CN112735651A - Water-resistant double-layer co-extrusion sheath solar photovoltaic cable - Google Patents
Water-resistant double-layer co-extrusion sheath solar photovoltaic cable Download PDFInfo
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- CN112735651A CN112735651A CN202011590082.1A CN202011590082A CN112735651A CN 112735651 A CN112735651 A CN 112735651A CN 202011590082 A CN202011590082 A CN 202011590082A CN 112735651 A CN112735651 A CN 112735651A
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- layer
- photovoltaic cable
- solar photovoltaic
- resistant
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 title claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 241001391944 Commicarpus scandens Species 0.000 claims abstract description 4
- 230000002708 enhancing effect Effects 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 50
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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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
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- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cable production and processing, in particular to a water-resistant double-layer co-extrusion sheath solar photovoltaic cable which comprises an insulating cable core, wherein a reinforcing connecting belt which is used for enhancing the mechanical strength of the solar photovoltaic cable and is not easy to break is wrapped between an outer sheath layer and a radiation-proof layer, the cross section of the reinforcing connecting belt is of an open C-shaped ring structure, and two open ends of the reinforcing connecting belt are provided with oblique cutting ports which can be mutually attached together to form a closed ring for the reinforcing connecting belt. According to the photovoltaic cable, the inner sheath layer, the outer sheath layer, the reinforced connecting belt and the water-resistant wear-resistant layer are formed by double-layer co-extrusion, so that the photovoltaic cable has high mechanical strength and tensile strength besides water resistance, radiation resistance, aging resistance, weather resistance and the like, and cannot be easily damaged or broken when the photovoltaic cable can bear a severe environment.
Description
Technical Field
The invention relates to the technical field of cable production and processing, in particular to a water-resistant double-layer co-extrusion sheath solar photovoltaic cable.
Background
Solar photovoltaic power generation is a clean, environment-friendly, green and safe renewable energy source. At present, the development and utilization of solar energy for power generation become an important strategic decision for sustainable development in many countries of the world. As a key transmission component of a solar photovoltaic power generation system, a photovoltaic cable plays a crucial role in the utilization of solar energy, the photovoltaic cable in the solar photovoltaic system is located outdoors for a long time, the technical performance of the photovoltaic cable is strict, the photovoltaic cable in the current market is not good and uniform, the photovoltaic cable is difficult to adapt to severe environments such as outdoor sun and rain, severe cold, high temperature and the like, and in addition, some birds often fall on the photovoltaic cable and natural wind power and other factors cause the photovoltaic cable to be easily damaged and broken.
Disclosure of Invention
In order to solve the technical problem, the invention provides a water-resistant double-layer co-extrusion sheath solar photovoltaic cable.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a water-resistant double-layer co-extrusion sheath solar photovoltaic cable comprises an insulating cable core, wherein an inner sheath layer, an outer sheath layer, a radiation-proof layer and a water-resistant and wear-resistant layer which are manufactured in a double-layer co-extrusion mode are sequentially wrapped outside the insulating cable core, a reinforcing connecting belt which is used for enhancing the mechanical strength of the solar photovoltaic cable and is not easy to break is wrapped between the outer sheath layer and the radiation-proof layer, the cross section of the reinforcing connecting belt is of an open C-shaped ring structure, and two open ends of the reinforcing connecting belt are provided with beveling ports which can be mutually attached together to form a closed ring with the reinforcing connecting belt;
the utility model discloses a solar photovoltaic cable, including the enhancement connecting band, the inlayer wall of enhancement connecting band just is close to two beveling ports department and is equipped with the draw-in groove of symmetric distribution, be equipped with on the inlayer wall on the radiation protection layer with the card of draw-in groove adaptation protruding, through the adaptation block of card protruding and draw-in groove for two beveling ports are gathered together and then are in the same place each other to the centre, thereby make the enhancement connecting band become closed ring in order to strengthen solar photovoltaic cable water resistance by the split ring.
Furthermore, the insulating cable core comprises a plurality of orderly wires distributed side by side and an insulating layer coated outside the wires, and insulating wear-resistant particles are filled in the insulating layer and between the plurality of wires.
Furthermore, the insulating wear-resistant particles and the insulating layer are made of the same material and are all radiation cross-linked polyolefin materials.
Further, the total thickness of the inner sheath layer and the outer sheath layer is 1.2-1.5 mm, and the thickness ratio of the inner sheath layer to the outer sheath layer is 6: 4.
The invention has the beneficial effects that:
according to the photovoltaic cable, the inner sheath layer, the outer sheath layer, the reinforced connecting belt and the water-resistant wear-resistant layer are formed by double-layer co-extrusion, so that the photovoltaic cable has high mechanical strength and tensile strength besides water resistance, radiation resistance, aging resistance, weather resistance and the like, and cannot be easily damaged or broken when the photovoltaic cable can bear a severe environment.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view at I in FIG. 1;
FIG. 3 is a schematic view of a reinforcing connecting strip according to the present invention;
fig. 4 is a schematic structural view of the radiation protective layer of the present invention.
In the figure: 1. a wire; 2. insulating wear resistant particles; 3. an insulating layer; 4. an inner jacket layer; 5. an outer jacket layer; 6. reinforcing the connecting band; 61. a chamfered port; 62. a card slot; 7. a radiation protective layer; 71. clamping convex; 8. a water-resistant wear-resistant layer.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
As shown in fig. 1 to 4, a water-resistant double-layer co-extrusion sheath solar photovoltaic cable comprises an insulating cable core, wherein an inner sheath layer 4, an outer sheath layer 5, a radiation-proof layer 7 and a water-resistant wear-resistant layer 8 which are manufactured by adopting a double-layer co-extrusion mode are sequentially coated outside the insulating cable core, a reinforcing connecting band 6 which is used for enhancing the mechanical strength of the solar photovoltaic cable and is not easy to break is coated between the outer sheath layer 5 and the radiation-proof layer 7, the cross section of the reinforcing connecting band 6 is of an open C-shaped ring structure, and two open ends of the reinforcing connecting band 6 are provided with a beveling port 61 which can be mutually attached together to form a closed ring with the reinforcing connecting;
the upper wall of the reinforced connecting band 6 is provided with symmetrically distributed clamping grooves 62 near the two oblique cutting ports 61, the inner wall of the radiation-proof layer 7 is provided with clamping protrusions 71 matched with the clamping grooves 62, and the two oblique cutting ports 61 are gathered together towards the middle and then mutually attached together through the matching clamping of the clamping protrusions 71 and the clamping grooves 62, so that the reinforced connecting band 6 is changed into a closed ring from an open ring to enhance the water resistance of the solar photovoltaic cable.
The inner sheath layer 4 and the outer sheath layer 5 adopt a double-layer co-extrusion mode, so that the mechanical strength of the solar photovoltaic cable is increased, the radiation-proof layer 7 is a metal wire layer and is formed by weaving metal wires with the diameter of 0.3-0.5 mm, and the radiation-proof effect is achieved through the shielding effect of metal; the water-resistant and wear-resistant layer 8 is formed by mixing a polyester tire and wear-resistant rubber, wherein the polyester tire has the properties of high strength, high elongation, puncture resistance, light weight, high tensile strength, high water resistance, corrosion resistance, aging resistance and the like, and the wear-resistant rubber has the properties of good wear resistance, high elasticity and ductility, difficulty in aging and the like. As a further improvement of the invention, the insulated cable core comprises a plurality of orderly and side-by-side distributed wires 1 and an insulating layer 3 coated outside the wires 1, and insulating wear-resistant particles 2 are filled in the insulating layer 3 and positioned among the wires 1. Specifically, the seven wires 1 are arranged and distributed orderly and side by side in a distribution mode that one wire is arranged in the middle and the other six wires are distributed circumferentially.
As a further improvement of the invention, the materials of the insulating wear-resistant particles 2 and the insulating layer 3 are the same and are both radiation cross-linked polyolefin materials. Through the double insulation of the insulating wear-resistant particles 2 and the insulating layer 3, the power transmission of the photovoltaic cable can be effectively ensured, wherein the insulating wear-resistant particles 2 also play a role in fixing seven wires 1 and avoiding the contact of the wires 1 with each other.
As a further improvement of the invention, the total thickness of the inner sheath layer 4 and the outer sheath layer 5 is 1.2-1.5 mm, and the thickness ratio of the inner sheath layer 4 to the outer sheath layer 5 is 6: 4.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a water-fast type double-deck crowded sheath solar photovoltaic cable altogether, includes insulating cable core, its characterized in that: the solar photovoltaic cable comprises an insulating cable core and is characterized in that an inner sheath layer (4), an outer sheath layer (5), a radiation-proof layer (7) and a water-resistant wear-resistant layer (8) which are manufactured in a double-layer co-extrusion mode are sequentially coated outside the insulating cable core, a reinforcing connecting band (6) which is used for enhancing the mechanical strength of the solar photovoltaic cable and is not easy to break is coated between the outer sheath layer (5) and the radiation-proof layer (7), the cross section of the reinforcing connecting band (6) is of an open C-shaped ring structure, and two open ends of the reinforcing connecting band (6) are provided with oblique cutting ports (61) which can be mutually attached together to form a closed;
the utility model discloses a solar photovoltaic cable waterproof structure, including strengthen connecting band (6), the inlayer wall of strengthen connecting band (6) just is close to two beveling ports (61) and locates to be equipped with draw-in groove (62) of symmetric distribution, be equipped with protruding (71) of card with draw-in groove (62) adaptation on the inlayer wall on the layer of protecting against radiation (7), through the adaptation block of protruding (71) of card and draw-in groove (62) for two beveling ports (61) are gathered together and then are in the same place each other to the centre, thereby make strengthen connecting band (6) become closed ring in order to strengthen solar photovoltaic cable water resistance.
2. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 1, characterized in that: the insulation cable core comprises a plurality of orderly wires (1) distributed side by side and an insulation layer (3) coated outside the wires (1), and insulation wear-resistant particles (2) are filled in the insulation layer (3) and between the wires (1).
3. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 2, characterized in that: the insulating wear-resistant particles (2) and the insulating layer (3) are made of the same material and are all radiation cross-linked polyolefin materials.
4. The water-resistant double-layer co-extruded sheath solar photovoltaic cable according to claim 1, characterized in that: the total thickness of the inner sheath layer (4) and the outer sheath layer (5) is 1.2-1.5 mm, and the thickness ratio of the inner sheath layer (4) to the outer sheath layer (5) is 6: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590082.1A CN112735651A (en) | 2020-12-29 | 2020-12-29 | Water-resistant double-layer co-extrusion sheath solar photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590082.1A CN112735651A (en) | 2020-12-29 | 2020-12-29 | Water-resistant double-layer co-extrusion sheath solar photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112735651A true CN112735651A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011590082.1A Pending CN112735651A (en) | 2020-12-29 | 2020-12-29 | Water-resistant double-layer co-extrusion sheath solar photovoltaic cable |
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| Country | Link |
|---|---|
| CN (1) | CN112735651A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937522A (en) * | 2022-06-14 | 2022-08-23 | 广东远光电缆实业有限公司 | Water-resistant double-layer co-extrusion sheath solar photovoltaic cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788725U (en) * | 2010-08-20 | 2011-04-06 | 常州市新东方电缆有限公司 | Double-layer co-extruded insulated photovoltaic cable |
| CN203826037U (en) * | 2014-05-15 | 2014-09-10 | 乐清市威尔龙高温线缆有限公司 | Outdoor cable |
| CN206236457U (en) * | 2016-10-31 | 2017-06-09 | 耒阳星宇电线电缆有限公司 | A kind of luminous Compression-resistincable cable under water |
| CN207302671U (en) * | 2017-09-14 | 2018-05-01 | 扬州市金阳光电缆有限公司 | A kind of weather-proof solar photovoltaic cable of high fire-retardance radiation hardness |
| CN210443333U (en) * | 2019-10-09 | 2020-05-01 | 广东金科电缆实业有限公司 | Aluminum core armored cable |
-
2020
- 2020-12-29 CN CN202011590082.1A patent/CN112735651A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201788725U (en) * | 2010-08-20 | 2011-04-06 | 常州市新东方电缆有限公司 | Double-layer co-extruded insulated photovoltaic cable |
| CN203826037U (en) * | 2014-05-15 | 2014-09-10 | 乐清市威尔龙高温线缆有限公司 | Outdoor cable |
| CN206236457U (en) * | 2016-10-31 | 2017-06-09 | 耒阳星宇电线电缆有限公司 | A kind of luminous Compression-resistincable cable under water |
| CN207302671U (en) * | 2017-09-14 | 2018-05-01 | 扬州市金阳光电缆有限公司 | A kind of weather-proof solar photovoltaic cable of high fire-retardance radiation hardness |
| CN210443333U (en) * | 2019-10-09 | 2020-05-01 | 广东金科电缆实业有限公司 | Aluminum core armored cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114937522A (en) * | 2022-06-14 | 2022-08-23 | 广东远光电缆实业有限公司 | Water-resistant double-layer co-extrusion sheath solar photovoltaic cable |
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