CN112735667A - Shielding monitoring type cable for coal mine area and using method thereof - Google Patents
Shielding monitoring type cable for coal mine area and using method thereof Download PDFInfo
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- CN112735667A CN112735667A CN202011530554.4A CN202011530554A CN112735667A CN 112735667 A CN112735667 A CN 112735667A CN 202011530554 A CN202011530554 A CN 202011530554A CN 112735667 A CN112735667 A CN 112735667A
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- cable
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- shielding layer
- coal mine
- fixedly connected
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- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 239000010949 copper Substances 0.000 claims abstract description 24
- WBLJAACUUGHPMU-UHFFFAOYSA-N copper platinum Chemical compound [Cu].[Pt] WBLJAACUUGHPMU-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 29
- 239000003063 flame retardant Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 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 description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 208000013935 Electric injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 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
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1091—Screens specially adapted for reducing interference from external sources with screen grounding means, e.g. drain wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/10—Screens specially adapted for reducing interference from external sources
- H01B11/1033—Screens specially adapted for reducing interference from external sources composed of a wire-braided conductor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a shielding monitoring type cable for a coal mine area and a using method thereof. According to the invention, the guide ball, the copper mesh shielding layer and the copper platinum shielding layer are arranged, so that the wires in the cable body can be sufficiently shielded and protected, when the electromagnetic interference cable is interfered, the cable body firstly blocks the interference electromagnetism through the copper mesh shielding layer, the electromagnetism is directly poured out of the equipment through the guide ball, so that the electromagnetic interference cable is guided to the ground, a part of the electromagnetism passing through the copper mesh shielding layer is absorbed by the copper platinum shielding layer again and then discharged through the equipment grounding port, and the shielding effect of the equipment is greatly improved in a two-layer shielding mode, so that the use efficiency of the equipment is effectively improved.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a shielding monitoring type cable for a coal mine area and a using method thereof.
Background
The shielding monitoring cable is a transmission line which wraps a signal line by using a metal mesh braid, the braid is generally red copper or tin-plated copper, shielding is to ensure the transmission performance of the system in an electromagnetic interference environment, the anti-interference performance comprises two aspects, namely the capability of resisting external electromagnetic interference and the capability of radiating electromagnetic interference outwards by the system, theoretically, a metal material shielding layer is coated on the outer surfaces of the cable and a connecting piece, and unnecessary electromagnetic waves can be effectively filtered, and the method adopted by most shielding systems is also adopted.
For the shielding monitoring type cable, it is not enough to have a metal shielding layer alone, and more importantly, the shielding layer must be grounded completely and well, so as to effectively guide the interference current into the ground, the existing coal mine shielding monitoring type cable mostly adopts the design of an insulating layer plus a shielding layer plus a conducting wire, although the conducting wire can be better shielded and protected, the shielding capability is limited, when the cable is used in a complex coal mine area, the conducting wire is still easily interfered by electromagnetism, the normal work of the cable is influenced, and the work efficiency of the equipment is influenced.
Disclosure of Invention
The invention aims to provide a shielding monitoring type cable for a coal mine area and a using method thereof, and aims to solve the problems that the existing shielding monitoring type cable for the coal mine area mostly adopts a design of an insulating layer, a shielding layer and a conducting wire, although the conducting wire can be well shielded and protected, the shielding capability is limited, and the conducting wire is easily interfered by electromagnetism when the cable is used in a complex coal mine area, so that the normal operation of equipment is influenced.
In order to achieve the purpose, the invention provides the following technical scheme that the cable for shielding and monitoring the coal mine area comprises a cable body, wherein a rubber protective sleeve is arranged on the outermost layer of the cable body, a protective sleeve is fixedly connected inside the rubber protective sleeve, a copper mesh shielding layer is fixedly connected inside the protective sleeve, a blocking layer is fixedly connected inside the copper mesh shielding layer, a copper-platinum shielding layer is fixedly connected inside the blocking layer, and a first insulating layer is fixedly connected inside the copper-platinum shielding layer.
Preferably, the first insulating layer is internally provided with a filling, and the first insulating layer is movably connected with a cable.
Preferably, a wire core is arranged on the innermost layer of the cable, and a second insulating layer is arranged on the outer side of the wire core.
Preferably, the outer side of the second insulating layer is fixedly connected with a pressure resistant layer, and the outer side of the pressure resistant layer is fixedly connected with a flame-retardant wire sleeve.
Preferably, the surface of the rubber protective sleeve is provided with a groove, and the inside of the groove is fixedly connected with the flow guide ball.
Preferably, the surface of the rubber protective sleeve is fixedly connected with a supporting soft block, and the surface of the supporting soft block is fixedly connected with a protective pad.
Preferably, one end of the cable body is movably connected with a fixing frame, and one side of the fixing frame is provided with a threading hole.
The cable is used by installing and connecting a cable body with the threading holes arranged on the surface of the fixing frame, and the protective pad on the surface of the rubber protective sleeve is used for fixing the threading holes, so that the installation and the fixation of the cable body are completed, and the cable is ensured to be more regular when in use; in daily use, the inside can receive external electromagnetic influence of cable body, and the cable body at this moment at first carries out preliminary check through the copper mesh shielding layer to the electromagnetism of interference and keeps off, passes through the direct equipment of pouring out of water conservancy diversion ball with the electromagnetism, and the direction earth, partly electromagnetism that passes copper mesh shielding layer 4 can be carried out the secondary absorption by copper platinum shielding layer, and the ground connection mouth department at equipment is discharged.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the guide ball, the copper mesh shielding layer and the copper platinum shielding layer are arranged, so that the wires in the cable body can be sufficiently shielded and protected, when an electromagnetic interference cable is used, the cable body firstly screens interference electromagnetism through the copper mesh shielding layer, the electromagnetism is directly poured out of the equipment through the guide ball, so that the electromagnetic interference cable is guided to the ground, a part of the electromagnetism penetrating through the copper mesh shielding layer can be absorbed by the copper platinum shielding layer again and then is discharged through the equipment grounding port, the shielding effect of the equipment is greatly improved in a two-layer shielding mode, the use efficiency of the equipment is effectively improved, and the condition that the work efficiency of the equipment is slowed down due to the influence of the electromagnetism is avoided.
(2) According to the cable body fixing device, the fixing frame, the supporting soft blocks and the protective pad are arranged, so that the use efficiency of the cable body can be greatly improved when the cable body is used, the cable body is directly installed into the fixing frame to fix the cable, the protective pad can effectively protect the cable scattered on the ground in the daily use process, meanwhile, when the cable body is connected with the fixing frame, the cable can be directly clamped in the threading hole, the installation speed is greatly improved, and the practicability of equipment design is embodied.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic view of the rubber boot structure of the present invention;
FIG. 3 is a schematic view of the fixing frame of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 5 is a schematic view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. a cable body; 2. a rubber protective sleeve; 3. a protective sleeve; 4. a copper mesh shielding layer; 5. a barrier layer; 6. a copper platinum shielding layer; 7. a first insulating layer; 8. a cable; 9. a wire core; 10. a second insulating layer; 11. a pressure resistant layer; 12. a flame-retardant wire sleeve; 13. a groove; 14. a flow guide ball; 15. supporting the soft block; 16. a protective pad; 17. a fixed mount; 18. and (6) threading holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: a shielding monitoring type cable for a coal mine area comprises a cable body 1, wherein a rubber protective sleeve 2 is arranged on the outermost layer of the cable body 1, a protective sleeve 3 is fixedly connected inside the rubber protective sleeve 2, the protective sleeve 3 is operated by wear-resistant rubber, the overall safety of the cable is effectively improved, the cable is prevented from being damaged, a copper mesh shielding layer 4 is fixedly connected inside the protective sleeve 3, the copper mesh shielding layer 4 can effectively block outside electromagnetism, a blocking layer 5 is fixedly connected inside the copper mesh shielding layer 4, the blocking layer 5 can separate the copper mesh shielding layer 4 from the copper platinum shielding layer 6, a copper platinum shielding layer 6 is fixedly connected inside the blocking layer 5, a first insulating layer 7 is fixedly connected inside the copper platinum shielding layer 6, the first insulating layer 7 is an insulating material layer and is mainly used for isolating electric wires to prevent people from electric shock and injury, a supporting soft block 15 is fixedly connected on the surface of the rubber protective sleeve 2, the fixed surface that supports soft piece 15 is connected with the protection pad 16, and the one end swing joint of cable body 1 has mount 17, and through wires hole 18 has been seted up to one side of mount 17, and the inside on first insulation layer 7 is provided with fills, and the inside swing joint on first insulation layer 7 has cable 8.
Further, the innermost layer of the cable 8 is provided with a wire core 9, the outer side of the wire core 9 is provided with a second insulating layer 10, and the second insulating layer 10 can perform insulation protection on the wire core 9 to avoid electric leakage.
Further, the outside fixedly connected with of second insulating layer 10 resists the layer 11, and the fire-retardant line cover 12 of outside fixedly connected with on the layer 11 that resists compression, the better plastic material of resistance to compression of layer 11 adoption can provide effectual protection to sinle silk 9.
Further, recess 13 has been seted up on the surface of rubber protective sheath 2, and recess 13's inside fixed connection water conservancy diversion ball 14, water conservancy diversion ball 14 can carry out timely derivation to the earth magnetism that copper mesh shielding layer 4 received, the effectual anti electromagnetic capability that improves the cable.
When the cable is used, a user firstly installs and connects the cable body 1 with the threading holes 18 formed in the surface of the fixing frame 17, the protective pad 16 on the surface of the rubber protective sleeve 2 is used for fixing with the threading holes 18, the installation and the fixation of the cable body 1 are completed, the cable is ensured to be more regular in use, the service efficiency of the cable is improved, in the daily use process, the inside of the cable body 1 is influenced by external electromagnetism, at the moment, the cable body 1 firstly performs primary blocking on the interfered electromagnetism through the copper mesh shielding layer 4, the electromagnetism is directly poured out of the equipment through the diversion ball 14 and guided to the ground, part of the electromagnetism passing through the copper mesh shielding layer 4 can be secondarily absorbed by the copper platinum shielding layer 6 and is discharged at the ground port of the equipment, and therefore the service efficiency of the equipment is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A shielded monitoring type cable for coal mine areas, comprising a cable body (1), characterized in that: the outmost rubber protective sleeve (2) that is provided with of cable body (1), the inside fixedly connected with lag (3) of rubber protective sleeve (2), the inside fixedly connected with copper mesh shielding layer (4) of lag (3), the inside fixedly connected with barrier layer (5) of copper mesh shielding layer (4), the inside fixedly connected with copper platinum shielding layer (6) of barrier layer (5), the inside fixedly connected with first insulation layer (7) of copper platinum shielding layer (6).
2. A shielded surveillance type cable for a coal mine according to claim 1, wherein: the filling is arranged inside the first insulating layer (7), and a cable (8) is movably connected inside the first insulating layer (7).
3. A shielded surveillance type cable for a coal mine according to claim 2, wherein: the innermost layer of cable (8) is provided with sinle silk (9), the outside of sinle silk (9) is provided with second insulating layer (10).
4. A shielded surveillance type cable for a coal mine according to claim 3, wherein: the outer side of the second insulating layer (10) is fixedly connected with a pressure resistant layer (11), and the outer side of the pressure resistant layer (11) is fixedly connected with a flame-retardant wire sleeve (12).
5. A shielded surveillance type cable for a coal mine according to claim 1, wherein: the surface of the rubber protective sleeve (2) is provided with a groove (13), and a flow guide ball (14) is fixedly connected inside the groove (13).
6. The shielded monitoring cable for coal mine areas according to claim 5, wherein: the surface fixing of rubber protective sheath (2) is connected with supports soft piece (15), the surface fixing who supports soft piece (15) is connected with protection pad (16).
7. A shielded surveillance type cable for a coal mine according to claim 6, wherein: one end of the cable body (1) is movably connected with a fixing frame (17), and one side of the fixing frame (17) is provided with a threading hole (18).
8. The use of a shielded surveillance type cable for a coal mine according to claim 7, wherein: the cable body (1) is installed and connected with the threading holes (18) formed in the surfaces of the fixing frames (17), the protective pads (16) on the surfaces of the rubber protective sleeves (2) are fixed with the threading holes (18), installation and fixation of the cable body (1) are completed, and the cable is guaranteed to be more regular when in use; in daily use, inside can receiving external electromagnetic influence of cable body (1), cable body (1) at this moment at first carries out preliminary check through copper mesh shielding layer (4) to the electromagnetism of interference and keeps off, directly pours equipment with electromagnetism through water conservancy diversion ball (14), and the direction is the ground, and the electromagnetism that partly passes copper mesh shielding layer (4) can be carried out the secondary absorption by copper platinum shielding layer (6), is discharged in the ground connection mouth department of equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011530554.4A CN112735667A (en) | 2020-12-22 | 2020-12-22 | Shielding monitoring type cable for coal mine area and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011530554.4A CN112735667A (en) | 2020-12-22 | 2020-12-22 | Shielding monitoring type cable for coal mine area and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112735667A true CN112735667A (en) | 2021-04-30 |
Family
ID=75605721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011530554.4A Pending CN112735667A (en) | 2020-12-22 | 2020-12-22 | Shielding monitoring type cable for coal mine area and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112735667A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114974746A (en) * | 2022-08-02 | 2022-08-30 | 广州南洋电缆集团有限公司 | Magnesium oxide insulation fire-resistant cable and manufacturing method thereof |
| CN114974719A (en) * | 2022-08-02 | 2022-08-30 | 广州南洋电缆集团有限公司 | Medium-voltage flame-retardant power cable and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274998A (en) * | 2017-06-19 | 2017-10-20 | 南京汉欣电线电缆有限公司 | A kind of cable and signal transmission system |
| CN206758998U (en) * | 2017-06-13 | 2017-12-15 | 齐鲁师范学院 | A kind of novel communication information cable separated time box cupling |
| CN207529689U (en) * | 2017-09-27 | 2018-06-22 | 陈萧 | A kind of aerospace high temperature-resistant cable |
| CN208385072U (en) * | 2018-06-07 | 2019-01-15 | 扬州市金阳光电缆有限公司 | A kind of preferable power cable of hardy type shielding |
| CN209641380U (en) * | 2019-05-20 | 2019-11-15 | 上海上力特种电缆有限公司 | A kind of shielded cable |
| US20200021062A1 (en) * | 2018-07-12 | 2020-01-16 | Cinch Connectors, Inc. | Shielded cable system for the shielding and protection against emi-leakage and impedance control |
| CN210182132U (en) * | 2019-07-27 | 2020-03-24 | 黄明 | Communication cable with good shielding resistance |
| CN211929146U (en) * | 2020-05-27 | 2020-11-13 | 杭州通策电线电缆有限公司 | High electromagnetic shielding communication cable |
-
2020
- 2020-12-22 CN CN202011530554.4A patent/CN112735667A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206758998U (en) * | 2017-06-13 | 2017-12-15 | 齐鲁师范学院 | A kind of novel communication information cable separated time box cupling |
| CN107274998A (en) * | 2017-06-19 | 2017-10-20 | 南京汉欣电线电缆有限公司 | A kind of cable and signal transmission system |
| CN207529689U (en) * | 2017-09-27 | 2018-06-22 | 陈萧 | A kind of aerospace high temperature-resistant cable |
| CN208385072U (en) * | 2018-06-07 | 2019-01-15 | 扬州市金阳光电缆有限公司 | A kind of preferable power cable of hardy type shielding |
| US20200021062A1 (en) * | 2018-07-12 | 2020-01-16 | Cinch Connectors, Inc. | Shielded cable system for the shielding and protection against emi-leakage and impedance control |
| CN209641380U (en) * | 2019-05-20 | 2019-11-15 | 上海上力特种电缆有限公司 | A kind of shielded cable |
| CN210182132U (en) * | 2019-07-27 | 2020-03-24 | 黄明 | Communication cable with good shielding resistance |
| CN211929146U (en) * | 2020-05-27 | 2020-11-13 | 杭州通策电线电缆有限公司 | High electromagnetic shielding communication cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114974746A (en) * | 2022-08-02 | 2022-08-30 | 广州南洋电缆集团有限公司 | Magnesium oxide insulation fire-resistant cable and manufacturing method thereof |
| CN114974719A (en) * | 2022-08-02 | 2022-08-30 | 广州南洋电缆集团有限公司 | Medium-voltage flame-retardant power cable and manufacturing method thereof |
| CN114974719B (en) * | 2022-08-02 | 2022-10-28 | 广州南洋电缆集团有限公司 | Medium-voltage flame-retardant power cable and manufacturing method thereof |
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Application publication date: 20210430 |