CN201402668Y - Lightning-proof power cable - Google Patents
Lightning-proof power cable Download PDFInfo
- Publication number
- CN201402668Y CN201402668Y CN2009201505830U CN200920150583U CN201402668Y CN 201402668 Y CN201402668 Y CN 201402668Y CN 2009201505830 U CN2009201505830 U CN 2009201505830U CN 200920150583 U CN200920150583 U CN 200920150583U CN 201402668 Y CN201402668 Y CN 201402668Y
- Authority
- CN
- China
- Prior art keywords
- lightning
- power cable
- proof power
- cable
- conductor
- 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
Links
Images
Classifications
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a lightning-proof power cable, comprising a cable core for transmitting power and a coating layer for coating the cable core, wherein the coating layer comprises a shielding layer for shielding the cable core, an outer belting layer for coating the shielding layer, an outer protective sleeve for coating the outer belting layer and a grounding layer arranged between thecable core and the shielding layer. The utility model is provided with the grounding layer so as to increase the lightning-proof capability of the power cable, even when the lightning occurs, the grounding layer conducts the lightning entering the cable into the ground, thus ensuring the safety of the power cable and base station equipment connecting the power cable.
Description
Technical field
The utility model relates to the electric wire technology, particularly a kind of can lightning protection and be suitable for the lightning-proof power cable that reinforced layer is arranged of outdoor use.
Background technology
Addressing mostly is spaciousness, highland or mountain area based on base station construction, with a varied topography and work under bad environment, the equipment of base station suffers the infringement of thunder and lightning weather easily, the cable of base station outdoor is especially low and directly be subjected to ultraviolet irradiation at the northern area winter temperature, easily aging and damaged, thus base station work influenced.And, certain shielding anti-interference should be arranged as the cable that communication base station uses, the electromagnetic field of guaranteeing itself does not cause other signals and disturbs and not by the interference of external electromagnetic field to cable core.
In addition, because cable might be struck by lightning,, will cause the heavy losses of communications facility in case the thunderbolt incident takes place.
Summary of the invention
The purpose of this utility model provide a kind of can lightning protection and be suitable for the lightning-proof power cable that reinforced layer is arranged of outdoor use,
In addition, the utility model also improves the intensity of cable by equipment reinforced layer on power cable, thereby satisfies the required special climate requirement of communication base station under the outdoor environment.
According to first aspect of the present utility model, the utility model is a kind of to have the lightning-proof power cable of reinforced layer to comprise:
The coating of the cable core of transferring electric power and the described cable core of lining;
Wherein, described coating comprises:
Shield the screen of described cable core;
Coat the outer belting layer of described screen;
Coat the oversheath of described outer belting layer; And
Be arranged on the ground plane between described cable core and the described screen.
The utility model is by being provided with the increase electric power anti-thunderbolt ability of cable of ground plane, and when promptly thunderbolt taking place, the thunder and lightning that ground plane moment will enter cable imports the earth, thereby guarantees the safety of power cable and the base station equipment that is connected power cable.
Described ground plane is configured to: by the oblique wrapped described cable core of bundle strand copper wire of stranded copper wire bundle strand, its lay of lapping is 18～28 times of described conductor assembly outer diameter.
Described ground plane can also be configured to coat the metal level and the wire netting of cable core.
Described ground plane can also be the ground connection outer conductor, its oblique wrapped described inner sheath 6, and its lay of lapping is 18～28 times of described conductor assembly outer diameter.
Wherein said screen adopts the wrapped described outer conductor of copper strips to form, and wrapped Duplication is more than 25%.
Wherein said cable core comprises: at least two thoroughly do away with the edge core; Coat the interior belting layer of described insulated wire cores; And the inner sheath that coats described interior belting layer.
Wherein said insulated wire cores comprises conductor and coats the insulating barrier of described conductor, and described insulated wire cores is 2～5.
In addition, between described insulated wire cores, be filled with the filler material,, improve the anti-pressure ability of cable core so that form solid cable core.
Wherein said oversheath adopts the TPO material to make; Described insulating barrier adopts polyolefine material to make; Described inner sheath employing has fire-retardant TPO material and makes; And belting layer all adopts polyester material to make with outer belting layer in described.
Wherein said conductor forms by stranded copper wire is stranded, and the cross-sectional area of described conductor is identical with the cross-sectional area of described ground connection outer conductor.
Compared with prior art, earth connection described in the utility model is rearranged by the oblique bag of stranded copper wire between cable core and screen, has effectively conducted instantaneous high pressure, avoids thunder and lightning that communication equipment is caused damage.And described earth connection is with the copper strips screen outward, and effectively the electromagnetic field of shielded type cable generation improves the serviceability of cable to the interference of other telecommunication cable signals.Described oversheath adopts cold-resistant low-smoke halogen-free polyolefin class material, its low smoke and zero halogen, environmental, and uvioresistant is also cold-resistant, therefore a kind of lightning-proof power cable with reinforced layer of the present utility model can satisfy communication base station in the abominable workplace operate as normal of environment, and its adaptive capacity to environment is strong.
Below in conjunction with accompanying drawing details of the present utility model is elaborated.
Description of drawings
Fig. 1 is the schematic diagram that lightning-proof power cable first embodiment of reinforced layer is arranged of the present utility model;
Fig. 2 is the schematic diagram that lightning-proof power cable second embodiment of reinforced layer is arranged of the present utility model.
Drawing reference numeral explanation: 1-insulated wire cores; The 11-conductor; The 12-insulating barrier; The 2-filler; Belting layer in the 3-; 4-ground plane or outer conductor; The outer belting layer of 5-; The 6-inner sheath; The 7-screen; The 8-oversheath; The 9-cable core.
Embodiment
Lightning-proof power cable of the present utility model is a kind of lightning protection and can strengthens cable intensity power cable.
Fig. 1 has shown first embodiment that the lightning-proof power cable of reinforced layer is arranged of the present utility model, and Fig. 2 has shown second embodiment of lightning-proof power cable of the present utility model.In first embodiment, lightning-proof power cable has two and thoroughly does away with edge core 1.In a second embodiment, lightning-proof power cable has three eradication edge cores 1.
Put it briefly, lightning-proof power cable of the present utility model comprises:
The coating of the cable core 9 of transferring electric power and the described cable core 9 of lining;
Wherein, described coating comprises:
Shield the screen 7 of described cable core 9;
Coat the outer belting layer 5 of described screen 7;
Coat the oversheath 8 of described outer belting layer 5; And
Be arranged on the ground plane 4 between described cable core 9 and the described screen 7.
Can adopt various ways to form ground plane 4,, perhaps utilize wire netting to form ground plane such as utilizing metal level to form ground plane.
The utility model preferentially selects to utilize bundle strand copper wire to form ground plane, just ground plane 4 is configured to: by the oblique wrapped described cable core 9 of bundle strand copper wire of stranded copper wire bundle strand, its lay of lapping is 18～28 times of described conductor assembly outer diameter.
Because ground plane is set in power cable, therefore increased the anti-thunderbolt ability of power cable, like this when thunderbolt takes place, ground plane moment just can import the earth rapidly with the thunder and lightning that enters cable, thereby guarantees the safety of power cable and the base station equipment that is connected power cable.
In addition, the utility model with outer belting layer 5 and the following interior belting layer 3 that will illustrate as reinforced layer, so that increase the intensity of cable.
More particularly, the lightning-proof power cable that provides of first embodiment shown in Figure 1 of the present utility model comprises:
Cover the cable core that is used for transferring electric power 9 of inner sheath 6 outward;
Shield the screen 7 of described cable core 9;
Coat the outer belting layer 5 of described screen 7;
Coat the oversheath 8 of described outer belting layer 5; And
Be arranged on the ground connection outer conductor 4 between described cable core 9 and the described screen 7.
Ground connection outer conductor 4 can be the bundle strand copper wire of single copper conductor or stranded copper wire bundle strand, and oblique wrapped described inner sheath 6, and its lay of lapping is 18～28 times of described conductor assembly outer diameter.
In theory, ground connection outer conductor 4 is ground connection in any place, but in actual conditions, ground connection outer conductor 4 has been preferably in people or unmanned machine room ground connection.Outer conductor 4 can effectively conduct instantaneous high pressure, thereby can avoid thunder and lightning that communication equipment is caused damage.
On the other hand, owing to the screen 7 direct wrapped institute outer conductors of making by copper strips 4, make screen 7 and outer conductor 4 connect into earthing conductor, thereby strengthened the ability that the utility model conducts instantaneous thunder and lightning high pressure.That is to say,, reduced to draw the resistivity of thunder earthing conductor greatly, thereby improved lightning protection effect owing to utilize screen 7 and outer conductor 4 these two earthing conductors to draw thunder.
Another characteristics of the present utility model are that oversheath 8 adopts the TPO material with low smoke and zero halogen characteristic, not only helps environmental protection, and cold-resistant and uvioresistant, thereby makes power cable of the present utility model be adapted at outdoor long-term the use.
As mentioned above, interior belting layer 3 can be strengthened the intensity of power cable.
Described insulated wire cores 1 comprises conductor 11 and coats the insulating barrier 12 of described conductor 11; Insulated wire cores 1 is generally 2.Owing to have the space between the insulated wire cores 1, its crushing resistance is weakened, the utility model is filled with the filler material 2 such as PP fiber or mineral wool rope between described insulated wire cores 1 for this reason, so that add the space between the real insulated wire cores 1, thus the compressive property of the cable that increases electric power.
In the actual cable production process, insulated wire cores 1 and filler material 2 twist together mutually.
Oversheath 7 adopts cold-resistant low-smoke halogen-free polyolefin class material to make, so that guarantee power cable operate as normal under low temperature environment.
The utility model second embodiment shown in Figure 2 and the difference of first embodiment only are that insulated wire cores 1 has three, and are Chinese character pin-shaped arrangement.Insulated wire cores 1 also can be a plurality of three, for example are five.
Of the present utility model between cable core and screen ground plane or ground connection outer conductor 4 can effectively conduct instantaneous high pressure, avoid thunder and lightning that communication equipment is caused damage.And described earth connection is with the copper strips screen outward, and effectively shielded type cable improves the serviceability of cable to the interference of other telecommunication cable signals.Described oversheath adopts cold-resistant low-smoke halogen-free polyolefin class material, its low smoke and zero halogen, environmental, and uvioresistant is also cold-resistant, therefore lightning-proof power cable of the present utility model can satisfy communication base station in the abominable workplace operate as normal of environment, and its adaptive capacity to environment is strong.
Although above the utility model is had been described in detail, the utility model is not limited thereto, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of being done according to the utility model principle all should be understood to fall into protection range of the present utility model.
Claims (10)
1, a kind of lightning-proof power cable that reinforced layer is arranged comprises:
The cable core of transferring electric power (9); And
The coating of described cable core (9) is covered;
It is characterized in that described coating comprises:
Shield the screen (7) of described cable core (9);
Coat the outer belting layer (5) of described screen (7);
Coat the oversheath (8) of described outer belting layer (5); And
Be arranged on the ground plane (4) between described cable core (9) and the described screen (7).
2, lightning-proof power cable according to claim 1 is characterized in that described ground plane (4) is configured to: by the bundle strand oblique wrapped described cable core of copper wire (9) of stranded copper wire bundle strand, its lay of lapping is 18～28 times of described conductor assembly outer diameter.
3, lightning-proof power cable according to claim 1 is characterized in that described ground plane (4) is the ground connection outer conductor, and its oblique wrapped described inner sheath (6), its lay of lapping are 18～28 times of described conductor assembly outer diameter.
4, lightning-proof power cable according to claim 1 is characterized in that described screen adopts the wrapped described outer conductor of copper strips (5) to form, and wrapped Duplication is more than 25%.
5, lightning-proof power cable according to claim 1 is characterized in that described cable core (9) comprising:
At least two thoroughly do away with edge core (1);
Coat the interior belting layer (3) of described insulated wire cores (1); And
Coat the inner sheath (6) of described interior belting layer (3).
6, lightning-proof power cable according to claim 5 is characterized in that described insulated wire cores (1) comprises the insulating barrier (12) of conductor (11) and the described conductor of coating (11).
7, lightning-proof power cable according to claim 6 is characterized in that described insulated wire cores (1) is 2～5.
8, lightning-proof power cable according to claim 7 is characterized in that being filled with the filler material between described insulated wire cores (1).
9, lightning-proof power cable according to claim 5 is characterized in that described oversheath (8) adopts the TPO material to make.
10, lightning-proof power cable according to claim 5 is characterized in that described interior belting layer (3) and outer belting layer (5) all adopt polyester material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201505830U CN201402668Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201505830U CN201402668Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402668Y true CN201402668Y (en) | 2010-02-10 |
Family
ID=41662468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201505830U Expired - Fee Related CN201402668Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402668Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290136A (en) * | 2011-06-09 | 2011-12-21 | 湖南金杯电缆有限公司 | Power cable with outer conductor |
| CN101887777B (en) * | 2009-05-11 | 2012-05-02 | 中利科技集团股份有限公司 | Lightning protection power cable with reinforced layer |
| CN107293363A (en) * | 2017-06-28 | 2017-10-24 | 代卫东 | A kind of high lightning protection tension communication cable of mechanical performance |
-
2009
- 2009-05-11 CN CN2009201505830U patent/CN201402668Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887777B (en) * | 2009-05-11 | 2012-05-02 | 中利科技集团股份有限公司 | Lightning protection power cable with reinforced layer |
| CN102290136A (en) * | 2011-06-09 | 2011-12-21 | 湖南金杯电缆有限公司 | Power cable with outer conductor |
| CN107293363A (en) * | 2017-06-28 | 2017-10-24 | 代卫东 | A kind of high lightning protection tension communication cable of mechanical performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101887777B (en) | Lightning protection power cable with reinforced layer | |
| CN101887776B (en) | Self-supporting lightning-proof power cable | |
| CN101887781B (en) | Self-supporting lightning-proof optical cable | |
| CN201673727U (en) | Armoured shielding type audio-frequency cable for ship and oceaneering | |
| CN202534423U (en) | Lightning-protection carbon fiber photoelectric composite conducting wire | |
| CN201402668Y (en) | Lightning-proof power cable | |
| CN201402678Y (en) | Lightning-proof optical cable | |
| CN101887782B (en) | Lightning-protection optical cable | |
| CN101887780B (en) | Multigroup lightning protection optical cable | |
| CN201408600Y (en) | Self-supporting type lightning protection power cable | |
| CN205656899U (en) | Compound environmental protection cable of multipurpose | |
| CN201408605Y (en) | Multi-group lightning protection optical cable | |
| CN201408606Y (en) | Self-supporting type lightning protection power cable | |
| CN210349422U (en) | High-pressure submarine cable long-distance landing structure | |
| CN208596565U (en) | A kind of electronic automobile-used high-performance fire-resistant wire and cable | |
| CN203366841U (en) | Environment-friendly type crosslinking polyethylene insulating, water-resistant, flame-retardant and shielding power cable | |
| CN201237936Y (en) | 35KV and below water-resistant cable | |
| CN206236441U (en) | A kind of weak-current cable | |
| CN202189612U (en) | Lightning protection water-blocking power cable | |
| CN217113873U (en) | Novel circular cable of insulating copper core polyvinyl chloride | |
| CN210925582U (en) | Rural power grids reforms transform and uses ultraviolet resistance aerial [ insulated ] cable | |
| CN103794273A (en) | Shielding reinforced type flat cable with high temperature resistance, high pressure resistance and tensile property | |
| CN204189509U (en) | Flame-proof damp-proof data cable | |
| CN110070962A (en) | Durable electric wire | |
| CN201820514U (en) | Cross-linked polyethylene insulated power cable used in coal mines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20140511 |