CN109524155A - A kind of aerial condutor with thin insulating - Google Patents
A kind of aerial condutor with thin insulating Download PDFInfo
- Publication number
- CN109524155A CN109524155A CN201811365123.XA CN201811365123A CN109524155A CN 109524155 A CN109524155 A CN 109524155A CN 201811365123 A CN201811365123 A CN 201811365123A CN 109524155 A CN109524155 A CN 109524155A
- Authority
- CN
- China
- Prior art keywords
- aerial condutor
- core
- dielectric layer
- wire
- thin dielectric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 19
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 5
- 239000008397 galvanized steel Substances 0.000 claims abstract description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 7
- 238000004132 cross linking Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- 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
- H01B13/14—Insulating conductors or cables by extrusion
-
- 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
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- 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
Abstract
The invention discloses a kind of aerial condutors with thin insulating, including aerial condutor core (1) and thin dielectric layer (2)；The thin dielectric layer (2) is coated on aerial condutor core (1) periphery.The center of aerial condutor core (1) is formed by one or more galvanized steel wire or aluminum-clad steel wire or aluminium alloy wire process, outer one or more layers aluminum steel of process or aluminium alloy wire according to a conventional method again.Wire center mainly undertakes stretching resistance effect, and the aluminum steel or aluminium alloy wire of outside assume responsibility for electric action and the effect of part stretching resistance.Conducting wire of the invention is easy to construct, and does not generate corona, is not easy accumulated ice or accumulated snow.Diameter and the self weight of common aerial insulated cable are reduced using thin dielectric layer, tower load is small, and arc sag is small, wind load coefficient is small, with small vibration, and safety coefficient is higher, and it can effectively avoid rainwater or salt fog enter inside conducting wire, chemical attack will not occur for strands, thus the service life of extension lead.
Description
Technical field
It is specially a kind of with thin insulating the present invention relates to a kind of transmission line of electricity, especially high pressure, ultrahigh voltage overhead wire
Aerial condutor.
Background technique
Currently, well known aerial condutor has two classes: the first kind is the overhead stranded conductor of bare metal, is usually twisted with one heart by round wires
It makes, centre is galvanized steel wire, aluminum-clad steel wire or high-strength aluminum alloy line, and outside is aluminum steel or high-strength aluminum alloy line
Layering is successively twisted；Another kind of is the extruded insulation layer again on the basis of the first kind, according to voltage class difference, and divides low pressure frame
Empty insulated cable and middle pressure aerial insulated cable.Low pressure aerial insulated cable only has insulating layer, and middle pressure aerial insulated cable band is led
Body shielding and insulating layer or conductor shielding, insulation and insulation screen.First kind aerial condutor in use, first is that
Due to being formed with the direct process of metal wire of the same race or not of the same race, during laying unwrapping wire, strands are held since there are residual stress
It is easily loose, it causes constructional difficulties or leaves accident potential；Second is that convex-concave is not since conductive line surfaces are constituted by justifying single line one by one
It is flat, corona is easily formed, in use, corona is more also easy to produce especially on high pressure, super-pressure overhead transmission line, to reduce corona discharge,
Usually use split conductor；Third is that due to uneven, the easy accumulated snow of conductive surface, also, since single metal wire is directly sudden and violent
In air, cooling is fast for dew, and under conditions of meteorological condition is unfavorable, Yi Jibing, accumulated snow and accumulated ice often will cause route damage；
Fourth is that this conducting wire because between circle single line contact surface it is few, rainwater is almost around whole single line, and all strands are completely disposed at rain in conducting wire
In this weak electrolyte liquid of water, the time is slightly long, and chemical attack or electrochemical corrosion can occur for single line and stranded, causes route power transmission
Difficult or broken string is dangerous, in use, the corrosivity of rainwater or salt fog is stronger on island.Although the second class aerial insulated cable exists
It is added to insulating layer (or insulating layer and shielded layer) outside bare conductor, certain deficiencies of bare conductor can be overcome, but cause shaft tower
Load increases, and arc sag decline, wind load coefficient is big, and vibration aggravation, safety coefficient is small, so, it is only used for the overhead line of mesolow
On the road.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of aerial condutor with thin insulating, including aerial condutor line
Core and thin dielectric layer.The thin dielectric layer is extruded in aerial condutor core periphery, forms shiny surface.
Further, the center of aerial condutor core is by one or more galvanized steel wire or aluminum-clad steel wire or aluminium alloy wire
Process forms, outer one or more layers aluminum steel of process or aluminium alloy wire again.
Further, thin dielectric layer is with a thickness of the weather-proof crosslinking of 0.3-1.0mm or non-crosslinked polyvinyl chloride insulation, gathers
Ethylene insulating materials, the performance of Insulation Material meet GB/T12527 requirement.
Further, the surface of the thin dielectric layer extruded is smooth cylindrical surface, and thin dielectric layer is amenable to GB/T3048.9
Defined spark-testing.
Further, thin dielectric layer extrudes the method on aerial condutor core are as follows: first presses aerial condutor core
Standard production finishes, and then extrudes one layer of thin dielectric layer outside aerial condutor core again；Extruding the thin dielectric layer can be common
Cable plastic extrusion machine on realize.
Conducting wire of the invention is easy to construct, and does not generate corona, is not easy accumulated ice or accumulated snow.It is reduced commonly using thin dielectric layer
The diameter of aerial insulated cable and self weight, tower load is small, and arc sag is small, and wind load coefficient is small, with small vibration, and safety coefficient is high, and
It can effectively avoid rainwater or salt fog enter inside conducting wire, chemical attack will not occur for strands, thus the service life of extension lead.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is aerial core structure schematic diagram of the invention.
In figure, 1. aerial condutor cores, 2. thin dielectric layers, 3. process layers one, 4. process layers two.
Specific embodiment
As illustrated in fig. 1 and 2, a kind of aerial condutor with thin insulating, including aerial condutor core 1, thin dielectric layer 2.It is thin absolutely
Edge layer 2, which extrudes, is coated on 1 periphery of aerial condutor core.Aerial condutor core 1 can be aluminum stranded conductor, aluminium alloy stranded conductor, steel-core-aluminium
Twisted wire, steel core aluminum alloy stranded wire, steel-aluminum wire or aluminium packet steel core aluminum alloy stranded wire.The thin dielectric layer 2 is thickness
The weather-proof crosslinking of 0.3-1.0mm or non-crosslinked type thin insulating plastics.
The aerial condutor core meets TG/T1179 requirement.
The weather-proof artificial weathering test for meeting GB/T12527.
Embodiment
Aerial condutor core 1 is first made, then extrudes one layer of thin dielectric layer 2 outside aerial condutor core 1.Aerial condutor core
1 center is process layer 1, and process layer 1 can be closed by one or more galvanized steel wire or aluminum-clad steel wire, or high-intensitive aluminium
Gold thread process forms, and one layer of process layer 24 of process, process layer 24 can be by one or more layers aluminum steel or aluminium alloy wires again for outside
Process forms.Conductor wire core center mainly undertakes stretching resistance effect, and the aluminum steel or aluminium alloy wire of outside process assume responsibility for conductive work
It is acted on with part stretching resistance.The requirement of aerial condutor core 1 meets the standard of corresponding aerial condutor.Thin dielectric layer 2 is by one layer
It is constituted with a thickness of the weather-proof crosslinking of 0.3-1.0mm or non-crosslinked type thin insulating plastics.
The sublevel insulation principle that plastics add air is utilized in the thin insulating aerial condutor, and the kind of plastics is different, and dielectric is normal
Number is also different, usually 2.5-8.0, due to the plastic insulating layer dielectric constant close to conducting wire, compared with the dielectric constant of outside air
(usually 1.0) are high, can reach the purpose of uniform electric field, improve the discharge inception voltage of aerial condutor, is i.e. this kind of conducting wire is not easy shape
At corona, especially in use, effect becomes apparent on high pressure, super-pressure overhead transmission line；Due to improving the benefit of air insulation
With coefficient, spacing between conducting wire can be made suitably to reduce, save the space passage；Simultaneously as the outermost layer of this kind of aerial condutor is
Aerial condutor core can be strapped in the inside, form an entirety by one layer of plastic sheath, when construction, conducting wire pine stock would not occur
Phenomenon eliminates the hidden danger of quality caused by constructing；Due to the thinner thickness of the plastic insulating layer, conducting wire will not be caused too much
Diameter increases and weight increases, thus, small to the loading effect of shaft tower, the more original conducting wire of wind load coefficient increases seldom, and safety is
Number is high；This layer of smooth weather-proof crosslinking extruded outside wire core or non-crosslinked type ambroin, are not easy accumulated snow, also, every
Contact of the plain conductor with air absolutely, when meteorological condition is unfavorable, the overhead stranded conductor cooling of plastic layer more conventional bare metal is slow,
To be not easy accumulated ice；Because of one layer of thin insulating plastic sheath, rainwater or salt fog not can enter inside conducting wire, and strands will not occur
Chemical attack, so that the service life of conducting wire is extended, in use, salt is larger in air or rainwater especially on island, this
Kind conducting wire prolongs the service life more obvious.
Claims (5)
1. a kind of aerial condutor with thin insulating, it is characterised in that: including aerial condutor core (1) and thin dielectric layer (2)；It is described
Thin dielectric layer (2) is extruded in aerial condutor core (1) periphery.
2. a kind of aerial condutor with thin insulating described in accordance with the claim 1, it is characterised in that: the aerial condutor core
(1) center is formed by one or more galvanized steel wire or aluminum-clad steel wire or aluminium alloy wire process, outer one layer of process again or
Multilayer aluminum steel or aluminium alloy wire.
3. a kind of aerial condutor with thin insulating described in accordance with the claim 1, it is characterised in that: the thin dielectric layer (2) is
Weather-proof crosslinking or non-crosslinked polyvinyl chloride insulation, polyethylene insulation material with a thickness of 0.3-1.0mm.
4. a kind of aerial condutor with thin insulating described in accordance with the claim 1, it is characterised in that: the thin dielectric layer (2) extruded
Surface be smooth cylindrical surface.
5. a kind of preparation method of the aerial condutor with thin insulating, it is characterised in that: aerial condutor core (1) is pressed standard first
Production finishes, and then extrudes one layer of thin dielectric layer (2) outside aerial condutor core (1) again；Extruding the thin dielectric layer (2) can be
It is realized on common cable plastic extrusion machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365123.XA CN109524155A (en) | 2018-11-16 | 2018-11-16 | A kind of aerial condutor with thin insulating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365123.XA CN109524155A (en) | 2018-11-16 | 2018-11-16 | A kind of aerial condutor with thin insulating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109524155A true CN109524155A (en) | 2019-03-26 |
Family
ID=65778390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811365123.XA Pending CN109524155A (en) | 2018-11-16 | 2018-11-16 | A kind of aerial condutor with thin insulating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109524155A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1481418A (en) * | 2000-10-24 | 2004-03-10 | 联合碳化化学及塑料技术公司 | High-speed processable cellular insulation material with enhanced foamability |
| CN201348890Y (en) * | 2008-12-23 | 2009-11-18 | 安徽华菱电缆集团有限公司 | Super-thin insulation high-temperature resistant, corrosion-resistant, oil-resistant, abrasion-resistant, low smoke halogen-free flame-retardant locomotive vehicle cable |
| CN201364749Y (en) * | 2009-01-14 | 2009-12-16 | 安徽五洲特种电缆集团有限公司 | Light type military wire |
| CN202434226U (en) * | 2012-07-05 | 2012-09-12 | 上海福尔欣线缆有限公司 | Abrasion-proof thin-wall polrvinyl chloride insulated automotive wire |
| CN203941710U (en) * | 2014-03-04 | 2014-11-12 | 上海福尔欣线缆有限公司 | Automobile engine NOx sensor connects superelevation heatproof fluorine insulated electric conductor |
| CN204332429U (en) * | 2014-12-12 | 2015-05-13 | 安徽省巢湖海兴电缆集团有限公司 | A kind of high temperature resistant type thin-walled insulating locomotive vehicle electric wire |
| CN209281910U (en) * | 2018-11-16 | 2019-08-20 | 江苏通光强能输电线科技有限公司 | A kind of aerial condutor with thin insulating |
-
2018
- 2018-11-16 CN CN201811365123.XA patent/CN109524155A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1481418A (en) * | 2000-10-24 | 2004-03-10 | 联合碳化化学及塑料技术公司 | High-speed processable cellular insulation material with enhanced foamability |
| CN201348890Y (en) * | 2008-12-23 | 2009-11-18 | 安徽华菱电缆集团有限公司 | Super-thin insulation high-temperature resistant, corrosion-resistant, oil-resistant, abrasion-resistant, low smoke halogen-free flame-retardant locomotive vehicle cable |
| CN201364749Y (en) * | 2009-01-14 | 2009-12-16 | 安徽五洲特种电缆集团有限公司 | Light type military wire |
| CN202434226U (en) * | 2012-07-05 | 2012-09-12 | 上海福尔欣线缆有限公司 | Abrasion-proof thin-wall polrvinyl chloride insulated automotive wire |
| CN203941710U (en) * | 2014-03-04 | 2014-11-12 | 上海福尔欣线缆有限公司 | Automobile engine NOx sensor connects superelevation heatproof fluorine insulated electric conductor |
| CN204332429U (en) * | 2014-12-12 | 2015-05-13 | 安徽省巢湖海兴电缆集团有限公司 | A kind of high temperature resistant type thin-walled insulating locomotive vehicle electric wire |
| CN209281910U (en) * | 2018-11-16 | 2019-08-20 | 江苏通光强能输电线科技有限公司 | A kind of aerial condutor with thin insulating |
Non-Patent Citations (1)
| Title |
|---|
| 郭仲礼: "《低压电工实用技术》", pages: 115 - 118 * |
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