CN106816210A - A kind of power cable - Google Patents
A kind of power cable Download PDFInfo
- Publication number
- CN106816210A CN106816210A CN201611103792.0A CN201611103792A CN106816210A CN 106816210 A CN106816210 A CN 106816210A CN 201611103792 A CN201611103792 A CN 201611103792A CN 106816210 A CN106816210 A CN 106816210A
- Authority
- CN
- China
- Prior art keywords
- layer
- wire
- power cable
- outside
- core
- 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
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Classifications
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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
- H01B9/021—Features relating to screening tape per se
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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
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
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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
- H01B7/17—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
- H01B7/1895—Internal space filling-up means
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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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
-
- 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
Abstract
The invention discloses a kind of power cable, including protective layer, screen layer and the core set gradually within outer；Screen layer is divided into 3 layers, and interior spiral layer, separation layer and outer spiral layer are respectively from the inside to the outside；Core includes two first conductors and two second conductors；The section of the first conductor is set to sector, including the first wire and the polyvinyl chloride insulation layer being wrapped in outside the first wire；The section of the second conductor is set to the second wire and the polyvinyl chloride insulation layer being wrapped in outside the second wire；First wire is formed by a branch of filament tow hinge, and every monofilament outer wall does interior insulation treatment, and the every line footpath of monofilament is with supporting frequency inversely；Second wire is set to single copper wire；Also include being arranged on theft-proof layer between protective layer and screen layer, theft-proof layer includes the tangent many root guard lines of external diameter, the present invention can realize power cable advantages of good shielding performance, can be antitheft and the effect that uses manpower and material resources sparingly.
Description
Technical field
The invention belongs to technical field of electric power, and in particular to a kind of power cable.
Background technology
With the fast development of national economy, got over as the consumption of the power cable of national economy sustainer and using scope
Come bigger.Power cable is the cable for transmitting and distributing electric energy.It is usually used in the lead-out wire in Urban Underground power network, power station
The submarine transmission line on road, the in-line power of industrial and mining enterprises and crossing river and sea.In power circuit, the proportion shared by power cable
Just gradually increase.Power cable is the cable product for being used to transmit and distribute high-power power in the basic routing line of power system
Product, including 1-500KV and any of the above voltage class, the power cable of various insulation.
The basic structure of power cable is made up of core (conductor), insulating barrier, screen layer and the part of protective layer four.Line
Core is the current-carrying part of power cable, is the major part of power cable for conveying electric energy.Insulating barrier is by core and the earth
And be electrically isolated from each other between out of phase core, it is ensured that electrical energy transportation, is indispensable group in power cable structure
Into part.Screen layer, because the electric current that electric power cable passes through can produce magnetic field than larger around electric current, in order to not influence other
Element, so plus screen layer can be this electromagnetic-field-shielded in cable.The effect of protective layer be protect power cable from
The intrusion of introduced contaminants and moisture, and prevent external force from directly damaging power cable.
Traditional cable shield effect is poor, and outside signal interference can enter core, and core also can be to external radiation；Together
When, traditional cable be only applicable to high voltage power transmission or low voltage power transmission, it is necessary to simultaneously with then, it is necessary to simultaneously arrangement high-voltage cable and
Low tension cable, causes the waste of manpower and materials；The function of power cable is more and more comprehensive, and the cost of power cable is also high
, how to carry out the antitheft also into new problem of power cable.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, now provide a kind of advantages of good shielding performance, can it is antitheft and section
The power cable of human-saving material resources.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of power cable, its innovative point exists
In：Including the protective layer, screen layer and the core that set gradually within outer；The screen layer is divided into 3 layers, is respectively from the inside to the outside
Interior spiral layer, separation layer and outer spiral layer；The interior spiral layer and outer helical layer surface have in the metal path of straight spiral type；
There is clearance for insulation between the adjacent turn of the metal path of the straight spiral type；Have between the metal path of the interior spiral layer
Insulating voids, in radial directions just just external spiral layer metal path；The core includes two first conductors and two
The conductor of root second；The section of first conductor is set to sector, including the first wire and the polychlorostyrene being wrapped in outside the first wire
Ethene insulating barrier；The section of second conductor is set to the second wire and the polyvinyl chloride insulation being wrapped in outside the second wire
Layer；First wire is formed by a branch of filament tow hinge, and the every monofilament outer wall does interior insulation treatment, the every line of monofilament
Footpath is with supporting frequency inversely；Second wire is set to single copper wire；
Also include the theft-proof layer being arranged between protective layer and screen layer, the theft-proof layer includes the tangent many root guards of external diameter
Set in line, the guard wire and be provided with cable core, and be arranged in parallel with core；The guard wire is electrically connected with dc source
And resistance；The resistance electrically connects AD conversion unit；The AD conversion unit electrically connects control room, and display is provided with control room
Device and warning device.
Further, outside first wire polyvinyl chloride insulation layer and the second wire outside polyvinyl chloride insulation layer
Consistency of thickness.
Further, the guard wire is also coated on the insulating outer layer outside cable core.
Further, the fan-shaped summit of two first conductors is located at the center of power cable, described two
The fan-shaped edge of the conductor of root first is located on same circumference.
Further, the warning device includes buzzer and alarm lamp.
Beneficial effects of the present invention are as follows：
The present invention passes through interior spiral layer, separation layer and outer spiral layer, in current-carrying, the radiation produced by any point on core,
In radial direction directive during spiral layer, otherwise captured by interior spiral layer, otherwise outwards projection, is caught by the metal path of outer spiral layer
Obtain, thus cannot external environment radiation, meanwhile, the interference signal of external environment condition also cannot be introduced into core；By being provided with
One conductor is used for high-voltage alternating circuit, and the second conductor is used for low-voltage alternating-current circuit, and to meet different current capacities, and second leads
Body is located between the first conductor and filler bar is set on the outside of the second conductor, it is ensured that the compactedness of cable；First wire, second are led
Polyvinyl chloride insulation layer is coated with outside line, under rated voltage 0.6/1kV conditions of power supply, the insulation of polyvinyl chloride insulation layer
Reliability is big, and fire resistance is good；By the theft-proof layer between protective layer and screen layer, when robber thinks theft battery core, it is necessary to destroy
Theft-proof layer, the warning device of control room can alarm, and remind staff.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the invention.
Fig. 2 is hardware graph of a relation of the invention.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages of the invention and effect easily.
As depicted in figs. 1 and 2, a kind of power cable, including protective layer 1, the and of screen layer 2 set gradually within outer
Core 3；2 points of screen layer is 3 layers, and interior spiral layer 21, separation layer 22 and outer spiral layer 23 are respectively from the inside to the outside；Interior spiral layer 21
Have in the metal path of straight spiral type with the surface of outer spiral layer 23；Have between the adjacent turn of the metal path of straight spiral type exhausted
Intermarginal gap；There are insulating voids, in radial directions just external spiral layer 23 just between the metal path of interior spiral layer 21
Metal path；Core 3 includes two first conductors 31 and two second conductors 32；The section of the first conductor 31 is set to sector,
Including the first wire and the polyvinyl chloride insulation being wrapped in outside the first wire layer；The section of the second conductor 32 is set to the second wire
With the polyvinyl chloride insulation layer being wrapped in outside the second wire；First wire is formed by a branch of filament tow hinge, and every monofilament outer wall is equal
Interior insulation treatment is done, the every line footpath of monofilament is with supporting frequency inversely；Second wire is set to single copper wire；
Also include the theft-proof layer 4 being arranged between protective layer 1 and screen layer 2, theft-proof layer 4 includes the tangent many root guards of external diameter
Set in line, guard wire and be provided with cable core, and be arranged in parallel with core；Guard wire is electrically connected with dc source and resistance；
Resistance electrically connects AD conversion unit；AD conversion unit electrically connects control room, and display and warning device are provided with control room.
The consistency of thickness of the polyvinyl chloride insulation layer outside polyvinyl chloride insulation layer and the second wire outside the first wire.
Guard wire is also coated on the insulating outer layer outside cable core.The insulating outer layer set outside guard wire is to middle electricity
Cable core is protected.
Two fan-shaped summits of the first conductor 31 are located at the center of power cable, two fans of the first conductor 31
Shape edge is located on same circumference.The arrangement of the first conductor 31 is compact, is not take up the space of cable, and stabilized structure.
Warning device includes buzzer and alarm lamp.Warning device is used to remind staff that cable has been destroyed,
Staff is reminded to be checked in time.
The present invention is by interior spiral layer 21, separation layer 22 and outer spiral layer 23, in current-carrying, 3 any point institute on core
The radiation of generation, in radial direction directive during spiral layer 21, either captured by interior spiral layer 21, or outwards projection, by outer spiral layer
23 metal path is captured, thus cannot external environment radiation, meanwhile, the interference signal of external environment condition also cannot be introduced into line
Core 3；It is used for high-voltage alternating circuit by being provided with the first conductor 31, the second conductor 32 is used for low-voltage alternating-current circuit, to meet not
With current capacity, and the second conductor 32 is located between the first conductor 31 and sets filler bar in the outside of the second conductor 32, it is ensured that
The compactedness of cable；Polyvinyl chloride insulation layer is coated with outside first wire, the second wire, is supplied in rated voltage 0.6/1kV
Under the conditions of electricity, the insulating reliability of polyvinyl chloride insulation layer is big, and fire resistance is good；By anti-between protective layer 1 and screen layer 2
Layer 4 is stolen, when robber thinks theft battery core, it is necessary to destroy theft-proof layer, the warning device of control room can alarm, staff is reminded.
First wire of the invention is formed by a branch of filament tow hinge, and every monofilament outer wall does interior insulation treatment, every list
The line footpath of silk is with supporting frequency inversely；Monofilament line footpath frequency 5000,10000,50000,100000,500000,
1000000、2000000（Hz）In the range of, by no more than 1.854,1.311,0.586,0.415,0.185,0.131,0.093
（mm）Order correspondence is chosen.According to different frequency needs, the preparation of monofilament line footpath is carried out.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (5)
1. a kind of power cable, it is characterised in that：Including the protective layer, screen layer and the core that set gradually within outer；Institute
State screen layer and be divided into 3 layers, interior spiral layer, separation layer and outer spiral layer are respectively from the inside to the outside；The interior spiral layer and outer helical
Layer surface has in the metal path of straight spiral type；Between there is insulation between the adjacent turn of the metal path of the straight spiral type
Gap；There are insulating voids, in radial directions the metal of lucky just external spiral layer between the metal path of the interior spiral layer
Path；The core includes two first conductors and two second conductors；The section of first conductor is set to sector, including
First wire and the polyvinyl chloride insulation layer being wrapped in outside the first wire；The section of second conductor be set to the second wire and
It is wrapped in the polyvinyl chloride insulation layer outside the second wire；First wire is formed by a branch of filament tow hinge, the every monofilament
Outer wall does interior insulation treatment, and the every line footpath of monofilament is with supporting frequency inversely；Second wire is set to single
Copper wire；
Also include the theft-proof layer being arranged between protective layer and screen layer, the theft-proof layer includes the tangent many root guards of external diameter
Set in line, the guard wire and be provided with cable core, and be arranged in parallel with core；The guard wire is electrically connected with dc source
And resistance；The resistance electrically connects AD conversion unit；The AD conversion unit electrically connects control room, and display is provided with control room
Device and warning device.
2. a kind of power cable according to claim 1, it is characterised in that：Polyvinyl chloride outside first wire is exhausted
The consistency of thickness of the polyvinyl chloride insulation layer outside edge layer and the second wire.
3. a kind of power cable according to claim 1, it is characterised in that：The guard wire is also coated on cable
Insulating outer layer outside core.
4. a kind of power cable according to claim 1, it is characterised in that：The fan-shaped top of two first conductors
Point is located on same circumference positioned at the center of power cable, the fan-shaped edge of two first conductors.
5. a kind of power cable according to claim 1, it is characterised in that：The warning device includes buzzer and report
Warning lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611103792.0A CN106816210A (en) | 2016-12-05 | 2016-12-05 | A kind of power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611103792.0A CN106816210A (en) | 2016-12-05 | 2016-12-05 | A kind of power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106816210A true CN106816210A (en) | 2017-06-09 |
Family
ID=59106037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611103792.0A Pending CN106816210A (en) | 2016-12-05 | 2016-12-05 | A kind of power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106816210A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201622661U (en) * | 2010-03-25 | 2010-11-03 | 刘亦萌 | Communication cable theft-proof alarming device |
| CN103811128A (en) * | 2014-03-10 | 2014-05-21 | 仲杏英 | High-current-carrying power cable |
| CN103871646A (en) * | 2014-02-24 | 2014-06-18 | 安徽华联电缆集团有限公司 | Power cable |
| CN104376913A (en) * | 2014-12-05 | 2015-02-25 | 国家电网公司 | High-voltage power cable |
| CN105280297A (en) * | 2015-11-19 | 2016-01-27 | 江苏双登电力科技有限公司 | High frequency 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 |
-
2016
- 2016-12-05 CN CN201611103792.0A patent/CN106816210A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201622661U (en) * | 2010-03-25 | 2010-11-03 | 刘亦萌 | Communication cable theft-proof alarming device |
| CN103871646A (en) * | 2014-02-24 | 2014-06-18 | 安徽华联电缆集团有限公司 | Power cable |
| CN103811128A (en) * | 2014-03-10 | 2014-05-21 | 仲杏英 | High-current-carrying power cable |
| CN104376913A (en) * | 2014-12-05 | 2015-02-25 | 国家电网公司 | High-voltage power cable |
| CN105280297A (en) * | 2015-11-19 | 2016-01-27 | 江苏双登电力科技有限公司 | High frequency 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 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170609 |