CN203643665U - Large-core-number PBT pipe optical fiber composite overhead ground wire - Google Patents
Large-core-number PBT pipe optical fiber composite overhead ground wire Download PDFInfo
- Publication number
- CN203643665U CN203643665U CN201320824509.9U CN201320824509U CN203643665U CN 203643665 U CN203643665 U CN 203643665U CN 201320824509 U CN201320824509 U CN 201320824509U CN 203643665 U CN203643665 U CN 203643665U
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- China
- Prior art keywords
- pbt
- optical fiber
- pipe
- twisted wire
- fiber composite
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- 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.)
- Expired - Lifetime
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 15
- 235000011613 Pinus brutia Nutrition 0.000 claims description 15
- 241000018646 Pinus brutia Species 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000010935 stainless steel Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000000835 fiber Substances 0.000 description 7
- 239000006071 cream Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Communication Cables (AREA)
- Non-Insulated Conductors (AREA)
Abstract
The utility model discloses a large-core-number PBT pipe optical fiber composite overhead ground wire. The large-core-number PBT pipe optical fiber composite overhead ground wire comprises a central reinforced member, an inner twisted wire layer intertwisted at the outside of the central reinforced member, a thermal insulation layer, an aluminum pipe and an outer twisted wire layer, the inner twisted wire layer is formed by a plurality of PBT optical units, the inner twisted wire layer is coated by the thermal insulation layer, the thermal insulation layer is coated by the aluminum pipe, the outer twisted wire layer is formed by a plurality of metal single wires, the outside of the aluminum pipe is intertwisted by at least a layer of the outer twisted wire layer, each PBT optical unit comprises a PBT loose tube with a diameter of 3.0 mm, and 24 optical fibers are arranged in each PBT loose tube. According to the large-core-number PBT pipe optical fiber composite overhead ground wire, the pipe diameter of the loose tubes is increased, the quantity of the containable optical fibers is greatly increased, the communication performance of the OPGW is improved, the diameter of the single wires is reduced, the quantity of outer single wires is increased, the external diameter and the weight of an optical cable is reduced, and the mechanical and the electrical performances are not affected.
Description
Technical field
the utility model relates to a kind of Optical Fiber composite overhead Ground Wire.
Background technology
since last century, the eighties was invented the built on stilts composite ground wire optical cable (OPGW) of optical fiber, in worldwide, be widely used.From 2000 so far, the rapid growth period that this stage is OPGW, OPGW annual requirement is also with 30% speed increment.This demand requires the constantly upgrading of OPGW.Wherein light unit is the core component of OPGW, is mainly bearing OPGW optical fiber communication function, and the structure of light unit generally speaking has two kinds: one is to advocate to use PBT tubular structure take the main flow developed country such as the U.S., Canada as representative; It is another kind of that take other countries as representative, opinion is used pine cover stainless steel tubular type structure.These two kinds of optical cables have relative merits separately.
pine cover stainless steel tubular type OPGW is the product of current comparative maturity, use stainless-steel tube as light unit, colored optical fiber is inserted in sealing weldless steel tube, in pipe, fill the compound that blocks water, the stainless-steel tube that contains optical fiber is twisted into cable core with aluminum-clad steel wire, cable core stranded one deck aluminum-clad steel wire or aluminium alloy wire more outward, this OPGW optical cable is because having simple structure, the features such as high tensile strength and special short-circuit current capability, and be applicable to the reconstruction of various newly-built power circuits and built power circuit.
the shortcoming of pine cover stainless steel tubular type OPGW has: produce couple corrosion because different metal line is in contact with one another formation galvanic effect 1.; 2. stainless loose sleeve pipe is formed by stainless guiding principle welding conventionally, be difficult to accomplish for the big-length weld seam that runs through whole OPGW absolutely intact consistent, just in case have place's solder skip or weldering not firm, will bring fatal harm to the use of whole OPGW; 3. stainless steel fiber unit does not have plastics inner sheath conventionally, and optical fiber is placed directly in stainless-steel tube, and pipe the inside only has optical fiber and fine cream, and effect of heat insulation is bad; 4. remaining long difficult control of the OPGW of individual layer stainless steel tubular type, its reason is that big diameter stainless steel pipe will consume in a large number excess fiber length in Cold Drawing Process, makes optical fiber excess length be difficult to reach the scope of appointment.
conventional P BT light unit Optical Fiber composite overhead Ground Wire can be used under special supply of material region or particular surroundings, as resist electrocorrosion, vibration resistance fatigue, to reduce impact, the PBT light unit of short-circuit current on optical fiber more convenient in the time carrying out joint welding, optical fiber is easily identified.
the shortcoming of conventional P BT light unit Optical Fiber composite overhead Ground Wire is: because pine cover stainless-steel tube can use layer-twisted type structure, increase light element number and meet the demand of high capacity communication circuit to number of fibers, and the number of fibers of existing PBT light unit is take 12 core to 72 cores as main, can not meet message capacity requirement.
Summary of the invention
the utility model object is: provide a kind of large core to count PBT pipe Optical Fiber composite overhead Ground Wire, it has increased the caliber of PBT pine sleeve pipe, improve greatly open ended number of fibers, to improve the communication performance of OPGW, reduce filament diameter simultaneously and increase outer monofilament quantity to reduce cable outer diameter and weight, do not affect its mechanical property and electric property.
the technical solution of the utility model is: a kind of large core is counted PBT pipe Optical Fiber composite overhead Ground Wire, comprise central reinforce member and be stranded in the interior twisted wire layer being formed by multiple PBT light unit outside central reinforce member, be coated on thermofin outside interior twisted wire layer, be coated on the aluminum pipe outside thermofin and at least one deck is stranded outside aluminum pipe, by the meristogenetic outer twisted wire layer of multiple metals, described PBT light unit comprises that diameter is the PBT pine sleeve pipe of 3.0mm, establishes 24 optical fiber in described each PBT pine sleeve pipe.
further technical scheme is: the diameter of described aluminum pipe is 9.5-12.5mm, and the PBT light unit of described interior twisted wire layer is 3-6, and the metal monofilament of described outer twisted wire layer is 12-18, and the diameter of described metal monofilament is 2.5-3.5mm; Described metal monofilament is aluminum-clad steel wire or aluminium alloy wire.
the utility model has the advantages that:
1. the utility model has increased the caliber of PBT pine sleeve pipe, improve greatly open ended number of fibers, to improve the communication performance of OPGW, reduce filament diameter simultaneously and increase outer monofilament quantity to reduce cable outer diameter and weight, do not affect its mechanical property and electric property.
in the utility model, the outer wrapped one deck heat-barrier material of cable core after PBT light unit stranding, without applying cable cream, has reduced environmental pollution.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the sectional view of a kind of embodiment of the utility model.
wherein: 1 central reinforce member; 2 PBT light unit; 21 PBT pine sleeve pipes; 22 optical fiber; 3 thermofins; 4 aluminum pipes; 5 metal monofilament.
Embodiment
embodiment: a kind of large core is counted PBT pipe Optical Fiber composite overhead Ground Wire, comprise central reinforce member 1 and be stranded in the interior twisted wire layer being formed by multiple PBT light unit 2 outside central reinforce member 1, be coated on thermofin 3 outside interior twisted wire layer, be coated on aluminum pipe 4 outside thermofin 3 and the stranded outer twisted wire layer forming of one deck at least outside aluminum pipe 4, by multiple metal monofilament 5, described PBT light unit 2 comprises that diameter is the PBT pine sleeve pipe 21 of 3.0mm, establishes 24 optical fiber 22 in described each PBT pine sleeve pipe 21.Described metal monofilament 5 is aluminum-clad steel wire or aluminium alloy wire.
because interior twisted wire layer is formed by multiple PBT light unit 2, and establish 24 optical fiber 22 in each PBT pine sleeve pipe 21, therefore the utility model fiber capacity maximum can reach 144 cores, with traditional take 12 core to 72 cores compared with main PBT pipe Optical Fiber composite overhead Ground Wire, promote widely message capacity, can under the rugged surroundings such as coastal heavy chemical pollution area, use, have the superior advantage such as anti-electrocorrosion performance, vibration resistance fatigability simultaneously.
as shown in Figure 1, in the present embodiment, the diameter of described aluminum pipe 4 is 11.05mm, and the PBT light unit 2 of described interior twisted wire layer is four, and the metal monofilament 5 of described outer twisted wire layer is 13, and the diameter of described metal monofilament 5 is 3.35mm.
the utility model has increased the caliber of PBT pine sleeve pipe 21, open ended optical fiber 22 quantity are improved greatly, to improve the communication performance of OPGW, reduce metal monofilament 5 diameters simultaneously and increase outer layer metal monofilament 5 quantity to reduce cable outer diameter and weight, do not affect its mechanical property and electric property.In the utility model, the outer wrapped one deck heat-barrier material of cable core after PBT light unit 2 strandings, without applying cable cream, has reduced environmental pollution.
below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (3)
1. a large core is counted PBT pipe Optical Fiber composite overhead Ground Wire, it is characterized in that: comprise central reinforce member (1) and be stranded in the outer interior twisted wire layer being formed by multiple PBT light unit (2) of central reinforce member (1), be coated on the thermofin (3) outside interior twisted wire layer, be coated on the outer aluminum pipe (4) of thermofin (3), and at least one deck is stranded outside aluminum pipe (4), the outer twisted wire layer being formed by multiple metal monofilament (5), described PBT light unit (2) comprises that diameter is the PBT pine sleeve pipe (21) of 3.0mm, in described each PBT pine sleeve pipe (21), establish 24 optical fiber (22).
2. the large core of one according to claim 1 is counted PBT pipe Optical Fiber composite overhead Ground Wire, it is characterized in that: the diameter of described aluminum pipe (4) is 9.5-12.5mm, the PBT light unit (2) of described interior twisted wire layer is 3-6, the metal monofilament (5) of described outer twisted wire layer is 12-18, and the diameter of described metal monofilament (5) is 2.5-3.5mm.
3. the large core of one according to claim 1 and 2 is counted PBT pipe Optical Fiber composite overhead Ground Wire, it is characterized in that: described metal monofilament (5) is aluminum-clad steel wire or aluminium alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824509.9U CN203643665U (en) | 2013-12-16 | 2013-12-16 | Large-core-number PBT pipe optical fiber composite overhead ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824509.9U CN203643665U (en) | 2013-12-16 | 2013-12-16 | Large-core-number PBT pipe optical fiber composite overhead ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643665U true CN203643665U (en) | 2014-06-11 |
Family
ID=50874899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824509.9U Expired - Lifetime CN203643665U (en) | 2013-12-16 | 2013-12-16 | Large-core-number PBT pipe optical fiber composite overhead ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680957A (en) * | 2017-03-21 | 2017-05-17 | 山东太平洋光纤光缆有限公司 | Low-loss aluminum tube type OPGW power optical cable and manufacturing method |
| WO2020037657A1 (en) * | 2018-08-24 | 2020-02-27 | 江苏藤仓亨通光电有限公司 | High-strength and corrosion-resistant optical fiber composite overhead ground wire in aluminum-clad pbt structure |
-
2013
- 2013-12-16 CN CN201320824509.9U patent/CN203643665U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680957A (en) * | 2017-03-21 | 2017-05-17 | 山东太平洋光纤光缆有限公司 | Low-loss aluminum tube type OPGW power optical cable and manufacturing method |
| WO2020037657A1 (en) * | 2018-08-24 | 2020-02-27 | 江苏藤仓亨通光电有限公司 | High-strength and corrosion-resistant optical fiber composite overhead ground wire in aluminum-clad pbt structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |