CN202736565U - Power cable used for nuclear power station - Google Patents
Power cable used for nuclear power station Download PDFInfo
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- CN202736565U CN202736565U CN 201220373086 CN201220373086U CN202736565U CN 202736565 U CN202736565 U CN 202736565U CN 201220373086 CN201220373086 CN 201220373086 CN 201220373086 U CN201220373086 U CN 201220373086U CN 202736565 U CN202736565 U CN 202736565U
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- nuclear power
- power cable
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Abstract
The utility model discloses a power cable used for a nuclear power station. The power cable comprises three conductors and insulation layers. The outside of each conductor is wrapped with a fireproof layer and the insulation layer respectively. Three cores are intertwisted into a bundle after being coated with the insulation layers, and then the outside of a cable core is wrapped with a wrapping belt layer after bundling. A magnesium hydroxide filling layer is arranged between the wrapping belt layer and the insulation layers. The outside of the wrapping belt layer is wrapped with an inside liner and an armor layer. The armor layer adopts wrapping of double steel belts and the wrapping overlapped rate is not less than 60%. The outside of the armor layer is wrapped with a polyolefin sheath layer of high flame retardation, low smoke, no halogen, ray proofing and ozone proofing. The sectional area of the conductors is 1.5-300 square meters. The power cable meets performance indexes required by cables used for the nuclear power station of low smoke, no halogen, flame retardation, etc., and at the same time solves the problem of radiation proofing and corrosion prevention.
Description
Technical field
The utility model relates to cable industry, is 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 the breach, and new forms of energy cable high in technological content, that adapt to the future market demand becomes the master
Stream.Be different from normal cable, have the new forms of energy cable of leading superiority, become gradually the focus of cable competition among enterprises.
Cable for nuclear power station mainly is 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 the nuclear island periphery and use 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 that is difficult to resolve for fire-resistant in the actual working environment, Anticorrosion Problems always.
The utility model content
The utility model provides a kind of power cable for nuclear power plant, has satisfied cable for nuclear power station and has had low cigarette, Halogen, the performance index such as fire-retardant, has also solved simultaneously radiation proof, Anticorrosion Problems.
Scheme of the present utility model is as follows: a kind of power cable for nuclear power plant, comprise three conductors, insulating barrier, described three conductors outside is enclosed with respectively flame retardant coating, insulating barrier, three stranded bunchys of core behind the wrap insulate layer, the cable core outside is enclosed with belting layer behind the bunchy, be provided with the magnesium hydroxide packed layer between described belting layer and the insulating barrier, the 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%, and the described armour outside is enclosed with the anti-ozone polyolefin jacket layer of high flame resistance, low smoke Halogen radiation proof; Described cross-sectional area of conductor is long-pending to be 1.5～300 mm
2
Described insulating layer material is the 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 utility model adopts galvanized steel strip to consist of, and has good mechanical protection performance, is insulation with the flame-proof cross-linking polyolefine material, has 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 overflowing during the cable material burning are low, have the low-corrosiveness energy; It is few to generate smog during cable fire, and possesses the performances such as wear-resisting, anti-tear, fire-resistant, anti-ozone, corrosion-resistant, high flame retardant.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
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, wrap insulate layer 2 rear three conductors, 1 mutual stranded bunchy, insulating barrier 3 outsides are enclosed with belting layer 4 behind the bunchy, be provided with magnesium hydroxide as packed layer 5 between belting layer 4 and the insulating barrier 3, 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 layer 8 of high flame resistance, low smoke Halogen radiation proof, insulating barrier 3 materials are the flame-proof cross-linking polyolefin, belting layer 4 adopts the overlapping wrapped formation of one or more layers band, and inner covering 6 adopts the anti-ozone polyolefine material of high flame resistance, low smoke Halogen radiation proof to extrude formation.
Although above embodiment of the present utility model 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 utility model and change and modification; when its function that produces does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection range of the present utility model.
Claims (5)
1. power cable for nuclear power plant, comprise three conductors, insulating barrier, it is characterized in that: described three conductors outside is enclosed with respectively flame retardant coating, insulating barrier, three stranded bunchys of core behind the wrap insulate layer, the cable core outside is enclosed with belting layer behind the bunchy, be provided with the magnesium hydroxide packed layer between described belting layer and the insulating barrier, the 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%, and the described armour outside is enclosed with the anti-ozone polyolefin jacket layer of high flame resistance, low smoke Halogen radiation proof; Described cross-sectional area of conductor is long-pending to be 1.5～300mm
2
2. power cable for nuclear power plant according to claim 1, it is characterized in that: described insulating layer material is the flame-proof cross-linking polyolefin.
3. power cable for nuclear power plant according to claim 1, it 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, it 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 |
|---|---|---|---|
| CN 201220373086 CN202736565U (en) | 2012-07-30 | 2012-07-30 | Power cable used for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373086 CN202736565U (en) | 2012-07-30 | 2012-07-30 | Power cable used for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736565U true CN202736565U (en) | 2013-02-13 |
Family
ID=47662240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220373086 Expired - Fee Related CN202736565U (en) | 2012-07-30 | 2012-07-30 | Power cable used for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871600A (en) * | 2014-02-27 | 2014-06-18 | 安徽复兴电缆集团有限公司 | Power cable used for nuclear power plant |
| 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 |
| CN109390083A (en) * | 2018-12-03 | 2019-02-26 | 宝胜科技创新股份有限公司 | A kind of nuclear power station detection cable |
-
2012
- 2012-07-30 CN CN 201220373086 patent/CN202736565U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871600A (en) * | 2014-02-27 | 2014-06-18 | 安徽复兴电缆集团有限公司 | Power cable used for nuclear power plant |
| 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 |
| CN109390083A (en) * | 2018-12-03 | 2019-02-26 | 宝胜科技创新股份有限公司 | A kind of nuclear power station detection cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130730 |