CN104238005B - Water resisting optical fiber and the optical cable for using the optical fiber - Google Patents
Water resisting optical fiber and the optical cable for using the optical fiber Download PDFInfo
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- CN104238005B CN104238005B CN201410518841.1A CN201410518841A CN104238005B CN 104238005 B CN104238005 B CN 104238005B CN 201410518841 A CN201410518841 A CN 201410518841A CN 104238005 B CN104238005 B CN 104238005B
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Abstract
The invention belongs to technical field of cables, and more particularly, to water resisting optical fiber, it includes centrally located fibre core, the covering except fibre core, the interior coat except covering；It is characterized in that having outside the first water blocking layer, the first water blocking layer outside coat and having outside damp-proof layer, damp-proof layer to have there is outer coat outside the second water blocking layer, the second water blocking layer, there is coloring layer outside outer coat；The invention also discloses the optical cables for using the optical fiber.The present invention has following main the utility model has the advantages that water resisting optical fiber block-water effect is good, tension stress is big；Produce that more convenient, cost is lower, is more favored by the producer, proofer and user using the optical cable of the water resisting optical fiber.
Description
Technical field
The invention belongs to technical field of cables, more particularly, to water resisting optical fiber and use the optical cable of the optical fiber.
Background technique
Main carriers of the optical fiber as communication, usage amount increasingly increase；Optical fiber is mainly used in field of signal transmissions at present,
Such as mobile phone signal, TV signal, control signal, monitoring signal, currently used optical fiber is silicon dioxide optical fiber, optical fiber
Mainly lose part be fibre core, for core diameter usually at 9 μm or so, the core diameter of multimode fibre is commonly 50 μm and 62.5 μ
m；Also there is covering outside fibre core, there is coat outside covering.Since the core diameter of optical fiber is relatively thin, and in air or water
In contain a large amount of hydrogen ion and hydroxide ion, be easy with silica in conjunction with, cause fibre core fracture or perhaps optical fiber
Fracture, influence the transmission of optical signal.For this purpose, constantly being studied and having been protected around protection optical fiber in optical cable industry, such as
Optical fiber is contacted with ointment, optical fiber is immersed in ointment, it is isolated with moisture, thereby realizes protection.But this side
Formula, on the one hand needs a large amount of ointment, and the use of ointment causes the significant wastage of the pollution of environment, resource, causes cost
It is high；More very, it will usually optical fiber is placed in Loose tube, fiber paste is filled in Loose tube, then by external Loose tube
Surrounding also fills greasy for preventing water, and moisture is further isolated.The increasing of cost is caused, moreover, ointment environment is unfriendly, when use
Therefore more difficult removal all brings great inconvenience to production manufacturer and user.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is disclosing a kind of water resisting optical fiber, further, the present invention will be taken off
Show the optical cable using the optical fiber, they adopt the following technical solutions to realize.
Water resisting optical fiber, it includes centrally located fibre core, the covering except fibre core, the interior coating except covering
Layer；It is characterized in that having outside coat and having outside the first water blocking layer, the first water blocking layer there is the second resistance outside damp-proof layer, damp-proof layer
There is outer coat outside water layer, the second water blocking layer.
Water resisting optical fiber, it includes centrally located fibre core, the covering except fibre core, the interior coating except covering
Layer；It is characterized in that having outside coat and having outside the first water blocking layer, the first water blocking layer there is the second resistance outside damp-proof layer, damp-proof layer
There is outer coat outside water layer, the second water blocking layer, there is coloring layer outside outer coat.
Water resisting optical fiber described above, it is characterised in that the coloring layer is that integral coating is distributed in except outer coat
, or part cladding is distributed in except outer coat in a manner of strip.
Water resisting optical fiber described above, it is characterised in that the coloring layer is that integral coating is distributed in except outer coat
When, coloring layer is same color.
Water resisting optical fiber described above, it is characterised in that the coloring layer is outside part cladding is distributed in a manner of strip
Except coat when, coloring layer have one or more, have it is a plurality of when, coloring layer have at least two colors.
Water resisting optical fiber described above, it is characterised in that the diameter of the fibre core is 7.0~12.0 μm or 62.5 ± 5 μm
Or 50.0 ± 2.5 μm.
Water resisting optical fiber described above, it is characterised in that the diameter of the covering is 125.0 ± 2.0 μm.
Water resisting optical fiber described above, it is characterised in that the diameter of the interior coat is 200.0 ± 10.0 μm.
Water resisting optical fiber described above, it is characterised in that first water blocking layer with a thickness of 30.0 ± 5.0 μm.
Water resisting optical fiber described above, it is characterised in that the damp-proof layer with a thickness of 20.0 ± 5.0 μm.
Water resisting optical fiber described above, it is characterised in that second water blocking layer with a thickness of 30.0 ± 5.0 μm.
Water resisting optical fiber described above, it is characterised in that the outer coat with a thickness of 40.0 ± 5.0 μm.
Water resisting optical fiber described above, it is characterised in that the coloring layer with a thickness of 5.0 ± 1.5 μm.
Water resisting optical fiber described above, it is characterised in that the fibre core, covering material be the material of optical fiber in the prior art
Material；The interior coat, outer coat material be the material of coat in the prior art.
Water resisting optical fiber described above, it is characterised in that first water blocking layer be synthesis of polymer material hot melt adhesive or
Person by weight, is made of following raw material: polyacrylic resin: 95~100 parts, fineness be 300 mesh water-proofing powder below: 1
~3 parts, the commercially available ultra-violet curing agent of model 3091: 3~5 parts, the commercially available ultraviolet initiator of model UV500: 8~12
Part.
Water resisting optical fiber described above, it is characterised in that the material of the damp-proof layer is polyethylene or polypropylene or nylon.
Water resisting optical fiber described above, it is characterised in that the material of second water blocking layer is polyurethane.
Water resisting optical fiber described above, it is characterised in that the material of the coloring layer is optical fiber ultra-violet curing coloring printing ink.
A kind of optical cable, it include Loose tube, the separation layer outside Loose tube, the reinforcer except separation layer,
The restrictive coating that reinforcer and separation layer are enveloped, it is characterised in that there are more described above to block water inside the Loose tube
Optical fiber, Loose tube is interior to be free of other fillers other than optical fiber.
A kind of optical cable, it includes that more Loose tubes, Loose tube are located at except reinforcer, and Loose tube and reinforcer are coated
Separation layer firmly, the restrictive coating except separation layer, it is characterised in that have inside the Loose tube more it is described above
Water resisting optical fiber, Loose tube is interior to be free of other fillers other than optical fiber；In the gap that separation layer, Loose tube, reinforcer are formed
There is no the substances that blocks water.
A kind of optical cable, it includes that at least one gasket for packing, at least one Loose tube, Loose tube and gasket for packing are located at reinforcement
Except part, the separation layer that Loose tube, gasket for packing and reinforcer are enveloped, the restrictive coating except separation layer, feature exist
There are more water resisting optical fibers described above inside the Loose tube, be free of other fillers other than optical fiber in Loose tube
Matter；There is no the substances that blocks water in the gap that separation layer, Loose tube, gasket for packing, reinforcer are formed.
In the present invention, for water resisting optical fiber in the case where containing coloring layer, nominal diameter is only 325 μm, with the prior art
245 μm of optical fiber nominal diameter of middle requirement pass light point to nearly ten thousand optical fiber in the prior art compared to slightly overstriking, by applicant
The research of cloth, when coat diameter is 180 μm, the efficiency of transmission of light has reached 99.98%, it is therefore desirable to which coat diameter is
245 μm of the considerations of being entirely for mechanical properties；Interior coat diameter is reduced to 200 μm of nominal values by applicant, for
Light transmissioning efficiency has little effect；After the structure of the application, country is fully achieved in optical property, the mechanical performance of optical fiber
The requirement of standard GB9771, some mechanical performance indicator completely outstripped the required value of GB9771；Optical fiber at -10 DEG C~+85 DEG C,
Temperature-humidity spy ring additional attenuation absolute value≤0.05dB/km under relative humidity；23 DEG C, 365 days immersion additional attenuation absolute values
≤0.03dB/km；85 DEG C, 85% relative humidity, 180 days damp and hot additional attenuation absolute value≤0.05dB/km；85 DEG C of xeothermic agings
Additional attenuation absolute value≤0.05dB/km；Offline screening tension >=14.6N；Optical fiber reached extremely excellent block-water performance and
Block-water effect.
When the water resisting optical fiber of the application is used in optical cable, although the overall diameter of optical fiber is increased slightly, due to not
It needs to fill fiber paste, block water fibre, water-proofing powder etc. in Loose tube to block water substance, and the stretching resistance of optical fiber is bigger, therefore Loose tube
Overall diameter can reduce by 10~20%, and speed of production can increase by 40~60%, the overall cost of Loose tube with it is in the prior art
Compared to saving 8~15%, in optical cable, due to no longer needing to fill other substances that block water outside Loose tube, cost is obvious
It reduces, production efficiency significantly improves, and production scene is cleaner and tidier, eliminates the buying for the substance especially ointment class that blocks water, makes ring
Border is more friendly, no longer needs to remove the paper of ointment when inspection, when using, therefore, more by the producer, proofer, Yong Hushi
Work side is liked.
In the present invention, since the overall diameter of water resisting optical fiber increases, so that coloring layer is not needed as in the prior art,
The part cladding in a manner of strip must can be used to be distributed in such a way that integral coating is distributed in except outer coat
Mode except outer coat, such coloring layer can only have one or more, when having a plurality of, and coloring layer has at least two
Kind color；Clearly explanation can also be realized at one and is easily produced, and at two, can form different optical fiber not by combining
With the difference of color combination；And the optical fiber of 245 μm of nominal diameters in the prior art, it can not accomplish in a manner of strip at present
Color is distinguished, and can only be distinguished using colour circle.
Therefore, the present invention has following main the utility model has the advantages that water resisting optical fiber block-water effect is good, tension stress is big；Use the resistance
The optical cable production of water optical fiber is more convenient, cost is lower, more by the producer, proofer and user favor.
Detailed description of the invention
Fig. 1 is the cross-sectional structure schematic diagram of the embodiment 1 of water resisting optical fiber of the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of the embodiment 2 of water resisting optical fiber of the present invention.
Fig. 3 is the cross-sectional structure schematic diagram of the embodiment 3 of water resisting optical fiber of the present invention.
Fig. 4 is the cross-sectional structure schematic diagram of the embodiment 4 of water resisting optical fiber of the present invention.
Fig. 5 is in embodiment 5 of the present invention using the cross-sectional structure schematic diagram of the optical cable of water resisting optical fiber.
Fig. 6 is in embodiment 6 of the present invention using the cross-sectional structure schematic diagram of the optical cable of water resisting optical fiber.
Specific embodiment
Embodiment 1
Referring to Fig.1, water resisting optical fiber 10, it includes centrally located fibre core 1, the covering 2 except fibre core, is located at covering
Except interior coat 3；It is characterized in that having outside the first water blocking layer 4, the first water blocking layer outside coat has damp-proof layer 5, prevents
Having outside damp layer has outer coat 7 outside the second water blocking layer 6, the second water blocking layer.
Embodiment 2
See Fig. 2, water resisting optical fiber 10, it includes centrally located fibre core 1, the covering 2 except fibre core, is located at covering
Except interior coat 3；It is characterized in that having outside the first water blocking layer 4, the first water blocking layer outside coat has damp-proof layer 5, prevents
Having outside damp layer has outer coat 7 outside the second water blocking layer 6, the second water blocking layer, have coloring layer 8 outside outer coat；Described
Chromatograph is that integral coating is distributed in except outer coat；Coloring layer is same color.
Embodiment 3
See Fig. 3, water resisting optical fiber 10, substantially with embodiment 2, the difference is that the coloring layer 8 is with strip
Locally cladding is distributed in except outer coat mode；Coloring layer has one.
Embodiment 4
See Fig. 4, water resisting optical fiber described above, it is characterised in that the coloring layer 8 is the part packet in a manner of strip
It covers and is distributed in except outer coat, coloring layer has two, and coloring layer has at least two different colours.
Certainly, coloring layer can also be a plurality of, and coloring layer has at least two colors.
Further, coloring layer can be same color, and the area of different optical fiber is realized by vitta width distribution
Point.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the diameter of the fibre core is 7.0~12.0 μ
M or 62.5 ± 5 μm or 50.0 ± 2.5 μm.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the diameter of the covering is 125.0 ± 2.0
μm。
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the diameter of the interior coat is 200.0
±10.0μm。
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that first water blocking layer with a thickness of 30.0
±5.0μm。
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the damp-proof layer with a thickness of 20.0 ±
5.0μm。
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that second water blocking layer with a thickness of 30.0
±5.0μm。
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the outer coat with a thickness of 40.0 ±
5.0μm。
Above-mentioned embodiment 2 water resisting optical fiber described in any embodiment into embodiment 4, it is characterised in that described
Chromatograph with a thickness of 5.0 ± 1.5 μm.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the fibre core, covering material be it is existing
The material of optical fiber in technology；The interior coat, outer coat material be the material of coat in the prior art.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that first water blocking layer is high molecular material
The hot melt adhesive of synthesis or by weight, is made of following raw material: polyacrylic resin: 95~100 parts, fineness be 300 mesh
Water-proofing powder below: 1~3 part, the commercially available ultra-violet curing agent of model 3091: 3~5 parts, the commercially available ultraviolet light of model UV500
Initiator: 8~12 parts.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the material of the damp-proof layer be polyethylene or
Polypropylene or nylon 6.
Water resisting optical fiber described in any of the above-described embodiment, it is characterised in that the material of second water blocking layer is polyamine
Rouge.
Above-mentioned embodiment 2 water resisting optical fiber described in any embodiment into embodiment 4, it is characterised in that described
The material of chromatograph is optical fiber ultra-violet curing coloring printing ink.
Embodiment 5
See Fig. 5, a kind of optical cable, it include Loose tube 91, the separation layer 92 outside Loose tube, be located at separation layer it
Outer reinforcer 93, the restrictive coating 94 for enveloping reinforcer and separation layer, it is characterised in that have inside the Loose tube more
Water resisting optical fiber described in any of the above-described embodiment of root, Loose tube is interior to be free of other fillers other than optical fiber.
Embodiment 6
See Fig. 6, a kind of optical cable, it includes at least one gasket for packing, at least one Loose tube 91, Loose tube and filling
Rope is located at except reinforcer 93, separation layer 92 that Loose tube, gasket for packing and reinforcer are enveloped, the shield except separation layer
Jacket layer 94, it is characterised in that there is water resisting optical fiber described in more any of the above-described embodiments, Loose tube inside the Loose tube
It is interior that other fillers are free of other than optical fiber；There is no resistances in the gap that separation layer, Loose tube, gasket for packing, reinforcer are formed
Water substance.
In the present invention, for water resisting optical fiber in the case where containing coloring layer, nominal diameter is only 325 μm, with the prior art
245 μm of optical fiber nominal diameter of middle requirement pass light point to nearly ten thousand optical fiber in the prior art compared to slightly overstriking, by applicant
The research of cloth, when coat diameter is 180 μm, the efficiency of transmission of light has reached 99.98%, it is therefore desirable to which coat diameter is
245 μm of the considerations of being entirely for mechanical properties；Interior coat diameter is reduced to 200 μm of nominal values by applicant, for
Light transmissioning efficiency has little effect；After the structure of the application, country is fully achieved in optical property, the mechanical performance of optical fiber
The requirement of standard GB9771, some mechanical performance indicator completely outstripped the required value of GB9771；Optical fiber at -10 DEG C~+85 DEG C,
Temperature-humidity spy ring additional attenuation absolute value≤0.05dB/km under relative humidity；23 DEG C, 365 days immersion additional attenuation absolute values
≤0.03dB/km；85 DEG C, 85% relative humidity, 180 days damp and hot additional attenuation absolute value≤0.05dB/km；85 DEG C of xeothermic agings
Additional attenuation absolute value≤0.05dB/km；Offline screening tension >=14.6N；Optical fiber reached extremely excellent block-water performance and
Block-water effect.
When the water resisting optical fiber of the application is used in optical cable, although the overall diameter of optical fiber is increased slightly, due to not
It needs to fill fiber paste, block water fibre, water-proofing powder etc. in Loose tube to block water substance, and the stretching resistance of optical fiber is bigger, therefore Loose tube
Overall diameter can reduce by 10~20%, and speed of production can increase by 40~60%, the overall cost of Loose tube with it is in the prior art
Compared to saving 8~15%, in optical cable, due to no longer needing to fill other substances that block water outside Loose tube, cost is obvious
It reduces, production efficiency significantly improves, and production scene is cleaner and tidier, eliminates the buying for the substance especially ointment class that blocks water, makes ring
Border is more friendly, no longer needs to remove the paper of ointment when inspection, when using, therefore, more by the producer, proofer, Yong Hushi
Work side is liked.
In the present invention, since the overall diameter of water resisting optical fiber increases, so that coloring layer is not needed as in the prior art,
The part cladding in a manner of strip must can be used to be distributed in such a way that integral coating is distributed in except outer coat
Mode except outer coat, such coloring layer can only have one or more, when having a plurality of, and coloring layer has at least two
Kind color；Clearly explanation can also be realized at one and is easily produced, and at two, can form different optical fiber not by combining
With the difference of color combination；And the optical fiber of 245 μm of nominal diameters in the prior art, it can not accomplish in a manner of strip at present
Color is distinguished, and can only be distinguished using colour circle.
Therefore, the present invention has following main the utility model has the advantages that water resisting optical fiber block-water effect is good, tension stress is big；Use the resistance
The optical cable production of water optical fiber is more convenient, cost is lower, more by the producer, proofer and user favor.
The present invention is not limited to above-mentioned preferred forms, it should be understood that design of the invention can be by other various shapes
Formula is implemented to use, they also fall in protection scope of the present invention.
Claims (8)
1. water resisting optical fiber, it includes centrally located fibre core, the covering except fibre core, the interior coating except covering
Layer；It is characterized in that having outside coat and having outside the first water blocking layer, the first water blocking layer there is the second resistance outside damp-proof layer, damp-proof layer
There is outer coat outside water layer, the second water blocking layer；First water blocking layer by weight, is made of: polypropylene following raw material
Acid resin: 95~100 parts, fineness be 300 mesh water-proofing powder below: 1~3 part, the commercially available ultra-violet curing agent of model 3091: 3
~5 parts, the commercially available ultraviolet initiator of model UV500: 8~12 parts；The material of the damp-proof layer is polyethylene or polypropylene
Or nylon；The material of second water blocking layer is polyurethane.
2. water resisting optical fiber, it includes centrally located fibre core, the covering except fibre core, the interior coating except covering
Layer；It is characterized in that having outside coat and having outside the first water blocking layer, the first water blocking layer there is the second resistance outside damp-proof layer, damp-proof layer
There is outer coat outside water layer, the second water blocking layer, there is coloring layer outside outer coat；The coloring layer with a thickness of 5.0 ± 1.5
μm；First water blocking layer is by weight, to be made of following raw material: polyacrylic resin: 95~100 parts, fineness 300
Mesh water-proofing powder below: 1~3 part, the commercially available ultra-violet curing agent of model 3091: 3~5 parts, model UV500 it is commercially available ultraviolet
Photoinitiator: 8~12 parts；The material of the damp-proof layer is polyethylene or polypropylene or nylon；The material of second water blocking layer
For polyurethane；The material of the coloring layer is optical fiber ultra-violet curing coloring printing ink.
3. water resisting optical fiber according to claim 2, it is characterised in that the coloring layer is that integral coating is distributed in outer coating
Except layer, or is locally coated and be distributed in except outer coat in a manner of strip.
4. water resisting optical fiber according to claim 3, it is characterised in that the coloring layer is that integral coating is distributed in outer coating
Layer except when, coloring layer is same color.
5. water resisting optical fiber according to claim 3, it is characterised in that the coloring layer is the part cladding in a manner of strip
Be distributed in except outer coat when, coloring layer have one or more, have it is a plurality of when, coloring layer have at least two face
Color.
6. according to claim 1 to water resisting optical fiber described in claim 5 any one, it is characterised in that the diameter of the fibre core
For 7.0~12.0 μm or 62.5 ± 5 μm or 50.0 ± 2.5 μm；The diameter of the covering is 125.0 ± 2.0 μm；In described
The diameter of coat is 200.0 ± 10.0 μm；First water blocking layer with a thickness of 30.0 ± 5.0 μm；The damp-proof layer with a thickness of
20.0±5.0μm；Second water blocking layer with a thickness of 30.0 ± 5.0 μm；The outer coat with a thickness of 40.0 ± 5.0 μ
m。
7. a kind of optical cable, it includes Loose tube, the separation layer outside Loose tube, the reinforcer except separation layer, incites somebody to action
The restrictive coating that reinforcer and separation layer envelope, it is characterised in that have described in more claims 5 inside the Loose tube
Water resisting optical fiber, Loose tube is interior to be free of other fillers other than optical fiber.
8. a kind of optical cable, it includes that more Loose tubes, Loose tube are located at except reinforcer, and Loose tube and reinforcer are enveloped
Separation layer, the restrictive coating except separation layer, it is characterised in that have described in more claims 5 inside the Loose tube
Water resisting optical fiber, other fillers are free of other than optical fiber in Loose tube；The gap that separation layer, Loose tube, reinforcer are formed
In there is no block water substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410518841.1A CN104238005B (en) | 2014-10-05 | 2014-10-05 | Water resisting optical fiber and the optical cable for using the optical fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410518841.1A CN104238005B (en) | 2014-10-05 | 2014-10-05 | Water resisting optical fiber and the optical cable for using the optical fiber |
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| CN104238005B true CN104238005B (en) | 2019-02-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663761A (en) * | 2014-10-19 | 2018-10-16 | 凌卫康 | A kind of central-beam tube type fiber optic cable with water resisting optical fiber |
| CN105353485A (en) * | 2015-12-16 | 2016-02-24 | 南京华信藤仓光通信有限公司 | Waterproof optical fiber and preparation method thereof |
| CN105353483A (en) * | 2015-12-16 | 2016-02-24 | 南京华信藤仓光通信有限公司 | Full-dry nonmetal optical cable |
| CN107807429A (en) * | 2017-12-27 | 2018-03-16 | 苏州塔比诺机电有限公司 | A kind of optical fiber |
| CN110727070B (en) * | 2019-10-24 | 2020-06-26 | 江苏华脉光电科技有限公司 | Full-dry type nonmetal fire-resistant optical cable |
| CN110764207A (en) * | 2019-11-13 | 2020-02-07 | 江苏亨通光电股份有限公司 | Novel water-blocking full-dry optical cable structure and preparation method thereof |
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| CN101393310A (en) * | 2008-11-05 | 2009-03-25 | 沈群华 | Optical fibre band optical cable |
| CN102998757A (en) * | 2012-11-01 | 2013-03-27 | 梁兵 | High-strength submarine optical cable |
| CN203812631U (en) * | 2014-03-27 | 2014-09-03 | 上海贝恩科电缆有限公司 | Multifunctional weatherability cable |
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