CN105280300A - Shielded cable - Google Patents
Shielded cable Download PDFInfo
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- CN105280300A CN105280300A CN201510826938.3A CN201510826938A CN105280300A CN 105280300 A CN105280300 A CN 105280300A CN 201510826938 A CN201510826938 A CN 201510826938A CN 105280300 A CN105280300 A CN 105280300A
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- type cable
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Abstract
The invention provides a shielded cable, and relates to the field of power cables. The shielded cable comprises a plurality of insulation cable cores, a braid layer, a sheathing layer, a copper-plastic composite shield layer and a plurality of interval shield plates. The shielded cable provided by the embodiment of the present invention has excellent anti-interference performance. By use of the shielded cable, signal transmission is more stable and images transmitted are clearer.
Description
Technical field
The present invention relates to power cable field, in particular to a kind of shielded type cable.
Background technology
Cable is one of indispensable consumptive material in electric power transfer process, and along with the continuous progress of society, the quality requirement of all trades and professions to cable is also more and more higher.
Existing cable comprises many conductors, be coated on insulating barrier, braid and restrictive coating four parts outside each conductor, wherein, conductor and insulating barrier form insulated wire cores, and braid is wrapped in the outside of many insulated wire cores, and restrictive coating is coated on the outer surface of braid.Shielded type cable, normally by several or several groups of wires, is often organized at least two and strandedly to be formed, and often organizes mutually insulated between wire and be twisted into round a center, and whole outside is surrounded by the cover layer of high-insulation.Current cable interference free performance is poor, and be not easy to bend in signals transmission, anti-external disturbance performance and the envelope eapsulotomy of the cable of this structure are poor, easily cause distorted signals, therefore Signal transmissions is very unstable, and the image of transmission is also very unintelligible.
Summary of the invention
The object of the present invention is to provide a kind of shielded type cable, to improve above-mentioned problem.
The embodiment of the present invention is achieved in that
A kind of shielded type cable, comprise many insulated wire cores, braid, restrictive coating, copper moulds composite shielding layer and multiple intervals barricade, it is hollow-core construction that described copper moulds composite shielding layer, described braid is paperwrapped in described copper and moulds outside composite shielding layer, described restrictive coating is paperwrapped in outside described braid, described copper is moulded composite shielding layer and is divided into the tube chamber equal with described insulated wire cores quantity by described multiple intervals barricade, and described many insulated wire cores lay respectively in a described tube chamber.
Further, described shielded type cable also comprises cold-resistant insulation layer, and described cold-resistant insulation layer is paperwrapped in described copper and moulds outside composite shielding layer, and described braid is paperwrapped in outside described cold-resistant insulation layer.
Consider the northern area in cold, the insulating outer layer of universal shield cable due to low temperature easily become brittle, cracking, thus cause the situation of electric leakage to occur, therefore mould outside composite shielding layer at copper and be surrounded with cold-resistant insulation layer, thus avoid the generation of above-mentioned situation.
Further, described cold-resistant insulation layer is polyvinyl chloride layer.
Polyvinyl chloride layer still can have good physical mechanical, electric and ageing-resistant performance at quite low temperatures, is not easy cracking, and cold-resistant insulation layer adopts polyvinyl chloride layer effectively to ensure that security performance and the useful life of shielded type cable.
Further, and one end of each described interval barricade is connected with the outer wall of described fixed core, and the inwall that the other end moulds composite shielding layer with described copper is connected.
At the northern area of cold, freezing, if the weight of freezing is larger easily appears outward in the restrictive coating of shielded type cable, shielded type cable may be broken, cause large-area power-cuts, fixed core is set by the cavity of moulding composite shielding layer at copper, can ensures that shielded type cable can bear larger pulling force.
Further, described fixed core is fixation with steel wire core.
Further, described fixed core is acrylic resin fixed core.
Further, described shielded type cable also comprises aluminium-plastic tape overcoat, and described aluminium-plastic tape overcoat is paperwrapped in outside described braid, and described restrictive coating is paperwrapped in outside described aluminium-plastic tape overcoat.
Aluminium-plastic tape overcoat has the feature such as signal shielding, antistatic, antiultraviolet, moistureproof oxygen barrier shading, Cold-proof oilproof is high temperature resistant, the easy Feng Xingqiang of fresh-keeping oxygen barrier; Aluminium-plastic tape overcoat is added outside braid; the shielding properties of shielded type cable can not only be improved further; inner copper can also be protected to mould composite shielding layer, thus greatly reduce the possibility that copper moulds composite shielding layer moisture absorption, oxidation, ensure that long-term, the efficient shield effectiveness of shielded type cable.
Further, the outer surface of described restrictive coating is symmetrically arranged with draw-in groove and the projection with described pocket matches.
Consider that common shielded type cable is easily wound around in the process of installing, make to install very inconvenience, therefore the outer surface of restrictive coating is symmetrically arranged with draw-in groove and the projection with described pocket matches, when laying or set up multi-strand shielded cable, the projection of the watertight composition outer surface of a shielded type cable can be adopted to be spliced by multi-strand shielded cable fixing with the mode of the draw-in groove phase clamping of the watertight composition outer surface of another root shielded type cable, fixed by relative position between multi-strand shielded cable after installing, the situation that can not occur mutually to be wound around occurs.
Further, described aluminium-plastic tape overcoat is coated with watertight composition, and described restrictive coating is paperwrapped in outside watertight composition.
Consider that shielded type cable is installed on outdoor usually, rainy day, rainwater easily infiltrated in the insulated wire cores of shielded type cable inside, easily cause core to leak electricity, the insulated wire cores of watertight composition for avoiding extraneous water to penetrate into shielded type cable inside, thus the situation avoiding shielded type cable to leak electricity occur.
Further, described watertight composition is polyethylene waterproof layer.
Polyethylene waterproof layer has good waterproof performance, the feature that electrical insulating property is excellent, and also has good resistance to low temperature.Watertight composition selects polyethylene waterproof layer, further can also ensure the resistance to low temperature of shielded type cable while ensureing waterproof effect.
Hinge structure, the embodiment of the present invention has following beneficial effect: a kind of shielded type cable that the embodiment of the present invention provides, outside multiple insulated wire cores, hold copper mould composite shielding layer, copper is moulded composite shielding layer and is had good shielding, interference free performance is very strong, braid is paperwrapped in copper and moulds outside composite shielding layer in addition, thus constitute a set of composite shielding layer, greatly strengthen the interference free performance of this shielded type cable, Signal transmissions is more stable, the image of transmission is also more clear, and described cavity is divided into the tube chamber equal with described insulated wire cores quantity by multiple intervals barricade, each described insulated wire cores is positioned at a described tube chamber, because interval barricade has the effect of shielding interference signal, therefore each region is non-interference, further enhancing the antijamming capability of this shielded type cable.
For making the above-mentioned purpose of the embodiment of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is embodiment of the present invention part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the embodiment of the present invention provided in the accompanying drawings and the scope of the claimed embodiment of the present invention of not intended to be limiting, but the selected embodiment of the embodiment of the present invention is only represented.Based on the embodiment in the embodiment of the present invention, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of embodiment of the present invention protection.
The structural representation of the cross section of a kind of shielded type cable that Fig. 1 provides for the embodiment of the present invention one;
The structural representation of the cross section of a kind of shielded type cable that Fig. 2 provides for the embodiment of the present invention two.
Wherein, the corresponding relation between Reference numeral and component names is as follows: insulated wire cores 101, braid 102, restrictive coating 103, copper moulds composite shielding layer 104, interval barricade 105, cold-resistant insulation layer 106, fixed core 107, aluminium-plastic tape overcoat 108, draw-in groove 109, protruding 110, watertight composition 111.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only embodiment of the present invention part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the embodiment of the present invention provided in the accompanying drawings and the scope of the claimed embodiment of the present invention of not intended to be limiting, but the selected embodiment of the embodiment of the present invention is only represented.Based on the embodiment of the embodiment of the present invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of embodiment of the present invention protection.
Cable is one of indispensable consumptive material in electric power transfer process, and along with the continuous progress of society, the quality requirement of all trades and professions to cable is also more and more higher.Current cable interference free performance is poor, and be not easy to bend in signals transmission, anti-external disturbance performance and the envelope eapsulotomy of the shielded type cable of this structure are poor, easily cause distorted signals, therefore Signal transmissions is very unstable, and the image of transmission is also very unintelligible.
In view of this, inventor finds through long-term observation and research, provides a kind of shielded type cable, and this shielded type cable comprises many insulated wire cores, braid, restrictive coating, copper mould composite shielding layer and multiple intervals barricade.The shielded type cable that the embodiment of the present invention provides has good interference free performance, and Signal transmissions is more stable, and the image of transmission is also more clear.
Also by reference to the accompanying drawings the embodiment of the present invention is described in further detail below by specific embodiment.
Consult Fig. 1, a kind of shielded type cable that the embodiment of the present invention one provides, comprise four insulated wire cores 101, braid 102, restrictive coating 103, copper moulds composite shielding layer 104 and four interval barricades 105, it is hollow columniform cavity that copper moulds composite shielding layer 104, copper is moulded composite shielding layer 104 and is had good shielding, and interference free performance is very strong.Line between four insulated wire cores 101 is square, and copper is moulded composite shielding layer 104 and is paperwrapped in outside four insulated wire cores 101.
Braid 102 specifically selects proof copper-wire braided layer in the present embodiment, and proof copper-wire braided layer is paperwrapped in copper and moulds outside composite shielding layer 104.Proof copper-wire braided layer has 1, the shielding action of anti-electromagnetic interference, as the indigo plant shielded type cable of tinned copper wire braiding, the control shielded type cable etc. of proof copper-wire braided; 2, eliminate the shielding action of electric power shielding cable surface current potential, it plays the latent electricity line of force and eliminates induced electricity, as total shielding of high-tension shielding cable; 3, the shielding action of safeguard protection, weaves copper wire outward and the contact good with ground core or be used as ground wire at main core insulation, can react drain conditions in time, as shield type mine-shield cable.
Restrictive coating 103 is paperwrapped in outside braid 102, and the Main Function of restrictive coating 103 is that protection is positioned at the braid 102 of restrictive coating 103, copper moulds composite shielding layer 104 and insulated wire cores 101.Its main performance be moistureproof, grease proofing, anticorrosion, solar control is aging, resistance to combustion and mechanical protection, and is have anti-electric, the antimagnetic dry effect such as anti-definitely.
The connection of four interval barricades 105 is cruciformity arrangement, and cavity is divided into the tube chamber equal with insulated wire cores 101 quantity by four interval barricades 105, and many insulated wire cores 101 lay respectively in a tube chamber.Because interval barricade 105 has the effect of shielding interference signal, therefore each region is non-interference, further enhancing the antijamming capability of this shielded type cable.
A kind of shielded type cable that the embodiment of the present invention provides holds copper and moulds composite shielding layer 104 outside multiple insulated wire cores 101, copper is moulded composite shielding layer 104 and is had good shielding, interference free performance is very strong, braid 102 is paperwrapped in copper and moulds outside composite shielding layer 104 in addition, thus constitute a set of composite shielding layer, greatly strengthen the interference free performance of this shielded type cable, Signal transmissions is more stable, and the image of transmission is also more clear; And described cavity is divided into the tube chamber equal with described insulated wire cores 101 quantity by multiple intervals barricade 105, each described insulated wire cores 101 is positioned at a described tube chamber, because interval barricade 105 has the effect of shielding interference signal, therefore each region is non-interference, further enhancing the antijamming capability of this shielded type cable.
In the present embodiment, the number of insulated wire cores 101 and interval barricade 105 not only can be four, also can be two, three, five etc., seldom limits at this.
It should be noted that 1. rated voltage is U0/U3.6/6KV when reality uses this shielded type cable in addition.2. the Long-term service temperature of cable conductor is 90 DEG C.3. the minimum bending radius of cable is cable size 6 times.4. cable must not long term exposure in the sunlight.5. the bottom line core of cable must good earth.
Consult Fig. 2, the embodiment of the present invention two provides a kind of shielded type cable, it should be noted that, the shielded type cable that the present embodiment provides, its basic structure is identical with embodiment one with the technique effect of principle and generation, for concise and to the point description, the not mentioned part of the present embodiment part, can corresponding contents in reference example one.
This shielded type cable comprises four insulated wire cores 101, braid 102, restrictive coating 103, copper mould composite shielding layer 104 and four interval barricades 105.It is hollow cavity that copper moulds composite shielding layer 104, and copper is moulded composite shielding layer 104 and is paperwrapped in outside four insulated wire cores 101.Restrictive coating 103 is paperwrapped in outside described braid 102, and cavity is divided into the tube chamber equal with insulated wire cores 101 quantity by four interval barricades 105, and many insulated wire cores 101 lay respectively in a tube chamber.
Consider the northern area in cold, the insulating barrier of the insulated wire cores 101 of universal shield cable due to low temperature easily become brittle, cracking, thus cause the situation of electric leakage to occur, this shielded type cable also comprises cold-resistant insulation layer 106, cold-resistant insulation layer 106 is paperwrapped in copper and moulds outside composite shielding layer 104, braid 102 is paperwrapped in outside cold-resistant insulation layer 106, thus avoids the generation of above-mentioned situation.
Further, described cold-resistant insulation layer 106 is polyvinyl chloride layer.Polyvinyl chloride layer still can have good physical mechanical, electric and ageing-resistant performance at quite low temperatures, and be not easy cracking, cold-resistant insulation layer 106 adopts polyvinyl chloride layer effectively to ensure that security performance and the useful life of shielded type cable.Certainly, cold-resistant insulation layer 106 is not limited only to polyvinyl chloride layer, such as, can also adopt polyethylene layer, take polyvinyl chloride layer as the best.
Consider the northern area in cold, the restrictive coating 103 of shielded type cable outer easily appearance freezes, if the weight of freezing is comparatively large, may breaks shielded type cable, cause large-area power-cuts.Shielded type cable also includes fixed core 107, fixed core 107 is positioned at the geometric center of the cavity by moulding composite shielding layer 104 at copper, and one end of each interval barricade 105 is connected with the outer wall of fixed core 107, the inwall that the other end and copper mould composite shielding layer 104 is connected, and can ensure that shielded type cable can bear larger pulling force like this.In the present embodiment, fixed core 107 is fixation with steel wire core, and certainly, fixed core 107 is not limited only to fixation with steel wire core, such as, can also adopt wolfram steel silk fixed core, acrylic resin fixed core.
Consider that common shielded type cable is easily wound around in the process of installing, make to install very inconvenience, therefore the outer surface of restrictive coating 103 projection 110 that is symmetrically arranged with draw-in groove 109 and mates with described draw-in groove 109, when laying or set up multi-strand shielded cable, the projection 110 of watertight composition 111 outer surface of a shielded type cable can be adopted to be spliced by multi-strand shielded cable fixing with the mode of the draw-in groove 109 phase clamping of watertight composition 111 outer surface of another root shielded type cable, relative position between multi-strand shielded cable after installing is fixed, the situation that can not occur mutually to be wound around occurs.
Further, shielded type cable also comprises aluminium-plastic tape overcoat 108, and shielded type cable also comprises aluminium-plastic tape overcoat 108, and aluminium-plastic tape overcoat 108 is paperwrapped in outside braid 102, and restrictive coating 103 is paperwrapped in outside aluminium-plastic tape overcoat 108.Aluminium-plastic tape overcoat 108 has the feature such as signal shielding, antistatic, antiultraviolet, moistureproof oxygen barrier shading, Cold-proof oilproof is high temperature resistant, the easy Feng Xingqiang of fresh-keeping oxygen barrier; Aluminium-plastic tape overcoat 108 is added outside braid 102; the shielding properties of shielded type cable can not only be improved further; inner copper can also be protected to mould composite shielding layer 104; thus greatly reduce the possibility that copper moulds composite shielding layer 104 moisture absorption, oxidation, ensure that long-term, the efficient shield effectiveness of shielded type cable.
Consider that shielded type cable is installed on outdoor usually, rainy day, rainwater easily infiltrated in the insulated wire cores 101 of shielded type cable inside, and easily cause core to leak electricity, aluminium-plastic tape overcoat 108 is coated with watertight composition 111, and restrictive coating 103 is paperwrapped in outside watertight composition 111.The insulated wire cores 101 of watertight composition 111 for avoiding extraneous water to penetrate into shielded type cable inside, thus the situation avoiding shielded type cable to leak electricity occurs.
Further, watertight composition 111 is polyethylene waterproof layer.Polyethylene waterproof layer has good waterproof performance, the feature that electrical insulating property is excellent, and also has good resistance to low temperature.Watertight composition 111 selects polyethylene waterproof layer, further can also ensure the resistance to low temperature of shielded type cable while ensureing waterproof effect.Certainly, watertight composition 111 is also not limited only to polyethylene waterproof layer, such as, can also adopt polyolefin watertight composition.
In the description of the embodiment of the present invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in embodiments of the present invention can be understood.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In the description of the embodiment of the present invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the embodiment of the present invention and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the embodiment of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
The foregoing is only the preferred embodiment of the embodiment of the present invention, be not limited to the embodiment of the present invention, for a person skilled in the art, the embodiment of the present invention can have various modifications and variations.Within all spirit in the embodiment of the present invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection range that all should be included in the embodiment of the present invention.
Claims (10)
1. a shielded type cable, it is characterized in that, comprise many insulated wire cores, braid, restrictive coating, copper moulds composite shielding layer and multiple intervals barricade, it is hollow-core construction that described copper moulds composite shielding layer, described braid is paperwrapped in described copper and moulds outside composite shielding layer, described restrictive coating is paperwrapped in outside described braid, and described copper is moulded composite shielding layer and is divided into the tube chamber equal with described insulated wire cores quantity by described multiple intervals barricade, and each described insulated wire cores is positioned at a described tube chamber.
2. shielded type cable according to claim 1, is characterized in that, described shielded type cable also comprises cold-resistant insulation layer, and described cold-resistant insulation layer is paperwrapped in described copper and moulds outside composite shielding layer, and described braid is paperwrapped in outside described cold-resistant insulation layer.
3. shielded type cable according to claim 2, is characterized in that, described cold-resistant insulation layer is polyvinyl chloride layer.
4. shielded type cable according to claim 3, it is characterized in that, described shielded type cable also comprises fixed core, described fixed core is positioned at the geometric center that described copper moulds composite shielding layer, and one end of each described interval barricade is connected with the outer wall of described fixed core, the inwall that the other end moulds composite shielding layer with described copper is connected.
5. shielded type cable according to claim 4, is characterized in that, described fixed core is fixation with steel wire core.
6. shielded type cable according to claim 4, is characterized in that, described fixed core is acrylic resin fixed core.
7. according to the arbitrary described shielded type cable of claim 1 ~ 6, it is characterized in that, described shielded type cable also comprises aluminium-plastic tape overcoat, and described aluminium-plastic tape overcoat is paperwrapped in outside described braid, and described restrictive coating is paperwrapped in outside described aluminium-plastic tape overcoat.
8. shielded type cable according to claim 7, is characterized in that, the outer surface of described restrictive coating is symmetrically arranged with draw-in groove and the projection with described pocket matches.
9. shielded type cable according to claim 8, is characterized in that, described aluminium-plastic tape overcoat is coated with watertight composition, and described restrictive coating is paperwrapped in outside watertight composition.
10. shielded type cable according to claim 9, is characterized in that, described watertight composition is polyethylene waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826938.3A CN105280300A (en) | 2015-11-24 | 2015-11-24 | Shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826938.3A CN105280300A (en) | 2015-11-24 | 2015-11-24 | Shielded cable |
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| CN105280300A true CN105280300A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826938.3A Pending CN105280300A (en) | 2015-11-24 | 2015-11-24 | Shielded cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107403660A (en) * | 2017-09-15 | 2017-11-28 | 贵州固达电缆有限公司 | A kind of medical four cores shielded cable |
| CN109243693A (en) * | 2018-09-03 | 2019-01-18 | 江阴神辉电工材料有限公司 | A kind of highway high efficient antifreeze snow melt cable |
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| CN103295683A (en) * | 2013-06-21 | 2013-09-11 | 无锡市群星线缆有限公司 | Compound high fidelity coaxial cable |
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| CN204632392U (en) * | 2015-06-08 | 2015-09-09 | 银通科技（上海）有限公司 | A kind of insulated cable |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130025907A1 (en) * | 2011-07-26 | 2013-01-31 | Tyco Electronics Corporation | Carbon-based substrate conductor |
| CN103295683A (en) * | 2013-06-21 | 2013-09-11 | 无锡市群星线缆有限公司 | Compound high fidelity coaxial cable |
| CN203644414U (en) * | 2013-11-28 | 2014-06-11 | 安徽徽宁电器仪表集团有限公司 | Power cable with cross-shaped rubber skeleton |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107403660A (en) * | 2017-09-15 | 2017-11-28 | 贵州固达电缆有限公司 | A kind of medical four cores shielded cable |
| CN109243693A (en) * | 2018-09-03 | 2019-01-18 | 江阴神辉电工材料有限公司 | A kind of highway high efficient antifreeze snow melt cable |
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Application publication date: 20160127 |
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