CN107068257A - Photoelectricity composite water-proof and water repellent electric cable - Google Patents
Photoelectricity composite water-proof and water repellent electric cable Download PDFInfo
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- CN107068257A CN107068257A CN201710387837.XA CN201710387837A CN107068257A CN 107068257 A CN107068257 A CN 107068257A CN 201710387837 A CN201710387837 A CN 201710387837A CN 107068257 A CN107068257 A CN 107068257A
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- electric cable
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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
- H01B9/005—Power cables including optical transmission elements
-
- 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
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
- 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
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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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
-
- 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
-
- 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
- H01B9/022—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of longitudinal lapped tape-conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
Abstract
The present invention relates to a kind of photoelectricity composite water-proof and water repellent electric cable, with stranding cable core and the clad being coated on outside stranding cable core；Space between the stranding cable core and clad forms packed layer；It is characterized in that：The stranding cable core includes conductor, conductor shield, insulating barrier, insulation screen and metal screen layer successively from the inside to the outside；The clad includes comprehensive waterproof layer, double-tape armor layer and oversheath successively from the inside to the outside；The stranding cable core stranded is formed around core number for the optic fibre core of 24 cores.The position of the optic fibre core of the present invention is not to damage the gap that optical fiber is placed on stranding cable core as principle so that more preferably, with excellent bending property, product structure is simple, good water-proof effect, easy to process for the flexibility of product.
Description
Technical field
The present invention relates to technical field of electric wires and cables, more particularly to a kind of photoelectricity composite water-proof and water repellent electric cable.
Background technology
Waterproof requirement to power cable is also just to grow up in recent years, and the requirement to waterproof in the past is limited primarily to sea
In the application of bottom cable, extra-high-tension cable and communication cable.With to insulation water suction and the research and the intensification of understanding of water tree, people
Have become increasingly aware of importance of the water resistance to middle-high voltage power cable.On the higher or throughout the year rainy ground of level of ground water
Area, increasing user proposes the requirement of radial direction waterproof to cable, prevents moisture from being penetrated into out of sheath.For example, on the water
During photovoltaic plant is built, cable is inevitably put into rivers in project, at nearly 30 years in use, requiring that cable can be prevented
Water is simultaneously used safely.Power cable waterproof is not required nothing more than in project, and fiber optic cables also want waterproof.For this complex environment
In, to the composite request of cable, in the urgent need to being innovated to Product Process structure.
Traditional water-proof cable uses the comprehensive job contract skill of plastic-aluminum combined layer, and this plastic-aluminum combined width of technological requirement is difficult control
System, is producing same cable, it is not wide easily to produce, and is exactly narrow；It is not flexible and the hardness of cable is big.
The content of the invention
The purpose of the present invention is that the defect for overcoming prior art to exist is good there is provided a kind of softness, with excellent curved
Qu Xingneng, product structure are simple, the photoelectricity composite water-proof and water repellent electric cable of good water-proof effect.
Realizing the technical scheme of the object of the invention is：A kind of photoelectricity composite water-proof and water repellent electric cable, with stranding cable core with
And it is coated on the clad outside stranding cable core；Space between the stranding cable core and clad forms packed layer；The stranding
Cable core includes conductor, conductor shield, insulating barrier, insulation screen and metal screen layer successively from the inside to the outside；The clad
Include comprehensive waterproof layer, double-tape armor layer and oversheath successively from the inside to the outside；The stranding cable core is 24 around a core number
The optic fibre core of core is stranded to be formed.
Comprehensive waterproof layer described in above-mentioned technical proposal includes the band of close adhesion, the first interior shield waterproof successively from the inside to the outside
Extruded in shield waterproof layer in layer, plastic-aluminum metal compound belt and second, and comprehensive waterproof layer provided with inner liner；The plastic-aluminum metal is answered
Crossed belt forms to be wrapped, and passes through 360 degree of heat treatments, it is ensured that put up part all inter-adhesive.
There is the first waterstop and the second waterstop respectively inside and outside double-tape armor layer described in above-mentioned technical proposal.
Conductor described in above-mentioned technical proposal is to press circular single line of the coefficient not less than 0.9 stranded to press copper conductor.
The semi-conductive layer of conductor shield described in above-mentioned technical proposal and insulation screen to be extruded by cross-linking type material.
Insulating barrier described in above-mentioned technical proposal is 10.5mm to extrude close insulation thickness nominal value, and insulating barrier is any
Thin dot thickness at one is not less than the 9.35mm of nominal value, and the degree of eccentricity of insulation is not more than 15% cross-linking polyethylene materials.
Metal screen layer described in above-mentioned technical proposal is made up of one layer of overlapping wrapped soft copper band, and soft copper band nominal thickness
δ is more than or equal to 0.1mm, δminNot less than the 90% of nominal value, the putting up rate between copper strips is the 5%~15% of copper strips width.
Shield waterproof layer, the second interior shield waterproof layer and oversheath are polyethylene sheath material in first described in above-mentioned technical proposal
Extrude shaping.
Described in above-mentioned technical proposal double-tape armor layer by double-deck galvanized steel strip gap put up it is wrapped formed, its clearance rate be 45
~50%.
After adopting the above technical scheme, the present invention has following positive effect：
（1）The stranding cable core of the present invention around core number for 24 cores optic fibre core it is stranded form, the position of optic fibre core with
The center that optical fiber is placed on stranding cable core for principle, a kind of new wrapped plastic-aluminum combined layer of design, the thickness of plastic-aluminum combined layer are not damaged
Degree control puts up rate control 5%~40%, passes through 360 degree of heat treatments, it is ensured that put up part whole between 0.05~0.30mm
It is inter-adhesive so that more preferably, with excellent bending property, product structure is simple, good water-proof effect, processing for the flexibility of product
It is convenient.
（2）The present invention's does not need special aluminum-extruding machine or winding machine, and manufacturing equipment is simple, it is not necessary to special equipment.
（3）The present invention's has plastic-aluminum metal compound belt, three layers of waterproof construction of interior shield waterproof and oversheath, product cost
Low, product safety is reliable.
Brief description of the drawings
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail, wherein
Fig. 1 is structural representation of the invention；
In accompanying drawing marked as：1. conductor, 2. conductor shieldings, 3. insulation, 4. insulation shieldings, 5. metallic shields, 6. fillings, 7. bags
Band, 8. optical fiber, shield waterproofs in 9., 10. plastic-aluminum metal compound belts, shield waterproofs in 11., 12. waterstops, 13. double-tape armors layer,
14. waterstop, 15. outer shield waterproofs.
Embodiment
（Embodiment 1）
See Fig. 1, the present invention is with stranding cable core and the clad being coated on outside stranding cable core；Between stranding cable core and clad
Space formed packed layer 6；Stranding cable core includes conductor 1, conductor shield 2, insulating barrier 3, insulation shielding successively from the inside to the outside
Layer 4 and metal screen layer 5；Clad includes comprehensive waterproof layer, double-tape armor layer 13 and oversheath 15 successively from the inside to the outside；Into
Cable cable core stranded is formed around core number for the optic fibre core 8 of 24 cores.
Comprehensive waterproof layer from the inside to the outside answer successively by interior 9 layers of the waterproof of shield of the band 7, first including close adhesion, plastic-aluminum metal
Extruded in 11 layers of waterproof of shield in crossed belt 10 and second, and comprehensive waterproof layer provided with inner liner；Plastic-aluminum metal compound belt 10 is wrapped
Form.
There is the first waterstop 12 and the second waterstop 14 respectively inside and outside double-tape armor layer 13.
To press, circular single line of the coefficient not less than 0.9 is stranded to press copper conductor 1 to conductor 1.
The semi-conductive layer of conductor shield 2 and insulation screen 4 to be extruded by cross-linking type material.
Insulating barrier 3 is 10.5mm to extrude close insulation thickness nominal value, and the thin dot thickness at any one place of insulating barrier 3
Not less than the 9.35mm of nominal value, the degree of eccentricity of insulation is not more than 15% cross-linking polyethylene materials.
Metal screen layer 5 is made up of one layer of overlapping wrapped soft copper band, and soft copper band nominal thickness δ is more than or equal to 0.1mm,
δminNot less than the 90% of nominal value, the putting up rate between copper strips is the 5%~15% of copper strips width.
9 layers of waterproof of shield, the second interior 11 layers of waterproof of shield and oversheath 15 are that polyethylene sheath material extrudes shaping in first.
Double-tape armor layer 13 by double-deck galvanized steel strip gap put up it is wrapped formed, its clearance rate be 45~50%.
（Embodiment 2 is with 3 × 95mm of 26/35kV2Exemplified by specification）
1 conductor 1
Copper conductor 1 meets GB/T 3956-2008 regulation, and single line is stranded presses copper conductor 1 using circular for conductor 1, presses coefficient
Not less than 0.9.Any surface finish of conductor 1, burr, sharp edge without greasy dirt, not damaged shielding and insulation, no raised or fracture list
Line.
2 conductor shields 2
Conductor shield 2 is the semi-conductive layer extruded, and the semiconductive material extruded is cross-linking type material.Semi-conductive layer is equably coated
On conductor 1, surface is smooth, without obvious twisted wire burr, no wedge angle, particle, burns and abrasive vestige.
3 insulating barriers 3
Insulating barrier 3 uses cross-linking polyethylene materials, extrudes close, surfacing, and insulation thickness nominal value is 10.5mm, and insulation is appointed
The thickness of thinnest point at one of anticipating is not less than the 90%-0.1mm of nominal value.The degree of eccentricity of insulation is not more than 15%.
4 insulation screens 4
Insulation screen 4 is the semi-conductive layer extruded, and the semiconductive material extruded is cross-linking type material.Semi-conductive layer is smooth, no point
Angle, particle, burn and abrasive vestige.
5 metal screen layers 5
Metal screen layer 5 is made up of one layer of overlapping wrapped soft copper band, and copper strips nominal thickness is >=0.1mm, and the minimum of copper strips is thick
Degree should be not less than the 90% of nominal value.Putting up rate between copper strips is the 15% of copper strips width（Nominal value）, the minimum rate of putting up should not be small
In 5%.Soft copper band should meet GB/T 11091-2005 regulation.
Shield waterproof layer in 6
Inner sheath extrudes shaping using polyethylene sheath material, and polyethylene performance should meet GB/T 15065-2009 regulation.Sheath
Thickness should meet GB/T 12706.3-2008 regulation, and its thinnest part thickness is not less than nominal value 80%-0.2mm.
7 comprehensive waterproofs layer
Comprehensive waterproof layer is set in metal screen layer 5 and armouring interlayer, inner liner should be extruded in comprehensive waterproof layer.
Comprehensive waterproof layer by aluminium-plastic tape it is wrapped+polyethylene extrudes and constitutes.Polyethylene is extruded should smooth, rounding, no Jiao
Expect, the defect such as pimple, stomata, sand holes and breach.
Aluminium-plastic tape forms to be wrapped, and thickness and performance should meet YD/T 723.2-2007 regulation.
Comprehensive waterproof layer answers close adhesion.
8 armors
Armor is using double-deck galvanized steel strip, and wrapped, wrapped flat smooth is put up in gap, and clearance rate is 45-50%.Steel band should be accorded with
Close YB/T 024-2008 regulation.
Respectively add one layer of waterstop inside and outside steel-tape armouring layer.
9 oversheaths 15
Oversheath 15 extrudes shaping using polyethylene sheath material, and polyethylene performance should meet GB/T 15065-2009 regulation.Shield
Set thickness should meet GB/T 12706.3-2008 regulation, and its thinnest part thickness is not less than nominal value 80%-0.2mm.
10 optic fibre cores 8
The core number of optic fibre core 8 is 24 cores, and the position of optical fiber is placed on the center of cable core, not damage optical fiber as principle.
In the production process of the present invention：The thickness control of plastic-aluminum combined layer puts up rate control between 0.05~0.30mm
5%~40%, pass through 360 degree of heat treatments, it is ensured that put up part all inter-adhesive.So that the good bandability of cable, processing side
Just, and cable rounding property might as well.
The technical performance index of the present invention：
1st, general characteristic index：Meet the requirement of GB/T 12706-2008 standards.
2nd, the indirect performance assessment criteria of radial direction waterproof test：
Air test：50~100Pa dry airs or nitrogen post-equalization 6 hours are filled with, cable either end air pressure does not decline.
3rd, the external coating waterproof test of finished cable comprehensive waterproof layer is by the 19.22nd article in GB/T 12706.3-2008
Water permeabillity test as defined in money.
4th, the PE sheaths of comprehensive waterproof layer should not at 20 DEG C with any portion of mean peel strength of plastic-aluminum combined interband
Less than 0.5N/mm（The requirement that test method is annex F in GB/T 12706.3-2008）.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (9)
1. a kind of photoelectricity composite water-proof and water repellent electric cable, with stranding cable core and the clad being coated on outside stranding cable core；Institute
The space stated between stranding cable core and clad forms packed layer；It is characterized in that：The stranding cable core is wrapped successively from the inside to the outside
Include conductor, conductor shield, insulating barrier, insulation screen and metal screen layer；The clad includes comprehensive successively from the inside to the outside
Close waterproof layer, double-tape armor layer and oversheath；The stranding cable core is around core number for the optic fibre core of 24 cores is stranded
Into.
2. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The comprehensive waterproof layer is by interior
Shield waterproof layer in the band, the first interior shield waterproof layer, plastic-aluminum metal compound belt and second for include successively outside close adhesion, and it is comprehensive
Close and extruded in waterproof layer provided with inner liner；The plastic-aluminum metal compound belt forms to be wrapped.
3. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The double-tape armor layer
Inside and outside respectively have the first waterstop and the second waterstop.
4. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The conductor is to press coefficient
Circular single line not less than 0.9 is stranded to press copper conductor.
5. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The conductor shield and absolutely
Semi-conductive layer of the edge screen layer to be extruded by cross-linking type material.
6. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The insulating barrier is tight to extrude
Close insulation thickness nominal value be 10.5mm, and any one place of insulating barrier thin dot thickness be not less than nominal value 9.35mm, absolutely
The degree of eccentricity of edge is not more than 15% cross-linking polyethylene materials.
7. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：The metal screen layer is by one
The overlapping wrapped soft copper band composition of layer, and soft copper band nominal thickness δ is more than or equal to 0.1mm, δminNot less than the 90% of nominal value, copper
The rate of putting up of interband is the 5%~15% of copper strips width.
8. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：Shield waterproof in described first
Layer, the second interior shield waterproof layer and oversheath are that polyethylene sheath material extrudes shaping.
9. photoelectricity composite water-proof according to claim 1 and water repellent electric cable, it is characterised in that：Double-tape armor layer by
Double-deck galvanized steel strip gap puts up wrapped formation, and its clearance rate is 45~50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387837.XA CN107068257A (en) | 2017-05-27 | 2017-05-27 | Photoelectricity composite water-proof and water repellent electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387837.XA CN107068257A (en) | 2017-05-27 | 2017-05-27 | Photoelectricity composite water-proof and water repellent electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068257A true CN107068257A (en) | 2017-08-18 |
Family
ID=59610011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710387837.XA Withdrawn CN107068257A (en) | 2017-05-27 | 2017-05-27 | Photoelectricity composite water-proof and water repellent electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741877A (en) * | 2019-02-28 | 2019-05-10 | 远东电缆有限公司 | Wisdom energy wind-powered electricity generation, which is used up to reply by cable, closes shielded flexible cable and its production technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562064A (en) * | 2009-05-22 | 2009-10-21 | 江苏亨通电力电缆有限公司 | Rated voltage of 35kv or below shallow sea wind farm photoelectrical transmission composite cable |
| US20100116541A1 (en) * | 2008-11-10 | 2010-05-13 | Hitachi Cable, Ltd. | Cable |
| CN203706729U (en) * | 2014-02-19 | 2014-07-09 | 扬州市金阳光电缆有限公司 | Water blocking water-tree-resistant medium-voltage power cable |
| CN205028701U (en) * | 2015-10-13 | 2016-02-10 | 安徽新亚特电缆集团有限公司 | Medium voltage power cable entirely blocks water |
| CN205582610U (en) * | 2016-04-15 | 2016-09-14 | 扬州曙光电缆股份有限公司 | Waterproof type middling pressure crosslinked cable |
| CN206877712U (en) * | 2017-05-27 | 2018-01-12 | 江苏双登电力科技有限公司 | Photoelectricity composite water-proof and water repellent electric cable |
-
2017
- 2017-05-27 CN CN201710387837.XA patent/CN107068257A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100116541A1 (en) * | 2008-11-10 | 2010-05-13 | Hitachi Cable, Ltd. | Cable |
| CN101562064A (en) * | 2009-05-22 | 2009-10-21 | 江苏亨通电力电缆有限公司 | Rated voltage of 35kv or below shallow sea wind farm photoelectrical transmission composite cable |
| CN203706729U (en) * | 2014-02-19 | 2014-07-09 | 扬州市金阳光电缆有限公司 | Water blocking water-tree-resistant medium-voltage power cable |
| CN205028701U (en) * | 2015-10-13 | 2016-02-10 | 安徽新亚特电缆集团有限公司 | Medium voltage power cable entirely blocks water |
| CN205582610U (en) * | 2016-04-15 | 2016-09-14 | 扬州曙光电缆股份有限公司 | Waterproof type middling pressure crosslinked cable |
| CN206877712U (en) * | 2017-05-27 | 2018-01-12 | 江苏双登电力科技有限公司 | Photoelectricity composite water-proof and water repellent electric cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741877A (en) * | 2019-02-28 | 2019-05-10 | 远东电缆有限公司 | Wisdom energy wind-powered electricity generation, which is used up to reply by cable, closes shielded flexible cable and its production technology |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170818 |
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