CN201408606Y - Self-supporting type lightning protection power cable - Google Patents
Self-supporting type lightning protection power cable Download PDFInfo
- Publication number
- CN201408606Y CN201408606Y CN2009201506424U CN200920150642U CN201408606Y CN 201408606 Y CN201408606 Y CN 201408606Y CN 2009201506424 U CN2009201506424 U CN 2009201506424U CN 200920150642 U CN200920150642 U CN 200920150642U CN 201408606 Y CN201408606 Y CN 201408606Y
- Authority
- CN
- China
- Prior art keywords
- cable
- self
- core
- wire
- proof optical
- 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
Landscapes
- Communication Cables (AREA)
Abstract
The utility model provides a self-supporting type lightning protection power cable, which comprises a cable core for transmitting light signal and electricity, a coating layer for coating the cable core and a suspension wire connected with the coating layer; and the coating layer comprises a shielding layer used for shielding the cable core, an outer sheath used for coating the shielding layer, and a ground plane arranged between the cable core and the shielding layer. The self-supporting type lightning protection power cable provided by the utility model can avoid the damage to communicationequipment by thunderbolts, and can effectively shield the interference to other communication cable signal by an electromagnetic field generated by the cable and the interference to the cable core byan external electromagnetic field.
Description
Technical field
The utility model relates to the electric wire technology, particularly a kind of can lightning protection and the self-supporting 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 self-supporting lightning-proof optical cable of transmitting optical signal and electric power.
Self-supporting lightning-proof optical cable of the present utility model not only can lightning protection, transmitting optical signal and electric power and is convenient to lay, but also can satisfy the required special climate requirement of communication base station of working out of doors.
Above-mentioned self-supporting lightning-proof optical cable of the present utility model comprises:
The cable core of transmitting optical signal and electric power;
The coating of described cable core is covered; And
The messenger wire that connects described coating;
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 said 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 plane can be the outer conductor of oblique wrapped described inner sheath, and its lay of lapping is 18~28 times of described conductor assembly outer diameter.
Wherein said messenger wire comprises: the cable wire that is used to carry; With the messenger wire overcoat that coats described cable wire; And described messenger wire overcoat and described oversheath are structure as a whole.
Wherein said messenger wire is parallel to described cable core, and the described messenger wire overcoat part that is described oversheath.
Wherein said cable core comprises: at least two thoroughly do away with the edge core; At least one fiber unit; And the inner sheath that coats described insulated wire cores and fiber unit.
Wherein said 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 comprises: 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 oversheath adopts the TPO material to make.
Screen of the present utility model can make cable obtain electromagnetism antijamming capability preferably.
The insulating barrier of insulated wire cores of the present utility model, inner sheath adopt low-smoke halogen-free polyolefin class material, have flame-proof environmental protection.
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 as earth connection of the present invention between inner sheath and screen, by stranded copper wire tiltedly bag rearrange, effectively conducted 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 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 core.Added fiber unit in cable inside, erecting optical cables solves the needs of base station thereby need not separately, alleviates laid down cost.The messenger wire structure makes cable more convenient when laying, and has improved the anti-mechanical stretch ability of cable, has ensured the communication security of equipment.Described 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.Therefore a kind of self-supporting 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, and mechanical performance is good.
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 self-supporting lightning-proof optical cable first embodiment of the present utility model; And
Fig. 2 is the schematic diagram that shows self-supporting 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 8-messenger wire; The 81-cable wire; 82-messenger wire sheath; The 9-cable core.
Embodiment
Self-supporting 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 self-supporting lightning-proof optical cable first embodiment of the present utility model, and Fig. 2 has shown self-supporting lightning-proof optical cable second embodiment of the present utility model.In first embodiment, the fiber unit 1 of self-supporting lightning-proof optical cable is provided with reinforcement 12.In a second embodiment, the fiber unit 1 of self-supporting lightning-proof optical cable is not established reinforcement 12.
Put it briefly, self-supporting lightning-proof optical cable of the present utility model comprises: the cable core 9 of transmitting optical signal and electric power; The coating of lining cable core 9; And the messenger wire 8 that connects described coating; Wherein as Fig. 1 or shown in Figure 2, described 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.
Characteristics of the present utility model are, be provided with a messenger wire 8 that connects coating, so that can utilize the messenger wire of self to set up optical cable, not only can accelerate to suppose optical cable speed, the expense of the messenger wire that independently is used to carry optical cable save to be set, and can also improve the anti-mechanical stretch ability of cable, thereby the communication security of support equipment.
As Fig. 1 or shown in Figure 2, messenger wire 8 comprises: the cable wire 81 that is used to carry; With the messenger wire overcoat 82 that coats described cable wire 81; Wherein said messenger wire overcoat 82 is structure as a whole with described oversheath 7, thereby realizes being connected of oversheath 7 of messenger wire overcoat 82 and optical cable.
In addition, messenger wire 8 is parallel to described cable core 9, and described messenger wire overcoat 81 part that is described oversheaths 7.
More particularly, referring to the specific embodiment of Fig. 1 and Fig. 2, self-supporting 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 cable core 9;
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; And
The messenger wire 8 that connects described oversheath 7.
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 two thoroughly do away with 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.
Mainly by cable wire 81 stranded forming, the structure of cable wire 81 is messenger wire 8: one at center, and peripheral some as 6.Cable wire 81 is coated by messenger wire overcoat 82, and in Fig. 1 or instantiation shown in Figure 2, messenger wire overcoat 82 is parts of optical cable oversheath 7.
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 (9)
1, a kind of self-supporting lightning-proof optical cable comprises:
The cable core of transmitting optical signal and electric power (9);
The coating of described cable core (9) is covered; And
The messenger wire (8) that connects described coating;
Wherein, 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, self-supporting lightning-proof optical cable according to claim 1, wherein said 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, self-supporting lightning-proof optical cable according to claim 1, wherein said ground plane (5) are the outer conductors of oblique wrapped described inner sheath (4), and its lay of lapping is 18~28 times of described conductor assembly outer diameter.
4, according to claim 1 or 2 or 3 described self-supporting lightning-proof optical cables, wherein said messenger wire (8) comprising:
The cable wire that is used to carry (81); With
Coat the messenger wire overcoat (82) of described cable wire (81);
Wherein said messenger wire overcoat (82) is structure as a whole with described oversheath (7).
5, self-supporting lightning-proof optical cable according to claim 4, wherein said messenger wire (8) is parallel to described cable core (9).
6, according to claim 1 or 2 or 3 described self-supporting lightning-proof optical cables, wherein said 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).
7, self-supporting lightning-proof optical cable according to claim 6, wherein said 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.
8, self-supporting lightning-proof optical cable according to claim 6, wherein said 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.
8, according to claim 1 or 2 or 3 described self-supporting lightning-proof optical cables, wherein said screen adopts the wrapped described outer conductor of copper strips (5) to form, and wrapped Duplication is more than 25%.
10, self-supporting lightning-proof optical cable according to claim 1, wherein said oversheath (7) adopt the TPO material to make.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201506424U CN201408606Y (en) | 2009-05-11 | 2009-05-11 | Self-supporting type lightning protection power cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201506424U CN201408606Y (en) | 2009-05-11 | 2009-05-11 | Self-supporting type lightning protection power cable |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201408606Y true CN201408606Y (en) | 2010-02-17 |
Family
ID=41679548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009201506424U Expired - Fee Related CN201408606Y (en) | 2009-05-11 | 2009-05-11 | Self-supporting type lightning protection power cable |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201408606Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101887781B (en) * | 2009-05-11 | 2012-09-05 | 中利科技集团股份有限公司 | Self-supporting lightning-proof optical cable |
-
2009
- 2009-05-11 CN CN2009201506424U patent/CN201408606Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101887781B (en) * | 2009-05-11 | 2012-09-05 | 中利科技集团股份有限公司 | Self-supporting lightning-proof optical cable |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101887777B (en) | Lightning protection power cable with reinforced layer | |
CN101887776B (en) | Self-supporting lightning protection power cable | |
CN101887781B (en) | Self-supporting lightning-proof optical cable | |
CN202534423U (en) | Lightning-protection carbon fiber photoelectric composite conducting wire | |
CN101807455B (en) | Photoelectric combined submarine power cable | |
CN217955536U (en) | High-efficiency insulated power cable based on crosslinked polyethylene | |
EP3564970A1 (en) | Single-core submarine cable | |
CN201402678Y (en) | Lightning-proof optical cable | |
CN102751032A (en) | Flame-retardant power cable with concentric conductors | |
CN101887782B (en) | Lightning-protection optical cable | |
CN101887780B (en) | Multigroup lightning protection optical cable | |
CN201402668Y (en) | Lightning-proof power cable | |
CN209766059U (en) | Umbilical cable with armor layer for hose composite strong-current underwater production system | |
CN201408606Y (en) | Self-supporting type lightning protection power cable | |
CN201408605Y (en) | Multi-group lightning protection optical cable | |
CN218181868U (en) | Double-core direct-current submarine cable | |
CN202976931U (en) | Mining-signal-combination flexible cable | |
CN201408600Y (en) | Self-supporting type lightning protection power cable | |
CN206236441U (en) | A kind of weak-current cable | |
CN102446587B (en) | Multi-cable composite high-voltage power cable | |
CN205656899U (en) | Compound environmental protection cable of multipurpose | |
CN211858252U (en) | Compact composite cable | |
CN204288903U (en) | Photoelectric compound cable | |
CN211265745U (en) | Power transmission cable for wind power generation | |
CN203689976U (en) | Aluminium alloy conductor optical fiber composite cable |
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: 20100217 Termination date: 20140511 |