CN217982892U - Outdoor special cable - Google Patents
Outdoor special cable Download PDFInfo
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- CN217982892U CN217982892U CN202222429170.4U CN202222429170U CN217982892U CN 217982892 U CN217982892 U CN 217982892U CN 202222429170 U CN202222429170 U CN 202222429170U CN 217982892 U CN217982892 U CN 217982892U
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Abstract
This outdoor special cable, through being provided with the heart yearn, the heart yearn outside is provided with the cortex, be provided with first fire prevention filling layer between heart yearn and the cortex, the cortex outside is provided with the coating, the heart yearn includes by outer fire protection layer, high temperature resistant insulating layer, dampproofing protective layer and a plurality of strand wire that sets gradually to interior, be provided with second fire prevention filling layer between dampproofing protective layer and the wire. Wherein, the coating that the skin layer outside set up is the fluororesin coating, and the fluororesin coating has improved the whole heat-resisting of cable, resistant time and corrosion resistance, and the design of second fire prevention filling layer and dampproofing protective layer provides more help for the security of cable, has slowed down the ageing speed of cable and has improved the safety in utilization of cable.
Description
Technical Field
The utility model relates to a relevant technical field of cable, in particular to outdoor special cable.
Background
With the development of society, especially rural urbanization, the overall electricity demand of society is increased, so that the circuit laying environment is more and more diverse, especially the outdoor laying environment, such as in summer in coastal areas in south, typhoon outbreaks are frequent every year and are closer to the direct sun point, part of cables can be soaked by seawater, and in addition, the cables are used in the environment, and long-term exposure to the sun and rain can easily accelerate the aging speed, so that potential safety hazards are caused to the safety of people in the use range, and the problem to be solved at present is urgently needed.
For this reason, it is necessary to provide an outdoor dedicated cable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is overcome not enough that exists among the prior art, provides an outdoor special cable, is used for solving prior art's problem.
In order to achieve the above purpose, according to the utility model provides a technical scheme is: outdoor special cable, including a plurality of heart yearns, the heart yearn outside is provided with the cortex, be provided with first fire prevention filling layer between heart yearn and the cortex, the cortex outside is provided with the coating, the heart yearn includes by outer fire protection layer, high temperature resistant insulating layer, dampproofing protective layer and a plurality of strand wire that sets gradually to interior, be provided with second fire prevention filling layer between dampproofing protective layer and the wire.
As a further aspect of the present invention, there is provided: the first fireproof filling layer is set to be a magnesium oxide powder layer.
As a further aspect of the present invention, the present invention is characterized in that: the number of the core wires is at least 1.
As a further aspect of the present invention, there is provided: the fireproof protective layer is an alloy wire and ceramic fiber composite layer.
As a further aspect of the present invention, the present invention is characterized in that: the high-temperature-resistant insulating layer is arranged as a high silica glass fiber band winding cladding.
As a further aspect of the present invention, the present invention is characterized in that: the moisture-proof protective layer is a crosslinked polyethylene layer.
As a further aspect of the present invention, the present invention is characterized in that: the lead is set to be at least 1 strand, and each strand is formed by twisting 7 to 19 bare soft copper wires.
As a further aspect of the present invention, there is provided: the second fireproof filling layer is set to be a magnesium oxide powder layer.
As a further aspect of the present invention, there is provided: the coating is provided as a fluororesin coating.
Compared with the prior art, the utility model discloses beneficial effect:
this outdoor special cable, through being provided with the heart yearn, the heart yearn outside is provided with the cortex, be provided with first fire prevention filling layer between heart yearn and the cortex, the cortex outside is provided with the coating, the heart yearn includes by outer fire protection layer, high temperature resistant insulating layer, dampproofing protective layer and a plurality of strand wire that sets gradually to interior, be provided with second fire prevention filling layer between dampproofing protective layer and the wire. Wherein, the coating that the skin layer outside set up is the fluororesin coating, and the fluororesin coating has improved the whole heat-resisting, resistant time and the corrosion resistance of cable, and the design of second fire prevention filling layer and dampproofing protective layer provides more help for the security of cable to reached and slowed down ageing speed and improved the beneficial effect of safety in utilization.
Drawings
Fig. 1 is the utility model relates to a cross-sectional structure schematic diagram of outdoor private cable.
Fig. 2 is a schematic cross-sectional view of the core wire of the outdoor special cable of the present invention.
Description of elements in the drawings: 10-a core wire; 20-an outer skin layer; 30-a first fire-resistant filling layer; 40-coating; 11-a fire protection layer; 12-a high temperature resistant insulating layer; 13-a moisture-proof protective layer; 14-a wire; 15-second fire-resistant filling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, an outdoor special cable includes a plurality of core wires 10, an outer skin layer 20 is disposed outside the core wires 10, a first fireproof filling layer 30 is disposed between the core wires 10 and the outer skin layer, a coating 40 is disposed outside the outer skin layer 20, the core wires 10 include a fireproof protection layer 11, a high temperature insulating layer 12, a moisture-proof protection layer 13, and a plurality of wires 14, which are sequentially disposed from outside to inside, and a second fireproof filling layer 15 is disposed between the moisture-proof protection layer 13 and the wires 14. The design of coating, second fire prevention filling layer and dampproofing protective layer provides more help for the security of cable, has slowed down the ageing speed of cable and has improved the safety in utilization of cable.
Preferably, in the outdoor special cable, the first fireproof filling layer 30 is provided as a magnesium oxide powder layer. The magnesium oxide powder layer has high fireproof and insulating performance, can be converted into crystals by being burnt at a high temperature of more than 1000 ℃, and can be converted into magnesia or sintered magnesium oxide when the temperature is raised to 1500-2000 ℃, so that the overall safety of the outdoor special cable is effectively improved.
Preferably, in the outdoor dedicated cable, at least 1 core wire 10 is provided. The selection is convenient to be carried out according to the actual requirement, and the waste is avoided.
Preferably, in the outdoor special cable, the fireproof protective layer 11 is an alloy wire and ceramic fiber composite layer. The alloy wire and ceramic fiber composite layer has double protection effects on the cable, and the fireproof performance of the cable is better improved.
Preferably, in the outdoor special cable, the high temperature insulation layer 12 is provided as a high silica glass fiber tape-wound cladding. The high silica glass fiber tape wrapping layer can also keep good strength and elasticity for a long time when the environmental temperature reaches 1000 ℃, can continuously resist the temperature of 1000 ℃, can resist the temperature of 1400 ℃ for a short time, does not contain asbestos, and is nontoxic and harmless.
Preferably, in the outdoor special cable, the moisture-proof protection layer 13 is a crosslinked polyethylene layer. The crosslinked polyethylene has excellent waterproof and moistureproof properties, and can prevent rainwater and other water vapor from influencing the safety of the cable.
Preferably, in the outdoor special cable, the number of the wires 14 is at least 1, and each wire is formed by twisting 7 to 19 bare soft copper wires. The sectional area of the lead is determined by the number of strands and the number of the strands, and the lead with a proper specification can be selected according to actual use requirements.
Preferably, in the outdoor special cable, the second fireproof filling layer 15 is a magnesium oxide powder layer. The setting of second fire prevention filling layer 15 has effectively improved the fire behavior of whole cable.
Preferably, in the outdoor special cable, the coating 40 is a fluororesin coating. The fluororesin coating has good anti-sticking property, heat resistance, corrosion resistance and flame retardance, and effectively prolongs the service life of the cable used outdoors.
Example 1
Referring to fig. 1-2, in an embodiment of the present invention, an outdoor special cable includes a plurality of core wires 10, an outer skin layer 20 is disposed outside the core wires 10, a first fireproof filling layer 30 is disposed between the core wires 10 and the outer skin layer, a coating 40 is disposed outside the outer skin layer 20, the core wires 10 include a fireproof protection layer 11, a high temperature insulating layer 12, a moisture-proof protection layer 13, and a plurality of wires 14, which are sequentially disposed from outside to inside, and a second fireproof filling layer 15 is disposed between the moisture-proof protection layer 13 and the wires 14.
Preferably, in the outdoor special cable, the first fireproof filling layer 30 is provided as a magnesium oxide powder layer.
Preferably, in the outdoor dedicated cable, the number of the core wires 10 is 3.
Preferably, in the outdoor special cable, the fireproof protective layer 11 is an alloy wire and ceramic fiber composite layer.
Preferably, in the cable for outdoor use, the high temperature insulating layer 12 is provided as a high silica glass fiber tape-wound cladding.
Preferably, in the outdoor special cable, the moisture-proof protection layer 13 is a crosslinked polyethylene layer.
Preferably, in the outdoor special cable, the number of the conductors 14 is 5, and each conductor is formed by twisting 19 bare soft copper wires.
Preferably, in the outdoor special cable, the second fireproof filling layer 15 is provided as a magnesium oxide powder layer.
Preferably, in the outdoor special cable, the coating 40 is a fluororesin coating.
Example 2
The embodiment of the utility model provides an in, an outdoor special cable, including a plurality of heart yearns 10, the heart yearn 10 outside is provided with cortex 20, be provided with first fire prevention filling layer 30 between heart yearn 10 and the cortex, the cortex 20 outside is provided with coating 40, heart yearn 10 includes by outer fire protection layer 11, high temperature resistant insulating layer 12, dampproofing protective layer 13 and a plurality of strand wire 14 that set gradually to interior, be provided with second fire prevention filling layer 15 between dampproofing protective layer 13 and the wire 14.
Preferably, in the outdoor special cable, the first fireproof filling layer 30 is provided as a magnesium oxide powder layer.
Preferably, in the outdoor special cable, the number of the core wires 10 is 4.
Preferably, in the outdoor special cable, the fireproof protection layer 11 is an alloy wire and ceramic fiber composite layer.
Preferably, in the outdoor special cable, the high temperature insulation layer 12 is provided as a high silica glass fiber tape-wound cladding.
Preferably, in the outdoor special cable, the moisture-proof protection layer 13 is a crosslinked polyethylene layer.
Preferably, in the outdoor special cable, the number of the wires 14 is 3, and each wire is formed by twisting 17 bare soft copper wires.
Preferably, in the outdoor special cable, the second fireproof filling layer 15 is provided as a magnesium oxide powder layer.
Preferably, in the outdoor special cable, the coating 40 is a fluororesin coating.
Example 3
The embodiment of the utility model provides an in, an outdoor special cable, including a plurality of heart yearns 10, the heart yearn 10 outside is provided with cortex 20, be provided with first fire prevention filling layer 30 between heart yearn 10 and the cortex, the cortex 20 outside is provided with coating 40, heart yearn 10 includes by outer fire protection layer 11, high temperature resistant insulating layer 12, moisture protection layer 13 and a plurality of strand wire 14 that set gradually to interior, be provided with second fire prevention filling layer 15 between moisture protection layer 13 and the wire 14.
Preferably, in the outdoor special cable, the first fireproof filling layer 30 is provided as a magnesium oxide powder layer.
Preferably, in the outdoor special cable, the number of the core wires 10 is 5.
Preferably, in the outdoor special cable, the fireproof protection layer 11 is an alloy wire and ceramic fiber composite layer.
Preferably, in the outdoor special cable, the high temperature insulation layer 12 is provided as a high silica glass fiber tape-wound cladding.
Preferably, in the outdoor special cable, the moisture-proof protection layer 13 is a crosslinked polyethylene layer.
Preferably, in the outdoor special cable, the number of the wires 14 is 5, and each wire is formed by twisting 7 bare soft copper wires.
Preferably, in the outdoor special cable, the second fireproof filling layer 15 is a magnesium oxide powder layer.
Preferably, in the outdoor special cable, the coating 40 is a fluororesin coating.
The above detailed description is specific to one possible embodiment of the present invention, but the embodiment is not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. An outdoor special cable which is characterized in that: including a plurality of heart yearns (10), heart yearn (10) outside is provided with cortex (20), be provided with first fire prevention filling layer (30) between heart yearn (10) and the cortex, cortex (20) outside is provided with coating (40), heart yearn (10) include by outer fire protection layer (11), high temperature resistant insulating layer (12), dampproofing protective layer (13) and a plurality of strand wire (14) that set gradually in to, be provided with second fire prevention filling layer (15) between dampproofing protective layer (13) and wire (14).
2. The outdoor dedicated cable according to claim 1, wherein: the first fireproof filling layer (30) is arranged as a magnesium oxide powder layer.
3. The outdoor dedicated cable according to claim 1, wherein: the number of the core wires (10) is at least 1.
4. The outdoor dedicated cable according to claim 1, wherein: the fireproof protection layer (11) is an alloy wire and ceramic fiber composite layer.
5. The outdoor dedicated cable according to claim 1, wherein: the high-temperature-resistant insulating layer (12) is arranged to be a high silica glass fiber tape winding cladding.
6. The outdoor dedicated cable according to claim 1, wherein: the moisture-proof protective layer (13) is a crosslinked polyethylene layer.
7. The outdoor dedicated cable according to claim 1, wherein: the lead (14) is at least 1 strand, and each strand is formed by twisting 7-19 bare soft copper wires.
8. The outdoor dedicated cable according to claim 1, wherein: the second fireproof filling layer (15) is arranged as a magnesium oxide powder layer.
9. The outdoor dedicated cable according to claim 1, wherein: the coating (40) is provided as a fluororesin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429170.4U CN217982892U (en) | 2022-09-14 | 2022-09-14 | Outdoor special cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222429170.4U CN217982892U (en) | 2022-09-14 | 2022-09-14 | Outdoor special cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217982892U true CN217982892U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222429170.4U Active CN217982892U (en) | 2022-09-14 | 2022-09-14 | Outdoor special cable |
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| CN (1) | CN217982892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115862934A (en) * | 2022-12-26 | 2023-03-28 | 人民电缆集团有限公司 | Novel high-capacity anti-aging cable in high-temperature place and production method thereof |
-
2022
- 2022-09-14 CN CN202222429170.4U patent/CN217982892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115862934A (en) * | 2022-12-26 | 2023-03-28 | 人民电缆集团有限公司 | Novel high-capacity anti-aging cable in high-temperature place and production method thereof |
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