CN201130548Y - Complete performance nuclear power plant cable - Google Patents
Complete performance nuclear power plant cable Download PDFInfo
- Publication number
- CN201130548Y CN201130548Y CNU2007200886446U CN200720088644U CN201130548Y CN 201130548 Y CN201130548 Y CN 201130548Y CN U2007200886446 U CNU2007200886446 U CN U2007200886446U CN 200720088644 U CN200720088644 U CN 200720088644U CN 201130548 Y CN201130548 Y CN 201130548Y
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- China
- Prior art keywords
- low
- flame
- retardant
- free
- smoke halogen
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Abstract
The utility model discloses a full-performance cable for nuclear power station, belonging to the technical field of cables, which comprises a low-smoke halogen-free and flame-retardant sheath; a low-smoke halogen-free and flame-retardant gird is arranged in the low-smoke halogen-free and flame-retardant sheath; a shielding layer is arranged in the low-smoke halogen-free and flame-retardant gird; a polyester belt is arranged in the shielding layer; a low-smoke halogen-free and flame-retardant gird is arranged in the polyester belt; a conductor wrapped by the low-smoke halogen-free polyolefin insulation layer is arranged in the low-smoke halogen-free and flame-retardant gird; asbestos rope is filled between the low-smoke halogen-free polyolefin insulation layers. The full-performance cable has the advantages of good electromagnetic shielding property due to adopting copper strap lapping shielding or copper wire braiding shielding, good flame retardant property due to adopting the low-smoke halogen-free and flame-retardant gird and the flame retardant sheath and good insulation performance due to adopting the low-smoke halogen-free polyolefin insulation layer.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of cable that is used for nuclear power station.
Background technology
There are wind power station, hydropower station, heat power station and nuclear power station in the present power station of China.Nuclear power is because its fail safe, stable, life-span is long and characteristics such as the influence of environment is little are become one of important energy pillar.But the conditional request of nuclear power plant is harsh especially, and this also has very high requirement to its used cable.Cables of nuclear power mainly is to be used to finish the reactor scram, containment is isolated, reactor core is met an urgent need cooling, reactor waste is derived, the thermal conductance of containment vessel goes out, prevent radioactive substance function such as environmental emission towards periphery, outside containment, reach the cable of the electrical system equipment that can carry out its function under normal condition and the earthquake load.Because the service condition harshness, common cable can not satisfy its requirement.
Summary of the invention
The purpose of this utility model is that a kind of full performance cables of nuclear power that can be applicable to the harsh service condition of nuclear power station will be provided.
The purpose of this utility model is achieved in that a kind of full performance cables of nuclear power, comprise low-smoke halogen-free flame-retardant sheath 8, in the low-smoke halogen-free flame-retardant sheath 8 is low-smoke non-halogen flame-retardant band 7, in the low-smoke non-halogen flame-retardant band 7 is screen 6, in the screen 6 is polyester belt 5, in the polyester belt 5 is low-smoke non-halogen flame-retardant band 4, is provided with the conductor 1 by low-smoke halogen-free polyolefin insulating barrier 3 parcels in the low-smoke non-halogen flame-retardant band 4, is filled with asbestos cord 2 between the low-smoke halogen-free polyolefin insulating barrier 3.Screen 6 adopts wrapped shielding of copper strips or copper wire braid shielded.The wrapped shielding rate of putting up of copper strips is not less than 15%, and copper wire braid shielded count is not less than 85%.Conductor 1 adopts copper wire or tinned copper wire.
Full performance cables of nuclear power provided by the utility model by adopting wrapped shielding of copper strips or copper wire braid shielded, makes cable have good electromagnetic wave shielding; Low-smoke non-halogen flame-retardant band and fire retardant jacket etc. make cable that good flame burning property be arranged; Low-smoke halogen-free polyolefin insulating barrier etc. makes cable that good insulation property be arranged.
Description of drawings
Below in conjunction with drawings and Examples the utility model is done a step explanation.
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model adopts following structure: a kind of full performance cables of nuclear power, comprise low-smoke halogen-free flame-retardant sheath 8, in the low-smoke halogen-free flame-retardant sheath 8 is low-smoke non-halogen flame-retardant band 7, in the low-smoke non-halogen flame-retardant band 7 is screen 6, in the screen 6 is polyester belt 5, in the polyester belt 5 is low-smoke non-halogen flame-retardant band 4, is provided with the conductor 1 by low-smoke halogen-free polyolefin insulating barrier 3 parcels in the low-smoke non-halogen flame-retardant band 4, is filled with asbestos cord 2 between the low-smoke halogen-free polyolefin insulating barrier 3.Screen 6 adopts wrapped shielding of copper strips or copper wire braid shielded.The wrapped shielding rate of putting up of copper strips is not less than 15%, and copper wire braid shielded count is not less than 85%.Conductor 1 adopts copper wire or tinned copper wire.
This cable product characteristic is as follows:
A. rated voltage for cable (U
0/ U): 0.6/1kV;
B. the long-term permission working temperature of cable conductor: 90 ℃; Short circuit (duration≤4s) 250 ℃ of temperature;
C. the ambient temperature-10 during cable laying ℃ ~ 40 ℃;
D. the permission bending radius during cable laying:
Unshielded cable should be not less than 6 times of the outside diameter of cable;
Shielded type cable should be not less than 8 times of the outside diameter of cable;
The minimum ambient temperature of permission when e. moving after the cable laying :-40 ℃;
F. normal useful life of cable: 50 years;
G. the property of cable:
(1) cable can stand the bunched burning test of GB/T18380.3 (IEC332-3) standard code;
(2) insulated wire cores of cable can stand the testing vertical flammability of GB/T18380.1 (IEC332 1) standard code;
(3) the low smoke performance of cable meets the regulation of GB/T17651 (IEC61034) standard: light transmittance 〉=60;
(4) the low halogen performance of cable meets the regulation of GB/T17650.2 (IEC60754-2) standard: pH 〉=4.3, conductivity＜10 μ s/mm;
H. the electric property of cable:
(1) cable can stand AC 3500V/5min withstand voltage test and not puncture;
(2) the conductor resistance rate ρ of cable
20Be not more than 0.0172410 Ω mm
2/ m;
(3) the insulation resistance constant of cable: K
20Be not less than 3670M Ω km, K
60Be not less than 367M Ω km, K
90Be not less than 36M Ω km;
When the utility model is produced:
1, main production equipments
The production process of this cable is more, and the ability to provide the auxiliary items of equipment is had relatively high expectations, and main production equipment has: wire drawing machine, bunching machine, pipe twisting machine, insulating exruded machine, cabler, wrapped machine, sheath extruder etc.
2, important raw and processed materials and requirement
(1) conductor
Conductor adopts copper wire or tinned copper wire, and conductor should meet the regulation of GB/T3956, GB3953, GB4910 standard.
(2) insulation
Insulation has multiple material, as crosslinked polyethylene, flame-proof cross-linking polyolefin, fire-retardant thermoplastic polyolefin, ethylene-propylene rubber, fire-retardant ethylene-propylene rubber etc.
(3) shielding
Cable has wrapped shielding of copper strips and copper wire braid shielded with shielding.The wrapped shielding rate of putting up of copper strips should be not less than 15%, and copper wire braid shielded count should be not less than 85%.
(4) sheath
Sheath is made up of the LSOH anti-flaming material, as requested available heat plastotype or cross-linking type.
3, product manufacture
Prepare conductor with equipment such as wire extension unit general in the enterprise, the synthetic units of wire rod, extrude insulated single wire with insulating exruded production line then, insulated single wire is utilized wire rod former boundling together again, by curling up dielectric isolation layer and copper strips or woven shield, extrude plastic sheath then, get product.The manufacturing process flow of this cable is as follows:
Wire drawing → twisted wire or synnema → insulating exruded → stranding → band → copper strips or copper wire braid shielded → extrude sheath.
Claims (4)
1, a kind of full performance cables of nuclear power, comprise low-smoke halogen-free flame-retardant sheath (8), it is characterized in that: be low-smoke non-halogen flame-retardant band (7) in the low-smoke halogen-free flame-retardant sheath (8), in the low-smoke non-halogen flame-retardant band (7) is screen (6), in the screen (6) is polyester belt (5), in the polyester belt (5) is low-smoke non-halogen flame-retardant band (4), be provided with conductor (1) in the low-smoke non-halogen flame-retardant band (4), be filled with asbestos cord (2) between the low-smoke halogen-free polyolefin insulating barrier (3) by low-smoke halogen-free polyolefin insulating barrier (3) parcel.
2, full performance cables of nuclear power according to claim 1 is characterized in that: screen (6) adopts wrapped shielding of copper strips or copper wire braid shielded.
3, full performance cables of nuclear power according to claim 2 is characterized in that: the wrapped shielding rate of putting up of copper strips is not less than 15%, and copper wire braid shielded count is not less than 85%.
4, full performance cables of nuclear power according to claim 1 is characterized in that: conductor (1) adopts copper wire or tinned copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200886446U CN201130548Y (en) | 2007-11-26 | 2007-11-26 | Complete performance nuclear power plant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200886446U CN201130548Y (en) | 2007-11-26 | 2007-11-26 | Complete performance nuclear power plant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130548Y true CN201130548Y (en) | 2008-10-08 |
Family
ID=40018414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200886446U Expired - Fee Related CN201130548Y (en) | 2007-11-26 | 2007-11-26 | Complete performance nuclear power plant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130548Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853716A (en) * | 2010-05-28 | 2010-10-06 | 湖南金杯电缆有限公司 | High-flame-resistance environment-friendly refractory control cable for nuclear power station |
| CN102354568A (en) * | 2011-09-19 | 2012-02-15 | 江苏东旭电缆有限公司 | Large-carrying-capacity and environmentally-friendly direct current cable used for fixed laying |
| CN102831970A (en) * | 2012-08-15 | 2012-12-19 | 无锡市东田电缆有限公司 | Novel insulation shield cable |
| CN103632757A (en) * | 2013-11-06 | 2014-03-12 | 开开电缆科技有限公司 | Double-insulation irradiation cross-linking high-service life nuclear-grade electric wire |
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
-
2007
- 2007-11-26 CN CNU2007200886446U patent/CN201130548Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853716A (en) * | 2010-05-28 | 2010-10-06 | 湖南金杯电缆有限公司 | High-flame-resistance environment-friendly refractory control cable for nuclear power station |
| CN101853716B (en) * | 2010-05-28 | 2012-08-22 | 湖南金杯电缆有限公司 | High-flame-resistance environment-friendly refractory control cable for nuclear power station |
| CN102354568A (en) * | 2011-09-19 | 2012-02-15 | 江苏东旭电缆有限公司 | Large-carrying-capacity and environmentally-friendly direct current cable used for fixed laying |
| CN102831970A (en) * | 2012-08-15 | 2012-12-19 | 无锡市东田电缆有限公司 | Novel insulation shield cable |
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
| CN103811109B (en) * | 2012-11-14 | 2016-06-29 | 湖北龙腾红旗电缆(集团)有限公司 | Low smoke and zero halogen anti-ultraviolet frequency-changing cable |
| CN103632757A (en) * | 2013-11-06 | 2014-03-12 | 开开电缆科技有限公司 | Double-insulation irradiation cross-linking high-service life nuclear-grade electric wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |