CN108761688A - A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology - Google Patents
A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology Download PDFInfo
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- CN108761688A CN108761688A CN201810673981.4A CN201810673981A CN108761688A CN 108761688 A CN108761688 A CN 108761688A CN 201810673981 A CN201810673981 A CN 201810673981A CN 108761688 A CN108761688 A CN 108761688A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention provides a kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology, it is related to technical field of communication equipment, miniature flexible armouring direct-burried provided by the invention, pipeline include with optical cable：Optical fiber, the first water blocking layer, microbeam pipe, the second water blocking layer, stainless protection layer, enhancement layer and sheath；The quantity of optical fiber is more; microbeam pipe sleeve is set to outside multifiber; first water blocking layer is set between optical fiber and microbeam pipe; second water blocking layer is wrapped in the outside of microbeam pipe; stainless protection layer is wrapped in the outside of the second water blocking layer, the package setting successively from inside to outside of stainless protection layer, enhancement layer and sheath.Miniature flexible armouring direct-burried provided by the invention, pipeline alleviate in the related technology the technical problems such as cable size is larger, flexility is poor with optical cable.
Description
Technical field
The present invention relates to technical field of communication equipment, more particularly, to a kind of miniature flexible armouring direct-burried, pipeline optical cable
And optical cable production technology.
Background technology
The rapid growth of data service accelerates the construction of Networks of Fiber Communications, fiber optic communication big, matter with message capacity
The advantages that amount height, performance stabilization, anti-electromagnetic interference and strong security, be the long-range solution for developing broadband access.Such as Fig. 1 institutes
Show, optical cable in the related technology is equipped with optical fiber 1, fiber paste 2, Loose tube 3, center reinforcemen 4, ointment 5, aluminium strip successively from inside to outside
Single mode or multimode fibre 1 are inserted in the interior filling waterproofing compound pine that high-modulus plastic is made by 6, interior shield 7, steel band 8 and outer shield 9
In casing 3, one, cable core center metal reinforcement, Loose tube 3 and gasket for packing are twisted into compact and rounding around center reinforcemen 4
Cable core, gap is filled with outer 6 longitudinal wrap of aluminium strip of the compound that blocks water and is extruded onto layer of polyethylene sheath, double plastic-coated steel bands 8 again in cable core
Layer of polyethylene sheath stranding is extruded after longitudinal wrap.
More and more wider with the universal range of fiber optic communication, the demand of user is more and more, and therefore, it is necessary to develop satisfactions to make
With the various products of environmental requirement.Outdoor optical cable requires higher mechanical property, such as tension, resistance to compression etc., water resistance
Also there is higher requirement, but its softness is poor, excessively high requirement is not done to fire-retardant and few cigarette characteristic yet.Traditional outdoor optical
Cable can meet these requirements, but cable size is larger, and flexility is poor.
Invention content
The purpose of the present invention is to provide a kind of miniature flexible armouring direct-burried, pipeline optical cables, to alleviate in the related technology
The technical problems such as cable size is larger, flexility is poor.
The following technical scheme is adopted to achieve the purpose of the present invention.
The invention of technical solution 1 be a kind of miniature flexible armouring direct-burried, pipeline optical cable, including：Optical fiber, first block water
Layer, microbeam pipe, the second water blocking layer, stainless protection layer, enhancement layer and sheath；
The quantity of the optical fiber is more, and the microbeam pipe sleeve is set to the more outer fibers, first water blocking layer
Between the optical fiber and the microbeam pipe, second water blocking layer is wrapped in the outside of the microbeam pipe, the stainless steel
Protective layer is wrapped in the outside of the second water blocking layer, the stainless protection layer, the enhancement layer and the sheath from inside to outside according to
Secondary package setting.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 2, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, second water blocking layer is made of dry type material water-proof material.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 3, in the miniature flexible armouring of technical solution 2
In direct-burried, pipeline optical cable, second water blocking layer is made of water blocking yarn.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 4, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, first water blocking layer is made of dry type material water-proof material.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 5, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, the stainless protection layer is made of stainless steel flexible hose.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 6, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, the enhancement layer is made of aramid fiber.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 7, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, the sheath is made of polythene material.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 8, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, the microbeam pipe is made of low smoke halogen-free flame-retardant polyolefin.
In addition, miniature flexible armouring direct-burried, the pipeline optical cable of technical solution 9, in the miniature flexible armouring of technical solution 1
In direct-burried, pipeline optical cable, the microbeam pipe is made of thermoplastic elastomer (TPE).
The invention of technical solution 10 be a kind of optical cable production technology, for production technology scheme 1 to technical solution 9 either one
Miniature flexible armouring direct-burried, pipeline optical cable described in case, including：Optical fiber coloring, micro-pipe process, hose armouring and sheath work
Sequence.
Compared in the prior art, the present invention has the advantages that.
The invention of technical solution 1 provides a kind of miniature flexible armouring direct-burried, pipeline optical cable, including：Optical fiber, the first resistance
Water layer, microbeam pipe, the second water blocking layer, stainless protection layer, enhancement layer and sheath；
The quantity of optical fiber is more, and microbeam pipe sleeve is set to outside multifiber, and the first water blocking layer is set to optical fiber and microbeam pipe
Between, the second water blocking layer is wrapped in the outside of microbeam pipe, and stainless protection layer is wrapped in the outside of the second water blocking layer, and stainless steel is protected
The package setting successively from inside to outside of sheath, enhancement layer and sheath.
Optical cable in the related technology includes more Loose tubes, and more Loose tubes are along the circumferentially distributed of center reinforcemen, more
The total amount of Loose tube inner fiber is the summation for the optical fiber that optical cable needs；Miniature flexible armouring direct-burried provided by the invention, pipeline are used
The optical fiber of needs is set in same microbeam pipe by optical cable, and identical in number of fibers, the sectional area of microbeam pipe is less than
The sectional area that more Loose tubes occupy, therefore, in the case where number of fibers is equal, miniature flexible armouring provided by the invention is straight
Bury, the diameter of pipeline optical cable is less than the diameter of optical cable in the related technology, reduce weight, reduce occupied space.
According to the invention of technical solution 2, the second water blocking layer is made of dry type material water-proof material.When the cable connection of factice for filling
It need to be cleared up, then must use detergent, cable core and optical fiber be cleaned, especially in operation, which both expended
Time pollutes bad border again, and for the material water-proof material of dry type, construction personnel can quickly and easily take out optical fiber without cleaning.
For welding step, installation prepares, and the time needed for cleaning can be obviously shortened.
According to the invention of technical solution 3, the second water blocking layer is made of water blocking yarn, meets the requirement of optical cable water-blocking.
According to the invention of technical solution 4, the first water blocking layer is made of dry type material water-proof material.Meet wanting for optical cable water-blocking performance
It asks.
According to the invention of technical solution 5, stainless protection layer is made of stainless steel flexible hose.Stainless steel flexible hose has resistance outer
The performance of boundary's mechanical damage and the performance for preventing soil corrosion, play a protective role to microbeam pipe, in addition, the phase of stainless steel flexible hose
Adjacent intersegmental gap is smaller, reduces the move distance close to each other or separate at adjacent segments end, reduces each segment and drives sheath
Movement, to prevent jacket shrinkage.
According to the invention of technical solution 6, enhancement layer is made of aramid fiber.Aramid fiber is set outside stainless steel flexible hose, optical cable can be made
With good tensile property.
According to the invention of technical solution 7, sheath is made of polythene material.Ensure that optical cable can be in buried and pipeline ring
It is applied in border.
According to the invention of technical solution 8, microbeam pipe is made of low smoke halogen-free flame-retardant polyolefin.Low smoke halogen-free flame-retardant polyolefin
The ageing-resistant performance of material is excellent, while having high flame resistance, can improve the anti-flammability of electric wire entirety.
According to the invention of technical solution 9, microbeam pipe is made of thermoplastic elastomer (TPE).In the case of can not be by auxiliary tool
Manually stripping microbeam manages and protects jacket layer without damaging optical fiber.
The invention of technical solution 10 provides a kind of optical cable production technology, appoints for production technology scheme 1 to technical solution 9
Miniature flexible armouring direct-burried, pipeline optical cable described in one scheme, including：Optical fiber coloring, micro-pipe process, hose armouring and shield
Cover process.The diameter of the optical cable of production is less than the diameter of optical cable in the related technology, reduces quality, reduces occupied space.
Description of the drawings
Technical solution in order to illustrate more clearly of the specific embodiment of the invention or in the related technology, below will be to specific
Attached drawing is briefly described needed in embodiment or description of Related Art, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic cross-section of optical cable in the related technology；
Fig. 2 is the schematic cross-section of miniature flexible armouring direct-burried provided in an embodiment of the present invention, pipeline optical cable；
Icon：1- optical fiber；2- fiber pastes；3- Loose tubes；4- center reinforcemens；5- ointment；6- aluminium strips；Shield in 7-；
8- steel bands；It is protected outside 9-；The first water blocking layers of 200-；300- microbeam pipes；The second water blocking layers of 400-；500- stainless steel protections
Layer；600- enhancement layers；700- sheaths.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Fig. 2 is the schematic cross-section of miniature flexible armouring direct-burried provided in an embodiment of the present invention, pipeline optical cable, such as Fig. 2
It is shown, miniature flexible armouring direct-burried provided in an embodiment of the present invention, pipeline optical cable, including：Optical fiber 1, the first water blocking layer 200,
Microbeam pipe 300, the second water blocking layer 400, stainless protection layer 500, enhancement layer 600 and sheath 700；
The quantity of optical fiber 1 is more, and microbeam pipe 300 is sheathed on outside multifiber 1, and the first water blocking layer 200 is set to optical fiber 1
Between microbeam pipe 300, the second water blocking layer 400 is wrapped in the outside of microbeam pipe 300, and stainless protection layer 500 is wrapped in second
The outside of water blocking layer 400, the package setting successively from inside to outside of stainless protection layer 500, enhancement layer 600 and sheath 700.
As shown in Fig. 2, multifiber 1 is located in same microbeam pipe 300, the first water blocking layer 200 is filled in optical fiber 1 and microbeam
Between pipe 300；Second water blocking layer 400 is wrapped in the outside of microbeam pipe 300, and the first water blocking layer 200 and the second water blocking layer 400 meet
The requirement of optical cable water-blocking performance；Stainless protection layer 500 is wrapped in the outside of the second water blocking layer 400, it is ensured that the crushing resistance of optical cable
Energy；Enhancement layer 600 is wrapped in the outside of stainless protection layer 500, makes optical cable that there is preferable tensile property, sheath 700 to wrap up
It in the outside of enhancement layer 600, plays a protective role to optical cable, it is ensured that optical cable can be applied in buried and pipeline environment.
Optical cable in the related technology includes more Loose tubes 3, and more Loose tubes 3 are more along the circumferentially distributed of center reinforcemen 4
The total amount of 3 inner fiber 1 of root Loose tube is the summation for the optical fiber 1 that optical cable needs；Miniature flexible armouring provided in an embodiment of the present invention
The optical fiber 1 of needs is set in same microbeam pipe 300 by direct-burried, pipeline optical cable, identical in 1 quantity of optical fiber, micro-
The sectional area of beam tube 300 is less than the sectional area that more Loose tubes 3 occupy, therefore, in the case where 1 quantity of optical fiber is equal, this hair
The diameter for the optical cable that bright embodiment provides is less than the diameter of optical cable in the related technology, reduces quality, reduces occupied space.
Fiber unit uses microbeam pipe 300, it is ensured that optical cable is with high light fibre density and in the case of larger capacity, still
It can guarantee smaller outer diameter and lighter optical cable weight.
Further, the second water blocking layer 400 is made of dry type material water-proof material.
It need to be cleared up when the cable connection of factice for filling 5, then must use detergent, cable core and optical fiber 1 are carried out clearly
Wash, especially in operation, which had not only expended the time but also had polluted bad border, for the material water-proof material of dry type, construction personnel without
Need to clear up quickly and easily to take out optical fiber 1.For welding step, installation prepares, the time needed for cleaning
It can be obviously shortened.
In some embodiments, the second water blocking layer 400 is made of water-proofing powder or water blocking yarn, and in the present embodiment, second blocks water
Layer 400 is made of water blocking yarn.While the requirement for meeting optical cable water-blocking, facilitate the production of optical cable.
Further, the first water blocking layer 200 is made of dry type material water-proof material.
It is blocked water using the material water-proof material of dry type, construction personnel can quickly and easily take out optical fiber 1 without cleaning.For
For welding step, installation prepares to shorten with the time needed for cleaning.
In some embodiments, the first water blocking layer 200 is made of water-proofing powder or water blocking yarn, and in the present embodiment, first blocks water
Layer 200 is made of water blocking yarn.While the requirement for meeting optical cable water-blocking, facilitate the production of optical cable.
Further, stainless protection layer 500 is made of stainless steel flexible hose.
Using stainless steel flexible hose armouring, it is ensured that optical cable has excellent lateral pressure resistant performance.Using unique " seamless " technique,
Gap between adjacent segment is smaller, can effectively prevent the contraction problem of sheath 700.Meanwhile hose armoured process can guarantee
Optical cable has good flexibility.
The performance that stainless steel flexible hose has the performance for resisting external mechanical damage and prevents soil corrosion, to microbeam pipe 300
It plays a protective role, in addition, the gap between the adjacent segment of stainless steel flexible hose is smaller, reduces the close to each other or remote of adjacent segments end
From move distance, reduce each segment and sheath 700 driven to move, to prevent sheath 700 from shrinking.
Further, enhancement layer 600 is made of aramid fiber.
Aramid fiber is a kind of novel high-tech synthetic fibers, has superhigh intensity, high-modulus, high temperature resistant, acid-fast alkali-proof, weight
Gently, the excellent performances such as insulation, anti-aging and life cycle length, it is anti-to be widely used in composite material, ballistic-resistant article, building materials, special type
Protect the fields such as clothes, electronic equipment.Aramid fiber is set outside stainless steel flexible hose, can make optical cable that there is good tensile property.
Further, sheath 700 is made of polythene material.
Polyethylene has excellent resistance to low temperature, and chemical stability is good, is resistant to the erosion of most of soda acids, under room temperature not
It is dissolved in common solvent, water imbibition is small, and electrical insulating property is excellent, plays a protective role to the internal structure of optical cable, it is ensured that optical cable can
It is applied in buried and pipeline environment.
In some embodiments, microbeam pipe 300 is made of low smoke halogen-free flame-retardant polyolefin.
The ageing-resistant performance of low-smoke halide-free fireproof composite polyolefine material is excellent, while having high flame resistance, can improve electricity
The anti-flammability of line entirety.
In other embodiments, microbeam pipe 300 is made of thermoplastic elastomer (TPE).
Thermoplastic elastomer (TPE) is also known as artificial rubber or synthetic rubber.Its product had both had the high-elastic of traditional cross-linking vulcanized rubber
Property, the every excellent properties of ageing-resistant and oil resistivity, to playing a protective role inside optical fiber 1, can not be by auxiliary tool the case where
700 layers of 300 sheath of lower manually stripping microbeam pipe is without damaging optical fiber 1.
Embodiment two
Embodiment two provides a kind of optical cable production technology, straight for miniature flexible armouring described in production example
It buries, pipeline optical cable, including：The coloring of optical fiber 1, micro-pipe process, hose armouring and 700 process of sheath.The diameter of the optical cable of production
Less than the diameter of optical cable in the related technology, quality is reduced, reduces occupied space.
The optical fiber of needs 1 is put in storage first, then optical fiber 1 is coloured, then carries out micro-pipe process, specifically
, it would be desirable to multifiber 1 penetrate microbeam pipe 300；Then hose armouring operation is carried out, stainless steel flexible hose is sheathed on second
The outside of water blocking layer 400；Then 700 process of sheath is carried out, sheath 700 is wrapped in the outside of enhancement layer 600, specifically, shield
Set 700 and enhancement layer 600 are press-connected by double-layer coextrusion electric wire extruder, can be ensured between sheath 700 and enhancement layer 600
Gapless avoids and mixes the impurity such as dust, moisture or gas between sheath 700 and enhancement layer 600 in process of production and shadow
The performance for ringing electric wire makes properties of optical fiber cable more stablize；Then the finished product of production is detected, qualified finished product is wrapped
Dress, storage, for needing the product of outbound to carry out outbound detection.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of miniature flexible armouring direct-burried, pipeline optical cable, which is characterized in that including：Optical fiber, the first water blocking layer, microbeam pipe,
Second water blocking layer, stainless protection layer, enhancement layer and sheath；
The quantity of the optical fiber is more, and the microbeam pipe sleeve is set to the more outer fibers, and first water blocking layer is set to
Between the optical fiber and the microbeam pipe, second water blocking layer is wrapped in the outside of the microbeam pipe, the stainless steel protection
Layer is wrapped in the outside of the second water blocking layer, and the stainless protection layer, the enhancement layer and the sheath wrap successively from inside to outside
Wrap up in setting.
2. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that described second blocks water
Layer is made of dry type material water-proof material.
3. miniature flexible armouring direct-burried according to claim 2, pipeline optical cable, which is characterized in that described second blocks water
Layer is made of water blocking yarn.
4. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that described first blocks water
Layer is made of dry type material water-proof material.
5. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that the stainless steel is protected
Sheath is made of stainless steel flexible hose.
6. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that the enhancement layer by
Aramid fiber is made.
7. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that the sheath is by gathering
Vinyl material is made.
8. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that the microbeam pipe by
Low smoke halogen-free flame-retardant polyolefin is made.
9. miniature flexible armouring direct-burried according to claim 1, pipeline optical cable, which is characterized in that the microbeam pipe by
Thermoplastic elastomer (TPE) is made.
10. a kind of optical cable production technology, for producing claim 1-9 any one of them miniature flexible armourings direct-burried, pipeline
With optical cable, which is characterized in that including：Optical fiber coloring, micro-pipe process, hose armouring and sheath process.
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| CN201810673981.4A CN108761688A (en) | 2018-06-26 | 2018-06-26 | A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology |
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| CN201810673981.4A CN108761688A (en) | 2018-06-26 | 2018-06-26 | A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269231A (en) * | 2020-09-24 | 2021-01-26 | 深圳市特发信息光网科技股份有限公司 | Anti-shrinkage cable, signal transmission system and cable production equipment |
| CN112415692A (en) * | 2020-12-16 | 2021-02-26 | 安徽长荣光纤光缆科技有限公司 | Novel armored multi-core flexible optical cable |
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Application publication date: 20181106 |