JP2503478Y2 - Steel core aluminum stranded wire for high voltage overhead power transmission line - Google Patents
Steel core aluminum stranded wire for high voltage overhead power transmission lineInfo
- Publication number
- JP2503478Y2 JP2503478Y2 JP1990064982U JP6498290U JP2503478Y2 JP 2503478 Y2 JP2503478 Y2 JP 2503478Y2 JP 1990064982 U JP1990064982 U JP 1990064982U JP 6498290 U JP6498290 U JP 6498290U JP 2503478 Y2 JP2503478 Y2 JP 2503478Y2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- stranded wire
- aluminum
- aluminum stranded
- 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.)
- Expired - Lifetime
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 30
- 229910052782 aluminium Inorganic materials 0.000 title claims description 28
- 229910000831 Steel Inorganic materials 0.000 title claims description 13
- 239000010959 steel Substances 0.000 title claims description 13
- 230000005540 biological transmission Effects 0.000 title claims description 8
- 239000004033 plastic Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Non-Insulated Conductors (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、架空送電線として使用される鋼心アルミ撚
線の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement in a steel core aluminum stranded wire used as an overhead power transmission line.
なおこの明細書において「アルミ」とは「アルミニウ
ム」または「アルミニウム合金」を意味するものとす
る。In this specification, "aluminum" means "aluminum" or "aluminum alloy".
架空送電線には鋼心アルミ撚線が広く用いられてい
る。高電圧(例えば275KV以上)の架空送電線になる
と、電線表面からのコロナ放電を防止するため、電線外
径を大きくする必要があるが、電流容量的にはそれほど
大サイズの電線を必要としない場合がある。Steel-core aluminum stranded wire is widely used for overhead power lines. When it comes to high voltage (for example, 275KV or more) overhead transmission line, it is necessary to increase the outer diameter of the wire to prevent corona discharge from the surface of the wire, but in terms of current capacity, a large size wire is not required. There are cases.
コロナ防止の観点から電線外径を大きくすると、電線
の重量が大きくなり、架線張力も大きくなるため、鉄塔
等の支持物が大型化し、不経済である。If the outer diameter of the electric wire is increased from the viewpoint of preventing corona, the weight of the electric wire is increased and the tension of the overhead wire is also increased, so that the support such as a steel tower becomes large and it is uneconomical.
本考案は、上記のような従来技術の問題点に鑑み、外
径の大きさの割には軽量な高電圧架空送電線用鋼心アル
ミ撚線を提供するもので、その構成は、鋼撚線の外周に
アルミ撚線層を複数層設けてなる鋼心アルミ撚線におい
て、最外層より内側のアルミ撚線層のアルミ素線の一部
を、水の滞留を防ぐ大きさの水抜き穴を有するプラスチ
ック製中空素線で置換したことを特徴とするものであ
る。In view of the above-mentioned problems of the prior art, the present invention provides a steel core aluminum stranded wire for a high voltage overhead power transmission line, which is light in weight for its outer diameter. Steel core aluminum stranded wire with multiple layers of stranded aluminum wire on the outer circumference of the wire, a part of the aluminum strand of the aluminum stranded wire layer inside the outermost layer is a drain hole of a size that prevents water retention It is characterized in that it is replaced by a plastic hollow element wire having.
プラスチック製中空素線は、耐熱性、潰れ強度などの
観点からポリカーボネート等の耐熱プラスチック製にす
ることが好ましい。The hollow plastic wire is preferably made of heat-resistant plastic such as polycarbonate from the viewpoint of heat resistance and crush strength.
電線外径を大きくして電流容量的に余裕が出る場合に
はアルミ素線の一部をプラスチック製中空素線に置換し
ても問題はない。プラスチック製中空素線はアルミ製中
実素線より格段に軽量であるから、これを使用すれば、
電線外径を小さくすることなく電線の軽量化が図れる。If the outer diameter of the wire is increased and there is a margin in current capacity, there is no problem even if part of the aluminum wire is replaced with a hollow plastic wire. The hollow plastic wire is much lighter than the solid aluminum wire, so if you use this,
The weight of the electric wire can be reduced without reducing the outer diameter of the electric wire.
中空素線を使用した場合、何らかの原因で中空素線に
亀裂などが発生すると、中空素線内に雨水が侵入して、
それが内部に滞留することが考えられる。こうなると電
線の重量が増加し、弛度および張力の増加をまねく結果
となり、電線軽量化の意味がなくなる。中空素線に水抜
き穴を設けたのは中空素線内に水が滞留するのを防止す
るためである。When a hollow wire is used, if the hollow wire is cracked for some reason, rainwater will enter the hollow wire,
It is possible that it stays inside. In this case, the weight of the electric wire is increased, resulting in an increase in slackness and tension, and there is no point in reducing the weight of the electric wire. The reason why the hollow wire is provided with a drain hole is to prevent water from staying in the hollow wire.
また最外層のアルミ撚線層に中空素線を設けなかった
のは、最外層は表皮効果により電流が最も多く流れる部
分であることおよび架線工事などの際に素線のつぶれが
発生しやすいことのためである。In addition, the hollow strands were not provided in the outermost aluminum stranded wire layer because the outermost layer is the part where the most current flows due to the skin effect and that the strands are easily crushed during overhead wire construction. Because of.
以下、本考案の実施例を図面を参照して詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図−1は本考案の一実施例を示す。この鋼心アルミ撚
線は、鋼素線11を撚り合わせた鋼撚線の外周にアルミ素
線12を2層に撚り合わせるタイプのものにおいて、内層
のアルミ撚線層のアルミ素線の一部を、図−3に示すよ
うな水抜き穴14を有するプラスチック製中空素線13で置
換したものである。FIG. 1 shows an embodiment of the present invention. This steel-core aluminum stranded wire is a type in which the aluminum strand 12 is twisted into two layers on the outer periphery of the steel stranded wire in which the steel strands 11 are stranded, and a part of the aluminum strand of the inner layer Is replaced with a plastic hollow element wire 13 having a drain hole 14 as shown in FIG.
図−2は本考案の他の実施例を示す。この鋼心アルミ
撚線は、鋼素線11を撚り合わせた鋼撚線の外周にアルミ
素線12を3層に撚り合わせるタイプのものにおいて、最
外層を除く内層2のアルミ撚線層のアルミ素線12の一部
を、図−3に示すような水抜き穴14を有するプラスチッ
ク製中空素線13で置換したものである。FIG. 2 shows another embodiment of the present invention. This steel-core aluminum stranded wire is a type in which the aluminum stranded wire 12 is stranded in three layers on the outer circumference of the steel stranded wire in which the steel stranded wires 11 are stranded, and the aluminum stranded wire layer of the inner layer 2 excluding the outermost layer is made of aluminum. A part of the wire 12 is replaced with a hollow plastic wire 13 having a drain hole 14 as shown in FIG.
水抜き穴14は図示のような丸穴ではなく、長手方向に
延びるスリットの形態であってもよい。The drain hole 14 may be in the form of a slit extending in the longitudinal direction, instead of the round hole as shown.
以上説明したように本考案によれば、アルミ素線の一
部をプラスチック製中空素線で置換したので、外径の大
きさの割に軽量な電線が得られ、コロナ防止と鉄塔等の
支持物のコスト低減とを両立させることができる。また
中空素線には水抜き穴が設けられているため、内部に水
が溜まることがなく、架設後に重量が増加するおそれが
ない。また最外層はすべてアルミ素線であるため、アル
ミ素線数の割には交流抵抗が小さく、かつ架線工事の際
に素線の潰れが発生しにくいという利点もある。As described above, according to the present invention, since a part of the aluminum element wire is replaced with a hollow plastic element wire, a lightweight electric wire can be obtained for the size of the outer diameter, and it is possible to prevent corona and support a steel tower or the like. It is possible to achieve both cost reduction of goods. In addition, since the hollow wire is provided with a water drainage hole, water does not collect inside, and there is no fear that the weight will increase after installation. Further, since the outermost layers are all aluminum wires, there is an advantage that the AC resistance is small relative to the number of aluminum wires and the wires are not easily crushed during overhead wire construction.
図−1および図−2はそれぞれ本考案の一実施例に係る
鋼心アルミ撚線の断面図、図−3はそれに使用したプラ
スチック製中空素線の斜視図である。 11:鋼素線、12:アルミ素線 13:プラスチック製中空素線、14:水抜き穴1 and 2 are sectional views of a steel-core aluminum stranded wire according to an embodiment of the present invention, and FIG. 3 is a perspective view of a plastic hollow element wire used therein. 11: Steel wire, 12: Aluminum wire 13: Hollow plastic wire, 14: Drain hole
───────────────────────────────────────────────────── フロントページの続き (72)考案者 樋下田 均 東京都千代田区内幸町1丁目1番3号 東京電力株式会社内 (72)考案者 藤島 孝夫 東京都港区赤坂1丁目6番14号 東京電 力株式会社送変電建設準備事務所内 (72)考案者 浦澤 克行 東京都港区赤坂1丁目6番14号 東京電 力株式会社送変電建設準備事務所内 (72)考案者 小川 正浩 東京都港区赤坂1丁目6番14号 東京電 力株式会社送変電建設準備事務所内 (56)参考文献 実願 昭56−100486号(実開 昭58− 6311号)の願書に添付した明細書及び図 面の内容を撮影したマイクロフィルム (JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hitoshi Shimoda 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Company (72) Inventor Takao Fujishima 1-6-14 Akasaka, Minato-ku, Tokyo Tokyo Electric Power Co., Ltd. Transmission & Substation Construction Preparation Office (72) Inventor Katsuyuki Urasawa 1-6-14 Akasaka, Minato-ku, Tokyo Tokyo Electric Power Co., Transmission & Substation Construction Preparation Office (72) Creator Masahiro Ogawa Minato-ku, Tokyo 1-6-14 Akasaka, Tokyo Electric Power Co., Inc., Transmission and Substation Construction Preparation Office (56) References The specifications and drawings attached to the application for Japanese Patent Application No. Sho 56-100486 (No. Sho 58-6311). Micro film of the contents (JP, U)
Claims (1)
てなる鋼心アルミ撚線において、最外層より内側のアル
ミ撚線層のアルミ素線の一部を、水の滞留を防ぐ大きさ
の水抜き穴を有するプラスチック製中空素線で置換した
ことを特徴とする高電圧架空送電線用鋼心アルミ撚線。1. A steel-core aluminum stranded wire comprising a plurality of aluminum stranded wire layers provided on the outer periphery of a steel stranded wire, wherein a part of the aluminum element wire of the aluminum stranded wire layer inside the outermost layer is allowed to retain water. A steel core aluminum stranded wire for a high-voltage overhead power transmission line, which is replaced by a plastic hollow element wire having a drainage hole of a size to prevent it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990064982U JP2503478Y2 (en) | 1990-06-21 | 1990-06-21 | Steel core aluminum stranded wire for high voltage overhead power transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990064982U JP2503478Y2 (en) | 1990-06-21 | 1990-06-21 | Steel core aluminum stranded wire for high voltage overhead power transmission line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0424222U JPH0424222U (en) | 1992-02-27 |
JP2503478Y2 true JP2503478Y2 (en) | 1996-07-03 |
Family
ID=31596403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990064982U Expired - Lifetime JP2503478Y2 (en) | 1990-06-21 | 1990-06-21 | Steel core aluminum stranded wire for high voltage overhead power transmission line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2503478Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS586311U (en) * | 1981-07-06 | 1983-01-17 | 日立電線株式会社 | overhead power lines |
-
1990
- 1990-06-21 JP JP1990064982U patent/JP2503478Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0424222U (en) | 1992-02-27 |
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