CN204679691U - Low-smoke non-halogen flame-retardant low friction butterfly leading in cable - Google Patents
Low-smoke non-halogen flame-retardant low friction butterfly leading in cable Download PDFInfo
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- CN204679691U CN204679691U CN201520300533.1U CN201520300533U CN204679691U CN 204679691 U CN204679691 U CN 204679691U CN 201520300533 U CN201520300533 U CN 201520300533U CN 204679691 U CN204679691 U CN 204679691U
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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
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Abstract
The utility model relates to low-smoke non-halogen flame-retardant low friction butterfly leading in cable and belong to optical communication manufacturing technology field, be a kind of introducing and wiring optical cable of suitable Optical Access Network use, adapt to the laid condition such as outdoor built on stilts introducing, pipeline introducing, adherent wiring.Be made up of oversheath, colored optical fiber, reinforcement, colored optical fiber both sides are provided with reinforcement, and colored optical fiber and reinforcement are encapsulated in oversheath, and oversheath is provided with arc surface, register one's residence, indoor reduce friction force when laying in engineering construction.Oversheath one end is provided with enhancing messenger wire.It is little that low-smoke non-halogen flame-retardant low friction butterfly leading in cable has skin-friction coefficient; Material Halogen, low cigarette, nontoxic, and excellent fireproof performance is specially adapted to register one's residence in FTTH engineering construction, indoor are laid, and saves the engineering time, reduces cost of registering one's residence.
Description
Technical field
The butterfly leading in cable that two structure that what the utility model low-smoke non-halogen flame-retardant low friction butterfly leading in cable related to is, color are various, it possess common butterfly leading in cable to be difficult to and excellent surface frictional behaviour, and by using special enhancing messenger wire, reach the object that optical cable kink can not occur when almost cannot to there is slippage, construction between itself and sheath, while its excellent workability of guarantee, also take into account end face to block water, be domestic and international densely inhabited district register one's residence wiring first-selected product.
Background technology
Along with the productive life of people is unprecedentedly surging for the consumption demand of information, Fibre Optical Communication Technology is applied on a large scale in every field, and the continuous decline of soft exchange cost, copper cable price and copper wire access rise toward O&M cost, and size carrier network is at a high speed towards the network transformation taking broadband as feature.Along with the appearance of more and more high bandwidth business, FTTH/FTTB (fiber entering household, optical fiber enter building) has become the first-selection of all multi-operators.Along with informationalized deep, bring the very big demand that access optical cable is increased progressively gradually.
In FTTH builds, the most common use is exactly butterfly leading in cable, for many years, the construction separating property excellent by feat of it and small and exquisite size and become one of access optical cable that lot of domestic and foreign telecom operators favor the most, simultaneously, in many developing countries, butterfly leading in cable also just progressively becomes the KEY PRODUCTS of Optical Access Network final stage.
Carry out registering one's residence lay time, along with construction environment is more and more limited to, the lifting of operating efficiency, traditional butterfly leading in cable in use exposes many defects gradually, especially be embodied in the communication line improvement project of old urban area, tradition butterfly leading in cable cannot pass through the underground/aerial pipes being laid with many light/cables, before this, domestic vendors is had to develop the indoor butterfly leading in cable of the low friction of small size based on low friction PE sheath material, this kind of optical cable can increase its pipeline to a certain extent through rate, and reduce one end tractive force, but, because the PE strength of materials is far longer than LSZH(low-smoke halogen-free flame retardant material), cause the simple and easy stripping loses in performance as a butterfly leading in cable spotlight itself, separating force increases to about 20N by less than 10N, even need to be unlikely to cause direction of delaminate to depart from reinforcement because force value is excessive when stripping by instrument guarantee exposed, in addition, butterfly leading in cable (being even known as the material of the fire-retardant PE) structure that PE material is made all cannot pass through the single vertical burning test that IEC60332-1-2 (International Electrotechnical Commission) specifies, for inside cable, fire resistance considers its one of major criterion whether being suitable in indoor use.
The surperficial low friction performance of butterfly leading in cable can be verified by the sliding friction test of surface in contact direct between many optical cables of the same type, lot of materials test shows, direct surface in contact friction factor between many type butterfly leading in cables effectively can be reduced to less than 0.25 by many moneys low-smoke non-halogen flame-retardant low friction butterfly leading in cable that the utility model relates to, and the direct surface in contact friction factor between traditional butterfly leading in cable is up to more than 0.4.
In addition, it is attractive in appearance that outdoor overhead type butterfly leading in cable normally used black system also more and more affects town house inside and outside, and the outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable that the utility model relates under the prerequisite not affecting surface friction property and material low-smoke non-halogen flame-retardant performance, design grey and black two kinds can be selected for user.
Summary of the invention
The utility model object is for the weak point of above-mentioned common butterfly leading in cable when constructing and use, a kind of low-smoke non-halogen flame-retardant low friction butterfly leading in cable is provided, indoor, outdoor butterfly leading in cable can be made into, and three kinds of colors (white room is related under the prerequisite ensureing its low-friction coefficient, the characteristic such as fire-retardant, outdoor grey/black), the access optical cable in the utility model possesses that friction factor is minimum, low-smoke non-halogen flame-retardant is nontoxic, burning time a series of structure and material advantages such as the amount of being fuming is little; And retain traditional butterfly leading in cable easily construct peel off characteristic; By using special steel wire to be used as suspention line, effectively avoid in the construction line-putting process because optical cable kink, clot etc. cause the cable body of below messenger wire too to deflect and the optical fiber that fractures.
Low-smoke non-halogen flame-retardant low friction butterfly leading in cable takes following technical scheme to realize:
Low-smoke non-halogen flame-retardant low friction butterfly leading in cable is made up of oversheath, colored optical fiber, reinforcement, and colored optical fiber both sides are provided with reinforcement, and colored optical fiber and reinforcement are encapsulated in oversheath, and oversheath is set to long waist shaped.Oversheath is provided with arc surface, registers one's residence, indoor can reduce friction force when laying in engineering construction.
Oversheath one end is provided with enhancing messenger wire, outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable can be made.Indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable can not be provided with enhancing messenger wire.
Described oversheath adopts low friction type thermoplastic low-smoke halide-free polyolefin flame-retardant protective cover material.
The method for making brief introduction of low-smoke non-halogen flame-retardant low friction butterfly leading in cable is as follows: (indoor type is without enhancing messenger wire)
Messenger wire (steel wire) will be strengthened install on special pay off rack, and set laying tension and draw to the outlet of separated time mould stand-by; Installed on pay off rack by two optical cable reinforcements (can be metallic steel silk, or nonmetal FRP), set reinforcement laying tension, along reinforcement tracked by guide wheel to separated time mould, outlet is fixing stand-by; Colored optical fiber is installed on request in optical fiber pay-off rack, and sets optical fiber laying tension, drawn to the outlet of separated time mould along optical fiber unwrapping wire guide wheel, fix stand-by; Select suitable butterfly leading in cable die assembly good; Enhancing messenger wire and two reinforcements are combined through separated time mould, through baking oven, through mould, and opens extruding machine and carry out extrusion molding; Cable jacket slowly to be drawn and around on wheeled draw-off equipment; By colored optical fiber through separated time mould and baking oven, import core rod; Open baking oven and set temperature; Regulate die sleeve position and extrusion molding size, make the inner strengthening core of optical cable, optical fiber can be evenly distributed, not core shift, optical fiber elasticity (requires stripping 20cm sheath on 50cm length optical cable, do not use that any instrument is free-hand can not pull optical fiber), cable outer diameter meets the requirements (indoor type external diameter requires that, for 1.6*2.0 ± 0.1mm, outdoor version external diameter requires as 2.0*5.3 ± 0.2mm); To the optical cable of technological requirement be met around upper line storage wheel, and be pulled in take-up stand place and coil take-up.
Low-smoke non-halogen flame-retardant low friction butterfly leading in cable beneficial effect:
Skin-friction coefficient is little, is beneficial to very much various pipeline and introduces reduction resistance when laying, improve operating efficiency;
Material Halogen, low cigarette, nontoxic, and excellent fireproof performance, be applicable to the indoor access engineering of every FTTH;
Outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable can effectively prevent from causing cable body and messenger wire to be twisted together in work progress because unwrapping wire mode is improper, and then the decay increase caused, insertion loss increase even disconnected fine;
Outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable end face block-water performance and uv-resistant excellent performance, very suitable outdoor access occasion;
Perfect compatible traditional butterfly leading in cable quick coupler, convenient and swift;
The utility model relates to the low-smoke non-halogen flame-retardant low friction butterfly leading in cable of two kinds of structures (indoor/outdoor), while opening up low friction performance, remain the advantages such as traditional butterfly leading in cable structure is simple, construction stripping is simple and easy, low-smoke non-halogen flame-retardant, be specially adapted to register one's residence in FTTH engineering construction, indoor lay, save the engineering time, reduce cost of registering one's residence.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable schematic diagram.
Fig. 2 indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable schematic diagram.
Embodiment
Be described further the utility model below in conjunction with accompanying drawing, the protection domain of this patent is not limited to the following stated.
With reference to accompanying drawing 1 ~ 2, low-smoke non-halogen flame-retardant low friction butterfly leading in cable is made up of oversheath 1, colored optical fiber 2, reinforcement 3, colored optical fiber 2 both sides are provided with reinforcement 3, and colored optical fiber 2 and reinforcement 3 are encapsulated in oversheath 1, and oversheath 1 is set to long waist shaped.Oversheath 1 is provided with arc surface, registers one's residence, indoor can reduce friction force when laying in engineering construction.
Be provided with in oversheath 1 one end and strengthen messenger wire 4, outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable can be made.Indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable can not be provided with and strengthen messenger wire 4.
Outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable is by oversheath 1, colored optical fiber 2, reinforcement 3 and strengthen messenger wire 4(steel wire) form, and indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable is made up of oversheath 1, colored optical fiber 2 and reinforcement 3, do not strengthen suspention line compared with outdoor version.
Described oversheath 1 adopts low friction type thermoplastic low-smoke halide-free polyolefin flame-retardant protective cover material.
Described colored optical fiber 2 is 1 ~ 12 core.
Described low-smoke non-halogen flame-retardant low friction butterfly leading in cable, between many these type optical cables, direct surface in contact friction factor reaches less than 0.25, ensures that the flame-retarding characteristic of optical cable itself meets IEC(international electrical engineering standard under this prerequisite) burning of the single vertical that requires, the low smoke density that burns meet the smoke density that IEC requires.Low-smoke non-halogen flame-retardant described in IEC low friction butterfly leading in cable, is meeting under low friction, fire-retardant, smoke density prerequisite, have comprise grey, black, white three kinds of color indoor/outdoor type optical cables can provide.
Described low-smoke non-halogen flame-retardant low friction butterfly leading in cable, for outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable, adopt and strengthen the object that messenger wire steel wire reaches tight bond between itself and sheath, and overall optical cable end face blocks water, meet the water penetration test that IEC requires.
Described low-smoke non-halogen flame-retardant low friction butterfly leading in cable, no matter indoor or outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable structure all can produce 1 ~ 12 core optical cable, the corresponding increase of its overall cable size.
For outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable, strengthen messenger wire 4 and adopt steel wire, the effect of sheath and steel wire tight bond can be reached when this Steel Wire Surface extrusion molding sheath, compared with conventional chamber external form butterfly leading in cable, strengthen between messenger wire steel wire and sheath and slippage cannot occur at all, effectively prevent the cable body caused due to misoperation when the construction line-putting to divide and twist together with messenger section, and then cause optical fiber attenuation increase, splicing loss increase, serious even causes disconnected fine problem.
For outdoor version and indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable, reinforcement 3 generally can select metal mold (steel wire), select this kind of reinforcement general it is considered that optical cable (outdoor version is then divide for cable body) high at bending wiring environment mal-condition Tensile strength, cannot fracture, strong to fiber optic protection ability; When selecting non-metal type reinforcement (FRP class), general it is considered that optical cable under indoor general environment during bending wiring pliability high, bending after rebound resilience good.
For outdoor version and indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable, colored optical fiber 2 can be generally 1 core ~ 12 core, corresponding overall cable size also can increase, for FTTH wiring optical cable, owing to considering many bending occasions, so what generally select is bend-insensitive class single-mode fiber.
For outdoor version and indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable, oversheath 1 is the key project affecting the overall low friction performance of optical cable, lot of experiments demonstration shows, same sheath material changes color rear surface friction factor can there is marked change, and the surface friction property of sheath material and its fire resistance are difficult to ensure simultaneously.Through scheduling to last nearly 1 year research and development, have developed grey, black and white three kinds of color sheath materials, and by a large amount of testing and verifications.
Low-smoke non-halogen flame-retardant low friction butterfly leading in cable method for making is as follows: (indoor type is without enhancing messenger wire)
Messenger wire (steel wire) will be strengthened install on special pay off rack, and set laying tension and draw to the outlet of separated time mould stand-by; Installed on pay off rack by two optical cable reinforcements (can be metallic steel silk, or nonmetal FRP), set reinforcement laying tension, along reinforcement tracked by guide wheel to separated time mould, outlet is fixing stand-by; Colored optical fiber is installed on request in optical fiber pay-off rack, and sets optical fiber laying tension, drawn to the outlet of separated time mould along optical fiber unwrapping wire guide wheel, fix stand-by; Select suitable butterfly leading in cable die assembly good; Messenger wire, two reinforcements and colored optical fiber will be strengthened through separated time mould, and through baking oven, through mould, and open extruding machine and carry out extrusion molding; Optical cable slowly to be drawn and around on wheeled draw-off equipment; Open baking oven and set temperature; Regulate die sleeve position and extrusion molding size, make the inner strengthening core of optical cable, optical fiber can be evenly distributed, not core shift, optical fiber elasticity (requires stripping 20cm sheath on 50cm length optical cable, do not use that any instrument is free-hand can not pull optical fiber), cable outer diameter meets the requirements (indoor type external diameter requires that, for 1.6*2.0 ± 0.1mm, outdoor version external diameter requires as 2.0*5.3 ± 0.2mm); To the optical cable of technological requirement be met around upper line storage wheel, and be pulled in take-up stand place and coil take-up.
example
The method for making of low-smoke non-halogen flame-retardant low friction butterfly leading in cable, sincerely illustrates for 1 core indoor type low-smoke non-halogen flame-retardant low friction butterfly leading in cable.
1, optical cable reinforcement is installed on pay off rack, adjust its laying tension to about 10N, it is involved along reinforcement guide wheel, fix stand-by through baking oven to separated time mould place;
2, colored optical fiber is loaded onto optical fiber pay-off rack, detect and its laying tension is set to about 70g, it is involved along optical fiber pay-off rack upper block, fixing stand-by through baking oven to separated time mould place;
3, select 1.6*2.0 size optical cable extruded mould to install, open first segment tank hot water, arrange hot water temperature 20 DEG C, follow-up tank is normal temperature cold water;
4, by reinforcement and optical fiber through mould, open extruding machine and carry out extrusion molding sheath, optical cable slowly to be drawn and around on wheeled draw-off equipment;
5, open baking oven, bake out temperature 200 DEG C is set;
6, die sleeve position and extrusion molding size is regulated, make the inner strengthening core of optical cable, optical fiber can be evenly distributed, not core shift, optical fiber elasticity (require stripping 20cm sheath on 50cm length optical cable, do not use any instrument is free-hand can not pull optical fiber), cable outer diameter meet the requirements 1.6*2.0 ± 0.1mm;
7, will intact optical cable be regulated above to be pulled to take-up stand place, and upper dish take-up.
The utility model relates to low-smoke non-halogen flame-retardant low friction butterfly leading in cable and belong to optical communication manufacturing technology field, be a kind of introducing and wiring optical cable of suitable Optical Access Network use, adapt to the laid condition such as outdoor built on stilts introducing, pipeline introducing, adherent wiring; It is little that the type optical cable has skin-friction coefficient; Material Halogen, low cigarette, nontoxic, and excellent fireproof performance; Outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable effectively can prevent from causing because unwrapping wire mode is improper in work progress that cable body and messenger wire are twisted together, end face blocks water, uv-resistant; The advantages such as perfect compatible traditional butterfly leading in cable quick coupler, while opening up low friction performance, remain the advantages such as traditional butterfly leading in cable structure is simple, construction stripping is simple and easy, low-smoke non-halogen flame-retardant, be specially adapted to register one's residence in FTTH engineering construction, indoor lay, save the engineering time, reduce cost of registering one's residence.
Claims (8)
1. a low-smoke non-halogen flame-retardant low friction butterfly leading in cable, it is characterized in that: be made up of oversheath, colored optical fiber, reinforcement, colored optical fiber both sides are provided with reinforcement, colored optical fiber and reinforcement are encapsulated in oversheath, oversheath is provided with arc surface, registers one's residence, indoor reduce friction force when laying in engineering construction.
2. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, is characterized in that: oversheath one end is provided with enhancing messenger wire.
3. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, is characterized in that: oversheath is set to long waist shaped.
4. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, is characterized in that: described colored optical fiber is 1 ~ 12 core.
5. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, it is characterized in that: between many these type optical cables, direct surface in contact friction factor reaches less than 0.25, under this prerequisite, ensure that the flame-retarding characteristic of optical cable itself meets the single vertical burning of IEC requirement, the low smoke density that burns meets the smoke density that IEC requires.
6. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, is characterized in that: meeting under low friction, fire-retardant, smoke density prerequisite, has the three kinds of color indoor/outdoor type optical cables comprising grey, black, white.
7. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, it is characterized in that: for outdoor version low-smoke non-halogen flame-retardant low friction butterfly leading in cable, adopt and strengthen the object that messenger wire steel wire reaches tight bond between itself and sheath, and overall optical cable end face blocks water, meet the water penetration test that IEC requires.
8. low-smoke non-halogen flame-retardant according to claim 1 low friction butterfly leading in cable, is characterized in that: described oversheath adopts low friction type thermoplastic low-smoke halide-free polyolefin flame-retardant protective cover material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300533.1U CN204679691U (en) | 2015-05-12 | 2015-05-12 | Low-smoke non-halogen flame-retardant low friction butterfly leading in cable |
| PCT/CN2015/088203 WO2016179925A1 (en) | 2015-05-12 | 2015-08-27 | Low-smoke halogen-free flame-retardant low-friction butterfly-shaped access optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520300533.1U CN204679691U (en) | 2015-05-12 | 2015-05-12 | Low-smoke non-halogen flame-retardant low friction butterfly leading in cable |
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| CN204679691U true CN204679691U (en) | 2015-09-30 |
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| WO (1) | WO2016179925A1 (en) |
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| CN105866908A (en) * | 2016-06-08 | 2016-08-17 | 沈阳亨通光通信有限公司 | Side-slot-reinforced leading-in optical cable and production process |
| CN106842455A (en) * | 2017-03-23 | 2017-06-13 | 烽火通信科技股份有限公司 | A kind of MPO optical cables comprising optical cable subelement and preparation method thereof |
| CN107329218A (en) * | 2017-06-20 | 2017-11-07 | 江苏中天科技股份有限公司 | A kind of high-definition multimedia transmission optoelectronic composite cable and preparation method thereof |
| CN107807427A (en) * | 2017-11-10 | 2018-03-16 | 山东太平洋光纤光缆有限公司 | A kind of all dielectric self-supporting light flexible dry type branched cable and its manufacture method |
| CN107843961A (en) * | 2017-12-14 | 2018-03-27 | 江苏亨通光电股份有限公司 | A kind of microbeam pipe butterfly leading in cable |
| CN107894638A (en) * | 2017-12-14 | 2018-04-10 | 江苏亨通光电股份有限公司 | A kind of anti-biological closed type butterfly leading in cable |
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| CN110007414A (en) * | 2019-05-07 | 2019-07-12 | 成都亨通光通信有限公司 | Light-duty cell is registered one's residence leading in cable |
| CN111650704A (en) * | 2020-04-29 | 2020-09-11 | 成都亨通光通信有限公司 | Indoor and outdoor four-core butterfly-shaped optical cable and process flow thereof |
| CN114296195A (en) * | 2021-12-30 | 2022-04-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
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| JP2010152340A (en) * | 2008-11-18 | 2010-07-08 | Fujikura Ltd | Optical fiber cable and resin composition used for the same |
| JP5320088B2 (en) * | 2009-01-28 | 2013-10-23 | 株式会社フジクラ | Optical fiber cable laying method |
| CN201716441U (en) * | 2010-04-20 | 2011-01-19 | 深圳市特发信息光网科技股份有限公司 | In-house optical cable with small friction force, abrasion resistance and easy tearing |
| CN201845113U (en) * | 2010-09-28 | 2011-05-25 | 成都康宁光缆有限公司 | Circular fiber-to-home indoor optical cable |
| CN202093216U (en) * | 2011-06-07 | 2011-12-28 | 河南省通信电缆有限公司 | Indoor optical cable |
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2015
- 2015-05-12 CN CN201520300533.1U patent/CN204679691U/en active Active
- 2015-08-27 WO PCT/CN2015/088203 patent/WO2016179925A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105866908A (en) * | 2016-06-08 | 2016-08-17 | 沈阳亨通光通信有限公司 | Side-slot-reinforced leading-in optical cable and production process |
| CN109752809A (en) * | 2016-07-15 | 2019-05-14 | 杭州富通通信技术股份有限公司 | Butterfly cable |
| CN106842455A (en) * | 2017-03-23 | 2017-06-13 | 烽火通信科技股份有限公司 | A kind of MPO optical cables comprising optical cable subelement and preparation method thereof |
| CN107329218A (en) * | 2017-06-20 | 2017-11-07 | 江苏中天科技股份有限公司 | A kind of high-definition multimedia transmission optoelectronic composite cable and preparation method thereof |
| CN107807427A (en) * | 2017-11-10 | 2018-03-16 | 山东太平洋光纤光缆有限公司 | A kind of all dielectric self-supporting light flexible dry type branched cable and its manufacture method |
| CN107843961A (en) * | 2017-12-14 | 2018-03-27 | 江苏亨通光电股份有限公司 | A kind of microbeam pipe butterfly leading in cable |
| CN107894638A (en) * | 2017-12-14 | 2018-04-10 | 江苏亨通光电股份有限公司 | A kind of anti-biological closed type butterfly leading in cable |
| CN110007414A (en) * | 2019-05-07 | 2019-07-12 | 成都亨通光通信有限公司 | Light-duty cell is registered one's residence leading in cable |
| CN111650704A (en) * | 2020-04-29 | 2020-09-11 | 成都亨通光通信有限公司 | Indoor and outdoor four-core butterfly-shaped optical cable and process flow thereof |
| CN114296195A (en) * | 2021-12-30 | 2022-04-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
| CN114296195B (en) * | 2021-12-30 | 2024-03-08 | 江苏俊知光电通信有限公司 | Low-friction butterfly-shaped optical cable and preparation method thereof |
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| Publication number | Publication date |
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| WO2016179925A1 (en) | 2016-11-17 |
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