CN220189277U - Tear-resistant high-temperature-resistant power cable - Google Patents
Tear-resistant high-temperature-resistant power cable Download PDFInfo
- Publication number
- CN220189277U CN220189277U CN202321464602.3U CN202321464602U CN220189277U CN 220189277 U CN220189277 U CN 220189277U CN 202321464602 U CN202321464602 U CN 202321464602U CN 220189277 U CN220189277 U CN 220189277U
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- resistant
- conductor
- cable core
- power cable
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- 239000004020 conductor Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 239000002033 PVDF binder Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 89
- 238000005260 corrosion Methods 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 5
- 239000003063 flame retardant Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000009941 weaving Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000002679 ablation Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a tearing-resistant high-temperature-resistant power cable, which comprises a cable core and a composite sheath arranged outside the cable core, wherein the cable core consists of three insulated wire cores, each insulated wire core consists of a conductor, a conductor shielding layer, an insulating shielding layer and a copper strip shielding layer which are coaxially and sequentially extruded outside the conductor, and the conductor adopts a plurality of strands of soft conductors; the composite sheath is extruded outside the cable core, a filler is arranged between the composite sheath and the cable core, and the composite sheath comprises a wrapping belt layer, an inner sheath layer, a wear-resistant layer A, an armor layer, a wear-resistant layer B and an outer sheath layer which are coaxially and sequentially extruded outside the filler and the cable core. The utility model improves the problems of defects of a cable arrangement structure, defects of fire and high temperature performance in the prior art, and the like, and has the advantages of bearing protection, self high temperature resistance and the like.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a tearing-resistant and high-temperature-resistant power cable.
Background
At present, along with the development of scientific technology, the fields of industry and the like are rapidly advanced, and the increase of the consumption of cables is brought along, the cables are generally cables similar to ropes formed by twisting at least two wires in each group, each group of wires are mutually insulated and are often twisted around a center, the whole outside is covered with a high-insulation coating layer, the types of the cables are many, and the cables can be applied to various fields and have different use environments in different fields, so that the cables have different requirements.
The existing cable is unreasonable in structural design, is difficult to resist external force, cannot meet the compression-resistant requirement, is not separated among the internal wires of the power cable, and is easy to generate electric arcs when a plurality of wires are clung to form a whole, so that a wire protection layer is broken, and electric leakage and short circuit are caused.
Aiming at the technical problems, the utility model discloses a crosslinked polyethylene insulating flame-retardant polyvinyl chloride sheath power cable which has the advantages that a separation wire structure avoids the rupture of a protective layer, prolongs the service life, resists the damage of external force and the like. Aiming at the technical problems, the utility model discloses a tearing-resistant high-temperature-resistant power cable which has the advantages of bearing protection, self high temperature resistance and the like.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a tearing-resistant high-temperature-resistant power cable, so as to solve the problems that the cable arrangement structure in the prior art has defects and is deficient in performance under the conditions of fire and high temperature. The utility model has the advantages of bearing protection, self high temperature resistance and the like.
The utility model is realized by the following technical scheme: the utility model discloses a tearing-resistant high-temperature-resistant power cable, which comprises a cable core and a composite sheath arranged outside the cable core, wherein the cable core consists of three insulated wire cores, each insulated wire core consists of a conductor, a conductor shielding layer, an insulating shielding layer and a copper strip shielding layer which are coaxially and sequentially extruded outside the conductor, and the conductor adopts a plurality of strands of soft conductors; the composite sheath is extruded outside the cable core, a filler is arranged between the composite sheath and the cable core, and the composite sheath comprises a wrapping belt layer, an inner sheath layer, a wear-resistant layer A, an armor layer, a wear-resistant layer B and an outer sheath layer which are coaxially and sequentially extruded outside the filler and the cable core.
Furthermore, in order to have excellent high and low temperature resistance and dielectric properties, the insulating layer, the inner sheath layer and the outer sheath layer are all made of fluororesin.
Furthermore, in order to improve the working field intensity of the cable, the conductor shielding layer is made of metallized paper or semi-conductor paper.
Furthermore, in order to achieve good stress failure eliminating performance and good thermal stability, the insulating shielding layer is made of PEJ cross-linked adhesive type semiconductive shielding material.
Furthermore, in order to have better shielding and flame-retardant effects, the copper strip shielding layer is formed by weaving tinned copper strips, and the filler is glass fiber.
Furthermore, in order to ensure that the wrapping tape layer has high specific strength, high temperature resistance and good thermal shock resistance, the wrapping tape layer is woven by high silica glass fiber yarns, and the unidirectional coverage rate of the weaving is not less than 60 percent.
Furthermore, in order to have good weather resistance and toughness, the wear-resistant layer A and the wear-resistant layer B are both made of polyvinylidene fluoride resin.
Further, in order to increase the mechanical strength of the cable and improve the corrosion resistance, the armor layer is formed by adopting galvanized thin round steel wire armor or galvanized metal tape armor.
The utility model has the following advantages:
(1) The insulating layer, the inner sheath layer and the outer sheath layer are all made of fluororesin, have the characteristics of excellent high and low temperature resistance, dielectric property, chemical stability, weather resistance, incombustibility, non-tackiness, low friction coefficient and the like, and the conductor shielding layer is made of metallized paper or semiconductor paper;
(2) The insulating shielding layer is made of PEJ crosslinked bonding type semi-conductive shielding material, the PEJ crosslinked type semi-conductive shielding material has the advantages of good stress failure eliminating performance, good thermal stability and good mechanical and electrical properties, meanwhile, the temperature resistance is greatly improved, the copper strip shielding layer is formed by weaving tinned copper strips, the filler is made of glass fiber yarns, the tinned copper strips have good shielding performance, the tinned copper strips isolate media from electromagnetic environment, namely electromagnetic waves in a copper cover and electromagnetic waves outside the copper cover, a shielding effect is generated, the filler is made of glass fiber filling ropes for flame-retardant cables, which are mainly made of glass fibers, subjected to surface treatment and special mechanical cabling, and the glass fiber filling ropes have the advantages of corrosion resistance, non-hygroscopicity and the like besides flame retardance;
(3) The wrapping tape layer is woven by high silica glass fiber yarns, the unidirectional coverage rate of the weaving is not less than 60%, the wrapping tape layer has the characteristics of high specific strength, high temperature resistance, good thermal shock resistance, ablation resistance, low heat conductivity, low thermal shrinkage, electric insulation, insolubility in an organic solvent, good cutting property and the like, the wear-resistant layers A and B are made of polyvinylidene fluoride resin, and the wear-resistant layer A and B are made of polyvinylidene fluoride resin materials, have good weather resistance, good toughness, low friction coefficient, strong corrosion resistance, ageing resistance, weather resistance and good radiation resistance, and the armor layer is made of galvanized thin round steel wire armor or galvanized metal tape armor, so that the mechanical strength of the cable is improved, the anti-corrosion capability is improved, and the tear resistance effect of the cable is improved due to the arrangement of the inner sheath layer, the wear-resistant layer A, the wear-resistant layer B and the armor layer.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the core protection structure of the present utility model;
fig. 3 is a schematic view of the outer sheath according to the present utility model.
In the figure: 1. a cable core; 2. a composite sheath; 3. an insulated wire core; 4. a conductor; 5. a conductor shielding layer; 6. an insulating layer; 7. an insulating shielding layer; 8. a copper tape shielding layer; 9. a filler; 10. a tape layer; 11. an inner sheath layer; 12. a wear-resistant layer A; 13. a wear-resistant layer B; 14. an outer sheath layer; 15. an armor layer.
Detailed Description
The following detailed description of embodiments of the present utility model, which are given by taking the technical solution of the present utility model as a premise, gives detailed embodiments and specific operation procedures, but the scope of the present utility model is not limited to the following embodiments, and in the description of the present utility model, words indicating orientation or positional relationship like "front", "rear", "left", "right", etc. are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
The utility model provides a technical scheme that: the utility model provides a tear-resistant high temperature resistant power cable, as shown in figures 1 to 3, includes cable core 1, still includes the compound sheath 2 that locates outside cable core 1, and cable core 1 comprises three insulation core 3, and every insulation core 3 comprises conductor 4, conductor shielding layer 5, insulating layer 6, insulating shielding layer 7, copper strips shielding layer 8 that coaxial crowded package in proper order outside the conductor 4, and conductor 4 adopts stranded flexible conductor; the composite sheath 2 is extruded outside the cable core 1, a filler 9 is arranged between the composite sheath 2 and the cable core 1, and the composite sheath 2 comprises a wrapping band layer 10, an inner sheath layer 11, a wear-resistant layer A12, an armor layer 15, a wear-resistant layer B13 and an outer sheath layer 14 which are coaxially and sequentially extruded outside the filler 9 and the cable core 1.
As shown in fig. 1 to 3, the insulating layer 6, the inner sheath layer 11 and the outer sheath layer 14 are made of fluororesin, and have excellent high and low temperature resistance, dielectric properties, chemical stability, weather resistance, incombustibility, non-tackiness, low friction coefficient and the like.
As shown in fig. 1 to 3, the conductor shielding layer 5 is made of metallized paper or semiconductor paper, and the metallized paper and the semiconductor paper are characterized by self-healing property, i.e. when a certain place breaks down, a short circuit current causes a metal film around the broken-down part to melt and evaporate, and restore the insulating property, so that the influence of penetrating conductive defects and weak points in the paper or film on the breakdown strength is remarkably reduced, and the working field intensity is improved.
As shown in fig. 1 to 3, the insulating shielding layer 7 is made of PEJ crosslinked adhesive type semiconductive shielding material, and the PEJ crosslinked type semiconductive shielding material has the advantages of good stress failure eliminating performance, good thermal stability and good mechanical and electrical properties, and meanwhile, the temperature resistance is greatly improved.
As shown in fig. 1 to 3, the copper strip shielding layer 8 is formed by braiding tin-plated copper strips, the filler 9 is made of glass fiber, the tin-plated copper strips have better shielding, the tin-plated copper strips isolate the medium from the electromagnetic environment, namely electromagnetic waves in the copper cover are isolated from electromagnetic waves outside the copper cover, a shielding effect is generated, the filler 9 is made of glass fiber filling ropes for flame-retardant cables, which are prepared by using glass fibers as main raw materials and carrying out surface treatment and special mechanical twisting, and the glass fiber filling ropes have the advantages of corrosion resistance, non-hygroscopicity and the like besides flame retardance.
As shown in fig. 1 to 3, the tape layer 10 is woven by high silica glass fiber yarn, and the unidirectional coverage rate of the weave is not less than 60%, so that the tape layer 10 has the characteristics of high specific strength, high temperature resistance, good thermal shock resistance, ablation resistance, low heat conductivity coefficient, low heat shrinkage, electric insulation, insolubility in organic solvents, good cutting performance and the like.
As shown in fig. 1 to 3, the wear-resistant layer a12 and the wear-resistant layer B13 are made of polyvinylidene fluoride resin, and have good weather resistance, toughness, low friction coefficient, strong corrosion resistance, aging resistance, weather resistance and good radiation resistance.
As shown in fig. 1 to 3, the armor layer 15 adopts a galvanized thin round steel wire armor or a galvanized metal tape armor to increase the mechanical strength of the cable and improve the corrosion resistance.
The principle of the utility model is as follows: the cable core 1 consists of three insulated wire cores 3, each insulated wire core 3 consists of a conductor 4, a conductor shielding layer 5, an insulating layer 6, an insulating shielding layer 7 and a copper strip shielding layer 8 which are coaxially and sequentially extruded outside the conductor 4, wherein the conductor shielding layer 5 is made of metallized paper or semiconductor paper, the metallized paper and the semiconductor paper are characterized by self-healing property, namely, when a certain place breaks down, a metal film around the break-down part is melted and evaporated by short-circuit current and the insulating property is recovered, so that the influence of penetrating conductive defects and weaknesses in the paper or film on the breakdown strength is obviously reduced, the working field intensity is improved, the insulating shielding layer 7 is made of PEJ crosslinked bonding type semi-conductive shielding material, the PEJ crosslinked type semi-conductive shielding material has the advantages of good stress damage eliminating property, good thermal stability and good mechanical and electrical properties, meanwhile, the temperature resistance is also greatly improved, the copper strip shielding layer 8 is made of tinned copper strips, the filler 9 is made of glass fiber wires, the tinned copper strips have good shielding effect, and the tinned copper strips isolate the medium from electromagnetic environment, namely electromagnetic waves in the copper cover and electromagnetic wave electromagnetic shielding effect are electrically isolated from the copper cover, and magnetic wave is generated;
the filler 9 adopts glass fiber as a main raw material, and the glass fiber filling rope for the flame-retardant cable subjected to surface treatment and special mechanical cabling has the advantages of corrosion resistance, non-hygroscopicity and the like besides flame retardance; the conductor 4 adopts a plurality of strands of soft conductors; the composite sheath 2 is extruded outside the cable core 1, a filler 9 is arranged between the composite sheath 2 and the cable core 1, and the composite sheath 2 comprises a wrapping band layer 10, an inner sheath layer 11, a wear-resistant layer A12, an armor layer 15, a wear-resistant layer B13 and an outer sheath layer 14 which are coaxially and sequentially extruded outside the filler 9 and the cable core 1; the insulating layer 6, the inner sheath layer 11 and the outer sheath layer 14 are all made of fluororesin, and have the characteristics of excellent high and low temperature resistance, dielectric property, chemical stability, weather resistance, incombustibility, non-tackiness, low friction coefficient and the like, the wrapping tape layer 10 is woven by high silica glass fiber yarns, the unidirectional coverage rate of the weaving is not less than 60%, the wrapping tape layer 10 has the characteristics of high specific strength, high temperature resistance, good thermal shock resistance, ablation resistance, low heat conductivity, low heat shrinkage, electrical insulation, insolubility in an organic solvent, good cutting property and the like, the wear-resistant layer A12 and the wear-resistant layer B13 are both made of polyvinylidene fluoride resin, and the wear-resistant layer B13 are made of polyvinylidene fluoride resin, have good toughness, lower friction coefficient, strong corrosion resistance, ageing resistance, weather resistance, good radiation resistance and the armor layer 15 is made of galvanized thin round steel wire armor or galvanized metal tape armor, so that the mechanical strength of a cable is increased, and the corrosion resistance is improved.
Claims (8)
1. The utility model provides a tear-resistant high temperature resistant power cable, includes the cable core, still including locating the compound sheath outside the cable core, its characterized in that: the cable core consists of three insulated wire cores, each insulated wire core consists of a conductor, a conductor shielding layer, an insulating shielding layer and a copper strip shielding layer which are coaxially and sequentially extruded outside the conductor, and the conductor adopts a plurality of strands of soft conductors; the composite sheath is extruded outside the cable core, a filler is arranged between the composite sheath and the cable core, and the composite sheath comprises a wrapping belt layer, an inner sheath layer, a wear-resistant layer A, an armor layer, a wear-resistant layer B and an outer sheath layer which are coaxially and sequentially extruded outside the filler and the cable core.
2. The tear-resistant and high temperature resistant power cable of claim 1, wherein said insulating layer, inner jacket layer, and outer jacket layer are each made of a fluororesin material.
3. A tear-resistant high temperature resistant power cable according to claim 1, wherein said conductor shield is made of metallized paper or semiconductive paper.
4. The tear-resistant and high temperature resistant power cable of claim 1, wherein said insulating shield is made of PEJ cross-linked adhesive semiconductive shield.
5. The tear-resistant and high temperature resistant power cable of claim 1, wherein said copper tape shield is woven from tinned copper tape and the filler is fiberglass.
6. The tear-resistant and high temperature resistant power cable according to claim 1, wherein the tape layer is woven from high silica glass fiber yarns, and the unidirectional coverage of the weave is not less than 60%.
7. The tearing-resistant high-temperature-resistant power cable according to claim 1, wherein the wear-resistant layer A and the wear-resistant layer B are made of polyvinylidene fluoride resin.
8. A tear resistant and high temperature resistant power cable in accordance with claim 1 wherein said armor layer is a galvanized thin round wire armor or a galvanized metal tape armor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321464602.3U CN220189277U (en) | 2023-06-08 | 2023-06-08 | Tear-resistant high-temperature-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321464602.3U CN220189277U (en) | 2023-06-08 | 2023-06-08 | Tear-resistant high-temperature-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220189277U true CN220189277U (en) | 2023-12-15 |
Family
ID=89100324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321464602.3U Active CN220189277U (en) | 2023-06-08 | 2023-06-08 | Tear-resistant high-temperature-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220189277U (en) |
-
2023
- 2023-06-08 CN CN202321464602.3U patent/CN220189277U/en active Active
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