CN201838353U - Radiation-resistant anti-cracking cable used for nuclear power station - Google Patents
Radiation-resistant anti-cracking cable used for nuclear power station Download PDFInfo
- Publication number
- CN201838353U CN201838353U CN2010205768522U CN201020576852U CN201838353U CN 201838353 U CN201838353 U CN 201838353U CN 2010205768522 U CN2010205768522 U CN 2010205768522U CN 201020576852 U CN201020576852 U CN 201020576852U CN 201838353 U CN201838353 U CN 201838353U
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- Prior art keywords
- cable
- radiation
- power station
- nuclear power
- sheath
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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
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Abstract
The utility model relates to a radiation-resistant anti-cracking cable used for a nuclear power station, which belongs to the technical field of cables and comprises an insulated wire core, a shielding layer and a sheath, wherein the insulated wire core consists of a conductor coated with an insulation layer in an extruding mode, and the shielding layer and the sheath are arranged on a cable core of a cable formed by the insulated wire core. The cable is characterized in that the insulation layer consists of an internal insulation layer and an external insulation layer, and a radiation-resistant layer is arranged between the shielding layer and the sheath. The cable has reasonable and simple structure, is easy to produce, has low cost, good use performance, reliable service life, good thermal stability and moisture resistance and excellent electrical properties, physical and mechanical properties and radiation resistance, the sheath does not crack, and the cable can withstand higher radiation dose and has long service life. The cable is the ideal cable selected for a nuclear reactor plant, a nuclear auxiliary plant, a turbine plant and the like of the nuclear power station.
Description
Technical field
The utility model relates to a kind of radiation hardness cracking resistance used in nuclear power station cable, particularly has the structure of the radiation hardness anti-cracking performance cable of certain special property, belongs to the cable technology field.
Background technology
The used in nuclear power station cable is by comprising conductor, insulating barrier, formations such as cable core that screen is formed and oversheath, has reliable useful life, thermal stability, moisture resistance, good electric property, physical and mechanical properties, radiation resistance, the used in nuclear power station cable is mainly used in the nuclear reactor factory building, nuclear auxiliary building, the steam turbine factory building, in these occasions because of environment and need of work, when most of cable cover(ing) lays or to lay the back easy to crack, and cable holds radiation environment that can't stand that nuclear power station is strong, the cable in the nuclear island particularly, this just needs cable cover(ing) to have stronger mechanical performance, and cable has stronger radiation resistance, the material prescription of employing improvement in the past improves the mechanical performance of sheath material and the radiation resistance of cable can only solve subproblem, cable cover(ing) problem easy to crack and cable radiation hardness problem fail fundamentally to solve under strong radiation of nuclear power station and rugged environment, this type of problem needs only and takes place to cause the wasting of resources, and causes difficulty and major safety risks to construction.
The utility model content
The purpose of this utility model is exactly the deficiency that exists at above-mentioned existing cable, providing a kind of has reliable useful life, thermal stability, moisture resistance, good electric property, physical and mechanical properties, radiation resistance, sheath do not ftracture, cable can bear the radiation hardness cracking resistance used in nuclear power station cable than large radiation dosage.
The purpose of this utility model is to realize like this, radiation hardness cracking resistance used in nuclear power station cable, comprise the screen and the sheath that are provided with on the insulated wire cores of extruded insulation layer on the conductor and the cable core by the insulated wire cores stranding, it is characterized in that described insulating barrier for to be made of inside and outside insulating barrier, is provided with the radiation hardness layer between described screen and the sheath.
Described conductor is to meet the 2nd class conductor that GB/T3956-2008 requires.
The thickness proportion of described inside and outside insulating barrier is 1: 2.
The material of described inner insulating layer is a plain edition cross-linking radiation polyolefin, and the material of external insulation layer is a low smoke and zero halogen cross-linking radiation polyolefin.
Described screen requires copper wire braid or copper strips lapping layer for meeting GB/T9330-2008.
Described radiation hardness layer is a si4N3 fabric strip lapping layer.
Described sheath material is the irradiated crosslinking low-smoke and halogen-free polyolefin.
The utility model is rational in infrastructure simple, manufactures easily, and cost is low, and serviceability is good.Have reliable useful life, good thermal stability, moisture resistance and good electric property, physical and mechanical properties, radiation resistance are arranged, sheath does not ftracture, and cable can bear than large radiation dosage, long service life.This cable is the desirable selection cables in places such as nuclear power station nuclear reactor factory building, nuclear auxiliary building, steam turbine factory building.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 conductor, 2 inner insulating layers, 3 external insulation layers, 4 screens, 5 radiation hardness layers, 6 sheaths.
Embodiment
As Fig. 1: conductor 1 adopts the 2nd class material among the GB/T3956-2008, extrudes inner insulating layer 2 conductor 1 outside, extrudes external insulation layer 3 formation insulated wire cores outside inner insulating layer 2.The thickness proportion of inside and outside insulating barrier is 1: 2.The material of inner insulating layer adopts plain edition cross-linking radiation polyolefin, and the material of external insulation layer adopts low smoke and zero halogen cross-linking radiation polyolefin.Copper wire braiding or copper strips are wrapped to constitute screen 4 by adopting on the cable core of insulated wire cores stranding, the radiation hardness layer 5 of wrapped si4N3 fabric strip outside screen 4, on radiation hardness layer 5, extrude irradiated crosslinking low-smoke and halogen-free polyolefin jacket 6, constitute radiation hardness cracking resistance used in nuclear power station cable.
Claims (7)
1. radiation hardness cracking resistance used in nuclear power station cable, comprise the screen and the sheath that are provided with on the insulated wire cores of extruded insulation layer on the conductor and the cable core by the insulated wire cores stranding, it is characterized in that described insulating barrier for to be made of inside and outside insulating barrier, is provided with the radiation hardness layer between described screen and the sheath.
2. radiation hardness cracking resistance used in nuclear power station cable according to claim 1 is characterized in that described conductor is to meet the 2nd class conductor that GB/T3956-2008 requires.
3. radiation hardness cracking resistance used in nuclear power station cable according to claim 1, the thickness proportion that it is characterized in that described inside and outside insulating barrier is 1: 2.
4. radiation hardness cracking resistance used in nuclear power station cable according to claim 1, the material that it is characterized in that described inner insulating layer is a plain edition cross-linking radiation polyolefin, the material of external insulation layer is a low smoke and zero halogen cross-linking radiation polyolefin.
5. radiation hardness cracking resistance used in nuclear power station cable according to claim 1 is characterized in that described screen requires copper wire braid or copper strips lapping layer for meeting GB/T9330-2008.
6. radiation hardness cracking resistance used in nuclear power station cable according to claim 1 is characterized in that described radiation hardness layer is a si4N3 fabric strip lapping layer.
7. radiation hardness cracking resistance used in nuclear power station cable according to claim 1, the material that it is characterized in that described sheath is the irradiated crosslinking low-smoke and halogen-free polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205768522U CN201838353U (en) | 2010-10-26 | 2010-10-26 | Radiation-resistant anti-cracking cable used for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205768522U CN201838353U (en) | 2010-10-26 | 2010-10-26 | Radiation-resistant anti-cracking cable used for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838353U true CN201838353U (en) | 2011-05-18 |
Family
ID=44008456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205768522U Expired - Lifetime CN201838353U (en) | 2010-10-26 | 2010-10-26 | Radiation-resistant anti-cracking cable used for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956313A (en) * | 2011-08-18 | 2013-03-06 | 江苏赛德电气有限公司 | Intense-radiation and cracking resistant high-temperature-resistant control cable used in nuclear island of nuclear power plant |
-
2010
- 2010-10-26 CN CN2010205768522U patent/CN201838353U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956313A (en) * | 2011-08-18 | 2013-03-06 | 江苏赛德电气有限公司 | Intense-radiation and cracking resistant high-temperature-resistant control cable used in nuclear island of nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |