CN100490022C - Metal armoured rigid coaxial cable - Google Patents
Metal armoured rigid coaxial cable Download PDFInfo
- Publication number
- CN100490022C CN100490022C CNB2006101529624A CN200610152962A CN100490022C CN 100490022 C CN100490022 C CN 100490022C CN B2006101529624 A CNB2006101529624 A CN B2006101529624A CN 200610152962 A CN200610152962 A CN 200610152962A CN 100490022 C CN100490022 C CN 100490022C
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- Prior art keywords
- coaxial cable
- medium layer
- insulating medium
- engineering plastics
- cable
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- 239000002184 metal Substances 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 10
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 10
- 239000004695 Polyether sulfone Substances 0.000 claims abstract description 8
- 239000004642 Polyimide Substances 0.000 claims abstract description 8
- 229920006393 polyether sulfone Polymers 0.000 claims abstract description 8
- 229920001721 polyimide Polymers 0.000 claims abstract description 8
- 229920002492 poly(sulfone) Polymers 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to a cable. In particular to a metal armored rigid coaxial cable. The cable comprises an inner conductor, an insulating medium layer, an outer conductor and an outer sheath. The method is characterized in that: the inner conductor is an oxygen-free copper wire, the insulating medium layer is formed by connecting a plurality of groups of stepped columnar insulating blocks which are made of polysulfone, polyether sulfone, polyimide and polyether ether ketone engineering plastics and are matched with one another in a concave-convex mode from head to tail in series, the outer conductor is an oxygen-free copper pipe, and the outer sheath is the engineering plastics. It has reliable transmission performance, high mechanical strength, high radiation resistance, high ageing resistance, high fire resistance and high air tightness. The coaxial cable is specially used for electrical penetration pieces of containment vessels of various nuclear power stations or research reactors and is connected with the coaxial cables inside and outside the containment vessels.
Description
Technical field
The invention belongs to a kind of cable, be specifically related to a kind of coaxial cable.
Background technology
Coaxial cable is general main to be made up of inner wire, insulating barrier, outer conductor and oversheath.At present common coaxial cable is many to be insulating material with the polyethylene, according to the difference of insulation layer structure, solid polyethylene-insulated coaxial cable, chemical blowing polyethylene-insulated coaxial cable, vertical cellular type polyethylene-insulated coaxial cable and physically foamed pe insulation coaxial cable have successively been experienced in the development of coaxial cable.Owing to advantages such as physical blowing polyethylene coaxial cable has environmentally safe, foam degrees height, flexibility is good, attenuation constant is little and transmission performance is stable obtain extensive use, as Chinese patent CN1545102A disclosed a kind of " coaxial cable ", this coaxial cable has waterproof, transmission performance is stable, advantages such as the life-span is long, but the insulating barrier of this cable has certain foam degrees, low, the not anti-irradiation of temperature index, flammable, can not under nuclear environment, use.
For the private cable that is used for coaxial cable inside and outside the coupled reaction heap containment, it is installed on the containment vessel electrical penetration, should satisfy the related electric performance requirement, also must guarantee reliable sealing performance, even under various accident conditionses (comprising dehydration, earthquake etc.), still can keep the integrality and the electrical continuity of containment pressure boundary.At present, in some reactors, adopt the on-the-spot coaxial cable of laying directly to run through the containment vessel barrier shield, running through of this pattern, cable and the sealing that runs through between sleeve realize easily, but be to avoid by the leakage of coaxial cable itself, becomes the main thoroughfare of leakage.Therefore when this dedicated coaxial cable of design, need take into account electrical property (high transmission stability), mechanical performance (intensity height, physical dimension are stablized) and the environmental suitability (the anti-irradiation of material, reliable sealing performance) of this dedicated coaxial cable.
Summary of the invention
The purpose of this invention is to provide that a kind of transmission performance is reliable, mechanical strength is high, anti-irradiation, ageing-resistant, fire-resistant, metal armouring rigid coaxial cable that air-tightness is good.
The present invention is achieved in that a kind of metal armouring rigid coaxial cable, comprise inner wire, insulating medium layer, outer conductor and oversheath from inside to outside successively, wherein, said inner wire is the anaerobic copper cash, insulating medium layer is to be in series by the many groups of concavo-convex step column collets made from polysulfones, polyether sulfone, polyimides or polyether-ether-ketone engineering plastics that match of head and the tail, outer conductor is an oxygen-free copper pipe, and oversheath also is polysulfones, polyether sulfone, polyimides or polyether-ether-ketone engineering plastics.
Remarkable result of the present invention is:
(1) in metal armouring rigid coaxial cable provided by the present invention, adopt polysulfones, polyether sulfone, polyimides or polyether-ether-ketone as insulating medium layer, these engineering plastics are with respect to the Other Engineering plastics, have mechanical performances such as tensile strength, composite bending modulus, anti-creep and endurance preferably, have very high fusing point and vitrification point and excellent thermal endurance, good electric insulating quality, temperature index height, fire-retardant and anti-irradiation simultaneously.Very strong as the polyether-ether-ketone irradiation ability of anti-γ, when irradiation dose reaches 1100Mrad, still can keep the good insulation performance performance; Temperature index reaches 250 ℃, in 200 ℃ hot water, can use continuously; Good flame resistance simultaneously is respectively the insulating barrier of 0.3mm, 1.5mm and 3.2mm to sample thickness, does not add any fire retardant rank and just can reach UL94V-1, UL94V-0, UL94-5V respectively.
(2) adopt anaerobic copper cash inner wire overcoat to organize the collets of series connection more, put the oxygen-free copper metal tube again, can be after the assembling through draw technology, with eliminate between the insulating medium layer, gap between insulating medium layer and the inner and outer conductor, cut off the leakage path in the coaxial cable, made coaxial cable possess air-tightness.Behind draw technology elimination gap, all have certain elastic deformation between each parts, in long-term use, the resilience force of these strains can be kept the sealing force to leakage path, guarantees the reliability of the stable and sealing of structure.And the axial symmetrical structure of coaxial cable parts and draw technology have guaranteed the physical dimension consistency of coaxial cable.The consistency of this physical dimension also guarantees the stable of its transmission characteristic.
(3) inner and outer conductor all adopts oxygen-free copper, the purity height, and conduction, good heat conductivity, anti-corrosion, through-put power is big, and it is little to decay.
Metal armouring rigid coaxial cable transmission performance provided by the present invention in sum is reliable, mechanical strength is high, and anti-irradiation is ageing-resistant, fire-resistant, and air-tightness is good.
Description of drawings
Fig. 1 is a metal armouring rigid coaxial cable cross sectional representation provided by the present invention;
Fig. 2 is a metal armouring rigid coaxial cable longitudinal sectional view provided by the present invention;
Among the figure, 1 inner wire, 2 insulating medium layers, 3 outer conductors, 4 oversheaths.
Embodiment
As shown in Figure 1 and Figure 2, a kind of metal armouring rigid coaxial cable, comprise inner wire 1, insulating medium layer 2, outer conductor 3 and oversheath 4 from inside to outside successively, wherein, said inner wire 1 is the anaerobic copper cash, insulating medium layer 2 is to be in series by the many groups of concavo-convex step column collets made from polysulfones, polyether sulfone, polyimides or polyether-ether-ketone engineering plastics that match of head and the tail, and outer conductor 3 is an oxygen-free copper pipe, and oversheath 4 also is above-mentioned engineering plastics.
Example 1: with the theoretical characteristics impedance is that 50 Ω are example:
Insulating medium layer is selected polyether-ether-ketone for use, and the inner wire wire gauge is AWG16, and nominal diameter is Φ 1.29mm, and the outer conductor internal diameter is Φ 5.73mm, wall thickness 1mm, and the material selection polyether-ether-ketone of oversheath, thickness are 0.2mm.After testing, its characteristic impedance is 50 ± 2 Ω.
Example 2: with the theoretical characteristics impedance is that 75 Ω are example:
Insulating medium layer is selected polyether sulfone for use, and the inner wire wire gauge is AWG16, and nominal diameter is Φ 1.29mm, and the outer conductor internal diameter is Φ 12.49mm, wall thickness 1.5mm, and oversheath is selected polyimides for use, and thickness is 0.2mm.After testing, its characteristic impedance is 75 ± 3 Ω.
The present invention is specifically designed on various nuclear power stations or the research containment vessel electrical penetration, the coaxial cable that the attachment security shell is inside and outside.
Claims (1)
1. metal armouring rigid coaxial cable, comprise inner wire (1), insulating medium layer (2), outer conductor (3) and oversheath (4) from inside to outside successively, it is characterized in that: said inner wire (1) is the anaerobic copper cash, insulating medium layer (2) is to be in series by the many groups of concavo-convex step column collets made from polysulfones, polyether sulfone, polyimides or polyether-ether-ketone engineering plastics that match of head and the tail, outer conductor (3) is an oxygen-free copper pipe, and oversheath (4) also is polysulfones, polyether sulfone, polyimides or polyether-ether-ketone engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101529624A CN100490022C (en) | 2006-09-21 | 2006-09-21 | Metal armoured rigid coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101529624A CN100490022C (en) | 2006-09-21 | 2006-09-21 | Metal armoured rigid coaxial cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101150001A CN101150001A (en) | 2008-03-26 |
| CN100490022C true CN100490022C (en) | 2009-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101529624A Active CN100490022C (en) | 2006-09-21 | 2006-09-21 | Metal armoured rigid coaxial cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN100490022C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930816B (en) * | 2009-06-18 | 2013-06-19 | 卢小青 | Manufacturing process of coaxial cable |
| CN104575726A (en) * | 2013-10-18 | 2015-04-29 | 宁夏海洋线缆有限公司 | Conductor stranded flexible cable |
| CN103854803B (en) * | 2014-03-10 | 2015-12-02 | 四川九洲线缆有限责任公司 | A kind of preparation method of high Anti-interference cable |
| CN103871642A (en) * | 2014-03-13 | 2014-06-18 | 苏州科茂电子材料科技有限公司 | High-performance ultra-fine coaxial cable |
| CN104808083B (en) * | 2015-04-03 | 2017-11-03 | 中广核核电运营有限公司 | Used in nuclear power station electromagnetism interference test system |
| CN105390195A (en) * | 2015-12-08 | 2016-03-09 | 无锡江南电缆有限公司 | Self-bearing compression-resistant type coaxial cable |
| CN109215860A (en) * | 2018-09-17 | 2019-01-15 | 四川力卓汇恒科技服务有限公司 | A kind of anti-aging type cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499537A (en) * | 2002-11-05 | 2004-05-26 | 新疆特变电工股份有限公司 | High temperature and vapor resistant insulated wire as well as manufacturing method |
| CN2708455Y (en) * | 2004-06-04 | 2005-07-06 | 扬州华城电缆有限公司 | Non-halogen, low-smoke, low toxicity, and strong interference resistant measurement and control cable |
-
2006
- 2006-09-21 CN CNB2006101529624A patent/CN100490022C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1499537A (en) * | 2002-11-05 | 2004-05-26 | 新疆特变电工股份有限公司 | High temperature and vapor resistant insulated wire as well as manufacturing method |
| CN2708455Y (en) * | 2004-06-04 | 2005-07-06 | 扬州华城电缆有限公司 | Non-halogen, low-smoke, low toxicity, and strong interference resistant measurement and control cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101150001A (en) | 2008-03-26 |
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