CN106024187A - Cross-linked polyethylene insulated power cable for smart energy in shallow seas and lakes and manufacturing method thereof - Google Patents
Cross-linked polyethylene insulated power cable for smart energy in shallow seas and lakes and manufacturing method thereof Download PDFInfo
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- CN106024187A CN106024187A CN201610514723.2A CN201610514723A CN106024187A CN 106024187 A CN106024187 A CN 106024187A CN 201610514723 A CN201610514723 A CN 201610514723A CN 106024187 A CN106024187 A CN 106024187A
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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
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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
-
- 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
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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
-
- 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
-
- 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
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- Insulated Conductors (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The present invention discloses a cross-linked polyethylene insulated power cable for smart energy in shallow seas and lakes and a manufacturing method thereof. The cable successively comprises a cable core, a semiconductive buffer water-blocking tape, a metal protective layer, an isolation layer, a metal wire armor layer and an outer protective layer from inside to outside. The cable core comprises at least one insulated wire core. Each insulated wire core successively comprises a water-blocking conductor, a semiconductive conductor shielding layer, a crosslinked polyethylene insulation layer and a semiconductive insulation shielding layer from inside to outside. A metal shielding layer is arranged outside the insulated wire core. The water-blocking conductor is composed of twisted metal filaments and water-blocking yarns that longitudinally cover the outside of the filaments, wherein gaps among the filaments and the yarns are filled with water-blocking powders. According to the technical scheme of the invention, the power transmission capability in the near-distance underwater continuous manner is realized, and the requirements of water prevention, corrosion prevention and large sea water flushing tension can be met. Meanwhile, the power cable replaces a conventional sub-sea cable of a complex structure and simplifies the the cable manufacturing process. Moreover, the production efficiency is improved and the unnecessary cost waste is avoided.
Description
Technical field
The present invention relates to a kind of the wisdom energy crosslinked polyetylene insulated shallow sea lake power cable and manufacture method.
Background technology
China is an ocean big country, has marine site and 18000 kilometers of long coastlines, the edge of more than 300 ten thousand square kilometres
Sea is distributed more than 6000 island, and be richly stored with offshore oil field and natural gas on continental shelf, shallow sea, and coastal is again me
State well-developed region, domestic coastal island development is badly in need of electricity consumption, owing to construction power station cost is high, the cycle is long, adds combustion
The factors such as material supply bottleneck, so, power supply, communication (the most military secret communication) to middle-size and small-size island are required for
Solved by submarine cable.
Along with the exploitation of shallow sea offshore wind-powered electricity generation, offshore island rises with the tourism of inland lake, connect continent and shallow sea wind field,
The cabling requirements that limit, lake bank crosses lake with island, the middle of a lake and mistake river is on the increase.These specific occasions, between each facility away from
From as far as 3~5km, near distance is namely tens, between hundreds of rice, use traditional long length submarine cable to connect
Mode transmits electric power and communication, just seems and cannot not waste one's talent on a petty job suitablely, and simultaneously in seashore tide Coastal Area, common cable is again
It is difficult to meet waterproof anti-corrosion and the requirement of seawater scouring hightension, therefore lake, market urgent needs one Novel light shallow sea
Pool private cable.
At present, 35kV and following submarine cable mainly extrude lead alloy sheath based on split-phase, it is characterised in that dividing
Phase cable core conductor longitudinal water-blocking combines with extruding metal set radially group water, but lead set is a heavily contaminated source, environmental issue
Seriously.Therefore for shallow sea and this specific occasion, lake, it is not suitable for using the lead sheath structure of original submarine cable.
Summary of the invention
First purpose of the present invention is to provide a kind of waterproof resistance to long period of soaking, corrosion-resistant environmental protection heavy metal free pollutes, electrically
Good insulation preformance, tension, tensile energy are strong, be fixedly connected the wisdom energy lake, crosslinked polyetylene insulated shallow sea laid
Power cable.
The technical scheme realizing the object of the invention is wisdom energy lake, crosslinked polyetylene insulated shallow sea power cable, by interior
To being followed successively by outward cable core, semi-conductive buffer water-blocking band, metal sheath, sealing coat, tinsel armor and outer jacket;Institute
State cable core and include at least insulated wire cores;Every insulated wire cores is followed successively by water-blocking conductor, semiconductive conductor screen from the inside to the outside
Cover layer, crosslinked polyetylene insulated layer and semi-conductive insulation shield layer;Outside described insulated wire cores, metal screen layer is set;Described
Water-blocking conductor is longitudinally to be coated with outside stranded metal monofilament at water blocking yarn, and hole to fill water-proofing powder.
Described insulated wire cores is many, and many arrange the filling that blocks water between insulated wire cores and semi-conductive buffer water-blocking band.
The first structure of described metal sheath is the aluminium-plastic tape being longitudinally coated on outside cable core and extrudes in plastic-aluminum combined
The composite construction of the layer of polyethylene sheath outside band;The second structure is that the corrugated aluminium metal being longitudinally coated on outside cable core protects
Set, the answering of the layer of polyethylene sheath extruded outside the Colophonium of coating or PUR anticorrosive coat and anticorrosive coat outside metallic aluminium sheath
Close structure.
The first structure of described tinsel armor is the stainless of nonmagnetic a diameter of 3.15mm or 4.0mm of multiply
The lay configuration of steel wire;The second structure be a diameter of 3.15mm or 4.0mm of multiply the stranded knot of zinc-coated wire
Structure.
The structure of described outer jacket is the radial direction water resistant polyurea ethylene composite bed with the anticorrosion polypropylene fibre of outer layer of internal layer.
Second object of the present invention is to provide and can produce waterproof resistance to long period of soaking, the dirt of corrosion-resistant environmental protection heavy metal free
Dye, electrical insulation properties is good, tension, tensile energy strong, be fixedly connected and lay, it is adaptable to the ring under water such as shallow sea, lake
The method of the cable of border transmission electric power.
The technical scheme realizing second purpose of the present invention is: a kind of wisdom energy lake, crosslinked polyetylene insulated shallow sea electricity
The manufacture method of power cable, the construction of cable uses as previously mentioned;Manufacture method comprises the following steps:
Step one: make water-blocking conductor;
Step 2: make insulated wire cores stranding;According to single insulated wire cores structure, then insulated wire cores outer cladding metal
Screen layer becomes cable core;According to the structure of many insulated wire cores, then at every insulated wire cores outer cladding metal screen layer,
Then to carry out many cores stranded for employing dish winch, adds waterproofing rope as the filling that blocks water in stranded intermediate space, after stranding
Hold one layer of semi-conductive buffer water-blocking band;
Step 3: make metal sheath;
Step 4: make sealing coat;
Step 5: make tinsel armor;
Step 6: make outer jacket.
In described step one, use France's Pourtier type 91 dish frame winch that metal monofilament carries out circle and press strand system,
The interlayer structure of strand system longitudinally wraps into water blocking yarn, and adds water-proofing powder, and the water-blocking conductor completed is carried out D.C. resistance
With permeable test.
In described step 2, by CCV catenary suspension type continuous vulcanization production line by semiconductive conductor shield, crosslinked polyetylene insulated layer
Three-layer co-extruded with semi-conductive insulation shield layer, the insulated wire cores completed carries out drying room heat de-airing.
In described step 2, metal screen layer is copper strips, aluminium strip or aluminum alloy strip.
Described sealing coat is polyethylene sheath.
After have employed technique scheme, the present invention has following positive effect: (1) present invention achieves closely
The ability of water-bed continuation mode electric power transmission, can meet waterproof anti-corrosion and the requirement of seawater scouring hightension, it is possible to replace
Baroque conventional subsea cable, simplifies the manufacture process of cable, improves production efficiency, it is to avoid unnecessary cost
Waste.
(2) metal sheath of the present invention uses aluminium-plastic tape integrated sheath or corrugated metal aluminium sheath, has excellent
The most waterproof, antiseptic property, heavy metal lead sheath in alternative conventional subsea cable, it is to avoid use metal in producing
The thermal processing method of extrusion, reduces the technology difficulty of cables manufacturing, additionally the metal sheath mechanical strength of the present invention high,
Lightweight, during mounting and installation the most convenient favorably, and aluminum is not belonging to source of heavy metal pollution, to environment ring protection
Require that high occasion is the most suitable.
(3) present invention adds in cable conductor and cable core water blocking yarn and waterstop, broken by external force at cable
During bad appearance infiltration fault, moisture can be effectively blocked and spread along cable axial direction, reduce moisture and immerse the length of cable,
Can be continuing with after cable segmentation, minimizing cost allowance of increasing operation rate.
(4) cable of the method manufacture of the present invention has waterproof resistance to long period of soaking, corrosion-resistant, and tension, tensile energy are strong,
The reliable feature of performance safety.
Accompanying drawing explanation
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, to this
Invention is described in further detail, wherein
Fig. 1 is the structural representation of the embodiment of the present invention 1, is single structure in figure.
Fig. 2 is the structural representation of the embodiment of the present invention 2, is three-core structure in figure.
Accompanying drawing is numbered:
Cable core 1, insulated wire cores 11, water-blocking conductor 11-1, semiconductive conductor shield 11-2, crosslinked polyetylene insulated layer
11-3, semi-conductive insulation shield layer 11-4, metal screen layer 12, the filling 13 that blocks water, semi-conductive buffer water-blocking band 2, gold
Belong to sheath 3, sealing coat 4, tinsel armor 5, outer jacket 6.
Detailed description of the invention
See Fig. 1, the wisdom energy of the present embodiment lake, crosslinked polyetylene insulated shallow sea power cable, use single structure,
It is followed successively by cable core 1, semi-conductive buffer water-blocking band 2, metal sheath 3, sealing coat 4, tinsel armor 5 from the inside to the outside
With outer jacket 6;Cable core 1 includes an insulated wire cores 11;Insulated wire cores 11 be followed successively by from the inside to the outside water-blocking conductor 11-1,
Semiconductive conductor shield 11-2, crosslinked polyetylene insulated layer 11-3 and semi-conductive insulation shield layer 11-4;Insulated wire cores
Metal screen layer 12 is set outside 11;Water-blocking conductor 11-1 is longitudinally to be coated with water blocking yarn, and hole outside stranded metal monofilament
Water-proofing powder is filled at place.The structure of metal sheath 3 is longitudinally to be coated on the aluminium-plastic tape outside cable core 1 and extrude in plastic-aluminum multiple
The composite construction of the layer of polyethylene sheath outside crossed belt;Or for the corrugated aluminium protective metal shell being longitudinally coated on outside cable core 1,
The layer of polyethylene sheath extruded outside the Colophonium of coating or PUR anticorrosive coat and anticorrosive coat outside metallic aluminium sheath compound
Structure.The structure of tinsel armor 5 is the stainless steel silk of nonmagnetic a diameter of 3.15mm or 4.0mm of multiply
Lay configuration;Or be a diameter of 3.15mm or 4.0mm of multiply the stranded structure of zinc-coated wire.Outer jacket 6
The composite bed of anticorrosion polypropylene fibre of the radial direction water resistant polyurea ethylene that structure is internal layer and outer layer.
Manufacture method comprises the following steps:
Step one: make water-blocking conductor 11-1;Use France's Pourtier type 91 dish frame winch that metal monofilament is carried out circle
Pressing strand system, the interlayer structure in strand system longitudinally wraps into water blocking yarn, and adds water-proofing powder, to the water-blocking conductor completed
11-1 carries out D.C. resistance and permeable test.
Step 2: make insulated wire cores 11 stranding;Insulated wire cores 11 outer cladding metal screen layer 12 becomes cable core 1;
One layer of semi-conductive buffer water-blocking band 2 is held after stranding;By CCV catenary suspension type continuous vulcanization production line by semiconductive conductor shield
11-2, crosslinked polyetylene insulated layer 11-3 and semi-conductive insulation shield layer 11-4 are three-layer co-extruded, the covered wire completed
Core 11 carries out drying room heat de-airing, improves the electrically and mechanically intensity of insulated wire cores.Metal screen layer 12 is copper strips, aluminum
Band or aluminum alloy strip.
Step 3: make metal sheath 3;The present embodiment uses Corrugated metal aluminium sheath, by argon arc welded tube mill at electricity
Cable cable core longitudinally one layer of aluminium strip high-temperature soldering of cladding becomes pipe, then aluminum pipe is made the ripple of uniformly continuous through embossing instrument
Shape, improves bending property and the mechanical strength of metallic sheath, uniformly coats one layer of asphalt corrosion resistant layer on protective metal shell surface.This
The protective metal shell that step makes is by high pressure gas tightness test, it is ensured that the sealing property of metallic sheath.
Step 4: make sealing coat 4;For preventing wire armoring and protective metal shell electrical contact, extrude polyethylene sheath and make
For sealing coat 9.
Step 5: make tinsel armor 5;The zinc-coated wire of this step employing multiply diameter 3.15mm is stranded to be formed,
The radical of steel wire can carry out selecting design according to cable preamble external diameter.
Step 6: make outer jacket 6;Layer of polyethylene oversheath is extruded, as radially resistance outside tinsel armor 5
The first line of defence of water, and it is coated with a layer polypropylene fiber at pe sheath, rise in cable outermost layer environment under water
To etch-proof effect.
Manufacture a complete cable according to the method for the present embodiment, carry out radially waterproof anti-corrosion test according to national standard
With winding and bending test, test result is satisfied by standard-required.Take the length finished cable sample no less than 3 meters,
Bending will be immersed in Nacl:Mgcl=7:1 except two ends with outer cable entirety after looping, concentration 30g/L, PH scope 7.0~
8.0,40 DEG C ± 1 DEG C simulated seawater of temperature 14 days, soaks and removes all coverings beyond insulation screen after terminating, use
Perusal, the insulation screen outer surface of sample of cable is dried, without any visual steam and water stain vestige.Press JB/T respectively
11167.1-2011 (rated voltage 10kV to 110kV crosslinked polyetylene insulated long length exchange submarine cable and adnexa the
A part: test method and requirement) in the regulation of 8.8.2.1 and 8.8.2.2 carry out, sample of cable does not produce absolutely
Edge, metallic sheath and oversheath destroy and conductor or the phenomenon of armouring permanent deformation.
Seeing Fig. 2, the cable of the present embodiment and the difference of embodiment 1 are to use three-core structure.Three root insulated wire cores 11
And the filling 13 that blocks water is set between semi-conductive buffer water-blocking band 2.At every insulated wire cores 11 outer cladding metal screen layer 12,
Then to carry out many cores stranded for employing dish winch, adds waterproofing rope as the filling 13 that blocks water in stranded intermediate space.
Particular embodiments described above, has been carried out the purpose of the present invention, technical scheme and beneficial effect the most in detail
Illustrate, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention,
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within bright protection domain.
Claims (10)
1. wisdom energy lake, crosslinked polyetylene insulated shallow sea power cable, it is characterised in that: it is followed successively by from the inside to the outside
Cable core (1), semi-conductive buffer water-blocking band (2), metal sheath (3), sealing coat (4), tinsel armor (5)
With outer jacket (6);Described cable core (1) includes at least insulated wire cores (11);Every insulated wire cores (11) is by interior
To being followed successively by outward water-blocking conductor (11-1), semiconductive conductor shield (11-2), crosslinked polyetylene insulated layer (11-3)
With semi-conductive insulation shield layer (11-4);Metal screen layer (12) is set outside described insulated wire cores (11);Described block water
Conductor (11-1) is longitudinally to be coated with outside stranded metal monofilament at water blocking yarn, and hole to fill water-proofing powder.
The wisdom energy the most according to claim 1 lake, crosslinked polyetylene insulated shallow sea power cable, its feature
Be: described insulated wire cores (11) is many, many insulated wire cores (11) and semi-conductive buffer water-blocking band (2) it
Between arrange and block water filling (13).
The wisdom energy the most according to claim 2 lake, crosslinked polyetylene insulated shallow sea power cable, its feature
It is: the structure of described metal sheath (3) is longitudinally to be coated on the outer aluminium-plastic tape of cable core (1) and extrude in plastic-aluminum
The composite construction of the layer of polyethylene sheath outside composite band;Or for being longitudinally coated on cable core (1) corrugated aluminium metal outward
The layer of polyethylene sheath extruded outside the Colophonium of coating or PUR anticorrosive coat and anticorrosive coat outside sheath, metallic aluminium sheath
Composite construction.
The wisdom energy the most according to claim 3 lake, crosslinked polyetylene insulated shallow sea power cable, its feature
Be: the structure of described tinsel armor (5) be nonmagnetic a diameter of 3.15mm or 4.0mm of multiply not
The lay configuration of rust steel wire;Or be a diameter of 3.15mm or 4.0mm of multiply the stranded structure of zinc-coated wire.
The wisdom energy the most according to claim 4 lake, crosslinked polyetylene insulated shallow sea power cable, its feature
It is: the radial direction water resistant polyurea ethylene that structure is internal layer of described outer jacket (6) is answered with the anticorrosion polypropylene fibre of outer layer
Close layer.
6. the wisdom energy manufacture method of lake, crosslinked polyetylene insulated shallow sea power cable, it is characterised in that:
The construction of cable uses as claimed in claim 5;Manufacture method comprises the following steps:
Step one: make water-blocking conductor (11-1);
Step 2: make insulated wire cores (11) stranding;According to single insulated wire cores (11) structure, then covered wire
Core (11) outer cladding metal screen layer (12) becomes cable core (1);According to the structure of many insulated wire cores (11),
Then at every insulated wire cores (11) outer cladding metal screen layer (12), then to carry out many cores stranded for employing dish winch,
In stranded intermediate space interpolation waterproofing rope as the filling (13) that blocks water, after stranding, hold one layer of semi-conductive buffer water-blocking band (2);
Step 3: make metal sheath (3);
Step 4: make sealing coat (4);
Step 5: make tinsel armor (5);
Step 6: make outer jacket (6).
The wisdom energy the most according to claim 6 is with the manufacturer of lake, crosslinked polyetylene insulated shallow sea power cable
Method, it is characterised in that: in described step one, use France's Pourtier type 91 dish frame winch that metal monofilament is carried out circle
Pressing strand system, the interlayer structure in strand system longitudinally wraps into water blocking yarn, and adds water-proofing powder, to the water-blocking conductor completed
(11-1) D.C. resistance and permeable test are carried out.
The wisdom energy the most according to claim 7 is with the manufacturer of lake, crosslinked polyetylene insulated shallow sea power cable
Method, it is characterised in that: in described step 2, by CCV catenary suspension type continuous vulcanization production line by semiconductive conductor shield (11-2),
Crosslinked polyetylene insulated layer (11-3) and semi-conductive insulation shield layer (11-4) are three-layer co-extruded, the covered wire completed
Core (11) carries out drying room heat de-airing.
The wisdom energy the most according to claim 8 is with the manufacturer of lake, crosslinked polyetylene insulated shallow sea power cable
Method, it is characterised in that: in described step 2, metal screen layer (12) is copper strips, aluminium strip or aluminum alloy strip.
The wisdom energy the most according to claim 9 is with the manufacturer of lake, crosslinked polyetylene insulated shallow sea power cable
Method, it is characterised in that: described sealing coat (4) is polyethylene sheath.
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Cited By (8)
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CN107564618A (en) * | 2017-09-30 | 2018-01-09 | 河北华通线缆集团股份有限公司 | A kind of water-proof cable containing graphene |
CN107633917A (en) * | 2017-08-25 | 2018-01-26 | 安徽华能电缆集团有限公司 | A kind of anti-explosion computer and instrument cable |
CN108257716A (en) * | 2018-02-13 | 2018-07-06 | 江苏荣宜电缆有限公司 | A kind of high shielding anti-interference flexible cable |
CN108682496A (en) * | 2018-04-25 | 2018-10-19 | 上海电缆研究所有限公司 | Light environment protection submarine cable |
CN109243709A (en) * | 2018-09-11 | 2019-01-18 | 江苏亨通高压海缆有限公司 | Degassing assembly line for cable |
CN111613390A (en) * | 2020-05-14 | 2020-09-01 | 江苏亨通高压海缆有限公司 | Production method of alternating current-direct current hybrid submarine cable for offshore wind power |
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WO2024001305A1 (en) * | 2022-06-30 | 2024-01-04 | 中天科技海缆股份有限公司 | Dynamic submarine cable and forming method for dynamic submarine cable |
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CN107633917A (en) * | 2017-08-25 | 2018-01-26 | 安徽华能电缆集团有限公司 | A kind of anti-explosion computer and instrument cable |
CN107564618A (en) * | 2017-09-30 | 2018-01-09 | 河北华通线缆集团股份有限公司 | A kind of water-proof cable containing graphene |
CN107564618B (en) * | 2017-09-30 | 2023-09-19 | 河北华通线缆集团股份有限公司 | Waterproof cable containing graphene |
CN108257716A (en) * | 2018-02-13 | 2018-07-06 | 江苏荣宜电缆有限公司 | A kind of high shielding anti-interference flexible cable |
CN108682496A (en) * | 2018-04-25 | 2018-10-19 | 上海电缆研究所有限公司 | Light environment protection submarine cable |
CN109243709A (en) * | 2018-09-11 | 2019-01-18 | 江苏亨通高压海缆有限公司 | Degassing assembly line for cable |
WO2020052201A1 (en) * | 2018-09-11 | 2020-03-19 | 江苏亨通高压海缆有限公司 | Degassing pipeline for cable |
CN111613390A (en) * | 2020-05-14 | 2020-09-01 | 江苏亨通高压海缆有限公司 | Production method of alternating current-direct current hybrid submarine cable for offshore wind power |
CN114068084A (en) * | 2021-11-15 | 2022-02-18 | 中天科技海缆股份有限公司 | Gas-free submarine cable and series synchronous production system and process thereof |
WO2024001305A1 (en) * | 2022-06-30 | 2024-01-04 | 中天科技海缆股份有限公司 | Dynamic submarine cable and forming method for dynamic submarine cable |
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Application publication date: 20161012 |