CN105679393A - Dual-core fire-resistant photovoltaic cable - Google Patents
Dual-core fire-resistant photovoltaic cable Download PDFInfo
- Publication number
- CN105679393A CN105679393A CN201610031190.2A CN201610031190A CN105679393A CN 105679393 A CN105679393 A CN 105679393A CN 201610031190 A CN201610031190 A CN 201610031190A CN 105679393 A CN105679393 A CN 105679393A
- Authority
- CN
- China
- Prior art keywords
- flame retardant
- fire
- sheath
- retardant coating
- periphery
- 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.)
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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
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a dual-core fire-resistant photovoltaic cable. The dual-core fire-resistant photovoltaic cable comprises two conductors, wherein the two conductors are arranged in parallel, an inner fire-resistant layer is wound at the periphery of each conductor, an insulation layer is extruded at the periphery of each inner fire-resistant layer, an outer fire-resistant layer is extruded at the periphery of each insulation layer, a sheath is extruded at the periphery of each outer fire-resistant layer, the two sheaths are extruded at one time to form a whole, a connection rib is formed between the two sheaths, the fire-resistant layers adopt inorganic mineral insulation materials, and the insulation layer and the sheathes adopt cross-linking low smoke halogen free high-flame retardant polyolefin materials with irradiation of 125 DEG C. Compared with a single-wire photovoltaic cable, the cable has the advantages of higher production efficiency and lower cost; the cable has whole appearance and is attractive in appearance; the laying speeds of multiple circuits are increased during cable laying, and the cables are more orderly arranged at the bottom of the installed device; and with a structure that the insulation layers are extruded between the inner fire-resistant layers and the outer fire-resistant layers, the flexibility and fire resistance of the cable are ensured.
Description
Technical field
The present invention relates to a kind of field of photovoltaic technology, particularly relate to a kind of two fire-resistant photovoltaic cable of core.
Background technology
Along with the development and utilization of sun power, photovoltaic generation has become the main approach of exploitation sun power. At present, develop the important strategic decision that sun power has become the multinational Sustainable development in the world, the construction of large solar photo-voltaic power generation station, unlimited business opportunity is brought to photovoltaic cable, as the important transmission assembly of solar photovoltaic generation system, photovoltaic cable plays a part most important in sun power generates electricity.
At present, the photovoltaic cable on market is all that single root connects, and in mounting and installation process, comparison is loaded down with trivial details, operation is many; Positive and negative electrode lays below sun plate, seems in disorder, connection occur mixed connect and go here and there around, affect attractive in appearance; Single root production cycle is long, and efficiency is low, and production cost is higher; Cable is when running into fire, and fire performance is not good, it is easy to open circuit after burning, can not effectively ensure the security of the lives and property of citizen.
Therefore, make a kind of aesthetic in appearance, easy to use and that fire performance is strong photovoltaic cable and become those skilled in the art's technical issues that need to address.
Summary of the invention
The technical problem existed for solving in background technology, the present invention proposes a kind of two fire-resistant photovoltaic cable of core.
The fire-resistant photovoltaic cable of two cores that the present invention proposes, comprising: the first conductor of two parallel settings and the 2nd conductor;
First conductor periphery is surrounded with in first flame retardant coating; In first, flame retardant coating periphery is extruded with the first insulation layer; First insulation layer periphery is surrounded with the first outer flame retardant coating; First outer flame retardant coating periphery is extruded with the first sheath;
2nd conductor periphery is surrounded with flame retardant coating in the 2nd; In 2nd, flame retardant coating periphery is extruded with the 2nd insulation layer; 2nd insulation layer periphery is surrounded with the 2nd outer flame retardant coating; 2nd outer flame retardant coating periphery is extruded with the 2nd sheath;
First sheath and the 2nd sheath is disposable extrudes, and formed between the first sheath and the 2nd sheath and connect muscle, and on any radial section, the thickness connecting muscle is increased progressively to both sides by middle part.
Preferably, the width of connection muscle on any radial section is A, and 0.5mm≤A≤0.7mm.
Preferably, connect muscle comprise the middle portion arranged along its bearing of trend, and be positioned at both sides, centre portion and with integrated first connection section in centre portion and the 2nd connection section, wherein, the thickness in centre portion is equal with the thickness of the first sheath or the 2nd sheath; The thickness of the first connection section and the 2nd connection section is increased progressively to the side away from centre portion by the side near centre portion respectively.
Preferably, the first sheath is identical with the thickness of the 2nd sheath.
Preferably, connect muscle to be all connected by arc transition with between the first sheath and the 2nd sheath.
Preferably, in first flame retardant coating and flame retardant coating in the 2nd to put up rate identical, be B1.
Preferably, the first outer flame retardant coating and the 2nd outer flame retardant coating to put up rate identical, be B2, and B2 < B1.
Preferably, B1 >=50%.
Preferably, B2 >=35%.
Preferably, in flame retardant coating and the 2nd, flame retardant coating all adopts inorganic mineral insulation material to be made in first.
Preferably, the first insulation layer and the 2nd insulation layer all adopt 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials to be made, and the first insulation layer is identical with the thickness of the 2nd insulation layer.
Preferably, the first outer flame retardant coating and the 2nd outer flame retardant coating all adopt inorganic mineral insulation material to be made.
Preferably, the first sheath and the 2nd sheath all adopt 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials to be made.
Preferably, the first conductor all adopt with the 2nd conductor 56 diameters be the zinc-plated copper wire of 0.29mm stranded become.
The fire-resistant photovoltaic cable of two cores in the present invention has following useful effect: the first conductor all adopts the zinc-plated copper wire of 56 0.29mm stranded with the 2nd conductor and becomes, enhance conductivity and the power transmission performance of two fire-resistant photovoltaic cable of core, decrease the loss of electric power in transmitting procedure; First sheath and the 2nd sheath is disposable extrudes simultaneously, higher relative to single line photovoltaic cable production efficiency, cost is lower; The size connecting muscle can make the first sheath and the 2nd sheaths separate easy, the first sheath and the 2nd sheath is not damaged during separation, can conveniently lay again, if it is excessive to connect muscle thickness, first sheath is difficult to be separated when installing with the 2nd sheath, if it is wide to connect muscle, the width of two fire-resistant photovoltaic cable of core can be increased, give to install and lay and make troubles; The profile of the fire-resistant photovoltaic cable of two core is an entirety, effectively adds the tensile strength of cable, in cabling process, accelerates the laying speed of many circuits, and its cross section becomes " ∞ " type, aesthetic in appearance; When being installed to interface end, it is possible to by guarded blade utility knife, connection muscle is cut open an osculum, along osculum, connection muscle is torn one section, then respectively single conductor is connected on corresponding equipment, the arrangement making cable more easily in good order under erecting equipment; The structure that interior flame retardant coating and outer flame retardant coating interlayer are arranged, on the one hand, interior flame retardant coating and outer flame retardant coating can stagger mutually, make the total fraction of coverage of the flame retardant coating of cable up to 90%, 90 minutes normal power supplies can be stopped in 750～800 DEG C of flame, thus ensure that cable has good fire performance when fire, on the other hand, the cable higher relative to individual layer and fraction of coverage, the flexibility that this spaced apart structure has is better, brings convenience to installing and lay.
Accompanying drawing explanation
Fig. 1 is the sectional view of the fire-resistant photovoltaic cable of two cores that the present invention proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the sectional view of the fire-resistant photovoltaic cable of two cores that the present invention proposes.
With reference to Fig. 1, the fire-resistant photovoltaic cable of two cores that the present invention proposes, comprise: the first conductor 1 of two parallel settings and the 2nd conductor 6, first conductor 1 all adopt with the 2nd conductor 6 56 diameters be the zinc-plated copper wire of 0.29mm stranded become, enhance conductivity and the power transmission performance of two fire-resistant photovoltaic cable of core, decrease the loss of electric power in transmitting procedure;
First conductor 1 periphery be surrounded with that inorganic mineral insulation material is made first in flame retardant coating 2, in first, the rate of putting up of flame retardant coating 2 is B1, B1 >=50%; In first, flame retardant coating 2 periphery is extruded with the first insulation layer 3 that 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials are made; It is B2, B2 >=35% that first insulation layer 3 periphery is surrounded with the rate of putting up of the first outer outer flame retardant coating 4 of flame retardant coating 4, first that inorganic mineral insulation material is made, and B2 < B1; First outer flame retardant coating 4 periphery is extruded with the first sheath 5 that 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials are made; The flue gas toxity concentration that 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials produce when burning is low, light transmission height; One layer of first insulation layer 3 has been extruded between flame retardant coating 2 and the first outer flame retardant coating 4 in first, two flame retardant coatings can stagger mutually, make the total fraction of coverage of the flame retardant coating of cable up to 90%, 90 minutes normal power supplies can be stopped in 750～800 DEG C of flame, there is good fire performance, and, the cable higher relative to individual layer and fraction of coverage, the flexibility that this spaced apart structure has is better, brings convenience to installing and lay;
2nd conductor 6 periphery be surrounded with that inorganic mineral insulation material is made the 2nd in flame retardant coating the 7, two flame retardant coating 7 and flame retardant coating in first 2 to put up rate identical; In 2nd, to be extruded with the 2nd insulation layer the 8, two insulation layer 8 that 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials are made identical with the thickness of the first insulation layer 3 in flame retardant coating 7 periphery; 2nd insulation layer 8 periphery is surrounded with the 2nd outer flame retardant coating the 9, two outer flame retardant coating 9 flame retardant coating 4 outer with first that inorganic mineral insulation material is made, and to put up rate identical; It is identical with the thickness of the first sheath 5 that 2nd outer flame retardant coating 9 periphery is extruded with the 2nd sheath the 10, two sheath 10 that 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials are made;
First sheath 5 and the 2nd sheath 10 is disposable extrudes, and formed between the first sheath 5 and the 2nd sheath 10 and connect muscle 11, higher relative to single line photovoltaic cable production efficiency, cost is lower; Connect muscle 11 to be all connected by arc transition with between the first sheath 5 and the 2nd sheath 10, connect muscle 11 and comprise the middle portion arranged along its bearing of trend, and be positioned at both sides, centre portion and with integrated first connection section in centre portion and the 2nd connection section, the thickness of the first connection section and the 2nd connection section is increased progressively to the side away from centre portion by the side near centre portion respectively, wherein, the thickness in centre portion is equal with the thickness of the first sheath 5 or the 2nd sheath 10; And on any radial section, the width connecting muscle 11 is A, 0.5mm≤A≤0.7mm; If it is excessive to connect muscle thickness, it is difficult to be separated when the first sheath is installed with the 2nd sheath, if it is wide to connect muscle, the width of two fire-resistant photovoltaic cable of core can be increased, give to install and lay and make troubles.
The fire-resistant photovoltaic cable of two cores in the present invention is in concrete working process, and the size connecting muscle 11 can make the first sheath 5 be separated easily with the 2nd sheath 10, does not damage the first sheath 5 and the 2nd sheath 10, can conveniently lay again during separation;The profile of cable is an entirety, when cabling, can accelerate the laying speed of many circuits, can improve again the tensile strength of whole cable, and cable cross section becomes " ∞ " type, aesthetic in appearance; When being installed to interface end, by guarded blade utility knife, connection muscle 11 can be cut open an osculum, along osculum, connection muscle 11 is torn one section, then respectively the first conductor 5 and the 2nd conductor 10 are connected on corresponding equipment, the arrangement making cable more easily in good order under erecting equipment.
The above; it is only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; any it is familiar with those skilled in the art in the technical scope that the present invention discloses; technical scheme and invention design thereof according to the present invention are equal to replacement or are changed, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. two fire-resistant photovoltaic cable of core, it is characterised in that, comprising: first conductor (1) of two parallel settings and the 2nd conductor (6);
First conductor (1) periphery is surrounded with in first flame retardant coating (2); In first, flame retardant coating (2) periphery is extruded with the first insulation layer (3); First insulation layer (3) periphery is surrounded with the first outer flame retardant coating (4); First outer flame retardant coating (4) periphery is extruded with the first sheath (5);
2nd conductor (6) periphery is surrounded with in the 2nd flame retardant coating (7); In 2nd, flame retardant coating (7) periphery is extruded with the 2nd insulation layer (8); 2nd insulation layer (8) periphery is surrounded with the 2nd outer flame retardant coating (9); 2nd outer flame retardant coating (9) periphery is extruded with the 2nd sheath (10);
First sheath (5) and the 2nd sheath (10) is disposable extrudes, and formed between the first sheath (5) and the 2nd sheath (10) and connect muscle (11), and on any radial section, the thickness connecting muscle (11) is increased progressively to both sides by middle part.
2. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterised in that, on any radial section, the width connecting muscle (11) is A, and 0.5mm≤A≤0.7mm.
3. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterized in that, connect muscle (11) and comprise the middle portion arranged along its bearing of trend, and be positioned at both sides, centre portion and with integrated first connection section in centre portion and the 2nd connection section, wherein, the thickness in centre portion is equal with the thickness of the first sheath (5) or the 2nd sheath (10); The thickness of the first connection section and the 2nd connection section is increased progressively to the side away from centre portion by the side near centre portion respectively; Preferably, the first sheath (5) is identical with the thickness of the 2nd sheath (10).
4. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterised in that, connect muscle (11) and all it is connected by arc transition with between the first sheath (5) and the 2nd sheath (10).
5. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterised in that, in first flame retardant coating (2) and flame retardant coating (7) in the 2nd to put up rate identical, be B1.
6. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterised in that, the first outer flame retardant coating (4) and the 2nd outer flame retardant coating (9) to put up rate identical, be B2, and B2 < B1.
7. the according to claim 5 pair of fire-resistant photovoltaic cable of core, it is characterised in that, B1 >=50%.
8. the according to claim 6 pair of fire-resistant photovoltaic cable of core, it is characterised in that, B2 >=35%.
9. the according to claim 1 pair of fire-resistant photovoltaic cable of core, it is characterised in that, in first, in flame retardant coating (2) and the 2nd, flame retardant coating (7) all adopts inorganic mineral insulation material to be made;Preferably, first insulation layer (3) and the 2nd insulation layer (8) all adopt 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials to be made, and the first insulation layer (3) is identical with the thickness of the 2nd insulation layer (8); Preferably, the first outer flame retardant coating (4) and the 2nd outer flame retardant coating (9) all adopt inorganic mineral insulation material to be made; Preferably, the first sheath (5) and the 2nd sheath (10) all adopt 125 DEG C of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefine materials to be made.
10. the fire-resistant photovoltaic cable of two cores according to any one of claim 1-9, it is characterised in that, the first conductor (1) all adopt with the 2nd conductor (6) 56 diameters be the zinc-plated copper wire of 0.29mm stranded become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031190.2A CN105679393A (en) | 2016-01-18 | 2016-01-18 | Dual-core fire-resistant photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031190.2A CN105679393A (en) | 2016-01-18 | 2016-01-18 | Dual-core fire-resistant photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105679393A true CN105679393A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610031190.2A Pending CN105679393A (en) | 2016-01-18 | 2016-01-18 | Dual-core fire-resistant photovoltaic cable |
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| CN (1) | CN105679393A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202758648U (en) * | 2012-06-14 | 2013-02-27 | 特变电工股份有限公司 | Direct current cable |
| DE102011121990A1 (en) * | 2011-12-22 | 2013-06-27 | Phoenix Contact Gmbh & Co. Kg | Photovoltaic system and connecting cable for connecting a photovoltaic module |
| CN203415253U (en) * | 2012-06-26 | 2014-01-29 | 常州八益电缆股份有限公司 | Solar photovoltaic cable with parallel line structure |
| CN204178756U (en) * | 2014-09-26 | 2015-02-25 | 广东南缆电缆有限公司 | A kind of twin-core ultraviolet radiation preventing photovoltaic cable |
| CN204596501U (en) * | 2015-05-11 | 2015-08-26 | 安徽龙庵电缆集团有限公司 | The separable photovoltaic cable of PV1-F type twin-core |
| CN204926821U (en) * | 2015-08-29 | 2015-12-30 | 江阴市七星电缆有限公司 | Solar photovoltaic cable |
-
2016
- 2016-01-18 CN CN201610031190.2A patent/CN105679393A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011121990A1 (en) * | 2011-12-22 | 2013-06-27 | Phoenix Contact Gmbh & Co. Kg | Photovoltaic system and connecting cable for connecting a photovoltaic module |
| CN202758648U (en) * | 2012-06-14 | 2013-02-27 | 特变电工股份有限公司 | Direct current cable |
| CN203415253U (en) * | 2012-06-26 | 2014-01-29 | 常州八益电缆股份有限公司 | Solar photovoltaic cable with parallel line structure |
| CN204178756U (en) * | 2014-09-26 | 2015-02-25 | 广东南缆电缆有限公司 | A kind of twin-core ultraviolet radiation preventing photovoltaic cable |
| CN204596501U (en) * | 2015-05-11 | 2015-08-26 | 安徽龙庵电缆集团有限公司 | The separable photovoltaic cable of PV1-F type twin-core |
| CN204926821U (en) * | 2015-08-29 | 2015-12-30 | 江阴市七星电缆有限公司 | Solar photovoltaic cable |
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Application publication date: 20160615 |
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