CN202307241U - Flat environmentally-friendly high-electric-property digital cable - Google Patents
Flat environmentally-friendly high-electric-property digital cable Download PDFInfo
- Publication number
- CN202307241U CN202307241U CN 201120408743 CN201120408743U CN202307241U CN 202307241 U CN202307241 U CN 202307241U CN 201120408743 CN201120408743 CN 201120408743 CN 201120408743 U CN201120408743 U CN 201120408743U CN 202307241 U CN202307241 U CN 202307241U
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- twisted
- cable
- twisted wire
- digital cable
- polyvinyl chloride
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- Expired - Fee Related
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Abstract
The utility model discloses a flat environmentally-friendly high-electric-property digital cable. The digital cable comprises eight copper conductors wrapped by polyethylene layers, and the eight copper conductors are twisted in pairs to form four twisted pairs; a polyvinyl chloride layer is wrapped on the first twisted pair, the second twisted pair, the third twisted pair and the fourth twisted pair in the four twisted pairs; the four twisted pairs are parallelly arranged in the same plane, and the adjacent twisted pairs are isolated by the polyvinyl chloride layer; and rip cords are wrapped in the polyvinyl chloride layer. The environmentally-friendly high-electric-property digital cable provided by the utility model adopts a non-circular structure, and effectively solves the problem that the pitch of line pairs in a conventional data cable changes due to stretching, thereby having greatly improved electrical property indexes.
Description
Technical field
The utility model relates to the digital cable field, is specifically related to the high electrically digital cable of a kind of platypelloid type environmental protection.
Background technology
Common indoor digital cable is that single line is through twisting operation; Several groups of strands will be twisted into circular configuration with certain laying up pitch to line and carry out sheath more then; This structure when wiring construction not only can be excessive because of workmen's pulling force, undue force causes the right pitch of cable inner wire to change because of stretching; Thereby have influence on digital cable to each item electric transmission performance, and the cable of this circular configuration also is unfavorable for indoor wiring and finishing.
The structure of cable: the structure of common digital cable be single line through strand to behind the stranding with the circular configuration of PVC, in mainly be laid in residence interior trims netting twine or the computer local area machine room as sheath.
Because the limitation of the above-mentioned circular configuration of cable, the wiring of cable and finishing bring many inconvenience in residence interior trims netting twine or computer local area machine room, and the digital cable that is twisted during construction, bends, handles roughly causes quality unstable, unreliable; And lack certain ability that prevents to influence serviceability because of the force-extension ability.
Summary of the invention
The utility model purpose provides the high electrically digital cable of a kind of platypelloid type environmental protection; The high electrically digital cable of this environmental protection adopts non-circular structure; Solve the variation that the right pitch in available data cable interior lines takes place because of stretching effectively, thereby improved each item electrical performance indexes of cable greatly; Secondly, owing to adopt the flat cable structure, product is pair twist direct sheath later in process of production, does not need stranding, and operation is simplified to some extent, greatly reduces production cycle and cost.
For achieving the above object, the technical scheme that the utility model adopts is: the high electrically digital cable of a kind of platypelloid type environmental protection comprises: eight copper conductors that are coated with polyethylene layer, and stranded in twos formation four twisted pair wires of these eight copper conductors are right; One polyvinyl chloride layer be coated on said four twisted pair wire centerings, first twisted wire to, second twisted wire to, the 3rd twisted wire to right with the 4th twisted wire;
This first twisted wire to, second twisted wire to, the 3rd twisted wire to the 4th twisted wire to parallel placement and be positioned at same plane, adjacent twisted wire between isolate through said polyvinyl chloride layer.
It is following that technique scheme is further improved technical scheme:
In the such scheme, also be coated with in the said polyvinyl chloride layer and tear rope.
Because the technique scheme utilization, the utility model compared with prior art has advantage and effect:
The high electrically digital cable of the utility model platypelloid type environmental protection adopts non-circular structure, has solved the variation that the right pitch in available data cable interior lines takes place because of stretching effectively, thereby has improved each item electrical performance indexes of cable greatly; Secondly, owing to adopt the flat cable structure, product is pair twist direct sheath later in process of production, does not need stranding, and operation is simplified to some extent, greatly reduces production cycle and cost.
Description of drawings
Accompanying drawing 1 is the high electrically digital cable structural representation of the utility model platypelloid type environmental protection.
In the above accompanying drawing: 1, polyethylene layer; 2, copper conductor; 3, polyvinyl chloride layer; 4, first twisted wire is right; 5, second twisted wire is right; 6, the 3rd twisted wire is right; 7, the 4th twisted wire is right; 8, tear rope.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: the high electrically digital cable of a kind of platypelloid type environmental protection comprises: eight copper conductors 2 that are coated with polyethylene layer 1, and stranded in twos formation four twisted pair wires of these eight copper conductors 2 are right; One polyvinyl chloride layer 3 be coated on said four twisted pair wire centerings, first twisted wire to 4, second twisted wire to the 5, the 3rd twisted wire to the 6 and the 4th twisted wire to 7;
This first twisted wire to 4, second twisted wire to the 5, the 3rd twisted wire to 6 with the 4th twisted wire to 7 parallel placements and be positioned at same plane, adjacent twisted wire between isolate through said polyvinyl chloride layer 3.
Also be coated with in the above-mentioned polyvinyl chloride layer 3 and tear rope 8.
On the basis that guarantees the digital cable transmission characteristic; Through changing its existing circular configuration; Strand to the back directly with the sheath of the high environment-friendly PVC material of heat-resisting proof voltage as cable; Solve the variation that the right pitch in data cable interior lines takes place because of stretching effectively, thereby improved each item electrical performance indexes of cable greatly; When sheath, use high electrically environment-friendly PVC material, have high resistance, ageing-resistant good stability, a crooked excessive right sheaf space in cable interior lines that changes of cable in the time of can effectively preventing because of construction environment friendly and pollution-free the time, cause the decline of cable Noise Resistance Ability; So when guaranteeing the stable transmission performance of cable, coefficient of safety is higher, installs, lay conveniently.
The successful exploitation of the utility model technology; When guaranteeing digital cable product transmission characteristic; Break through the circular configuration of traditional cable; Solved the right pitch in digital cable interior lines effectively and changed, had a strong impact on the indexs such as stretching of cable cross-talk (NEXT, FEXT), conductor and insulating barrier because of stretching; Conveniently install, lay, and it is less to take up room, electrical property, ageing properties are little with variation of temperature, environment friendly and pollution-free, have promotion prospect and market value widely.
On the basis that guarantees the digital cable transmission characteristic; Through changing its circular configuration; Strand to the back directly with the sheath of the high environment-friendly PVC material of heat-resisting proof voltage as cable; Solve the variation that the right pitch in data cable interior lines takes place because of stretching effectively, thereby improved each item electrical performance indexes of cable greatly; When sheath, use high electrically environment-friendly PVC material, have high resistance, ageing-resistant good stability, a crooked excessive right sheaf space in cable interior lines that changes of cable in the time of can effectively preventing because of construction environment friendly and pollution-free the time, cause the decline of cable Noise Resistance Ability; So when guaranteeing the stable transmission performance of cable, coefficient of safety is higher, installs, lay conveniently.
The successful exploitation of the utility model technology; When guaranteeing digital cable product transmission characteristic; Break through the circular configuration of traditional cable; Solved the right pitch in digital cable interior lines effectively and changed, had a strong impact on the indexs such as stretching of cable cross-talk (NEXT, FEXT), conductor and insulating barrier because of stretching; Conveniently install, lay, and it is less to take up room, electrical property, ageing properties are little with variation of temperature, environment friendly and pollution-free, have promotion prospect and market value widely.
The development process of the utility model technology is following:
1, the content of the utility model exploitation:
The main performance index of finished cable
Conductor DC resistance (20 ℃) :≤88.36 Ω/km;
The characteristic impedance of cable (20 ℃): 100 ± 15 Ω;
The mutual capacitance of cable :≤52 nF/km;
The insulation resistance of cable: >=10000 M Ω km.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (2)
1. the high electrically digital cable of a platypelloid type environmental protection is characterized in that: comprising: eight copper conductors (2) that are coated with polyethylene layer (1), and stranded in twos formation four twisted pair wires of these eight copper conductors (2) are right; One polyvinyl chloride layer (3) be coated on said four twisted pair wire centerings, first twisted wire to (4), second twisted wire to (5), the 3rd twisted wire to (6) and the 4th twisted wire to (7);
This first twisted wire to (4), second twisted wire to (5), the 3rd twisted wire to (6) and the 4th twisted wire to (7) parallel placement and be positioned at same plane, adjacent twisted wire between isolate through said polyvinyl chloride layer (3).
2. the high electrically digital cable of environmental protection according to claim 1 is characterized in that: also be coated with in the said polyvinyl chloride layer (3) and tear rope (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120408743 CN202307241U (en) | 2011-10-25 | 2011-10-25 | Flat environmentally-friendly high-electric-property digital cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120408743 CN202307241U (en) | 2011-10-25 | 2011-10-25 | Flat environmentally-friendly high-electric-property digital cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307241U true CN202307241U (en) | 2012-07-04 |
Family
ID=46376086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120408743 Expired - Fee Related CN202307241U (en) | 2011-10-25 | 2011-10-25 | Flat environmentally-friendly high-electric-property digital cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307241U (en) |
-
2011
- 2011-10-25 CN CN 201120408743 patent/CN202307241U/en not_active Expired - Fee Related
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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: 20120704 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |