CN201984900U - Outdoor digital communication cable - Google Patents
Outdoor digital communication cable Download PDFInfo
- Publication number
- CN201984900U CN201984900U CN2011200851180U CN201120085118U CN201984900U CN 201984900 U CN201984900 U CN 201984900U CN 2011200851180 U CN2011200851180 U CN 2011200851180U CN 201120085118 U CN201120085118 U CN 201120085118U CN 201984900 U CN201984900 U CN 201984900U
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- cable
- stranded
- digital communication
- stranding
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Abstract
The utility model relates to an outdoor digital communication cable, comprising a cable core formed by a plurality of single insulated cables, and a sheath wrapping the cable core, wherein the cable core comprises a plurality of stranding layers which are arranged concentrically; a central layer positioned at the center is formed by at least two wire groups which are stranded and fixed by ribbons; the other stranding layers are formed by stranding a plurality of wire groups and the stranding layer at the inner side and fixing the wire groups and the stranding layer at the inner side by ribbons; and the sheath comprises a polyester belt layer, a single-sided aluminium foil layer, a PE (polyurethane) outer protective layer and steel wire reinforcing pieces from the inner layer to the outer layer in sequence; and the steel wire reinforcing pieces are arranged in the PE outer protective layer in parallel. In the outdoor digital communication cable, the crosstalk performance of the cable is well overcome by a mode of concentrically stranding into the cable, the electromagnetic interference problem is well solved by shielding of aluminium foils, and the cable laying is convenient by distributing the two parallel steel wires as self-bearing type reinforcing members, so that the cost for cable laying is reduced, the efficiency for cable laying is improved, and the practicability is larger.
Description
Technical field
The utility model relates to a kind of outdoor use cable for digital communication.
Background technology
Along with the rise of broadband connections access network construction, cable for digital communication is as the desirable transmission medium of last 100 m of information superhighway and be used widely.Insert the development of communication network and cable for digital communication by indoor demand for adapting to the high bit rate numeral, in recent years 25 pairs of cable for digital communication demand fast rise to outdoor extension.
But the conventional built on stilts cable for digital communication of 25 couple need lay a steel wire rope as built on stilts carrier in addition owing to itself do not have stiffener when laying, promptly increased cost and be inconvenient to again construct.The application just is being based on the improvement of carrying out under the above-mentioned background situation.
The utility model content
The utility model purpose is that a kind of telecommunication cable that can effectively prevent the built on stilts outdoor application of electromagnetic interference self-bearing type is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of outdoor use cable for digital communication, it comprises the cable core that is formed by many eradications edge single line, described cable core is coated on wherein sheath, described every eradication edge single line is by copper cash, the insulating case that is coated on the copper cash periphery is formed, the mutually stranded being aligned group of per two described insulated single wires, described cable core comprises the stranded layer that multilayer concentric is provided with, wherein, the central core that is positioned at the center is mutually stranded and fixedly form by band by at least two line groups, other stranded layers are mutually stranded with its inboard stranded layer and fixedly form by band by a plurality of line groups, and described sheath comprises the polyester belt successively from nexine to skin, the single face aluminium foil layer, PE outer jacket and be set in parallel in steel wire reinforcement in the PE outer jacket.
In according to the concrete enforcement of technique scheme institute, described stranded layer is made up of central core, first stranded layer and second stranded layer from the inside to the outside, and described central core is made up of three line groups, described first stranded layer is made up of nine line groups, described second stranded layer is made up of 13 line groups, promptly forms the cable of 25 pairs of line groups.
Adjacent two described stranded layer direction of lays are opposite.
Each described stranded layer twisting pitch has nothing in common with each other.
Each described stranded layer band varies in color, to discern different strand layers.
Described polyester belt also is provided with drain wire outward.
Described single face aluminium foil layer metal covering inwards closely contacts with drain wire, to strengthen the cable anti-electromagnetic interference capability.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the utility model cable is by the fine cable crosstalk performance that solved of the stranded stranding mode of multilayer concentric formula, by the fine electromagnetic interference problem that solved of aluminum foil shielded, made things convenient for cable laying by laying the parallel double steel wire as the self-bearing type stiffener, reduced the cable laying cost, improve cable laying efficient, have bigger practicality.
Description of drawings
A kind of cross-section of cable figure of accompanying drawing 1 for implementing according to technical solutions of the utility model;
Wherein: 1, cable core; 11, single line; 112, copper cash; 111, insulating case; 12, band; 13, stranded layer; 131, central core; 132, first stranded layer; 133, second stranded layer;
2, sheath; 21, drain wire; 22, polyester belt; 23, plastic-aluminum combined belt; 24, PE outer jacket; 25, steel wire reinforcement;
Embodiment
Below in conjunction with accompanying drawing, describe the particular content of the utility model preferred implementation in detail for example:
Cable as shown in Figure 1, it mainly is made up of cable core 1 and the sheath 2 that is coated on cable core 1 periphery.Wherein, cable core 1 is formed by central core 131, first stranded layer 132 and second stranded layer, 133 concentric strandings.In the present embodiment, central core 131, first stranded layer 132 and second stranded layer 133 are formed with 13 mutually stranded line groups by 3,9 respectively, each line group is made of two mutually stranded single lines 11, and each single line 11 is made by 0.511mm solid copper wire 112 and HDPE insulating case 111 again.The wrapped respectively band 12 of tying up different colours of each stranded layer, central core 131, first stranded layer 132 is opposite with second stranded layer, 133 direction of lays and laying up pitch is different.
During stranding outside above-mentioned cable core 1 earlier a wrapped layer thickness be that the 0.038mm polyester belt forms polyester belt 22, to improve the dielectric voltage withstand characteristic and to play the thermal insulation layer effect.
At the wrapped again layer thickness of the periphery of polyester belt 22 is that 0.1mm single face aluminium-plastic tape forms plastic-aluminum combined belt 23, to play shielding and moisture-proof role, between polyester belt 22 and plastic-aluminum layer 23, vertically place a 0.5mm copper cash or tinned wird as drain wire 21, and plastic-aluminum layer 23 metal covering closely contact with polyester belt, outside plastic-aluminum combined belt 23, extrude one deck black LDPE material, form outer jacket 24, can play anti-ultraviolet work in order to adapt to outdoor environment, when extruding outer jacket, lay two phosphatization steel wire reinforcements 25 in sheath both sides equality.Steel wire is inboard to be not less than 0.8mm with the sheath inner wall thickness.Above-mentioned polyester belt 22, drain wire 21, plastic-aluminum combined belt 23, outer jacket 24 and steel wire 25 have constituted the sheath 2 of this cable.
The cable of 25 pairs of line groups of present embodiment, it adopts concentric strand 3+9+13 structure, solved the cable crosstalk performance, by the fine electromagnetic interference problem that solved of aluminum foil shielded, made things convenient for cable laying by laying the parallel double steel wire as the self-bearing type stiffener, reduce the cable laying cost, improved cable laying efficient.
More than specific embodiment of the present utility model is illustrated and illustrates but the utility model is not only limited to above embodiment.Be not limited to 25 pairs of line groups as cable core, all equivalent transformations of doing according to the utility model all should be within protection range of the present utility model.
Claims (7)
1. outdoor use cable for digital communication, it comprises the cable core (1) that is formed by many eradications edge single line (11), described cable core (1) is coated on wherein sheath (2), described every eradication edge single line (11) is by copper cash (112), the insulating case (111) that is coated on copper cash (112) periphery is formed, the mutually stranded being aligned group of per two described insulated single wires (11), it is characterized in that: described cable core (1) comprises the stranded layer (13) that multilayer concentric is provided with, wherein, the central core (131) that is positioned at the center is mutually stranded and fixedly form by band by at least two line groups, other stranded layers are mutually stranded with its inboard stranded layer and fixedly form by band by a plurality of line groups, and described sheath (2) comprises polyester belt (22) successively from nexine to skin, single face aluminium foil layer (23), PE outer jacket (24) and be set in parallel in steel wire reinforcement (25) in the PE outer jacket (24).
2. outdoor use cable for digital communication according to claim 1, it is characterized in that: described stranded layer (13) is made up of central core (131), first stranded layer (132) and second stranded layer (133) from the inside to the outside, and described central core (131) is made up of three line groups, described first stranded layer (132) is made up of nine line groups, and described second stranded layer (133) is made up of 13 line groups.
3. outdoor use cable for digital communication according to claim 1 and 2 is characterized in that: adjacent two described stranded layer direction of lays are opposite.
4. outdoor use cable for digital communication according to claim 3 is characterized in that: each described stranded layer twisting pitch has nothing in common with each other.
5. outdoor use cable for digital communication according to claim 1 and 2 is characterized in that: each described stranded layer band varies in color.
6. outdoor use cable for digital communication according to claim 1 is characterized in that: the outer drain wire (21) that also is provided with of described polyester belt (22).
7. outdoor use cable for digital communication according to claim 6 is characterized in that: described single face aluminium foil layer (23) metal covering inwards closely contacts with drain wire (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200851180U CN201984900U (en) | 2011-03-28 | 2011-03-28 | Outdoor digital communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200851180U CN201984900U (en) | 2011-03-28 | 2011-03-28 | Outdoor digital communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984900U true CN201984900U (en) | 2011-09-21 |
Family
ID=44612356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200851180U Expired - Lifetime CN201984900U (en) | 2011-03-28 | 2011-03-28 | Outdoor digital communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984900U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708970A (en) * | 2012-06-22 | 2012-10-03 | 南通米兰特电气有限公司 | Connection cable for control cabinet |
| CN102800413A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Self-supporting digital communication cable with one group of line pairs |
| CN108492927A (en) * | 2018-03-23 | 2018-09-04 | 江苏亨通线缆科技有限公司 | Communication cable and communication system |
-
2011
- 2011-03-28 CN CN2011200851180U patent/CN201984900U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708970A (en) * | 2012-06-22 | 2012-10-03 | 南通米兰特电气有限公司 | Connection cable for control cabinet |
| CN102800413A (en) * | 2012-08-14 | 2012-11-28 | 江苏通鼎光电科技有限公司 | Self-supporting digital communication cable with one group of line pairs |
| CN108492927A (en) * | 2018-03-23 | 2018-09-04 | 江苏亨通线缆科技有限公司 | Communication cable and communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |