CN202178086U - Control cable for nuclear power plant - Google Patents
Control cable for nuclear power plant Download PDFInfo
- Publication number
- CN202178086U CN202178086U CN 201120308491 CN201120308491U CN202178086U CN 202178086 U CN202178086 U CN 202178086U CN 201120308491 CN201120308491 CN 201120308491 CN 201120308491 U CN201120308491 U CN 201120308491U CN 202178086 U CN202178086 U CN 202178086U
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- Prior art keywords
- nuclear power
- control cable
- cable
- sheath
- power station
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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.)
- Expired - Lifetime
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Abstract
The utility model relates to a control cable, in particular to the control cable for a nuclear power plant. The technical scheme of the utility model is as follows: the control cable for the nuclear power plant comprises core wires (3) constituted by conductors (1) and insulating layers (2), wherein the insulating layers (2) are extruded on the conductors (1), a plurality of the core wires (3) which are arranged on a circumference and filling material (4) are twisted to form a cable core (5), a lapping layer (6), a copper-plastic composite tape (7), a copper wire woven layer (8) and a sheath (9) are sequentially arranged outside the cable core (5), the lapping layer (6) is lapped on the cable core (5), the copper-plastic composite tape (7) is lapped outside the lapping layer (6), and the sheath (9) is extruded outside the copper wire woven layer (8). After the technical scheme is adopted, the control cable has excellent long-term thermal aging resistance, nuclear radiation resistance, DBA (dibasic acid) resistance and immersion performance after DBA.
Description
Technical field
The utility model relates to a kind of control cable, and particularly a kind of control cable for nuclear power station is applicable to the cable of rated voltage 0.6/1kV, and it 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 control 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: 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.
Chinese patent notification number 2888606Y discloses a kind of used in nuclear power station cable; It comprises heart yearn, lapping layer and the sheath etc. of the existing used in nuclear power station construction of cable; Wherein heart yearn is to be made up of the outer extruded insulation layer of conductor; Insulating barrier adopts two-layer composite, and its internal layer is a crosslinked polyethylene insulation material, and its skin is the halogen-free and low-smoke flame-retardant polyolefin material.It is mainly not enough: unshielded layer, and capability of resistance to radiation is general, and the life-span 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 control cable 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 utility model adopts following technical scheme: a kind of control cable for nuclear power station comprises the heart yearn that is made up of conductor and insulating barrier; Insulating barrier is extruded on the conductor; It is characterized in that: the heart yearn and the filling of said many circumferential arrangement are twisted into cable core, and cable core is provided with lapping layer, compound copper-plastics band, copper wire braid and sheath outward successively, the wrapped cable core of lapping layer; The outer wrapped compound copper-plastics band of lapping layer, the copper wire braid extrudes sheath outward.
Further, said conductor is the tinned copper wire conductor after stranded.
Further, said filling is a low-smoke halogen-free flame retardant filler strip.
Further, said copper wire braid is a tincopper fuse wire braided armor.
Further, said insulating barrier is the low flue unhalogen flame-retarded ethylpropyl rubber layer of vapor crosslinking.
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:
(1) heart yearn of many circumferential arrangement and filling are twisted into cable core, and be easy to process, and stranded cable core is firm.Every conductor tyre insulating barrier, the insulating properties of raising cable.Compound copper-plastics band and copper wire braid improve the shielding of whole cable, capability of resistance to radiation grow.
(2) the tinned copper wire conductor after stranded improves the electric conductivity of conductor, makes conductor soft and not fragile.
(3) 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.
(4) tincopper fuse wire braided armor, 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.
(5) insulating barrier of vapor crosslinking makes the insulating properties of cable stronger.
(6) 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.
(7) 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.
The submergence performance that the utlity model has behind excellent anti-long term heat ageing performance, 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, 8, copper wire braid, 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 control cable for nuclear power station comprises heart yearn 3 and the filling 4 stranded cable cores that constitute 5 by many circumferential arrangement.Every heart yearn 3 is made up of conductor 1 and insulating barrier 2, and insulating barrier 2 is extruded on the conductor 1.Cable core 5 outer lapping layer 6, compound copper-plastics band 7, copper wire braid 8 and the sheaths 9 of being provided with successively.Lapping layer 6 wrapped cable cores 5, lapping layer 6 outer wrapped compound copper-plastics bands 7, the copper wire braid 8 outer sheaths 9 that extrude.
Wherein: conductor 1 adopts the tinned copper wire lay configuration.Fill 4 preferred low-smoke halogen-free flame retardant filler strips.Copper wire braid 8 preferred tincopper fuse wire braided armors.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 many heart yearns 3 of circumferential arrangement are stranded with filling 4, and it is easy to process, and stranded cable core is firm.
The shielding of compound copper-plastics band 7 and copper wire braid 8 raising cables, the capability of resistance to radiation grow.Copper wire braid 8 preferred tincopper fuse wire braided armors, 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.
Adopt the conductor of tinned copper wire lay configuration, improve the electric conductivity of conductor, make conductor soft and not fragile.
Low-smoke halogen-free flame retardant filler strip improves cable low-smoke non-halogen flame-retardant performance.
After adopting such scheme, reach more than 60 years the useful life of control cable for nuclear power station, and radiation resistance is good.
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. control cable for nuclear power station; Comprise the heart yearn (3) that constitutes by conductor (1) and insulating barrier (2); Insulating barrier (2) is extruded on the conductor (1); It is characterized in that: heart yearn of said many circumferential arrangement (3) and filling (4) are twisted into cable core (5), outer lapping layer (6), compound copper-plastics band (7), copper wire braid (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 (7) of lapping layer (6), the outer sheath (9) that extrudes of copper wire braid (8).
2. control cable for nuclear power station according to claim 1 is characterized in that: said conductor (1) is the tinned copper wire conductor after stranded.
3. control cable for nuclear power station according to claim 1 is characterized in that: said filling (4) is a low-smoke halogen-free flame retardant filler strip.
4. control cable for nuclear power station according to claim 1 is characterized in that: said copper wire braid (8) is a tincopper fuse wire braided armor.
5. control cable for nuclear power station 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.
6. control cable for nuclear power station 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 |
|---|---|---|---|
| CN 201120308491 CN202178086U (en) | 2011-08-23 | 2011-08-23 | Control cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120308491 CN202178086U (en) | 2011-08-23 | 2011-08-23 | Control cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178086U true CN202178086U (en) | 2012-03-28 |
Family
ID=45867957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120308491 Expired - Lifetime CN202178086U (en) | 2011-08-23 | 2011-08-23 | Control cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202178086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573776A (en) * | 2017-03-13 | 2018-09-25 | 郜从金 | Coaxial special type heavy current pulse cable |
-
2011
- 2011-08-23 CN CN 201120308491 patent/CN202178086U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573776A (en) * | 2017-03-13 | 2018-09-25 | 郜从金 | Coaxial special type heavy current pulse cable |
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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: 20120328 |
|
| CX01 | Expiry of patent term |