CN203325538U - Overhead cable with function of resisting bird pecking - Google Patents
Overhead cable with function of resisting bird pecking Download PDFInfo
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- CN203325538U CN203325538U CN2013203436013U CN201320343601U CN203325538U CN 203325538 U CN203325538 U CN 203325538U CN 2013203436013 U CN2013203436013 U CN 2013203436013U CN 201320343601 U CN201320343601 U CN 201320343601U CN 203325538 U CN203325538 U CN 203325538U
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Abstract
The utility model discloses an overhead cable with a function of resisting bird pecking. The overhead cable with the function of resisting bird pecking includes a steel wire acting as a self-supporting wire, eight copper conductor coated with polyethylene layers and a red outer sheath. The eight copper conductors are twisted in pairs, so that four stranded conductor pairs for information communication are formed. A first stranded conductor pair, a second stranded conductor pair, a third stranded conductor pair and a fourth stranded conductor pair among the four stranded conductor pairs are arranged successively in an anticlockwise manner and are twisted together, so that a conducting cable core is formed. A polyester tape wraps the outer surface of the conductor cable core. An inner sheath layer wraps the outer surface of the polyester tape in an extruded manner. The red outer sheath includes a first branch sheath and a second branch sheath. The first branch sheath is connected with the second branch sheath through a linking part. The first branch sheath wraps the outer surface of the inner sheath layer while the second branch sheath wraps the outer surface of the steel wire. According to the utility model, transmission property of the outdoor overhead cable with the function of resisting bird pecking is guaranteed and a capability of resisting influence on using performance caused by stretching is improved substantially at the same time. Application and maintenance are facilitated and maintenance efficiency is improved.
Description
Technical field
The utility model relates to a kind of aerial cable, relates in particular to a kind of aerial cable with anti-unfirmly closing function.
Background technology
The structure of common single type telecommunication cable: its primary structure of cable is that copper conductor extrudes one deck insulation outward, stranding after the single line pair twist, outside adopts the structure of polyolefin oversheath, said structure limitation due to telecommunication cable, in exterior finish distributing system, automated detection system, cause that stretching is large, quality is unstable, it is loaded down with trivial details to connect up, unreliable and affect serviceability.
Summary of the invention
The utility model provides a kind of aerial cable with anti-unfirmly closing function, and when this aerial cable guarantees outdoor cable Transmission characteristic, greatly having increased cable affects the ability of serviceability because of stretching, and convenient application and maintenance, improve maintenance efficiency.
For achieving the above object, the technical solution adopted in the utility model is: a kind of aerial cable with anti-unfirmly closing function comprises the steel wire as the self-supporting line, eight copper conductors that are coated with polyethylene layer and red oversheath body; Described eight copper conductors are four pairs of twisted wires pair as information communication of stranded formation in twos, described four twisted pair wire centering the first twisted wires to, the second twisted wire to, the 3rd twisted wire to the 4th twisted wire to being arranged in order counterclockwise and stranded formation conduction cable core;
One polyester belt is wrapped in described cable core outer surface, and an inner restrictive coating extrudes in described polyester belt outer surface;
Described red oversheath body comprises the first sub-sheath and the second sub-sheath, connecting muscle section by one between the described first sub-sheath and the second sub-sheath connects, the described first sub-sheath is coated on described inner restrictive coating outer surface, and the described second sub-sheath is coated on described steel wire outer surface.
Further improve technical scheme in technique scheme as follows:
1. aerial cable according to claim 1, it is characterized in that: the right pitch of described the first twisted wire is 10.6mm, the right pitch of described the second twisted wire is 14.1mm, and the right pitch of described the 3rd twisted wire is 11.8mm, and the right pitch of described the 4th twisted wire is 16.4mm.
2. in such scheme, the Thickness Ratio of the described first sub-sheath and described inner restrictive coating is 5:1.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utlity model has the aerial cable of anti-unfirmly closing function, have the advantages that to substitute existing self-bearing type communication data cable, its transmission characteristic can meet the transmission requirement of intracity communication cable, because cable has adopted the new structure of self-bearing type, effectively having improved stretching large and affect the problem of serviceability; Simultaneously because the restrictive coating of cable is bright-colored, birds comparatively fear this type of color, and the functions such as the water of chance does not decompose, resisting ultraviolet radiation that material has, greatly facilitate emergency maintenance, improve maintenance efficiency and repair quality, be a kind of new product with development prospect, the performance index of product meet the products standards requirement.
2. the utlity model has the aerial cable of anti-unfirmly closing function, by adopting steel wire as main stretch.Adopt birds comparatively responsive red polyolefine material, have not easy to crack, meet the characteristics such as water does not decompose, antiultraviolet, greatly having increased cable affects the ability of serviceability because of stretching.
The accompanying drawing explanation
Accompanying drawing 1 is for the utlity model has the aerial cable structural representation of anti-unfirmly closing function.
In above accompanying drawing: 1, steel wire; 2, copper conductor; 21, polyethylene layer; 3, red oversheath body; 31, the first sub-sheath; 32, the second sub-sheath; 33, connect muscle section; 4, twisted wire pair; 41, the first twisted wire pair; 42, the second twisted wire pair; 43, the 3rd twisted wire pair; 44, the 4th twisted wire pair; 5, conduction cable core; 6, polyester belt; 7, inner restrictive coating.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of aerial cable with anti-unfirmly closing function comprises the steel wire 1 as the self-supporting line, eight copper conductor 2 and red oversheath bodies 3 that are coated with polyethylene layer 21; Four pairs of twisted wires as information communication of stranded formation are to 4 in twos for described eight copper conductors 2, and described four twisted pair wire centering the first twisted wires are arranged in order 44 the 43 and the 4th twisted wire the 42, the 3rd twisted wire and stranded formation conduction cable core 5 counterclockwise to the 41, second twisted wire;
One polyester belt 6 is wrapped in described conduction cable core 5 outer surfaces, and an inner restrictive coating 7 extrudes in described polyester belt 6 outer surfaces;
Described red oversheath body 3 comprises the first sub-sheath 31 and the second sub-sheath 32, connecting muscle section 33 by one between the described first sub-sheath 31 and the second sub-sheath 32 connects, the described first sub-sheath 31 is coated on described inner restrictive coating 7 outer surfaces, and the described second sub-sheath 32 is coated on described steel wire 1 outer surface.
Above-mentioned the first twisted wire is 10.6mm to 41 pitch, and described the second twisted wire is 14.1mm to 42 pitch, and described the 3rd twisted wire is 11.8mm to 43 pitch, and described the 4th twisted wire is 16.4mm to 44 pitch.
The above-mentioned first sub-sheath 31 is 5:1 with the Thickness Ratio of described inner restrictive coating 7.
The development process of the utility model technology is as follows:
This utility model technology is applied to make transmission line in distributing system, automated detection system under adverse circumstances in exterior finish or local machine room.
Therefore, present technique has been considered the reliability of the transmission usefulness of cable, the reliability of self-supporting line mass, the stability of manufacture course of products technique.
The development process of the utility model technology is as follows:
1, the product technology scheme determines
1.1 the main performance index of finished cable
Conductor DC resistance (20 ℃) :≤95 Ω/km;
The mutual capacitance of cable :≤56 nF/km;
The insulation resistance of cable: >=10000 M Ω km
Near-end crosstalk attenuation (during 1024KHz): >=79 dB
2, the technical process of product:
2.1 in the insulation extrusion process, adopt the extruder of capable of regulating bias, wolfram steel squash type extrusion die, carry out electric capacity, outer insulation diameter, eccentric Synchronization Control online.
2.2 adopt the back twist strand to rear to outdoor cable, use certain pitch to carry out the stranding twisting.
2.3 cable conductor and self-supporting steel wire extrude outer jacket, improve the stretch-proof bending resistance of cable simultaneously, the assurance cable, without elongation strain, is guaranteed its transmission characteristic long-term stability.
3, the detection of product: the electric property to product detects evaluation.
4, product is monitored in the application system running status.
While adopting the above-mentioned aerial cable with anti-unfirmly closing function, it has the advantages that to substitute existing self-bearing type communication data cable, its transmission characteristic can meet the transmission requirement of intracity communication cable, because cable has adopted the new structure of self-bearing type, effectively having improved stretching large and affect the problem of serviceability; Simultaneously because the restrictive coating of cable is bright-colored, birds comparatively fear this type of color, and the functions such as the water of chance does not decompose, resisting ultraviolet radiation that material has, greatly facilitate emergency maintenance, improve maintenance efficiency and repair quality, be a kind of new product with development prospect, the performance index of product meet the products standards requirement; Secondly, this has the aerial cable of anti-unfirmly closing function, by adopting steel wire as main stretch.Adopt birds comparatively responsive red polyolefine material, have not easy to crack, meet the characteristics such as water does not decompose, antiultraviolet, greatly having increased cable affects the ability of serviceability because of stretching.
Above-described embodiment is only explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.
Claims (3)
1. the aerial cable with anti-unfirmly closing function, is characterized in that: comprise the steel wire (1) as the self-supporting line, copper conductor (2) and the red oversheath body (3) that eight are coated with polyethylene layer (21); Four pairs of twisted wires as information communication of stranded formation are to (4) in twos for described eight copper conductors (2), and described four twisted pair wire centering the first twisted wires counterclockwise are arranged in order also stranded formation conduction cable core (5) to (43) and the 4th twisted wire to (44) to (42), the 3rd twisted wire to (41), the second twisted wire;
One polyester belt (6) is wrapped in described conduction cable core (5) outer surface, and an inner restrictive coating (7) extrudes in described polyester belt (6) outer surface;
Described red oversheath body (3) comprises the first sub-sheath (31) and the second sub-sheath (32), connecting muscle section (33) by one between the described first sub-sheath (31) and the second sub-sheath (32) connects, the described first sub-sheath (31) is coated on described inner restrictive coating (7) outer surface, and the described second sub-sheath (32) is coated on described steel wire (1) outer surface.
2. aerial cable according to claim 1, it is characterized in that: described the first twisted wire is 10.6mm to the pitch of (41), described the second twisted wire is 14.1mm to the pitch of (42), described the 3rd twisted wire is 11.8mm to the pitch of (43), and described the 4th twisted wire is 16.4mm to the pitch of (44).
3. aerial cable according to claim 1 is characterized in that: the described first sub-sheath (31) is 5:1 with the Thickness Ratio of described inner restrictive coating (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203436013U CN203325538U (en) | 2013-06-14 | 2013-06-14 | Overhead cable with function of resisting bird pecking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203436013U CN203325538U (en) | 2013-06-14 | 2013-06-14 | Overhead cable with function of resisting bird pecking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325538U true CN203325538U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203436013U Expired - Fee Related CN203325538U (en) | 2013-06-14 | 2013-06-14 | Overhead cable with function of resisting bird pecking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319005A (en) * | 2014-10-28 | 2015-01-28 | 江苏亨通线缆科技有限公司 | Remote multi-core flexible communication cable |
-
2013
- 2013-06-14 CN CN2013203436013U patent/CN203325538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319005A (en) * | 2014-10-28 | 2015-01-28 | 江苏亨通线缆科技有限公司 | Remote multi-core flexible communication cable |
| CN104319005B (en) * | 2014-10-28 | 2017-01-11 | 江苏亨通线缆科技有限公司 | Remote multi-core flexible communication cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |