CN101315818A - Power cable for nuclear power plant - Google Patents
Power cable for nuclear power plant Download PDFInfo
- Publication number
- CN101315818A CN101315818A CNA2008101380093A CN200810138009A CN101315818A CN 101315818 A CN101315818 A CN 101315818A CN A2008101380093 A CNA2008101380093 A CN A2008101380093A CN 200810138009 A CN200810138009 A CN 200810138009A CN 101315818 A CN101315818 A CN 101315818A
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- Prior art keywords
- cable
- layer
- protecting sleeve
- insulation
- sheath
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- 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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Abstract
The invention discloses a power cable used in a nuclear power plant, which solves the problems that the existing power cable used in the nuclear power plant has low wear resistance, etc., and has the advantages of simple structure, convenient use and effectively improving the interference resistance of the cable, etc. The structure of the cable is characterized by comprising a multicore group conductor, the external wall of each conductor is coated with a insulating layer and arranged inside an obturator, the external wall of the obturator is provided with a cable double layer protecting sleeve and a wrap; the cable double layer protecting sleeve consists of an internal layer protecting sleeve and an external layer protecting sleeve, wherein, the internal layer protecting sleeve is a fluoroplastic protecting sleeve, and the external layer protecting sleeve is a low smoke zero halogen polyolefine protecting sleeve. The insulating layer includes internal layer insulation and external layer insulation, wherein, the internal layer insulation is a crosslinked polyethylene insulating layer and the external insulation is a low smoke zero halogen polyolefine insulating layer.
Description
Technical field
The present invention relates to a kind of cable, relate in particular to a kind of power cable for nuclear power plant.
Background technology
The present used cable of nuclear power station is in cost consideration and mostly is the individual layer sheath, this just causes the weather resistance of cable and wear-resistant degree not high, especially power cable for nuclear power plant its any problem can not appear to wear-resistant and weather-proof ability, and existing individual layer protective-cover type structure can't meet the demands.
Summary of the invention
Problems such as it is not good in order to solve its weather resistance of present power cable for nuclear power plant that purpose of the present invention is exactly, and wear-resistant degree is low provide a kind of and have simple in structurely, easy to use, can effectively improve the power cable for nuclear power plant of advantage such as cable weather resistance.
For achieving the above object, the present invention adopts following technical scheme:
A kind of power cable for nuclear power plant, it comprises multicore group conductor, and the outer wall wrap insulate layer of every conductor also places in the obturator, and described obturator outer wall is provided with cable duplex sheath and twining package tape;
Described cable duplex sheath is made up of internal layer sheath and outer protective sleeve; Wherein, the internal layer sheath is the fluoroplastics sheath, and outer protective sleeve is the low-smoke halogen-free polyolefin protective cover material.
Described insulating barrier comprises primary insulation and outer layer insulation; Wherein, primary insulation is crosslinked polyetylene insulated layer; Outer layer insulation is the low-smoke halogen-free polyolefin insulating barrier.
Power cable for nuclear power plant of the present invention all adopts double hyer insulation, and primary insulation is a cross-linked polyethylene insulating material, and outer layer insulation is the low-smoke halogen-free polyolefin Insulation Material; Sheath adopts duplex sheath, and the internal layer sheath is fluoroplastics, and outer protective sleeve is the low-smoke halogen-free polyolefin protective cover material, and performance is with reference to other patents.
The protective action of the existing sheath in the past of duplex sheath has strengthened the weatherability of cable again, makes the environment for use of cable more extensive.Insulation Material adopts cross-linked polyethylene insulating material, has reduced dielectric loss in use, has strengthened electrical property, makes transmission signals more stable and undistorted, thereby ensures the effective transmission of cable.
The invention has the beneficial effects as follows; Simple in structure, cost is low, good in anti-interference performance, and weatherability is strong, and accommodative ability of environment is strong, reliable operation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein, 1, conductor; 2, primary insulation; 3, outer layer insulation; 4, twining package tape; 5, obturator; 6, internal layer sheath; 7, outer protective sleeve.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, a kind of power cable for nuclear power plant, it comprises multicore group conductor 1, and the outer wall wrap insulate layer of every conductor 1 also places in the obturator 5, and obturator 5 outer walls are provided with cable duplex sheath and twining package tape 4; The cable duplex sheath is made up of internal layer sheath 6 and outer protective sleeve 7; Wherein, internal layer sheath 6 is the fluoroplastics sheath, and outer protective sleeve 7 is the low-smoke halogen-free polyolefin protective cover material.Insulating barrier comprises primary insulation 2 and outer layer insulation 3; Wherein, primary insulation 2 is crosslinked polyetylene insulated layer; Outer layer insulation 3 is the low-smoke halogen-free polyolefin insulating barrier.
Claims (3)
1. power cable for nuclear power plant, it comprises multicore group conductor, the outer wall wrap insulate layer of every conductor also places in the obturator, it is characterized in that: described obturator outer wall is provided with cable duplex sheath and twining package tape;
2. a kind of power cable for nuclear power plant according to claim 1 is characterized in that: described cable duplex sheath is made up of internal layer sheath and outer protective sleeve; Wherein, the internal layer sheath is the fluoroplastics sheath, and outer protective sleeve is the low-smoke halogen-free polyolefin protective cover material.
3. a kind of power cable for nuclear power plant according to claim 1 is characterized in that: described insulating barrier comprises primary insulation and outer layer insulation; Wherein, primary insulation is crosslinked polyetylene insulated layer; Outer layer insulation is the low-smoke halogen-free polyolefin insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101380093A CN101315818B (en) | 2008-06-30 | 2008-06-30 | Power cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101380093A CN101315818B (en) | 2008-06-30 | 2008-06-30 | Power cable for nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101315818A true CN101315818A (en) | 2008-12-03 |
| CN101315818B CN101315818B (en) | 2011-08-10 |
Family
ID=40106777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101380093A Active CN101315818B (en) | 2008-06-30 | 2008-06-30 | Power cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101315818B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962344Y (en) * | 2006-10-18 | 2007-10-17 | 安徽新亚特电缆集团有限公司 | Nuclear island cable for highly reliable nuclear power plant |
-
2008
- 2008-06-30 CN CN2008101380093A patent/CN101315818B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101315818B (en) | 2011-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |