CN101887782B - Lightning-protection optical cable - Google Patents
Lightning-protection optical cable Download PDFInfo
- Publication number
- CN101887782B CN101887782B CN200910140718XA CN200910140718A CN101887782B CN 101887782 B CN101887782 B CN 101887782B CN 200910140718X A CN200910140718X A CN 200910140718XA CN 200910140718 A CN200910140718 A CN 200910140718A CN 101887782 B CN101887782 B CN 101887782B
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- lightning
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- screen
- optical cable
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- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 40
- 239000004020 conductor Substances 0.000 claims description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 abstract 4
- 239000011247 coating layer Substances 0.000 abstract 2
- 230000002452 interceptive effect Effects 0.000 abstract 2
- 239000000779 smoke Substances 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 6
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The invention discloses a lightning-protection optical cable comprising a cable core and a coating layer, wherein the cable core is used for transmitting optical signals and electric power; and the coating layer comprises a shielding layer for shielding the cable core, an outer sheath for covering the shielding layer, and a grounding layer arranged between the cable core and the shielding layer. In the invention, the lightning-protection optical cable can prevent lightning from damaging communication equipment, and effectively shield an electromagnetic field generated by the cable from interfering other communication cable signals and an outer electromagnetic field from interfering the cable.
Description
Technical field
The present invention relates to the electric wire technology, particularly a kind of can lightning protection and the lightning-proof optical cable of transmitting optical signal and electric power.
Background technology
Mostly addressing 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 receive ultraviolet irradiation at the northern area winter temperature, is prone to agingly and damaged, works thereby influence the base station.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.
In addition, communication base station need use cable and optical cable to transmit electric power and signal of communication respectively at present, not only lays trouble, and has increased the expense of communication base station use cable.
Summary of the invention
The purpose of this invention is to provide a kind of can lightning protection and the lightning-proof optical cable of transmission light, the signal of telecommunication.
Lightning-proof optical cable of the present invention can also satisfy the required special climate requirement of communication base station of working out of doors.
According to first aspect present invention, above-mentioned lightning-proof optical cable comprises:
The cable core of transmitting optical signal and electric power; And
The coating of said cable core is covered;
Wherein, said coating comprises:
Shield the screen of said cable core;
Coat the oversheath of said screen; With
Be arranged on the ground plane between said cable core and the said screen.
Wherein said ground plane is configured to: by the oblique wrapped said cable core of bundle strand copper wire of stranded copper wire bundle strand, its lay of lapping is 18～28 times of said conductor assembly outer diameter.
According to second aspect present invention, above-mentioned lightning-proof optical cable comprises:
Cover the cable core that is used for transferring electric power and light signal of inner sheath outward;
Be used to shield the screen of said cable core;
Coat the oversheath of said screen; And
Be arranged on the ground connection outer conductor between said inner sheath and the said screen.
Wherein said ground connection outer conductor is the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped said inner sheath, and its lay of lapping is 18～28 times of said external diameter.
In aspect above-mentioned first and second, said cable core comprises:
At least two insulated cores;
At least one fiber unit; And
Coat the inner sheath of said insulated wire cores and fiber unit.
Wherein said fiber unit comprises: tight tube fiber; Reinforcement; Strengthen steel core; And the protective layer that coats said tight tube fiber, reinforcement and said reinforcement steel core; Wherein said tight tube fiber and said reinforcement are stranded on the said reinforcement steel core that is positioned at the center.
As selection, said fiber unit comprises: a plurality of tight tube fibers; Strengthen steel core; And the protective layer that coats said tight tube fiber and said reinforcement steel core; Wherein said a plurality of tight tube fiber is stranded on the said reinforcement steel core that is positioned at the center.
Wherein said screen adopts the wrapped said outer conductor of copper strips to form, and wrapped Duplication is more than 25%.
Wherein said insulated wire cores comprises conductor and the insulating barrier that coats said conductor, and said insulating barrier adopts polyolefine material.
Wherein said oversheath adopts the TPO material to process.
Screen of the present invention can make cable obtain electromagnetism antijamming capability preferably.
The insulating barrier of insulated wire cores of the present invention, inner sheath adopt low-smoke halogen-free polyolefin class material, have flame-proof environmental protection property.
Oversheath of the present invention adopts cold-resistant low-smoke halogen-free polyolefin class material, can guarantee cable operate as normal under low temperature environment.
The wrapped cable of the polyester material with environmental-protecting performance is all adopted in the inboard of the inner sheath of cable core of the present invention and the oversheath of optical cable.
In addition, the present invention also fills the packing material such as PP fiber or mineral wool rope with feature of environmental protection in cable core.
Compared with prior art, the outer conductor that plays the earth connection effect according to the invention is rearranged by the oblique bag of stranded copper wire between inner sheath and screen, has effectively conducted instantaneous high pressure, avoids thunder and lightning that communication equipment is caused damage.And said outer conductor is with the copper strips screen outward, and effectively the electromagnetic field that produces of shielded type cable is to the interference of other telecommunication cable signals, and external electromagnetic field is to the interference to cable of cable.Having added in cable inside has the fiber unit of strengthening steel core, has improved the ability of the anti-mechanical stretch of optical cable part, and and need not separately that erecting optical cables solves the needs of base station, alleviate laid down cost.Said oversheath adopts cold-resistant low-smoke halogen-free polyolefin class material, and its low smoke and zero halogen is environmental; And uvioresistant is also cold-resistant, and therefore a kind of lightning-proof optical cable of the present invention can satisfy communication base station in the abominable workplace operate as normal of environment, and its adaptive capacity to environment is strong; Many performances, low cost.
Below in conjunction with accompanying drawing details of the present invention is specifically described.
Description of drawings
Fig. 1 is the sketch map that shows lightning-proof optical cable first embodiment of the present invention; And
Fig. 2 is the sketch map that shows lightning-proof optical cable second embodiment of the present invention.
Drawing reference numeral explanation: 1-light unit; The 11-tight tube fiber; The 12-reinforcement; 13-strengthens steel core; The 14-protective layer; The 2-insulated wire cores; The 21-conductor; The 22-insulating barrier; 3-cable core filler; The 4-inner sheath; 5-ground plane or outer conductor; The 6-screen; The 7-oversheath; The 9-cable core.
Embodiment
Lightning-proof optical cable of the present invention is a kind of optical cable of lightning protection, in other words conj.or perhaps a kind of lightning protection and the optical cable of transmitting optical signal and the signal of telecommunication simultaneously.
Fig. 1 has shown lightning-proof optical cable first embodiment of the present invention, and Fig. 2 has shown lightning-proof optical cable second embodiment of the present invention.In first embodiment, the fiber unit 1 of lightning-proof optical cable is provided with reinforcement 12.In a second embodiment, the fiber unit 1 of lightning-proof optical cable is not established reinforcement 12.
Put it briefly, lightning-proof optical cable of the present invention comprises: the cable core 9 of transmitting optical signal and electric power and the coating of lining cable core 9, and wherein said coating comprises:
Shield the screen 6 of said cable core 9;
Coat the oversheath 7 of said screen 6; And
Be arranged on the ground plane 5 that is used for lightning protection between said cable core 9 and the said screen 6.
In specific embodiment illustrated in figures 1 and 2, lightning-proof optical cable of the present invention comprises:
Cover the cable core 9 of inner sheath 4 outward.
Be used to shield the screen 6 of said cable core 9, this screen 6 not only can shield electromagnetic fields that cable core 9 itself produces in order to avoid to the interference of other telecommunication cable signal, but also can shield the interference of extraneous electromagnetic field to cable core 9; With
Coat the oversheath 7 of said screen 6, oversheath 7 adopts the TPO material with low smoke and zero halogen characteristic, not only helps environmental protection, and cold-resistant and uvioresistant.
An important feature of the present invention is also to comprise: be arranged on the ground connection outer conductor 5 between said inner sheath 4 and the said screen 6.
In theory, ground connection outer conductor 5 is ground connection in any place, but in actual conditions, ground connection outer conductor 5 has been preferably in people or unmanned machine room ground connection.Outer conductor 5 can effectively conduct instantaneous high pressure, thereby can avoid thunder and lightning that communication equipment is caused damage.
Ground connection outer conductor 5 can be the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped said inner sheath 4, and for example the wrapped inner sheath 4 of left-hand tiltedly wraps so that on inner sheath 4, form stranded copper wire.The lay of lapping of ground connection outer conductor 5 is 18～28 times of said external diameter preferably.
In first embodiment shown in Figure 1, cable core 9 comprises: at least two insulated cores 2, for example two; At least one fiber unit 1, for example one; And the inner sheath 4 that coats said insulated wire cores 2 and fiber unit 1.
Characteristics of the present invention are, fiber unit 1 is set in cable core 9, need not so separately that erecting optical cables solves the communication needs of base station, and can alleviate laid down cost.
In fiber unit 1, adding reinforcement steel core 13 is characteristics of the present invention, and it can improve the ability of the anti-mechanical stretch of optical cable part.
The conductor 21 of insulated wire cores of the present invention also can be the bundle strand copper wire by stranded copper wire bundle strand.For the ease of making, the conductor 2 of insulated wire cores is preferably identical with the line of ground connection outer conductor 5 footpath.
On the other hand, owing to the screen 6 direct wrapped institute outer conductors of processing by copper strips 5, make screen 6 and outer conductor 5 connect into earthing conductor, thereby strengthened the ability that instantaneous thunder and lightning high pressure is conducted in the present invention.That is to say,, reduced to draw the resistivity of thunder earthing conductor greatly, thereby improved lightning protection effect owing to utilize screen 6 and outer conductor 5 these two earthing conductors to draw thunder.
In addition, insulating barrier of the present invention 22, inner sheath 4 all can adopt low-smoke halogen-free polyolefin class material, have flame-proof environmental protection property.
The wrapped cable of polyester material with environmental-protecting performance is adopted in inboard at inner sheath 4 and oversheath 7.
In order to strengthen the intensity of cable core 9, in cable core 9, can fill packing material 3 such as PP fiber or mineral wool rope.
In second embodiment shown in Figure 2, fiber unit 1 comprises: a plurality of tight tube fibers 11, for example 4 shown in Fig. 2; Strengthen steel core 13; And the protective layer 14 that coats said tight tube fiber 11 and said reinforcement steel core 13; Wherein a plurality of tight tube fibers 11 are stranded on the said reinforcement steel core 13 that is positioned at the center.With respect to first embodiment, second embodiment can increase the ability (capacity) of optical communication.
Other part of second embodiment is identical with first embodiment.
Although preceding text specify the present invention, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all are to be understood that to falling into protection scope of the present invention.
Claims (7)
1. lightning-proof optical cable comprises:
The cable core of transmitting optical signal and electric power (9); And
The coating of said cable core (9) is covered;
Wherein, said coating comprises:
Shield the ground shield (6) of said cable core (9);
Coat the oversheath (7) of said screen (6); With
Be arranged on the ground plane (5) that is used for lightning protection between said cable core (9) and the said screen (6);
Wherein, said ground plane (5) is configured to: by the bundle strand oblique wrapped said cable core of copper wire (9) of stranded copper wire bundle strand, its lay of lapping is 18～28 times of said conductor assembly outer diameter;
Wherein, said screen (6) adopts the wrapped said ground plane of copper strips (5), and wrapped Duplication is more than 25%;
Wherein, ground plane (5) causes damage to communication equipment to avoid thunder and lightning in that people or unmanned machine room ground connection are arranged.
2. lightning-proof optical cable comprises:
Cover the cable core that is used for transferring electric power and light signal (9) of inner sheath (4) outward;
Shield the ground shield (6) of said cable core (9);
Coat the oversheath (7) of said screen (6); And
Be arranged on and be used for the ground connection outer conductor (5) of lightning protection between said inner sheath (4) and the said screen (6);
Wherein, said ground connection outer conductor (5) is the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped said inner sheath (4), and its lay of lapping is 18～28 times of said conductor assembly outer diameter;
Wherein, said screen (6) adopts the wrapped said ground connection outer conductor of copper strips (5), and wrapped Duplication is more than 25%;
Wherein, ground connection outer conductor (5) causes damage to communication equipment to avoid thunder and lightning in that people or unmanned machine room ground connection are arranged.
3. lightning-proof optical cable according to claim 1 and 2, wherein said cable core (9) comprising:
At least two insulated cores (2);
At least one fiber unit (1); And
Coat the inner sheath (4) of said insulated wire cores (2) and fiber unit (1).
4. lightning-proof optical cable according to claim 3, wherein said fiber unit (1) comprising:
Tight tube fiber (11);
Reinforcement (12);
Strengthen steel core (13); And
Coat the protective layer (14) of said tight tube fiber (11), reinforcement (12) and said reinforcement steel core (13);
Wherein said tight tube fiber (11) and said reinforcement (12) are stranded on the said reinforcement steel core (13) that is positioned at the center.
5. lightning-proof optical cable according to claim 3, wherein said fiber unit (1) comprising:
A plurality of tight tube fibers (11);
Strengthen steel core (13); And
Coat the protective layer (14) of said tight tube fiber (11) and said reinforcement steel core (13);
Wherein said a plurality of tight tube fiber (11) is stranded on the said reinforcement steel core (13) that is positioned at the center.
6. lightning-proof optical cable according to claim 3, wherein said insulated wire cores (2) comprise conductor (21) and coat the insulating barrier (22) of said conductor (21) that said insulating barrier (22) adopts polyolefine material.
7. lightning-proof optical cable according to claim 3, wherein said oversheath (7) adopt the TPO material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910140718XA CN101887782B (en) | 2009-05-11 | 2009-05-11 | Lightning-protection optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910140718XA CN101887782B (en) | 2009-05-11 | 2009-05-11 | Lightning-protection optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101887782A CN101887782A (en) | 2010-11-17 |
| CN101887782B true CN101887782B (en) | 2012-02-15 |
Family
ID=43073644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910140718XA Active CN101887782B (en) | 2009-05-11 | 2009-05-11 | Lightning-protection optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887782B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043480A1 (en) * | 2013-09-26 | 2015-04-02 | 张�浩 | Optical cable and coaxial optical cable |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101261320B1 (en) * | 2011-05-03 | 2013-05-07 | 에쓰이에이치에프코리아 (주) | Optical electrical hybrid cable |
| CN103985475A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Lightning-protection optical power cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127500Y (en) * | 1992-07-01 | 1993-02-24 | 天津电子线缆公司 | Fan type strength optical cable |
| CN200986832Y (en) * | 2006-09-20 | 2007-12-05 | 青岛汉缆集团有限公司 | Photoelectric combination type subsea cable |
| CN201174272Y (en) * | 2008-07-31 | 2008-12-31 | 上海快鹿电线电缆有限公司 | Soft conductor flame-retardant protective sleeve shielded power cable |
| CN201402678Y (en) * | 2009-05-11 | 2010-02-10 | 中利科技集团股份有限公司 | Lightning-proof optical cable |
-
2009
- 2009-05-11 CN CN200910140718XA patent/CN101887782B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127500Y (en) * | 1992-07-01 | 1993-02-24 | 天津电子线缆公司 | Fan type strength optical cable |
| CN200986832Y (en) * | 2006-09-20 | 2007-12-05 | 青岛汉缆集团有限公司 | Photoelectric combination type subsea cable |
| CN201174272Y (en) * | 2008-07-31 | 2008-12-31 | 上海快鹿电线电缆有限公司 | Soft conductor flame-retardant protective sleeve shielded power cable |
| CN201402678Y (en) * | 2009-05-11 | 2010-02-10 | 中利科技集团股份有限公司 | Lightning-proof optical cable |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-75077A 2002.03.15 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043480A1 (en) * | 2013-09-26 | 2015-04-02 | 张�浩 | Optical cable and coaxial optical cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101887782A (en) | 2010-11-17 |
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Owner name: JIANGSU CHANGFEI ZHONGLI OPTICAL FIBRE + OPTICAL C Free format text: FORMER OWNER: ZHONGLI SCIENCE + TECHNOLOGY GROUP CO., LTD. Effective date: 20150409 |
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Effective date of registration: 20150409 Address after: 215542 Changshou City, Guangdong Province, Chang Kun Industrial Park, Suzhou Road, No. 1 li Patentee after: Jiangsu Changfei Zhongli Optical Fibre & Optical Cable Co., Ltd. Address before: 215542 Changshou City Southeast Economic Development Zone, Jiangsu Patentee before: Zhongli Science & Technology Group Co., Ltd. |
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Effective date of registration: 20170418 Address after: 215542 Changshu Southeast Economic Development Zone, Jiangsu Patentee after: Jiangsu Zhongli group Limited by Share Ltd Address before: 215542 Changshou City, Guangdong Province, Chang Kun Industrial Park, Suzhou Road, No. 1 li Patentee before: Jiangsu Changfei Zhongli Optical Fibre & Optical Cable Co., Ltd. |
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Effective date of registration: 20180213 Address after: 215542 Southeast Economic Development Zone, Changshu, Suzhou, Jiangsu Co-patentee after: Jiangsu Zhongli Electronic Information Technology Co., Ltd. Patentee after: Jiangsu Zhongli group Limited by Share Ltd Co-patentee after: Changzhou Marine Cable Co., Ltd. Co-patentee after: Changshu Zhonglian Photoelectricity New Stuff Co.,Ltd. Co-patentee after: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY CO., LTD. Address before: 215542 Changshu Southeast Economic Development Zone, Jiangsu Patentee before: Jiangsu Zhongli group Limited by Share Ltd |
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