CN114706178A - Light and safe all-dielectric self-supporting overhead leading-in optical cable - Google Patents
Light and safe all-dielectric self-supporting overhead leading-in optical cable Download PDFInfo
- Publication number
- CN114706178A CN114706178A CN202210182851.7A CN202210182851A CN114706178A CN 114706178 A CN114706178 A CN 114706178A CN 202210182851 A CN202210182851 A CN 202210182851A CN 114706178 A CN114706178 A CN 114706178A
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- Prior art keywords
- self
- dielectric
- optical fiber
- loose tube
- drop cable
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- 230000003287 optical effect Effects 0.000 title abstract description 28
- 239000013307 optical fiber Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 18
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 3
- 239000003351 stiffener Substances 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
-
- 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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses a light and safe all-dielectric self-supporting aerial drop cable, relates to the technical field of optical cables, and solves the problem or achieves the aim of solving the potential safety hazard problem generated after laying and installing a self-supporting butterfly-shaped optical cable, improving the safety of drop cables entering homes and ensuring the safe operation of optical cable lines. The optical fiber is tightly sleeved, and a layer of curable material is coated on the outer surface of the optical fiber; a buffer layer wrapped around the tight-buffered optical fiber; a loose tube wrapped around the cushioning layer; two non-metal reinforcements respectively arranged on both sides of the loose tube; an outer jacket wrapped over the two non-metallic stiffeners and the loose tube; a color bar extruded over the outer jacket.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to a light and safe all-dielectric self-supporting overhead leading-in optical cable.
Background
Due to the differences of application personnel such as building groups, digital installation modes, laying environments, application areas and the like, great differences are inevitably brought to the requirements of the structure, the performance and the like of the light optical cable for the communication access network. YD/T3349-2018 light optical cable for access networks standard stipulates central tube type, bundle type and layer stranding type structures, and is suitable for outdoor non-self-supporting type light optical cables for access networks in laying modes such as overhead, pipeline, channel, wall hanging, nailing, building guiding and the like. Butterfly cables are currently the most common type of overhead drop cables, primarily using FTTH optical fibers for access to subscriber terminals. In view of the rapidity and convenience of installation, users prefer to use self-supporting butterfly cables. However, in the current engineering application, the eye-support butterfly optical cable has great potential safety hazards in certain application occasions, for example, the steel wire suspension wire of the white-support butterfly optical cable is easy to be introduced by thunder and lightning to cause personnel electric shock accidents, and potential safety hazards are brought to families, transformer substations and the like. Based on this, a lighter and safer all-dielectric self-supporting aerial drop cable was developed.
Disclosure of Invention
In view of the above, the invention provides a light and safe all-dielectric self-supporting aerial drop cable, and mainly aims to solve the potential safety hazard problem generated after laying and installing a self-supporting butterfly-shaped optical cable, improve the safety of drop cables entering homes, and ensure the safe operation of optical cable lines.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a light and safe all-dielectric self-supporting overhead drop cable. It includes:
the outer surface of the tight-buffered optical fiber is coated with a layer of curable material;
a buffer layer wrapped around the tight-buffered optical fiber;
a loose tube wrapped around the cushioning layer;
two non-metal reinforcements respectively arranged on both sides of the loose tube;
an outer jacket wrapped over the two non-metallic stiffeners and the loose tube;
a color bar extruded over the outer jacket.
As mentioned above, the tight-buffered optical fiber is a large-clad optical fiber, and the diameter of the optical fiber is 124.9 +/-0.2 μm.
As described above, the curable material is a silicone resin material.
As mentioned above, the buffer layer is made of acrylate resin material.
As mentioned above, the loose tube is PBT loose tube.
As mentioned above, the non-metal reinforcing member is a composite non-metal rod.
As mentioned above, the outer sheath is a high density low shrinkage low elongation polyethylene sheath.
As mentioned previously, the color bars are reflective color bars.
As mentioned above, further comprising:
a tear cord disposed between the loose tube and the outer sheath.
By the technical scheme, the light and safe all-dielectric self-supporting aerial drop cable at least has the following advantages:
the light and safe all-dielectric self-supporting aerial lead-in optical cable adopts a full-dry type nonmetal structure, has no conductive risk, is uniquely characterized in that a layer of curable material is coated outside a tight-buffered optical fiber, a PBT sleeve is extruded after a buffer layer is coated outside the tight-buffered optical fiber so that the tight-buffered optical fiber and the sleeve are tightly combined, and a special reinforcing material and a sheath material are applied, so that the light and safe all-dielectric self-supporting aerial lead-in optical cable has excellent environment and mechanical properties, is brittle failure of the whole optical cable within a specified force value range, and ensures the safety of the whole line rod after the optical cable is impacted by external force; the invention has the advantages of simple structure, light weight, good mechanical property and transmission property, reasonable design, compact structure and convenient use and maintenance.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a lightweight and safe all-dielectric self-supporting aerial drop cable of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, one embodiment of the present invention provides a lightweight and safe all-dielectric self-supporting aerial drop cable, which includes: tight-buffered optical fiber 1, buffer layer 2, loose tube 3, two nonmetal reinforcers 4, oversheath 5 and ribbon of colours 6.
As shown in FIG. 1, the outer surface of the tight-buffered optical fiber 1 is coated with a layer of curable material, the curable material is made of organic silicon resin material, in the invention, the tight-buffered optical fiber 1 is made of large-clad optical fiber, the diameter of the optical fiber is 124.9 +/-0.2 μm, the concentricity error between the optical fiber and the ferrule is smaller, the fiber core is more centered, the insertion loss of the connector assembly is smaller, and the index data is more stable. The buffer layer 2 is wrapped on the tight-buffered optical fiber 1, and in the invention, the buffer layer 2 is made of acrylate resin material. The loose tube 3 is wrapped on the buffer layer 2, in the invention, the loose tube 3 adopts a PBT loose tube, in the invention, the tight-buffered optical fiber 1 is placed in the PBT loose tube to replace a bare optical fiber, the optical cable is more convenient to prefabricate into an end, the optical fiber protective performance is better, and the optical cable forms a full-dry structure by coating a layer of curable material outside the tight-buffered optical fiber and extruding the PBT loose tube after wrapping the buffer layer 2 outside the tight-buffered optical fiber, so that the optical cable has no conductive risk, and simultaneously, the loose tube can be rapidly stripped by 15-25 cm. The two non-metal reinforcing parts 4 are respectively arranged on two sides of the loose tube 3, and in the invention, the non-metal reinforcing parts adopt composite non-metal rods, so that the loose tube has higher modulus and smaller breaking force. The outer sheath 5 is wrapped on the two non-metal reinforcing pieces and the loose tube, and in the invention, the outer sheath 5 adopts a high-density low-shrinkage low-elongation polyethylene sheath, so that the overall environmental performance index requirement of the optical cable is ensured, and the overall breaking force of the optical cable is ensured to meet the index requirement. The color strip 6 is extruded on the outer sheath 5, and in the invention, the color strip 6 is a reflective color strip, so that the optical cable is convenient to identify. In the present invention, the light-weight safe all-dielectric self-supporting aerial drop cable further comprises: and the tearing rope 7 is arranged between the loose tube 3 and the outer sheath 5, so that the optical cable can be conveniently stripped. In the invention, the whole size of the light and safe all-dielectric self-supporting aerial drop cable is 5.0 +/-0.2 mm, and the whole brittle failure force ensures that 1300N-2000N parts are brittle failure at the same time.
The light and safe all-dielectric self-supporting aerial drop optical cable provided by the embodiment of the invention adopts an all-dry type nonmetal structure, has no conductive risk, is unique in that a layer of curable material is coated outside a tight-buffered optical fiber, and a PBT sleeve is extruded after a buffer layer is coated outside the tight-buffered optical fiber so that the tight-buffered optical fiber and the sleeve are tightly combined, and is applied by a special reinforcing material and a sheath material, so that the light and safe all-dielectric self-supporting aerial drop optical cable has excellent environment and mechanical properties, is integrally brittle-broken within a specified force value range, and ensures the safety of the whole line rod after the optical cable is impacted by external force; the invention has the advantages of simple structure, light weight, good mechanical property and transmission property, reasonable design, compact structure and convenient use and maintenance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a light safe all-dielectric self-supporting aerial drop cable which characterized in that: it includes:
the outer surface of the tight-buffered optical fiber is coated with a layer of curable material;
a buffer layer wrapped around the tight-buffered optical fiber;
a loose tube wrapped around the cushioning layer;
two non-metal reinforcements respectively arranged on both sides of the loose tube;
an outer jacket wrapped over the two non-metallic stiffeners and the loose tube;
a color bar extruded over the outer jacket.
2. The lightweight, secure all-dielectric, self-supporting aerial drop cable of claim 1,
the tight-buffered optical fiber adopts a large-cladding optical fiber, and the diameter of the optical fiber is 124.9 +/-0.2 mu m.
3. The lightweight, secure all-dielectric, self-supporting aerial drop cable of claim 1,
the curable material adopts a silicone resin material.
4. The lightweight, secure all-dielectric, self-supporting aerial drop cable of claim 1,
the buffer layer is made of acrylate resin materials.
5. A lightweight, secure, all-dielectric, self-supporting aerial drop cable as defined in claim 1,
the loose tube is made of PBT loose tube.
6. A lightweight, secure, all-dielectric, self-supporting aerial drop cable as defined in claim 1,
the non-metal reinforcing part is a composite non-metal rod.
7. The lightweight, secure all-dielectric, self-supporting aerial drop cable of claim 1,
the outer sheath is made of high-density low-shrinkage low-elongation polyethylene.
8. A lightweight, secure, all-dielectric, self-supporting aerial drop cable as defined in claim 1,
the color strips are reflective color strips.
9. The lightweight, secure all-dielectric, self-supporting aerial drop cable of claim 1, further comprising:
a tear cord disposed between the loose tube and the outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182851.7A CN114706178A (en) | 2022-02-25 | 2022-02-25 | Light and safe all-dielectric self-supporting overhead leading-in optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182851.7A CN114706178A (en) | 2022-02-25 | 2022-02-25 | Light and safe all-dielectric self-supporting overhead leading-in optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114706178A true CN114706178A (en) | 2022-07-05 |
Family
ID=82167698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210182851.7A Pending CN114706178A (en) | 2022-02-25 | 2022-02-25 | Light and safe all-dielectric self-supporting overhead leading-in optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114706178A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208790B1 (en) * | 1999-01-28 | 2001-03-27 | The Stewart Group, Inc. | Ultra violet light curable polymer matrix for tight-buffering optical fibers |
| CN101620301A (en) * | 2008-07-04 | 2010-01-06 | 宏安集团有限公司 | Optical fiber cable |
| CN202034121U (en) * | 2011-05-17 | 2011-11-09 | 宏安集团有限公司 | Photoelectric combined cable |
| CN202196211U (en) * | 2011-08-11 | 2012-04-18 | 江苏亨通光电股份有限公司 | 8-shaped self-supporting aerial optical cable with color strips on surface |
| CN203054288U (en) * | 2012-12-10 | 2013-07-10 | 沈阳亨通光通信有限公司 | Anti-peck all-dielectric self-supporting optical cable |
| CN203688865U (en) * | 2013-12-13 | 2014-07-02 | 江苏亨通光电股份有限公司 | Novel self-supporting type leading-in optical cable |
| CN104267477A (en) * | 2014-10-20 | 2015-01-07 | 安徽天龙电器线缆集团有限公司 | High-capacity and low-loss full-dry type optical cable |
| CN204832613U (en) * | 2015-07-24 | 2015-12-02 | 成都亨通光通信有限公司 | Can take optical cable by applied glass fibre of multiple environment outside indoor |
| CN205427276U (en) * | 2016-03-28 | 2016-08-03 | 宏安集团有限公司 | Optical cable for field operations |
| CN107367812A (en) * | 2017-09-04 | 2017-11-21 | 江苏亨通光电股份有限公司 | The parallel stiffener flexible optical cable of central tubular and fiber optic cable manufacture method |
| US20210048591A1 (en) * | 2018-01-29 | 2021-02-18 | Prysmian S.P.A. | Fire Resistant Fiber Optic Cable |
| CN113625407A (en) * | 2021-09-07 | 2021-11-09 | 江苏亨通光电股份有限公司 | Optical cable |
-
2022
- 2022-02-25 CN CN202210182851.7A patent/CN114706178A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6208790B1 (en) * | 1999-01-28 | 2001-03-27 | The Stewart Group, Inc. | Ultra violet light curable polymer matrix for tight-buffering optical fibers |
| CN101620301A (en) * | 2008-07-04 | 2010-01-06 | 宏安集团有限公司 | Optical fiber cable |
| CN202034121U (en) * | 2011-05-17 | 2011-11-09 | 宏安集团有限公司 | Photoelectric combined cable |
| CN202196211U (en) * | 2011-08-11 | 2012-04-18 | 江苏亨通光电股份有限公司 | 8-shaped self-supporting aerial optical cable with color strips on surface |
| CN203054288U (en) * | 2012-12-10 | 2013-07-10 | 沈阳亨通光通信有限公司 | Anti-peck all-dielectric self-supporting optical cable |
| CN203688865U (en) * | 2013-12-13 | 2014-07-02 | 江苏亨通光电股份有限公司 | Novel self-supporting type leading-in optical cable |
| CN104267477A (en) * | 2014-10-20 | 2015-01-07 | 安徽天龙电器线缆集团有限公司 | High-capacity and low-loss full-dry type optical cable |
| CN204832613U (en) * | 2015-07-24 | 2015-12-02 | 成都亨通光通信有限公司 | Can take optical cable by applied glass fibre of multiple environment outside indoor |
| CN205427276U (en) * | 2016-03-28 | 2016-08-03 | 宏安集团有限公司 | Optical cable for field operations |
| CN107367812A (en) * | 2017-09-04 | 2017-11-21 | 江苏亨通光电股份有限公司 | The parallel stiffener flexible optical cable of central tubular and fiber optic cable manufacture method |
| US20210048591A1 (en) * | 2018-01-29 | 2021-02-18 | Prysmian S.P.A. | Fire Resistant Fiber Optic Cable |
| CN113625407A (en) * | 2021-09-07 | 2021-11-09 | 江苏亨通光电股份有限公司 | Optical cable |
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