JPS60165604A - Stringing method of optical fiber composite overhead earth wire - Google Patents
Stringing method of optical fiber composite overhead earth wireInfo
- Publication number
- JPS60165604A JPS60165604A JP59022265A JP2226584A JPS60165604A JP S60165604 A JPS60165604 A JP S60165604A JP 59022265 A JP59022265 A JP 59022265A JP 2226584 A JP2226584 A JP 2226584A JP S60165604 A JPS60165604 A JP S60165604A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- optical fiber
- fiber composite
- composite overhead
- ground wire
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 240000007015 Melilotus indicus Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Electric Cable Installation (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の技術分野]
本発明は、光ファイバ複合架空地線の延線工法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for extending an optical fiber composite overhead ground wire.
[発明の技術的背韻とその問題点]
近年、架空送電線の延線工法として、送電線の大型化と
倣動力不足に対処し緊線作業の合理化を図るため、従来
塔上で行なわれていた弛度調整を地上で行なうようにし
たプレハブ架II法が用いられている。[Technical implications of the invention and its problems] In recent years, as a method of extending overhead power transmission lines, in order to cope with the increase in the size of power transmission lines and the lack of tracing power, and to streamline the wiring work, the method of extending overhead power transmission lines has been changed from the conventional method carried out on towers. The Prefabricated Frame II method is used, in which the sag adjustment is performed on the ground.
このプレハブ架線工法においてをよ、予め地上から鉄塔
間の径間長を精密測置し、この測定値に基づいて鉄塔間
の弛度を考慮した必要電線長を綽出して架空送電線の所
定位置に標示が施される。In this prefabricated overhead line construction method, the span length between the towers is precisely measured in advance from the ground, and based on this measurement, the necessary wire length is calculated taking into account the slack between the towers, and the required wire length is determined to place the overhead power line at the specified location. will be marked.
次いで架設現場において、標示にしたがってそれぞれ架
空送電線を切断し、切断された架空送電線の両端に引留
金具を取付け、最も遠方に延線される架空送電線から順
に鉄塔幅より長いメツセンジャーワイヤーを介して一連
に接続し、順次鉄塔間に延線される。Next, at the construction site, each overhead power transmission line is cut according to the markings, and retaining metal fittings are attached to both ends of the cut overhead power transmission line, and Metsenger wires longer than the tower width are connected in order from the overhead power transmission line that extends farthest away. The cables are connected in series through the pylons, and the wires are sequentially extended between the pylons.
しかる後、各鉄塔上において、メツセンジャーワイヤー
を取外し、各引留金具がバーニヤおよび碍子を介して鉄
塔に固定されて延線が完了する。Thereafter, the metsenger wire is removed from each tower, and each retaining fitting is fixed to the tower via a vernier and an insulator to complete the wire extension.
この工法においては、架空送電線を鉄塔に固定する方法
として、例えば第1図に示すような筒状の鋼心アルミ撚
線圧縮引留部1aとジャンパー線圧縮引留部11)とを
有する引留金具1を使用して、鋼心アルミ撚線2を鉄塔
に引留める方法が採られている。In this construction method, as a method of fixing an overhead power transmission line to a steel tower, for example, a retaining fitting 1 having a cylindrical steel core aluminum stranded wire compression retaining part 1a and a jumper wire compression retaining part 11) as shown in FIG. A method has been adopted in which the steel-core aluminum stranded wire 2 is secured to the steel tower using a steel-core aluminum strand.
すなわち第1図に示J−ように、鋼心アルミ撚線2を、
引留金具1の鋼心アルミ撚線圧縮引留部1aに差込んで
圧縮接続し、この引留金具1をバー二A74を介して鉄
塔5に引留めた後、ジャンパー線圧縮引留部1bにジャ
ンパー線3を差込んで圧縮接続する。That is, as shown in FIG. 1, the steel core aluminum stranded wire 2 is
After inserting and compressing connection into the steel-core aluminum stranded wire compression retaining portion 1a of the retaining fitting 1, and securing the retaining fitting 1 to the steel tower 5 via the bar steel A74, the jumper wire 3 is inserted into the jumper wire compression retaining portion 1b. Insert and connect with compression.
ところで、このようなプレハブ架線工法を第2図に示す
ような、金属バイブロの上にスチール線7とアルミ線8
とを順次撚合わせ、金属バイブロの内部に光フアイバケ
ーブル9を挿通しで構成された光ファイバ複合架空地線
10の架線にも適用することができれば、架空送電線の
場合と同様の作業上の利点が得られるものと考えられる
。By the way, such a prefabricated overhead wire construction method is shown in Figure 2, in which a steel wire 7 and an aluminum wire 8 are placed on top of a metal vibro.
If it can be applied to the overhead wire of the optical fiber composite overhead ground wire 10, which is constructed by sequentially twisting the wires and inserting the optical fiber cable 9 into the inside of the metal vibro, the work will be similar to that of the overhead power transmission line. It is thought that advantages can be obtained.
しかしながら光ファイバ複合架空地線10の延線には、
内部に光フアイバケーブル9があるため、延線前に光フ
ァイバ複合架空地線10を鉄塔間に架線するため必要電
線長に切断した場合には光フアイバケーブル9の接続の
ための余長がなくなり、このための光ファイバ複合架空
地線10の延線には従来のプレハブ架線工法を適用する
ことが不可能であった。However, in the extension of the optical fiber composite overhead ground wire 10,
Since there is an optical fiber cable 9 inside, if the optical fiber composite overhead ground wire 10 is cut to the necessary wire length to connect between the towers before the cable is extended, there will be no extra length for connecting the optical fiber cable 9. However, it has been impossible to apply the conventional prefabricated overhead wire construction method to the extension of the optical fiber composite overhead ground wire 10 for this purpose.
[発明の目的]
本発明はこのような難点を解消ずべくなされたもので、
光ファイバ複合架空地線の延線にプレハ3−
ブ架線工法を適用することが可能な光ファイバ複合架空
地線の延線工法を提供することを目的としている。[Object of the invention] The present invention has been made to solve these difficulties.
The object of the present invention is to provide a method for extending an optical fiber composite overhead ground wire in which a prefabricated three-way overhead wire construction method can be applied to the extension of the optical fiber composite overhead ground wire.
[発明の[髪1
すなわち本発明の光ファイバ複合架空地線の延線工法は
、中心に中空部を設けこの中空部に光フアイバケーブル
を内挿してなる光ファイバ複合架空地線を鉄塔間に延線
するにあたり、各鉄塔間の径間長を精密測量し、延線す
べき光ファイバ複合架空地線に、それぞれ前記缶径・間
長に弛度分を加えた必要電線長に相当する間隔毎に、か
つ前記各間隔間へ鉄塔、トにおいて前記光フアイバケー
ブルを接続するための余長部分を介在させつつ、引留金
具を固着し、この引留金具が固着された光ファイバ複合
架空地線の先端を牽引用メツセンジャーワイヤーに接続
して連続的に各鉄塔間に延線した後、塔上に前記余長を
残して前記引留金具によりそれぞれ鉄塔に引留めること
を特徴としている。[Hair 1 of the Invention] That is, the method for extending an optical fiber composite overhead ground wire of the present invention is to provide an optical fiber composite overhead ground wire between steel towers by providing a hollow part in the center and inserting an optical fiber cable into the hollow part. When extending the line, the span length between each tower is precisely measured, and the distance corresponding to the required wire length, which is the above-mentioned can diameter and span length plus slack, is determined for each optical fiber composite overhead ground wire to be extended. At each of the above-mentioned intervals, a retaining fitting is fixed with an extra length for connecting the optical fiber cable interposed between the steel towers and the above-mentioned intervals, and the optical fiber composite overhead ground wire to which this retaining fitting is fixed is fixed. The wire is characterized in that after connecting the tip to a traction metsenger wire and extending the wire continuously between each steel tower, the wire is tied to the respective steel towers by the retaining metal fittings, leaving the above-mentioned extra length on the tower.
(発明の実施例] 以下、本発明の詳細を図面を参照しつつ説明す4− る。(Embodiments of the invention) The details of the present invention will be explained below with reference to the drawings.4- Ru.
本発明の光ファイバ複合架空地線の延線工法においては
、光ファイバ複合架空地線10の延線にプレハブ架線工
法を適用して延線するため、まず延線すべき鉄塔の径間
長がそれぞれ精密側−され、第3図および第4図に示す
ように、光ファイバ複合架空地線10の製造時に、工場
において延wA開始地点の鉄塔側から順に、各径間長に
計算でめた弛度分を加えた必要電線長A+ 、A2 、
・・・と塔上において光フアイバケーブルを接続するた
めに設ける余長B+182、・・・とが順次A I 、
B I NA 2 、B 2 、・・・と交互に配置さ
れるように侵述する引留金具14を取付ける位置に例え
ばインク等により標示が施される。In the optical fiber composite overhead ground wire extension method of the present invention, since the prefabricated overhead wire construction method is applied to the extension of the optical fiber composite overhead ground wire 10, the span length of the tower to be extended is first determined. As shown in Figures 3 and 4, each span length was determined by calculation in order from the tower side at the starting point of the extension wA at the factory when manufacturing the optical fiber composite overhead ground wire 10. Required wire length including slackness A+, A2,
. . . and the extra length B+182 provided for connecting the optical fiber cable on the tower, . . . are sequentially A I ,
Markings are made, for example, with ink, at the positions where the retaining metal fittings 14 are to be attached so as to be arranged alternately as B I NA 2 , B 2 , . . . .
しかる後、上記のように標示が施された光ファイバ複合
架空地線10が順次ドラム11に巻回されて架設現場に
運搬され、延線車12を通過させて延線しながら地上の
圧縮作業場13において順次光ファイバ複合架空地線1
0の上記標示位置に引留金具14が取付けられる。Thereafter, the optical fiber composite overhead ground wire 10 marked as described above is sequentially wound around a drum 11 and transported to the construction site, where it is passed through a wire-stretching car 12 and transported to a compression work site on the ground while being stretched. 13, sequentially optical fiber composite overhead ground wire 1
The retainer fitting 14 is attached to the above indicated position of 0.
この引留金具14としては、例えば第5図に示すにうに
、端部の両側にボルト孔15を有する係止部16が設番
プられ、一方の分割面に沿って凹溝17と他方にこの凹
溝17と係合する凸状18が刻設された1対の金属製半
円筒体19からなるものが使用される。As shown in FIG. 5, for example, this retaining fitting 14 has a locking part 16 having bolt holes 15 on both sides of the end, a concave groove 17 along one dividing surface and a locking part 16 on the other side. A pair of metal semi-cylindrical bodies 19 having a protrusion 18 that engages with the groove 17 is used.
この引留金具14は、延線すべき光ファイバ複合架空地
線10の所定位置に嵌合させた後に、この引留金具14
の胴部を圧縮J−ることにより光ファイバ複合架空地線
10に固着される。This retaining fitting 14 is fitted into a predetermined position of the optical fiber composite overhead ground wire 10 to be extended.
The fiber optic composite overhead ground wire 10 is fixed by compressing the body of the fiber optic.
次に、このように引留金具14が取付けられ、このにに
プロテクター(図示を省略)が取付けられた光フファイ
バ複合架空地線10を、第4図に示J゛ように、鉄塔2
0上の金車21に懸架した後、この光ファイバ複合架空
地線10の先端に牽引用メ゛ツセンジャーワイヤー22
を接続し、ウィンチ等の牽引装置23により牽引し連続
的に鉄塔20トに延線する。Next, as shown in FIG.
After suspending it on the metal wheel 21 on the top of the optical fiber composite overhead ground wire 10, a mainsenger wire 22 for traction is attached to the tip of the optical fiber composite overhead ground wire 10.
The wire is connected to the wire, and is pulled by a pulling device 23 such as a winch to continuously extend the wire to the steel tower 20.
しかる後、各鉄塔20.トにおいて、第6図に示1°よ
うに、引留金具14をバーニヤ24を介して鉄塔20に
引留める。After that, each steel tower 20. At this point, the retaining fitting 14 is secured to the steel tower 20 via the vernier 24 as shown in FIG.
なお、上記のように光ファイバ複合架空地線10に取付
けられた引留金具14の上にプロテクターを設けること
により、延線中に引留金具14が延線作業の支障になる
ことがなくなり、連続的に金車21を通過さけることが
できる。In addition, by providing a protector on the hold-down fitting 14 attached to the optical fiber composite overhead ground wire 10 as described above, the hold-down fitting 14 will not interfere with the wire-stretching work during wire extension, and the wire can be continuously extended. You can avoid passing the gold wheel 21.
次に、各鉄塔間に延線されlζ光フアイバ複合架空地線
10の光フアイバケーブル接続のための余長81,82
、・・・をそれぞれ数回巻回してループを形成させた後
、この余長B + 、B 2 、・・・のループの中間
位置で光ファイバ複合架空地線10の撚線導体等の外被
部分を所要長さ切断除去し、光フアイバケーブル9を露
出させ、この光フアイバクープル9の伝送信号を増幅さ
せたり、分岐させて信号を取出すための接続器25に接
続する。なお、この光ファイバケーブルの接続は、必ず
しも各鉄塔について行なう必要はなく、信号の増幅、分
岐等の必要な箇所においてのみ行なうように覆ればよい
。Next, extra lengths 81, 82 for optical fiber cable connection of the lζ optical fiber composite overhead ground wire 10 which is extended between each steel tower.
, ... are wound several times each to form a loop, and then the outside of the stranded conductor, etc. of the optical fiber composite overhead ground wire 10 is wound at the intermediate position of the loop with the extra lengths B + , B 2 , ... The covered portion is cut and removed to a required length to expose the optical fiber cable 9, and connected to a connector 25 for amplifying or branching the transmission signal of the optical fiber coupler 9 and extracting the signal. Note that it is not necessary to connect the optical fiber cables to each tower, and it is sufficient to connect the optical fiber cables only at locations where signal amplification, branching, etc. are necessary.
[発明の効果]
7−
以上説明したように本発明の光ファイバ複合架空地線の
延線工法によれば、光ファイバ複合架空地線にプレハブ
架線工法を適用して延線することが可能となり、作業性
が著しく向上する。[Effects of the Invention] 7- As explained above, according to the method for extending an optical fiber composite overhead ground wire of the present invention, it becomes possible to apply the prefabricated overhead wire construction method to the optical fiber composite overhead ground wire to extend the wire. , workability is significantly improved.
また、架空地線を切断することなく延線することができ
るので、工事の際に光フアイバケーブル内に浸水するお
それがなく、しかも高所作業が少なくなるので安全性も
大きい。In addition, since the overhead ground wire can be extended without cutting, there is no risk of water seeping into the optical fiber cable during construction, and there is also less work to be done at heights, resulting in greater safety.
特に実施例に示したように、圧縮タイプの引留金具を用
いた場合には、ボルト締めタイプの引留金具よりも信頼
性が大きく、かつ地上作業の作業性も良好となる利点が
ある。In particular, as shown in the embodiments, when a compression type retaining fitting is used, there is an advantage that the reliability is higher than that of a bolt tightening type retaining fitting, and the workability of ground work is also better.
第1図は従来のプレハブ架線工法を説明するための図、
第2図は光ファイバ複合架空地線の横断面図、第3図、
第4図および第6図は本発明の一実施例を説明するため
の図、第5図は本発明の光ファイバ複合架空地線の延線
工法に使用される引留金具の一例を締す斜視図である。
9・・・・・・・・・・・・光フアイバケーブル8−
10・・・・・・・・・・・・光ファイバ複合架空地線
14・・・・・・・・・・・・引留金具16・・・・・
・・・・・・・係止部
20・・・・・・・・・・・・鉄 塔
21・・・・・・・・・・・・金 tl]22・・・・
・・・・・・・・牽引用メツセンジ17−ワイA7−2
4・・・・・・・・・・・・バーニヤ25・・・・・・
・・・・・・接続器
代理人弁理士 須 山 佐 −
(ばか1名)
第5図
ム^
14 1(JFigure 1 is a diagram to explain the conventional prefabricated overhead wire construction method.
Figure 2 is a cross-sectional view of the optical fiber composite overhead ground wire; Figure 3;
4 and 6 are diagrams for explaining one embodiment of the present invention, and FIG. 5 is a perspective view of tightening an example of the retaining fitting used in the method of extending the optical fiber composite overhead ground wire of the present invention. It is a diagram. 9...... Optical fiber cable 8- 10...... Optical fiber composite overhead ground wire 14... Retainer fitting 16...
......Locking part 20... Steel tower 21... Gold tl]22...
・・・・・・・・・Towing Metsu Senji 17-Y A7-2
4・・・・・・・・・Vernier 25・・・・・・
・・・・・・Connector representative Patent attorney Suyama Sa - (1 idiot) Figure 5 M^ 14 1 (J
Claims (3)
ブルを内挿してなる光ファイバ複合架空地線を鉄塔間に
延線するにあたり、各鉄塔間の径間長を精密測用し、延
線すべき光ファイバ複合架空地線に、それぞれ前記各径
間長に弛度弁を加えた必要電線長に相当する間隔毎に、
かつ前記各間隔間へ鉄塔上において前記光フアイバケー
ブルを接続するための余長部分を介在させつつ、引留金
具を固着し、この引留金具が固着された光ファイバ複合
架空地線の先端を牽引用メツセンジャーワイヤーに接続
して連続的に各a #!1間に延線した後、塔上に前記
余長を残して前記引留金具によりそれぞれ鉄塔に引留め
ることを特徴とする光ファイバ複合架空地線の延線工法
。(1) When extending an optical fiber composite overhead ground wire, which has a hollow part in the center and inserts an optical fiber cable into this hollow part, between towers, the span length between each tower is precisely measured, and the length of the span between each tower is precisely measured. At intervals corresponding to the required wire length, which is the sum of the above-mentioned span lengths and slack valves, the optical fiber composite overhead ground wire to be wired is
and fixing a hold-down fitting while interposing an extra length for connecting the optical fiber cable on the steel tower between each interval, and using the tip of the optical fiber composite overhead ground wire to which the hold-down fitting is fixed for traction. Continuously connect each a #! to the Metsenger wire! 1. A method for extending an optical fiber composite overhead ground wire, characterized in that after the wire is extended for one length of time, the extra length is left on the tower and the wire is tied to the steel tower using the retaining metal fittings.
2つ割りされたスリーブを備えた圧縮引留金具である特
許請求の範囲111項記載の光ファイバ複合架空地輪の
延線工法。(2) The method for extending an optical fiber composite aerial ground ring according to claim 111, wherein the retainer is a compression retainer having a longitudinally divided sleeve having an engaging portion on the dividing surface. .
長部分に複数のループを形成し、このループの一部で光
フアイバケーブルを露出させ接続器に接続したことを特
徴とする特許請求の範囲第1項記載の光ファイバ複合架
空地線の延線工法。(3) A patent claim characterized in that a plurality of loops are formed in the extra length for connecting optical fibers on a steel tower, and the optical fiber cable is exposed at a part of the loops and connected to a connector. A method for extending an optical fiber composite overhead ground wire according to item 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226584A JP2571680B2 (en) | 1984-02-09 | 1984-02-09 | Optical fiber composite overhead ground wire extension method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226584A JP2571680B2 (en) | 1984-02-09 | 1984-02-09 | Optical fiber composite overhead ground wire extension method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60165604A true JPS60165604A (en) | 1985-08-28 |
JP2571680B2 JP2571680B2 (en) | 1997-01-16 |
Family
ID=12077935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2226584A Expired - Lifetime JP2571680B2 (en) | 1984-02-09 | 1984-02-09 | Optical fiber composite overhead ground wire extension method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2571680B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021021881A (en) * | 2019-07-30 | 2021-02-18 | 株式会社フジクラ | Cable fitted with optical module |
-
1984
- 1984-02-09 JP JP2226584A patent/JP2571680B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021021881A (en) * | 2019-07-30 | 2021-02-18 | 株式会社フジクラ | Cable fitted with optical module |
Also Published As
Publication number | Publication date |
---|---|
JP2571680B2 (en) | 1997-01-16 |
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