CN102074298A - Triple shielding flame-retardant type power cable special for nuclear power - Google Patents
Triple shielding flame-retardant type power cable special for nuclear power Download PDFInfo
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- CN102074298A CN102074298A CN2010106209205A CN201010620920A CN102074298A CN 102074298 A CN102074298 A CN 102074298A CN 2010106209205 A CN2010106209205 A CN 2010106209205A CN 201010620920 A CN201010620920 A CN 201010620920A CN 102074298 A CN102074298 A CN 102074298A
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Abstract
The invention relates to a triple shielding flame-retardant type power cable special for nuclear power, which comprises an outer insulating sleeve, a first shielding layer, an inner insulating sleeve, a second shielding layer, bus insulating grid belts, sub-wires and sub-wire filling press strips, wherein the sub-wires comprise a sub-wire shielding layer, a sub-wire insulating grid belt, a sub-wire protective sleeve, a heat insulating membrane and wire cores; and the heat insulating membrane, the sub-wire protective sleeve, the sub-wire insulating grid belt and the sub-wire shielding layer are sequentially arranged outside the wire cores. The three wire cores are wrapped by the heat insulating membrane, the sub-wire protecting sleeve, the sub-wire insulating grid belt and the sub-wire shielding layer respectively, the three sub-wires are filled and pressed through the sub-wire filling press strips and firmly glued into a cable and each wire core is shielded through three paths of metal, thus, outside electric fields and magnetic fields cannot interfere with the power cable in the transmission course of electric power; the electric and magnetic fields generated by the electric power are shielded to prevent the interference on an electric and control system of the adjacent distribution circuits; and the special ranking structure of the power cable reduces the shaft voltage generated by electric equipment in a frequency conversion circuit in the operation course and protects the practical safety of the electric equipment.
Description
Technical field:
The present invention relates to a kind of power cable, relate in particular to the power cable of used in nuclear power station.
Background technology:
Along with the fast development of nuclear power industry, increasing to the demand of nuclear power output cable, require also more and more highlyer, at present, the no electromagnetic interference requirement of " electromagnetic compatibility " the nuclear power power cable is proposed both at home and abroad.Have now and can not meet the demands as the used plain edition power cable of transferring electric power, power cable especially for the frequency conversion loop, the in use inevitable high order harmonic component that exists is disturbed, when electric current passes through power cable, can disturb electric the generation with control system of contiguous distribution line, the serious normal operation of whole system of also can giving brings hidden danger.Fail safe is vital in the nuclear power construction, emphasize " physical segregation of signal cable and power cable " in HAD102/14 in " nuclear safety guide rule " " relevant instrument of npp safety and control system " the 4.8 electrical Interference chapters and sections, and the plain edition power cable can not satisfy above-mentioned requirements, can not solve the electromagnetic shielding problem in the power cable transmission of electricity process.
Summary of the invention:
The purpose of this invention is to provide a kind of triple shielding flame retardant type nuclear power special electric power cable, it can satisfy " electromagnetic compatibility (EMC) " and nuclear power " function isolation " requirement, can meet environmental protection (EM) requirement again, cable profile rounding.
The technical scheme that the present invention takes is:
Described a kind of triple shielding flame retardant type nuclear power special electric power cables, it is characterized in that: it is by the outer layer insulation cover, first screen, the primary insulation cover, the secondary shielding layer, the insulated bus guipure, sub-line and sub-line are filled press strip and are formed, described sub-line is by sub-line screen, sub-line insulation guipure, sub-line sheath, thermal isolation film and wire stylet are formed, outside wire stylet, be provided with thermal isolation film successively, sub-line sheath, sub-line insulation guipure and sub-line screen, the cylindrical of the sub-line screen of three root lines is in contact with one another, the center of three root lines is the equilateral triangle setting, three root lines filling press strip is arranged on three root lines and contacts place, formed space, make three root lines and three root lines fill press strip and form circular cross-section, and block by insulated bus guipure net, outside the insulated bus guipure, be provided with the secondary shielding layer successively, the primary insulation cover, first screen and outer layer insulation cover.
Further, the cross section of described wire stylet is by the circular cross-section of copper cash Shu Zucheng.
Further, when the area of section of wire stylet during greater than 35 square millimeters, described sub-line screen is the tubular body that copper sheet material rolls; When the area of section of wire stylet during less than 35 square millimeters, described sub-line screen is the tubular body that copper wire is woven into.
Further, first screen and secondary shielding layer are color steel and roll the tubular body that forms.
Further, the cross sectional shape that described sub-line is filled press strip is combined by an external arc and two interior circular arcs, and external arc is identical with the internal diameter of secondary shielding layer, and the diameter of two interior circular arcs is identical with the external diameter of sub-line screen, two interior circular arcs are circumscribed, and with the external arc inscribe.
Further, the area of section of sub-line screen is 12%～15% of a wire stylet area of section.
In the present invention, described outer layer insulation cover, primary insulation cover and sub-line sheath are flame retardant rubber, and it is flame-proof filling material that sub-line is filled press strip, and insulated bus guipure and sub-line insulation guipure are fiberglass braided isometrical guipure.
In the present invention, because three wire stylets are respectively by thermal isolation film, sub-line sheath, sub-line insulation guipure and sub-line screen wrap up, three root lines are tamped after insulated bus guipure parcel by three root lines filling press strip, again through the secondary shielding layer, the primary insulation cover, the parcel of first screen and outer layer insulation cover is compound, can not only make three root lines compose cable securely, and per share wire stylet is all through three road metallic shields, therefore, power cable can not disturbed in electric field and magnetic field extraneous in the electric power course of conveying, the power cable also conductively-closed that generates an electromagnetic field, can not spread, can electric and control system generation interference to contiguous distribution line.As the electric energy transmitting cable of nuclear power, it can not only eliminate high order harmonic component interference to external world preferably, and its specific arrangement structure, has reduced the shaft voltage that electrical appliance is in operation and produces in the frequency conversion loop, has protected the safety of electrical appliance practicality.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 fills the structural representation of press strip for the sub-line among the present invention;
Among the figure: 1-outer layer insulation cover; 2-first screen; 3-primary insulation cover; 4-secondary shielding layer;
5-insulated bus guipure; 6-line; 61-line screen; 62-line insulation guipure; 63-line sheath;
The 64-thermal isolation film; The 65-wire stylet; 7-line is filled press strip; The 71-external arc; Circular arc in the 72-.
Embodiment:
A kind of triple shielding flame retardant type nuclear power special electric power cable, as Fig. 1, shown in Figure 2, it is by outer layer insulation cover 1, first screen 2, primary insulation cover 3, secondary shielding layer 4, insulated bus guipure 5, sub-line 6 and sub-line are filled press strip 7 and are formed, described sub-line 6 is by sub-line screen 61, sub-line insulation guipure 62, sub-line sheath 63, thermal isolation film 64 and wire stylet 65 are formed, outside wire stylet 65, be provided with thermal isolation film 64 successively, sub-line sheath 63, sub-line insulation guipure 62 and sub-line screen 61, the cylindrical of three root lines 6 is in contact with one another, their center is the equilateral triangle setting, three root lines are filled press strip 7 and are arranged on the formed space of three root lines, 6 contacts, make three root lines 6 and three root lines fill press strip 7 and form circular cross-section, and block by insulated bus guipure 5 nets, outside insulated bus guipure 5, be provided with secondary shielding layer 4 successively, primary insulation cover 3, first screen 2 and outer layer insulation cover 1; The circular cross-section of the cross section of described wire stylet 65 for being combined into by the copper cash bundle, the sectional area of wire stylet 65 is 22 square millimeters, the tubular body that sub-line screen 61 rolls for copper sheet material, the sectional area of sub-line screen 61 are wire stylet 65 sectional areas 12%; It is that 0.4 millimeter color steel rolls the tubular body that forms that first screen 2 and secondary shielding layer 4 are thickness; It is flame-proof filling material that described sub-line is filled press strip 7, and its cross sectional shape is combined by an external arc 71 and two interior circular arcs 72, and external arc 71 is identical with the internal diameter of secondary shielding layer 4, and the diameter of two interior circular arcs 72 is identical with the external diameter of sub-line screen 61; Two interior circular arc 72 circumscribed backs all with external arc 71 inscribes, described outer layer insulation cover 1, primary insulation overlap 3 and sub-line sheath 63 be fire retardant insulating rubber, insulated bus guipure 5 and the sub-line guipure 62 that insulate is fiberglass braided isometrical guipure.
Claims (6)
1. triple shielding flame retardant type nuclear power special electric power cable, it is characterized in that: it is by outer layer insulation cover (1), first screen (2), primary insulation cover (3), secondary shielding layer (4), insulated bus guipure (5), sub-line (6) and sub-line are filled press strip (7) and are formed, described sub-line (6) is by sub-line screen (61), sub-line insulation guipure (62), sub-line sheath (63), thermal isolation film (64) and wire stylet (65) are formed, the outer thermal isolation film (64) that is provided with successively of wire stylet (65), sub-line sheath (63), sub-line insulation guipure (62) and sub-line screen (61), the cylindrical of the sub-line screen (61) of three root lines (6) is in contact with one another, the center of three root lines (6) is the equilateral triangle setting, three root lines are filled press strip (7) and are arranged on place, the formed space of three root lines (6) contact, make three root lines (6) and three root lines fill press strip (7) and form circular cross-section, and block by insulated bus guipure (5) net, outside insulated bus guipure (5), be provided with secondary shielding layer (4) successively, primary insulation cover (3), first screen (2) and outer layer insulation cover (1).
2. according to the described triple shielding flame retardant type nuclear power special electric power cables of claim 1, it is characterized in that: the cross section of described wire stylet (65) is by the circular cross-section of copper cash Shu Zucheng.
3. according to the described triple shielding flame retardant type nuclear power special electric power cables of claim 1, it is characterized in that: when the area of section of wire stylet (65) during greater than 35 square millimeters, the tubular body that described sub-line screen (61) rolls for copper sheet material; When the area of section of wire stylet (65) during less than 35 square millimeters, the tubular body that described sub-line screen (61) is woven into for copper wire.
4. according to the described triple shielding flame retardant type nuclear power special electric power cables of claim 1, it is characterized in that: first screen (2) and secondary shielding layer (4) are color steel and roll the tubular body that forms.
5. according to the described triple shielding flame retardant type nuclear power special electric power cables of claim 1, it is characterized in that: the cross sectional shape that described sub-line is filled press strip (7) is combined by an external arc (71) and two interior circular arcs (72), external arc (71) is identical with the internal diameter of secondary shielding layer (4), the diameter of two interior circular arcs (72) is identical with the external diameter of sub-line screen (61), two interior circular arcs (72) are circumscribed, and with external arc (71) inscribe.
6. according to the described triple shielding flame retardant type nuclear power special electric power cables of claim 1, it is characterized in that: the area of section of sub-line screen (61) is 12%～15% of wire stylet (a 65) area of section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620920 CN102074298B (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame-retardant type power cable special for nuclear power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010620920 CN102074298B (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame-retardant type power cable special for nuclear power |
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| Publication Number | Publication Date |
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| CN102074298A true CN102074298A (en) | 2011-05-25 |
| CN102074298B CN102074298B (en) | 2013-02-13 |
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| CN 201010620920 Active CN102074298B (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame-retardant type power cable special for nuclear power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097073A (en) * | 2015-08-31 | 2015-11-25 | 上海长顺电梯电缆有限公司 | Novel conductor twisted process flexible cable and fabrication method thereof |
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| US6225565B1 (en) * | 1999-06-07 | 2001-05-01 | The Untied States Of America As Represented By The Secretary Of The Navy | Flexible cable providing EMI shielding |
| EP1783786A2 (en) * | 2005-11-04 | 2007-05-09 | nkt cables GmbH | Cable system with magnetic screen |
| CN200965813Y (en) * | 2006-10-20 | 2007-10-24 | 广东电缆厂有限公司 | Radiation cross-linking special power cable |
| CN201051420Y (en) * | 2007-05-16 | 2008-04-23 | 江苏华光电缆电器有限公司 | Power cable for nuclear power |
| CN101593578A (en) * | 2009-07-03 | 2009-12-02 | 河北华通线缆集团有限公司 | Steel wire reinforced power cable |
| CN201402667Y (en) * | 2009-05-11 | 2010-02-10 | 林新波 | High voltage power supply and distribution power cable |
| CN201584211U (en) * | 2009-12-11 | 2010-09-15 | 江西电缆有限责任公司 | Medium-voltage water-blocked power cable for nuclear power station |
| CN201584213U (en) * | 2010-03-05 | 2010-09-15 | 九星控股集团有限公司 | Water-resisting steel wire cross-linking power cable |
| CN201904156U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Dedicated triplex-shielding flame-retardant power cable for nuclear power |
-
2010
- 2010-12-29 CN CN 201010620920 patent/CN102074298B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6225565B1 (en) * | 1999-06-07 | 2001-05-01 | The Untied States Of America As Represented By The Secretary Of The Navy | Flexible cable providing EMI shielding |
| EP1783786A2 (en) * | 2005-11-04 | 2007-05-09 | nkt cables GmbH | Cable system with magnetic screen |
| CN200965813Y (en) * | 2006-10-20 | 2007-10-24 | 广东电缆厂有限公司 | Radiation cross-linking special power cable |
| CN201051420Y (en) * | 2007-05-16 | 2008-04-23 | 江苏华光电缆电器有限公司 | Power cable for nuclear power |
| CN201402667Y (en) * | 2009-05-11 | 2010-02-10 | 林新波 | High voltage power supply and distribution power cable |
| CN101593578A (en) * | 2009-07-03 | 2009-12-02 | 河北华通线缆集团有限公司 | Steel wire reinforced power cable |
| CN201584211U (en) * | 2009-12-11 | 2010-09-15 | 江西电缆有限责任公司 | Medium-voltage water-blocked power cable for nuclear power station |
| CN201584213U (en) * | 2010-03-05 | 2010-09-15 | 九星控股集团有限公司 | Water-resisting steel wire cross-linking power cable |
| CN201904156U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Dedicated triplex-shielding flame-retardant power cable for nuclear power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097073A (en) * | 2015-08-31 | 2015-11-25 | 上海长顺电梯电缆有限公司 | Novel conductor twisted process flexible cable and fabrication method thereof |
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| CN102074298B (en) | 2013-02-13 |
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Effective date of registration: 20170726 Address after: 213200 No. 888, Maoshan Avenue, Jintan District, Jiangsu, Changzhou Patentee after: Jiangsu Jinwo Guangdong Electronic Technology Co. Ltd. Address before: 213254 Jintan City, Jiangsu province Maolu tea plantation Patentee before: Jintan Jinlu Cable Material Co., Ltd. |