CN114724763A - Power transmission cable and manufacturing method thereof - Google Patents
Power transmission cable and manufacturing method thereof Download PDFInfo
- Publication number
- CN114724763A CN114724763A CN202210245684.6A CN202210245684A CN114724763A CN 114724763 A CN114724763 A CN 114724763A CN 202210245684 A CN202210245684 A CN 202210245684A CN 114724763 A CN114724763 A CN 114724763A
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- Prior art keywords
- power transmission
- transmission cable
- cooling
- molded line
- layer
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Classifications
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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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
- H01B7/425—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid the construction being bendable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/10—Insulating conductors or cables by longitudinal lapping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
-
- 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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cable manufacturing, in particular to a power transmission cable and a manufacturing method of the power transmission cable. The electric power transmission cable comprises molded conductors and cooling hoses, wherein the molded conductors and the cooling hoses are arranged to be a plurality of, the number of the cooling hoses is equal to the number of the molded conductors, and the molded conductors are configured to transmit electric charges. The molded line conductors and the cooling hoses are arranged alternately, the plurality of molded line conductors and the plurality of cooling hoses are arranged together in a surrounding mode to form a whole circle, cooling liquid flows into the cooling hoses, and the cooling hoses are configured to reduce the temperature of the molded line conductors. The power transmission cable is simple in structure, the temperature of the molded line conductor can be reduced, the current-carrying capacity of the cable is increased, the service life of the power transmission cable is prolonged, the safety performance is improved, and the cost is saved. The manufacturing method of the power transmission cable is simple in steps and beneficial to batch production of the power transmission cable.
Description
Technical Field
The invention relates to the technical field of cable manufacturing, in particular to a power transmission cable and a manufacturing method of the power transmission cable.
Background
With the gradual increase of the power of the offshore wind turbine, the conductor section of the power transmission cable for connecting the offshore wind turbine is also larger and larger. Because the increase of power inevitably increases the load of the power transmission cable, the smaller the conductor section of the power transmission cable is, the more serious the heat generation is, and finally the operating temperature of the power transmission cable is exceeded, so that the power transmission cable fails, at present, the cable with a larger size needs to be selected to reduce the conductor resistance, and the heat dissipation of the conductor is increased to ensure the operating safety of the power transmission cable.
In the prior art, the cross-sectional area of a conductor is usually increased by adopting a power transmission cable with a larger diameter size, so that the conductor resistance of the power transmission cable is reduced.
Therefore, it is desirable to design a power transmission cable and a method for manufacturing the power transmission cable to solve the technical problems in the prior art.
Disclosure of Invention
The invention aims to provide a power transmission cable which is simple in structure, can reduce the temperature of a molded line conductor, increase the current-carrying capacity of the cable, prolong the service life of the transmission cable, improve the safety performance and save the cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides a power transmission cable comprising:
the molded line conductors are arranged in a plurality and are configured to transmit electric charges;
the cooling hoses are also arranged in a plurality of numbers, the number of the cooling hoses is equal to that of the molded line conductors, the molded line conductors and the cooling hoses are alternately arranged, and the molded line conductors and the cooling hoses are jointly surrounded to form a whole circle; the cooling hose is internally communicated with a cooling liquid and is configured to reduce the temperature of the molded line conductor.
As an optional technical scheme of the power transmission cable, a netted polypropylene fiber braided layer is coated outside the cooling hose.
As an optional technical scheme of the power transmission cable, the weaving density of the polypropylene fiber braided layer is 95% -99%.
As an optional technical solution of the power transmission cable, the power transmission cable includes a wrapping tape, and the wrapping tape is wound around the molded line conductor and the outer peripheral side of the cooling hose.
As an optional technical solution of the power transmission cable, the power transmission cable includes a conductor shielding layer, an insulating layer and an insulating shielding layer;
the conductor shielding layer is coated on the outer peripheral side of the wrapping tape, and the insulating layer is coated on the outer peripheral side of the conductor shielding layer; the insulation shielding layer is coated on the periphery of the insulation layer.
As an optional technical solution of the power transmission cable, the power transmission cable includes a metal layer, and the metal layer is coated on the outer peripheral side of the insulation shielding layer.
As an optional technical scheme of the manufacturing method of the power transmission cable, the metal layer is made of copper, the thickness of the metal layer is 0.05mm-0.15mm, and the width of the metal layer is not smaller than 35 mm.
As an optional technical solution of the power transmission cable, the power transmission cable includes an outer protection layer, and the outer protection layer is coated on the outer peripheral side of the metal layer.
As an optional technical scheme of the power transmission cable, the molded line conductor is made of copper or aluminum, and the cooling hose is made of cross-linked polyethylene.
Another objective of this embodiment is to provide a method for manufacturing a power transmission cable, which has simple steps and is beneficial to mass production of the power transmission cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a manufacturing method of a power transmission cable, which is used for preparing the power transmission cable and comprises the following steps:
s1, preparing a molded line conductor by adopting a pressing and meshing mode, preparing a cooling hose by adopting an injection molding mode, and coating a polypropylene fiber braided layer on the outer side of the cooling hose;
s2, alternately arranging the molded line conductor and the cooling hose coated with the polypropylene fiber braided layer, performing cabling and stranding by using a cabling machine, and winding a wrapping tape on the outer peripheral sides of the molded line conductor and the cooling hose;
s3, respectively and sequentially coating a conductor shielding layer, an insulating layer and an insulating shielding layer on the outer periphery of the wrapping tape;
s4, coating a metal layer on the outer periphery side of the insulation shielding layer;
and S5, coating an outer protection layer on the periphery of the metal layer.
The invention has the beneficial effects that:
according to the power transmission cable provided by the invention, the plurality of molded line conductors and the plurality of cooling hoses are alternately arranged, the molded line conductors and the cooling hoses are jointly surrounded to form a whole circle, and the cooling liquid is introduced into the cooling hoses, so that the cooling liquid can realize internal circulation in the power transmission cable, the heat of the molded line conductors can be taken away by the cooling liquid, the temperature of the molded line conductors is reduced, the current-carrying capacity of the cable is increased, the service life is prolonged, and the safety performance of the power transmission cable is improved. Meanwhile, the consumption of the molded line conductor is reduced, and the purpose of saving cost is achieved.
The invention also provides a manufacturing method of the power transmission cable, which can reduce the temperature of the wire conductor in the power transmission cable, improve the stability and reliability of the power transmission cable and prolong the service life of the power transmission cable. And the manufacturing method of the power transmission cable has simple steps and is beneficial to the batch production of the power transmission cable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural view of a power transmission cable provided in an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Reference numerals
100. A molded line conductor; 200. a cooling hose; 210. a polypropylene fiber braided layer; 300. wrapping a tape; 400. a conductor shield layer; 500. an insulating layer; 600. an insulating shield layer; 700. a metal layer; 800. an outer jacket.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1-2, the present embodiment provides a power transmission cable that can be connected to an offshore high power wind turbine for transmitting power to the offshore high power wind turbine. Of course, the power transmission cable in this embodiment may also be applied to other high-power devices, and this embodiment does not limit this.
The power transmission cable of the present embodiment includes the profile conductors 100 and the cooling hoses 200, each of the profile conductors 100 and the cooling hoses 200 is provided in number, and the number of the cooling hoses 200 is equal to the number of the profile conductors 100, and the profile conductors 100 are configured to transmit electric charges. The molded line conductors 100 and the cooling hoses 200 are alternately arranged, a plurality of molded line conductors 100 and a plurality of cooling hoses 200 are jointly surrounded to form a whole circle, cooling liquid is filled in the cooling hoses 200, and the cooling hoses 200 are configured to reduce the temperature of the molded line conductors 100.
For example, the molded line conductor 100 and the cooling hose 200 may adopt a two-split, four-split or eight-split structure, that is, the molded line conductor 100 and the cooling hose 200 may be respectively set to 2, 4 or 8, then the molded line conductor 100 and the cooling hose 200 are alternately set, then the molded line conductor 100 and the cooling hose 200 are stranded by cabling through a cabling machine, and then the wrapping tape 300 is wound on the outer peripheral sides of the molded line conductor 100 and the cooling hose 200, so that the molded line conductor 100 and the cooling hose 200 can be closely attached to each other, and further, the cooling liquid in the cooling hose 200 can effectively take away heat in the molded line conductor 100, so as to achieve the purpose of reducing the temperature of the molded line conductor 100. Of course, the operator can set different numbers of molded line conductors 100 and cooling hoses 200 according to actual requirements, for example, the number may be set to 3, 5, and so on, and thus, no further description is provided here. It should be noted that, no matter how many the number of the molded line conductors 100 and the number of the cooling hoses 200 are set, it is required to ensure that the number of the molded line conductors 100 is consistent with the number of the cooling hoses 200, so that each cooling hose 200 can be in full contact with the molded line conductor 100, and further, the heat exchange efficiency between the cooling hose 200 and the molded line conductor 100 is improved, and the safety performance of the power transmission cable is improved.
Further, seawater can be selected for use as the cooling liquid in this embodiment, so that when the power transmission cable is connected with the offshore wind turbine, an operator can extract seawater in the ocean to enter the cooling hose 200 at any time and any place, and further the seawater can perform internal circulation inside the cable, so as to take away heat in the molded line conductor 100, reduce the temperature of the molded line conductor 100, prolong the service life of the power transmission cable, and improve safety. In addition, the operator may select another liquid as the cooling liquid, as long as the initial temperature of the cooling liquid is lower than the temperature of the molded line conductor 100, and the cooling liquid has characteristics of no toxicity, no harm, no corrosion, and the like, which is not limited in this embodiment.
The molded line conductor 100 in this embodiment is made of copper or aluminum, and the operator can prepare the molded line conductor 100 by using other alloy metals, such as aluminum alloy, copper alloy, metal nickel, and metal silver, according to actual requirements. Cooling hose 200 adopts the crosslinked polyethylene material to make, the crosslinked polyethylene material has light in weight, corrosion-resistant, acid and alkali-resistance, cold-resistant (55 ℃ under zero), characteristics such as ageing-resistant, through experimental verification, the burst pressure of cooling hose 200 who adopts the crosslinked polyethylene material preparation is more than 10MPa, consequently adopt this material can make power transmission cable light more, and then be favorable to reducing transportation, storage and installation cost, can also improve power transmission cable's intensity and life.
Compared with the prior art, this power transmission cable that this implementation provided, through setting up a plurality of molded lines conductor 100 and a plurality of cooling hose 200 in turn, and make molded lines conductor 100 and cooling hose 200 enclose jointly and establish and form a whole circle, through letting in the coolant liquid inside cooling hose 200, and then make the coolant liquid can realize the inner loop inside the cable, thereby make the coolant liquid can take away the heat of molded lines conductor 100, reduce molded lines conductor 100's temperature, increase of service life, the security performance of power transmission cable is improved, reduce molded lines conductor 100's consumptive material simultaneously and use, reach cost-effective purpose, be favorable to power transmission cable's mass production.
Further, as shown in fig. 1 to 2, in the present embodiment, the cooling hose 200 is externally coated with a braided layer 210 of polypropylene fibers in a net shape. The polypropylene fiber braided layer 210 is processed by a 24-spindle braiding machine, the braiding density is 95% -99%, and the braiding angle is 40-50 degrees. The polypropylene fiber braided layer 210 can protect the cooling hose 200 to a certain extent, can improve the strength of the cooling hose 200, and avoids the risk of explosion of the cooling hose 200 in the use process of the cooling hose 200. After a plurality of tests, the cooling hose 200 reinforced by the polypropylene fiber braided layer 210 can normally work under the water pressure of 35MPa, the bursting pressure reaches more than 120MPa, and the safety performance of the power transmission cable is further improved.
In this embodiment, as shown in fig. 1-2, the power transmission cable includes a conductor shield 400, an insulation layer 500, and an insulation shield 600. The conductor shielding layer 400 is coated on the outer peripheral side of the wrapping tape 300, and the insulating layer 500 is coated on the outer peripheral side of the conductor shielding layer 400; the insulating shield layer 600 covers the outer circumferential side of the insulating layer 500. The conductor shielding layer 400, the insulating layer 500 and the insulating shielding layer 600 are extruded together by an extruder, so that the working efficiency is improved.
In the present embodiment, as shown in fig. 1 to 2, the power transmission cable includes a metal layer 700, and the metal layer 700 is coated on the outer circumferential side of the insulation shield layer 600. The metal layer 700 is soft copper belt with thickness of 0.1mm and width of more than 35mm, and the tensile strength of the soft copper belt should be 235N/mm2-315N/mm2The elongation should be greater than 15%. Of course, in other embodiments of the present invention, the operator may also use other metal materials as the metal layer 700, such as a soft aluminum tape, a tin tape, and so on, which are not described herein again. Further, the operator wraps the periphery side of the insulation shielding layer 600 with the metal layer 700 by using a wrapping machine, so that the covering rate between the soft copper strips is more than 25% during wrapping, and the risk of bag leakage is avoided.
Further, with reference to fig. 1-2, the power transmission cable in this embodiment includes an outer sheath 800, the outer sheath 800 covers the outer periphery of the metal layer 700, and the outer sheath 800 can protect the metal layer 700 to a certain extent, so as to improve the mechanical strength and the safety performance of the power transmission cable. Illustratively, the outer sheath 800 in this embodiment is made of a CPE (chlorinated polyethylene) material, and the CPE material not only has good mechanical load resistance, but also has characteristics of flame retardancy, oil resistance, ultraviolet ray resistance, corrosion resistance, smoke resistance, low temperature resistance, torsion resistance, and the like.
The embodiment also provides a manufacturing method of the power transmission cable, which is used for preparing the power transmission cable and mainly comprises the following steps:
s1, preparing the molded line conductor 100 by adopting a pressing and meshing mode, preparing the cooling hose 200 by adopting an injection molding mode, and coating the polypropylene fiber braided layer 210 on the outer side of the cooling hose 200. The molded line conductor 100 prepared by press-fitting and the cooling hose 200 prepared by injection molding can reduce the generation of a gap, thereby improving the reliability and stability of the power transmission cable.
S2, alternately arranging the molded line conductor 100 and the cooling hose 200 coated with the polypropylene fiber braid 210, cabling and twisting the molded line conductor 100 and the cooling hose 200 by using a cabling machine, and winding the wrapping tape 300 around the outer peripheral sides of the molded line conductor 100 and the cooling hose 200. The tape 300 enables the molded line conductor 100 and the cooling hose 200 to be tightly attached, so that the heat transfer efficiency between the cooling hose 200 and the molded line conductor 100 is improved, and the safety of the power transmission cable is improved.
S3, the conductor shield layer 400, the insulating layer 500, and the insulating shield layer 600 are sequentially coated on the outer peripheral side of the wrapping tape 300.
S4, coating the metal layer 700 on the outer periphery of the insulation shield layer 600;
s5, the outer sheath 800 is coated on the outer periphery of the metal layer 700.
By adopting the manufacturing method of the power transmission cable, the temperature of the wire conductor 100 in the power transmission cable can be reduced, the stability and reliability of the power transmission cable can be improved, and the service life of the power transmission cable can be prolonged. The manufacturing method of the power transmission cable is simple in steps and beneficial to batch production of the power transmission cable.
It is to be understood that the foregoing is only illustrative of the preferred embodiments of the present invention and that the technical principles herein may be applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
It is noted that throughout the description herein, references to the description of "some embodiments," "other embodiments," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A power transmission cable, comprising:
the molded line conductors (100) are arranged in a plurality, and the molded line conductors (100) are configured to transmit electric charges;
the number of the cooling hoses (200) is also multiple, the number of the cooling hoses (200) is equal to the number of the molded line conductors (100), the molded line conductors (100) and the cooling hoses (200) are alternately arranged, and the molded line conductors (100) and the cooling hoses (200) jointly encircle to form a whole circle; the cooling hose (200) is internally communicated with a cooling liquid, and the cooling hose (200) is configured to reduce the temperature of the molded line conductor (100).
2. The power transmission cable according to claim 1, wherein the cooling hose (200) is externally coated with a braided layer (210) of polypropylene filaments in a mesh shape.
3. The power transmission cable according to claim 2, wherein the braided layer (210) of polypropylene filaments has a braiding density of 95-99%.
4. The power transmission cable of claim 1, comprising a wrapping tape (300), wherein the wrapping tape (300) is wound around the outer circumferential sides of the profile conductor (100) and the cooling hose (200).
5. An electric power transmission cable according to claim 4, characterized in that the electric power transmission cable comprises a conductor shield (400), an insulating layer (500) and an insulating shield (600);
the conductor shielding layer (400) is coated on the outer peripheral side of the wrapping tape (300), and the insulating layer (500) is coated on the outer peripheral side of the conductor shielding layer (400); the insulation shielding layer (600) covers the periphery of the insulation layer (500).
6. The power transmission cable of claim 5, comprising a metal layer (700), wherein the metal layer (700) is wrapped around an outer circumference of the dielectric shield (600).
7. The power transmission cable according to claim 6, wherein the metal layer (700) is made of a copper material, and the metal layer (700) has a thickness of 0.05mm to 0.15mm and a width of not less than 35 mm.
8. The power transmission cable according to claim 6, comprising an outer sheath (800), wherein the outer sheath (800) is wrapped around an outer circumference of the metal layer (700).
9. The power transmission cable according to any one of claims 1 to 8, wherein the profile conductor (100) is made of copper or aluminum and the cooling hose (200) is made of cross-linked polyethylene.
10. A method for manufacturing a power transmission cable, for preparing a power transmission cable according to any one of claims 1 to 9, comprising the steps of:
s1, preparing a molded line conductor (100) by adopting a pressing and meshing mode, preparing a cooling hose (200) by adopting an injection molding mode, and coating a polypropylene fiber braided layer (210) on the outer side of the cooling hose (200);
s2, alternately arranging the molded line conductor (100) and the cooling hose (200) coated with the polypropylene wire woven layer (210), stranding by adopting a cabling machine, and winding a wrapping tape (300) on the outer peripheral sides of the molded line conductor (100) and the cooling hose (200);
s3, respectively and sequentially coating a conductor shielding layer (400), an insulating layer (500) and an insulating shielding layer (600) on the outer periphery side of the wrapping tape (300);
s4, coating a metal layer (700) on the outer periphery side of the insulation shielding layer (600);
and S5, coating an outer protection layer (800) on the outer periphery of the metal layer (700).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245684.6A CN114724763A (en) | 2022-03-10 | 2022-03-10 | Power transmission cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245684.6A CN114724763A (en) | 2022-03-10 | 2022-03-10 | Power transmission cable and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN114724763A true CN114724763A (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210245684.6A Pending CN114724763A (en) | 2022-03-10 | 2022-03-10 | Power transmission cable and manufacturing method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06231952A (en) * | 1993-02-08 | 1994-08-19 | Fuji Electric Co Ltd | Current lead of superconducting magnet device |
| JPH07211155A (en) * | 1994-01-07 | 1995-08-11 | Furukawa Electric Co Ltd:The | Power cable line |
| CN104167252A (en) * | 2014-09-02 | 2014-11-26 | 中天科技装备电缆有限公司 | High-voltage power cable for rail transit vehicle and technological process of high-voltage power cable for rail transit vehicle |
| CN106024125A (en) * | 2016-07-18 | 2016-10-12 | 远东电缆有限公司 | Smart energy, power and communication composite cable and production process thereof |
| DE102019208685A1 (en) * | 2019-06-14 | 2020-12-17 | Vitesco Technologies GmbH | Power cables |
| CN112863755A (en) * | 2021-03-04 | 2021-05-28 | 远东电缆有限公司 | High current-carrying capacity low pressure power cable under high temperature environment |
-
2022
- 2022-03-10 CN CN202210245684.6A patent/CN114724763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06231952A (en) * | 1993-02-08 | 1994-08-19 | Fuji Electric Co Ltd | Current lead of superconducting magnet device |
| JPH07211155A (en) * | 1994-01-07 | 1995-08-11 | Furukawa Electric Co Ltd:The | Power cable line |
| CN104167252A (en) * | 2014-09-02 | 2014-11-26 | 中天科技装备电缆有限公司 | High-voltage power cable for rail transit vehicle and technological process of high-voltage power cable for rail transit vehicle |
| CN106024125A (en) * | 2016-07-18 | 2016-10-12 | 远东电缆有限公司 | Smart energy, power and communication composite cable and production process thereof |
| DE102019208685A1 (en) * | 2019-06-14 | 2020-12-17 | Vitesco Technologies GmbH | Power cables |
| CN112863755A (en) * | 2021-03-04 | 2021-05-28 | 远东电缆有限公司 | High current-carrying capacity low pressure power cable under high temperature environment |
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