JPH0799893B2 - Power line replacement method - Google Patents
Power line replacement methodInfo
- Publication number
- JPH0799893B2 JPH0799893B2 JP2725086A JP2725086A JPH0799893B2 JP H0799893 B2 JPH0799893 B2 JP H0799893B2 JP 2725086 A JP2725086 A JP 2725086A JP 2725086 A JP2725086 A JP 2725086A JP H0799893 B2 JPH0799893 B2 JP H0799893B2
- Authority
- JP
- Japan
- Prior art keywords
- self
- propelled machine
- transmission line
- connecting portion
- power transmission
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000010276 construction Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は鉄塔間等に架設される送電線の張替工法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a method for replacing a transmission line installed between steel towers.
従来、送電線用鉄塔間に架設される送電線の張替えは、
モータにより駆動される自走機が一方の鉄塔から他方の
鉄塔へ鉄塔間に架設された既設送電線上を、新たに架設
される送電線を牽引しながら走行して、該送電線を鉄塔
間に張力をもたせて架け渡すことで行われていた。Conventionally, the replacement of the transmission line installed between transmission towers is
A self-propelled machine driven by a motor runs on an existing transmission line installed between steel towers from one steel tower to the other steel tower while pulling a newly installed power transmission line to connect the power transmission line between the steel towers. It was done by applying tension and bridging it.
上述した従来の送電線の張替工法において、特に海峡等
に架設される送電線はグリース，油等を塗布して防錆処
理を施している上、その径間も長く、自走機はモータに
より駆動される走行ローラを介して走行しているため、
自走機が送電線の上り勾配を走行する際、前記走行ロー
ラがスリップしやすく、大きな牽引力を発生しにくいと
いう問題点を有していた。また、途中で自走機の走行が
停止することがあり、その際、作業者が高電圧の掛かる
鉄塔上にのぼり、また送電線に宙乗りして自走機を元の
位置まで引戻したり、或いは次の位置まで引き寄せたり
していた。そのため、鉄塔上や送電線より誤って作業者
が転落する等の事故が発生するなど安全性の面で問題が
あると共に、作業時間のロスが大きい等の問題点も有し
ていた。In the above-mentioned conventional power line replacement method, in particular, the power lines installed in the straits are coated with grease, oil, etc. for rust prevention, and the span is long, and the self-propelled machine is a motor. Because it is traveling through the traveling roller driven by
When the self-propelled machine travels on the uphill of the power transmission line, there is a problem that the traveling rollers are likely to slip and a large traction force is hard to be generated. In addition, the traveling of the self-propelled machine may be stopped on the way, and at that time, the worker climbs on a steel tower where high voltage is applied, or he / she rides on the power transmission line to pull the self-propelled machine back to the original position, or I was pulling to the next position. Therefore, there is a problem in safety such as an accident such as a worker accidentally falling on a tower or a power transmission line, and there is a problem that a loss of working time is large.
本発明は上述の問題点に鑑み、鉄塔径間での作業員の干
渉を必要とせず、自走機が送電線上でスリップ或いは停
止する等のトラブルを発生することなく、常に安全を維
持しながら作業時間のロス等がない安定した送電線の張
替えができる経済性の高い送電線の張替工法を提供しよ
うとするものである。In view of the above problems, the present invention does not require worker interference between steel tower diameters, does not cause trouble such as a self-propelled machine slipping or stopping on the power transmission line, and always maintains safety. The present invention is intended to provide a highly economical method of replacing a transmission line, which enables stable replacement of the transmission line without loss of work time.
本発明は上述の目的を達成するため、二鉄塔間に架設し
た送電線Ｒ上をモータ16を駆動源として駆動される自走
機が走行し、前記送電線Ｒを張替える送電線の張替工法
において、第１の連結部３を前部に設けた第１の自走機
Ａを一方の前記鉄塔より新設する送電線Ｒ′を牽引して
走行させ、前記第１の連結部３に係合して連結する第２
の連結部４の後部に設け且つ前記モータ16の正転・逆転
を制御する制御回路を設けた第２の自走機Ｂを他方の前
記鉄塔より逆走行させ、２基の前記鉄塔の中間点におい
て、前記第１の自走機Ａの駆動を停止させることなく、
前記第１の連結部３と前記第２の連結部４とを自動連結
させ、この自動連結に連動する連結部材による前記制御
回路の自動制御動作により前記第２の自走機Ｂのモータ
16の回転を逆転させ、前記第１の自走機Ａと前記第２の
自走機Ｂとを一体に同一方向に新設送電線Ｒ′を牽引し
て走行させたものである。In order to achieve the above-mentioned object, the present invention runs a self-propelled machine driven by a motor 16 as a drive source on a power transmission line R installed between two steel towers, and repowers the power transmission line R. In the construction method, the first self-propelled machine A provided with the first connecting portion 3 at the front part is pulled by the power transmission line R ′ newly installed from one of the steel towers to run, and the first connecting portion 3 is engaged with the first connecting portion 3. Second to join together
The second self-propelled machine B, which is provided at the rear part of the connecting portion 4 and has a control circuit for controlling the forward / reverse rotation of the motor 16, is caused to run in the reverse direction from the other tower, and the intermediate point between the two towers. In, without stopping the drive of the first self-propelled machine A,
The first connecting portion 3 and the second connecting portion 4 are automatically connected, and the motor of the second self-propelled machine B is operated by the automatic control operation of the control circuit by the connecting member interlocking with the automatic connection.
The rotation of 16 is reversed, and the first self-propelled machine A and the second self-propelled machine B are integrally run by pulling a new transmission line R'in the same direction.
（作用） 本発明によれば、二鉄塔の一方より第１の自走機が走行
すると共に、他方より第２の自走機が走行して、これら
を二鉄塔間の中間点で第１及び第２の連結部により連結
し、連結された二台の自走機は一体となって同一方向に
走行する。従って、送電線は第１及び第２の自走機によ
って大きな牽引力で牽引される。(Operation) According to the present invention, the first self-propelled machine travels from one of the two steel towers, and the second self-propelled machine travels from the other of the two steel towers. The two self-propelled machines that are connected by the second connecting portion and are connected together travel in the same direction. Therefore, the power transmission line is towed by the first and second self-propelled aircraft with a large traction force.
本発明の一実施例を第１図乃至第６図に基づいて説明す
る。即ち、第１の自走機Ａは走行部１と、ケージ２と、
第１の連結部３とから成り、第２の自走機Ｂは走行部１
と、ケージ２と、第２の連結部４とから成っている。An embodiment of the present invention will be described with reference to FIGS. That is, the first self-propelled machine A includes the traveling unit 1, the cage 2,
The second self-propelled machine B is composed of the first connecting portion 3 and the traveling portion 1
And a cage 2 and a second connecting portion 4.
前記走行部１は前後１対のローラ７用車輪５を長方形状
を呈する２枚の側板６間に軸着し、該ローラ７用車輪５
に芯入りの硬質ゴム等より成るローラ７を掛着したもの
である。８は１対のアームであり、該アーム８はその下
端を前記ケージ２の両側上部中央に連結ピン（図示せ
ず）にて枢着されると共に、アーム８の上端部が前記両
側板６の中央部にステー９により支承され、前記走行部
１とケージ２とは両持吊下式に連結されている。そし
て、前記第１及び第２の自走機A,Bはバランス良く安定
して送電線Ｒ上に装架されている。発動発電機10はケー
ジ２に載置され捩子止めされている。11は走行部11の側
板６に２本のアーム12により固着された金属製の円筒で
あり、該円筒11内にロッド13が摺動自在に挿入され、該
ロッド13の外側端には送電線Ｒ′を牽引する牽引用金具
14が固着されている。また、15は電装ボックスであり、
16はローラ７用車輪５を駆動するモータである。The traveling unit 1 axially mounts a pair of front and rear wheels 5 for the rollers 7 between two side plates 6 having a rectangular shape.
A roller 7 made of hard rubber or the like with a core is hung on. Reference numeral 8 denotes a pair of arms. The lower ends of the arms 8 are pivotally attached to the upper center of both sides of the cage 2 by connecting pins (not shown), and the upper ends of the arms 8 are attached to the side plates 6. The traveling portion 1 and the cage 2 are supported by a stay 9 at the center, and are connected in a two-sided hanging manner. The first and second self-propelled machines A and B are mounted on the power transmission line R in a well-balanced and stable manner. The engine generator 10 is mounted on the cage 2 and screwed. Reference numeral 11 denotes a metal cylinder fixed to the side plate 6 of the traveling portion 11 by two arms 12. A rod 13 is slidably inserted into the cylinder 11, and a transmission line is provided at an outer end of the rod 13. Metal fitting for towing R '
14 is stuck. Also, 15 is an electrical box,
Reference numeral 16 is a motor for driving the wheels 5 for the rollers 7.
前記第１の連結部３はコ字状の主杆3aと、該主杆3aの一
端に固着された係止片3bと、同主杆3aの他端に軸着され
た作動杆3cとから成っている。該作動杆3cは主杆3aの他
端寄りに設けられた突起3dに一端を取付けたスプリング
3eにより前記係止片3bに付勢している。更に、前記主杆
3aは２本の支持杆3fを介してコ字状のブラケット17に取
付けられ、該ブラケット17は前記２枚の側板６の夫々前
部に捩子止めされている。尚、3gは前記支持杆3fの周壁
に捲回されたスプリングであり、前記第１の連結部３に
加わる衝撃を和らげるものである。The first connecting portion 3 comprises a U-shaped main rod 3a, a locking piece 3b fixed to one end of the main rod 3a, and an operating rod 3c axially attached to the other end of the main rod 3a. Made of The operating rod 3c is a spring having one end attached to a projection 3d provided near the other end of the main rod 3a.
The locking piece 3b is biased by 3e. Further, the main rod
3a is attached to a U-shaped bracket 17 via two supporting rods 3f, and the bracket 17 is screwed to the front portion of each of the two side plates 6. In addition, 3g is a spring wound around the peripheral wall of the support rod 3f, and softens the impact applied to the first connecting portion 3.
また、前記第２の連結部４は棒体を長方形に屈曲し無端
状に形成した連結杆4aを有し、該連結杆4aにブラケット
17に突設した孔17aに摺動自在に挿通された２本の支持
杆4bを介して前記ブラケット17の内側に位置するＬ字形
の連動板4cに固着されている。前記ブラケット17は２枚
の側板６に捩子止めされ、前記連動板4cは後述する切換
スイッチの検知部18に連動されている。更に、前記支持
杆4bのブラケット17と連結杆4aとの間にはスプリング4d
が捲回されている。Further, the second connecting portion 4 has a connecting rod 4a formed by bending a rod into a rectangular shape and forming an endless shape, and the connecting rod 4a has a bracket.
It is fixed to an L-shaped interlocking plate 4c located inside the bracket 17 through two supporting rods 4b slidably inserted in a hole 17a protrudingly provided in the bracket 17. The bracket 17 is screwed to the two side plates 6, and the interlocking plate 4c is interlocked with the detecting portion 18 of the changeover switch described later. Further, a spring 4d is provided between the bracket 17 of the support rod 4b and the connecting rod 4a.
Is wound.
更に、第２の自走機Ｂに設けられた駆動モータ16の制御
回路は第３図に示す様に、第１の電気回路19と第２の電
気回路20とから成っており、前記第１の電気回路19は交
流電源21と、スイッチ22と、一定の電圧が加わる励磁巻
線23と、これらを順次接続するリード線24とから成って
いる。また、前記第２の電気回路20は交流電源21と、ス
イッチ22と、単極双投型の切換スイッチ25及び26と、制
御巻線27と、コンデンサ28（電圧の位相を90゜変化させ
る）と、これらを順次接続するリード線24とから成って
いる。更に、前記切換スイッチ25は、スイッチ22を介し
て交流電源21に接続された接点25aと制御巻線27に接続
された接点25bと、コンデンサ28を介して制御巻線27に
接続された接点25cとから成り、前記切換スイッチ26は
交流電源21を接続された接点26aと、コンデンサ28を介
して制御巻線27に接続された接点26bと、制御巻線27に
接続された接点26cとから成っており、切換スイッチ25
と26とは連動される。尚、29は駆動モータ16の回転子で
ある。Further, the control circuit of the drive motor 16 provided in the second self-propelled machine B comprises a first electric circuit 19 and a second electric circuit 20, as shown in FIG. The electric circuit 19 includes an AC power supply 21, a switch 22, an excitation winding 23 to which a constant voltage is applied, and a lead wire 24 sequentially connecting these. The second electric circuit 20 includes an AC power supply 21, a switch 22, single-pole / double-throw changeover switches 25 and 26, a control winding 27, and a capacitor 28 (changing the voltage phase by 90 °). And a lead wire 24 for connecting these in sequence. Further, the changeover switch 25 includes a contact 25a connected to the AC power source 21 via the switch 22, a contact 25b connected to the control winding 27, and a contact 25c connected to the control winding 27 via the capacitor 28. The changeover switch 26 comprises a contact 26a connected to the AC power supply 21, a contact 26b connected to the control winding 27 via a capacitor 28, and a contact 26c connected to the control winding 27. Changeover switch 25
And 26 are interlocked. Incidentally, 29 is a rotor of the drive motor 16.
次に、第１の自走機Ａ及び第２の自走機Ｂによる送電線
の張替工法を説明する。即ち、支点、例えば鉄塔間に架
設された送電線Ｒ上を、一方の鉄塔より送電線Ｒ′を牽
引する第１の自走機Ａを走行させると共に、他方の鉄塔
より第２の自走機Ｂを走行する。従って、前記自走機A,
Bの第１及び第２の連結部3,4は第４図に示す如く接近
し、第５図に示す様に第２の連結部４の連結杆4aが第１
の連結部３の作動杆3cを押圧すると共に、該作動杆3cは
反時計回りに回転を行なう。そして、連結杆4aが第１の
連結部３の主杆3aの内側に挿入すると第６図に示す様に
作動杆3cはスプリング3eにより時計回りに回転し、係止
片3bを付勢することで主杆3aの開口部が塞がれ、第１の
連結部３と第２の連結部４とが連結され、更に、前記連
結杆4aは主杆3aに押圧される。しかる後、前記連結杆4a
は支持杆4b及び連動板4cを介して検知部18を押圧し、該
検知部18により切換スイッチ25の接点25aは接点25bから
接点25cに、切換スイッチ26の接点26aは接点26bから接
点26cに接続が夫々切換えられ第２の自走機のモータ16
は逆転する。従って、第２の自走機Ｂは第１の自走機Ａ
に連結され第１及び第２の自走機A,Bは送電線Ｒ′を牽
引して送電線Ｒ上を走行し鉄塔間に前記送電線Ｒ′を架
設する。Next, a method for replacing the transmission line with the first self-propelled machine A and the second self-propelled machine B will be described. That is, the first self-propelled machine A that pulls the transmission line R'from one steel tower is made to travel on a fulcrum, for example, the power transmission line R installed between the steel towers, and the second self-propelled machine is made to travel from the other steel tower. Drive on B. Therefore, the self-propelled machine A,
The first and second connecting portions 3 and 4 of B come close to each other as shown in FIG. 4, and the connecting rod 4a of the second connecting portion 4 is the first as shown in FIG.
While pressing the operating rod 3c of the connecting portion 3, the operating rod 3c rotates counterclockwise. When the connecting rod 4a is inserted inside the main rod 3a of the first connecting portion 3, the operating rod 3c is rotated clockwise by the spring 3e to urge the locking piece 3b as shown in FIG. Then, the opening of the main rod 3a is closed, the first connecting portion 3 and the second connecting portion 4 are connected, and the connecting rod 4a is pressed against the main rod 3a. After that, the connecting rod 4a
Presses the detection unit 18 via the support rod 4b and the interlocking plate 4c, the contact 25a of the changeover switch 25 from the contact 25b to the contact 25c by the detection unit 18, the contact 26a of the changeover switch 26 from the contact 26b to the contact 26c. The connection is switched respectively and the motor 16 of the second self-propelled machine is changed.
Is reversed. Therefore, the second self-propelled machine B is the first self-propelled machine A
The first and second self-propelled machines A and B connected to each other pull the power transmission line R ′, travel on the power transmission line R, and install the power transmission line R ′ between the steel towers.
本発明は上述の如く、２台の自走機A,Bを使って送電線
Ｒ′を牽引するので安定した送電線Ｒの張替えができる
と共に、既存の自走機を改良して使用することもできる
ので設備コストが安価にできる。As described above, according to the present invention, since the power transmission line R'is towed by using the two self-propelled machines A and B, it is possible to stably replace the power transmission line R and improve the existing self-propelled machine. Since it can also be done, equipment costs can be reduced.
以上、説明した様に本発明によれば、二鉄塔間に架設し
た送電線上をモータを駆動源として駆動される自走機が
走行し、前記送電線を張替える送電線の張替工法におい
て、第１の連結部を設けた第１の自走機を前記一方の鉄
塔より送電線を牽引して走行し、前記第１の連結部に対
応する第２の連結部を設け且つ前記モータの正転・逆転
を制御する制御回路を設けた第２の自走機を前記他方の
鉄塔より走行し、前記二鉄塔の中間点にて、前記第１の
自走機の駆動を停止させることなく、前記第１の連結部
と前記第２の連結部とを連結し、該連結時において前記
第２の自走機のモータを逆転し、前記第１の自走機と前
記第２の自走機とを同一方向に走行させたので、重量の
ある新設送電線は第１及び第２の自走機による大きな牽
引力で牽引される。よって、自走機が送電線上でスリッ
プする等のトラブルにより自走機の走行速度が落ちるこ
となく或いは走行が停止することもなく、着実に能率的
な送電線の張替え作業ができる。従って、作業時間のロ
スが減少し作業能率が向上できると共に、第１の自走機
は比較的小さい動力のもので済み、第２の自走機として
も既存の第１の自走機を改造して利用できる等、設備コ
ストが安価に抑えられるので、経済性が大であり、ま
た、鉄等径間において作業員の干渉を必要とすることな
く、着実に工事が行われるので、工事の安全性が向上で
きる。As described above, according to the present invention, a self-propelled machine driven by a motor as a drive source travels on a power transmission line installed between two steel towers, and in a power line re-construction method for re-powering the power line, A first self-propelled machine provided with a first connecting portion is run by pulling a power transmission line from the one steel tower, a second connecting portion corresponding to the first connecting portion is provided, and a positive motor of the motor is provided. A second self-propelled machine provided with a control circuit for controlling rotation / reverse rotation travels from the other tower, without stopping the driving of the first self-propelled machine at an intermediate point of the two steel towers. The first connecting portion and the second connecting portion are connected to each other, the motor of the second self-propelled machine is reversely rotated at the time of the connection, and the first self-propelled machine and the second self-propelled machine are connected. Since the and were run in the same direction, the heavy new transmission line is towed by a large traction force by the first and second self-propelled aircraft. Therefore, the traveling speed of the self-propelled machine does not slow down or the traveling does not stop due to a trouble such as the self-propelled machine slipping on the power transmission line, and steadily and efficiently the work of replacing the power transmission line can be performed. Therefore, the loss of work time can be reduced and the work efficiency can be improved, and the first self-propelled machine only needs relatively small power, and the existing first self-propelled machine can be modified as the second self-propelled machine. Since it is possible to use it for a long time, the cost of the equipment can be kept low, so it is economically efficient, and since the work is steadily performed without the need for operator intervention between the iron and other diameters, The safety can be improved.
図面は本発明に係る送電線の張替工法の一実施例を示す
もので、第１図は第１及び第２の自走機の正面図、第２
図は第１及び第２の自走機の一部省略平面図、第３図は
モータの制御回路図、第４図乃至第６図は第１及び第２
の連結部が連結する過程を示す説明図である。 図中、 ３……第１の連結部、４……第２の連結部 16……モータ、Ａ……第１の自走機 Ｂ……第２の自走機、R,R′……送電線The drawings show an embodiment of a method for re-installing a power transmission line according to the present invention. FIG. 1 is a front view of first and second self-propelled aircraft, and FIG.
FIG. 1 is a partially omitted plan view of first and second self-propelled machines, FIG. 3 is a motor control circuit diagram, and FIGS. 4 to 6 are first and second plan views.
It is explanatory drawing which shows the process in which the connection part of this connects. In the figure, 3 ... First connecting portion, 4 ... Second connecting portion 16 ... Motor, A ... First self-propelled machine B ... Second self-propelled machine, R, R '... power line
Claims (1)
モータを駆動源として駆動される自走機が走行し、前記
送電線を張替える送電線の張替工法において、第１の連
結部を前部に設けた第１の自走機を一方の前記鉄塔上よ
り送電線を牽引して走行させ、前記第１の連結部に係合
して連結する第２の連結部を後部に設け且つ前記モータ
の正転・逆転を制御する制御回路を設けた第２の自走機
を他方の前記鉄塔上より逆走行させ、２基の前記鉄塔の
中間点において、前記第１の自走機の駆動を停止させる
ことなく、前記第１の連結部と前記第２の連結部とを自
動連結させ、該自動連結に連動する連結部材による前記
制御回路の自動制御動作により前記第２の自走機のモー
タの回転を逆転させ、前記第１の自走機と前記第２の自
走機と一体に同一方向に牽引走行させることを特徴とす
る送電線の張替工法。According to a first aspect of the present invention, there is provided a power transmission line re-construction method in which a self-propelled machine driven by a motor as a drive source travels on a power transmission line that is installed between two steel towers, and the power transmission line is replaced. A first self-propelled machine having a connecting portion provided at a front portion is run by pulling a power transmission line from one of the steel towers, and a second connecting portion for engaging and connecting the first connecting portion with a rear portion is provided. A second self-propelled machine provided with a control circuit for controlling forward / reverse rotation of the motor is reversely traveled from above the other steel tower, and at the intermediate point of the two steel towers, the first self-propelled machine is installed. The first connecting portion and the second connecting portion are automatically connected to each other without stopping the drive of the traveling machine, and the second connecting portion is automatically controlled by the connecting member that is interlocked with the automatic connecting operation. The rotation of the motor of the self-propelled machine is reversed, and the first self-propelled machine and the second self-propelled machine are integrally formed with each other. Chokawa method of the transmission line, characterized in that to towing countercurrent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2725086A JPH0799893B2 (en) | 1986-02-10 | 1986-02-10 | Power line replacement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2725086A JPH0799893B2 (en) | 1986-02-10 | 1986-02-10 | Power line replacement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62185506A JPS62185506A (en) | 1987-08-13 |
| JPH0799893B2 true JPH0799893B2 (en) | 1995-10-25 |
Family
ID=12215828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2725086A Expired - Fee Related JPH0799893B2 (en) | 1986-02-10 | 1986-02-10 | Power line replacement method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0799893B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015515250A (en) * | 2012-03-30 | 2015-05-21 | エルファー エルエルシー | A mobile device that is configured to travel and assist on a transmission line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232130B2 (en) * | 1972-05-18 | 1977-08-19 | ||
| JPS59148504A (en) * | 1983-02-10 | 1984-08-25 | 藤井電工株式会社 | Self-propelled wire drawing machine |
-
1986
- 1986-02-10 JP JP2725086A patent/JPH0799893B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62185506A (en) | 1987-08-13 |
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