CN204720237U - A kind of long-distance transmissions direct current carrier power cable - Google Patents
A kind of long-distance transmissions direct current carrier power cable Download PDFInfo
- Publication number
- CN204720237U CN204720237U CN201520425553.1U CN201520425553U CN204720237U CN 204720237 U CN204720237 U CN 204720237U CN 201520425553 U CN201520425553 U CN 201520425553U CN 204720237 U CN204720237 U CN 204720237U
- Authority
- CN
- China
- Prior art keywords
- insulated wire
- wire cores
- direct current
- long
- power cable
- 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
Landscapes
- Communication Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of long-distance transmissions direct current carrier power cable, comprise many insulated wire cores, insulated wire cores interval is centered around central tube periphery and forms cable core, cable core extrusion moulding, in polyethylene or polyolefin inner restrictive coating, is also provided with the loss of weight clearance hole of bar shaped between adjacent insulated wire cores; Polyethylene or polyolefin inner restrictive coating are coated with foamed plastic layer, composite shielding layer, corrosion-resistant separator, external sheath layer.The utility model novel in structural design, five insulated wire cores are centered around central tube periphery, after not only can making stranding, there is low-impedance characteristic, decay little, simultaneously, the advantage of also there is after stranding excellent anti-interference shielding properties, decay resistance, resistance to elevated temperatures, total weight be light, laying distance.
Description
technical field:
The utility model relates to power cable, particularly relates to a kind of long-distance transmissions direct current carrier power cable.
background technology:
Power line carrier communication utilizes power line to carry out a kind of specific communication mode of voice or transfer of data as information transmitting medium.Power line is generally divided into high, normal, basic 3 classes in power carrier field, and usual high-voltage power line refers to 35kV and above, medium voltage power line refers to 10kV electric pressure or low-voltage distribution wire 380/220V subscribers feeder.
Power line causes high reduction to carrier signal, and when load on power line is very heavy, line impedance can reach less than 1 ohm, causes and cuts down the height of carrier signal.In practical application, when power line is unloaded, point-to-point carrier signal can be transferred to several kilometers; When load on power line is very heavy, tens meters can only be transmitted.
Therefore, need the weight as far as possible reducing cable self, improve structural compactness, extend and lay distance.
utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of long-distance transmissions direct current carrier power cable, and compact type is good, and total weight is light, can lay at a distance.
Long-distance transmissions direct current carrier power cable, comprise many insulated wire cores, it is characterized in that: described insulated wire cores interval is centered around central tube periphery and forms cable core, cable core extrusion moulding, in polyethylene or polyolefin inner restrictive coating, is also provided with the loss of weight clearance hole of bar shaped between adjacent insulated wire cores; Described polyethylene or polyolefin inner restrictive coating are coated with foamed plastic layer, composite shielding layer, corrosion-resistant separator, external sheath layer.
Described long-distance transmissions direct current carrier power cable, it is characterized in that: described composite shielding layer adopts the plastic tape wound clockwise of inside and outside double-deck thermoplastic elastomer (TPE) material, is also provided with aluminium-plastic tape wrapped anti-clockwise between the plastic tape of inside and outside double-deck thermoplastic elastomer (TPE) material.
Described long-distance transmissions direct current carrier power cable, is characterized in that: described loss of weight clearance hole extends continuously along cable core axial direction also can interval setting.
Described long-distance transmissions direct current carrier power cable, is characterized in that: described corrosion-resistant separator adopts the wrapped formation of double-layer ceramic fibrous thermal band.
The technical solution of the utility model is as follows:
The utility model has the advantages that:
The utility model novel in structural design, five insulated wire cores are centered around central tube periphery, after not only can making stranding, there is low-impedance characteristic, decay little, simultaneously, the advantage of also there is after stranding excellent anti-interference shielding properties, decay resistance, resistance to elevated temperatures, total weight be light, laying distance.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
embodiment:
See accompanying drawing:
Long-distance transmissions direct current carrier power cable, comprise many insulated wire cores 1, insulated wire cores 1 interval is centered around central tube 2 periphery and forms cable core, and cable core extrusion moulding, in polyethylene or polyolefin inner restrictive coating 3, is also provided with the loss of weight clearance hole 4 of bar shaped between adjacent insulated wire cores; Polyethylene or polyolefin inner restrictive coating 3 are coated with foamed plastic layer 5, composite shielding layer 6, corrosion-resistant separator 7, the external sheath layer 8 of lighter in weight.
Composite shielding layer 5 adopts the plastic tape wound clockwise of inside and outside double-deck thermoplastic elastomer (TPE) material 6-1,6-2, also be provided with aluminium-plastic tape 6-3 wrapped anti-clockwise between the plastic tape of inside and outside double-deck thermoplastic elastomer (TPE) material, there is stronger anti-outside electromagnetic interference performance.
Loss of weight clearance hole 4 along cable core axial direction extend continuously also can interval arrange, effectively can reduce the total weight after stranding, between each insulated wire cores, current heating influences each other little.
Corrosion-resistant separator 7 adopts the wrapped formation of double-layer ceramic fibrous thermal band, lightweight, also has that tension warp resistance intensity is high, resistance to elevated temperatures.
Claims (4)
1. a long-distance transmissions direct current carrier power cable, comprise many insulated wire cores, it is characterized in that: described insulated wire cores interval is centered around central tube periphery and forms cable core, cable core extrusion moulding, in polyethylene or polyolefin inner restrictive coating, is also provided with the loss of weight clearance hole of bar shaped between adjacent insulated wire cores; Described polyethylene or polyolefin inner restrictive coating are coated with foamed plastic layer, composite shielding layer, corrosion-resistant separator, external sheath layer.
2. long-distance transmissions direct current carrier power cable according to claim 1, it is characterized in that: described composite shielding layer adopts the plastic tape wound clockwise of inside and outside double-deck thermoplastic elastomer (TPE) material, is also provided with aluminium-plastic tape wrapped anti-clockwise between the plastic tape of inside and outside double-deck thermoplastic elastomer (TPE) material.
3. long-distance transmissions direct current carrier power cable according to claim 1, is characterized in that: described loss of weight clearance hole extends continuously along cable core axial direction also can interval setting.
4. long-distance transmissions direct current carrier power cable according to claim 1, is characterized in that: described corrosion-resistant separator adopts the wrapped formation of double-layer ceramic fibrous thermal band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425553.1U CN204720237U (en) | 2015-06-18 | 2015-06-18 | A kind of long-distance transmissions direct current carrier power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425553.1U CN204720237U (en) | 2015-06-18 | 2015-06-18 | A kind of long-distance transmissions direct current carrier power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720237U true CN204720237U (en) | 2015-10-21 |
Family
ID=54319213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520425553.1U Expired - Fee Related CN204720237U (en) | 2015-06-18 | 2015-06-18 | A kind of long-distance transmissions direct current carrier power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897328A (en) * | 2016-04-26 | 2016-08-24 | 清华大学深圳研究生院 | Micro-satellite information processing system and communication method thereof |
-
2015
- 2015-06-18 CN CN201520425553.1U patent/CN204720237U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897328A (en) * | 2016-04-26 | 2016-08-24 | 清华大学深圳研究生院 | Micro-satellite information processing system and communication method thereof |
| CN105897328B (en) * | 2016-04-26 | 2017-09-15 | 清华大学深圳研究生院 | A kind of communication means of microsatellite information processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203787116U (en) | Three-core twisted-pair reinforcement cable applied to instrument | |
| CN207009150U (en) | A kind of flexible ground shield optoelectronic composite cable | |
| CN203366845U (en) | Waterproof communication cable for intrinsic safety | |
| CN204720237U (en) | A kind of long-distance transmissions direct current carrier power cable | |
| CN206312613U (en) | Optical fiber composite-type flexible drum cable | |
| CN110098003B (en) | Accompanying floating cable for ocean platform | |
| CN209515246U (en) | A kind of heat radiating type new energy charge cable | |
| CN203850040U (en) | Photoelectric composite cable for access network | |
| CN102637470A (en) | Wind energy composite cable for transmitting voice frequency, video and data | |
| CN206312632U (en) | Communication composite power cable | |
| CN203242400U (en) | Photoelectric composite cable for mobile communication distributed base stations | |
| CN201673723U (en) | Square cable for telecommunication equipment | |
| CN211507215U (en) | Electromagnetic interference resistant superfine high-definition coaxial cable | |
| CN204596497U (en) | A kind of anti-interference anticorrosion industrial cable | |
| CN205303018U (en) | High -power optic fibre compound control cable of strenghthened type | |
| CN204792094U (en) | Resistant high -speed transmitting data line of buckling | |
| CN204695835U (en) | A kind of anti-extrusion composite cable | |
| CN208384199U (en) | A kind of access net butterfly leading in cable | |
| CN206312643U (en) | Compound power cable | |
| CN206271446U (en) | A kind of launch vehicle measurement optoelectronic composite cable | |
| CN111048241A (en) | Photoelectric composite cable suitable for 5G antenna | |
| CN203102915U (en) | Tensile low temperature-resistant control flexible cable | |
| CN203673843U (en) | Low temperature resistant electric cable having heat tracing structure | |
| CN212659349U (en) | Wear-resistant, oil-resistant and acid-alkali-resistant radio frequency cable | |
| CN203433888U (en) | Low-attenuation communication cable |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20180618 |