CN113066613A - Medium-voltage corrugated copper-clad armored power cable - Google Patents
Medium-voltage corrugated copper-clad armored power cable Download PDFInfo
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- CN113066613A CN113066613A CN202110168536.4A CN202110168536A CN113066613A CN 113066613 A CN113066613 A CN 113066613A CN 202110168536 A CN202110168536 A CN 202110168536A CN 113066613 A CN113066613 A CN 113066613A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
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Images
Classifications
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- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing 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
- 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
- H01B7/20—Metal tubes, e.g. lead sheaths
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
-
- 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
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- Insulated Conductors (AREA)
Abstract
The invention relates to a medium-voltage wrinkle copper sheath armored power cable, which comprises a plurality of stranded conductors, wherein after the stranded conductors are tightly pressed, a semiconductive inner shielding layer is extruded on the tightly pressed stranded conductors, then an insulating layer is extruded, then a semiconductive outer shielding layer is extruded to form an insulating wire core, then copper strip wrapping is carried out on the insulating wire core, three wire cores with red, green and yellow color bands added after wrapping are twisted, filling materials are added at positions which are not round after twisting, so that the cable is round in appearance, then a semiconductive slow-release layer is wrapped, and after the slow-release layer is wrapped, copper sheath welding and line rolling are carried out to form a cable wrinkle copper sheath. The corrugated copper sleeve of the cable effectively improves the heat dissipation performance of the cable, has long service life, is suitable for various natural high-temperature environments, simultaneously improves the mechanical performance and the strength of a cable core, meets the requirement of single-phase fault short-circuit current, can bear certain tension in the vertical direction, and improves the comprehensive performance of products.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a medium-voltage corrugated copper-clad armored power cable.
Background
Along with the frequent occurrence of fire accidents, people continuously deepen the understanding of the fire hazard risk of the electric wire and the electric cable, and the requirements of relevant departments on the performances of fire prevention, flame retardance and the like of the electric wire and the electric cable are higher and higher. The cable fire disaster has the characteristics of fast spread, difficult fire fighting, secondary hazard generation, long recovery time and the like, and can bring huge loss to national economy and the lives and properties of people. Therefore, more severe operating conditions are provided for the flame retardant property, the fireproof property and the safety and reliability of the wires and cables. If the fire-fighting elevator and the fire pump are in fire prevention, explosion prevention, strong overload capacity and long service life, the fire-fighting elevator and the fire pump need to be kept in normal operation for a certain time under the condition of fire, and the cable has special requirements of low smoke, low halogen and low toxicity after combustion, even no smoke, no halogen, no toxicity and the like. The fire-retardant and fire-proof measures of the cable are important means for reducing the fire delay of the cable, and the key point is that the fire-retardant and fire-proof measures are mainly used for preventing fire, and various fire-retardant cables, fire-resistant cables and fire-proof cables are widely applied.
The existing cable fireproof material structure is generally a single-layer structure, the physical impact resistance protection level is low, the function is single, meanwhile, the fireproof capacity of the material is poor, the material cannot resist fire for a long time, the heat insulation performance is poor under the condition that a burning object exists in the surrounding environment, the high-temperature protection effect cannot be achieved, and the cable is damaged to cause danger.
Most of common flame-retardant environment-friendly cables in the market are cables which are insulated by adopting silane crosslinked polyethylene, filled by adopting glass fiber ropes and other similar materials, and sheathed by adopting halogen-free low-smoke flame-retardant polyolefin, and the cables mainly meet the requirement of environmental protection by adopting halogen-free low-smoke materials. However, in the actual production process, since the insulation adopts silane crosslinked polyethylene which is a flammable material, although the flame-retardant material is adopted outside, when a fire disaster occurs in the use process, after the external flame-retardant material burns, the cable insulation can be molten, dropped and burnt, and the safety and reliability of the line can not be ensured; and most of the existing cables are made of materials which generate toxic gases and substances after combustion, so that the cables are not environment-friendly and harm the personal safety.
In view of the above technical problems, improvements are needed.
Disclosure of Invention
The invention provides a medium-voltage corrugated copper-sheathed armored power cable for overcoming the defects in the prior art, which is suitable for power frequency rated voltage of 3.6/6 KV-26/35 KV power transmission and distribution lines for distributing electric energy.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a medium-voltage wrinkle copper-clad armored power cable comprises a plurality of stranded conductors, wherein after the stranded conductors are tightly pressed, a semiconductive inner shielding layer is firstly extruded on the tightly pressed stranded conductors, an insulating layer is extruded on the semiconductive inner shielding layer, then a semiconductive outer shielding layer is extruded on the semiconductive inner shielding layer to form an insulating wire core, then copper strip wrapping is carried out on the insulating wire core, any one of red, green and yellow colored tapes is added below the copper strip before wrapping, after the copper strip wrapping, the wire cores of three red, green and yellow colored tapes added after wrapping are twisted, a filler is added at an unrounded position after twisting, after the cable is rounded in appearance, the semiconductive slow-release layer is wrapped on the cable, and after the slow-release layer is wrapped, the copper-clad is welded and the line is rolled to form a cable wrinkle copper-clad. The corrugated copper sleeve of the cable effectively improves the heat dissipation performance of the cable, has long service life, is suitable for various natural high-temperature environments, simultaneously improves the mechanical performance and the strength of a cable core, meets the requirement of single-phase fault short-circuit current, can bear certain tension in the vertical direction, and improves the comprehensive performance of products. After the cable outer sheath is extruded outside the corrugated copper sleeve, the flame retardant capability of the power cable is effectively improved, the safety of the power cable is also improved, and the cable outer sheath has the advantages of good wear resistance, corrosion resistance, tensile property, high flexibility, light weight, good ageing resistance and good insulativity.
The invention replaces steel belts and lead sleeve armoring, further improves the compression resistance and the bending property, is beneficial to installation and laying after reducing the weight of the cable, improves the transmission efficiency, has no pollution to the environment, also improves the capacity of bearing short-circuit current and the performance of a shielding layer, has good bending property, and is easier to realize the manufacture and installation of the end of the cable.
The utility model provides a medium voltage wrinkle copper sheathing armor power cable, has introduced the structural design of this cable, and material selection and key technology show through producing the performance testing result to product, and this cable has good mechanical properties, compressive property, bending resistance, humidity resistance, wearability, corrosion resistance, tensile resistance and high gentle characteristic, and its light in weight, heat dispersion is good, and is alkaline-resisting, characteristics such as resistant oil.
As a preferable aspect of the present invention, the number of the compressed conductors is 3.
As a preferred aspect of the present invention, the compacted conductor is copper or aluminum.
As a preferable scheme of the invention, the corrugated copper sleeve of the cable is made of copper with the purity of not less than 99.9%.
As an originalIn a preferable scheme of the invention, the elongation of the copper strip of the corrugated copper sleeve of the cable is not less than 35%, and the tensile strength is not less than 250mm2。
In a preferable embodiment of the invention, the outer diameter of the compacted conductor is 6.0-29.8 mm.
In a preferred embodiment of the present invention, the thickness of the semiconductive inner shield layer is 0.7 mm.
In a preferred embodiment of the present invention, the thickness of the insulating layer is 2.5 to 10.5 mm.
In a preferred embodiment of the present invention, the thickness of the semiconductive outer shield layer is 0.8 mm.
As a preferable scheme of the invention, the thickness of the PVC sheath of the cable is 2.4-4.9 mm.
The invention has the beneficial effects that:
1. the corrugated copper sleeve for the cable effectively improves the heat dissipation performance of the cable, has long service life, high reliability, small influence by weather conditions and surrounding environment and stable transmission performance, and is suitable for various natural high-temperature environments. Generally buried in soil or laid in indoor, outdoor, cable trench, pipeline trench, underground soil or tunnel, and can bear the action of mechanical external force;
2. the invention replaces steel belts and lead sleeve armoring, improves the compression resistance and the bending property, is beneficial to installation and laying after reducing the weight of the cable, improves the transmission efficiency, has no pollution to the environment, good ageing resistance, corrosion resistance and good insulativity, meets the requirement of single-phase fault short-circuit current, improves the capacity of bearing the short-circuit current and the performance of a shielding layer, has good bending property, and is easier to realize the manufacture and installation of the end of the cable;
3. the medium-voltage corrugated copper sleeve armored power cable has the advantages that the mechanical performance and the strength of a cable core are improved, certain tensile force in the vertical direction can be borne, and the comprehensive performance of the product is improved. After the corrugated copper sleeve of the cable is extruded outside the outer sheath of the cable, the flame retardant capability of the power cable is effectively improved, the safety of the power cable is also improved, and the cable has good wear resistance, tensile resistance and high flexibility;
4. the invention can be laid in the area with high requirement on water resistance and high underground water level throughout the year, and can be prevented from being invaded by external impurities and moisture and prevent the power cable from being directly damaged by external force;
5. the invention has less maintenance workload;
6. the invention has small electric shock possibility and is not easy to be interfered;
7. the invention has the characteristics of stronger electromagnetic interference resistance, lightning stroke resistance and uniform electric field, improves the power supply quality, and is particularly suitable for places with precise electronic devices, such as computer centers, aerospace monitoring centers, intelligent buildings, high-rise buildings, large supermarkets, hospitals, airports, oil depots, large public entertainment places, public transportation facilities and other important places.
Drawings
Fig. 1 is a side view of a medium voltage corrugated copper sheathed armored power cable according to an embodiment of the invention.
Fig. 2 is a cross-sectional view of a medium voltage corrugated copper sheathed armored power cable according to an embodiment of the invention.
Reference numbers in the figures: the compact type cable comprises a compact conductor 1, a semi-conductive inner shielding layer 2, an insulating layer 3, a semi-conductive outer shielding layer 4, a copper strip 5, a filling material 6, a semi-conductive slow release layer 7, a cable corrugated copper sleeve 8, a cable PVC sheath 9, a red color band 11, a green color band 12 and a yellow color band 13.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 1-2, the medium-voltage corrugated copper-sheathed power cable provided by this embodiment includes a plurality of strands of compressed conductor cable corrugated copper sheaths 1, a semiconductive inner shielding layer cable corrugated copper sheath 2, an insulating layer cable corrugated copper sheath 3, a semiconductive outer shielding layer cable corrugated copper sheath 4, a red ribbon cable corrugated copper sheath 11, a red cable corrugated copper sheath 5, and a red core formed by the cable corrugated copper sheath 5; the surface of the cable corrugated copper sleeve 4 of the semi-conductive outer shielding layer is added with a green colored tape cable corrugated copper sleeve 12, and then the cable corrugated copper sleeve 5 of the cable is wrapped with a copper strip cable corrugated copper sleeve to form a green wire core; the surface of the cable corrugated copper sleeve 4 of the semi-conductive outer shielding layer is added with a yellow colored tape cable corrugated copper sleeve 13, and then the cable corrugated copper sleeve 5 of the cable is wrapped with a copper strip cable corrugated copper sleeve to form a yellow wire core; after the red wire core, the green wire core and the yellow wire core are twisted, a filler cable corrugated copper sleeve 6 and a cable corrugated copper sleeve are added at the gap position of the red wire core, a semi-conductive slow release layer cable corrugated copper sleeve 7 and a cable corrugated copper sleeve are wrapped on the twisted wire core, the surfaces of the semi-conductive slow release layer cable corrugated copper sleeve 7 and the cable corrugated copper sleeve are welded, the corrugated copper sleeve of the corrugated cable copper sleeve 8 and the cable corrugated copper sleeve of the corrugated cable copper sleeve 8 are extruded on the surface of the corrugated copper sleeve of the corrugated cable copper sleeve 8 and the corrugated copper sleeve of the PVC sheath cable 9 and the cable corrugated copper sleeve are extruded.
The corrugated copper sleeve for the cable effectively improves the heat dissipation performance of the cable, has long service life, high reliability, small influence by weather conditions and surrounding environment and stable transmission performance, and is suitable for various natural high-temperature environments. Generally, the soil can bear the action of external mechanical force after being buried in soil or laid in indoor, outdoor, cable trench, pipeline trench, underground soil or tunnel.
The invention replaces steel belts and lead sleeve armoring, improves the compression resistance and the bending property, is beneficial to installation and laying after reducing the weight of the cable, improves the transmission efficiency, has no pollution to the environment, good ageing resistance, corrosion resistance and good insulation property, meets the requirement of single-phase fault short-circuit current, improves the capacity of bearing the short-circuit current and the performance of a shielding layer, has good bending property, and is easier to realize the manufacture and installation of the end of the cable.
Wherein, the filling material 6 is a filling rope which is added for filling a cable into a circle, and the insulating layer 3 is polyethylene insulation;
specifically, the semiconductive slow release layer requires: the thickness of the semi-conductive slow release layer can meet the requirement of compensating thermal expansion in the operation of the cable; the semi-conductive slow release layer is made of elastic materials, and the wrapping is tight and smooth; the semiconductive slow release layer should make the insulating semiconductive shielding layer and the metal shielding layer keep good electrical contact.
The cable corrugated copper sleeve 8 has the following material requirements: the corrugated copper sleeve 8 of the cable is made of copper material with the purity not lower than 99.9 percent: the elongation of the copper strip is not less than 35%, and the tensile strength is not less than 250mm 2; the corrugated copper sleeve 8 of the cable has the functions of protecting the power cable from the invasion of external impurities and moisture and preventing external force from directly damaging the power cable; the medium-voltage corrugated copper sleeve armored power cable has the advantages that the mechanical performance and the strength of a cable core are improved, certain tensile force in the vertical direction can be borne, and the comprehensive performance of the product is improved. After the cable outer sheath is extruded outside the corrugated copper sleeve, the flame retardant capability of the power cable is effectively improved, the safety of the power cable is also improved, and the cable outer sheath has good wear resistance, tensile resistance and high flexibility.
Meets the standard requirements of the copper wire billet for GB/T3952-.
1. A corrugated copper sleeve armored power cable process meter with the rated voltage of 3.6/6 KV;
example two:
a medium-voltage corrugated copper-sheathed armored power cable process meter with rated voltage of 6/6KV and 6/10 KV;
other contents in this embodiment can refer to embodiment one.
Example three:
a medium-voltage corrugated copper sheath armored power cable process meter with rated voltage of 8.7/10KV and rated voltage of 8.7/15 KV;
other contents in this embodiment may refer to the first embodiment or the second embodiment.
Example four:
a medium-voltage corrugated copper-sheathed armored power cable process meter with the rated voltage of 12/20 KV;
other contents in this embodiment may refer to embodiment one, embodiment two, or embodiment three.
Example five:
a medium-voltage corrugated copper-sheathed armored power cable process meter with the rated voltage of 18/30 KV;
other contents in this embodiment may refer to embodiment one, embodiment two, embodiment three, or embodiment four.
Example six:
a medium-voltage corrugated copper-sheathed armored power cable process meter with the rated voltage of 21/35 KV;
other contents in this embodiment may refer to embodiment one, embodiment two, embodiment three, embodiment four, or embodiment five.
Example seven:
a medium-voltage corrugated copper-sheathed armored power cable process meter with the rated voltage of 26/35 KV;
other contents in this embodiment may refer to embodiment one, embodiment two, embodiment three, embodiment four, embodiment five, or embodiment six.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the terms of the compressed conductor 1, the semiconductive inner shield layer 2, the insulating layer 3, the semiconductive outer shield layer 4, the copper strip 5, the filler 6, the semiconductive slow-release layer 7, the corrugated copper sheath 8 of the cable, the PVC sheath 9 of the cable, the red color band 11, the green color band 12, the yellow color band 13, etc., do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a middling pressure wrinkle copper sheathing armor power cable which characterized in that: the cable comprises a plurality of compressed conductors (1), a semiconductive inner shielding layer (2) is extruded on the surface of each compressed conductor (1), an insulating layer (3) is extruded on the surface of the semiconductive inner shielding layer (2), a semiconductive outer shielding layer (4) is extruded on the surface of the insulating layer (3), and a red color ribbon (11) is added on the surface of the semiconductive outer shielding layer (4) and then a red wire core is formed by wrapping a copper strip (5); a green color ribbon (12) is added on the surface of the semi-conductive outer shielding layer (4) and then a green wire core is formed by wrapping a copper strip (5); a yellow color ribbon (13) is added on the surface of the semi-conductive outer shielding layer (4) and then a yellow wire core is formed by wrapping a copper strip (5); after the red wire core, the green wire core and the yellow wire core are twisted, a filling material (6) is added in the gap position of the red wire core, the green wire core and the yellow wire core, a semi-conductive slow release layer (7) is wrapped on the twisted wire core, a corrugated cable copper sleeve (8) is welded on the surface of the semi-conductive slow release layer (7), and a cable PVC sheath (9) is extruded on the surface of the corrugated cable copper sleeve (8).
2. A medium voltage corrugated copper sheathed armoured power cable according to claim 1 characterized in that the number of compressed conductors (1) is 3 strands.
3. A medium voltage corrugated copper sheathed armoured power cable according to claim 1 or 2, characterized in that the compacted conductor (1) is copper or aluminum.
4. A medium voltage corrugated copper sheathed armoured power cable according to claim 1 characterized in that the cable corrugated copper sheath (8) is made of copper material having a purity of not less than 99.9%.
5. A medium voltage corrugated copper sheathed armoured power cable according to claim 4 characterized in that the copper strips elongation of the corrugated copper sheath (8) of the cable should not be less than 35% and the tensile strength not less than 250mm2。
6. The medium voltage corrugated copper sheathed armoured power cable according to claim 1, characterized in that the compacted conductor (1) has an outer diameter of 6.0-29.8 mm.
7. A medium voltage corrugated copper sheathed armoured power cable according to claim 1 characterized in that the thickness of said semi-conductive inner shield layer (2) is 0.7 mm.
8. The medium voltage corrugated copper sheathed armoured power cable according to claim 1, characterized in that the thickness of the insulating layer (3) is 2.5-10.5 mm.
9. A medium voltage corrugated copper sheathed armoured power cable according to claim 1, characterized in that the thickness of the semi-conductive outer shield layer (4) is 0.8 mm.
10. The medium voltage corrugated copper sheathed armoured power cable according to claim 1, characterized in that the thickness of the cable PVC sheath (9) is 2.4-4.9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168536.4A CN113066613A (en) | 2021-02-07 | 2021-02-07 | Medium-voltage corrugated copper-clad armored power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168536.4A CN113066613A (en) | 2021-02-07 | 2021-02-07 | Medium-voltage corrugated copper-clad armored power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113066613A true CN113066613A (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110168536.4A Pending CN113066613A (en) | 2021-02-07 | 2021-02-07 | Medium-voltage corrugated copper-clad armored power cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118335429A (en) * | 2024-05-14 | 2024-07-12 | 江苏泰利电缆有限公司 | A high-toughness halogen-free, low-smoke, flame-retardant power cable and manufacturing method |
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| CN201017713Y (en) * | 2006-12-28 | 2008-02-06 | 朱水良 | 6-35kv ruga highly-flexible power cable |
| CN102969069A (en) * | 2012-12-10 | 2013-03-13 | 南洋电缆集团有限公司 | Waterproof greasy-dirt-resisting 10 kV middle-voltage transducer cable and method |
| CN203562234U (en) * | 2013-11-27 | 2014-04-23 | 湖北龙腾红旗电缆(集团)有限公司 | Fireproof power cable for large-scale oceangoing vessel |
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| CN118335429A (en) * | 2024-05-14 | 2024-07-12 | 江苏泰利电缆有限公司 | A high-toughness halogen-free, low-smoke, flame-retardant power cable and manufacturing method |
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Application publication date: 20210702 |