CN202196595U - Compensating cable used for nuclear power station - Google Patents
Compensating cable used for nuclear power station Download PDFInfo
- Publication number
- CN202196595U CN202196595U CN201120308480XU CN201120308480U CN202196595U CN 202196595 U CN202196595 U CN 202196595U CN 201120308480X U CN201120308480X U CN 201120308480XU CN 201120308480 U CN201120308480 U CN 201120308480U CN 202196595 U CN202196595 U CN 202196595U
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- CN
- China
- Prior art keywords
- nuclear power
- power station
- compensating cable
- sheath
- conductor
- Prior art date
- 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.)
- Expired - Lifetime
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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 utility model relates to a compensating cable, and especially relates to the compensating cable used for a nuclear power station. The technical scheme is that: the compensating cable used for the nuclear power station is composed of conductors (1), and each conductor has an insulating layer (3). The compensating cable is characterized in that two conductors (1), with each possessing the insulating layer (2), are twisted into a core wire (3); two core wires (3) and a filling (4) are twisted into a cable core (5); the outside of the cable core (5) is provided with a wrapping layer (6), a copper plastic composite belt shielding layer (7), a copper wire woven shielding layer (8), and a sheath (9) in order; the wrapping layer (6) wraps the cable core (5), the outside of the wrapping layer (6) is wrapped with the copper plastic composite belt shielding layer (7); and the outside of the copper wire woven shielding layer (8) is extruded with the sheath (9). Through adopting the above technical scheme, the compensating cable used for the nuclear power station is excellent in long-term heat aging resistance, nuclear radiation resistance, DBA resistance, and immersion performance after DBA.
Description
Technical field
The utility model relates to a kind of compensating cable, particularly a kind of used in nuclear power station compensating cable.The utility model is applicable to the cable of rated voltage 300/500V.The utility model belongs to the cable application technical field.
Background technology
AP1000 is international state-of-the-art third generation 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 a double-decker, and skin is a prestressed concrete, and internal layer is a steel plate structure.
The medium-term and long-term development plan of the national nuclear power of foundation: to the year two thousand twenty, 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.
To the AP1000 technology, its supporting compensating cable requires to possess the useful life more than 60 years, and has long-term submergence and the high insulating property of low cigarette, Halogen, fire-retardant, anti-long term heat ageing, anti-nuclear radiation, anti-DBA (design basis accident) and 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, and every cable core all is provided with first oxygen barrier layer outward, and all cable cores are surrounded by second oxygen barrier layer outward jointly; Be provided with inserts between first oxygen barrier layer that every cable core is outer and second oxygen barrier layer, said sheath is arranged on second oxygen barrier layer outside.It is mainly not enough: cable core is that multicore structure is stranded, processed complex; First oxygen barrier layer and 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 of China application publication number CN101465176A is used power cable; 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 is formed; Space between insulated wire cores is filled by the halogen-free flameproof oxygen barrier layer, coats in insulated wire cores and halogen-free flameproof oxygen barrier layer external application halogen-free flameproof band, and 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 purpose of the utility model is the deficiency to prior art, and the extraordinary used in nuclear power station compensating cable 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 utility model adopts following technical scheme: a kind of used in nuclear power station compensating cable includes 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, copper wire woven shield and sheath, the wrapped cable core of lapping layer outward successively; The outer wrapped compound copper-plastics band screen screen of lapping layer, the copper wire woven shield extrudes sheath outward.
Further, said conductor is the thermocouple alloy silk conductor after stranded.
Further, said insulating barrier is the low flue unhalogen flame-retarded ethylpropyl rubber layer of vapor crosslinking.
Further, said filling is a low-smoke halogen-free flame retardant filler strip.
Further, said copper wire woven shield is the tinned copper wire woven shield.
Further, said sheath is the low-smoke non-halogen flame-retardant thermoset rubber sheath of vapor crosslinking.
After adopting technique scheme, the utlity model 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 copper wire woven shield 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 make 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, it is strong with the aging ability of sheath to prevent to insulate, 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, more convenient 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 utility model, anti-nuclear radiation performance, anti-DBA and the DBA is good especially.
Description of drawings
Fig. 1 is the structural representation of the utility model.
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, copper wire woven shield, 9, sheath.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Embodiment
As shown in Figure 1, a kind of used in nuclear power station compensating cable includes insulating barrier 2 and conductor 1.Many heart yearns 3 with fill 4 and be twisted into cable core 5, every heart yearn 3 constitutes cable core 5 outer lapping layer 6, compound copper-plastics band screen 7, copper wire woven shield 8 and the sheaths 9 of being provided with successively by the conductor of two tape insulation layers 21 is stranded.Lapping layer 6 wrapped cable cores 5, lapping layer 6 outer wrapped compound copper-plastics band screens 7, the copper wire woven shield 8 outer sheaths 9 that extrude.
Wherein: conductor 1 adopts thermocouple alloy skein silk to close structure.Fill 4 preferred low-smoke halogen-free flame retardant filler strips.Copper wire woven shield 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 copper wire woven shield 8 outer sheaths 9 that extrude, the shielding of compound copper-plastics band screen 7 and the whole cable of copper wire woven shield 8 raisings, 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, it is strong with the aging ability of sheath to prevent to insulate, the capability of resistance to radiation grow.
After adopting such scheme, reach more than 60 years the useful life of used in nuclear power station compensating cable.
The utility model is not limited to the foregoing description, and the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection range that the utility model requires.
Claims (6)
1. used in nuclear power station compensating cable; 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), outer lapping layer (6), compound copper-plastics band screen screen (7), copper wire woven shield (8) and sheath (9), the wrapped cable core of lapping layer (6) (5) of being provided with successively of cable core (5); The outer wrapped compound copper-plastics band screen screen (7) of lapping layer (6), the outer sheath (9) that extrudes of copper wire woven shield (8).
2. used in nuclear power station compensating cable according to claim 1 is characterized in that: said conductor (1) is the thermocouple alloy silk conductor after stranded.
3. used in nuclear power station compensating cable according to claim 1 is characterized in that: said insulating barrier (2) is the low flue unhalogen flame-retarded ethylpropyl rubber layer of vapor crosslinking.
4. used in nuclear power station compensating cable according to claim 1 is characterized in that: said filling (4) is a low-smoke halogen-free flame retardant filler strip.
5. used in nuclear power station compensating cable according to claim 1 is characterized in that: said copper wire woven shield (7) is the tinned copper wire woven shield.
6. used in nuclear power station compensating cable according to claim 1 is characterized in that: said 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 |
|---|---|---|---|
| CN201120308480XU CN202196595U (en) | 2011-08-23 | 2011-08-23 | Compensating cable used for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120308480XU CN202196595U (en) | 2011-08-23 | 2011-08-23 | Compensating cable used for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196595U true CN202196595U (en) | 2012-04-18 |
Family
ID=45951497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120308480XU Expired - Lifetime CN202196595U (en) | 2011-08-23 | 2011-08-23 | Compensating cable used for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196595U (en) |
-
2011
- 2011-08-23 CN CN201120308480XU patent/CN202196595U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |