JPS63245812A - High strength aerial transmission line - Google Patents
High strength aerial transmission lineInfo
- Publication number
- JPS63245812A JPS63245812A JP8046887A JP8046887A JPS63245812A JP S63245812 A JPS63245812 A JP S63245812A JP 8046887 A JP8046887 A JP 8046887A JP 8046887 A JP8046887 A JP 8046887A JP S63245812 A JPS63245812 A JP S63245812A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- wire
- transmission line
- strength
- steel
- 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
- 230000005540 biological transmission Effects 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 32
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 3
- 239000008397 galvanized steel Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Landscapes
- Non-Insulated Conductors (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ＡＣ８Ｒ等の架空送電線、特に着雪地区等気
象条件が激しく高強度を必要とする例えば超高圧架空送
電線に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to AC8R and other overhead power transmission lines, particularly ultra-high voltage overhead power transmission lines that require high strength due to severe weather conditions such as snowy areas. .
（従来技術）
第３図は従来の架空送電線の一例の横断図面である。図
面に示すように、亜鉛メッキ鋼線あるいは亜鉛メッキ特
強鋼線（２１）の複数本を撚合せて成る鋼心（１）の外
周上に硬アルミニウム線あるいはアルミニウム合金線等
のアルミニウム撚線層（２）を設けて構成されている。(Prior Art) FIG. 3 is a cross-sectional view of an example of a conventional overhead power transmission line. As shown in the drawing, an aluminum stranded wire layer such as hard aluminum wire or aluminum alloy wire is placed on the outer periphery of a steel core (1) made by twisting a plurality of galvanized steel wires or galvanized special strength steel wires (21). (2).
（解決しようとする問題点）
山岳地区等の電線着氷雪の激しい地区に架線される架空
送電線はこれらの気象条件に耐えるため、電線の外径を
従来と変えることなく、電線の強度を上げることが要求
される。しかし、第３図に示した従来の架空送電線では
、その強度を上げるには鋼心（１）の素線径を太くシ、
本数を多くする必要があり、必然的に電線外径が大きく
なる。その結果、電線の風圧荷重が増加し、鉄塔の強度
アップを必要とするという問題点がある。(Problem to be solved) In order to withstand these weather conditions, overhead power transmission lines installed in mountainous areas and other areas where wires are subject to heavy ice and snow build up strength without changing the outside diameter of the wire. This is required. However, in the conventional overhead power transmission line shown in Figure 3, in order to increase its strength, the wire diameter of the steel core (1) must be made thicker.
It is necessary to increase the number of wires, which inevitably increases the outer diameter of the wires. As a result, there is a problem in that the wind pressure load on the electric wire increases and the strength of the steel tower needs to be increased.
も長距離延線ができる電線が有利であるが、このために
は長距離延線によるアルミニウム素線のニラキングの低
減対策が必要となってくるが、前記従来の架空送電線で
は長距離延線を行なうとアルミニウム素線のニラキング
が大きくなり、電線振動発生時に疲労破断するおそれが
ある。Although it is advantageous to use electric wires that can be extended over long distances, it is necessary to take measures to reduce sagging of aluminum wires due to long-distance extensions. If this is done, the aluminum strands will suffer from stiffening, which may lead to fatigue fracture when the wire vibrates.
（問題点を解決するための手段）
本発明は上述の問題点を解消した改良された架空送電線
を提供するもので、その特徴は、丸形アルミニウム被覆
鋼線上に成型アルミニウム被覆鋼線の複数本を撚合せて
鋼心とし、該鋼心の外周上にアルミニウム撚線層を設け
て成る架空送電線にある。(Means for Solving the Problems) The present invention provides an improved overhead power transmission line that solves the above-mentioned problems. An overhead power transmission line is comprised of a steel core made by twisting together a steel core, and an aluminum stranded wire layer provided on the outer periphery of the steel core.
第１図は本発明の架空送電線の１具体例の横断面図であ
る。図面に示すように、鋼心（１）は丸形鋼線（１２）
の外周にアルミニウム被覆（１３）を施した丸形アルミ
ニウム被覆鋼線（ＩＩ）を中心とし、その上に扇形又は
角形の成型鋼線（Ｉ５）の外周にアルミニウム被覆（Ｉ
６）を施した成型アルミニウム被覆鋼線（１４）の複数
本を撚合せて構成されている。このような鋼心（１）の
外周上にアルミニウム撚線層（２）を設は断面図である
。本具体例においては、鋼心（１）は第１図と同様であ
るが、その外周上のアルミニウム撚線（２）の内層（２
４）には扇形の成型アルミニウム線を撚合せ、その上に
丸形アルミニウム線を撚合せた外層（２も）を設けたも
のである。この場合、アルミニウム撚線層（２）の内外
層（２６ＬＭ２ａ ）共、成型アルミニウム線で構成し
てもさしつかえない。FIG. 1 is a cross-sectional view of one specific example of the overhead power transmission line of the present invention. As shown in the drawing, the steel core (1) is a round steel wire (12)
The outer periphery of the round aluminum-coated steel wire (II) is covered with aluminum coating (13).
6) is formed by twisting together a plurality of formed aluminum coated steel wires (14). The sectional view shows that an aluminum stranded wire layer (2) is provided on the outer periphery of such a steel core (1). In this example, the steel core (1) is the same as that shown in FIG. 1, but the inner layer (2
In 4), fan-shaped molded aluminum wires are twisted together, and an outer layer (also referred to as 2) made of twisted round aluminum wires is provided thereon. In this case, both the inner and outer layers (26LM2a) of the aluminum twisted wire layer (2) may be made of molded aluminum wire.
（作用）
上述した本発明の架空送電線によれば、鋼心（１）とし
て使用するアルミニウム被覆鋼線は従来の亜鉛メッキ鋼
線と同等以上の強度があり、しかも同一鋼心（１）径の
場合、外装は成型アルミニウム被覆鋼線（１４）で相互
の隙間を埋めているので面積が増加し、強度が向上する
。(Function) According to the above-described overhead power transmission line of the present invention, the aluminum-coated steel wire used as the steel core (1) has a strength equal to or higher than that of a conventional galvanized steel wire, and has the same steel core (1) diameter. In this case, the exterior is filled with mutual gaps with formed aluminum-coated steel wires (14), increasing the area and improving the strength.
又鋼心（１）の表面がなめらかな円形であるので、その
上に撚合されているアルミニウム撚線の各素線について
、延線工事で発生するニラキング量が低減される。In addition, since the surface of the steel core (1) is a smooth circular shape, the amount of cracking that occurs during wire-stretching work is reduced for each strand of aluminum stranded wire twisted thereon.
ルミ−ラム撚線（２）の素線を扇形の成型導体とするこ
とにより、アルミニウム撚線層（２）の全断面積を第１
図の丸線のアルミニウム撚線層の全断面積と同じとした
場合、鋼心（１）径を第１図の場合よりも大きくするこ
とができ、その分より高強度の電線が得られる。さらに
又鋼心（１）の外表面とアルミニウム撚線層（２）の内
周面がいずれもなめら力）な円を形成するので、アルミ
ニウム線の二・ソキング量をよりさらに低減することが
できる。By making the strands of the Lumi-Lamb stranded wire (2) into fan-shaped molded conductors, the total cross-sectional area of the aluminum stranded wire layer (2) is
If the total cross-sectional area of the aluminum stranded wire layer of the round wire shown in the figure is the same, the diameter of the steel core (1) can be made larger than in the case of FIG. 1, and an electric wire with higher strength can be obtained. Furthermore, since the outer surface of the steel core (1) and the inner peripheral surface of the aluminum stranded wire layer (2) both form a circle with smoothing force, it is possible to further reduce the amount of bending of the aluminum wire. can.
（実施例）
アルミニウム撚線層が５４／３．８ｍ■、鋼心が亜鉛メ
ッキ鋼線７ ／３．８ｍ目の断面積ｅｔｏ冒１の従来の
ＡＣ８Ｒと、アルミニウム合金撚線層が５４／３．８■
■、鋼ＩＣ１カ（中心丸形アルミニウム被覆鋼１／４．
０＋ｉｍ、その上ると成型アルミニウム被覆鋼線６本の
断面積６１０ｍ１Ｉｌ！の本発明のＡＣ８Ｒについて、
鋼心の断面積を比較したところ、前者は７９．３８ｍｍ
’ 、後者は９８．９７１１市２で断面積において本発
明品は従来品の１．２倍となり、本発明品では鋼心の強
度が従来品の１．２倍とれる）
（発明の効果）
本発明の架空送電線によれば、従来電線と同一外径でよ
り高強度の電線を実現することができ、しかも延線工事
でのアルミニウム線のニラインク量を低減することがで
き、信頼性が著しく向上する。(Example) The aluminum stranded wire layer is 54/3.8m, the steel core is galvanized steel wire 7/3.8m, and the conventional AC8R has a cross-sectional area of 1, and the aluminum alloy stranded wire layer is 54/3. ．８■
■, 1 steel IC (center round aluminum coated steel 1/4.
0+im, and the cross-sectional area of 6 molded aluminum coated steel wires is 610m1Il! Regarding the AC8R of the present invention,
When comparing the cross-sectional areas of the steel cores, the former is 79.38 mm.
', the latter is 98.9711 city 2, and the cross-sectional area of the product of the present invention is 1.2 times that of the conventional product, and the steel core strength of the product of the present invention is 1.2 times that of the conventional product.) (Effects of the invention) According to the overhead power transmission line of the invention, it is possible to realize a higher-strength electric wire with the same outer diameter as conventional electric wires, and it is also possible to reduce the amount of double ink of aluminum wire during wire extension work, resulting in significantly improved reliability. improves.
第１図及び第２図はいずれも本発明の架空送電線の具体
例の横断面図、第３図は従来の架空送電線の一例の横断
面図である。
１・・・鋼心、ＩＩ・・・丸形アルミニウム被覆鋼線、
Ｉ２・・・成型アルミニウム被覆鋼線、２・・・アルミ
ニウム撚線層、２＾・・・内層撚線、２６・・・外層撚
線。1 and 2 are both cross-sectional views of a specific example of an overhead power transmission line according to the present invention, and FIG. 3 is a cross-sectional view of an example of a conventional overhead power transmission line. 1... Steel core, II... Round aluminum coated steel wire,
I2... Molded aluminum coated steel wire, 2... Aluminum stranded wire layer, 2^... Inner layer stranded wire, 26... Outer layer stranded wire.
Claims (3)
被覆鋼線の複数本を撚合せて鋼心とし、該鋼心の外周上
にアルミニウム撚線層を設けて成ることを特徴とする高
強度架空送電線。(1) High-strength overhead transmission characterized by having a steel core made by twisting a plurality of formed aluminum-coated steel wires on a round aluminum-coated steel wire, and providing an aluminum stranded wire layer on the outer periphery of the steel core. Electrical wire.
ることを特徴とする特許請求の範囲第１項記載の高強度
架空送電線。(2) The high-strength overhead power transmission line according to claim 1, wherein the aluminum wire is a high-strength aluminum alloy wire.
ルミニウム合金線であることを特徴とする特許請求の範
囲第１項記載の高強度架空送電線。(3) The high-strength overhead power transmission line according to claim 1, wherein at least the inner layer of the aluminum stranded wire layer is a fan-shaped aluminum alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8046887A JPS63245812A (en) | 1987-03-31 | 1987-03-31 | High strength aerial transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8046887A JPS63245812A (en) | 1987-03-31 | 1987-03-31 | High strength aerial transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63245812A true JPS63245812A (en) | 1988-10-12 |
Family
ID=13719092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8046887A Pending JPS63245812A (en) | 1987-03-31 | 1987-03-31 | High strength aerial transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63245812A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6070605A (en) * | 1983-09-26 | 1985-04-22 | 古河電気工業株式会社 | Method of producing high power aluminum alloy transmission line |
-
1987
- 1987-03-31 JP JP8046887A patent/JPS63245812A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6070605A (en) * | 1983-09-26 | 1985-04-22 | 古河電気工業株式会社 | Method of producing high power aluminum alloy transmission line |
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