CN110221392A - One kind resisting micro-bend metal pipe optical cable - Google Patents
One kind resisting micro-bend metal pipe optical cable Download PDFInfo
- Publication number
- CN110221392A CN110221392A CN201910517796.0A CN201910517796A CN110221392A CN 110221392 A CN110221392 A CN 110221392A CN 201910517796 A CN201910517796 A CN 201910517796A CN 110221392 A CN110221392 A CN 110221392A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel tube
- silica gel
- optical cable
- optical fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 239000002184 metal Substances 0.000 title claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 67
- 239000010935 stainless steel Substances 0.000 claims abstract description 46
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000741 silica gel Substances 0.000 claims abstract description 26
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002674 ointment Substances 0.000 claims abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 241000699666 Mus <mouse, genus> Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses one kind to resist micro-bend metal pipe optical cable, including optical fiber, stainless steel tube, layer of silica gel, stainless steel wire armor and outer jacket；In the stainless steel tube, the optical fiber and the stainless steel tube are loose tube structure and are filled with ointment therebetween the optical fiber built-in；The stainless steel tube is wrapped with the layer of silica gel；The layer of silica gel is wrapped with the stainless steel wire armor；The stainless steel wire armor is wrapped with the outer jacket.Two excellent properties of stainless steel tube and silica gel are superimposed by the present invention, so that the cable configuration has stainless steel tube and the respective advantage of silica gel, the performance of two kinds of materials is given full play to, so that the present invention can be used for emergency first-aid repair, sensing, security protection, aviation, naval vessel, field operation and other particular/special requirement occasions.
Description
Technical field
The present invention relates to special industry technical field of optical fiber communication, more particularly to one kind resists micro-bend metal tube light
Cable.
Background technique
Fibre Optical Communication Technology has had been applied to all trades and professions, different application environments to properties of optical fiber cable propose it is various not
Same requirement.But present various types of optical cables, general all larger, the fixed light of common plastics such as outer diameter, quality, bending radius
Fine outer diameter is generally 0.2mm-0.25mm, if do not protected, can have the shortcomings such as intensity difference, service life be short, some
Occasion cannot be applied at all.
Currently, although people are protected optical cable by the various prior arts and material, cable outer diameter, quality,
Bending radius and mechanical performance, environmental resistance etc. are in certain special occasions or unsatisfactory.Micro optical cable at present
Usually there are several structures, distinguishing from material includes: nonmetallic materials and metal material.Wherein, nonmetallic materials are (as schemed
1) generally use tight tube fiber for light unit, the nonmetallic materials such as additional aramid yarn or glass fibre are as reinforcing element, then
Or Sheathed metal, or directly squeeze out outer jacket outside, this structure outer diameter is big, and environmental resistance is poor, lateral pressure resistant ability also compared with
Difference is generally used for interior.Metal material (such as Fig. 2), light unit be stainless steel tube optical fiber structure, additional stainless steel wire armouring,
It is extruded on the outside outer jacket again, the structure optical cable is flexible poor, and counter-bending and microbend ability is poor, is unable to satisfy the examination of optical cable knot
It tests.
Therefore, a kind of new structural optical cable is developed, above-mentioned defect in the prior art can be overcome, be ability
A field technique personnel problem urgently to be resolved.
Summary of the invention
In view of this, the present invention utilizes stainless loose unjacketed optical fiber metal Manifold technology for the defect for overcoming the above-mentioned prior art
It is combined with the respective advantage of silica gel structure, has devised one kind and resist micro-bend metal pipe optical cable.
To achieve the goals above, the present invention adopts the following technical scheme:
One kind resisting micro-bend metal pipe optical cable, including optical fiber, stainless steel tube, layer of silica gel, stainless steel wire armor and outer jacket；
In the stainless steel tube, the optical fiber is loose tube structure with the stainless steel tube and is filled with therebetween the optical fiber built-in
Ointment；The stainless steel tube is wrapped with the layer of silica gel；The layer of silica gel is wrapped with the stainless steel wire armor；It is described
Stainless steel wire armor is wrapped with the outer jacket.
The present invention can be such that the optical fiber of the inside is protected, protect it from fortune by adding ointment and stainless steel tube outside optical fiber
Row, installation and the influence of environment, especially allow optical fiber can moisture-proof and anti-extrusion.
The present invention has further wrapped up one layer of silica gel outside stainless steel tube, because silica gel is with preferable heat-resisting, cold-resistant and resistance to
Hou Xing, and certain buffer function can be played, it is integrally formed with stainless steel tube, can greatly protect stainless steel tube, improved not
Become rusty steel pipe bending resistance, while improving the environmental resistance of stainless steel tube.
The present invention outside layer of silica gel by wrapping up stainless steel wire armor, so that the optical cable is provided with the spy of good mechanical property
Point, specific manifestation are as follows: tension and compression strength enhancing can prevent biting for the animals such as mouse, and then also just extend optical cable
Service life.
The present invention has been further added by one layer of outer jacket outside stainless steel wire armor, and the effect of outer jacket is protection stainless steel wire
Armor prevents stainless steel wire armor from being damaged in laid processes, and prevents stainless steel wire armor in operational process
In corroded, while outer jacket also has certain waterproof ability.
Based on the above technical solution, the present invention can also make following improvement:
Preferably, the layer of silica gel is bonding on the outer wall of the stainless steel tube and fits closely into the stainless steel tube
One, so just can better buffer protection stainless steel tube, raising stainless steel tube bending resistance.
Preferably, the outer jacket is high molecular material outer jacket.
Preferably, the outer jacket is made using PU, PE, PA, PF or LSZH material.
Outer jacket is made of high molecular material, excellent mechanical property and ageing-resistant performance etc. is made it have, one
Within the scope of fixed bending radius, fibercuts after stainless steel tube bending can be prevented, plays the work of protection optical cable, reduction coefficient of friction etc.
With.
Preferably, the external diametrical extent of the optical fiber is 0.2-0.25mm.
Preferably, the external diametrical extent of the stainless steel tube is 0.6-0.9mm.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides one kind to resist micro-bend metal
Pipe optical cable, the cable configuration are binded outside stainless steel tube loose tube fiber using silica gel, and the two fits closely integrally, have resistance to ring
Border performance is excellent, buffer protection stainless steel tube, improves the features such as stainless steel tube bending resistance.Stainless steel tube and two, silica gel it is excellent
Performance superposition has given full play to the performance of two kinds of materials so that the cable configuration has stainless steel tube and the respective advantage of silica gel,
So that the present invention can be used for emergency first-aid repair, sensing, security protection, aviation, naval vessel, field operation and other particular/special requirement occasions.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is existing cable configuration figure one.
Fig. 2 attached drawing is existing cable configuration figure two.
Fig. 3 attached drawing is a kind of structure chart for resisting micro-bend metal pipe optical cable of the present invention.
Wherein, in figure,
1, optical fiber, 2, stainless steel tube, 3, layer of silica gel, 4, stainless steel wire armor, 5, outer jacket, 6, nonmetallic reinforcement member
Part.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment 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 description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting 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
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
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:
As shown in figure 3, the embodiment of the invention discloses one kind to resist micro-bend metal pipe optical cable, optical fiber 1, stainless steel are specifically included
Pipe 2, layer of silica gel 3, stainless steel wire armor 4 and outer jacket 5, wherein
One or more optical fiber 1 are built in stainless steel tube 2, and 1 entire outer diameter range of optical fiber is 0.2-0.25mm, stainless
2 external diametrical extent of steel pipe is 0.6-0.9mm, and optical fiber 1 and stainless steel tube 2 are loose tube structure and are filled with ointment therebetween, makes light
Fibre 1 can be movable in pipe, influences from extruding etc., while ointment also acts the effect of waterproof.
Stainless steel tube 2 is wrapped with layer of silica gel 3, which is bonding on the outer wall of stainless steel tube 2 and and stainless steel tube
2 do not fit closely integral, and silica gel has preferable heat-resisting, cold-resistant and weatherability, and can play certain buffer function, and not
Rust steel pipe 2 is integrally formed, and stainless steel tube 2 can be protected injury-free, is greatly improved 2 bending resistance of stainless steel tube, is allowed simultaneously
Stainless steel tube 2 is provided with excellent environmental resistance.
It is enclosed with stainless steel wire armor 4 (stainless steel wire braiding layer) again outside layer of silica gel 3, to enhance the tension of optical cable and resist
Compressive Strength, erosion prevention, anti-bite ability etc..
Stainless steel wire armor 4 is wrapped with outer jacket 5, which is made using high molecular material, preferably adopts
It is made of PU, PE, PA, PF or LSZH material, which can prevent 2 folding of stainless steel tube within the scope of certain bending radius
Optical fiber 1 is broken after curved, plays a part of to protect optical cable, reduce coefficient of friction etc..
One kind of the present invention resists micro-bend metal pipe optical cable using 0.2-0.25mm optical fiber 1, and outer cladding 0.6-0.9mm outer diameter is not
Based on 2 pine of steel pipe of becoming rusty covers oil-filled light unit, additional one layer of silica gel directly binds on stainless steel tube 2, then in layer of silica gel 3
Twisted stainless steel wire (braiding) is used as armor, forms the complete body of light unit, finally according to actual use occasion, in appearance
Face extrudes PE/PA/LSZH/PU/PF or other high molecular materials as outer jacket 5.Optical cable using the above structure not only has
Stronger environmental resistance and lateral pressure resistant ability are not easy to be damaged because of the influence of external environment, and its also have it is stronger
Flexibility, counter-bending and microbend ability is also very strong, can sufficiently meet the test of optical cable knot, useful application value with higher
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. one kind resists micro-bend metal pipe optical cable, which is characterized in that including optical fiber (1), stainless steel tube (2), layer of silica gel (3), stainless
Steel wire armor layer (4) and outer jacket (5)；The optical fiber (1) is built in the stainless steel tube (2), the optical fiber (1) with it is described
Stainless steel tube (2) is loose tube structure and is filled with ointment therebetween；The stainless steel tube (2) is wrapped with the layer of silica gel
(3)；The layer of silica gel (3) is wrapped with the stainless steel wire armor (4)；The stainless steel wire armor (4) is wrapped with
The outer jacket (5).
2. one kind according to claim 1 resists micro-bend metal pipe optical cable, it is characterised in that: the layer of silica gel (3) is bonding on
It is fitted closely integrally on the outer wall of the stainless steel tube (2) and with the stainless steel tube (2).
3. one kind according to claim 1 resists micro-bend metal pipe optical cable, it is characterised in that: the outer jacket (5) is high score
Sub- material outer jacket.
4. one kind according to claim 3 resists micro-bend metal pipe optical cable, it is characterised in that: the outer jacket (5) using PU,
PE, PA, PF or LSZH material are made.
5. one kind according to claim 1 resists micro-bend metal pipe optical cable, it is characterised in that: the outer diameter model of the optical fiber (1)
It encloses for 0.2-0.25mm.
6. one kind according to claim 1 resists micro-bend metal pipe optical cable, it is characterised in that: outside the stainless steel tube (2)
Diameter range is 0.6-0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517796.0A CN110221392A (en) | 2019-06-14 | 2019-06-14 | One kind resisting micro-bend metal pipe optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517796.0A CN110221392A (en) | 2019-06-14 | 2019-06-14 | One kind resisting micro-bend metal pipe optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110221392A true CN110221392A (en) | 2019-09-10 |
Family
ID=67817212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910517796.0A Pending CN110221392A (en) | 2019-06-14 | 2019-06-14 | One kind resisting micro-bend metal pipe optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110221392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397737A (en) * | 2022-01-28 | 2022-04-26 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Aerospace optical cable assembly bending-resistant reinforcing method, optical cable assembly and verification method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2991712B1 (en) * | 1999-02-09 | 1999-12-20 | 株式会社岡崎製作所 | High temperature signal cable |
| CN201732191U (en) * | 2010-04-02 | 2011-02-02 | 东捷光电科技(苏州)有限公司 | Flexible type fully-armored waterproof tail cable |
| CN103135189A (en) * | 2013-03-14 | 2013-06-05 | 东捷光电科技(苏州)有限公司 | Armored optical cable and splitter assembly of armored optical cable for machine room |
| CN204832610U (en) * | 2015-07-22 | 2015-12-02 | 成都亨通光通信有限公司 | Flexible steel tube armour optical cable of 8 styles of calligraphy in two cores |
| CN204883003U (en) * | 2015-09-02 | 2015-12-16 | 深圳市三园科技有限公司 | Miniature optical cable of steel wire nonrust steel pipe of transposition |
| CN206711650U (en) * | 2017-05-24 | 2017-12-05 | 福建南新电缆有限公司 | A kind of strong cable of corrosion resistance |
| CN107861211A (en) * | 2017-12-21 | 2018-03-30 | 江苏中天科技股份有限公司 | A kind of heat distribution pipeline monitors sensing optic cable |
| CN207488580U (en) * | 2017-12-01 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of double jacketed cables of stainless steel tube wire armoring |
| CN210090752U (en) * | 2019-06-14 | 2020-02-18 | 深圳市特发信息光电技术有限公司 | Micro-bending resistant metal tube optical cable |
-
2019
- 2019-06-14 CN CN201910517796.0A patent/CN110221392A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2991712B1 (en) * | 1999-02-09 | 1999-12-20 | 株式会社岡崎製作所 | High temperature signal cable |
| CN201732191U (en) * | 2010-04-02 | 2011-02-02 | 东捷光电科技(苏州)有限公司 | Flexible type fully-armored waterproof tail cable |
| CN103135189A (en) * | 2013-03-14 | 2013-06-05 | 东捷光电科技(苏州)有限公司 | Armored optical cable and splitter assembly of armored optical cable for machine room |
| CN204832610U (en) * | 2015-07-22 | 2015-12-02 | 成都亨通光通信有限公司 | Flexible steel tube armour optical cable of 8 styles of calligraphy in two cores |
| CN204883003U (en) * | 2015-09-02 | 2015-12-16 | 深圳市三园科技有限公司 | Miniature optical cable of steel wire nonrust steel pipe of transposition |
| CN206711650U (en) * | 2017-05-24 | 2017-12-05 | 福建南新电缆有限公司 | A kind of strong cable of corrosion resistance |
| CN207488580U (en) * | 2017-12-01 | 2018-06-12 | 德阳汇川科技有限公司 | A kind of double jacketed cables of stainless steel tube wire armoring |
| CN107861211A (en) * | 2017-12-21 | 2018-03-30 | 江苏中天科技股份有限公司 | A kind of heat distribution pipeline monitors sensing optic cable |
| CN210090752U (en) * | 2019-06-14 | 2020-02-18 | 深圳市特发信息光电技术有限公司 | Micro-bending resistant metal tube optical cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397737A (en) * | 2022-01-28 | 2022-04-26 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Aerospace optical cable assembly bending-resistant reinforcing method, optical cable assembly and verification method |
| CN114397737B (en) * | 2022-01-28 | 2024-05-28 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Bending-resistant reinforcement method for aerospace optical cable assembly, optical cable assembly and verification method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011343582B2 (en) | Rugged fiber optic cable | |
| CN107076944A (en) | Center loose tube formula optical fiber cable | |
| CN208283608U (en) | A kind of all dielectric dry type indoor and outdoor optical cable | |
| CN103487906A (en) | Manufacturing method of small-sized multi-core full-dry-type introduced optical cable | |
| US20190250346A1 (en) | Predefined cylindrical enclosure for optical waveguide cable | |
| CN110221392A (en) | One kind resisting micro-bend metal pipe optical cable | |
| KR101124895B1 (en) | Optical fiber cable with improved waterproof confidence | |
| CN217506201U (en) | All-dielectric pipeline direct-buried optical cable | |
| CN209858795U (en) | Optical cable structure | |
| CN101852904A (en) | Pressure-sensitive optical cable with armor layer | |
| CN201917690U (en) | Sheath-protected all-tight structure distributed strain sensing optical cable | |
| CN206479688U (en) | Light-duty anticorrosive wear-resistant armored optical cable | |
| TWM594154U (en) | Enhanced optical fiber cable | |
| CN207488580U (en) | A kind of double jacketed cables of stainless steel tube wire armoring | |
| CN210090752U (en) | Micro-bending resistant metal tube optical cable | |
| CN207488585U (en) | A kind of stainless steel tube layer-stranding cable | |
| CN106918886B (en) | A kind of Optical Cables for Shipboard and its preparation process | |
| CN102023358B (en) | Rubber-insulated wire optical cable for leading in | |
| CN201837748U (en) | Small-outer-diameter high-strength bending-resistant indoor single-core cable | |
| CN108387983A (en) | A kind of novel miniature termite proof cable of central beam tube type air-blowing | |
| KR100974365B1 (en) | Optical fiber cable for improving waterproof confidence | |
| CN209728259U (en) | A kind of miniature high intensity resists micro-bend stainless steel tube armored optical cable | |
| CN113866926A (en) | All-dielectric pipeline direct-buried optical cable | |
| CN209803411U (en) | High-strength anti-torsion optical cable | |
| KR101547914B1 (en) | Gel free Optical Ground Wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |