CN201402678Y - Lightning-proof optical cable - Google Patents
Lightning-proof optical cable Download PDFInfo
- Publication number
- CN201402678Y CN201402678Y CN2009201505826U CN200920150582U CN201402678Y CN 201402678 Y CN201402678 Y CN 201402678Y CN 2009201505826 U CN2009201505826 U CN 2009201505826U CN 200920150582 U CN200920150582 U CN 200920150582U CN 201402678 Y CN201402678 Y CN 201402678Y
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- lightning
- optical cable
- core
- proof optical
- cable
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Abstract
The utility model discloses a lightning-proof optical cable, comprising a cable core for transmitting optical signals and 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 protective sleeve for coating the shielding layer and a grounding layer arranged between the cable core and the shielding layer. The lightning-proof optical cable can avoid the lightning from causing damage to communication equipment, and can effectively shield the interference of the electric magnetic field generated by the cable to other communication cable signals and the interference of the outer electric magnetic field to the cable.
Description
Technical field
The utility model 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
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.
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 utility model 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 utility model can also satisfy the required special climate requirement of communication base station of working out of doors.
According to first aspect, lightning-proof optical cable of the present utility model comprises:
The cable core of transmitting optical signal and electric power; And
The coating of described cable core is covered;
Wherein, described coating comprises:
Shield the screen of described cable core;
Coat the oversheath of described screen; With
Be arranged on the ground plane between described cable core and the described screen.
Wherein, 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.
As selection, described ground connection skin is the ground connection outer conductor, its oblique wrapped described inner sheath, and its lay of lapping is 18～28 times of described conductor assembly outer diameter.
Wherein, described cable core comprises: at least one eradication edge core; At least one fiber unit; And the inner sheath that coats described insulated wire cores and fiber unit.
Wherein, described fiber unit comprises: tight tube fiber; Reinforcement; Strengthen steel core; And the protective layer that coats described tight tube fiber, reinforcement and described reinforcement steel core; Wherein said tight tube fiber and described reinforcement are stranded on the described reinforcement steel core that is positioned at the center.
As selection, described fiber unit can comprise: a plurality of tight tube fibers; Strengthen steel core; And the protective layer that coats described tight tube fiber and described reinforcement steel core; Wherein said a plurality of tight tube fiber is stranded on the described reinforcement steel core that is positioned at the center.
Wherein said screen adopts the wrapped described outer conductor of copper strips to form, and wrapped Duplication is more than 25%.
Wherein said insulated wire cores comprises conductor and coats the insulating barrier of described conductor that described insulating barrier adopts polyolefine material.
Wherein, described oversheath adopts the TPO material to make.
Wherein, be filled with packing material within the described cable core.
Oversheath of the present utility model 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 utility model and the oversheath of optical cable.
In addition, the utility model is also filled 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 described in the utility model 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 described 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 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.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 optical cable of the present utility model can satisfy communication base station in the abominable workplace operate as normal of environment, its adaptive capacity to environment is strong, many performances, low cost.
Below in conjunction with accompanying drawing details of the present utility model is specifically described.
Description of drawings
Fig. 1 is the schematic diagram that shows lightning-proof optical cable first embodiment of the present utility model; And
Fig. 2 is the schematic diagram that shows lightning-proof optical cable second embodiment of the present utility model.
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 utility model 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 utility model, and Fig. 2 has shown lightning-proof optical cable second embodiment of the present utility model.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 utility model comprises: the coating of the cable core 9 of transmitting optical signal and electric power and lining cable core 9, and wherein said coating comprises:
Shield the screen 6 of described cable core 9;
Coat the oversheath 7 of described screen 6; And
Be arranged on the ground plane 5 that is used for lightning protection between described cable core 9 and the described screen 6.
In specific embodiment illustrated in figures 1 and 2, lightning-proof optical cable of the present utility model comprises:
Cover the cable core 9 of inner sheath 4 outward.
Be used to shield the screen 6 of described 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 external electromagnetic field to the cable of cable core 9; With
Coat the oversheath 7 of described 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 utility model is also to comprise: be arranged on the ground connection outer conductor 5 between described inner sheath 4 and the described 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 described inner sheath 4, and for example the wrapped inner sheath 4 of left-hand tiltedly wraps so that form stranded copper wire on inner sheath 4.The lay of lapping of ground connection outer conductor 5 is 18～28 times of described external diameter preferably.
In first embodiment shown in Figure 1, cable core 9 comprises: at least one eradication edge core 2, for example two; At least one fiber unit 1, for example one; And the inner sheath 4 that coats described insulated wire cores 2 and fiber unit 1.
Characteristics of the present utility model 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.
Adding reinforcement steel core 13 in fiber unit 1 is characteristics of the present utility model, 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 utility model 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 making by copper strips 5, make screen 6 and outer conductor 5 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 6 and outer conductor 5 these two earthing conductors to draw thunder.
Oversheath 7 of the present utility model adopts cold-resistant low-smoke halogen-free polyolefin class material to make, and its low smoke and zero halogen is not only environmental, and uvioresistant and cold-resistant, can guarantee cable operate as normal under low temperature environment.
In addition, insulating barrier 22 of the present utility model, inner sheath 4 all can adopt low-smoke halogen-free polyolefin class material, have flame-proof environmental protection.
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 described tight tube fiber 11 and described reinforcement steel core 13; Wherein a plurality of tight tube fibers 11 are stranded on the described 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.
The other parts of second embodiment are identical with first embodiment.
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 optical cable comprises:
The cable core of transmitting optical signal and electric power (9); And
The coating of described cable core (9) is covered;
It is characterized in that described coating comprises:
Shield the screen (6) of described cable core (9);
Coat the oversheath (7) of described screen (6); With
Be arranged on the ground plane (5) between described cable core (9) and the described screen (6).
2, lightning-proof optical cable according to claim 1 is characterized in that described ground plane (5) 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 optical cable according to claim 1 is characterized in that described ground connection skin (5) is the ground connection outer conductor, and its oblique wrapped described inner sheath (4), its lay of lapping are 18～28 times of described conductor assembly outer diameter.
4, lightning-proof optical cable according to claim 1 is characterized in that described cable core (9) comprising:
At least two thoroughly do away with edge core (2);
At least one fiber unit (1); And
Coat the inner sheath (4) of described insulated wire cores (2) and fiber unit (1).
5, lightning-proof optical cable according to claim 4 is characterized in that described fiber unit (1) comprising:
Tight tube fiber (11);
Reinforcement (12);
Strengthen steel core (13); And
Coat the protective layer (14) of described tight tube fiber (11), reinforcement (12) and described reinforcement steel core (13);
Wherein said tight tube fiber (11) and described reinforcement (12) are stranded on the described reinforcement steel core (13) that is positioned at the center.
6, lightning-proof optical cable according to claim 4 is characterized in that described fiber unit (1) comprising:
A plurality of tight tube fibers (11);
Strengthen steel core (13); And
Coat the protective layer (14) of described tight tube fiber (11) and described reinforcement steel core (13);
Wherein said a plurality of tight tube fiber (11) is stranded on the described reinforcement steel core (13) that is positioned at the center.
7, lightning-proof optical 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%.
8, lightning-proof optical cable according to claim 4 is characterized in that described insulated wire cores (2) comprises the insulating barrier (22) of conductor (21) and the described conductor of coating (21), and described insulating barrier (22) adopts polyolefine material.
9, lightning-proof optical cable according to claim 4 is characterized in that described oversheath (7) adopts the TPO material to make.
10, lightning-proof optical cable according to claim 1 is characterized in that being filled with packing material within the described cable core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201505826U CN201402678Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201505826U CN201402678Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402678Y true CN201402678Y (en) | 2010-02-10 |
Family
ID=41662478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201505826U Expired - Fee Related CN201402678Y (en) | 2009-05-11 | 2009-05-11 | Lightning-proof optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402678Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887782B (en) * | 2009-05-11 | 2012-02-15 | 中利科技集团股份有限公司 | Lightning-protection optical cable |
| CN103413595A (en) * | 2013-07-29 | 2013-11-27 | 成都亨通光通信有限公司 | Photoelectric composite cable |
| CN105609170A (en) * | 2014-09-03 | 2016-05-25 | 吴俊� | Lightning protection photoelectric composite cable, grounding layer, armoured layer and manufacturing methods for grounding layer and armoured layer |
-
2009
- 2009-05-11 CN CN2009201505826U patent/CN201402678Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887782B (en) * | 2009-05-11 | 2012-02-15 | 中利科技集团股份有限公司 | Lightning-protection optical cable |
| CN103413595A (en) * | 2013-07-29 | 2013-11-27 | 成都亨通光通信有限公司 | Photoelectric composite cable |
| CN105609170A (en) * | 2014-09-03 | 2016-05-25 | 吴俊� | Lightning protection photoelectric composite cable, grounding layer, armoured layer and manufacturing methods for grounding layer and armoured layer |
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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: 20100210 Termination date: 20140511 |