CN218447279U - Low-smoke halogen-free flame-retardant photovoltaic cable with polyolefin sheath - Google Patents
Low-smoke halogen-free flame-retardant photovoltaic cable with polyolefin sheath Download PDFInfo
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- CN218447279U CN218447279U CN202222265664.3U CN202222265664U CN218447279U CN 218447279 U CN218447279 U CN 218447279U CN 202222265664 U CN202222265664 U CN 202222265664U CN 218447279 U CN218447279 U CN 218447279U
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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
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Abstract
The utility model discloses a low smoke and zero halogen flame retardant photovoltaic cable with a polyolefin sheath, which comprises a first cable inner core, a second cable inner core matched with the first cable inner core, a sheath for wrapping the first cable inner core and the second cable inner core, and asbestos filler filled in the gap between the sheath and the first cable inner core and the second cable inner core, wherein the first cable inner core comprises a middle copper core, a first layer of copper core wound around the middle copper core, a second layer of copper core wound around the first layer of copper core, a hollow hose wound around the second layer of copper core and capable of buffering the extrusion force of the second layer of copper core, and a shielding layer wrapping the hollow hose and preventing the hollow hose from loosening; this cable can cushion the extrusion force of second layer copper core to the shielding layer through hollow hose, avoids the shielding layer to damage, still makes first cable inner core and second cable inner core can improve structural strength at winding deformation in-process in addition to the performance and the life of cable have effectively been improved.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to fire-retardant photovoltaic cable of low smoke and zero halogen of polyolefin sheath.
Background
Photovoltaic cables are tools for transmitting electric energy, which are composed of a plurality of wires, and with the continuous progress of society, the use of electric energy is more and more common, and the cables become indispensable parts in our lives.
Although the photovoltaic cable among the prior art has better electrical connection performance, but because the structure is comparatively complicated, weight is great, when built on stilts or unsettled laying, probably because of can not bearing self whole weight and fracture, and the bending nature and the compliance of cable self are also relatively poor, be unfavorable for carrying out the distribution operation in constrictive operation space, and the cable is for improving structural stability, the sinle silk extrusion of establishing in general is in the same place, reuse shielding layer and sheath wrap up one by one, nevertheless because the length of cable leads to the sinle silk of extrusion together to appear the pulling force, damage shielding layer and sheath easily, lead to the sinle silk to expose, be unfavorable for the life of extension cable.
Disclosure of Invention
In view of the above, the invention aims to provide a polyolefin sheathed low-smoke halogen-free flame-retardant photovoltaic cable with high structural strength and long service life.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a fire-retardant photovoltaic cable of polyolefin sheath low smoke and zero halogen, including first cable inner core, with first cable inner core complex second cable inner core, the sheath of first cable inner core of cladding and second cable inner core, fill the asbestos filler in the inside and first cable inner core of sheath and second cable inner core clearance, its characterized in that: the first cable inner core comprises an intermediate copper core, a first layer copper core wound and arranged around the intermediate copper core, a second layer copper core wound and arranged around the first layer copper core, a hollow hose wound and arranged around the second layer copper core and capable of buffering extrusion force of the second layer copper core, and a shielding layer which coats the hollow hose and prevents the hollow hose from loosening.
Preferably, the second layer of copper core is wound in a direction opposite to that of the first layer of copper core.
Preferably, the hollow hose is wound in the same direction as the first layer of copper core.
Preferably, the shielding layer is a metal braided shielding layer or a fiber braided shielding layer.
Preferably, the structure of the second cable core is identical to the structure of the first cable core.
Preferably, the first cable core and the second cable core are wound.
Preferably, the jacket is a low smoke zero halogen polyolefin jacket.
The utility model discloses technical effect mainly embodies in following aspect: this cable can cushion the extrusion force of second layer copper core to the shielding layer through hollow hose, avoids the shielding layer to damage, still makes first cable inner core and second cable inner core can improve structural strength at winding deformation in-process in addition to the performance and the life of cable have effectively been improved.
Drawings
Fig. 1 is a structural diagram of the low smoke zero halogen flame retardant photovoltaic cable with a polyolefin sheath of the present invention;
fig. 2 is a block diagram of the first layer copper core of fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
The utility model provides a fire-retardant photovoltaic cable of polyolefin sheath low smoke and zero halogen, as shown in figure 1, including first cable inner core 1, with first cable inner core 1 complex second cable inner core 2, the sheath 3 of first cable inner core 1 of cladding and second cable inner core 2 fills in 3 inside and first cable inner core 1 of sheath and the asbestos filler 4 in 2 clearances of second cable inner core, first cable inner core 1 sets up for the winding with second cable inner core 2.
As shown in fig. 2, the first cable core 1 includes an intermediate copper core 11, a first layer copper core 12 wound around the intermediate copper core 11, a second layer copper core 13 wound around the first layer copper core 12, a hollow hose 14 wound around the second layer copper core 13 and capable of buffering the extrusion force of the second layer copper core 13, and a shielding layer 15 covering the hollow hose 14 and preventing the hollow hose 14 from loosening. The second layer of copper core 13 is wound in the opposite direction to the first layer of copper core 12. The hollow hose 14 is wound in the same direction as the first layer of copper core 12.
In this embodiment, the shielding layer 15 is a metal braided shielding layer or a fiber braided shielding layer.
In this embodiment, the structure of the second cable core 2 is identical to that of the first cable core 1.
In this embodiment, the jacket 3 is a low smoke zero halogen polyolefin jacket.
The utility model discloses technical effect mainly embodies in following aspect: this cable can cushion the extrusion force of second floor copper core to the shielding layer through hollow hose, avoids the shielding layer to damage, still makes first cable inner core and second cable inner core can improve structural strength in winding deformation process in addition to the performance and the life of cable have effectively been improved.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (7)
1. The utility model provides a fire-retardant photovoltaic cable of polyolefin sheath low smoke and zero halogen, including first cable inner core, with first cable inner core complex second cable inner core, the sheath of first cable inner core of cladding and second cable inner core, fill the asbestos filler in the inside and first cable inner core of sheath and second cable inner core clearance, its characterized in that: the first cable inner core comprises an intermediate copper core, a first layer copper core wound around the intermediate copper core, a second layer copper core wound around the first layer copper core, a hollow hose wound around the second layer copper core and capable of buffering extrusion force of the second layer copper core, and a shielding layer which covers the hollow hose and prevents the hollow hose from being loose.
2. The polyolefin sheath low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the winding direction of the second layer of copper core is opposite to that of the first layer of copper core.
3. The polyolefin sheath low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the winding direction of the hollow hose is the same as that of the first layer of copper core.
4. The polyolefin sheathed low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the shielding layer is a metal braided shielding layer or a fiber braided shielding layer.
5. The polyolefin sheath low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the structure of the second cable inner core is consistent with that of the first cable inner core.
6. The polyolefin sheath low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the first cable inner core and the second cable inner core are arranged in a winding mode.
7. The polyolefin sheath low-smoke halogen-free flame-retardant photovoltaic cable according to claim 1, characterized in that: the sheath is a low-smoke halogen-free polyolefin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222265664.3U CN218447279U (en) | 2022-08-26 | 2022-08-26 | Low-smoke halogen-free flame-retardant photovoltaic cable with polyolefin sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222265664.3U CN218447279U (en) | 2022-08-26 | 2022-08-26 | Low-smoke halogen-free flame-retardant photovoltaic cable with polyolefin sheath |
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| Publication Number | Publication Date |
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| CN218447279U true CN218447279U (en) | 2023-02-03 |
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| CN202222265664.3U Active CN218447279U (en) | 2022-08-26 | 2022-08-26 | Low-smoke halogen-free flame-retardant photovoltaic cable with polyolefin sheath |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116259440A (en) * | 2023-04-23 | 2023-06-13 | 江苏亨通电力电缆有限公司 | Electromagnetic induction self-suppression contact net feed reflux composite cable and manufacturing method |
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2022
- 2022-08-26 CN CN202222265664.3U patent/CN218447279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116259440A (en) * | 2023-04-23 | 2023-06-13 | 江苏亨通电力电缆有限公司 | Electromagnetic induction self-suppression contact net feed reflux composite cable and manufacturing method |
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