CN112820467A - Preparation method of 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated conductor - Google Patents
Preparation method of 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated conductor Download PDFInfo
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- CN112820467A CN112820467A CN202110126016.7A CN202110126016A CN112820467A CN 112820467 A CN112820467 A CN 112820467A CN 202110126016 A CN202110126016 A CN 202110126016A CN 112820467 A CN112820467 A CN 112820467A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 14
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
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- 238000000034 method Methods 0.000 claims abstract description 9
- 238000007872 degassing Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
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- 229920005989 resin Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000004698 Polyethylene Substances 0.000 abstract description 4
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- 229920000573 polyethylene Polymers 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 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
- H01B9/008—Power cables for overhead application
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- 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
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
- H01B7/1875—Multi-layer sheaths
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
-
- 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
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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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
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention relates to the technical field of cables, in particular to a preparation method of a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated wire. The method comprises the following steps: preparing a core conductor, winding a profile conductor, coating an inner water-blocking tape, co-extruding an inner shielding layer insulating layer, coating an outer water-blocking tape, preparing an armor layer, and co-extruding an outer insulating layer and an outer shielding layer cross-linked polyethylene insulating sheath; the waterproof steel wire is arranged at the center and is combined with a core wire to form a core conductor, so that the overall tensile strength is improved, the waterproof paste is filled and matched with the waterproof tape to achieve good waterproof performance, the overall anticollision performance is improved by arranging armor, and the hinge polyethylene insulating sheath is arranged to achieve good insulativity and wear resistance.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a preparation method of a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated wire.
Background
Overhead lines are elements for conducting current and transmitting electric energy, play a role of center flow pillars in the transmission of electric energy in distribution networks, operate in the open air throughout the year, not only often bear the action of self tension, but also are affected by various meteorological conditions, and sometimes are eroded by various chemical gases and impurities in the atmosphere, so that the requirement on good conductivity is met, and high mechanical strength is also required.
At present, an overhead line mainly comprises a bare conductor and an insulated conductor, the insulated conductor is suitable for areas with dense urban population, narrow line corridor, areas where the distance between the line for erecting the bare conductor and a building cannot meet the safety requirement, landscaping areas, forest zones, areas with serious dirt and the like, but the core of the conventional insulated conductor generally adopts a compressed round duralumin (LY 8 or LY9 type), a rigid copper (TY type) or an aluminum alloy conductor (LHA or LHB type), the insulation generally adopts polyvinyl chloride (PVC for short), polyethylene (PE for short) and cross-linked polyethylene (XLPE for short), and the common insulation is easy to generate water and an electric tree under the conditions of operation and water contact, so that the aging acceleration of the insulation is caused, and the service life is seriously influenced.
In addition, when an insulated conductor with span of more than 80 meters or larger operation tension is erected for installation, insulation is stripped to expose the conductor, at the moment, rainwater easily permeates from the exposed part of the conductor to the lowest point of the sag of the insulated conductor, and the rainwater contains more impurities, so that the weight of the insulated conductor is increased, the resistance of the conductor is increased after corrosion, the steel-aluminum electrochemical corrosion of the conventional steel-cored aluminum stranded conductor is more serious, the problem is more obvious in a seriously polluted area, and a wire breakage fault is caused in serious conditions.
In view of the above problems, there is a need for an improved overhead wire, which can be used to manufacture a wire with excellent overall performance, to meet the needs of the current times and avoid the above problems.
Disclosure of Invention
The invention aims to provide a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated wire and a preparation method for the insulated wire.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated conductor comprises the following steps:
preparing a core conductor, winding a profile conductor, coating an inner water-blocking tape, co-extruding an inner shielding layer insulating layer, coating an outer water-blocking tape, preparing an armor layer, and co-extruding an outer insulating layer and an outer shielding layer cross-linked polyethylene insulating sheath; specifically, the method comprises the following steps: firstly, winding 2-5 layers of aluminum alloy core wires outside a steel wire to prepare a core conductor, then winding a plurality of layers of profile conductors outside the core conductor, and filling water-blocking paste between the profile conductors and the core wires and between the profile conductors; thirdly, winding the profile conductor with an inner water-blocking tape for wrapping; fourthly, co-extruding an inner shielding layer and an inner insulating layer outside the inner water-blocking tape, fifthly, coating the outer water-blocking tape and the armor layer outside, and finally, carrying out multi-layer co-extrusion of the outer insulating layer, the outer shielding layer and the cross-linked polyethylene insulating sheath.
Preferably, the inner shielding layer is made of a metal resin composite, and when the inner shielding layer and the inner insulating layer are co-extruded, the extrusion rate is 1-1.5m/s, and the extrusion temperature is 85-90 ℃.
Preferably, the degassing process is performed on the internal gas of the inner insulating layer and the inner shielding layer: standing in an open room with a temperature control range of 60-65 deg.C for degassing, wherein the degassing time is controlled at 36-50; and (5) observing the residual condition of the bubbles in the insulation through a silicone oil test.
Preferably, the thickness of the profile conductor is greater than the diameter of the core wire.
Preferably, the steel wire is wound with 3-5 layers of core wires.
Preferably, the profile conductor has a thickness that gradually increases from the inner layer to the outer layer.
Preferably, the profile conductor is provided with 3-5 layers.
Preferably, the total thickness of the profile conductor is greater than the diameter of the core conductor.
Preferably, in the preparation process of the core conductor and the preparation process of the profile conductor outside the core conductor, a twice pre-twisting process is adopted, double-slave pre-twisting of pinch roller pre-twisting and film pressing pre-twisting is adopted, and in cabling, a tension motor is arranged to be connected with a brake disc of an air tension pay-off rack for cabling.
Preferably, in the production process of the molded water-blocking conductor, a wire twisting machine needs to be technically improved, a preforming device is adopted, a water-blocking paste mixture is additionally arranged in front of the preforming device, the conductor firstly passes through the water-blocking paste mixture to be coated on the surface of the conductor, and the water-blocking paste is uniformly coated on the conductor and gaps through the preforming device and a shaping device.
Preferably, when the outer insulating layer, the outer shielding layer and the crosslinked polyethylene insulating sheath are co-extruded in a multi-layer manner, the temperature of each area of the extruder is respectively 75-80 ℃, 82-95 ℃, 100-108 ℃ and 114-120 ℃; the die head temperature is 125-130 ℃.
The invention has the beneficial effects that: the overhead insulated conductor is prepared by the preparation method, and particularly, the steel wire is arranged in the center and is combined with the core conductor to form the core conductor, so that the integral tensile strength is improved, the water-blocking and water-blocking paste is filled and matched with the water-blocking wrapping tape to achieve good waterproof performance, the integral anticollision performance is improved by arranging armor, and the hinge polyethylene insulating sheath is arranged to achieve good insulativity and wear resistance.
Drawings
Fig. 1 shows a schematic structural diagram of the present invention.
In the figure: the cable comprises a 1-core conductor, 2 steel wires, 3-core wires, 4-shaped conductors, 5 water-blocking paste, 6 internal water-blocking wrapping tapes, 7 internal shielding layers, 8 internal insulating layers, 9 external water-blocking wrapping tapes, 10 armor layers, 11 external insulating layers, 12 external shielding layers and 13 cross-linked polyethylene insulating sheaths.
Detailed Description
Further refinements will now be made on the basis of the representative embodiment shown in the figures. It should be understood that the following description is not intended to limit the embodiments to one preferred embodiment. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the embodiments as defined by the appended claims.
In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in accordance with the embodiments. Although these embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments, it is to be understood that these examples are not limiting, such that other examples may be used and that corresponding modifications may be made without departing from the spirit and scope of the embodiments.
Specifically, referring to fig. 1, fig. 1 shows a preparation method of a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated conductor, which includes the following steps:
preparing a core conductor, winding a profile conductor, coating an inner water-blocking tape, co-extruding an inner shielding layer insulating layer, coating an outer water-blocking tape, preparing an armor layer, and co-extruding an outer insulating layer and an outer shielding layer cross-linked polyethylene insulating sheath; specifically, the method comprises the following steps: firstly, winding 2-5 layers of aluminum alloy core wires outside a steel wire to prepare a core conductor, then winding a plurality of layers of profile conductors outside the core conductor, and filling water-blocking paste between the profile conductors and the core wires and between the profile conductors; thirdly, winding the profile conductor with an inner water-blocking tape for wrapping; fourthly, co-extruding an inner shielding layer and an inner insulating layer outside the inner water-blocking tape, fifthly, coating the outer water-blocking tape and the armor layer outside, and finally, carrying out multi-layer co-extrusion of the outer insulating layer, the outer shielding layer and the cross-linked polyethylene insulating sheath.
With respect to the above production method, wherein: the inner shielding layer is made of a metal resin compound, and when the inner shielding layer and the inner insulating layer are co-extruded, the extrusion rate is 1-1.5m/s, and the extrusion temperature is 85-90 ℃. Meanwhile, a degassing process needs to be carried out on the internal gas of the inner insulating layer and the inner shielding layer: standing in an open room with a temperature control range of 60-65 deg.C for degassing, wherein the degassing time is controlled at 36-50; and (5) observing the residual condition of the bubbles in the insulation through a silicone oil test.
In the preparation process of the core conductor and the preparation process of the profile conductor outside the core conductor, two-time pre-twisting process is needed, double-slave pre-twisting of pinch roller pre-twisting and film pressing pre-twisting is adopted, and in cabling, a tension motor is arranged to be connected with a brake disc of an air tension pay-off rack for cabling.
When the outer insulating layer, the outer shielding layer and the crosslinked polyethylene insulating sheath are co-extruded in a multi-layer manner, the temperature of each area of the extruder is respectively 75-80 ℃, 82-95 ℃, 100-108 ℃ and 114-120 ℃; the die head temperature is 125-130 ℃.
About the overhead insulated wire that blocks water of above-mentioned 10kV medium strength aluminum alloy molded lines, wherein: the steel wire is wound with 3-5 layers of core wires, so that the core wires and the steel wire can be better combined to form a compact shape, and the winding of an outer-layer profile conductor is facilitated; the section of the aluminum alloy type conductor wound outside the core conductor is trapezoidal, water-blocking paste is filled between the type conductor and the core lead and between the type conductors, and the water-blocking paste is utilized to improve the waterproofness of each layer, so that the aluminum alloy type conductor has better waterproofness even if the outer sheath is damaged; an inner water-blocking wrapping tape is wrapped outside the outmost profile-shaped conductor, an inner shielding layer and an inner insulating layer are arranged outside the inner water-blocking wrapping tape, an outer water-blocking wrapping tape and an armor layer are arranged outside the inner water-blocking wrapping tape, and finally an outer insulating layer, an outer shielding layer and a cross-linked polyethylene insulating sheath are arranged.
In the above, the thickness of the profile conductor is larger than the diameter of the core wire, and 3-5 layers of core wires are wound on the periphery of the steel wire. The profile conductor is provided with 3-5 layers, the thickness of the profile conductor is gradually increased from the inner layer to the outer layer, and the total thickness of the profile conductor is larger than the diameter of the core conductor.
The insulation adhesion and wear resistance test of the wire is far higher than the indexes of the common insulated wire, and the water resistance is verified by the 10-meter high-fall water resistance without water seepage; in addition, the product is subjected to an insulated conductor fatigue test, and the medium-strength aluminum alloy insulated conductor is proved to have excellent wind and vibration resistance effect; the bending performance of low bending radius under low temperature condition, and the insulating performance and the bending performance under extreme low temperature condition are verified, the low temperature resistance under the temperature of minus 30 to minus 40 ℃ is good in stretching and bending, and the low temperature resistance is far higher than that of a common lead. The construction and installation conditions under the low-temperature and low-bending conditions are met.
For purposes of explanation, specific nomenclature is used in the above description to provide a thorough understanding of the described embodiments. It will be apparent, however, to one skilled in the art that these specific details are not required in order to practice the embodiments described above. Thus, the foregoing descriptions of specific embodiments described herein are presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. It will be apparent to those skilled in the art that certain modifications, combinations, and variations can be made in light of the above teachings.
Claims (10)
1. A preparation method of a 10kV medium-strength aluminum alloy molded line water-blocking overhead insulated conductor is characterized by comprising the following steps: the method comprises the following steps:
preparing a core conductor, winding a profile conductor, coating an inner water-blocking tape, co-extruding an inner shielding layer insulating layer, coating an outer water-blocking tape, preparing an armor layer, and co-extruding an outer insulating layer and an outer shielding layer cross-linked polyethylene insulating sheath; specifically, the method comprises the following steps: firstly, winding 2-5 layers of aluminum alloy core wires outside a steel wire to prepare a core conductor, then winding a plurality of layers of profile conductors outside the core conductor, and filling water-blocking paste between the profile conductors and the core wires and between the profile conductors; thirdly, winding the profile conductor with an inner water-blocking tape for wrapping; fourthly, co-extruding an inner shielding layer and an inner insulating layer outside the inner water-blocking tape, fifthly, coating the outer water-blocking tape and the armor layer outside, and finally, carrying out multi-layer co-extrusion of the outer insulating layer, the outer shielding layer and the cross-linked polyethylene insulating sheath.
2. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: the inner shielding layer is made of a metal resin compound, and when the inner shielding layer and the inner insulating layer are co-extruded, the extrusion rate is 1-1.5m/s, and the extrusion temperature is 85-90 ℃.
3. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: performing degassing process for internal gases of the inner insulating layer and the inner shielding layer: standing in an open room with a temperature control range of 60-65 deg.C for degassing, wherein the degassing time is controlled at 36-50; and (5) observing the residual condition of the bubbles in the insulation through a silicone oil test.
4. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: the thickness of the profile conductor is greater than the diameter of the core wire.
5. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: 3-5 layers of core wires are wound on the periphery of the steel wire.
6. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: the profile conductor gradually increases in thickness from the inner layer to the outer layer.
7. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: the profile conductor is provided with 3-5 layers.
8. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: the total thickness of the profile conductor is greater than the diameter of the core conductor.
9. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: in the process of preparing a core conductor and a molded conductor outside the core conductor, a twice pre-twisting process is adopted, double-slave pre-twisting of pinch roller pre-twisting and squeeze film pre-twisting is adopted, a tension motor is arranged in cabling, and is connected with a brake disc of an air tension pay-off rack for cabling, in the production process of the molded conductor, a stranding machine needs to be technically improved, a pre-forming device is adopted, a water-blocking paste agent is additionally arranged in front of the pre-forming device, the conductor firstly passes through the water-blocking paste agent to enable the water-blocking paste to be coated on the surface of the conductor, and the water-blocking paste is uniformly coated on the conductor and gaps through the pre-forming device and a shaping device.
10. The preparation method of the 10kV medium-strength aluminum alloy type wire water-blocking overhead insulated conductor according to claim 1, characterized by comprising the following steps: when the outer insulating layer, the outer shielding layer and the crosslinked polyethylene insulating sheath are co-extruded in a multi-layer manner, the temperature of each area of the extruder is respectively 75-80 ℃, 82-95 ℃, 100-108 ℃ and 114-120 ℃; the die head temperature is 125-130 ℃.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103902A (en) * | 2011-01-27 | 2011-06-22 | 南京诺尔泰复合材料设备制造有限公司 | Cable with composite carbon fiber stranded wire reinforced core for power transmission line and manufacturing method thereof |
| CN202352362U (en) * | 2011-07-25 | 2012-07-25 | 江苏中天科技股份有限公司 | Low-wind-pressure conducting wire |
| CN102982877A (en) * | 2012-12-24 | 2013-03-20 | 揭阳市广福电子实业有限公司 | Audio and video signal transmission conduction wire |
| CN204117675U (en) * | 2014-09-09 | 2015-01-21 | 沈阳长城电缆实业有限公司 | Environment protection, rat blocks water Special power cable for subway |
| CN106098192A (en) * | 2016-08-08 | 2016-11-09 | 中天科技海缆有限公司 | A kind of heavy in section molded line conductor 500kV exchanges submarine cable |
| CN209843305U (en) * | 2019-06-17 | 2019-12-24 | 江苏中超控股股份有限公司 | High-transmission-capacity salt-corrosion-resistant tensile power cable special for seabed |
| CN111009355A (en) * | 2019-12-30 | 2020-04-14 | 杭州电缆股份有限公司 | Control method for eccentricity of split conductor of crosslinked wire core of ultrahigh-voltage cable |
| CN111627612A (en) * | 2020-05-14 | 2020-09-04 | 江苏亨通高压海缆有限公司 | Production method of high-power photoelectric composite direct-current submarine cable |
-
2021
- 2021-01-29 CN CN202110126016.7A patent/CN112820467A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103902A (en) * | 2011-01-27 | 2011-06-22 | 南京诺尔泰复合材料设备制造有限公司 | Cable with composite carbon fiber stranded wire reinforced core for power transmission line and manufacturing method thereof |
| CN202352362U (en) * | 2011-07-25 | 2012-07-25 | 江苏中天科技股份有限公司 | Low-wind-pressure conducting wire |
| CN102982877A (en) * | 2012-12-24 | 2013-03-20 | 揭阳市广福电子实业有限公司 | Audio and video signal transmission conduction wire |
| CN204117675U (en) * | 2014-09-09 | 2015-01-21 | 沈阳长城电缆实业有限公司 | Environment protection, rat blocks water Special power cable for subway |
| CN106098192A (en) * | 2016-08-08 | 2016-11-09 | 中天科技海缆有限公司 | A kind of heavy in section molded line conductor 500kV exchanges submarine cable |
| CN209843305U (en) * | 2019-06-17 | 2019-12-24 | 江苏中超控股股份有限公司 | High-transmission-capacity salt-corrosion-resistant tensile power cable special for seabed |
| CN111009355A (en) * | 2019-12-30 | 2020-04-14 | 杭州电缆股份有限公司 | Control method for eccentricity of split conductor of crosslinked wire core of ultrahigh-voltage cable |
| CN111627612A (en) * | 2020-05-14 | 2020-09-04 | 江苏亨通高压海缆有限公司 | Production method of high-power photoelectric composite direct-current submarine cable |
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