CN203812608U - Photovoltaic cable - Google Patents
Photovoltaic cable Download PDFInfo
- Publication number
- CN203812608U CN203812608U CN201320892641.3U CN201320892641U CN203812608U CN 203812608 U CN203812608 U CN 203812608U CN 201320892641 U CN201320892641 U CN 201320892641U CN 203812608 U CN203812608 U CN 203812608U
- Authority
- CN
- China
- Prior art keywords
- conductor
- photovoltaic cable
- cable according
- conductors
- conductor portion
- 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.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims abstract description 109
- 239000000463 material Substances 0.000 claims abstract description 30
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 21
- 229920002635 polyurethane Polymers 0.000 claims abstract description 19
- 239000004814 polyurethane Substances 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 15
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 150000002367 halogens Chemical class 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000032683 aging Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- 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 utility model discloses a photovoltaic cable. The photovoltaic cable comprises a conductor part and an isolating layer wrapping on the outer side of the conductor part. At least one insulating layer and at least one outer sheath are sequentially arranged on the outer side of the isolating layer in a coating way. The insulating layer and the outer sheath are modified thermoplastic elastomer layers or modified polyurethane layers. By adopting the insulating layer and the outer sheath made of modified thermoplastic elastomer materials or modified polyurethane materials, the photovoltaic cable achieves dual protection effects and has a temperature resistance performance ranging from minus 40 DEG C to 125 DEG C. The photovoltaic cable with great anti-ozone and ultraviolet resistant performance has lead-free halogen-free and flame-retardant performance. The smog release amount is very low. The service lifetime of the cable can be over 25 years. Furthermore, the photovoltaic cable with excellent mechanical strength has good bending and stretching performance.
Description
Technical field
The utility model relates to cable technology field, more particularly, relates to the photovoltaic cable that a kind of solar power generation is used.
Background technology
Along with the enhancing of mankind's environmental consciousness, also there is huge variation in world energy sources structure, by fossil energy system to take regenerative resource as basis sustainable new energy resources system change.By the various Renewable Energy Resources amounts in the world and China, solar energy is topmost energy resources, so solar power generation should be the main force that extensive generating will be provided future, is the direction of extensive development.
Most of solar energy enterprise is all implementing photovoltaic generation pattern, and photovoltaic generation is one of the fastest enterprise of amplification in the world.And it is also very wide by the market prospects of photovoltaic cable as the auxiliary products solar power generation of photovoltaic generation.
Photovoltaic cable is exposed under sunlight often, and solar energy system usually can be used under severe environmental conditions, as high temperature and ultraviolet radiation.In part area, during fine day, will cause the scene temperature of solar energy system up to 100 ℃, so the high temperature resistant and anti-ultraviolet property of photovoltaic cable has been proposed to higher requirement.While using under the severe rugged environment conditions such as existing photovoltaic cable is exposed to the sun at high temperature, solar radiation and corrosion, the frangible and cable insulation of cable cover(ing) easily decomposes, and is even short-circuited, thereby affects the use safety of whole photovoltaic system.
Utility model content
The technical problems to be solved in the utility model is,, cable cover(ing) poor for the above-mentioned photovoltaic cable heat resistance of prior art and the labile defect of insulating barrier, provide a kind of high temperature resistant and good photovoltaic cable of anti-ultraviolet property.
The utility model solves the technical scheme that its technical problem adopts: construct a kind of photovoltaic cable, comprise conductor portion and wrapped separator outside described conductor portion, described separator is coated with at least one layer insulating and one deck oversheath at least outward successively, and described insulating barrier and oversheath are modified thermoplastic elastomer layer or modified polyurethane layer.
In photovoltaic cable described in the utility model, described conductor portion comprises many conductors, and many described conductor twistings form described conductor portion.
In photovoltaic cable described in the utility model, the direction of lay of many described conductors be " Z " to.
In photovoltaic cable described in the utility model, described conductor portion comprises and is positioned at RC the first conductor of described conductor portion and is uniformly distributed and is wound on a plurality of the second conductors that are positioned at RC described the first conductor surrounding.
In photovoltaic cable described in the utility model, described the second conductor is 6, and 6 described the second conductors are uniformly distributed and are wound on that to be positioned at RC described the first conductor peripheral.
In photovoltaic cable described in the utility model, the twisting pitch that is wound on the second conductor that is positioned at RC the first conductor periphery is less than 10 times of stranded external diameter, the twisting pitch that is positioned at RC described the first conductor be the second conductor twisting pitch 0.98-0.995 doubly.
In photovoltaic cable described in the utility model, the many tin-coated copper filament tow strands that described in each, conductor adopts diameter to be less than 0.41mm form.
In photovoltaic cable described in the utility model, described in each, conductor is formed by 28 tin-coated copper filament tow strands.
In photovoltaic cable described in the utility model, the material of described separator is low-smoke non-halogen flame-retardant macromolecular material.
Implement photovoltaic cable of the present utility model, there is following beneficial effect: adopt insulating barrier and the oversheath by modified thermoplastic elastomer material or modified polyurethane material, made, play double protection, its heat resistance is between-40 ℃-125 ℃; Anti-ozone and anti-ultraviolet property are strong, and have unleaded, Halogen, fire-retardant performance, and smog burst size is extremely low, reaches useful life more than 25 years; And this photovoltaic cable had both had good mechanical strength, aspect bending, stretching, there is good performance.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the cutaway view of the photovoltaic cable that provides of the utility model preferred embodiment.
Embodiment
In order to solve, the photovoltaic cable heat resistance of prior art is poor, cable cover(ing) and the labile defect of insulating barrier, the utility model adopts and makes described insulating barrier and oversheath by modified thermoplastic elastomer material or modified polyurethane material, and it can be in use under severe environmental conditions, oil resistant and resistance to chemical attack; And anti-ozone and anti-ultraviolet property are strong, and have unleaded, Halogen, fire-retardant performance, smog burst size is extremely low; With this kind of material modified insulating barrier of making and oversheath, can pass through the ageing test of 5000 hours, under violent variations in temperature and chemical erosion condition, be difficult for occurring to decompose and fragmentation the useful life of having improved photovoltaic cable.
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.Should be appreciated that the embodiment of describing in this place is only for explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the photovoltaic cable that the utility model preferred embodiment provides, comprise conductor portion 1, separator 2, at least one layer insulating 3 and one deck oversheath 4 at least, and conductor portion 1, separator 2, insulating barrier 3 and oversheath 4 set gradually from inside to outside, be that separator 2 is wrapped in the outside of conductor portion 1, separator 2 outer coated at least one layer insulating 3 and at least one deck oversheath 4 successively again.
Conductor portion 1 comprises many conductors 11, and 11 twistings of this many conductors form conductor portion 1, and the direction of lay of many conductors 11 be " Z " to; Therefore conductor portion 1 is by being bundled together many conductors 11 and many conductors 11 being carried out twisted together with respect to conductor portion 1 Zhou center particularly, and many conductors 11 are wound around to form conductor portion 1 spirally mutually.
Conductor portion 1 comprises and is positioned at RC the first conductor of conductor portion 1 and is uniformly distributed and is wound on a plurality of the second conductors that are positioned at RC the first conductor surrounding, it is the center that wherein conductor 11 in many conductors 11 is positioned at conductor portion 1, other conductor 11 is uniformly distributed and is wound on and is positioned at RC conductor 11 peripheries, be that many conductors 11 are roughly circumferencial direction arrangement, and then carry out the described conductor portion 1 of stranded formation.The twisting pitch that is wound on the second conductor that is positioned at RC the first conductor periphery is less than 10 times of stranded external diameter, and the twisting pitch that is positioned at RC the first conductor be the second conductor twisting pitch 0.98-0.995 doubly.Except RC the first conductor, the twisting pitch of other the second conductor is all less than 10 times of stranded external diameter of conductor portion 1, and the twisting pitch that is positioned at RC the first conductor be the second conductor 11 twisting pitch 0.98-0.995 doubly; The twisting pitch that is positioned at RC the first conductor is less than the twisting pitch of the second conductor that is positioned at its periphery, this is during due to many conductor 11 twistings, being positioned at RC the first conductor itself does not occur stranded, but be positioned at the second conductor twisting of its periphery, guaranteeing to adopt this lay under the stressed uniform prerequisite of conductor portion 1.
As shown in Figure 1, in the present embodiment, conductor portion 1 comprises 7 conductors 11, and these 7 conductors 11 are circle, size equates.I.e. the first conductor of conductor 11(wherein) be positioned at the center of conductor portion 1,6 remaining conductor 11(i.e. the second conductor) be wound on equably the periphery that is positioned at RC conductor 11, thereby form the conductor portion 1 that is roughly circumferential, adopt the shape of cross section of the conductor portion 1 that 7 conductor 11 twistings make to approach full circle, Stability Analysis of Structures and every conductor 11 stressed evenly; And making conductor 11 surface-brightenings, the pitch of moulding even, conductor 11 external diameter roundings, even, without jumping silk, burr, fracture of wire, drawing-down phenomenon.The quantity that is appreciated that conductor 11 is not limited to 7, in other embodiments, and designed, designed as required.
Each conductor 11(of the present utility model comprises the first conductor and the second conductor) all by many tin-coated copper filament tow strands, formed, and the diameter of the tin-coated copper monofilament adopting is less than 0.41mm, percentage elongation is high.The quantity of the tin-coated copper monofilament that the little conductor 11 of making same external diameter of filament diameter is used is large, and this can effectively dispersed suffered external force; The high explanation of monofilament percentage elongation copper wire is soft, ductility is strong, and bend resistance ability is strong.In the present embodiment, each conductor 11 is that the tin-coated copper filament tow strand that is less than 0.41mm by 28 diameters forms, and conductor 11 has circular cross-section.
Separator 2 is coated on conductor portion 1 outside, and wrappedly form conductor portion 1 is outer by low-smoke non-halogen flame-retardant macromolecular material is overlapping, and the 16%-24% that the overlapping degree of separator 2 is its width, low-smoke non-halogen flame-retardant macromolecular material has the characteristic of high flame retardant, during high, the passive burning of intensity, be fuming few, wrappedly like this can make its largeizationr of effect, useful life is also longer.
Insulating barrier 3 is coated on separator 2 outsides, and oversheath 4 is further coated on again the outside of insulating barrier 3, thereby is formed on the photovoltaic cable of the outer extruded insulation layer 3 successively of separator 2 and oversheath 4.In the utility model, insulating barrier 3 and oversheath 4 are all at least one deck, and the insulating barrier 3 that is coated on separator 2 outsides is not limited to one deck, can be for more than two-layer and two-layer, and tight adhesion between multilayer dielectric layer 2; The oversheath 4 that is coated on insulating barrier 3 outsides is also not limited to one deck, also can be two-layer and two-layer more than, at this, do not limit.Insulating barrier 3 and oversheath 4 are modified thermoplastic elastomer layer or modified polyurethane layer, be that insulating barrier 3 is modified thermoplastic elastomer layer or modified polyurethane layer, oversheath 4 is also modified thermoplastic elastomer layer or modified polyurethane layer, adopt modified thermoplastic elastomer layer or modified polyurethane layer as insulating barrier 3 and the oversheath 4 of cable, its thermal characteristic, mechanical property and chemical characteristic, make it for ultraviolet ray, ozone corrosion and the large temperature difference, there is good tolerance, the resistance to environment capacity of photovoltaic cable is strengthened, improved useful life.
Modified thermoplastic elastomer layer is to be made by modified thermoplastic elastomer material, modified polyurethane layer is to be made by modified polyurethane material, and this modified thermoplastic elastomer material or modified polyurethane material are that to take corresponding thermoplastic elastomer (TPE) or polyurethane be major ingredient, and have added the mixed system of some auxiliary material and formed.Modified thermoplastic elastomer material comprises thermoplastic elastomer (TPE) 90-110 part, white carbon 6-10 part, fire retardant 2-5 part, high temperature oil 3-8 part by mass fraction and without lead stabilizer 4-8 part; Modified polyurethane material comprises polyurethane 90-110 part, white carbon 6-10 part, fire retardant 2-5 part, high temperature oil 3-8 part and unleaded stabilizer 4-8 part by mass fraction.Be modified thermoplastic elastomer material with in modified polyurethane material except major ingredient is different, other auxiliary material are identical, high temperature oil is trioctyl trimellitate (TOTM), unleaded stabilizer is calcium zinc stabilizer.Wherein, calcium zinc stabilizer has goodish thermal stability, photostability and the transparency, and not containing noxious substances such as lead salts; Trioctyl trimellitate (TOTM) is a kind of environment-friendly plasticizer, and speedup is effective, and has good fast light, heat-resisting, ageing-resistant performance; White carbon is mainly used to protectiving ultraviolet, in order to avoid sheath material is killed and wounded by ultraviolet ray and causes aging; Fire retardant is preferably aluminium hydroxide or magnesium hydroxide, and is nanoscale or micron order, has excellent flame retardant effect.Be appreciated that in other embodiments, high temperature oil, fire retardant and unleaded stabilizer also can adopt other material, and this is not construed as limiting.
Adopt the modified thermoplastic elastomer material of above proportioning or insulating barrier 3 and the oversheath 4 that modified polyurethane material is made photovoltaic cable, its heat resistance, can be in use under severe environmental conditions, oil resistant and resistance to chemical attack between-40 ℃-125 ℃; And anti-ozone and anti-ultraviolet property are strong, and have unleaded, Halogen, fire-retardant performance, smog burst size is extremely low; With this kind of material modified insulating barrier of making 3 and oversheath 4, can pass through the ageing test of 5000 hours, under violent variations in temperature and chemical erosion condition, be difficult for occurring to decompose and fragmentation the useful life of having improved photovoltaic cable.
Photovoltaic cable of the present utility model, adopts insulating barrier 3 and the oversheath 4 by modified thermoplastic elastomer material or modified polyurethane material, made, plays double protection, and its heat resistance is between-40 ℃-125 ℃; Anti-ozone and anti-ultraviolet property are strong, and have unleaded, Halogen, fire-retardant performance, and smog burst size is extremely low; And this photovoltaic cable has good mechanical strength, aspect bending, stretching, there is good performance; This photovoltaic cable can be used for connecting solar panel, storage battery or other current collection unit as the wiring system of photovoltaic module and inverter, is exposed to the sun, reach 25 years the useful life under the severe rugged environment condition such as solar radiation and corrosion at high temperature.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (9)
1. a photovoltaic cable, it is characterized in that, comprise conductor portion (1) and wrapped separator (2) outside described conductor portion (1), described separator (2) is outer is coated with at least one layer insulating (3) and one deck oversheath (4) at least successively, and described insulating barrier (3) and oversheath (4) are modified thermoplastic elastomer layer or modified polyurethane layer.
2. photovoltaic cable according to claim 1, is characterized in that, described conductor portion (1) comprises many conductors (11), and many described conductors (11) twisting forms described conductor portion (1).
3. photovoltaic cable according to claim 2, is characterized in that, the direction of lay of many described conductors (11) be " Z " to.
4. photovoltaic cable according to claim 2, is characterized in that, described conductor portion (1) comprises and is positioned at RC the first conductor of described conductor portion (1) and is uniformly distributed and is wound on a plurality of the second conductors that are positioned at RC described the first conductor surrounding.
5. photovoltaic cable according to claim 4, is characterized in that, described the second conductor is 6, and 6 described the second conductors are uniformly distributed and are wound on that to be positioned at RC described the first conductor peripheral.
6. photovoltaic cable according to claim 4, it is characterized in that, the twisting pitch that is wound on the second conductor that is positioned at RC the first conductor periphery is less than 10 times of stranded external diameter, the twisting pitch that is positioned at RC described the first conductor be the second conductor twisting pitch 0.98-0.995 doubly.
7. photovoltaic cable according to claim 2, is characterized in that, the many tin-coated copper filament tow strands that conductor described in each (11) adopts diameter to be less than 0.41mm form.
8. photovoltaic cable according to claim 7, is characterized in that, conductor described in each (11) is formed by 28 tin-coated copper filament tow strands.
9. photovoltaic cable according to claim 1, is characterized in that, the material of described separator (2) is low-smoke non-halogen flame-retardant macromolecular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892641.3U CN203812608U (en) | 2013-12-31 | 2013-12-31 | Photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892641.3U CN203812608U (en) | 2013-12-31 | 2013-12-31 | Photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812608U true CN203812608U (en) | 2014-09-03 |
Family
ID=51451330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892641.3U Expired - Fee Related CN203812608U (en) | 2013-12-31 | 2013-12-31 | Photovoltaic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751957A (en) * | 2013-12-31 | 2015-07-01 | 深圳市联嘉祥科技股份有限公司 | Photovoltaic cable and preparation method thereof |
| CN114746959A (en) * | 2019-12-06 | 2022-07-12 | 住友电气工业株式会社 | Multi-core cable |
-
2013
- 2013-12-31 CN CN201320892641.3U patent/CN203812608U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751957A (en) * | 2013-12-31 | 2015-07-01 | 深圳市联嘉祥科技股份有限公司 | Photovoltaic cable and preparation method thereof |
| CN104751957B (en) * | 2013-12-31 | 2017-02-01 | 深圳市联嘉祥科技股份有限公司 | Photovoltaic cable and preparation method thereof |
| CN114746959A (en) * | 2019-12-06 | 2022-07-12 | 住友电气工业株式会社 | Multi-core cable |
| CN114746959B (en) * | 2019-12-06 | 2024-05-28 | 住友电气工业株式会社 | Multi-core cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |