CN209056300U - A kind of distributed photovoltaic cable - Google Patents
A kind of distributed photovoltaic cable Download PDFInfo
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- CN209056300U CN209056300U CN201920044934.3U CN201920044934U CN209056300U CN 209056300 U CN209056300 U CN 209056300U CN 201920044934 U CN201920044934 U CN 201920044934U CN 209056300 U CN209056300 U CN 209056300U
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- cable
- pvc
- copper
- insulated wire
- nylon
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- 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
Abstract
The utility model relates to a kind of distributed photovoltaic cables, belong to field of cable technology.Technical solution is: copper conductor (1) successively extrudes 105 DEG C of PVC insulating layers (2) and nylon sheath wire (3) outside, copper conductor (1), 105 DEG C of PVC insulating layers (2) and nylon sheath wire (3) form insulated wire cores, insulated wire cores have two, arranged in parallel, 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths (4) are extruded in outside two insulated wire cores.The beneficial effects of the utility model are: reducing the outside diameter of cable, the roundness of conductor is improved, cable cost has been saved, improve the anti ageing property of cable, excellent product performance improves the service life of cable.
Description
Technical field
The utility model relates to a kind of distributed photovoltaic cables, belong to field of cable technology.
Background technique
The power generation of distributed photovoltaic power generation system, also known as distributing or distributed energy supply refer at user scene or close to use
The electric lesser photovoltaic power generation power supply system of situ configuration supports the economic fortune of existing power distribution network to meet the needs of specific user
Row, or meet the requirement in terms of the two simultaneously.The distributed photovoltaic power supply system being most widely used is to build city in build
Object roof is built, direct current is generated by distributed photovoltaic power generation system, switchs to the AC power source of standard, through inverter to use electricity
Device provides electric energy, and can be grid-connected.
Currently, being related to photovoltaic cable standard has TUV Pfg 1169, European Union EN50618, U.S. UL4703, Japan
JCS4717, traditional photovoltaic cable system are the electric energy for exporting solar cell module array, are transmitted by photovoltaic cable
To DC power distribution cabinet, and distributed photovoltaic power supply system needs the direct current of DC power distribution cabinet passing through gird-connected inverter inversion
Building user itself is supplied at alternating current, the transmission cable of this part of electric energy is currently without country or international standard, mostly
It is substituted using common cable, due to needing to connect inverter and AC power distribution cabinet/AC distribution panel, close to building itself, so to cable
The performance requirements such as fire-retardant, low temperature resistant, resistance to daylight, resistance to greasy dirt, waterproof, rat-and-ant proof are higher, traditional cable service life often compared with
It is short.
Utility model content
The utility model aim is to provide a kind of distributed photovoltaic cable, twisted by using composite conductor, reduces electricity
Cable outer diameter improves the roundness of conductor, has saved cable cost, and insulation is guaranteeing insulation electrical using 105 DEG C of PVC insulation
On the basis of performance, improve the temperature resistant grade of cable, extrude heat-resisting nylon sheath, increase the waterproof of insulated wire cores, prevent it is white
Ant performance improves the anti ageing property of cable, and sheath uses 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths, fire-retardant low temperature resistant
Oil resistance is good, and tensile strength and elongation are big, long service life, efficiently solves above-mentioned present in background technique ask
Topic.
The technical solution of the utility model is: a kind of distributed photovoltaic cable, comprising copper conductor, 105 DEG C of PVC insulating layers,
Nylon sheath wire and 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths, the copper conductor successively extrude 105 DEG C of PVC insulating layers and Buddhist nun outside
Imperial sheath, copper conductor, 105 DEG C of PVC insulating layers and nylon sheath wire form insulated wire cores, and insulated wire cores have two, arranged in parallel, and 90
DEG C high fire-retardance low temperature resistant oil proof PVC sheath is extruded in outside two insulated wire cores；Copper conductor is by 13 Φ (diameter) 0.41mm(millis
Rice) copper wire and the twisted composition of 6 Φ 0.30mm copper wires, wherein 7 Φ 0.41mm copper wire concentric strandings are arranged in internal layer, 6 Φ
0.41mm copper wire and 6 Φ 0.30mm copper wires are spaced twisted be arranged in outer layer in concentric manner.
The formula of 105 DEG C of PVC insulating layers is polyvinyl chloride resin 80-100 parts, 40-60 parts, low point of trioctyl trimellitate (TOTM)
Sub- polyethylene wax 0.5-1.5 parts, 5-15 parts of calcium zinc stabilizer and 5-15 parts of antimony oxide, above-mentioned number are parts by weight.
The material of the nylon sheath wire is import Royal DSM nylon sheath wire.
The beneficial effects of the utility model are: design composite conductor is twisted, the outside diameter of cable is reduced, the circle of conductor is improved
Whole degree, has saved cable cost；Insulation on the basis of guaranteeing insulation electrical performance, improves electricity using 105 DEG C of PVC insulation
The temperature resistant grade of cable, insulate tensile strength >=13.8MPA, elongation at break >=150%；PVC insulated wire cores are to extrude heat-resisting nylon
Sheath increases waterproof, the anti-termite performance of insulated wire cores, improves the anti ageing property of cable；It is squeezed using full fashion of extrusion
The peeling force of sheath out, design extrusion die and extrusion pressure, sheath and insulated wire cores adhesion, insulated wire cores and sheath >=
60N；Sheath uses 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths, and finished sheath cable is fire-retardant to pass through FT4 vertical tray
Combustion test, it is low temperature resistant to be subjected to -40 DEG C of low-temperature impact tests and do not crack, after oil resistant can be subjected to 100 DEG C, 4 days, tension
Intensity and elongation are still able to maintain 50% before aging after sunshine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the copper conductor structural schematic diagram of the utility model；
Fig. 3 is that 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths of the utility model squeeze out external mold schematic diagram；
Fig. 4 is the cross-sectional view of Fig. 3；
In figure: 1,105 DEG C of PVC insulating layer 2 of copper conductor, 3,90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths 4 of nylon sheath wire,
Φ 0.41mm copper wire 11, Φ 0.30mm copper wire 12.
Specific embodiment
Technical solutions of the utility model are described in further detail with embodiment with reference to the accompanying drawing.
A kind of distributed photovoltaic cable includes 1,105 DEG C of PVC insulating layer 2 of copper conductor, nylon sheath wire 3 and 90 DEG C high fire-retardance
Low temperature resistant oil proof PVC sheath 4, successively extrudes 105 DEG C of PVC insulating layers 2 and nylon sheath wire 3 outside the copper conductor 1, copper conductor 1,
105 DEG C of PVC insulating layers 2 and nylon sheath wire 3 form insulated wire cores, and insulated wire cores have two, and arranged in parallel, 90 DEG C of high fire-retardances are resistance to low
Warm oil resistant PVC sheath 4 is extruded in outside two insulated wire cores；Copper conductor 1 is by 13 Φ 0.41mm copper wires 11 and 6 Φ 0.30mm
The twisted composition of copper wire 12, wherein 7 11 concentric strandings of Φ 0.41mm copper wire settings are in internal layer, 6 Φ 0.41mm copper wires 11 and 6
Φ 0.30mm copper wire 12 is spaced twisted be arranged in outer layer in concentric manner.
The material of the nylon sheath wire 3 is import Royal DSM nylon sheath wire.
The production of distributed photovoltaic cable: (1) first by 7 diameters be Φ 0.41mm copper wire concentric stranding together, so
6 Φ 0.41mm copper wires and 6 Φ 0.30mm copper wires are stranded in one in interval in concentric manner with same stranded mode afterwards
Play composition stranded conductor；(2) two extruders host is arranged in parallel, is spaced 3-5 meters of arrangements, and two extruders share a set of folding and unfolding
Line apparatus, stranded conductor first pass through First extruder and squeeze out PVC insulating layer, insulating exruded temperature slave neck, fuselage, head temperature
Degree is successively are as follows: an area: 135-140 DEG C, 2nd area: 155-160 DEG C, 3rd area: 160-165 DEG C, 4th area: 165-170 DEG C, 5th area:
170-175 DEG C, 6th area: 175-180 DEG C, 7th area: 175-180 DEG C；(3) the PVC insulating layer after squeezing out is directly entered without cooling
To second nylon extruder, nylon sheath wire extrusion temperature slave neck, fuselage, head temperature are successively are as follows: an area: 210-220 DEG C,
2nd area: 220-230 DEG C, 3rd area: 230-240 DEG C, 4th area: 230-240 DEG C, 5th area: 230-240 DEG C, 6th area: 230-240 DEG C, seven
Area: 230-240 DEG C；(4) sheath is squeezed out using full fashion of extrusion, sheathing uses flat jacket mould, designs cast outer mold structure
Size, in order to guarantee that the peeling force 60-80N of sheath and insulated wire cores, design external mold are 6-8mm at diameter section length.
Before the nylon material enters extrusion machine host, baking material processing (4-5h, 100 DEG C) is carried out in advance, while carrying out warm water
(50 DEG C) and cold water sub-sectional cooling.
Vacuum evacuation device is increased before cross-head when squeezing nylon.
In practical applications, the utility model product specification is by taking 2*12AWG as an example:
Copper conductor is by 13 0.41mm(D) copper conductor and 6 0.30mm(d) copper free wire is twisted, specific embodiment party
Case be first by copper wire concentric stranding that 7 diameters are Φ 0.41mm together, then with same stranded mode by 6 Φ
0.41mm copper wire and 6 Φ 0.30mm copper wires are spaced twist together in concentric manner.
The insulating layer uses UL PVC Insulation Material, which has good mechanical performance, insulation resistance, aging
Energy, oil resistance, sunlight resistance energy etc..Tensile strength >=13.8MPa, elongation at break >=150%；After 136 DEG C of agings in 7 days
75% before tensile strength >=aging, 65% before elongation at break >=aging；After immersion oil aging: 100 DEG C 4 days, tensile strength >=
50% before aging, 50% before elongation at break >=aging；After resistance to daylight aging: 720 hours, before tensile strength >=aging
80%, 80% before elongation at break >=aging；The product insulated wire cores can be subjected to VW-1 testing vertical flammability.
The nylon uses import Royal DSM nylon material, with the no heat-resistant stability of general nylon material, Ke Yitong
The test for crossing the resistance to UV of 720h substantially increases the anti ageing property of cable.
PVC insulation is extruded in stranded conductor surface, and the nylon sheath wire is extruded in PVC insulating surface, PVC insulation and
Nylon squeezes mode using string and squeezes out, i.e. two extruders host is arranged in parallel, is spaced 3-5 meters of arrangements, and two extruders share one
Take-up and pay-off device is covered, stranded conductor first passes through First extruder and squeezes out PVC insulation, insulating exruded temperature slave neck, fuselage, machine
Head temperature is successively are as follows: an area: 135-140 DEG C, 2nd area: 155-160 DEG C, 3rd area: 160-165 DEG C, 4th area: 165-170 DEG C, five
Area: 170-175 DEG C, 6th area: 175-180 DEG C, 7th area: 175-180 DEG C；
PVC insulation after extrusion enters directly into second nylon extruder without cooling, due to Royal DSM nylon material
Belong to polar material, has hydrophilic group because being easy dampness and carrying out baking material in advance before this product nylon material enters extrusion machine host
It handles (4-5h, 100 DEG C), while carrying out warm water (50 DEG C) and cold water sub-sectional cooling, the nylon material after squeezing out is made to absorb water rapidly
Saturation and cooling, are improved the flexibility of nylon material, avoid the problem that being cracked after axis due to bending on nylon core, together
When, which increases vacuum evacuation device when squeezing nylon before cross-head, avoids nylon for expression surface quality
There is bubble in surface, while increasing the stability of nylon extrusion.Nylon extrusion temperature slave neck, fuselage, head temperature are successively
Are as follows: an area: 210-220 DEG C, 2nd area: 220-230 DEG C, 3rd area: 230-240 DEG C, 4th area: 230-240 DEG C, 5th area: 230-240
DEG C, 6th area: 230-240 DEG C, 7th area: 230-240 DEG C；
The restrictive coating uses UL PVC sheath material, which is made from the following raw materials in parts by weight: polyvinyl chloride resin 40-
70 parts, it is 15-25 parts of cold resistant plasticizer, 5-10 parts of oil resistant plasticizer, 20-40 parts of chlorosulfonated polyethylene, 1-10 parts of antioxidant, fire-retardant
10-15 parts of agent, 10-20 parts of vulcanizing agent, 10-20 parts of filler, 5-10 parts of coupling agent.The sheath material has excellent resistance to low
Temperature, oil resistant, flame retardant property can be subjected to -40 DEG C of UL low-temperature impact tests, after immersion oil aging: 100 DEG C 4 days, tensile strength
50% before >=aging, 50% before elongation at break >=aging；After resistance to daylight aging: 720 hours, before tensile strength >=aging
80%, 80% before elongation at break >=aging；Sheath oxygen index (OI) >=32, finished cable can be fired by UL FT4 large size vertical tray
Burn test.
The sheathing uses flat jacket mould, cast outer mold structure size is designed, in order to guarantee sheath and insulated wire cores
Peeling force 60-80N, design external mold at diameter section length be 6-8mm.
This fire-retardant distributed photovoltaic cable of low temperature resistant oil proof, copper conductor are twisted using composite conductor, reduce electricity
Cable outer diameter improves the roundness of conductor, has saved cable cost；105 DEG C of PVC insulating layers 2 and nylon shield are extruded outside copper conductor
Set 3, improves the anti ageing property of cable；Two insulated wire cores are arranged in parallel, and 90 DEG C are extruded outside insulated wire cores arranged in parallel
High fire-retardance low temperature resistant oil proof PVC sheath 4, excellent product performance improve the service life of cable.
Claims (2)
1. a kind of distributed photovoltaic cable, it is characterised in that: include copper conductor (1), 105 DEG C of PVC insulating layers (2), nylon sheath wires
(3) and 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths (4), the copper conductor (1) successively extrude 105 DEG C of PVC insulating layers (2) outside
With nylon sheath wire (3), copper conductor (1), 105 DEG C of PVC insulating layers (2) and nylon sheath wire (3) form insulated wire cores, and insulated wire cores have
Two, arranged in parallel, 90 DEG C of high fire-retardance low temperature resistant oil proof PVC sheaths (4) are extruded in outside two insulated wire cores；Copper conductor (1)
It is twisted and is formed by 13 Φ 0.41mm copper wires (11) and 6 Φ 0.30mm copper wires (12), wherein 7 Φ 0.41mm copper wires (11) are same
The twisted setting of the heart is spaced is twisted in concentric manner in internal layer, 6 Φ 0.41mm copper wires (11) and 6 Φ 0.30mm copper wires (12)
It is arranged in outer layer.
2. a kind of distributed photovoltaic cable according to claim 1, it is characterised in that: the material of the nylon sheath wire (3)
For Royal DSM nylon sheath wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044934.3U CN209056300U (en) | 2019-01-11 | 2019-01-11 | A kind of distributed photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044934.3U CN209056300U (en) | 2019-01-11 | 2019-01-11 | A kind of distributed photovoltaic cable |
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| Publication Number | Publication Date |
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| CN209056300U true CN209056300U (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920044934.3U Active CN209056300U (en) | 2019-01-11 | 2019-01-11 | A kind of distributed photovoltaic cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509578A (en) * | 2019-01-11 | 2019-03-22 | 河北华通线缆集团股份有限公司 | A kind of distributed photovoltaic cable and production method |
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2019
- 2019-01-11 CN CN201920044934.3U patent/CN209056300U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509578A (en) * | 2019-01-11 | 2019-03-22 | 河北华通线缆集团股份有限公司 | A kind of distributed photovoltaic cable and production method |
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