CN208596563U - A kind of cable with monitoring line - Google Patents
A kind of cable with monitoring line Download PDFInfo
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- CN208596563U CN208596563U CN201820775587.7U CN201820775587U CN208596563U CN 208596563 U CN208596563 U CN 208596563U CN 201820775587 U CN201820775587 U CN 201820775587U CN 208596563 U CN208596563 U CN 208596563U
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- monitoring
- cable
- monitoring line
- insulating layer
- conductor
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Abstract
The utility model discloses a kind of cables with monitoring line, the monitoring line group (8) that inside cable there is one or more identical or different position is arranged in, monitoring line group (8) includes two or more monitoring lines, monitoring line include conductor (9) and monitoring insulating materials (10), monitor insulating materials (10) conductor (9) outside；Insulating effect is played in monitoring insulating materials (10) in normal state, loses insulating effect after water is met in monitoring insulating materials (10)；Or monitoring line group (8) include conductor (9) and have it is multiple monitoring slot (12) monitoring insulating layers (13), monitor insulating layer (13) conductor (9) outside；The utility model inside cable by adding monitoring line, the quality condition of cable can be monitored, simultaneously purposeful maintenance investigation can be carried out according to the data of the monitoring line feedback of cable, the maintenance cost for reducing route avoids just carrying out replacement cable when cable transmission signal quality declines or route breaks down.
Description
Technical field
The utility model relates to a kind of cable, specifically a kind of cable with monitoring line belongs to cable manufacturing techniques neck
Domain.
Background technique
Since the worm plague of rats, the multidisciplinary crossed construction of project, amblent air temperature variation etc. some transient causes, cable are easy to
By extraneous mechanical damage, the especially outermost layer sheath of cable is easy to by environmental damage.After cable laying, with the passing of time day
Long, the moisture in air and soil immerses inside cable, corrodes armouring and shielded layer, and shielding properties and the machinery for reducing cable are anti-
Performance is protected, the service life of cable is seriously affected.Generally within the cable life period, when the decline of cable transmission signal quality or line
When road is broken down, relevant departments can just take measures to replace cable.
Therefore, it is necessary to detect to cable fault.Patent document if application publication number is CN107884685A discloses
A kind of method for searching the unobvious damage of high-tension cable external insulation, includes the following steps: 1. to be damaged exhausted outside cable ends
Edge peel off, expose shielded layer copper sheet, by cable ends with insulant prop with keep at a distance；2. by cable outer surface every one
Section distance is wound with soft copper litzendraht wire and is grounded together with cable testing bridge；3. high voltage direct current generator output is terminated at cable one
The shielded layer at end；4. call through test power supply applies DC experiment voltage to cable shield, when microampere meter instruction has mutation,
It should stop continuing to boost and reducing test voltage until keeping this voltage value when microampere meter instruction is stablized；5. along cable surface
Spray；6. should stop spraying immediately when microampere meter instruction has significant change, test voltage observation microampere meter instruction is slowly increased
Whether continue to increase, can primarily determine impaired loci in this area if continuing to increase.Although this method can be quickly found out height
The damage location of voltage cable.But detection mode is very complicated, needs special equipment, cannot achieve real-time detection, Bu Nengji
When obtain damage information.
Utility model content
The purpose of the utility model is to provide a kind of cable with monitoring line, realization is monitored cable, sends out in time
Existing cable fault.
In order to reach above-mentioned technical purpose, a kind of technical solution of the utility model is:
There is one or more identical or different position is arranged in for a kind of cable with monitoring line, the cable inside
Line group is monitored, the monitoring line group includes two or more monitoring lines, and the monitoring line includes that conductor and the first monitoring are exhausted
Edge layer, the first monitoring insulating layer is outside conductor；The first monitoring insulating layer plays insulating effect in normal state, when
Insulation resistance declines or loses insulating effect after first monitoring insulating layer meets water.
According to the resistance calculations fault point of monitoring line, monitors insulating layer insulation resistance after meeting water and decline, pass through the method
It monitors whether cable intakes, while the water inlet fault point of cable can be calculated according to the conductor DC resistance of monitoring line group, thus
Realize the monitoring to cable fault point.
Insulating layer insulation resistance decline or two conductors (any two conductor) short circuit after meeting water are monitored, the method will be passed through
It monitors whether cable intakes, the water inlet fault point of cable can be equally calculated according to the conductor DC resistance of monitoring line.
Preferably, the monitoring line group has two monitoring lines, two monitoring line pair twists are together.Preferably, institute
Stating has the second monitoring insulating layer outside monitoring line group, the second monitoring insulating layer plays insulating effect in normal state, when
Insulation resistance declines or loses insulating effect after second monitoring insulating layer meets water.
First monitoring insulating layer, the second monitoring insulating layer play insulating effect in normal state, when the first monitoring insulation
Insulation resistance declines or loses insulating effect after layer, the second monitoring insulating layer chance water, preferably, the first monitoring insulation
Layer, the second monitoring insulating layer are formed by insulating paper, and insulating paper is outside conductor.
To effectively prevent monitoring line to meet water oxygen, the conductor is tinned copper conductor.
Cable other performance is not had an impact to make to monitor line group, such as the bending property of cable, the monitoring line group
It is wrapped in inside cable using helical structure.
Line group is monitored to be arranged inside cable, specifically, such as the monitoring line group is arranged between oversheath and armor,
Or the monitoring line group setting is arranged between oversheath and armor and cable core between cable core, or simultaneously.By in electricity
Monitoring line group is respectively set in different levels inside cable, can judge the damage of cable according to the test data of monitoring line group in this way
Bad degree.
After cable is damaged into water, the insulation resistance for monitoring line declines, and it is available exhausted to monitor insulation resistance between line group
Both threads data measured of the edge ohmmeter in any end of monitoring line group.Cable can be judged according to insulation resistance situation of change
Damage flooded condition.
Line pair is monitored for paper insulation, monitoring line is to insulation resistance decline or short circuit when cable water inlet.For not short-circuit
Monitoring line, can by the way of high-voltage breakdown will monitor line group puncture short, can measure respectively cable ends monitoring line group
Short-circuit resistance calculate fault point.
Another solution is that
There is one or more identical or different position is arranged in for a kind of cable with monitoring line, the cable inside
Monitoring line group, the monitoring line group includes two or more monitoring lines, and the monitoring line includes conductor and monitor insulating layer,
The monitoring insulating layer is outside conductor；Multiple monitoring slots are provided on the monitoring insulating layer, the multiple monitoring slot interval is set
It sets.
Setting monitoring slot in interval on insulating layer is monitored, insulation resistance sharply declines after monitoring line group and meeting water, it can be determined that
Whether cable damages water inlet.
Preferably, the monitoring line of the monitoring line group is twisted together by a constant pitch spiral.Equally, the conductor is
Tinned copper conductor.
The utility model can monitor the matter of cable by the way that addition monitors line (between such as cable core and outside armouring) inside cable
It measures situation (especially degree of impairment), while purposeful maintenance investigation can be carried out according to the data of the monitoring line feedback of cable,
The maintenance cost for reducing route avoids just carrying out replacement cable when cable transmission signal quality declines or route breaks down.
Detailed description of the invention
Fig. 1 is the schematic diagram with monitoring line cable.
Fig. 2 is a kind of monitoring line cross-sectional view.
Fig. 3 is another monitoring line schematic diagram.
Fig. 4 is another monitoring line cross-sectional view.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, a kind of cable (aluminium sheath railway digital signal cable) with monitoring line, including insulated wire cores 1,
Yarn 2 is pricked for polyester outside insulated wire cores 1, is cable core band 3 outside multiple cores.Aluminium sheath 4, liner layer are followed successively by outside cable core band 3
5, armor 6 (such as steel-tape armouring), oversheath 7.
Tool is wrapped in inside cable there are two line group 8, monitoring line group 8 is monitored using helical structure inside the cable.Tool
Body, monitoring line group 8 is separately positioned between oversheath 7 and armor 6 (armor 6 is outer with armouring gap spiral winding),
And between cable core.Without limitation, the different layers in cable can be set, or same in the quantity the utility model for monitoring line group 8
One layer of different location.
The monitoring line group 8 includes two or more monitoring lines, and in the present embodiment, the monitoring line group 8 includes two
A monitoring line, as shown in Fig. 2, the monitoring line includes conductor 9 and the first monitoring insulating layer 10, conductor 9 is tinned copper conductor, is had
Effect prevents monitoring line from meeting water oxygen, and the first monitoring insulating layer 10 is outside conductor 9.The first monitoring insulating layer 10 is normal
Insulating effect is played under state, insulation resistance declines or lose insulating effect after the first monitoring insulating layer 10 meets water.First prison
It surveys the insulation resistance after meeting water of insulating layer 10 to decline, monitors whether cable intakes by the method, while can be according to monitoring line
9 D.C. resistance of conductor of group 8 calculates the water inlet fault point of cable, to realize the monitoring to cable fault point.First monitoring is exhausted
Edge layer 10 is using " playing insulating effect in normal state, insulation resistance declines or lose insulating effect after meeting water " one kind
Material, in the present embodiment, the first monitoring insulating layer 10 is formed by insulating paper, and insulating paper is outside conductor 9.
Two monitoring lines of the monitoring line group 8, two monitoring line pair twists together, have the second prison outside two monitoring lines
Survey insulating layer 11.Second monitoring insulating layer 11 uses " plays insulating effect, insulation resistance declines after meeting water in normal state
Or lose insulating effect " a kind of material, in the present embodiment, the second monitoring insulating layer 11 is formed by insulating paper, and insulating paper is wrapped
Outside two monitoring lines.After meeting water, water enters monitoring line by the second monitoring insulating layer 11, at this point, the first monitoring of monitoring line
Whether insulating layer 10 insulation resistance decline or 9 short circuit of conductor of two monitoring lines after meeting water, will monitor cable by the method
Water inlet can equally calculate the water inlet fault point of cable according to 9 D.C. resistance of conductor of monitoring line.
Two monitoring line groups 8 are separately positioned between oversheath 7 and armor 6 (with armouring gap spiral outside armor 6
Winding) and cable core between, in this way, can determine whether the damaged condition of cable by the test data of two monitoring line groups 8.According to
This principle, cable is interior in different level setting monitoring line groups 8, passes through the test data for monitoring line group 8, it can be determined that cable tool
Which level body damages.
Embodiment 2
With embodiment 1, difference is: the monitoring line group 8 includes two or more monitoring lines, and monitoring line is by certain
Pitch spiral twists together, and the monitoring line includes conductor 9 and monitoring insulating layer 13, and the monitoring insulating layer 13 is in conductor 9
Outside.The conductor 9 is tinned copper conductor, and monitoring insulating layer 13 squeezes out cladding using polythene material.The monitoring insulating layer 13
On be provided with multiple monitoring slots 12, the setting of the multiple interval of monitoring slot 12.The depth of monitoring slot 12 exposes conductor 9.
Due to setting monitoring slot 12 on monitoring insulating layer 13, insulation resistance sharply declines after monitoring line group 8 meets water, can be with
Judge whether cable damages water inlet.
Above-described embodiment does not limit the utility model in any way, all by the way of equivalent substitution or equivalent transformation
The technical solution of acquisition is all fallen in the protection scope of the utility model.
Claims (13)
1. a kind of cable with monitoring line, it is characterised in that: have one or more settings identical inside the cable or
The monitoring line group (8) of different location, the monitoring line group (8) include two or more monitoring lines, and the monitoring line includes
Conductor (9) and first monitoring insulating layer (10), it is described first monitoring insulating layer (10) conductor (9) outside；First monitoring is exhausted
Edge layer (10) plays insulating effect in normal state, and insulation resistance declines or loses after water is met in the first monitoring insulating layer (10)
Insulating effect.
2. a kind of cable with monitoring line according to claim 1, it is characterised in that: the monitoring line group (8) has
Two monitoring lines, two monitoring line pair twists are together.
3. a kind of cable with monitoring line according to claim 1, it is characterised in that: the monitoring line group (8) has outside
There is the second monitoring insulating layer (11), insulating effect is played in second monitoring insulating layer (11) in normal state, when the second prison
It surveys insulation resistance after insulating layer (11) meet water and declines or lose insulating effect.
4. a kind of cable with monitoring line according to claim 3, it is characterised in that: the second monitoring insulating layer
(11) it is formed by insulating paper.
5. a kind of cable with monitoring line according to claim 1, it is characterised in that: the first monitoring insulating layer
(10) it is formed by insulating paper.
6. a kind of according to claim 1, cable with monitoring line described in 2,3,4 or 5, it is characterised in that: the monitoring line
Group (8) is wrapped in inside cable using helical structure.
7. a kind of according to claim 1, cable with monitoring line described in 2,3,4 or 5, it is characterised in that: the monitoring line
Group (8) is arranged between oversheath (7) and armor (6).
8. a kind of according to claim 1, cable with monitoring line described in 2,3,4 or 5, it is characterised in that: the monitoring line
Group (8) is arranged between cable core.
9. a kind of according to claim 1, cable with monitoring line described in 2,3,4 or 5, it is characterised in that: the monitoring line
Group (8) is two, and one is arranged between cable core, another is arranged between oversheath (7) and armor (6).
10. a kind of according to claim 1, cable with monitoring line described in 2,3,4 or 5, it is characterised in that: the conductor
It (9) is tinned copper conductor.
11. a kind of cable with monitoring line, it is characterised in that: have one or more settings identical inside the cable or
The monitoring line group (8) of different location, the monitoring line group (8) include two or more monitoring lines, and the monitoring line includes
Conductor (9) and monitoring insulating layer (13), the monitoring insulating layer (13) conductor (9) outside；It is set on the monitoring insulating layer (13)
It is equipped with multiple monitoring slots (12), the setting of the multiple monitoring slot (12) interval.
12. a kind of cable with monitoring line according to claim 11, it is characterised in that: monitoring line group (8)
Monitoring line is twisted together by a constant pitch spiral.
13. a kind of cable with monitoring line according to claim 11, it is characterised in that: the conductor (9) is tin plating
Copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775587.7U CN208596563U (en) | 2018-05-23 | 2018-05-23 | A kind of cable with monitoring line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820775587.7U CN208596563U (en) | 2018-05-23 | 2018-05-23 | A kind of cable with monitoring line |
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| Publication Number | Publication Date |
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| CN208596563U true CN208596563U (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820775587.7U Active CN208596563U (en) | 2018-05-23 | 2018-05-23 | A kind of cable with monitoring line |
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| CN (1) | CN208596563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470601A (en) * | 2018-05-23 | 2018-08-31 | 江苏中利集团股份有限公司 | A kind of cable with monitoring line |
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2018
- 2018-05-23 CN CN201820775587.7U patent/CN208596563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470601A (en) * | 2018-05-23 | 2018-08-31 | 江苏中利集团股份有限公司 | A kind of cable with monitoring line |
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