JPH089544A - Spacer, conductor loosely grasping part spacer and aerial transmission line prevented from galloping vibration - Google Patents
Spacer, conductor loosely grasping part spacer and aerial transmission line prevented from galloping vibrationInfo
- Publication number
- JPH089544A JPH089544A JP6156560A JP15656094A JPH089544A JP H089544 A JPH089544 A JP H089544A JP 6156560 A JP6156560 A JP 6156560A JP 15656094 A JP15656094 A JP 15656094A JP H089544 A JPH089544 A JP H089544A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- transmission line
- power transmission
- loose
- spacer
- 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.)
- Granted
Links
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、ギャロッピング振動を
防止するためのスペーサと、このスペーサに用いられる
とともに着氷雪の成長を防止し得るスペーサ用のルーズ
導体把持部、およびギャロッピング振動を防止した架空
送電線路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer for preventing galloping vibration, a loose conductor gripping portion for the spacer which is used for this spacer and can prevent the growth of icing snow, and an imaginary space for preventing galloping vibration. It concerns transmission lines.
【0002】[0002]
【従来の技術】架空送電線路に生ずる振動現象の1つと
してギャロッピング振動がある。この振動は、その振幅
が大きくて送電線に電気的および機械的に重大な障害を
与えることがあり、その対策が従来より種々研究されて
いる。そして、ギャロッピング振動の発生メカニズム
は、一般的に、氷雪が送電線に吹き付けると、風上側に
翼状の着氷雪が生じ、この着氷雪と送電線の断面形状に
より、送電線が風に対して浮き上がりを生じるためであ
る、と説明されている。2. Description of the Related Art Galloping vibration is one of the vibration phenomena occurring in overhead power transmission lines. This vibration has a large amplitude and may seriously impair the transmission line electrically and mechanically, and various countermeasures have been conventionally studied. The mechanism of the galloping vibration is that, when ice and snow blows on the power transmission line, wing-shaped icy snow forms on the windward side, and due to the cross-sectional shape of the frosted snow and the power transmission line, the power transmission line floats up against the wind. It is explained that it is because
【0003】従来のこのようなギャロッピング振動を防
止する対策としては、実開昭50−68892号公報に
示されるごとく、架設された複数本の送電線からなる架
空送電線路に複数個のスペーサが設けられ、このスペー
サに設けた少なくとも1つ以上の一部の回転導電把持部
で送電線が軸回りに回転自在に把持され、他の導電把持
部で送電線が固定把持される。しかも、架空送電線路の
1径間に複数個のスペーサを設けるにあたり、回転自在
に送電線を把持する回転導電把持部と送電線を固定把持
する導電把持部が、送電線の長手方向で交互にまたはラ
ンダムになるように取り付けられる。As a conventional measure for preventing such galloping vibration, as shown in Japanese Utility Model Laid-Open No. 50-68892, a plurality of spacers are provided on an overhead power transmission line composed of a plurality of erected transmission lines. The power transmission line is rotatably held around the axis by at least one part of the rotary conductive gripping portions provided on the spacer, and the power transmission line is fixedly gripped by the other conductive gripping portion. Moreover, in providing a plurality of spacers in one diameter of the overhead power transmission line, the rotating conductive gripping part that rotatably grips the power transmission line and the conductive gripping part that fixedly grips the power transmission line are alternately arranged in the longitudinal direction of the power transmission line. Or they can be attached randomly.
【0004】かかる構成において、固定把持された送電
線は捩じれが防止されて風上側にのみ着氷雪が発生する
のに対して、回転自在に把持された送電線は自由に捩じ
れるために、ほぼ断面円形筒状の着氷雪が大きく発達
し、双方の着氷雪の重量が大きく相違し、この重量差で
スペーサが設けられた箇所の架空送電線路全体が回転す
る捩じれが生じる。そして、この重量差により各送電線
路の運動周期が相違し、架空送電線路全体として上下振
動するギャロッピング振動が抑制される。In such a structure, the fixedly gripped power transmission line is prevented from twisting, and icing snow is generated only on the windward side, whereas the rotatably gripped power transmission line is twisted freely, so that it is almost free. The ice accretion with a circular cross section is greatly developed, and the weights of the ice accretion on both sides are greatly different, and the difference in the weight causes a twist to rotate the entire overhead power transmission line at the place where the spacer is provided. The movement cycle of each transmission line is different due to this weight difference, and galloping vibration that vertically vibrates as a whole of the overhead transmission line is suppressed.
【0005】[0005]
【発明が解決しようとする課題】上述のごとき従来技術
にあっては、回転自在に把持された送電線に対して断面
円形筒状の着氷雪が発生してこれが大きく成長し易く、
1径間の長いものにあっては、この断面円形筒状の着氷
雪による重量が過大なものとなって断線を生じる虞があ
る。また、従来のものにあっては、回転自在に送電線を
把持する回転導電把持部と送電線を固定把持する導電把
持部が、送電線の長手方向で交互にまたはランダムに取
り付けられるために、断面円形筒状の着氷雪による重量
が複数本の送電線に分散されるが、送電線間で風に対す
る浮き上がりにより生ずる運動周期の相違は小さくな
り、径間全体では複数の送電線の回転運動周期が同期し
易く、ギャロッピング振動の抑制が必ずしも充分でな
い。In the prior art as described above, icing snow having a circular cylindrical section is generated on the rotatably gripped power transmission line, which easily grows greatly.
In the case of one having a long diameter, there is a possibility that the weight due to the snow accretion having a circular cylindrical shape in cross section becomes excessive and a break occurs. Further, in the conventional one, the rotating conductive gripping portion that rotatably grips the power transmission line and the conductive gripping portion that securely grips the power transmission line are attached alternately or randomly in the longitudinal direction of the power transmission line. Although the weight of snow accretion with a circular cylindrical shape is distributed over multiple transmission lines, the difference in the motion cycle caused by the floating of the wind between the transmission lines is small, and the rotation motion cycle of multiple transmission lines is reduced over the entire span. Are easily synchronized, and the galloping vibration is not sufficiently suppressed.
【0006】本発明はかかる事情に鑑みてなされたもの
で、送電線に断面円形筒状の着氷雪が発生しないように
したスペーサとスペーサ用のルーズ導体把持部を提供す
ることを目的とし、また複数本の送電線の一方の片側半
分の回転運動周期と他方の片側半分の回転運動周期を大
きく相違させて、径間全体で振動を減衰させ得るギャロ
ッピング振動を防止した架空送電線路を提供することを
目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spacer and a loose conductor gripping portion for the spacer, in which a frosted snow having a circular cylindrical cross section does not occur on a power transmission line. (EN) Provided is an overhead power transmission line in which galloping vibrations capable of damping vibrations in the entire span are prevented by largely differentiating the rotational motion cycle of one half of one of the plurality of power transmission lines and the rotational motion cycle of the other half of the other. With the goal.
【0007】[0007]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明のスペーサは、枠体の軸対称にある偶数個
の位置で、対称軸のいずれか一方の片側に設けられた導
体把持部が素導体を固定把持し、他方の片側に設けられ
たルーズ導体把持部が、素導体をルーズ用クランプ本体
で把持し、このルーズ用クランプ本体を、把持した前記
素導体の軸回りに予め設定された角度範囲で揺動自在に
前記枠体に連結して構成されている。In order to achieve the above object, the spacer of the present invention has a conductor grip provided on one side of one of the axes of symmetry at an even number of axially symmetrical positions of the frame body. The part holds the element conductor fixedly, and the loose conductor holding part provided on the other side holds the element conductor by the loose clamp body, and the loose clamp body is preliminarily arranged around the axis of the grasped element conductor. It is configured to be swingably connected to the frame body within a set angle range.
【0008】また、本発明のスペーサ用のルーズ導体把
持部は、素導体と平行な揺動軸で開閉自在に2分割され
るとともに閉じて前記素導体を把持するルーズ用クラン
プ本体を、把持した前記素導体の軸回りに予め設定され
た角度範囲で揺動自在に連結部材に配設し、この連結部
材をスペーサの枠体に連結するように構成されている。Further, the loose conductor gripping portion for the spacer of the present invention is divided into two parts which can be opened and closed by a swing shaft parallel to the element conductor and which is closed to hold the loose clamp body for gripping the element conductor. The connection member is swingably arranged around an axis of the element conductor within a preset angle range, and the connection member is connected to the frame body of the spacer.
【0009】さらに、前記ルーズ用クランプ本体を、前
記素導体を両側から把持するように2分割された内管部
材と、この内管部材が固定されるとともに前記揺動軸で
開閉自在に2分割された外管部材との二重管構造とする
とともに、前記内管部材と前記外管部材との間の少なく
とも一部に隙間部を形成し、前記外管部材に前記隙間部
に達するスリットを軸回りに形成し、前記連結部材に前
記隙間部に頭部が挿入され前記スリットに首部が貫通さ
れるT字状突起を設け、このT字状突起を前記隙間部と
スリット内を軸回りに揺動自在として、前記ルーズ用ク
ランプ本体を、把持した前記素導体の軸回りに揺動自在
に前記連結部材に配設して構成することもできる。Further, the loose clamp main body is divided into two parts so as to hold the element conductor from both sides, and the inner pipe member is fixed and divided into two parts which can be opened and closed by the swing shaft. With a double pipe structure with the outer pipe member formed, a gap portion is formed in at least a part between the inner pipe member and the outer pipe member, and a slit reaching the gap portion is formed in the outer pipe member. A T-shaped projection is formed around the axis, and a head portion is inserted into the gap portion and the neck portion is penetrated through the slit in the coupling member. The T-shaped projection is provided around the gap portion and the slit around the axis. The loose clamp body may be swingably arranged around the axis of the gripped element conductor in the connecting member.
【0010】また、本発明のギャロッピング振動を防止
した架空送電線路は、架設された偶数本の送電線からな
る架空送電線路にスペーサを設け、線路方向を見て、前
記スペーサの枠体の左または右の片側半分に設けた導体
把持部で片側半分の送電線を固定把持し、他方の片側半
分に設けたルーズ導体把持部で、他方の片側半分の送電
線をルーズ用クランプ本体で把持し、このルーズ用クラ
ンプ本体を、把持した前記送電線の軸回りに予め設定さ
れた角度範囲で揺動自在に連結部材に配設し、この連結
部材を前記枠体に連結し、前記架空送電線路の一方の片
側半分の送電線と他方の片側半分の送電線の捩じれ剛性
が相違するように構成されている。Further, in the aerial power transmission line according to the present invention in which galloping vibration is prevented, a spacer is provided on the aerial power transmission line composed of an even number of power transmission lines installed, and when viewed in the line direction, the spacer frame is left or The conductor gripping part provided on the right half of the side holds and grips the power transmission line on one side half, and the loose conductor gripping part on the other half of the side grips the power transmission line of the other half on the loose clamp body. The loose clamp main body is disposed on a connecting member so as to be swingable within a preset angle range around the axis of the gripped power transmission line, and the connecting member is connected to the frame body, and the loose power transmission line The torsional rigidity of one half of the power transmission line is different from that of the other half of the power transmission line.
【0011】さらに、架設された偶数本の送電線からな
る架空送電線路の1つの径間に複数個のスペーサを設
け、線路方向を見て、これらの前記スペーサの枠体の左
または右の同一側の片側半分に設けられた全ての導体把
持部で片側半分の送電線を固定把持し、他方の側の片側
半分に設けられた全てのルーズ導体把持部で他方の片側
半分の送電線をルーズ用クランプ本体で把持し、これら
のルーズ用クランプ本体を前記素導体の軸回りに予め設
定された角度範囲で揺動自在に連結部材に配設し、この
連結部材を前記枠体に連結し、前記架空送電線路の1つ
の径間で線路方向を見て片側半分の送電線と他方の片側
半分の送電線の捩じれ剛性が相違するように構成しても
良い。Further, a plurality of spacers are provided in one diameter of an overhead power transmission line composed of an even number of power transmission lines installed, and when viewed in the line direction, the frame bodies of these spacers are the same on the left or right. One side half of one side fixedly holds the transmission line of one side half, and all loose side grips provided on the other side half of the conductor loosens the transmission line of the other side half Gripping with the clamp body for use, the loose clamp body is swingably arranged around the axis of the element conductor within a preset angle range on the connecting member, and the connecting member is connected to the frame body, The torsional rigidity of one half of the power transmission line may be different from that of the other half of the power transmission line as viewed in the line direction across one span of the overhead power transmission line.
【0012】[0012]
【作 用】本発明のスペーサにあっては、スペーサの枠
体の一方の片側半分に設けられたルーズ導体把持部で素
導体を予め設定された角度範囲で揺動自在に把持するの
で、この素導体は自由な回転ができずに断面円形筒状の
着氷雪が発生しない。そこで、素導体に着氷雪による過
大な荷重が加わらない。しかも、スペーサの他方の片側
半分にある素導体を固定把持し、他方の片側半分にある
素導体を揺動自在に把持するので、双方の素導体の捩じ
れ剛性が大きく相違する。[Operation] In the spacer of the present invention, the loose conductor gripping portion provided on one half of one side of the frame body of the spacer grips the element conductor swingably within a preset angle range. The element conductors cannot rotate freely, and ice accretion with a circular cylindrical section does not occur. Therefore, an excessive load due to icing and snow is not applied to the element conductor. Moreover, since the element conductor on the other half of the spacer is fixedly held and the element conductor on the other half of the spacer is swingably held, the torsional rigidity of the two element conductors is greatly different.
【0013】また、本発明のスペーサ用のルーズ導体把
持部にあっては、素導体を把持するルーズ用クランプ本
体が連結部材に揺動自在に配設されるので、素導体が把
持される位置で、軸方向にずれることなしに軸回りに揺
動し得る。Further, in the loose conductor gripping portion for the spacer of the present invention, since the loose clamp main body for gripping the element conductor is swingably arranged on the connecting member, the position where the element conductor is gripped is set. Thus, it can swing about the axis without being displaced in the axial direction.
【0014】さらに、請求項3記載のスペーサ用のルー
ズ導体把持部にあっては、素導体と平行な揺動軸で開閉
自在に2分割された外管部材で、素導体を跨いで閉じる
ことによりルーズ用クランプ本体で素導体を把持し得
る。しかも、外管部材と内管部材の間に形成された隙間
部に連結部材のT字状突起を挿入したままで、素導体を
把持し得る。Further, in the loose conductor gripping portion for the spacer according to the present invention, the outer conductor member is divided into two parts which can be opened and closed by the swing shaft parallel to the element conductor and is closed across the element conductor. The element body can be gripped by the loose clamp body. Moreover, the element conductor can be gripped while the T-shaped projection of the connecting member is inserted in the gap formed between the outer pipe member and the inner pipe member.
【0015】また、本発明のギャロッピング振動を防止
した架空送電線路は、偶数本の送電線の一方の片側半分
にある送電線を固定把持し、他方の片側半分にある送電
線を揺動自在に把持するので、一方の片側半分の送電線
は捩じれ剛性が大きく、他方の片側半分の送電線は捩じ
れ剛性が小さい。そこで、捩じれ剛性の相違する2つの
グループの送電線は互いに回転運動周期が同期せず、架
空送電線路全体としての振動が抑制される。しかも、揺
動自在に把持される送電線には、断面円形筒状の着氷雪
が発生せず、着氷雪による過大な荷重が送電線に加わら
ない。Further, in the overhead power transmission line according to the present invention in which galloping vibration is prevented, the power transmission line in one half of one of the even number of power transmission lines is fixedly gripped, and the power transmission line in the other half of the power transmission line is swingable. Since it is gripped, the power transmission line on one half of one side has large torsional rigidity, and the power transmission line on the other half of one side has small torsional rigidity. Therefore, the two groups of power transmission lines having different torsional rigidity do not synchronize their rotational motion cycles with each other, and the vibration of the entire overhead power transmission line is suppressed. Moreover, icing snow having a circular cylindrical shape does not occur on the power transmission line that is swingably held, and an excessive load due to the icing snow is not applied to the power transmission line.
【0016】さらに、請求項5記載のギャロッピング振
動を防止した架空送電線路にあっては、1つの径間に設
けられた複数のスペーサで、一方の片側半分にある全て
の送電線を固定把持し、他方の片側半分にある全ての送
電線を揺動自在に把持するので、径間全体で捩じれ剛性
の相違する2つのグループの送電線により、径間全体と
しての振動が抑制される。Further, in the aerial power transmission line which prevents galloping vibration according to a fifth aspect of the present invention, a plurality of spacers provided in one span fixedly holds all the power transmission lines in one half of one side. Since all the power transmission lines on the other half of the other side are swingably held, the vibration of the entire span is suppressed by the two groups of transmission lines having different torsional rigidity in the span.
【0017】[0017]
【実施例】以下、本発明の一実施例を、図1ないし図9
を参照して説明する。図1は、本発明のスペーサの一実
施例の一部を切り欠いた正面図であり、図2(a)は、
図1のA矢視図であり、図2(b)は、図1のB矢視図
であり、図3は、図1のC−C断面矢視拡大図であり、
図4は、図1に用いるスペーサ用のルーズ導体把持部の
分解斜視図であり、図5は、図4の組み立て外観斜視図
であり、図6は、図4に示される外管部材の一部の構成
部品を異なる方向から見た外観斜視図であり、図7
(a)は、素導体が反時計回りに90°揺動した状態を
示すスペーサ用のルーズ導体把持部の縦断面図であり、
図7(b)は、素導体が時計回りに90°揺動した状態
を示すスペーサ用のルーズ導体把持部の縦断面図であ
り、図8は、架空送電線路の1径間に複数のスペーサを
設けた簡略斜視図であり、図9は、架空送電線路のギャ
ロッピング振動による上下運動軌跡および送電線の回転
を説明する簡略図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to. FIG. 1 is a front view in which a part of an embodiment of the spacer of the present invention is cut away, and FIG.
2 is a view on arrow A in FIG. 1, FIG. 2 (b) is a view on arrow B in FIG. 1, and FIG. 3 is an enlarged view on arrow C-C in FIG.
4 is an exploded perspective view of a loose conductor gripping portion for a spacer used in FIG. 1, FIG. 5 is a perspective view of an assembled appearance of FIG. 4, and FIG. 6 is a perspective view of an outer tube member shown in FIG. FIG. 7 is an external perspective view of the constituent parts of the part viewed from different directions.
(A) is a vertical cross-sectional view of a loose conductor gripping portion for a spacer showing a state in which an element conductor is swung 90 ° counterclockwise,
FIG. 7B is a vertical cross-sectional view of a loose conductor gripping portion for a spacer showing a state in which an element conductor swings 90 ° clockwise, and FIG. 8 shows a plurality of spacers in one diameter of an overhead power transmission line. 9 is a simplified perspective view in which FIG. 9 is provided, and FIG. 9 is a simplified diagram illustrating a vertical motion locus and a rotation of a power transmission line due to galloping vibration of an overhead power transmission line.
【0018】まず、本発明のスペーサの構造につき説明
する。図1に示すごとく、スペーサ10は、枠体12,
12…により左右で軸対称の位置に把持部が設けられ
る。そして、図1で上下方向の対称軸に対して右片側半
分に設けられた導体把持部14,14は、素導体16,
16を固定把持するもので、例えば実公昭57−574
62号公報で示される公知のものである。なお、図1に
あっては素導体16,16をアーマーロッド18,18
…で巻き、その上から把持される。First, the structure of the spacer of the present invention will be described. As shown in FIG. 1, the spacer 10 includes a frame 12,
By 12 ..., the gripping portions are provided at axially symmetrical positions on the left and right. Then, in FIG. 1, the conductor gripping portions 14, 14 provided on the right side half with respect to the vertical symmetry axis are
16 is a fixed gripper, and is, for example, Japanese Utility Model Publication No. 57-574.
It is a known one shown in Japanese Patent Laid-Open No. 62-62. In FIG. 1, the element conductors 16 and 16 are connected to the armor rods 18 and 18, respectively.
It is wound with ... and gripped from above.
【0019】また、図1で左片側半分に設けられたルー
ズ導体把持部20,20は、後述するごとく新規な構造
であり、素導体16,16が軸回りに揺動自在である。
このルーズ導体把持部20,20は、素導体16を把持
固定するルーズクランプ用本体22が、連結部材24の
一端部に素導体16の軸回りに180°の範囲で揺動自
在に配設され、連結部材24の他端部がスペーサ10の
枠体12,12…に連結されて構成される。なお、スペ
ーサ10は、左右で重量がバランスするように形成され
る。The loose conductor gripping portions 20, 20 provided on the left half of FIG. 1 have a novel structure as will be described later, and the element conductors 16, 16 are swingable around the axis.
In the loose conductor gripping portions 20, 20, a loose clamp main body 22 for gripping and fixing the raw conductor 16 is arranged at one end of a connecting member 24 so as to be swingable around the axis of the raw conductor 16 within a range of 180 °. The other end of the connecting member 24 is connected to the frame bodies 12, 12, ... Of the spacer 10. The spacer 10 is formed so that the weight is balanced on the left and right.
【0020】次に、本発明のスペーサ用のルーズ導体把
持部20の構造につき説明する。素導体16を両側から
把持できるように軸を含む平面で筒状体が略2分割され
た一対の部材26a,26aからなる内管部材26が形
成される。この内管部材26の両端には、それぞれフラ
ンジ状突起部26b,26b…が分割面と直交する方向
に突出して設けられ、また2分割された部材の対向する
一方の縁は互いに噛合する凹凸部26c,26cが設け
られる。そして、この一対の部材26a,26aからな
る内管部材26全体を両側から把持できるように、軸と
平行な揺動軸28により蝶番状に開閉自在に2分割され
た一対の部材30a,30b,30bからなる外管部材
30が形成される。すなわち、内管部材26と外管部材
30により二重管構造が形成される。そして、外管部材
30を形成する一対の一方の部材30aは一体である
が、他方の部材30b,30bは軸方向に半分に分割さ
れる。さらに、外管部材30を形成する一対の部材30
a,30b,30bの軸方向の両端部は内管部材26の
外径とほぼ同じ内径の小径部30c,30c…が形成さ
れ、中央部には内管部材26の外径より大きな径で一部
の内周壁30d,30dが形成され、この内周壁30
d,30dと内管部材26との間に隙間部32が設けら
れる。また、外管部材30の軸方向の両端面には内管部
材26のフランジ状突起部26b,26b…が嵌合挿入
される凹部30e,30e…が設けられる。さらに、外
管部材30には、隙間部32に達するスリット30fが
軸回りに形成される。具体的には、外管部材30を形成
する一方の部材30aには中央にスリット30fを設
け、他方の部材30b,30bには軸方向に半分に分割
された分割面の縁の一部が切り欠かれて連接したときに
スリット30fとなるように形成される。そしてさら
に、外管部材30の一方の部材30aには、揺動軸28
とは略反対側に一対の突起30g,30gを2組み設
け、軸と平行なピン34,34により締付けボルト3
6,36の一端が揺動自在に連結される。そしてまた、
他方の部材30bには、同様に突起30h,30hが突
設され、締付けボルト36,36が揺動して挿入される
ように、その先端部からU字状の溝30i,30iが設
けられる。かかる内管部材26と外管部材30等により
ルーズ用クランプ本体22が形成される。Next, the structure of the loose conductor gripping portion 20 for the spacer of the present invention will be described. An inner pipe member 26 is formed which is composed of a pair of members 26a, 26a in which a tubular body is substantially divided into two in a plane including an axis so that the element conductor 16 can be grasped from both sides. Flange-shaped protrusions 26b, 26b ... Are provided at both ends of the inner pipe member 26 so as to project in a direction orthogonal to the split surface, and one edge of the two split members facing each other engages with each other. 26c and 26c are provided. Then, a pair of members 30a, 30b, which are hingedly openable and closable by a swing shaft 28 parallel to the shaft, so that the entire inner pipe member 26 composed of the pair of members 26a, 26a can be grasped from both sides, The outer tube member 30 composed of 30b is formed. That is, the inner pipe member 26 and the outer pipe member 30 form a double pipe structure. The pair of one member 30a forming the outer pipe member 30 is integral, but the other member 30b, 30b is axially divided in half. Further, a pair of members 30 forming the outer tube member 30.
Small-diameter portions 30c, 30c having an inner diameter substantially the same as the outer diameter of the inner pipe member 26 are formed at both axial ends of a, 30b, 30b, and the central portion has a diameter larger than the outer diameter of the inner pipe member 26. Inner peripheral walls 30d, 30d of the portion are formed, and the inner peripheral wall 30
A gap portion 32 is provided between d and 30d and the inner pipe member 26. Further, recesses 30e, 30e ... Into which the flange-like projections 26b, 26b of the inner pipe member 26 are fitted and inserted are provided on both end surfaces of the outer pipe member 30 in the axial direction. Further, the outer tube member 30 is formed with a slit 30f reaching the clearance 32 around the axis. Specifically, one member 30a forming the outer tube member 30 is provided with a slit 30f at the center, and the other members 30b, 30b are cut at a part of the edge of the divided surface divided in half in the axial direction. It is formed so as to become the slit 30f when it is cut and connected. Further, the swing shaft 28 is attached to one member 30a of the outer pipe member 30.
Two pairs of protrusions 30g, 30g are provided on the side substantially opposite to the tightening bolt 3 by the pins 34, 34 parallel to the shaft.
One ends of 6, 36 are swingably connected. and again,
The other member 30b is similarly provided with protrusions 30h, 30h, and U-shaped grooves 30i, 30i are provided from the tip end thereof so that the tightening bolts 36, 36 can be inserted by swinging. The inner tube member 26, the outer tube member 30 and the like form the loose clamp body 22.
【0021】また、連結部材24の一端部には、内管部
材26と外管部材30との間に形成される隙間部32を
軸回りに揺動できる頭部とスリット30fを貫通して移
動自在な首部とからなるT字状突起24aが形成され
る。また連結部材24の他端には一対の突起24b,2
4bが設けられ、適宜にスペーサ10の枠体12,12
に揺動自在に連結されるように形成される。Further, one end of the connecting member 24 is moved through a slit 30f and a head capable of swinging around a gap 32 formed between the inner pipe member 26 and the outer pipe member 30 about an axis. A T-shaped projection 24a formed of a free neck portion is formed. The other end of the connecting member 24 has a pair of protrusions 24b, 2
4b is provided, and the frame bodies 12 and 12 of the spacer 10 are appropriately provided.
It is formed so as to be swingably connected to.
【0022】かかる構成のルーズ導体把持部20におい
て、予め連結部材24がスペーサ10の枠体12,12
…に適宜に連結される。また、部材30a,30b,3
0bが蝶番状に組み付けられた外管部材30に、内管部
材26が止めピン40,40…により固定される。さら
に、外管部材30の突起30g,30g…には締付けボ
ルト36,36がピン34,34により揺動自在に連結
される。しかも、外管部材30と内管部材26の間の隙
間部32に連結部材24のT字状突起24aの頭部が挿
入されるとともに首部がスリット30fを貫通するよう
にされる。そして、外管部材30が閉じられ、締付けボ
ルト36,36が揺動されて溝30i,30iに挿入さ
れ、締付けボルト36,36の先端にスプリングロック
ナット38,38が螺合されて仮止めされる。なお、こ
のスプリングロックナット38,38は、特公平4−2
0090号公報に示されるごとく、所定の締付け圧力が
得られる公知のものである。In the loose conductor gripping portion 20 having such a structure, the connecting member 24 is previously provided with the frame bodies 12, 12 of the spacer 10.
Is appropriately connected to. Also, the members 30a, 30b, 3
The inner pipe member 26 is fixed to the outer pipe member 30 in which 0b is assembled in the shape of a hinge by the fixing pins 40, 40 .... Further, tightening bolts 36, 36 are swingably connected to the protrusions 30g, 30g, ... Of the outer tube member 30 by pins 34, 34. Moreover, the head portion of the T-shaped projection 24a of the connecting member 24 is inserted into the gap portion 32 between the outer pipe member 30 and the inner pipe member 26, and the neck portion penetrates the slit 30f. Then, the outer pipe member 30 is closed, the tightening bolts 36, 36 are swung and inserted into the grooves 30i, 30i, and the spring lock nuts 38, 38 are screwed onto the tips of the tightening bolts 36, 36 to be temporarily fixed. It The spring lock nuts 38 and 38 are
As shown in Japanese Patent Laid-Open No. 0090, it is a known one that can obtain a predetermined tightening pressure.
【0023】そして、素導体16をこのルーズ導体把持
部20で把持する際には、T字状突起24aが外管部材
30の軸方向に一体の部材30a側に形成される隙間部
32に位置するように、ルーズ用クランプ本体22を予
め揺動する。さらに、スプリングロックナット38,3
8を緩めて溝30i,30iから締付けボルト36,3
6を抜き取り、外管部材30を開けるようにする。この
とき、内管部材26も開けられることは勿論である。When the loose conductor gripping portion 20 grips the element conductor 16, the T-shaped projection 24a is positioned in the gap portion 32 formed on the side of the member 30a which is integral with the outer tube member 30 in the axial direction. As described above, the loose clamp main body 22 is swung in advance. Further, the spring lock nuts 38, 3
8 is loosened and tightening bolts 36, 3 from the grooves 30i, 30i
6 is pulled out so that the outer tube member 30 can be opened. At this time, of course, the inner tube member 26 can also be opened.
【0024】このような状態で、素導体16を外管部材
30で跨いで閉じるようにして、素導体16を内管部材
26で両側から把持させ、締付けボルト36,36を揺
動させて溝30i,30iに挿入し、スプリングロック
ナット38,38を締め付ければ、把持が完成する。な
お、内管部材26は、縁に設けられた凹凸部26c,2
6cが噛合することで、一対の部材が軸方向にずれるこ
とがない。In this state, the elemental conductor 16 is closed by straddling the outer tube member 30 so that the elemental conductor 16 is grasped by the inner tube member 26 from both sides, and the tightening bolts 36, 36 are swung to form a groove. Insertion into 30i, 30i and tightening the spring lock nuts 38, 38 completes gripping. In addition, the inner pipe member 26 has the uneven portions 26c, 2 provided on the edges.
The 6c meshes with each other, so that the pair of members does not shift in the axial direction.
【0025】かかる構成のルーズ導体把持部20は、連
結部材24のT字状突起24aが隙間部32とスリット
30f内で軸回りに揺動でき、図7(a)に示すごとく
素導体16は連結部材24に対して反時計回りに揺動で
き、また図7(b)に示すごとく時計回りにも揺動でき
る。本発明のルーズ導体把持部20にあっては、一例と
して揺動範囲が反時計回りに90°および時計回りに9
0°の180°の範囲で設定される。In the loose conductor gripping portion 20 having such a structure, the T-shaped projection 24a of the connecting member 24 can swing about the axis within the gap portion 32 and the slit 30f, and the element conductor 16 is formed as shown in FIG. 7 (a). It can be swung counterclockwise with respect to the connecting member 24, and can also be swung clockwise as shown in FIG. 7B. In the loose conductor grip portion 20 of the present invention, the swing range is, for example, 90 ° counterclockwise and 9 ° clockwise.
It is set in the range of 0 ° to 180 °.
【0026】このように、把持される素導体16が所定
の角度範囲で揺動自在であれば、自由に回転できる素導
体のごとく断面円形筒状の着氷雪は発生することができ
ず、それだけ着氷雪による荷重が軽減し得る。しかも、
ルーズ用クランプ本体22を連結部材24と連結した状
態のままで、素導体16を把持させることができ、作業
が容易である。これは、部品を脱落させる等の不具合が
なく、それだけ宙乗り作業等の高所作業等に適する。As described above, if the element conductor 16 to be grasped is swingable within a predetermined angle range, ice accretion having a circular cylindrical cross section cannot be generated like an element conductor which can be freely rotated, and that much. The load due to icing snow can be reduced. Moreover,
The element conductor 16 can be held while the loose clamp main body 22 is still connected to the connecting member 24, which facilitates the work. This is suitable for high-altitude work such as aerial riding work, since there are no problems such as dropping parts.
【0027】さらに、本発明のスペーサ10を偶数本の
送電線が架設されてなる架空送電線路に設けてギャロッ
ピング振動を防止する構造を説明する。図8に示すごと
く、送電線の1径間内に複数個のスペーサ10,10…
が設けられる。しかも、線路方向を見て、スペーサ10
の枠体12の右の片側半分に設けられた全ての導体把持
部14,14で、右の片側半分の送電線42,42が固
定把持され、左の片側半分に設けられた全てのルーズ導
体把持部20,20で、左の片側半分の送電線42,4
2が軸回りに所定角度範囲で軸回りに揺動自在に把持さ
れる。ここで、スペーサ10,10…は、左右がバラン
スした重量であり、スペーサ10,10…を設けること
により送電線42,42…全体を捩じって回転させるご
とき力は作用しない。なお、図8および図9の簡略図に
おいて、黒丸は送電線42を固定把持する導体把持部1
4を示し、白丸は送電線42を揺動自在に把持するルー
ズ導体把持部20を示す。Further, a structure for preventing galloping vibration by providing the spacer 10 of the present invention on an overhead power transmission line in which an even number of power transmission lines are installed will be described. As shown in FIG. 8, a plurality of spacers 10, 10 ...
Is provided. Moreover, looking at the line direction, the spacer 10
All the conductor holding portions 14, 14 provided on the right half of the frame body 12 of the frame 12 hold the power transmission lines 42, 42 of the right half on one side, and all the loose conductors provided on the left half of the conductor. With the grips 20 and 20, the transmission lines 42 and 4 on the left half
2 is gripped so as to be swingable around the axis within a predetermined angle range around the axis. Here, the spacers 10, 10, ... Have a balanced weight on the left and right, and by providing the spacers 10, 10, ... No force acts such as twisting and rotating the entire transmission lines 42, 42. Note that, in the simplified diagrams of FIGS. 8 and 9, black circles are conductor gripping portions 1 that grip the power transmission line 42 in a fixed manner.
4 indicates a loose conductor gripping portion 20 that grips the power transmission line 42 in a swingable manner.
【0028】ところで、図9に示すごとく、線路方向を
見て右側から風が吹き付けるとするならば、多数本の送
電線からなる架空送電線路は全体として、上下動の振動
を生じるとともに、上昇運動の際に送電線路全体として
時計回りに捩じられ下降運動の際に反時計回りに捩じら
れることが風洞実験で知られている。そして、それぞれ
の送電線の捩じれ剛性が同じであると、それぞれの送電
線の固有振動数が一致し、送電線路全体の回転運動周期
と上下動の振動周期が同期する場合が生じ、この同期に
よって上下動の振幅が増大されることが知られている。
また、多数本の送電線からなる架空送電線路に比べて単
導体の回転運動周期は長く、単導体にあっては上下動の
振動周期に比べて回転運動周期が長いために同期するこ
とが少なく、ギャロッピング振動を生じにくいことも知
られている。By the way, as shown in FIG. 9, if wind blows from the right side when looking at the line direction, the overhead power transmission line composed of a large number of power transmission lines as a whole produces vertical vibrations and ascends. It is known from a wind tunnel experiment that the entire transmission line is twisted clockwise during the above-mentioned case and is twisted counterclockwise during the downward movement. If the torsional rigidity of each power transmission line is the same, the natural frequency of each power transmission line may match, and the rotational movement cycle of the entire transmission line and the vibration cycle of vertical movement may be synchronized. It is known that the amplitude of vertical movement is increased.
In addition, the rotation cycle of a single conductor is longer than that of an overhead power transmission line composed of a large number of power transmission lines, and the rotation cycle of a single conductor is longer than the oscillation cycle of vertical movement, so synchronization is less likely to occur. It is also known that galloping vibration is unlikely to occur.
【0029】そこで、本発明のギャロッピング振動を防
止した架空送電線路にあっては、図8および図9に示す
ごとく、一方の片側半分の送電線42,42を固定把持
し、他方の片側半分の送電線42,42を揺動自在に把
持することで、一方の片側の送電線42,42…と他方
の片側の送電線42,42の捩じれ剛性を大きく相違さ
せ、左と右の送電線42,42…における回転運動周期
を大きく相違させられるので、送電線路全体としての回
転運動周期が大幅に乱される。しかも、1径間の長さ方
向全体にわたって、左右の送電線42,42…で回転運
動周期が相違するので、径間全体でのギャロッピング振
動を抑制する効果が大きい。Therefore, in the overhead power transmission line according to the present invention in which galloping vibration is prevented, as shown in FIGS. 8 and 9, the power transmission lines 42, 42 of one half of one side are fixedly gripped and the half of the other half of the other side is fixed. By swingably gripping the power transmission lines 42, 42, the torsional rigidity of the power transmission lines 42, 42 on one side and the power transmission lines 42, 42 on the other side are greatly different, and the left and right power transmission lines 42 are , 42 ..., The rotational movement cycle of the power transmission line can be greatly disturbed because the rotational movement cycles of the transmission lines 42, 42 ... Moreover, since the left and right power transmission lines 42, 42 ... Have different rotational movement cycles over the entire span, the effect of suppressing galloping vibration over the entire span is great.
【0030】発明者らによる以下のごとき実験の結果か
らも本発明の上記効果が期待できる。実験は、4導体に
おいて片側半分を固定把持し他方の片側半分を軸回りに
揺動自在に把持した本発明のギャロッピング振動を防止
した架空電線路と、4導体においていずれも固定把持し
た従来のものとを比較し、4導体の回転方向における回
転角の対数減衰率を測定した。試験条件で、架空電線路
の径間は80mであり、この径間内にスペーサを1つ取
り付けたものと2つ取り付けたもので測定された。ま
た、電線はACSR410mm2であり、張力は20%
U.T.Sである。測定結果は、本発明のスペーサを1
つ取り付けたものの対数減衰率は0.0208であり、
スペーサを2つ取り付けたものの対数減衰率は0.04
05であった。これに対して、4導体が固定把持された
従来のものでスペーサを1つ取り付けたものの対数減衰
率は0.0140であり、スペーサを2つ取り付けたも
のの対数減衰率は0.0181であった。この実験結果
から、4導体を固定把持する従来のものに比べて、本発
明のものは対数減衰率が大きく、ギャロッピングの抑制
を期待できる。しかも、本発明にあっては、スペーサが
1つのものに対して2つのものの対数減衰率の増大が著
しく、本発明にあってはスペーサの個数を増やすことで
一層の抑制効果が期待し得る。The above effects of the present invention can be expected from the results of the following experiments conducted by the inventors. In the experiment, an aerial electric line according to the present invention, in which one half of the four conductors is fixedly gripped and the other half is swingably held around an axis, and a conventional one in which all four conductors are fixedly gripped And the logarithmic attenuation rate of the rotation angle in the rotation direction of the four conductors were measured. Under the test conditions, the span of the overhead electric line was 80 m, and the measurements were made with one spacer and two spacers mounted in this span. Also, the electric wire is ACSR 410 mm 2 , and the tension is 20%.
U. T. S. The measurement result shows that the spacer of the present invention is 1
The logarithmic decay rate of the one attached is 0.0208,
The logarithmic decay rate of two spacers is 0.04
It was 05. On the other hand, the logarithmic decrement of the conventional one in which four conductors were fixed and held and one spacer was attached was 0.0140, and the logarithmic decrement of two spacers was 0.0181. . From this experimental result, the present invention has a larger logarithmic decrement than the conventional one in which the four conductors are fixedly gripped, and the galloping can be suppressed. In addition, in the present invention, the logarithmic attenuation rate of two spacers is remarkably increased with respect to one spacer, and in the present invention, further suppressing effect can be expected by increasing the number of spacers.
【0031】上記実施例では、架空送電線路が4本の送
電線42,42…からなるが、2本以上の偶数本の送電
線42,42からなる架空送電線路に適用できることは
勿論であり、また線路方向を見て左右いずれの片側半分
が固定把持され他方の片側半分が軸回りに揺動自在に把
持されても良い。そして、素導体16を固定把持する導
体把持部は、いかなる構造であっても良い。さらに、本
発明のスペーサおよびギャロッピング振動を防止した架
空送電線路にあっては、ルーズ用クランプ本体22を連
結部材24に揺動自在に配設する構造は、上記実施例に
限られるものでない。In the above embodiment, the overhead power transmission line is composed of four power transmission lines 42, 42 ... However, it is needless to say that the overhead power transmission line is applicable to the overhead power transmission line composed of two or more even number power transmission lines 42, 42. In addition, one of the left and right half sides may be fixedly gripped and the other half may be swingably gripped around an axis as viewed in the line direction. The conductor gripping portion that grips and holds the element conductor 16 may have any structure. Further, in the spacer and the overhead power transmission line of the present invention in which galloping vibration is prevented, the structure in which the loose clamp main body 22 is swingably disposed on the connecting member 24 is not limited to the above-described embodiment.
【0032】[0032]
【発明の効果】以上説明したように、本発明のスペーサ
とスペーサ用のルーズ導体把持部およびギャロッピング
振動を防止した架空送電線路は構成されているので、以
下のごとき格別な効果を奏する。As described above, since the spacer of the present invention, the loose conductor gripping portion for the spacer, and the overhead power transmission line in which galloping vibration is prevented are configured, the following special effects are achieved.
【0033】請求項1記載のスペーサにあっては、スペ
ーサの片側半分にある素導体を予め設定された角度範囲
で揺動自在に把持するので、断面円形筒状の着氷雪が発
生せず、この着氷雪の発達による過大な重量が素導体に
加わることがなく、断線等の虞がない。そして、一方の
片側半分にある素導体を揺動自在に把持し、他方の片側
半分にある素導体を固定把持するので、一方の片側半分
の素導体の捩じれ剛性と他方の片側半分にある素導体の
捩じれ剛性とが相違し、それぞれの素導体の回転運動周
期が相違し、ギャロッピング振動の抑制に貢献し得る。In the spacer according to the first aspect, since the element conductors on one half of the spacer are gripped so as to be swingable within a preset angle range, snow accretion with a circular cylindrical section does not occur, An excessive weight is not added to the element conductor due to the development of this icing snow, and there is no fear of disconnection. Then, since the element conductor in one half on one side is swingably held and the element conductor on the other half on one side is fixedly grasped, the torsional rigidity of the element conductor on one half on one side and the element rigidity on the other half on the other side are held. The torsional rigidity of the conductor is different, and the rotational motion cycle of each elemental conductor is different, which can contribute to the suppression of galloping vibration.
【0034】また、請求項2記載のスペーサ用のルーズ
導体把持部にあっては、素導体は軸回りに所定の角度範
囲で揺動できるが回転できないので、断面円形筒状の着
氷雪の発生を防止できる。In the loose conductor gripping portion for a spacer according to the second aspect of the invention, since the element conductor can swing about the axis within a predetermined angle range but cannot rotate, ice accretion with a circular cylindrical section occurs. Can be prevented.
【0035】さらに、請求項3記載のスペーサ用のルー
ズ導体把持部にあっては、ルーズ用クランプ本体を連結
部材に連結したままで、素導体を把持することができ、
素導体を把持させる作業が容易である。また、構成部品
を分離しなくても作業ができるので、それだけ部品を脱
落させる等の不具合がなく、宙乗り作業等の高所作業に
好適である。Further, in the loose conductor gripping portion for the spacer according to the third aspect, the element conductor can be gripped with the loose clamp main body being connected to the connecting member.
The work of gripping the element conductor is easy. In addition, since the work can be performed without separating the constituent parts, there is no problem such as dropping the parts correspondingly, which is suitable for aerial work such as aerial work.
【0036】また、請求項4記載のギャロッピング振動
を防止した架空送電線路では、偶数本の一方の片側半分
の送電線が揺動自在に把持され、他方の片側半分の送電
線が固定把持されるので、一方の片側半分の送電線の捩
じれ剛性と他方の片側半分の送電線の捩じれ剛性が相違
して固有振動数が大きく相違し、それぞれのグループの
回転運動周期が相違して、架空送電線路全体としての回
転運動周期が大きく乱され、ギャロッピング振動が抑制
される。しかも、一方の片側半分の送電線は揺動し得る
が回転できず、断面円形筒状の着氷雪が生じず、着氷雪
による過大な荷重による断線を生じない。Further, in the overhead power transmission line according to the fourth aspect of the present invention in which galloping vibration is prevented, one half of the even number of transmission lines is swingably held, and the other half of the transmission line is fixedly held. Therefore, the torsional rigidity of the transmission line of one half on one side and the torsional rigidity of the transmission line on the other half of the other side are different, and the natural frequencies are greatly different. The rotation motion cycle as a whole is greatly disturbed, and galloping vibration is suppressed. Moreover, the power transmission line of one half on one side can swing, but cannot rotate, so that snow accretion with a circular cylindrical cross section does not occur and disconnection due to an excessive load due to ice accretion does not occur.
【0037】さらに、請求項5記載のギャロッピング振
動を防止した架空送電線路にあっては、1つの径間で、
一方の片側半分の送電線が揺動自在に把持され他方の片
側半分の送電線が固定把持されるので、1つの径間全体
で固有振動の相違する送電線の2つのグループにより径
間全体としての回転運動周期が効果的に乱され、ギャロ
ッピング振動の抑制がなされる。Further, in the overhead power transmission line which prevents galloping vibration according to claim 5, in one span,
Since one half of the power transmission line is swingably held and the other half of the transmission line is fixedly gripped, two groups of transmission lines whose natural vibrations are different in one span are used as a whole span. The rotational movement cycle of is effectively disturbed, and galloping vibration is suppressed.
【図1】本発明のスペーサの一実施例の一部を切り欠い
た正面図である。FIG. 1 is a partially cutaway front view of an embodiment of a spacer of the present invention.
【図2】(a)は、図1のA矢視図であり、(b)は、
図1のB矢視図である。2 (a) is a view taken in the direction of arrow A in FIG. 1, and FIG. 2 (b) is
It is a B arrow line view of FIG.
【図3】図1のC−C断面矢視拡大図である。FIG. 3 is an enlarged view taken along the line CC of FIG.
【図4】図1に用いるスペーサ用のルーズ導体把持部の
分解斜視図である。FIG. 4 is an exploded perspective view of a loose conductor grip for a spacer used in FIG.
【図5】図4の組み立て外観斜視図である。5 is a perspective view of the assembly appearance of FIG. 4. FIG.
【図6】図4に示される外管部材の一部の構成部品を異
なる方向から見た外観斜視図である。6 is an external perspective view of a part of components of the outer tube member shown in FIG. 4 viewed from different directions.
【図7】(a)は、素導体が反時計回りに90°揺動し
た状態を示すスペーサ用のルーズ導体把持部の縦断面図
であり、(b)は、素導体が時計回りに90°揺動した
状態を示すスペーサ用のルーズ導体把持部の縦断面図で
ある。FIG. 7A is a vertical cross-sectional view of a loose conductor gripping portion for a spacer showing a state in which an element conductor is swung 90 ° counterclockwise, and FIG. FIG. 6 is a vertical cross-sectional view of a loose conductor gripping portion for a spacer, which shows a swinging state.
【図8】架空送電線路の1径間に複数のスペーサを設け
た簡略斜視図である。FIG. 8 is a simplified perspective view in which a plurality of spacers are provided in one diameter of the overhead power transmission line.
【図9】架空送電線路のギャロッピング振動による上下
運動軌跡および送電線の回転を説明する簡略図である。FIG. 9 is a simplified diagram for explaining the vertical movement locus and the rotation of the power transmission line due to galloping vibration of the overhead power transmission line.
10 スペーサ 12 枠体 14 導体把持部 16 素導体 20 ルーズ導体把持部 22 ルーズクランプ用本体 24 連結部材 24a T字状突起 26 内管部材 28 揺動軸 30 外管部材 30f スリット 32 隙間部 42 送電線 DESCRIPTION OF SYMBOLS 10 Spacer 12 Frame body 14 Conductor gripping part 16 Elementary conductor 20 Loose conductor gripping part 22 Loose clamp main body 24 Connecting member 24a T-shaped projection 26 Inner tube member 28 Swing shaft 30 Outer tube member 30f Slit 32 Gap 42 42 Transmission line
Claims (5)
称軸のいずれか一方の片側に設けられた導体把持部が素
導体を固定把持し、他方の片側に設けられたルーズ導体
把持部が、素導体をルーズ用クランプ本体で把持し、こ
のルーズ用クランプ本体を、把持した前記素導体の軸回
りに予め設定された角度範囲で揺動自在に前記枠体に連
結して構成したことを特徴とするスペーサ。1. A loose conductor provided on one side of an axis of symmetry of a frame body, and a conductor holding portion provided on one side of the axis of symmetry fixedly holds the element conductor, and a loose conductor provided on the other side. The gripping part is configured by gripping the element conductor with the loose clamp main body and swingably connecting the loose clamp body to the frame body around an axis of the grasped element conductor within a preset angle range. A spacer characterized in that
割されるとともに閉じて前記素導体を把持するルーズ用
クランプ本体を、把持した前記素導体の軸回りに予め設
定された角度範囲で揺動自在に連結部材に配設し、この
連結部材をスペーサの枠体に連結するように構成したこ
とを特徴とするスペーサ用のルーズ導体把持部。2. A loose clamp body which is opened / closed by an oscillating shaft parallel to the element conductor and which is opened and closed and holds the element conductor by a preset angle around the axis of the element conductor gripped. A loose conductor gripping portion for a spacer, characterized in that the loose conductor gripping portion is arranged so as to be swingable within a range and is configured to be coupled to the frame body of the spacer.
把持部において、前記ルーズ用クランプ本体を、前記素
導体を両側から把持するように2分割された内管部材
と、この内管部材が固定されるとともに前記揺動軸で開
閉自在に2分割された外管部材との二重管構造とすると
ともに、前記内管部材と前記外管部材との間の少なくと
も一部に隙間部を形成し、前記外管部材に前記隙間部に
達するスリットを軸回りに形成し、前記連結部材に前記
隙間部に頭部が挿入され前記スリットに首部が貫通され
るT字状突起を設け、このT字状突起を前記隙間部とス
リット内を軸回りに揺動自在として、前記ルーズ用クラ
ンプ本体を、把持した前記素導体の軸回りに揺動自在に
前記連結部材に配設したことを特徴とするスペーサ用の
ルーズ導体把持部。3. The loose conductor gripping portion for a spacer according to claim 2, wherein the loose clamp main body is divided into two parts so as to grip the element conductor from both sides, and the inner pipe member is divided into two parts. The outer pipe member is fixed and has a double pipe structure that is divided into two parts that can be opened and closed by the swing shaft, and a gap is formed in at least a part between the inner pipe member and the outer pipe member. Then, a slit reaching the gap is formed around the axis in the outer tube member, and a T-shaped protrusion is provided in the connecting member such that a head is inserted into the gap and the neck is passed through the slit. The character-shaped projection is swingable around the gap and the slit about an axis, and the loose clamp body is disposed on the connecting member so as to swing about the axis of the gripped element conductor. Loose conductor grip for spacers.
送電線路にスペーサを設け、線路方向を見て、前記スペ
ーサの枠体の左または右の片側半分に設けた導体把持部
で片側半分の送電線を固定把持し、他方の片側半分に設
けたルーズ導体把持部で、他方の片側半分の送電線をル
ーズ用クランプ本体で把持し、このルーズ用クランプ本
体を、把持した前記送電線の軸回りに予め設定された角
度範囲で揺動自在に連結部材に配設し、この連結部材を
前記枠体に連結し、前記架空送電線路の一方の片側半分
の送電線と他方の片側半分の送電線の捩じれ剛性が相違
するように構成したことを特徴とするギャロッピング振
動を防止した架空送電線路。4. A spacer is provided on an overhead power transmission line composed of even numbered transmission lines, and a conductor gripping portion provided on one half on the left side or the right side of the frame of the spacer is a half side on one side when viewed in the line direction. Of the power transmission line of the other hand, the loose conductor gripping portion provided on the other half of the other side holds the power transmission line of the other half on the other side by the loose clamp body, The connecting member is disposed on the connecting member so as to be swingable about an axis within a preset angle range, and the connecting member is connected to the frame body. An overhead power transmission line that prevents galloping vibration, characterized in that the torsional rigidity of the power transmission line is different.
送電線路の1つの径間に複数個のスペーサを設け、線路
方向を見て、これらの前記スペーサの枠体の左または右
の同一側の片側半分に設けられた全ての導体把持部で片
側半分の送電線を固定把持し、他方の側の片側半分に設
けられた全てのルーズ導体把持部で他方の片側半分の送
電線をルーズ用クランプ本体で把持し、これらのルーズ
用クランプ本体を前記素導体の軸回りに予め設定された
角度範囲で揺動自在に連結部材に配設し、この連結部材
を前記枠体に連結し、前記架空送電線路の1つの径間で
線路方向を見て片側半分の送電線と他方の片側半分の送
電線の捩じれ剛性が相違するように構成したことを特徴
とするギャロッピング振動を防止した架空送電線路。5. A plurality of spacers are provided in one diameter of an overhead power transmission line composed of an even number of power transmission lines installed, and when viewed in the line direction, the same frame on the left or right of the frame body of these spacers is provided. One side half of one side fixedly holds the transmission line of one side half, and all loose side grips provided on the other side half of the conductor loosens the transmission line of the other side half Gripping with the clamp body for use, the loose clamp body is swingably arranged around the axis of the element conductor within a preset angle range on the connecting member, and the connecting member is connected to the frame body, An overhead power transmission preventing galloping vibration, characterized in that the torsional rigidity of one half of the power transmission line is different from that of the other half of the power transmission line as viewed in the line direction in one span of the overhead power transmission line. line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6156560A JP3056042B2 (en) | 1994-06-15 | 1994-06-15 | Spacer and loose conductor gripper for spacer and overhead transmission line with galloping vibration prevented |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6156560A JP3056042B2 (en) | 1994-06-15 | 1994-06-15 | Spacer and loose conductor gripper for spacer and overhead transmission line with galloping vibration prevented |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH089544A true JPH089544A (en) | 1996-01-12 |
JP3056042B2 JP3056042B2 (en) | 2000-06-26 |
Family
ID=15630467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6156560A Expired - Lifetime JP3056042B2 (en) | 1994-06-15 | 1994-06-15 | Spacer and loose conductor gripper for spacer and overhead transmission line with galloping vibration prevented |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3056042B2 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005261030A (en) * | 2004-03-10 | 2005-09-22 | Asahi Electric Works Ltd | Loose spacer for multiple conductors, phase spacer, method of mounting phase spacer, and jumper structure of multiple conductor transmission line |
CN101882773A (en) * | 2010-06-23 | 2010-11-10 | 南京线路器材厂 | Spacer wire chunk capable of maintaining torque characteristic in ice coating |
CN102214903A (en) * | 2010-04-04 | 2011-10-12 | 江苏天南电力器材有限公司 | Anti-oscillation spacer |
JP2011211762A (en) * | 2010-03-27 | 2011-10-20 | Viscas Corp | Attaching structure of loose spacer, and loose spacer suitable to the same |
CN102545122A (en) * | 2010-12-27 | 2012-07-04 | 旭电机株式会社 | Frame for multi-conductor spacer |
JP2012257373A (en) * | 2011-06-08 | 2012-12-27 | Asahi Electric Works Ltd | Attachment of loose spacer and attachment technique of the same |
CN103208768A (en) * | 2012-03-28 | 2013-07-17 | 国家电网公司 | Method for suppressing waving of extra-high voltage bundled conductor |
JP2013223292A (en) * | 2012-04-13 | 2013-10-28 | Furukawa Electric Power Systems Co Ltd | Interphase spacer |
JP2013247835A (en) * | 2012-05-29 | 2013-12-09 | Furukawa Electric Power Systems Co Ltd | Loose clamp of loose spacer |
CN103606872A (en) * | 2013-11-18 | 2014-02-26 | 清华大学 | Anti-corona six-bundle conductor spacer |
CN106678501A (en) * | 2017-01-11 | 2017-05-17 | 东莞市圣荣自动化科技有限公司 | Fixing mechanism of bottom plate of deicing device on surface layer of power equipment |
JP2018174598A (en) * | 2017-03-31 | 2018-11-08 | 古河電工パワーシステムズ株式会社 | Damper for overhead wire |
CN109742706A (en) * | 2019-03-08 | 2019-05-10 | 江西扬帆实业有限公司 | A kind of cable and cable connecting arrangement with anti-fracture function |
JP2021035271A (en) * | 2019-08-28 | 2021-03-01 | 古河電工パワーシステムズ株式会社 | Spacer for overhead power transmission line |
EP4047767A1 (en) * | 2021-02-22 | 2022-08-24 | Furukawa Electric Power Systems Co., Ltd. | Overhead transmission line spacer |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5211333B2 (en) * | 2009-01-29 | 2013-06-12 | 古河電工パワーシステムズ株式会社 | Spacer wear amount prediction method, system thereof, and test apparatus |
CN101931198A (en) * | 2010-08-24 | 2010-12-29 | 中国电力科学研究院 | Spacer rod type anti-oscillation device with preformed and rotary wire clamps |
CN111987679B (en) * | 2020-09-03 | 2021-05-14 | 广东电网有限责任公司东莞供电局 | Detection processing device for icing of power transmission line |
-
1994
- 1994-06-15 JP JP6156560A patent/JP3056042B2/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005261030A (en) * | 2004-03-10 | 2005-09-22 | Asahi Electric Works Ltd | Loose spacer for multiple conductors, phase spacer, method of mounting phase spacer, and jumper structure of multiple conductor transmission line |
JP2011211762A (en) * | 2010-03-27 | 2011-10-20 | Viscas Corp | Attaching structure of loose spacer, and loose spacer suitable to the same |
CN102214903A (en) * | 2010-04-04 | 2011-10-12 | 江苏天南电力器材有限公司 | Anti-oscillation spacer |
CN101882773A (en) * | 2010-06-23 | 2010-11-10 | 南京线路器材厂 | Spacer wire chunk capable of maintaining torque characteristic in ice coating |
CN102545122A (en) * | 2010-12-27 | 2012-07-04 | 旭电机株式会社 | Frame for multi-conductor spacer |
JP2012257373A (en) * | 2011-06-08 | 2012-12-27 | Asahi Electric Works Ltd | Attachment of loose spacer and attachment technique of the same |
CN103208768A (en) * | 2012-03-28 | 2013-07-17 | 国家电网公司 | Method for suppressing waving of extra-high voltage bundled conductor |
JP2013223292A (en) * | 2012-04-13 | 2013-10-28 | Furukawa Electric Power Systems Co Ltd | Interphase spacer |
JP2013247835A (en) * | 2012-05-29 | 2013-12-09 | Furukawa Electric Power Systems Co Ltd | Loose clamp of loose spacer |
CN103606872A (en) * | 2013-11-18 | 2014-02-26 | 清华大学 | Anti-corona six-bundle conductor spacer |
CN106678501A (en) * | 2017-01-11 | 2017-05-17 | 东莞市圣荣自动化科技有限公司 | Fixing mechanism of bottom plate of deicing device on surface layer of power equipment |
JP2018174598A (en) * | 2017-03-31 | 2018-11-08 | 古河電工パワーシステムズ株式会社 | Damper for overhead wire |
CN109742706A (en) * | 2019-03-08 | 2019-05-10 | 江西扬帆实业有限公司 | A kind of cable and cable connecting arrangement with anti-fracture function |
JP2021035271A (en) * | 2019-08-28 | 2021-03-01 | 古河電工パワーシステムズ株式会社 | Spacer for overhead power transmission line |
US11855434B2 (en) | 2019-08-28 | 2023-12-26 | Furukawa Electric Power Systems Co., Ltd. | Overhead transmission line spacer |
EP4047767A1 (en) * | 2021-02-22 | 2022-08-24 | Furukawa Electric Power Systems Co., Ltd. | Overhead transmission line spacer |
Also Published As
Publication number | Publication date |
---|---|
JP3056042B2 (en) | 2000-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH089544A (en) | Spacer, conductor loosely grasping part spacer and aerial transmission line prevented from galloping vibration | |
JP4822749B2 (en) | Loose wire gripping part | |
JP2008067515A (en) | Spacer for electric wire, and electric wire overhead wiring structure | |
JPS6030175B2 (en) | vibration damping device | |
CA1121478A (en) | Rigid one-piece construction spacer damper with resiliently pivoted arms | |
JP2008035672A (en) | Electric wire clamping unit, electric wire stringing structure, and spacer for electric wire | |
JP2006223064A (en) | Device for preventing snow accretion and torsion, and method for preventing snow accretion and galloping | |
US3885086A (en) | Spacer-damper assembly | |
CN104137367B (en) | Damping conductor spacer for four conductor wire harness | |
CN101425667A (en) | Cable clip rotary type anti-bouncing spacer | |
US3941914A (en) | Damper for an overhead transmission line | |
JP2010178569A (en) | Conductor grip, spacer, and overhead line | |
CA1061424A (en) | Spacing devices for overhead transmission lines | |
JP4334377B2 (en) | Loose spacer for multiconductor, interphase spacer, mounting method of interphase spacer, and jumper structure of multiconductor transmission line | |
JP2007006624A (en) | Stringing structure of transmission line | |
US2999894A (en) | Apparatus for suppressing galloping conductors | |
JP5823237B2 (en) | Multi-conductor spacer gripping unit | |
JP2507750B2 (en) | Gear-roping prevention method for multi-conductor transmission lines | |
SU772506A3 (en) | Cross bar for splitter phase wires of overhead electric line | |
JPS5970115A (en) | Spacer damper for multiconductor for wire line | |
CN217741266U (en) | Combined four-split spacing rod | |
JPH08126179A (en) | Mounting apparatus for interphase spacer in multiple conductor transmission line | |
JPH0323787Y2 (en) | ||
CN211398237U (en) | Connection box of release mechanism | |
Hearnshaw | Transmission Damper Reduces Damage to Transmission Lines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080414 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090414 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090414 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100414 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110414 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130414 Year of fee payment: 13 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130414 Year of fee payment: 13 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130414 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140414 Year of fee payment: 14 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |