CN212161358U - 6-core fireproof insulated power cable of photovoltaic power generation system - Google Patents
6-core fireproof insulated power cable of photovoltaic power generation system Download PDFInfo
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- CN212161358U CN212161358U CN202021033495.5U CN202021033495U CN212161358U CN 212161358 U CN212161358 U CN 212161358U CN 202021033495 U CN202021033495 U CN 202021033495U CN 212161358 U CN212161358 U CN 212161358U
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- 238000010248 power generation Methods 0.000 title claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 36
- 239000010949 copper Substances 0.000 claims abstract description 36
- 238000004804 winding Methods 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 16
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 13
- 238000009941 weaving Methods 0.000 claims abstract description 12
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 229910000077 silane Inorganic materials 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 4
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 4
- 239000004760 aramid Substances 0.000 claims description 10
- 229920003235 aromatic polyamide Polymers 0.000 claims description 10
- 229920001684 low density polyethylene Polymers 0.000 claims description 8
- 239000004702 low-density polyethylene Substances 0.000 claims description 8
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 229920001179 medium density polyethylene Polymers 0.000 claims description 7
- 239000004701 medium-density polyethylene Substances 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 5
- 238000005253 cladding Methods 0.000 abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 5
- 150000002367 halogens Chemical class 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 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 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003063 flame retardant Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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Abstract
The utility model discloses a 6 fire-resistant insulating power cable of photovoltaic power generation system core, twist jointly around a central polypropylene resin medium pipe and constitute the cable core including six insulation core, the outside cladding in proper order of cable core has double-deck polyethylene water-blocking layer, shielding netted conductor layer, insulating anticorrosive coating, AFRP weaving layer and low smoke and zero halogen polyolefin oversheath, insulation core includes the inner conductor and the inner conductor outside cladding in proper order has ethylene propylene diene monomer inner semi-conductive layer, the linear low density polyethylene insulating layer of silane grafting crosslinking, ethylene propylene diene monomer outer semi-conductive layer, copper line shielding winding layer and PTFE around the covering. The cable has better flexibility and bending resistance, excellent waterproof and flame-retardant performance, stable electrical shielding performance, better laying environmental adaptability and ensured safety and reliability of a photovoltaic power generation system.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a 6 core fire-resistant insulating power cable of photovoltaic power generation system.
Background
With the rapid development of the photovoltaic power generation industry of clean energy, the photovoltaic power generation technology is promoted to be improved day by day. Photovoltaic cables are an indispensable component in photovoltaic power generation systems. Photovoltaic cables can be divided into direct current cables and alternating current cables according to a photovoltaic power generation system. Such as series cables between modules, parallel cables between strings and between strings to a combiner box, cables between combiner boxes to an inverter, etc. The outdoor laying is more, and the performance requirements of moisture resistance, insolation resistance, high and low temperature resistance, ultraviolet resistance, chemical corrosion resistance and the like need to be met. The combiner box can adopt four-core cable or six-core cable to the inverter according to actual conditions, the cable still considers the flexural property, dampproofing waterproof characteristic etc. under the prerequisite that can resist adverse weather environment and stand mechanical shock, under the thin footpath lightweight development trend of cable, not only consider that the thin footpath preparation can reduce cost and do benefit to the benefit that mounting process brought, but also need compromise each item performance requirement of photovoltaic cable, and then ensure the safe and reliable operation of photovoltaic power generation system.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough, the technical problem that solve provides a photovoltaic power generation system 6 core fire-resistant insulation power cable, and pliability, flexible resistance performance are better, and waterproof flame retardant property is excellent, and electrical shielding performance is stable, lays environmental suitability better, ensures photovoltaic power generation system's fail safe nature.
The utility model discloses a make above-mentioned technical problem solve through following technical scheme.
6 fire-resistant insulating power cable of photovoltaic power generation system includes that six insulation core twist jointly around a central polypropylene resin medium pipe and constitute the cable core, the outside cladding in proper order of cable core has double-deck polyethylene water blocking layer, shielding mesh conductor layer, insulating anticorrosive coating, AFRP weaving layer and low smoke and zero halogen polyolefin oversheath, the insulation core includes the inner conductor and the inner conductor outside cladding in proper order has interior semi-conducting layer of ethylene propylene diene monomer rubber, silane grafting cross-linking linearity low density polyethylene insulating layer, the outer semi-conducting layer of ethylene propylene diene monomer rubber, copper line shielding winding layer and PTFE around the covering.
Preferably, the PTFE lapping layer is a PTFE resin tape lapping and lapping structure, and the lapping direction is the same as the twisting direction of the cable core.
Preferably, the double-layer polyethylene water-blocking layer is formed by co-extruding an MDPE water-blocking inner layer on the inner side and an LDPE water-blocking outer layer on the outer side, and the thickness ratio of the MDPE water-blocking inner layer to the LDPE water-blocking outer layer is 1: 10-1: 12.
Preferably, the copper wire shielding winding layer is formed by spirally winding inner and outer layers of tinned copper monofilaments in the same direction, the winding distance and the spiral angle of the inner layer of tinned copper monofilaments and the outer layer of tinned copper monofilaments are the same, and the spiral angle is 50-70 degrees.
Preferably, the diameter of the inner layer tinned copper monofilament is smaller than that of the outer layer tinned copper monofilament, the diameter of the inner layer tinned copper monofilament is 0.05mm to 0.12mm, and the diameter of the outer layer tinned copper monofilament is 0.08mm to 0.18 mm.
Preferably, the shielding mesh conductor layer is formed by spirally winding and weaving polyester fiber copper foil filaments and tin-plated copper monofilaments in opposite directions.
Preferably, the AFRP woven layer is formed by weaving an inner aramid twisted yarn and an outer aramid twisted yarn which are spirally wound in opposite directions.
Preferably, the helix angle is 40 to 55 degrees.
Preferably, the diameter of the inner aramid twisted wire is larger than that of the outer aramid twisted wire.
Preferably, the low-smoke halogen-free polyolefin outer sheath is a silane grafted cross-linked high-density polyethylene outer sheath.
The utility model has the advantages that:
1. be equipped with the AFRP weaving layer in outer sheath, have high strength, high modulus, light matter is high temperature resistant, and ageing resistance is better, has effectively strengthened the holistic pliability of power cable and resistant flexure nature, has strengthened underground, aquatic, ditch pipe and tunnel lamp various different adaptability under laying the environment, guarantee photovoltaic power generation system's safety and stability operation.
2. The central polypropylene resin medium pipe is added in the middle of the six insulated wire cores, so that the cable obtains better flexibility, the tensile strength is increased, and the torque force in the twisting and bending process can be effectively reduced, thereby improving the characteristics of bending resistance and bending resistance.
3. The insulating anticorrosive layer can improve the corrosion resistance of the cable, effectively prevent corrosive gas and liquid from corroding the cable, improve the chemical corrosion resistance of the cable, enhance the weather resistance and prolong the service life.
4. Copper line shielding winding layer is inside and outside double-deck tinned copper monofilament syntropy spiral winding and forms, the winding distance and the helix angle degree homogeneous phase of inlayer tinned copper monofilament and outer tinned copper monofilament are the same, can effectively reduce friction between inlayer copper wire and the outer copper wire, difficult emergence copper wire broken string phenomenon improves resistant turning nature and resistant bending property, spiral angle is 50 degrees to 70 degrees, be less than 50 degrees and can increase the copper wire quantity, and the increase in production cost is greater than 70 degrees, then it is difficult for appearing becoming flexible to cause the winding technology degree of difficulty big. The inner layer tinned copper monofilament line diameter is less than the outer layer tinned copper monofilament line diameter, wherein, the inner layer tinned copper monofilament line diameter is 0.05mm to 0.12mm, the outer layer tinned copper monofilament line diameter is 0.08mm to 0.18mm, reduce and weave the gap, realize more easily that weaving density is 90% to 98%, help improving shielding effect, reinforcing anti-noise interference ability, the effectual signal or the noise that restrain leaks to the outside and restrain the interference that comes from the external signal.
5. Adopt double-deck polyethylene water-blocking layer, for MDPE inner layer and LDPE outer double-deck coextrusion molding structure that blocks water, the outer thickness proportion of optimal design, under the operating mode condition that the cable meets with humidity obviously higher than normal, the water-blocking layer can effectually prevent moisture to invade inside, protects power cable's insulating electrical characteristic, increase of service life.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.
In the figure: 1-insulating wire core, 2-central polypropylene resin medium pipe, 3-double-layer polyethylene water-resistant layer, 4-shielding mesh conductor layer, 5-insulating anti-corrosion layer, 6-AFRP braided layer, 7-low smoke zero halogen polyolefin outer sheath, 8-inner conductor, 9-ethylene propylene diene rubber inner semi-conductive layer, 10-silane grafted cross-linked linear low-density polyethylene insulating layer, 11-ethylene propylene diene rubber outer semi-conductive layer, 12-copper wire shielding winding layer and 13-PTFE winding layer.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses photovoltaic power generation system 6 core fire-resistant insulating power cable of embodiment, constitute the cable core including six insulation core 1 around a central polypropylene resin medium pipe 2 transposition jointly. The insulated wire core 1 comprises an inner conductor 8, and an ethylene propylene diene monomer inner semi-conducting layer 9, a silane grafted cross-linked linear low-density polyethylene insulating layer 10, an ethylene propylene diene monomer outer semi-conducting layer 11, a copper wire shielding winding layer 12 and a PTFE (polytetrafluoroethylene) winding layer 13 are sequentially coated outside the inner conductor 8. Specifically, the inner conductor 8 is formed by twisting a plurality of tinned copper monofilaments. In one embodiment, the copper wire shielding winding layer 12 is formed by spirally winding inner and outer double-layer tinned copper monofilaments in the same direction, the winding distance and the helix angle of the inner layer tinned copper monofilament and the outer layer tinned copper monofilament are the same, the helix angle is 50 degrees to 70 degrees, further, the diameter of the inner layer tinned copper monofilament is smaller than that of the outer layer tinned copper monofilament, the diameter of the inner layer tinned copper monofilament is 0.05mm to 0.12mm, and the diameter of the outer layer tinned copper monofilament is 0.08mm to 0.18 mm. In one embodiment, the PTFE lapping layer 13 is a PTFE resin tape lapping structure and has the same lapping direction as the cable core.
The outside of cable core cladding has double-deck polyethylene water-blocking layer 3, shielding netted conductor layer 4, insulating anticorrosive coating 5, AFRP weaving layer 6 and low smoke and zero halogen polyolefin oversheath 7 in proper order. Specifically, the double-layer polyethylene water-blocking layer 3 is formed by co-extruding an MDPE water-blocking inner layer on the inner side and an LDPE water-blocking outer layer on the outer side, and the thickness ratio of the MDPE water-blocking inner layer to the LDPE water-blocking outer layer is 1: 10-1: 12. In one embodiment, the shielding mesh conductor layer 4 is formed by weaving polyester fiber copper foil filaments and tin-plated copper monofilaments in a reverse spiral winding manner. Specifically, the AFRP woven layer 6 is formed by weaving an inner aramid twisted yarn layer and an outer aramid twisted yarn layer in a mutually reverse spiral winding manner, and further, the spiral angle is 40-55 degrees. Furthermore, the diameter of the inner aramid twisted wire is larger than that of the outer aramid twisted wire. In one embodiment, the low smoke zero halogen polyolefin outer sheath 7 is a silane grafted cross-linked high density polyethylene outer sheath.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the claims of the present application belong to the protection scope of the present invention.
Claims (10)
1. Photovoltaic power generation system 6 core fire-resistant insulating power cable, characterized by: the cable comprises six insulating wire cores (1) which are stranded together around a central polypropylene resin medium pipe (2) to form a cable core, wherein the outside of the cable core is sequentially coated with a double-layer polyethylene water-blocking layer (3), a shielding mesh conductor layer (4), an insulating anticorrosive layer (5), an AFRP (atomic fluorescence resonance) woven layer (6) and a low-smoke halogen-free polyolefin outer sheath (7), and each insulating wire core (1) comprises an inner conductor (8) and the outside of the inner conductor (8) is sequentially coated with an ethylene propylene diene monomer inner semi-conducting layer (9), a silane grafted cross-linked linear low-density polyethylene insulating layer (10), an ethylene propylene diene monomer outer semi-conducting layer (11), a copper wire shielding winding layer (12) and a PTFE (PTFE.
2. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the PTFE lapping layer (13) is a PTFE resin tape lapping and lapping structure, and the lapping direction is the same as the twisting direction of the cable core.
3. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the double-layer polyethylene water-blocking layer (3) is formed by co-extruding an MDPE water-blocking inner layer on the inner side and an LDPE water-blocking outer layer on the outer side, and the thickness ratio of the MDPE water-blocking inner layer to the LDPE water-blocking outer layer is 1: 10-1: 12.
4. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the copper wire shielding winding layer (12) is formed by spirally winding an inner tin-plated copper monofilament and an outer tin-plated copper monofilament in the same direction, the winding distance and the spiral angle of the inner tin-plated copper monofilament and the outer tin-plated copper monofilament are the same, and the spiral angle is 50-70 degrees.
5. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 4, wherein: the inner layer tinned copper monofilament line diameter is smaller than the outer layer tinned copper monofilament line diameter, the inner layer tinned copper monofilament line diameter is 0.05mm to 0.12mm, and the outer layer tinned copper monofilament line diameter is 0.08mm to 0.18 mm.
6. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the shielding mesh-shaped conductor layer (4) is formed by spirally winding and weaving polyester fiber copper foil filaments and tin-plated copper monofilaments in opposite directions.
7. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the AFRP weaving layer (6) is formed by weaving an inner aramid fiber twisted wire and an outer aramid fiber twisted wire which are mutually reverse spirally wound.
8. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 7, wherein: the helix angle is 40 to 55 degrees.
9. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 7, wherein: the diameter of the inner aramid twisted wire is larger than that of the outer aramid twisted wire.
10. The photovoltaic power generation system 6-core fire-resistant insulated power cable of claim 1, characterized in that: the low-smoke halogen-free polyolefin outer sheath (7) is a silane grafted cross-linked high-density polyethylene outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033495.5U CN212161358U (en) | 2020-06-08 | 2020-06-08 | 6-core fireproof insulated power cable of photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021033495.5U CN212161358U (en) | 2020-06-08 | 2020-06-08 | 6-core fireproof insulated power cable of photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161358U true CN212161358U (en) | 2020-12-15 |
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ID=73702596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021033495.5U Expired - Fee Related CN212161358U (en) | 2020-06-08 | 2020-06-08 | 6-core fireproof insulated power cable of photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212161358U (en) |
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2020
- 2020-06-08 CN CN202021033495.5U patent/CN212161358U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |