CN201904113U - Double-shielding flame-retardant type nuclear power data cable - Google Patents
Double-shielding flame-retardant type nuclear power data cable Download PDFInfo
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- CN201904113U CN201904113U CN2010206969656U CN201020696965U CN201904113U CN 201904113 U CN201904113 U CN 201904113U CN 2010206969656 U CN2010206969656 U CN 2010206969656U CN 201020696965 U CN201020696965 U CN 201020696965U CN 201904113 U CN201904113 U CN 201904113U
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- nuclear power
- data
- data cable
- shielding layer
- retardant type
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Abstract
A double-shielding flame-retardant type nuclear power data cable comprises an outer insulating sleeve, a first shielding layer, an inner insulating sleeve, a second shielding layer, an insulating mesh belt, a sheath, heat insulation film, and a data core wire bundle. 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 sequentially arranged outside the data core wire bundle. Since the data core wire bundle is protected by two metal shielding layers, the data cable can not be disturbed by external electric field and magnetic field, the electromagnetic field generated by the data cable is also shielded, not only the disturbance of ultra harmonics to the outside is better eliminated, but also the fire-resistant performance is improved. By adopting the special structure, the disturbance to the data transmission line caused by external electromagnetic field is considerably reduced, the fire-resistant performance is improved, and both the stability and the safety of a nuclear power data control system are safeguarded.
Description
Technical field:
The utility model relates to a kind of data cable, relates 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.
The utility model content:
The purpose of this utility model provides a kind of double shield flame retardant type nuclear power data cable, and it can have anti-electromagnetic interference performance, satisfies electromagnetic compatibility (EMC) requirement, has fire protecting performance again.
The technical scheme that the utility model is taked 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 utility model, 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 utility model;
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 |
|---|---|---|---|
| CN2010206969656U CN201904113U (en) | 2010-12-29 | 2010-12-29 | Double-shielding flame-retardant type nuclear power data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206969656U CN201904113U (en) | 2010-12-29 | 2010-12-29 | Double-shielding flame-retardant type nuclear power data cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904113U true CN201904113U (en) | 2011-07-20 |
Family
ID=44274706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206969656U Expired - Fee Related CN201904113U (en) | 2010-12-29 | 2010-12-29 | Double-shielding flame-retardant type nuclear power data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074284A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Dual-shielding flame-retardant nuclear power data cable |
| CN103915195A (en) * | 2014-03-18 | 2014-07-09 | 安徽慧艺线缆集团有限公司 | Waterproof dual-shielding computer and meter control cable |
-
2010
- 2010-12-29 CN CN2010206969656U patent/CN201904113U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074284A (en) * | 2010-12-29 | 2011-05-25 | 金坛市金鹿电缆材料有限公司 | Dual-shielding flame-retardant nuclear power data cable |
| CN103915195A (en) * | 2014-03-18 | 2014-07-09 | 安徽慧艺线缆集团有限公司 | Waterproof dual-shielding computer and meter control cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |