CN112309628A - Cable for nuclear power station - Google Patents
Cable for nuclear power station Download PDFInfo
- Publication number
- CN112309628A CN112309628A CN202011030262.4A CN202011030262A CN112309628A CN 112309628 A CN112309628 A CN 112309628A CN 202011030262 A CN202011030262 A CN 202011030262A CN 112309628 A CN112309628 A CN 112309628A
- Authority
- CN
- China
- Prior art keywords
- layer
- insulating layer
- cable
- nuclear power
- power plant
- 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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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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
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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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
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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
Abstract
The invention discloses a cable for a nuclear power station. The cable for the nuclear power station comprises a plurality of conductors, a high insulating layer, a first insulating layer, a second insulating layer, a filling layer, a shielding layer, a sheath, a winding armor layer, a protective layer and an outer sheath layer. The cable is characterized in that the conductor is wrapped with a high insulating layer, the high insulating layer is wrapped with a first insulating layer, the first insulating layer is wrapped with a second insulating layer, the stranded conductors, the high insulating layer, the first insulating layer and the second insulating layer form an insulating wire core, the filling layer is filled between the insulating wire cores, the outer portion of the filling layer is wrapped with a shielding layer, and the outer portion of the shielding layer is sequentially wrapped with a sheath, a winding armor layer, a protective layer and an outer sheath layer. The invention can well protect the insulated wire core and has excellent high temperature resistance, flame retardant property, radiation aging resistance and mechanical property.
Description
Technical Field
The invention relates to the technical field of cables for nuclear power stations, in particular to a cable for a nuclear power station.
Background
From the analysis of the wire and cable industry in China, equipment and product development are further improved on the current cable manufacturing technical level, and the localization rate of the wire and cable can reach more than 95%. According to the measurement and calculation of Shanghai cable research institute, at present, the annual demand of domestic nuclear power station cables in China is more than 6000km, the annual demand is increased by 20% every year, the international market demand is more than 30 km, the cables for the nuclear power station have wide market prospects, and the cables for the nuclear power station have good economic value and social benefit in development and production, but the existing cables for the nuclear power station have poor flame retardant property, and need to be improved in long-term irradiation aging property and safety.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a cable for a nuclear power plant, which is used to solve the problems of poor flame retardant performance, long-term radiation aging performance and safety improvement of the cable for a nuclear power plant in the prior art.
To achieve the above and other related objects, there is provided a cable for a nuclear power plant, the cable for a nuclear power plant including:
a multi-strand conductor having a high insulating layer coated thereon;
a plastic layer coated with a first insulating layer;
a first insulating layer on which a second insulating layer is coated;
the multi-strand conductor, the high insulating layer, the first insulating layer and the second insulating layer form an insulating wire core;
the filling layer is filled between the insulated wire cores, and a shielding layer is coated outside the filling layer;
and the shielding layer is coated with a sheath, a winding armor layer, a protective layer and an outer sheath layer in sequence.
In an embodiment of the invention, the conductor is a stranded tin-plated copper conductor.
In an embodiment of the present invention, the high insulation layer is a polyimide film wrapping layer.
In an embodiment of the invention, the first insulating layer is a radiation cross-linked polyethylene inner insulating layer.
In an embodiment of the invention, the second insulation layer is an outer insulation layer of radiation cross-linked polyolefin.
In an embodiment of the present invention, the filling layer is a mineral filling rope.
In an embodiment of the present invention, the sheath is a low smoke halogen-free flame retardant cross-linked polyolefin sheath.
In an embodiment of the present invention, the wound armor layer is a nanoscale diamond film aluminum alloy tape wound armor layer.
In an embodiment of the invention, the protective layer is an anti-aging and anti-puncturing halogen-free rubber protective layer.
In an embodiment of the present invention, the outer sheath layer is a halogen-free low-smoke flame-retardant rubber outer sheath layer.
As described above, the cable for a nuclear power plant according to the present invention has the following advantages:
the cable for the nuclear power station comprises a plurality of strands of tinned conductors, a high insulating layer, a first insulating layer, a second insulating layer, a filling layer, a shielding layer, a sheath, a winding armor layer, a protective layer and an outer sheath layer. The invention can well protect the insulated wire core and has excellent high temperature resistance, flame retardant property, radiation aging resistance and mechanical property.
The cable for the nuclear power station has the advantages of strong electrical property, insulation property and flame retardant property, compact and round structure, and can completely meet the performance requirements of the cable for the nuclear power station.
Drawings
Fig. 1 is a schematic structural diagram of a cable for a nuclear power plant according to an embodiment of the present disclosure.
Description of the element reference numerals
1. Conductor 2, high insulation layer
3. First insulating layer 4, second insulating layer
5. Filling layer 6 and shielding layer
7. Sheath 8, winding armor
9. Protective layer 10, outer jacket layer
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a cable for a nuclear power plant according to an embodiment of the present disclosure. The invention provides a cable for a nuclear power plant, which is mainly applied to the nuclear power plant and comprises but is not limited to a multi-strand conductor 1, a high insulating layer 2, a first insulating layer 3, a second insulating layer 4, a filling layer 5, a shielding layer 6, a cladding sheath 7, a winding armor layer 8, a protective layer 9 and an outer sheath layer 10. The utility model discloses a cable, including conductor 1, high insulating layer 2, first insulating layer 3, packing layer 5, shielding layer 6, the outside cladding of shielding layer 6 has sheath 7, winding armor 8, protective layer 9 and oversheath layer 10 in proper order, the cladding has high insulating layer 2 on the conductor 1, the cladding has first insulating layer 3 on the high insulating layer 2, the cladding has second insulating layer 4 on the first insulating layer 3, stranded conductor 1, high insulating layer 2, first insulating layer 3, second insulating layer 4 constitute insulating core, packing layer 5 fill in between the insulating core, the outside cladding of packing layer 5 has shielding layer 6, shielding layer 6's outside has the cladding in proper.
As shown in fig. 1, the conductor 1 is a stranded tin-plated copper conductor. The high insulating layer 2 is a polyimide film wrapping layer. The first insulating layer 3 is a radiation cross-linked polyethylene inner insulating layer. The second insulating layer 4 is an irradiation cross-linked polyolefin outer insulating layer. The filling layer is a mineral filling rope. The sheath 7 is a low-smoke halogen-free flame-retardant cross-linked polyolefin sheath. The winding armor layer 8 is a nanoscale diamond film aluminum alloy belt winding armor layer. The protective layer 9 is an anti-aging puncture-proof halogen-free rubber protective layer. The outer sheath layer 10 is a halogen-free low-smoke flame-retardant rubber outer sheath layer.
As shown in fig. 1, the high insulation layer is a polyimide film wrapping layer, and has a thickness of 0.02-0.15 mm, for example, the thickness of the high insulation layer may be 0.03mm, 0.05mm, 0.10mm, or the like.
As shown in fig. 1, the number of the conductors 1 may be, but is not limited to, 6, the conductors 1 are formed by twisting a plurality of strands of tin-plated copper monofilaments, the thickness of the high insulation layer 2 may be 0.10mm, the thickness of the first insulation layer 3 may be 0.2mm, and the thickness of the second insulation layer 4 may be 0.4mm, so that the long-term thermal aging resistance is good, the tensile strength is high, and the radiation resistance, the electrical performance stability and the flame retardancy are good. The shielding layer 6 is formed by wrapping a copper strip, the covering rate of the copper strip is not less than 50%, the shielding layer 6 shields external electromagnetic waves by the copper strip, and therefore current and signals of a load in a conductor cannot fluctuate due to imbalance of internal and external electromagnetic fields, and stability of a power supply and the signals is guaranteed. Meanwhile, the outer conductor of the cable is grounded during laying, so that the safety and protection effects are achieved.
In summary, the cable for a nuclear power plant of the present invention includes a multi-strand conductor 1, a high insulation layer 2, a first insulation layer 3, a second insulation layer 4, a filling layer 5, a shielding layer 6, a covering sheath 7, a winding armor layer 8, a protective layer 9, and an outer sheath layer 10. The invention can well protect the insulated wire core and has excellent high-temperature resistance and flame retardant property and mechanical property.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A cable for a nuclear power plant, characterized in that it comprises:
a multi-strand conductor having a high insulating layer coated thereon;
a plastic layer coated with a first insulating layer;
a first insulating layer on which a second insulating layer is coated;
the multi-strand conductor, the high insulating layer, the first insulating layer and the second insulating layer form an insulating wire core;
the filling layer is filled between the insulated wire cores, and a shielding layer is coated outside the filling layer;
and the shielding layer is coated with a sheath, a winding armor layer, a protective layer and an outer sheath layer in sequence.
2. A cable for a nuclear power plant according to claim 1, characterized in that: the conductor is a multi-strand tin-plated copper conductor.
3. A cable for a nuclear power plant according to claim 2, characterized in that: the high insulating layer is a polyimide film wrapping layer.
4. A cable for a nuclear power plant according to claim 3, characterized in that: the first insulating layer is an irradiation cross-linked polyethylene inner insulating layer.
5. A cable for a nuclear power plant according to claim 1, characterized in that: the second insulating layer is an irradiation cross-linked polyolefin outer insulating layer.
6. A cable for a nuclear power plant according to claim 1, characterized in that: the filling layer is a mineral filling rope.
7. A cable for a nuclear power plant according to claim 1, characterized in that: the sheath is a low-smoke halogen-free flame-retardant cross-linked polyolefin sheath.
8. A cable for a nuclear power plant according to claim 1, characterized in that: the winding armor layer is a nanoscale diamond film aluminum alloy belt winding armor layer.
9. A cable for a nuclear power plant according to claim 1, characterized in that: the protective layer is an anti-aging puncture-proof halogen-free rubber protective layer.
10. A cable for a nuclear power plant according to any one of claims 1 to 9, characterized in that: the outer sheath layer is a halogen-free low-smoke flame-retardant rubber outer sheath layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030262.4A CN112309628A (en) | 2020-09-27 | 2020-09-27 | Cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030262.4A CN112309628A (en) | 2020-09-27 | 2020-09-27 | Cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112309628A true CN112309628A (en) | 2021-02-02 |
Family
ID=74488636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011030262.4A Pending CN112309628A (en) | 2020-09-27 | 2020-09-27 | Cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112309628A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307214U (en) * | 2011-10-20 | 2012-07-04 | 天津六〇九电缆有限公司 | Special type high-temperature resistant composite insulation light cable |
| CN105976916A (en) * | 2016-03-14 | 2016-09-28 | 安徽华通电缆集团有限公司 | High flame-retardant power cable applied to nuclear power station |
| CN205943507U (en) * | 2016-08-30 | 2017-02-08 | 新亚特电缆股份有限公司 | Control cable for nuclear power station |
| 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 |
| CN206058980U (en) * | 2016-08-19 | 2017-03-29 | 江苏华光电缆电器有限公司 | A kind of nuclear power station harsh and unforgiving environments control cable |
| CN106816211A (en) * | 2015-11-27 | 2017-06-09 | 安徽中邦特种电缆科技有限公司 | A kind of high temperature resistant signal cable |
| CN209691431U (en) * | 2019-04-10 | 2019-11-26 | 江苏上上电缆集团有限公司 | A kind of long-life compensating cable of high pressure resistant resistance to high radiation dose rate |
-
2020
- 2020-09-27 CN CN202011030262.4A patent/CN112309628A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202307214U (en) * | 2011-10-20 | 2012-07-04 | 天津六〇九电缆有限公司 | Special type high-temperature resistant composite insulation light cable |
| CN106816211A (en) * | 2015-11-27 | 2017-06-09 | 安徽中邦特种电缆科技有限公司 | A kind of high temperature resistant signal cable |
| CN105976916A (en) * | 2016-03-14 | 2016-09-28 | 安徽华通电缆集团有限公司 | High flame-retardant power cable applied to nuclear power station |
| CN206058980U (en) * | 2016-08-19 | 2017-03-29 | 江苏华光电缆电器有限公司 | A kind of nuclear power station harsh and unforgiving environments control cable |
| CN205943507U (en) * | 2016-08-30 | 2017-02-08 | 新亚特电缆股份有限公司 | Control cable for nuclear power station |
| 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 |
| CN209691431U (en) * | 2019-04-10 | 2019-11-26 | 江苏上上电缆集团有限公司 | A kind of long-life compensating cable of high pressure resistant resistance to high radiation dose rate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |
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| RJ01 | Rejection of invention patent application after publication |