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Non-contact measuring method for overhead conductor diameter and cable standard board

An overhead wire and measurement method technology, applied in measurement devices, instruments, optical devices, etc., can solve problems such as difficulty in visual inspection of high-altitude cables, and achieve the effects of easy problem solving, easy determination, and rapid comparison.

Inactive Publication Date: 2017-06-13
STATE GRID SHANDONG ELECTRIC POWER CO HAIYANG POWER SUPPLY CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for high-altitude cables, it is difficult to accurately grasp it by visual inspection.

Method used

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  • Non-contact measuring method for overhead conductor diameter and cable standard board
  • Non-contact measuring method for overhead conductor diameter and cable standard board
  • Non-contact measuring method for overhead conductor diameter and cable standard board

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Embodiment Construction

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0038] Such as Figure 1~5 As shown, a non-contact measurement method for the wire diameter of an overhead wire includes a camera 4 and a cable standard plate 1, and the cable standard plate 1 includes a standard plate body, on which a plurality of The standard cable section 1-2 corresponding to the standard cable, the measurement steps are as follows:

[0039] (1) Place the cable standard plate 1 at a standard distance from the camera 4, lock the focal length of the camera to take pictures, and form a standard comparison picture in the camera; the standard comparison picture is consistent with the cable standard plate 1, and no longer repeat.

[0040] (2) Near the cable to be tested, select a position suitable fo...

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Abstract

The invention relates to the technical field of electric power circuit maintenance, in particular to a non-contact measuring method for the overhead conductor diameter. A camera and a cable standard board are involved, and the method is characterized by including the following measuring steps that (1) the cable standard board is placed at the position away from the camera by set standard distance to form a standard comparison picture; (2) a suitable position is selected around a cable to be measured, the object distance between the camera and the cable to be measured is measured and recorded, and an entity picture is formed through shooting; (3) a proportionality coefficient is converted according to the set standard distance and the object distance, and the entity picture is an entity comparison picture; (4) the entity comparison picture is compared with the standard comparison picture to determine the specification of the corresponding cable to be measured. The invention further discloses a cable standard board. The cable standard board comprises a standard board body, and multiple standard cable sections are distributed on the standard board body. The non-contact measuring method has the advantages of omitting power failure and contact and fast and accurately determining the specification diameter of overhead cables.

Description

technical field [0001] The invention relates to the technical field of power line maintenance, in particular to a non-contact measuring method for the wire diameter of an overhead wire and a cable standard plate. Background technique [0002] During the operation and maintenance of electric power overhead conductors and the theoretical calculation of line loss, it is often necessary to determine the diameter of the original overhead busbar and conductors, and then evaluate or judge whether they meet the new capacity requirements. Although there is original design data for each overhead line, due to various reasons, inspection personnel often cannot obtain it immediately. Power operation and maintenance personnel need a convenient and quick measurement method to obtain the wire diameter of overhead cables. The measurement (determination) of overhead wires in operation has to solve two difficult problems, one is to avoid the risk of high-voltage electric shock, and the other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/08
CPCG01B11/08
Inventor 迟绍辉徐志强刘成
Owner STATE GRID SHANDONG ELECTRIC POWER CO HAIYANG POWER SUPPLY CO
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