JPH06315214A - Wire stringing method - Google Patents
Wire stringing methodInfo
- Publication number
- JPH06315214A JPH06315214A JP12311893A JP12311893A JPH06315214A JP H06315214 A JPH06315214 A JP H06315214A JP 12311893 A JP12311893 A JP 12311893A JP 12311893 A JP12311893 A JP 12311893A JP H06315214 A JPH06315214 A JP H06315214A
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- Prior art keywords
- wire
- work
- wire drawing
- place
- machine
- Prior art date
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は新設の配電線や送電線あ
るいは架空地線等の延線や張替えのための延線工法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire extension method for extending or replacing a new distribution line, power transmission line or overhead ground line.
【０００２】[0002]
【従来の技術】電線の延線や撤去については種々の工法
が知られているが、引き通し工法と一般に呼ばれる工法
は、配電分野と送電分野で多少の相違があるものの、何
れも基本的には以下のようにしてなされている。即ち、
図７に示すように、延線作業区間の一端側に第１作業場
Ａが他端側に第２作業場Ｂがそれぞれ設けられ、新設電
線の延線の場合であれば、第１作業場Ａから一定の制動
を掛けつつ電線Ｃを繰り出す一方で、第２作業場Ｂで電
線Ｃの先端に接続された延線ロープＲを巻き取ることに
より延線がなされる。また、既設電線の撤去の場合であ
れば、第１作業場側から繰り出される延線ロープにより
一定の制動を掛けつつ既設電線を第２作業場で巻き取る
ことにより撤去がなされている。2. Description of the Related Art Various methods are known for extending and removing electric wires, but the method generally called a pull-through method is basically different in both the power distribution field and the power transmission field, though they are basically different from each other. Is done as follows. That is,
As shown in FIG. 7, a first work site A is provided at one end of the wire extension work section and a second work site B is provided at the other end of the wire extension work section. While the electric wire C is being fed out while applying the brake, the wire is extended by winding the wire rope R connected to the tip of the electric wire C at the second work site B. Further, in the case of removing the existing electric wire, the existing electric wire is removed by winding the existing electric wire at the second working place while applying a certain amount of braking by the wire rope extended from the first working place side.
【０００３】このような工法についは多くの工夫が既に
なされ、それなりに安全且つ効率的に作業を進めること
ができるようになっているものの、未だ解決が求められ
ている課題も少なくない。例えば、延線途中において必
要となる電線や延線ロープ、あるいは必要な付属器具等
の接続作業もその一つである。この接続作業は図７にお
ける第１作業場Ａ乃至第２作業場Ｂの立上げ部Ｓｕや引
下げ部Ｓｄにおいて行われるが、これらの立上げ部Ｓｕ
や引下げ部Ｓｄにも一定の張力が掛かっており、この張
力を保った状態で接続作業を行う必要がある。このため
張力の掛かった側を何らかの手段で仮止めする作業が不
可欠となっているが、この仮止め作業を伴う接続作業は
大変な手間を要するもので、その改善が求められてい
る。Although many methods have already been devised for such a construction method so that the work can be carried out safely and efficiently as it is, there are still many problems to be solved. For example, one of them is a work of connecting an electric wire, a wire rope, or a necessary accessory in the middle of the wire drawing. This connection work is performed at the rising part Su and the pulling down part Sd of the first work area A to the second work area B in FIG.
A certain tension is also applied to the pull-down portion Sd and the pull-down portion Sd, and it is necessary to perform the connection work while maintaining this tension. For this reason, it is indispensable to temporarily fix the side to which the tension is applied by some means, but the connecting work involving this temporary work requires a great deal of work, and its improvement is required.
【０００４】他の課題として、特に街中での工事が比較
的多い配電分野で問題になるが、延線作業区間の両端で
の各作業場の確保に伴う問題がある。即ち、作業場のス
ペースが十分取れなかったり、立地条件が悪かったりす
ると、延線作業車のような機械装置等を持ち込むことが
できない場合や、また持ち込めてもそれを十分に安定さ
せた状態で作動させることができない場合がある。そし
て、その場合には結局、張力を掛けずに電線を地上まで
垂れ下げた状態で延線せざるを得なくなり、地上の障害
物との関係で種々のトラブルを伴うことになる。Another problem is a problem particularly in the electric power distribution field, where there is a relatively large amount of construction work in the city. However, there is a problem associated with securing work sites at both ends of the wire extension work section. That is, if there is not enough space in the work place or the location is bad, it is not possible to bring in mechanical equipment such as a wire drawing work vehicle, or even if it is brought in, it will operate in a sufficiently stable state. In some cases, it cannot be done. Then, in that case, after all, the electric wire is forced to be extended in a state of being hung down to the ground without applying tension, which causes various troubles in relation to the obstacle on the ground.
【０００５】また、配電分野においては既設架空地線の
張替え作業についても安全性や効率性についての課題が
ある。既設架空地線の張替え工法としては、例えば特公
平４−４４４８２号や特開平１−９１６０６号公報等に
開示されるものが知られている。Further, in the field of electric power distribution, there is a problem regarding safety and efficiency in the work of re-installing the existing overhead ground wire. As a method for replacing the existing overhead ground wire, those disclosed in, for example, Japanese Examined Patent Publication No. 4-44482 and Japanese Patent Laid-Open No. 1-91606 are known.
【０００６】これらに開示の技術は、何れも下方の高圧
配電線を活線状態のままにして作業を進めることを前提
とし、長年の間に錆びて脆くなっている既設架空地線を
破断によるトラブルが生じないようにして撤去するため
にそれぞれの工夫をなしているものであるが、何れも高
圧配電線に対する防護処置や作業者の保護具を不可欠と
している点や撤去中の既設架空地線が破断した場合に落
下する等のトラブルを避けられない等で安全性に不十分
なものがあり、また多くの専用工具や器具を必要とする
ことからその設置等の準備作業や撤収作業に多くの労力
と時間を要するので効率性に難がある。[0006] In all of the techniques disclosed in these, it is premised that the work is advanced with the lower high-voltage distribution line in a live state, and the existing overhead ground wire that has been rusted and brittle for many years is broken. Although each device is devised to remove it without causing trouble, they both require protective measures for high-voltage distribution lines and protective equipment for workers, and the existing overhead ground wire being removed. There are some things that are inadequate in safety because it can not avoid troubles such as falling when it breaks, and many specialized tools and equipment are required, so it is often used for preparation work such as installation and withdrawal work However, it takes time and effort to reduce efficiency.
【０００７】さらに、配電分野においては既設配電線の
張替えについても、無停電化のために用いるバイパス線
の延線や撤収について以下のような課題が残されてい
る。バイパス線の延線工法としては、例えば特公平４−
２７７６３号公報に開示されるものが知られている。こ
の工法は、張力を掛けることのできない構造のケーブル
がバイパス線として用いられる場合の工法で、バイパス
線に張力を掛けないようにするために、先ず必要な区間
に支持線を張り、それからこの支持線を利用して多数の
移動金車により一定間隔でバイパス線を抱持した状態で
延線するようにしているもので、支持線の設置作業や撤
収作業、移動金車の供給や回収等により作業量が非常に
多くなってしまい、また多数の移動金車は勿論としてそ
の外にも多くの機器を必要とするなど、多くの短所を持
っている。Furthermore, in the field of power distribution, the following problems remain regarding extension and withdrawal of bypass lines used for uninterruptible power supply even when replacing existing distribution lines. As a method of extending the bypass line, for example, Japanese Patent Publication No. 4-
The one disclosed in Japanese Patent No. 27763 is known. This method is used when a cable with a structure that cannot be tensioned is used as a bypass line.To prevent tension from being applied to the bypass line, first attach a support line to the necessary section, and then install this support line. It is designed to be extended while holding bypass lines at regular intervals using a number of mobile wagons using lines, and it is possible to install and withdraw support lines, supply and recover mobile wagons, etc. It has a lot of disadvantages such as a large amount of work and a large number of moving wagons as well as a lot of other equipment.
【０００８】そこで、最近はある程度の張力を掛けて引
き通し工法で延線できるようなバイパス線を開発するこ
とで改良が進められているが、この耐張力形のバイパス
線の延線及び撤収についても課題が残されている。即
ち、バイパス線は予め整えられた種々の長さのものを作
業区間の長さに応じて接続して用いるようになってお
り、これを引き通し工法で延線するとなると、前述した
接続作業の問題が生じる。また、引き通し工法に伴う前
述した各作業場の確保に伴う問題もある。Therefore, recently, improvement has been advanced by developing a bypass wire which can be drawn by applying a certain amount of tension and pulling it through by a construction method. Regarding the extension and withdrawal of this tensile strength type bypass wire There are still challenges. That is, the bypass line is designed so that various lengths prepared in advance are connected and used according to the length of the work section, and if this is extended by the passing method, the above-mentioned connection work will be performed. The problem arises. In addition, there is a problem associated with securing the above-mentioned workplaces associated with the pull-through method.
【０００９】[0009]
【発明が解決しようとする課題】以上のような事情を背
景になされたのが本発明で、延線中において必要となる
電線や延線ロープ等の接続作業を仮止め作業のような手
間の掛かる作業を伴うことなく行え、しかも延線作業区
間の両端の各作業場の条件が悪くとも必要な張力を掛け
て延線を行える延線工法の提供を目的としている。SUMMARY OF THE INVENTION The present invention has been made against the background of the above circumstances, and it is a laborious work such as temporary fixing work for connecting electric wires, wire ropes, etc. which are required during wire drawing. It is an object of the present invention to provide a wire-drawing method that can be carried out without involving work and that can perform wire drawing by applying a required tension even if the conditions at each work site at both ends of the wire-drawing work section are bad.
【００１０】また、本発明は、配電分野の架空地線の張
替えに際して既設架空地線の撤去ををより安全且つ効率
的に行うことのできる延線工法の提供を目的としてい
る。It is another object of the present invention to provide a wire extension method capable of safely and efficiently removing an existing overhead ground wire when replacing an overhead ground wire in the field of power distribution.
【００１１】さらに、本発明は、必要なバイパス線の延
線や撤収を効率的に行える無停電張替えの延線工法の提
供を目的としている。Another object of the present invention is to provide an uninterruptible re-rolling wire extension method capable of efficiently extending and withdrawing a required bypass wire.
【００１２】[0012]
【課題を解決するための手段】本発明による延線工法
は、延線作業区間の一端側に第１作業場を他端側に第２
作業場をそれぞれ設け、これらの各作業場において線状
体の繰り出しや巻取りを行いつつ新線の延線や旧線の撤
去を行うもので、挟持間隙が弾性的に可変となる挟持手
段を線状体の制動や強制送出のために少なくも一対備え
てなる高所延線機を第１作業場に隣接の電柱又は鉄塔上
に設置し、この高所延線機にて線状体を制動したり強制
送出することにより第１作業場における立上げ部や引下
げ部を無張力状態として作業を行うようにしてなってい
る。In the wire drawing method according to the present invention, a first work area is provided at one end of the wire drawing work section and a second work area is provided at the other end.
Each work place has its own work. In each of these work places, the wire is unrolled and wound, while the new wire is extended and the old wire is removed. Install a high-altitude wire drawing machine equipped with at least one pair for braking or forcibly sending out the body on the utility pole or steel tower adjacent to the first work site, and use this high-area wire drawing machine to brake the linear body. By forcibly sending, the work is performed with the rising portion and the pulling portion in the first work place being in a tensionless state.
【００１３】この延線工法によると、延線中において電
線や延線ロープ等の線状体について接続作業を必要とす
る第１作業場における立上げ部乃至引下げ部が無張力状
態となっているので、特別の処置を施さずともそのまま
接続作業を行うことができ、接続作業の簡易化を図れ
る。According to this wire-drawing method, the rising portion or the pulling-down portion in the first work place, which requires connection work for the wire or the wire rope during the wire drawing, is in a tensionless state. The connection work can be performed without any special treatment, and the connection work can be simplified.
【００１４】ここで、このようにして接続処理を施され
た線状体は径が異なる接続部分、つまり異径部分を持っ
たまま高所延線機を通過することになるが、このような
異径部分は高所延線機の挟持手段に与えられている弾性
構造、つまり挟持間隙が弾性的に可変となる構造により
その径の大小が吸収されるので何らの抵抗もなく通過す
ることができる。このような異径部分における凹凸を吸
収する弾性構造は気密性中空ゴムローラで挟持手段を形
成するようにすると、より柔軟で大きな吸収力が得ら
れ、しかも制動や強制送出のための力の伝達も効率的な
ものにできるので、特に好ましい。Here, the linear body thus subjected to the connecting process passes through the high-place wire drawing machine while holding the connecting portions having different diameters, that is, the different diameter portions. The different diameter portion is absorbed by the elastic structure given to the clamping means of the high-altitude wire drawing machine, that is, the structure in which the clamping gap is elastically variable, so that the difference in diameter is absorbed, so that it can pass without any resistance. it can. If the elastic structure that absorbs the irregularities in the different diameter portion forms the sandwiching means with the airtight hollow rubber roller, a more flexible and large absorbing force can be obtained, and the force transmission for braking or forced delivery can be achieved. It is particularly preferable because it can be efficient.
【００１５】また、この延線工法によると、地上に延線
作業車のような機械装置等を設置する必要が必ずしもな
いので、作業区間の端部に十分な作業場を確保できない
場合でも、必要な延線張力を安定的に確保しながら作業
を進めることができ、地上の障害物との干渉を招かずに
済む。Further, according to this wire-drawing method, it is not always necessary to install a mechanical device such as a wire-drawing work vehicle on the ground, so that it is necessary even when a sufficient work space cannot be secured at the end of the work section. Work can be carried out while stably securing the wire drawing tension, and it is possible to avoid interference with obstacles on the ground.
【００１６】接続作業は新線の延線か旧線の撤去かによ
って第１及び第２の各作業場の何れかで主に行われるも
のであるが、場合によっては両方の作業場で必要になる
場合もある。また、作業場としての条件が第１作業場側
だけでなく第２作業場側についても悪い場合もある。そ
こで、このような場合については、第２作業場に隣接の
電柱又は鉄塔上にも第２の高所延線機を設置するように
し、この第２の高所延線機にて線状体を制動したり強制
送出することにより、第２作業場における引下げ部や立
上げ部も無張力状態とするようにすることで対処する。The connection work is mainly performed in either the first or the second work site depending on whether the new line is extended or the old line is removed, but in some cases, it is necessary at both work sites. There is also. In addition, the condition as a workplace may be bad not only on the side of the first workplace but also on the side of the second workplace. Therefore, in such a case, a second high-altitude wire drawing machine should also be installed on an electric pole or a steel tower adjacent to the second work site, and the second high-altitude wire drawing machine should be used to form the linear body. This can be dealt with by making the pull-down section and the start-up section in the second work area also in a tensionless state by braking or forcibly sending out.
【００１７】本発明による既設架空地線の撤去のための
延線工法は、上記延線工法の基本的構成を利用するもの
で、上記と同様の高所延線機を用いるものとしており、
この高所延線機を撤去作業区間の一端側の第１作業場に
隣接の電柱の地線キャップにその上端から所定高さだけ
突出するように取り付けると共に、撤去作業区間の既設
架空地線の各端に延線ロープを接続し、それから高所延
線機及び撤去作業区間の他端側の第２作業場に設置のウ
インチにて両端の延線ロープを介し撤去作業区間の既設
架空地線を所定の張力状態で張り上げた後、この張り上
げた状態を保ちつつ既設架空地線を高所延線機にて第１
作業場に向けて強制送出することにより、第１作業場に
おける引下げ部を無張力状態として既設架空地線の回収
を行うようにしてなっている。The wire-drawing method for removing an existing overhead ground wire according to the present invention uses the basic construction of the above-mentioned wire-drawing method, and uses the same high-altitude wire drawing machine as described above.
This high-altitude wire extension machine is attached to the ground wire cap of the adjacent utility pole at the first work site on one end side of the removal work section so as to project from the upper end by a predetermined height, and each of the existing overhead ground wires of the removal work section is attached. Connect the wire extension rope to the end, and then use the winch installed at the second work site on the other side of the highway wire drawing machine and the removal work section to specify the existing overhead ground wire of the removal work section through the wire extension rope at both ends. After pulling up under the tension state, the existing overhead ground wire can be
By forcibly sending out to the work place, the existing overhead ground wire is collected with the pulling down portion in the first work place in a tensionless state.
【００１８】この既設架空地線撤去工法によると、第１
作業場における引下げ部の無張力状態を利用することに
より、周囲が錆びて破断し易くなっている既設架空地線
を、破断が生じ難い状態で、しかもたとえ破断が生じて
も事故の原因となる落下等を生じることのない状態で撤
去することができる。According to this existing overhead ground wire removal method,
By using the tension-free state of the pulling down part in the work area, the existing overhead ground wire, which is rusted around and prone to breakage, falls in a state where breakage does not easily occur, and even if breakage occurs it may cause an accident. It can be removed without producing
【００１９】以上の点を具体的に説明すると以下の通り
である。即ち、当発明者等が試験を繰り返して得たデー
タによると、錆の進んだ既設架空地線は破断し易いもの
の、それは曲げ的に荷重が掛かる場合であって、その軸
線方向に荷重が掛かる場合については、少なくとも１ト
ン程度の荷重には十分に耐えうるだけの強度を残してい
る。従って、この条件を満足させる状態で張力を掛ける
ようにすれば破断を生じることはまずない。そして、本
発明によると、既設架空地線の撤去に際して曲げ的に荷
重が生じ得る部位である引下げ部では自重以外に荷重が
掛かることがなく、水平部分で軸線方向にのみ荷重が掛
かるようになっているので、上記条件を満足させること
ができる。つまり、事故の原因となるような落下をもた
らす水平部分については破断を生じることのない状態で
既設架空地線を撤去することができる。また、たとえ自
重による曲げ的荷重で引下げ部に破断が生じても、この
場合はそこから下の部分が落下するだけで済むので、事
故に結び付くようなことはない。The above points will be specifically described as follows. That is, according to the data obtained by repeating the test by the present inventors, although the existing overhead ground wire with advanced rust is easily broken, it is a case where a load is applied flexibly, and a load is applied in the axial direction. In some cases, the strength is sufficient to withstand a load of at least about 1 ton. Therefore, if tension is applied while satisfying this condition, breakage is unlikely to occur. Further, according to the present invention, when the existing overhead ground wire is removed, no load other than its own weight is applied to the pull-down portion, which is a portion where a load may be flexurally generated, and a load is applied only in the axial direction in the horizontal portion. Therefore, the above condition can be satisfied. That is, the existing overhead ground wire can be removed without causing breakage in the horizontal portion that causes a fall that causes an accident. Further, even if the pull-down portion is broken due to a bending load due to its own weight, in this case, the lower portion only has to fall, so it does not lead to an accident.
【００２０】また、この既設架空地線撤去工法による
と、専用の機器や工具が主には高所延線機だけで済むの
で、その準備作業や撤収作業の手間を従来に較べ非常に
少なくすることができるし、さらに必要な作業が何れも
高所作業車を利用して行うことのできる範囲のものであ
るので、作業者の保護具を不要にすることができると共
に、地線キャップより高い位置に設置した高所延線機に
より撤去対象の既設架空地線を高く張り上げて活線状態
の高圧配電線から十分に離した状態で撤去作業を進める
ことができるので、高圧配電線に対する防護処置も簡易
化できる。Further, according to this existing overhead ground wire removal construction method, since dedicated equipment and tools are mainly required only for the high-altitude wire-drawing machine, the preparation work and the withdrawal work are greatly reduced as compared with the conventional method. In addition, since all necessary work is within the range that can be performed using a work platform for aerial work, protective equipment for workers can be eliminated and it is higher than the ground wire cap. Since the existing overhead ground wire to be removed can be pulled up by the high-altitude wire extension machine installed at the position and the removal work can be proceeded while being sufficiently separated from the live high-voltage distribution line, protective measures for the high-voltage distribution line are possible. Can be simplified.
【００２１】さらに、この既設架空地線撤去工法でも、
その引下げ部や立上げ部の無張力状態は、上記延線工法
と同様に、接続作業の簡易化や作業場条件に対する融通
性について機能し、また高所延線機の挟持手段における
弾性構造が異径部分の通過容易性に機能する。従って、
第２作業場に隣接の電柱にも第２の高所延線機を設置す
るようにし、この第２の高所延線機と第１作業場側の第
１の高所延線機とにより既設架空地線の張上げ及び回収
の際の張上げ状態維持を行うことにより第２作業場にお
ける立上げ部も無張力状態とすれば、これらのメリット
をさらに有効に活かすことができる。Furthermore, even with this existing overhead ground wire removal construction method,
The tension-free state of the pull-down part and the start-up part functions similarly to the above-mentioned wire-drawing method with respect to the simplification of the connection work and the flexibility with respect to the workplace conditions, and the elastic structure in the clamping means of the high-altitude wire drawing machine is different. It functions to facilitate passage of the diameter part. Therefore,
A second high-altitude wire drawing machine should be installed also on a telephone pole adjacent to the second work area, and an existing overhead wire extension machine should be installed by this second high-altitude wire drawing machine and the first high-area wire drawing machine on the side of the first work area. These merits can be more effectively utilized by maintaining the tensioned state at the time of pulling up and collecting the ground wire and keeping the rising portion in the second work area tensionless.
【００２２】このような既設架空地線撤去工法について
は、既設架空地線の軸線方向強度が十分にある場合に
は、その第２作業場側端に延線ロープに代えて新設架空
地線を接続し、既設架空地線の撤去と同時に新設架空地
線の延線も行うようにすることも可能で、このようにす
ることにより、架空地線の張り替えをより効率的に行え
る。Regarding such an existing overhead ground wire removal method, if the existing overhead ground wire has a sufficient strength in the axial direction, a new overhead ground wire is connected to the end of the second work site instead of the extension rope. However, it is also possible to extend the existing overhead ground wire at the same time as removing the existing overhead ground wire, and by doing so, the replacement of the overhead ground wire can be performed more efficiently.
【００２３】本発明による無停電張替えの延線工法は、
同じく上記延線工法の基本的構成を利用するもので、上
記と同様の高所延線機を用いてバイパス線の延線及び回
収を行なうようにしており、張替え作業区間の一端の第
１作業場に隣接の電柱の中間高さ位置に高所延線機を取
り付け、バイパス線の延線の際には、バイパス線及びこ
れに接続された延線ロープからなる線状体に高所延線機
にて制動を掛けることにより第１作業場における立上げ
部を無張力状態として延線を行い、バイパス線の回収の
際には、線状体を高所延線機にて第１作業場に向けて強
制送出することにより第１作業場における引下げ部を無
張力状態としてバイパス線の回収を行うようにしてなっ
ている。The wire extension method for uninterruptible reconnection according to the present invention is
Similarly, the basic construction of the above-mentioned wire drawing method is used, and the same high-place wire drawing machine as described above is used for wire drawing and recovery of the bypass wire, and the first work site at one end of the reconnection work section. At the mid-height position of the adjacent utility pole, a high-place wire drawing machine is installed.When the bypass wire is drawn, the high-wire drawing machine is installed on the linear body consisting of the bypass wire and the wire rope connected to the bypass wire. When the bypass wire is collected, the linear body is directed to the first work site by a wire drawing machine at a high place when braking is applied to make the start-up part in the first work place tensionless. By forcibly sending out, the pull-down part in the first work place is brought into a tension-free state to recover the bypass line.
【００２４】この無停電張替工法では、バイパス線の延
線に際しては第１作業場における立上げ部の無張力状態
を接続作業の簡易化に利用し、またバイパス線の回収に
際しては第１作業場における引下げ部の無張力状態を接
続部の分離作業の簡易化に利用し、さらにバイパス線の
巻取り作業の簡易化についても利用し、この結果、全体
として効率的に作業を進めることができるようになって
いる。接続作業の簡易化は上で既に説明した通りであ
り、また接続部の分離作業の簡易化も同様であるので、
ここでは巻取り作業の簡易化について説明する。即ち、
第１作業場における引下げ部が無張力状態であるので、
撤収するバイパス線のケーブルドラムへの巻取りを人手
で行うことができ、通常は第２作業場にあるウインチ用
の作業車をわざわざ第１作業場に移動して来る手間を省
くことができるということである。また、このことは作
業車を導入できない立地条件でも効率的に作業を進める
ことができるという作業場条件に対する融通性にも通じ
ることになる。[0024] In this uninterruptible tension replacement method, the tension-free state of the start-up part in the first workshop is used to simplify the connecting work when the bypass line is extended, and the bypass line is collected in the first workshop. The tension-free state of the pull-down part is used to simplify the work of separating the connection part, and also to simplify the work of winding the bypass wire, so that the work as a whole can proceed efficiently. Has become. The simplification of the connection work is as already explained above, and the simplification of the connection part separation work is also the same,
Here, simplification of the winding operation will be described. That is,
Since the pull-down part in the first work area is tensionless,
By winding the bypass wire to be withdrawn onto the cable drum by hand, it is possible to save the trouble of moving the winch work vehicle normally located at the second workshop to the first workshop. is there. Further, this also leads to the flexibility of the workplace condition that the work can be efficiently performed even in the location condition where the work vehicle cannot be introduced.
【００２５】[0025]
【実施例】以下、本発明の実施例を説明する。第１実施例 この実施例は配電線の延線についての例である。図１に
示すように、延線作業区間の各端には第１作業場Ａと第
２作業場Ｂを設け、繰り出し側となる第１作業場Ａには
ケーブルドラムＤを、また巻取り側となる第２作業場Ｂ
には車軸ウインチ用の作業車Ｊをそれぞれ設置する。EXAMPLES Examples of the present invention will be described below. First Embodiment This embodiment is an example of extending a distribution line. As shown in FIG. 1, a first work area A and a second work area B are provided at each end of the extended wire work section, a cable drum D is provided at the first work area A on the payout side, and a first work area A at the winding side. 2 workshop B
A work vehicle J for axle winches is installed in each of the above.
【００２６】また、第１作業場Ａ及び第２作業場Ｂそれ
ぞれに隣接する電柱Ｐａ、Ｐｂにその腕金Ｍのレベルに
合わせて高所延線機１（１ａ、１ｂ）を取り付けると共
に、中間の電柱Ｐｘの腕金Ｍにガイド用のローラユニッ
トＬを取り付ける。Further, the high-position wire-drawing machine 1 (1a, 1b) is attached to the utility poles Pa and Pb adjacent to the first work area A and the second work area B, respectively, in accordance with the level of the arm M, and an intermediate utility pole. The roller unit L for guide is attached to the arm M of Px.
【００２７】ここで、高所延線機１は、図２〜図４に示
すように、上下一対の挟持手段２、２と駆動手段３、及
び前後一対のガイドローラユニット４、４を備えてなる
もので、その挟持手段２は、球状に形成され内部に一定
圧で気体が充填さた中空ゴムローラにより形成され、ま
た駆動手段３は減速部５とモータ部６よりなっている。
そして、両挟持手段２、２の間に挟持する電線や延線ロ
ープ等の線状体を駆動手段３から伝えられるブレーキ力
や回転駆動力に応じて一定の力で制動したり、強制的に
送り出したりできるようにされており、また中空ゴムロ
ーラで形成された両挟持手段２、２が弾性変形すること
により、線状体の接続部のような異径部分でも他の部分
と同様に制動したり、送り出したりできるようにされて
いる。尚、この例では比較的延線張力の小さい配電線の
延線の例であるので、挟持手段２を一対としているが、
要求される延線張力が大きい場合にはそれに応じて複数
対を多連にして設けることになる。As shown in FIGS. 2 to 4, the high-altitude wire drawing machine 1 is provided with a pair of upper and lower clamping means 2, 2 and a driving means 3, and a pair of front and rear guide roller units 4, 4. The holding means 2 is formed by a hollow rubber roller formed in a spherical shape and filled with gas at a constant pressure, and the driving means 3 is composed of a speed reducing portion 5 and a motor portion 6.
Then, a linear body such as an electric wire or a wire rope to be sandwiched between the two clamping means 2 and 2 is braked by a constant force according to the braking force or the rotational driving force transmitted from the driving means 3, or is forcibly forced. The holding means 2, 2 formed of hollow rubber rollers are elastically deformed so that even a different diameter portion such as a connecting portion of the linear body can be braked like other portions. It can be sent and received. Since this example is an example of extending a distribution line having a relatively small tension, the sandwiching means 2 is a pair.
When the required drawing wire tension is high, a plurality of pairs are provided in a multiple manner accordingly.
【００２８】以上のようにして準備が整ったら以下のよ
うにして延線を進める。第１作業場Ａのケーブルドラム
Ｄから繰り出される電線Ｃに電柱Ｐａ上の高所延線機１
ａで制動を掛けながら送り出す一方で、電線Ｃを牽引す
る延線ロープＲを電柱Ｐｂ上の高所延線機１ｂで第２作
業場Ｂ側に強制的に送り出すと共に、この高所延線機１
ｂで強制的に送り出されてくる延線ロープＲを第２作業
場Ｂの作業車Ｊの車軸ウインチＷで巻き取って延線を進
める。When the preparation is completed as described above, the wire drawing is proceeded as follows. The high-altitude wire-drawing machine 1 on the electric pole Pa is attached to the electric wire C fed from the cable drum D of the first workplace A.
At the same time as sending out while braking with a, the wire rope R that pulls the electric wire C is forcibly sent to the side of the second work site B by the wire drawing machine 1b on the electric pole Pb, and this wire drawing machine 1
The wire-drawing rope R that is forcibly sent out at b is wound up by the axle winch W of the work vehicle J at the second work site B to advance the wire-drawing.
【００２９】この結果、第１及び第２の各作業場Ａ、Ｂ
における立上げ部Ｓｕ及び引下げ部Ｓｄを自重で垂れ下
がる状態の無張力状態とすることができる。従って、延
線途中で電線Ｃと延線ロープＲ、あるいは電線同士を接
続するについては、その間、電線Ｃや延線ロープＲの移
動を一時的に止めるだけで接続作業を行うことができ、
その作業性を大幅に向上させることができる。As a result, the first and second workplaces A and B
The rising portion Su and the pulling-down portion Sd can be in a tensionless state in which they are hung down by their own weight. Therefore, when connecting the wire C and the wire rope R, or the wires to each other during the wire extension, the connection work can be performed by temporarily stopping the movement of the wire C and the wire rope R during that time.
The workability can be greatly improved.
【００３０】このように各作業場Ａ、Ｂに隣接して設け
る高所延線機１は立上げ部Ｓｕや引下げ部Ｓｄの無張力
化をもたらすものであるが、必要に応じてこの高所延線
機１を中間の電柱Ｐｘにも設けることにより、より小さ
い延線張力で必要な弛度状態を保てるようにして延線を
進めることも可能である。As described above, the high-altitude wire-drawing machine 1 provided adjacent to each of the workplaces A and B brings about tension-free operation of the rising portion Su and the pulling-down portion Sd. By providing the wire machine 1 also on the intermediate utility pole Px, it is possible to advance the wire drawing while maintaining the required slack state with a smaller wire drawing tension.
【００３１】尚、この例では第２作業場Ｂに作業車Ｊを
配置し、この作業車Ｊを用いた車軸ウインチＷで延線ロ
ープＲの取込みを行うようにしているが、上記のように
第２作業場Ｂにおける引下げ部Ｓｄが無張力状態となっ
ているので、延線ロープＲの取込みは人手だけでも容易
に行うことができ、従って基本的には車軸ウインチＷを
用いることは必ずしも必要でない。In this example, the work vehicle J is arranged in the second work site B, and the wire rope R is taken in by the axle winch W using the work vehicle J. However, as described above, (2) Since the pull-down portion Sd in the work space B is in a tension-free state, the wire rope R can be easily taken in by only manpower, and therefore basically the use of the axle winch W is not always necessary.
【００３２】第２実施例 この実施例は配電分野についての架空地線の張替えの例
である。この場合には、図５に示すように、第１、第２
の両作業場Ａ、Ｂ何れにもケーブルドラムＤを設置し、
また高所延線機１ａ、１ｂは、電柱Ｐａ、Ｐｂそれぞれ
の地線キャップＧｃに取り付ける。そして、その取り付
け状態は地線キャップＧｃの上端より地線キャップＧｃ
高さ分程度その挟持手段２、２による挟持位置が高くな
るようにする。 Second Embodiment This embodiment is an example of replacing the overhead ground wire in the field of power distribution. In this case, as shown in FIG.
Installed a cable drum D in both workshops A and B,
The high-altitude wire drawing machines 1a and 1b are attached to the ground wire caps Gc of the electric poles Pa and Pb, respectively. Then, the mounting state is such that the ground wire cap Gc
The holding position by the holding means 2 and 2 is increased by about the height.
【００３３】また、中間の電柱Ｐｘについては既設の架
空地線Ｇｆを地線キャップＧｃから外した後、地線キャ
ップＧｃの上端にガイド用のローラユニットＬを取り付
け、このローラユニットＬに架空地線Ｇｆを載せる。For the intermediate utility pole Px, the existing overhead ground wire Gf is removed from the ground wire cap Gc, and then a guide roller unit L is attached to the upper end of the ground wire cap Gc. Place the line Gf.
【００３４】それから、電柱Ｐａ、Ｐｂに架空地線Ｇｆ
の両端を図示せぬ張線器で仮止めした後、電柱Ｐｂ側端
部に延線ロープＲを接続し、またその電柱Ｐａ側端部に
新設用の架空地線Ｇｎを接続する。Then, the overhead ground wire Gf is attached to the utility poles Pa and Pb.
After temporarily fixing both ends of the electric wire with a wire tensioner (not shown), the extension rope R is connected to the end of the electric pole Pb side, and the overhead ground wire Gn for new installation is connected to the end of the electric pole Pa side.
【００３５】以上のようにして準備が整ったら以下のよ
うにして既設架空地線Ｇｆの撤去と新設架空地線Ｇｎの
延線を進める。先ず、両高所延線機１ａ、１ｂにより両
端の延線ロープＲ及び架空地線Ｇｎに適度な張力を掛け
て架空地線Ｇｆを吊るような状態にした後、一旦この状
態に止めて架空地線Ｇｆの両端の張線器による仮止めを
外す。When the preparation is completed as described above, the existing overhead ground wire Gf is removed and the new overhead ground wire Gn is extended as follows. First, the both-place wire drawing machines 1a and 1b are used to suspend the overhead ground wire Gf by applying an appropriate tension to the wire rope R and the overhead ground wire Gn at both ends, and then temporarily suspending this state to suspend the overhead wire. Remove the temporary fixing by the wire tensioner at both ends of the ground wire Gf.
【００３６】それから、架空地線Ｇｆを所定の張力条件
で図５中に想像線で示すような状態にまで張り上げた
後、この張り上げ状態を高所延線機１ａによる制動で維
持しつつ高所延線機１ｂにより第２作業場Ｂに向けて架
空地線Ｇｆを強制的に送り出す。Then, after the overhead ground wire Gf is tensioned up to a state shown by an imaginary line in FIG. 5 under a predetermined tension condition, the tensioned state is maintained by braking by the high-altitude wire drawing machine 1a. The overhead wire Gf is forcibly sent toward the second work site B by the wire drawing machine 1b.
【００３７】そして、高所延線機１ｂで送り出されてく
る架空地線Ｇｆは自重により湾曲状態で垂れ下がって引
下げ部Ｓｄを形成し、その先で第１作業場Ａのケーブル
ドラムＤに作業員の手作業で巻き取られる。一方、架空
地線Ｇｆの撤去が済むと同時に、その端に接続されてい
る架空地線Ｇｎの延線も済むので、これを従来と同様に
して各電柱の地線キャップに固定する。Then, the overhead ground wire Gf sent out by the high-altitude wire drawing machine 1b hangs down in a curved state by its own weight to form a pull-down portion Sd, and the cable drum D of the first work area A is further operated by the worker. It is wound up manually. On the other hand, since the overhead ground wire Gf is removed and at the same time the overhead ground wire Gn connected to the end of the overhead ground wire Gf is extended, it is fixed to the ground wire cap of each utility pole in the same manner as in the conventional case.
【００３８】第３実施例 この実施例はバイパス線を用いることにより無停電で行
う配電線の張替えの工法の例であるが、配電線自体の張
替え作業は従来と同様にしてなされるので、以下では主
にバイパス線の延線及び撤収について説明する。 Third Embodiment This embodiment is an example of a construction method for replacing the distribution line by uninterruptible power supply by using a bypass line. Since the replacement work of the distribution line itself is performed in the same manner as the conventional one, Now, the extension and withdrawal of bypass lines will be mainly explained.
【００３９】図６に示すように、第１作業場Ａ及び第２
作業場Ｂに隣接の電柱Ｐａ、Ｐｂに中間高さ位置で高所
延線機１ａ、１ｂを取り付けると共に、中間の電柱Ｐｘ
にガイド用のローラユニットＬを取り付ける。As shown in FIG. 6, the first workplace A and the second workplace A
At the intermediate height position, the height drawing machines 1a and 1b are attached to the utility poles Pa and Pb adjacent to the work place B, and the utility pole Px in the middle is also installed.
Attach the roller unit L for the guide to.
【００４０】以上のようにして準備が整ったら以下のよ
うにしてバイパス線の延線及び撤収を進める。先ず延線
であるが、第１作業場Ａに設置されたケーブルドラムＤ
から繰り出されるバイパス線Ｃに電柱Ｐａ上の高所延線
機１ａで制動を掛けながら送り出す一方で、バイパス線
Ｃを牽引する延線ロープＲを電柱Ｐｂ上の高所延線機１
ｂで強制的に第２作業場Ｂ側に送り出すと共に、この高
所延線機１ｂで強制的に送り出されてくる延線ロープＲ
を第２作業場Ｂの作業車Ｊの車軸ウインチＷで巻き取っ
て進める。尚、図中にＴで示すのはバイパス線Ｃ同士を
接続する接続体で、バイパス線Ｃの径の2.5 倍程度の径
を持っている。When the preparation is completed as described above, the bypass line is extended and withdrawn as follows. First, it is a wire extension, but the cable drum D installed in the first workshop A
The bypass line C fed out from the high-altitude wire extension machine 1a on the utility pole Pa is sent while being braked, while the extension rope R tow the bypass wire C is applied to the high-altitude wire extension machine 1 on the utility pole Pb.
The wire rope R is forcibly sent to the side of the second work site B at b, and is forcibly sent out by the wire drawing machine 1b at the high place.
Is wound up by the axle winch W of the work vehicle J in the second worksite B to proceed. In the figure, T is a connecting body for connecting the bypass lines C with each other, and has a diameter of about 2.5 times the diameter of the bypass lines C.
【００４１】次に撤収であるが、延線の場合とは逆に、
バイパス線Ｃに接続した延線ロープＲに高所延線機１ｂ
により制動を掛けつつ高所延線機１ａで第１作業場Ａ側
にバイパス線Ｃを強制的に送り出すと共に、このバイパ
ス線Ｃを第１作業場ＡのケーブルドラムＤに作業員の手
作業で巻き取る。ここで、バイパス線Ｃは通常３本必要
であるが、この３本をまとめて前記の手順で延線するよ
うにしてもよいし、また１本ずつ延線するようにしても
よい。Next, withdrawal, contrary to the case of wire extension,
The extension rope 1b connected to the bypass line C is connected to the extension rope R
The bypass line C is forcibly sent to the side of the first worksite A by the wire drawing machine 1a at high altitude while braking by the above, and the bypass line C is wound around the cable drum D of the first worksite A manually by the worker. . Here, usually three bypass lines C are required, but these three lines may be collectively extended by the above procedure, or may be extended one by one.
【００４２】[0042]
【発明の効果】以上説明したように本発明による延線工
法は、電柱や鉄塔上に設置した高所延線機により線状体
に制動を掛けたり強制的な送り出しを与えることによ
り、各作業場における立上げ部や引下げ部を無張力状態
として作業を進めるようにしていので、延線途中におい
て必要となる種々の接続作業を簡易化でき、また各作業
場の立地条件等に対する融通性を与えることができると
いう効果がある。また、本発明による既設架空地線撤去
工法は、上記延線工法における効果に加えて、破断し易
くなっている既設架空地線の撤去をより安全且つ効率的
に行うことができるという効果がある。また、本発明に
よる無停電張替工法は、上記延線工法における効果に加
えて、バイパス線の延線や撤収を効率的に行えるという
効果がある。As described above, the wire-drawing method according to the present invention is applied to each work site by braking or forcibly feeding the linear body by a wire drawing machine at a high place installed on a utility pole or a tower. Since the work is carried out with the start-up part and the pull-down part in the tensionless state, it is possible to simplify various connection work required during the wire drawing and to give flexibility to site conditions of each work site. The effect is that you can do it. Further, the existing overhead ground wire removal construction method according to the present invention has an effect that, in addition to the effect of the above-mentioned wire extension construction method, the existing overhead ground wire that is easily broken can be removed more safely and efficiently. . Further, the uninterruptible reconnection method according to the present invention has an effect that the bypass wire can be efficiently extended and withdrawn in addition to the effects of the above-described wire extension method.
【図１】本発明の第１実施例の延線工法による延線作業
状態の説明図。FIG. 1 is an explanatory view of a wire drawing work state according to a wire drawing method of a first embodiment of the present invention.
【図２】本発明の延線工法に用いる高所延線機の側面
図。FIG. 2 is a side view of a high place wire drawing machine used in the wire drawing method of the present invention.
【図３】図２中の矢示Ａ3 方向から見た平面図。FIG. 3 is a plan view seen from the direction of the arrow A 3 in FIG.
【図４】図２中の矢示Ａ4 方向から見た正面図。FIG. 4 is a front view seen from the direction of the arrow A 4 in FIG.
【図５】本発明の第２実施例の延線工法による延線作業
状態の説明図。FIG. 5 is an explanatory view of a wire drawing work state by a wire drawing method according to a second embodiment of the present invention.
【図６】本発明の第３実施例の延線工法による延線作業
状態の説明図。FIG. 6 is an explanatory view of a wire drawing work state by a wire drawing method according to a third embodiment of the present invention.
【図７】従来の延線工法による延線作業状態の説明図。FIG. 7 is an explanatory view of a wire drawing work state by a conventional wire drawing method.
１ 高所延線機 ２ 挟持手段 Ａ 第１作業場 Ｂ 第２作業場 Ｃ バイパス線 Ｇｃ 地線キャップ Ｇｆ 既設架空地線 Ｇｎ 新設架空地線 Ｐ 電柱 Ｒ 延線ロープ Ｓｄ 引下げ部 Ｓｕ 立上げ部 Ｗ ウインチ 1 High altitude wire drawing machine 2 Clamping means A 1st work area B 2nd work area C Bypass wire Gc Ground wire cap Gf Existing overhead ground wire Gn New overhead ground wire P Power pole R Extended wire rope Sd Pulling down section Su Startup section W winch
Claims (10)
端側に第２作業場をそれぞれ設け、これらの各作業場に
おいて線状体の繰り出しや巻取りを行いつつ新線の延線
や旧線の撤去を行う延線工法において、挟持間隙が弾性
的に可変となる挟持手段を線状体の制動や強制送出のた
めに少なくも一対備えてなる高所延線機を第１作業場に
隣接の電柱又は鉄塔上に設置し、この高所延線機にて線
状体を制動したり強制送出することにより第１作業場に
おける立上げ部や引下げ部を無張力状態として作業を行
うようにしたことを特徴とする延線工法。1. A first work area is provided on one end side of a wire drawing work section and a second work area is provided on the other end side of the wire drawing work section. In the wire-drawing method for removing the old wire, a high-place wire drawing machine equipped with at least one pair of holding means for elastically varying the holding gap for braking or forcibly feeding the linear body is provided at the first work site. Installed on an adjacent utility pole or tower, and use the wire drawing machine at this high place to brake or forcibly discharge the linear body so that the rising part and the pulling down part in the first work area are tensionless The wire-drawing method characterized in that
第２の高所延線機を設置するようにし、この第２の高所
延線機にて線状体を制動したり強制送出することにより
第２作業場における引下げ部や立上げ部も無張力状態と
するようにした請求項１に記載の延線工法。2. A second high-altitude wire drawing machine is also installed on an electric pole or a steel tower adjacent to the second work site, and the second high-altitude wire drawing machine brakes or forces the linear body. The wire-drawing method according to claim 1, wherein the pulling-down portion and the rising portion in the second work place are also brought into a tensionless state by sending out.
されている高所延線機を用いる請求項１又は請求項２の
何れかに記載の延線工法。3. The wire drawing method according to claim 1 or 2, wherein a high-place wire drawing machine in which the holding means is formed of an airtight hollow rubber roller is used.
を線状体の制動や強制送出のために少なくも一対備えて
なる高所延線機を用いる既設架空地線の撤去のための延
線工法であって、撤去作業区間の一端側の第１作業場に
隣接の電柱の地線キャップに上記高所延線機を地線キャ
ップの上端から所定高さだけ突出するように取り付ける
と共に、撤去作業区間の既設架空地線の各端に延線ロー
プを接続し、そして高所延線機及び撤去作業区間の他端
側の第２作業場に設置のウインチにて両端の延線ロープ
を介し撤去作業区間の既設架空地線を所定の張力条件で
張り上げ、それからこの張り上げた状態を保ちつつ既設
架空地線を高所延線機にて第１作業場に向けて強制送出
することにより第１作業場における引下げ部を無張力状
態として既設架空地線の回収を行うようにしたことを特
徴とする延線工法。4. For removing an existing overhead ground wire using an aerial wire extension machine, which has at least one pair of clamping means for elastically varying the clamping gap for braking or forcibly delivering the linear body. It is a wire-drawing method, and while attaching the above-mentioned high-place wire-drawing machine to the ground wire cap of the telephone pole adjacent to the first work site on one end side of the removal work section so as to project from the upper end of the ground wire cap by a predetermined height, Connect the extension rope to each end of the existing overhead ground wire in the removal work section, and use the extension machine at a high place and the winch installed at the second work site on the other end side of the removal work section through the extension rope at both ends. The first work site by pulling up the existing overhead ground wire in the removal work section under a predetermined tension condition, and then forcibly sending the existing overhead ground wire toward the first work place with a wire drawing machine at high altitude while maintaining this tensioned state. Existing aerial land with the pull-down part at no tension A wire drawing method characterized in that the wire is collected.
ープに代えて新設架空地線を接続し、既設架空地線の撤
去と同時に新設架空地線の延線も行うようにした請求項
４に記載の延線工法。5. A new overhead ground wire is connected to the end of the existing overhead ground wire on the side of the second work site in place of the extension rope, and the extension of the existing overhead ground wire is performed simultaneously with the removal of the existing overhead ground wire. The wire drawing method according to claim 4.
延線機を設置するようにし、この第２の高所延線機と第
１作業場側の第１の高所延線機とにより既設架空地線の
張上げ及び回収の際の張上げ状態維持を行うことにより
第２作業場における立上げ部も無張力状態とするように
した請求項４又は請求項５の何れかに記載の延線工法。6. A second high-altitude wire drawing machine is also installed on a utility pole adjacent to the second work area, and the second high-area wire drawing machine and the first high-area wire extension on the side of the first work area. The rising part in the second work site is kept tensionless by raising the existing overhead ground wire by a machine and maintaining the raised state at the time of recovery. Wire drawing method.
されている高所延線機を用いる請求項４〜請求項６の何
れかに記載の延線工法。7. The wire drawing method according to any one of claims 4 to 6, wherein a high place wire drawing machine in which the holding means is formed of an airtight hollow rubber roller is used.
イパス線を用いるようにし且つ、挟持間隙が弾性的に可
変となる挟持手段を線状体の制動や強制送出のために少
なくも一対備えてなる高所延線機を用いてバイパス線の
延線及び回収を行なうようにしてなる無停電張替えの延
線工法であって、張替え作業区間の一端の第１作業場に
隣接の電柱の中間高さ位置に上記高所延線機を取り付
け、バイパス線の延線の際には、バイパス線及びこれに
接続された延線ロープからなる線状体に高所延線機にて
制動を掛けることにより第１作業場における立上げ部を
無張力状態として延線を行い、バイパス線の回収の際に
は、前記線状体を高所延線機にて第１作業場に向けて強
制送出することにより第１作業場における引下げ部を無
張力状態としてバイパス線の回収を行うようにしたこと
を特徴とする延線工法。8. A bypass line is used to replace the existing line without interruption, and at least one pair of holding means for elastically varying the holding gap is provided for braking or forcing the linear body. It is an uninterruptible re-rolling wire extension method in which the bypass wire is extended and recovered by using a high-altitude wire extension machine provided in the middle of an electric pole adjacent to the first work area at one end of the re-installation work section. The above-mentioned drawing machine at height is installed at the height position, and when the bypass wire is drawn, the linear body consisting of the bypass wire and the drawing rope connected to this bypass machine is braked by the drawing machine at height. As a result, the rising portion in the first working place is drawn without tension, and when the bypass wire is collected, the linear body is forcibly sent to the first working place by the wire drawing machine at a high place. The pull-down part in the 1st workplace is set to the tension-free state and the A wire-drawing method characterized in that the wire is collected.
接の電柱にも第２の高所延線機を設置するようにし、バ
イパス線の延線の際には、線状体を第２の高所延線機に
て第２作業場に向けて強制送出することにより第２作業
場における引下げ部も無張力状態として延線を行い、バ
イパス線の回収の際には、線状体に第２の高所延線機に
て制動を掛けることにより第２作業場における立上げ部
も無張力状態としてバイパス線の回収を行うようにした
請求項８に記載の延線工法。9. A second high-altitude wire drawing machine is installed also on a utility pole adjacent to the second work area at the other end of the re-installation work section, and when the bypass wire is drawn, the linear body is first The pulling part in the second work place is also drawn in a tensionless state by forcibly sending it to the second work place with the wire drawing machine at 2 high places, and when the bypass wire is collected, The wire drawing method according to claim 8, wherein the bypass wire is recovered by applying a braking force to the wire drawing machine at height 2 so that the rising portion in the second work area is also in a tension-free state.
成されている高所延線機を用いる請求項９又は請求項１
０の何れかに記載の延線工法。10. A high-place wire drawing machine, in which the holding means is formed of an airtight hollow rubber roller, is used.
The wire drawing method described in any one of 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12311893A JPH06315214A (en) | 1993-04-28 | 1993-04-28 | Wire stringing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12311893A JPH06315214A (en) | 1993-04-28 | 1993-04-28 | Wire stringing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06315214A true JPH06315214A (en) | 1994-11-08 |
Family
ID=14852632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12311893A Withdrawn JPH06315214A (en) | 1993-04-28 | 1993-04-28 | Wire stringing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06315214A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169638A (en) * | 1994-12-16 | 1996-07-02 | Toa Hatsudouki Kk | Method for keeping constant tension of winder for transmission line erection |
| KR100404139B1 (en) * | 2001-12-14 | 2003-11-05 | 한국전력공사 | Device for installing ground wire on the hot line |
| JP2012249437A (en) * | 2011-05-27 | 2012-12-13 | Chugoku Electric Power Co Inc:The | Power line extending method |
-
1993
- 1993-04-28 JP JP12311893A patent/JPH06315214A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169638A (en) * | 1994-12-16 | 1996-07-02 | Toa Hatsudouki Kk | Method for keeping constant tension of winder for transmission line erection |
| KR100404139B1 (en) * | 2001-12-14 | 2003-11-05 | 한국전력공사 | Device for installing ground wire on the hot line |
| JP2012249437A (en) * | 2011-05-27 | 2012-12-13 | Chugoku Electric Power Co Inc:The | Power line extending method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000704 |