CN106646799A - Aerial optical cable and manufacturing method thereof - Google Patents
Aerial optical cable and manufacturing method thereof Download PDFInfo
- Publication number
- CN106646799A CN106646799A CN201710097397.4A CN201710097397A CN106646799A CN 106646799 A CN106646799 A CN 106646799A CN 201710097397 A CN201710097397 A CN 201710097397A CN 106646799 A CN106646799 A CN 106646799A
- Authority
- CN
- China
- Prior art keywords
- optical cable
- aerial optical
- cable
- reinforcing element
- aerial
- 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.)
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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
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention discloses an aerial optical cable and a manufacturing method thereof and relates to the technical field of communication optical cables. The aerial optical cable is sequentially provided with a cable core, water stopping elements and an outer protective jacket layer from inside to outside, wherein the cable core is formed by twisting a plurality of optical fiber units, and each optical fiber unit comprises a protective jacket and an optical fiber arranged in the protective jacket; the water stopping elements are arranged at the peripheries of the plurality of optical fiber units in a dispersed manner along the longitudinal direction of the cable core; the outer protective jacket layer is internally buried with at least one non-metal reinforcing element along the longitudinal direction of the cable core; and the non-metal reinforcing element and the outer protective jacket layer are stuck to form a whole body. According to the aerial optical cable disclosed by the invention, the rigidity of the non-metal reinforcing element is stronger than that of the outer protective jacket layer, and the density is low; the tensile strength and anti-tearing strength of the outer protective jacket layer can be effectively improved, and the retraction of the outer protective jacket layer is resisted, so that the tensile strength of the aerial optical cable and high and low environment temperature resisting performances are extremely improved; meanwhile, the use amount of the reinforcing element is reduced, and the manufacturing difficulty and cost of the aerial optical cable are reduced; and the weight of the aerial optical cable is lightened, and the aerial optical cable is convenient to lay.
Description
The present invention relates to communications optical cable technical field, is specifically related to a kind of aerial optical cable and its manufacture method.
Background technology
Aerial optical cable realizes that optical cable is built on stilts and lays using the built on stilts pole line of open-wire line, this system of laying have expense of laying it is low,
The advantage of cycle is short, but aerial optical cable is exposed in outdoor elements throughout the year, by wind and snow, frost, ice slush, Exposure to Sunlight, big
The impact of the extraneous factor such as wind weather and extreme changes of temperature year in year out, due to lacking means, aerial optical are effectively protected
Apparently higher than the optical cable of the types such as pipeline, direct-burried, Cable's Fault can directly contribute communicating interrupt to the fault rate of cable, and subsequently tie up
Shield is with high costs.The mechanical performances such as tensile strength, the anti tear of cable jacket therefore, to aerial optical cable and high low ambient temperature
The requirement of performance is very high.Existing aerial optical cable mainly includes metal self-bearing type, messenger wire formula and All Dielectric self-support
(ADSS) the shortcomings of, there is non-all dielectric, loaded down with trivial details construction, high cost in metal self-bearing type and messenger wire formula.Existing ADSS optical cables bag
Cable core and reinforcing element and oversheath outside cable core are included, oversheath rigidity itself is weaker, holds in the case of extreme changes of temperature
Easily deform, cause cable core also to deform therewith, so as to cause optical fiber to damage, and optical cable sag is larger, is unfavorable for optical cable frame
Sky lays.In addition, the mechanical performance such as tensile strength, comprcssive strength in order to improve optical cable, it usually needs using more reinforcements
Element, causes optical cable cost increase.
The content of the invention
For defect present in prior art, present invention is primarily targeted at a kind of aerial optical cable is provided, the present invention
Another object be that a kind of manufacture method of aerial optical cable is provided, tension, the anti tear of external sheath layer can be effectively improved
The retraction of intensity and opposing external sheath layer, so as to drastically increase the tensile strength and anti-high low ambient temperature of aerial optical cable
Performance, while reducing the consumption of reinforcing element, reduces the manufacture difficulty and cost of aerial optical cable, and mitigates the weight of this aerial optical cable
Amount, is easy to optical cable to make somebody a mere figurehead and lays.
The present invention provides a kind of aerial optical cable, and the aerial optical cable includes successively from inside to outside：
Cable core, it is formed by multiple fiber units are stranded, and the fiber unit includes sheath and in the sheath
Optical fiber；
Water-blocking element, it is arranged at around multiple fiber units along the cable core longitudinal dispersion；
External sheath layer, at least one nonmetallic reinforcing element, the nonmetallic reinforcement are longitudinally buried in it along the cable core
Element is bonded as one with the external sheath layer.
On the basis of above-mentioned technical proposal, the fiber unit be miniature Loose tube fiber unit, ribbon-unit or
Person mini optical fibre Shu Danyuan.
On the basis of above-mentioned technical proposal, the water-blocking element is water blocking yarn, waterstop or water resistance aramid fiber yarn.
On the basis of above-mentioned technical proposal, tensile elements, the tension are additionally provided between the external sheath layer and cable core
Element and the water-blocking element are arranged at around multiple fiber units along the cable core longitudinal dispersion.
On the basis of above-mentioned technical proposal, the tensile elements are aramid fiber, organdy or glass fiber reinforced composite
Plastics GFRP bands.
On the basis of above-mentioned technical proposal, the nonmetallic reinforcing element is GFRP reinforcements.
On the basis of above-mentioned technical proposal, the cross section of the GFRP reinforcements is circular, oval or pancake
Shape.
On the basis of above-mentioned technical proposal, each GFRP reinforcements outer rim is to the edge of the external sheath layer
Minimum range is 0.5mm.
On the basis of above-mentioned technical proposal, the quantity of the nonmetallic reinforcing element is two, each described non-gold
Category reinforcing element includes one or two GFRP reinforcements.
The present invention also provides a kind of manufacture method of aerial optical cable, the nonmetallic reinforcing element and the external sheath layer it
Between by heat reactive resin bonding it is integral.
Compared with prior art, advantages of the present invention is as follows：
(1) nonmetallic reinforcing element is embedded with external sheath layer of the invention, external sheath layer is viscous with nonmetallic reinforcing element
Be connected in one, nonmetallic reinforcing element rigidity is stronger than external sheath layer, and density is low, can effectively improve external sheath layer tension,
The retraction of tearing toughness and opposing external sheath layer, so as to drastically increase the tensile strength and anti-height ring of aerial optical cable
Border temperature performance, while reducing the consumption of reinforcing element, reduces the manufacture difficulty and cost of aerial optical cable, and mitigates this aerial optical
The weight of cable, is easy to laying for aerial optical cable.
(2) sheath stranded in fiber unit of the invention can preferably protect optical fiber, and be conducive to improving cable core
Mechanical strength.In addition, the characteristics of stranded fiber unit has small volume, density of optic fibre is high, can reduce the footpath of aerial optical cable
To size so that the compact conformation of aerial optical cable, it is easy to transport and the cable laying operation of aerial optical cable.
(3) water-blocking element of the invention is water blocking yarn, waterstop or water resistance aramid fiber yarn, is not only advantageous to aerial optical cable
Stripping, fused fiber splice operation, and mitigate the weight of aerial optical cable.
(4) present invention can additionally arrange the tensile elements such as aramid fiber, organdy, GFRP bands according to practical situations, to
Further improve the tensile property of aerial optical cable.
Description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention aerial optical cable.
In figure：
1- cable cores, 11- fiber units, 111- sheaths, 112- optical fiber, 2- water-blocking elements, 3- external sheath layers, 4- is nonmetallic to be added
Strong element, 5- tensile elements.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of aerial optical cable, and aerial optical cable includes successively from inside to outside cable core
1st, water-blocking element 2 and external sheath layer 3.
Cable core 1 is formed by multiple fiber units 11 are stranded, and fiber unit 11 includes sheath 111 and in sheath 111
Optical fiber 112.
Fiber unit 11 is miniature Loose tube fiber unit, ribbon-unit or mini optical fibre Shu Danyuan.Fiber unit
11 quantity is 2～72, and each fiber unit 11 includes 1～24 colored optical fiber.Fiber unit 11 is stranded by SZ or S is twisted
Conjunction forms cable core 1, and sheath 111 stranded in fiber unit 11 can preferably protect optical fiber 112, and be conducive to improving cable core 1
Mechanical strength, also allow for the outside of cable core 1 cladding water-blocking element 2 and/or tensile elements 5, and external sheath layer 3.In addition, twisting
The characteristics of fiber unit 11 of conjunction has small volume, density of optic fibre is high, can reduce the radial dimension of aerial optical cable so that built on stilts
The compact conformation of optical cable, is easy to transport and the cable laying operation of optical cable.
Made a distinction by the colour circle of its coating color or coating layer surface between each fiber unit 11, also can be by spy
Determine mode and carry out packet to tie up, improve the identification of fiber unit 11.
Water-blocking element 2 is arranged at around multiple fiber units 11 along the longitudinal dispersion of cable core 1 or cladding.Water-blocking element 2 is resistance
Water yarn, waterstop or water resistance aramid fiber yarn, waterstop wraps up cable core 1 by vertical packet mode, and filling water-blocking element 2 is able to ensure that light
Cable longitudinal direction waterproof.
This dry type blocks water mode compared with traditional cable cream mode blocks water, and can mitigate the weight of aerial optical cable, so as to
The requirement for reducing the tensile property to aerial optical cable is connect, the behaviour such as stripping, fused fiber splice of aerial optical cable is also very easy to
Make.
According to the actual erection condition needs of aerial optical cable, optionally add anti-between external sheath layer 3 and cable core 1
Element 5 is drawn, further to improve the tensile property of aerial optical cable.Tensile elements 5 and water-blocking element 2 are along the longitudinal dispersion of cable core 1
Or cladding is arranged at around multiple fiber units 11.Tensile elements 5 are aramid fiber, organdy or glass fiber reinforced composite plastics
GFRP bands.
Along the embedded at least one nonmetallic reinforcing element 4 in the longitudinal direction of cable core 1 in external sheath layer 3, nonmetallic reinforcing element 4 with it is outer
Restrictive coating 3 is bonded as one.The material of external sheath layer 3 is polyethylene, flame-proof polyethylene, low-smoke halogen-free polyolefin or polychlorostyrene second
Alkene, restrictive coating 3 is coated on outside cable core 1, water-blocking element 2 and presumable tensile elements 5.
Nonmetallic reinforcing element 4 is GFRP reinforcements, and the cross section of GFRP reinforcements is circular, oval or pancake
Shape.The full-size of GFRP reinforcements is 0.5～3.0mm, and for example, for cross section is circular GFRP reinforcements, it is maximum
A diameter of 0.5～3.0mm, for the GFRP reinforcements that cross section is oval or flat pattern, the full-size of cross section
For 0.5～3.0mm, the minimum range of each GFRP reinforcements outer rim to the edge of external sheath layer 3 is 0.5mm.GFRP strengthens
Weight, span, erection condition and local environment weather etc. factor determination of the size of part generally according to aerial optical cable.GFRP strengthens
Part is fully wrapped around by restrictive coating 3, and the thickness of restrictive coating 3 is determined according to the size of GFRP reinforcements, must generally ensure that GFRP strengthens
3 thickness of external sheath layer >=0.5mm around part.For example, if the size of the GFRP reinforcements of pole shape is 1.0mm, external sheath layer 3
Thickness should be not less than 2.0mm.
The quantity of nonmetallic reinforcing element 4 is two, and each nonmetallic reinforcing element 4 includes one or two GFRP
Reinforcement.The line of two nonmetallic reinforcing elements 4 through the geometric center of external sheath layer 3, hang down by the line direction of two GFRP
Directly in the line direction of two groups of nonmetallic reinforcing elements 4.
The cross section of external sheath layer 3 can be annular, and nonmetallic reinforcing element 4 uniformly, symmetrically divides in external sheath layer 3
Cloth, is not only able to guarantee the integral rigidity of aerial optical cable, and manufactures easy to process.
External sheath layer 3 is bonded as one with nonmetallic reinforcing element 4 in the present invention, and the rigidity of nonmetallic reinforcing element 4 is than outer
Restrictive coating the last 3, density is low, can effectively improve tension, tearing toughness and the opposing external sheath layer 3 of external sheath layer 3
Retraction, so as to drastically increase the tensile strength and anti-high low ambient temperature performance of aerial optical cable, while reducing reinforcing element
Consumption, reduce the manufacture difficulty and cost of aerial optical cable, and mitigate the weight of this aerial optical cable, be easy to applying for aerial optical cable
If.Nonmetallic reinforcing element 4 is added to improve the tensile property of aerial optical cable unit cross-sectional area in external sheath layer 3, from totality
On improve aerial optical cable construction convenience and long-term reliability.
The present invention also provides a kind of manufacture method of above-mentioned aerial optical cable, between nonmetallic reinforcing element 4 and external sheath layer 3
It is integral by heat reactive resin bonding so as to be tightly combined between nonmetallic reinforcing element 4 and external sheath layer 3, can be effective
Improve the overall mechanical properties of external sheath layer 3 in ground.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, without departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of aerial optical cable, it is characterised in that the aerial optical cable includes successively from inside to outside：
Cable core (1), it is formed by multiple fiber units (11) are stranded, and the fiber unit (11) is including sheath (111) and is located at
Optical fiber (112) in the sheath (111)；
Water-blocking element (2), it is arranged at around multiple fiber units (11) along the cable core (1) longitudinal dispersion；
External sheath layer (3), at least one nonmetallic reinforcing element (4) is longitudinally buried in it along the cable core (1), described nonmetallic
Reinforcing element (4) is bonded as one with the external sheath layer (3).
2. aerial optical cable as claimed in claim 1, it is characterised in that：The fiber unit (11) is miniature Loose tube optical fiber list
Unit, ribbon-unit or mini optical fibre Shu Danyuan.
3. aerial optical cable as claimed in claim 1, it is characterised in that：The water-blocking element (2) is water blocking yarn, waterstop or
Water resistance aramid fiber yarn.
4. aerial optical cable as claimed in claim 3, it is characterised in that：It is additionally provided between the external sheath layer (3) and cable core (1)
Tensile elements (5), the tensile elements (5) and the water-blocking element (2) are arranged at multiple along the cable core (1) longitudinal dispersion
Around the fiber unit (11).
5. aerial optical cable as claimed in claim 4, it is characterised in that：The tensile elements (5) are aramid fiber, organdy or glass
Glass fibre-reinforced plastics GFRP bands.
6. the aerial optical cable as described in any one of claim 1 to 5, it is characterised in that：The nonmetallic reinforcing element (4) is
GFRP reinforcements.
7. aerial optical cable as claimed in claim 6, it is characterised in that：The cross section of the GFRP reinforcements is circular, oval
Shape or flat pattern.
8. aerial optical cable as claimed in claim 6, it is characterised in that：The each GFRP reinforcements outer rim is to the outer shield
The minimum range at the edge of jacket layer (3) is 0.5mm.
9. aerial optical cable as claimed in claim 6, it is characterised in that：The quantity of the nonmetallic reinforcing element (4) is two,
Each described nonmetallic reinforcing element (4) is including one or two GFRP reinforcements.
10. a kind of manufacture method of the aerial optical cable as described in any one of claim 1 to 9, it is characterised in that：It is described nonmetallic
It is integral by heat reactive resin bonding between reinforcing element (4) and the external sheath layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097397.4A CN106646799A (en) | 2017-02-22 | 2017-02-22 | Aerial optical cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097397.4A CN106646799A (en) | 2017-02-22 | 2017-02-22 | Aerial optical cable and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106646799A true CN106646799A (en) | 2017-05-10 |
Family
ID=58844745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710097397.4A Pending CN106646799A (en) | 2017-02-22 | 2017-02-22 | Aerial optical cable and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106646799A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020107960A1 (en) * | 2018-11-26 | 2020-06-04 | 南京华信藤仓光通信有限公司 | Sheath-embedded pull-out-connection optical cable and production method therefor |
| CN111796373A (en) * | 2020-07-20 | 2020-10-20 | 江苏中天科技股份有限公司 | Optical cable |
| CN113484964A (en) * | 2021-07-29 | 2021-10-08 | 合肥兴联通讯有限公司 | Nonmetal reinforced optical cable with oval inner cavity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202189174U (en) * | 2011-08-19 | 2012-04-11 | 长飞光纤光缆有限公司 | Tensile loose jacketed stranded optical cable |
| CN202383329U (en) * | 2011-09-21 | 2012-08-15 | 郭继国 | Aerial optical cable |
| CN103424831A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Round ADSS (all-dielectric self-supporting optic fiber cable) |
| CN103941360A (en) * | 2014-03-27 | 2014-07-23 | 江苏通鼎光电股份有限公司 | Novel pipeline optical cable |
-
2017
- 2017-02-22 CN CN201710097397.4A patent/CN106646799A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202189174U (en) * | 2011-08-19 | 2012-04-11 | 长飞光纤光缆有限公司 | Tensile loose jacketed stranded optical cable |
| CN202383329U (en) * | 2011-09-21 | 2012-08-15 | 郭继国 | Aerial optical cable |
| CN103424831A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Round ADSS (all-dielectric self-supporting optic fiber cable) |
| CN103941360A (en) * | 2014-03-27 | 2014-07-23 | 江苏通鼎光电股份有限公司 | Novel pipeline optical cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020107960A1 (en) * | 2018-11-26 | 2020-06-04 | 南京华信藤仓光通信有限公司 | Sheath-embedded pull-out-connection optical cable and production method therefor |
| CN111796373A (en) * | 2020-07-20 | 2020-10-20 | 江苏中天科技股份有限公司 | Optical cable |
| CN113484964A (en) * | 2021-07-29 | 2021-10-08 | 合肥兴联通讯有限公司 | Nonmetal reinforced optical cable with oval inner cavity |
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Application publication date: 20170510 |