CN110246611A - High-tension apparatus electrical cable and preparation method thereof - Google Patents
High-tension apparatus electrical cable and preparation method thereof Download PDFInfo
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- CN110246611A CN110246611A CN201910547917.6A CN201910547917A CN110246611A CN 110246611 A CN110246611 A CN 110246611A CN 201910547917 A CN201910547917 A CN 201910547917A CN 110246611 A CN110246611 A CN 110246611A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
- H01B7/303—Conductors comprising interwire insulation
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The present invention relates to a kind of high-tension apparatus electrical cables and preparation method thereof, belong to technical field of electric wires and cables.Polymer overmold on the conductive material, is formed one layer of continuous polymer insulation layer in conductive surface by it；Several conductors of coated polymer insulating layer are constituted into high-tension apparatus electrical cable with fine pith concentric stranding.In the connecting line unit of high-tension apparatus electrical cable of the present invention, coated polymer insulating layer can prevent conductor indium, reduce connecting line kelvin effect.The advantages that preparation method simple possible of the present invention, technique is easy to accomplish, and it is good that the product of preparation has a flexibility, pliable, and corrosion resistant performance is strong.
Description
Technical field
The present invention relates to a kind of high-tension apparatus electrical cables and preparation method thereof, belong to technical field of electric wires and cables.
Background technique
With the fast development of UHV transmission line, the security requirement of system for ultra-high voltage transmission is also being continuously improved.
It is important composition portion indispensable in entire distributing system in UHV Transmission Engineering mesohigh substation and high-voltage convertor station
Point.Electric terminal spacing between high-voltage power distribution equipment in distributing system is smaller, and current-carrying capacity is big, frequently with fexible conductor and electricity
The mating elastic connection of net engineering fitting, therefore conductor diameter should not be too large.Conductor is in alternating electric field environment or passes through alternating current
When, because kelvin effect can make even by the current distribution is uneven of conductor, electric current can be concentrated mainly on conductor surface layer, and internal current is close
It spends and small.In order to avoid the adverse consequences of kelvin effect, the diameter enlarging bus bar that industry has enterprise to use central tube support at present.But expand
Diameter bus flexibility is poor, the electrical connection being difficult between high-voltage power distribution equipment.
Use, the prior art are connected in order to adapt to high voltage substation with the electric terminal of high-voltage power distribution equipment in high-voltage convertor station
In, patent CN105931702A discloses a kind of fine pith flexibility aluminum stranded conductor and preparation method thereof.Fine pith flexibility aluminum stranded conductor has
Core wire, the aluminum steel that core wire has point multilayer twisted outside.Patent CN10178321A discloses a kind of manufacturer of small-pitch aluminum stranded wire
The aluminum steel of heat treatment is organized the small-pitch aluminum stranded wire of production by method on crosswise wire strander.It is above-mentioned it is in the prior art be all with small
Pitch to improve the flexibility of conductor, do not improve transmit electric current in conductor be uniformly distributed problem.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned shortcoming, a kind of high-tension apparatus electrical cable and its preparation side are provided
Method, flexible, avoidable kelvin effect.
Technical solution of the present invention on the conductive material by polymer overmold forms one layer in conductive surface and continuously gathers
Close object insulating layer；Several conductors of coated polymer insulating layer are constituted into high-tension apparatus electrical connection with fine pith concentric stranding
Line.
As one embodiment of the present invention, a kind of high-tension apparatus electrical cable, including at least two single lines pass through
Several layers are twisted；The single line includes core material and insulating layer, and insulating layer is coated on outside core material.
As one embodiment of the present invention, a kind of high-tension apparatus electrical cable, including at least two twisted wire warps
It is twisted to cross several layers；The twisted wire includes core material and insulating layer；The core material is twisted into stock, and insulating layer, which is coated on, is twisted into stock
Core material outside.
As one embodiment of the present invention, a kind of high-tension apparatus electrical cable, including single line and twisted wire, at least
Two strands of twisted wires are twisted to form internal layer, is twisted at least two strands of single lines again outside internal layer；The single line includes core material and insulating layer, insulation
Layer is coated on outside core material；The twisted wire includes core material and insulating layer；The core material is twisted into stock, and insulating layer is coated on twisted
Outside the core material of stock.
Further, the core material is metallic conductor；The insulating layer is polymer insulation layer, including polyester, polyester Asia
Amine, acid imide, polyamidoimide, polyetherimide, organosilicon, polyamide, polyphenylene oxide, polyether-ether-ketone, polymethylpentene, three
The combination of one or more of first EP rubbers, bibasic ethylene propylene rubber, tetrafluoroethene, polyvinyl fluoride blend, blend.
Further, the insulating layer with a thickness of 100 ~ 800 μm.
Further, composition single line core material diameter is 2.5 ~ 4.5mm；Form twisted wire single core material diameter be 0.5 ~
1.5mm。
Further, the diameter of the single line and twisted wire is 2.5 ~ 6mm.
Further, the ratio of the twisting pitch of each layer twisted wire and diameter is 1 ~ 15, the section of outer layer twisted layer in adjacent twisted layer
Away from being less than with the ratio of diameter close to the pitch of internal layer twisted layer and the ratio of diameter.
As another embodiment of the invention, the preparation method of high-tension apparatus electrical cable, steps are as follows:
(1) preparation of core material: take the metal material of excellent conductive performance as core material, needed for core material is drawn by wire-drawing equipment
Specification, wherein core material diameter specifications needed for single line are 2.5 ~ 4.5mm, and core material diameter specifications needed for twisted wire are 0.5 ~ 1.5mm；It is right
Gained core material carries out thermal softening processing, and treatment temperature is 240-560 DEG C, and the processing time is 5-300min；
(2) preparation of single line and twisted wire: the coated polymer insulating layer outside the core material that diameter specifications are 2.5 ~ 4.5mm, absolutely
Edge layer with a thickness of 100 ~ 800 μm, obtain single line；
By core material that diameter specifications are 0.5 ~ 1.5mm through twisted forming, external coated polymer insulating layer, insulating layer with a thickness of
100 ~ 800 μm, obtain twisted wire；
(3) stranding: selection stranding mode as needed；The drum of single line and/or twisted wire is mounted on cabling device, it will be single
Line and/or twisted wire are drawn from cabling device framework, by the guided wheel slot of separated time guide wheel, are introduced in wire parallel module；Adjust separated time
The position of guide wheel and doubling mould bases adjusts control connecting line unit strand angle and connecting line unit radical, carries out stranding, obtains
High-tension apparatus electrical cable finished product.
Further, in step (3), make the ratio of high-tension apparatus electrical cable outermost layer twisting pitch and diameter
1.0 ~ 3.5, the ratio of adjacent outer layer twisting pitch and diameter is 3.5 ~ 6.5, the twisting pitch of remaining each layer twisted wire and the ratio of diameter
Value is 6.5 ~ 15；The ratio of the pitch of outer layer twisted layer and diameter is less than close to the pitch of internal layer twisted layer and straight in adjacent conductor twisted layer
The ratio of diameter, and adjacent layer connecting line is twisted to opposite.
Beneficial effects of the present invention: in the connecting line unit of high-tension apparatus electrical cable of the present invention, coated polymer is exhausted
Edge layer can prevent conductor indium, reduce connecting line kelvin effect.Preparation method simple possible of the present invention, technique is easy to accomplish, system
The advantages that it is good that standby product has a flexibility, pliable, and corrosion resistant performance is strong.
Detailed description of the invention
The single line cross-sectional view that the single core material cladding insulating layer of Fig. 1 is constituted.
The twisted wire cross-sectional view that more core material cladding insulating layers of Fig. 2 are constituted.
3 high-tension apparatus electrical cable cross-sectional view of Fig. 3 embodiment.
4 high-tension apparatus electrical cable cross-sectional view of Fig. 4 embodiment.
5 high-tension apparatus electrical cable cross-sectional view of Fig. 5 embodiment.
Fig. 6 connecting line schematic perspective view of the present invention.
Description of symbols: 1, single line；2, twisted wire；3, core material；4, insulating layer；5, connecting line stereochemical structure.
Specific embodiment
1 single line of embodiment
As shown in Figure 1, single line 1 specifically includes core material 3 and insulating layer 4, insulating layer 4 is coated on outside core material 3.
Using the copper wire base or aluminium bar of diameter 6.0mm as core material 3, in MLQHLF1/2SD-6+6/ 12 (7+3+2) hot wind
Diameter 2.5 ~ 4.5mm single line is drawn by wire drawing die on circulation wire drawing enamelling machine, single line successively passes through annealing pipe sofening treatment,
Then 240-520 DEG C for the treatment of temperature upper layer, 320-560 DEG C of lower layer, time 5-60min, cooling device, blow-dry device lead to dress
The device for painting for having the insulating layer 2 of combination of polymers to paint, japanning road number require to be threaded repeatedly across lacquering model, coat japanning
Polymer insulation layer with a thickness of 100 ~ 800 μm, obtain single line 1, by single line 1 receipts be wound on take-up reel.
The paint is specially polyester, polyester-imide, acid imide, polyamidoimide, polyetherimide, organosilicon, gathers
The paint that amide, polyphenylene oxide, polyether-ether-ketone one or more blend, blend combine.
2 twisted wire of embodiment
As shown in Fig. 2, twisted wire 2 specifically includes core material 3 and insulating layer 4；The core material 3 is twisted into stock, and insulating layer 4 is coated on strand
Outside the core material 3 for synthesizing stock.
Using the copper wire or aluminum steel of diameter 3.2mm as core material 3, continuous annealing wire drawing machine is even drawn in YC-17DT, BAOC-14DT
It is drawn into diameter 0.5 ~ 1.5mm single line, more drawing single lines are twisted into the core material 3 of 2.5 ~ 6mm of diameter, core material 3 through stranding machine
Annealing furnace sofening treatment, 240-560 DEG C for the treatment of temperature, time 60-300min, then stranded conductor core material 3 is squeezed by extruding machine
The connecting line unit for extruding polymer insulation receipts are wound on take-up reel by 100 ~ 800 μm of polymer insulation layers 2 of packet thickness.
It is polymethylpentene, ethylene propylene diene rubber, bibasic ethylene propylene rubber, tetrafluoroethene, poly- fluorine that the extrusion molding, which extrudes material,
The combination of one or more of ethylene blend, blend.
3 high-tension apparatus electrical cable of embodiment
It is obtained as shown in figure 3, preparing resulting single line 1 by several embodiments 1 by several layers are twisted.
The single line 1 is mounted on 4 layers of frame by drum and twists in equipment, and center is 1 connecting line unit；First twisted layer is 6
The ratio of root, 25 ° of connecting line unit strand angle, twisting pitch and diameter is 11, and connecting line is twisted to left-hand；Second twisted layer is 12
The ratio of root, 30 ° of connecting line unit strand angle, twisting pitch and diameter is 7, and connecting line is twisted to dextrad；Third twisted layer is 15
The ratio of root, 55 ° of connecting line unit strand angle, twisting pitch and diameter is 3.6, and connecting line is twisted to left-hand；4th twisted layer is 9
The ratio of root, 62 ° of connecting line unit strand angle, twisting pitch and diameter is 1.2, and connecting line is twisted to dextrad, and stranding obtains height
Press equipment electrical cable finished product.
Connecting line stereochemical structure 5 is as shown in Figure 6.
4 high-tension apparatus electrical cable of embodiment
As shown in figure 4, several twisted wires 2 prepared by embodiment 2 are obtained by several layers are twisted.
Twisted wire 2 is mounted on 4 layers of frame by drum and twists in equipment, and center is 1 connecting line unit；First twisted layer is 6,
The ratio of 20 ° of connecting line unit strand angle, twisting pitch and diameter is 14.5, and connecting line is twisted to left-hand；Second twisted layer is 12
The ratio of root, 25 ° of connecting line unit strand angle, twisting pitch and diameter is 11, and connecting line is twisted to dextrad；Third twisted layer is 15
The ratio of root, 35 ° of connecting line unit strand angle, twisting pitch and diameter is 6.2, and connecting line is twisted to left-hand；4th twisted layer is 9
The ratio of root, 55 ° of connecting line unit strand angle, twisting pitch and diameter is 3.5, and connecting line is twisted to dextrad, and stranding obtains height
Press equipment electrical cable finished product.
Connecting line stereochemical structure 5 is as shown in Figure 6.
5 high-tension apparatus electrical cable of embodiment
As shown in figure 5, including single line 1 prepared by embodiment 1 and twisted wire 2 prepared by embodiment 2；If being twisted by carried interest twisted wire 2
Conjunction forms internal layer, if being twisted carried interest single line 1 outside internal layer again.
By single line 1 prepared by embodiment 1 by drum be mounted on 4 layers of frame twist equipment center and it is two layers first on, center 1
Root single line 1, the first twisted layer are 6,22 ° of connecting line unit strand angle, and the ratio of twisting pitch and diameter is 12.5, connecting line
It twists to left-hand；Second twisted layer is 12,28 ° of connecting line unit strand angle, and the ratio of twisting pitch and diameter is 9, connecting line
It twists to dextrad；
Twisted wire 2 prepared by embodiment 2 is mounted on frame by drum to twist on the rear two sides of equipment；Third twisted layer is 15, even
40 ° of wiring units strand angle, the ratio of twisting pitch and diameter is 5, and connecting line is twisted to left-hand；4th twisted layer is 9, connection
The ratio of 55 ° of line unit strand angle, twisting pitch and diameter is 2.5, and connecting line is twisted to dextrad, and stranding obtains high-tension apparatus
Electrical cable finished product.
Connecting line stereochemical structure 5 is as shown in Figure 6.
Claims (10)
1. high-tension apparatus electrical cable, it is characterized in that: including that at least two single lines (1) are twisted by several layers；The single line
It (1) include core material (3) and insulating layer (4), insulating layer (4) is coated on the outside of core material (3).
2. high-tension apparatus electrical cable, it is characterized in that: including that at least two twisted wires (2) are twisted by several layers；The strand
Zygonema (2) includes core material (3) and insulating layer (4)；The core material (3) is twisted into stock, and insulating layer (4) is coated on the core for being twisted into stock
Material (3) is external.
3. high-tension apparatus electrical cable, it is characterized in that: including single line (1) and twisted wire (2), at least two bursts of twisted wires (2) are twisted
Conjunction forms internal layer, is twisted at least two bursts of single lines (1) again outside internal layer；
The single line (1) includes core material (3) and insulating layer (4), and it is external that insulating layer (4) is coated on core material (3)；The twisted wire
It (2) include core material (3) and insulating layer (4)；The core material (3) is twisted into stock, and insulating layer (4) is coated on the core material for being twisted into stock
(3) outside.
4. the high-tension apparatus electrical cable as described in one of claim 1-3, it is characterized in that: the core material (3) is metallic conductor；
The insulating layer (4) is polymer insulation layer, specifically includes polyester, polyester-imide, acid imide, polyamidoimide, polyethers acyl
Imines, organosilicon, polyamide, polyphenylene oxide, polyether-ether-ketone, polymethylpentene, ethylene propylene diene rubber, bibasic ethylene propylene rubber, tetrafluoro
The combination of one or more of ethylene, polyvinyl fluoride blend, blend.
5. the high-tension apparatus electrical cable as described in one of claim 1-3, it is characterized in that: the insulating layer (4) with a thickness of
100~800μm。
6. the high-tension apparatus electrical cable as described in one of claim 1-3, it is characterized in that: composition single line (1) core material (3) diameter
For 2.5 ~ 4.5mm；Single core material (3) diameter for forming twisted wire (2) is 0.5 ~ 1.5mm.
7. the high-tension apparatus electrical cable as described in one of claim 1-3, it is characterized in that: the single line (1) and twisted wire (2)
Diameter be 2.5 ~ 6mm.
8. the high-tension apparatus electrical cable as described in one of claim 1-3, it is characterized in that: the twisting pitch of each layer twisted wire and straight
The ratio of diameter is 1 ~ 15, and the ratio of the pitch of outer layer twisted layer and diameter is less than close to the pitch of internal layer twisted layer and straight in adjacent twisted layer
The ratio of diameter.
9. the preparation method of high-tension apparatus electrical cable, it is characterized in that steps are as follows:
(1) preparation of core material: taking the metal material of excellent conductive performance as core material (3), and core material (3) is drawn by wire-drawing equipment
At required specification, wherein core material (3) diameter specifications needed for single line (1) are 2.5 ~ 4.5mm, core material (3) diameter needed for twisted wire (2)
Specification is 0.5 ~ 1.5mm；Thermal softening processing is carried out to gained core material (3), treatment temperature is 240-560 DEG C, and the processing time is 5-
300min；
(2) preparation of single line and twisted wire: in the external coated polymer insulating layer of core material (3) that diameter specifications are 2.5 ~ 4.5mm
(4), insulating layer (4) with a thickness of 100 ~ 800 μm, obtain single line (1)；
The core material (3) that diameter specifications are 0.5 ~ 1.5mm is shaped through twisted, external coated polymer insulating layer (4), insulating layer
(4) with a thickness of 100 ~ 800 μm, obtain twisted wire (2)；
(3) stranding: selection stranding mode as needed；The drum of single line (1) and/or twisted wire (2) is mounted on cabling device
On, single line (1) and/or twisted wire (2) are drawn from cabling device framework, by the guided wheel slot of separated time guide wheel, introduce doubling
In mould；The position of separated time guide wheel and doubling mould bases is adjusted, control connecting line unit strand angle and connecting line unit radical are adjusted,
Stranding is carried out, high-tension apparatus electrical cable finished product is obtained.
10. the preparation method of high-tension apparatus electrical cable as claimed in claim 9, it is characterized in that: making high pressure in step (3)
The ratio of equipment electrical cable outermost layer twisting pitch and diameter is 1.0 ~ 3.5, the ratio of adjacent outer layer twisting pitch and diameter
It is 3.5 ~ 6.5, the twisting pitch of remaining each layer twisted wire and the ratio of diameter are 6.5 ~ 15；Outer layer twisted layer in adjacent conductor twisted layer
The ratio of pitch and diameter is less than close to the pitch of internal layer twisted layer and the ratio of diameter, and adjacent layer connecting line is twisted to opposite.
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| CN201910547917.6A CN110246611A (en) | 2019-06-24 | 2019-06-24 | High-tension apparatus electrical cable and preparation method thereof |
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| CN201910547917.6A CN110246611A (en) | 2019-06-24 | 2019-06-24 | High-tension apparatus electrical cable and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023121359A1 (en) * | 2021-12-24 | 2023-06-29 | 엘에스전선 주식회사 | Flexibility-improved central tensile member for overhead transmission cable, and overhead transmission cable including same |
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| CN202473301U (en) * | 2012-03-13 | 2012-10-03 | 广州凯恒特种电线电缆有限公司 | Four-core twisted shielded wire cable for aerospace |
| CN203573676U (en) * | 2013-11-18 | 2014-04-30 | 江苏珠影特种电缆有限公司 | Highly soft cable |
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| CN109074946A (en) * | 2016-04-22 | 2018-12-21 | 古河电气工业株式会社 | Coiling, coil and transformer |
| CN205751653U (en) * | 2016-05-04 | 2016-11-30 | 上海斯麟特种设备工程有限公司 | Lightning protected cable |
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| CN208422444U (en) * | 2018-06-28 | 2019-01-22 | 重庆鸽牌电线电缆有限公司 | A kind of curved interfacility link of bending resistance |
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| WO2023121359A1 (en) * | 2021-12-24 | 2023-06-29 | 엘에스전선 주식회사 | Flexibility-improved central tensile member for overhead transmission cable, and overhead transmission cable including same |
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