Method and system for testing swinging cross or breaking of multi-core cable

A technology of multi-core cables and test methods, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as low test efficiency, and achieve the effect of improving test efficiency and reducing the number of tests.

Inactive Publication Date: 2013-01-02
SHANGHAI ELECTRIC CABLE RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for multi-core cables, the test efficiency of this traditional test method is very low

Method used

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  • Method and system for testing swinging cross or breaking of multi-core cable
  • Method and system for testing swinging cross or breaking of multi-core cable

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Experimental program
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Embodiment Construction

[0023] Such as figure 2 As shown, the test system of the present invention includes a near-end switcher 5 and a far-end switcher 6, wherein the near-end switcher 5 includes a plurality of connection ports 51 for connecting with the cable core at the near-end of the tested cable 7 ; The remote switcher 6 includes a plurality of wiring ports 61 for connecting with the cable core at the far end of the tested cable 7 .

[0024] The near-end switcher 5 and the far-end switcher 6 are respectively connected to the switch controller 9 through the control signal line 12, and the switch controller 9 is also connected to the near-end switcher 5 through a near-end public channel 3, and through a far-end The common channel 4 is connected with the remote switch 6 .

[0025] The switching controller 9 is connected to the continuity tester 2 through the first test channel 21 and the second test channel 22 , and connected to the capacitance unbalance tester 8 through the third test channel 8...

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Abstract

The invention discloses a method and a system for testing swinging cross or breaking of a multi-core cable. The method includes the steps of A, selecting a one cable core of a tested cable and performing a continuity test by respectively connecting two ends of the cable core on a testing channel of a continuity tester; B, selecting another cable core and repeating the step A until continuity tests for all cable cores are finished; C, selecting one pair of cable cores of the tested cable and respectively connecting one ends thereof on a test channel of a capacitance unbalance tester to test capacitance difference of the pair of the cable cores relative to other cable cores and a metal sheath; D, selecting another pair of cable cores and repeating the step C until all capacitance unbalance tests for the cable cores are finished; E, selecting cable core pairs with abnormal test results obtained in the step C and the step D, combining the cable cores two by two, respectively connecting one ends on the continuity tester to finish the continuity test between two random cable cores, obtaining result of the swinging cross, and then recording the result.

Description

technical field [0001] The invention relates to a testing technology for cables, in particular to a method and system for testing mixed and broken lines of multi-core cables. Background technique [0002] In the cable production process, due to various abnormal reasons, sometimes there will be abnormal conduction (mixed wire) between the cable cores or between the cable core and the metal sheath, or abnormal breakage (broken wire) of the cable core, thus Great trouble is caused to the actual use of the cable. Therefore, the mixed and disconnection test of the cable is a necessary condition to ensure the normal use of the cable. In the past, the mixed and disconnected test of cables generally adopted the method of conducting two-two combination test. That is to combine all the cable cores in pairs (the metal sheath is also regarded as a single core), and then test the conduction status of various combinations in turn. This method has little effect on the test of small loga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 涂建坤龚江疆沈奶连
Owner SHANGHAI ELECTRIC CABLE RES INST
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