WO2007134525A1 - Câble électro-optique - Google Patents

Câble électro-optique Download PDF

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Publication number
WO2007134525A1
WO2007134525A1 PCT/CN2007/001533 CN2007001533W WO2007134525A1 WO 2007134525 A1 WO2007134525 A1 WO 2007134525A1 CN 2007001533 W CN2007001533 W CN 2007001533W WO 2007134525 A1 WO2007134525 A1 WO 2007134525A1
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WO
WIPO (PCT)
Prior art keywords
optical cable
optical
cable
core
optical fiber
Prior art date
Application number
PCT/CN2007/001533
Other languages
English (en)
French (fr)
Inventor
Baoyi Yuan
Original Assignee
Baoyi Yuan
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
Priority claimed from CN 200610012741 external-priority patent/CN1851512A/zh
Priority claimed from CNB2006100128763A external-priority patent/CN100367419C/zh
Priority claimed from CNU2007201009225U external-priority patent/CN201036086Y/zh
Application filed by Baoyi Yuan filed Critical Baoyi Yuan
Publication of WO2007134525A1 publication Critical patent/WO2007134525A1/zh

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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
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • G02B6/4422—Heterogeneous cables of the overhead type

Definitions

  • the present invention relates to optical and electrical transmission media, and more particularly to optical cables that simultaneously transmit optical signals and transmit electrical energy. Background technique
  • power cables of different voltage levels are used to transmit or distribute electrical energy.
  • the power cable has less interference from the external climatic environment and high reliability of power supply; the larger the capacitance, which is beneficial to improve the power factor of the power system; the insulating layer and the sheath layer, and the outer sheath can withstand Mechanical external force or tensile force, safety, not easy to damage, but only can transmit electrical energy.
  • As an optical fiber transmission medium in order to ensure long-term use under various laying conditions and various environments, it is necessary to manufacture a relatively complicated optical cable. In today's society, it is often necessary to transmit electrical energy and optical signals simultaneously, in the same direction, to meet the needs of power and information transmission and measurement. Therefore, it is necessary to lay power cables and optical cables separately in the distance and indoors, which greatly increases the engineering. Difficulties and construction investment. Summary of the invention
  • the present invention is directed to an optical cable capable of transmitting electrical energy as well as transmitting optical signals in the same direction.
  • the optical cable of the present invention is composed of a cable core and a sheath layer composed of a cable portion for transmitting electrical energy and a cable portion for transmitting optical signals.
  • One of the structural forms is a parallel optical cable, and the metal conductive core of the cable portion is parallel to the optical fiber of the cable portion.
  • the optical fiber of the outdoor long-distance erected optical cable is placed longitudinally inside or outside the reinforcement.
  • the metal conductive core and the outer side of the optical fiber are respectively covered with an insulating protective layer, and the outer sheath layer is integrally connected.
  • Fiber optic reinforcements can be plastic skeletons or wire and metal apologies.
  • the optical cable has a dumbbell shape, a circular shape or an oblate cross section.
  • the wire for indoor optical cable is the metal wire of the outer plastic tube.
  • the optical cable is a single or multiple optical fibers with a plastic tube or a plastic film, and the plastic sheath of the wire and the optical fiber jacket may have fibers therebetween. Filler.
  • the plastic sheath layer may have a color line different from the original color to distinguish it from the ordinary wire.
  • the second structural form is a layered optical cable, which is a metal-coated core that transmits electrical energy and a fiber or fiber bundle that transmits optical signals and a central reinforcing member twisted into a stranded optical cable.
  • the optical fiber or bundle can be vertically positioned. In the central reinforcement, it can also be longitudinally placed between any one of the outer layers or different layers of metal conductive cores.
  • the optical cable of the outdoor erected optical cable is made of one or more optical fibers, or bundles of optical fibers. Its structure directly affects the transmission quality of optical signals and the requirements of the installation, and must meet the optical, mechanical and environmental characteristics of the optical fiber.
  • the existing optical cable generally consists of a core, a sheath and a reinforcing core. Therefore, as a component of the optical cable, it is also necessary to have a high structural design to ensure transmission requirements and quality. However, the structural characteristics of the cable portion can be utilized to complement the two.
  • the cable part of the optical cable of the invention can ensure normal electric transmission, and can provide mechanical support for the optical cable, withstand the external force of the installation and use of the optical cable, overcome the brittleness of the optical fiber and increase the microbend loss, and ensure the stability of the optical fiber. And reliability.
  • the cable and the cable are parallel in longitudinal direction, and the cross-section is 3 ⁇ 4 bell-shaped or oblate.
  • the cable and the cable part can be easily divided into two, and each of them maintains a relatively independent structure, which is convenient for introduction and extraction during installation. Connector. Layer twisting is also easy to use.
  • Fig. 1 is a schematic view showing the structure of an optical cable of the present invention in which a single-core cable and a skeleton cable are combined.
  • FIG. 2 is a schematic structural view of a self-supporting overhead optical cable of the present invention in which a four-core cable and a skeleton cable are combined.
  • Fig. 3 is a schematic view showing the optical cable of the present invention in which a two-core cable and a bundle-tube structure optical cable are combined.
  • FIG. 4 is a schematic view of an optical cable of the present invention in which a three-core cable and a six-core tight-layer stranded optical cable are combined.
  • Figure 5 is a schematic cross-sectional view of an indoor optical cable.
  • Figure 6 is a schematic view of the indoor optical cable jacket.
  • Figure 7 is a schematic diagram of an indoor oblate optical cable.
  • Figure 8 is a schematic diagram of a direct buried optical cable.
  • Figure 9 is a schematic diagram of an embodiment of a layered optical cable.
  • FIG. 10 is a schematic diagram of the second embodiment of the layered optical cable.
  • Example 1 There are various embodiments of the optical cable of the present invention, and only a few of them are shown in the drawings.
  • Example 1
  • This embodiment is an optical cable in which a single core cable and a skeleton type optical cable are combined.
  • the optical cable consists of a cable that transmits electrical energy and a diaphragm that transmits optical signals.
  • the metal conductive core 2 of the cable is parallel to the optical fiber 5 of the optical cable, and the optical fiber 5 is longitudinally disposed outside the reinforcing member 6.
  • the metal conductive core 2 and the optical fiber 5 are respectively covered with an insulating protective layer 1 and connected through the outer sheath layer 3 thereof.
  • the optical cable has a dumbbell shape in cross section.
  • the reinforcement of the optical fiber 5 can be a plastic skeleton 7 or an addition member 6 and a longitudinal belt 4.
  • the plastic skeleton 7 may have various structures such as a center-increased spiral shape, a forward-reverse spiral shape, and a dispersion-enhanced basic unit shape.
  • the plastic skeleton 7 in the figure has a spiral structure, and the material thereof is generally low-density polyethylene.
  • the plastic skeleton 7 has good protection performance for the optical fiber 5, and the lateral pressure strength is good, which is advantageous for construction, especially for pipeline deployment.
  • the coated optical fiber 5 can be directly placed in the inner frame groove of the plastic skeleton 7, eliminating the secondary coating process of the loose tube, which is advantageous for the fiber connection, and the filling grease 8 can be used in the inner frame groove, the cable in Fig. 2
  • the core also includes a neutral core 10.
  • the fiber slot of the plastic frame 7 can be selected in the fiber manufacturing process by the geometry and the appropriate pitch. As shown in Fig. 3, the fiber length is adapted to the fiber stress and thermal expansion performance.
  • the optical fiber 5 in Figure 4 is placed in high intensity plastic light
  • the reinforcing member 6 is a dispersed steel wire, disposed around the sheath layer, has good strength, is particularly resistant to pressure, can prevent the influence of harsh environment and possible rough operation, and can improve the stability and reliability of network transmission. .
  • the optical fiber capacity of the optical cable is flexible, and the number of the four cores is four, fifty or even eight, ninety cores.
  • the sheath layer 3 can be made of polyvinyl chloride, polyethylene or aluminum-polyethylene, or a lead-polyethylene LIP sheath layer and steel wire armor 9 to make the sheath layer 3 have pressure, moisture and temperature characteristics. Good, light weight, chemically resistant and flame retardant.
  • the optical cable of the invention can be laid by pipeline, and can also be directly buried, overhead and laid underwater.
  • the electric wire is a metal conductive core 2 of the outer insulating layer 1
  • the optical cable is a single or a plurality of optical fibers 5, electric wires and optical cables of the high-strength plastic optical fiber bundle tube 11.
  • the sheath layer 3 has one or two color lines 13 different from the original color.
  • This embodiment is a layered optical cable.
  • the layered optical cable is composed of a metal conductive core 2 for transmitting electrical energy and an optical fiber or bundle 5 for transmitting optical signals, and the inner layer is a steel wire reinforcement member 6,
  • the outer layer is a metal conductive core 2, and the optical fiber or bundle 5 of the outer metal tube 11 is placed in any layer or different layers, and is stranded into a layered optical cable, and the optical cable is covered with a sheath layer 3.
  • the layer hinged optical cable is composed of a metal conductive core 2 for transmitting electrical energy and an optical fiber or bundle 5 for transmitting optical signals
  • the inner layer is a steel wire reinforcement 6
  • the outer layer is a metal conductive core 2
  • the outer metal bundle The fiber or bundle 5 of the tube 11 is placed in any one or different layers and twisted into a layered optical cable.
  • Industrial applicability 200 The cable part of the optical cable of the invention can ensure normal electric transmission, and can provide mechanical support for the optical cable, withstand the external force of the installation and use of the optical cable, overcome the brittleness of the optical fiber and increase the microbend loss, and ensure the stability of the optical fiber. Sex and reliability.
  • the cable and the cable are parallel in longitudinal direction, and the cross-section is dumbbell-shaped or oblate.
  • the cable and the cable portion can be easily divided into two parts, and each of them maintains a relatively independent structure, which facilitates introduction, extraction and joints during installation. .
  • the invention is used in the case where the optical cable and the cable need to be erected or laid at the same time, the cable part of the optical cable can ensure normal electric transmission, and can provide mechanical support for the optical cable, and bear the external force of the installation and use of the optical cable to overcome the brittleness of the optical fiber. And the increased microbend loss characteristics ensure the stability and reliability of the fiber.
  • the layered version has the same function and use characteristics.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Communication Cables (AREA)

Description

光电缆
技术领域
本发明涉及光、 电传输介质， 尤其是同时传输光信号和传输电能 的光电缆。 背景技术
在电力系统中， 传输或分配电能要使用不同电压等级的电力电 缆。 电力电缆与架空裸线相比， 具有受外界气候环境干扰小、 供电可 靠性高； 电容较大， 有利于提高电力系统的功率因数； 有绝缘层和护 套层, 及外护层， 能承受机械外力或拉力作用、 安全、 不易受损等优 点， 但仅能传输电能。 而作为光信号传输介质的光纤， 为了保证能在 各种敷设条件下和各种环境中长期使用，必须制成结构相对复杂的光 纜。在现今社会中， 常常需要同时、 同路、 同走向传输电能和光信号, 以满足动力和信息传输及测量的需要，因而需长距离及在室内分别敷 设电力电缆和光缆， 这就大大增加了工程难度和建设投资。 发明内容
本发明就是要提供一种既能传输电能又能同走向传输光信号的 光电缆。
本发明的光电缆由缆芯和护套层构成，缆芯由传输电能的电缆部 分和传输光信号的光缆部分构成。 其结构形式之一为并行式光电缆, 电缆部分的金属导电线芯与光缆部分的光纤平行。户外长距离架设的 光电缆的光纤纵置于增强件内或外。金属导电线芯与光纤外各自包覆 绝缘保护层， 经其外的护套层连为一体。 光纤的增强件可为塑料骨架 或钢丝和金属歉包带。 光电缆横截面呈哑铃形、 圆形或扁圆形。 室内 用光电缆的电线为外套塑料管的金属导线，光缆为外套塑料管或塑料 薄膜的单根或多根光纤， 电线和光纤外套塑料护套层， 其间或有纤维 填充物。 塑料护套层上可有不同于本色的色线， 以区别于普通电线。 其结构形式之二为层绞式光电缆，是由传输电能的金属导电线芯和传 输光信号的光纤或光纤束与中心增强件扭绞成层绞式光电缆，光纤或 光纤束可纵置于中心增强件内，也可纵置于其外任意一层或不同层金 属导电线芯之间。 光纤或光纤束外可有金属或非金属束管， 增强件可 为塑料骨架或钢线或金属纵包带。户外架设的光电缆的光缆以一根或 多根光纤， 或光纤束制成。 它的结构直接影响光信号的传输质量以及 敷设施工要求， 必须符合光纤的光学、 机械即环境特性的要求。 现有 光缆， 一般由缆芯、 护层和加强芯组成。 因此， 作为光电缆的组成部 份同样需要具有较高的结构设计， 以保证传输要求及质量。 但可以利 用电缆部份的结构特性， 使两者相辅相成。
本发明光电缆的电缆部分能确保正常的电传输，又能为光电缆提 供机械支撑， 承受光缆部分安装使用所受的外力， 克服光纤的脆性和 微弯损耗增加的特性， 确保光纤的稳定性和可靠性。 而光电缆中电缆 和光缆纵向平行、横截面成 ¾铃形或扁圆形的结构可使电缆和光缆部 分易于一分为二， 并各自保持相对独立的结构， 便于安装时的引入、 引出和接头。 层绞式同样便于使用。 附图说明
图 1为单芯电缆与骨架式光缆组合而成的本发明的光电缆结构示 意图。
图 2 为四芯电缆与骨架式光缆组合而成的本发明的自承式架空 光电缆结构示意图。
图 3 为二芯电缆与束管式结构光缆组合而成的本发明的光电缆 示意图。
图 4 为三芯电缆与六芯紧套层绞式光缆组合而成的本发明的光 电缆示意图。 图 5为室内光电缆截面示意图。
图 6为室内光电缆外套示意图。
图 7为室内扁圆形光电缆示意图。
图 8为直埋式光电缆示意图。
图 9为层绞式光电缆实施例之一示意图。
图 10为层绞式光电缆实施例之二示意图。
1、 外套绝缘层， 2、 导电线芯， 3、 护套层， 4、 纵包带， 5、 光 纤， 6、 增强件， 7、 塑料骨架， 8、 填充油膏， 9、 钢丝铠装， 10、 中 性线芯， 11、 光纤束管， 12、 松套管， 13、 色线， 14、 填充物 具体实施方式
本发明光电缆有多种实施方式， 附图所示仅为其中几种。 实施例 1
本实施例为单芯电缆与骨架式光缆组合的光电缆。
如图 1-4所示， 本光电缆由传输电能的电缆和传输光信号的光缵 构成。 电缆的金属导电线芯 2与光缆的光纤 5平行， 光纤 5纵置于增 强件 6外， 金属导电线芯 2与光纤 5外各自包覆绝缘保护层 1 , 经其 外护套层 3连为一体， 光电缆横截面呈哑铃形。 光纤 5的增强件可为 塑料骨架 7或增加件 6和纵包带 4。 塑料骨架 7可以是中心增加螺旋 形、 正反螺旋形、 分散增强基本单元形等多种结构， 图中的塑料骨架 7为螺旋形结构， 其材料一般为低密度聚乙烯。 塑料骨架 7对光纤 5 有良好的保护性能， 侧压强度好， 对施工、 尤其是管道布放有利。 一 次涂敷的光纤 5可直接放置于塑料骨架 7的内架槽内，省去松套管二 次被覆过程， 有利于光纤连接， 内架槽内可以使用填充油膏 8, 图 2 中的电缆线芯还包括中性线芯 10。 塑料骨架 7的光纤槽在光纤制造 过程中， 可选择几何形状和适当的节距， 如图 3所示， 使光纤余长适 合光纤应力和热膨胀性能的需要。图 4中的光纤 5置于高强度塑料光 纤束管 11中， 增强件 6为分散钢丝， 配置在护套层周围， 强度好， 特别耐压， 能防止恶劣环境和可能出现的野蛮作业的影响， 能提高网 络传输的稳定性和可靠性。 而这种束管式结构， 由于是直接将一次涂 敷的固化光纤放置于束管中， 所以光缆的光纤容量灵活， 少则四芯， 多则四、 五十甚至八、 九十芯。 护套层 3可釆用聚氯乙烯、 聚乙烯或 铝-聚乙烯， 或铅-聚乙烯组成的 LIP护套层加钢丝铠装 9等， 使护 套层 3具有耐压、 防潮、 温度特性好、 重量轻、 耐化学浸蚀和阻燃等 特点。 本发明光电缆可管道敷设， 亦可直埋、 架空及水下敷设。
优选的， 如图 5、 图 7、 图 8所示， 电线为外套绝缘层 1的金属 导电线芯 2，光缆为外套高强度塑料光纤束管 11的单根或多根光纤 5, 电线和光缆之间有纤维填充物 14， 外套塑料护套层 3。 光电缆中的电 线有 1一 4根， 光纤 5为一根或多对。
优选的， 如图 6所示， 护套层 3上有区别于本色的 1条或 2条色 线 13。 - 实施例 2
本实施例为层绞式的光电缆。
如图 9、 图 10所示， 在本实施例中， 层紋式光电缆由传输电能 的金属导电线芯 2和传输光信号的光纤或光纤束 5构成， 内层是钢线 增强件 6， 外层是金属导电线芯 2, 外套金属束管 11的光纤或光纤束 5置于任意一层或不同层， 绞制成层绞式光电缆， 光电缆外覆护套层 3。
优选的，层铰式光电缆由传输电能的金属导电线芯 2和传输光信 号的光纤或光纤束 5构成， 内层是钢线增强件 6, 外层是金属导电线 芯 2, 外套金属束管 11的光纤或光纤束 5置于任意一层或不同层， 绞制成层紋式光电缆。 工业实用性 200 本发明光电缆的电缆部分能确保正常的电传输，又能为光电缆提 供机械支撑， 承受光缆部分安装使用所受的外力， 克服光纤的脆性和 微弯损耗增加的特性， 确保光纤的稳定性和可靠性。 而光电缆中电缆 和光缆纵向平行、横截面成哑铃形或扁圆形的结构可使电缆和光缆部 分易于一分为二， 并各自保持相对独立的结构， 便于安装时的引入、 引出和接头。 本发明用于需要同时架设或铺设光缆和电缆的场合， 光 电缆的电缆部分能确保正常的电传输， 又能为光电缆提供机械支撑， 承受光缆部分安装使用所受的外力，克服光纤的脆性和微弯损耗增加 的特性， 确保光纤的稳定性和可靠性。 层绞式具有同样的功能和使用 特点。

Claims

权 利 要 求 书
1、 一种光电缆， 由缆芯和缆芯外的护套层 (3)构成， 其特征在于: 所述的缆芯至少包括金属导电线芯 (2)和光纤 (5)。
2、 根据权利要求 1所述的光电缆， 其特征在于： 金属导电线芯 (2)与光纤 (5)平行， 横截面呈哑铃形、 圆形或扁圆形。
3、 根据杈利要求 1或 2所述的光电缆， 其特征在于： 所述的光 纤 (5)附有增强件（6 ), 金属导电线芯 (2)外包裹有绝缘层 （1 )。
4、 根据权利要求 3所述的光电缆， 其特征在于： 所迷的增强件 可以是塑料骨.架 (7)或金属纵包带 (4)或钢丝。
5、 根据权利要求 1所述的光电缆， 其特征在于： 金属导电线芯 (2)、 光纤 (5)与增强件 ( 6 )扭绞为一体。
6、 根据杈利要求 5所述的光电缆， 其特征在于： 光纤 (5)可纵置 于增强件（6 ) 内， 或多层的金属导电线芯 (2)之间。
7、 根据权利要求 5所述的光电缆， 其特征在于： 光纤 (5)为多束 组成， 外部包有束管 (11), 增强件（6 ) 可为塑料骨架 (7)、 或钢线、 或金属纵包带 (4)。
8、 根据杈利要求 1或 5所述的光电缆， 其特征在于： 护套层 (3) 的外表面印有一条或多条不同于本色的标志线 (13)。
PCT/CN2007/001533 2006-05-23 2007-05-10 Câble électro-optique WO2007134525A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN 200610012741 CN1851512A (zh) 2006-05-23 2006-05-23 光电缆
CN200610012741.7 2006-05-23
CNB2006100128763A CN100367419C (zh) 2006-06-27 2006-06-27 一种光电缆
CN200610012876.3 2006-06-27
CNU2007201009225U CN201036086Y (zh) 2007-04-03 2007-04-03 层绞式光电缆
CN200720100922.5 2007-04-03

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WO2007134525A1 true WO2007134525A1 (fr) 2007-11-29

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CN109274434A (zh) * 2018-11-07 2019-01-25 桂林电子科技大学 一种基于单光纤集成光缆的光能量和光信号收发处理系统

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CN2524251Y (zh) * 2002-01-07 2002-12-04 烽火通信科技股份有限公司 带有标识线的光缆
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CN109274434A (zh) * 2018-11-07 2019-01-25 桂林电子科技大学 一种基于单光纤集成光缆的光能量和光信号收发处理系统
CN109274434B (zh) * 2018-11-07 2022-04-15 桂林电子科技大学 一种基于单光纤集成光缆的光能量和光信号收发处理系统

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