CN1254168A - 使用钢管的光纤复合地线 - Google Patents

使用钢管的光纤复合地线 Download PDF

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Publication number
CN1254168A
CN1254168A CN99124837A CN99124837A CN1254168A CN 1254168 A CN1254168 A CN 1254168A CN 99124837 A CN99124837 A CN 99124837A CN 99124837 A CN99124837 A CN 99124837A CN 1254168 A CN1254168 A CN 1254168A
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metal line
opgw
optical fiber
layer metal
steel pipe
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宋必寿
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of CN1254168A publication Critical patent/CN1254168A/zh
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08Several wires or the like stranded in the form of a rope
    • H01B5/10Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/102Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
    • H01B5/104Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of metallic wires, e.g. steel wires
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4415Cables for special applications
    • G02B6/4416Heterogeneous cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08Several wires or the like stranded in the form of a rope
    • H01B5/10Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/108Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around communication or control conductors
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/441Optical cables built up from sub-bundles
    • G02B6/4411Matrix structure

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

Abstract

提供了一种光纤复合地线(OPGW)。该OPGW包括位于OPGW中心的中心金属线、设置在中心金属线周围的钢管、至少一个插入所述钢管中并包含多个以共面排列方式设置的光纤的光纤带、填入所述钢管中的填充材料、至少一层包围所述中心金属线的内层金属线、以及至少一层包围所述钢管和内层金属线的外层金属线。

Description

使用钢管的光纤复合地线
该申请以1998年11月18日在韩国工业产权局提出的流水号为98-49501的申请为基础要求优先权,在先申请的名称为“Optical FiberComposite Ground Wire Using Steel Tube”,将该在先申请的内容包括在本说明书中以供参考。
本发明一般涉及用于光信号传输的光缆,具体地说,涉及使用钢管的光纤复合地线(OPGW),所述复合地线同时起通信线和地线的作用。
电缆分为地下线和架空线。架空线通常设置在乡村而不设置在城市,用于电传输电。由于电缆可能遭遇雷电,在电缆上方安装电线作为避雷针。该电线称为地线。电缆尤其是传输电的电缆需要通信线,用于遥测或遥控。
地线和通信线分开安装,但是最好把它们一体设置。
然而,广泛使用的导体象铜或者铝不适合作通信线,因为附近的电力线产生感生电压或电流,从而导致通信故障。通信故障率的增加与电力线的电压和电流强度成正比,而与通信线和电力线之间的距离成反比。尤其是,数十万伏电压下强电流电力传输线导致附近通信线严重失败。然而,必须给电力传输线提供通信线。为了解决所述问题,开发出OPGW。
图1A是使用钢管的传统OPGW的截面图,而图1B是传统钢管的详细截面图。参考图1A和1B,传统OPGW包括涂敷丙烯的光纤11,光纤11的外径大约为250μm,胶质12涂敷在光纤11的圆周上,用于保护光纤11防水,钢管13,用于把至少一个带有胶质12的光纤11插入其中,中心金属线14,内层金属线15包围中心金属线14,内层金属线15是镀铝钢丝或铝丝,以及外层金属线16,包围内层金属线15,为镀铝钢丝或铝丝。光纤11分别插入钢管13中,由于在制造过程中施加在它们之上的拉力不同,因此光纤长度可能不同,导致光传输特性变坏。
因此,本发明的目的是提供一种OPGW,其中插入钢管的光纤的长度相同。
为了达到上述目的,提供了一种OPGW。该OPGW包括位于OPGW中心的金属线,设置在中心金属线周围的钢管,至少一个光纤带,该光纤带插入所述钢管中并包含多个按共面排列方式设置的光纤,填入钢管中的填充材料,至少一层包围所述中心金属线的内层金属线,以及至少一层包围所述钢管和内层金属线的外层金属线。
通过下面结合附图的详细描述,本发明的上述和其他目的、特征和优点将变得更清楚,其中:
图1A是具有钢管的传统OPGW的截面图;
图1B是传统钢管的截面图;
图2A是根据本发明的具有钢管的OPGW的截面图;以及
图2B是图2A所示的钢管的截面图。
下面将结合附图描述本发明的最佳实施例。在下面的描述中,公知的功能或结构不再详细描述,因为这种不必要的细节将影响对本发明的理解。
图2A是根据本发明的具有钢管的OPGW的截面图,而图2B是图2A所示钢管的截面图。参考图2A和2B,OPGW包括至少一个光纤带21、胶质22、用于把光纤带21插入其中的钢管、中心金属线24、内层金属线25以及外层金属线26。
光纤带21通过如下方式形成:共面排列设置4至8条涂敷丙烯的光纤,在光纤的外表面上均匀涂敷树脂,并用UV(紫外)光固化有涂层的光纤。
UV-固化树脂的作用是保持光纤共面排列,并防止光纤受潮和外部震动。光纤带21中的光纤涂层的颜色不同以便区别。填入管23中的胶质22防止潮气进入钢管23中,并使得光纤带21易于插入钢管23中。胶质23由树脂材料制成。
钢管23包含至少一个光纤带21和胶质22,并由抗氧化和耐腐蚀的金属材料形成。钢管23通常由0.15至0.25mm厚的不锈钢形成,而且直径为2mm。铝膜镀在钢管23的圆周上,以便防止当钢管23接触外层金属线26时可能发生的腐蚀。把至少一个具有4至8条涂敷丙烯的光纤的光纤带21插入钢管23中,每个光纤的直径大约为250μm,而且可以通过堆积多个光纤带21增加光纤的数目。胶质22填入钢管23与光纤带21中,防止光纤带21与钢管23之间摩擦。在制造过程中焊接钢管23去掉销孔。光纤具有0.1至0.3%的光纤富裕长度,防止钢管23伸长或缩短导致它们的特性变坏。
中心金属线24是镀铝钢丝,作为内层金属线25的中心金属线。钢管23富裕长度为60mm或更长,并设置在中心金属线24周围,以便OPGW伸长或缩短可以不影响光纤。
内层金属线25中的每一根是至少一根镀铝钢丝或铝丝,而且需要时可以涂敷防腐油。
外层金属线26中的每一根是至少一根镀铝钢丝或铝丝,并围绕所述钢管23和内层金属线25。外层金属线26防止光纤受外部震动,并为OPGW提供电/机械特性。内层金属线25和外层金属线26在相反方向上绞接,防止当安装OPGW时它们转动,而且前者的富裕长度比后者的短。
根据如上所述的本发明,光纤带用作插入OPGW钢管中的光传输介质。因此,钢管中的光纤的长度相同,光纤的数目容易增加,而且便于钢管中光纤的区分。
虽然已经参考某一最佳实施例示出和描述了本发明,但是本领域的技术人员应该理解可以在形式和细节上进行各种变化,而不脱离所附权利要求限定的本发明的实质和范围。

Claims (8)

1.一种光纤复合地线(OPGW),具有通信线、地线以及电力线一体化的功能,包括:
位于OPGW中心的中心金属线;
设置在中心金属线周围的钢管;
至少一个光纤带,插入所述钢管中,并具有共面排列设置的多个光纤;
填充到所述钢管中的填充材料;
至少一层包围所述中心金属线的内层金属线;以及
至少一层包围所述钢管和内层金属线的外层金属线。
2.如权利要求1所述的OPGW,其中所述光纤带通过如下方式形成:共面排列设置两条或多条涂敷丙烯的光纤,在光纤的外表面上均匀涂敷树脂,并用UV光固化有涂层的光纤。
3.如权利要求1所述的OPGW,其中把光纤富裕长度为0.1至0.3%的光纤带插入所述钢管中。
4.如权利要求1所述的OPGW,其中所述钢管上镀有铝膜,以便防止当钢管接触外层金属线时发生腐蚀。
5.如权利要求1所述的OPGW,其中所述填充材料是树脂材料胶质。
6.如权利要求1所述的OPGW,其中中心金属线和外层金属线中的每一根是镀铝钢丝和铝丝之一。
7.如权利要求1所述的OPGW,其中内层金属线和外层金属线在相反方向上绞接,防止当安装OPGW时内层金属线和外层金属线转动。
8.如权利要求1所述的OPGW,其中所述外层金属线的富裕长度比内层金属线的长。
CN99124837A 1998-11-18 1999-11-18 使用钢管的光纤复合地线 Pending CN1254168A (zh)

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KR49501/1998 1998-11-18
KR1019980049501A KR100322123B1 (ko) 1998-11-18 1998-11-18 스틸튜브를이용한광섬유복합가공지선

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