CN106154038A - A kind of for the cable system resistance value method of testing containing independent core point pair - Google Patents
A kind of for the cable system resistance value method of testing containing independent core point pair Download PDFInfo
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- CN106154038A CN106154038A CN201510144349.7A CN201510144349A CN106154038A CN 106154038 A CN106154038 A CN 106154038A CN 201510144349 A CN201510144349 A CN 201510144349A CN 106154038 A CN106154038 A CN 106154038A
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- core point
- cable system
- resistance value
- independent core
- wire
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Abstract
This technology belongs to resistance value method of testing field, is specifically related to a kind of for the cable system resistance value method of testing containing independent core point pair.Improve the accuracy in follow-up test, the construction of cable analyzed.Step one: determined there is at least one independent core point pair in cable system by breadth-first search, if having, entering step 2, otherwise terminating；Step 2: once test between the independent core point pair found in step one, obtains resistance value R between this independent core point pair, can the linear resistivity ρ of wire used in this cable system divided by conductor length L between this independent core point with R；Step 3: assume total N root wire in cable system, line length Ln by conductor resistance rate ρ of gained in step 2 Yu each wire, resistance value Rn of available solid conductor, the annexation between the recycling nodal method of analysis and core point calculate in whole cable system any core point between resistance value.
Description
Technical field
This technology belongs to resistance value method of testing field, is specifically related to a kind of for the electricity containing independent core point pair
Cable net resistance value method of testing.
Background technology
When currently utilizing cable system tester to carry out wireline test, need to learn in advance the wire electricity of tested cable
Resistance rate, for the standard electric resistance calculating tested cable.But cable producer provide resistivity data with
The resistivity of actual wire is the most inconsistent, thus affects result of calculation.
The resistivity adaptive approach for cable system test that this article proposes, first according to cable configurations file
The connection status of tested cable is analyzed, finds out the independent core point meeting test condition, then utilize this
Line length given in actual measurement resistance between a little independent core points and configuration file and quantity calculate the electricity specifying line style
Resistance rate ρ, and electricalresistivityρ is used for follow-up test process.
Summary of the invention
It is an object of the invention to: provide a kind of for the cable system resistance value test side containing independent core point pair
Method, in cable system test process, according to the resistivity of the current wire of actual test result calculations, makes
Obtain analysis result and more conform to the virtual condition of tested cable system.
Technical scheme is as follows: a kind of for the cable system resistance value test side containing independent core point pair
Method, comprises the following steps:
Step one: whole cable system uses the wire of same specification, determines electricity by breadth-first search
Cable net has at least one independent core point pair, if having, entering step 2, otherwise terminating；
Step 2: once test between the independent core point pair found in step one, obtains this independent core point
Resistance value R between pair, with R divided by conductor length L between this independent core point can in this cable system used by lead
The linear resistivity ρ of line；
Step 3: assume total N root wire in cable system, by conductor resistance rate ρ of gained in step 2
With the line length Ln of each wire, resistance value Rn of available solid conductor, the recycling nodal method of analysis and core point
Between annexation calculate in whole cable system any core point between resistance value.
Described independent core point is to for having wire to be joined directly together between 2 core points, and between core point, resistance is exactly this point-to-point transmission
The resistance of wire, and unrelated with other core points and other conductor resistances.
The remarkable result of the present invention is: calculate the electricity specifying line style according to the actual measurement resistance between independent core point
Resistance rate, the resistivity data obtained more can react the practical situation of cable, improve in follow-up test cable
The accuracy of structural analysis.
Detailed description of the invention
A kind of for the cable system resistance value method of testing containing independent core point pair, comprise the following steps:
Step one: whole cable system uses the wire of same specification, determines electricity by breadth-first search
Cable net has at least one independent core point pair, if having, entering step 2, otherwise terminating；The most independent core point
To for having wire to be joined directly together between 2 core points, and between core point, resistance is exactly the resistance of this point-to-point transmission wire, and with
Other core points and other conductor resistances are unrelated；
Step 2: once test between the independent core point pair found in step one, obtains this independent core point
Resistance value R between pair, with R divided by conductor length L between this independent core point can in this cable system used by lead
The linear resistivity ρ of line；
Step 3: assume in cable system total N root wire, by conductor resistance rate ρ of gained in step 2 with
The line length Ln of each wire, resistance value Rn of available solid conductor, the recycling nodal method of analysis and core point it
Between annexation calculate in whole cable system any core point between resistance value.
Claims (2)
1. the cable system resistance value method of testing being used for containing independent core point pair, it is characterised in that bag
Include following steps:
Step one: whole cable system uses the wire of same specification, determines electricity by breadth-first search
Cable net has at least one independent core point pair, if having, entering step 2, otherwise terminating；
Step 2: once test between the independent core point pair found in step one, obtains this independent core point
Resistance value R between pair, with R divided by conductor length L between this independent core point can in this cable system used by lead
The linear resistivity ρ of line；
Step 3: assume total N root wire in cable system, by conductor resistance rate ρ of gained in step 2
With the line length Ln of each wire, resistance value Rn of available solid conductor, the recycling nodal method of analysis and core point
Between annexation calculate in whole cable system any core point between resistance value.
The most according to claim 1 a kind of for the cable system resistance value test side containing independent core point pair
Method, it is characterised in that: described independent core point is to for having wire to be joined directly together between 2 core points, and resistance between core point
It is exactly the resistance of this point-to-point transmission wire, and unrelated with other core points and other conductor resistances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144349.7A CN106154038A (en) | 2015-03-30 | 2015-03-30 | A kind of for the cable system resistance value method of testing containing independent core point pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144349.7A CN106154038A (en) | 2015-03-30 | 2015-03-30 | A kind of for the cable system resistance value method of testing containing independent core point pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106154038A true CN106154038A (en) | 2016-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510144349.7A Pending CN106154038A (en) | 2015-03-30 | 2015-03-30 | A kind of for the cable system resistance value method of testing containing independent core point pair |
Country Status (1)
| Country | Link |
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| CN (1) | CN106154038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942187A (en) * | 2017-11-21 | 2018-04-20 | 北京宇航系统工程研究所 | A kind of cable system continuity test method based on constant-current source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923115A (en) * | 2010-08-17 | 2010-12-22 | 攀枝花学院 | Method for measuring resistivity of material |
| CN102156230A (en) * | 2011-03-07 | 2011-08-17 | 上海出入境检验检疫局机电产品检测技术中心 | Temperature-increment testing capability verifying sample |
| CN103033720A (en) * | 2012-12-09 | 2013-04-10 | 太原理工大学 | Multi-core cable long distance distinguishing method |
| CN103293384A (en) * | 2013-05-09 | 2013-09-11 | 国家电网公司 | Online cable resistance tuning method for power distribution network |
-
2015
- 2015-03-30 CN CN201510144349.7A patent/CN106154038A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923115A (en) * | 2010-08-17 | 2010-12-22 | 攀枝花学院 | Method for measuring resistivity of material |
| CN102156230A (en) * | 2011-03-07 | 2011-08-17 | 上海出入境检验检疫局机电产品检测技术中心 | Temperature-increment testing capability verifying sample |
| CN103033720A (en) * | 2012-12-09 | 2013-04-10 | 太原理工大学 | Multi-core cable long distance distinguishing method |
| CN103293384A (en) * | 2013-05-09 | 2013-09-11 | 国家电网公司 | Online cable resistance tuning method for power distribution network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942187A (en) * | 2017-11-21 | 2018-04-20 | 北京宇航系统工程研究所 | A kind of cable system continuity test method based on constant-current source |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161123 |