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A Method for Reducing the Crimping Flash Rate of Conductor Tension Tubes of Overhead Transmission Lines

An overhead transmission line and tension-resistant technology, which is applied in the direction of connection and connection through deformation, can solve the problem of reducing the rate of crimping flashing of overhead transmission line conductors, the physical connection of flashes that are difficult to clean, and the crimping of straining tubes. Problems such as high edge rate, achieve the effect of reducing the probability of flashing, easy to clean, and reducing the probability of flashing

Active Publication Date: 2021-02-19
SHENZHEN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a method for reducing the crimping flash rate of tension tubes of overhead transmission line wires, so as to solve the high rate of crimping flashes of tension tubes in traditional technology, because the flashes are difficult to clean and easy to clean. Causes problems with unreliable physical connections

Method used

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  • A Method for Reducing the Crimping Flash Rate of Conductor Tension Tubes of Overhead Transmission Lines
  • A Method for Reducing the Crimping Flash Rate of Conductor Tension Tubes of Overhead Transmission Lines
  • A Method for Reducing the Crimping Flash Rate of Conductor Tension Tubes of Overhead Transmission Lines

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Embodiment Construction

[0039] The core content of this patent is to wrap a polyvinyl chloride resin film on the surface of the strain-resistant tube to reduce the flash caused by excessive friction during the crimping process, and to use the calculated crimping force. The implementation mode will be further described.

[0040] The following will describe in detail an embodiment of a method for reducing the crimping burr rate of a tension tube of an overhead power transmission line conductor provided by the present invention.

[0041] Such as figure 1 As shown, take KTACSR / EST-720 / 300 heat-resistant extra-strong steel-cored aluminum alloy stranded wire and supporting NY-720NH / 300EA strain clamp as an example for research and analysis.

[0042] The strain clamp consists of two parts: aluminum tube and steel tube. They are respectively crimped and connected with the lead aluminum alloy stranded wire and the steel core. The outer diameters of NY-720NH / 300EA tension clamp aluminum tube and steel tube ...

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Abstract

A method for reducing the crimping flash ratio of an overhead transmission line conductor comprises butting a first metal part and a second metal part, and arranging a tensile tube outside the first metal part and the second metal part; probing into the material of the tensile pipe and calculating the positive pressure of the hydraulic system of compression molding of a tensile pipe according to the material of the tensile pipe; using the positive pressure of the hydraulic system of tensile pipe crimp forming for tensile pipe crimp forming. In accordance with the invention, a PVC resin film iswound on the surface of the tensile tube, so that the friction force is reduced during crimping molding, as the probability of generating flash is greatly reduced dure crimping, and the PVC resin film is easy to clean, and the positive pressure of hydraulic crimping is calculated by querying the parameters corresponding to the material quality, so that the crimping force is controlled, thereby controlling a large number of flashes caused by the frictional force when crimping, and solving the problems of high flash rate leading to unreliable physical connection in the existing crimping processand more time-consuming problems caused by troublesome subsequent processing steps.

Description

technical field [0001] The invention relates to the technical field of electric power engineering, in particular to a method for reducing the crimping burr rate of tension tubes of conductors of overhead transmission lines. Background technique [0002] Wire tension tube crimping is a process method to form a permanent electrical connection between conductors through pressure. With the current capacity of power transmission line projects increasing, the requirements for the excellent rate of wire tension tube crimping continue to increase. Therefore, the power grid continuously optimizes the tension tube crimping process to ensure the reliability of power line operation. [0003] In the power system transmission lines, overhead wires are often used to transmit large-capacity electric energy. With the increase in the capacity of transmission overhead lines, the reliability of power supply needs to be continuously improved, so as to enhance the ability of transmission lines to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R43/04
CPCH01R43/04
Inventor 曹宁
Owner SHENZHEN POWER SUPPLY BUREAU
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