CN101923198B - Enhanced fiber unit and manufacturing method thereof - Google Patents
Enhanced fiber unit and manufacturing method thereof Download PDFInfo
- Publication number
- CN101923198B CN101923198B CN2010102448298A CN201010244829A CN101923198B CN 101923198 B CN101923198 B CN 101923198B CN 2010102448298 A CN2010102448298 A CN 2010102448298A CN 201010244829 A CN201010244829 A CN 201010244829A CN 101923198 B CN101923198 B CN 101923198B
- Authority
- CN
- China
- Prior art keywords
- fiber
- optical fiber
- protection layer
- extruding machine
- optic protection
- 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.)
- Active
Links
Images
Landscapes
- Communication Cables (AREA)
Abstract
The invention provides an enhanced fiber unit and a manufacturing method thereof, relating to a fiber unit with an enhanced component and the manufacturing method thereof, and being suitable for production and manufacturing of various photoelectricity compound cables, optical fiber composite cables, seabed photoelectricity compound cables, indoor type optical cables and the like. The fiber unit comprises a plurality of optical fibers, optical fiber filling oil paste, an optical fiber protective layer, a fiber reinforced layer and a reinforced external sheath, wherein the outside of the optical fiber is coated with the optical fiber protective layer; the optical fiber filling oil paste is filled among a plurality of optical fibers in the optical fiber protective layer; the fiber reinforced layer is arranged outside the optical fiber protective layer; and the reinforced external sheath is arranged outside the fiber reinforced layer. The manufacturing method comprises the following steps: emitting the optical fiber from a constant tension dereeler, after forming beams, a layer of optical fiber protective layer is extruded out through a specific extruder; filling water repellent filler between the optical fibers when the optical fiber protective layer is extruded; and winding a layer of nonmetal fiber yarn with high strength outside the optical fiber protective layer, and extruding a layer of waterproof reinforced external sheath outside the fiber yarn, and obtaining a finished product.
Description
Technical field
A kind of enhanced fiber unit of the present invention and preparation method thereof relates to is a kind of fiber unit of strengthening element and preparation method thereof that has, and is applicable to that various optoelectronic composite cables, Optical Fiber Composite cable, sea floor optoelectronic composite cable, house lead in type optical cable etc. contain the production and the manufacturing of fiber unit of the power cable of fiber unit.Load-bearing component in the fiber unit is used for protecting damage of external force such as optical fiber is not drawn, pressure, safeguards the normal operation of optical fiber.Optical fiber in the fiber unit can be realized various information transmission and automatic control function.
Background technology
In recent years; Fast development along with China's power grid construction; The power optical fiber that is used for power information transmission and control usefulness has obtained fast development, has been widely used in long distance transmission line and city overhead transmission line like power optical fiber aerial earth wire (OPGW), no metal self-bearing type electric power optical cable (ADSS), electric power optical cable (OPPC) etc.Cross over rivers,lakes and seas the Optical Fiber Composite subsea cable, be used for offshore oil platform power supply usefulness sea floor optoelectronic composite cable, be used to connect the fiber composite power cable of wind power plant and transformer station etc.; These power cables have a common characteristic; Be exactly to contain in the power cable to can be used for the fiber unit that power communication and control instrument equipment are used; These products both had been used for the transmission of electric energy, again as the carrier of information.Especially for Optical Fiber Composite cable under water, optical fiber and power cable are combined with each other, and have not only practiced thrift the manufacturing cost of equipment, and have practiced thrift a large amount of seabed space resources and executive cost, have good society and economic benefit.
Moreover; Intelligent grid is set up in national grid proposition in 2009 and power optical fiber reaches the development plans that many nets merge to the family; The intellectuality of general requirement operation power circuit and drop cable automatic control system merge with telecommunications network, broadcasting and television network and computer communication network mutually, realize sharing of Internet resources; Avoid low-level duplicate construction, Internet resources will be fully utilized.Progressively require drop cable should contain telecommunication cable simultaneously, and optical fiber does not receive the characteristic of low-voltage influence, has determined it to be used for the superiority of power cable as communications carrier.
Must contain fiber unit in the Optical Fiber Composite cable, and the light unit that contains metal is subject to the power cable effect of electric field and produces loss and heating, the transmission performance and life-span of cable and optical cable all existed certain influence.And common non-metal optical unit does not possess mechanical protection functions such as tension required in production and the operation maintenance process and resistance to compression because of it does not contain the enhancing element.
Summary of the invention
The present invention seeks to provides a kind of enhanced fiber unit and preparation method thereof to the demand and weak point; In the manufacture process of the unit of optical fiber; Increase the protective seam that improves optical fiber opposing outside destroy in the periphery of optical fiber, constitute enhanced fiber unit, make fiber unit in and photoelectricity composite cable construction maintenance process stranded, can bear certain pulling force and mechanical pressure with the cable core stranding; Guarantee the integrity of optical fiber, thereby keep its excellent communications function.
Enhanced fiber unit and preparation method thereof is to take following technical scheme to realize: enhanced fiber unit comprises some optical fiber, optical fiber factice for filling, fiber optic protection layer, fabric reinforcement (enhancing element), strengthens outer jacket.Be enclosed with the fiber optic protection layer in outer fiber, between the some optical fiber in the fiber optic protection layer optical fiber factice for filling arranged, fabric reinforcement (enhancing element) is arranged in fiber optic protection layer outside, there is the reinforcement outer jacket fabric reinforcement (enhancing element) outside.
The optical fiber master is machined through thickness by high-purity quartz.The fiber optic protection layer is that hard-pressed bale or bale breaking are in the plastic protective layer of outside of fiber.Fabric reinforcement (enhancing element) is nonmetallic high strength fibre yarn.Strengthening outer jacket can be the extrusion type plastic sheath, also can be extrusion type elastic body class sheath material.Contain 2～96 optical fiber in the fiber unit.
Enhanced fiber unit and preparation method thereof:
The some optical fiber 1 that 1, will be coated with chromatogram are put on the permanent tension stringing frame, and setting the optical fiber laying tension is 70～90g; Said optical fiber is provided with 2～96;
2, some optical fiber 1 are drawn from pay off rack, combine in the extrusion die of introducing extruding machine, extrusion die is the self centring mould, squeezes tubular type;
3, adjust the working temperature of extruding of extruding machine, operating temperature range is 160～240 ℃, adjustment extrusion die position; Make mold center and equipment center point be in same horizontal level, the peripheral clearance of core rod and die sleeve is started extruding machine apart from equalization; Extrude one deck PBT plastic protective sleeve pipe as the fiber optic protection layer some outside of fiber; Be the fiber optic protection layer, between some optical fiber and fiber optic protection layer, fill the optical fiber factice for filling simultaneously, the optical fiber factice for filling adopts greasy for preventing water.The fiber optic protection layer cools off from passing through bosh after the head of extruding machine comes out; Bosh is divided into 6 sections, and every segment length 4.5m is for guaranteeing excess fiber length; The water temperature that begins each section tank from the extruding machine die orifice is set at 70～90 ℃, 50～70 ℃, 35～45 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃ successively; Tension force take-up mode, takeup tension 15～255N are adopted in take-up, take-up;
4, contain fiber optic protection layer outside winding one deck fabric reinforcement (enhancing element) of some optical fiber more than the general, fabric reinforcement (enhancing element) adopts high strength glass fiber or high strength to spin the synthetic fibre yarn, and fortifying fibre is generally 5～20.Extrude one deck simultaneously through another extruding machine simultaneously and strengthen outer jacket, process enhanced fiber unit.The extrusion temperature of respectively distinguishing of extruding machine is strict controlled between 150～260 ℃, and temperature deviation is no more than ± and 5 ℃.The high strength fibre of fabric reinforcement (enhancing element) will closely cover fiber optic protection layer outside.Strengthen outer jacket and will have good water-proof function.Strengthening outer jacket and can adopt waterproof extrusion plastic sheath, also can be elastic body class sheath material.Strengthen outer jacket and cool off from passing through bosh after the head of extruding machine comes out, bosh is divided into 6 sections, every segment length 4.5m; For guaranteeing excess fiber length; The water temperature that begins each section tank from the extruding machine die orifice is set at 55～65 ℃, 35～45 ℃, 25～35 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃ successively, and tension force take-up mode is adopted in take-up, take-up; Takeup tension 40～60N receives the enhanced fiber unit of processing on cable drum.
Fiber unit of the present invention can be used for electric pressure and is 1kV in the 500kV power cable, several 1～5 cores of cable core.
The invention has the beneficial effects as follows: enhanced fiber unit of the present invention and preparation method thereof; In the manufacture process of the unit of optical fiber; Increase the protective seam that improves optical fiber opposing outside destroy in the periphery of optical fiber, constitute enhanced fiber unit, make fiber unit in and photoelectricity composite cable construction maintenance process stranded, can bear certain pulling force and mechanical pressure with the cable core stranding; Guarantee the integrity of optical fiber, thereby keep its excellent communications function.Through adopting non-metal reinforced layer, not only improved the tensile property of fiber unit, and reduced, the influence of metallicity reinforcement because of the cable electric field effects.Under the power cable effect of electric field, non-metal reinforced layer can not produce induction current, thereby reduces the electric energy loss of cable, has prolonged the serviceable life of cable and fiber unit.
Description of drawings
Below will combine accompanying drawing that invention is described further:
Fig. 1 is the enhanced fiber unit structural representation.
Embodiment
With reference to accompanying drawing 1, enhanced fiber unit comprises some optical fiber 1, optical fiber factice for filling 2, fiber optic protection layer 3, fabric reinforcement (enhancing element) 4, strengthens outer jacket 5.Be wrapped with fiber optic protection layer 3 in some optical fiber 1 external packets; Between the some optical fiber in fiber optic protection layer 3 optical fiber factice for filling 2 is arranged; Fabric reinforcement (enhancing element) 4 is arranged in fiber optic protection layer outside, and there is the outer jacket 5 of reinforcement fabric reinforcement (enhancing element) 4 outsides.
Optical fiber 1 master machined through thickness by high-purity quartz.Said fiber optic protection layer 3 adopts hard-pressed bale or bale breaking in the plastic protective layer (PBT pine sleeve pipe) of outside of fiber.Said fabric reinforcement (enhancing element) adopts nonmetallic high strength fibre yarn.Said reinforcement outer jacket can be a waterproof extrusion plastic sheath, also can be elastic body class sheath material.Contain 2～96 optical fiber in the fiber unit.
Described enhanced fiber unit not only comprises the optical fiber 1 of the usefulness of communicating by letter, protection optical fiber factice for filling 2, and fiber optic protection layer 3 (fiber optic protection PBT pipe) comprises that also optical fiber strengthens element 4 and reinforcement outer jacket 5.Said optical fiber factice for filling 2 can adopt commercially available greasy for preventing water.
Described enhanced fiber unit is characterized in that optical fiber 1 is positioned over the center of each protective seam and reinforcing element, enhancement Layer.
Described enhanced fiber unit is characterized in that the reinforcing element material is the high strength fibre yarn.
Enhanced fiber unit of the present invention is used in the cable that electric pressure is 1kV～500kV, constitutes with power cable to can be used for the photoelectricity composite cable that electric power and information (communication) are transmitted as one.
Enhanced fiber unit and preparation method thereof:
The some optical fiber 1 that 1, will be coated with chromatogram are put on the permanent tension stringing frame, and setting the optical fiber laying tension is 70～90g; Said optical fiber is provided with 2～96;
2, some optical fiber 1 are drawn from pay off rack, combine in the extrusion die of introducing extruding machine, extrusion die is the self centring mould, squeezes tubular type;
3, adjust the working temperature of extruding of extruding machine, operating temperature range is 160～240 ℃, adjustment extrusion die position; Make mold center and equipment center point be in same horizontal level, the peripheral clearance of core rod and die sleeve is started extruding machine apart from equalization; Extrude one deck PBT plastic protective sleeve pipe as the fiber optic protection layer some outside of fiber; Be fiber optic protection layer 3, between some optical fiber and fiber optic protection layer, fill optical fiber factice for filling 2 simultaneously, optical fiber factice for filling 2 adopts greasy for preventing water.The fiber optic protection layer cools off from passing through bosh after the head of extruding machine comes out; Bosh is divided into 6 sections, and every segment length 4.5m is for guaranteeing excess fiber length; The water temperature that begins each section tank from the extruding machine die orifice is set at 70～90 ℃, 50～70 ℃, 35～45 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃ successively; Tension force take-up mode, takeup tension 15～255N are adopted in take-up, take-up;
4, the PBT fiber optic protection layer 3 outside winding one deck fabric reinforcements (enhancing element) 4 that contain some optical fiber more than the general, fabric reinforcement (enhancing element) 4 adopts high strength glass fibers or high strength to spin the synthetic fibre yarn, and fortifying fibre is generally 5～20.Extrude one deck simultaneously through another extruding machine simultaneously and strengthen outer jacket 5, process increase type fiber unit.The extrusion temperature of respectively distinguishing of extruding machine is strict controlled between 150～260 ℃, and temperature deviation is no more than ± and 5 ℃.The high strength fibre of fabric reinforcement 4 will closely cover fiber optic protection layer 3 outside.Strengthen outer jacket 5 and will have good water-proof function.Strengthening outer jacket 5 and adopt waterproof extrusion plastic sheaths, also can be elastic body class sheath material, and fabric reinforcement (enhancing element) 4 is outer to extrude and strengthen outer jacket 5 and cool off from passing through bosh after the head of extruding machine comes out; Bosh is divided into 6 sections; Every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 55～65 ℃, 35～45 ℃, 25～35 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃ successively; Take-up; Tension force take-up mode is adopted in take-up, and takeup tension 40～60N receives the enhanced fiber unit of processing on cable drum.
Claims (1)
1. enhanced fiber unit method for making; Enhanced fiber unit comprises some optical fiber, optical fiber factice for filling, fiber optic protection layer, fabric reinforcement, reinforcement outer jacket; Be enclosed with the fiber optic protection layer in outer fiber, between the some optical fiber in the fiber optic protection layer optical fiber factice for filling arranged, fabric reinforcement is arranged in fiber optic protection layer outside; There is the reinforcement outer jacket fabric reinforcement outside, it is characterized in that:
The some optical fiber that (1) will be coated with chromatogram are put on the permanent tension stringing frame, and setting the optical fiber laying tension is 70～90g; Said optical fiber is provided with 2～96;
(2) some optical fiber are drawn from pay off rack, combine in the extrusion die of introducing extruding machine, extrusion die is the self centring mould, squeezes tubular type;
(3) the adjustment extruding machine extrude working temperature, operating temperature range is 160～240 ℃, adjustment extrusion die position; Make mold center and extruder head central spot in same horizontal level, the peripheral clearance of core rod and die sleeve is started extruding machine apart from equalization; Extrude one deck PBT plastic protective sleeve pipe as the fiber optic protection layer some outside of fiber, promptly the fiber optic protection layer is filled the optical fiber factice for filling simultaneously between some optical fiber and protective casing; The fiber optic protection layer is extruded laggardly to go into tank and carry out the segmentation cooling from extruding machine, and bosh is divided into 6 sections, every segment length 4.5m; For guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 70～90 ℃, 50～70 ℃, 35～45 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃, take-up successively; Tension force take-up mode, takeup tension 15～255N are adopted in take-up;
(4) will more than contain some optical fiber PBT fiber optic protection layer outside twine one deck fabric reinforcement, fabric reinforcement adopts high strength glass fiber or high strength to spin the synthetic fibre yarn, extrudes one deck simultaneously through another extruding machine simultaneously and strengthens outer jacket; Process enhanced fiber unit, the extrusion temperature of respectively distinguishing of extruding machine is strict controlled between 150～260 ℃, and the high strength fibre of fabric reinforcement will closely cover fiber optic protection layer outside; Strengthen outer jacket and will have good water-proof function; Strengthening outer jacket and adopt waterproof extrusion plastic sheath, also can be elastic body class sheath material, strengthens outer jacket and cools off from passing through bosh after the head of extruding machine comes out; Bosh is divided into 6 sections; Every segment length 4.5m, for guaranteeing excess fiber length, the water temperature that begins each section tank from the extruding machine die orifice is set at 55～65 ℃, 35～45 ℃, 25～35 ℃, 15～25 ℃, 15～25 ℃, 15～25 ℃ successively; Take-up; Tension force take-up mode is adopted in take-up, and takeup tension 40～60N receives the enhanced fiber unit of processing on cable drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102448298A CN101923198B (en) | 2010-08-04 | 2010-08-04 | Enhanced fiber unit and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102448298A CN101923198B (en) | 2010-08-04 | 2010-08-04 | Enhanced fiber unit and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101923198A CN101923198A (en) | 2010-12-22 |
| CN101923198B true CN101923198B (en) | 2012-05-09 |
Family
ID=43338233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102448298A Active CN101923198B (en) | 2010-08-04 | 2010-08-04 | Enhanced fiber unit and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101923198B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516236A (en) * | 2020-04-30 | 2020-08-11 | 浙江东通光网物联科技有限公司 | Butterfly cable production line and production process for preventing optical fiber from retracting |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401952A (en) * | 2011-11-24 | 2012-04-04 | 成都亨通光通信有限公司 | High-intensity optical cable |
| CN102654614A (en) * | 2012-04-20 | 2012-09-05 | 苏州洲通光电科技有限公司 | Device for manufacturing ultra-high-strength reinforced core optical cable |
| CN104297875B (en) * | 2014-10-13 | 2017-07-07 | 中天科技海缆有限公司 | A kind of high pressure optoelectronic composite cable equipotential fiber unit and preparation method thereof |
| CN104914533A (en) * | 2015-05-29 | 2015-09-16 | 成都亨通光通信有限公司 | Metal-free rat-proof optical cable |
| CN105204131A (en) * | 2015-11-03 | 2015-12-30 | 江苏亨通光电股份有限公司 | Manufacturing method of central tube FTTH enhanced type leading-in optical cable and optical cable |
| CN105869769B (en) | 2016-05-06 | 2017-06-20 | 江苏中天科技股份有限公司 | A kind of high-definition video signal transmission micro photo electric composite rope and preparation method thereof |
| CN106199861A (en) * | 2016-06-30 | 2016-12-07 | 南京华信藤仓光通信有限公司 | A kind of anti-unfirmly closing ADSS optical cable and preparation method thereof |
| CN106199867A (en) * | 2016-08-04 | 2016-12-07 | 成都亨通光通信有限公司 | A kind of production technology of all dielectric 8-shaped self-bearing type glass fibre belt optical cable |
| CN110879446B (en) * | 2019-11-30 | 2021-02-02 | 江苏长飞中利光纤光缆有限公司 | Manufacturing method of invisible butterfly-shaped optical cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429843Y (en) * | 2000-03-08 | 2001-05-09 | 江苏中天科技股份有限公司 | Central pipe style complete self supported optical cable without enhancing core |
| CN1460873A (en) * | 2003-04-25 | 2003-12-10 | 江苏中天科技股份有限公司 | Multicore bunched close-covered optical fibre unit and its production method |
| CN1513125A (en) * | 2001-06-04 | 2004-07-14 | 皮雷利＆C・有限公司 | Optical cable provided with mechanically resistant covering |
| CN2722273Y (en) * | 2004-06-29 | 2005-08-31 | 烽火通信科技股份有限公司 | Outdoor medium central tubing miniature optical cable |
| CN101533109A (en) * | 2009-04-21 | 2009-09-16 | 广安静屹塑料光纤有限公司 | A production process of polymer optical fiber |
| CN201740900U (en) * | 2010-08-04 | 2011-02-09 | 中天科技海缆有限公司 | Reinforcing optical fiber unit |
-
2010
- 2010-08-04 CN CN2010102448298A patent/CN101923198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429843Y (en) * | 2000-03-08 | 2001-05-09 | 江苏中天科技股份有限公司 | Central pipe style complete self supported optical cable without enhancing core |
| CN1513125A (en) * | 2001-06-04 | 2004-07-14 | 皮雷利＆C・有限公司 | Optical cable provided with mechanically resistant covering |
| CN1460873A (en) * | 2003-04-25 | 2003-12-10 | 江苏中天科技股份有限公司 | Multicore bunched close-covered optical fibre unit and its production method |
| CN2722273Y (en) * | 2004-06-29 | 2005-08-31 | 烽火通信科技股份有限公司 | Outdoor medium central tubing miniature optical cable |
| CN101533109A (en) * | 2009-04-21 | 2009-09-16 | 广安静屹塑料光纤有限公司 | A production process of polymer optical fiber |
| CN201740900U (en) * | 2010-08-04 | 2011-02-09 | 中天科技海缆有限公司 | Reinforcing optical fiber unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516236A (en) * | 2020-04-30 | 2020-08-11 | 浙江东通光网物联科技有限公司 | Butterfly cable production line and production process for preventing optical fiber from retracting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101923198A (en) | 2010-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101923198B (en) | Enhanced fiber unit and manufacturing method thereof | |
| CN104020544B (en) | Non-metallic cable and manufacturing method thereof | |
| CN104297875B (en) | A kind of high pressure optoelectronic composite cable equipotential fiber unit and preparation method thereof | |
| CN107357013A (en) | A kind of slotted core cable and preparation method | |
| CN104916369A (en) | Photoelectrical composite torsion-resistant medium-voltage wind power cable and method for manufacturing the same | |
| CN105891981A (en) | FRP (fiber reinforce plastic) rod armored nonmetal rat-proof optical cable and manufacture process thereof | |
| CN108231256A (en) | A kind of load-bearing optoelectronic composite cable and its manufacturing process | |
| CN204614536U (en) | The light-duty composite rope of dynamic photoelectric under water | |
| CN201749732U (en) | Photoelectric composite umbilical cable of underwater robot | |
| CN110908056A (en) | High-low temperature resistant remote optical cable and manufacturing process thereof | |
| CN104464951B (en) | Photoelectric mixed cable containing coaxial electrical unit and manufacture method thereof | |
| CN107179586B (en) | Large-core-number feed submarine optical cable | |
| US20130183013A1 (en) | Fiber optic overhead ground wire cable and process for the manufacturing thereof | |
| CN202171972U (en) | Novel photoelectric composite cable | |
| CN113866922A (en) | Outdoor optical cable with large-core-number micro-beam tube and process manufacturing method thereof | |
| CN106443918A (en) | Center beam tube type optical cable, manufacturing method and fixing method of center beam tube type optical cable and plastic fixture | |
| CN201740900U (en) | Reinforcing optical fiber unit | |
| CN211014742U (en) | All-dielectric multipurpose outdoor optical cable | |
| CN2916864Y (en) | Composite optical/electric cable | |
| CN207096518U (en) | Large core number feeds submarine optical fiber cable | |
| CN202178103U (en) | Photoelectric composite cable for remote power supply | |
| CN103021547B (en) | Photoelectric fusion hybrid cable | |
| CN204229920U (en) | Photoelectric mixed cable containing coaxial electrical unit | |
| CN105589150A (en) | Hybrid optical fiber with large fiber core number | |
| CN203405603U (en) | Central tubular type optical cable convenient for adding signal line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 226010 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu Co-patentee after: Zhong Tian electric power optical cable Co., Ltd Patentee after: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. Address before: 226010 No. 1 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu Patentee before: Zhongtian Technologies Submarine Optic Fiber Cable Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200721 Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Co-patentee before: ZHONGTIAN POWER OPTICAL CABLE Co.,Ltd. Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee after: Zhongtian Technology submarine cable Co., Ltd Address before: 226010 No. 1 South Road, Nantong economic and Technological Development Zone, Jiangsu, China Patentee before: ZHONGTAN TECHNOLOGY SUBMARINE CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |