CN216487448U - Irradiation cross-linking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable - Google Patents
Irradiation cross-linking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable Download PDFInfo
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- CN216487448U CN216487448U CN202123001355.7U CN202123001355U CN216487448U CN 216487448 U CN216487448 U CN 216487448U CN 202123001355 U CN202123001355 U CN 202123001355U CN 216487448 U CN216487448 U CN 216487448U
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Abstract
The utility model discloses an irradiation crosslinking low-smoke high-flame-retardant twin-core fireproof photovoltaic cable which comprises a sheath and a core body, wherein the sheath is positioned outside the core body and comprises a first aging-resistant layer, a flame-retardant layer, a second aging-resistant layer, an isolation layer and a high-temperature-resistant layer, the first aging-resistant layer is nitrile rubber, the flame-retardant layer is flame-retardant silicone rubber, the second aging-resistant layer is ethylene propylene diene monomer, the isolation layer is a polyvinyl chloride insulating tape, the high-temperature-resistant layer comprises a chlorohydrin rubber layer and an acrylate rubber layer, the chlorohydrin rubber layer is positioned outside the acrylate rubber layer, and the thicknesses of the acrylate rubber layer and the chlorohydrin rubber layer are equal. According to the utility model, the first aging resistant layer, the flame-retardant layer, the second aging resistant layer, the chlorohydrin rubber layer and the acrylate rubber layer are matched with each other, so that the problems that the existing irradiation crosslinking low-smoke high-flame-retardant twin-core fireproof photovoltaic cable is poor in high-temperature resistance and is easily influenced by high temperature to cause line aging in a long-time use process are solved.
Description
Technical Field
The utility model relates to the technical field of photovoltaic cables, in particular to an irradiation cross-linked low-smoke high-flame-retardant dual-core fireproof photovoltaic cable.
Background
The characteristics of the photovoltaic cable are determined by the special insulating material and the special sheath material of the cable, which are called cross-linked PE, and after the cable is irradiated by an irradiation accelerator, the molecular structure of the cable material can be changed, so that the performance of the cable in one aspect is provided. Mechanical load resistance in fact, during installation and maintenance, the cables can be routed on sharp edges of the roof structure, while the cables must withstand pressure, bending, tension, cross tensile loads and strong impacts. If cable sheathing intensity is not enough, then cable insulation will receive serious damage to influence the life of whole cable, perhaps lead to the appearance of short circuit, conflagration and personnel injury danger scheduling problem, but present irradiation crosslinking low smoke high fire-retardant twin-core fire-resistant photovoltaic cable high temperature resistance is not good, receives high temperature in long-time use easily and influences and lead to the circuit ageing, for this reason, we provide a irradiation crosslinking low smoke high fire-retardant twin-core fire-resistant photovoltaic cable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an irradiation crosslinking low-smoke high-flame-retardant twin-core fireproof photovoltaic cable which has the advantage of good high-temperature resistance effect and solves the problems that the existing irradiation crosslinking low-smoke high-flame-retardant twin-core fireproof photovoltaic cable is poor in high-temperature resistance and is easily influenced by high temperature in the long-time use process to cause line aging.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire-resistant photovoltaic cable of low smoke high fire-retardant twin-core of irradiation crosslinking, includes crust and core, the crust is located the outside of core, the crust includes first ageing resistant layer, fire-retardant layer, second ageing resistant layer, isolation layer and high temperature resistant layer, first ageing resistant layer is butadiene acrylonitrile rubber, fire-retardant layer is fire-retardant silicon rubber, second ageing resistant layer is ethylene propylene diene monomer rubber, the isolation layer is the polyvinyl chloride insulating strip, high temperature resistant layer includes chlorohydrin rubber layer and acrylate rubber layer.
Preferably, the chlorohydrin rubber layer is located outside the acrylate rubber layer, and the acrylate rubber layer and the chlorohydrin rubber layer have equal thickness.
Preferably, the first aging-resistant layer is positioned outside the flame-retardant layer, and the flame-retardant layer is positioned outside the second aging-resistant layer.
Preferably, the second aging-resistant layer is positioned outside the isolation layer, and the isolation layer is positioned outside the high-temperature-resistant layer.
Preferably, the first aging-resistant layer, the flame-retardant layer, the second aging-resistant layer and the isolation layer have the same thickness, and the thickness of the first aging-resistant layer is two thirds of the thickness of the high-temperature-resistant layer.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the cable has good aging resistance through the first aging-resistant layer, the cable can be prevented from aging due to the influence of external environment, the service life of the cable can be prolonged, the flame-retardant layer can play a role in flame retardance and fire prevention, the cable is prevented from burning on fire, the aging resistance of the cable can be further improved through the second aging-resistant layer, the cable can have good high temperature resistance through the chlorohydrin rubber layer and the acrylate rubber layer, the cable can be prevented from aging due to the influence of high temperature, the service life of the cable can be further prolonged, and the problems that the existing irradiation crosslinking low-smoke high-flame-retardant double-core fireproof photovoltaic cable is poor in high temperature resistance and is easy to suffer from high temperature influence in the long-time use process to cause line aging are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;
FIG. 3 is a schematic structural diagram of a refractory layer according to the present invention.
In the figure: 1. a skin; 2. a core body; 3. a first aging-resistant layer; 4. a flame retardant layer; 5. a second aging-resistant layer; 6. an isolation layer; 7. a high temperature resistant layer; 701. a chlorohydrin rubber layer; 702. an acrylate rubber layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an irradiation cross-linking low-smoke high-flame-retardant dual-core fire-resistant photovoltaic cable comprises a sheath 1 and a core 2, wherein the sheath 1 is located outside the core 2, the sheath 1 comprises a first aging-resistant layer 3, a flame-retardant layer 4, a second aging-resistant layer 5, an isolation layer 6 and a high-temperature-resistant layer 7, the first aging-resistant layer 3 is nitrile rubber, the flame-retardant layer 4 is flame-retardant silicone rubber, the second aging-resistant layer 5 is ethylene propylene diene rubber, the isolation layer 6 is a polyvinyl chloride insulating tape, the high-temperature-resistant layer 7 comprises a chlorohydrin rubber layer 701 and an acrylate rubber layer 702, the chlorohydrin rubber layer 701 is located outside the acrylate rubber layer 702, the thicknesses of the acrylate rubber layer 702 and the chlorohydrin rubber layer 701 are equal, the first aging-resistant layer 3 is located outside the flame-retardant layer 4, the flame-retardant layer 4 is located outside the second aging-resistant layer 5, the second aging-resistant layer 5 is located outside the isolation layer 6, the isolation layer 6 is located outside the high-temperature-resistant layer 7, the thicknesses of the first aging-resistant layer 3, the flame-retardant layer 4, the second aging-resistant layer 5 and the isolation layer 6 are equal, the thickness of the first aging-resistant layer 3 is two thirds of that of the high-temperature-resistant layer 7, the cable can have good aging resistance through the first aging-resistant layer 3, the aging of the cable due to the influence of external environment can be avoided, the service life of the cable can be prolonged, the flame-retardant layer 4 can play a role in flame retardance and fire prevention to prevent the cable from being ignited and burnt, the second aging-resistant layer 5 can further improve the aging resistance of the cable, the chlorohydrin rubber layer 701 and the acrylate rubber layer 702 can be used for enabling the cable to have good high-temperature resistance, the cable can be prevented from being aged due to the influence of high temperature, the service life of the cable can be further prolonged, and the problem that the existing irradiation crosslinking high-low-smoke flame-retardant dual-core photovoltaic cable has poor high-temperature resistance is solved, the circuit is easily affected by high temperature in the long-time use process to cause the problem of circuit aging.
During the use, through first ageing-resistant layer 3, can make the cable have good ageing resistance, can avoid the cable to receive external environment influence and age, can improve the life of cable, utilize fire-retardant layer 4, can play fire-retardant fire prevention's effect, avoid the cable to fire burning, utilize second ageing-resistant layer 5, can further improve the ageing resistance of cable, utilize chlorohydrin rubber layer 701 and acrylate rubber layer 702, can make the cable have good high temperature resistance, can avoid the cable to receive high temperature influence and age, can further improve the life of cable, it is not good to have solved present irradiation crosslinking low smoke high fire-retardant double-core fire-resistant photovoltaic cable high temperature resistance, receive high temperature influence easily in long-time use and lead to the ageing problem of circuit.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an irradiation crosslinking low smoke high fire-retardant twin-core fire-resistant photovoltaic cable, includes crust (1) and core (2), its characterized in that: the outer skin (1) is located the outside of core (2), outer skin (1) is including first ageing-resistant layer (3), fire-retardant layer (4), second ageing-resistant layer (5), isolation layer (6) and high temperature resistant layer (7), first ageing-resistant layer (3) are nitrile rubber, fire-retardant layer (4) are fire-retardant silicon rubber, second ageing-resistant layer (5) are ethylene propylene diene monomer, isolation layer (6) are the polyvinyl chloride insulating tape, high temperature resistant layer (7) include chlorohydrin rubber layer (701) and acrylate rubber layer (702).
2. The irradiation crosslinking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable according to claim 1, characterized in that: the chlorohydrin rubber layer (701) is positioned outside the acrylate rubber layer (702), and the thicknesses of the acrylate rubber layer (702) and the chlorohydrin rubber layer (701) are equal.
3. The irradiation crosslinking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable according to claim 1, characterized in that: the first aging resistant layer (3) is positioned outside the flame retardant layer (4), and the flame retardant layer (4) is positioned outside the second aging resistant layer (5).
4. The irradiation crosslinking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable according to claim 1, characterized in that: the second aging-resistant layer (5) is positioned outside the isolation layer (6), and the isolation layer (6) is positioned outside the high-temperature-resistant layer (7).
5. The irradiation crosslinking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable according to claim 1, characterized in that: the thickness of the first aging-resistant layer (3), the flame-retardant layer (4), the second aging-resistant layer (5) and the isolation layer (6) is equal, and the thickness of the first aging-resistant layer (3) is two thirds of that of the high-temperature-resistant layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001355.7U CN216487448U (en) | 2021-12-02 | 2021-12-02 | Irradiation cross-linking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123001355.7U CN216487448U (en) | 2021-12-02 | 2021-12-02 | Irradiation cross-linking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable |
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| Publication Number | Publication Date |
|---|---|
| CN216487448U true CN216487448U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123001355.7U Active CN216487448U (en) | 2021-12-02 | 2021-12-02 | Irradiation cross-linking low-smoke high-flame-retardant twin-core fire-resistant photovoltaic cable |
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2021
- 2021-12-02 CN CN202123001355.7U patent/CN216487448U/en active Active
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