CN110322995A - Crosslinked polyethylene nano-composite insulating cable - Google Patents
Crosslinked polyethylene nano-composite insulating cable Download PDFInfo
- Publication number
- CN110322995A CN110322995A CN201910569670.8A CN201910569670A CN110322995A CN 110322995 A CN110322995 A CN 110322995A CN 201910569670 A CN201910569670 A CN 201910569670A CN 110322995 A CN110322995 A CN 110322995A
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- China
- Prior art keywords
- layer
- cable
- crosslinked polyethylene
- composite insulating
- nano
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- 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.)
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Classifications
-
- 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
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
-
- 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
-
- 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
-
- 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
- H01B7/1895—Internal space filling-up means
-
- 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
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
The present invention relates to electric product technical fields, more particularly to a kind of crosslinked polyethylene nano-composite insulating cable, including a cable main body, the cable main body includes one or more insulated wire cores, the insulated wire cores are successively that wrapped layer, crosslinked polyethylene nano-composite insulating layer, the semiconductive of extruding of conductor thread core, semiconductive extrudes shielded layer and metal screen layer from inside to outside, and embossing type high strength non-woven fabric belting layer, isolation inner cushion layer, metal armor layers and low smoke, zero halogen oversheath are successively arranged outside the cable main body.The present invention uses crosslinked polyethylene nano-composite insulating material, rationally it is arranged and organically combines by multilayered structure, there is good electrical property, mechanical performance, electrochemical corrosion resistant performance, long service life, it is applied widely, it is the cable product that a safe and reliable performance gets a promotion.
Description
Technical field
The present invention relates to electric product technical fields, and in particular to a kind of crosslinked polyethylene nano-composite insulating cable.
Background technique
With the fast development of extra-high voltage grid and technology of transmission of electricity in recent years, medium and high voltage cable using more and more extensive.
And the problems with space charge in polymer is the important restriction factor of medium and high voltage cable development, solves the sky that medium and high voltage cable faces
Between charge problem just there is an urgent need to which traditional insulator materials are modified or developed with novel high-performance insulating materials, polymer matrix without
Therefore machine nanocomposite dielectric is increasingly becoming the hot spot of electric insulation area research.Crosslinked polyetylene insulated wire and cable is extensive
Using in industries such as the electric power energy in China, electronic information, rail traffic, aerospaces, by polyethylene nanocomposite dielectric
Insulating materials is applied in the manufacture of wire and cable, can effectively improve the insulation resistivity of insulating materials, improves insulating materials
Disruptive field intensity and insulating materials occur limiting electric trace poplar bundles after micro-damage, improve the technical level of wire and cable, use
Service life, reliability have important practical significance, and are more conducive to improve the economic benefit and social benefit of enterprise.
Summary of the invention
Technical problem the object of the present invention is to provide crosslinked polyethylene nano-composite insulating cable, more than solution.
Technical problem solved by the invention can be realized using following technical scheme:
Crosslinked polyethylene nano-composite insulating cable, including a cable main body, the cable main body includes one or more
Insulated wire cores, the insulated wire cores are successively that wrapped to extrude layer, crosslinked polyethylene nanometer multiple for conductor thread core, semiconductive from inside to outside
Conjunction insulating layer, semiconductive extrude shielded layer and metal screen layer, and embossing type high intensity nonwoven is successively arranged outside the cable main body
Cloth belting layer, isolation inner cushion layer, metal armor layers and low smoke, zero halogen oversheath.
In the present invention, insulated wire cores are insulated using crosslinked polyethylene nanocomposite dielectric, are contained in insulating material component
Base polyethylene, antioxidant, crosslinking agent, nanoparticle etc. constitute composite dielectrics insulating materials, mutual phase
Hold, and plays the role of reinforcement.Nanometer additive itself has big specific surface area, high surface-active and some unusual reasons
Change effect, a small amount of mixed nanometer can significantly improve certain performances of polymeric dielectric, quantum effect and particle properties
Local area field distribution, the formation of interfacial polarization layer can significantly change microcosmic local conductance, especially to interface lead characteristic
The electrical properties of polymer nanocomposites play an important role.Including resistivity, dielectric constant, dielectric loss, disruptive field intensity,
The Dielectric behaviors such as shelf depreciation, poplar bundles, space charge behavior, the thermal properties such as thermal conductivity, glass transition temperature, heat resistance, with
And the mechanical performances such as tensile strength, hardness, impact property.The crosslinked polyethylene nanocomposite dielectric insulation position that the present invention uses
Between two layers of semiconductive shielding layer, smooth semiconductor electric layer can make field distribution uniform, insulating layer and inside and outside half
Conductive layer is tightly engaged into, and eliminates air gap, eliminate or reduces partial discharge quantity, improves dielectric level, and extending cable makes
Use the service life.
A kind of new material crosslinked polyethylene nano-composite insulating material, by being chemically crosslinked technology, by poly- second
Alkene molecule is by linearly becoming space network, so as to significantly improve insulating layer high temperature resistant, anti-aging, mechanical performance, low
The properties such as carbocyclic ring guarantor.
The metallic shield is wrapped using copper strips or copper wire winds the compound composition of copper strips, plays electrostatic screen well
Effect, also acts the effect of conducting failure electric current.
The copper wire winding copper strips composite shielding layer uses reciprocating SZ twisting process, and factory length is long, and it is convenient to connect,
Cable does not influence the thickness change of semi-conductive layer, high production efficiency when expanding.
The twining package tape uses the embossing type high strength non-woven fabric band equipped with fiber band, steady after core stranding to improve
Qualitative and rounding property, and the heat resistance of twining package tape can be improved in the setting of fiber band, enhances the mechanical performance of band.
The separation layer uses low smoke, zero halogen polyolefin high polymer, and integral strength and flexible can be improved in set high polymer
Property, and there is anti-flammability, good corrosion resistance will not generate toxic and harmful gas, particularly suitable for public field in burning
The ground such as the densely populated places such as conjunction use, and effectively prevent secondary hazards.
Metal armor layers are set outside the separation layer, and metal armor layers are by galvanized steel strip or nonmagnetic metal band group
At the metal armor layers are set in oversheath, and the energy that insulated cable core is damaged by external mechanical external force can be improved
Power improves mechanical performance, the creep-resistant property of cable, and can enhance certain electromagnetic wave shielding.
The conductor thread core uses electrician's soft copper conductor.
When the cable main body is equipped with a cable core, the embossing isolation belting layer is directly coated on described
The outside of cable core；When the inside of the separation layer is filled with more than two cable cores, the cable core it
Between using filled layer fill.The outer jacket uses low smoke, zero halogen polyolefin high polymer, and set high polymer has anti-flammability,
Good corrosion resistance will not generate toxic and harmful gas, particularly suitable for the densely populated places such as public arena and other places in burning
It uses, effectively prevents secondary hazards.
The utility model has the advantages that due to using above-mentioned technical solution, structure of the invention design is rationally, easily fabricated.Using crosslinking
Polyethylene nano-composite insulating, by the combination of each structure sheaf, cable has good electric conductivity, electric property, machinery
Performance, electrochemical corrosion resistant performance, applied widely, excellent electrical properties, long service life are that a safety and reliability obtain
To the cable product of promotion.
Detailed description of the invention
Fig. 1 is single structural schematic diagram of the invention；
Fig. 2 is three-core structure schematic diagram of the invention.
Specific embodiment
In order to realize the present invention technological means, character of innovation, reach purpose and effect is easy to understand, tie below
Conjunction is specifically illustrating that the present invention is further explained.
Referring to Fig.1, Fig. 2, crosslinked polyethylene nano-composite insulating cable, including cable main body, cable main body include cable
Core, cable core include the external insulating layer 3 coated of conductor thread core 1, conductor thread core 1, and conductor thread core 1 is using electrician with soft
Copper conductor.Conductor thread core 1 is wrapped outside and extrudes one layer of semiconductive shielding layer 2, and semiconductive shielding layer 2 is externally provided with insulating layer 3.Insulation
Layer 3, which is externally provided with outside out semiconductor layer 4, insulated wire cores, is successively arranged metal screen layer 5, embossing type high strength non-woven fabric band
7, low smoke and zero halogen separation layer 8, metal tape armour layer 9, low smoke and zero halogen oversheath 10 use non-suction between three-core cable insulated wire cores
Wet materials 6 are filled.
It is wrapped outside conductor thread core 1 to extrude semiconductive shielding layer 2 in the present invention, pass through the circle of semiconductive shielding layer outer surface
The field uniformity of whole enhancing conductor thread core 1.It is externally provided with semiconductives external shielding layer 4 in insulating layer 3, insulating layer 3 is the poly- second of crosslinking
Alkene nano-composite insulating material, by chemical crosslinking after have apparent bulk material feature, high temperature resistant, anti-aging, intensity is high,
Low-carbon environment-friendly etc..A small amount of mixed nanometer significantly improves certain performances of polymeric dielectric, quantum effect and particle properties pair
Local electric field distribution, the formation of interfacial polarization layer significantly change microcosmic local conductance, the especially polymerization to interface lead characteristic
The electrical properties of object nanocomposite play an important role.Including resistivity, dielectric constant, dielectric loss, disruptive field intensity, part
The Dielectric behaviors such as electric discharge, poplar bundles, space charge behavior, the thermal properties such as thermal conductivity, glass transition temperature, heat resistance, Yi Jikang
The mechanical performances such as Zhang Qiangdu, hardness, impact property.
The present invention uses crosslinked polyethylene nano-composite insulating 3, and cable electric breakdown field strength can be made to improve
12%, material internal space charge significantly reduces, and partial discharge quantity and discharge time are obviously reduced, and electric branch draws
Hair rate, the speed of growth and fractal dimension are suppressed, and resistance to electric branch performance improves.So that cable have better electric insulation,
Mechanical performance and service life.
Copper wire winding copper strips composite shielding layer 5 of the present invention uses reciprocating SZ twisting process, and factory length is long, connects
Continuous convenient, cable does not influence the thickness change of semi-conductive layer, high production efficiency when expanding.
Referring to Fig.1, a cable core is equipped in cable main body, a cable core is arranged in high-intensitive twining package tape 7.
Referring to Fig. 2, set in cable main body there are three cable core, three cable cores are arranged in isosceles triangle, cable core
Between using filled layer fill.Non-hygroscopic environment-protection filling material can be used in filled layer 6.
The metal armor layers 9 that the present invention uses have good, the machine for damaging insulated cable core by mechanical external force
Tool performance, creep-resistant property, electromagnetic shielding performance.Metal armor layers can be by the wrapped overlapping armouring of metal tape, can also be by gold
Belong to band and mutually buckles chain armouring composition.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. crosslinked polyethylene nano-composite insulating cable, which is characterized in that including a cable main body, the cable main body includes one
Root or a plurality of insulated core, the insulated wire cores, which are successively that conductor thread core, semiconductive are wrapped from inside to outside, extrudes layer, the poly- second of crosslinking
Alkene nano-composite insulating layer, semiconductive extrude shielded layer and metal screen layer, and it is high that embossing type is successively arranged outside the cable main body
Intensity non-woven fabrics belting layer, isolation inner cushion layer, metal armor layers and low smoke, zero halogen oversheath.
2. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that insulated wire cores are using friendship
Join the insulation of polyethylene nanocomposite dielectric, contains base polyethylene, antioxidant, crosslinking agent, nanometer in insulating material component
Particle.
3. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the metallic shield
Layer is wrapped using copper strips or copper wire winds the compound composition of copper strips.
4. crosslinked polyethylene nano-composite insulating cable according to claim 3, which is characterized in that the copper wire winding
Copper strips composite shielding layer uses reciprocating SZ twisting process.
5. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the twining package tape uses
Embossing type high strength non-woven fabric band equipped with fiber band.
6. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the isolation inner cushion layer
Using low smoke, zero halogen polyolefin high polymer.
7. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the metal armor layers
It is made of galvanized steel strip or nonmagnetic metal band.
8. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the conductor thread core is adopted
With electrician's soft copper conductor.
9. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that when the cable main body
When equipped with a cable core, the embossing isolation belting layer is directly coated on the outside of the cable core；When described
When the inside of separation layer is filled with more than two cable cores, filled between the cable core using filled layer.
10. crosslinked polyethylene nano-composite insulating cable according to claim 1, which is characterized in that the outer jacket is adopted
With low smoke, zero halogen polyolefin high polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569670.8A CN110322995A (en) | 2019-06-27 | 2019-06-27 | Crosslinked polyethylene nano-composite insulating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569670.8A CN110322995A (en) | 2019-06-27 | 2019-06-27 | Crosslinked polyethylene nano-composite insulating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110322995A true CN110322995A (en) | 2019-10-11 |
Family
ID=68120492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569670.8A Pending CN110322995A (en) | 2019-06-27 | 2019-06-27 | Crosslinked polyethylene nano-composite insulating cable |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007103247A (en) * | 2005-10-06 | 2007-04-19 | J-Power Systems Corp | Insulation composite and electric wire/cable |
| CN101747553A (en) * | 2009-12-18 | 2010-06-23 | 江苏兴海线缆有限公司 | Nano power cable insulating material of montmorillonite, modified crosslinking agent and polyethylene and making method thereof |
| CN202650676U (en) * | 2012-05-31 | 2013-01-02 | 四川摩天交联电缆有限公司 | Waterproof power cable |
| CN204423993U (en) * | 2015-03-10 | 2015-06-24 | 国家电网公司 | Anticorrosion moistureproof power cable with cross-linked polyethylene insulation |
| WO2017005280A1 (en) * | 2015-07-03 | 2017-01-12 | Abb Technology Ltd | Next level nanocomposites for electrical insulation |
| CN205920801U (en) * | 2016-07-18 | 2017-02-01 | 江苏中天科技股份有限公司 | High fire -retardant middling pressure aluminum alloy cable |
| CN108103669A (en) * | 2017-12-29 | 2018-06-01 | 嘉兴市宏景无纺面料有限公司 | A kind of embossing non-woven fabrics |
-
2019
- 2019-06-27 CN CN201910569670.8A patent/CN110322995A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007103247A (en) * | 2005-10-06 | 2007-04-19 | J-Power Systems Corp | Insulation composite and electric wire/cable |
| CN101747553A (en) * | 2009-12-18 | 2010-06-23 | 江苏兴海线缆有限公司 | Nano power cable insulating material of montmorillonite, modified crosslinking agent and polyethylene and making method thereof |
| CN202650676U (en) * | 2012-05-31 | 2013-01-02 | 四川摩天交联电缆有限公司 | Waterproof power cable |
| CN204423993U (en) * | 2015-03-10 | 2015-06-24 | 国家电网公司 | Anticorrosion moistureproof power cable with cross-linked polyethylene insulation |
| WO2017005280A1 (en) * | 2015-07-03 | 2017-01-12 | Abb Technology Ltd | Next level nanocomposites for electrical insulation |
| CN205920801U (en) * | 2016-07-18 | 2017-02-01 | 江苏中天科技股份有限公司 | High fire -retardant middling pressure aluminum alloy cable |
| CN108103669A (en) * | 2017-12-29 | 2018-06-01 | 嘉兴市宏景无纺面料有限公司 | A kind of embossing non-woven fabrics |
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Application publication date: 20191011 |
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| RJ01 | Rejection of invention patent application after publication |