JPH049001B2 - - Google Patents
Info
- Publication number
- JPH049001B2 JPH049001B2 JP26533186A JP26533186A JPH049001B2 JP H049001 B2 JPH049001 B2 JP H049001B2 JP 26533186 A JP26533186 A JP 26533186A JP 26533186 A JP26533186 A JP 26533186A JP H049001 B2 JPH049001 B2 JP H049001B2
- Authority
- JP
- Japan
- Prior art keywords
- ground wire
- overhead ground
- optical fiber
- fiber cable
- opgw
- 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 claims description 20
- 238000004804 winding Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Electric Cable Installation (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は巻付型OPGWの形成方法の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an improvement in a method for forming a wrapped OPGW.
近年送電線ネツトワークを利用した通信回路網
の形成が考えられ、架空地線に光フアイバーケー
ブルを組合わせ、架空地線と通信線の両機能をも
つOPGWの開発が進められている。
In recent years, the creation of communication networks using power transmission line networks has been considered, and the development of OPGW, which combines optical fiber cables with overhead ground wires and has the functions of both overhead ground wires and communication lines, is underway.
この光フアイバーケーブルと架空地線とを組合
わせたOPGWの構造は種々検討されているが、
その１つに架空地線に光フアイバーケーブルを巻
きつけたものがあり、これは電線の中心部に空洞
を作り、その空洞内に光フアイバーケーブルを収
容した内蔵型OPGWに対して巻付型OPGWと呼
ばれる。 Various OPGW structures that combine optical fiber cables and overhead ground wires have been studied, but
One of these is an optical fiber cable wrapped around an overhead ground wire.This is a built-in OPGW that creates a cavity in the center of the wire and stores the optical fiber cable in the cavity. It is called.
この巻付型OPGWはすでに建設された架空地
線を利用してOPGWとすることが出来るので安
価に出来ることで注目されているものである。 This wrap-around type OPGW is attracting attention because it can be made at low cost because it can be made into an OPGW by using an already constructed overhead ground wire.
しかしながらこの様な構造のOPGWは着氷雪
や強風などにより架空地線に大きな荷重がかかつ
て架空地線が伸張した時に、まきつけられた光フ
アイバーケーブルに大きな引張り応力が加わり、
光フアイバーケーブルが断線するおそれがあると
いう問題があつた。 However, in an OPGW with this type of structure, when a large load is applied to the overhead ground wire due to ice accumulation or strong winds, and the overhead ground wire stretches, a large tensile stress is applied to the optical fiber cable wrapped around it.
There was a problem that the optical fiber cable could break.
本発明の巻付型OPGWの形成方法は予め架設
された架空地線の外周上に光フアイバーケーブル
を螺旋巻きする巻付型OPGWの架設に際して該
架空地線に懸架する巻付機重量を該架空地線にか
かると予測される最大荷重と同等かそれ以上の重
量に調整して光フアイバーケーブルを該架空地線
外周上に螺旋巻きするものである。
The method for forming a winding type OPGW of the present invention is to reduce the weight of the winding machine suspended on the overhead ground wire by spirally winding the optical fiber cable on the outer periphery of the overhead ground wire that has been installed in advance. The optical fiber cable is spirally wound around the outer periphery of the overhead ground wire with the weight adjusted to be equal to or greater than the maximum load expected to be applied to the ground wire.
巻付型OPGWの光フアイバーケーブルの巻付
けを上記方法で行なうと該巻付型OPGWが強風
や氷雪による荷重を受けて伸びても光フアイバー
ケーブルには引張り応力が作用せず光フアイバー
ケーブルが断線することがない。
If the optical fiber cable of a wrap-type OPGW is wrapped using the above method, even if the wrap-type OPGW stretches under the load of strong winds or ice and snow, no tensile stress will be applied to the optical fiber cable and the optical fiber cable will break. There's nothing to do.
次に図を用いて本発明の実施例を説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
鉄塔鉄１，１′間に架設された架空地線２に光
フアイバードラムを載せた巻付機３を懸架し、巻
付け機３を線路方向に移動させて光フアイバーケ
ーブルを架空地線外周に螺旋巻きする点は従来と
同じであるが巻付機の重量を架空地線にかかると
予測される最大荷重と同等或はそれ以上の重量に
調整してある。 A winding machine 3 carrying an optical fiber drum is suspended on the overhead ground wire 2 installed between the steel towers 1 and 1', and the winding machine 3 is moved in the direction of the track to wrap the optical fiber cable around the outer circumference of the overhead ground wire. The point of spiral winding is the same as the conventional one, but the weight of the winding machine is adjusted to be equal to or greater than the maximum load expected to be applied to the overhead ground wire.
その結果巻付機３を線路方向に移動させると架
空地線２は図の様に弛度が増加し、この状態で光
フアイバーケーブルが架空地線の外周に巻付けら
れることになる。 As a result, when the winding machine 3 is moved in the track direction, the slackness of the overhead ground wire 2 increases as shown in the figure, and in this state the optical fiber cable is wound around the outer periphery of the overhead ground wire.
この様にして形成された巻付型OPGWは巻付
機３を取外すと弛度が元にもどり、光フアイバー
ケーブルはたるんだ状態で架空地線外周に巻付け
られた状態となる。このため架空地線が氷雪の付
着などで伸びても光フアイバーケーブルには引張
り応力が作用せず光フアイバーケーブルの損傷を
確実に防止することができる。 When the winding type OPGW formed in this manner is removed, the slackness returns to its original state, and the optical fiber cable becomes sagging and wound around the outer periphery of the overhead ground wire. Therefore, even if the overhead ground wire stretches due to adhesion of ice or snow, no tensile stress is applied to the optical fiber cable, and damage to the optical fiber cable can be reliably prevented.
尚この巻付機に必要な重量を付加するには錘り
を巻付機に取付ける等すればよい。 In order to add the necessary weight to the winding machine, a weight may be attached to the winding machine.
以上述べた如く本発明の巻付型OPGWの形成
方法によれば風雪等により架空地線にかかる荷重
により光フアイバーケーブルが切断されることが
ない巻付型OPGWを得ることが出来るという優
れた効果がある。
As described above, the method for forming a wrapped type OPGW of the present invention has the excellent effect of making it possible to obtain a wrapped type OPGW in which the optical fiber cable will not be cut due to the load applied to the overhead ground wire due to wind, snow, etc. There is.
図は本発明の巻付型OPGWの形式方法を示す
説明図である。
１，１′……鉄塔、２……架空地線、３……巻
付機。
The figure is an explanatory diagram showing the formatting method of the winding type OPGW of the present invention. 1, 1'... Steel tower, 2... Overhead ground wire, 3... Winding machine.
Claims (1)
イバーケーブルを螺旋巻きする巻付型OPGWの
形成に際して、該架空地線に懸架する巻付機重量
を該架空地線にかかると予測される最大荷重と同
等或はそれ以上の重量に調整して該架空地線外周
上に光フアイバーケーブルを螺旋巻きすることを
特徴とする巻付型OPGWの形成方法。1. When forming a winding type OPGW in which optical fiber cable is spirally wound around the outer circumference of an overhead ground wire that has been installed in advance, it is predicted that the weight of the winding machine suspended on the overhead ground wire will be applied to the overhead ground wire. A method for forming a wrapped OPGW, which comprises spirally winding an optical fiber cable on the outer periphery of the overhead ground wire while adjusting the weight to be equal to or greater than the maximum load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61265331A JPS63121414A (en) | 1986-11-07 | 1986-11-07 | Method of forming lashing type opgw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61265331A JPS63121414A (en) | 1986-11-07 | 1986-11-07 | Method of forming lashing type opgw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63121414A JPS63121414A (en) | 1988-05-25 |
| JPH049001B2 true JPH049001B2 (en) | 1992-02-18 |
Family
ID=17415703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61265331A Granted JPS63121414A (en) | 1986-11-07 | 1986-11-07 | Method of forming lashing type opgw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63121414A (en) |
-
1986
- 1986-11-07 JP JP61265331A patent/JPS63121414A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63121414A (en) | 1988-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |