CN202003728U - Intrinsic safe computer cable for oil platform - Google Patents
Intrinsic safe computer cable for oil platform Download PDFInfo
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- CN202003728U CN202003728U CN2011201226596U CN201120122659U CN202003728U CN 202003728 U CN202003728 U CN 202003728U CN 2011201226596 U CN2011201226596 U CN 2011201226596U CN 201120122659 U CN201120122659 U CN 201120122659U CN 202003728 U CN202003728 U CN 202003728U
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- 239000004020 conductor Substances 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 15
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 7
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 7
- 229920006267 polyester film Polymers 0.000 claims description 7
- 238000009954 braiding Methods 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 5
- 239000005030 aluminium foil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 241001589086 Bellapiscis medius Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- -1 cold-resistant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
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- Insulated Conductors (AREA)
Abstract
本实用新型公开了一种石油平台用本安计算机电缆，包括数个导体组、绝缘层，导体组分别由两根包裹绝缘层的导体绞合构成，绝缘层厚度为0.6mm-0.7mm，导体组外侧包裹有内包带层，内包带层与绝缘层之间设有色带，内包带层外依次包裹有分屏蔽层、中包带层，包裹中包带层后的数个导体组外侧依次包裹有外包带层、总屏蔽层，分屏蔽层、总屏蔽层分别设有内放置一根多股镀锡铜丝绞合的引流线，总屏蔽层外依次包裹有内衬层、铠装层、外护套层。本实用新型屏蔽性能好，优良的抗外电磁场干扰及不产生对外的干扰，具有降低工作电容，提高绝缘电阻、耐电压特性；阻燃性能优良；具有低电容和低电感；且具备耐磨、抗撕、耐油、耐臭氧、耐油泥性能。
The utility model discloses an intrinsically safe computer cable for an oil platform, which comprises several conductor groups and insulation layers. The outside of the group is wrapped with an inner tape layer, and there is a ribbon between the inner tape layer and the insulating layer. The inner tape layer is wrapped with a sub-shielding layer and a middle tape layer in turn, and several conductor groups after the middle tape layer are wrapped in turn. There is an outer wrapping layer and a general shielding layer. The sub-shielding layer and the general shielding layer are respectively equipped with a drainage wire with multiple strands of tinned copper wire twisted inside. Outer sheath. The utility model has good shielding performance, excellent resistance to external electromagnetic field interference and no external interference, has the characteristics of reducing working capacitance, improving insulation resistance and withstand voltage; excellent flame retardant performance; has low capacitance and low inductance; and has wear resistance, Tear resistance, oil resistance, ozone resistance, sludge resistance.
Description
Technical field:
The utility model relates to the instrument cable field, relates in particular to a kind of used for oil platform intrinsic safety computer cable.
Background technology:
The development of China's oil platform cable is started in the eighties in last century.Under the springing up of exploitation China offshore petroleum resources upsurge, Zhang Zhiqing at that time, Shengyang Electrical Cable Factory, red flag cable factory etc. possess the factory of shipboard cable manufacturing capacity, all once develop the offshore oil platform cable.But the macrotype platform in China's marine site probing and oil recovery all was foreign platform basically at that time, and small-sized platform is homemade.Even homemade platform also proposes to use the platform cable of foreign country, and homemade platform cable is almost completely kept outside of the door.
Because it is very high that the every technical performance of oil platform cable requires, domestic development is started late.For realizing the production domesticization of oil drilling facility-specific cable, domestic have cable factory to succeed in developing 2000V and following offshore oil and warship ship power cable with reference to GJB1916-94 " naval vessel with low smoke cables and flexible cord general specification ", the standard IEEE 45-1998 of AAEE " the boats and ships electrical installation rules that IEEE recommends " and the requirement of the U.S. DAA-1048B of SURPENANT company technical specification, realized that tentatively oil platform and naval vessel cable domesticize.
At present, in " electric wire production development project study ", mention in country's the ninth five-year plan and 2010 imagination: from current demand of user and development from now on, key is to go up level (quality level and technical merit), the kind of development derivation, extension type, combined, compact, and the kind of studying some high-tech performances, for example low smoke, zero halogen low toxicity type Plastic-sheathed Cable and plastic cable, medium pressure grade shipboard cable.
The utility model content:
The purpose of this utility model provides a kind of used for oil platform intrinsic safety computer cable, solved the cable shield effect relatively poor, because electric spark and thermal effect cause the problem of explosion hazard gases blast and cable selfcapacity and distributed inductance, this cable has also solved oil resistant, anti-mud problem.
Technical scheme of the present utility model is as follows:
Used for oil platform intrinsic safety computer cable, comprise several conductor groups, insulating barrier, it is characterized in that: described several conductor groups constitute by the conductor of two wrap insulate layers is stranded respectively, described thickness of insulating layer is 0.6mm-0.7mm, described several conductor group outsides are enclosed with interior belting layer respectively, be provided with colour band between belting layer and the insulating barrier in described, belting layer is enclosed with sub-shield outward successively in described, middle belting layer, belting layer employing thickness is the wrapped formation of polyester film of 0.03mm in described, the wrapped rate of putting up is 25%-30%, several conductor group outsides in the parcel behind the belting layer are enclosed with outer belting layer successively, total screen, described sub-shield, total screen adopts the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.05mm, aluminium-plastic tape is by being base material with the plastic film, single or double applies aluminium powder and makes, and aluminium is towards interior during coating; Described sub-shield, total screen are placed the drainage thread that the multiply tinned copper wire is stranded in being respectively equipped with, and the drainage thread cross section is not less than 0.2mm
2, described total screen is enclosed with inner covering, armour, external sheath layer outward successively.
Described used for oil platform intrinsic safety computer cable is characterized in that: described conductor adopts the stranded bunchy of several tinned copper wires to constitute, and described cross-sectional area of conductor is long-pending to be 0.75-2.5 mm
2
Described used for oil platform intrinsic safety computer cable is characterized in that: described insulating barrier roundness is less than 1.25 times, and material adopts crosslinked polyethylene.
Described used for oil platform intrinsic safety computer cable is characterized in that: described external sheath layer material adopts fire-retardant Halogen oil resistant mud polyolefin.
Described used for oil platform intrinsic safety computer cable is characterized in that: described armour adopts the tinned copper wire braiding to constitute, and count is not less than 90%.
The selected material of the utility model is:
(1) conductor.Used for oil platform intrinsic safety computer cable is the current signal of the control of transmission weak electricity system, simulation.Cross-sectional area of conductor is general identical with the plain edition control cable, the cross-sectional area of conductor of using always be 0.75,1.0,1.5,2.5mm
2According to different service condition requirements, conductor structure can be selected l, 2 kinds or the 5th kind of tin-coated copper conductor of conformance with standard GB ∕ T 3956 regulations for use.
(2) insulation.The insulating material that used for oil platform intrinsic safety computer cable adopts is crosslinked polyethylene (XLPE).The working temperature of crosslinked polyethylene is 90 ℃, and dielectric loss and dielectric constant are little, and the electric property excellence, and all there is superiority aspects such as mechanical performance, thermal endurance class and antiseptic power.This technology point: insulation thickness is between 0.6 ~ 0.7mm, and roundness is controlled within 1.25 times, and to guarantee the optimization of insulated wire cores performance, degree of cross linking control should be suitable.
(3) twisted pair wire is right.Because the signal of used for oil platform intrinsic safety computer cable transmission is identical with instrument cable, all are light current high-frequency signals, so the insulated wire cores structure of used for oil platform intrinsic safety computer cable all adopts the pair twist identical with symmetrical instrument cable (or symmetry) structure, promptly the insulated wire cores by a pair of different colour codes forms by pair twister is stranded.Because twisted pair wire has the coordinated transposition effect to the loop of forming, can make in the loop disturbance current cancel out each other or reduce, but intersect pitch certain cooperation to be arranged, pitch is smaller when intersecting, and then intersects better effects if.Therefore, in the pair twist process, strict control pair twist pitch, and the right pitch that will guarantee adjacent lines has nothing in common with each other and do not have the even bit relation, in case the phase mutual interference of non-return road.Twisted pair wire is discerned common employing numeral or colour band sign, tightens at its surperficial wrapped non-hygroscopic band then.
(4) divide shielding.Divide shielding to adopt the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.05mm.To shielding, the stranded back of each twisted pair wire group adopts aluminium-plastic tape wrapped for the line between the unit group (line to), and the wrapped rate of putting up is 25% ~ 45%; For the electrical continuity that guarantees to shield, and convenient installation ground connection, place one in the screen by the stranded drainage thread of multiply tinned copper wire, the drainage thread cross section is not less than 0.2mm
2, and contact with the aluminium lamination of aluminium-plastic tape, need satisfy the regulation of IEC60092-376 as the resistance of the tinned wird of ground connection drainage thread.At the wrapped again polyester film in composite band outside, electric the completely cutting off between guaranteeing to shield.The thickness of the polyester film that shielding is outer is 0.03 ㎜, and the wherein wrapped rate of putting up is 25% ~ 30%;
(5) cable element.Cable element (cable core) is formed by each minute shielding twisted pair wire strand.The twisted pair wire logarithm can be 1～61, and the preferential line of recommending is identical with the plain edition control cable to number.The cable core gap adopts halogen-free flameproof glass cordage material to fill, so that the outward appearance rounding.Band adopts fire-retardant band wrapped, and outer wrapped one or more layers band of cable core is tightened, and prevents that cable core is loose in the laid processes.
(6) total shielding.Wrapped aluminium foil polyester composite band always shields outside cable core, shielding adopts the aluminium-plastic tape that is not less than 0.05mm overlapping wrapped, a stranded ground connection drainage thread that forms of tinned copper wire need be arranged in the shielding, drainage thread contacts with the aluminium lamination of aluminium foil polyester composite band, and the resistance that is used as the tinned wird of ground connection drainage thread need satisfy the regulation of IEC60092-376.The wrapped rate of putting up of aluminium foil polyester composite band is controlled at 20% ~ 45%; And then wrapped again polyester film outside the wrapped shielding of aluminium foil polyester composite band, the rate of putting up is 25% ~ 30%.Polyester film thickness is 0.03 ㎜;
(7) inner covering.Extrude high flame retardant halogen-free polyolefin material, surperficial shall be rounded up is smooth.
(8) braiding armouring.Armouring adopts the tinned copper wire braiding, and it has the double action of mechanical protection and shielding concurrently, and count is according to IEC 60092-350 standard code, and count is not less than 90%.
(9) oversheath.The cable combination property be implemented in the sheath that depends on cable to a great extent.Consider that deisgn product needs fire-retardant, cold-resistant, oil resistant, anti-mud,, finally select the sheath material of the polyolefin of modification as cable through test of many times comparatively validate repeatedly.Low temperature resistant reaching-40 ℃ behind this material modification, and possess performances such as wear-resisting, anti-tear, oil resistant, anti-ozone, oil resistant mud, high flame retardant, can satisfy the requirements of the many corrosion of offshore engineering equipment environment.According to the requirement of intrinsic safety system, the color of sheath is blue, so that distinguish with cable with the non-intrinsically safe safety system.
The utility model has the advantages that:
The utility model crosslinked polyethylene is insulation, helps to reduce mutual capacitance, improves insulation resistance, improves voltage-resistent characteristic, has good flame retardant property; Halogen gas, gas pH value of water solution and the conductivity of overflowing during the cable material burning are low, have the low-corrosiveness energy; It is few to generate smog during cable fire.Cable has low electric capacity and low inductance, cable itself with electric charge to lack, be difficult for to produce electric spark; And possess performances such as wear-resisting, anti-tear, oil resistant, anti-ozone, oil resistant mud, high flame retardant, secondly, cable has good shielding properties, and good anti-external electromagnetic field disturbs and do not produce external interference.The cable of aluminium-plastic tape shielding, external diameter is little, in light weight, soft, moistureproof, and shield effectiveness is good.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Used for oil platform intrinsic safety computer cable, comprise several conductor groups 1, insulating barrier 2, several conductor groups 1 constitute by the conductor 3 of two wrap insulate layers 2 is stranded respectively, insulating barrier 2 thickness are 0.6mm-0.7mm, several conductor group 1 outsides are enclosed with interior belting layer 4 respectively, be provided with colour band 5 between interior belting layer 4 and the insulating barrier 2, the interior belting layer 4 outer sub-shields 6 that are enclosed with successively, middle belting layer 7, it is the wrapped formation of polyester film of 0.03mm that middle belting layer 7 adopts thickness, the wrapped rate of putting up is 25%-30%, several conductor group 1 outsides in the parcel behind the belting layer 7 are enclosed with outer belting layer 8 successively, total screen 9, sub-shield 6, total screen 9 adopts the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.05mm, aluminium-plastic tape is by being base material with the plastic film, and single or double applies aluminium powder and makes, and aluminium is towards interior during coating; Sub-shield 6, total screen 9 are placed the drainage thread 10 that the multiply tinned copper wire is stranded in being respectively equipped with, and drainage thread 10 cross sections are not less than 0.2mm
2, total screen 9 outer inner covering 11, armour 12, external sheath layers 13 of being enclosed with successively, conductor 3 adopts the stranded bunchy of several tinned copper wires to constitute, and conductor 3 sectional areas are 0.75-2.5 mm
2, insulating barrier 2 roundness are less than 1.25 times, and material adopts crosslinked polyethylene, and external sheath layer 13 materials adopt fire-retardant Halogen oil resistant mud polyolefin, and armour 12 adopts the tinned copper wire braiding to constitute, and count is not less than 90%.
Claims (5)
1. used for oil platform intrinsic safety computer cable, comprise several conductor groups, insulating barrier, it is characterized in that: described several conductor groups constitute by the conductor of two wrap insulate layers is stranded respectively, described thickness of insulating layer is 0.6mm-0.7mm, described several conductor group outsides are enclosed with interior belting layer respectively, be provided with colour band between belting layer and the insulating barrier in described, belting layer is enclosed with sub-shield outward successively in described, middle belting layer, belting layer employing thickness is the wrapped formation of polyester film of 0.03mm in described, the wrapped rate of putting up is 25%-30%, several conductor group outsides in the parcel behind the belting layer are enclosed with outer belting layer successively, total screen, described sub-shield, total screen adopts the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.05mm, aluminium-plastic tape is by being base material with the plastic film, single or double applies aluminium powder and makes, and aluminium is towards interior during coating; Described sub-shield, total screen are placed the drainage thread that the multiply tinned copper wire is stranded in being respectively equipped with, and the drainage thread cross section is not less than 0.2mm
2, described total screen is enclosed with inner covering, armour, external sheath layer outward successively.
2. used for oil platform intrinsic safety computer cable according to claim 1 is characterized in that: described conductor adopts the stranded bunchy of several tinned copper wires to constitute, and described cross-sectional area of conductor is long-pending to be 0.75-2.5 mm
2
3. used for oil platform intrinsic safety computer cable according to claim 1 is characterized in that: described insulating barrier roundness is less than 1.25 times, and material adopts crosslinked polyethylene.
4. used for oil platform intrinsic safety computer cable according to claim 1 is characterized in that: described external sheath layer material adopts fire-retardant Halogen oil resistant mud polyolefin.
5. used for oil platform intrinsic safety computer cable according to claim 1 is characterized in that: described armour adopts the tinned copper wire braiding to constitute, and count is not less than 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201226596U CN202003728U (en) | 2011-04-23 | 2011-04-23 | Intrinsic safe computer cable for oil platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201226596U CN202003728U (en) | 2011-04-23 | 2011-04-23 | Intrinsic safe computer cable for oil platform |
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| Publication Number | Publication Date |
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| CN202003728U true CN202003728U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201226596U Expired - Fee Related CN202003728U (en) | 2011-04-23 | 2011-04-23 | Intrinsic safe computer cable for oil platform |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714899A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Novel multi-pair shielding control cable for computer |
| CN103794274A (en) * | 2014-01-18 | 2014-05-14 | 安徽华茜电缆科技有限公司 | Environmental protection high-temperature-resistant pulling-resistant type intrinsic safety computer shield cable |
| CN103871617A (en) * | 2014-02-27 | 2014-06-18 | 安徽复兴电缆集团有限公司 | Cable for solar power generation |
| CN103915163A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Environment-friendly and flame-retardant computer shielding cable |
| CN103943200A (en) * | 2014-02-26 | 2014-07-23 | 安徽复兴电缆集团有限公司 | Shielding cable used for offshore oil platform |
| CN103943202A (en) * | 2014-02-28 | 2014-07-23 | 安徽幸福电器电缆有限公司 | Antistatic and ultrahigh-voltage silicone rubber cable |
| CN104867602A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Marine shielded-armored cable with current-guiding wire |
| CN111564241A (en) * | 2020-05-21 | 2020-08-21 | 华迅工业(苏州)有限公司 | High-speed communication cable |
-
2011
- 2011-04-23 CN CN2011201226596U patent/CN202003728U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714899A (en) * | 2012-09-29 | 2014-04-09 | 无锡荣诚电工材料有限公司 | Novel multi-pair shielding control cable for computer |
| CN103794274A (en) * | 2014-01-18 | 2014-05-14 | 安徽华茜电缆科技有限公司 | Environmental protection high-temperature-resistant pulling-resistant type intrinsic safety computer shield cable |
| CN103943200A (en) * | 2014-02-26 | 2014-07-23 | 安徽复兴电缆集团有限公司 | Shielding cable used for offshore oil platform |
| CN104867602A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Marine shielded-armored cable with current-guiding wire |
| CN103871617A (en) * | 2014-02-27 | 2014-06-18 | 安徽复兴电缆集团有限公司 | Cable for solar power generation |
| CN103943202A (en) * | 2014-02-28 | 2014-07-23 | 安徽幸福电器电缆有限公司 | Antistatic and ultrahigh-voltage silicone rubber cable |
| CN103915163A (en) * | 2014-03-13 | 2014-07-09 | 安徽猎塔电缆集团有限公司 | Environment-friendly and flame-retardant computer shielding cable |
| CN111564241A (en) * | 2020-05-21 | 2020-08-21 | 华迅工业(苏州)有限公司 | High-speed communication cable |
| CN111564241B (en) * | 2020-05-21 | 2022-06-07 | 华迅工业(苏州)有限公司 | High-speed communication 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: 20111005 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |