CN204066815U - A kind of instrument cable of resistance to nuclear radiation - Google Patents
A kind of instrument cable of resistance to nuclear radiation Download PDFInfo
- Publication number
- CN204066815U CN204066815U CN201420546865.3U CN201420546865U CN204066815U CN 204066815 U CN204066815 U CN 204066815U CN 201420546865 U CN201420546865 U CN 201420546865U CN 204066815 U CN204066815 U CN 204066815U
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- CN
- China
- Prior art keywords
- core
- resistance
- cable
- lapping layer
- twisted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model relates to a kind of instrument cable of resistance to nuclear environment.Technical solutions of the utility model: a kind of instrument cable of resistance to nuclear radiation, core (3) in the middle of it, any wire core (3) is made up of the conductor (1) of tape insulation layer, at least two cores (3) and filling A(4) be twisted into heart yearn (5), at least two heart yearns (5) and filling B(6) be twisted into cable core (7), described cable core (7) establishes 1# lapping layer (8) outward successively, compound copper-plastics band (9), tincopper fuse wire braided armor (10), 2# lapping layer (13) and oversheath (14), a metal drainage thread (12) is provided with between 1# lapping layer (8) and compound copper-plastics band (9).Adopt after technique scheme, insulation effect and shield effectiveness good.
Description
Technical field
The utility model relates to a kind of instrument cable, particularly a kind of used in nuclear power station instrument cable of resistance to nuclear environment, rated voltage 300/500V and following, and it is applicable to three generations's nuclear power stations such as AP1000 or other nuclear radiation environment cable.
Background technology
AP1000 is international state-of-the-art Generation Ⅲ.AP1000 is single heap layout two loop unit, and 60 years designed lives, main security system adopts non-active design, and be arranged in containment, containment is double-decker, and skin is prestressed concrete, and internal layer is steel plate structure.
For AP1000 technology, its supporting low-voltage cable requires to possess useful life of more than 60 years, and low cigarette, Halogen, fire-retardant, resistance to long term heat ageing, resistance to nuclear radiation, invading for a long time of resistance to DBA (that is: design basis accident) and DBA do not have and high insulating property.
The applicant once proposed a kind of instrument cable for nuclear power station, its Chinese publication number: CN202183241U, and it, by increasing the mode of particular mask layer between lapping layer and sheath, improves the shield effectiveness of whole cable.
Summary of the invention
The purpose of this utility model is to provide a kind of instrument cable of resistance to nuclear radiation, and its rated voltage is 300/500V and following, and its requirement improves insulation effect and shield effectiveness further on existing basis.
For realizing above-mentioned technical purpose, the utility model is by the following technical solutions: a kind of instrument cable of resistance to nuclear radiation, core in the middle of it, any wire core is made up of the conductor of tape insulation layer, at least two cores and filling A are twisted into heart yearn, at least two heart yearns and filling B are twisted into cable core, wherein: described cable core establishes 1# lapping layer, compound copper-plastics band, tincopper fuse wire braided armor, 2# lapping layer and oversheath outward successively, be provided with a metal drainage thread between 1# lapping layer and compound copper-plastics band, described insulating barrier is the insulating barrier that cross-linked polyolefin is formed.The preferred bare copper wire of metal drainage thread wherein.The preferred 2-4 root of master core quantity wherein.
After adopting technique scheme, the utility model has following beneficial effect: core is twisted into heart yearn, and heart yearn is twisted into cable core again, and cable core structure is stablized; Compound copper-plastics band, tincopper fuse wire braided armor form composite shielding layer, improve the shield effectiveness of whole cable; The setting of metal drainage thread, effectively gets rid of the electrostatic produced in composite shielding layer, improves the shield effectiveness of whole cable; The insulating barrier that cross-linked polyolefin is formed, improves insulation property; 1# lapping layer and 2# lapping layer are distinguished wrapped, ensure cable core rounding property on the one hand, avoid sheath material to infiltrate composite shielding layer when extruding on the other hand.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, conductor, 2, insulating barrier, 3, core, 4, fill A, 5, heart yearn, 6, B is filled, 7, cable core, 8,1# lapping layer, 9, compound copper-plastics band, 10, tincopper fuse wire braided armor, 11, composite shielding layer, 12, metal drainage thread, 13,2# lapping layer, 14, oversheath.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Embodiment
As shown in Figure 1, a kind of instrument cable of resistance to nuclear radiation, it comprises at least four cores 3, and the number of core is even number, and every root core 3 is made up of conductor 1 and insulating barrier 2, and insulating barrier 2 extrudes conductor 1; At least two cores 3 and filling A4 are twisted into heart yearn 5, and at least two heart yearns 5 and filling B6 are twisted into cable core 7; Cable core 7 is outer establishes 1# lapping layer 8, compound copper-plastics band 9, tincopper fuse wire braided armor 10,2# lapping layer 13 and oversheath 14 successively; A metal drainage thread 12 is provided with between 1# lapping layer 8 and compound copper-plastics band 9; Insulating barrier 2 is insulating barriers that cross-linked polyolefin is formed.Metal drainage thread 12 is wherein bare copper wire preferably.Core 3 quantity wherein preferably 4.For four master cores, as shown in Figure 1, two cores 3 and filling A4 are twisted into heart yearn 5, two heart yearns 5 formed and filling B6 are twisted into cable core 7, are surrounded with the outer wrapped compound copper-plastics band 9 of 1# lapping layer 8,1# lapping layer 8 outside cable core 7, a metal drainage thread 12 is had between 1# lapping layer 8 and compound copper-plastics band 9, its specific practice: when the wrapped 1# lapping layer 8 of compound copper-plastics band 9, apply a metal drainage thread 12, this metal drainage thread 12 is bare copper wire preferably; Tincopper fuse wire braided armor 10 is woven in outside compound copper-plastics band 9, and so, compound copper-plastics band 9 and tincopper fuse wire braided armor 10 form composite shielding layer 11; Oversheath 14 is extruded outside outer wrapped 2# lapping layer 13, the 2# lapping layer 13 of composite shielding layer 11.
Above-mentioned conductor 1 usually adopts that tinned copper wire is stranded to be formed.Core like this is more soft.
Above-mentioned filling A and filling B adopts thermoset rubber bar usually.So, make cable core rounding property good.
Above-mentioned 1# lapping layer 8 and 2# lapping layer 13 adopt polyester fiber band usually, ensure cable core rounding property on the one hand, avoid sheath material to infiltrate composite shielding layer when extruding on the other hand.
Above-mentioned oversheath adopts the thermoset rubber sheath of vapor crosslinking usually.
The utility model is not limited to above-described embodiment, and the technical scheme that all employings are equal to or equivalence replacement is formed all falls into the protection range that the utility model requires.
Claims (3)
1. the instrument cable of resistance to nuclear radiation, core (3) in the middle of it, any wire core (3) is made up of the conductor (1) of tape insulation layer, at least two cores (3) and filling A (4) are twisted into heart yearn (5), at least two heart yearns (5) and filling B (6) are twisted into cable core (7), it is characterized in that: described cable core (7) establishes 1# lapping layer (8) outward successively, compound copper-plastics band (9), tincopper fuse wire braided armor (10), 2# lapping layer (13) and oversheath (14), a metal drainage thread (12) is provided with between 1# lapping layer (8) and compound copper-plastics band (9), described insulating barrier (2) is the insulating barrier that cross-linked polyolefin is formed.
2. the one instrument cable of resistance to nuclear radiation according to claim 1, is characterized in that: described metal drainage thread (11) is bare copper wire.
3. the one instrument cable of resistance to nuclear radiation according to claim 1, is characterized in that: the quantity of described core (3) is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546865.3U CN204066815U (en) | 2014-09-22 | 2014-09-22 | A kind of instrument cable of resistance to nuclear radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546865.3U CN204066815U (en) | 2014-09-22 | 2014-09-22 | A kind of instrument cable of resistance to nuclear radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066815U true CN204066815U (en) | 2014-12-31 |
Family
ID=52208275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420546865.3U Expired - Lifetime CN204066815U (en) | 2014-09-22 | 2014-09-22 | A kind of instrument cable of resistance to nuclear radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298054A (en) * | 2016-11-08 | 2017-01-04 | 四川明星电缆股份有限公司 | A kind of generation Ⅲ nuclear power station communication cable and design and production method |
-
2014
- 2014-09-22 CN CN201420546865.3U patent/CN204066815U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298054A (en) * | 2016-11-08 | 2017-01-04 | 四川明星电缆股份有限公司 | A kind of generation Ⅲ nuclear power station communication cable and design and production method |
| CN106298054B (en) * | 2016-11-08 | 2019-01-11 | 尚纬股份有限公司 | A kind of generation Ⅲ nuclear power station communication cable and design and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |