CN102956293A - Compensation cable for nuclear power plant - Google Patents
Compensation cable for nuclear power plant Download PDFInfo
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- CN102956293A CN102956293A CN2011102428725A CN201110242872A CN102956293A CN 102956293 A CN102956293 A CN 102956293A CN 2011102428725 A CN2011102428725 A CN 2011102428725A CN 201110242872 A CN201110242872 A CN 201110242872A CN 102956293 A CN102956293 A CN 102956293A
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- nuclear power
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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 relates to a compensation cable, in particular to a compensation cable for a nuclear power plant. The technical scheme includes that the compensation cable for the nuclear power plant comprises conductors (1) with insulating layers (3), and is characterized in that each two corresponding conductors (1) with the insulating layers (2) are stranded to form a core wire (3), the two core wires (3) and a filler (4) are stranded to form a cable core (5), a wrapping layer (6), a copper-plastic composite belt shielding layer (7), a copper wire braided shielding layer (8) and a sheath (9) are sequentially arranged on the outside of the cable core (5), the wrapping layer (6) wraps the cable core (5), the copper-plastic composite belt shielding layer (7) wraps the outside of the wrapping layer (6), and the sheath (9) is extruded on the outside of the copper wire braided shielding layer (8). According to the technical scheme, the compensation cable has the particular advantages of high long-term thermal ageing resistance, high nuclear radiation resistance and high immersion resistance during and after a DBA (design basis accident).
Description
Technical field
The present invention relates to a kind of compensating cable, particularly a kind of compensating cable used for nuclear power station.The present invention is applicable to the cable of rated voltage 300/500V.The invention belongs to the cable application technical field.
Background technology
AP1000 is international state-of-the-art generation Ⅲ nuclear power technology.AP1000 is that single heap is arranged two loop units, and 60 years designed lives, main safety system adopts non-active design, is arranged in the containment, and containment is double-decker, and skin is prestressed concrete, and internal layer is steel plate structure.
Plan according to national nuclear power Long-and Medium-term Development: to the year two thousand twenty, the Chinese Nuclear Power installed capacity will account for about 7% of total installed capacity of electricity capacity, reach 7,500 ten thousand kilowatts.That is: China will approve the construction of six million kilowatt nuclear power units every year at least, finally build up 30 nuclear power stations again.These nuclear power stations will adopt the AP1000 technology comprehensively.
For the AP1000 technology, its supporting compensating cable requires to possess the useful life more than 60 years, and has low cigarette, Halogen, fire-retardant, anti-long term heat ageing, anti-nuclear radiation, anti-DBA(design basis accident) and long-term submergence and the high insulating property of DBA.
Chinese patent notification number CN201820470U openly examines a grade cable, comprise some mutual stranded copper conductors and halogen-free polyolefin sheath, every copper conductor outer surface extrudes the cable core of crosslinked polyetylene insulated layer and low smoke, zero halogen polyolefin insulation layer formation successively, every cable core all is provided with the first oxygen barrier layer outward, all cable cores are surrounded by the second oxygen barrier layer outward jointly, be provided with inserts between the first oxygen barrier layer that every cable core is outer and the second oxygen barrier layer, described sheath is arranged on the second oxygen barrier layer outside.It is mainly not enough: cable core is that multicore structure is stranded, processed complex; The first oxygen barrier layer and the second oxygen barrier layer all adopt low smoke, zero halogen polyolefin twining package tape and copper strips twining package tape, and capability of resistance to radiation is general, and the life-span is general, can't reply accident hot environment.
The open 1E grade K 3 genus nuclear power plant power cable of China application publication number CN101465176A, it comprises cable core, filling, band, sheath, cable core is by two stranded forming of above insulated wire cores, insulated wire cores is by conductor and be extruded in insulation in the outer irradiated crosslinked polyalkene of conductor, flame-proof cross-linking radiation external insulation forms, space between insulated wire cores is filled by the halogen-free flameproof oxygen barrier layer, coat in insulated wire cores and halogen-free flameproof oxygen barrier layer external application halogen-free flameproof band, the halogen-free flameproof band extrudes the halogen-free flameproof sheath outward.It is mainly not enough: radiation resistance is general, can't reply accident hot environment.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, the extraordinary compensating cable used for nuclear power station of submergence performance behind a kind of anti-long term heat ageing performance, anti-nuclear radiation performance, anti-DBA and the DBA is provided.
For realizing above-mentioned technical purpose, the present invention is by the following technical solutions: a kind of compensating cable used for nuclear power station, include insulating barrier and conductor, the conductor of two tape insulation layers is twisted into heart yearn, many heart yearns and filling are twisted into cable core, and cable core is provided with lapping layer, compound copper-plastics band screen screen, proof copper-wire braided screen and sheath, the wrapped cable core of lapping layer outward successively, the outer wrapped compound copper-plastics band screen screen of lapping layer, the proof copper-wire braided screen extrudes sheath outward.
Further, described conductor is the thermocouple B alloy wire conductor after stranded.
Further, described insulating barrier is the low flue unhalogen flame-retarded ethylpropyl rubber layer of vapor crosslinking.
Further, described filling is low-smoke halogen-free flame retardant filler strip.
Further, described proof copper-wire braided screen is the tinned copper wire woven shield.
Further, described sheath is the low-smoke non-halogen flame-retardant thermoset rubber sheath of vapor crosslinking.
After adopting technique scheme, the present invention has following beneficial effect:
The conductor of (1) two tape insulation layer is twisted into heart yearn, and many heart yearns are twisted into cable core, and it is stranded, easy to process, and stranded cable core is firm.Compound copper-plastics band screen and proof copper-wire braided screen improve the shielding of whole cable, capability of resistance to radiation grow.
(2) low-smoke halogen-free flame retardant filler strip, low-smoke halogen-free flame-retardant isolating layer and low-smoke halogen-free flame-retardant sheath are so that cable low-smoke non-halogen flame-retardant performance is better.
(3) tinned copper wire woven shield, anti-oxidant, the life-span is longer, and is more not fragile, prevent from insulating and the aging ability of sheath strong, the capability of resistance to radiation grow.
(4) insulating barrier of vapor crosslinking makes the insulating properties of cable stronger.
(5) the thermoset rubber sheath makes the anti-nuclear radiation of cable, anti-DBA, anti-long term heat ageing, improves cable useful life.Vapor crosslinking makes insulating properties better, and other performance is better.
(6) ethylene propylene rubber insulated layer, thermoset rubber sheath make cable more flexible, and be more convenient and be suitable for the narrow and small zone of nuclear power station and use.
Submergence performance behind the anti-long term heat ageing performance of the present invention, anti-nuclear radiation performance, anti-DBA and the DBA is good especially.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1, conductor, 2, insulating barrier, 3, heart yearn, 4, fill, 5, cable core, 6, lapping layer, 7, compound copper-plastics band screen, 8, proof copper-wire braided screen, 9, sheath.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment
As shown in Figure 1, a kind of compensating cable used for nuclear power station includes insulating barrier 2 and conductor 1.Many heart yearns 3 and fill 4 and be twisted into cable core 5, every heart yearn 3 consists of cable core 5 outer lapping layer 6, compound copper-plastics band screen 7, proof copper-wire braided screen 8 and the sheaths 9 of being provided with successively by the conductor 1 of two tape insulation layers 2 is stranded.Lapping layer 6 wrapped cable cores 5, lapping layer 6 outer wrapped compound copper-plastics band screens 7, the proof copper-wire braided screen 8 outer sheaths 9 that extrude.
Wherein: conductor 1 adopts thermocouple B alloy wire lay configuration.Fill 4 preferred low-smoke halogen-free flame retardant filler strips.Proof copper-wire braided screen 8 preferred tinned copper wire woven shields.Insulating barrier 2 preferred low flue unhalogen flame-retarded ethylpropyl rubber layers, it adopts vapor crosslinking.Sheath 9 preferred low-smoke non-halogen flame-retardant thermoset rubber sheaths, it adopts vapor crosslinking.
The conductor 1 of two tape insulation layers 2 is twisted into heart yearn 3, and many heart yearns 3 are twisted into cable core 5 with filling 4, and it is stranded in twos, and is easy to process, and stranded cable core is firm, every conductor 1 tyre insulating barrier 2, the insulating properties of raising cable.
Lapping layer 6 outer wrapped compound copper-plastics band screens 7, the proof copper-wire braided screen 8 outer sheaths 9 that extrude, compound copper-plastics band screen 7 and proof copper-wire braided screen 8 improve the shielding of whole cable, capability of resistance to radiation grow.
Adopt the tinned copper wire woven shield, anti-oxidant, the life-span is longer, and is more not fragile, prevent from insulating and the aging ability of sheath strong, the capability of resistance to radiation grow.
After adopting such scheme, reach more than 60 years the useful life of compensating cable used for nuclear power station.
The invention is not restricted to above-described embodiment, the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection range that the present invention requires.
Claims (6)
1. compensating cable used for nuclear power station, include insulating barrier (2) and conductor (1), it is characterized in that: the conductor (1) of two tape insulation layers (2) is twisted into heart yearn (3), many heart yearns (3) and filling (4) are twisted into cable core (5), the outer lapping layer (6) that is provided with successively of cable core (5), compound copper-plastics band screen screen (7), proof copper-wire braided screen (8) and sheath (9), the wrapped cable core of lapping layer (6) (5), the outer wrapped compound copper-plastics band screen screen (7) of lapping layer (6), the outer sheath (9) that extrudes of proof copper-wire braided screen (8).
2. compensating cable used for nuclear power station according to claim 1 is characterized in that: described conductor (1) is the thermocouple B alloy wire conductor after stranded.
3. compensating cable used for nuclear power station according to claim 1, it is characterized in that: described insulating barrier (2) is the low flue unhalogen flame-retarded ethylpropyl rubber layer of vapor crosslinking.
4. compensating cable used for nuclear power station according to claim 1, it is characterized in that: described filling (4) is low-smoke halogen-free flame retardant filler strip.
5. compensating cable used for nuclear power station according to claim 1, it is characterized in that: described proof copper-wire braided screen (7) is the tinned copper wire woven shield.
6. compensating cable used for nuclear power station according to claim 1, it is characterized in that: described sheath (9) is the low-smoke non-halogen flame-retardant thermoset rubber sheath of vapor crosslinking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102428725A CN102956293A (en) | 2011-08-23 | 2011-08-23 | Compensation cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102428725A CN102956293A (en) | 2011-08-23 | 2011-08-23 | Compensation cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102956293A true CN102956293A (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102428725A Pending CN102956293A (en) | 2011-08-23 | 2011-08-23 | Compensation cable for nuclear power plant |
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| CN (1) | CN102956293A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871584A (en) * | 2014-02-24 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free K3-grade compensation cable for 1E type nuclear power station |
| CN104240810A (en) * | 2014-08-26 | 2014-12-24 | 山东华凌电缆有限公司 | Level-1E cable for gentle environment of third-generation passive nuclear power plant and producing method thereof |
| CN113035420A (en) * | 2021-03-24 | 2021-06-25 | 山东华凌电缆有限公司 | Rated voltage 300/500V computer cable for passive nuclear power station and production method |
| CN113257471A (en) * | 2021-05-12 | 2021-08-13 | 安徽电缆股份有限公司 | 80-year-life salt mist resistant cable for nuclear power station |
-
2011
- 2011-08-23 CN CN2011102428725A patent/CN102956293A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871584A (en) * | 2014-02-24 | 2014-06-18 | 安徽华海特种电缆集团有限公司 | Low-smoke halogen-free K3-grade compensation cable for 1E type nuclear power station |
| CN103871584B (en) * | 2014-02-24 | 2016-04-27 | 安徽华海特种电缆集团有限公司 | A kind of low smoke and zero halogen 1E type used in nuclear power station K3 level compensating cable |
| CN104240810A (en) * | 2014-08-26 | 2014-12-24 | 山东华凌电缆有限公司 | Level-1E cable for gentle environment of third-generation passive nuclear power plant and producing method thereof |
| CN104240810B (en) * | 2014-08-26 | 2016-08-24 | 山东华凌电缆有限公司 | The passive nuclear power station of three generations eases up the production method of environment 1E level cable |
| CN113035420A (en) * | 2021-03-24 | 2021-06-25 | 山东华凌电缆有限公司 | Rated voltage 300/500V computer cable for passive nuclear power station and production method |
| CN113257471A (en) * | 2021-05-12 | 2021-08-13 | 安徽电缆股份有限公司 | 80-year-life salt mist resistant cable for nuclear power station |
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Application publication date: 20130306 |