CN104464933B - High voltage power transmission power cable - Google Patents
High voltage power transmission power cable Download PDFInfo
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- CN104464933B CN104464933B CN201410755551.9A CN201410755551A CN104464933B CN 104464933 B CN104464933 B CN 104464933B CN 201410755551 A CN201410755551 A CN 201410755551A CN 104464933 B CN104464933 B CN 104464933B
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- privates
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 23
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 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
- 230000000246 remedial effect Effects 0.000 description 1
Classifications
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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
-
- 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
- H01B9/00—Power cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- 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
Abstract
The invention discloses a kind of high voltage power transmission power cable, including the first core, the second core, the first insulating barrier, the second insulating barrier, screen layer, protective layer；The first described core cross section is annular, and the second described core cross section is rounded；The second described core is arranged at First Line core inner；First insulating barrier is set between the first core and the second core；The outside of the second core sets gradually the second insulating barrier, screen layer, protective layer from inside to outside；Also include the first wire, the second wire, privates；Described the first wire, the second wire, privates external diameter 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.
, once there is power cable breaking problem, are difficult to look in existing single-core power cables all only one of which cores
Look for, owing to open circuit trouble-shoots is cumbersome, large area user therefore can be caused to have a power failure.
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 single-core power cables is all
, once there is power cable breaking problem in only one of which core, is difficult to search, owing to open circuit trouble-shoots compares
Trouble, therefore can cause large area user to have a power failure.
In order to realize solving above technical problem, the technical solution adopted in the present invention is: high voltage power transmission electric power
Cable, it is characterised in that include the first core, the second core, the first insulating barrier, the second insulating barrier, shielding
Layer, protective layer；The first described core cross section is annular, and the second described core cross section is rounded；Described
The second core be arranged at First Line core inner；First insulating barrier is set between the first core and the second core；The
The outside of two cores sets gradually the second insulating barrier, screen layer, protective layer from inside to outside；
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；
Described the first wire, the second wire, 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, it is effectively protected
The safety of transmission line of electricity；Meanwhile, because robber wants to steal if core, it is necessary to first destroy protective layer, so this
The power cable of invention also effectively prevent robber and steals power cable core, and not yet forming closed-loop path
Time do not consume electric energy.Meanwhile, the core of the single-core power cables of the present invention is hollow, sets again in hollow cavity
Put standby core, power cable breaking problem has once occurred, standby core can have been used, thus will not go out
Existing large-area power-cuts problem.
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.
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 the first core, the second core, the first insulation
Layer, the second insulating barrier, screen layer, protective layer；The first described core cross section is annular, described second
Core cross section is rounded；The second described core is arranged at First Line core inner；First core and the second core it
Between the first insulating barrier is set；The outside of the second core sets gradually the second insulating barrier, screen layer, guarantor from inside to outside
Sheath；
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；
Described the first wire, the second wire, 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).
Claims (10)
1. high voltage power transmission power cable, it is characterised in that include the first core, the second core, the first insulation
Layer, the second insulating barrier, screen layer, protective layer；The first described core cross section is annular, described second
Core cross section is rounded；The second described core is arranged at First Line core inner；First core and the second core it
Between the first insulating barrier is set；The outside of the second core sets gradually the second insulating barrier, screen layer, guarantor from inside to outside
Sheath；
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；
Described the first wire, the second wire, 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 (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180586.3A CN105632632A (en) | 2014-12-10 | 2014-12-10 | Power cable for high-voltage power transmission |
| CN201610178846.3A CN105632631A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610179854.XA CN105609190A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201610178770.4A CN105845250A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201410755551.9A CN104464933B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410755551.9A CN104464933B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180586.3A Division CN105632632A (en) | 2014-12-10 | 2014-12-10 | Power cable for high-voltage power transmission |
| CN201610179854.XA Division CN105609190A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201610178846.3A Division CN105632631A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610178770.4A Division CN105845250A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104464933A CN104464933A (en) | 2015-03-25 |
| CN104464933B true CN104464933B (en) | 2016-09-14 |
Family
ID=52910858
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610178770.4A Pending CN105845250A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201610178846.3A Pending CN105632631A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610180586.3A Pending CN105632632A (en) | 2014-12-10 | 2014-12-10 | Power cable for high-voltage power transmission |
| CN201610179854.XA Pending CN105609190A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201410755551.9A Active CN104464933B (en) | 2014-12-10 | 2014-12-10 | High voltage power transmission power cable |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610178770.4A Pending CN105845250A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
| CN201610178846.3A Pending CN105632631A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission power cable |
| CN201610180586.3A Pending CN105632632A (en) | 2014-12-10 | 2014-12-10 | Power cable for high-voltage power transmission |
| CN201610179854.XA Pending CN105609190A (en) | 2014-12-10 | 2014-12-10 | High-voltage power transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN105845250A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766671B (en) * | 2015-04-30 | 2017-03-08 | 江苏省电力公司盐城供电公司 | Power system anti-theft high-voltage is transmitted electricity power cable |
| CN105609188A (en) * | 2015-12-30 | 2016-05-25 | 广安金侑达电业科技有限公司 | Grounded special waterproof anti-theft cable |
| CN105590688A (en) * | 2015-12-30 | 2016-05-18 | 广安金侑达电业科技有限公司 | Cable with constant voltage power supply antitheft device |
| CN108389344B (en) * | 2018-04-24 | 2019-09-17 | 贵州首为电线电缆有限公司 | Anti-theft type wire and cable |
| CN108765816A (en) * | 2018-05-08 | 2018-11-06 | 国网山东省电力公司青岛供电公司 | The anti-external force breaking plant of cable based on mobile communication |
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| CN2277554Y (en) * | 1996-12-30 | 1998-04-01 | 上海摩恩电气有限公司 | Five-core power cable |
| JP4989693B2 (en) * | 2009-08-03 | 2012-08-01 | 日立電線株式会社 | cable |
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| EP2633505A2 (en) * | 2010-10-27 | 2013-09-04 | Erico International Corporation | Anti-theft sensor system |
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- 2014-12-10 CN CN201610178770.4A patent/CN105845250A/en active Pending
- 2014-12-10 CN CN201610178846.3A patent/CN105632631A/en active Pending
- 2014-12-10 CN CN201610180586.3A patent/CN105632632A/en active Pending
- 2014-12-10 CN CN201610179854.XA patent/CN105609190A/en active Pending
- 2014-12-10 CN CN201410755551.9A patent/CN104464933B/en active Active
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| CN201117323Y (en) * | 2007-08-29 | 2008-09-17 | 王世祥 | Anti-theft cable |
| CN101221834A (en) * | 2007-12-14 | 2008-07-16 | 吴江市盛信电缆有限责任公司 | Transverse connecting cable of railway slip road |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105845250A (en) | 2016-08-10 |
| CN105609190A (en) | 2016-05-25 |
| CN104464933A (en) | 2015-03-25 |
| CN105632631A (en) | 2016-06-01 |
| CN105632632A (en) | 2016-06-01 |
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