CN205943533U - Low -voltage power cable for nuclear power plant - Google Patents
Low -voltage power cable for nuclear power plant Download PDFInfo
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- CN205943533U CN205943533U CN201620977450.0U CN201620977450U CN205943533U CN 205943533 U CN205943533 U CN 205943533U CN 201620977450 U CN201620977450 U CN 201620977450U CN 205943533 U CN205943533 U CN 205943533U
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- inner sheath
- oversheath
- conductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a low -voltage power cable for nuclear power plant, including conductor, insulating layer, inner sheath and oversheath, the insulating layer is the double -deck crowded package structure altogether of irradiation EPT rubber the inner insulating layer and fire -retardant irradiation EPT rubber external insulation layer, conductor and insulating layer constitute insulation core, and a plurality of insulation core strand into the cable core, and cable core gap is equipped with the filling layer, the outer overlapping of cable core have around the covering the crowded package of inner sheath is outside the covering, woven zinc -plated steel wire armoring layer between inner sheath and the oversheath, armor crowded package does not outward have the steamed low fire -retardant resistant radiation radiation cross -linking thermoset polyolefin oversheath of cigarette. The utility model discloses have and does not have steamed, low cigarette, fire -retardant, heat -resisting, ageing resistance, anti radiation characteristic, excellent electric, machinery, environmental protection still have simultaneously, can wide application place power transmission system inside and outside nuclear power station 1E level shell.
Description
Technical field：
This utility model is related to a kind of low-voltage electric power cable used for nuclear, belongs to technical field of electric wires and cables.
Background technology：
, as a kind of emerging energy, coal resources are limited at home for nuclear industry, seriously polluted in the case of, Chinese Nuclear Power
Industry will obtain fast development, and it is more and more extensive, as in nuclear power station that matched cable for nuclear power station is employed
The low-voltage electric power cable used for nuclear of outer transmission power is the power nerve lifeblood of nuclear power system, and Chinese nuclear industry is sent out
Exhibition plays vital effect.
Because cable for nuclear power station has to run 60 years under nuclear radiation environment, this requires the structure of cable, material
Performance and the stability of production technology.Development due to domestic nuclear power cable is started late, the technical merit of each producer
Uneven, add that the requirement to cable for nuclear power station in recent years is brought up to 60 years by 40 years original service lifes, cause perhaps
Many producers due to technical force limited it is impossible to design, produce the cable for nuclear power station product meeting technical requirements.For safety
Cables most in shell adopts imported product, also has partial cables to adopt import, but import cable is expensive outside shell, raw
The product cycle is long, is unfavorable for the development of Chinese Nuclear Power technical industry.
Content of the invention：
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of used in nuclear power station low-voltage power electricity
Cable, has Halogen, low cigarette, fire-retardant, the heat-resisting, characteristic such as aging resistance, radioprotective, also has excellent electric, mechanical, environmental protection simultaneously
Etc. function, can be widely applied to place electrical power transmission system inside and outside nuclear power station 1E level shell, product performance index is excellent.
This utility model solves technical problem and adopts the following technical scheme that：
A kind of low-voltage electric power cable used for nuclear, including conductor, insulating barrier, inner sheath and oversheath, described insulating barrier is
Irradiation ethylene propylene diene rubber inner insulating layer and fire-retardant irradiation ethylene propylene diene rubber external insulation layer double-layer coextrusion extrude structure, described lead
Body and insulating barrier constitute insulated wire cores, and some insulated wire cores are twisted into cable core, and cable core gap is provided with packed layer, outside described cable core
Overlap is surrounded with lapping layer, described inner sheath is extruded in outside lapping layer, is woven with galvanized steel between described inner sheath and oversheath
Silk armor, extrudes LSOH anti-flaming radiation hardness cross-linking radiation thermosetting polyolefin oversheath outside armor.
Described conductor selects stranded conductor structure, and conductor material is tin-coated copper.
Described packed layer is thermosetting LSOH anti-flaming rubber filling bar；Cordage is torn for tension, outward in the middle of packing
Layer cladding LSOH anti-flaming rubber, consists of packing after continuous vulcanization.
Described lapping layer is halogen-free and low-smoke flame-retardant polyolefin band.
Described inner sheath is thermosetting LSOH anti-flaming elastomeric material.
Described armor count is not less than 80%.
Compared with the prior art, the beneficial effects of the utility model are embodied in：
1st, adopt stranded tinned copper conductor structure, substantially increase softness and the corrosion resistance of cable, really simultaneously
Protect cable and keep excellent electric property in running.
2nd, irradiation EPDM interior insulation and fire retardant trielement ethylene-propylene external insulation are adopted after electron beam irradiation, mechanical performance
Greatly improve it is ensured that cable has excellent electric property, mechanical performance and fire resistance, external insulation bilayer expressing technique was both
The insulating properties of cable can be met, and meet the flame-retarding characteristic of cable simultaneously.
3rd, armor selects zinc-coated wire braiding structure, and count is not less than 80%, not only plays the effect of shielding, and
And substantially increase bending property and the tensile strength of cable, it is effectively protected the damage of inner sheath simultaneously, improve cable
Service life.
4th, oversheath is using extruding LSOH anti-flaming radiation hardness cross-linking radiation thermosetting polyolefin jacket material, its material
Novel environment friendly, and there is excellent Halogen, low cigarette, flame-retarding characteristic and radiation resistance, fully meet making of cable for nuclear power station
With requiring.
Brief description：
Fig. 1 is structural representation of the present utility model.
Wherein, 1- conductor, 2- inner insulating layer, 3- external insulation layer, 4- packed layer, 5- lapping layer, 6- inner sheath, 7- armouring
Layer, 8- oversheath.
Specific embodiment：
Below by way of specific embodiment, and the utility model is described in further detail to combine accompanying drawing.
As Fig. 1, a kind of low-voltage electric power cable used for nuclear, including the conductor 1 of high electrical performance tinned copper wire process, absolutely
Edge layer, thermosetting LSOH anti-flaming rubber inner sheath 6 and oversheath 8, described insulating barrier is exhausted in irradiation ethylene propylene diene rubber
Edge layer and fire-retardant irradiation ethylene propylene diene rubber external insulation layer double-layer coextrusion extrude structure, and described conductor 1 and insulating barrier constitute insulation
Core, some insulated wire cores are twisted into cable core, and cable core gap is provided with thermosetting LSOH anti-flaming rubber filling layer 4, filling
Rounding；Described cable core and the outer overlap successively of packed layer 4 are surrounded with halogen-free and low-smoke flame-retardant polyolefin band lapping layer 5, described inner sheath 6
It is extruded in outside lapping layer 5, between inner sheath 6 and oversheath 8, is woven with zinc-coated wire armor 7, its count is not less than
80%；LSOH anti-flaming radiation hardness cross-linking radiation thermosetting polyolefin oversheath 8 is extruded outside armor 7.
In being embodied as, corresponding structure setting and material select to be respectively：
Conductor 1 is to be formed using high electrical performance tinned copper wire process, conductor layer any surface finish, impulse- free robustness, non-oxidation, Wuxi
Layer is scraped to injure and is come off；
Inner insulating layer 2 is to be extruded in, by irradiation ethylene propylene diene rubber, the inner insulating layer being formed on conductor, and and external insulation layer
Extrude together, using Electron-beam irradiation technology；
External insulation layer 3 is to be extruded in, by fire-retardant irradiation ethylene propylene diene rubber, the external insulation layer being formed on inner insulating layer, and with
Inner insulating layer is extruded together, using Electron-beam irradiation technology；
Packed layer 4 adopts thermosetting LSOH anti-flaming rubber filling bar, tears cordage, low smoke, zero halogen for tension in the middle of it
Flame retardant rubber is extruded in outside it, constitutes packing after continuous vulcanization, fills rounding；
Lapping layer 5 adopts halogen-free and low-smoke flame-retardant polyolefin band twining package tape overlap wrapped outside cable core；
Inner sheath 6 adopts thermosetting LSOH anti-flaming rubber inner sheath, using Electron-beam irradiation technology；
Armor 7 adopts zinc-coated wire braiding structure, and count is not less than 80%；
Oversheath 8 using extruding thermosetting LSOH anti-flaming radiation resistance polyolefine, using Electron-beam irradiation technology.
The cable of this kind of structure design has Halogen, low cigarette, fire-retardant, the heat-resisting, characteristic such as aging resistance, radioprotective, also simultaneously
There is the functions such as excellent electric, mechanical, environmental protection, can be widely applied to place power transmission system inside and outside nuclear power station 1E level shell
System.
Claims (6)
1. a kind of low-voltage electric power cable used for nuclear, including conductor (1), insulating barrier, inner sheath (6) and oversheath (8), its feature
It is：Described insulating barrier is irradiation ethylene propylene diene rubber inner insulating layer (2) and fire-retardant irradiation ethylene propylene diene rubber external insulation layer (3)
Double-layer coextrusion extrudes structure, and described conductor (1) and insulating barrier constitute insulated wire cores, and some insulated wire cores are twisted into cable core, cable
Core gap is provided with packed layer (4), and cable core is outer, and overlap is surrounded with lapping layer (5), described inner sheath (6) is extruded in lapping layer (5) outward,
It is woven with zinc-coated wire armor (7) between described inner sheath (6) and oversheath (8), outside armor (7), be extruded with low smoke, zero halogen
Fire-retardant radiation hardness cross-linking radiation thermosetting polyolefin oversheath (8).
2. a kind of low-voltage electric power cable used for nuclear according to claim 1 it is characterised in that：Described conductor (1) is selected
Stranded conductor structure, conductor material is tin-coated copper.
3. a kind of low-voltage electric power cable used for nuclear according to claim 1 it is characterised in that：Described packed layer (4) is
Thermosetting LSOH anti-flaming rubber filling bar.
4. a kind of low-voltage electric power cable used for nuclear according to claim 1 it is characterised in that：Described lapping layer (5) is
Halogen-free and low-smoke flame-retardant polyolefin band.
5. a kind of low-voltage electric power cable used for nuclear according to claim 1 it is characterised in that：Described inner sheath (6) is
Thermosetting LSOH anti-flaming elastomeric material.
6. a kind of low-voltage electric power cable used for nuclear according to claim 1 it is characterised in that：Described armor (7) is compiled
Knit density and be not less than 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977450.0U CN205943533U (en) | 2016-08-30 | 2016-08-30 | Low -voltage power cable for nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977450.0U CN205943533U (en) | 2016-08-30 | 2016-08-30 | Low -voltage power cable for nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943533U true CN205943533U (en) | 2017-02-08 |
Family
ID=57954555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620977450.0U Expired - Fee Related CN205943533U (en) | 2016-08-30 | 2016-08-30 | Low -voltage power cable for nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221376A (en) * | 2017-06-23 | 2017-09-29 | 安徽华通电缆集团有限公司 | A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting |
| CN108899121A (en) * | 2018-08-14 | 2018-11-27 | 安徽渡江电缆集团有限公司 | A kind of environment resistant aging polyolefin photovoltaic cable |
-
2016
- 2016-08-30 CN CN201620977450.0U patent/CN205943533U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221376A (en) * | 2017-06-23 | 2017-09-29 | 安徽华通电缆集团有限公司 | A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting |
| CN108899121A (en) * | 2018-08-14 | 2018-11-27 | 安徽渡江电缆集团有限公司 | A kind of environment resistant aging polyolefin photovoltaic 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: 20170208 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |