JPS63181607A - Installation of composite cable - Google Patents
Installation of composite cableInfo
- Publication number
- JPS63181607A JPS63181607A JP62011386A JP1138687A JPS63181607A JP S63181607 A JPS63181607 A JP S63181607A JP 62011386 A JP62011386 A JP 62011386A JP 1138687 A JP1138687 A JP 1138687A JP S63181607 A JPS63181607 A JP S63181607A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- optical fiber
- electric wire
- fiber core
- composite cable
- 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
Links
- 239000002131 composite material Substances 0.000 title claims description 22
- 238000009434 installation Methods 0.000 title 1
- 239000013307 optical fiber Substances 0.000 claims description 46
- 230000003287 optical effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000011176 pooling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、例えば架空送電線、架空地線等として用いら
れる複合ケーブルの布設方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of laying a composite cable used, for example, as an overhead power transmission line, an overhead ground wire, or the like.
[従来技術]
電線に光ファイバ心線を内蔵させた複合ケーブルは、電
線の端部から導出させた光ファイバ心線に光コネクタを
設けた状態で延線され、鉄塔に架設される。このような
複合ケーブルでは、延線時の張力で電線が延びてしまい
、光ファイバ心線の長さが不足し、光ファイバ心線に張
力がかかる状態になるので、従来は電線の端部の外に光
ファイバ心線の余長部を設け、電線の延びに対処するよ
うにしていた。[Prior Art] A composite cable in which an optical fiber core wire is built into an electric wire is extended with an optical connector provided on the optical fiber core wire led out from the end of the electric wire, and then installed on a steel tower. In such composite cables, the wires are stretched due to the tension during wire stretching, resulting in insufficient length of the optical fiber core wire and tension being applied to the optical fiber core wire. Extra length of the optical fiber core wire was provided outside to accommodate the extension of the electric wire.
[発明が解決しようとする問題点]
しかしながら、電線の端部の外に光フィバ心線の余長部
を設けると、延線作業時に電線が延びる毎に該電線の端
部から光ファイバ心線が内部に引き込まれるので、電線
端のエツジ部で光ファイバ心線が損傷され易い問題点が
あった。[Problems to be Solved by the Invention] However, if the extra length of the optical fiber core is provided outside the end of the wire, the optical fiber core will be removed from the end of the wire each time the wire is extended during wire extension work. Since the wire is drawn into the inside, there is a problem in that the optical fiber core wire is easily damaged at the edge portion of the wire end.
本発明の目的は、延線時に光ファイバ心線に損傷を与え
ないで布設を行える複合ケーブルの端末部を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an end portion of a composite cable that can be installed without damaging the optical fiber core during cable extension.
[問題点を解決するための手段]
上記の目的を達成するための本発明の手段を、実施例に
対応する第1図乃至第6図(A)〜(D)を参照して説
明すると、本発明は電!i!2に光ファイバ心線3が内
蔵されてなる複合ケーブル1の布設方法において、前記
電線2の端部から導出された前記光ファイバ心線3の端
部に光コネクタ4を取付は且つ前記電線2の端部から導
出された前記光ファイバ心線3を固定手段5で前記電線
2の端部に固定しておき、かかる状態で前記複合ケーブ
ル1を延線し、延線後に前記電線2の端部を所要長さ切
除して前記電線2内の前記光ファイバ心線3の張力を解
放することを特徴とする。[Means for Solving the Problems] The means of the present invention for achieving the above object will be explained with reference to FIGS. 1 to 6 (A) to (D) corresponding to the embodiments. This invention is electric! i! 2, in which an optical connector 4 is attached to an end of the optical fiber core 3 led out from the end of the electric wire 2; The optical fiber core 3 led out from the end of the electric wire 2 is fixed to the end of the electric wire 2 by a fixing means 5, and in this state, the composite cable 1 is extended, and after stretching, the end of the electric wire 2 is fixed. The present invention is characterized in that the tension of the optical fiber core 3 within the electric wire 2 is released by cutting off the section to a required length.
[作用]
このように電線2の端部に光ファイバ心線3を固定手段
5で固定しておくと、延線時に電線2が延びても光ファ
イバ心線3は電線2内に引き込まれなくなる。従って、
電線2の端部の外に光ファイバ心線3の余長部を設けな
くてもよくなる。延線時に光アイバ心線3が電線端部で
損傷されるのを防止できる。[Function] By fixing the optical fiber core 3 to the end of the electric wire 2 with the fixing means 5 in this way, the optical fiber core 3 will not be drawn into the electric wire 2 even if the electric wire 2 is extended during wire extension. . Therefore,
There is no need to provide an extra length of the optical fiber core 3 outside the end of the electric wire 2. It is possible to prevent the optical fiber core wire 3 from being damaged at the end of the wire during wire extension.
[実施例1] 以下本発明の実施例を図面を参照して詳細に説明する。[Example 1] Embodiments of the present invention will be described in detail below with reference to the drawings.
第1図乃至第3図は本発明の第1実施例を示したもので
ある。本実施例の場合、第1図に示すように、複合ケー
ブル1は金属素線を撚り合せてなる電線2の中心に保護
管(図示せず)等を介して繊維強化プラスチツク被覆の
光ファイバ心線3が内蔵された構造になっている。電線
2の端部からは、光ファイバ心線3が必要最少限の長さ
で導出され、該光ファイバ心線3の先端には光コネクタ
4が取付けられている。電線2の端部では、光ファイバ
心線3の導出部分が接着剤等の固定手段5で該電線2の
端部に固定されている。このような電線2の端部、光フ
ァイバ心線3の露出部分及び光コネクタ4を包囲して筒
状の延線クランプ6が嵌合され、電線2に圧着部6A等
で固定されている。なお、6Bは延線クランプ6の先端
に設けられていたプーリングアイ部である。1 to 3 show a first embodiment of the present invention. In the case of this embodiment, as shown in FIG. 1, a composite cable 1 has an optical fiber core covered with fiber reinforced plastic inserted through a protective tube (not shown) or the like at the center of an electric wire 2 made of twisted metal wires. It has a structure with wire 3 built-in. An optical fiber coated wire 3 is led out from the end of the electric wire 2 with the minimum necessary length, and an optical connector 4 is attached to the tip of the optical fiber coated wire 3. At the end of the electric wire 2, a lead-out portion of the optical fiber core 3 is fixed to the end of the electric wire 2 with a fixing means 5 such as an adhesive. A cylindrical wire extension clamp 6 is fitted around the end of the electric wire 2, the exposed portion of the optical fiber core 3, and the optical connector 4, and is fixed to the electric wire 2 with a crimp portion 6A or the like. Note that 6B is a pulling eye portion provided at the tip of the wire extension clamp 6.
このような構造の端末部7を備えた複合ケーブル1は、
プーリングアイ部6Bにプーリングワイヤーを接続して
鉄塔間に延線する。The composite cable 1 equipped with the terminal portion 7 having such a structure is
A pooling wire is connected to the pooling eye part 6B and extended between the steel towers.
このとき、延線張力で電線2が延びるが、光ファイバ3
は固定手段5で電線2に固定されているので電線2内に
引き込まれない。しかしながら、電線2が延びた分だけ
電線2内の光ファイバ心線3には張力がかかった状態に
なり、好ましくない。At this time, the electric wire 2 is extended due to the wire tension, but the optical fiber 3
Since it is fixed to the electric wire 2 by the fixing means 5, it cannot be drawn into the electric wire 2. However, as the electric wire 2 is extended, the optical fiber core 3 within the electric wire 2 is subjected to tension, which is not preferable.
そこで、延線後に端末部7より手前の電線2の部分を図
示しない引留手段でクランプして鉄塔に引留めておいて
、延線クランプ6を除去し、第2図に示すように電線2
を延線時に延びた分だけ剥離させる。このようにすると
、光ファイバ心線3はフリーになるので、作用していた
張力が零になるまで電線2内に引き込まれ、張力から解
放される。剥離させた不要の電線2の部分は切除し、第
3図に示す状態にする。かかる状態で、図示しないが次
の区間の複合ケーブルと電線2はジャンパ一線で接続し
、光ファイバ心線3は光コネクタ4で相互に接続する。Therefore, after the wire has been extended, the portion of the wire 2 in front of the terminal portion 7 is clamped to the tower using a restraining means (not shown), the wire extension clamp 6 is removed, and the wire 2 is held in place as shown in FIG.
When the wire is stretched, it is peeled off by the length of the wire. In this way, the optical fiber core wire 3 becomes free, so that it is drawn into the electric wire 2 until the tension that was acting on it becomes zero, and is released from the tension. The stripped and unnecessary portion of the electric wire 2 is cut off to form the state shown in FIG. 3. In this state, although not shown, the next section of the composite cable and the electric wire 2 are connected with a single jumper, and the optical fiber cores 3 are connected with each other by an optical connector 4.
[実施例2コ
第4図乃至第6図(A)〜(D)は本発明の第2実施例
を示したものである。第4図に示すように、本実施例の
場合、複合ケーブル1は第1実施例と同様に金属素線を
撚り合せてなる電線2の中心に保護管(図示せず)等を
介して繊維強化プラスチツク被覆の光ファイバ心線3が
内蔵された構造になっている。電線2の端部からは、光
ファイバ心線3が必要最少限の長さで導出され、該光フ
ァイバ心線3の先端には光コネクタ4が取付けられてい
る。電線2の端部には光コネクタ4及び光ファイバ心線
3の露出部分を収容するコネクタハウジング8が接着剤
又は圧着等により固定されている。コネクタハウジング
8内の光ファイバ心線3は該コネクタハウジング8及び
電線2に接着剤等の固定手段5で固定されている。本実
施例では、接着剤で電線2とコネクタハウジング8との
固定を行っている。光コネクタ4はコネクタハウジング
8の先端部に位買決め収納されている。光コネクタ4の
端面及びコネクタハウジング8の端面には、相手光]ネ
クタ及びコネクタハウジングとの心合せ用ピン9,10
が突設されている。また、コネクタハウジング8の先端
外周には、相手コネクタとの連結用ナツト11が回転自
在に且つ抜()止めされて設けられている。[Embodiment 2] Figures 4 to 6 (A) to (D) show a second embodiment of the present invention. As shown in FIG. 4, in the case of this embodiment, the composite cable 1 is constructed by connecting a fiber to the center of an electric wire 2 made of twisted metal wires together through a protective tube (not shown) or the like, as in the first embodiment. It has a structure in which a reinforced plastic-coated optical fiber core 3 is built-in. An optical fiber coated wire 3 is led out from the end of the electric wire 2 with the minimum necessary length, and an optical connector 4 is attached to the tip of the optical fiber coated wire 3. A connector housing 8 for accommodating the optical connector 4 and the exposed portion of the optical fiber core 3 is fixed to the end of the electric wire 2 by adhesive, pressure bonding, or the like. The optical fiber core 3 in the connector housing 8 is fixed to the connector housing 8 and the electric wire 2 with fixing means 5 such as adhesive. In this embodiment, the electric wire 2 and the connector housing 8 are fixed with adhesive. The optical connector 4 is positioned and housed at the tip of the connector housing 8. On the end face of the optical connector 4 and the end face of the connector housing 8, pins 9 and 10 are provided for alignment with the mating optical connector and the connector housing.
is installed protrudingly. Further, on the outer periphery of the tip of the connector housing 8, a nut 11 for coupling with a mating connector is provided so as to be rotatable and prevented from being pulled out.
このような構造の端末部7を設けた複合ケーブル1の布
設方法を第6図(八)〜(D)を参照して説明する。第
6図(A)に示す如き複合ケーブル1は、コネクタハウ
ジング8又は電線2の端部に図示しないがプーリングワ
イヤーを連結して鉄塔間に延線する。A method of laying the composite cable 1 provided with the terminal portion 7 having such a structure will be explained with reference to FIGS. 6(8) to 6(D). A composite cable 1 as shown in FIG. 6(A) is extended between steel towers by connecting a pooling wire (not shown) to the end of the connector housing 8 or the electric wire 2.
このとき、延線張力で電線2が延びるが、光ファイバ3
は前述したように固定手段5で電線2に固定されている
ので電線2内に引き込まれない。At this time, the electric wire 2 is extended due to the wire tension, but the optical fiber 3
As described above, since it is fixed to the electric wire 2 by the fixing means 5, it cannot be drawn into the electric wire 2.
しかしながら、電線2が延びた分だけ電線2内の光ファ
イバ心線3には張力がかかった状態になり、好ましくな
い。However, as the electric wire 2 is extended, the optical fiber core 3 within the electric wire 2 is subjected to tension, which is not preferable.
そこで、延線後に端末部7より少し手前の電線2の部分
を図示しない引留手段でクランプして鉄塔に引留めてお
いて、コネクタハウジング8寄りの箇所で電線3を第6
図CB)に示すように切断し、その切断した電線2を延
線時に延びた分だ(プ第6図(C)に示すように剥離さ
せる。このようにすると、光ファイバ心線3はフリーに
なるので、作用していた張力が零になるまで電線2内に
引き込まれる。剥離させた不要の電線2の部分は切除し
、第6図(D)に示す状態にする。かかる状態で、図示
しないが圧着金具の如ぎ連結手段で切断された電線2を
相互に連結し、次の区間の複合ケーブルと電線2はジャ
ンパー線で接続し、光ファイバ心線3は光コネクタ4及
びコネクタハウジング8で相互に接続する。Therefore, after the wire has been extended, a portion of the wire 2 slightly in front of the terminal portion 7 is clamped to the tower using a retaining means (not shown), and the wire 3 is connected to the sixth wire at a location near the connector housing 8.
The cut wire 2 is separated as shown in Figure 6 (C), and the cut wire 2 is peeled off as shown in Figure 6 (C).In this way, the optical fiber core 3 becomes free. Therefore, the electric wire 2 is drawn into the wire 2 until the tension that was acting on it becomes zero.The stripped and unnecessary portion of the electric wire 2 is cut off, and the state shown in FIG. 6(D) is created.In this state, Although not shown, the cut electric wires 2 are connected to each other using a connecting means such as a crimp fitting, the next section of the composite cable and the electric wires 2 are connected with a jumper wire, and the optical fiber core 3 is connected to the optical connector 4 and the connector housing. 8 to connect each other.
[発明の効果]
以上説明したように本発明に係る複合ケーブルの布設方
法では、電線の端部に光ファイバ心線を固定手段で固定
した状態で延線するので、延線時に電線が延びても光フ
ァイバ心線が電線内に引き込まれるのを防止することが
できる。従って、電線の端部の外に光ファイバ心線の余
長部を設けなくてよくなり、また、延線時に光ファイバ
心線が電線端部で損傷されるのを防止することができる
。[Effects of the Invention] As explained above, in the method for laying a composite cable according to the present invention, the optical fiber core wire is fixed to the end of the electric wire with the fixing means, and therefore the electric wire is not stretched during the wiring. It is also possible to prevent the optical fiber core from being drawn into the electric wire. Therefore, it is not necessary to provide an extra length of the coated optical fiber outside the end of the wire, and it is also possible to prevent the coated optical fiber from being damaged at the end of the wire during stretching.
特に本発明では、延線後に電線をその端部側で所要長さ
切除するので、延線時に生じた電線内の光ファイバ心線
の張力が解放され、光ファイバ心線の伝送特性の悪化や
切断事故を防止することができる。In particular, in the present invention, since the required length of the wire is cut off at the end of the wire after the wire is stretched, the tension in the optical fiber core inside the wire that occurs during the wire stretching is released, which reduces the deterioration of the transmission characteristics of the optical fiber core. Cutting accidents can be prevented.
第1図は本発明に係る複合ケーブルの布設方法の第1実
施例で用いる複合ケーブルの端末部の概略構成を示す縦
断面図、第2図はこの第1実施例の延線後の電線剥離工
程を示す側面図、第3図はこの第1実施例の剥離電線の
切除後の複合ケーブルの端末部を示す側面図、第4図は
本発明に係る複合ケーブルの布設方法の第2実施例で用
いる複合ケーブルの端末部の一部破断正面図、第5図は
第4図の右側面図、第6図(A)〜(D)は第2実施例
の延線後の処理の工程を示す説明図である。
1・・・複合ケーブル、2・・・電線、3・・・光ファ
イバ心線、4・・・光コネクタ、5・・・固定手段、6
・・・延線クランプ、7・・・端末部、8・・・コネク
タハウジング。FIG. 1 is a vertical cross-sectional view showing a schematic configuration of the terminal part of a composite cable used in a first embodiment of the method for laying a composite cable according to the present invention, and FIG. FIG. 3 is a side view showing the process, FIG. 3 is a side view showing the end portion of the composite cable after the stripped wire of the first embodiment is removed, and FIG. 4 is a second embodiment of the method of laying a composite cable according to the present invention. Fig. 5 is a right side view of Fig. 4, and Fig. 6 (A) to (D) show the processing steps after wire extension in the second embodiment. FIG. DESCRIPTION OF SYMBOLS 1... Composite cable, 2... Electric wire, 3... Optical fiber core wire, 4... Optical connector, 5... Fixing means, 6
... Wire extension clamp, 7 ... Terminal section, 8 ... Connector housing.
Claims (1)
布設方法において、前記電線の端部から導出された前記
光ファイバ心線の端部に光コネクタを取付け且つ前記電
線の端部から導出された前記光ファイバ心線を固定手段
で前記電線の端部に固定しておき、かかる状態で前記複
合ケーブルを延線し、延線後に前記電線の端部を所要長
さ切除して前記電線内の前記光ファイバ心線の張力を解
放することを特徴とする複合ケーブルの布設方法。In a method for installing a composite cable in which an optical fiber core is built into an electric wire, an optical connector is attached to an end of the optical fiber core led out from the end of the electric wire, and an optical connector is attached to the end of the optical fiber core led out from the end of the electric wire. The optical fiber core wire is fixed to the end of the electric wire by a fixing means, the composite cable is extended in this state, and after the extension, the end of the electric wire is cut off to a required length and A method for laying a composite cable, characterized in that the tension of the optical fiber core wire is released.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62011386A JPS63181607A (en) | 1987-01-22 | 1987-01-22 | Installation of composite cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62011386A JPS63181607A (en) | 1987-01-22 | 1987-01-22 | Installation of composite cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63181607A true JPS63181607A (en) | 1988-07-26 |
Family
ID=11776570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62011386A Pending JPS63181607A (en) | 1987-01-22 | 1987-01-22 | Installation of composite cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63181607A (en) |
-
1987
- 1987-01-22 JP JP62011386A patent/JPS63181607A/en active Pending
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