JP2571680B2 - Optical fiber composite overhead ground wire extension method - Google Patents
Optical fiber composite overhead ground wire extension methodInfo
- Publication number
- JP2571680B2 JP2571680B2 JP2226584A JP2226584A JP2571680B2 JP 2571680 B2 JP2571680 B2 JP 2571680B2 JP 2226584 A JP2226584 A JP 2226584A JP 2226584 A JP2226584 A JP 2226584A JP 2571680 B2 JP2571680 B2 JP 2571680B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber composite
- overhead ground
- ground wire
- composite overhead
- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 title claims description 51
- 239000002131 composite material Substances 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000001012 protector Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004804 winding Methods 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
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。Description: TECHNICAL FIELD [0001] The present invention relates to a method for extending an optical fiber composite overhead ground wire.
［発明の技術的背景とその問題点］ 近年、架空送電線の延線工法として、送電線の大型化
と労働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
したプレハブ架線工法が用いられている。[Technical background of the invention and its problems] In recent years, as a method of extending overhead power transmission lines, conventional overhead transmission lines have been conventionally used on towers in order to cope with the enlargement of transmission lines and the labor shortage and to rationalize the tightening work. A prefabricated catenary wire method is used in which sag adjustment is performed on the ground.
このプレハブ架線工法においては、予め地上から鉄塔
間の径間長を精密測量し、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算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 wire construction method, the span length between towers is precisely measured from the ground in advance, and based on the measured values, the required wire length taking into account the sag between the towers is calculated and marked at a predetermined position on the overhead transmission line. Is applied.
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ッ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 erection site, each overhead power transmission line is cut according to the markings, and fastening brackets are attached to both ends of the cut overhead power transmission line. Connected in series, and then extended sequentially between the towers.
しかる後、各鉄塔上において、メッセンジャーワイヤ
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 messenger wire is removed from each of the towers, and each of the fasteners is fixed to the tower via verniers and insulators, thereby completing the wire drawing.
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1b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 method, as a method for fixing an overhead power transmission line to a steel tower, for example, as shown in FIG. 1, a holding fixture 1 having a tubular steel core aluminum stranded wire compression holding section 1a and a jumper wire compression holding section 1b is used. In this method, the steel core aluminum stranded wire 2 is fastened to a steel tower.
すなわち第１図に示すように、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をバーニヤ４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.
The end fitting 1 is inserted into the steel core aluminum stranded wire compression end part 1a of the end fitting 1 and compression-connected, and the end fitting 1 is connected to the steel tower 5 through the vernier 4.
After that, the jumper wire 3 is inserted into the jumper wire compression and staying portion 1b and compression-connected.
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、金属パイプ６の上にスチール線７とアルミ線
８とを順次撚合わせ、金属パイプ６の内部に光ファイバ
ケーブル９を挿通して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, a steel wire 7 and an aluminum wire 8 are sequentially twisted on a metal pipe 6 as shown in FIG. 2, and an optical fiber cable 9 is inserted into the metal pipe 6 as shown in FIG. If the present invention can be applied also to the overhead line of the optical fiber composite overhead ground wire 10 configured, it is considered that the same operational advantages as those of the overhead transmission line 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、
内部に光ファイバケーブル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ァイバケーブル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 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 required wire length to wire it between towers, there is no extra length for connecting the optical fiber cable 9. However, it was not possible 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すべくなされたもの
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。[Purpose of the Invention] The present invention has been made to solve the above-mentioned drawbacks, and is an extension of an optical fiber composite overhead ground wire capable of applying the prefabricated overhead wire construction method to the extension of an optical fiber composite overhead ground wire. It aims to provide a construction method.
［発明の概要］ 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ァイバケーブ
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、それぞれ前記各径間
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上において前記光ファイバケーブ
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ッ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。[Summary of the Invention] That is, in the method for extending an optical fiber composite overhead ground wire according to the present invention, an optical fiber composite overhead ground wire formed by providing a hollow portion at the center and inserting an optical fiber cable into the hollow portion is extended between steel towers. Upon wire drawing, the span length between each tower is precisely measured, and the optical fiber composite overhead ground wire to be extended is added at intervals corresponding to the required wire length obtained by adding the sag to each span length. And, with the extra length portion for connecting the optical fiber cable on the steel tower between the respective intervals, the holding fixture is fixed, and the tip of the optical fiber composite overhead ground wire to which the fixing fixture is fixed is pulled. After being connected to a messenger wire and continuously extending between the towers, each of the towers is retained on the tower by the above-mentioned holding bracket, leaving the 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る。[Embodiments of the Invention] Hereinafter, details of the present invention will be described with reference to the drawings.
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
長がそれぞれ精密測量され、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
おいて延線開始地点の鉄塔側から順に、各径間長に計算
で求めた弛度分を加えた必要電線長A1、A2、…と塔上に
おいて光ファイバケーブルを接続するために設ける余長
B1、B2、…とが順次A1、B1、A2、B2、…と交互に配置さ
れるように後述する引留金具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 method is applied to the extension of the optical fiber composite overhead ground wire 10, first, the span length of the steel tower to be extended is reduced. As shown in FIGS. 3 and 4, when the optical fiber composite overhead ground wire 10 is manufactured, the slack lengths calculated by the respective span lengths are sequentially calculated at the factory from the steel tower side at the starting point of the extension. The extra wire length A 1 , A 2 , ... plus the extra length to connect the optical fiber cable on the tower
B 1, B 2, ... and are sequentially A 1, B 1, A 2 , B 2, marking the ... and located e.g. ink attaching the anchor member 14 to be described later so as to be arranged alternately and the like subjected.
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10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 the drum 11 and transported to the erection site. At 13, a stay fitting 14 is attached to the optical fiber composite overhead ground wire 10 at the above-described position.
この引留金具14としては、例えば第５図に示すよう
に、端部の両側にボルト孔15を有する係止部16が設けら
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, as shown in FIG. 5, a retaining portion 16 having a bolt hole 15 is provided on each side of the end portion, and a concave groove 17 is formed along one divided surface and the concave groove is formed on the other side. What consists of a pair of metal semi-cylindrical bodies 19 in which the convex shape 18 engaged with 17 is engraved 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
部を圧縮することにより光ファイバ複合架空地線10に固
着される。After this fitting 14 is fitted to a predetermined position of the optical fiber composite ground wire 10 to be extended, it is fixed to the optical fiber composite overhead ground wire 10 by compressing the trunk portion of the fitting 14. .
次に、このように引留金具14が取付けられ、この上に
プロテクター（図示を省略）が取付けられた光ファイバ
複合架空地線10を、第４図に示すように、鉄塔20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
端に牽引用メッセンジャーワイヤー22を接続し、ウイン
チ等の牽引装置23により牽引し連続的に鉄塔20上に延線
する。Next, the optical fiber composite overhead ground wire 10 on which the retaining fitting 14 is attached and on which the protector (not shown) is attached as shown in FIG. After that, the towed messenger wire 22 is connected to the end of the optical fiber composite overhead ground wire 10, towed by a towing device 23 such as a winch, and continuously extended on the steel tower 20.
しかる後、各鉄塔20上において、第６図に示すよう
に、引留金具14をバーニヤ24を介して鉄塔20に引留め
る。Thereafter, on each of the towers 20, as shown in FIG. 6, the retaining fittings 14 are retained on the towers 20 via the verniers 24.
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を通過させることができ
る。In addition, by providing the protector on the holding member 14 attached to the optical fiber composite overhead ground wire 10 as described above, the holding member 14 does not interfere with the drawing operation during the drawing, and the continuous Can be passed through the gold wheel 21.
次に、各鉄塔間に延線された光ファイバ複合架空地線
10の光ファイバケーブル接続のための余長B1、B2、…を
それぞれ数回卷回してループを形成させた後、この余長
B1、B2、…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
ファイバケーブル９を露出させ、この光ファイバケーブ
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
なうようにすればよい。Next, an optical fiber composite overhead ground wire extended between each tower
After winding 10 times each of the extra lengths B 1 , B 2 ,... For connecting the optical fiber cables several times to form a loop,
At the intermediate position of the loop of B 1 , B 2 ,..., The sheath portion such as the stranded conductor of the optical fiber composite overhead ground wire 10 is cut and removed by a required length, and the optical fiber cable 9 is exposed. Is connected to a connector 25 for amplifying or splitting the transmission signal of the above. The connection of the optical fiber cable does not necessarily need to be performed for each steel tower, but may be performed only at a necessary place such as signal amplification or branching.
［発明の効果］ 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] As described 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 method to the optical fiber composite overhead ground wire, and to extend the work. The properties are 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、工事の際に光ファ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。Further, since the overhead ground wire can be extended without cutting, there is no danger of flooding in the optical fiber cable at the time of construction, and safety at a high level is reduced because work at high places is reduced.
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 embodiment, when a compression type fastener is used, there is an advantage that the reliability is higher than that of the bolt fastening type fastener, and the workability of ground work is improved.
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……光ファイバケーブル 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……金車 22……牽引用メッセンジャーワイヤー 24……バーニヤ 25……接続器FIG. 1 is a diagram for explaining a conventional prefabricated wire line construction method,
FIG. 2 is a cross-sectional view of the optical fiber composite overhead ground wire, FIG.
FIGS. 4 and 6 are views for explaining one embodiment of the present invention, and FIG. 5 is a perspective view of an example of a fastening fitting used in the method of extending an optical fiber composite overhead ground wire of the present invention. FIG. 9 ... Optical fiber cable 10 ... Optical fiber composite overhead ground wire 14 ... Retaining bracket 16 ... Locking section 20 ... Steel tower 21 ... Car wheel 22 ... Towing messenger wire 24 ... Vernier 25 ... Connection vessel
Claims (3)
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
記各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上において前記光ファイ
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ッ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
ることを特徴とする光ファイバ複合架空地線の延線工
法。An optical fiber composite overhead ground wire having a hollow portion provided in the center thereof and an optical fiber cable inserted therein is extended between the towers, and the length of the span between the towers is precisely measured. Connect the optical fiber cable to the optical fiber composite overhead ground wire to be extended at intervals corresponding to the required wire length obtained by adding the sag to the respective span lengths, and between the intervals on a steel tower. With an extra length for
After fixing the anchoring fixture and connecting the tip of the optical fiber composite overhead ground wire to which the anchoring fixture is fixed to the towing messenger wire and continuously extending between the steel towers, the extra length is left on the tower. The optical fiber composite overhead ground wire drawing method, wherein each of the optical fiber composite overhead ground wires is fixed to a steel tower by the above-mentioned holding fixture.
方向に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第１項記載の光ファイバ複合架空地
線の延線工法。2. The optical fiber composite overhead ground wire according to claim 1, wherein the retaining metal fitting is a compression retaining metal fitting provided with a longitudinally divided sleeve having an engaging portion on a dividing surface. Wire drawing method.
めの余長部分に複数のループを形成し、このループの一
部で光ファ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 wherein a plurality of loops are formed on a steel tower at an extra length for connecting optical fibers, and an optical fiber cable is exposed at a part of the loops and connected to a connector. 2. The method for extending an optical fiber composite overhead ground wire according to claim 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 JPS60165604A (en) | 1985-08-28 |
| JP2571680B2 true 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) |
Families Citing this family (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60165604A (en) | 1985-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR940004224B1 (en) | Method of laying optical cable in aerial line | |
| US4569708A (en) | Method for covering cables with sheaths for corrosion protection and/or aesthetics | |
| JP2571680B2 (en) | Optical fiber composite overhead ground wire extension method | |
| KR101819145B1 (en) | Method of inserting and placing tendon in sheath | |
| JP2850207B2 (en) | Hall prefabricated wiring method | |
| JP2504265B2 (en) | Gold wheel passing type detention clamp and protector and terminal type prefabricated jumper | |
| JP2922700B2 (en) | How to install multi-conductor transmission line | |
| JPH041528Y2 (en) | ||
| JP2819387B2 (en) | Electric wire drum for winding a prefabricated electric wire for a complete prefabricated wire line method and a protector for winding the prefabricated electric wire around the electric wire drum | |
| JPH0214098Y2 (en) | ||
| JPH06217431A (en) | Laying method of overhead transmission line | |
| JP2810853B2 (en) | How to install diagonal cable | |
| JPS5847779Y2 (en) | insulator device | |
| KR20010069225A (en) | The method of conductors string on 765kv transmission line | |
| JP2755474B2 (en) | Twisting method of self-supporting cable | |
| RU2064214C1 (en) | Method for installing conductors of overhead power transmission line on pole arms by means of flying vehicle | |
| JPS6349069Y2 (en) | ||
| JPS6031369Y2 (en) | Structure for fixing the starting end of prefabricated wire to the drum | |
| JPS63287311A (en) | Line hardware | |
| RU2058641C1 (en) | Spiral-type supporting clamp | |
| JP2755473B2 (en) | Twisting method of self-supporting cable | |
| JPS5840739Y2 (en) | Prefabricated jumper wire for overhead power transmission lines | |
| JP2784723B2 (en) | Electric wire drum for winding a prefabricated electric wire series for a complete prefabricated wire line method and a protector for winding the electric wire drum of the prefabricated electric wire series | |
| JP2924677B2 (en) | Loop type low tension wire moving method | |
| JPS6038925B2 (en) | How to install split wire |