CN202189612U - Lightning protection water-blocking power cable - Google Patents
Lightning protection water-blocking power cable Download PDFInfo
- Publication number
- CN202189612U CN202189612U CN2011202950890U CN201120295089U CN202189612U CN 202189612 U CN202189612 U CN 202189612U CN 2011202950890 U CN2011202950890 U CN 2011202950890U CN 201120295089 U CN201120295089 U CN 201120295089U CN 202189612 U CN202189612 U CN 202189612U
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- lightning protection
- power cable
- cable
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Abstract
The utility model discloses a lightning protection water-blocking power cable, comprising a plurality of cable cores. An inner taping layer, an inner sheath, a grounding layer, a shielding layer, an outer water-blocking layer, an outer taping layer and an outer sheath are wrapped on the outsides of the cable cores orderly, and water-blocking powder is filled between the inner taping layer and the cable cores. In the lightning protection water-blocking power cable, the grounding layer is arranged between the inner sheath and the shielding layer, so that an instantaneous high pressure is conducted effectively, and the damage of the lighting to a communication device is avoided; and the water-blocking powder is filled between the inner taping layer and the cable cores, and the outer water-blocking layer is wrapped on the outside of the shielding layer, so that the lightning protection water-blocking power cable has a dual water-blocking function, and has the advantages of simple structure, low cost and high safety and reliability.
Description
Technical field
The utility model relates to a kind of power cable, particularly relates to a kind of lightning protection water-resistant power cable that is applicable to outdoor environment.
Background technology
Power cable is the cable that is used to transmit and distribute electric energy, and in power circuit, the shared proportion of cable increases just gradually, power cable be master in electric power system in circuit in order to transmission with distribute the cable product of high-power electric energy.
At present, many power cables are set up in outdoor environment, work under bad environment; The oversheath easy ageing of under the daylight of being everlasting, being exposed to the sun if run into thunderstorm weather, might be struck by lightning; Whole electrical network is caused serious damage, and make cable inner inlet, general power cable all will take waterproof measure for the oversheath that prevents wears out; The space that traditional cable generally is employed in the cable goes out to fill a large amount of waterproofing rope, and the price of waterproofing rope is comparatively expensive, causes the cost of power cable higher.
The utility model content
The purpose of the utility model is to provide a kind of lightning protection water-resistant power cable, and it has simple in structure, the characteristics that cost is low and security reliability is high.
The purpose of the utility model is to realize through following technical scheme:
A kind of lightning protection water-resistant power cable, it comprises some cable cores and the coating that coats cable core, wherein; Said coating comprises the interior belting layer that coats cable core; Be filled with water-proofing powder between belting layer and the cable core in said, and belting layer is coated with inner sheath in said, said inner sheath is coated with screen; Be provided with ground plane between said inner sheath and the screen, said screen is coated with outer water blocking layer, outer belting layer and oversheath outward successively.
Preferably, said cable core is set to three, and it comprises conductor and is coated on the outer insulating barrier of conductor.
Preferably, said ground plane is for the bundle strand copper wire of stranded copper wire bundle strand, and is oblique wrapped outside inner sheath.
Preferably, said outer water blocking layer is the waterproofing rope that is filled between screen and the outer belting layer.
The beneficial effect of the utility model is that said lightning protection water-resistant power cable is provided with ground plane between inner sheath and screen, conducted instantaneous high pressure effectively; The infringement of having avoided thunder and lightning that communication equipment is caused; And being filled with water-proofing powder between interior belting layer and the cable core, screen is coated with outer water blocking layer, has dual water stop function; Have simple in structure, the advantage that cost is low and security reliability is high.
Description of drawings
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 is the profile of the utility model lightning protection water-resistant power cable.
Among the figure:
1, conductor; 2, insulating barrier; 3, interior belting layer; 4, water-proofing powder; 5, inner sheath; 6, ground plane; 7, screen; 8, outer water blocking layer; 9, outer belting layer; 10, oversheath.
Embodiment
See also shown in Figure 1ly, Fig. 1 is the profile of the utility model lightning protection water-resistant power cable.In present embodiment; A kind of lightning protection water-resistant power cable, it comprises three cable cores, said cable core comprises conductor 1 and is coated on the insulating barrier 2 outside the conductor 1; Said cable core is coated with interior belting layer 3; Be filled with water-proofing powder 4 between belting layer 3 and the cable core in said, and belting layer 3 is coated with inner sheath 5 in said, said inner sheath 5 is coated with screen 7; Be provided with ground plane 6 between said inner sheath 5 and the screen 7, said screen 7 is outer to be coated with outer water blocking layer 8, outer belting layer 9 and oversheath 10 successively.
Said ground plane 6 is for the bundle strand copper wire of stranded copper wire bundle strand, and is oblique wrapped outside inner sheath 5.
Said outer water blocking layer 8 is for being filled in the waterproofing rope between screen 7 and the outer belting layer 9.
Said screen 7 adopts the copper strips of 0.2mm wrapped outside ground plane 6; Wrapped Duplication is more than 30%; Screen 7 not only can shielded conductor 1 electromagnetic field that produces itself in order to avoid to the interference of other telecommunication cable signals, but also can shield the interference of external electromagnetic field to conductor 1.
Above-mentioned lightning protection water-resistant power cable is provided with ground plane 6 between inner sheath 5 and screen 7, make screen 7 and ground plane 6 connect into earthing conductor, thereby strengthened the ability of conducting instantaneous thunder and lightning high pressure; That is to say, utilize screen 7 and 6 two earthing conductors of ground plane to draw thunder, conducted instantaneous high pressure effectively; The infringement of having avoided thunder and lightning that communication equipment is caused; And being filled with water-proofing powder 4 between interior belting layer 3 and the cable core, screen 7 is coated with outer water blocking layer 8, has dual water stop function; Have simple in structure, the advantage that cost is low and security reliability is high.
Above embodiment has just set forth the basic principle and the characteristic of the utility model, can change with the change of the cross sectional shape of number that cable core is set and cable core.The utility model is not limited by above-mentioned example, and under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various variations and change, and these variations and change all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (4)
1. lightning protection water-resistant power cable; It comprises some cable cores and the coating that coats cable core; It is characterized in that: said coating comprises the interior belting layer (3) that coats cable core; Be filled with water-proofing powder (4) between belting layer (3) and the cable core in said, and belting layer (3) is coated with inner sheath (5) in said, said inner sheath (5) is coated with screen (7); Be provided with ground plane (6) between said inner sheath (5) and the screen (7), outer outer water blocking layer (8), outer belting layer (9) and the oversheath (10) of being coated with successively of said screen (7).
2. lightning protection water-resistant power cable according to claim 1 is characterized in that: said cable core is set to three, and it comprises conductor (1) and is coated on the outer insulating barrier (2) of conductor (1).
3. lightning protection water-resistant power cable according to claim 1 is characterized in that: said ground plane (6) is for the bundle strand copper wire of stranded copper wire bundle strand, and is oblique wrapped outside inner sheath (5).
4. lightning protection water-resistant power cable according to claim 1 is characterized in that: said outer water blocking layer (8) is for being filled in the waterproofing rope between screen (7) and the outer belting layer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202950890U CN202189612U (en) | 2011-08-15 | 2011-08-15 | Lightning protection water-blocking power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202950890U CN202189612U (en) | 2011-08-15 | 2011-08-15 | Lightning protection water-blocking power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189612U true CN202189612U (en) | 2012-04-11 |
Family
ID=45921048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202950890U Expired - Fee Related CN202189612U (en) | 2011-08-15 | 2011-08-15 | Lightning protection water-blocking power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915190A (en) * | 2014-03-10 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free waterproof double-shielded control cable resistant to high temperature |
-
2011
- 2011-08-15 CN CN2011202950890U patent/CN202189612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915190A (en) * | 2014-03-10 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free waterproof double-shielded control cable resistant to high temperature |
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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: 20120411 Termination date: 20120815 |