JPH0237227Y2 - - Google Patents
Info
- Publication number
- JPH0237227Y2 JPH0237227Y2 JP14872385U JP14872385U JPH0237227Y2 JP H0237227 Y2 JPH0237227 Y2 JP H0237227Y2 JP 14872385 U JP14872385 U JP 14872385U JP 14872385 U JP14872385 U JP 14872385U JP H0237227 Y2 JPH0237227 Y2 JP H0237227Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- spiral rod
- elementary
- transmission line
- diameter
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は低騒音型の多導体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 a low-noise multi-conductor overhead power transmission line.
従来、多導体送電線を構成する各素導体の外周
にスパイラルロツドを巻き付けて風に起因して生
じる送電線の騒音を防止するようにした低騒音型
の多導体架空送電線が知られている。
Conventionally, low-noise multi-conductor overhead power transmission lines have been known in which spiral rods are wrapped around the outer periphery of each elementary conductor constituting the multi-conductor power transmission line to prevent noise on the power lines caused by wind. There is.
しかしながらこのような多導体架空送電線にお
いては、上記スパイラルロツドが素導体の外周表
面から突出する突出物となり、そして一般に多導
体送電線におけるコロナ発生現象は最下部に位置
する素導体下部の電位傾度の大きさによつて支配
されるので、上述のようにスパイラルロツドが巻
き付けられた最下部の素導体は風騒音は抑止する
ものの、その電位傾度が高まつてコロナ騒音等の
AN（オーデイブルノイズ）を発生し易くなるも
のであつた。 However, in such a multi-conductor overhead power transmission line, the spiral rod becomes a protrusion that protrudes from the outer circumferential surface of the elementary conductor, and the phenomenon of corona generation in a multi-conductor power transmission line is generally caused by the potential of the lowermost element conductor. Since it is controlled by the magnitude of the gradient, as mentioned above, although the lowest bare conductor around which the spiral rod is wound suppresses wind noise, its potential gradient increases and causes corona noise, etc.
This made AN (audible noise) more likely to occur.
本考案は、風騒音とコロナ騒音の双方に対処し
得る多導体送電線を提供することを目的とするも
のである。
The present invention aims to provide a multi-conductor power transmission line that can deal with both wind noise and corona noise.
最下部に位置する素導体以外の素導体における
風騒音防止用スパイラルロツドの径が必要最小直
径であり、かつ最下部に位置する素導体における
風騒音防止用スパイラルロツドの径が前記最小直
径よりも大なるものとされている多導体架空送電
線。
The diameter of the spiral rod for wind noise prevention in the bare conductor other than the bare conductor located at the bottom is the required minimum diameter, and the diameter of the spiral rod for wind noise prevention in the bare conductor located at the bottom is the minimum diameter. A multi-conductor overhead power transmission line, which is considered to be larger than a multi-conductor overhead power transmission line.
第１図および第２図は、それぞれ４導体および
６導体の場合における本考案の実施例を示すもの
で、多導体架空送電線を構成する各素導体１の外
周にそれぞれスパイラルロツド２が巻き付けられ
ている。そして、最下部に位置する素導体１Ｂ以
外の素導体１Ａにおけるスパイラルロツド２Ａ
は、導体重量の増加やそれに基づく架設張力の増
大等の悪影響を極力阻止するために、風騒音防止
効果を得るに必要な最少の直径Daを有するもの
とされており、また前記最下部に位置する素導体
１Ｂにおけるスパイラルロツド２Ｂは、その直径
Dbが前記スパイラルロツド２Ａの直径Daよりも
大とされている。
Figures 1 and 2 show examples of the present invention in the case of four conductors and six conductors, respectively, in which a spiral rod 2 is wound around the outer periphery of each elementary conductor 1 constituting a multi-conductor overhead power transmission line. It is being Then, the spiral rod 2A in the elementary conductor 1A other than the elementary conductor 1B located at the bottom
In order to prevent negative effects such as an increase in conductor weight and an increase in construction tension due to the increase in conductor weight as much as possible, the diameter of The diameter of the spiral rod 2B in the elementary conductor 1B is
Db is larger than the diameter Da of the spiral rod 2A.
したがつて上記構成によれば、総ての素導体は
スパイラルロツドのが巻き付けられているために
風騒音防止効果を有し、また最下部以外の素導体
におけるスパイラルロツドは必要最小限の太さと
されているので、多導体送電線全体としての重量
増大を極力制御することができ、かつ最下部に位
置する素導体には、他の素導体のそれよりも大な
る直径のスパイラルロツドが巻き付けられている
ので、そのスパイラルロツドの巻き付けに伴う電
位傾度の上昇を極力阻止することができ、そのた
めコロナ騒音等のANの発生を抑制することがで
きる。 Therefore, according to the above configuration, all the elementary conductors have a wind noise prevention effect because the spiral rods are wound around them, and the spiral rods on the elementary conductors other than the lowest part are kept to the minimum necessary. This makes it possible to control the weight increase of the entire multi-conductor transmission line as much as possible, and the lowest conductor has a spiral rod with a diameter larger than that of the other conductors. Since the wire is wound around the spiral rod, it is possible to prevent the potential gradient from increasing as much as possible due to the winding of the spiral rod, thereby suppressing the occurrence of AN such as corona noise.
〔考案の効果〕
以上より明らかなように本考案によれば、スパ
イラルロツドの巻き付けに伴う送電線全体の重量
増加を最小限に抑制しつつ、風騒音のみならずコ
ロナ騒音等のANをも阻止し得るものである。[Effects of the invention] As is clear from the above, according to the invention, it is possible to minimize the weight increase of the entire power transmission line due to the winding of spiral rods, while also reducing AN such as corona noise as well as wind noise. It can be prevented.
第１図および第２図は、本考案を４導体および
６導体架空送電線において実施した場合の例を示
す概略横断面図である。
１，１Ａ，１Ｂ……素導体、２，２Ａ，２Ｂ…
…スパイラルロツド。
FIGS. 1 and 2 are schematic cross-sectional views showing examples of the present invention applied to four-conductor and six-conductor overhead power transmission lines. 1, 1A, 1B... elemental conductor, 2, 2A, 2B...
...Spiral Rod.
Claims (1)
ドを巻き付けてなる多導体送電線において、最下
部に位置する素導体以外の素導体における前記ス
パイラルロツドの径が、風騒音防止のために必要
とされる最小直径であり、かつ最下部に位置する
素導体における前記スパイラルロツドの径が、前
記最小直径よりも大であることを特徴とする多導
体架空送電線。 In a multi-conductor transmission line in which a spiral rod for wind noise prevention is wrapped around the outer circumference of each elementary conductor, the diameter of the spiral rod in the elementary conductors other than the lowest elementary conductor is necessary for wind noise prevention. 1. A multi-conductor overhead power transmission line, wherein the diameter of the spiral rod in the lowest element conductor is larger than the minimum diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14872385U JPH0237227Y2 (en) | 1985-09-28 | 1985-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14872385U JPH0237227Y2 (en) | 1985-09-28 | 1985-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6257526U JPS6257526U (en) | 1987-04-09 |
| JPH0237227Y2 true JPH0237227Y2 (en) | 1990-10-09 |
Family
ID=31063262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14872385U Expired JPH0237227Y2 (en) | 1985-09-28 | 1985-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237227Y2 (en) |
-
1985
- 1985-09-28 JP JP14872385U patent/JPH0237227Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6257526U (en) | 1987-04-09 |
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