CN106847394A - Shielded cable - Google Patents
Shielded cable Download PDFInfo
- Publication number
- CN106847394A CN106847394A CN201710212586.1A CN201710212586A CN106847394A CN 106847394 A CN106847394 A CN 106847394A CN 201710212586 A CN201710212586 A CN 201710212586A CN 106847394 A CN106847394 A CN 106847394A
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- China
- Prior art keywords
- band
- shielding
- shielded
- shielded cable
- layer
- Prior art date
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Links
- 230000005291 magnetic effect Effects 0.000 claims description 54
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 39
- 238000000576 coating method Methods 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 33
- 229910052759 nickel Inorganic materials 0.000 claims description 24
- 230000035699 permeability Effects 0.000 claims description 24
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 16
- 239000007769 metal material Substances 0.000 claims description 16
- 239000011810 insulating material Substances 0.000 claims description 15
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 7
- 239000008397 galvanized steel Substances 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 63
- 238000012216 screening Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 230000005674 electromagnetic induction Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002889 diamagnetic material Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002902 ferrimagnetic material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002907 paramagnetic material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000009498 subcoating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1025—Screens specially adapted for reducing interference from external sources composed of a helicoidally wound tape-conductor
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/02—Details
- B60M1/06—Arrangements along the power lines for reducing interference in nearby communication lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1008—Features relating to screening tape per se
Abstract
The present invention relates to a kind of shielded cable, the shielded cable is located at high-voltage alternating power line, such as, the vicinity of electric railroad electric wire, so as to provide excellent capability of electromagnetic shielding.
Description
Technical field
The present invention relates to a kind of shielded cable, more particularly, to a kind of shielded cable, it is located at high-voltage alternating electric power
Line, such as the vicinity of electric railroad electric wire, so as to provide excellent capability of electromagnetic shielding.
Background technology
As railway is electrified, in order to share the operation information and control information of train, central operation system is used
System is communicated and signal transmission.
For the power system of electric railway, electric railroad electric wire is installed along railway and provides electricity with to rolling stock
Power, and also cable is installed to carry out two-way communication or signal transmission in a given direction along rail.
In the case of short distance urban electric railway, the power supply for railway power system is direct current (DC) power supply, is used
The power system of the railway of DC electric power will have electrostatic interference to the electric wire of surrounding.In order to prevent electrostatic interference, therefore, cable is used
Low-resistance metal tape is surrounded.
However, the power system for electrified metropolis railway uses exchange (AC) power supply, in this case, AC electricity
Source causes electromagnetic induction, and electrostatic interference.
Electric railway line is supplied power to by electrically driven (operated) rail facility (hereinafter referred to as electric train), but right
In the railway with operation electric train is installed to be into for the cable of parallel relation, the electric current meeting of electric railway electric wire is flowed to
Electromagnetism/electrostatic interference is caused to this cable.However, different from the use of the railway system of D/C power, using AC power supplies
The railway system produces electromagnetic induction, and electrostatic interference.Even if cable is surrounded with low-resistance metal tape, this electromagnetic interference is also
It is to be transferred to cable.
In order to reduce the electromagnetic interference occurred on the cable installed along rail, high-permeability material is wrapped in cable
On, as a result, the electromagnetic interference suffered by cable is partly shielded.
One example of conventional shielded cable is disclosed in Japanese patent application No.2004-234870, wherein, use
In the communication cable being installed on high-voltage power line electromagnetic shielded cable in high-pressure area, for example, electric-field intensity is 300V/
Km or more than 300V/km, with good capability of electromagnetic shielding, and ensures simple and easy to do in installment work.
More specifically, above-mentioned conventional shielded cable includes the electro-magnetic screen layer that is made up of two-layer band, the two-layer band by
Orientation silicon steel or electric iron are constituted, wherein, the orientation silicon steel thickness of composition electro-magnetic screen layer is between 0.29mm to 0.31mm.
Above-mentioned conventional shielded cable uses screen layer to improve ELECTROMAGNETIC OBSCURANT performance, but do not advise any structure or
Effort, wherein, induced-current helically flows, and can increase the inductance in electro-magnetic screen layer.
It is made up of two-layer band in ELECTROMAGNETIC OBSCURANT layer, wherein, two-layer band is made up of orientation silicon steel or electric iron, to improve electricity
In the case of magnetic shield performance, as shown in the curve A in Fig. 6, manufacturing cost increases, if only the screen that offer is made up of silicon steel
Cover layer, as shown in the curve B in Fig. 6, capability of electromagnetic shielding existing fringing field intensity area (about 270V/km or 270V/km with
Under) greatly fail.
The content of the invention
Technical problem
Therefore, in view of the above-mentioned above mentioned problem for producing in the prior art, it is proposed that the present invention, one object of the present invention
Be to provide a kind of shielded cable, it is located at high-voltage alternating power line, such as, and the vicinity of electric railroad electric wire, so as to provide excellent
Capability of electromagnetic shielding.
Technical scheme
According to an aspect of of the present present invention, above and other purpose can be realized by providing shielded cable, the shielding
Cable includes：The cable core of multiple band coatings；Internal shield layer, is made up of with around the multiple cable core metal material
Periphery；Exterior shield layer, is made up of with spirally around the periphery of internal shield layer metal material, and interior with described
Portion's screen layer insulation；And coating, the coating is for around the periphery of exterior shield layer.
The outside shielding layer can be coated with insulating materials.
The exterior shield layer can be the shielding band for the individual layer wound on the longitudinal direction of the shielded cable, if
The shielding band helically winds, and is taken in the absence of the distance at interval in the shielding or takes presence in the shielding
Lap.
The exterior shield layer can be the shielding band of individual layer, if the shielding band helically winds, in the shielding
Take the distance in the presence of interval.
The exterior shield layer can have on the longitudinal direction of the shielded cable with the double-deck of the distance winding at interval
At least one of which in shielding band, and grade shielding band is coated with insulating materials.
The exterior shield layer can have on the longitudinal direction of the shielded cable with the double-deck of the distance winding at interval
Shielding band, and insulating trip is arranged on described shielding between.
At least one of which in the shielding band of the exterior shield layer can be made up of any one in nickel steel or silicon steel.
The shielding band of the exterior shield layer being made up of any one in nickel steel and silicon steel can be disposed in institute
State the inside of exterior shield layer, and another shielding band of periphery around one layer of shielding band is made up of galvanized steel.
The silicon steel can be non-orientation silicon steel.
The nickel steel can have the nickel of 50% to 80% weight fraction.
The slit formed during double-deck internal shield shielded with of exterior shield layer is with spiral winding can
Covered with by exterior shield band.
The insulating coating can be by the organic material with inorganic filler by varnish coat (vanish coating)
Composition, and thickness is 4 μm or more than 4 μm.
The insulating coating can have between 30 Ω/cm2To 50 Ω/cm2Between surface insulation resistance.
According to one aspect of the present invention, above and other purpose can be realized by providing shielded cable, the screen
Covering cable includes：Core with multiple cable cores；Electrostatic screen portion, is made up of with around the outer of the core metal material
Week；Electromagnetic shielding portion, is made up of with around the electrostatic screen portion metal material, and with have described in induced-current spiral flows out
Insulate in electrostatic screen portion；And coating, the coating is for the periphery around the electromagnetic shielding portion.
The electrostatic screen portion has double-decker, and in the double-decker, internal shield band can be by high magnetic permeability
Material is constituted, and exterior shield band is made up of low magnetic permeability material, and the internal shield band and the exterior shield band into spiral shell
The ground winding of rotation shape.
The internal shield band can be made up of non-orientation silicon steel.
The internal shield band can be made up of the nickel steel of the nickel with 50% to 80% weight fraction.
The internal shield band being made up of high-permeability material in the electromagnetic shielding portion and it is made up of low magnetic permeability material
Any one of exterior shield band is coated with insulating materials.
Can be in the internal shield band being made up of high-permeability material in the electromagnetic shielding portion and by low magnetic permeability material
Insulating trip is set between the exterior shield band of composition.
The electrostatic screen portion and the electromagnetic shielding portion can be insulated from each other by insulating trip, wherein constituting the insulating trip
Material with for the internal shield band in the electromagnetic shielding portion is identical with the material of the insulating trip of exterior shield tape insulation.
When the exterior shield band being made up of low magnetic permeability material is helically wound, by the electromagnetic screen
Covering slit that the spiral winding of the internal shield band being made up of high-permeability material in portion alternately formed can be with shielded.
According to an aspect of of the present present invention, above-mentioned target and other targets can be realized by providing shielded cable, wherein, institute
Stating shielded cable includes：Multiple cable cores；Electrostatic screen portion, is made up of with around the cable core metal material；And
Electromagnetic shielding portion, the electromagnetic shielding portion is with the internal shield band being made up of high magnetic permeability metal material and by low magnetic permeability gold
Belong to the exterior shield band that material is constituted, and the electromagnetic shielding portion insulate with the electrostatic screen portion, wherein, when the inside
When shielding band and the exterior shield band are helically wound with state insulated from each other, according between 0V/km and 500V/km
Between input voltage, shielding rate be 0.05 or less than 0.05.
The internal shield band being made up of high magnetic permeability metal material in the electromagnetic shielding portion and by low magnetic permeability metal material
Expect that any one of exterior shield band for constituting can be coated with insulating materials to allow the internal shield band and the outside
Shielding with insulated from each other, in addition, or, insulating trip is set between the internal shield band and the exterior shield band to allow
The internal shield band is insulated from each other with the exterior shield band.
The electrostatic screen portion can be that the bellows being made of copper is formed.
The electrostatic screen portion and the electromagnetic shielding portion can be insulated from each other by the sheath member being made up of polyethylene.
Beneficial effect
According to the present invention, the shielded cable is located at high-voltage alternating power line, such as, and near electric railroad electric wire, so that
Excellent capability of electromagnetic shielding is provided.
Further, the shielded cable can reduce the structural change for improving capability of electromagnetic shielding, so that
Manufacturing cost is reduced.
Additionally, the shielded cable can provide the electromagnetic shielding portion of the shielding band with individual layer by insulating coating,
So as to improve workmanship efficiency and reduce its weight and volume.
Brief description of the drawings
Fig. 1 a and Fig. 1 b are the perspective view and sectional view of the shielded cable for showing first embodiment of the invention；
Fig. 2 a and Fig. 2 b are the perspective view and sectional view for showing shielded cable according to the second embodiment of the present invention；
Fig. 3 a and Fig. 3 b are the perspective view and sectional view for showing shielded cable according to the third embodiment of the invention；
Fig. 4 a and Fig. 4 b are the perspective view and sectional view for showing shielded cable according to the fourth embodiment of the invention；
Fig. 5 is the curve map of the shielding properties experiment for showing shielded cable according to a preferred embodiment of the invention；
Fig. 6 is the curve map of the shielding properties experiment of the shielded cable for showing conventional.
Specific embodiment
Hereinafter, saying on shielded cable according to a preferred embodiment of the invention is shown in detail with reference to the accompanying drawings
It is bright.Being given only for limiting the preferred embodiments of the present invention for explanation on specific structure and function, it is and of the invention
Preferred embodiment can be provided in a variety of manners, however it is not limited to embodiments described below.The present invention is entered referring to the drawings
In capable description, identical element is presented with like reference characters each other, and in order to description it is succinct, will avoid on
The explanation of the feature of the repetition of the shielded cable.
Fig. 1 a and Fig. 1 b are the perspective view and sectional view of the shielded cable for showing first embodiment of the invention.
More specifically, Fig. 1 a are the perspective views of the shielded cable for showing first embodiment of the invention, Fig. 1 b are to show
Go out the sectional view of the shielded cable of first embodiment of the invention.
The shielded cable 100 of first embodiment of the invention includes：Core 10, wherein, it is provided with multiple cables core
Line 11；Electrostatic screen portion 40, is arranged on the periphery of core 10；Electromagnetic shielding portion 60, is arranged on the periphery in electrostatic screen portion 40
On, to allow induced-current to be flowed along helical trajectory therein；And covering part 70, it is arranged on the periphery in electromagnetic shielding portion 60
On.
The core 10 of shielded cable 100 according to a first embodiment of the present invention has is used for two-way communication signal or use
In the cable core 11 of multiple band coatings of transmission signal in a particular direction.It should be appreciated that it is desirable that according to this hair
The shielded cable 100 of bright first embodiment includes the cable for transmission signal in a particular direction, and for two-way
The cable of communication.
Multiple cable cores 11 of core 10 have paired twisted-pair cable.
Film section 20 is arranged on the periphery of the core 10, forms film 21 (or thin slice) with around many of core 10
Individual cable core 11.
Film section 20 stands in multiple cable cores 11 therein for compression, so that between reducing between cable core 11
Gap, and prevent foreign substance from entering core 10.
Internal jacket portion 30 is arranged on the periphery of film section 20, and with the internal jacket structure with water-proof function
Part 31.
Internal jacket component 31 is made up of polyethylene, and polyethylene is the cross-linked polymer that a kind of polymerization by ethene is constituted
Compound.
Internal jacket portion 30 with internal jacket component 31 is thicker than film section 20, and internal jacket portion 30 has not
Transparent dead color.
It is arranged on the periphery in internal jacket portion 30 as the electrostatic screen portion 40 of internal shield layer.Electrostatic screen portion 40
It is made up of low resistive metal, more specifically, it includes the electrostatic screen component 41 being made up of copper (Cu) of bellows fashion.
Electrostatic screening effect is provided to core 10 according to electrostatic induction as the electrostatic screen portion 40 of internal shield layer, and
And in addition to low resistive metal copper, it can also be made up of aluminium (Al).In this case, aluminium can become to be coated with high score
The aluminium of sub- coating.
In addition to the form with bellows, electrostatic screen portion 40 can also have litzendraht wire (braider wire)
Form.
External jacket portion 50 is arranged on the periphery in electrostatic screen portion 40, and with external jacket component 51.Outer protective
Set portion 50 be used for using as internal shield layer electrostatic screen portion 40 and will be discussed below as exterior shield layer electromagnetism
Shielding part 60 insulate and separates.
Identical with internal jacket component 31, the external jacket component 51 in external jacket portion 50 is also made up of polyethylene.
Electromagnetic shielding portion 60 is arranged on the periphery in external jacket portion 50.
If shielded cable 100 according to embodiments of the present invention is set to flat with high-voltage power line or electric railroad electric wire
OK, therefore, in order to greatly reduce the induced-current produced by electrostatic induction or electromagnetic induction from cable core, shielded cable
100 be provided be provided at its inner portion as internal shield layer the electrostatic screen portion 40 being made up of low resistive metal and set
In its outside electromagnetic shielding portion 60 being made up of high-permeability material as exterior shield layer.
Magnetic conductivity is referred in a vacuum, when having material when being magnetized under the influence of magnetic field, produced magnetic density
The ratio between with magnetizing field.General material, i.e. the magnetic conductivity of paramagnetic material and diamagnetic material is close to 1, and magnetic permeability value is based on material
The species of material determines.In this case, ferrimagnet (such as iron) or ferrimagnetic material have sizable value, and
And these values can change with the intensity in magnetization history or magnetic field.Especially, alloy, such as nickel steel (permalloy), iron silicon
Aluminium magnetic alloy (Fe-Si-Al alloys), ferrite (including the magnetic class ceramic material of tool including ferriferous oxide), silicon steel etc.
Deng, with magnetic conductivity very high to show distinctive electrical characteristics and magnetic characteristic, therefore, its as high-permeability material by with
Make the core body of permanent magnet or radio-frequency unit.In contrast, copper and aluminium are the representative examples of low magnetic permeability metal.
It is made up of the silicon strip for generally having high magnetic permeability as the electromagnetic shielding portion 60 of exterior shield layer.Electromagnetic shielding band 60
The induced-current produced by the electromagnetic induction of the cable core 11 of core 10 is provided to reduce, further to protect cable.
Electromagnetic shielding portion 60 allows induced-current helically to flow (discussed below), and also with as electricity
The shielding band 61 of magnetic shield member, this improves the operating efficiency when shielded cable is installed.
More specifically, the shielding band 61 with given width is wound onto in external jacket portion 50, when shielded cable 100 is curved
Qu Shi, it can easily be bent by the boundary line formed on width of the shielding with 61, so as to ensure excellent work
Make efficiency.
If additionally, constituting the shielding band 61 as the electromagnetic shielding portion 60 of exterior shield layer by high magnetic permeability metal structure
Into, cause the magnetic field of noise almost to gather shielding band 61 to cable core, given birth to the magnetic field of noise is caused to cable core
Into induced-current and the induced-current that is produced by electrostatic screen band between there is destructive interference so that reduce induced-current for
The influence of cable core.This high magnetic permeability metal is nickel steel (permalloy) or silicon steel.
The silicon steel is non-orientation silicon steel, and the orientation in wherein magnetic field is eliminated, it is desirable that nickel steel have weight fraction 50% to
80% nickel.
If screen layer is made up of high-permeability material, generally, capability of electromagnetic shielding can improve, and can reduce energy
Enough determine the K (screening factor) of capability of electromagnetic shielding.
Screening factor is according to electromagnetic shielding portion 60 in the presence/absence of come the induced electromotive force to sensing cable core
Size is compared, and screening factor is determined by the following：
K (screening factor)=E (sensing the induced-current of cable core)/Eo (being applied to the input voltage of screen layer)
Or,
K (screening factor)=induced-currents of the E'(in the case where there is screen layer)/Eo'(is in the absence of screen layer
In the case of induced-current)
K (screening factor) is lower, and shielding properties is higher.
Magnetic conductivity (μ 0) has following relation with inductance L, as shown in following first equation：
(the first equation), wherein, L is electricity
Sense, Φ is total magnetic flux, and n is coil turn, and I is electric current, and B is magnetic flux density (magnetic induction intensity), and S is surface area, and H is
Magnetic field intensity.
As described above, it is made up of high-permeability material as the electromagnetic shielding portion 60 of exterior shield layer, due to electromagnetism
Shielding properties is proportional to magnetic conductivity (μ 0), and in the first equation, the magnetic conductivity (μ 0) of screen layer increases so that be proportional to magnetic conductivity
The inductance L of (μ 0) increases (the ∝ L of μ 0).
If the inductance (L) of electro-magnetic screen layer increases, correspondingly, capability of electromagnetic shielding is improved, and electro-magnetic screen layer
Screening factor reduction.
In order to improve the shielding in electromagnetic shielding portion 60 with 61 shielding properties, therefore, according to a first embodiment of the present invention
Shielded cable 100 is using a kind of method for increasing the inductance (L) in the electromagnetic shielding portion 60 as exterior shield layer.
Generally speaking, the K (screening factor) in electromagnetic shielding portion 60 is inversely proportional to the inductance (L) in electromagnetic induction portion 60, and is
The K (screening factor) in electromagnetic shielding portion 60 is reduced, the shielding band 61 for constituting electromagnetic shielding portion 60 is made up of high-permeability material.
In order to more increase the inductance (L) in electromagnetic shielding portion 60, meanwhile, by shielding with 61 induced-currents for causing along shielding electricity
Do not flowed linearly on the longitudinal direction of cable, but the track of stream curl, so as to induce coil effect (coil
effect)。
In order to allow induced-current helically to flow, the shielding band 61 in electromagnetic shielding portion 60 is constituted in outside sheath section
Helically wound on 50 periphery, and be coated with insulating materials.
That is, the shielding band 61 for constituting electromagnetic shielding portion 60 is coated with insulating materials, then helically wind,
So that the induced-current on outside screen layer helically flows, even if the shielding band 61 for constituting electromagnetic shielding portion 60 is being twined
Contacted with external jacket portion 50 during, can be increased by the inductance of coil effect so that K (screening factor) reductions.
The shielding for constituting electromagnetic shielding portion 60 is coated to 61 insulating coating by the organic material with inorganic filler
As varnish coat (vanish coating), and insulation coating layer thickness is 4 μm or more than 4 μm, preferable by experimental verification
Situation is for about 5 μm.
In the case where the shielding band 61 for constituting electromagnetic shielding portion 60 is already coated with insulating materials, the surface of insulating coating
Insulaion resistance is between 30 Ω/cm2To 50 Ω/cm2In the range of, by experimental verification, preferably from about 40 Ω/cm2。
When DC voltage is applied to insulating materials, substantially only small electric current flows through, meanwhile, voltage and electric current
Ratio represent insulaion resistance.It is on insulating materials surface or in insulating materials internal flow, insulaion resistance quilt according to electric current
It is divided into surface insulation resistance and volume insulation resistance, in this case, surface insulation resistance is measured to check insulation
The quality of coating.
In the first embodiment of the present invention shown in Fig. 1 a and Fig. 1 b, more specifically, as the screen of exterior shield layer
Portion 60 is covered to be made up of the shielding band 61 of individual layer.
As shown in the circle that Fig. 1 b amplify, shielding has the insulating coating C being formed on two surface with 61.
Even if induced-current comes in contact or overlaps or be spaced without producing during shielding 61 helical wrapping process of band
Gap (slit 62 for being formed in spiral winding) in the case of, the formation of insulating coating C still causes to be produced by electromagnetic induction
Raw induced-current is flowed up in shielding with 61 vertical.
Different from Fig. 1 a and Fig. 1 b, if it is, as exterior shield layer electromagnetic shielding portion 60 by individual layer shielding
Band 61 is constituted, and shielding band 61 helically winds, the gap without any interval, that is, with make gap 62 not by
It is exposed to the lap of outside.
As illustrated in figs. 1A and ib, if being not provided with insulating coating C, shielding band 61 helically winds narrow to be formed
Seam 62, so as to keep state of insulation.
The first embodiment of the present invention as illustrated in figs. 1A and ib, shows that shielding band 61 is helically wound with shape
Into slit 62, meanwhile, the situation for allowing insulating coating C to be formed on.In this case, if insulating coating c is not in screen
It is adequately formed on two surfaces of shield tape 61, or is difficult to be formed on insulating coating c, the formation of slit 62 is prevented from
By by bending the insulation breakdown for causing is contacted with the surface of insulating tape.
Therefore, even if insulating coating C is arranged on shielding band 61, the gap at interval is artificially formed to prevent shielding
Band 61 has lap or contact portion.
Covering part 70 is arranged on the periphery in electromagnetic shielding portion 60.The covering material 71 of covering part 70 is constituted by unleaded
PVC or Halogen resin are formed.
Fig. 2 a and Fig. 2 b are the perspective view and sectional view for showing shielded cable according to the second embodiment of the present invention.
More specifically, Fig. 2 a show the perspective view of shielded cable according to the second embodiment of the present invention, Fig. 2 b show root
According to the sectional view of the shielded cable of second embodiment of the invention, wherein, in order to description simplicity for the sake of, to Fig. 1 a and Fig. 1 b
In the part that illustrates of part will not illustrate again.
The shielding band in the electromagnetic shielding portion 60 as shown in Fig. 1 a and Fig. 1 b is used as electro-magnetic screen layer, serves as in addition for adding
The rigid rigid strength members of strong shielded cable.
In order to improve operating efficiency and allow induced-current helically to flow, the shielding band 61 in electromagnetic shielding portion 60
Helically wind.
However, if shielding band 61 helically winds, effectiveness is probably due to formation in winding every time
Shield the gap (slit) at the interval between the wound section with 61 and decline, correspondingly, electromagnetic shielding portion 60 can be by multiple
Shielding belt composition.
If electromagnetic shielding portion 60 is made up of multiple shielding belt, then when shielded cable is installed, operating efficiency is not
Having greatly is reduced, and the flowing in and out for the magnetic field by slit produced during spiral winding is shielded, so as to optimize magnetic
Field shield effect.
The electromagnetic shielding portion 60 as exterior shield layer as shown in Fig. 2 a and Fig. 2 b includes the first shielding band 61 and the
Two shielding bands 66, but can be including three layers of shielding band.
Identical with the first embodiment of the present invention, the electromagnetic shielding portion 60 as shown in Fig. 2 a and Fig. 2 b is exhausted with being formed with
First shielding band 61 of edge coating and secondary shielding band at least one of 66 or two, to increase the electricity in electromagnetic shielding portion 60
Sense, and allow the induced-current for sensing electromagnetic shielding portion 60 helically to flow.
In addition, the first shielding can not be coated over its entire surface with secondary shielding with 61 with 66,
But, the first shielding is with 61 outer surface and secondary shielding is coated to at least one of 66 inner surface so that inner surface
Contacted with each other with outer surface.
In this case, if in the first shielding with 61 outer surface and secondary shielding with equal on both 66 inner surfaces
When forming insulating coating, its thickness is less than the thickness when the coat that insulate is formed at least one surface.
First shielding with 61 spiral windings during formed slit 62 by secondary shielding with 66 maskings so that reduce it is right
The exposure of slit 62, and directly prevent flowing in and out for magnetic field.
Additionally, helically being twined according to priority on the first shielding band 61 and secondary shielding band 66 internally sheath section 30
Around.
As shown in Fig. 2 a and Fig. 2 b, if the first shielding band 61 in electromagnetic shielding portion 60 passes through each with secondary shielding band 66
From coating it is insulated from each other mutually, while helically winding independently of one another, they then act as the independent line of induction
Circle.Because these induction coils are stacked one upon the other, therefore, the inductance in electromagnetic shielding portion 60 is gone above of the invention first in fact
The shielding band of the individual layer in example is applied, so as to significantly improve the capability of electromagnetic shielding of shielding band.
That is, these shielding bands are only stacked one upon the other without there is any spiral winding, and it is insulated from each other, from
And cause the coil effect with helical trajectory and increase the inductance in electromagnetic shielding portion 60.
By the improvement of capability of electromagnetic shielding, the magnetic flux (induced-current is produced from magnetic field) in magnetic field is with maximum degree
Electromagnetic shielding portion 60 of the shielding with being formed that bilayer is wound by way of with without slit is gathered, is caused by electromagnetic induction
Induced-current flow to the electrostatic screen portion 40 being arranged on inside electromagnetic shielding portion 60 so that in the sensing generated by electromagnetic induction
There is destructive interference between electric current and the induced-current that noise is produced to cable core 11, so as to improve the electromagnetic shielding of shielding band
Performance.
First shielding band 61 and the secondary shielding in the electromagnetic shielding portion 60 of the shielded cable 100 as shown in Fig. 2 a and Fig. 2 b
Band 66 is by steel plate materialses, for example, nickel steel, silicon steel, galvanized steel etc. are constituted.
The first shielding band 61 inside electromagnetic shielding portion 60 is by any one structure in nickel steel, silicon steel, and galvanized steel
Into the secondary shielding band 66 outside electromagnetic shielding portion 60 is by any one composition in nickel steel, silicon steel, and galvanized steel.The
One shielding is made up of with 66 with 61 and secondary shielding mutually the same or different from each other material.
If the first shielding band 61 is by high-permeability material, such as, the nickel of the nickel with 50% to 80% (weight fraction)
Steel (permalloy), or non-orientation silicon steel is constituted, and is wrapped in the secondary shielding outside the first shielding band 61 with 66 by anticorrosion
Galvanized steel constitute, by experiment, demonstrating it has excellent capability of electromagnetic shielding and Corrosion Protection.
However, in addition to above-mentioned experimental result, finding the first shielding band 61 and secondary shielding band 66 when steel plate type
When being wound in bilayer with state insulated from each other, capability of electromagnetic shielding is better than when the first shielding band 61 of steel plate type and the second screen
Capability of electromagnetic shielding when shield tape 66 is wound with state on-insulated each other.
Fig. 3 a and Fig. 3 b are the perspective view and sectional view for showing shielded cable according to the third embodiment of the invention.
More specifically, Fig. 3 a are the perspective views for showing shielded cable according to the third embodiment of the invention, Fig. 3 b are to show
Go out the sectional view of shielded cable according to the third embodiment of the invention, wherein, in order to description simplicity for the sake of, in Fig. 1 a extremely
The part being had been described above in Fig. 2 b will it will not be described.
Different from the second embodiment of the present invention shown in Fig. 2 a and Fig. 2 b, the present invention as illustrated in figures 3 a and 3b
3rd embodiment use a kind of method, wherein, first shielding with 61 and secondary shielding with least one of 66 whole table
Face or contact surface do not coat insulating materials, but set insulating trip S between the first shielding band 61 and secondary shielding band 66,
So that both are insulated from each other.
It is, avoiding insulating coating, the insulating trip S being made up of non-woven fabrics or resin material is arranged on the first shielding
Between band 61 and secondary shielding band 66.In the winding process of electromagnetic shielding portion 60, insulating trip S can be put into inserted mode, or
Person invest the first shielding with 61 with secondary shielding with the side contact surface of any one in 62.
If during the winding process in electromagnetic shielding portion 60, insulating trip S is placed in the way to insert, and insulating trip S is by setting
Fat piece or resin film are constituted, so as to strengthen water resistance, and to being fastened to cause their quilts in its internal part
Winding must be without any gap.
Generally speaking, there is double-decker as the electromagnetic shielding portion 60 of exterior shield layer, and each screen layer is distinguished
It is the first shielding band 61 and secondary shielding band 66 to be wound by separate state on the longitudinal direction of shielded cable 100, while absolutely
Embolium S is inserted between the first shielding band 61 and secondary shielding band 66.
In this case, as shown in Fig. 3 a and Fig. 3 b, insulating coating can be formed in the first shielding band 61 and the
To reduce the possibility of insulation breakdown on two shielding bands 66, but if the insulating reliability presence of insulating trip S, then be just not required to
Form insulating coating.
Fig. 4 a and Fig. 4 b are the perspective view and sectional view for showing shielded cable according to the fourth embodiment of the invention.
More specifically, Fig. 4 a show the perspective view of shielded cable according to the fourth embodiment of the invention, Fig. 4 b are to show
The sectional view of shielded cable according to the fourth embodiment of the invention, wherein, in order to description simplicity for the sake of, to Fig. 1 a to scheme
The part being had been described above in 3b will it will not be described.
Different from the third embodiment of the present invention as illustrated in figures 3 a and 3b, this hair as shown in fig. 4a and fig. 4b
Bright fourth embodiment do not use external jacket portion 50 and use with identical mode in Fig. 3 a and Fig. 3 b by non-woven fabrics or
Resin material constitute insulating trip S1, so as to using as internal shield layer electrostatic screen portion 40 with as exterior shield layer electricity
Insulate in magnetic screen portion 60.
External jacket portion 50 removal cause shielded cable 100 diameter be greatly reduced, additionally, by electrostatic screen portion 40 with
Insulate in electromagnetic shielding portion 60.
In addition to applying insulating trip S1 in order to electrostatic screen portion 40 and electromagnetic shielding portion 60 are insulated, additionally, electromagnetism
First shielding of shielding part 60 is also coated with coating with 61 inner surface.
In addition, according to the fourth embodiment of the present invention as shown in fig. 4a and fig. 4b, insulating trip S2 is provided outside constituting
It is between the first shielding band 61 and secondary shielding band 66 of portion's screen layer, the first shielding band 61 is exhausted each other with secondary shielding band 66
Edge, in addition, insulating coating can be formed in the first shielding with 61 and secondary shielding with 66 to reduce the possibility of insulation breakdown.
The second to fourth embodiment of the invention as shown in Fig. 2 a to Fig. 4 b, with the double of composition electromagnetic shielding portion 60
The shielding band of layer, but only can just be obtained when shielding band for three layers and helically being wound with the state for insulating two-by-two
The increased number of effect of faradic coil must be produced, so as to greatly improve capability of electromagnetic shielding.
Fig. 5 is the curve map of the shielding properties experiment for showing shielded cable according to a preferred embodiment of the invention.More
Body ground, in empirical curve as shown in Figure 5, the electromagnetic shielding portion 60 of the shielded cable 100 as shown in Fig. 2 a and Fig. 2 b (the
One shielding band 61) by high-permeability material (nickel steel (permalloy) of the nickel such as, with 50% to 80% (weight fraction),
Or non-orientation silicon steel) constitute, the secondary shielding band 66 on the first outside of the shielding with 61 is wrapped in by etch-proof galvanized steel
It is made.In such a situa-tion, while in secondary shielding, the input voltage Eo with 66 two ends increases, in electromagnetic shielding portion 60
Internal measurement electromagnetic induction voltage E to measure K (screening factor), wherein, K (screening factor)=E (induced voltage)/Eo is (defeated
Enter voltage).According to specific experiment condition, input voltage (Eo, V/km) is in common shielded cable A, conventional high voltage screen
Cover and change on the outermost screen layer of cable B and the shielded cable C of the invention as shown in Fig. 2 a and Fig. 2 b, so as to survey
Amount K (screening factor).
In the case of the common shielded cable A in the absence of any electro-magnetic screen layer, when input voltage (Eo, V/km) is
Low and when reaching high voltage 500V/km, screening factor is greatly increased, and causes to check that the signal caused due to noise is disturbed
(wherein, K is produced in the inside of shielded cable>0.15).Induced-current along similar conventional high voltage shielded cable B screen
In the case of covering cable longitudinal flow, shielded cable B has compared shielded cable A with more excellent shielding properties, but basis
Input voltage (Eo, V/km) obtains the deviation high in shielding rate.If input voltage (Eo, V/km) is in low-voltage region (Eo<
70V/km), especially, the shielding properties of shielded cable B is significantly lower than shielded cable C of the invention, so as to check
The many noises produced on cable core.
In addition, checking the electromagnetic performance of the shielded cable B on the whole section of input voltage (Eo, V/km) compared with this
Lower (the K of shielding properties of the shielded cable C of invention<0.05).
If it is, shielded cable C of the invention be provided with electrostatic screen portion insulate electromagnetic shielding portion, its
Middle electromagnetic shielding portion has be made up of high magnetic permeability metal inside electromagnetic shielding portion first to shield band and by low magnetic conductance
The secondary shielding band outside electromagnetic shielding portion that rate metal is constituted, the first shielding band and secondary shielding band are insulated from each other
Helically wound under state so that input voltage be 0V/km to 500V/km in the range of ensure that and shielding rate 0.05
Or less than 0.05 corresponding shielding properties, and ensure that to be installed to be that there is parallel relation with high current electric railroad electric wire
For the shielding properties of the shielded cable of signal transmission.
Although with reference to specific exemplary embodiment, invention has been described, the present invention is not limited to
The embodiment, but only limited by appended claims.It should be appreciated that those skilled in the art can not depart from
In the case of scope and spirit of the present invention, embodiment is changed or modified.
Claims (25)
1. a kind of shielded cable, including：
The cable core of multiple band coatings；
Internal shield layer, is made up of with around the periphery of the multiple cable core metal material；
Exterior shield layer, be made up of metal material with spirally around the internal shield layer periphery, and with the inside
Screen layer insulate；And
Coating, to around the periphery of exterior shield layer.
2. shielded cable according to claim 1, wherein, the exterior shield layer is coated with insulating materials.
3. shielded cable according to claim 2, wherein, the exterior shield layer is in the vertical of the shielded cable
The shielding band of the individual layer for winding upwards, and if the shielding band helically winds, then taken in the shielding and do not deposited
Take and there is lap in the distance at interval or in the shielding.
4. shielded cable according to claim 1, wherein, the exterior shield layer is the shielding band of individual layer, if described
Shielding band helically winds, then take the distance in the presence of interval in the shielding.
5. shielded cable according to claim 1, wherein, the exterior shield layer has in the longitudinal direction of the shielded cable
On be spaced distance wind double-deck shielding band, and it is described shielding band at least one of which be coated with insulating materials.
6. shielded cable according to claim 1, wherein, the exterior shield layer has in the longitudinal direction of the shielded cable
On be spaced distance wind double-deck shielding band, and it is described shielding band between be provided with insulating trip.
7. the shielded cable according to claim 5 or 6, wherein, in the shielding band of the exterior shield layer at least
One layer is made up of any one in nickel steel and silicon steel.
8. shielded cable according to claim 7, wherein, the external screen being made up of any one in nickel steel and silicon steel
The shielding band for covering layer is arranged on the inside of the exterior shield layer, and around one layer of another screen of the periphery of shielding band
Shield tape is then made up of galvanized steel.
9. shielded cable according to claim 7, wherein, the silicon steel is non-orientation silicon steel.
10. shielded cable according to claim 7, wherein, the nickel steel contains the nickel that weight fraction is 50% to 80%.
The 11. shielding band according to claim 3 or 4, wherein, in double-deck shielding band of exterior shield layer
Internal shield band spiral winding during formed slit covered by the exterior shield band.
12. shielded cable according to claim 2 or 5, wherein, the insulating coating is by with the organic of inorganic filler
Material is made up of varnish coat, and thickness is 4 μm or more than 4 μm.
13. shielded cables according to claim 12, wherein, the insulating coating has between 30 Ω/cm2With 50 Ω/
cm2Between surface insulation resistance.
A kind of 14. shielded cables, including：
Core, the core has multiple cable cores；
Electrostatic screen portion, is made up of with around the periphery of the core metal material；
Electromagnetic shielding portion, is made up of with around the electrostatic screen portion metal material, and with the institute for thering is induced-current spiral to flow out
State the insulation of electrostatic screen portion；And
Coating, the coating is to around the periphery in the electromagnetic shielding portion.
15. shielded cables according to claim 14, wherein, the electrostatic screen portion has double-decker, described double
In Rotating fields, internal shield band is made up of high-permeability material, and exterior shield band is made up of low magnetic permeability material, and described interior
Portion shields band and the exterior shield band helically winds.
16. shielded cables according to claim 14, wherein, the internal shield band is made up of non-orientation silicon steel.
17. shielded cables according to claim 14, wherein, the internal shield band is made up of nickel steel, and the nickel steel contains
There is the nickel of 50% to 80% weight fraction.
18. shielded cables according to claim 15, wherein, in the electromagnetic shielding portion, by the high magnetic permeability material
Expect the coating of any one of the internal shield band that constitutes and the exterior shield band that is made up of the low magnetic permeability material
There is insulating materials.
19. shielded cables according to claim 15, wherein, in the electromagnetic shielding portion, by the high magnetic permeability material
Expect to be provided with insulation between the internal shield band for constituting and the exterior shield band being made up of the low magnetic permeability material
Piece.
20. shielded cables according to claim 19, wherein, the electrostatic screen portion is with the electromagnetic shielding portion by exhausted
Embolium is insulated from each other, wherein, constitute the material of the insulating trip and be used to the internal shield band in the electromagnetic shielding portion
The material of the insulating trip insulated from each other with the exterior shield band is identical.
21. shielding bands according to claim 15, wherein, when the exterior shield being made up of the low magnetic permeability material
When band helically winds, the spiral shell of the internal shield band being made up of the high-permeability material in the electromagnetic shielding portion
The alternately formed slit of rotation winding is shielded.
A kind of 22. shielded cables, including：
Multiple cable cores；
Electrostatic screen portion, is made up of with around the cable core metal material；And
Electromagnetic shielding portion, the electromagnetic shielding portion is with the internal shield band being made up of high magnetic permeability metal material and by low magnetic conductance
The exterior shield band that rate metal material is constituted, and the electromagnetic shielding portion insulate with the electrostatic screen portion, wherein, when described
When internal shield band and the exterior shield band are helically wound with state insulated from each other, according between 0V/km extremely
Input voltage between 500V/km, shielding rate is 0.05 or less than 0.05.
23. shielded cables according to claim 22, wherein, in the electromagnetic shielding portion, by high magnetic permeability gold
Appointing in the internal shield band that category material is constituted and the exterior shield band being made up of the low magnetic permeability metal material
One is coated with insulating materials to allow the internal shield band insulated from each other with the exterior shield band, or, described interior
Portion shielding band and the exterior shield band between insulating trip is set, with allow the internal shield band and the exterior shield band that
This insulation.
24. shielded cables according to claim 22, wherein, the bellows that the electrostatic screen portion is made of copper is formed.
25. shielded cables according to claim 22, wherein, the electrostatic screen portion and the electromagnetic shielding portion by by
The sheath member that polyethylene is constituted is insulated from each other.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120127925A KR20140060941A (en) | 2012-11-13 | 2012-11-13 | Shield cable |
| KR10-2012-0127925 | 2012-11-13 | ||
| CN201380059377.8A CN104798145A (en) | 2012-11-13 | 2013-08-21 | Shield cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380059377.8A Division CN104798145A (en) | 2012-11-13 | 2013-08-21 | Shield cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106847394A true CN106847394A (en) | 2017-06-13 |
Family
ID=50731375
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212586.1A Pending CN106847394A (en) | 2012-11-13 | 2013-08-21 | Shielded cable |
| CN201380059377.8A Pending CN104798145A (en) | 2012-11-13 | 2013-08-21 | Shield cable |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380059377.8A Pending CN104798145A (en) | 2012-11-13 | 2013-08-21 | Shield cable |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR20140060941A (en) |
| CN (2) | CN106847394A (en) |
| AU (1) | AU2013345687B2 (en) |
| PH (1) | PH12015500993B1 (en) |
| SG (1) | SG11201503641PA (en) |
| WO (1) | WO2014077492A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735396A (en) * | 2018-06-05 | 2018-11-02 | 浙江正泰电缆有限公司 | A kind of biobelt material technique for coiling |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102380328B1 (en) * | 2015-06-30 | 2022-03-30 | 엘에스전선 주식회사 | Superconducting cable |
| CN105047277B (en) * | 2015-08-20 | 2017-10-27 | 国网山东省电力公司临沂供电公司 | Water resistant tree low-voltage insulating cable |
| CA3031668C (en) | 2016-07-26 | 2023-06-13 | General Cable Technologies Corporation | Cable having shielding tape with conductive shielding segments |
| CN106847418A (en) * | 2016-12-28 | 2017-06-13 | 江苏戴普科技有限公司 | The track traffic preparation technology of fire-retardant four pairs of Shielded Twisted Pairs |
| CN106828199B (en) * | 2017-03-30 | 2023-03-17 | 北京全路通信信号研究设计院集团有限公司 | Cable anti-interference system for electrified railway section |
| KR102499648B1 (en) * | 2017-05-31 | 2023-02-14 | 엘에스전선 주식회사 | High voltage DC power cable joint system |
| MX2019007035A (en) | 2018-06-14 | 2019-12-16 | Gen Cable Technologies Corp | Cable having shielding tape with conductive shielding segments. |
| KR20230032044A (en) | 2021-08-30 | 2023-03-07 | 엘에스전선 주식회사 | Shield cable for electric railway |
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| JPH06203652A (en) * | 1993-01-07 | 1994-07-22 | Murata Mfg Co Ltd | Shielded cable |
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- 2013-08-21 WO PCT/KR2013/007501 patent/WO2014077492A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2013345687A1 (en) | 2015-05-28 |
| PH12015500993A1 (en) | 2015-07-27 |
| SG11201503641PA (en) | 2015-06-29 |
| CN104798145A (en) | 2015-07-22 |
| AU2013345687B2 (en) | 2016-08-25 |
| WO2014077492A1 (en) | 2014-05-22 |
| PH12015500993B1 (en) | 2015-07-27 |
| KR20140060941A (en) | 2014-05-21 |
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