JPS592519A - How to extend electric wires across rivers or seas, etc. - Google Patents
How to extend electric wires across rivers or seas, etc.Info
- Publication number
- JPS592519A JPS592519A JP57110171A JP11017182A JPS592519A JP S592519 A JPS592519 A JP S592519A JP 57110171 A JP57110171 A JP 57110171A JP 11017182 A JP11017182 A JP 11017182A JP S592519 A JPS592519 A JP S592519A
- Authority
- JP
- Japan
- Prior art keywords
- rope
- rivers
- seas
- electric wires
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002982 water resistant material Substances 0.000 description 1
- 238000004804 winding Methods 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】
本発明は、河川、海上横断部等の電線、ケーブル等の延
線方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for extending electric wires, cables, etc. across rivers, ocean crossings, etc.
河川等を横断する架空送電線の鉄塔間を最初に連絡スる
ロープは、従来ヘリコプタ−および小型船舶により対岸
へ渡していた。Conventionally, the first rope connecting the towers of an overhead power transmission line that crosses a river or the like has been carried to the opposite shore by helicopter or small boat.
しかしこの場合、水中に浸ったロープが水中に沈んで吸
水し、ロープの重量が増すだめ、ヘリコプタ−１船舶に
おいても強力なけん引力を必要とした。またロープ自身
も吸水するだめに固有重量が増すためロープの太さを大
きくする必要があり、これにより、ロープ重量が増し、
けん引の増大につらなった。However, in this case, the rope immersed in the water sinks and absorbs water, increasing the weight of the rope, which requires a strong traction force even in the helicopter-1 vessel. In addition, as the rope itself absorbs water, its specific weight increases, so it is necessary to increase the thickness of the rope, which increases the weight of the rope.
This resulted in an increase in towing.
さらにロープの太さが増すことによシ、受圧面積が増し
、水の流速に対して受圧力の増大があり、けん引が大き
くなる欠点もあった。Furthermore, as the thickness of the rope increases, the pressure-receiving area increases, and the pressure-receiving force increases with respect to the water flow velocity, which also has the disadvantage of increasing traction.
その他従来例ではロープが水面下へ沈んでしまうため、
この防止方法としてロープの長さ方向に等間隔に「ブイ
」を取付けて、沈み防止を計る必要がある上、水中に沈
むことにより船舶の航行時に発見することができず、ロ
ープがスクリューにからむ事故を惹起するなど数多くの
問題があった。In other conventional cases, the rope sinks below the water surface,
To prevent this, it is necessary to install ``buoys'' at equal intervals along the length of the rope to prevent it from sinking.In addition, if the rope sinks in the water, it cannot be found when the ship is sailing, and the rope becomes entangled with the propeller. There were many problems, including accidents.
本発明の目的は、前記した従来技術の欠点を解消し、電
線工法の経済性と省力化を計ることができる新規な延線
方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a novel wire extending method that eliminates the drawbacks of the prior art described above and can improve the economic efficiency and labor saving of the electric wire construction method.
本発明の要旨は、最初に鉄塔間に連絡する１番ロープと
して、耐水性の材質でかつ合成比重が１以下で水に浮く
ロープを用いたことにある。The gist of the present invention is to use a rope that is made of a water-resistant material and has a composite specific gravity of 1 or less and floats on water as the first rope that connects the steel towers.
しかしてこのようなロープ材料としては、ポリプロピレ
ンのテープをロープ状に撚り合わせたものが好都合であ
るが、勿論これに限る訳ではない。However, as such a rope material, polypropylene tape twisted into a rope shape is convenient, but of course it is not limited to this.
第１および２図は本発明に係る延線方法の説明図であり
、例えば河川１０をはさんで鉄塔Ａ、Ｂが建設され、こ
の鉄塔Ａ、Ｂ間に電線を架線するのである。FIGS. 1 and 2 are explanatory diagrams of a wire extension method according to the present invention. For example, steel towers A and B are constructed across a river 10, and an electric wire is installed between the steel towers A and B.
鉄塔Ａ、Ｂにはそれぞれ金車１，１が取付けられ、前記
の如く例えばポリプロピレンロープ２が、金車１，１を
通して河川１０上を舟等で引かれて横断せしめられる。Metal wheels 1, 1 are attached to the steel towers A, B, respectively, and as described above, for example, a polypropylene rope 2 is pulled across the river 10 by a boat or the like through the metal wheels 1, 1.
５はロープ２を巻き取るリールである。ロープ２の後端
には連結具６を介してメツセンジャーワイヤ４が連結さ
れている。5 is a reel for winding up the rope 2. A messenger wire 4 is connected to the rear end of the rope 2 via a connector 6.
この状態からロープ２を巻き取り張り上げて、ロープ２
をメツセンジャーワイヤ４に張り替えた状態を示したの
が第２図である。あとは通常の方法で電線の延線ができ
る。From this state, wind up the rope 2 and pull it up.
FIG. 2 shows the state in which the mesh wire 4 has been replaced. After that, you can extend the wire using the normal method.
本発明によれば延線時の第１０−プがなんの苦もなく河
川等横断でき、その簡便省力化の意義は大きい。According to the present invention, the 10th loop during line extension can cross rivers, etc. without any difficulty, and its simplicity and labor-saving are of great significance.
第１および２図は本発明に係る延線方法の説明図である
。
２：水に浮くロープ、
４：メツセンジャワイヤ。1 and 2 are explanatory diagrams of the wire extending method according to the present invention. 2: Rope that floats on water, 4: Metsusenja wire.
Claims (1)
しめて河川あるいは海上の対岸鉄塔間に張り渡すことを
特徴とする河川あるいは海上等の横断部の電線延線方法
。1. A method of extending electric wire across a river or sea, which is characterized by making a rope configured to float on water float across and extending it between steel towers on the opposite shore of a river or sea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57110171A JPS592519A (en) | 1982-06-25 | 1982-06-25 | How to extend electric wires across rivers or seas, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57110171A JPS592519A (en) | 1982-06-25 | 1982-06-25 | How to extend electric wires across rivers or seas, etc. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS592519A true JPS592519A (en) | 1984-01-09 |
Family
ID=14528844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57110171A Pending JPS592519A (en) | 1982-06-25 | 1982-06-25 | How to extend electric wires across rivers or seas, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592519A (en) |
-
1982
- 1982-06-25 JP JP57110171A patent/JPS592519A/en active Pending
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