JPH09274817A - Optical fiber composite overhead earth-wire - Google Patents

Optical fiber composite overhead earth-wire

Info

Publication number
JPH09274817A
JPH09274817A JP8082269A JP8226996A JPH09274817A JP H09274817 A JPH09274817 A JP H09274817A JP 8082269 A JP8082269 A JP 8082269A JP 8226996 A JP8226996 A JP 8226996A JP H09274817 A JPH09274817 A JP H09274817A
Authority
JP
Japan
Prior art keywords
optical fiber
aluminum
wire
zinc
fiber composite
Prior art date
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.)
Pending
Application number
JP8082269A
Other languages
Japanese (ja)
Inventor
Kiyoshi Sanbonsugi
潔 三本杉
Kiyoshi Shimojima
清志 下嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP8082269A priority Critical patent/JPH09274817A/en
Publication of JPH09274817A publication Critical patent/JPH09274817A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/4422Heterogeneous cables of the overhead type
    • G02B6/4423Electro-corrosion preventing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a corrosion resistant optical fiber composite overhead earth-wire in which corrosion between the aluminum pipe of an OP unit and the aluminum-covered steel wire of the over-head earth-wire can be suppressed without changing the data of the optical fiber composite overhead earth-wire. SOLUTION: An optical fiber 1, a spacer 2, and an aluminum pipe 3 constitute an OP unit 4 contained in an overhead earth-wire on the outer surface of the aluminum pipe 3 of which a zinc or zinc alloy layer 8 is formed. It is desirable that the zinc or zinc alloy layer 8 is formed by plating or thermal spraying. The zinc or zinc alloy layer 8 may be formed on the outer surface of an aluminum-covered steel wire 5 in addition to the aluminum pipe 3. It is desirable that the layer 8 is provided at least on the outermost layer when the aluminum- covered steel wire 5 is concentrically stranded.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、光ファイバ複合架
空地線の技術分野に関し、特に耐食性を向上させたこの
種の光ファイバ複合架空地線の提供に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of an optical fiber composite overhead ground wire, and more particularly to the provision of an optical fiber composite overhead ground wire having improved corrosion resistance.

【0002】[0002]

【従来の技術】図3は従来の光ファイバ複合架空地線の
構造例を示したもので、光ファイバ1;収納用のスペー
サ2;保護用のアルミパイプ3でOPユニット4が構成
されており、このOPユニットにおけるアルミパイプ3
の外側にアルミ覆鋼線5が撚り合わせられることで光フ
ァイバ複合架空地線が構成されてなるものである。6は
鋼線、7はアルミ被である。
2. Description of the Related Art FIG. 3 shows a structural example of a conventional optical fiber composite overhead ground wire. An optical fiber 1; a spacer 2 for storage; and an aluminum pipe 3 for protection constitute an OP unit 4. , Aluminum pipe 3 in this OP unit
The optical fiber composite overhead ground wire is configured by twisting the aluminum-covered steel wire 5 on the outside of the. 6 is a steel wire and 7 is an aluminum cover.

【0003】[0003]

【発明が解決しようとする課題】光ファイバ複合架空地
線は、引留クランプあるいは懸垂クランプにより鉄塔に
取り付けられるが、引留クランプの場合にはジャンパー
線の固定金具によりさらに係止される。この場合、架空
地線としてのアルミ覆鋼線が少ない図3のような1層構
造では、光ファイバ複合架空地線の架線中の撚り戻りや
曲げ加工等により、アルミ覆鋼線5の素線間に隙間がで
き、この隙間を通して降雨時に水滴がOPユニット4の
アルミパイプ3の外表面に浸入する場合がある。
An optical fiber composite overhead ground wire is attached to a steel tower by an anchor clamp or a suspension clamp, but in the case of an anchor clamp, it is further locked by a fixing fitting of a jumper wire. In this case, in the one-layer structure as shown in FIG. 3 in which the number of aluminum-covered steel wires as the overhead ground wire is small, the strands of the aluminum-covered steel wire 5 are twisted due to untwisting or bending in the overhead wire of the optical fiber composite overhead ground wire. There may be a gap between them, and water droplets may penetrate into the outer surface of the aluminum pipe 3 of the OP unit 4 through the gap during rainfall.

【0004】大気中の場合、隙間に雨水がたまると乾燥
するのが遅いため、隙間内が長い間濡れた状態に置か
れ、その部分で孔食を発生させこれが成長することにな
るのである。この侵食の過程でアルミ覆鋼線5のアルミ
被7が薄い場合には、内部の鋼線6(鋼心)が露出し、
これがOPユニット4のアルミパイプ3との間で異種金
属接触を形成し、電気化列においてイオン化傾向の大き
いアルミの方が侵食され、ついにはアルミパイプ3に穴
が開くという最悪の事態も考えられ、注意を要するもの
である。この対策としては、なるべく隙間を作らないよ
うな構造とする(光ファイバ複合架空地線のクランプ部
にアーマーロッドを巻く)こと及び、適当なシール材で
隙間を埋めることが上げられ、後者の場合、OPユニッ
ト4とアルミ覆鋼線5との間に油またはグリースを塗布
していた。
In the atmosphere, when rainwater accumulates in the gap, it dries slowly. Therefore, the inside of the gap is left in a wet state for a long time, and pitting corrosion occurs at that portion, which grows. When the aluminum cover 7 of the aluminum-covered steel wire 5 is thin during this erosion process, the internal steel wire 6 (steel core) is exposed,
This forms a dissimilar metal contact with the aluminum pipe 3 of the OP unit 4, and aluminum, which has a large ionization tendency in the electrification train, is eroded, and finally a hole may be opened in the aluminum pipe 3 in the worst case. , Be careful. As a countermeasure for this, it is possible to use a structure that does not create a gap as much as possible (wind an armor rod around the clamp part of the optical fiber composite overhead ground wire) and fill the gap with an appropriate sealing material. In the latter case, Oil or grease was applied between the OP unit 4 and the aluminum-covered steel wire 5.

【0005】しかしながら、前述の対策では新たな解決
課題すなわち、隙間の発生部位が、アーマーロッド保護
部以外に発生する危険性や、長い間の使用経過により
油、グリースが劣化または雨水に流されてしまうことが
想定され、この場合、隙間にシール材を補填しなければ
ならないのである。
However, in the above-mentioned measures, there is a new problem to be solved, that is, there is a risk that a portion where a gap is generated occurs other than the armor rod protection portion, and oil or grease is deteriorated or washed away by rainwater due to a long use. It is assumed that this will happen, and in this case the sealing material must be filled in the gap.

【0006】なお、アルミパイプの腐食の原因は、アル
ミ覆鋼線のアルミ被が薄いためであり、このアルミ被を
層厚を厚くすることも考えられるが、このアルミ被を厚
くすると、光ファイバ複合架空地線を構成する素線の寸
法を変えることになり、外径の顕著な増大を招き、容量
に見合わない;引留部の負担増等の新たな問題を引き起
こし、実用的であるとはいえなかった。
The cause of the corrosion of the aluminum pipe is that the aluminum covering of the aluminum-covered steel wire is thin, and it is conceivable to increase the layer thickness of the aluminum covering. The dimensions of the wires that make up the composite overhead ground wire are changed, which causes a significant increase in the outer diameter and does not match the capacity; it causes new problems such as an increase in the burden on the towing section and is practical. I couldn't say.

【0007】そこで、本発明の解決すべき課題(目的)
は、光ファイバ複合架空地線の諸元を変えることなく、
OPユニットのアルミパイプと架空地線のアルミ覆鋼線
との間での侵食を抑制し得る、耐食性の光ファイバ複合
架空地線を提供することにある。
Therefore, the problems to be solved by the present invention (objects)
Without changing the specifications of the optical fiber composite overhead ground wire,
An object of the present invention is to provide a corrosion resistant optical fiber composite overhead ground wire that can suppress erosion between the aluminum pipe of the OP unit and the aluminum covered steel wire of the overhead ground wire.

【0008】[0008]

【課題を解決するための手段】本発明により提供する第
一の手段としての光ファイバ複合架空地線は、架空地線
に内蔵され光ファイバ;スペーサ;アルミパイプで構成
されるOPユニットにおけるアルミパイプの外表面に、
亜鉛または亜鉛合金の層を形成してなり、以て、OPユ
ニットとアルミ覆鋼線とを、アルミと亜鉛またはその合
金とで接触させあうことになり、腐食を促進せずむしろ
腐食を抑制する効果を生じさせてなるものである。
An optical fiber composite overhead ground wire as a first means provided by the present invention is an aluminum pipe in an OP unit which is built in the overhead ground wire and is composed of an optical fiber; a spacer; and an aluminum pipe. On the outer surface of
A layer of zinc or a zinc alloy is formed, so that the OP unit and the aluminum-covered steel wire are brought into contact with aluminum and zinc or its alloy, and the corrosion is not promoted but rather suppressed. It is the one that produces the effect.

【0009】また、本発明により提供する第二の手段と
しての光ファイバ複合架空地線は、架空地線に内蔵され
光ファイバ;スペーサ;アルミパイプで構成されるOP
ユニットにおけるアルミパイプの外表面及び、架空地線
におけるアルミ覆鋼線の外表面に、亜鉛または亜鉛合金
の層を形成してなり、第一の手段よりもさらに腐食抑制
効果を顕著としてなるものである。
The optical fiber composite overhead ground wire as the second means provided by the present invention is an OP which is built in the overhead ground wire and is composed of an optical fiber; a spacer; and an aluminum pipe.
A layer of zinc or zinc alloy is formed on the outer surface of the aluminum pipe in the unit and the outer surface of the aluminum-covered steel wire in the overhead ground wire, which makes the corrosion inhibition effect more remarkable than the first means. is there.

【0010】前記第一;第二両手段における亜鉛または
亜鉛合金層は、メッキまたは溶射により形成されてなる
と良い。
The zinc or zinc alloy layer in both the first and second means is preferably formed by plating or thermal spraying.

【0011】前記第二の手段におけるアルミ覆鋼線への
亜鉛または亜鉛合金層は、複数の層に同心よりされたア
ルミ覆鋼線の少なくとも最外層素線となるアルミ覆鋼線
に形成してなると良い。この場合、全素線でのアルミ覆
鋼線に当該層を形成することを含むことはいうまでもな
い。
The zinc or zinc alloy layer on the aluminum-covered steel wire in the second means is formed on the aluminum-covered steel wire which is at least the outermost layer element wire of the aluminum-covered steel wire concentric with a plurality of layers. It would be nice. In this case, it goes without saying that the layer is formed on the aluminum-covered steel wire of all the wires.

【0012】[0012]

【発明の実施の形態】図1は、本発明の第一の手段を具
現化した実施例にして、架空地線を構成するアルミ覆鋼
線5内にあるOPユニット4におけるアルミパイプ3の
外表面に亜鉛または亜鉛合金の層8を形成してなるもの
である。この亜鉛または亜鉛合金の層8は、メッキまた
は溶射により形成すると良い。その他の部分で、図3と
同一部分は、同図3と同一の符号を用いているので、そ
れらに関する図3の説明も併せ参照されたい。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment embodying the first means of the present invention and shows the outside of an aluminum pipe 3 in an OP unit 4 in an aluminum covered steel wire 5 which constitutes an overhead ground wire. It is formed by forming a layer 8 of zinc or a zinc alloy on the surface. The zinc or zinc alloy layer 8 is preferably formed by plating or thermal spraying. In other parts, the same parts as those in FIG. 3 are denoted by the same reference numerals as those in FIG. 3, and therefore, the description of FIG.

【0013】この図1の実施例によれば、OPユニット
4とアルミ覆鋼線5とを、アルミと亜鉛またはその合金
とで接触させあうことになり、これは、アルミと鋼との
異種金属接触による腐食の問題をクリヤーにでき、むし
ろ腐食を抑制する効果が生ずる。
According to the embodiment of FIG. 1, the OP unit 4 and the aluminum-covered steel wire 5 are brought into contact with each other by aluminum and zinc or an alloy thereof, which is a dissimilar metal of aluminum and steel. The problem of corrosion due to contact can be cleared, and the effect of suppressing corrosion is produced.

【0014】図2は、本発明の第二の手段を具現化した
実施例にして、OPユニット4におけるアルミパイプの
外表面に亜鉛または亜鉛合金の層8を且つまた、アルミ
覆鋼線5のアルミ被7の表面に亜鉛または亜鉛合金の層
8′を形成してなるものである。本実施例では、アルミ
覆鋼線5による撚り層は1層であるため、全部に当該層
8′を形成する。図3及び図1と同一部分には、それら
図3,1と同一の符号を用いているので、それらに関す
る図3,1の説明も併せ参照されたい。
FIG. 2 shows an embodiment embodying the second means of the present invention, in which the zinc or zinc alloy layer 8 is formed on the outer surface of the aluminum pipe in the OP unit 4 and also the aluminum covered steel wire 5 is formed. A layer 8 ′ of zinc or zinc alloy is formed on the surface of the aluminum cover 7. In this embodiment, since the twisted layer of the aluminum-covered steel wire 5 is one layer, the layer 8'is formed on the entire layer. Since the same parts as those in FIGS. 3 and 1 are denoted by the same reference numerals as those in FIGS. 3 and 1, refer also to the description of FIGS.

【0015】尚、アルミ覆鋼線が同心よりにて複数層と
された場合、少なくとも最外層素線となるアルミ覆鋼線
に亜鉛または亜鉛合金の層を施すと良いものである。全
素線について当該層を施しても良い。何れを選択するか
は、環境条件や架空地線の架線条件等に鑑みて決定する
と良い。
When the aluminum-covered steel wire is concentrically formed into a plurality of layers, it is preferable to apply a layer of zinc or a zinc alloy to at least the aluminum-covered steel wire to be the outermost layer element wire. The layer may be applied to all strands. Which one should be selected may be determined in consideration of environmental conditions, overhead wire conditions of the overhead ground wire, and the like.

【0016】[0016]

【発明の効果】以上説明したような本発明によれば、光
ファイバ複合架空地線の諸元を変えることなく、OPユ
ニットのアルミパイプと架空地線のアルミ覆鋼線との間
での侵食を抑制し得る、耐食性の光ファイバ複合架空地
線を提供するという所期の課題(目的)を達成すること
ができる。
According to the present invention as described above, the erosion between the aluminum pipe of the OP unit and the aluminum-covered steel wire of the overhead ground wire can be performed without changing the specifications of the optical fiber composite overhead ground wire. It is possible to achieve the intended problem (objective) of providing a corrosion-resistant optical fiber composite overhead ground wire that can suppress the above.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例にして、光ファイバ複合架空地
線の横断面図。
FIG. 1 is a cross-sectional view of an optical fiber composite overhead ground wire according to an embodiment of the present invention.

【図2】本発明の他の実施例にして、光ファイバ複合架
空地線の横断面図。
FIG. 2 is a cross-sectional view of an optical fiber composite overhead ground wire according to another embodiment of the present invention.

【図3】従来例にして、光ファイバ複合架空地線の横断
面図。
FIG. 3 is a cross-sectional view of an optical fiber composite overhead ground wire as a conventional example.

【符号の説明】[Explanation of symbols]

1 光ファイバ 2 スペーサ 3 アルミパイプ 4 OPユニット 5 アルミ覆鋼線 6 鋼線 7 アルミ被 8 亜鉛または亜鉛合金の層 8′ 亜鉛または亜鉛合金の層 1 Optical Fiber 2 Spacer 3 Aluminum Pipe 4 OP Unit 5 Aluminum Covered Steel Wire 6 Steel Wire 7 Aluminum Cover 8 Zinc or Zinc Alloy Layer 8 ′ Zinc or Zinc Alloy Layer

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】架空地線に内蔵され光ファイバ;スペー
サ;アルミパイプで構成されるOPユニットにおけるア
ルミパイプの外表面に、亜鉛または亜鉛合金の層を形成
してなる、光ファイバ複合架空地線。
1. An optical fiber composite overhead ground wire formed by forming a layer of zinc or a zinc alloy on the outer surface of an aluminum pipe in an OP unit composed of an optical fiber; a spacer; an aluminum pipe built in the overhead ground wire. .
【請求項2】前記の亜鉛または亜鉛合金層は、メッキま
たは溶射により形成されてなる、請求項1記載の光ファ
イバ複合架空地線。
2. The optical fiber composite overhead ground wire according to claim 1, wherein the zinc or zinc alloy layer is formed by plating or thermal spraying.
【請求項3】架空地線に内蔵され光ファイバ;スペー
サ;アルミパイプで構成されるOPユニットにおけるア
ルミパイプの外表面及び、架空地線におけるアルミ覆鋼
線の外表面に、亜鉛または亜鉛合金の層を形成してな
る、光ファイバ複合架空地線。
3. An optical fiber incorporated in an overhead ground wire; a spacer; an outer surface of an aluminum pipe in an OP unit composed of an aluminum pipe and an outer surface of an aluminum-covered steel wire in the overhead ground wire are made of zinc or a zinc alloy. Optical fiber composite aerial ground wire formed by forming layers.
【請求項4】前記の亜鉛または亜鉛合金の層は、メッキ
または溶射により形成されてなる、請求項3記載の光フ
ァイバ複合架空地線。
4. The optical fiber composite overhead ground wire according to claim 3, wherein the zinc or zinc alloy layer is formed by plating or thermal spraying.
【請求項5】前記の亜鉛または亜鉛合金の層は、架空地
線の少なくとも最外層素線となるアルミ覆鋼線に形成し
てなる、請求項3または請求項4記載の光ファイバ複合
架空地線。
5. The optical fiber composite aerial ground according to claim 3 or 4, wherein the zinc or zinc alloy layer is formed on an aluminum-covered steel wire serving as at least the outermost layer element wire of the aerial ground wire. line.
JP8082269A 1996-04-04 1996-04-04 Optical fiber composite overhead earth-wire Pending JPH09274817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8082269A JPH09274817A (en) 1996-04-04 1996-04-04 Optical fiber composite overhead earth-wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8082269A JPH09274817A (en) 1996-04-04 1996-04-04 Optical fiber composite overhead earth-wire

Publications (1)

Publication Number Publication Date
JPH09274817A true JPH09274817A (en) 1997-10-21

Family

ID=13769774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8082269A Pending JPH09274817A (en) 1996-04-04 1996-04-04 Optical fiber composite overhead earth-wire

Country Status (1)

Country Link
JP (1) JPH09274817A (en)

Similar Documents

Publication Publication Date Title
JP4550218B2 (en) Optical fiber composite ground wire
JP4495123B2 (en) Optical fiber composite ground wire
JPH09274817A (en) Optical fiber composite overhead earth-wire
JP6239702B1 (en) Overhead electric wire and method for manufacturing the same
US2001319A (en) Cable
CN105755956A (en) Novel stay cable for cable-stayed bridge
CN105679429A (en) Zinc-wire-filled corrosion-resisting armour structure for submarine cable
CN205564331U (en) Zinc filaments fills corrosion -resistant outer cover structure for submarine cable
JP2756165B2 (en) Optical fiber composite overhead ground wire
CN205557334U (en) Novel suspension cable is used to cable -stay bridge
JPS59171407A (en) Method of accelerating snowfall resistance of aerial ground wire
JP2004327254A (en) Highly corrosion resistant aluminum cable steel reinforced
CN218729957U (en) Low-voltage multi-core photoelectric composite submarine cable
JPH0831234A (en) Increasing capacity overhead transmission line
CN2641669Y (en) Improved underwater optical cable
CN209591616U (en) A kind of resisting salt fog corrosion aerial insulated cable
JPS61227304A (en) Snow repelling type aerial wire
JPH04133212A (en) Aerial bare wire
CN206340356U (en) Steel core filling epoxy resin takes out a strand type expanded diameter conductor
US295207A (en) stone
JPH0546168Y2 (en)
JP2000268635A (en) Snow accretion preventing type overhead electric wire and wire line thereof
JPH08111122A (en) Corrosion resistant and capacity increased overhead power cable
JP2564297Y2 (en) Overhead ground wire with built-in optical fiber
JPH04133211A (en) Aerial bare wire

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20030107