difference at the horizontal connection connection. After the welding of the double -standing pillar rod is welded, the seal of the double -standing pillar rod tower is drawn in advance. Founding Instrument 3, Founding Instrument 3 include: Jingwei, Strategic Instrument, Flating Water Pipe, etc. After the establishment of the actual situation and tools according to the actual situation and tools, including: include:

[0029] 1) Use the weft meter inspection

[0030] After the tower is welded, the body is measured at a distance with a steel roll tape to the lower section of the roller at the horizontal connection. Draw a leveling mark P point at this place. The height of the fucking printed mark P at the ground is about 1.6 meters. The latitude and weft instrument is on the center line of the line of the line of two A -pillar rods 1, B column pole 2, and the large...

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Abstract

The invention relates to the technical field of measurement and checking of power transmission lines and discloses a method for checking the height difference between joints of cross arms for the cross arms of a dual-column pole tower, in particular to the checking method which draws a leveling mark on the dual-column pole tower in advance after completing the welding of the dual-column pole tower and checks according to field actual situation and tool selection after the assembly is completed, and the method comprises the following steps: 1) using a theodolite to check; 2) using a level gauge to check; 3) using a leveling water pipe to check; and 4) using the method without the leveling mark. By adopting the method, the problems in the measurement and the checking can be effectively solved, and the problem that the height difference between the joints of the cross arms for the cross arms of the dual-column pole tower can only be measured and checked by using the theodolite or a total station and other instruments with the function of measuring the elevation angle can be solved. The instrument adopted in the method is a leveling instrument, a leveling telescope is not required, the arrangement speed is fast, the price is cheap and the weight is light.

Description

【Technical field】 [0001] The invention relates to the technical field of measurement and inspection of power transmission lines, in particular to a method for inspecting the height difference between cross-arms of double-column poles and towers at cross-arm connections. 【Background technique】 [0002] At present, the following methods are generally used when checking the height difference of the cross-arm of the double-column pole tower at the junction of the cross-arm: figure 1 As shown, place the theodolite on the center line of the line at a distance of more than 2 times the height of the double pole, so that the intersection point of the crosshairs of the telescope is aligned with point A at the junction of the poles. Then turn the aiming part, so that the telescope turns to look at the connection between the other pole and the cross-arm. figure 1 For point B shown, if the intersection point of the crosshairs coincides with point B, then points A and B are on the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00G01B5/02
Inventor 李岩刘治稳郭向阳霍建伟彭钢
Owner ELECTRIC POWER OF HENAN LUOYANG POWER SUPPLY
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