CN102074284A - Dual-shielding flame-retardant nuclear power data cable - Google Patents
Dual-shielding flame-retardant nuclear power data cable Download PDFInfo
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- CN102074284A CN102074284A CN2010106208289A CN201010620828A CN102074284A CN 102074284 A CN102074284 A CN 102074284A CN 2010106208289 A CN2010106208289 A CN 2010106208289A CN 201010620828 A CN201010620828 A CN 201010620828A CN 102074284 A CN102074284 A CN 102074284A
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Abstract
The invention discloses a dual-shielding flame-retardant nuclear power data cable. The cable consists of an outer insulating sleeve, a first shielding layer, an inner insulating sleeve, a second shielding layer, an insulating mesh belt, a sheath, a heat insulation film and a data-core wiring harness, wherein the heat insulation film, the sheath, the insulating mesh belt, the second shielding layer, the inner insulating sleeve, the first shielding layer and the outer insulating sleeve are arranged out of the data-core wiring harness in turn. Because the data-core wiring harness is protected by two metal shielding layers, the data cable cannot be interfered by an external electric field and an external magnetic field; an electromagnetic field generated by the data cable is also shielded; therefore, the dual-shielding flame-retardant nuclear power data cable can not only eliminate the external interface caused by higher harmonics, but also improve the fireproof performance of the data cable. The special structure greatly reduces the interference of the electromagnetic field on a data transmission line, improves the fireproof performance, and protects the stability and the safety of a nuclear power data control system.
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 double shield 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:
Described a kind of double shield flame retardant type nuclear power data cable, it is characterized in that: it is provided with thermal isolation film, sheath, insulation guipure, secondary shielding layer, primary insulation cover, first screen and outer layer insulation cover successively by outer layer insulation cover, first screen, primary insulation cover, secondary shielding layer, insulation guipure, sheath, thermal isolation film and data heart yearn Shu Zucheng outside data heart yearn bundle.
Further, the cross section of described data heart yearn bundle is circular.
Further, described secondary shielding layer is the tubular body that copper wire is woven into.
Further, first screen is that color steel rolls the tubular body that forms.
In the present invention, described outer layer insulation cover, primary insulation cover and sheath are flame retardant rubber, and the insulation guipure is fiberglass braided isometrical guipure.Because data heart yearn bundle is respectively by thermal isolation film, sheath, insulation guipure, secondary shielding layer, primary insulation cover, first screen and outer layer insulation cover, data heart yearn bundle carries out electric field and magnetic field shielding through two road metal screen layers, 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;
Among the figure: 1-outer layer insulation cover; 2-first screen; 3-primary insulation cover; 4-secondary shielding layer; The 5-guipure that insulate; The 6-sheath; The 7-thermal isolation film; 8-data heart yearn bundle.
Embodiment:
A kind of double shield flame retardant type nuclear power data cable, as shown in Figure 1, it is by outer layer insulation cover 1, first screen 2, primary insulation cover 3, secondary shielding layer 4, insulation guipure 5, sheath 6, thermal isolation film 7 and data heart yearn bundle 8 are formed, outside data heart yearn bundle 8, be provided with thermal isolation film 7 successively, sheath 6, insulation guipure 5, secondary shielding layer 4, primary insulation cover 3, first screen 2 and outer layer insulation cover 1, the cross section of described data heart yearn bundle 8 is circular, the tubular body that described secondary shielding layer 4 is woven into for copper wire, the tubular body that first screen 2 forms for color steel rolls, described outer layer insulation cover 1, primary insulation cover 3 and sheath 6 are flame retardant rubber, and insulation guipure 5 is fiberglass braided isometrical guipure.
Claims (3)
1. double shield flame retardant type nuclear power data cable, it is characterized in that: it is made up of outer layer insulation cover (1), first screen (2), primary insulation cover (3), secondary shielding layer (4), insulation guipure (5), sheath (6), thermal isolation film (7) and data heart yearn bundle (8), is provided with thermal isolation film (7), sheath (6), insulation guipure (5), secondary shielding layer (4), primary insulation cover (3), first screen (2) and outer layer insulation cover (1) outside data heart yearn bundle (8) successively.
2. according to the described double shield flame retardant type of claim 1 nuclear power data cable, it is characterized in that: the cross section of described data heart yearn bundle (8) is for circular.
3. according to the described double shield flame retardant type of claim 1 nuclear power data cable, it is characterized in that: the tubular body that described secondary shielding layer (4) is woven into for copper wire, the tubular body that first screen (2) forms for color steel rolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208289A CN102074284A (en) | 2010-12-29 | 2010-12-29 | Dual-shielding flame-retardant nuclear power data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208289A CN102074284A (en) | 2010-12-29 | 2010-12-29 | Dual-shielding flame-retardant nuclear power data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102074284A true CN102074284A (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106208289A Pending CN102074284A (en) | 2010-12-29 | 2010-12-29 | Dual-shielding flame-retardant nuclear power data cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN102074284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609128Y (en) * | 2003-02-25 | 2004-03-31 | 德阳电缆股份有限公司 | Shielded power cable |
| CN2645181Y (en) * | 2003-04-30 | 2004-09-29 | 德阳电缆股份有限公司 | Masking type fire resistant antiseptic flame-proof cable |
| 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 |
| CN201904113U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Double-shielding flame-retardant type nuclear power data cable |
-
2010
- 2010-12-29 CN CN2010106208289A patent/CN102074284A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609128Y (en) * | 2003-02-25 | 2004-03-31 | 德阳电缆股份有限公司 | Shielded power cable |
| CN2645181Y (en) * | 2003-04-30 | 2004-09-29 | 德阳电缆股份有限公司 | Masking type fire resistant antiseptic flame-proof cable |
| 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 |
| CN201904113U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Double-shielding flame-retardant type nuclear power data cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847635A (en) * | 2018-06-29 | 2018-11-20 | 苏州优康通信设备有限公司 | A kind of communications cable terminal box |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |