CN204332522U - New Low Voltage direct current carrier power cable - Google Patents
New Low Voltage direct current carrier power cable Download PDFInfo
- Publication number
- CN204332522U CN204332522U CN201520061122.1U CN201520061122U CN204332522U CN 204332522 U CN204332522 U CN 204332522U CN 201520061122 U CN201520061122 U CN 201520061122U CN 204332522 U CN204332522 U CN 204332522U
- Authority
- CN
- China
- Prior art keywords
- conductor
- sheath
- direct current
- low voltage
- 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
- Insulated Conductors (AREA)
Abstract
Problem to be solved in the utility model is: problem to be solved in the utility model is to provide a kind of New Low Voltage direct current carrier power cable.Comprise conductor, insulating barrier, screen and protective layer, described conductor is divided conductor; Described insulating barrier is the polyethylene sheath that extrudes of color separation or polyolefin insulation crust; Described protective layer comprises sheath and outer jacket respectively; Described screen is between sheath and outer jacket; The mode that described screen is the neutral line and protectiveness conductor concentric stranding is wrapped in the outer one deck formed of sheath.Beneficial effect is: 1. divided conductor decreases kelvin effect and proximity effect, improves the ampacity of cable; 2. screen provides stronger electromagnetism interference performance and anti-lightning performance, reduces the impact of noise for carrier wave simultaneously; 3. five core concentric conductors have low-impedance characteristic, carrier wave are decayed in the process of transmission little.
Description
Technical field
The utility model relates to electric power conveying technology field, particularly relates to a kind of New Low Voltage direct current carrier power cable.
Background technology
Power cable is the cable for transmitting and distribute electric energy, and power cable is usually used in Urban Underground electrical network, power station lead line, industrial and mining enterprises' in-line power and power transmission line (Beijing Beijing-Shenyang Li Lan Science and Technology Ltd.) under crossing river seawater.In power circuit, cable proportion increases just gradually.Power cable is in order to transmission and the cable product distributing high-power power in the basic routing line of electric power system, comprising 1-500KV and above various electric pressure, and the power cable of various insulation.
In can being divided into by electric pressure, lv power cable (35 kilovolts and following), high-tension cable (more than 110 kilovolts), extra-high-tension cable (275 ~ 800 kilovolts) and extra-high-tension cable (1000 kilovolts and more than).In addition, also ac cable and direct current cables can be divided into by electric current system.
The basic structure of power cable is made up of core (conductor), insulating barrier, screen and protective layer four part.
Power line carrier Power Line Carrier-PLC 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.
PLC and Power Line Carrier, power line carrier (PLC) is the distinctive communication mode of electric power system, and electric line carrier communication refers to and utilizes existing power line, by carrier system, analog or digital signal is carried out the technology of high-speed transfer.Maximum feature does not need again to set up network, as long as live wire, just can carry out data transmission.
Power line carrier technology breaches the restriction being only limitted to single chip application, enter digital times, and along with power line carrier technology development and society the carrier communication of needs medium/low piezoelectric forces technological development and application also there is situation in the ascendant.Power line carrier communication this be likened to not by popular speciality that the Kingsoft of excavating becomes a field of power communication just gradually and even affects the livelihood of every family by external medium.
But electric line carrier communication is because there is following shortcoming, PLC is caused mainly to apply--" electric power online " fails large-scale application:
1, distribution transformer has iris action to power carrier signal, so power carrier signal can only transmit in a distribution transformer regional extent;
2, very large-signal loss (10dB-30dB) is had between three-phase power line.When communication distance is very near, difference is alternate may receive signal.General power carrier signal can only be uploaded defeated in the single-phase electricity line of force;
3, unlike signal coupled modes are different to power carrier signal loss, and coupled modes are wired-and ground coupling and line-center line be coupled.Line-ground coupled modes are compared with line-center line coupled modes, and power carrier signal loses tens dB less, but line-not all regional power system of ground coupled modes is all applicable;
4, the impulse disturbances of power line existence itself because having.The alternating current used has 50HZ and 60HZ, then the cycle is 20ms and 16.7ms, in each ac cycle, occur two minor peaks, two minor peaks can bring twice impulse disturbances, namely power line have fixing 100HZ or 120HZ impulse disturbances, interference time is about 2ms, must be processed because determining interference.There is a kind of method of carrying out transfer of data in short time utilizing waveform to cross at 0, but short owing to spending 0 time, practical application bad control synchronous with AC wave shape, modern communication Frame is long again, so be difficult to application;
5, power line causes high reduction to carrier signal.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.But when load on power line is very heavy, tens meters can only be transmitted.
Utility model content
Problem to be solved in the utility model is: problem to be solved in the utility model is to provide a kind of New Low Voltage direct current carrier power cable.
The technical solution of the utility model is as follows: a kind of New Low Voltage direct current carrier power cable, comprises conductor, insulating barrier, screen and protective layer, it is characterized in that:
Described conductor is divided conductor;
Described insulating barrier is the polyethylene sheath that extrudes of color separation or polyolefin insulation crust;
Described protective layer comprises sheath and outer jacket respectively;
Described screen is between sheath and outer jacket; The mode that described screen is the neutral line and protectiveness conductor concentric stranding is wrapped in the outer one deck formed of sheath.
Further, described conductor is divided conductor, and described divided conductor is five core concentric conductors; A described five core concentric conductors core is wherein positioned at central authorities, and the end to end formation of remaining four-core one is wrapped in outside a central core relative to the concentric circles of a central core.
Further, insulating barrier is equipped with outside arbitrary described core.
Further, described conductor is round copper wire or flat copper silk.
Further, the insulating barrier coat color that extrudes of different divided conductor is different.
Further, described sheath is petroleum jelly packed layer.
Further, described outer jacket comprises the sheath be made up of steel band or steel wire, the tegillum formed with polyethylene forms.
The beneficial effects of the utility model are: 1. divided conductor decreases kelvin effect and proximity effect, improve the ampacity of cable; 2. screen provides stronger electromagnetism interference performance and anti-lightning performance, reduces the impact of noise for carrier wave simultaneously; 3. five core concentric conductors have low-impedance characteristic, carrier wave are decayed in the process of transmission little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, conductor, 2, insulating barrier,
3, screen, 4, sheath,
5, outer jacket.
Embodiment
Below in conjunction with accompanying drawing, brief description is made to embodiment of the present utility model.
As shown in Figure 1, New Low Voltage direct current carrier power cable, comprises conductor 1, insulating barrier 2, screen 3 and protective layer.
Described conductor 1 is divided conductor, and divided conductor decreases kelvin effect and proximity effect, improves the ampacity of cable.Described divided conductor is five core concentric conductors, and five core concentric conductors have low-impedance characteristic, carrier wave is decayed in the process of transmission little.A described five core concentric conductors core is wherein positioned at central authorities, and the end to end formation of remaining four-core one is wrapped in outside a central core relative to the concentric circles of a central core.Described conductor 1 is round copper wire or flat copper silk.
The polyethylene sheath that described insulating barrier 2 extrudes for color separation or polyolefin insulation crust, described five core concentric conductors, be equipped with insulating barrier 2 outside arbitrary described core, the insulating barrier coat color that different divided conductor extrudes is different.
Described protective layer comprises sheath 4 and outer jacket 5 respectively, and described sheath 4 is petroleum jelly packed layer.Described outer jacket 5 comprises the sheath be made up of steel band or steel wire, the tegillum formed with polyethylene is formed.
Described screen 3 is between sheath 4 and outer jacket 5; Described screen 3 is for being wrapped in the outer one deck formed of sheath by the mode of the neutral line and protectiveness conductor concentric stranding.Screen provides stronger electromagnetism interference performance and anti-lightning performance, reduces the impact of noise for carrier wave simultaneously.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (7)
1. New Low Voltage direct current carrier power cable, comprises conductor (1), insulating barrier (2), screen (3) and protective layer, it is characterized in that:
Described conductor (1) is divided conductor;
The polyethylene sheath that described insulating barrier (2) extrudes for color separation or polyolefin insulation crust;
Described protective layer comprises sheath (4) and outer jacket (5) respectively;
Described screen (3) is positioned between sheath (4) and outer jacket (5); Described screen (3) is for being wrapped in the outer one deck formed of sheath by the mode of the neutral line and protectiveness conductor concentric stranding.
2. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: described conductor (1) is divided conductor, described divided conductor is five core concentric conductors; A described five core concentric conductors core is wherein positioned at central authorities, and the end to end formation of remaining four-core one is wrapped in outside a central core relative to the concentric circles of a central core.
3. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: described five core concentric conductors, is equipped with insulating barrier (2) outside arbitrary described core.
4. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: described conductor (1) is round copper wire or flat copper silk.
5. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: the insulating barrier coat color that different divided conductor extrudes is different.
6. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: described sheath (4) is petroleum jelly packed layer.
7. New Low Voltage direct current carrier power cable according to claim 1, is characterized in that: described outer jacket (5) comprises the sheath be made up of steel band or steel wire, the tegillum formed with polyethylene is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061122.1U CN204332522U (en) | 2015-01-28 | 2015-01-28 | New Low Voltage direct current carrier power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061122.1U CN204332522U (en) | 2015-01-28 | 2015-01-28 | New Low Voltage direct current carrier power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332522U true CN204332522U (en) | 2015-05-13 |
Family
ID=53168849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520061122.1U Expired - Fee Related CN204332522U (en) | 2015-01-28 | 2015-01-28 | New Low Voltage direct current carrier power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659086A (en) * | 2018-12-27 | 2019-04-19 | 北京航天飞腾装备技术有限责任公司 | Power carrier cable and production method |
-
2015
- 2015-01-28 CN CN201520061122.1U patent/CN204332522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659086A (en) * | 2018-12-27 | 2019-04-19 | 北京航天飞腾装备技术有限责任公司 | Power carrier cable and production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280194A (en) | Cross-linked polyethylene isolated power cable of split conductor structure | |
| CN204614511U (en) | A kind of naval vessel optical fiber controls compound shore connection cable | |
| CN203026249U (en) | Power cable | |
| CN204332522U (en) | New Low Voltage direct current carrier power cable | |
| CN207124443U (en) | A kind of new energy taking device of transmission line of electricity | |
| CN102629882A (en) | Power carrier communication system of cable shielding layer | |
| CN202711843U (en) | Flame-retardant power cable with concentric conductor | |
| CN202549456U (en) | Flame retardant fire-resistant power cable with rated voltage of 0.6/1kV | |
| CN201946339U (en) | Photoelectric compound overhead insulating cable with rated voltage of 1KV or below | |
| CN209374139U (en) | A kind of symmetrical power cable of low pressure | |
| CN204558083U (en) | A kind of charging electric vehicle cable | |
| CN204596451U (en) | A kind of aerial insulated cable of parallel set beamforming | |
| CN203456149U (en) | Ultra-high-voltage cross-interconnection cable | |
| CN202093879U (en) | Power cable of layering insulation stranded conductor | |
| CN202134268U (en) | Lighting cable used for air navigation aid in airport | |
| CN206564143U (en) | Power cable | |
| CN205177484U (en) | High -power high -frequency cable | |
| CN105280297A (en) | High frequency power cable | |
| CN102800407A (en) | Concentric type conductor low-voltage cable | |
| CN205230644U (en) | Special insulating tube generating line of railway | |
| CN208225544U (en) | A kind of electric instrument control oil resistant comprehensive cable | |
| CN203689977U (en) | Medium voltage optical fiber composite cable | |
| CN202134255U (en) | Photoelectric composite overhead insulated cable with 10 KV rated voltage | |
| CN203433888U (en) | Low-attenuation communication cable | |
| CN203536071U (en) | Optical fiber composite variable-frequency cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170905 Address after: Haitai 300384 in Tianjin Binhai high tech Zone Huayuan Industrial Zone Development six road No. 6 Haitai green industry base building M1 room 207 Patentee after: TIANJIN ANJIE PUBLIC FACILITIES SERVICES CO., LTD. Address before: 300384 Haitai Binhai New Area of Tianjin Huayuan Industrial Zone Development six road No. 6 Haitai green industry base M1 Patentee before: TIANJIN FANGYUAN ELECTRIC EQUIPMENT CO., LTD. |
|
| 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: 20150513 Termination date: 20190128 |