CN107342135A - Low-voltage electric power cable used for nuclear - Google Patents

Low-voltage electric power cable used for nuclear Download PDF

Info

Publication number
CN107342135A
CN107342135A CN201710478839.XA CN201710478839A CN107342135A CN 107342135 A CN107342135 A CN 107342135A CN 201710478839 A CN201710478839 A CN 201710478839A CN 107342135 A CN107342135 A CN 107342135A
Authority
CN
China
Prior art keywords
layer
outside
halogen
temperature resistant
nuclear
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
Application number
CN201710478839.XA
Other languages
Chinese (zh)
Inventor
张万有
周俊
张玉湘
韩俊宝
夏候东
杨春红
朱元忠
李正阳
陈安鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Cable Co Ltd
Original Assignee
Anhui Cable Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Cable Co Ltd filed Critical Anhui Cable Co Ltd
Priority to CN201710478839.XA priority Critical patent/CN107342135A/en
Publication of CN107342135A publication Critical patent/CN107342135A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables

Abstract

The invention discloses a kind of low-voltage electric power cable used for nuclear, include the multiple conductors for being twisted bunchy by more tinned copper wires and being formed, it is coated with crosslinking with radiation halogen-free polyolefin inner insulating layer, external insulation layer, double-deck high temperature resistant lapping layer outside each conductor successively respectively, fiberglass gridding cloth inner liner, irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer is coated with jointly outside the double-deck high temperature resistant lapping layer of multiple conductors;Non-hygroscopic bittern-free flame-proof material is filled in fiberglass gridding cloth inner liner.Cable insulation and sheath of the present invention have excellent physical and mechanical properties, and high-temperature resistant result is good, while have resistance to 60 years heat aging performances.

Description

Low-voltage electric power cable used for nuclear
Technical field:
The present invention relates to cable, mainly a kind of used in nuclear power station 1E levels K1 class lv power cables.
Background technology:
Nuclear energy is a kind of cleaning and the safe and reliable energy, can effectively alleviate energy demand and money that China becomes increasingly conspicuous at present Source, communications and transportation, the contradiction of environmental protection, and solve an important channel of China's energy potential collision hazard.Into the new century, New strategical reajustment is made in development of the country to nuclear power.State Council has promulgated《Nuclear power Long-and Medium-term Development is planned》, it is proposed that arrive The year two thousand twenty nuclear power installed capacity reaches 50,000,000 kilowatts, is building 18,000,000 kilowatts of target.From the point of view of world wide, Asia is still The center of Nuclear Electricity development.Three generations's nuclear power harsh and unforgiving environments are developed to use(K1 classes)Nuclear grade cable, will be to 1E level nuclear grade cables Market produces material impact, realizes and substitutes similar imported product, realizes that nuclear power key technology domesticizes, the development to social economy And national security has great significance, while it is expected to realize export abroad, lifts the competition energy of domestic nuclear power international market Power.
Wherein power cable is mainly used for transmitting and distributes the cable of electric energy, requires in actual use stronger Heat-resisting quantity.
The content of the invention:
The technical problems to be solved by the invention are to provide a kind of low-voltage electric power cable used for nuclear, to solve prior art presence Technical problem.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of low-voltage electric power cable used for nuclear, includes the multiple conductors for being twisted bunchy by more tinned copper wires and being formed, and it is special Sign is:It has been respectively coated by outside each conductor exhausted outside crosslinking with radiation halogen-free polyolefin inner insulating layer and crosslinking with radiation halogen-free polyolefin Edge layer, double-deck high temperature resistant lapping layer is also respectively coated by outside the crosslinking with radiation halogen-free polyolefin external insulation layer of each conductor, it is double Layer high temperature resistant lapping layer is high-temperature resistant membrane lapping layer and high-temperature fibre lapping layer respectively, the double-deck resistance to height of the multiple conductor Fiberglass gridding cloth inner liner is coated with outside warm lapping layer jointly, irradiation is also wrapped on outside fiberglass gridding cloth inner liner and is handed over Join the fire-retardant external sheath layer of halogen-free polyolefin;Non-hygroscopic bittern-free flame-proof material is filled in fiberglass gridding cloth inner liner.
A kind of described low-voltage electric power cable used for nuclear, it is characterised in that:In fiberglass gridding cloth inner liner and spoke According to packed layer is provided between crosslinked halogen-free polyolefin flame-retardant external sheath layer, high temperature oxidation resisting magnesium ceramic powder is filled with packed layer End.
A kind of described low-voltage electric power cable used for nuclear, it is characterised in that:The inside and outside insulating barrier and external sheath layer Pristine tensile strength and elongation at break can reach 9.0N/mm2 and more than 200%.
Conductor of the present invention uses the 2nd class tinned copper conductor.
Innovative point of the present invention:
(1)Optimize product structure, increase high temperature resistant lapping layer;
This time the insulation of research and development core is extruded using irradiation polyolefin bilayer, ensures that its electrical property meets design requirement, but because of polyene The resistance to elevated temperatures of hydrocarbon material is relatively low, to ensure cable normal use under nominal situation and DBA and AG operating modes, in insulated wire cores The upper selection increase wrapped Rotating fields of high temperature resistant, effectively ensure that the properties of insulated wire cores at high operating temperatures meet design and wanted Ask, cable overall performance is also obviously improved.
(2)Carry out material beta ray and gamma-rays transfer test at home first;
Because current experimental condition limits, β ray tests device is still difficult to carry out radiation aging experiment to batch cable, to ensure The continuity of experiment, my company carry out β rays and gamma-rays transfer test to identical material, model are calculated with reference to center group heap work To enclose, experiment draws β rays and gamma-rays conversion proportion, and LOCA radiation agings are carried out using whole cable of conversion proportion relation pair, Ensure test validity.
(3)Electric performance test is carried out after immersion test, meets design requirement;
After long-term immersion test, test cable need to carry out immersion pressure test again, to ensure it in submergence and after submergence With the characteristic that its function is performed under harsh and unforgiving environments working condition, meet in harsh and unforgiving environments working condition design requirement.
(4)Under equal conditions carry out heat ageing and the comparative experiment of simulating piece bunchy burning, checking before and after radiation aging Heat ageing and the influence of radiation aging factor pair fire retardant mechanism;
The examination list organized for checking heat ageing and the influence of radiation aging factor pair fire retardant mechanism, research and development cable in nuclear safety office Under the witness of position and designing unit, heat ageing and simulating piece bunched burning test before and after radiation aging are under equal conditions carried out, Result of the test meets design and test program requirement.
It is an advantage of the invention that:
The present invention is suitable for 1kV inside and outside three generations's nuclear power plant containment shell and following AC electric power systems, the cable insulation and sheath With excellent physical and mechanical properties, high-temperature resistant result is good, while has resistance to 60 years heat aging performances, can meet that nuclear power station is normal 60 years accumulation irradiation dose 250kGy under operating mode, while meet bunchy A class combustion requirements specified in IEC60332, reach state Interior advanced level.
Brief description of the drawings:
Fig. 1 is the structural representation of the present invention.
Embodiment:
Referring to Fig. 1, a kind of low-voltage electric power cable used for nuclear, include by more tinned copper wires 1 be twisted bunchy form it is multiple Conductor, each conductor have been respectively coated by exhausted outside crosslinking with radiation halogen-free polyolefin inner insulating layer 2 and crosslinking with radiation halogen-free polyolefin outside Edge layer 3, the double-deck He of high temperature resistant lapping layer 4 is also respectively coated by outside the crosslinking with radiation halogen-free polyolefin external insulation layer of each conductor 5, double-deck high temperature resistant lapping layer is high-temperature resistant membrane lapping layer 4 and high-temperature fibre lapping layer 5 respectively, the multiple conductor it is double Fiberglass gridding cloth inner liner 6 is coated with outside layer high temperature resistant lapping layer jointly, is also coated outside fiberglass gridding cloth inner liner There is irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer 7;The filling non-hygroscopic Halogen resistance in fiberglass gridding cloth inner liner 6 Combustible material 9.
Filling is provided between fiberglass gridding cloth inner liner 6 and irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer 7 Layer 8, packed layer 8 is interior to be filled with high temperature oxidation resisting magnesium ceramic powders.
The pristine tensile strength and elongation at break of the inside and outside insulating barrier and external sheath layer can reach 9.0N/mm2 and More than 200%.

Claims (3)

1. a kind of low-voltage electric power cable used for nuclear, include the multiple conductors for being twisted bunchy by more tinned copper wires and being formed, its It is characterised by:It has been respectively coated by outside each conductor outside crosslinking with radiation halogen-free polyolefin inner insulating layer and crosslinking with radiation halogen-free polyolefin Insulating barrier, double-deck high temperature resistant lapping layer is also respectively coated by outside the crosslinking with radiation halogen-free polyolefin external insulation layer of each conductor, Double-deck high temperature resistant lapping layer is high-temperature resistant membrane lapping layer and high-temperature fibre lapping layer respectively, the multiple conductor it is double-deck resistance to Fiberglass gridding cloth inner liner is coated with outside high temperature lapping layer jointly, irradiation is also wrapped on outside fiberglass gridding cloth inner liner Crosslinked halogen-free polyolefin flame-retardant external sheath layer;Non-hygroscopic bittern-free flame-proof material is filled in fiberglass gridding cloth inner liner.
A kind of 2. low-voltage electric power cable used for nuclear according to claim 1, it is characterised in that:In fiberglass gridding cloth Packed layer is provided between inner liner and irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer, high temperature oxidation resisting is filled with packed layer Magnesium ceramic powders.
A kind of 3. low-voltage electric power cable used for nuclear according to claim 1, it is characterised in that:The inside and outside insulating barrier It can reach 9.0N/mm2 and more than 200% with the pristine tensile strength and elongation at break of external sheath layer.
CN201710478839.XA 2017-06-22 2017-06-22 Low-voltage electric power cable used for nuclear Pending CN107342135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710478839.XA CN107342135A (en) 2017-06-22 2017-06-22 Low-voltage electric power cable used for nuclear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710478839.XA CN107342135A (en) 2017-06-22 2017-06-22 Low-voltage electric power cable used for nuclear

Publications (1)

Publication Number Publication Date
CN107342135A true CN107342135A (en) 2017-11-10

Family

ID=60220941

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710478839.XA Pending CN107342135A (en) 2017-06-22 2017-06-22 Low-voltage electric power cable used for nuclear

Country Status (1)

Country Link
CN (1) CN107342135A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109767862A (en) * 2019-01-10 2019-05-17 武汉市江华电线电缆有限责任公司 A kind of fireproof cable

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201369187Y (en) * 2009-03-25 2009-12-23 上海电缆厂有限公司 Control cable for nuclear power station
CN203118665U (en) * 2013-02-25 2013-08-07 宝胜科技创新股份有限公司 Network cable for AP1000 nuclear power plant
CN203433870U (en) * 2013-08-19 2014-02-12 宝胜科技创新股份有限公司 High-temperature resistant flexible intermediate frequency water-cooled cable
US20160358693A1 (en) * 2014-08-26 2016-12-08 Shandong Hualing Gable Co.Ltd. Class 1E cable for third generation passive nuclear power plant in mild environment and manufacturing method thereof
CN106531312A (en) * 2016-12-26 2017-03-22 常州八益电缆股份有限公司 Nuclear power plant cable and production method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201369187Y (en) * 2009-03-25 2009-12-23 上海电缆厂有限公司 Control cable for nuclear power station
CN203118665U (en) * 2013-02-25 2013-08-07 宝胜科技创新股份有限公司 Network cable for AP1000 nuclear power plant
CN203433870U (en) * 2013-08-19 2014-02-12 宝胜科技创新股份有限公司 High-temperature resistant flexible intermediate frequency water-cooled cable
US20160358693A1 (en) * 2014-08-26 2016-12-08 Shandong Hualing Gable Co.Ltd. Class 1E cable for third generation passive nuclear power plant in mild environment and manufacturing method thereof
CN106531312A (en) * 2016-12-26 2017-03-22 常州八益电缆股份有限公司 Nuclear power plant cable and production method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109767862A (en) * 2019-01-10 2019-05-17 武汉市江华电线电缆有限责任公司 A kind of fireproof cable

Similar Documents

Publication Publication Date Title
CN107134303A (en) Instrument cable for nuclear power station
CN205028678U (en) Medium voltage fireproof cable
CN201369187Y (en) Control cable for nuclear power station
CN202632869U (en) Aluminum-core low-smoke halogen-free flame-retardant medium-voltage flame-resistant cable
CN201130548Y (en) Complete performance nuclear power plant cable
CN107342135A (en) Low-voltage electric power cable used for nuclear
CN107230530A (en) Control cable for nuclear power station
CN205645366U (en) Third generation is low voltage power cable for nuclear power station
CN209880225U (en) Self-supporting fire-resistant waterproof computer cable
CN201707953U (en) Photovoltaic cable
CN208796710U (en) Low smoke and zero halogen copper core polyethylene-insulated power cable
CN207868564U (en) The power cord of heat-resistant fireproof
CN203118654U (en) Fireproof radiation-resistant cable for nuclear island of nuclear power station
CN102956293A (en) Compensation cable for nuclear power plant
CN202871367U (en) Fireproof single-core medium-voltage cable
CN201965976U (en) Instrument cable for nuclear power station
CN205881491U (en) Photovoltaic power plant is with low temperature resistant tied in a bundle direct current aluminum alloy cable
CN202076041U (en) Concentric conductor fire-resistant power cable
CN104700938A (en) Cable device
CN203787136U (en) High-temperature-resistant high-voltage tensile reinforced shield flat cable
CN104575713A (en) Special instrument cable for nuclear power plant
CN204651066U (en) A kind of lv power cable
CN203552731U (en) A special instrument cable used for a nuclear power station
CN102956324A (en) Low-voltage power cable for nuclear power station
CN211578435U (en) Fire-resistant high temperature resistant super soft silica gel wind energy cable

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20171110