CN102074286A - Triple shielding flame retardant type nuclear power data cable - Google Patents
Triple shielding flame retardant type nuclear power data cable Download PDFInfo
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- CN102074286A CN102074286A CN2010106208414A CN201010620841A CN102074286A CN 102074286 A CN102074286 A CN 102074286A CN 2010106208414 A CN2010106208414 A CN 2010106208414A CN 201010620841 A CN201010620841 A CN 201010620841A CN 102074286 A CN102074286 A CN 102074286A
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Abstract
The invention discloses a triple shielding flame retardant type nuclear power data cable which comprises an outer insulating sleeve, a first shielding layer, an inner insulating sleeve, a second shielding layer, a sub-line and a sub-line filling-pressing strip, a data core wire bundle is subjected to three passes of metallic shielding of a sub-line shielding layer, the second shielding layer and the first shielding layer after being wrapped with a heat insulating film. Because the data bundle is respectively wrapped by the heat insulating film, and then is wrapped by a sub-line sheath, a sub-line insulating net belt and the sub-line shielding layer, three sub-lines are wrapped by a bus insulating net belt after the three sub-lines are filled and pressed by the sub-line filling-pressing strip, then are wrapped and combined by the second shielding layer, the inner insulating sleeve, the first shielding layer and the outer insulating sleeve, each data core wire bundle is subjected to three passes of metallic shielding, and is subjected to heat insulation by means of the heat insulating film, thus not only can the data cable not be interfered by an external electric field and an external magnetic field, an electromagnetic field generated by the data cable is also shielded, but also the fireproof performance of the data cable provided by the invention is improved, and the stability and safety of a nuclear power data control system are ensured.
Description
Technical field:
The present invention relates to a kind of data cable, relate in particular to the data cable of used in nuclear power station.
Background technology:
Along with the fast development of nuclear power industry, increasing to the demand of the used data cable of nuclear power station, require also more and more highlyer, at present, the data cable that is used for nuclear power station has been proposed to possess the no electromagnetic interference requirement of " electromagnetic compatibility ".And existing plain edition data cable can not meet the demands; communication system especially for nuclear power control; nuclear power output number sub-control system; remote operating system; the electric power dispensing control system all be can't do without data cable; not only number of data lines is many; and require the performance of anti-electromagnetic interference to get well; especially anti-high order harmonic component interference capability; the control shakiness appears in regular meeting when adopting common data cable; malfunctioning or be interrupted defectives such as out of control; it will directly influence the operate as normal and the electric power control meeting system of whole nuclear power station, bring potential safety hazard can for the normal operation of whole system.Therefore in " nuclear safety guide rule ", emphasize " physical segregation of signal cable and power cable " in HAD102/14 " relevant instrument of npp safety and control system " the 4.8 electrical Interference chapters and sections, data-signal cable and power cable will separate, and all must possess anti-electromagnetic interference capability, can not outwards produce new electromagnetic interference simultaneously.Existing plain edition data cable and power cable all have can not satisfy above-mentioned requirements.
Summary of the invention:
The purpose of this invention is to provide a kind of triple shielding flame retardant type nuclear power data cable, it can have anti-electromagnetic interference performance, satisfies electromagnetic compatibility (EMC) requirement, has fire protecting performance again.
The technical scheme that the present invention takes is:
The fire-retardant nuclear power data cable of described a kind of triple shieldings, 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 data heart yearn Shu Zucheng, outside data heart yearn bundle, 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 data heart yearn bundle is circular.
Further, 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 the diameter of 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.
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.Because the data heart yearn bundle of three root lines is 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, not only make three root lines compose cable securely, and per share data heart yearn bundle is all through three road metallic shields, therefore, can the interfering data cable in the electric field in the external world and magnetic field, the data cable also conductively-closed that generates an electromagnetic field, can not spread, data cable as nuclear power, it can not only eliminate high order harmonic component interference to external world preferably, and has improved the fire protecting performance of data cable.This special construction has reduced external electromagnetic field significantly data line has been disturbed and fire protecting performance, has protected the stability and the fail safe of nuclear power data control system.
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; 65-data heart yearn bundle; 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 data 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 data heart yearn bundle 65 are formed, outside data heart yearn bundle 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, 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 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 cross section of described data heart yearn bundle 65 is circular, and it is that 0.4 millimeter color steel rolls the tubular body that forms that the tubular body that sub-line screen 61 is woven into for copper wire, 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 the diameter of 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 (5)
1. triple shielding flame retardant type nuclear power data 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 (1) is by sub-line screen (61), sub-line insulation guipure (62), sub-line sheath (63), thermal isolation film (64) and data heart yearn bundle (65) are formed, outside data heart yearn bundle (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 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 filling press strips (7) are arranged on three root lines and contact place, formed space, 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 data cables of claim 1, it is characterized in that: the cross section of described data heart yearn bundle (65) is for circular.
3. according to the described triple shielding flame retardant type nuclear power data cables of claim 1, it is characterized in that: 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 data 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 data 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) diameter 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208414A CN102074286A (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame retardant type nuclear power data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208414A CN102074286A (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame retardant type nuclear power data cable |
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| Publication Number | Publication Date |
|---|---|
| CN102074286A true CN102074286A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106208414A Pending CN102074286A (en) | 2010-12-29 | 2010-12-29 | Triple shielding flame retardant type nuclear power data cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854772A (en) * | 2014-02-24 | 2014-06-11 | 安徽华联电缆集团有限公司 | Special power cable for high-shielding nuclear power plant |
| 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 |
| CN104700942A (en) * | 2015-03-10 | 2015-06-10 | 蒋菊生 | Abnormal-shape filling rope for optical cable, cable, photoelectric composite cable or photoelectric comprehensive cable |
-
2010
- 2010-12-29 CN CN2010106208414A patent/CN102074286A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854772A (en) * | 2014-02-24 | 2014-06-11 | 安徽华联电缆集团有限公司 | Special power cable for high-shielding nuclear power plant |
| 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 |
| CN104700942A (en) * | 2015-03-10 | 2015-06-10 | 蒋菊生 | Abnormal-shape filling rope for optical cable, cable, photoelectric composite cable or photoelectric comprehensive cable |
| CN105702349A (en) * | 2015-03-10 | 2016-06-22 | 蒋菊生 | Irregularly-shaped filling rope for optical cable, cable, photoelectric composite cable or photoelectric comprehensive cable |
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Application publication date: 20110525 |