CN206833970U - A kind of lv power cable with protection copper strips - Google Patents
A kind of lv power cable with protection copper strips Download PDFInfo
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- CN206833970U CN206833970U CN201720518011.8U CN201720518011U CN206833970U CN 206833970 U CN206833970 U CN 206833970U CN 201720518011 U CN201720518011 U CN 201720518011U CN 206833970 U CN206833970 U CN 206833970U
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- copper strips
- protection copper
- cable
- insulating barrier
- power cable
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Abstract
The utility model provides a kind of lv power cable with protection copper strips, belong to power transmission technology field, including conductor, insulating barrier, gasket for packing, lapping layer, outer jacket and protection copper strips, the conductor is arranged within the insulating barrier, the insulating barrier, the gasket for packing are arranged within the lapping layer, the lapping layer is accommodated within the outer jacket, the protection copper strips is arranged between the lapping layer and the insulating barrier or the gasket for packing longitudinally through whole piece cable, the protection copper strips.The utility model passes through the longitudinally disposed one protection copper strips for running through whole piece cable in lv power cable, when finding that outer jacket breakage needs positioning, due to being provided with a protection copper strips in cable, and protection copper strips stable conductivity, cable fault instrument can using protect copper strips as loop carry out trouble point positioning, solve the problems, such as that non-armoured power cable can not position, and more accurately result can be obtained.
Description
Technical field
The utility model belongs to power transmission technology field, and in particular to a kind of low-voltage power electricity with protection copper strips
Cable.
Background technology
With the continuous input of power grid construction, power network scale constantly increases, particularly urban distribution network circuit, due to by circuit
Corridor and the limitation of urban, cable are carried out by the way of using entering laying.At present, power cable is laid generally with entering
For the mode such as poling is buried or cable duct is set up, influenceed by physical features, feelings under water for a long time occur compared with Multi sectional cable
Condition occurs.
Because cabling process environment is complicated, cable installation in pipe is taken first passes through laying-out pipeline with guide line, drags
Power cable head is used the devices such as guard, mechanical traction is carried out after end is fastened by band pull rope to hauling machine, the other end,
Due to a variety of causes, in practice of construction operating process, protective coverings of cable is inevitably caused scratch occur even damaged
Situation occur, the breaking point of discovery is carried out after conscientiously repairing in time, then will not produce shadow to the normal operation in cable later stage
Ring, but still can there are the possibility that outer jacket open defect point is not found in time, as the breaking point was run in the later stage
Cheng Zhong, the situation being immersed in water, water can be entered in cable sheath body, inherently cause the acceleration of insulated electro tree to produce
It is raw, cause great potential safety hazard to cable longtime running.
At present, during cable operation use, equipment department of power grid enterprises is generally spaced 3 years or so and cable can be carried out
Routine inspection, to ensure the safe operation of cable, in routine inspection, such as there are protective coverings of cable has breakage to determine
When position is searched, because lv power cable does not use steel-tape armouring, cause quick and precisely search substantially in real process
To trouble point, severe compromise is caused to cable operation.
Utility model content
In order to when protective coverings of cable has breakage to need positioning searching, can more accurately position damaged part
Position, technical scheme is used by the utility model：It is a kind of have protection copper strips lv power cable, including conductor, absolutely
Edge layer, gasket for packing, lapping layer, outer jacket and protection copper strips, the conductor are arranged within the insulating barrier, the insulating barrier,
The gasket for packing is arranged within the lapping layer, and the lapping layer is accommodated within the outer jacket, and the protection copper strips is indulged
It is arranged on to through whole piece cable, the protection copper strips between the lapping layer and the insulating barrier or the gasket for packing.
The utility model has the advantages that：
The utility model works as hair by the longitudinally disposed one protection copper strips for running through whole piece cable in lv power cable
When existing outer jacket breakage needs positioning, due to being provided with a protection copper strips in cable, and copper strips stable conductivity, cable are protected
Failure instrument can be using the positioning for protecting copper strips to carry out as loop trouble point, and solve that non-armoured power cable can not position asks
Topic, and more accurately result can be obtained.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of embodiment of the utility model.
Main element symbol description
| Conductor 01 | Insulating barrier 02 | Gasket for packing 03 |
| Lapping layer 04 | Protect copper strips 05 | Outer jacket 06 |
Following embodiment will further illustrate the utility model with reference to above-mentioned accompanying drawing.
Embodiment
The following examples can help those skilled in the art to be more fully understood the utility model, but cannot be with
Any mode limits the utility model.
Referring to Fig. 1, in the first embodiment of the present utility model, the lv power cable with protection copper strips
Institute is arranged on including conductor 01, insulating barrier 02, gasket for packing 03, lapping layer 04, protection copper strips 05 and outer jacket 06, the conductor 01
State within insulating barrier 02, the insulating barrier 02, the gasket for packing 03 are arranged within the lapping layer 04, the lapping layer 04 around
Bag is in the insulating barrier 02 or the outside of the gasket for packing 03, the insulating barrier 02 or the gasket for packing 03 and the lapping layer
The protection copper strips 05 longitudinally through whole piece cable is provided between 04, the lapping layer 04 is accommodated within outer jacket 06, described
With protection copper strips lv power cable be followed successively by from inside to outside conductor 01, insulating barrier 02, gasket for packing 03, protection copper strips 05,
Lapping layer 04, outer jacket 06.
Among the present embodiment, the lv power cable with protection copper strips includes four conductors 01 and four insulating barriers
02, each conductor 01 and insulating barrier 02 are combined into an insulated wire, four insulated wire concentric strandings.
Inventor has manufactured experimently 100 meters of protection copper strips power cable, if lettering " 0 " rice point is " A points ", lettering " 100 " rice
Point is " B points ", and in lettering " 30 " rice point by the people of outer jacket 06 to have cut a breach, the point is set to trouble point " C points ", by electricity
Cable immerses pond, and sheath damage testing experiment is carried out after 15 minutes.Ac voltage withstanding experiment is carried out from crosslinking pressure-resistant tester, will
Cable copper strip is connected with red folder positive pole, and black folder negative pole connects with aqueous phase, carries out voltage test, and voltage can not rise, and display sheath is broken
Damage.Sheath trouble point lookup is then carried out, sheath damage positioning, electric bridge one are carried out using PC36C digital display DCs resistance measuring instrument
End is connected using level clamp with cable " A points " copper strips, and the other end is placed in water after being connected using level clamp, actual measured amount
Resistance is (A-C) 0.1745 Ω；After the fixture of electric bridge " A points " is released, it is connected by the same manner with cable " B points " copper strips,
Actual measurement resistance is (B-C) 0.409 Ω；Because measurement data only makees calculating reference value, be identical environment temperature to (A-C) point and
(B-C) copper strips resistance value is measured, therefore environment temperature during measurement can be not considered.According to existing detection data, press
Following formula carries out trouble point calculating：
A points are away from C points distance=(A-C)/[(A-C)+(B-C)] * 100=0.1745/ (0.1745+0.409) * 100=
29.9m
B points are away from C points distance=(B-C)/[(A-C)+(B-C)] * 100=0.409/ (0.1745+0.409) * 100=
70.1m
According to measured result, it is calculated by formula, position of failure point " C points " distance " A points " is 29.9 meters, with actual event
30 meters of positions of barrier point are very close, and error is only 0.3% deviation.
The utility model by lv power cable longitudinally disposed one run through whole piece cable protection copper strips 05, when
It was found that when the breakage of outer jacket 06 needs positioning, due to being provided with a protection copper strips 05 in cable, and the electric conductivity of copper strips 05 is protected
Stable, cable fault instrument can solve non-armoured power cable using positioning of the copper strips 05 as loop progress trouble point is protected
The problem of can not positioning, and more accurately result can be obtained.
Described above is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to
Patent claim of the present utility model, the equal change or modification completed under the technical spirit suggested by all the utility model
Change, all should belong to the utility model and cover the scope of the claims.
Claims (3)
1. a kind of lv power cable with protection copper strips, including conductor, insulating barrier, gasket for packing, lapping layer, outer jacket, institute
State conductor to be arranged within the insulating barrier, the insulating barrier, the gasket for packing are arranged within the lapping layer, described wrapped
Layer is accommodated within the outer jacket, it is characterised in that it also includes：
Protect copper strips, the protection copper strips longitudinally through whole piece cable, the protection copper strips be arranged on the lapping layer with it is described
Between insulating barrier or the gasket for packing.
2. the lv power cable with protection copper strips as claimed in claim 1, it is characterised in that：It is described that there is protection copper strips
Lv power cable be followed successively by from inside to outside conductor, insulating barrier, gasket for packing, protection copper strips, lapping layer, outer jacket.
3. the lv power cable with protection copper strips as claimed in claim 2, it is characterised in that：It is described that there is protection copper strips
Lv power cable include four conductors and four insulating barriers, each conductor and insulating barrier are combined into an insulated wire, and four insulated wires are same
The heart is twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518011.8U CN206833970U (en) | 2017-05-11 | 2017-05-11 | A kind of lv power cable with protection copper strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518011.8U CN206833970U (en) | 2017-05-11 | 2017-05-11 | A kind of lv power cable with protection copper strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206833970U true CN206833970U (en) | 2018-01-02 |
Family
ID=60771340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720518011.8U Active CN206833970U (en) | 2017-05-11 | 2017-05-11 | A kind of lv power cable with protection copper strips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206833970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995467A (en) * | 2024-04-03 | 2024-05-07 | 广州岭南电缆股份有限公司 | Environment-friendly rat-proof termite-proof ultra-high voltage intelligent cable |
| CN117995467B (en) * | 2024-04-03 | 2024-06-04 | 广州岭南电缆股份有限公司 | Environment-friendly rat-proof termite-proof ultra-high voltage intelligent cable |
-
2017
- 2017-05-11 CN CN201720518011.8U patent/CN206833970U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995467A (en) * | 2024-04-03 | 2024-05-07 | 广州岭南电缆股份有限公司 | Environment-friendly rat-proof termite-proof ultra-high voltage intelligent cable |
| CN117995467B (en) * | 2024-04-03 | 2024-06-04 | 广州岭南电缆股份有限公司 | Environment-friendly rat-proof termite-proof ultra-high voltage intelligent cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low-voltage power cable with protective copper tape Effective date of registration: 20220811 Granted publication date: 20180102 Pledgee: China Construction Bank Corporation Limited Wuxiang Sub-branch in Nanning Area, Guangxi Pilot Free Trade Zone Pledgor: GUANGXI ZONGLAN CABLE GROUP CO.,LTD. Registration number: Y2022450000132 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |