CN103871661A - Power cable special for securely attached nuclear power station - Google Patents
Power cable special for securely attached nuclear power station Download PDFInfo
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- CN103871661A CN103871661A CN201410063327.3A CN201410063327A CN103871661A CN 103871661 A CN103871661 A CN 103871661A CN 201410063327 A CN201410063327 A CN 201410063327A CN 103871661 A CN103871661 A CN 103871661A
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Abstract
The invention discloses a power cable special for a securely attached nuclear power station, which is applied to the nuclear power station for power transmission. The power cable comprises a plurality of electric conductors, wherein the electric conductors are integrally wrapped by flexible materials, gaps exist among the electric conductors, a first shielding layer, a second shielding layer, a first sheath and a second sheath are sequentially wrapped in the periphery of the flexible materials, each electric conductor comprises two wires, each wire is provided with a core positioned in the central part and an insulating layer wrapped in the periphery of the core, the spacing between every two wires is not smaller than the radius of the core and is not greater than the diameter of the core, every two wires are integrally wrapped by shielding materials to form one electric conductor, the first shielding layer is of a wrapping structure, and the second shielding layer is of a woven structure. The power cable special for the securely attached nuclear power station disclosed by the invention is good in anti-interference performance, high in anti-pressure capability and simple to replace.
Description
Technical field
The present invention relates to power cable technical field, relate in particular to a kind of safety-type nuclear 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.Meanwhile, meanwhile, nuclear power is with having hyperbaric environment in cable environment for use, common power cable uses easily deformable under hyperbaric environment, be mainly to use high-strength material to make to resist high pressure at present, and for the requirement of nuclear plant safety, install firmly by power cable, especially during by hole, often fixing very firm, and the cable that high-strength material is made is not quick detachable after fixing, easily damage in unloading process, improve cable replacement cost, and cost of manufacture is higher.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of safety-type nuclear power station specialized power cable, carry out electric power transfer for nuclear power station, its anti-tampering performance is good, anti-pressure ability strong and change simple and easy.
A kind of safety-type nuclear power station specialized power cable that the present invention proposes, carry out electric power transfer for nuclear power station, comprise some electric conductors, above-mentioned electric conductor be integrated by flexible material parcel and each electric conductor between there is gap, flexible material periphery is enclosed with the first screen successively, secondary shielding layer, the first sheath, the second sheath, wherein: electric conductor comprises two wires, above-mentioned wire has the core body that is positioned at heart portion and the insulating barrier that is wrapped in core body periphery, the spacing of two wires is not less than the radius of core body and is not more than the diameter of core body, two wires are formed as one electric conductor by shielding material parcel, the first screen is lapping structure, and secondary shielding layer is woven mesh structure.
Preferably, the long side direction length of electric conductor cross section is 2-3 times of short side direction length, and the quantity of electric conductor is six, and two electric conductors are arranged above and below cloth setting in middle part, four electric conductors are positioned at four sides, and the long side direction axis that is positioned at four electric conductors of four sides forms square.
Preferably, the long side direction length of electric conductor cross section is 2.5 times of short side direction length.
Preferably, the long side direction both sides of electric conductor cross section are arc.
Preferably, the component of the second sheath is by weight: polyvinyl chloride, 70-95 part; Carbon black, 19-23 part; Triphenyl phosphate, 2-3 part; Epoxyoleic acid butyl ester, 8-10 part; Aluminium hydroxide, 23-26 part; Cumyl peroxide, 3-4 part; Triallyl isocyanuric acid fat, 1-3 part; Vinyltriethoxysilane, 1-2 part; Antioxidant 2-2.4 part; Magnesium oxide, 1-2 part; Zinc oxide, 3-4 part; Stearic acid, 1-3 part; Aluminate coupling agent 0.5-1 part.
In the present invention, in electric conductor, shielding material can effectively prevent the generation mutual electromagnetic interference between wire, can effectively prevent that between electric conductor, producing mutual electromagnetic disturbs simultaneously, the first screen arranging in cable, in secondary shielding layer and electric conductor, shielding material forms three layers of shielding system, 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, the first screen and secondary shielding layer adopt respectively lapping structure and woven mesh structure, can strengthen cable to external world when antijamming capability, be conducive to strengthen the mechanical performance of cable, adopt flexible material that electric conductor parcel is integrated, between each electric conductor, leave the gap that is full of flexible material simultaneously, can greatly promote anti-extrusion ability and the anti-crawl agentdefiection ability of cable and make cable can carry out micro-distortion, thereby being conducive to carry out cable position adjustment and replacing, adopt duplex sheath structure, both can strengthen the protection to cable, be convenient to by the selection to different sheath materials the challenge bringing to tackle harsh environment for use simultaneously, in the second sheath raw material, magnesium oxide, zinc oxide, stearic being used in conjunction with, promote the thermal stability of protection overcoat, triphenyl phosphate and the composite use of epoxyoleic acid butyl ester, improve the anti-flammability of protection overcoat, being used in conjunction with of antioxidant, aluminium hydroxide, aluminate coupling agent, has promoted the flame retardant effect of protection overcoat, can play the effect of cooperative flame retardant.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of safety-type nuclear power station specialized power cable of proposing of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of safety-type nuclear power station specialized power cable of proposing of the present invention.
With reference to Fig. 1, a kind of safety-type nuclear power station specialized power cable that the present invention proposes, carry out electric power transfer for nuclear power station, comprise some electric conductors 1, above-mentioned electric conductor 1 be integrated by flexible material 2 parcel and each electric conductor 1 between there is gap, flexible material 2 peripheries are enclosed with the first screen 3 successively, secondary shielding layer 4, the first sheath 5, the second sheath 6, wherein: electric conductor 1 comprises two wires, above-mentioned wire has the core body 11 that is positioned at heart portion and the insulating barrier 12 that is wrapped in core body 11 peripheries, the spacing of two wires is not less than the radius of core body 11 and is not more than the diameter of core body 11, two wires are formed as one electric conductor 1 by shielding material 13 parcels, the first screen 3 is lapping structure, and secondary shielding layer 4 is woven mesh structure.
In technique scheme, in electric conductor 1, shielding material 13 can effectively prevent the generation mutual electromagnetic interference between wire, can effectively prevent that between electric conductor 1, producing mutual electromagnetic disturbs simultaneously, the first screen 3 arranging in cable, in secondary shielding layer 4 and electric conductor 1, shielding material 13 forms three layers of shielding system, 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, the first screen 3 and secondary shielding layer 4 adopt respectively lapping structure and woven mesh structure, can strengthen cable to external world when antijamming capability, be conducive to strengthen the mechanical performance of cable, adopt flexible material 2 that electric conductor 1 parcel is integrated, between each electric conductor 1, leave the gap that is full of flexible material 2 simultaneously, can greatly promote anti-extrusion ability and the anti-crawl agentdefiection ability of cable and make cable can carry out micro-distortion, thereby being conducive to carry out cable position adjustment and replacing, adopt duplex sheath structure, both can strengthen the protection to cable, be convenient to by the selection to different sheath materials the challenge bringing to tackle harsh environment for use simultaneously.
In specific design process, the long side direction length of electric conductor 1 cross section is 2.5 times of short side direction length, the quantity of electric conductor 1 is six, two electric conductors 1 are arranged above and below cloth setting in middle part, four electric conductors 1 are positioned at four sides, and the long side direction axis that is positioned at four electric conductors 1 of four sides forms square.
Under above-mentioned improvement design, in the time that cable is subject to external force extrusion process, because being arranged in flexible material 2, electric conductor 1 wraps up environment, flexible material 2 is out of shape, move with the distortion of flexible material 2 electric conductor 1 position, four electric conductors 1 that are positioned at four sides can be to being positioned at drawing close of middle part, because the long side direction axis of four electric conductors 1 that are positioned at four sides forms square, thereby for the movement of electric conductor 1 is reserved with sufficient space, on the basis of bearing moderate finite deformation, can effectively prevent the damage of electric conductor 1.
In specific design process, the long side direction both sides of electric conductor 1 cross section are arc.
Under above-mentioned improvement design, in the time that cable is subject to external force extrusion process, stressed can the decomposition of electric conductor 1 cross section long side direction, is conducive to the stability of electric conductor 1 displacement in deformation process.
In concrete technical process, the component of the second sheath 6 is by weight: polyvinyl chloride, 70-95 part; Carbon black, 19-23 part; Triphenyl phosphate, 2-3 part; Epoxyoleic acid butyl ester, 8-10 part; Aluminium hydroxide, 23-26 part; Cumyl peroxide, 3-4 part; Triallyl isocyanuric acid fat, 1-3 part; Vinyltriethoxysilane, 1-2 part; Antioxidant 2-2.4 part; Magnesium oxide, 1-2 part; Zinc oxide, 3-4 part; Stearic acid, 1-3 part; Aluminate coupling agent 0.5-1 part.
In above-mentioned design; magnesium oxide, zinc oxide, stearic being used in conjunction with; promote the thermal stability of protection overcoat; triphenyl phosphate and the composite use of epoxyoleic acid butyl ester; improve the anti-flammability of protection overcoat; being used in conjunction with of antioxidant, aluminium hydroxide, aluminate coupling agent, has promoted the flame retardant effect of protection overcoat, can play the effect of cooperative flame retardant.
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 (4)
1. a safety-type nuclear power station specialized power cable, carry out electric power transfer for nuclear power station, it is characterized in that, comprise some electric conductors (1), above-mentioned electric conductor (1) be integrated by flexible material (2) parcel and each electric conductor (1) between there is gap, flexible material (2) periphery is enclosed with the first screen (3) successively, secondary shielding layer (4), the first sheath (5), the second sheath (6), wherein: electric conductor (1) comprises two wires, above-mentioned wire has the insulating barrier (12) that is positioned at the core body (11) of heart portion and is wrapped in core body (11) periphery, the spacing of two wires is not less than the radius of core body (11) and is not more than the diameter of core body (11), two wires are formed as one electric conductor (1) by shielding material (13) parcel, the first screen (3) is lapping structure, and secondary shielding layer (4) is woven mesh structure.
2. safety-type nuclear power station specialized power cable according to claim 1, it is characterized in that, the long side direction length of electric conductor (1) cross section is 2-3 times of short side direction length, the quantity of electric conductor (1) is six, two electric conductors (1) are arranged above and below cloth setting in middle part, four electric conductors (1) are positioned at four sides, and the long side direction axis that is positioned at four electric conductors (1) of four sides forms square.
3. safety-type nuclear power station specialized power cable according to claim 2, is characterized in that, the long side direction length of electric conductor (1) cross section is 2.5 times of short side direction length.
4. safety-type nuclear power station specialized power cable according to claim 2, is characterized in that, the long side direction both sides of electric conductor (1) cross section are arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063327.3A CN103871661B (en) | 2014-02-24 | 2014-02-24 | A kind of safety-type nuclear power station specialized power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063327.3A CN103871661B (en) | 2014-02-24 | 2014-02-24 | A kind of safety-type nuclear power station specialized power cable |
Publications (2)
| Publication Number | Publication Date |
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| CN103871661A true CN103871661A (en) | 2014-06-18 |
| CN103871661B CN103871661B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410063327.3A Expired - Fee Related CN103871661B (en) | 2014-02-24 | 2014-02-24 | A kind of safety-type nuclear power station specialized power cable |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1150305A2 (en) * | 2000-04-26 | 2001-10-31 | Avaya Technology Corp. | Electrical cable apparatus having reduced attenuation and method for making |
| CN101303916A (en) * | 2008-06-30 | 2008-11-12 | 山东华凌电缆有限公司 | Computer cable for nuclear power plant |
| CN201219042Y (en) * | 2008-06-30 | 2009-04-08 | 山东华凌电缆有限公司 | Computer cable for nuclear power plant |
| CN201383372Y (en) * | 2009-04-09 | 2010-01-13 | 四川明星电缆股份有限公司 | Radiation-resistance combination shielding compensation cable used for nuclear power station |
| CN102074299A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding electric cable special for nuclear power |
| CN102956324A (en) * | 2011-08-23 | 2013-03-06 | 江苏上上电缆集团有限公司 | Low-voltage power cable for nuclear power station |
| CN103545044A (en) * | 2012-07-09 | 2014-01-29 | 金坛市金鹿电缆材料有限公司 | High-temperature-resistant double-shielded nuclear power cable |
| CN203826107U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | Safe nuclear-power-station special-purpose power cable |
-
2014
- 2014-02-24 CN CN201410063327.3A patent/CN103871661B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1150305A2 (en) * | 2000-04-26 | 2001-10-31 | Avaya Technology Corp. | Electrical cable apparatus having reduced attenuation and method for making |
| CN101303916A (en) * | 2008-06-30 | 2008-11-12 | 山东华凌电缆有限公司 | Computer cable for nuclear power plant |
| CN201219042Y (en) * | 2008-06-30 | 2009-04-08 | 山东华凌电缆有限公司 | Computer cable for nuclear power plant |
| CN201383372Y (en) * | 2009-04-09 | 2010-01-13 | 四川明星电缆股份有限公司 | Radiation-resistance combination shielding compensation cable used for nuclear power station |
| CN102074299A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Triple shielding electric cable special for nuclear power |
| CN102956324A (en) * | 2011-08-23 | 2013-03-06 | 江苏上上电缆集团有限公司 | Low-voltage power cable for nuclear power station |
| CN103545044A (en) * | 2012-07-09 | 2014-01-29 | 金坛市金鹿电缆材料有限公司 | High-temperature-resistant double-shielded nuclear power cable |
| CN203826107U (en) * | 2014-02-24 | 2014-09-10 | 安徽华联电缆集团有限公司 | Safe nuclear-power-station special-purpose power cable |
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| CN103871661B (en) | 2016-04-06 |
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