CN101881868A - Layer stranded type optical cable with three-layer loose tubes - Google Patents
Layer stranded type optical cable with three-layer loose tubes Download PDFInfo
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- CN101881868A CN101881868A CN2010101745456A CN201010174545A CN101881868A CN 101881868 A CN101881868 A CN 101881868A CN 2010101745456 A CN2010101745456 A CN 2010101745456A CN 201010174545 A CN201010174545 A CN 201010174545A CN 101881868 A CN101881868 A CN 101881868A
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Abstract
The invention relates to the optical cable technical field, in particular to a layer stranded type optical cable with three-layer loose tubes, which is characterized by comprising a first layer stranded core (100), a second layer stranded core (200), a third layer stranded core (300) and a sheathing layer (9), wherein, the second layer stranded core (200) is positioned outside the first layer stranded core (100); the third layer stranded core (300) is positioned outside the second layer stranded core (200); and the sheathing layer (9) is positioned outside the third layer stranded core (300). As the three-layer loose tubes are in a nominal structure, the invention has the beneficial effects of low processing risk, less equipment investment, smaller external diameter, lower cost and higher fibre core density.
Description
Technical field
The present invention relates to the optical cable technology field, the layer-stranding cable that particularly a kind of density of optic fibre is higher, cost is lower, external diameter is littler is in particular a kind of layer-stranding cable with three-layer loose tubes.
Background technology
Continuous development along with communication industry, optical cable is widely used, layer-stranding cable commonly used, described in the communication industry standard YD/T 901-2009 of the People's Republic of China (PRC) " layer-twisted type communication outdoor optical cable ", the maximum core number that such optical cable can be accomplished at present is 216 cores, as Fig. 1, it be by the loose sleeve pipe 2 of the reinforcement 5, many that are positioned at central authorities around the stranded ground floor strand core 100 that forms of reinforcement, many loose sleeve pipes 2 around the ground floor strand core 100 stranded second layers strand cores 200 that form and the restrictive coating 9 that is positioned at outside the second layer strand core 200 constituted; Pine comprises multifiber 1 and the filling material 3 that blocks water in the sleeve pipe 2, ground floor strand core 100 surfaces have be filled with in the gap within first protective seam, 4, the first protective seams 4 in water-blocking material 6; Second layer strand core 200 surfaces have in the gap within second protective seam, 8, the second protective seams 8 and are filled with outer water-blocking material 7.And along with the continuous development of Metropolitan Area Network (MAN), the demand that big core is counted optical cable constantly rises, for this reason, operator adopts the pattern of regulation among the YD/T981.3-2009 " Access Network optical fibre band optical cable the 3rd part: loose sleeve layer strand type " usually for the layer-stranding cable more than 216 cores, owing to adopted fibre ribbon, therefore, the quantity of optical fiber can increase in the single loose sleeve pipe, therefore, the fibre core density of optical cable can increase.
Yet, needing special-purpose production equipment owing to produce optical fibre band optical cable, most importantly secondary coated production line, this equipment can be produced the loose sleeve pipe that comprises high fibre core density, and it is big that this kind equipment drops into the amount of money; On the other hand, there is a large amount of risks in the loose sleeve pipe for high fibre core density in the production, in case flaw occurs in the processing, so, whole loose sleeve pipe just may be scrapped, and therefore can cause tremendous loss.
Summary of the invention
At the problems referred to above, the objective of the invention is to utilize the production equipment of existing layer-stranding cable, or only do improvement a little, produce the layer-stranding cable that density is higher, external diameter is littler, cost is lower.The present invention realizes by the following technical solutions:
Layer-stranding cable with three-layer loose tubes is characterized in that it is made of ground floor strand core 100, second layer strand core 200, the 3rd layer of strand core 300, restrictive coating 9; Second layer strand core 200 is positioned at outside the ground floor strand core 100, and the 3rd layer of strand core 300 is positioned at outside the second layer strand core 200, and restrictive coating 9 is positioned at outside the 3rd layer of strand core 300; Ground floor strand core 100 is positioned at outside the reinforcement by the reinforcement 5 that is positioned at central authorities, many and is constituted around stranded loose sleeve pipe 2 of reinforcement and first protective seam 4 that is positioned at outside the loose sleeve pipe 2, comprise within the described loose sleeve pipe 2 in the gap within the multifiber 1 and filling material 3, the first protective seams 4 that block water and be filled with first water-blocking material 6; Many are positioned at outside the ground floor strand core 100 and around the stranded loose sleeve pipe of ground floor strand core 100 and be positioned at second protective seam 8 outside this layer loose sleeve and constitute in the gap within second layers strand cores 200, the second protective seams 8 and be filled with second water-blocking material 7; Many are positioned at outside the second layer strand core 200 and around the stranded loose sleeve pipe of second layer strand core 200 and be positioned at the 3rd protective seam 11 outside this layer loose sleeve and constitute in the 3rd layer of gap within strand core 300, the three protective seams 11 and be filled with the 3rd water-blocking material 10.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described reinforcement 5 is metal or non-genus.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described reinforcement 5 is steel wire or steel strand wires or glass fibre increase plastic bar.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described optical fiber 1 is single-mode fiber or multimode optical fiber or plastic optical fiber.
Above-mentioned described layer-stranding cable with three-layer loose tubes, it is characterized in that: the material of described loose sleeve pipe 2 is polybutylene terephthalate or polypropylene.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the described filling material 3 that blocks water is the fine cream of oil or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first water-blocking material 6 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second water-blocking material 7 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd water-blocking material 10 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the thickness of described restrictive coating 9 is more than or equal to 0.8mm and smaller or equal to 3.0mm; The material of described restrictive coating 9 is low density polyethylene or medium density polyethylene or high density polyethylene or flame-proof polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free polyvinyl or nylon or anti-electric track resistant jacket material.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the part of described loose sleeve pipe 2 can be filled rope and replace.
Owing to have three-layer loose tubes among the present invention, and loose sleeve pipe is the structure of nominal, and therefore the risk of processing is little, does not need banded loose sleeve pipe to produce required secondary coated production line, and therefore, it is little that equipment drops into volume; In addition, to be that 432 core optical cables are example equally, the external diameter of optical fiber ribbon cable is 21.5mm, and external diameter of the present invention only is 19.9mm; Therefore external diameter is littler as can be seen; Because external diameter is littler, so required material still less, cost is lower.
Description of drawings
Fig. 1 is the cross sectional representation of this prior art;
Fig. 2 is the cross-sectional structure synoptic diagram of the invention process example one.
Embodiment
Embodiment one:
Ask for an interview Fig. 2, have the layer-stranding cable of three-layer loose tubes, it is characterized in that it is made of ground floor strand core 100, second layer strand core 200, the 3rd layer of strand core 300, restrictive coating 9; Second layer strand core 200 is positioned at outside the ground floor strand core 100, and the 3rd layer of strand core 300 is positioned at outside the second layer strand core 200, and restrictive coating 9 is positioned at outside the 3rd layer of strand core 300; Ground floor strand core 100 is positioned at outside the reinforcement by the reinforcement 5 that is positioned at central authorities, many and is constituted around stranded loose sleeve pipe 2 of reinforcement and first protective seam 4 that is positioned at outside the loose sleeve pipe 2, comprise within the described loose sleeve pipe 2 in the gap within the multifiber 1 and filling material 3, the first protective seams 4 that block water and be filled with first water-blocking material 6; Many are positioned at outside the ground floor strand core 100 and around the stranded loose sleeve pipe of ground floor strand core 100 and be positioned at second protective seam 8 outside this layer loose sleeve and constitute in the gap within second layers strand cores 200, the second protective seams 8 and be filled with second water-blocking material 7; Many are positioned at outside the second layer strand core 200 and around the stranded loose sleeve pipe of second layer strand core 200 and be positioned at the 3rd protective seam 11 outside this layer loose sleeve and constitute in the 3rd layer of gap within strand core 300, the three protective seams 11 and be filled with the 3rd water-blocking material 10.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described reinforcement 5 is metal or non-genus.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described reinforcement 5 is steel wire or steel strand wires or glass fibre increase plastic bar.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described optical fiber 1 is single-mode fiber or multimode optical fiber or plastic optical fiber.
Above-mentioned described layer-stranding cable with three-layer loose tubes, it is characterized in that: the material of described loose sleeve pipe 2 is polybutylene terephthalate or polypropylene.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the described filling material 3 that blocks water is the fine cream of oil or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first water-blocking material 6 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second water-blocking material 7 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd water-blocking material 10 is petroleum jelly or water-proofing powder or water blocking yarn.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described first protective seam 4, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described second protective seam 8, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11 is for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11 is composite bed, and internal layer is for pricking yarn.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: described the 3rd protective seam 11, its middle part is waterstop or polyester belt or nonwoven layer, and is outside for pricking layer.
Above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the thickness of described restrictive coating 9 is more than or equal to 0.8mm and smaller or equal to 3.0mm; The material of described restrictive coating 9 is low density polyethylene or medium density polyethylene or high density polyethylene or flame-proof polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free polyvinyl or nylon or anti-electric track resistant jacket material.
Further, above-mentioned described layer-stranding cable with three-layer loose tubes is characterized in that: the part of described loose sleeve pipe 2 can be filled rope and replace.
Certainly, above-mentioned described layer-stranding cable with three-layer loose tubes, its outside can also coat multi-protective layer.
Owing to have three-layer loose tubes among the present invention, and loose sleeve pipe is the structure of nominal, and therefore the risk of processing is little, does not need banded loose sleeve pipe to produce required secondary coated production line, and therefore, it is little that equipment drops into volume; In addition, to be that 432 core optical cables are example equally, the external diameter of optical fiber ribbon cable is 21.5mm, and external diameter of the present invention only is 19.9mm; Therefore external diameter is littler as can be seen; Because external diameter is littler, so required material still less, cost is lower.
This paper understands exemplary embodiment of the present invention and present preferred implementation specifically, should be appreciated that the present invention conceives can implement utilization by other various forms, and they drop in protection scope of the present invention equally.
Claims (10)
1. the layer-stranding cable that has three-layer loose tubes is characterized in that it is made of ground floor strand core (100), second layer strand core (200), the 3rd layer of strand core (300), restrictive coating (9); Second layer strand core (200) is positioned at outside the ground floor strand core (100), and the 3rd layer of strand core (300) is positioned at outside the second layer strand core (200), and restrictive coating (9) is positioned at outside the 3rd layer of strand core (300); Ground floor strand core (100) is positioned at outside the reinforcement by the reinforcement (5) that is positioned at central authorities, many and is constituted around stranded loose sleeve pipe (2) of reinforcement and first protective seam (4) that is positioned at outside the loose sleeve pipe (2), comprise multifiber (1) and the filling material that blocks water (3) within the described loose sleeve pipe (2), be filled with first water-blocking material (6) in the gap within first protective seam (4); Many are positioned at outside the ground floor strand core (100) and constitute second layer strand core (200) around stranded loose sleeve pipe of ground floor strand core (100) and second protective seam (8) that is positioned at outside this layer loose sleeve, are filled with second water-blocking material (7) in the gap within second protective seam (8); Many are positioned at outside the second layer strand core (200) and constitute the 3rd layer of strand core (300) around stranded loose sleeve pipe of second layer strand core (200) and the 3rd protective seam (11) that is positioned at outside this layer loose sleeve, are filled with the 3rd water-blocking material (10) in the gap within the 3rd protective seam (11).
2. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: described reinforcement (5) is metal or non-genus.
3. the layer-stranding cable with three-layer loose tubes according to claim 2 is characterized in that: described reinforcement (5) is steel wire or steel strand wires or glass fibre increase plastic bar.
4. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: described optical fiber (1) is single-mode fiber or multimode optical fiber or plastic optical fiber.
5. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: the material of described loose sleeve pipe (2) is polybutylene terephthalate or polypropylene.
6. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: the described filling material that blocks water (3) is the fine cream of oil or water-proofing powder or water blocking yarn; Described second water-blocking material (7) is petroleum jelly or water-proofing powder or water blocking yarn; Described the 3rd water-blocking material (10) is petroleum jelly or water-proofing powder or water blocking yarn.
7. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: described first protective seam (4) is for pricking layer; Described second protective seam (8) is for pricking layer; Described the 3rd protective seam (11) is for pricking layer.
8. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: described first protective seam (4) is a composite bed, and internal layer is for pricking yarn, and the middle level is waterstop or polyester belt or nonwoven fabrics, and is outside for pricking layer; Described second protective seam (8) is a composite bed, and internal layer is for pricking yarn, and the middle level is waterstop or polyester belt or nonwoven fabrics, and is outside for pricking layer; Described the 3rd protective seam (11) is a composite bed, and internal layer is for pricking yarn, and the middle level is waterstop or polyester belt or nonwoven fabrics, and is outside for pricking layer.
9. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: the thickness of described restrictive coating (9) is more than or equal to 0.8mm and smaller or equal to 3.0mm.
10. the layer-stranding cable with three-layer loose tubes according to claim 1 is characterized in that: the material of described restrictive coating (9) is low density polyethylene or medium density polyethylene or high density polyethylene or flame-proof polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or smokeless halogen-free polyvinyl or nylon or anti-electric track resistant jacket material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101745456A CN101881868A (en) | 2010-05-03 | 2010-05-03 | Layer stranded type optical cable with three-layer loose tubes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101745456A CN101881868A (en) | 2010-05-03 | 2010-05-03 | Layer stranded type optical cable with three-layer loose tubes |
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| Publication Number | Publication Date |
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| CN101881868A true CN101881868A (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101745456A Pending CN101881868A (en) | 2010-05-03 | 2010-05-03 | Layer stranded type optical cable with three-layer loose tubes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081208A (en) * | 2011-02-24 | 2011-06-01 | 江苏通鼎光电股份有限公司 | Novel stranded communication optical cable |
| CN103399385A (en) * | 2013-08-20 | 2013-11-20 | 烽火通信科技股份有限公司 | Double-layer stranded all-dry type optical cable |
| CN106383389A (en) * | 2016-07-13 | 2017-02-08 | 周海燕 | Manufacturing method of water blocking powder half-dry type optical cable |
| CN108614337A (en) * | 2018-06-29 | 2018-10-02 | 浙江龙鹰光电科技有限公司 | A kind of high-flexibility two-layer equation optical cable |
-
2010
- 2010-05-03 CN CN2010101745456A patent/CN101881868A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081208A (en) * | 2011-02-24 | 2011-06-01 | 江苏通鼎光电股份有限公司 | Novel stranded communication optical cable |
| CN103399385A (en) * | 2013-08-20 | 2013-11-20 | 烽火通信科技股份有限公司 | Double-layer stranded all-dry type optical cable |
| CN103399385B (en) * | 2013-08-20 | 2015-05-27 | 烽火通信科技股份有限公司 | Double-layer stranded all-dry type optical cable |
| CN106383389A (en) * | 2016-07-13 | 2017-02-08 | 周海燕 | Manufacturing method of water blocking powder half-dry type optical cable |
| CN108614337A (en) * | 2018-06-29 | 2018-10-02 | 浙江龙鹰光电科技有限公司 | A kind of high-flexibility two-layer equation optical cable |
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Application publication date: 20101110 |