CN204288865U - Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables - Google Patents
Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables Download PDFInfo
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- CN204288865U CN204288865U CN201420696362.4U CN201420696362U CN204288865U CN 204288865 U CN204288865 U CN 204288865U CN 201420696362 U CN201420696362 U CN 201420696362U CN 204288865 U CN204288865 U CN 204288865U
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- conductor
- aluminium alloy
- cable
- halogen
- oversheath
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 53
- 238000004132 cross linking Methods 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 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 6
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 229920000098 polyolefin Polymers 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 230000032683 aging Effects 0.000 abstract description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, comprise 8000 serial electrician's level aluminum alloy materials, structure is the aluminium alloy conductor (1) between the 2 class conductors and 5 class conductors of GB/T3956; The insulating material extruding 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefins outside conductor (1) forms insulating barrier (2), and two insulated wire cores are arranged in parallel, and carry out cross-linking radiation to insulating barrier; Then extrude 125 DEG C of polyolefinic sheath materials of cross-linking radiation environmental protection high flame retardant and form oversheath (3), carry out cross-linking radiation to oversheath (3), dumbbell shaped flat cable made by cable.Adopt the utility model, conductor has excellent pliable and tough and extension property, decay resistance and creep-resistant property, cable is high temperature resistant, low temperature resistant, wet-heat resisting, acid and alkali-resistance, resistance to ozone, resistance to purple day light aging and halogen-free flame-proof environmental protection, performance cost performance is high.
Description
Technical field
The utility model relates to a kind of distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, belongs to technical field of electric wires and cables.
Background technology
In current China photovoltaic system, cable used all adopts the PV-cable (cable for photovoltaic module) of TUV Technology Co., Ltd. standard 2pfg1169/08, and conductor is 5 class tin-coated copper cored structures.Due to China's copper shortage of resources, price is high, and therefore photovoltaic system cable cost is higher.And China than more rich be bauxite resource, but the creep resistant of common electrical aluminium and extension property poor, cause the poor stability in cable running, so the power cable making conductor wire core with aluminium in China is less.
Along with the aluminum alloy materials of 8000 series is produced in batches in China, 8000 series alloys are adopted to become a kind of possibility as conductor.The conductor adopting 8000 series alloys to make power cable early has precedent, and such as, in north america such as the U.S., the supply line of 90% all adopts 8000 series alloys to make the conductor of power cable, and through long-time running and detection validation, its performance safety is reliable.But the aluminum alloy materials of 8000 series is applied to photovoltaic system, is especially in the distributed photovoltaic system of current domestic extensive development, is not still achieved.This is because: (1), for the aluminium alloy conductor in photovoltaic system, not only needs electric conductivity to reach the requirement of electrician's aluminium, also requires softness, flexible; (2) aluminium alloy from pole stock be drawn into 5 class conductor monofilament wire diameters comparatively difficulty, cost is too high; (3) because the construction of cable is flat twin cable, if irradiation processing adopts the method identical with ordinary copper core photovoltaic cable, namely an irradiation completes, and insulation property cannot meet product design requirement.
summary of the invention:
For overcoming the defect of prior art, the utility model provides a kind of distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, is applied in distributed photovoltaic power generation system the DC line be discharged between inverter of confluxing.
The utility model adopts following technical scheme:
1, a distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, comprising: aluminium alloy conductor, insulating barrier and oversheath.The outer extruded insulation layer of conductor, form insulated wire cores, extrude oversheath after two insulated wire cores parallel arranged, the construction of cable is twin-core dumb-bell shape cable.
2, aluminium alloy conductor adopts 8000 series alloys, and its structure is (such as when cross-sectional area of conductor is 35mm between the 2 class conductors of GB/T3956
2, its conductor structure adopts 7,2.60mm single line by 1+6 arrangement stranded) and 5 class conductors (such as when cross-sectional area of conductor is 35mm
2, its conductor structure adopts 276,0.4mm single line, first adopts 23 to carry out bundle and is twisted into 12 strands, more stranded with the arrangement of 3+9 by 12 strands) between, be 35mm as worked as cross-sectional area of conductor
2its conductor structure: we have employed 19,1.56 mm single line, stranded and press and form by the regular stranded mode of 1+6+12, so both solve aluminium alloy and be drawn into 5 class conductor monofilament wire diameters comparatively difficulty (aluminum or aluminum alloy conductor only has 1 class or 2 class conductor structures among GB/T3956), problem that cost is too high from pole stock, can go again to meet the soft and flexible requirement of cable as far as possible; After stranded, 280 DEG C ~ 320 DEG C, the integrally annealed process of 2h are carried out to conductor, the percentage elongation of conductor single line is made to control between 25% ~ 30%, aluminium alloy conductor through this process not only can improve conductance, ensure that its conductor resistance reaches the requirement of electrician's aluminium, conductor can also be made more soft and flexible.
3, insulating barrier adopts the insulating material of 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefins to extrude to form, and this insulating barrier has excellent electrical insulation capability, high temperature resistant (125 DEG C), resistance to low temperature, acid-proof alkaline, wet-hot aging performance, weather-resistant property and low-smoke non-halogen flame-retardant performance.
4, oversheath adopts 125 DEG C of polyolefinic sheath materials of cross-linking radiation environmental protection high flame retardant to extrude to form, and oversheath has excellent high temperature resistant (125 DEG C), resistance to low temperature, acid-proof alkaline, wet-hot aging performance, weather-resistant property, resistance to and environmental protection flame retardant performance.
Extrude front two insulated wire cores of oversheath without the need to twisting, but adopt parallel arranged when extruding sheath, have 1 ~ 2mm long between two core oversheaths, the band that 0.5 ~ 1mm is thick is connected, and sheath entirety is dumbbell shaped.
5, two steps are divided into the irradiation processing of cable.First at the outer extruded insulation layer of conductor, and adopt electron accelerator to carry out cross-linking radiation to insulating barrier, then outside two insulated wire cores, extrude oversheath, then adopt electron accelerator to carry out cross-linking radiation to oversheath.The control of the degree of cross linking: be as the criterion with hot elongation test value, this cable insulation and the extension of oversheath heat control respectively between 50 ~ 80% and 30 ~ 50%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model cable.
1 conductor, 2 insulating barriers, 3 oversheaths.
Embodiment
Below by way of concrete execution mode, and the utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 1, distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, comprise cable aluminium alloy conductor (1), the outer extruded insulation layer (2) of conductor (1), form insulated wire cores, extrude oversheath (3) after two insulated wire cores parallel arranged, make flat cable, two core oversheaths (3) are slightly connected.In the present embodiment, conductor (1) cross section is 35mm
2.
Conductor (1) adopts 8000 series alloys, and conductor structure can adopt such as 19, and 1.56mm single line forms by 1+6+12 normally ordering is stranded.Insulating barrier (2) adopts the insulating material of 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefins to extrude and forms, and oversheath (3) adopts 125 DEG C of polyolefinic sheath materials of cross-linking radiation environmental protection high flame retardant to extrude and forms.
Twice is divided into the irradiation processing of cable, first forms insulated wire cores at the outer extruded insulation layer (2) of conductor, and cross-linking radiation is carried out to insulating barrier (2), then outside insulating barrier (2), extrude oversheath (3).Extrude oversheath (3) front, two insulated wire cores without the need to twisting, but adopt parallel arranged when extruding oversheath (3), oversheath is made dumbbell shaped, have 1 ~ 2mm long between two core oversheaths, the band that 0.5 ~ 1mm is thick is connected, and finally carries out cross-linking radiation to oversheath (3).
The technical performance index of the utility model cable:
2.1 DC rated voltages: 1.8/3kV.
2.2 cables the highest long-term permission working temperature: 125 DEG C, the short time allows to reach: 250 DEG C.
2.3 conductor resistances meet the regulation of aluminium conductor in 3956 20 DEG C time.
2.4 manufacture test voltage: 6500V/5min.
2.5 insulation resistances: be not less than 1000M Ω/km 20 DEG C time.
2.6 acid and alkali-resistance solution trials: tensile strength change≤± 30%, elongation at break >=100%.
2.7 low-temperature tests: temperature-40 DEG C, carry out after the cooling of time 16h impacting and bend test, cable surface does not ftracture.
2.8 finished product ozone resistance tests: through 72h ozone resistance test, cable surface is without cracking phenomena.
2.9 finished product day light aging test: after 720h day light aging test, cable surface free from flaw.
2.10 without smoke performance: light transmittance >=60%
2.11 content of halogen is tested
2.11.1 PH and conductance: pH value >=4.3, conductivity≤10 μ S/mm;
2.11.2 Cl and Br content: HCL≤0.5%; HBr≤0.5%;
2.11.3 F content :≤0.1%.
2.12 testing vertical flammabilities: the testing vertical flammability specified by GB/T 18380.12-2008.
2.13 insulation, sheath material mechanical performance:
Insulation tensile strength>=6.5N/mm before aging
2, elongation at break>=125%, sheath tensile strength>=8.0N/mm
2, elongation at break>=125%.
After (150 ± 2) DEG C, 7 × 24h are aging, insulation and sheath aging front and back tensile strength change≤-30%, insulation and sheath aging front and back elongation at break rate of change≤-30%.
The hot elongation test of 2.14 insulation and sheath
The median of insulation and sheath percentage elongation should be not more than 100%.
2.15 the thermal life
Carry out according to IEC 60216-1, IEC60216-2 Arrhenius curve, temperature index is 120 DEG C.Time 5000h.Insulation and sheath reserved elongation at break: >=50%.Carry out bend test under room temperature afterwards.Coupon diameter is 2 times of the outside diameter of cable, and after test, jacket surface does not have eyesight visible crack.Useful life: 25 years.
Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables provided by the utility model, has following technique effect:
(1) conductor after processing, current capacity and aluminium core are suitable, are 61% of copper conductor, creep-resistant property and extension property good, close to copper, and be corrosion-resistantly better than copper with compression joint performance.And aluminum-alloy conductor material cost is about 20% of copper conductor material cost, construction investment cost can reduce by 30%.Therefore cost performance is far above existing copper core list core photovoltaic cable.
(2) flexibility of cable and bending property splendid, design and user's requirement of distributed photovoltaic system cable can be met.
(3) have low cigarette, Halogen and fire-retardant characteristic, the secondary disaster of cable under Fire Conditions greatly reduces, and can not cause negative effect to environmental protection, belongs to environmental protection class cable.High temperature resistant, low temperature resistant, wet-heat resisting, acid and alkali-resistance, resistance to ozone, resistance to purple day light aging, reach more than 25 years useful life.
(4) light, the cable of cable weight replaces original two single-core cables, makes dumbbell shaped again, and twin-core is easily separated, installs more convenient.
The above, be only better possible embodiments of the present utility model, be not limited to interest field of the present utility model, the equivalent structure change that all utilization the utility model specifications and accompanying drawing content are done, be all contained within interest field of the present utility model.
Claims (1)
1. a distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables, comprise the aluminium alloy conductor (1) of cable, the outer extruded insulation layer (2) of aluminium alloy conductor (1) forms insulated wire cores, extrude the dumbbell shaped flat cable that oversheath (3) is made after two insulated wire cores parallel arranged, it is characterized in that:
Described aluminium alloy conductor (1) adopts the aluminum alloy materials of 8000 series, and conductor structure between 2 class conductors and 5 class conductors, and adopts regular stranded and core integrally annealed process to form, and conductor is soft, flexible;
Described insulating barrier (2) is the insulating material extruding 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefins on conductor (1), then carries out cross-linking radiation through electron accelerator; Described oversheath (3) first extrudes 125 DEG C of polyolefinic sheath materials of cross-linking radiation environmental protection high flame retardant, then process through cross-linking radiation; Extrude front two insulated wire cores of oversheath (3) without the need to twisting, but adopt parallel arranged when extruding sheath, two core sheaths are slightly connected, and sheath entirety is made for dumbbell shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696362.4U CN204288865U (en) | 2014-11-20 | 2014-11-20 | Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696362.4U CN204288865U (en) | 2014-11-20 | 2014-11-20 | Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables |
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| Publication Number | Publication Date |
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| CN204288865U true CN204288865U (en) | 2015-04-22 |
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| CN201420696362.4U Active CN204288865U (en) | 2014-11-20 | 2014-11-20 | Distributed photovoltaic system aluminium alloy halogen-free environment-friendly type direct current cables |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376906A (en) * | 2014-11-20 | 2015-02-25 | 江苏双登电力科技有限公司 | Aluminum alloy halogen-free environmentally-friendly direct current cable for distributed photovoltaic system |
| CN105913964A (en) * | 2016-06-24 | 2016-08-31 | 安徽宜德电子有限公司 | Data communication cable with power line |
-
2014
- 2014-11-20 CN CN201420696362.4U patent/CN204288865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376906A (en) * | 2014-11-20 | 2015-02-25 | 江苏双登电力科技有限公司 | Aluminum alloy halogen-free environmentally-friendly direct current cable for distributed photovoltaic system |
| CN105913964A (en) * | 2016-06-24 | 2016-08-31 | 安徽宜德电子有限公司 | Data communication cable with power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.999, Shuangdeng Avenue, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Shuangdeng Cable Co.,Ltd. Address before: Jiangyan District of Jiangsu city in Taizhou province 225526 Liang Xu two Dengke Park No. 1 Patentee before: JIANGSU SHUANGDENG POWER TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Aluminum alloy halogen free environmental protection DC cable for distributed photovoltaic system Effective date of registration: 20210204 Granted publication date: 20150422 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Shuangdeng Cable Co.,Ltd. Registration number: Y2021980001009 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220818 Granted publication date: 20150422 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Shuangdeng Cable Co.,Ltd. Registration number: Y2021980001009 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Aluminum alloy halogen-free environment-friendly DC cable for distributed photovoltaic system Effective date of registration: 20220825 Granted publication date: 20150422 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Shuangdeng Cable Co.,Ltd. Registration number: Y2022320000490 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231221 Granted publication date: 20150422 Pledgee: Jiangyan Jiangsu rural commercial bank Limited by Share Ltd. Pledgor: Shuangdeng Cable Co.,Ltd. Registration number: Y2022320000490 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |