CN201667250U - Waterproof spiral buried cable with medium voltage - Google Patents
Waterproof spiral buried cable with medium voltage Download PDFInfo
- Publication number
- CN201667250U CN201667250U CN2010201287913U CN201020128791U CN201667250U CN 201667250 U CN201667250 U CN 201667250U CN 2010201287913 U CN2010201287913 U CN 2010201287913U CN 201020128791 U CN201020128791 U CN 201020128791U CN 201667250 U CN201667250 U CN 201667250U
- Authority
- CN
- China
- Prior art keywords
- layer
- waterproof
- semiconductor
- medium voltage
- conductive core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a waterproof spiral buried cable with medium voltage, which is a multicore cable and comprises a conductive core wire, an insulating cover and an outer sheath. An inner shielding layer is arranged between the conductive core wire and the insulating cover and an outer shielding layer is arranged between the insulating cover and the outer sheath. A semiconductor waterproof layer is arranged outside the outer shielding layer and an aluminum plastic composite belt further coats the semiconductor waterproof layer vertically. In moist environment, the semiconductor waterproof layer can expand rapidly to realize waterproof purpose, improve safety of power utilization to a great extent and prevent the puncture of the insulating layer among the multicore cables. Therefore, the waterproof spiral buried cable with medium voltage has the advantages of good shielding effect, high safety and adaptability to moist environment.
Description
Technical field
The utility model relates to a kind of cable, specifically is that a kind of being applicable to pressed the spiral underground cable in the waterproof of using in the buried transmission line.
Background technology
The middle pressure underground cable of prior art generally is provided with the semiconductor internal shield between conductive core line and insulating barrier, avoid the partial discharge between conductor and the insulating barrier; The semiconductor outer shielding layer is set between insulating barrier and oversheath, avoids the caused partial discharge in gap between insulating barrier and the oversheath; Said structure is the influence of electric field shielding fully, and the puncture of insulating barrier between heart yearn takes place easily.In addition, the existing middle underground cable of pressing does not have water blocking layer, and the easier electric current that causes punctures in wet environment, exists the defective of poor stability.
Summary of the invention
The purpose of this utility model is the defective at prior art, and it is good to propose a kind of shield effectiveness, and the security performance height is suitable for and presses the spiral underground cable in the waterproof of using in the wet environment.
The purpose of this utility model is achieved in that presses the spiral underground cable in the waterproof of the present utility model, it is a kind of multicore cable, comprise conductive core line, insulating case and oversheath, between conductive core line and insulating case, internal shield is arranged, between insulating case and oversheath, outer shielding layer is arranged, it is characterized in that the layer of semiconductor water blocking layer is arranged outside outer shielding layer, the also vertical layer of aluminum plastic composite strip that wrapped outside the semiconductor water blocking layer.
Press the spiral underground cable in the waterproof of the present utility model, because the layer of semiconductor water blocking layer is arranged outside outer shielding layer, the also vertical outward layer of aluminum plastic composite strip that wrapped of semiconductor water blocking layer, in a humid environment, the semiconductor water blocking layer can sharply expand, reach the purpose that blocks water, significantly improved the fail safe of electricity consumption, effectively prevent the puncture of insulating barrier between the multicore cable.Therefore, the utlity model has the characteristics that shield effectiveness is good, safe, be fit to wet environment.
Description of drawings
Fig. 1 is the structural representation of pressing the spiral underground cable in the waterproof of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing:
As shown in Figure 1, press the spiral underground cable in the waterproof of the present utility model, it is a kind of multicore cable, comprise conductive core line 1, insulating case 3 and oversheath 7, between conductive core line 1 and insulating case 3, internal shield 2 is arranged, between insulating case 3 and oversheath 7, outer shielding layer 4 is arranged, it is characterized in that layer of semiconductor water blocking layer 5 is arranged outside outer shielding layer 4, the also vertical layer of aluminum plastic composite strip 6 that wrapped outside semiconductor water blocking layer 5.
Claims (1)
1. press the spiral underground cable in a waterproof, it is a kind of multicore cable, comprise conductive core line (1), insulating case (3) and oversheath (7), between conductive core line (1) and insulating case (3), internal shield (2) is arranged, between insulating case (3) and oversheath (7), outer shielding layer (4) is arranged, it is characterized in that layer of semiconductor water blocking layer (5) is arranged outside outer shielding layer (4), the also vertical layer of aluminum plastic composite strip (6) that wrapped outside semiconductor water blocking layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201287913U CN201667250U (en) | 2010-03-12 | 2010-03-12 | Waterproof spiral buried cable with medium voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201287913U CN201667250U (en) | 2010-03-12 | 2010-03-12 | Waterproof spiral buried cable with medium voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667250U true CN201667250U (en) | 2010-12-08 |
Family
ID=43268212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201287913U Expired - Fee Related CN201667250U (en) | 2010-03-12 | 2010-03-12 | Waterproof spiral buried cable with medium voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201667250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360616A (en) * | 2011-10-14 | 2012-02-22 | 河北华通线缆集团有限公司 | Large-sectional rubber filled waterproof power cable |
-
2010
- 2010-03-12 CN CN2010201287913U patent/CN201667250U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360616A (en) * | 2011-10-14 | 2012-02-22 | 河北华通线缆集团有限公司 | Large-sectional rubber filled waterproof power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20160312 |