CN108154959A - A kind of novel high-pressure transmission of electricity power cable - Google Patents

A kind of novel high-pressure transmission of electricity power cable Download PDF

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Publication number
CN108154959A
CN108154959A CN201611106902.9A CN201611106902A CN108154959A CN 108154959 A CN108154959 A CN 108154959A CN 201611106902 A CN201611106902 A CN 201611106902A CN 108154959 A CN108154959 A CN 108154959A
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China
Prior art keywords
parts
layer
power cable
shielded layer
thermal insulation
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Pending
Application number
CN201611106902.9A
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Chinese (zh)
Inventor
王贤宗
韩心辉
刘子彦
马英士
张艺丹
朱新超
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Individual
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Individual
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Priority to CN201611106902.9A priority Critical patent/CN108154959A/en
Publication of CN108154959A publication Critical patent/CN108154959A/en
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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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • 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
    • 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
    • H01B7/225—Longitudinally placed metal wires or tapes forming part of an outer sheath
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention belongs to high voltage power transmission technical fields, disclose a kind of novel high-pressure transmission of electricity power cable, include conductor, insulating layer and protecting pipe from inside to outside, and the protecting pipe is three-decker, respectively thermal insulation layer, shielded layer and protective layer；Shielded layer is extruded outside the thermal insulation layer, protective layer is extruded outside the shielded layer；The insulation thickness is 0.2 0.3mm, the thickness of shielded layer is 0.01 0.2mm, and overcoat thickness is 2 3mm.Power cable heat resisting of the present invention, mechanical performance and fire retardant insulating performance are good, and acid and alkali-resistance salt corrosion.

Description

A kind of novel high-pressure transmission of electricity power cable
Technical field
The present invention relates to a kind of novel high-pressure transmission of electricity power cables, belong to high voltage power transmission technical field.
Background technology
Power cable is the cable for being used for transmission and distributing electric energy.Be usually used in Urban Underground power grid, power station lead-out wire The submarine transmission line on road, the in-line power of industrial and mining enterprises and crossing river and sea.In power circuit, the proportion shared by power cable Just gradually increase.Power cable is to be produced in the basic routing line of electric system to transmit and distribute the cable of high-power power Product, including 1-500KV and any of the above voltage class, the power cable of various insulation.
The basic structure of power cable is made of conductor, insulating layer and four part of restrictive coating.Core is leading for power cable Electric part is the major part of power cable for conveying electric energy.Insulating layer is by core and the earth and out of phase core Between be electrically isolated from each other, ensure electrical energy transportation, be indispensable component part in power cable structure.Restrictive coating conduct The exterior cover sheets of cable are most susceptible to the extruding and shock of external force, if cable cover(ing) intensity and toughness are inadequate, often The damage of cable is caused, causes security risk.
Invention content
To overcome above-mentioned deficiency, it is an object of the present invention to provide a kind of novel high-pressure transmit electricity power cable, heat resisting, Mechanical performance and fire retardant insulating performance are good, acid and alkali-resistance salt corrosion.
The present invention is achieved by the following technical solution：
A kind of novel high-pressure transmission of electricity power cable, includes conductor, insulating layer and protecting pipe, the protecting pipe is from inside to outside Three-decker, respectively thermal insulation layer, shielded layer and protective layer；Shielded layer is extruded outside the thermal insulation layer, is squeezed outside the shielded layer Packet protective layer；The insulation thickness is 0.2-0.3mm, the thickness of shielded layer is 0.01-0.2mm, overcoat thickness 2- 3mm；
The thermal insulation layer is double-deck synthetic mica tape；The shielded layer is copper strip shielding layer；The protective layer is according to following technique It is prepared：
Each raw material for standby is taken according to parts by weight, wherein, 100-150 parts of high density polyethylene (HDPE), gathers 50-70 parts of low density polyethylene (LDPE) 20-30 parts of carbonic ester, 12-18 parts of ethylene-vinyl acetate copolymer, 8-12 parts of polyethylene wax, 8-12 parts of dioctyl sebacate, 5-7 parts of boron nitride, 3-5 parts of silicon carbide, 3-5 parts of titanate esters crosslinking agent, 3-5 parts of magnesium hydroxide, 2-3 parts of aluminium hydroxide, carbon black 2-3 Part, 1-2 parts of molybdenum disulfide, 1-2 parts of bis-pentamethylenethiuram tetrasulfide, 1-2 parts of glass fibre, 1-2 parts of talcum powder；
By dioctyl sebacate, boron nitride, silicon carbide, titanate esters crosslinking agent, magnesium hydroxide, aluminium hydroxide, carbon black, curing Molybdenum, glass fibre and talcum powder are added to 2000rpm in high-speed mixer and 5min are mixed, then heat to 90 successively DEG C, 3min is kept the temperature, adds makrolon and bis-pentamethylenethiuram tetrasulfide, 1000rpm stirring 3min discharge, then With high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene-vinyl acetate copolymer, polyethylene wax mixing, put into twin-screw and squeeze Go out comminutor extruding pelletization, obtain masterbatch；Masterbatch is thrown into molding machine be molded, sizing, traction, after cutting to get.
The advantageous effect that the present invention obtains mainly includes the following aspects：
Protecting pipe, heat resisting, mechanical performance and fire retardant insulating performance are surrounded by outside novel high-pressure transmission of electricity power cable of the present invention It is good, acid and alkali-resistance salt corrosion and advantages of good shielding performance；Shielded layer is copper strip shielding layer structure, can be effectively prevented extraneous electromagnetic and do Disturb, shielded layer because electric power cable by electric current it is bigger, magnetic field can be generated around electric current, in order to not influence other element, So plus shielded layer can be this electromagnetic-field-shielded in cable；Thermal insulation layer is process by synthetic mica tape, synthetic mica Band, which removes, has that the coefficient of expansion is small, dielectric strength is big, resistivity is high and the uniform characteristic of dielectric constant, also has the special temperature classification high Characteristic, it is horizontal to can reach 950~1000 DEG C of A grades fire resisting；Polyethylene has high tensile strength, fabulous flexibility, resists Chemically and radiation resistance；The characteristics of ethylene-vinyl acetate stable chemical performance, radiation hardness, anti-aging property is outstanding, and Inorganic matter compatibility is good, and blending resulting materials performance is stablized；Makrolon water white transparency, heat-resisting, shock resistance is BI grades fire-retardant, There is good mechanical performance in commonly used temperature；Bis-pentamethylenethiuram tetrasulfide coordinates peroxidating as accelerating agent Object vulcanizing system so that the tensile strength of CABLE MATERIALS is high, and compression set is small, and comprehensive performance is good, and vulcanization time is short and fills Point so that sheath has good wear-resisting, solvent resistant and corrosion resistance.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, have below in conjunction with the application Body embodiment more clearly and completely describes the present invention, it is clear that described embodiment is only the application one Divide embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making All other embodiments obtained under the premise of creative work should all belong to the scope of protection of the invention.
Embodiment 1
A kind of novel high-pressure transmission of electricity power cable, includes conductor, insulating layer and protecting pipe, the protecting pipe is from inside to outside Three-decker, respectively thermal insulation layer, shielded layer and protective layer；Shielded layer is extruded outside the thermal insulation layer, is squeezed outside the shielded layer Packet protective layer；The insulation thickness is 0.2-0.3mm, the thickness of shielded layer is 0.01-0.2mm, overcoat thickness 2mm；
The thermal insulation layer is double-deck synthetic mica tape；The shielded layer is copper strip shielding layer；The protective layer is according to following technique It is prepared：
Each raw material for standby is taken according to parts by weight, wherein, 100 parts of high density polyethylene (HDPE), 50 parts of low density polyethylene (LDPE), makrolon 20 Part, 12 parts of ethylene-vinyl acetate copolymer, 8 parts of polyethylene wax, 8 parts of dioctyl sebacate, 5 parts of boron nitride, 3 parts of silicon carbide, 3 parts of titanate esters crosslinking agent, 3 parts of magnesium hydroxide, 2 parts of aluminium hydroxide, 2 parts of carbon black, 1 part of molybdenum disulfide, tetra-sulfurized pair pentamethylene 1 part of thiuram, 1 part of glass fibre, 1 part of talcum powder；
By dioctyl sebacate, boron nitride, silicon carbide, titanate esters crosslinking agent, magnesium hydroxide, aluminium hydroxide, carbon black, curing Molybdenum, glass fibre and talcum powder are added to 2000rpm in high-speed mixer and 5min are mixed, then heat to 90 successively DEG C, 3min is kept the temperature, adds makrolon and bis-pentamethylenethiuram tetrasulfide, 1000rpm stirring 3min discharge, then With high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene-vinyl acetate copolymer, polyethylene wax mixing, put into twin-screw and squeeze Go out comminutor extruding pelletization, obtain masterbatch；Masterbatch is thrown into molding machine be molded, sizing, traction, after cutting to get.
Embodiment 2
A kind of novel high-pressure transmission of electricity power cable, includes conductor, insulating layer and protecting pipe, the protecting pipe is from inside to outside Three-decker, respectively thermal insulation layer, shielded layer and protective layer；Shielded layer is extruded outside the thermal insulation layer, is squeezed outside the shielded layer Packet protective layer；The insulation thickness is 0.2-0.3mm, the thickness of shielded layer is 0.01-0.2mm, overcoat thickness 2mm；
The thermal insulation layer is double-deck synthetic mica tape；The shielded layer is copper strip shielding layer；The protective layer is according to following technique It is prepared：
Each raw material for standby is taken according to parts by weight, wherein, 150 parts of high density polyethylene (HDPE), 70 parts of low density polyethylene (LDPE), makrolon 30 Part, 18 parts of ethylene-vinyl acetate copolymer, 12 parts of polyethylene wax, 12 parts of dioctyl sebacate, 7 parts of boron nitride, silicon carbide 5 Part, 5 parts of titanate esters crosslinking agent, 5 parts of magnesium hydroxide, 3 parts of aluminium hydroxide, 3 parts of carbon black, 2 parts of molybdenum disulfide, five methylene of tetra-sulfurized pair 2 parts of base thiuram, 2 parts of glass fibre, 2 parts of talcum powder；
By dioctyl sebacate, boron nitride, silicon carbide, titanate esters crosslinking agent, magnesium hydroxide, aluminium hydroxide, carbon black, curing Molybdenum, glass fibre and talcum powder are added to 2000rpm in high-speed mixer and 5min are mixed, then heat to 90 successively DEG C, 3min is kept the temperature, adds makrolon and bis-pentamethylenethiuram tetrasulfide, 1000rpm stirring 3min discharge, then With high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene-vinyl acetate copolymer, polyethylene wax mixing, put into twin-screw and squeeze Go out comminutor extruding pelletization, obtain masterbatch；Masterbatch is thrown into molding machine be molded, sizing, traction, after cutting to get.
Embodiment 3
Performance detection experiment, each performance value such as table 1 are carried out to the protecting pipe protective layer in embodiment 1-2：
Table 1
Salt tolerance：The protection coating materials of embodiment 1 are soaked in 10% sodium chloride solution 30 days, tensile strength has dropped 0.5%, elongation at break declines 0.4%, other performances and characterization have no significant change.
Alkali resistance test：The protection coating materials of embodiment 1 are soaked in 10% sodium hydroxide solution 30 days, tensile strength 0.9% is had dropped, elongation at break declines 0.3%, other performances and characterization have no significant change.
Heat resistance：The protection coating materials of embodiment 1 are placed in 160 DEG C of steam 48 hours, tensile strength declines 2.1%, breaks It splits elongation and declines 1.5%, resistivity declines 3.1%, other performances and characterization have no significant change.
Finally, it should also be noted that it is listed above be only the present invention several specific embodiments.Obviously, the present invention not It is limited to above example, acceptable there are many deform.Those of ordinary skill in the art can be direct from present disclosure All deformations for exporting or associating, are considered as protection scope of the present invention.

Claims (3)

  1. The power cable 1. a kind of novel high-pressure is transmitted electricity, includes conductor, insulating layer and protecting pipe, the protecting pipe from inside to outside For three-decker, respectively thermal insulation layer, shielded layer and protective layer；Shielded layer is extruded outside the thermal insulation layer, outside the shielded layer Extrude protective layer；The insulation thickness is 0.2-0.3mm, the thickness of shielded layer is 0.01-0.2mm, overcoat thickness 2- 3mm。
  2. 2. a kind of novel high-pressure transmission of electricity power cable according to claim 1, which is characterized in that the thermal insulation layer is bilayer Synthetic mica tape；The shielded layer is copper strip shielding layer.
  3. 3. a kind of novel high-pressure transmission of electricity power cable according to claim 1 or 2, which is characterized in that the protective layer is pressed It is prepared according to following technique：
    1）Each raw material for standby is taken according to parts by weight：100-150 parts of high density polyethylene (HDPE), 50-70 parts of low density polyethylene (LDPE), poly- carbonic acid 20-30 parts of ester, 12-18 parts of ethylene-vinyl acetate copolymer, 8-12 parts of polyethylene wax, 8-12 parts of dioctyl sebacate, nitridation 5-7 parts of boron, 3-5 parts of silicon carbide, 3-5 parts of titanate esters crosslinking agent, 3-5 parts of magnesium hydroxide, 2-3 parts of aluminium hydroxide, 2-3 parts of carbon black, 1-2 parts of molybdenum disulfide, 1-2 parts of bis-pentamethylenethiuram tetrasulfide, 1-2 parts of glass fibre, 1-2 parts of talcum powder；
    2）By dioctyl sebacate, boron nitride, silicon carbide, titanate esters crosslinking agent, magnesium hydroxide, aluminium hydroxide, carbon black, curing Molybdenum, glass fibre and talcum powder are added to 2000rpm in high-speed mixer and 5min are mixed, then heat to 90 successively DEG C, 3min is kept the temperature, adds makrolon and bis-pentamethylenethiuram tetrasulfide, 1000rpm stirring 3min discharge, then With high density polyethylene (HDPE), low density polyethylene (LDPE), ethylene-vinyl acetate copolymer, polyethylene wax mixing, put into twin-screw and squeeze Go out comminutor extruding pelletization, obtain masterbatch；Masterbatch is thrown into molding machine be molded, sizing, traction, after cutting to get.
CN201611106902.9A 2016-12-06 2016-12-06 A kind of novel high-pressure transmission of electricity power cable Pending CN108154959A (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109346220A (en) * 2018-10-26 2019-02-15 国网河南省电力公司杞县供电公司 A kind of buried cable protective device
CN109545459A (en) * 2018-11-26 2019-03-29 国网河南省电力公司新野县供电公司 A kind of buried cable safety protection structure
CN110294874A (en) * 2019-07-03 2019-10-01 天长市佳烽电气有限公司 A kind of compensatory cable material of high efficiency insulation and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201359869Y (en) * 2008-12-30 2009-12-09 上海端翔机电有限公司 Marine fire-resistant control cable
CN202662323U (en) * 2012-05-22 2013-01-09 安徽省高沟电缆有限公司 High-temperature-resisting cable
CN103571008A (en) * 2013-09-30 2014-02-12 芜湖航天特种电缆厂 Low-smoke halogen-free flame-retardant polyolefin cable material
CN205582599U (en) * 2016-04-23 2016-09-14 江苏东强股份有限公司 High fire -retardant fire -resistant medium voltage power cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201359869Y (en) * 2008-12-30 2009-12-09 上海端翔机电有限公司 Marine fire-resistant control cable
CN202662323U (en) * 2012-05-22 2013-01-09 安徽省高沟电缆有限公司 High-temperature-resisting cable
CN103571008A (en) * 2013-09-30 2014-02-12 芜湖航天特种电缆厂 Low-smoke halogen-free flame-retardant polyolefin cable material
CN205582599U (en) * 2016-04-23 2016-09-14 江苏东强股份有限公司 High fire -retardant fire -resistant medium voltage power cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109346220A (en) * 2018-10-26 2019-02-15 国网河南省电力公司杞县供电公司 A kind of buried cable protective device
CN109545459A (en) * 2018-11-26 2019-03-29 国网河南省电力公司新野县供电公司 A kind of buried cable safety protection structure
CN109545459B (en) * 2018-11-26 2020-03-10 国网河南省电力公司新野县供电公司 Underground cable safety protection structure
CN110294874A (en) * 2019-07-03 2019-10-01 天长市佳烽电气有限公司 A kind of compensatory cable material of high efficiency insulation and preparation method thereof

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