CN106098238A - 500kV cross-linked polyethylene insulating submarine power cable - Google Patents
500kV cross-linked polyethylene insulating submarine power cable Download PDFInfo
- Publication number
- CN106098238A CN106098238A CN201610640955.2A CN201610640955A CN106098238A CN 106098238 A CN106098238 A CN 106098238A CN 201610640955 A CN201610640955 A CN 201610640955A CN 106098238 A CN106098238 A CN 106098238A
- Authority
- CN
- China
- Prior art keywords
- outside equipped
- conductor
- cross
- power cable
- sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 21
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 229920000573 polyethylene Polymers 0.000 claims abstract description 21
- -1 polyethylene Polymers 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims abstract description 19
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine 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
- 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
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of 500kV cross-linked polyethylene insulating submarine power cable, including water-blocking conductor, conductor shield, insulating barrier, insulation screen, waterstop lapping layer, metal sheath, polyethylene sheath, armor and outer jacket；It is outside equipped with conductor shield at water-blocking conductor, it is outside equipped with insulating barrier at conductor shield, it is outside equipped with insulation screen at insulating barrier, it is outside equipped with waterstop lapping layer at insulation screen, it is outside equipped with metal sheath at waterstop lapping layer, it is outside equipped with polyethylene sheath at metal sheath, is outside equipped with armor in polyethylene sheath, be outside equipped with outer jacket at armor.The power cable of the present invention has the transmission advantages such as current-carrying capacity is big, dielectric loss is low, producing cost is low, operation maintenance is convenient, lead the technological innovation of world's Cable industry, comply with national resources development strategy, meet the needs of national energy building security, China's economic development is produced far-reaching influence.
Description
Technical field
The present invention relates to a kind of submarine cable, particularly to a kind of 500kV electric pressure crosslinked polyetylene insulated seabed electricity
Power cable, the invention belongs to technical field of cable.
Background technology
500kV cross-linked polyethylene insulated cable first Application in 1997 is in hydroenergy storage station, and 500kV cross-links poly-second afterwards
Alkene insulated power cable is widely used in urban distribution network and large industrial enterprise., improve along with manufacturing process and 500kV cross-link
Polyethylene-insulated power cable Practical Project operating experience make supertension extrude the reliability of cross-linked polyethylene insulated cable also by
Step obtains approval, and the development for 500kV cross-linked polyethylene insulating submarine power cable is laid a good foundation.
China's ocean development and the industrial fast development with tourist industry of offshore island, increasing to the demand of electric power, former
220kV and can not meet the electricity needs quickly increased with cable road of plunging into the commercial sea, the development of coastal wind-powered electricity generation is also required to get more and more
High-pressure undersea cable wind energy is sent electric energy transmission close on electrical network, therefore 500kV submarine cable in the urgent need to.At present
The many employings of 500kV submarine cable oil-filled type submarine cable, but oil-filled type submarine cable has installation inconvenience, maintenance workload
Greatly, the shortcoming such as dielectric loss is big.The crosslinked polyetylene insulated submarine cable of 500kV, for above not enough, has obvious superiority.
Summary of the invention
Goal of the invention: the invention aims to solve deficiency of the prior art, it is provided that a kind of 500kV cross-links poly-second
Alkene insulation sea electric power cable, this cable has that transmission current-carrying capacity is high, dielectric loss is little, production efficiency is high and is easily installed and lays
With advantages such as maintenances.
Technical scheme: a kind of 500kV cross-linked polyethylene insulating submarine power cable of the present invention, leads including blocking water
Body, conductor shield, insulating barrier, insulation screen, waterstop lapping layer, metal sheath, polyethylene sheath, armor and outer
Sheath；It is outside equipped with conductor shield at water-blocking conductor, is outside equipped with insulating barrier at conductor shield, be outside equipped with at insulating barrier
Insulation screen, is outside equipped with waterstop lapping layer at insulation screen, is outside equipped with metal sheath at waterstop lapping layer,
Metal sheath is outside equipped with polyethylene sheath, is outside equipped with armor in polyethylene sheath, is outside equipped with outer jacket at armor.
Further, described water-blocking conductor uses and presses circle or the annealed copper conductor of Splittable not metal cladding, leads
Internal portion indulges bag semiconductor waterstop, and is wound around water blocking yarn, and semi-conductive tape and water blocking yarn all cover in strand and conductor space.
Further, described conductor shield, insulating barrier, insulation screen use the mode simultaneously extruded.
Further, described conductor shield uses semiconductive to tie up, and waterstop is wrapped and ultra-smooth semiconductive shieldin material
Extrude composition.
Further, described insulating barrier uses ultra-clean cross-linked polyethylene insulating material material to be extruded in conductor shielding uniformly
On layer.
Further, described insulation screen uses ultra-smooth semiconductive shieldin material directly to extrude on the insulating layer.
Further, described waterstop lapping layer uses 1.0mm thickness double-side type semiconductor waterstop material two-layer weight
Lap wound wraps on insulation screen；Or use 0.5mm thickness double-side type semiconductor waterstop material four ply around wrapping in insulation
On screen layer, waterstop specific insulation ＜ 1 × 105Ω .cm, as buffer protection layer and longitudinal water-blocking layer.
Further, described metal sheath uses continuous sealing structure, uses the alloy lead that processing characteristics is excellent direct
It is extruded on semi-conducting water-resistant tape layer, as radial direction waterproof layer.
Further, described polyethylene sheath uses semiconductive polyethylene or insulation polythene thermoplastic protective cover material direct
It is extruded on metal sheath, is further used as radially waterproof layer.
Further, described armor uses round copper wire or flat copper silk to be wound around composition, it is possible to use round steel wire or band steel
Silk is wound around composition；On the described outer jacket direct wrapped armor of polypropylene PP cordage by Colophonium coating and diameter 2 ~ 4mm.
Beneficial effect: beneficial effects of the present invention is as follows:
(1) the crosslinked polyetylene insulated submarine cable of 500kV have transmission current-carrying capacity is big, dielectric loss is low, producing cost is low, run
The advantage such as easy to maintenance, has led the technological innovation of world's Cable industry.
(2) the crosslinked polyetylene insulated submarine cable of 500kV has filled up state, inside and outside blank.
(3) national resources development strategy complied with by the crosslinked polyetylene insulated submarine cable of 500kV, meets national energy construction
Security needs, produces far-reaching influence to China's economic development.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
A kind of 500kV cross-linked polyethylene insulating submarine power cable as shown in Figure 1, including water-blocking conductor 1, conductor shielding
Layer 2, insulating barrier 3, insulation screen 4, waterstop lapping layer 5, metal sheath 6, polyethylene sheath 7, armor 8 and outer jacket
9；It is outside equipped with conductor shield 2 at water-blocking conductor 1, is outside equipped with insulating barrier 3 at conductor shield 2, in the outer setting of insulating barrier 3
There is insulation screen 4, be outside equipped with waterstop lapping layer 5 at insulation screen 4, be outside equipped with metal at waterstop lapping layer 5
Sheath 6, is outside equipped with polyethylene sheath 7 at metal sheath 6, is outside equipped with armor 8 in polyethylene sheath 7, outside armor 8
It is provided with outer jacket 9.
Described water-blocking conductor 1 uses and presses circle or the annealed copper conductor of Splittable not metal cladding, and conductor is indulged
Bag semiconductor waterstop, and it is wound around water blocking yarn, semi-conductive tape and water blocking yarn all cover in strand and conductor space.
Described conductor shield 2, insulating barrier 3, insulation screen 4 use extrusion way simultaneously.
Described conductor shield 2 use semiconductive tie up waterstop wrapped+ultra-smooth semiconductive shieldin material extrudes composition.
Described insulating barrier 3 uses ultra-clean cross-linked polyethylene insulating material material to be extruded in uniformly on conductor shielding.
Described insulation screen 4 uses ultra-smooth semiconductive shieldin material directly to extrude on the insulating layer.
Described waterstop lapping layer 5 uses 1.0mm thickness double-side type semiconductor waterstop material 2 ply around wrapping in absolutely
Edge shielding is upper or 0.5mm thickness double-side type semiconductor waterstop material 4 ply is around wrapping on insulation shielding, waterstop volume electricity
Resistance rate ＜ 1 × 105Ω .cm, as buffer protection layer and longitudinal water-blocking layer.
Described metal sheath 6 uses continuous sealing structure, and the alloy lead using processing characteristics excellent is directly extruded in half
On conduction waterstop lapping layer, as radial direction waterproof layer.
Described polyethylene sheath 7 uses semiconductive polyethylene or insulation polythene thermoplastic protective cover material to be directly extruded in gold
Belong on sheath, be further used as radially waterproof layer.
Described armor 8 uses round copper wire or flat copper silk to be wound around composition, it is possible to use round steel wire or flat wire to twine
Around composition.
Described outer jacket 9 is by group on the direct wrapped armor of polypropylene PP cordage of Colophonium coating and diameter 2 ~ 4mm
Becoming, Colophonium uses high-melting-point, high adhesion, the special asphalt of resistance to embrittlement, and PP cordage uses the high-strength materials such as wear-resisting, anticorrosive.
Sea electric power cable has that system design is complicated, use that bad environments is changeable, product manufacturing equipment and technological requirement
The high technological difficulties generally acknowledged for world's line cable industry, are one of ocean development field key technologies, are also offshore wind farm and island
Small island power development field electric power transmission in the urgent need to.The crosslinked polyetylene insulated submarine cable of 500kV have transmission current-carrying capacity high,
Dielectric loss is little, production efficiency is high and is easily installed and lays and the advantage such as maintenance.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this specialty
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
Any simple modification, equivalent variations and the modification being made above example, all still falls within the range of technical solution of the present invention.
Claims (10)
1. a 500kV cross-linked polyethylene insulating submarine power cable, it is characterised in that: include water-blocking conductor (1), conductor shielding
Layer (2), insulating barrier (3), insulation screen (4), waterstop lapping layer (5), metal sheath (6), polyethylene sheath (7), armouring
Layer (8) and outer jacket (9)；It is outside equipped with conductor shield (2) at water-blocking conductor (1), is outside equipped with at conductor shield (2)
Insulating barrier (3), is outside equipped with insulation screen (4) at insulating barrier (3), is outside equipped with waterstop at insulation screen (4) wrapped
Layer (5), is outside equipped with metal sheath (6) at waterstop lapping layer (5), is outside equipped with polyethylene sheath at metal sheath (6)
(7), it is outside equipped with armor (8) in polyethylene sheath (7), is outside equipped with outer jacket (9) at armor (8).
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Water-blocking conductor (1) use press circle or the annealed copper conductor of Splittable not metal cladding, conductor indulge bag semiconductive resistance
Water band, and it is wound around water blocking yarn, semi-conductive tape and water blocking yarn all cover in strand and conductor space.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Conductor shield (2), insulating barrier (3), insulation screen (4) use the mode simultaneously extruded.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Conductor shield (2) use semiconductive to tie up waterstop is wrapped and ultra-smooth semiconductive shieldin material extrudes composition.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Insulating barrier (3) use ultra-clean cross-linked polyethylene insulating material material be extruded in uniformly on conductor shield (2).
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Insulation screen (4) use ultra-smooth semiconductive shieldin material be directly extruded on insulating barrier (3).
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Waterstop lapping layer (5) use 1.0mm thickness double-side type semiconductor waterstop material two superimposed around wrapping in insulation screen
(4) on；Or use 0.5mm thickness double-side type semiconductor waterstop material four ply around wrapping on insulation screen (4), block water
Band specific insulation ＜ 1 × 105Ω .cm, as buffer protection layer and longitudinal water-blocking layer.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Metal sheath (6) use continuous sealing structure, the alloy lead using processing characteristics excellent is directly extruded in semiconductor waterstop
On lapping layer (5), as radial direction waterproof layer.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Polyethylene sheath (7) use semiconductive polyethylene or insulation polythene thermoplastic protective cover material be directly extruded in metal sheath (6)
On, it is further used as radially waterproof layer.
A kind of 500kV cross-linked polyethylene insulating submarine power cable the most according to claim 1, it is characterised in that: described
Armor (8) use round copper wire or flat copper silk to be wound around composition, it is possible to use round steel wire or flat wire to be wound around composition；Outside described
In the sheath (9) the direct wrapped armor of the polypropylene PP cordage (8) by Colophonium coating and diameter 2 ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640955.2A CN106098238A (en) | 2016-08-08 | 2016-08-08 | 500kV cross-linked polyethylene insulating submarine power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640955.2A CN106098238A (en) | 2016-08-08 | 2016-08-08 | 500kV cross-linked polyethylene insulating submarine power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106098238A true CN106098238A (en) | 2016-11-09 |
Family
ID=57454217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610640955.2A Pending CN106098238A (en) | 2016-08-08 | 2016-08-08 | 500kV cross-linked polyethylene insulating submarine power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106098238A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653183A (en) * | 2017-01-06 | 2017-05-10 | 江苏亨通高压海缆有限公司 | Super-capacity crosslinked polyethylene insulated photoelectric composite submarine cable |
| CN107610832A (en) * | 2017-09-19 | 2018-01-19 | 江苏亨通高压海缆有限公司 | Submarine cable with ultralow thermal resistance loss and preparation method thereof |
| WO2019061176A1 (en) * | 2017-09-27 | 2019-04-04 | 中天科技海缆有限公司 | Single-core submarine cable |
| CN111584137A (en) * | 2020-05-27 | 2020-08-25 | 中天科技海缆有限公司 | Low-induction-voltage submarine cable and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103823A (en) * | 1996-06-14 | 1998-01-06 | Fujikura Ltd | DC cross-linked polyethylene insulated power cable |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN202307273U (en) * | 2011-09-29 | 2012-07-04 | 宜昌联邦电缆有限公司 | Cross-linked polyethylene insulating single core submarine power cable used for ultra-high voltage AC power transmission |
| CN203444851U (en) * | 2013-07-22 | 2014-02-19 | 重庆三峡电缆(集团)有限公司 | Cross-linked polyethylene insulated power cable with rated voltage 66 to 500 kV |
| CN104810107A (en) * | 2014-10-11 | 2015-07-29 | 安徽明星电缆有限公司 | Novel electrified railway cable and manufacture process thereof |
-
2016
- 2016-08-08 CN CN201610640955.2A patent/CN106098238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103823A (en) * | 1996-06-14 | 1998-01-06 | Fujikura Ltd | DC cross-linked polyethylene insulated power cable |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN202307273U (en) * | 2011-09-29 | 2012-07-04 | 宜昌联邦电缆有限公司 | Cross-linked polyethylene insulating single core submarine power cable used for ultra-high voltage AC power transmission |
| CN203444851U (en) * | 2013-07-22 | 2014-02-19 | 重庆三峡电缆(集团)有限公司 | Cross-linked polyethylene insulated power cable with rated voltage 66 to 500 kV |
| CN104810107A (en) * | 2014-10-11 | 2015-07-29 | 安徽明星电缆有限公司 | Novel electrified railway cable and manufacture process thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653183A (en) * | 2017-01-06 | 2017-05-10 | 江苏亨通高压海缆有限公司 | Super-capacity crosslinked polyethylene insulated photoelectric composite submarine cable |
| CN106653183B (en) * | 2017-01-06 | 2018-07-06 | 江苏亨通高压海缆有限公司 | Super-capacity crosslinked polyethylene insulated photoelectric composite submarine cable |
| CN107610832A (en) * | 2017-09-19 | 2018-01-19 | 江苏亨通高压海缆有限公司 | Submarine cable with ultralow thermal resistance loss and preparation method thereof |
| WO2019061176A1 (en) * | 2017-09-27 | 2019-04-04 | 中天科技海缆有限公司 | Single-core submarine cable |
| CN111584137A (en) * | 2020-05-27 | 2020-08-25 | 中天科技海缆有限公司 | Low-induction-voltage submarine cable and preparation method thereof |
| CN111584137B (en) * | 2020-05-27 | 2021-09-17 | 南海海缆有限公司 | Low-induction-voltage submarine cable and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20161109 |