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Cable open-circuit point position detecting method

A detection method and breaking point technology, applied in the direction of the fault location, etc., can solve the problems of complex testing process and high testing requirements, and achieve the effect of wide application range, simple operation and improved accuracy.

Inactive Publication Date: 2013-12-11
陕西海泰电子有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of high testing requirements and complicated testing process of the existing cable fault point detection method, the present invention provides a convenient and easy-to-operate cable break point position detection method for testing the cable break fault position

Method used

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  • Cable open-circuit point position detecting method
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  • Cable open-circuit point position detecting method

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Embodiment Construction

[0055] First, by a multimeter, a resistance meter or other instruments, it is detected that a certain conductor of the cable 3 to be tested has an open circuit fault, then it is determined that the conductor with the open circuit fault is the conductor to be tested, and the other conductors in the cable to be tested are the first reference conductor 1, Then the present invention is used to locate the cable breaking point fault.

[0056] First technical solution of the present invention:

[0057] like figure 1As shown, the wire ab is the first reference wire, and the wire cd is the wire where the open circuit occurs. For a two-core cable, the distributed capacitance values ​​between the wires on both sides of the break point of the wire cd and the wire ab are tested respectively. According to the difference between the two capacitance values The proportional relationship can measure the relative position of the break point in the cable to be tested, and realize the fault locat...

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Abstract

The invention relates to a cable open-circuit point position detecting method, including the following steps: 1. selecting two uniform lead wires with equal distances and lengths from the cable, wherein the lead wire cd is an open-circuit lead wire; 2. connecting two test pens of a capacitance testing instrument or equipment with the end point a of the lead wire ab and the end point c of the lead wire cd to measure the distributed capacitance C1 between the lead wire ab and the lead wire cd; 3. connecting two test pens of the capacitance testing instrument or equipment with the end point b of the lead wire ab and the end point d of the lead wire cd to measure the distributed capacitance C2 between the lead wire ab and the lead wire cd; 4, calculating the relative distance X from the open-circuit point position to the end point c according to the formula. The method solves the technical problems that the existing cable fault point detecting method has high test requirement and complex test process, and has the advantages of convenience and easiness in operation.

Description

technical field [0001] The invention relates to a method for detecting the position of a cable breaking point. Background technique [0002] With the improvement of my country's industrial automation level, the number of multi-core cables and wire harnesses used in aircraft, missiles, satellites, ships, spacecraft, communications, automobiles, large-scale test systems and automated factories has gradually increased. The failure of multi-core cables has become an important factor affecting the overall reliability of the system. Traditional cable testing generally uses independent instruments such as resistance meters, insulation resistance meters, and withstand voltage testers to test the continuity, insulation, and withstand voltage of cables. In order to adapt to the testing of complex cables, a variety of special cable testing equipment has appeared on the market. On the basis of meeting the performance parameters of the cables, the cable fault location function is also a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 郭恩全高宝平宁成军杨朋白晓峰郭永锋
Owner 陕西海泰电子有限责任公司
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