CN203536015U - Double-sheath cable - Google Patents
Double-sheath cable Download PDFInfo
- Publication number
- CN203536015U CN203536015U CN201320638859.6U CN201320638859U CN203536015U CN 203536015 U CN203536015 U CN 203536015U CN 201320638859 U CN201320638859 U CN 201320638859U CN 203536015 U CN203536015 U CN 203536015U
- Authority
- CN
- China
- Prior art keywords
- cable
- sheath
- double
- cable core
- pvc inner
- 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
- 239000004698 Polyethylene Substances 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 11
- 239000004800 polyvinyl chloride Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Ropes Or Cables (AREA)
Abstract
The utility model relates to a double-sheath cable. The double-sheath cable comprises a cable core, a PVC inner sheath and a PE outer sheath, the cable core is wrapped with the PVC inner sheath, the PVC inner sheath is wrapped with the PE outer sheath, and a polyester tape is disposed between the cable core and the PVC inner sheath; and the cable core comprises four couples of twisted pairs and a tearing rope, each couple of twisted pairs comprises two mutually stranded insulated conductors, and each insulated conductor comprises a polyethylene insulating layer and an inner conductor wrapped with the polyethylene insulating layer. The double-sheath cable has the beneficial effects that by utilization of the PE outer sheath outside the PVC inner sheath, safe reliability of the cable during a using process is effectively improved; performance parameters, such as near-end crosstalk, attenuation crosstalk ratio and return loss and the like, of a traditional double-sheath cable are effectively improved due to the structure design of the cable core; and transmission distance and transmission speed and the like of the cable are effectively improved with the whole structure design of the double-sheath cable.
Description
Technical field
The utility model relates to a kind of double sheathed cable.
Background technology
Development along with power industry, the security reliability that is used in the electric equipments such as subway, nuclear power station, market, hospital, intelligent building requires more and more higher, jacketed cable refers to single core or the multiple core cord with restrictive coating, safer with the two sheaths of especially band of sheath.The near-end cross of current double sheathed cable, the ratio of crosstalking of decaying, the performance parameters such as return loss all have much room for improvement; The transmission range of cable, transmission speed etc. also have much room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of double sheathed cable, to overcome prior art above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of double sheathed cable, comprise cable core, PVC(polyvinyl chloride) inner sheath and PE(polyethylene) oversheath, described cable core is coated in described PVC inner sheath, described PVC inner sheath is coated in described PE oversheath, between described cable core and described PVC inner sheath, be provided with polyester belt, described cable core comprises that four pairs of twisted-pair feeders and one tear rope, and described four pairs of twisted-pair feeders include two mutual stranded insulated conductors.
Further, described insulated conductor comprises polyethylene layer and is wrapped in the inner wire in polyethylene layer.
The beneficial effects of the utility model are: by using PE oversheath in PVC inner sheath outside, effectively raise cable security reliability in use; The structural design of cable core effectively raises the performance parameter of traditional double sheathed cable, as near-end cross, the ratio of crosstalking of decaying, return loss etc.; The overall construction design of double sheathed cable effectively raises the transmission range of cable, transmission speed etc.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of double sheathed cable described in the utility model embodiment.
In figure:
1, PE oversheath; 2, PVC inner sheath; 3, polyester belt; 4, tear rope; 5, insulated conductor; 6, polyethylene layer; 7, inner wire; 8, twisted-pair feeder.
Embodiment
As shown in Figure 1, a kind of double sheathed cable described in the utility model embodiment, comprise cable core, PVC inner sheath 2 and PE oversheath 1, described cable core is coated in described PVC inner sheath 2, and described PVC inner sheath 2 is coated in described PE oversheath 1, between described cable core and described PVC inner sheath 2, is provided with polyester belt 3, described cable core comprises that four pairs of twisted-pair feeders 8 and one tear rope 4, and described four pairs of twisted-pair feeders 8 include two mutual stranded insulated conductors 5.Described insulated conductor 5 comprises polyethylene layer 6 and is wrapped in the inner wire 7 in polyethylene layer 6.
The color of described four pairs of twisted-pair feeders is elected as respectively: white and orange, white and green, white and blue, white and brown.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection range of the present utility model.
Claims (2)
1. a double sheathed cable, comprise cable core, PVC inner sheath (2) and PE oversheath (1), described cable core is coated in described PVC inner sheath (2), described PVC inner sheath (2) is coated in described PE oversheath (1), it is characterized in that: between described cable core and described PVC inner sheath (2), be provided with polyester belt (3), described cable core comprises that four pairs of twisted-pair feeders (8) and one tear rope (4), and described four pairs of twisted-pair feeders (8) include two mutual stranded insulated conductors (5).
2. a kind of double sheathed cable according to claim 1, is characterized in that: described insulated conductor (5) comprises polyethylene layer (6) and is wrapped in the inner wire (7) in polyethylene layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638859.6U CN203536015U (en) | 2013-10-16 | 2013-10-16 | Double-sheath cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638859.6U CN203536015U (en) | 2013-10-16 | 2013-10-16 | Double-sheath cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536015U true CN203536015U (en) | 2014-04-09 |
Family
ID=50422197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638859.6U Expired - Fee Related CN203536015U (en) | 2013-10-16 | 2013-10-16 | Double-sheath cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298045A (en) * | 2016-08-11 | 2017-01-04 | 江苏亨通线缆科技有限公司 | Long-range network transmission of video flame-retardant cable |
-
2013
- 2013-10-16 CN CN201320638859.6U patent/CN203536015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298045A (en) * | 2016-08-11 | 2017-01-04 | 江苏亨通线缆科技有限公司 | Long-range network transmission of video flame-retardant 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: 20140409 Termination date: 20181016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |