CN103854772A - Special power cable for high-shielding nuclear power plant - Google Patents
Special power cable for high-shielding nuclear power plant Download PDFInfo
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- CN103854772A CN103854772A CN201410062457.5A CN201410062457A CN103854772A CN 103854772 A CN103854772 A CN 103854772A CN 201410062457 A CN201410062457 A CN 201410062457A CN 103854772 A CN103854772 A CN 103854772A
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Abstract
The invention discloses a special power cable for a high-shielding nuclear power plant. The special power cable is used for power transmission of the nuclear power plant. The special power cable comprises three power transmission wires, and the middle axes of the three power transmission wires are distributed in a triangular shape. Each power transmission wire comprises a plurality of conductive core bodies located in the center, a first insulating layer and a first shielding layer, wherein the first insulating layer and the first shielding layer wrap the conductive core bodies in sequence, and the periphery of each power transmission wire is provided with a packing layer formed by building packing strips, wherein a second shielding layer, a second insulating layer, a thermal-protective coating, a inflaming retarding layer, an oxygen isolation layer, a third shielding layer, a third insulating layer and a protection coat are arranged outside the packing layer in sequence, the cross section of each packing strip is square, and the second shielding layer is of a net-shaped structure. The special power cable for the high-shielding nuclear power plant is good in anti-jamming performance and easy to dismount.
Description
Technical field
The present invention relates to power cable technical field, relate in particular to a kind of high shielded nucleus power station specialized power cable.
Background technology
Along with the fast development of national economy, electricity needs increases fast, has stimulated the fast development of Nuclear Power Industry.The fast development of Nuclear Power Industry to the demand of nuclear power cable increasing and require more and more higher.At present, both at home and abroad to nuclear power power cable propose " electromagnetic compatibility " without electromagnetic interference requirement, the existing environment for use that cannot adapt to nuclear power station harshness as transferring electric power common power cable used, in the time that electric current passes through power cable, can produce and disturb with control system contiguous distribution line is electric, the serious normal operation of whole system of also can giving brings hidden danger, reduces the fail safe of nuclear power station., for the requirement of nuclear plant safety, install firmly by power cable meanwhile, especially when the hole, often fixing very firm, cause carrying out that cable is changed inconvenience and workload is large.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of high shielded nucleus power station specialized power cable, carry out electric power transfer for nuclear power station, its anti-tampering performance good and be easy to dismounting.
The high shielded nucleus of the one power station specialized power cable that the present invention proposes, carry out electric power transfer for nuclear power station, comprise three electric power transmission leads, the axis axis distribution triangular in shape of above-mentioned three electric power transmission leads, every electric power transmission lead comprises the some conductive cores that are positioned at heart portion and the first insulating barrier that is wrapped in successively above-mentioned external week of wire stylet, the first screen, electric power transmission lead periphery is by the packing packed layer forming of bonding, packed layer periphery is followed successively by secondary shielding layer, the second insulating barrier, thermal insulation layer, flame-retardant layer, oxygen barrier layer, the 3rd screen, the 3rd insulating barrier, protection overcoat, wherein, the cross section of packing is square, secondary shielding layer is network structure.
Preferably, in three common interstitial spaces that form of electric power transmission lead, be provided with telecommunication optical fiber.
Preferably, the first insulating barrier and the first screen fit tightly and are formed as one the first boundary belt.
Preferably, the second insulating barrier and secondary shielding layer fit tightly and are formed as one the second boundary belt.
Preferably, the 3rd insulating barrier and the 3rd screen fit tightly and are formed as one the 3rd boundary belt.
Preferably, the some conductive core close-packed arrays of electric power transmission lead heart portion form core body bundle.
Preferably, protection overcoat raw material components is: ethylene propylene diene rubber, 35-45 part; Mica powder, 20-25 part; Hydroxy silicon oil, 1-2 part; Zinc oxide, 3-5 part; Age resistor, 0.5-1.5 part; Paraffin, 1-3 part; Stearic acid, 0.3-0.5 part; Silane coupler, 0.5-1 part; Talcum powder, 10-20 part; Calcium powder, 10-15 part; Calcinated argil, 12-18 part; White Carbon black, 2-4 part; Paraffin oil, 3-4 part; Cumyl peroxide, 1.5-2.5 part; Crosslinking agent, 1-3 part.
In the present invention, the first screen that electric power transmission lead carries can effectively prevent that between electric power transmission lead, producing mutual electromagnetic disturbs, the secondary shielding layer arranging in cable, three layers of shielding system of the common formation of the 3rd screen and the first screen, therefore, in electric power course of conveying, extraneous Electric and magnetic fields can not disturb power cable, power cable carries out the electromagnetic field that produces in electric power transfer process also can conductively-closed, can not produce and disturb closing on the electric and control system of distribution line, thermal insulation layer, flame-retardant layer, the cable that is arranged so that of oxygen barrier layer can better adapt to the environment for use of nuclear power station harshness, packed layer packing is bonded and is formed, in the time carrying out cable replacing, can first the packing that is positioned at internal layer be extracted out, because secondary shielding layer is for having inotropic network structure, cable radius is reduced, thereby reduce the difficulty that cable is changed, simultaneously, packing cross section adopts square, makes itself and electric power transmission lead contact area have certain microgap, thereby can improve the shock resistance of cable, in protection overcoat raw material, ethylene propylene diene rubber can improve superior heat-resisting as major ingredient, resistance to oxidation, erosion-resisting characteristics, by adding mica powder, good fire resistance and electric durability energy can be provided, silane coupler is as coupling between inorganic fillers and high-polymer molecular, be conducive to improve the mechanical strength of polymer, and can improve processing characteristics, calcium powder can increase material volume as filler, reduce costs, in sizing material, be easy to disperse, improve processing performance, and can improve mechanical performance, calcinated argil has good thermal endurance as reinforcing agent, tensile property is got well and is easy to and processes.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of high shielded nucleus power station specialized power cable that proposes of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of high shielded nucleus power station specialized power cable that proposes of the present invention.
With reference to Fig. 1, the high shielded nucleus of the one power station specialized power cable that the present invention proposes, carry out electric power transfer for nuclear power station, comprise three electric power transmission leads, the axis axis distribution triangular in shape of above-mentioned three electric power transmission leads, every electric power transmission lead comprises the first insulating barrier 2 that is positioned at some conductive cores 1 of heart portion and is wrapped in successively above-mentioned external week of wire stylet, the first screen 3, electric power transmission lead periphery is by the packing packed layer 5 forming of bonding, packed layer 5 peripheries are followed successively by secondary shielding layer 6, the second insulating barrier 7, thermal insulation layer 10, flame-retardant layer 11, oxygen barrier layer 12, the 3rd screen 8, the 3rd insulating barrier 9, protection overcoat 13, wherein, the cross section of packing is square, secondary shielding layer 6 is network structure.
In technique scheme, the first screen 3 that electric power transmission lead carries can effectively prevent that between electric power transmission lead, producing mutual electromagnetic disturbs, the secondary shielding layer 6 arranging in cable, the 3rd screen 8 and three layers of shielding system of the first screen 3 common formation, therefore, in electric power course of conveying, extraneous Electric and magnetic fields can not disturb power cable, power cable carries out the electromagnetic field that produces in electric power transfer process also can conductively-closed, can not produce and disturb closing on the electric and control system of distribution line, thermal insulation layer 10, flame-retardant layer 11, the cable that is arranged so that of oxygen barrier layer 12 can better adapt to the environment for use of nuclear power station harshness, packed layer 5 packings are bonded and are formed, in the time carrying out cable replacing, can first the packing that is positioned at internal layer be extracted out, because secondary shielding layer 6 is for having inotropic network structure, cable radius is reduced, thereby reduce the difficulty that cable is changed, simultaneously, packing cross section adopts square, makes itself and electric power transmission lead contact area have certain microgap, thereby can improve the shock resistance of cable.
In specific design process, in three common interstitial spaces that form of electric power transmission lead, be provided with telecommunication optical fiber 4.
Under above-mentioned improvement design, cable is being carried out on the basis of electric power transfer, also can communicate transmission, thereby expand the scope of application of cable.
In specific design process, the first insulating barrier 2 and the first screen 3 fit tightly and are formed as one the first boundary belt; The second insulating barrier 7 fits tightly and is formed as one the second boundary belt with secondary shielding layer 6; The 3rd insulating barrier 9 and the 3rd screen 8 fit tightly and are formed as one the 3rd boundary belt.
Under above-mentioned improvement design, insulating barrier and screen are fitted tightly to the structural design being integrated, can form insulation shielding community.
In specific design process, some conductive core 1 close-packed arrays of electric power transmission lead heart portion form core body bundle.
In specific design process, protection overcoat 13 raw material components are: ethylene propylene diene rubber, 35-45 part; Mica powder, 20-25 part; Hydroxy silicon oil, 1-2 part; Zinc oxide, 3-5 part; Age resistor, 0.5-1.5 part; Paraffin, 1-3 part; Stearic acid, 0.3-0.5 part; Silane coupler, 0.5-1 part; Talcum powder, 10-20 part; Calcium powder, 10-15 part; Calcinated argil, 12-18 part; White Carbon black, 2-4 part; Paraffin oil, 3-4 part; Cumyl peroxide, 1.5-2.5 part; Crosslinking agent, 1-3 part.
In above-mentioned design, ethylene propylene diene rubber can improve superior heat-resisting as major ingredient, resistance to oxidation, erosion-resisting characteristics, by adding mica powder, good fire resistance and electric durability energy can be provided, silane coupler is as coupling between inorganic fillers and high-polymer molecular, be conducive to improve the mechanical strength of polymer, and can improve processing characteristics, calcium powder can increase material volume as filler, reduce costs, in sizing material, be easy to disperse, improve processing performance, and can improve mechanical performance, calcinated argil has good thermal endurance as reinforcing agent, tensile property is got well and is easy to and processes.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a high shielded nucleus power station specialized power cable, carry out electric power transfer for nuclear power station, it is characterized in that, comprise three electric power transmission leads, the axis axis distribution triangular in shape of above-mentioned three electric power transmission leads, every electric power transmission lead comprises the some conductive cores (1) that are positioned at heart portion and the first insulating barrier (2) that is wrapped in successively above-mentioned external week of wire stylet, the first screen (3), electric power transmission lead periphery is by the packing packed layer (5) forming of bonding, packed layer (5) periphery is followed successively by secondary shielding layer (6), the second insulating barrier (7), thermal insulation layer (10), flame-retardant layer (11), oxygen barrier layer (12), the 3rd screen (8), the 3rd insulating barrier (9), protection overcoat (13), wherein, the cross section of packing is square, secondary shielding layer (6) is network structure.
2. high shielded nucleus according to claim 1 power station specialized power cable, is characterized in that, in three common interstitial spaces that form of electric power transmission lead, is provided with telecommunication optical fiber (4).
3. high shielded nucleus according to claim 1 power station specialized power cable, is characterized in that, the first insulating barrier (2) fits tightly and is formed as one the first boundary belt with the first screen (3).
4. high shielded nucleus according to claim 1 power station specialized power cable, is characterized in that, the second insulating barrier (7) fits tightly and is formed as one the second boundary belt with secondary shielding layer (6).
5. high shielded nucleus according to claim 1 power station specialized power cable, is characterized in that, the 3rd insulating barrier (9) fits tightly and is formed as one the 3rd boundary belt with the 3rd screen (8).
6. high shielded nucleus according to claim 1 power station specialized power cable, is characterized in that, the some conductive cores of electric power transmission lead heart portion (1) close-packed arrays forms core body bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062457.5A CN103854772A (en) | 2014-02-24 | 2014-02-24 | Special power cable for high-shielding nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062457.5A CN103854772A (en) | 2014-02-24 | 2014-02-24 | Special power cable for high-shielding nuclear power plant |
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| CN103854772A true CN103854772A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410062457.5A Pending CN103854772A (en) | 2014-02-24 | 2014-02-24 | Special power cable for high-shielding nuclear power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282376A (en) * | 2014-09-26 | 2015-01-14 | 东莞市日新传导科技股份有限公司 | High-anti-interference special cable and manufacturing method thereof |
| CN106782841A (en) * | 2016-11-25 | 2017-05-31 | 国网河南嵩县供电公司 | A kind of hollow core cable |
| CN115279163A (en) * | 2022-08-19 | 2022-11-01 | 中国南方电网有限责任公司超高压输电公司广州局 | Shielding device and valve tower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704975A (en) * | 2009-11-25 | 2010-05-12 | 威尔鹰集团有限公司 | Insulation rubber for cable |
| CN102074286A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding flame retardant type nuclear power data cable |
| CN202258471U (en) * | 2011-09-07 | 2012-05-30 | 福建南平太阳电缆股份有限公司 | Environment-friendly fire-proof medium-voltage cable |
| CN102610317A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Variable frequency cable |
| KR20130071052A (en) * | 2011-12-20 | 2013-06-28 | 엘에스전선 주식회사 | Electric cable for nuclear power plant easy to monitoring condition and fabrication method thereof |
| CN203826059U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | High-shielding nuclear-power-station special-purpose power cable |
-
2014
- 2014-02-24 CN CN201410062457.5A patent/CN103854772A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704975A (en) * | 2009-11-25 | 2010-05-12 | 威尔鹰集团有限公司 | Insulation rubber for cable |
| CN102074286A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding flame retardant type nuclear power data cable |
| CN202258471U (en) * | 2011-09-07 | 2012-05-30 | 福建南平太阳电缆股份有限公司 | Environment-friendly fire-proof medium-voltage cable |
| KR20130071052A (en) * | 2011-12-20 | 2013-06-28 | 엘에스전선 주식회사 | Electric cable for nuclear power plant easy to monitoring condition and fabrication method thereof |
| CN102610317A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Variable frequency cable |
| CN203826059U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | High-shielding nuclear-power-station special-purpose power cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282376A (en) * | 2014-09-26 | 2015-01-14 | 东莞市日新传导科技股份有限公司 | High-anti-interference special cable and manufacturing method thereof |
| CN106782841A (en) * | 2016-11-25 | 2017-05-31 | 国网河南嵩县供电公司 | A kind of hollow core cable |
| CN115279163A (en) * | 2022-08-19 | 2022-11-01 | 中国南方电网有限责任公司超高压输电公司广州局 | Shielding device and valve tower |
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Application publication date: 20140611 |