CN102411179A - Ribbon type optical fiber - Google Patents
Ribbon type optical fiber Download PDFInfo
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- CN102411179A CN102411179A CN201110379103XA CN201110379103A CN102411179A CN 102411179 A CN102411179 A CN 102411179A CN 201110379103X A CN201110379103X A CN 201110379103XA CN 201110379103 A CN201110379103 A CN 201110379103A CN 102411179 A CN102411179 A CN 102411179A
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- water
- optical cable
- optical fiber
- cable
- dry type
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Abstract
The invention discloses a ribbon type optical fiber. A dry water blocking material is used instead of water blocking ointment, and is arranged around a buffering bushing, so that the optical fiber is easier to use and connect. Filling ointment used in the buffering bushing is replaced, so that the optical fiber is completely free from gel, and is of full dry type.
Description
Technical field
The present invention relates to a kind of power cable product, be specifically related to a kind of absolutely dry belt optical cable.
Background technology
Along with fiber cable network progresses into user's building; In order to realize that the short distance between the buildings connects; Often need be with leading to another buildings from a buildings through outdoor environment with a kind of optical cable; Inflow point to exempt at buildings carries out continuing of outdoor/indoor two kinds of optical cables, thereby saves engineering time and expense.Outdoor optical cable need block water and inside cable to need fire-retardant be major different between them.The combustibility of the factice for filling in the outdoor loose tube cable is very unfavorable for fire-retardant requirement.So the ointment consumption that reduces in the cable core is the major measure that is adopted in outdoor/indoor dual-purpose optical cable with adopting fire retardant jacket.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art; A kind of optical cable is provided; It is characterized in that the optical cable center outwards is made up of ribbon fiber, dry filling material, separator tube, water-swellable band, PE protective seam successively, wherein be symmetrical set two groups of non-metal reinforcement members in the PE protective seam; Every group of non-metal reinforcement member is made up of two nonmetallic materials, further has out wire stripping between two nonmetallic materials.
Scheme further is: non-metal reinforcement member is an aramid fiber.
Description of drawings
Fig. 1 is an embodiment of the present invention optical cable sectional view.
Wherein: the outside sheath of 1-PE; The nonmetal stiffener assembly of 2-; 3-opens wire stripping; 4-water-swellable band; The 5-separator tube; The 6-ribbon fiber; The dry filling material of 7-.
Embodiment
In the optical cable (see figure 1) design of the outdoor loose sleeve pipe of dry type; The optical cable center outwards is made up of ribbon fiber, dry filling material, separator tube, water-swellable band, PE protective seam successively; Wherein be symmetrical set two groups of non-metal reinforcement members in the PE protective seam; Every group of non-metal reinforcement member is made up of two nonmetallic materials, further has out wire stripping between two nonmetallic materials.In view of aramid fiber high strength, high measuring body superior function select aramid fiber as non-metal reinforcement member.Usually in the separator tube of receiving optical fiber, place the water-swellable yarn that blocks water.The length of separator tube is very accurate, just is longer than the size of optical fiber slightly, and in the time of could guaranteeing like this to expand along with the temperature variation optical cable or optical cable is when receiving tensile load, the sort buffer pipe can guarantee that optical fiber does not receive the influence of the mechanical shock of optical cable.The accurate control of separator tube length guarantees that when sleeve pipe occurred stretching along with variation of temperature, optical fiber can not be forced on the buffering tube wall.Under the situation of casing collapse, the block water use of yarn of dry type intumescent can make water and aqueous vapor drop to minimum along the migration of sleeve pipe depth direction.When nuditing fiber and water after longer a period of time of coexistence; Because water and glass optical fiber react between the two and will make the strength degradation of optical fiber; If optical fiber itself just exists some flaw or the optical fiber external force effect that is subjected to continue this moment; This variation will aggravate, so the block water effect of yarn of dry type intumescent is extraordinary.The environmental testing of the reliability optical cable of dry type optical cable and mechanical test are operated according to industry standard; For example the general requirement of ICEA-640, the outer application communication standard of fiber chamber, ICEA-696 indoor and outdoor sonet standard, TelecordiaGR-20 standard and optical fiber cable thereby whether meet or exceed relevant criterion through the test optical fibre cables performance requires to show its long term reliability.Especially, water preventing ability and environmental testing can show that the properties of optical fiber cable of properties of optical fiber cable and factice for filling of complete dry type is suitable.An integrity problem that need particularly point out is the compatibility of optical fiber and the dry type material water-proof material that directly contacts with it.Adopt dry type loose tube cable and center beam tube ribbon optical cable to carry out a large amount of tests, and the optical performance test that is carried out is taken under the multiple various conditions.These schemes comprise extreme test, and wherein employed dry type material water-proof material is distinguished: activation in water (water that is under pressure passes cable jacket through some holes, and makes the activation of dry type material water-proof material under pressure) is forced in (1) in growing apart from optical cable.(2) by water activation and wherein water-cooled glaciation subsequently.(3) be exposed in the middle of the moisture content environment and temperature-40 ° F～several cycle periods of+158 ° of F (40 ℃～+ 70 ℃) scope experience.(4) by the water activation, water-cooled glaciation wherein, the optical cable that freezes then is placed in the same temperature chamber, under cryogenic conditions, carries out vibration-testing and crooked test.This method of testing shows, through selecting correct material and optic cable design, even get into separator tube and make the material water-proof material activation when water, even it reduces along with temperature and freeze, yet network reliability can both maintain on the desirable level.In addition, from different geological stratifications and contaminated hole, extract the underground water sample, and the potential of hydrogen of these underground water samples has nothing in common with each other, and adopts these water that optical cable is carried out the water penetration testing then.The termination advantage of dry type optical cable is abandoned greasy for preventing water and factice for filling in the optical cable of outdoor utility, for the user, can bring a lot of benefits.The dry type technology of blocking water provides more efficiently and more friendly technology, and by contrast, if desired the optical cable of factice for filling is cleared up, and then must use detersive that optical cable core and optical fiber are cleaned, and this process quite expends time in.With remove that gel process is diverse to be, for the dry type material water-proof material, the user only need with scissors just can be very fast and very easy with its taking-up.The dry type technology of blocking water is more conducive to simplify fusion joining process, also is beneficial to the termination of using the fan-out external member simultaneously.For welding and termination, preliminary work and required time of cleaning work that preparation, optical fiber cable are installed all can significantly be shortened.After using " dry type " optical fiber, because the optical fiber surface in the separator tube no longer is clamminess so can in the bifurcated process, fit together each other, therefore whole bifurcated process also is simplified.Equally, abandoning of optical cable ointment also reduced the for example use of washing agent and towel of a lot of final consumable products.In addition, there are some researches show, compare that " dry type " optical cable can shorten more than 50% from preparing to be installed to the working time that stops the required cost of assembling with ointment filled-type optical cable.
Ointment filled-type optical cable indoor and outdoor place commonly used before in sum, the dry type loose tube cable just is being widely used in now.The dry type technology of blocking water of innovation has shortened optical cable in the time that preparation and the required cost of termination process are installed, and can also reduce cost significantly simultaneously.And through environmental testing, mechanical test, water permeability test shows, the performance of dry type optical cable and ointment filled-type optical cable are consistent.
Claims (2)
1. optical cable; It is characterized in that; The optical cable center outwards is made up of ribbon fiber, dry filling material, separator tube, water-swellable band, PE protective seam successively; Wherein be symmetrical set two groups of non-metal reinforcement members in the PE protective seam, every group of non-metal reinforcement member is made up of two nonmetallic materials, further has out wire stripping between two nonmetallic materials.
2. according to the said optical cable of claim 1, it is characterized in that: non-metal reinforcement member is an aramid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379103XA CN102411179A (en) | 2011-11-25 | 2011-11-25 | Ribbon type optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379103XA CN102411179A (en) | 2011-11-25 | 2011-11-25 | Ribbon type optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102411179A true CN102411179A (en) | 2012-04-11 |
Family
ID=45913357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110379103XA Pending CN102411179A (en) | 2011-11-25 | 2011-11-25 | Ribbon type optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102411179A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654623A (en) * | 2012-04-27 | 2012-09-05 | 成都亨通光通信有限公司 | Full-dry outdoor optical cable |
| CN115527715A (en) * | 2022-10-31 | 2022-12-27 | 长飞光纤光缆股份有限公司 | Quick stripping full-dry type photoelectric composite belt cable and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6236790B1 (en) * | 1998-03-25 | 2001-05-22 | Fujikura Ltd. | Optical-fiber cable and method of manufacturing the same |
| CN101339280A (en) * | 2002-12-19 | 2009-01-07 | 康宁光缆系统有限公司 | Optical tube assembly having a dry insert and methods of making the same |
| CN102023359A (en) * | 2011-01-20 | 2011-04-20 | 汕头高新区奥星光通信设备有限公司 | All-dielectric central tube type optical cable |
| CN102081207A (en) * | 2011-01-18 | 2011-06-01 | 江苏长飞中利光纤光缆有限公司 | Central tube optical cable with compact structure |
-
2011
- 2011-11-25 CN CN201110379103XA patent/CN102411179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6236790B1 (en) * | 1998-03-25 | 2001-05-22 | Fujikura Ltd. | Optical-fiber cable and method of manufacturing the same |
| CN101339280A (en) * | 2002-12-19 | 2009-01-07 | 康宁光缆系统有限公司 | Optical tube assembly having a dry insert and methods of making the same |
| CN102081207A (en) * | 2011-01-18 | 2011-06-01 | 江苏长飞中利光纤光缆有限公司 | Central tube optical cable with compact structure |
| CN102023359A (en) * | 2011-01-20 | 2011-04-20 | 汕头高新区奥星光通信设备有限公司 | All-dielectric central tube type optical cable |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国信息产业部: "《YD/T 1258.5-2005 室内光缆系列 第五部分 光纤带光缆》", 1 November 2005 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654623A (en) * | 2012-04-27 | 2012-09-05 | 成都亨通光通信有限公司 | Full-dry outdoor optical cable |
| CN115527715A (en) * | 2022-10-31 | 2022-12-27 | 长飞光纤光缆股份有限公司 | Quick stripping full-dry type photoelectric composite belt cable and manufacturing method thereof |
| CN115527715B (en) * | 2022-10-31 | 2023-08-25 | 长飞光纤光缆股份有限公司 | Quick stripping all-dry photoelectric composite belt cable and manufacturing method thereof |
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Application publication date: 20120411 |