CN106448861A - Ultralow magnetic field cable - Google Patents
Ultralow magnetic field cable Download PDFInfo
- Publication number
- CN106448861A CN106448861A CN201610878303.2A CN201610878303A CN106448861A CN 106448861 A CN106448861 A CN 106448861A CN 201610878303 A CN201610878303 A CN 201610878303A CN 106448861 A CN106448861 A CN 106448861A
- Authority
- CN
- China
- Prior art keywords
- wire cores
- insulated wire
- phase
- phase insulated
- cores
- 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
-
- 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
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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
-
- 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
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
- H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor
-
- 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
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Communication Cables (AREA)
Abstract
The invention discloses an ultralow magnetic field cable. The ultralow magnetic field cable sequentially comprises a cable core, a wrapping tape and an outer sheath from inside to outside, wherein the cable core comprises seven insulation wire cores and a filler filling between the insulation cores and the wrapping tape, the seven insulation wires are respectively an N-phase insulation wire core and two A-phase insulation wire cores, two B-phase insulation wire cores and two C-phase insulation wire cores which encircle the N-phase insulation wire cores, and the two A-phase insulation wire cores, the two B-phase insulation wire cores and the two C-phase insulation wire cores are respectively and symmetrically arranged by 180 degrees and are respectively connected in parallel. By designing a symmetric and reverse structure, each phase line of three phase lines A, B and C is divided into two cores, the cables are arranged in a cabling way and are symmetrically arranged with each phase being 180 degrees, and the electromagnetic quantity of each phase in the power transmission process forms an equivalent reverse mode; and since the accumulation of the electromagnetic quantity is vector accumulation, mutual offset is formed, and the purpose of an ultralow magnetic field is achieved.
Description
Technical field
The present invention relates to a kind of cable, during more particularly to AC power transmission is crossed, produces the electricity of ultralow magnetic fields function
Power cable.
Background technology
Industry 4.0 and intelligence manufacture have become as the direction of Chinese manufacturing development.So how to realize intelligence manufacture is
We need the problem for solving at present.Intelligence manufacture should include intelligent Manufacturing Technology and intelligent manufacturing system, intelligence manufacture system
System can not only in practice constantly enrich knowledge base, with self-learning function, also collect with understand environmental information and from
The information of body, and be analyzed judging and planning the ability of itself behavior.So in modern industry manufacture system, from intelligent sense
Know, intelligent communication, the integration process of the sensing Internet of Things of the equipment (system) of Intelligent treatment and Intelligent treatment.But so one mistake
Journey is during electric drive control, and electromagnetic environment is a critically important index, and high-precision end, height are intelligent, hypersensitization
Manufacturing equipment, requires higher electromagnetic environment.But electromagnetic environment often forms contradiction with high-power equipment control.Big work(
Rate equipment needs more powerful electric power to provide power, and powerful power transmission will bring bigger electromagnetic pollution,
Particularly low pressure industrial control system.
It is to carry out bulk metal as far as possible currently used for the universal method of electromagnetic pollution for eliminating during power transmission
The protection of shielding, its Main Function is not the amount of electromagnetic radiation for reducing cable, but forms one through wire netting or metal tape
Metal-back, the electromagnetic radiation for allowing power transmission to produce is conducted in metal-back, and non-radiating is in external environment condition.Such design
The effect of certain electromagnetic shielding can be played, but electromagnetic induction voltage can be formed in metallic shield, cause electrical safety hidden danger.
In order to reduce induced voltage, metallic shield two-terminal-grounding mode is taken, but as potential difference again will be in metal screen after two-terminal-grounding
Middle formation circulation is covered, and then electromagnetic pollution is caused to environment.The design of actual this metallic shield can not carry out electric peace completely
Effect that is complete and preventing electromagnetic pollution.Of this sort technical patent has ZL2011100516399《A kind of shielding power cable》,
ZL201620324212X《The high intensity wind energy cable of electromagnetism interference》, ZL2015206729123《A kind of industry stretch-proof resists
Interference power cable》, ZL2014100758512《A kind of anti-interference power cable of double shield》.This kind of cable can not reduce electromagnetism
The generation of pollution, the mode simply by metallic shield ground connection reduces the radiation of electromagnetic pollution.
Content of the invention
Present invention aim to address the problem that prior art is present, provides one kind and produces during AC power transmission
The ultralow ultralow magnetic fields cable of amount of electromagnetic radiation.
The technical scheme for realizing the object of the invention is a kind of ultralow magnetic fields cable, be followed successively by from the inside to the outside cable core, band and
Oversheath；The cable core includes 7 insulated wire cores and the filling being filled between insulated wire cores and band；7 covered wires
Core is respectively N line insulated wire cores and two A phase insulated wire cores being looped around outside N line insulated wire cores, two B positioned at center
Phase insulated wire cores and two C phase insulated wire cores；Two A phase insulated wire cores, two B phase insulated wire cores are insulated with two C phases
Core becomes 180 ° to be symmetrical arranged respectively, and two A phase insulated wire cores, two B phase insulated wire cores and two C phase insulated wire cores
Conductor respectively in parallel.
Two A phase insulated wire cores, two B phase insulated wire cores and two C phase insulated wire cores are evenly distributed on the insulation of N line
Around core, and between N line insulated wire cores and two A phase insulated wire cores, two B phase insulated wire cores and two C phase insulated wire cores
Distance equal.
Inner liner, concentric conductor layers and copper strips lapping layer are also set gradually between the band and oversheath.
The copper strips gap of the copper strips lapping layer is wrapped.
The insulating barrier of the A phase insulated wire cores, B phase insulated wire cores and C phase insulated wire cores is respectively adopted different colours, or
It is respectively provided with insulating barrier on different colour bands, or insulation and prints A, B, C.
Technique scheme is employed, the present invention has following beneficial effect：The present invention is from Sources controlling electromagnetic radiation
Not producing, change conventional electromagnetic radiation and generate, electromagnetism is limited to ambient radiation simply by metal with shielding
Pattern, by symmetrical reverse structure design, tri- phase lines of A, B, C is divided into 2 cores per root phase line, cable cabling arrangement according to
Per 180 ° of symmetric arrays of phase.Per the electromagnetic quantities for being formed during power transmission, equivalent reverse form is formed, due to electromagnetism
The cumulative of amount is the cumulative of vector, is therefore formed and cancels out each other, has been finally reached the purpose of ultralow magnetic fields.
Description of the drawings
In order that present disclosure is easier to be clearly understood, below according to specific embodiment and accompanying drawing is combined, right
The present invention is described in further detail, wherein
Fig. 1 is a kind of structural representation of the present invention, and in figure cable is three-phase four-wire system cable.
Fig. 2 is another kind of structural representation of the present invention, and in figure cable is three-phase five-wire mode cable.
It is numbered in accompanying drawing：
Insulated wire cores 1, N line insulated wire cores 1N, A phase insulated wire cores 1A, B phase insulated wire cores 1B, C phase insulated wire cores 1C, lead
Body 11, insulating barrier 12, filling 2, band 3, oversheath 4, inner liner 5, concentric conductor layers 6, copper strips lapping layer 7.
Specific embodiment
(embodiment 1)
See Fig. 1, a kind of ultralow magnetic fields cable of the present embodiment, is the ultralow magnetic fields cable of P+N structure, suitable three-phase and four-line
Power system processed, is followed successively by cable core, band 3 and oversheath 4 from the inside to the outside；Cable core includes 7 insulated wire cores 1 and is filled in insulation
Filling 2 between core 1 and band 3；7 insulated wire cores 1 respectively positioned at N line insulated wire cores 1N at center and are looped around N
Two A phase insulated wire cores 1A, two B phase insulated wire cores 1B and two C phase insulated wire cores 1C outside line insulated wire cores 1N；Two
A phase insulated wire cores 1A, two B phase insulated wire cores 1B and two C phase insulated wire cores 1C become 180 ° to be symmetrical arranged respectively, and two A
The conductor of phase insulated wire cores 1A, two B phase insulated wire cores 1B and two C phase insulated wire cores 1C is in parallel respectively.Electrical connection be by
11 parallel connection of conductor of 2 groups of insulated wire cores 1 of homophase of 180 ° of symmetric positions accesses the corresponding connection terminal of A, B, C of power system,
Realize power symmetrical and evenly distribute transmission.Two A phase insulated wire cores 1A, two B phase insulated wire cores 1B and two C phase insulated wire cores
1C is evenly distributed on around N line insulated wire cores 1N, and N line insulated wire cores 1N are insulated with two A phase insulated wire cores 1A, two B phases
The distance between core 1B and two C phase insulated wire cores 1C are equal.The copper strips gap of copper strips lapping layer 7 is wrapped.A phase insulated wire cores
The insulating barrier of 1A, B phase insulated wire cores 1B and C phase insulated wire cores 1C is respectively adopted on different colours, or insulating barrier and is respectively provided with
A, B, C is printed on different colour bands, or insulation.
(embodiment 2)
See Fig. 2, the ultralow magnetic fields cable of the present embodiment is the ultralow magnetic fields cable of P+N+PE structure, suitable three-phase five-wire mode
Power system.On the basis of embodiment 1, inner liner 5,6 and of concentric conductor layers between band 3 and oversheath 4, is also set gradually
Copper strips lapping layer 7.
Particular embodiments described above, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further in detail
Describe in detail bright, the specific embodiment that the foregoing is only the present invention is should be understood that, the present invention is not limited to, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement that is done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (5)
1. a kind of ultralow magnetic fields cable, it is characterised in that：Cable core, band (3) and oversheath (4) are followed successively by from the inside to the outside；Described
Cable core includes 7 insulated wire cores (1) and the filling (2) being filled between insulated wire cores (1) and band (3)；7 covered wires
Core (1) is respectively exhausted positioned at N line insulated wire cores (1N) at center and two A phases being looped around outside N line insulated wire cores (1N)
Edge core (1A), two B phase insulated wire cores (1B) and two C phase insulated wire cores (1C)；Two A phase insulated wire cores (1A),
Two B phase insulated wire cores (1B) and two C phase insulated wire cores (1C) become 180 ° to be symmetrical arranged respectively, and two A phases insulate
The conductor of core (1A), two B phase insulated wire cores (1B) and two C phase insulated wire cores (1C) is in parallel respectively.
2. a kind of ultralow magnetic fields cable according to claim 1, it is characterised in that：Two A phase insulated wire cores (1A),
Two B phase insulated wire cores (1B) and two C phase insulated wire cores (1C) are evenly distributed on around N line insulated wire cores (1N), and N line is exhausted
Between edge core (1N) and two A phase insulated wire cores (1A), two B phase insulated wire cores (1B) and two C phase insulated wire cores (1C)
Distance equal.
3. a kind of ultralow magnetic fields cable according to claim 1 and 2, it is characterised in that：Band (3) and oversheath
(4) inner liner (5), concentric conductor layers (6) and copper strips lapping layer (7) are also set gradually between.
4. a kind of ultralow magnetic fields cable according to claim 3, it is characterised in that：The copper strips of copper strips lapping layer (7)
Gap is wrapped.
5. a kind of ultralow magnetic fields cable according to claim 4, it is characterised in that：A phase insulated wire cores (1A), B phase
The insulating barrier of insulated wire cores (1B) and C phase insulated wire cores (1C) is respectively adopted on different colours, or insulating barrier and is respectively provided with not
A, B, C is printed on same colour band, or insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878303.2A CN106448861A (en) | 2016-10-08 | 2016-10-08 | Ultralow magnetic field cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610878303.2A CN106448861A (en) | 2016-10-08 | 2016-10-08 | Ultralow magnetic field cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448861A true CN106448861A (en) | 2017-02-22 |
Family
ID=58173184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610878303.2A Pending CN106448861A (en) | 2016-10-08 | 2016-10-08 | Ultralow magnetic field cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448861A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876019A (en) * | 2017-04-01 | 2017-06-20 | 中冶京诚工程技术有限公司 | Power cable |
| CN109935389A (en) * | 2017-12-15 | 2019-06-25 | 湖南华菱线缆股份有限公司 | A kind of three-phase multicore parallel current-sharing construction of cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613031Y (en) * | 2003-04-18 | 2004-04-21 | 安徽华星电缆集团有限公司 | Variable frequency cable |
| CN204010791U (en) * | 2014-07-11 | 2014-12-10 | 河南通达电缆股份有限公司 | Concentric type conductor aluminium alloy cable |
| US20150107874A1 (en) * | 2012-07-05 | 2015-04-23 | Green ELMF Cables Ltd. | Electric cables having self-protective properties and immunity to magnetic interferences |
| CN105788746A (en) * | 2016-05-02 | 2016-07-20 | 北京工业大学 | Electromagnetic interference prevention mixing cable |
| CN206134308U (en) * | 2016-10-08 | 2017-04-26 | 远东电缆有限公司 | Ultralow magnetic field cable |
-
2016
- 2016-10-08 CN CN201610878303.2A patent/CN106448861A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613031Y (en) * | 2003-04-18 | 2004-04-21 | 安徽华星电缆集团有限公司 | Variable frequency cable |
| US20150107874A1 (en) * | 2012-07-05 | 2015-04-23 | Green ELMF Cables Ltd. | Electric cables having self-protective properties and immunity to magnetic interferences |
| CN204010791U (en) * | 2014-07-11 | 2014-12-10 | 河南通达电缆股份有限公司 | Concentric type conductor aluminium alloy cable |
| CN105788746A (en) * | 2016-05-02 | 2016-07-20 | 北京工业大学 | Electromagnetic interference prevention mixing cable |
| CN206134308U (en) * | 2016-10-08 | 2017-04-26 | 远东电缆有限公司 | Ultralow magnetic field cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876019A (en) * | 2017-04-01 | 2017-06-20 | 中冶京诚工程技术有限公司 | Power cable |
| CN109935389A (en) * | 2017-12-15 | 2019-06-25 | 湖南华菱线缆股份有限公司 | A kind of three-phase multicore parallel current-sharing construction of cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |