CN115629454B - Anti-air-blowing dancing ADSS optical cable and erection method thereof - Google Patents
Anti-air-blowing dancing ADSS optical cable and erection method thereof Download PDFInfo
- Publication number
- CN115629454B CN115629454B CN202211562685.XA CN202211562685A CN115629454B CN 115629454 B CN115629454 B CN 115629454B CN 202211562685 A CN202211562685 A CN 202211562685A CN 115629454 B CN115629454 B CN 115629454B
- Authority
- CN
- China
- Prior art keywords
- blowing
- air
- optical cable
- adss optical
- outer sheath
- 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
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The invention discloses an anti-air-blowing-waving ADSS optical cable and an erection method thereof. The erection method comprises the following steps: after the air blowing waving resistant ADSS optical cable is erected, the reinforcing member is located right below the optical unit. The air-blowing waving resistant ADSS optical cable has the oval outer edge, is matched with the air-blowing pipeline eccentrically arranged on the long axis, reinforces the short axis side direction of the ADSS optical cable, and limits the side shake of the optical cable, so that the air-blowing pipeline is stabilized during air-blowing operation, and the air-blowing laying distance of a cable core is increased.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to an anti-air-blowing dancing ADSS optical cable and an erection method thereof.
Background
The all-dielectric self-supporting optical cable (ADSS optical cable) has the advantages of no metal, tension resistance, self-supporting, high insulation, no inductivity, thin diameter, light weight, easy construction, economy and the like. The optical fiber bundle is wound on a central reinforcing member and is manufactured into a combined optical cable through protection measures such as insulation, water prevention, reinforcement, sheath and the like. Generally, the ADSS cable is installed by using a tower on or near a power line, and the installation span of the ADSS cable is far beyond that of a general cable.
In general, an ADSS optical cable used in an overhead manner is installed by placing optical fibers in a loose tube, twisting the optical fibers together with a central reinforcing core into a cable core, and then cabling the optical fibers. Chinese patent document CN114114570A provides a flat self-supporting overhead composite optical cable, which realizes a technical scheme of firstly erecting an optical cable and using the optical cable as an air-blowing micro-tube, and realizing secondary air-blowing laying of a cable core. The technology has many advantages, and the installation difficulty of first laying and subsequent expansion is simplified.
However, it has been shown in practice that the ADSS cable is used as an air-blown micro tube, and the distance of laying is much shorter than that of a general installed cable, typically, an indoor installed cable. The ADSS optical cable is generally long in laying distance, and popularization and application of the ADSS optical cable serving as the air-blowing micro-tube are limited.
Disclosure of Invention
Aiming at the defects or improvement requirements in the prior art, the invention provides the air-blowing waving resistant ADSS optical cable and the erection method thereof.
To achieve the above object, according to one aspect of the present invention, there is provided an anti-blowing waving ADSS optical cable including an optical unit, a blowing duct, a glass yarn, and an outer sheath, the optical unit being disposed in the blowing duct in a blowing manner, the glass yarn being wound around an outer wall of the blowing duct, the outer sheath wrapping the glass yarn, the outer sheath being embedded with a reinforcing member, wherein:
when the anti-blowing-waving ADSS optical cable is in a straight line state during straightening, on the cross section of the anti-blowing-waving ADSS optical cable, the outer edge of the outer sheath is oval, the blowing pipeline is circular and is arranged eccentrically relative to the outer sheath, the long axis of the outer edge of the outer sheath passes through the center of the blowing pipeline, the long axis of the outer edge of the outer sheath is provided with a first end point and a second end point, the distance from the first end point to the blowing pipeline is larger than the distance from the second end point to the blowing pipeline, the reinforcement is circular, the long axis of the outer edge of the outer sheath passes through the center of the reinforcement, the reinforcement is located between the first end point and the blowing pipeline, and the reinforcement is spaced from the outer sheath and the blowing pipeline.
Preferably, the air blowing pipeline is a plastic pipe with a smooth inner wall.
Preferably, the outer diameter of the air blowing pipeline is 5 mm-12 mm, and the wall thickness is 0.8 mm-1.5 mm.
Preferably, the total thickness of the glass yarn layer formed by winding the glass yarn on the outer wall of the air blowing pipeline is 0.3-0.5 mm.
Preferably, the diameter of the reinforcing piece is 2 mm-4 mm.
Preferably, the thickness of the outer sheath is 1 mm-2 mm.
Preferably, the number of the reinforcing members is two and there is a spacing between two reinforcing members, each of the reinforcing members being located between the first end point and the air-blowing duct, each of the reinforcing members being spaced from both the outer sheath and the air-blowing duct.
Preferably, the outer edge of the outer sheath has a long axis with a length L1, the outer sheath has a center of gravity at a distance L2 from the first end point, and L2= L1/3.
Preferably, the duty cycle of the light unit is 30% -70%.
According to another aspect of the present invention, there is also provided an erection method of the anti-air-blowing dancing ADSS optical cable, wherein the strength member is located right below the optical unit after the anti-air-blowing dancing ADSS optical cable is erected.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) The air-blowing waving resistant ADSS optical cable provided by the invention has an oval outer edge, is matched with an air-blowing pipeline eccentrically arranged on a long axis, reinforces the short axis side direction of the ADSS optical cable, and limits the side shake of the optical cable, so that the air-blowing pipeline is stabilized during air-blowing operation, and the air-blowing laying distance of a cable core is increased. The optimal scheme is matched with the design of the lower center of gravity, and the tumbler effect is applied, so that the ADSS self weight resists vertical galloping caused by air blowing, the amplitude is reduced, the air blowing pipeline is further stabilized, air blowing galloping is resisted, and the laying distance is increased.
2) The optical cable adopts oval structure, and the reinforcement of major axis direction has improved the tensile bending resistance of optical cable, reduces the optical cable and hangs down and the optic fibre meets an emergency under the action of gravity to optical cable installation back stress mainly concentrates on the part that the optical cable downside contains the reinforcement, can effectively guarantee that optic fibre meets the requirements for meeting an emergency, therefore need not the aramid fiber armor, greatly reduced product cost.
3) The optical cable adopts the air-blowing mode to lay in the later stage, and the air-blowing optical cable has great free space in the pipeline, avoids optic fibre direct atress when the optical cable is tensile to be favorable to adopting suitable optic fibre core number as required.
Drawings
FIG. 1 is a schematic view of an anti-air blowing ADSS cable of the present invention employing two strength members;
fig. 2 is a schematic view of the anti-blowing dancing ADSS optical cable of the present invention employing a reinforcing member.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-outer sheath, 2-glass yarn, 3-air blowing pipeline, 4-optical unit and 5-reinforcing piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Different from the common optical cable, the ADSS optical cable is laid synchronously with the cable in the main application scene, the span is equivalent to the cable, and the ADSS optical cable belongs to the application scene of large span. Under the large-span scene, the larger sag caused by the action of gravity directly causes the tensile force action of the ADSS optical cable, so that the pipeline for laying the microtubes is obviously deformed. In the air blowing laying, high-pressure air is used for blowing the cable core into the air blowing micro-pipe, and the air pressure is very high and is 10-15 BAR. Under the action of high-pressure air, the wave-shaped vibration of the ADSS optical cable with the arc sag deformation occurs, the cable body firstly waves like sine waves, and then the side waves occur due to the very large span. In the air blowing process, because the ADSS has large span and obvious sag, the optical cable has large shaking amplitude in the vertical direction and the lateral direction, so that the actual air blowing laying is difficult to obtain good effect, and the air blowing with longer span cannot be realized. Meanwhile, the swing caused by air blowing causes the ADSS optical cable to receive obvious tension, and the structure of the cable body, particularly the integrity of the air blowing pipeline, can be damaged.
The structure of the anti-blowing waving ADSS optical cable provided by the invention refers to fig. 1 and 2, and the ADSS optical cable comprises an optical unit 4, an air blowing pipeline 3, glass yarns 2 and an outer sheath 1, wherein the optical unit 4 is arranged in the air blowing pipeline 3 in an air blowing mode, and in order to ensure the number and the surplus length of the optical units 4, the optical fibers of the optical units 4 are stranded together in a layer-stranded mode. The air-blowing pipeline 3 is a plastic pipe with a smooth inner wall, so that the optical unit 4 can be conveniently laid in the air-blowing pipeline 3 in an air-blowing mode, the outer diameter of the air-blowing pipeline 3 is 5 mm-12 mm, and the wall thickness is 0.8 mm-1.5 mm. The glass yarn 2 is wound on the outer wall of the air blowing pipeline 3, and the total thickness of the glass yarn 2 layers formed by winding the glass yarn 2 on the outer wall of the air blowing pipeline 3 is 0.3 mm-0.5 mm. The outer sheath 1 wraps the glass yarn 2, and the thickness of the outer sheath 1 is 1 mm-2 mm. The reinforcement piece 5 is embedded in the outer sheath 1, when the anti-air-blowing-waving ADSS optical cable is in a straight line state, the outer edge of the outer sheath 1 is oval, the air-blowing pipeline 3 is circular, the air-blowing pipeline 3 is arranged eccentrically relative to the outer sheath 1, namely the two air-blowing pipelines are not concentric, the long axis of the outer edge of the outer sheath 1 passes through the center of the air-blowing pipeline 3, the long axis of the outer edge of the outer sheath 1 is provided with a first end point and a second end point, the distance from the first end point to the air-blowing pipeline 3 is larger than the distance from the second end point to the air-blowing pipeline 3, the reinforcement piece 5 is an FRP (fiber reinforced plastic) strip, the reinforcement piece 5 is circular, the number of the reinforcement piece 5 can be one or two, the diameter of the reinforcement piece 5 is 2mm to 4mm, the long axis of the outer edge of the outer sheath 1 passes through the center of the reinforcement piece 5, the reinforcement piece 5 is located between the first end point and the air-blowing pipeline 3, and a distance exists between the reinforcement piece 5 and the air-blowing pipeline 1 and the air-blowing pipeline 3.
Different from the design that the two sides of the flat air-blown microtube outer sheath are not reinforced, the oval outer sheath realizes the reinforcement of the two sides of the cross section of the ADSS optical cable. The air-blowing pipeline is arranged at one end of the oval optical cable, the sheath material filling at the short axis of the oval is obviously enhanced, and the lateral bending of the ADSS optical cable is limited on the whole optical cable, so that the shaking of the two sides of the ADSS optical cable during air-blowing installation of the cable core is reduced.
Further, the number of the reinforcing members 5 is preferably two (refer to fig. 1), and there is a space between two reinforcing members 5, each of the reinforcing members 5 is located between the first end point and the air blowing duct 3, and each of the reinforcing members 5 is located at a space between the outer sheath 1 and the air blowing duct 3.
Further, the length of the long axis of the outer edge of the outer sheath 1 is L 1 The distance from the center of gravity of the outer sheath 1 to the first end point is L 2 And L is 2 = L 1 And/3, the cable can generate a tumbler effect, the stability of the cable is kept after the cable is erected, and the cable can resist air blowing and waving.
The air-blowing waving is caused by the deformation of the air-blowing pipeline due to the arc sag, and the invention skillfully utilizes the tumbler effect to ensure that the ADSS optical cable always keeps the reinforcement below the reinforcement to maintain the arc sag state. Therefore, the anti-blowing waving ADSS optical cable provided by the invention can resist the waving in the vertical direction caused by the air-blowing operation by using the self-weight, weaken the initiation of the vertical waving to the lateral waving by using the tumbler effect, maintain the stability of the ADSS optical cable during air-blowing by matching with the limitation of the oval cross section to the lateral waving, and resist the waving caused by air-blowing, thereby improving the air-blowing installation distance of the cable core.
According to another aspect of the present invention, there is provided a method of erecting an anti-blowing waving ADSS cable, in which after the anti-blowing waving ADSS cable is erected, the reinforcing member is located right below the light unit, that is, the center lines of the two are in the same vertical plane. After the air blowing dancing resistant ADSS optical cable is horizontally erected, when the air blowing dancing resistant ADSS optical cable is in a straight line state, on the cross section of the air blowing dancing resistant ADSS optical cable, the long shaft of the outer edge of the outer sheath 1 is vertically arranged, the first end point is located below the second end point, and if an arc sag is generated during use, the reinforcing piece is also located right below the optical unit.
The strength member 5 of the present invention improves the tensile and bending resistance of the optical cable and lowers the position of the center of gravity of the optical cable, and when the optical cable sags due to gravity after installation, the optical cable can maintain the state that the air blowing duct 3 is above and the strength member 5 is below because the part containing the strength member 5 is heavier, and the stress is mainly concentrated on the part containing the strength member 5 at the lower side, thereby providing better protection for the air blowing duct 3. The proportion (duty cycle) of the cross section of light unit 4 and the hole sectional area of air-blowing pipeline 3 is 30% ~70%, makes light unit 4 have great free space in air-blowing pipeline 3 like this, and light unit 4 can not direct atress when the optical cable receives the drawing, can effectively guarantee that optic fibre meets the requirements for meeting an emergency, and consequently the optical cable need not armor aramid fiber, bonds and takes place to warp for avoiding air-blowing pipeline 3 and sheath, extrudes oversheath 1 behind one deck glass yarn 2 is pricked to the outsourcing of air-blowing pipeline 3.
The difference between fig. 2 and fig. 1 is that only one reinforcement 5 is contained in the sheath, the rest of the construction being identical to that of fig. 1.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides an anti air-blowing dancing ADSS optical cable which characterized in that, includes light unit, air-blowing pipeline, glass yarn and oversheath, the light unit sets up with the mode of air-blowing in the air-blowing pipeline, the glass yarn winding is in on the outer wall of air-blowing pipeline, the oversheath parcel the glass yarn, inlay in the oversheath and be equipped with the reinforcement, wherein:
when the anti-blowing dancing ADSS optical cable is straightened to be in a linear state, on the cross section of the anti-blowing dancing ADSS optical cable, the outer edge of the outer sheath is oval, the blowing pipeline is circular and is eccentrically arranged relative to the outer sheath, the long axis of the outer edge of the outer sheath passes through the center of the blowing pipeline, the long axis of the outer edge of the outer sheath is provided with a first end point and a second end point, the distance from the first end point to the blowing pipeline is larger than the distance from the second end point to the blowing pipeline, the reinforcing member is circular, the long axis of the outer edge of the outer sheath passes through the center of the reinforcing member, the reinforcing member is located between the first end point and the blowing pipeline, and the reinforcing member is spaced from the outer sheath and the blowing pipeline;
the outer edge of the outer sheath has a long axis with a length L 1 The distance from the center of gravity of the outer sheath to the first end point is L 2 And L is 2 = L 1 /3。
2. An anti-blowing-fluctuation ADSS optical cable according to claim 1, wherein the blowing duct is a plastic tube having a smooth inner wall.
3. The ADSS optical cable of claim 1, wherein the air blowing duct has an outer diameter of 5mm to 12mm and a wall thickness of 0.8 mm to 1.5mm.
4. An ADSS optical cable according to claim 1, wherein the glass yarn is wound around the outer wall of the air blowing duct to form a glass yarn layer having a total thickness of 0.3mm to 0.5mm.
5. An anti-blowing ADSS optical cable according to claim 1, wherein the strength member has a diameter of 2-4 mm.
6. An anti-air blowing dancing ADSS optical cable as claimed in claim 1, wherein the outer sheath has a thickness of 1-2 mm.
7. An anti-airlock ADSS cable according to claim 1, wherein the number of strength members is two and a spacing exists between the two strength members, each strength member being located between the first end point and the air blowing duct, each strength member being spaced from both the outer jacket and the air blowing duct.
8. An anti-blowing ADSS optical cable according to claim 1, wherein the duty cycle of the light unit is 30-70%.
9. The method for erecting an anti-air-blowing-dancing ADSS optical cable according to any one of claims 1-8, wherein the reinforcement member is located directly below the light unit after the anti-air-blowing-dancing ADSS optical cable is erected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211562685.XA CN115629454B (en) | 2022-12-07 | 2022-12-07 | Anti-air-blowing dancing ADSS optical cable and erection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211562685.XA CN115629454B (en) | 2022-12-07 | 2022-12-07 | Anti-air-blowing dancing ADSS optical cable and erection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115629454A CN115629454A (en) | 2023-01-20 |
| CN115629454B true CN115629454B (en) | 2023-04-07 |
Family
ID=84910092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211562685.XA Active CN115629454B (en) | 2022-12-07 | 2022-12-07 | Anti-air-blowing dancing ADSS optical cable and erection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115629454B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116149000B (en) * | 2023-04-24 | 2023-07-07 | 长飞光纤光缆股份有限公司 | Detachable overhead line for communication and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010062646A1 (en) * | 2008-10-28 | 2010-06-03 | Adc Telecommunications, Inc. | Flat drop cable |
| CN201383022Y (en) * | 2009-04-17 | 2010-01-13 | 长飞光纤光缆有限公司 | All-dielectric miniature optical cable for single loose sleeve |
| CN113917637B (en) * | 2021-10-26 | 2022-11-18 | 长飞光纤光缆股份有限公司 | All-dielectric optical cable and laying method thereof |
| CN114706179B (en) * | 2022-04-06 | 2023-09-01 | 富通集团（嘉善）通信技术有限公司 | Wind-light-resistant cable |
-
2022
- 2022-12-07 CN CN202211562685.XA patent/CN115629454B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115629454A (en) | 2023-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115629454B (en) | Anti-air-blowing dancing ADSS optical cable and erection method thereof | |
| CN101546019A (en) | UV optical cable | |
| WO2022135075A1 (en) | Optical cable | |
| CN112782818A (en) | Easy-to-peel flat branch remote optical cable | |
| CN107797206A (en) | The production equipment and its production method of high-density optical-fiber beam micro unit optical cable | |
| CN114114570B (en) | Flat self-supporting overhead composite optical cable based on skeleton optical cable | |
| CN114121373B (en) | 8-shaped framework type air-blowing composite optical cable | |
| CN101408651B (en) | Super-fine super-anti-bending super-high intensity guiding optical cable | |
| CN203825254U (en) | Indoor-outdoor dual-purpose butterfly-shaped optical cable capable of meeting self-bearing overhead and pipeline introduction requirements | |
| CN215449693U (en) | Indoor tensile waterproof rubber-insulated optical cable | |
| WO2010101092A1 (en) | Optical fiber cable having single tube | |
| WO2017020369A1 (en) | Lightweight all-dielectric self-supporting optical cable | |
| CN201222110Y (en) | Furcation-easy type covered wire optical cable | |
| CN2629052Y (en) | Central bundle type optical cable with excellent bending performance | |
| CN202041690U (en) | Folding-resistance flexible butterfly leading-in cable | |
| CN207799188U (en) | A kind of aerial cable of novel building | |
| CN203981930U (en) | A kind of embedded sheath beam tube type air-blowing minisize optical cable | |
| CN2556664Y (en) | New full medium optic cable | |
| CN220473748U (en) | Fusiform long-span wind-resistant self-supporting optical cable | |
| CN201096933Y (en) | A non-metal outdoor inside and outside armoured soft cable | |
| CN109001878A (en) | A kind of flexibility all dielectric self-supporting butterfly leading in cable | |
| CN216696784U (en) | Novel windowing type optical cable | |
| CN205910384U (en) | Counter -bending pipeline of absolutely dry formula output optical cable | |
| CN210864135U (en) | Side pressure resistant outdoor overhead and indoor wiring optical cable | |
| CN216901090U (en) | Air-blowing optical cable |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |