CN104505166B - High voltage power transmission power cable - Google Patents
High voltage power transmission power cable Download PDFInfo
- Publication number
- CN104505166B CN104505166B CN201410753651.8A CN201410753651A CN104505166B CN 104505166 B CN104505166 B CN 104505166B CN 201410753651 A CN201410753651 A CN 201410753651A CN 104505166 B CN104505166 B CN 104505166B
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- Prior art keywords
- wire
- resistance
- power cable
- unit
- privates
- 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
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000011241 protective layer Substances 0.000 claims abstract description 32
- 239000010410 layer Substances 0.000 claims abstract description 29
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 230000004888 barrier function Effects 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
Classifications
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
-
- 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
-
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of high voltage power transmission power cable, including core, insulating barrier, screen layer, protective layer；The outside of core sets gradually insulating barrier, screen layer, protective layer；Also include conductor metal bar；Described conductor metal bar passes insulating barrier, screen layer, protective layer, and one end electrical connection core of conductor metal bar, the other end is positioned at the outside of protective layer；The outer surface of described conductor metal bar arranges waterproof insulating layer；The cross section of described core is annular；Also include the first wire, the second wire, privates；Described the first wire, the second wire, privates are the most tangent；Described the first wire, the second wire, privates are arranged in protective layer；Described the first wire, the second wire, privates are parallel with core respectively；The high voltage power transmission power cable that the present invention provides, when robber steals the place that just can immediately know theft that time of power cable overcoat.
Description
Technical field
The present invention relates to a kind of high voltage power transmission power cable, belong to high voltage power transmission technical field.
Background technology
Along with the fast development of national economy, as the consumption of power cable of national economy aorta with use model
Enclose increasing.Power cable is the cable for transmitting and distribute electric energy.It is usually used in Urban Underground electrical network, sends out
The lead line in power station, the in-line power of industrial and mining establishment and the submarine transmission line in mistake river, excessively sea.At power circuit
In, the proportion shared by power cable is just gradually increased.Power cable be in the basic routing line of power system in order to
Transmission and the cable product of distribution high-power power, including 1-500KV and any of the above electric pressure,
The power cable of various insulation.
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
To be electrically isolated from each other between core and the earth and out of phase core, it is ensured that electric energy carries, be electric power electricity
Indispensable ingredient in cable structure.Screen layer, because the current ratio that electric power cable passes through is relatively big, electric current
Around can produce magnetic field, in order to not affect other element, so add screen layer can this electromagnetic-field-shielded
In cable.The effect of protective layer be protection power cable from introduced contaminants and the intrusion of moisture, and outside preventing
Power directly damages power cable.
Power cable can be divided into core and overcoat from structure, and (overcoat refers to insulating barrier, screen layer and protection
Layer) two large divisions, it is positioned at the core of innermost layer for transmitting electric energy, the overcoat being rolled in outside core has multilamellar
Structure, realizes the functions such as shielding, insulation, anti-external force destruction respectively.At high pressure and above defeated, power distribution network, by
Higher in voltage, theft live electric cable often can cause thief's injures and deaths, and therefore, present robber steals power circuit
It not the most the copper material aiming at wire, occur in that a lot of 10kV stolen thing of power cable overcoat in this year
Part.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 short circuit accident be difficult to be found, but leave the biggest 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 declining to a great extent, and operates
Voltage, lightning surge, harmonic wave overvoltage, personnel trample, damaged by rats, all will trigger short circuit, the short circuit of a certain phase
Blast, often causes a plurality of feeder line short circuit simultaneously of laying in one ditch, causes large-area power-cuts, it can be seen that,
Robber has buried, to power system, the potential safety hazard that many places are serious.Owing to the cable after a plurality of overcoat is stolen buries
Ensconcing underground, power department does not has the security situation of special monitoring of equipment cable so far, it is impossible to learn electric power electricity
The overcoat of cable is destroyed, thus can not adopt remedial measures in time, makes power system and periphery personnel and environment
Safety by serious threat.
By above description, it appeared that just can stand stealing power cable overcoat when for robber
Carving the place finding and navigating to steal is the problem highly studied.
Existing power cable structure is the simplest, and open circuit problem once occurs in power cable, searches very
Difficulty.
Summary of the invention
The technical problem to be solved in the present invention is: first, and robber steals the overcoat of high voltage power transmission power cable
Time be difficult to be found, leave the biggest potential safety hazard to transmission line of electricity, high pressure can't be stolen robber at present
Theft place is found the most at once the when of transmission of electricity power cable overcoat.Second, existing power cable once goes out
Existing open circuit problem, searches extremely difficult.
In order to realize solving above technical problem, the technical solution adopted in the present invention is: high voltage power transmission electric power
Cable, including core, insulating barrier, screen layer, protective layer；The outside of core sets gradually insulating barrier, shielding
Layer, protective layer；It is characterized in that, also include conductor metal bar；Described conductor metal bar through insulating barrier,
Screen layer, protective layer, one end electrical connection core of conductor metal bar, the other end is positioned at the outside of protective layer；Institute
The outer surface of the conductor metal bar stated arranges waterproof insulating layer；
The cross section of described core is annular；
Also include the first wire, the second wire, privates；Described the first wire, the second wire, the 3rd
The outer surface of wire is the most tangent；Described the first wire, the second wire, privates are embedded in protective layer；
Described the first wire, the second wire, privates are parallel with core respectively；
First wire, the second wire and privates are outside equipped with insulating barrier；
Also include the first resistance, the second resistance, the 3rd resistance, an AD unit, the 2nd AD unit,
Three AD unit, controller, display unit, alarm unit, the first DC source, the second DC source；
The left end of the first described wire electrically connects one end of the first resistance, the other end of the first resistance electrical connection the
The positive terminals of one DC source, the negative terminals of the first DC source electrically connect one end of the second resistance, and second
The other end of resistance electrically connects the left end of the second wire；
The negative terminals of the first DC source electrically connect the positive terminals of the second DC source simultaneously；Second unidirectional current
One end of negative terminals electrical connection the 3rd resistance in source, a left side for the other end electrical connection privates of the 3rd resistance
End；
Described the first wire, the second wire, the right-hand member of privates do not contact, and are respectively provided with
There is insulation protective jacket；
The voltage signal at the first resistance two ends is input to controller by the oneth AD unit；
The voltage signal at the second resistance two ends is input to controller by the 2nd AD unit；
The voltage signal at the 3rd resistance two ends is input to controller by the 3rd AD unit；
The input of display unit is connected with the display signal output port of controller；
The input of alarm unit is connected with the alarm signal output ends mouth of controller.
Further, the resistance of described the first resistance, the second resistance and the 3rd resistance is equal.
Further, the resistance of described the first resistance, the second resistance and the 3rd resistance is 1 ohm.
Further, the external diameter of described the first wire, the second wire and privates is equal, and insulating layer thickness
Degree is respectively less than 3mm.
Further, the thickness of insulating layer of described the first wire, the second wire and privates is 1mm.
Further, the first described DC source and the voltage of the second DC source are equal, consequently facilitating analysis meter
Calculate theft point.
Further, described controller uses AT89S52 chip microcontroller.
Further, described display unit uses LCD1864 display screen, the theft calculated by controller point
Show.
Further, described alarm unit uses buzzer warning.So robber can be had to exist by sound prompting
Theft power cable.
Further, a described AD unit, the 2nd AD unit, the 3rd AD unit all use ADC0809
Chip.
Compared with prior art, it is an advantage of the current invention that: the high voltage power transmission power cable that the present invention provides, when
Robber steals the place that just can immediately know theft that time of power cable overcoat, is effectively protected defeated
The safety of electric line；Core is hollow beneficially heat radiation；Meanwhile, because if robber wants to steal core, must
Must first destroy protective layer, so the power cable of the present invention also effectively prevent robber and steals power cable core,
And electric energy is not consumed when not yet forming closed-loop path.Once there is open circuit problem in power cable of the present invention, looks into
Look for very easy.
Accompanying drawing explanation
Fig. 1 is the structural representation of high voltage power transmission power cable of the present invention.
Wherein, 1 is core；2 is insulating barrier；3 is screen layer；4 is protective layer；9 is conductor metal bar.
Fig. 2 is the tangent schematic diagram of three of the wires in protective layer.
Wherein, 5 is the first wire；6 is the second wire；7 is privates；8 is protective layer.
Fig. 3 is the theft point real-time observation circuit principle schematic that the present invention relates to.
Detailed description of the invention
Below in conjunction with the accompanying drawings invention is described in further detail.
With reference to Fig. 1,2,3, high voltage power transmission power cable, including core, insulating barrier, screen layer, protective layer；
The outside of core sets gradually insulating barrier, screen layer, protective layer；It is characterized in that, also include conductor metal bar；
Described conductor metal bar passes insulating barrier, screen layer, protective layer, one end electrical connection core of conductor metal bar,
The other end is positioned at the outside of protective layer；The outer surface of described conductor metal bar arranges waterproof insulating layer；
The cross section of described core is annular；
Also include the first wire, the second wire, privates；Described the first wire, the second wire, the 3rd
The outer surface of wire is the most tangent；Described the first wire, the second wire, privates are embedded in protective layer；
Described the first wire, the second wire, privates are parallel with core respectively；
First wire, the second wire and privates are outside equipped with insulating barrier；
Also include the first resistance, the second resistance, the 3rd resistance, an AD unit, the 2nd AD unit,
Three AD unit, controller, display unit, alarm unit, the first DC source, the second DC source；Institute
The left end of the first wire stated electrically connects one end of the first resistance, and the other end of the first resistance electrically connects the first direct current
The positive terminals of power supply, the negative terminals of the first DC source electrically connect one end of the second resistance, the second resistance
The other end electrically connects the left end of the second wire；The negative terminals of the first DC source electrically connect the second unidirectional current simultaneously
The positive terminals in source；One end of negative terminals electrical connection the 3rd resistance of the second DC source, the 3rd resistance another
The left end of one end electrical connection privates；Described the first wire, the second wire, privates right-hand member mutual
Between do not contact, and be provided with insulation protective jacket；The voltage at the first resistance two ends is believed by the oneth AD unit
Number it is input to controller；The voltage signal at the second resistance two ends is input to controller by the 2nd AD unit；3rd
The voltage signal at the 3rd resistance two ends is input to controller by AD unit；The input of display unit and controller
Display signal output port be connected；The alarm signal output ends mouth phase of the input of alarm unit and controller
Even.
Wherein, described controller uses AT89S52 chip microcontroller.Described display unit uses LCD1864
Display screen, described alarm unit uses buzzer warning, so can have robber in theft by sound prompting
Power cable, and the theft place calculated is shown by LCD1864 display screen.Described
One AD unit, the 2nd AD unit, the 3rd AD unit all use ADC0809 chip.
Wherein, the external diameter of described the first wire, the second wire and privates is 3cm, wherein wire
Thickness of insulating layer be 1mm.
In the present embodiment a length of 2000 meters of power cable, then the first wire, the second wire, the 3rd leads
The length of line the most respectively 2000 meters, the first wire, the second wire, the resistance of privates is respectively 10
Ohm, the voltage of the first DC source and the second DC source all selects 30V, the first resistance, the second resistance,
3rd resistance is 1 ohm, ensures that the first resistance, the second resistance, and the voltage at the 3rd resistance two ends is not
Can be more than 5V, such AD unit could normally work.
The present invention is capable of the principle of theft point monitoring in real time: 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, then all need
First to destroy protective layer, owing to protective layer is durable, typically be not easy to destroy, therefore robber must use gold
Belong to shear and cut off protective layer, and inside protective layer, be provided with the first wire, the second wire, privates, by
In the first wire, the second wire, the most tangent and wire the insulating barrier of the external diameter of privates is the thinnest,
When using shears to cut off protective layer when, it is bound to the first wire, the second wire, privates also cuts off,
Exactly at shears, the first wire, the second wire, privates are cut off at that moment, the first wire, second
Wire, the conductor within privates is connected to one piece by metal shear, at least has leading of two wires
Know from experience and be electrically connected by metal shear, it is also possible to the conductor of three of the wires all can be by metal shear electricity
Couple together.
At this time, the circuit in the present invention is the formation of closed-loop path, it may be possible to the first wire and second is led
Line forms closed-loop path, it is also possible to be that the second wire forms closed-loop path with privates, it is also possible to simultaneously
Form two closed-loop paths.Once controller detects that there is electricity at the first resistance, the second resistance or the 3rd resistance two ends
Pressure is it may determine that there is robber stealing power cable.
If, simply the first wire and the second wire define closed-loop path；
First, by the voltage at the first resistance two ends divided by the resistance of the first resistance, the electric current of closed-loop path is obtained；
Secondly, the voltage of the first DC source, divided by the electric current of closed-loop path, has calculated total electricity of closed-loop path
Resistance, all-in resistance deducts the first resistance and the resistance of the second resistance, i.e. obtains total electricity of the first wire and the second wire
Resistance；
Finally, by formula R=ρ L/S, thus calculate theft place.(ρ Yu S is known parameters).
The present invention searches the principle of trip point: the power cable of the present invention is provided with conductor metal bar, once occurs
Power cable breaking problem, can judge rapidly the approximate location of trip point, the most not by conductor metal bar
There will be large-area power-cuts problem.A low-voltage is provided with conductor metal bar by one end of power cable, if
Line conduction illustrates that this section of circuit does not has open circuit, if circuit is not turned on this line broken circuit is described.
Claims (10)
1. high voltage power transmission power cable, including core, insulating barrier, screen layer, protective layer；The outside of core
Set gradually insulating barrier, screen layer, protective layer；It is characterized in that, also include conductor metal bar；Described leads
Body bonding jumper passes insulating barrier, screen layer, protective layer, one end electrical connection core of conductor metal bar, the other end
It is positioned at the outside of protective layer；The outer surface of described conductor metal bar arranges waterproof insulating layer；
The cross section of described core is annular；
Also include the first wire, the second wire, privates；Described the first wire, the second wire, the 3rd
The outer surface of wire is the most tangent；Described the first wire, the second wire, privates are embedded in protective layer；
Described the first wire, the second wire, privates are parallel with core respectively；
First wire, the second wire and privates are outside equipped with insulating barrier；
Also include the first resistance, the second resistance, the 3rd resistance, an AD unit, the 2nd AD unit,
Three AD unit, controller, display unit, alarm unit, the first DC source, the second DC source；
The left end of the first described wire electrically connects one end of the first resistance, the other end of the first resistance electrical connection the
The positive terminals of one DC source, the negative terminals of the first DC source electrically connect one end of the second resistance, and second
The other end of resistance electrically connects the left end of the second wire；
The negative terminals of the first DC source electrically connect the positive terminals of the second DC source simultaneously；Second unidirectional current
One end of negative terminals electrical connection the 3rd resistance in source, a left side for the other end electrical connection privates of the 3rd resistance
End；
Described the first wire, the second wire, the right-hand member of privates do not contact, and are respectively provided with
There is insulation protective jacket；
The voltage signal at the first resistance two ends is input to controller by the oneth AD unit；
The voltage signal at the second resistance two ends is input to controller by the 2nd AD unit；
The voltage signal at the 3rd resistance two ends is input to controller by the 3rd AD unit；
The input of display unit is connected with the display signal output port of controller；
The input of alarm unit is connected with the alarm signal output ends mouth of controller.
High voltage power transmission power cable the most according to claim 1, it is characterised in that the first described electricity
The resistance of resistance, the second resistance and the 3rd resistance is equal.
High voltage power transmission power cable the most according to claim 2, it is characterised in that the first described electricity
The resistance of resistance, the second resistance and the 3rd resistance is 1 ohm.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described first is led
The external diameter of line, the second wire and privates is equal, and thickness of insulating layer is respectively less than 3mm.
High voltage power transmission power cable the most according to claim 4, it is characterised in that described first is led
The thickness of insulating layer of line, the second wire and privates is 1mm.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described first is straight
The voltage of stream power supply and the second DC source is equal.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described controller
Use AT89S52 chip microcontroller.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described display list
Unit uses LCD1864 display screen.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described warning list
Unit uses buzzer warning.
High voltage power transmission power cable the most according to claim 1, it is characterised in that described first
AD unit, the 2nd AD unit, the 3rd AD unit all use ADC0809 chip.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753651.8A CN104505166B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
| CN201610143721.7A CN105810342A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610144118.0A CN105702366A (en) | 2014-12-10 | 2014-12-10 | High-voltage transmission power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753651.8A CN104505166B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147728.6A Division CN105655047A (en) | 2014-12-10 | 2014-12-10 | High-voltage transmission power cable |
| CN201610143721.7A Division CN105810342A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610144118.0A Division CN105702366A (en) | 2014-12-10 | 2014-12-10 | High-voltage transmission power cable |
| CN201610148175.6A Division CN105679447A (en) | 2014-12-10 | 2014-12-10 | Power cable for high-voltage power transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505166A CN104505166A (en) | 2015-04-08 |
| CN104505166B true CN104505166B (en) | 2016-08-24 |
Family
ID=52946907
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610143721.7A Pending CN105810342A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201410753651.8A Expired - Fee Related CN104505166B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610143721.7A Pending CN105810342A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105810342A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117323Y (en) * | 2007-08-29 | 2008-09-17 | 王世祥 | Anti-theft cable |
| CN101989470A (en) * | 2009-08-06 | 2011-03-23 | 广东科能通用电气有限公司 | Anti-theft cable |
| CN201868142U (en) * | 2010-10-20 | 2011-06-15 | 申祥龙 | Burglar alarm power cable |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258525Y (en) * | 1994-09-30 | 1997-07-30 | 吕杰 | Alarm rope lock |
| CN201387735Y (en) * | 2009-04-13 | 2010-01-20 | 张志强 | Cable for inductively detecting water leakage |
| US8378822B2 (en) * | 2009-06-26 | 2013-02-19 | Melvin Price | Cable theft monitoring system |
| US20120105230A1 (en) * | 2010-10-27 | 2012-05-03 | Thomas Bockstoce | Anti-theft sensor system |
| CN103021543A (en) * | 2011-09-28 | 2013-04-03 | 茅凯 | Alarming cable |
| CN104051062A (en) * | 2014-05-06 | 2014-09-17 | 王春存 | Reinforced type dragging variable-frequency soft cable |
-
2014
- 2014-12-10 CN CN201610143721.7A patent/CN105810342A/en active Pending
- 2014-12-10 CN CN201410753651.8A patent/CN104505166B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117323Y (en) * | 2007-08-29 | 2008-09-17 | 王世祥 | Anti-theft cable |
| CN101989470A (en) * | 2009-08-06 | 2011-03-23 | 广东科能通用电气有限公司 | Anti-theft cable |
| CN201868142U (en) * | 2010-10-20 | 2011-06-15 | 申祥龙 | Burglar alarm power cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105810342A (en) | 2016-07-27 |
| CN104505166A (en) | 2015-04-08 |
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