CN205881536U - Photovoltaic of nai high temperature resistant cable - Google Patents
Photovoltaic of nai high temperature resistant cable Download PDFInfo
- Publication number
- CN205881536U CN205881536U CN201620729212.8U CN201620729212U CN205881536U CN 205881536 U CN205881536 U CN 205881536U CN 201620729212 U CN201620729212 U CN 201620729212U CN 205881536 U CN205881536 U CN 205881536U
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- Prior art keywords
- aramid fiber
- fire
- strand
- layer
- photovoltaic
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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 discloses a photovoltaic of nai high temperature resistant cable, including the bunched conductors, the bunched conductors has set gradually pottery vitrification fire - resistant silicone rubber insulating layer and fire -retardant interior sheath outward, and fire -retardant interior sheath periphery from interior to exterior has set gradually aramid fiber outer jacket and fusibility polytetrafluoroethylene layer. This photovoltaic of nai high temperature resistant cable sets up fusibility polytetrafluoroethylene layer through the aramid fiber surrounding layer surface in prior art, utilizes the characteristics that soluble polytetrafluoroethylene layer coefficient of friction is extremely low, surperficial energy level is low, at aramid fiber surface formation water blocking layer, avoids the aramid fiber to use because of the phenomenon that the moisture absorption results in cable tensile strength and bending strength to reduce, the area that more is applicable to air humidity great.
Description
Technical field
This utility model relates to fiber optic cables technical field, is specifically related to a kind of heat resistant and wear resistant photovoltaic cable.
Background technology
Solar grid-connected electricity generation system will be the principal mode of photovoltaic generation from now on, it is contemplated that the ground of solar photovoltaic power plant
Reason environment, needs to be irradiated by strong sunlight for a long time, and the material of outdoor use should be according to ultraviolet, ozone, dramatic temperature change
Depending on chemical erosion situation.Solar cables is a kind of beam crossover link cable, and rated temperature is 120 DEG C, affiliated
Equipment can be resisted extreme climate environment and stand mechanical shock.According under international standard solar cables environment out of doors, it makes
It is 8 times of rubber cable with the life-span, is 32 times of PVC cable.These cables and parts not only have optimal weather resistance, resistance to
Ultraviolet and ozone attack, and larger range of variations in temperature can be born.
CN105575486A discloses a kind of solar photovoltaic cable, and its structure is: tin plating twisted copper conductors outer wrapping by
The insulating barrier of irradiation crosslinking type low-smoke halogen-free flame-retardant polyolefin weatherproof cable material composition, protects for glass fiber tape outside insulating barrier
Layer, is aramid layers outside glass fiber tape sheath.Utilize the wearability of oversheath aramid layers, anti-flammability and heat-resisting quantity, can improve
The tensile strength of cable.But, aramid fiber has the feature of moisture absorption and poor dimensional stability, is not suitable for the ground that air humidity is bigger
District.
Utility model content
The purpose of this utility model is to overcome defect present in prior art, it is provided that a kind of skin-friction coefficient is extremely low
And the heat resistant and wear resistant photovoltaic cable of water repellent.
For realizing above-mentioned technique effect, the technical solution of the utility model is: a kind of heat resistant and wear resistant photovoltaic cable, and it is special
Levy and be, including strand, outside strand, be disposed with fire-resisting ceramic silicone rubber insulating barrier and fire-retardant sheath, described resistance
Combustion sheath periphery is disposed with aramid fiber outer jacket and Meltability polytetrafluorethyletubular layer from the inside to the outside.
In order to improve the radiating efficiency of strand, preferred technical scheme is, aramid fiber outer jacket surface configuration has some
The heat sink strip consistent with strand bearing of trend.Meltability polytetrafluorethyletubular passes through electrostatic painting process, is passed through by plastic powders
High voltage electrostatic equipment charges, and adsorbs equably under the effect of electric field on processed surface of the work, and plastic powders is first
Embedding in the cell body between heat sink strip, after high-temperature baking, plastic grain can be melted into one layer of fine and close protective layer and be attached to workpiece
Surface, and the smooth surface of the Meltability polytetrafluorethyletubular layer formed, shape is regular.
Further preferred technical scheme is, the cross section of heat sink strip is V-arrangement, protects outside the height of heat sink strip no more than aramid fiber
The 1/2 of layer thickness.
In order to optimize insulation effect further, preferred technical scheme is, strand insulate with fire-resisting ceramic silicone rubber
Be provided with Muscovitum belt between Ceng, the mica tape in Muscovitum belt around being located at the surface of strand, wrapped Duplication be 55～
70%。
Advantage of the present utility model and having the beneficial effects that:
This heat resistant and wear resistant photovoltaic cable is by aramid fiber surrounding layer surface configuration meltability polytetrafluoro in the prior art
Pvdf layer, utilizes the feature that solubility polytetrafluoroethylene floor coefficient of friction is extremely low, surface energy is extremely low, is formed on aramid fiber surface and block water
Layer, it is to avoid aramid fiber causes the phenomenon that cable tensile strength and bending strength reduce because of moisture absorption, is more suitable for air humidity bigger
Area use.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model heat resistant and wear resistant photovoltaic cable embodiment 1；
Fig. 2 is the structural representation of this utility model heat resistant and wear resistant photovoltaic cable embodiment 2；
Fig. 3 is the structural representation of this utility model heat resistant and wear resistant photovoltaic cable embodiment 3.
In figure: 1, strand；2, fire-resisting ceramic silicone rubber insulating barrier；3, fire-retardant sheath；4, Muscovitum belt；5, aramid fiber
Outer jacket；6, Meltability polytetrafluorethyletubular layer；7, heat sink strip.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is further described.Hereinafter implement
Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this
Enclose.
Embodiment 1
As it is shown in figure 1, the heat resistant and wear resistant photovoltaic cable of embodiment 1 includes strand 1, it is disposed with outside strand 1
Fire-resisting ceramic silicone rubber insulating barrier 2 and fire-retardant sheath 3, fire-retardant sheath 3 periphery is disposed with outside aramid fiber from the inside to the outside
Sheath 5 and Meltability polytetrafluorethyletubular layer 6.
Embodiment 2
As in figure 2 it is shown, the difference of embodiment 2 and embodiment 1 is, aramid fiber outer jacket 5 surface configuration have some with lead
The heat sink strip 7 that wire harness 1 bearing of trend is consistent.
Concrete, the cross section of heat sink strip 7 is V-arrangement, and the height of heat sink strip 7 is not more than the 1/2 of aramid fiber outer jacket thickness.
Embodiment 3
As it is shown on figure 3, embodiment 3 is based on embodiment 2, difference is, strand 1 and fire-resisting ceramic silicone rubber insulating barrier
Be provided with Muscovitum belt 4 between 2, the mica tape in Muscovitum belt 4 around being located at the surface of strand, wrapped Duplication be 55～
70%。
Further, the cross section of heat sink strip can be also semicircle, trapezoidal etc..
General, the thickness of Meltability polytetrafluorethyletubular layer is the 1/3～1/4 of aramid fiber outer jacket thickness.
Compared with Example 1, rate of heat dispation improves about 5% to embodiment 2.
Muscovitum belt is arranged in fire-resisting ceramic silicone rubber insulating barrier, uses Muscovitum belt as insulating barrier with simple
Fiber optic cables compare, it is also possible to avoid the insulation effect of the mica tape that extends influence of water in cable.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (4)
1. a heat resistant and wear resistant photovoltaic cable, it is characterised in that include strand, is disposed with ceramic resistance to outside strand
Fire silicone rubber insulation layer and fire-retardant sheath, described fire-retardant sheath periphery is disposed with aramid fiber outer jacket and can from the inside to the outside
Fusibleness polytetrafluoroethylene floor.
Heat resistant and wear resistant photovoltaic cable the most according to claim 1, it is characterised in that if aramid fiber outer jacket surface configuration has
The heat sink strip that dry root is consistent with strand bearing of trend.
Heat resistant and wear resistant photovoltaic cable the most according to claim 2, it is characterised in that the cross section of heat sink strip is V-arrangement, dissipates
The height of hot bar is not more than the 1/2 of aramid fiber outer jacket thickness.
Heat resistant and wear resistant photovoltaic cable the most according to claim 1, it is characterised in that strand and ceramic fire-resistant silicon rubber
Being provided with Muscovitum belt between glue insulating barrier, the mica tape in Muscovitum belt is around being located at the surface of strand, and wrapped Duplication is
55～70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620729212.8U CN205881536U (en) | 2016-07-12 | 2016-07-12 | Photovoltaic of nai high temperature resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620729212.8U CN205881536U (en) | 2016-07-12 | 2016-07-12 | Photovoltaic of nai high temperature resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881536U true CN205881536U (en) | 2017-01-11 |
Family
ID=57695572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620729212.8U Active CN205881536U (en) | 2016-07-12 | 2016-07-12 | Photovoltaic of nai high temperature resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881536U (en) |
-
2016
- 2016-07-12 CN CN201620729212.8U patent/CN205881536U/en active Active
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