Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF1 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method mainly tests whether the cable to be tested is twisted or not, and cannot be used for testing cable insulation and impedance characteristics.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01R31/02G01R27/02
Inventor 肖川方博洪雷吴松平蔡启新
Owner AEROSPACE DONGFANGHONG SATELLITE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com