WO2015024443A1 - Câble optique du type entièrement sec à brin double couche - Google Patents

Câble optique du type entièrement sec à brin double couche Download PDF

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Publication number
WO2015024443A1
WO2015024443A1 PCT/CN2014/083761 CN2014083761W WO2015024443A1 WO 2015024443 A1 WO2015024443 A1 WO 2015024443A1 CN 2014083761 W CN2014083761 W CN 2014083761W WO 2015024443 A1 WO2015024443 A1 WO 2015024443A1
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WO
WIPO (PCT)
Prior art keywords
layer
double
optical cable
yarn
tubes
Prior art date
Application number
PCT/CN2014/083761
Other languages
English (en)
Chinese (zh)
Inventor
陈黎明
祁庆庆
王世颖
史惠萍
Original Assignee
烽火通信科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 烽火通信科技股份有限公司 filed Critical 烽火通信科技股份有限公司
Priority to BR112016002582-2A priority Critical patent/BR112016002582B1/pt
Publication of WO2015024443A1 publication Critical patent/WO2015024443A1/fr

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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
    • G02B6/441—Optical cables built up from sub-bundles
    • G02B6/4413—Helical structure
    • 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

Definitions

  • the invention relates to the field of communication optical cables, in particular to a double-layer twisted full-dry optical cable. Background technique
  • the length of the cabled fiber is small, so a thicker cable or more reinforcing members are required to withstand external forces;
  • the object of the present invention is to overcome the deficiencies of the above background art, and provide a double-layer twisted full-dry optical cable with a maximum core number of 288 cores, avoiding filling grease, maintaining the water blocking performance of the optical cable, and reducing the optical cable.
  • the weight significantly improves the mechanical performance of the cable, improves the construction connection efficiency, and protects the environment.
  • the invention provides a double-layer twisted full-dry optical cable, comprising a central reinforcing component, the central reinforcing component comprises a reinforcing core, and further comprises a double-layer twisted cable core, a water blocking tape, a reinforcing yarn and The outer sheath layer, the outer surface of the central reinforcing component is spirally wrapped with 1 to 4 water blocking yarns having a linear density of 3000-5000 dtex, and a double-layer twisted cable core is disposed outside the center reinforcing component,
  • the layer twisted cable core is synthesized by SZ twisting of inner and outer two-layer loose tubes, and the double-layer twisted cable core has the following three structures:
  • the loose tube is a full-dry loose tube, each loose tube contains 12 fibers and 1 to 2 water-resistant yarns with a linear density of 1000-2000 dtex, and does not contain ointment;
  • the outer layer of the double-layer loose tube and the entire double-layer twisted cable core are covered with a water blocking strip, and the surface of the water blocking strip of the outer layer of the double-layer twisted cable core is spirally wrapped with a layer of reinforcing yarn to enhance the yarn.
  • the whole cable is a full dry structure.
  • the loose tube is made of polybutylene terephthalate PBT or modified polypropylene.
  • the reinforcing core is made of phosphating steel wire, galvanized steel wire, glass fiber reinforced plastic rod GFRP or aramid fiber reinforced plastic rod KFRP.
  • the water blocking tape is a double-sided non-woven water blocking tape.
  • the double-sided non-woven fabric water blocking tape has a thickness of 0.15 - 0.3 mm.
  • the reinforcing yarn is an aramid fiber yarn or a glass fiber yarn.
  • the linear density of the tear cord is 3000 to 6000 dtex.
  • the outer sheath layer is made of linear low density polyethylene LLDPE, medium density polyethylene MDPE, high density polyethylene HDPE, halogen free low smoke. Made of any material in flame retardant LSZH.
  • the center reinforcing component further comprises a plastic cushion layer, and the outer surface of the reinforcing core is covered with a plastic cushion layer of polyethylene material.
  • the outer sheath layer has a thickness of 1.2 to 2.0 mm.
  • the present invention adopts a double-layer dry loose tube, the number of loose tubes can reach 24, and the number of fibers in each loose tube is 12, so the maximum number of cores of the fiber can reach 288 cores.
  • the invention adopts a dry water-blocking method of double-layer dry loose tube and water blocking belt to avoid filling grease, which not only maintains the water blocking performance of the cable, but also reduces the weight of the cable and improves the construction connection efficiency, and protect environment.
  • the present invention adopts a loose-layer twisted structure, which has a larger fiber length than the central tubular-type cable and the layer-wound ribbon cable, and the tensile length of the optical fiber can reach 1%, which can significantly improve the optical cable.
  • Mechanical properties
  • the optical cable of the invention has good flame retardant performance, and the burning smoke is obviously lower than that of the strip-filled optical cable filled with the ointment, and is applicable to various construction environments, and can be laid by overhead, pipeline, direct burying, etc., and the construction is fast and fast, and the protection is fast. surroundings.
  • FIG. 1 is a schematic view showing the structure of a double-layer twisted full-dry optical cable of an outer layer 6 tube outer tube 12 tube in an embodiment of the present invention.
  • Fig. 2 is a structural schematic view showing the double-layer twisted full-dry optical cable of the inner tube 7 tube outer tube 13 tube in the embodiment of the present invention.
  • Fig. 3 is a structural schematic view showing a double-layer twisted full-dry optical cable of an outer layer 9 tube outer tube 15 tube according to an embodiment of the present invention.
  • an embodiment of the present invention provides a double-layer twisted full-dry optical cable, comprising a center reinforcing component, a double-layer twisted cable core, a water blocking tape 5, a reinforcing yarn 6 and an outer sheath layer.
  • the central reinforcing component comprises a reinforcing core 3, and a plastic cushion 9 of polyethylene material may be wrapped on the outer surface of the reinforcing core 3.
  • the outer surface of the central reinforcing component is spirally wrapped with 1 to 4 linear densities of 3000 to 5000 dtex (dtex is a tex, which refers to the number of 10,000 m long fiber bundles, linear density units, commonly used in the textile industry).
  • Yarn 4 a double-layer twisted cable core is arranged outside the center reinforcing component, and the double-layer twisted cable core is synthesized by SZ twisting of the inner and outer two-layer loose tube 2.
  • the double-layer twisted cable core has the following three structures:
  • Loose tube 2 is a full dry loose tube, using PBT (Polybutylece
  • Each loose tube 2 contains 12 fibers 1 and 1 to 2 water-blocking yarns 4 with a linear density of 1000-2000 dtex, and does not contain grease; between the inner and outer two-layer loose tubes and the entire double-layer twisted core
  • the outer layer is covered with a water blocking strip 5, and the outer surface of the water blocking strip 5 on the outer layer of the double-layer twisted cable core is spirally wrapped with a reinforcing yarn 6, and the reinforcing yarn 6 is provided with 1 to 2 tearing cords 8,
  • An outer sheath layer 7 having a thickness of 1.2 to 2.0 mm is disposed outside the reinforcing yarn 6, and the entire optical cable is of a full dry structure.
  • the water blocking tape 5 is a double-sided non-woven water blocking tape having a thickness of 0.15 to 0.3 mm.
  • the reinforcing yarn 6 may be an aramid fiber yarn or a glass fiber yarn.
  • the linear density of the tear cord 8 is 3000 to 6000 dtex.
  • the outer sheath layer 7 is made of LLDPE (Linear Low Density Polyethylene), MDPE (Medium Density Polyethylene), HDPE (High Density Polyethylene), LSZH (Low Smoke Zero Halogen Compound). , halogen-free low smoke flame retardant) made of any material.
  • the double-layer twisted full-dry cable of Embodiment 1 includes a center reinforcing component, a double-layer twisted cable core, a water blocking tape 5, a reinforcing yarn 6 and an outer sheath layer 7, and the center reinforcing component includes reinforcement.
  • the core 3, the reinforcing core 3 is made of glass fiber reinforced plastic rod GFRP, and the outer surface of the center reinforcing component is spirally wrapped with a water blocking yarn 4 having a linear density of 3000 dtex, and a double-layer twisted cable core is disposed outside the center reinforcing component.
  • the double-layer twisted cable core is composed of two inner and outer loose tubes which are combined by SZ: 6 inner loose tubes 2, outer 12 loose tubes 2, and loose tubes 2 are all dry loose tubes.
  • each loose tube 2 contains 12 fibers 1 and 1 water-blocking yarn 4 with a linear density of 100 dtex, and does not contain grease; the inner 6 loose tubes 2 are wound by SZ stranding.
  • a layer of water blocking strip 5 is longitudinally wrapped to form a first layer of cable core; 12 outer loose tubes 2 are wound on the first layer of cable core by SZ stranding, wrapped with a water blocking strip 5, forming a double-layer twisted cable core; the water blocking strip 5 is a double-sided non-woven water blocking tape with a thickness of 0.15 mm; the entire double-layer twisted cable
  • the surface of the outer water blocking strip 5 is spirally wrapped with a reinforcing yarn 6, the reinforcing yarn 6 is an aramid fiber yarn, and the reinforcing yarn 6 is provided with a tearing cord 8 having a linear density of 3000 dtex, and the reinforcing yarn 6 is disposed outside.
  • the entire cable is a fully dry structure.
  • Embodiment 2 1+7+13 structure
  • the double-layer twisted full-dry optical cable in Embodiment 2 includes a center reinforcing component, a double-layer twisted cable core, a water blocking tape 5, a reinforcing yarn 6 and an outer sheath layer 7, and the center reinforcing component includes reinforcement.
  • the core 3, the reinforcing core 3 is made of aramid fiber reinforced plastic rod KFRP, and the outer surface of the center reinforcing component is spirally wrapped with two water blocking yarns 4 having a linear density of 4000 dtex, and a double-layer twisted cable is arranged outside the center reinforcing component.
  • each loose tube 2 contains 12 fibers 1 and 1 water-resistant yarn 4 with a linear density of 1670 dtex, without grease; 7 loose tubes 2 in the inner layer are SZ stranded
  • the method is wrapped around the center reinforcing component, and longitudinally wrapped with a water blocking strip 5 to form a first layer of cable core; the outer 13 loose tubes 2 are wound on the first layer of cable core by SZ stranding, wrapping a layer Water blocking strip 5, forming a double-layer twisted cable core; water blocking strip 5 is 0.2 mm thick
  • the double-layer twisted full-dry optical cable of Embodiment 3 includes a center reinforcing component, a double-layer twisted cable core, a water blocking tape 5, a reinforcing yarn 6 and an outer sheath layer 7, and the center reinforcing component includes reinforcement.
  • the core 3 and the plastic cushion 9, the reinforcing core 3 is made of phosphating steel wire, and the outer surface of the reinforcing core 3 is covered with a plastic cushion 9 of polyethylene material.
  • the outer surface of the plastic cushion 9 of the central reinforcing component is spirally wrapped with three water blocking yarns 4 having a linear density of 5000 dtex, and a double-layer twisted cable core is disposed outside the center reinforcing component, and the double-layer twisted cable core is composed of two layers inside and outside.
  • the loose tube is sintered by SZ: 9 loose tubes 2 in the inner layer, 15 loose tubes 2 in the outer layer, loose tubes 2 All dry-type loose tube, made of modified polypropylene, each loose tube 2 contains 12 fibers 1 and 1 water-resistant yarn 4 with a linear density of 2000 dtex, no grease; 9 inner layers
  • the loose tube 2 is wound around the center reinforcing component by SZ stranding, and is longitudinally wrapped with a water blocking strip 5 to form a first layer of cable core; the outer 15 loose tubes 2 are wound by the SZ stranding method.
  • a layer of water blocking tape 5 is wrapped on the layer core to form a double-layer twisted cable core;
  • the water blocking tape 5 is a double-sided non-woven water blocking tape with a thickness of 0.25 mm;
  • the outer layer of the entire double-layer twisted cable core The surface of the water blocking strip 5 is spirally wrapped with a reinforcing yarn 6, the reinforcing yarn 6 is an aramid fiber yarn, and the reinforcing yarn 6 is provided with two tearing cords 8 having a linear density of 5000 dtex, and the reinforcing yarn 6 is disposed outside the yarn.
  • the outer sheath layer 7 made of density polyethylene HDPE and having a thickness of 1.8 mm, the whole cable is a full dry structure.
  • the double-layer twisted full-dry optical cable of Embodiment 4 includes a center reinforcing component, a double-layer twisted cable core, a water blocking tape 5, a reinforcing yarn 6 and an outer jacket layer 7, and the center reinforcing component includes a reinforcing core 3 and a plastic cushion layer.
  • the reinforcing core 3 is made of galvanized steel wire, and the outer surface of the reinforcing core 3 is covered with a plastic cushion 9 of polyethylene material.
  • the outer surface of the plastic cushion 9 of the central reinforcing component is spirally wrapped with four water blocking yarns 4 having a linear density of 3300 dtex, and a double-layer twisted cable core is disposed outside the center reinforcing component, and the double-layer twisted cable core is composed of two layers inside and outside.
  • the loose tube is sintered by SZ: 9 inner loose tubes 2, 15 outer loose tubes 2, loose tubes 2 are all dry loose tubes, made of modified polypropylene, each loose
  • the casing 2 contains 12 optical fibers 1 and 2 water-blocking yarns 4 having a linear density of 1670 dtex, which are free of grease; the inner 9 loose tubes 2 are wound around the center reinforcing component by SZ stranding, and are longitudinally wrapped.
  • the layer of water blocking strip 5 forms a first layer of cable core; the outer 15 loose tubes 2 are wound on the first layer of cable core by SZ stranding, and a layer of water blocking strip 5 is wrapped to form a double layer twisted cable core
  • the water blocking strip 5 is a double-sided non-woven water blocking strip with a thickness of 0.3 mm; the surface of the water blocking strip 5 of the entire double-layer twisted cable core is spirally wrapped with a reinforcing yarn 6, and the reinforcing yarn 6 is glass.
  • Fiber yarn, 2 on the reinforcing yarn 6 The tearing cord 8 having a linear density of 6000 dtex and the outer sheathing layer 7 made of a halogen-free low-smoke flame retardant LSZH and having a thickness of 2.0 mm are disposed outside the reinforcing yarn 6, and the entire optical cable is a full dry structure.

Abstract

La présente invention porte sur un câble optique du type entièrement sec à brin double couche qui comprend un élément de renforcement central, un cœur de câble à brin double couche, une bande (5) de blocage d'eau, un fil (6) de renforcement et une couche (7) de gaine extérieure. L'élément de renforcement central est enroulé de façon externe avec un fil (4) de blocage d'eau, le cœur de câble à brin double couche est formé par l'intermédiaire de la mise en brin SZ de tubes (2) de manchon libre du type entièrement sec intérieur et extérieur, et comprend 3 structures : une structure de six tubes au niveau de la couche intérieure et de douze tubes au niveau de la couche extérieure, une structure de sept tubes au niveau de la couche intérieure et de treize tubes au niveau de la couche extérieure, et une structure de neuf tubes au niveau de la couche intérieure et de quinze tubes au niveau de la couche extérieure ; chacun des tubes (2) de manchon libre comprend douze fibres (1) optiques et 1 à 2 morceaux de fil (4) de blocage d'eau et ne contient pas d'onguent ; la bande (5) de blocage d'eau est enroulée entre les tubes (2) de manchon libre du type entièrement sec intérieur et extérieur et à l'extérieur du cœur de câble à brin double couche ; la surface de la bande (5) de blocage d'eau à l'extérieur du cœur de câble à brin double couche est enroulée avec le fil (6) de renforcement ; une corde(8) de déchirement est située sur le fil (6) de renforcement ; et la couche (7) de gaine extérieure est située à l'extérieur du fil (6) de renforcement. Tout le câble optique est constitué d'une structure du type entièrement sec.
PCT/CN2014/083761 2013-08-20 2014-08-06 Câble optique du type entièrement sec à brin double couche WO2015024443A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112016002582-2A BR112016002582B1 (pt) 2013-08-20 2014-08-06 Cabos óticos totalmente secos

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310365824.4A CN103399385B (zh) 2013-08-20 2013-08-20 双层绞全干式光缆
CN201310365824.4 2013-08-20

Publications (1)

Publication Number Publication Date
WO2015024443A1 true WO2015024443A1 (fr) 2015-02-26

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PCT/CN2014/083761 WO2015024443A1 (fr) 2013-08-20 2014-08-06 Câble optique du type entièrement sec à brin double couche

Country Status (3)

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CN (1) CN103399385B (fr)
CL (1) CL2016000142A1 (fr)
WO (1) WO2015024443A1 (fr)

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CN107065094A (zh) * 2017-03-15 2017-08-18 烽火通信科技股份有限公司 一种接入网及室内布线光缆
CN107086062A (zh) * 2017-05-22 2017-08-22 安徽埃克森科技集团有限公司 一种高清数字产品用信号电缆
CN110289137A (zh) * 2019-07-30 2019-09-27 成都亨通光通信有限公司 一种5g通信基站用光电复合缆
CN114609736A (zh) * 2022-03-24 2022-06-10 浙江富春江光电科技有限公司 一种新型防鼠咬抗弯折光缆及制备工艺
CN110426803B (zh) * 2019-08-30 2024-04-30 江苏中天科技股份有限公司 全干式微束光缆

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CN103399385B (zh) * 2013-08-20 2015-05-27 烽火通信科技股份有限公司 双层绞全干式光缆
CN103869440A (zh) * 2014-04-08 2014-06-18 江西联创电缆科技有限公司 一种室内外两用可分支的双层绞合式光缆
CN105353484A (zh) * 2015-12-16 2016-02-24 南京华信藤仓光通信有限公司 一种大芯数光缆
CN106772876B (zh) * 2017-03-15 2019-04-16 杭州富通通信技术股份有限公司 多芯光纤束松套管及其制造方法和纱线缠绕装置
CN108152903A (zh) * 2018-01-16 2018-06-12 山东太平洋光纤光缆有限公司 一种接入网用自承半干式微型分支光缆及其制造方法
CN111983761A (zh) * 2020-09-03 2020-11-24 江苏中天科技股份有限公司 全干式光缆及其制备方法
CN113376776A (zh) * 2021-05-11 2021-09-10 浙江东通光网物联科技有限公司 一种5g用超大芯数光缆
CN114415302A (zh) * 2022-01-26 2022-04-29 江苏亨通光电股份有限公司 一种紧凑型光缆
CN115291346A (zh) * 2022-08-26 2022-11-04 江苏亨通光电股份有限公司 一种耐温差三单元防生物啮咬光缆及其制作工艺

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CN107065094A (zh) * 2017-03-15 2017-08-18 烽火通信科技股份有限公司 一种接入网及室内布线光缆
CN107065094B (zh) * 2017-03-15 2019-09-17 烽火通信科技股份有限公司 一种接入网及室内布线光缆
CN107086062A (zh) * 2017-05-22 2017-08-22 安徽埃克森科技集团有限公司 一种高清数字产品用信号电缆
CN110289137A (zh) * 2019-07-30 2019-09-27 成都亨通光通信有限公司 一种5g通信基站用光电复合缆
CN110426803B (zh) * 2019-08-30 2024-04-30 江苏中天科技股份有限公司 全干式微束光缆
CN114609736A (zh) * 2022-03-24 2022-06-10 浙江富春江光电科技有限公司 一种新型防鼠咬抗弯折光缆及制备工艺

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CL2016000142A1 (es) 2016-06-24
CN103399385B (zh) 2015-05-27
CN103399385A (zh) 2013-11-20
BR112016002582A2 (pt) 2017-08-01

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