CN214336433U - Low-smoke halogen-free flame-retardant photovoltaic cable - Google Patents
Low-smoke halogen-free flame-retardant photovoltaic cable Download PDFInfo
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- CN214336433U CN214336433U CN202120404722.9U CN202120404722U CN214336433U CN 214336433 U CN214336433 U CN 214336433U CN 202120404722 U CN202120404722 U CN 202120404722U CN 214336433 U CN214336433 U CN 214336433U
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Abstract
The utility model discloses a low-smoke halogen-free flame-retardant photovoltaic cable, which comprises cable cores connected with each other through connecting ribs; the cable core comprises two groups of insulation transmission cable cores which are arranged in parallel, and a detection cable core or a control cable core; the transmission cable core comprises a transmission cable core consisting of a plurality of groups of tinned soft copper conductors which are twisted with each other, an irradiation crosslinking insulating layer coated on the outer side of the transmission cable core and an irradiation crosslinking sheath in which the irradiation crosslinking insulating layer is arranged; and a filling layer is also arranged at the gap part between the transmission cable core and the detection cable core or between the transmission cable core and the control cable core, and between the reinforcing ribs and the cable belting layer. The utility model discloses a photovoltaic cable has excellent high low temperature resistance performance, can normally work under ambient temperature at-40 ~90 ℃ of condition, and the highest long-term allowable operating temperature reaches 125 ℃, and resistant ozone, corrosion-resistant, halogen-free are fire-retardant simultaneously, connect through the outer splice bar of sheath, and separable, the while is at-40 ~90 ℃ of condition relapse flexion fracture.
Description
Technical Field
The utility model relates to a fire-retardant photovoltaic cable of low smoke and zero halogen.
Background
The solar photovoltaic power generation is a clean, environment-friendly and safe renewable energy source, the establishment of a large-scale solar photovoltaic power station simultaneously gives the development of the speed of a photovoltaic cable, and the photovoltaic cable plays a vital role in the photovoltaic power generation as a key transmission component in a photovoltaic power generation system.
Present photovoltaic cable is mostly single core structure, and different single cores are unsettled separation in solar panel below, scatter after the installation, are difficult to arrange in order the setting, and the person distinguishes positive negative pole very easily, causes the unnecessary accident easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low smoke and zero halogen flame retardant photovoltaic cable in order to solve above-mentioned problem.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: a low-smoke halogen-free flame-retardant photovoltaic cable comprises cable cores which are mutually connected through connecting ribs; the cable core comprises two groups of insulation transmission cable cores which are arranged in parallel, and a detection cable core or a control cable core; the transmission cable core comprises a transmission cable core consisting of a plurality of groups of tinned soft copper conductors which are twisted with each other, an irradiation crosslinking insulating layer coated on the outer side of the transmission cable core and an irradiation crosslinking sheath in which the irradiation crosslinking insulating layer is arranged; the detection cable core comprises a detection cable core consisting of a plurality of groups of copper conductors which are twisted with each other, a metal shielding layer coated outside the detection cable core and a polyethylene insulating layer internally extruded with the metal shielding layer; the control cable core comprises a control cable core consisting of a plurality of groups of copper conductors which are twisted with each other, a belting layer coated on the outer side of the control cable core and a polyethylene insulating layer internally extruded with the belting layer; a reinforcing rib is further arranged between the transmission cable core and the detection cable core or the control cable core, and the reinforcing rib is an expanded graphite reinforced composite core; the cable comprises a cable core, a cable wrapping tape layer, a cable metal shielding layer and a cable metal shielding layer, wherein the cable wrapping tape layer is wrapped on the outer side of the cable core; a cable armor layer is arranged on the outer side of the cable metal shielding layer; a polyethylene insulating sheath is arranged outside the cable armor layer; and filling layers are arranged in the gap parts among the transmission cable core, the reinforcing ribs and the cable belting layer.
Furthermore, the irradiation crosslinking sheath is an irradiation crosslinking polyolefin insulating material, and the irradiation crosslinking insulating layer and the irradiation crosslinking sheath are coated together by talcum powder to avoid adhesion.
Particularly, the cable core comprises two groups of insulation transmission cable cores and a detection cable core which are arranged in parallel, the two groups of insulation transmission cable cores are connected through a connecting rib, and the detection cable core is connected above the connecting rib; the cable cross-section sets up to semi-circular, and semi-circular bottom is levelly and smoothly easily to be placed, sets up two sets of strengthening ribs between two sets of transmission cable cores and the detection cable core altogether.
Particularly, the cable core comprises two groups of insulation transmission cable cores, a detection cable core and a control wire core which are arranged in parallel, the two groups of insulation transmission cable cores are connected through a connecting rib, the detection cable core is connected above the connecting rib, and the control wire core is connected below the connecting rib; four groups of reinforcing ribs are arranged between the two groups of transmission cable cores and the detection cable cores and between the two groups of transmission cable cores and the control cable cores.
Furthermore, the reinforcing ribs are arranged between the transmission cable core and the detection cable core or the control wire core in a segmented mode, and the length of each section of reinforcing rib is twice the diameter of the cross section of the cable.
Furthermore, the connecting ribs are thick at two sides and thin in the middle, and the thickness of the thick parts of the connecting ribs is equal to that of the irradiation crosslinking sheath.
To sum up the utility model discloses following beneficial effect has: the utility model discloses a photovoltaic cable has excellent high low temperature resistance performance, can normally work under ambient temperature at-40 ~90 ℃ of condition, and the highest long-term allowable operating temperature reaches 125 ℃, and resistant ozone, corrosion-resistant, halogen-free are fire-retardant simultaneously, connect through the outer splice bar of sheath, and separable, the while is at-40 ~90 ℃ of condition relapse flexion fracture.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
Referring to fig. 1 and 2, a low-smoke halogen-free flame-retardant photovoltaic cable includes cable cores connected with each other by a connecting rib 1; the cable core comprises two groups of insulation transmission cable cores 2 which are arranged in parallel, and a detection cable core 3 or a control cable core 4; the transmission cable core 2 comprises a transmission cable core 2-1 consisting of a plurality of groups of tinned soft copper conductors which are twisted with each other, an irradiation crosslinking insulating layer 2-2 coated on the outer side of the transmission cable core 2-1 and an irradiation crosslinking sheath 2-3 with the irradiation crosslinking insulating layer 2-2 arranged inside; the detection cable core 3 comprises a detection wire core 3-1 consisting of a plurality of groups of mutually twisted copper conductors, a metal shielding layer 3-2 coated outside the detection wire core 3-1 and a polyethylene insulating layer 3-3 internally extruded with the metal shielding layer 3-2; the control cable core 4 comprises a control cable core 4-1 consisting of a plurality of groups of copper conductors which are twisted with each other, a belting layer 4-2 coated outside the control cable core 4-1 and a polyethylene insulating layer 4-3 internally extruded with the belting layer 4-2; a reinforcing rib 5 is arranged between the transmission cable core 2 and the detection cable core 3 or the control cable core 4, and the reinforcing rib 5 is an expanded graphite reinforced composite core; a cable wrapping tape layer 6 is coated on the outer side of the cable core, and a cable metal shielding layer 7 made of bare round copper wires or tinned copper wires is woven on the outer side of the cable wrapping tape layer 6; a cable armor layer 8 is arranged outside the cable metal shielding layer 7; a polyethylene insulating sheath 9 is arranged on the outer side of the cable armor layer 8; the gap part among the transmission cable core, the reinforcing ribs 5 and the cable wrapping layer 6 is also provided with a filling layer 10.
The irradiation crosslinking sheath 2-3 is an irradiation crosslinking polyolefin insulating material, and the irradiation crosslinking insulating layer 2-2 and the irradiation crosslinking sheath 2-3 are coated together by talcum powder to avoid adhesion.
The utility model discloses an embodiment: the cable core comprises two groups of insulation transmission cable cores 2 and detection cable cores 3 which are arranged in parallel, the two groups of insulation transmission cable cores 2 are connected through a connecting rib 1, and the detection cable cores 3 are connected above the connecting rib 1; the cable cross-section sets up to semi-circular, and semi-circular bottom is levelly and smoothly easily to be placed, sets up two sets of strengthening ribs 5 between two sets of transmission cable cores and the detection cable core altogether.
The utility model discloses another kind of embodiment: the cable core comprises two groups of insulation transmission cable cores 2, a detection cable core 3 and a control wire core 4 which are arranged in parallel, the two groups of insulation transmission cable cores 2 are connected through a connecting rib 1, the detection cable core 3 is connected above the connecting rib 1, and the control wire core 4 is connected below the connecting rib 1; four groups of reinforcing ribs are arranged between the two groups of transmission cable cores 2, the detection cable cores 3 and the control wire core 4.
The reinforcing ribs 5 are arranged between the transmission cable core 2 and the detection cable core 3 or the control wire core 4 in sections, and the length of each section of reinforcing rib 5 is twice of the diameter of the cross section of the cable.
The connecting rib 1 is set to be thick at two sides and thin in the middle, and the thickness of the thick part of the connecting rib 1 is equal to that of the irradiation crosslinking sheaths 2-3.
The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.
Claims (6)
1. A low smoke zero halogen flame retardant photovoltaic cable is characterized in that: the cable comprises cable cores which are mutually connected through connecting ribs; the cable core comprises two groups of insulation transmission cable cores which are arranged in parallel, and a detection cable core or a control cable core; the transmission cable core comprises a transmission cable core consisting of a plurality of groups of tinned soft copper conductors which are twisted with each other, an irradiation crosslinking insulating layer coated on the outer side of the transmission cable core and an irradiation crosslinking sheath in which the irradiation crosslinking insulating layer is arranged; the detection cable core comprises a detection cable core consisting of a plurality of groups of copper conductors which are twisted with each other, a metal shielding layer coated outside the detection cable core and a polyethylene insulating layer internally extruded with the metal shielding layer; the control cable core comprises a control cable core consisting of a plurality of groups of copper conductors which are twisted with each other, a belting layer coated on the outer side of the control cable core and a polyethylene insulating layer internally extruded with the belting layer; a reinforcing rib is further arranged between the transmission cable core and the detection cable core or the control cable core, and the reinforcing rib is an expanded graphite reinforced composite core; the cable comprises a cable core, a cable wrapping tape layer, a cable metal shielding layer and a cable metal shielding layer, wherein the cable wrapping tape layer is wrapped on the outer side of the cable core; a cable armor layer is arranged on the outer side of the cable metal shielding layer; a polyethylene insulating sheath is arranged outside the cable armor layer; and filling layers are arranged in the gap parts among the transmission cable core, the reinforcing ribs and the cable belting layer.
2. The low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the irradiation crosslinking sheath is an irradiation crosslinking polyolefin insulating material, and the irradiation crosslinking insulating layer and the irradiation crosslinking sheath are coated together by talcum powder to avoid adhesion.
3. The low-smoke halogen-free flame-retardant photovoltaic cable according to claim 2, characterized in that: the cable core comprises two groups of insulation transmission cable cores and a detection cable core which are arranged in parallel, the two groups of insulation transmission cable cores are connected through a connecting rib, and the detection cable core is connected above the connecting rib; the cable cross-section sets up to semi-circular, and semi-circular bottom is levelly and smoothly easily to be placed, sets up two sets of strengthening ribs between two sets of transmission cable cores and the detection cable core altogether.
4. The low-smoke halogen-free flame-retardant photovoltaic cable according to claim 2, characterized in that: the cable core comprises two groups of insulation transmission cable cores, a detection cable core and a control wire core which are arranged in parallel, the two groups of insulation transmission cable cores are connected through a connecting rib, the detection cable core is connected above the connecting rib, and the control wire core is connected below the connecting rib; four groups of reinforcing ribs are arranged between the two groups of transmission cable cores and the detection cable cores and between the two groups of transmission cable cores and the control cable cores.
5. The low-smoke halogen-free flame-retardant photovoltaic cable according to claim 2 or 3, characterized in that: the reinforcing ribs are arranged between the transmission cable core and the detection cable core or the control wire core in sections, and the length of each section of reinforcing rib is twice of the diameter of the cross section of the cable.
6. The low-smoke halogen-free flame-retardant photovoltaic cable according to claim 2 or 3, characterized in that: the connecting ribs are thick at two sides and thin in the middle, and the thickness of the thick part of the connecting rib is equal to that of the irradiation crosslinking sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120404722.9U CN214336433U (en) | 2021-02-24 | 2021-02-24 | Low-smoke halogen-free flame-retardant photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120404722.9U CN214336433U (en) | 2021-02-24 | 2021-02-24 | Low-smoke halogen-free flame-retardant photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214336433U true CN214336433U (en) | 2021-10-01 |
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ID=77885424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120404722.9U Active CN214336433U (en) | 2021-02-24 | 2021-02-24 | Low-smoke halogen-free flame-retardant photovoltaic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214336433U (en) |
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2021
- 2021-02-24 CN CN202120404722.9U patent/CN214336433U/en active Active
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