JPH031910Y2 - - Google Patents
Info
- Publication number
- JPH031910Y2 JPH031910Y2 JP1983034324U JP3432483U JPH031910Y2 JP H031910 Y2 JPH031910 Y2 JP H031910Y2 JP 1983034324 U JP1983034324 U JP 1983034324U JP 3432483 U JP3432483 U JP 3432483U JP H031910 Y2 JPH031910 Y2 JP H031910Y2
- Authority
- JP
- Japan
- Prior art keywords
- arc
- flashover
- horn
- shape memory
- memory alloy
- 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
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 11
- 230000006378 damage Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Insulators (AREA)
Description
【考案の詳細な説明】
本考案は、せん絡があつたか否かを簡単に確認
することのできるアークホーンに関する。[Detailed Description of the Invention] The present invention relates to an arc horn that can easily confirm whether or not there is a flashover.
アークホーンは、一般に第３図に示すように架
空送電線２０を支持する碍子１０の両端に一対の
ホーン１，２として取付けられ、雷などのせん絡
があつた場合に、このホーン１，２間にアークを
発生させて逃がしてやり、碍子１０上に直接せん
絡して損傷を与えるのを防止するものである。 Arc horns are generally installed as a pair of horns 1 and 2 at both ends of an insulator 10 that supports an overhead power transmission line 20, as shown in FIG. This is to prevent an arc from being generated and escaping between the two, and directly causing damage to the insulator 10.
このアークホーンが損傷するケースは少ない
が、せん絡の程度によりホーンの交換を要する場
合もある。従つて、送電線路を保守する上で随時
アークホーンへのせん絡があつたか否かを知るこ
とが必要となる。 Although there are few cases where this arc horn is damaged, depending on the degree of flashover, the horn may need to be replaced. Therefore, when maintaining power transmission lines, it is necessary to know at any time whether or not there is a flashover to the arc horn.
しかしながら、このアークホーンは高い鉄塔上
にあり、ヘリコプターなどで調べるにしても肉眼
によつてせん絡があつたか否かを確認することは
決して容易ではない。そこで火薬により旗が飛出
すようにしておいたり、ゴム球を取付けておい
て、せん絡時に落下するようにしておいたりする
工夫がなされている。しかし、火薬方式では再使
用ができないし、ゴム球は落下による危害のおそ
れがあるなどの難点があり、より簡便確実なせん
絡表示方式が求められていた。 However, this arc horn is located on a high steel tower, and it is by no means easy to confirm with the naked eye whether or not there has been a flashover, even if it is inspected by helicopter. To solve this problem, some methods have been devised, such as using gunpowder to make the flag fly off, or attaching a rubber ball to the flag so that it will fall during a flashover. However, the gunpowder method cannot be reused, and the rubber bulbs have drawbacks such as the risk of injury if they fall, so there was a need for a simpler and more reliable method for indicating flashovers.
以下に実施例に基いて図面によつて説明する。
第１図は本考案に係るアークホーンを示す見取図
であつて、アーク放電を生じせしめるホーン１の
先端に形状記憶合金３を取付けてなる。 Examples will be explained below with reference to the drawings.
FIG. 1 is a sketch showing an arc horn according to the present invention, in which a shape memory alloy 3 is attached to the tip of a horn 1 that generates arc discharge.
この形状記憶合金３は常温では直線状である
が、せん絡がありアーク放電時の熱で一時的に温
度が上昇すると、第２図に示すように円弧状に形
を変えようにできている。すなわち、本願考案の
アークホーンは、せん絡時にホーン１先端の形状
記憶合金３が屈曲するので、その屈曲の有無を識
別することによりせん絡があつたか否かが目視判
定できるようになつている。 This shape memory alloy 3 has a straight shape at room temperature, but when the temperature rises temporarily due to the heat caused by arc discharge, it changes shape into an arc shape as shown in Figure 2. . That is, in the arc horn of the present invention, since the shape memory alloy 3 at the tip of the horn 1 bends during a flashover, it is possible to visually determine whether or not a flashover has occurred by identifying the presence or absence of bending. .
上記形状記憶合金３は、異常な大電流アークの
場合には溶損することもあり得るが、通常の雷電
流では形状が変化するだけで、大きな損傷を受け
ることはない。送電線路への落雷は頻繁に発生す
るが、普通の落雷では形状記憶合金３が認識不可
となる程に損傷するケースは殆ど有得ないから、
アークホーンへのせん絡の有無は容易に把握でき
る。そして、せん絡による損傷が無ければ形状記
憶合金３を形の形状に復帰せしめ、損傷があれば
新しいものに取替えるだけで良い。尚、上記第１
図の形状は例示的なものであつて、昇温前と後で
形状記憶合金３の形状が異なるようになつていれ
ば良いことは言うまでもない。 The shape memory alloy 3 may be melted down in the case of an abnormally large current arc, but the shape will only change in the case of a normal lightning current and will not be seriously damaged. Although lightning strikes on power transmission lines occur frequently, it is highly unlikely that a normal lightning strike would damage the shape memory alloy 3 to the point that it becomes unrecognizable.
It is easy to determine whether there is a flashover to the arc horn. Then, if there is no damage due to the flashover, the shape memory alloy 3 is allowed to return to its original shape, and if there is damage, it is sufficient to simply replace it with a new one. In addition, the above 1st
The shape shown in the figure is just an example, and it goes without saying that the shape memory alloy 3 may have a different shape before and after the temperature rise.
本願考案のアークホーンはこのように構成され
ているので、ヘリコプターなどにより、この形状
記憶合金の中の変形しているものを探せばよく、
せん絡の有無の発見が極めて容易である。しかも
形状記憶合金は本質的に金属であるから強度は十
分であつて耐候性を有し、固定や着脱が確実容易
であるなどその効用は極めて大きい。 Since the arc horn of the present invention is constructed in this way, it is only necessary to use a helicopter or the like to search for deformed parts of the shape memory alloy.
It is extremely easy to detect the presence or absence of a flashover. Furthermore, since shape memory alloys are essentially metals, they have sufficient strength and weather resistance, and can be reliably and easily fixed and removed, making them extremely useful.
第１図は本考案に係るアークホーンの見取図、
第２図はそのせん絡の様子を示す見取図、第３図
は従来のアークホーンを示す見取図である。
１，２：ホーン、３：形状記憶合金。
Figure 1 is a sketch of the arc horn according to the present invention.
FIG. 2 is a sketch showing the state of the sparkling, and FIG. 3 is a sketch showing a conventional arc horn. 1, 2: Horn, 3: Shape memory alloy.
Claims (1)
る形状記憶合金を取付けてなるアークホーン。 An arc horn made by attaching a shape memory alloy that changes shape when a part of the horn is subjected to a flashover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3432483U JPS59139988U (en) | 1983-03-10 | 1983-03-10 | archorn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3432483U JPS59139988U (en) | 1983-03-10 | 1983-03-10 | archorn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59139988U JPS59139988U (en) | 1984-09-19 |
| JPH031910Y2 true JPH031910Y2 (en) | 1991-01-21 |
Family
ID=30165090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3432483U Granted JPS59139988U (en) | 1983-03-10 | 1983-03-10 | archorn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59139988U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4502860B2 (en) * | 2005-03-29 | 2010-07-14 | 中国電力株式会社 | Wire winding binding and method for detecting damaged portion of electric wire using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55178985U (en) * | 1979-06-12 | 1980-12-22 |
-
1983
- 1983-03-10 JP JP3432483U patent/JPS59139988U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59139988U (en) | 1984-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Eisner | Tensile tests on silicon whiskers | |
| US4196550A (en) | Post | |
| JPH031910Y2 (en) | ||
| CN206498133U (en) | Secondary wiring terminals are dielectrically separated from protective case | |
| CN87101777A (en) | suspension insulator | |
| JP2005130565A (en) | Accident steel tower deducing method and accident thunder deducing method | |
| CA1047789A (en) | Method and gauge for nondestructively testing and certifying the workable qualities of a casting | |
| JPS6439547A (en) | Making of test piece used for decision on purity grade of metal | |
| US2028576A (en) | Pipe section protection | |
| JP3176777B2 (en) | Ground mounting bracket for long trunk insulator device | |
| JP4286631B2 (en) | Lightning conductor damage estimation method | |
| JPS63139B2 (en) | ||
| US2060151A (en) | Ground rod | |
| JPH07176233A (en) | Jumper wire v-shape hanging device | |
| US2323967A (en) | Thimble-equipped insulator | |
| JPH07336853A (en) | Twist preventing damper | |
| CN210272735U (en) | Anti-static grounding clamp | |
| CN109950831B (en) | Large knife clamp tensile test fixture and test method | |
| CN106848914A (en) | Secondary wiring terminals are dielectrically separated from protective case | |
| US2500927A (en) | Insulator pin | |
| CN207931742U (en) | A kind of S pins movable contact group | |
| KR200249168Y1 (en) | Pendent Polymer Insulator for Overhead Distribution Line | |
| JPS5897438A (en) | Spacer fitting method | |
| JPH0354313B2 (en) | ||
| JPS6119461Y2 (en) |