CN107230530A - Control cable for nuclear power station - Google Patents
Control cable for nuclear power station Download PDFInfo
- Publication number
- CN107230530A CN107230530A CN201710478782.3A CN201710478782A CN107230530A CN 107230530 A CN107230530 A CN 107230530A CN 201710478782 A CN201710478782 A CN 201710478782A CN 107230530 A CN107230530 A CN 107230530A
- Authority
- CN
- China
- Prior art keywords
- layer
- coated
- temperature resistant
- lapping layer
- outside
- 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.)
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Classifications
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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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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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
-
- 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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- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of control cable for nuclear power station, include the multiple conductors being made up of many stranded bunchys of tinned copper wire, it is coated with the outer lapping layer of lapping layer, high-temperature fibre in inside and outside insulating barrier and high-temperature resistant membrane outside each conductor successively respectively, it is coated with jointly by fiberglass gridding cloth inner liner and lapping layer outside the outer lapping layer of the high-temperature fibre of multiple conductors, provided with high temperature resistant bonding layer between inner liner and lapping layer, lapping layer is coated with the enhancement layer being made up of nylon yarn and dacron thread braiding, strengthens being coated with high-temperature resistant coating in layer surface；Tinned copper wire woven shield and external sheath layer are coated with outside described enhancement layer successively.Invention increases high temperature resistant lapping layer, high temperature resistant bonding layer and high-temperature resistant coating structure, the properties of insulated wire cores at high operating temperatures are effectively guaranteed, cable overall performance is also obviously improved.
Description
Technical field：
The present invention relates to cable, mainly a kind of used in nuclear power station 1E grades of 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, are also an important channel for solving 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.
Nuclear power generating equipment manufacture has higher monopoly, and equipment investment accounts for 50% or so of nuclear power station gross investment, wherein nuclear island with
The Investment portion of conventional island is about 2：1.Cables of nuclear power is used as one of important electric auxiliary products of nuclear power station, its use environment
Harshness, security requirement is strict, is that performance level requires high, the larger electric wire kind of manufacturing technology difficulty.In " safety the
Under one " nuclear power objective is instructed, nuclear plant safety problem is just particularly important, and countries in the world all take strict peace to nuclear power station
Full measure.It is also safe key element as nuclear power " blood vessel " and the cable routing systems of " nerve ", cable routing systems exist
Very important effect is played in terms of the normal operation of nuclear power station and safe shutdown.Major cores having gone into operation at present and building
In power station, the K3 class nuclear grade cables only outside containment are had started to progressively domesticize, and harsh and unforgiving environments are used（K1 classes）Cables most
Import is all relied on, according to the construction demand of Chinese following nuclear power, nuclear grade cable wide market.In nuclear power industry, control
Cable focuses on the security of signal transmission, and it is not required nothing more than has preferable insulating properties, while also having preferable high temperature resistant high
Anti-flammability.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of control cable for nuclear power station, to solve the skill of prior art presence
Art problem.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of control cable for nuclear power station, includes the multiple conductors being made up of many stranded bunchys of tinned copper wire, and its feature exists
In：It has been respectively coated by outside each conductor exhausted outside irradiation crosslinking halogen-free polyolefin inner insulating layer and irradiation crosslinking halogen-free polyolefin flame-retardant
Edge layer, has also been respectively coated by wrapped in high-temperature resistant membrane outside the irradiation crosslinking halogen-free polyolefin flame-retardant external insulation layer of each conductor
It is coated with jointly by glass fibre outside layer and the outer lapping layer of high-temperature fibre, the outer lapping layer of high-temperature fibre of the multiple conductor
Grid cloth inner liner, fiberglass gridding cloth inner liner is coated with the wrapped lapping layer constituted overlapping by weaving band, in glass
Provided with high temperature resistant bonding layer between glass fibrous mesh cloth inner liner and weaving band lapping layer, outside described weaving band lapping layer
The enhancement layer being made up of nylon yarn and dacron thread braiding is coated with, strengthens being coated with high-temperature resistant coating in layer surface；Described adds
Tinned copper wire woven shield and irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer are coated with successively outside strong layer；In described glass
Filling in packed layer, packed layer is provided with glass fibrous mesh cloth inner liner and extrudes non-hygroscopic bittern-free flame-proof material.
A kind of described control cable for nuclear power station, it is characterised in that：The outer lapping layer of described high-temperature fibre is resistance to height
The outer lapping layer of warm ceramic fibre.
Conductor of the present invention uses the 2nd class tinned copper conductor.
Innovative point of the present invention：
（1）Carry out material beta ray and gamma-rays transfer test at home first
Due to the limitation of current experimental condition, β ray tests device is still difficult to carry out radiation aging experiment to batch cable, to ensure
The continuity of experiment, my company carries out β rays and gamma-rays transfer test to identical material, and model is calculated with reference to center group heap work
Enclose, experiment draws β rays and gamma-rays conversion proportion, LOCA radiation agings carried out using whole cable of conversion proportion relation pair,
Ensure test validity.
（2）Electric performance test is carried out after immersion test, design requirement is met
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.
（3）Optimize product structure, increase high temperature resistant lapping layer
This time the insulation of research and development core is extruded using irradiation polyolefin bilayer, it is ensured that its electrical property meets design requirement, but because of polyene
The resistance to elevated temperatures of hydrocarbon material is relatively low, to ensure that cable is normally used 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.
The present invention is suitable for low-voltage ac signal control system inside and outside three generations's nuclear power plant containment shell, and the cable is using insulation
Double-layer coextrusion technique, insulated wire cores have high temperature resistant, high flame resistance while high electrical insulation properties are ensured, while stranding
The screen layer that core outer cladding is woven by tinned copper wire, can effectively shield outside electromagnetic interference.
It is an advantage of the invention that：
Control cable for nuclear power station of the present invention adds high temperature resistant lapping layer, high temperature resistant bonding layer and high-temperature resistant coating structure, has
The properties of insulated wire cores at high operating temperatures are ensure that to effect, cable overall performance is also obviously improved.
Brief description of the drawings：
Fig. 1 is structural representation of the invention.
Embodiment：
Referring to Fig. 1, a kind of control cable for nuclear power station includes the multiple conductors being made up of many stranded bunchys of tinned copper wire 1,
Irradiation crosslinking halogen-free polyolefin inner insulating layer 2 and irradiation crosslinking halogen-free polyolefin flame-retardant external insulation have been respectively coated by outside each conductor
Layer 3, has also been respectively coated by wrapped in high-temperature resistant membrane outside the irradiation crosslinking halogen-free polyolefin flame-retardant external insulation layer of each conductor
It is coated with jointly by glass fibers outside layer 4 and the outer lapping layer 5 of high-temperature fibre, the outer lapping layer of high-temperature fibre of the multiple conductor
Grid cloth inner liner 6 is tieed up, fiberglass gridding cloth inner liner 6 is coated with the wrapped lapping layer 7 constituted overlapping by weaving band,
Provided with high temperature resistant bonding layer 12, described weaving band between fiberglass gridding cloth inner liner 6 and weaving band lapping layer 7
Lapping layer 7 is coated with the enhancement layer 8 being made up of nylon yarn and dacron thread braiding, strengthens being coated with high temperature resistant painting in layer surface
Material；Described enhancement layer 8 is outer to be coated with tinned copper wire woven shield 9 and irradiation crosslinking halogen-free polyolefin flame-retardant oversheath successively
Layer 10；Filling in packed layer 11, packed layer is provided with described fiberglass gridding cloth inner liner 6 and extrudes non-hygroscopic Halogen
Fire proofing.
The outer lapping layer 5 of described high-temperature fibre is the outer lapping layer of pyroceram fibre.
Claims (2)
1. a kind of control cable for nuclear power station, includes the multiple conductors being made up of many stranded bunchys of tinned copper wire, its feature
It is：It has been respectively coated by outside each conductor outside irradiation crosslinking halogen-free polyolefin inner insulating layer and irradiation crosslinking halogen-free polyolefin flame-retardant
Insulating barrier, be also respectively coated by high-temperature resistant membrane outside the irradiation crosslinking halogen-free polyolefin flame-retardant external insulation layer of each conductor around
It is coated with jointly by glass fibers outside covering and the outer lapping layer of high-temperature fibre, the outer lapping layer of high-temperature fibre of the multiple conductor
Grid cloth inner liner is tieed up, fiberglass gridding cloth inner liner is coated with the wrapped lapping layer constituted overlapping by weaving band,
Provided with high temperature resistant bonding layer, described weaving band lapping layer between fiberglass gridding cloth inner liner and weaving band lapping layer
The enhancement layer being made up of nylon yarn and dacron thread braiding is coated with, strengthens being coated with high-temperature resistant coating in layer surface；Described
Tinned copper wire woven shield and irradiation crosslinking halogen-free polyolefin flame-retardant external sheath layer are coated with outside enhancement layer successively；Described
Filling in packed layer, packed layer is provided with fiberglass gridding cloth inner liner and extrudes non-hygroscopic bittern-free flame-proof material.
2. a kind of control cable for nuclear power station according to claim 1, it is characterised in that：Described high-temperature fibre it is outer around
Covering is the outer lapping layer of pyroceram fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478782.3A CN107230530A (en) | 2017-06-22 | 2017-06-22 | Control cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478782.3A CN107230530A (en) | 2017-06-22 | 2017-06-22 | Control cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107230530A true CN107230530A (en) | 2017-10-03 |
Family
ID=59936098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710478782.3A Pending CN107230530A (en) | 2017-06-22 | 2017-06-22 | Control cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107230530A (en) |
Cited By (2)
| 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 |
| CN112420250A (en) * | 2020-11-11 | 2021-02-26 | 江苏铭阳线缆有限公司 | Novel cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004348Y (en) * | 2006-12-29 | 2008-01-09 | 上海藤仓橡塑电缆有限公司 | Power cable for nuclear power station |
| CN201369187Y (en) * | 2009-03-25 | 2009-12-23 | 上海电缆厂有限公司 | Control cable for nuclear power station |
| CN101719396A (en) * | 2009-12-29 | 2010-06-02 | 上海电缆研究所 | Radiation-resistant polyimide film insulating cable with high bonding strength and method for producing same |
| CN106373635A (en) * | 2016-08-26 | 2017-02-01 | 江苏上上电缆集团有限公司 | High-temperature resistant cable for nuclear power plant and fabrication method of cable |
| 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 |
-
2017
- 2017-06-22 CN CN201710478782.3A patent/CN107230530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004348Y (en) * | 2006-12-29 | 2008-01-09 | 上海藤仓橡塑电缆有限公司 | Power cable for nuclear power station |
| CN201369187Y (en) * | 2009-03-25 | 2009-12-23 | 上海电缆厂有限公司 | Control cable for nuclear power station |
| CN101719396A (en) * | 2009-12-29 | 2010-06-02 | 上海电缆研究所 | Radiation-resistant polyimide film insulating cable with high bonding strength and method for producing same |
| CN106373635A (en) * | 2016-08-26 | 2017-02-01 | 江苏上上电缆集团有限公司 | High-temperature resistant cable for nuclear power plant and fabrication method of cable |
| 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 (2)
| 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 |
| CN112420250A (en) * | 2020-11-11 | 2021-02-26 | 江苏铭阳线缆有限公司 | Novel cable |
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| 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: 20171003 |