CN104616821A - Anti-theft high-voltage power transmission power cable - Google Patents
Anti-theft high-voltage power transmission power cable Download PDFInfo
- Publication number
- CN104616821A CN104616821A CN201510102331.0A CN201510102331A CN104616821A CN 104616821 A CN104616821 A CN 104616821A CN 201510102331 A CN201510102331 A CN 201510102331A CN 104616821 A CN104616821 A CN 104616821A
- Authority
- CN
- China
- Prior art keywords
- unit
- power cable
- wire
- resistance
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G2200/00—Indexing scheme relating to installation of electric cables or lines covered by H02G
- H02G2200/10—Prevention of theft of valuable metals
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an anti-theft high-voltage power transmission power cable which comprises four cable cores, insulating layers, shielding layers and protection layers, wherein the insulating layers, the shielding layers and the protection layers are arranged outside the four cable cores in sequence; the anti-theft high-voltage power transmission power cable is characterized by comprising a steel wire rope; the shapes of the four cable cores are completely the same; the four cable cores form a circular ring; the steel wire rope is positioned in the circular ring; the anti-theft high-voltage power transmission power cable further comprises a first lead wire, a second lead wire, a direct current power supply, a current detection unit, a controller unit, a first wireless communication unit, a second wireless communication unit, a main controller unit, an alarming unit and a display unit. According to the anti-theft high-voltage power transmission power cable, a user can know the stealing location as soon as a thief steals a protective layer of the power cable, so that the safety of the power transmission line is effectively protected; furthermore, the diameter of the power cable is smaller, and the power cable is unlikely to break.
Description
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 the second largest industry that China is only second to automobile industry, and product variety Service Efficiency and domestic market occupation rate are all more than 90%.Worldwide, the Chinese electric wire gross output value exceedes the U.S., becomes first electric wire producing country in the world.Along with Chinese 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, as the consumption of the aortal power cable of national economy and the scope of application increasing.Power cable is the cable for transmitting and distribute electric energy.Be usually used in Urban Underground electrical network, the lead line in power station, the in-line power of industrial and mining enterprises and cross river, excessively extra large submarine transmission line.In power circuit, the proportion shared by power cable increases just gradually.Power cable is in order to transmission with distribute the cable product of high-power power in the basic routing line of electric power system, comprising the power cable of 1-500KV and the various insulation of above various electric pressure.The basic structure of power cable is made up of core (conductor), insulating barrier, screen and protective layer four part.Core is the current-carrying part of power cable, is used for transmission of electric energy, is the major part of power cable.Insulating barrier is isolated from each other between core and the earth and out of phase core on electrically, and ensureing power delivery, is indispensable part in power cable structure.Screen, because the current ratio that electric power cable passes through is comparatively large, can produce magnetic field around electric current, in order to not affect other element, and can this electromagnetic-field-shielded in cable so add screen.The effect of protective layer is protection power cable from the intrusion of introduced contaminants and moisture, and prevents external force from directly damaging power cable.
Power cable can be divided into core and overcoat (overcoat refers to insulating barrier, screen and protective layer) two large divisions structure; be positioned at the core of innermost layer for electric energy transmitting; the overcoat be rolled in outside core has sandwich construction, realizes the functions such as shielding, insulation, anti-outside destroy respectively.At high pressure and above defeated, power distribution network; because 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, has occurred the stolen event of a lot of 10kV power cable overcoat in this year.Because cable laying is hidden, and the anti-system of prison is not set, therefore cable shield is stolen does not cause power failure and being not easily found of short circuit accident, but leaves very large potential safety hazard.After some cable shield are stolen, although temporarily do not occur to have a power failure or personnel casualty accidents, but cable insulation degree of protection declines to a great extent, switching overvoltage, lightning overvoltage, harmonic wave overvoltage, personnel trample, damaged by rats all will trigger short circuit, a certain phase short circuit blast often causes many feeder lines short circuit simultaneously of laying in one ditch, cause large-area power-cuts, as can be seen here, robber has buried the serious potential safety hazard in many places to electric power system.Due to many overcoats 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, make the safety of electric power system and periphery personnel and environment be subject to serious threat.
Space availability ratio between existing power cable core and core is very low, and the line of whole cable is through thicker.And because power cable often needs bending so the frequent core of power cable often easily fractures in the process of laying, one end fractures and is very difficult to search concrete breakpoint.
By above description, can find just can find at once when theft power cable overcoat for robber and the space availability ratio in the place and raising core that navigate to theft makes the wire diameter of power cable less, during the larger bending of the intensity of power cable, more difficult fractureing is all the problem highly studied.
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 large potential safety hazard to transmission line, just can't find theft place at once when robber steals anti-theft high-voltage transmission of electricity power cable overcoat at present.Current power cable wire diameter is comparatively thick, and easily fracture, core space availability ratio is not high yet, causes whole power cable thicker.
In order to realize solving above technical problem, the technical solution adopted in the present invention is: anti-theft high-voltage transmission of electricity power cable, comprises four cores, insulating barrier, screen, protective layers; The outside of four cores sets gradually insulating barrier, screen, protective layer; It is characterized in that, comprise steel wire rope; The shape of four cores is identical, and four cores form an annulus, and steel wire rope is positioned at the inside of described annulus;
Also comprise the first wire, the second wire, DC power supply, current detecting unit, controller unit, the first wireless communication unit, the second wireless communication unit, master controller unit, alarm unit, display unit;
The first described wire and the second wire are arranged at protective layer inside; First wire, the second wire are identical with the length of core;
One end of one end electrical connection current detecting unit of the first wire, one end of the other end electrical connection DC power supply of current detecting unit, the other end of DC power supply is electrically connected one end of the second wire;
The current signal of current detecting unit is input to controller unit, and master controller unit is electrically connected with display unit, alarm unit;
Controller unit is by the first wireless communication unit, the second wireless communication unit and master controller unit communication;
The resistance of equidistant N number of similar resistance in parallel between first wire with the second wire;
Wherein, N number of resistance called after the 1st resistance successively from left to right, the 2nd resistance, the i-th resistance, N resistance; 1≤i≤N;
1st resistance and N resistance lay respectively at the both ends of core; Distance between adjacent resistor is equal.
Further, the voltage of described DC power supply is 25V.
Further, described controller unit adopts AT89S51 single-chip microcomputer.
Further, the distance between adjacent resistor is less than 200 meters.
Further, described current detecting unit is the DC ammeter with current signal output end mouth.
Further, described alarm unit can adopt sound and light alarm.
Further, the second described wireless communication unit, master controller unit, display unit can adopt a smart mobile phone to realize.
Compared with prior art, the invention has the advantages that: the wire diameter of the more similar power cable of wire diameter of power cable of the present invention is less, and is not easy when bending to fracture.Anti-theft high-voltage transmission of electricity power cable provided by the invention, when the place just immediately can knowing theft that time that robber steals power cable overcoat, effectively protects the safety of transmission line; Meanwhile, because robber wants to steal core, first protective layer must be destroyed, so power cable of the present invention also effectively prevent robber steal power cable core.
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 the schematic diagram of the protective layer part of power cable of the present invention.
Fig. 3 is that the present invention steals an observation circuit principle schematic.
Wherein, 1 is core, and 10 is steel wire ropes, and 2 is insulating barriers, and 3 is screens, and 4 is protective layers, and 5 is protective layers, and 6 is wires.
Embodiment
Below in conjunction with accompanying drawing, invention is described in further detail.
With reference to Fig. 1,2,3, anti-theft high-voltage transmission of electricity power cable, comprises four cores, insulating barrier, screen, protective layers; The outside of four cores sets gradually insulating barrier, screen, protective layer; Comprise steel wire rope; The shape of four cores is identical, and four cores form an annulus, and steel wire rope is positioned at the inside of described annulus; Also comprise the first wire, the second wire, DC power supply, current detecting unit, controller unit, the first wireless communication unit, the second wireless communication unit, master controller unit, alarm unit, display unit; First wire and the second wire are arranged at protective layer inside; First wire, the second wire are identical with the length of core; One end of one end electrical connection current detecting unit of the first wire, one end of the other end electrical connection DC power supply of current detecting unit, the other end of DC power supply is electrically connected one end of the second wire; The current signal of current detecting unit is input to controller unit, and master controller unit is electrically connected with display unit, alarm unit; Controller unit is by the first wireless communication unit, the second wireless communication unit and master controller unit communication; Suppose the total length 1900 meters of power cable, the resistance of equidistant 20 similar resistance in parallel between the first wire with the second wire;
Wherein, 20 resistance called after the 1st resistance successively from left to right, the 2nd resistance, the i-th resistance, the 20th resistance; 1≤i≤20;
1st resistance and the 20th resistance lay respectively at the both ends of core; Distance between adjacent resistor is equal is all 100 meters.The voltage of DC power supply is 25V, and resistance is 1000 ohm.Controller unit adopts AT89S51 single-chip microcomputer.Wherein, described current detecting unit is the DC ammeter with current signal output end mouth.
The second described wireless communication unit, master controller unit, display unit can adopt a smart mobile phone to realize.The signal that so controller unit detects directly is sent to above smart mobile phone.
The principle that the present invention can realize stealing some monitoring illustrates: no matter robber steals the core of power cable; or the overcoat (overcoat comprises insulating barrier, screen and protective layer) of theft power cable; so all need first to destroy protective layer, destruction first wire and the second wire once destruction protective layer is bound to.When the first wire and the second wire are not yet destroyed, the current value that current detecting unit detects should be: I=U/R=25V ÷ 50=0.5A (the resistor coupled in parallel resistance of 20 1000 ohm is 50 ohm).Suppose that the place that robber steals calculates the 950th meter from left end, 950 ÷ 100=9.5, namely between the 10th resistance and the 11st resistance, so now 10 resistance of only remaining parallel connection in circuit, the current value that now current detecting unit detects should be: I=U/R=25V ÷ 100=0.25A (the resistor coupled in parallel resistance of 10 1000 ohm is 100 ohm).Now, concrete current value and theft place corresponding to this current value can be sent to smart mobile phone by controller unit, and smart mobile phone display theft place is between the 10th resistance and the 11st resistance.For the ease of understand be first suppose to be aware of concrete theft point herein, when not knowing theft point conversely, the resistance number be parallel in circuit can be calculated according to current value, owing to being all the equally spaced approximate location that can calculate theft point again according to resistance number between resistance, error is within 100 meters.
Claims (7)
1. anti-theft high-voltage transmission of electricity power cable, comprises four cores, insulating barrier, screen, protective layers; The outside of four cores sets gradually insulating barrier, screen, protective layer; It is characterized in that, comprise steel wire rope; The shape of four cores is identical, and four cores form an annulus, and steel wire rope is positioned at the inside of described annulus;
Also comprise the first wire, the second wire, DC power supply, current detecting unit, controller unit, the first wireless communication unit, the second wireless communication unit, master controller unit, alarm unit, display unit;
The first described wire and the second wire are arranged at protective layer inside; First wire, the second wire are identical with the length of core;
One end of one end electrical connection current detecting unit of the first wire, one end of the other end electrical connection DC power supply of current detecting unit, the other end of DC power supply is electrically connected one end of the second wire;
The current signal of current detecting unit is input to controller unit, and master controller unit is electrically connected with display unit, alarm unit;
Controller unit is by the first wireless communication unit, the second wireless communication unit and master controller unit communication;
The resistance of equidistant N number of similar resistance in parallel between first wire with the second wire;
Wherein, N number of resistance called after the 1st resistance successively from left to right, the 2nd resistance, the i-th resistance, N resistance; 1≤i≤N;
1st resistance and N resistance lay respectively at the both ends of core; Distance between adjacent resistor is equal.
2. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, the voltage of described DC power supply is 25V.
3. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, described controller unit adopts AT89S51 single-chip microcomputer.
4. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, the distance between adjacent resistor is less than 200 meters.
5. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, described current detecting unit is the DC ammeter with current signal output end mouth.
6. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, described alarm unit can adopt sound and light alarm.
7. anti-theft high-voltage transmission of electricity power cable according to claim 1, it is characterized in that, the second described wireless communication unit, master controller unit, display unit can adopt a smart mobile phone to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102331.0A CN104616821A (en) | 2015-03-09 | 2015-03-09 | Anti-theft high-voltage power transmission power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102331.0A CN104616821A (en) | 2015-03-09 | 2015-03-09 | Anti-theft high-voltage power transmission power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104616821A true CN104616821A (en) | 2015-05-13 |
Family
ID=53151236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510102331.0A Pending CN104616821A (en) | 2015-03-09 | 2015-03-09 | Anti-theft high-voltage power transmission power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104616821A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777342Y (en) * | 2005-01-20 | 2006-05-03 | 张立 | Real-time positioned monitoring device for anti theft of delivering pipeline |
| CN201117323Y (en) * | 2007-08-29 | 2008-09-17 | 王世祥 | Anti-theft cable |
| 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 |
| US8860580B1 (en) * | 2011-04-27 | 2014-10-14 | Thomas K. Wong | System for protecting against theft of metal wire and other objects |
| CN104376913A (en) * | 2014-12-05 | 2015-02-25 | 国家电网公司 | High-voltage power cable |
| CN204423991U (en) * | 2015-03-09 | 2015-06-24 | 国家电网公司 | Anti-theft high-voltage transmission of electricity power cable |
-
2015
- 2015-03-09 CN CN201510102331.0A patent/CN104616821A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777342Y (en) * | 2005-01-20 | 2006-05-03 | 张立 | Real-time positioned monitoring device for anti theft of delivering pipeline |
| CN201117323Y (en) * | 2007-08-29 | 2008-09-17 | 王世祥 | Anti-theft cable |
| US8860580B1 (en) * | 2011-04-27 | 2014-10-14 | Thomas K. Wong | System for protecting against theft of metal wire and other objects |
| 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 |
| CN204423991U (en) * | 2015-03-09 | 2015-06-24 | 国家电网公司 | Anti-theft high-voltage transmission of electricity power cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104376913B (en) | High voltage power cable | |
| CN104464933B (en) | High voltage power transmission power cable | |
| CN104766662B (en) | Electric power system anti-theft high-voltage is transmitted electricity power cable | |
| CN204537746U (en) | Electric power system anti-theft high-voltage is transmitted electricity power cable | |
| CN204423991U (en) | Anti-theft high-voltage transmission of electricity power cable | |
| CN204516451U (en) | High voltage power transmission power cable | |
| CN104376914B (en) | High pressure transmission of electricity power cable | |
| CN204516460U (en) | Electric power system anti-theft high-voltage is transmitted electricity power cable | |
| CN105161204B (en) | Electric power system anti-theft high-voltage is transmitted electricity power cable | |
| CN104658683A (en) | Power cable for high voltage transmission | |
| CN104616821A (en) | Anti-theft high-voltage power transmission power cable | |
| CN104851507B (en) | Electric power system 15kV anti-theft high-voltage transmission of electricity power cable | |
| CN104464943A (en) | Anti-breakage high-voltage transmission power cable | |
| CN104766671B (en) | Power system anti-theft high-voltage is transmitted electricity power cable | |
| CN104392788A (en) | Power cable for high-voltage power transmission | |
| CN105761831A (en) | 15KV anti-theft high voltage transmission power cable used for power supply system | |
| CN104392797A (en) | Power cable for high-voltage power transmission | |
| CN105761832A (en) | 15KV anti-theft high voltage transmission power cable used for power supply system | |
| CN104637624A (en) | 35KV high-voltage transmission power cable | |
| CN104464934B (en) | High voltage power transmission power cable | |
| CN110600185A (en) | Power cable anti-theft device | |
| CN110600186A (en) | High-voltage power cable anti-theft system | |
| CN110391046A (en) | A kind of anti-theft high-voltage transmission of electricity power cable | |
| CN104538108B (en) | High voltage power transmission power cable | |
| CN104505166A (en) | High-voltage transmission power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150513 |
|
| RJ01 | Rejection of invention patent application after publication |