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Device and method for testing interfacial normal bond strength of coating ice and lead wire of overhead power transmission line

An overhead transmission line and bonding strength technology, which is applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problem of inability to provide the bonding strength of wires and ice coating on cylindrical surfaces, limited use and scope, complicated methods and devices, etc. problem, to achieve the effect of broadening the test scope, reducing the test cost and simple structure

Active Publication Date: 2017-07-14
国网山西省电力公司经济技术研究院
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Problems solved by technology

[0007] Chinese patent documents CN1321881A and CN101482489B have proposed methods for testing the normal bonding strength of substrates and coatings or icing, but these two methods and devices are too complicated, and can only test structures with a flat surface, and cannot provide a cylindrical surface The bonding strength between the wire and the icing limits the use and scope of these two methods

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  • Device and method for testing interfacial normal bond strength of coating ice and lead wire of overhead power transmission line
  • Device and method for testing interfacial normal bond strength of coating ice and lead wire of overhead power transmission line
  • Device and method for testing interfacial normal bond strength of coating ice and lead wire of overhead power transmission line

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Embodiment Construction

[0047] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0048] Part 1: Preparation device for semi-cylindrical ice-coated transmission line samples

[0049] refer to figure 1 , figure 2 , image 3 and Figure 4 , the preparation device of the semi-cylindrical ice-coated transmission line sample of the present invention comprises: a horizontal bearing platform 7, a locking device back plate 5, a rubber sealing gasket 2, a hex nut 3, a locking sleeve 8, a locking nail 9 and power line 1.

[0050] The horizontal platform 7 is made of stainless steel and has a semi-cylindrical cavity. The wall of the semi-cylindrical cavity is coated with an anti-icing coating 4. The anti-icing coating 4 is made of Zhisheng Weihua ZS-611 anti-icing and snow coating , with a thickness of 0.1mm, the anti-icing coating 4 can prevent the combination of the icing on the wire and the semi-cylindrical cavity during...

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Abstract

The invention discloses a device and a method for testing interfacial normal bond strength of coating ice and a lead wire of an overhead power transmission line. The device comprises a semi-cylindrical coating ice containing mold, a power transmission line force-holding mold and a pre-tightening bolt. The device and the method, disclosed by the invention, have the beneficial effects that (1) the testing device has a simple structure and can be used for testing the interfacial normal bond strength of the coating ice and the cylindrical surface lead wire; a testing range of the bond strength of the coating ice and the lead wire is expanded and the testing precision can be effectively guaranteed; (2) the testing device can be repeatedly utilized so that the testing cost is reduced; (3) the testing method is simple and easy to operate.

Description

technical field [0001] The invention relates to a testing device and method, in particular to a device and a method for testing the normal bonding strength of an ice-covered and conductor interface of an overhead power transmission line. Background technique [0002] Our country has a vast territory, mountains and rivers, and the weather is changeable. From winter to early spring every year, the cold and warm air from the north and the south converge. When encountering extreme environmental climates, it is very easy to cause icing accidents on overhead wires. When the weight of icing causes the working stress of the wire or tower to exceed its design value, it will cause serious consequences of disconnection and tower collapse. [0003] At present, the deicing technology of overhead transmission lines includes thermal deicing, mechanical deicing and natural passive deicing and other main deicing methods. Among them, mechanical deicing has attracted much attention because of...

Claims

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Application Information

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IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 宋巍潘宝权谢东升黄铁铮孙滔
Owner 国网山西省电力公司经济技术研究院
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