CN112908549A - Copper clad aluminum conductor extruded insulation power cable - Google Patents
Copper clad aluminum conductor extruded insulation power cable Download PDFInfo
- Publication number
- CN112908549A CN112908549A CN202110095990.1A CN202110095990A CN112908549A CN 112908549 A CN112908549 A CN 112908549A CN 202110095990 A CN202110095990 A CN 202110095990A CN 112908549 A CN112908549 A CN 112908549A
- Authority
- CN
- China
- Prior art keywords
- layer
- damping
- copper
- clad aluminum
- power cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 42
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000009413 insulation Methods 0.000 title claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 7
- 229910052802 copper Inorganic materials 0.000 title claims description 7
- 239000010949 copper Substances 0.000 title claims description 7
- 239000010410 layer Substances 0.000 claims abstract description 101
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 229920005594 polymer fiber Polymers 0.000 claims abstract description 13
- 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 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 60
- 239000002245 particle Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 210000004177 elastic tissue Anatomy 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 2
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cable manufacture, in particular to a copper-clad aluminum conductor extruded insulation power cable which comprises a sheath and a cable core; the cable core comprises a conductor and an insulating inner layer extruded on the outer side surface of the conductor, and the conductor is formed by stranding a plurality of copper-clad aluminum single wires; the cable comprises a sheath, a cable core, a first insulating layer, a braided mesh shielding layer, a second insulating layer, a filling shielding layer and an outer protective layer, wherein the cable core is arranged in the first insulating layer, the first insulating layer is filled with a flame-retardant filler, the filling shielding layer is filled with electromagnetic shielding fibers, and the electromagnetic shielding fibers are polymer fibers with surfaces plated with metal.
Description
Technical Field
The invention relates to the technical field of cable manufacturing, in particular to a copper-clad aluminum conductor extruded insulation power cable.
Background
The cable plays an important role in the process of power and information transmission, and is easily influenced by the interference of an external electromagnetic field and electromagnetic waves in the process of high-frequency transmission of the cable.
Disclosure of Invention
Therefore, the power cable with the copper-clad aluminum conductor extruded and insulated needs to be provided, and the problems that the shielding efficiency is not high and the transmission of the power cable is influenced in the existing cable are solved.
In order to achieve the purpose, the invention provides a copper-clad aluminum conductor extruded insulation power cable which comprises a sheath and a cable core;
the cable core comprises a conductor and an insulating inner layer extruded on the outer side surface of the conductor, and the conductor is formed by stranding a plurality of copper-clad aluminum single wires;
the cable core is arranged in the first insulating layer, the flame-retardant filler is filled in the first insulating layer, the electromagnetic shielding fiber is filled in the filling shielding layer, and the electromagnetic shielding fiber is a polymer fiber with a metal plated on the surface.
Further, a damping vibration attenuation layer is arranged between the filling shielding layer and the outer protection layer, the damping vibration attenuation layer is arranged in a hollow mode to form a vibration attenuation cavity, and damping particles are filled in the vibration attenuation cavity.
Furthermore, reinforcing ribs are arranged in the vibration reduction cavity and connected with two opposite side faces of the vibration reduction cavity.
Further, the filling shielding layer is provided with a damping unit, and the damping unit comprises a damping sleeve and damping particles filled in the damping sleeve.
Furthermore, the damping unit is fixedly connected with the damping vibration attenuation layer, a through hole is formed in the side face, close to the filling shielding layer, of the damping vibration attenuation layer, and the inside of the damping sleeve is communicated with the vibration attenuation cavity through the through hole.
Furthermore, the damping sleeve is long-strip-shaped and extends along the axis of the sheath.
Further, the thickness of the shielding layer of the woven mesh and the thickness of the filling shielding layer are 1: 1-3.
Further, the metal on the surface of the electromagnetic shielding fiber is copper, silver or nickel, and the polymer fiber is polyester fiber, polyacrylonitrile fiber or polyolefin elastic fiber.
Furthermore, the woven mesh shielding layer is a nickel-plated steel wire mesh, and the weaving density of the nickel-plated steel wire mesh is not less than 85%.
Further, the flame-retardant filler is glass fiber cotton, the insulating inner layer, the first insulating layer and the second insulating layer are made of cross-linked polyethylene or polyvinyl chloride, and the outer protective layer is made of polyvinyl chloride.
Further, the medial surface setting on first insulation layer is fixed with fixed rib, the one end of fixed rib is fixed with the medial surface on first insulation layer, fixed rib sets up along the radial of first insulation inlayer, and the other end of fixed rib is fixed with solid fixed ring, the cable core sets up in solid fixed ring. The fixing ring plays a role in positioning the cable core.
The technical scheme has the following beneficial effects:
1. according to the invention, the two shielding layers are arranged on the sheath, electromagnetic waves generated when the alternating current is conveyed by the inner cable core are completely shielded after passing through the mesh grid shielding layer and the filling shielding layer in the process of external transmission, the mesh grid shielding layer and the filling shielding layer act together, the shielding efficiency is high, and in addition, the ductility and the flexibility of the polymer fibers are excellent, so that the cable can be bent, and the tensile strength of the cable can be improved.
2. When the cable is buried underground or used overhead, the vibration of the external environment can affect the structure of an interlayer inside the cable, the cable is in a vibration environment for a long time, and each layer in the sheath is easy to wear and damage.
3. In the invention, the damping vibration attenuation unit is arranged in the filling shielding layer, when the electromagnetic shielding fiber is under the action of an external electromagnetic field, the metal layer on the outer surface of the polymer fiber generates charge migration, the polymer fiber is easy to generate micro vibration in the charge migration process, and damping particles on the damping unit can absorb the vibration of the polymer fiber, so that the phenomenon that the filling shielding layer generates heat or the position is changed due to vibration, and the shielding effect of the filling shielding layer is further damaged is avoided.
Drawings
Fig. 1 is a cross-sectional view of an embodiment of the cable.
Fig. 2 is a partial sectional view taken along line a-a of fig. 1.
Description of reference numerals:
1. a cable core; 11. a conductor; 12. an insulating inner layer;
2. a sheath; 21. a first insulating layer; 211. a flame retardant filler; 212. fixing ribs; 213. a fixing ring; 22. a mesh grid shielding layer; 23. a second insulating layer; 24. filling the shielding layer; 241. a damping sleeve; 25. a damping vibration attenuation layer; 251. a vibration damping cavity; 252. reinforcing ribs; 253. a through hole; 26. and an outer protective layer.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1-2, the present embodiment provides a copper clad aluminum conductor extruded insulation power cable, which includes a sheath 2 and a cable core 1;
the cable core 1 comprises a conductor 11 and an insulating inner layer 12 extruded on the outer side surface of the conductor 11, wherein the conductor 11 is formed by stranding a plurality of copper-clad aluminum single wires; the conductor 11 is a non-compacted circular conductor 11, a compacted conductor 11, or a molded conductor 11.
When the conductor 11 is a non-compact round conductor 11, one copper-clad aluminum single wire in the conductor 11 is used as a central single wire, the other wires are arranged in a multilayer manner around the central single wire, the number of each layer of copper-clad aluminum single wire is 6 × N, and N is the number of layers.
When the conductor 11 is a compact round conductor 11, a plurality of copper-clad aluminum single wires are distributed in an array in the conductor 11.
In this embodiment, the conductor 11 is a compact round conductor 11, and the insulating inner layer 12 is made of polyvinyl chloride.
The sheath 2 comprises a first insulating layer 21, a woven mesh shielding layer 22, a second insulating layer 23, a filling shielding layer 24, a damping vibration attenuation layer 25 and an outer protection layer 26 from inside to outside, the cable core 1 is arranged in the first insulating layer 21, and the first insulating layer 21 is filled with a flame-retardant filler 211.
In this embodiment, a fixing rib 212 is fixedly disposed on an inner side surface of the first insulating layer 21, one end of the fixing rib 212 is fixed to the inner side surface of the first insulating layer 21, the fixing rib 212 is disposed along a radial direction of the first insulating inner layer 12, a fixing ring 213 is fixedly disposed at the other end of the fixing rib 212, and the cable core 1 is disposed in the fixing ring 213. The fixed ring 213 plays a role in positioning the cable cores 1, the flame-retardant filler 211 is glass fiber cotton, and specifically, the flame-retardant filler comprises four cable cores 1, and the number of the fixed ribs 212 and the fixed ring 213 corresponds to the number of the cable cores 1 one by one.
The woven mesh shielding layer 22 is a nickel-plated steel wire mesh, and the weaving density of the nickel-plated steel wire mesh is 85%. In this embodiment, the nickel-plated steel wire mesh is woven by nickel-plated steel wires with a diameter of 1.0mm, so the thickness of the nickel-plated steel wire mesh is 1.0 mm.
The first insulating layer 21 and the second insulating layer 23 are made of polyvinyl chloride, and the outer protective layer 26 is made of polyvinyl chloride.
The filling shielding layer 24 is filled with electromagnetic shielding fibers, and the electromagnetic shielding fibers are polymer fibers with surfaces plated with metal. The filling shielding layer 24 is provided with a damping unit, and the damping unit includes a damping sleeve 241 and damping particles filled in the damping sleeve 241.
The metal on the surface of the electromagnetic shielding fiber is copper, silver or nickel, the polymer fiber is polyester fiber, polyacrylonitrile fiber or polyolefin elastic fiber, and the three polymer fibers have good heat resistance.
In this embodiment, the damping vibration attenuation layer 25 is made of a buffering vibration attenuation material, in this embodiment, the damping vibration attenuation layer is made of sponge, the sponge is hollow inside to form a vibration attenuation cavity 251, and the vibration attenuation cavity 251 is filled with damping particles.
Reinforcing ribs 252 are arranged in the vibration reduction cavity 251, and the reinforcing ribs 252 are connected with two opposite side surfaces of the vibration reduction cavity 251. The damping unit is fixedly connected with the damping vibration attenuation layer 25, a through hole 253 is formed in the side face, close to the filling shielding layer 24, of the damping vibration attenuation layer 25, and the interior of the damping sleeve 241 is communicated with the vibration attenuation cavity 251 through the through hole 253. The damping sleeve 241 is long-strip-shaped, and the damping sleeve 241 extends along the axis of the sheath 2. The damping sleeve 241 is fixed to the damping vibration attenuation layer 25, which is equivalent to the damping vibration attenuation layer 25 having a protruding structure toward the filling shielding layer 24, so that the filling shielding layer 24 is combined with the damping vibration attenuation layer 25 more firmly.
The particle size of the damping particles in this embodiment is 0.1-1mm, and the specification of 0.1, 0.5 and 1mm can be specifically selected.
The thickness of damping vibration attenuation layer 25 can be 1mm, 2mm and 3mm, selects the sponge that uses 3mm thickness as damping vibration attenuation layer 25 in this embodiment, and the annular damping chamber 251 that the width is 1mm is seted up to the sponge middle part, and the damping granule that the particle diameter is 0.5m is filled inside it.
In this embodiment, the damping particles and the electromagnetic shielding fibers are both tightly packed.
After the cable is shielded by the mesh grid shielding layer 22 and the filling shielding layer 24, the shielding effectiveness can reach over 100dB, and the shielding effectiveness level is T level.
When the invention is used:
when cable core 1 carried high frequency alternating current, the production electromagnetic wave was in the in-process of outside transmission, after mesh grid shielding layer 22 and filling shielding layer 24, was shielded completely and falls, mesh grid shielding layer 22 and filling shielding layer 24 combined action, and shielding efficiency is high, and polymer fiber ductility and pliability are splendid in addition, are favorable to the cable to carry out the tensile strength of bending and improvement cable.
When the cable is buried underground or used overhead, the vibration of the external environment can affect the structure of the interlayer inside the cable, and the cable is in a vibration environment for a long time, and each layer inside the sheath 2 is easy to wear and damage.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.
Claims (10)
1. A copper clad aluminum conductor extruded insulation power cable is characterized by comprising a sheath and a cable core;
the cable core comprises a conductor and an insulating inner layer extruded on the outer side surface of the conductor, and the conductor is formed by stranding a plurality of copper-clad aluminum single wires;
the cable core is arranged in the first insulating layer, the flame-retardant filler is filled in the first insulating layer, the electromagnetic shielding fiber is filled in the filling shielding layer, and the electromagnetic shielding fiber is a polymer fiber with a metal plated on the surface.
2. The copper-clad aluminum conductor extruded insulation power cable according to claim 1, wherein a damping vibration attenuation layer is further arranged between the filling shielding layer and the outer protection layer, the damping vibration attenuation layer is hollow to form a vibration attenuation cavity, and damping particles are filled in the vibration attenuation cavity.
3. The copper-clad aluminum conductor extruded insulation power cable as claimed in claim 2, wherein a reinforcing rib is arranged in the vibration damping cavity, and the reinforcing rib is connected with two opposite side surfaces of the vibration damping cavity.
4. The copper-clad aluminum conductor extruded insulation power cable as claimed in claim 2, wherein the filling shielding layer is provided with a damping unit, and the damping unit comprises a damping sleeve and damping particles filled in the damping sleeve.
5. The copper-clad aluminum conductor extruded insulation power cable according to claim 4, wherein the damping unit is fixedly connected with a damping vibration attenuation layer, a through hole is arranged on the side surface of the damping vibration attenuation layer close to the filling shielding layer, and the inside of the damping sleeve is communicated with the vibration attenuation cavity through the through hole.
6. The copper-clad aluminum conductor extruded insulation power cable as claimed in claim 4, wherein the damping sleeve is in a long strip shape, and the damping sleeve extends along the axis of the sheath.
7. The copper-clad aluminum conductor extruded insulation power cable as claimed in claim 1, wherein the thickness of the braided mesh shielding layer and the thickness of the filling shielding layer are 1: 1-3.
8. The copper-clad aluminum conductor extruded insulation power cable of claim 1, wherein the metal on the surface of the electromagnetic shielding fiber is copper, silver or nickel, and the polymer fiber is polyester fiber, polyacrylonitrile fiber or polyolefin elastic fiber.
9. The extruded and insulated power cable with the copper-clad aluminum conductor according to claim 1, wherein the shielding layer of the woven mesh is a nickel-plated steel wire mesh, and the weaving density of the nickel-plated steel wire mesh is not less than 85%.
10. The copper-clad aluminum conductor extrusion-insulated power cable according to claim 1, wherein the flame-retardant filler is glass fiber cotton, the materials of the insulating inner layer, the first insulating layer and the second insulating layer are cross-linked polyethylene or polyvinyl chloride, and the material of the outer protective layer is polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095990.1A CN112908549A (en) | 2021-01-25 | 2021-01-25 | Copper clad aluminum conductor extruded insulation power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110095990.1A CN112908549A (en) | 2021-01-25 | 2021-01-25 | Copper clad aluminum conductor extruded insulation power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112908549A true CN112908549A (en) | 2021-06-04 |
Family
ID=76118777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110095990.1A Pending CN112908549A (en) | 2021-01-25 | 2021-01-25 | Copper clad aluminum conductor extruded insulation power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112908549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496364A (en) * | 2022-01-21 | 2022-05-13 | 福建成田科技有限公司 | Photovoltaic copper clad aluminum power cable |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074080A1 (en) * | 1999-06-02 | 2000-12-07 | Composite Materials, L.L.C. | An article shielded against emi and rfi |
| US20160365176A1 (en) * | 2015-06-15 | 2016-12-15 | Paul J. Wagner | Composite high performance cables |
| CN206819780U (en) * | 2017-06-16 | 2017-12-29 | 江西吉恩重工有限公司 | A kind of power cable with function of seismic resistance |
| CN207503707U (en) * | 2017-12-11 | 2018-06-15 | 大庆交联电缆有限公司 | A kind of subway tunnel Copper core power cable |
| CN207852341U (en) * | 2017-12-15 | 2018-09-11 | 南昌新华电缆有限公司 | A kind of anti-extrusion composite cable of cable |
| CN108717880A (en) * | 2018-07-12 | 2018-10-30 | 韩玉权 | A kind of anti-interference buffer-type composite optical cable |
| CN208889389U (en) * | 2018-10-17 | 2019-05-21 | 江苏金桥线缆有限公司 | One kind surpassing five class utp cables |
| CN211087969U (en) * | 2019-11-20 | 2020-07-24 | 杭州海拓电子有限公司 | Low-smoke halogen-free flame-retardant control cable |
| CN111883297A (en) * | 2020-08-06 | 2020-11-03 | 安徽环宇电缆集团有限公司 | Cable with electromagnetic wave shielding function |
-
2021
- 2021-01-25 CN CN202110095990.1A patent/CN112908549A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074080A1 (en) * | 1999-06-02 | 2000-12-07 | Composite Materials, L.L.C. | An article shielded against emi and rfi |
| US20160365176A1 (en) * | 2015-06-15 | 2016-12-15 | Paul J. Wagner | Composite high performance cables |
| CN206819780U (en) * | 2017-06-16 | 2017-12-29 | 江西吉恩重工有限公司 | A kind of power cable with function of seismic resistance |
| CN207503707U (en) * | 2017-12-11 | 2018-06-15 | 大庆交联电缆有限公司 | A kind of subway tunnel Copper core power cable |
| CN207852341U (en) * | 2017-12-15 | 2018-09-11 | 南昌新华电缆有限公司 | A kind of anti-extrusion composite cable of cable |
| CN108717880A (en) * | 2018-07-12 | 2018-10-30 | 韩玉权 | A kind of anti-interference buffer-type composite optical cable |
| CN208889389U (en) * | 2018-10-17 | 2019-05-21 | 江苏金桥线缆有限公司 | One kind surpassing five class utp cables |
| CN211087969U (en) * | 2019-11-20 | 2020-07-24 | 杭州海拓电子有限公司 | Low-smoke halogen-free flame-retardant control cable |
| CN111883297A (en) * | 2020-08-06 | 2020-11-03 | 安徽环宇电缆集团有限公司 | Cable with electromagnetic wave shielding function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496364A (en) * | 2022-01-21 | 2022-05-13 | 福建成田科技有限公司 | Photovoltaic copper clad aluminum power cable |
| CN114496364B (en) * | 2022-01-21 | 2023-07-28 | 厦门显兴科技有限公司 | Photovoltaic copper-clad aluminum power cable |
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Application publication date: 20210604 |
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| RJ01 | Rejection of invention patent application after publication |