CN103794282A - Power cable for nuclear power plant - Google Patents
Power cable for nuclear power plant Download PDFInfo
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- CN103794282A CN103794282A CN201210423793.9A CN201210423793A CN103794282A CN 103794282 A CN103794282 A CN 103794282A CN 201210423793 A CN201210423793 A CN 201210423793A CN 103794282 A CN103794282 A CN 103794282A
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Abstract
The invention discloses a power cable for a nuclear power plant. The power cable comprises three conductors and insulating layers, outer sides of the three conductors are wrapped by fireproof layers and insulating layers respectively, after the conductors are wrapped by the insulating layers, three cores are intertwisted into bundles, after bundling, an outer side of a cable core is wrapped by a belting layer, a magnesium hydrate filling layer is arranged between the belting layer and the insulating layers, an outer side of the belting layer is wrapped by a lining layer and an armor layer, the armor layer adopts double-steel-belt wrapping, the overlap rate of wrapping is not smaller than 60%, an outer side of the armor layer is wrapped by a high flame-retardant low-smoke halogen-free radiation-proof ozone-proof polyolefin sheath layer, and a cross section of the conductors is 1.5 to 300 mm<2>. The power cable for the nuclear power plant satisfies performance indexes of low smoke, no halogen, flame retardancy and the like which are required by a cable for the nuclear power plant, and also solves the problems of radiation protection and corrosion protection.
Description
Technical field
The present invention relates to cable industry, be specifically related to a kind of power cable for nuclear power plant.
Background technology
In recent years, wires and cables industry excess production capacity, with low content of technology, whole industry development slowly becomes long-standing asking
Topic.Cable enterprise strives to find breach, and new forms of energy cable high in technological content, that adapt to future market demand becomes master
Stream.Be different from normal cable, there is the new forms of energy cable of leading superiority, become gradually the focus of cable competition among enterprises.
Cable for nuclear power station is mainly distributed in nuclear island, conventional island, is used as electric power transfer and control, computer, Instrument connection etc.The kind of the required cable of nuclear power station is basic identical with thermal power station, but because cables of nuclear power is very strict to technical property requirements such as Halogen, low cigarette, low toxicities, therefore, for now, China only can produce nuclear island periphery electric wire, and the most dependence on import of the cable of all the other application.
Traditional cable for nuclear power station is a topic being difficult to resolve for fire-resistant in actual working environment, Anticorrosion Problems always.
Summary of the invention
The invention provides a kind of power cable for nuclear power plant, met cable for nuclear power station and there are low cigarette, Halogen, the performance index such as fire-retardant, also solved radiation proof, Anticorrosion Problems simultaneously.
The solution of the present invention is as follows: a kind of power cable for nuclear power plant, comprise three conductors, insulating barrier, three described conductor outsides are enclosed with respectively flame retardant coating, insulating barrier, three stranded bunchys of core after wrap insulate layer, after bunchy, cable core outside is enclosed with belting layer, between described belting layer and insulating barrier, be provided with magnesium hydroxide packed layer, described belting layer outside is enclosed with inner covering, armour, described armour adopts two steel bands wrapped, the wrapped rate of putting up is not less than 60%, described armour outside is enclosed with the anti-ozone polyolefin jacket of high flame resistance, low smoke Halogen radiation proof layer, it is 1.5～300 mm that described cross-sectional area of conductor amasss
2.
Described insulating layer material is flame-proof cross-linking polyolefin.
Described flame retardant coating material is two-sided compound muscovite.
Described belting layer adopts the overlapping wrapped formation of one or more layers fire-retardant oxygen barrier band.
Described inner covering adopts the anti-ozone polyolefin of high flame resistance, low smoke Halogen radiation proof to extrude formation.
Armour of the present invention adopts galvanized steel strip to form, and has good mechanical protection performance, with flame-proof cross-linking polyolefine material be insulation, there is good fire resistance; Adopt magnesium hydroxide to fill the further cable fire-proof performance that strengthened, adopt the anti-ozone polyolefin of high flame resistance, low smoke Halogen radiation proof to extrude, can effectively prevent not raying of cable and ozone layer destroying.Halogen gas, gas pH value of water solution and the conductivity of when cable material burning, overflowing are low, have low-corrosiveness energy; When cable fire, generate smog few, and possess the performances such as wear-resisting, anti-tear, fire-resistant, resistance to ozone, corrosion-resistant, high flame retardant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of power cable for nuclear power plant, comprises that it is 1.5～300 mm that three conductor 1(cross-sectional area of conductor amass
2), insulating barrier 3, three conductor 1 outsides are enclosed with respectively flame retardant coating 2, insulating barrier 3, the mutual stranded bunchy of rear three conductors 1 of wrap insulate layer 2, after bunchy, insulating barrier 3 outsides are enclosed with belting layer 4, between belting layer 4 and insulating barrier 3, be provided with magnesium hydroxide as packed layer 5, belting layer 4 outsides are enclosed with inner covering 6, armour 7, armour 7 adopts galvanized steel strip, armour 7 outsides are enclosed with the anti-ozone polyolefin jacket of high flame resistance, low smoke Halogen radiation proof layer 8, insulating barrier 3 materials are flame-proof cross-linking polyolefin, belting layer 4 adopts the overlapping wrapped formation of one or more layers band, inner covering 6 adopts the anti-ozone polyolefine material of high flame resistance, low smoke Halogen radiation proof to extrude formation.
Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and revise; when its function producing does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (5)
1. a power cable for nuclear power plant, comprise three conductors, insulating barrier, it is characterized in that: three described conductor outsides are enclosed with respectively flame retardant coating, insulating barrier, three stranded bunchys of core after wrap insulate layer, after bunchy, cable core outside is enclosed with belting layer, between described belting layer and insulating barrier, be provided with magnesium hydroxide packed layer, described belting layer outside is enclosed with inner covering, armour, described armour adopts two steel bands wrapped, the wrapped rate of putting up is not less than 60%, described armour outside is enclosed with the anti-ozone polyolefin jacket of high flame resistance, low smoke Halogen radiation proof layer, it is 1.5～300mm that described cross-sectional area of conductor amasss
2.
2. power cable for nuclear power plant according to claim 1, is characterized in that: described insulating layer material is flame-proof cross-linking polyolefin.
3. power cable for nuclear power plant according to claim 1, is characterized in that: described flame retardant coating material is two-sided compound muscovite.
4. power cable for nuclear power plant according to claim 1, is characterized in that: described belting layer adopts the overlapping wrapped formation of one or more layers fire-retardant oxygen barrier band.
5. power cable for nuclear power plant according to claim 1, is characterized in that: described inner covering adopts the anti-ozone polyolefin of high flame resistance, low smoke Halogen radiation proof to extrude formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423793.9A CN103794282A (en) | 2012-10-30 | 2012-10-30 | Power cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210423793.9A CN103794282A (en) | 2012-10-30 | 2012-10-30 | Power cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103794282A true CN103794282A (en) | 2014-05-14 |
Family
ID=50669854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210423793.9A Pending CN103794282A (en) | 2012-10-30 | 2012-10-30 | Power cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103794282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251968A (en) * | 2016-08-31 | 2016-12-21 | 扬州曙光电缆股份有限公司 | A kind of generation Ⅲ nuclear power station hinge polyolefin insulation fire-proof medium-voltage cable |
| CN106653167A (en) * | 2016-08-31 | 2017-05-10 | 扬州曙光电缆股份有限公司 | Crosslinked polymer composite insulated control cable used for third generation of nuclear power station |
| CN106710692A (en) * | 2016-08-31 | 2017-05-24 | 江苏赛德电气有限公司 | Flexible fireproof cable |
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
-
2012
- 2012-10-30 CN CN201210423793.9A patent/CN103794282A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251968A (en) * | 2016-08-31 | 2016-12-21 | 扬州曙光电缆股份有限公司 | A kind of generation Ⅲ nuclear power station hinge polyolefin insulation fire-proof medium-voltage cable |
| CN106653167A (en) * | 2016-08-31 | 2017-05-10 | 扬州曙光电缆股份有限公司 | Crosslinked polymer composite insulated control cable used for third generation of nuclear power station |
| CN106710692A (en) * | 2016-08-31 | 2017-05-24 | 江苏赛德电气有限公司 | Flexible fireproof cable |
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |