CN105761832A - 15KV anti-theft high voltage transmission power cable used for power supply system - Google Patents
15KV anti-theft high voltage transmission power cable used for power supply system Download PDFInfo
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- CN105761832A CN105761832A CN201610258334.8A CN201610258334A CN105761832A CN 105761832 A CN105761832 A CN 105761832A CN 201610258334 A CN201610258334 A CN 201610258334A CN 105761832 A CN105761832 A CN 105761832A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a 15KV anti-theft high voltage transmission power cable used for a power supply system. The cable comprises four wire cores, an insulating layer, a shielding layer, a protective layer and a steel wire rope. The insulating layer, the shielding layer and the protective layer are arranged outside the four wire cores in sequence. An insulating isolation layer is arranged between every two adjacent wire cores. The four wire cores are identically shaped and form a circular ring, and the steel wire rope is disposed inside the circular ring. The cable further comprises a conductor, a first direct-current power supply, a second direct-current power supply, a first current detection unit, a second current detection unit, a field controller unit, a first wireless communication unit, a second wireless communication unit, a remote controller unit, an alarm unit, and a display unit. The voltage of the two ends of the first direct-current power supply is equal to the voltage of the two ends of the second direct-current power supply. The conductor is arranged in the protective layer, and the two ends of the conductor are respectively disposed at the two ends of the anti-theft high voltage transmission power cable. The anti-theft high voltage transmission power cable provided by the invention effectively protects the safety of transmission lines.
Description
The application is the applying date is 2015-4-30, and application number is 201510217520.2, and denomination of invention is the divisional application of the patent application of electric power system 15KV anti-theft high-voltage transmission of electricity power cable.
Technical field
The present invention relates to a kind of anti-theft high-voltage transmission of electricity power cable, belong to high voltage power transmission technical field.
Background technology
Wires and cables industry is that the second largest industry that China is only second to automobile industry, product variety Service Efficiency and domestic market occupation rate are all more than 90%.Worldwide, China's electric wire gross output value has exceeded the U.S., becomes the first big electric wire manufacturing country in the world.Along with China's wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.Along with the fast development of national economy, consumption and the scope of use as the aortal power cable of national economy are increasing.Power cable is the cable for transmitting and distribute electric energy.Be usually used in Urban Underground electrical network, the lead line of electric station, industrial and mining establishment in-line power and cross river, excessively sea submarine transmission line.In power circuit, the proportion shared by power cable is just gradually increased.Power cable is in order to transmit and to distribute the cable product of high-power power in the basic routing line of power system, including the power cable of 1-500KV and the various insulation of any of the above electric pressure.The basic structure of power cable is made up of core (conductor), insulating barrier, screen layer and protective layer four part.Core is the current-carrying part of power cable, is used for carrying electric energy, is the major part of power cable.Insulating barrier is will to be electrically isolated from each other between core and the earth and out of phase core, it is ensured that electric energy is carried, and is indispensable ingredient in power cable structure.Screen layer, because the electric current that electric power cable passes through is relatively larger, can produce magnetic field around electric current, in order to not affect other element, and can this electromagnetic-field-shielded in cable so adding screen layer.The effect of protective layer is the intrusion from introduced contaminants and moisture of the protection power cable, and prevents external force from directly damaging power cable.
Power cable can be divided into core and overcoat (overcoat refers to insulating barrier, screen layer and protective layer) two large divisions structure; it is positioned at the core of innermost layer for transmitting electric energy; the overcoat being rolled in outside core has multiple structure, realizes the functions such as shielding, insulation, anti-external force destruction respectively.At high pressure and above defeated, power distribution network; owing to voltage is higher, theft live electric cable often can cause thief's injures and deaths, therefore; it is not the copper material aiming at wire that present robber steals power circuit, occurs in that a lot of 10kV stolen event of power cable overcoat in this year.Owing to cable laying is hidden, and it is not provided with supervising anti-system, therefore cable shield is stolen does not cause power failure and being not easily found of short circuit accident, but leave very big potential safety hazard.After some cable shield are stolen, although temporarily not occurring to have a power failure or personnel casualty accidents, but cable insulation degree of protection declines to a great extent, switching overvoltage, lightning surge, harmonic wave overvoltage, personnel trample, damaged by rats all will trigger short circuit, a certain phase short circuit blast often causes a plurality of feeder line short circuit simultaneously of laying in one ditch, cause large-area power-cuts, it can be seen that, robber has buried, to power system, the potential safety hazard that many places are serious.Due to a plurality of overcoat stolen after cable be imbedded in underground, power department does not have the security situation of special monitoring of equipment cable so far, cannot learn that the overcoat of power cable is destroyed, thus can not adopt remedial measures in time, the safety of power system and periphery personnel and environment is made to be subject to serious threat.
Pass through above description, it is possible to find just to know immediately that when theft power cable overcoat theft is being a problem highly studied for robber.Existing power cable core space availability ratio is low and stretch-proof bending resistance is poor simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is: be difficult to be found when stealing the overcoat of high voltage power transmission power cable for current robber, leave very big potential safety hazard to transmission line of electricity, just can't steal at once when robber steals anti-theft high-voltage transmission of electricity power cable overcoat at present and occur.
In order to solve above technical problem, the technical solution adopted in the present invention is: anti-theft high-voltage transmission of electricity power cable, including four cores, insulating barrier, screen layer, protective layer, steel wire ropes；The outside of four cores sets gradually insulating barrier, screen layer, protective layer；Dielectric isolation layer is set between core and core；The shape of four cores is identical, and four core one annulus of composition, steel wire rope is positioned at the inside of described annulus；
Also include wire, the first DC source, the second DC source, the first current detecting unit, the second current detecting unit, field controller unit, the first wireless communication unit, the second wireless communication unit, remote controller unit, alarm unit, display unit；The voltage at the first DC source two ends is equal to the voltage at the second DC source two ends；
Described wire is arranged in protective layer, and the two ends of wire lay respectively at the two ends of described anti-theft high-voltage transmission of electricity power cable；
One end of wire electrically connects the positive pole of the first DC source, and the negative electricity of the first DC source connects one end of the first current detecting unit, and the other end of the first current detecting unit is used for ground connection；
The other end of wire electrically connects the positive pole of the second DC source, and the negative electricity of the second DC source connects one end of the second current detecting unit, and the other end of the second current detecting unit is used for ground connection；
The digital signal output end of the first current detecting unit and the digital signal output end of the second current detecting unit connect the I/O port of field controller unit respectively；
First wireless communication unit electrically connects with field controller unit；
Second wireless communication unit electrically connects with remote controller unit；
Field controller unit is by the first wireless communication unit, the second wireless communication unit and remote controller unit communication；
Alarm unit, display unit electrically connect with remote controller unit respectively.
Further, described alarm unit adopts sound and light alarm.
Further, described display unit adopts LED display.
Further, the first current detecting unit, the second current detecting unit all adopt the digital DC table with digital output port.
Further, described the first wireless communication unit, the second wireless communication unit adopt GPRS module.
Further, field controller unit, remote controller unit all adopt ATmega16 single-chip microcomputer.
Compared with prior art, it is an advantage of the current invention that: first that anti-theft high-voltage provided by the invention transmission of electricity power cable occurs when robber steals just can immediately steal that time of power cable overcoat, is effectively protected the safety of transmission line of electricity；Meanwhile, because robber thinks the words of theft core, it is necessary to first destroy protective layer, so the power cable of the present invention also effectively prevent robber and steals power cable core.Second, the circuit of guarding portion of the present invention was do not consume electric energy before wire is not stolen.3rd, the space availability ratio of core of the present invention is high, and the stretch-proof bending resistance of power cable is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of anti-theft high-voltage of the present invention transmission of electricity power cable.
Fig. 2 is that the present invention steals an observation circuit principle schematic.
Wherein, 1 is core, and 2 is insulating barrier, and 3 is screen layer, and 4 is protective layer, and 5 is wire, and 6 is steel wire rope.
Detailed description of the invention
Below in conjunction with accompanying drawing, invention is described in further detail.
Specific embodiment 1: with reference to Fig. 1,2, a kind of anti-theft high-voltage transmission of electricity power cable, including four cores, insulating barrier, screen layer, protective layer, steel wire ropes；The outside of four cores sets gradually insulating barrier, screen layer, protective layer；Dielectric isolation layer is set between core and core；The shape of four cores is identical, and four core one annulus of composition, steel wire rope is positioned at the inside of described annulus；Also include wire, the first DC source, the second DC source, the first current detecting unit, the second current detecting unit, field controller unit, the first wireless communication unit, the second wireless communication unit, remote controller unit, alarm unit, display unit；The voltage at the first DC source two ends is equal to the voltage at the second DC source two ends；
Described wire is arranged in protective layer, and the two ends of wire lay respectively at the two ends of described anti-theft high-voltage transmission of electricity power cable；One end of wire electrically connects the positive pole of the first DC source, and the negative electricity of the first DC source connects one end of the first current detecting unit, and the other end of the first current detecting unit is used for ground connection；The other end of wire electrically connects the positive pole of the second DC source, and the negative electricity of the second DC source connects one end of the second current detecting unit, and the other end of the second current detecting unit is used for ground connection；The digital signal output end of the first current detecting unit and the digital signal output end of the second current detecting unit connect the I/O port of field controller unit respectively；First wireless communication unit electrically connects with field controller unit；Second wireless communication unit electrically connects with remote controller unit；Field controller unit is by the first wireless communication unit, the second wireless communication unit and remote controller unit communication；Alarm unit, display unit electrically connect with remote controller unit respectively.
Wherein, alarm unit adopts sound and light alarm.Display unit adopts LED display.First current detecting unit, the second current detecting unit all adopt the digital DC table with digital output port.First wireless communication unit, the second wireless communication unit adopt GPRS module.Field controller unit, remote controller unit all adopt ATmega16 single-chip microcomputer.
Specific embodiment 2: display unit, alarm unit, the second wireless communication unit and remote controller unit can adopt a smart mobile phone to realize.
The present invention is capable of the principle of theft point monitoring and illustrates: no matter robber steals the core of power cable; or steal the overcoat (overcoat includes insulating barrier, screen layer and protective layer) of power cable; so being required for first destroying protective layer, being bound to destroy wire once destroy protective layer.Owing to the two ends of wire are all the positive pole connecting the first DC source and the second DC source respectively, and the voltage of the first DC source and the second DC source is equal, so electric current will not be produced in wire, once robber steals the words of power cable, can first cut off wire, using metal shear to cut off wire in a flash, be equivalent to cut short a little by shear and human body grounding.At this time, the wire originally not producing electric current can produce in a flash electric current at this, and the sense of current is pointed to by the first DC source, the second DC power anode and cuts breakpoint direction.The moment cut off, first DC detecting unit and the second DC detecting unit all can detect electric current, after field controller unit detects that wire produces electric current, alarm signal is sent at once to remote controller unit, after remote controller unit receives alarm signal, control alarm unit and send sound and light alarm.The wire within power cable protective layer of the present invention, is equivalent in a flash ground connection what cut off, the voltage according to the resistivity of wire, wire diameter and the electric current detected and DC source, it is possible to be easy to calculate the positional distance cut off a little.There is theft occurring so the present invention not only can know the very first time, theft place can be calculated simultaneously the very first time.
Claims (2)
1. electric power system 15KV anti-theft high-voltage transmission of electricity power cable, it is characterised in that include four cores, insulating barrier, screen layer, protective layer, steel wire ropes；The outside of four cores sets gradually insulating barrier, screen layer, protective layer；Dielectric isolation layer is set between core and core；The shape of four cores is identical, and four core one annulus of composition, steel wire rope is positioned at the inside of described annulus；
Also include wire, the first DC source, the second DC source, the first current detecting unit, the second current detecting unit, field controller unit, the first wireless communication unit, the second wireless communication unit, remote controller unit, alarm unit, display unit；The voltage at the first DC source two ends is equal to the voltage at the second DC source two ends；
Described wire is arranged in protective layer, and the two ends of wire lay respectively at the two ends of described anti-theft high-voltage transmission of electricity power cable；
One end of wire electrically connects the positive pole of the first DC source, and the negative electricity of the first DC source connects one end of the first current detecting unit, and the other end of the first current detecting unit is used for ground connection；
The other end of wire electrically connects the positive pole of the second DC source, and the negative electricity of the second DC source connects one end of the second current detecting unit, and the other end of the second current detecting unit is used for ground connection；
The digital signal output end of the first current detecting unit and the digital signal output end of the second current detecting unit connect the I/O port of field controller unit respectively；
First wireless communication unit electrically connects with field controller unit；
Second wireless communication unit electrically connects with remote controller unit；
Field controller unit is by the first wireless communication unit, the second wireless communication unit and remote controller unit communication；
Alarm unit, display unit electrically connect with remote controller unit respectively.
Described alarm unit adopts sound and light alarm.
Described display unit adopts LED display.
First current detecting unit, the second current detecting unit all adopt the digital DC table with digital output port.
Described the first wireless communication unit, the second wireless communication unit adopt GPRS module.
Field controller unit, remote controller unit all adopt ATmega16 single-chip microcomputer.
2. electric power system 15KV anti-theft high-voltage according to claim 1 transmission of electricity power cable, it is characterized in that, owing to the two ends of wire are all the positive pole connecting the first DC source and the second DC source respectively, and the voltage of the first DC source and the second DC source is equal, so electric current will not be produced in wire, once robber steals power cable, can first cut off wire, using metal shear to cut off wire in a flash, be equivalent to cut short a little by shear and human body grounding.At this time, the wire originally not producing electric current can produce in a flash electric current at this, and the sense of current is pointed to by the first DC source, the second DC power anode and cuts breakpoint direction.The moment cut off, first DC detecting unit and the second DC detecting unit all can detect electric current, after field controller unit detects that wire produces electric current, alarm signal is sent at once to remote controller unit, after remote controller unit receives alarm signal, control alarm unit and send sound and light alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258334.8A CN105761832A (en) | 2015-04-30 | 2015-04-30 | 15KV anti-theft high voltage transmission power cable used for power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258334.8A CN105761832A (en) | 2015-04-30 | 2015-04-30 | 15KV anti-theft high voltage transmission power cable used for power supply system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510217520.2A Division CN104851507B (en) | 2015-04-30 | 2015-04-30 | Electric power system 15kV anti-theft high-voltage transmission of electricity power cable |
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| Publication Number | Publication Date |
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| CN105761832A true CN105761832A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610258334.8A Pending CN105761832A (en) | 2015-04-30 | 2015-04-30 | 15KV anti-theft high voltage transmission power cable used for power supply system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120105230A1 (en) * | 2010-10-27 | 2012-05-03 | Thomas Bockstoce | Anti-theft sensor system |
| CN202632805U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum core irregular compressing conductor fire-resisting cable |
| CN104376913A (en) * | 2014-12-05 | 2015-02-25 | 国家电网公司 | High-voltage power cable |
-
2015
- 2015-04-30 CN CN201610258334.8A patent/CN105761832A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120105230A1 (en) * | 2010-10-27 | 2012-05-03 | Thomas Bockstoce | Anti-theft sensor system |
| CN202632805U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum core irregular compressing conductor fire-resisting cable |
| CN104376913A (en) * | 2014-12-05 | 2015-02-25 | 国家电网公司 | High-voltage power cable |
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Application publication date: 20160713 |