Conduction insulation test method for low-frequency cable network

A cable network, insulation testing technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problem that the cable insulation characteristics and impedance characteristics cannot be tested, and achieve the purpose of reducing insulation leakage characteristics testing and low-frequency impedance characteristics testing. time, reducing labor costs, avoiding inconvenient effects

Active Publication Date: 2010-05-05
AEROSPACE DONGFANGHONG SATELLITE
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  • Abstract
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  • Claims
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Problems solved by technology

This method mainly tests whether the cable to be tested is twisted or not, a

Method used

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  • Conduction insulation test method for low-frequency cable network
  • Conduction insulation test method for low-frequency cable network
  • Conduction insulation test method for low-frequency cable network

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Embodiment

[0030] The method of the present invention will be further described below by taking the Y2-50 type cable as an example.

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Abstract

The invention discloses a conduction insulation test method for a low-frequency cable network, the proposal of testing insulation leakage characteristics comprises that: a certain lead wire is separated from other lead wires in a cable to be tested, other lead wires are short-circuited, and the test of insulation leakage characteristics for the lead wire with respect to other lead wires is completed at a time by using direct current high voltage current generated by a megger. And the proposal of testing low-frequency impedance characteristics comprises that: two adjacent lead wires in the cable to be tested are short-circuited, and the low-frequency impedance characteristics of the two lead wires are tested at a time by using a multimeter. The test method according to the invention has the characteristics of simple and convenient operation, less used tools, high test efficiency and the like, is more outstandingly advantageous for long well-laid cable network and particularly suitable for the requirement of onsite test.

Description

technical field [0001] The invention relates to a method for testing low-frequency cable insulation leakage characteristics and low-frequency impedance characteristics. Background technique [0002] The test of low-frequency cable network is an important part of satellite development and ground test system construction. At present, the testing of the cable network includes the insulation leakage characteristic test and the low frequency impedance characteristic test of the cable. The test method of the low-frequency impedance characteristic test is to ignore the influence of frequency on the impedance, add a DC voltage at both ends of the tested cable node, and calculate the low-frequency impedance characteristic of the tested cable node according to Ohm's law. The method of insulation leakage characteristic test is to use DC high voltage to measure whether there is leakage current between different wires of the cable and whether the insulation protection of the cable meets...

Claims

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Application Information

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IPC IPC(8): G01R31/02G01R27/02
Inventor 肖川方博洪雷吴松平蔡启新
Owner AEROSPACE DONGFANGHONG SATELLITE
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