JPH07135726A - Jumper device for short length aerial transmission line - Google Patents
Jumper device for short length aerial transmission lineInfo
- Publication number
- JPH07135726A JPH07135726A JP5289787A JP28978793A JPH07135726A JP H07135726 A JPH07135726 A JP H07135726A JP 5289787 A JP5289787 A JP 5289787A JP 28978793 A JP28978793 A JP 28978793A JP H07135726 A JPH07135726 A JP H07135726A
- Authority
- JP
- Japan
- Prior art keywords
- steel tower
- insulator
- frp
- tower arm
- jumper
- 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
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、狭線間架空送電線用の
ジャンパー装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumper device for an overhead transmission line between narrow lines.
【０００２】[0002]
【従来の技術】最近、架空送電線の用地取得難や用地価
格高騰などの関係から、用地幅が狭くて済む狭線間架空
送電線が検討されている。従来の狭線間架空送電線の基
本構成を図１０および図１１に示す。図において、１は
架空送電線の本線、３はジャンパー線、５は鉄塔幹体、
７は鉄塔アーム、９は耐張碍子連、１１はＶ型碍子であ
る。2. Description of the Related Art Recently, narrow-line overhead power transmission lines, which require only a small land width, have been studied because of difficulty in obtaining land for overhead power transmission lines and soaring land prices. The basic configuration of a conventional overhead transmission line between narrow lines is shown in FIGS. 10 and 11. In the figure, 1 is the main line of an overhead power transmission line, 3 is a jumper line, 5 is a tower trunk,
7 is a steel tower arm, 9 is a tension insulator string, and 11 is a V-shaped insulator.
【０００３】すなわち狭線間架空送電線は、耐張碍子連
９を鉄塔アーム７の付け根付近に取り付けることにより
隣合う本線１の間隔Ｄを狭くしたものである。しかしこ
の構造ではジャンパー線３を耐張碍子連９の真下に配置
すると、ジャンパー線３と鉄塔幹体５との絶縁間隔が確
保できない。そこで従来の狭線間架空送電線用のジャン
パー装置は、鉄塔アーム７の下にＶ型碍子１１を取り付
け、このＶ型碍子１１の下端でジャンパー線３の中間部
を、上から見てジャンパー線３の中間部が両端部より外
側に位置するように支持し、これによってジャンパー線
３と鉄塔幹体５との絶縁間隔を保つようにしている。That is, in the overhead transmission line between narrow lines, the tension insulator string 9 is attached near the base of the steel tower arm 7 to reduce the distance D between the adjacent main lines 1. However, in this structure, if the jumper wire 3 is arranged directly below the tension insulator string 9, the insulation distance between the jumper wire 3 and the steel tower trunk 5 cannot be secured. Therefore, in a conventional jumper device for an overhead transmission line between narrow lines, a V-shaped insulator 11 is attached under a steel tower arm 7, and a lower end of the V-shaped insulator 11 is used to see an intermediate portion of the jumper wire 3 from above. The intermediate part of 3 is supported so as to be located outside the both ends, thereby maintaining the insulation distance between the jumper wire 3 and the steel tower trunk 5.
【０００４】Ｖ型碍子１１は中実ＳＰ（ステーションポ
スト）碍子または懸垂碍子をＶ型に組み合わせることに
より構成されている。このＶ型碍子１１はジャンパー線
３の横揺れおよび自重による移動を防止するためのもの
である。The V-shaped insulator 11 is constructed by combining a solid SP (station post) insulator or a suspended insulator with a V-shaped insulator. The V-shaped insulator 11 is for preventing the jumper wire 3 from rolling and moving due to its own weight.
【０００５】[0005]
【発明が解決しようとする課題】しかし従来の狭線間架
空送電線用ジャンパー装置には次のような欠点がある。 上端が鉄塔アーム長手方向に広がったＶ型碍子を使
用しているため、ジャンパー線と鉄塔幹体との絶縁間隔
を十分にとるためには鉄塔アームの長さを長くしなけれ
ばならない。１５４ｋＶ以上になると鉄塔アームの長さ
は長大になり、鉄塔が大型化する。 懸垂碍子を使用する場合は、風による線路方向の変
位を小さくするために下端にウェートを取り付ける必要
がある。懸垂碍子およびウェートの総重量がかなり大き
くなり、鉄塔が大型化する。 風に対する対策としては剛性の大きい中実ＳＰ碍子
を使用することが好ましいが、中実ＳＰ碍子は磁器製で
曲げ強度が小さいことから、地震により鉄塔が揺れる
と、自重とジャンパー線重量により破壊する危険性があ
る。特に２７５ｋＶ以上になると、中実ＳＰ碍子を３本
直列に接続して使用することになるが、このような長さ
になると、曲げ強度が不足し、使用は困難である。However, the conventional jumper device for overhead transmission lines between narrow lines has the following drawbacks. Since the V-shaped insulator whose upper end is widened in the longitudinal direction of the steel tower arm is used, the length of the steel tower arm must be increased in order to ensure a sufficient insulation distance between the jumper wire and the steel tower trunk. If the voltage exceeds 154 kV, the length of the steel tower arm becomes large, and the steel tower becomes large. When using a suspension insulator, it is necessary to attach a weight to the lower end in order to reduce the displacement in the track direction due to the wind. The total weight of the suspension insulator and the weight is considerably large, and the tower becomes large. As a countermeasure against wind, it is preferable to use a solid SP insulator with high rigidity, but since the solid SP insulator is made of porcelain and has a small bending strength, if the tower shakes due to an earthquake, it will be destroyed by its own weight and jumper wire weight. There is a risk. In particular, when the voltage is 275 kV or more, three solid SP insulators are connected and used in series. However, at such a length, the bending strength is insufficient and it is difficult to use.
【０００６】本発明の目的は、上記のような問題点に鑑
み、鉄塔アームの長さを短くできる狭線間架空送電線用
ジャンパー装置を提供することにある。In view of the above problems, an object of the present invention is to provide a jumper device for an overhead transmission line between narrow lines, which can shorten the length of a tower arm.
【０００７】[0007]
【課題を解決するための手段】この目的を達成する一つ
の手段は、鉄塔アームの耐張碍子連取り付け点より先端
側にＦＲＰ心入りポリマー碍子を下向きに取り付け、こ
のＦＲＰ心入りポリマー碍子の下端でジャンパー線の中
間部を、上から見てジャンパー線の中間部が両端部より
鉄塔アーム先端側に位置するように支持したことを特徴
とする（請求項１）。[Means for Solving the Problems] One means for achieving this object is to attach a polymer insulator with a FRP core downward to the tip side from the attachment point of a tension insulator insulator of a steel tower arm, and to attach the lower end of the polymer insulator with a FRP core. The intermediate portion of the jumper wire is supported so that the intermediate portion of the jumper wire is located closer to the tip end side of the steel tower arm than both ends when viewed from above (claim 1).
【０００８】上記目的を達成する他の手段は、ジャンパ
ー線の中間部を剛性導体で構成し、鉄塔アームの耐張碍
子連取り付け点より先端側に２本のＦＲＰ心入りポリマ
ー碍子を下向きに取り付け、この２本のＦＲＰ心入りポ
リマー碍子の下端の間隔を上端の間隔より大きくして、
その下端で前記剛性導体を、上から見て剛性導体がジャ
ンパー線の両端部より鉄塔アーム先端側に位置するよう
に支持したことを特徴とする（請求項２）。Another means for achieving the above object is to construct the intermediate part of the jumper wire with a rigid conductor, and attach two FRP core-filled polymer insulators downward to the tip end side from the tension insulator connection point of the steel tower arm. , The distance between the lower ends of these two FRP cored polymer insulators is made larger than the distance between the upper ends,
The rigid conductor is supported at its lower end so that the rigid conductor is located closer to the tip of the steel tower arm than both ends of the jumper wire when viewed from above (claim 2).
【０００９】上記目的を達成するさらに他の手段は、鉄
塔アームの下の鉄塔幹体の側面に、複数本のＦＲＰ心入
りポリマー碍子を、先端を連結しかつ基端の間隔を広げ
た状態で取り付け、そのポリマー碍子の先端連結部でジ
ャンパー線の中間部を、上から見てジャンパー線の中間
部が両端部より鉄塔アーム先端側に位置するように支持
したことを特徴とする（請求項３）。Still another means for achieving the above object is to provide a plurality of FRP core-filled polymer insulators on the side surface of the steel tower trunk under the steel tower arm, with the tips connected and the distance between the base ends widened. The polymer insulator is attached, and the intermediate portion of the jumper wire is supported by the tip connecting portion of the polymer insulator so that the intermediate portion of the jumper wire is located closer to the tip end side of the steel tower arm than both ends when viewed from above (claim 3). ).
【００１０】[0010]
【作用】本発明においては、鉄塔アームの下でジャンパ
ー線の中間部を支持する碍子としてＦＲＰ心入りポリマ
ー碍子を使用する。ＦＲＰ心入りポリマー碍子は、ＦＲ
Ｐ（繊維強化プラスチック）ロッドを中心に配置し、そ
のまわりにシリコンゴムやＥＰＤＭ（エチレン−プロピ
レン−ジエン三元共重合体）などのポリマーを多段かさ
形の碍子形状にモールド成形したものである。長さ３〜
６ｍ程度のものを１本ものとして製造することが可能で
ある。ＦＲＰ心入りポリマー碍子はこのような構造であ
るため中実ＳＰ碍子に比べると、曲げ破壊強度、引張強
度が極めて大きく、重量が極めて小さい。２７５ｋＶ設
計のＦＲＰ心入りポリマー碍子と中実ＳＰ碍子の性能を
比較すると次のとおりである。In the present invention, the FRP cored polymer insulator is used as the insulator for supporting the intermediate portion of the jumper wire under the steel tower arm. FRP cored polymer insulator is FR
A P (fiber reinforced plastic) rod is arranged at the center, and a polymer such as silicon rubber or EPDM (ethylene-propylene-diene terpolymer) is molded around the rod in a multi-tiered insulator shape. Length 3 ~
It is possible to manufacture one having a length of about 6 m. Since the FRP cored polymer insulator has such a structure, the flexural fracture strength and the tensile strength are extremely large and the weight is extremely small as compared with the solid SP insulator. The performances of the FRP cored polymer insulator of 275 kV design and the solid SP insulator are compared as follows.
【００１１】[0011]
【表１】 [Table 1]
【００１２】このように曲げ強度、引張強度が大きく、
しかも軽量なＦＲＰ心入りポリマー碍子を用いて、前記
のような構成でジャンパー線の中間部を支持すれば、鉄
塔アームの長さを短くでき、しかも鉄塔アームにかかる
荷重が軽減されるため、鉄塔を小型化することが可能と
なる。Thus, the bending strength and the tensile strength are large,
Moreover, by using a lightweight FRP core-filled polymer insulator and supporting the middle part of the jumper wire with the above-mentioned configuration, the length of the steel tower arm can be shortened and the load applied to the steel tower arm is reduced. Can be miniaturized.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面を参照して詳細
に説明する。図１ないし図９において、１は架空送電線
の本線、３はジャンパー線、５は鉄塔幹体、７は鉄塔ア
ーム、９は耐張碍子連、１３はＦＲＰ心入りポリマー碍
子、１５は支持金具である。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 9, 1 is a main line of an overhead power transmission line, 3 is a jumper wire, 5 is a steel tower trunk, 7 is a steel tower arm, 9 is a tension-resistant insulator string, 13 is a polymer insulator with FRP core, and 15 is a support metal fitting. Is.
【００１４】図１ないし図３は請求項１の発明の実施例
を示す。この狭線間架空送電線用ジャンパー装置では、
鉄塔アーム７の耐張碍子連取り付け点Ｐより先端側に、
２本のＦＲＰ心入りポリマー碍子１３が線路方向に間隔
をあけて下向きに取り付けられている。このＦＲＰ心入
りポリマー碍子１３の下端には支持金具１５が取り付け
られ、この支持金具１５によりジャンパー線３の中間部
が支持されている。この状態でジャンパー線３の中間部
は、上から見て（図２の状態で）両端部より鉄塔アーム
７の先端側に位置する。これによりジャンパー線３の中
間部と鉄塔幹体５との絶縁間隔が保たれる。1 to 3 show an embodiment of the invention of claim 1. In this jumper device for overhead transmission lines between narrow lines,
To the tip side from the attachment point P of the tension insulator connection of the steel tower arm 7,
Two polymer insulators 13 with FRP cores are attached downward with a space in the line direction. A support fitting 15 is attached to the lower end of the FRP core-containing polymer insulator 13, and the middle part of the jumper wire 3 is supported by the support fitting 15. In this state, the intermediate portion of the jumper wire 3 is located closer to the tip end side of the steel tower arm 7 than both ends when viewed from above (in the state of FIG. 2). As a result, the insulation distance between the intermediate portion of the jumper wire 3 and the steel tower trunk 5 is maintained.
【００１５】この構造で２７５ｋＶ設計の場合、風速４
０ｍ／秒の風が当たると、ＦＲＰ心入りポリマー碍子１
３の下端で約５７cmの変位が出る。この変位は鉄塔アー
ム７の長さに予め含めておけばよい。また地震の振動に
対しては、ＦＲＰ心入りポリマー碍子１３の弾性で振動
を吸収でき、しかもその自重が小さいことから、ＦＲＰ
心入りポリマー碍子１３に発生する歪は小さく、破損の
おそれは全くないことが分かった。In the case of 275 kV design with this structure, the wind speed is 4
When exposed to a wind of 0 m / sec, a polymer insulator with FRP core 1
At the bottom of 3, there is a displacement of about 57 cm. This displacement may be included in the length of the steel tower arm 7 in advance. Further, with respect to the vibration of the earthquake, the elasticity of the FRP core-containing polymer insulator 13 can absorb the vibration, and its own weight is small.
It was found that the strain generated in the cored polymer insulator 13 was small and there was no possibility of breakage.
【００１６】これに対し、ＦＲＰ心入りポリマー碍子１
３の代わりに中実ＳＰ碍子を使用して上記と同じジャン
パー装置を構成すると、風速４０ｍ／秒では破壊に至ら
ないものの、地震時には中実ＳＰ碍子に２６０〜４４６
ｋｇの荷重がかかり、簡単に破壊してしまうことが分か
った。On the other hand, FRP cored polymer insulator 1
If a solid SP insulator is used instead of 3 and the same jumper device is configured as above, destruction will not occur at a wind speed of 40 m / sec, but during an earthquake, the solid SP insulator will be 260 to 446.
It was found that a load of kg was applied and it was easily destroyed.
【００１７】図４ないし図６は請求項２の発明の実施例
を示す。この狭線間架空送電線用ジャンパー装置では、
ジャンパー線３の中間部が剛性導体例えばアルミパイプ
３ａで構成されている。また鉄塔アーム７の耐張碍子連
取り付け点Ｐより先端側に、２本のＦＲＰ心入りポリマ
ー碍子１３が線路方向に間隔をあけて下向きに取り付け
られている。２本のＦＲＰ心入りポリマー碍子１３は上
端より下端の間隔を大きくしてあり、その各々の下端で
アルミパイプ３ａをほぼ水平に支持している。この状態
でアルミパイプ３ａは、上から見て（図５の状態で）ジ
ャンパー線３の両端部より鉄塔アーム７の先端側に位置
する。これによりアルミパイプ３ａと鉄塔幹体５との絶
縁間隔が保たれる。4 to 6 show an embodiment of the invention of claim 2. In this jumper device for overhead transmission lines between narrow lines,
The intermediate portion of the jumper wire 3 is made of a rigid conductor such as an aluminum pipe 3a. Further, two FRP cored polymer insulators 13 are attached downwardly at a distance in the line direction from the tip end side of the tension-resistant insulator consecutive attachment point P of the steel tower arm 7. The two FRP cored polymer insulators 13 are arranged such that the distance between their lower ends is larger than their upper ends, and the aluminum pipes 3a are supported substantially horizontally at their lower ends. In this state, the aluminum pipe 3a is located closer to the tip end side of the steel tower arm 7 than both ends of the jumper wire 3 when viewed from above (in the state of FIG. 5). As a result, the insulation distance between the aluminum pipe 3a and the steel tower trunk 5 is maintained.
【００１８】図７ないし図９は請求項３の発明の実施例
を示す。この狭線間架空送電線用ジャンパー装置では、
鉄塔アーム７の下の鉄塔幹体５の側面に、２本のＦＲＰ
心入りポリマー碍子１３が、先端を連結しかつ基端を上
下方向に開いた状態で取り付けられている。このポリマ
ー碍子１３の先端連結部に支持金具１５が取り付けら
れ、この支持金具１５によりジャンパー線３の中間部が
支持されている。この状態でジャンパー線３の中間部
は、上から見て（図８の状態で）両端部より鉄塔アーム
７の先端側に位置する。これによりジャンパー線３の中
間部と鉄塔幹体５との絶縁間隔が保たれる。この構造が
鉄塔アーム７の長さを最も短くすることができる。7 to 9 show the third embodiment of the invention. In this jumper device for overhead transmission lines between narrow lines,
Two FRPs on the side of the steel tower trunk 5 under the steel tower arm 7.
A cored polymer insulator 13 is attached with its tip end connected and its base end opened in the up-down direction. A support fitting 15 is attached to the tip connecting portion of the polymer insulator 13, and the middle part of the jumper wire 3 is supported by the support fitting 15. In this state, the intermediate portion of the jumper wire 3 is located closer to the tip end side of the steel tower arm 7 than both end portions when viewed from above (in the state of FIG. 8). As a result, the insulation distance between the intermediate portion of the jumper wire 3 and the steel tower trunk 5 is maintained. This structure can minimize the length of the tower arm 7.
【００１９】なお図７ないし図９の実施例では、先端を
連結した２本のＦＲＰ心入りポリマー碍子を、基端を上
下方向に開いた状態で鉄塔幹体に取り付けたが、先端を
連結した２本のＦＲＰ心入りポリマー碍子は、基端を水
平方向に開いた状態で鉄塔幹体に取り付けてもよい。ま
た３本以上のＦＲＰ心入りポリマー碍子を、先端を連結
し、基端を開いた状態で鉄塔幹体に取り付ける構成とす
ることもできる。In the embodiments of FIGS. 7 to 9, two polymer insulators with FRP cores, the tips of which were connected to each other, were attached to the steel tower trunk with the base ends opened in the vertical direction. The two polymer insulators with FRP cores may be attached to the steel tower trunk with the base ends opened horizontally. Further, three or more FRP core-containing polymer insulators may be attached to the steel tower trunk with the ends connected and the base ends open.
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、軽
量なＦＲＰ心入りポリマー碍子によりジャンパー線の中
間部を支持し、しかもＦＲＰ心入りポリマー碍子の取り
付け点を従来より鉄塔アームの付け根の方に近づけるこ
とができるため、鉄塔アームの長さを短くすることがで
き、またこれにより鉄塔を小型化することができる。As described above, according to the present invention, a lightweight FRP cored polymer insulator supports an intermediate portion of a jumper wire, and moreover, the attachment point of the FRP cored polymer insulator is more than that of a conventional steel tower arm. Since it can be brought closer to the other side, the length of the steel tower arm can be shortened, and thereby the steel tower can be downsized.
【図１】 請求項１の発明の一実施例に係るジャンパー
装置の側面図。FIG. 1 is a side view of a jumper device according to an embodiment of the present invention.
【図２】 図１のジャンパー装置の平面図。FIG. 2 is a plan view of the jumper device shown in FIG.
【図３】 図１のジャンパー装置の正面図。3 is a front view of the jumper device of FIG. 1. FIG.
【図４】 請求項２の発明の一実施例に係るジャンパー
装置の側面図。FIG. 4 is a side view of a jumper device according to an embodiment of the invention of claim 2;
【図５】 図４のジャンパー装置の平面図。5 is a plan view of the jumper device of FIG.
【図６】 図４のジャンパー装置の正面図。6 is a front view of the jumper device of FIG.
【図７】 請求項３の発明の一実施例に係るジャンパー
装置の側面図。FIG. 7 is a side view of a jumper device according to an embodiment of the invention of claim 3;
【図８】 図７のジャンパー装置の平面図。FIG. 8 is a plan view of the jumper device shown in FIG.
【図９】 図７のジャンパー装置の正面図。9 is a front view of the jumper device of FIG. 7. FIG.
【図１０】 従来の狭線間架空送電線とそのジャンパー
装置を示す平面図。FIG. 10 is a plan view showing a conventional overhead transmission line between narrow lines and a jumper device thereof.
【図１１】 図１０のジャンパー装置の正面図。11 is a front view of the jumper device of FIG.
１：架空送電線の本線 ３：ジャン
パー線 ３ａ：アルミパイプ（剛性導体） ５：鉄塔幹
体 ７：鉄塔アーム ９：耐張碍
子連 １３：ＦＲＰ心入りポリマー碍子 １５：支持金
具 Ｐ：鉄塔アームの耐張碍子連取り付け点1: Main line of overhead power transmission line 3: Jumper line 3a: Aluminum pipe (rigid conductor) 5: Steel tower trunk 7: Steel tower arm 9: Tension insulator insulator 13: FRP cored polymer insulator 15: Supporting metal fitting P: Steel tower arm Attachment points for tension insulators
Claims (3)
端側にＦＲＰ心入りポリマー碍子を下向きに取り付け、
このＦＲＰ心入りポリマー碍子の下端でジャンパー線の
中間部を、上から見てジャンパー線の中間部が両端部よ
り鉄塔アーム先端側に位置するように支持したことを特
徴とする狭線間架空送電線用ジャンパー装置。1. A polymer insulator with a FRP core is attached downward from a tip end side of a tension-resistant insulator connecting point of a steel tower arm,
The intermediate portion of the jumper wire is supported at the lower end of the FRP cored polymer insulator so that the intermediate portion of the jumper wire is located closer to the tip of the steel tower arm than the both ends when viewed from above. Jumper device for electric wires.
し、鉄塔アームの耐張碍子連取り付け点より先端側に２
本のＦＲＰ心入りポリマー碍子を下向きに取り付け、こ
の２本のＦＲＰ心入りポリマー碍子の下端の間隔を上端
の間隔より大きくして、その下端で前記剛性導体を、上
から見て剛性導体がジャンパー線の両端部より鉄塔アー
ム先端側に位置するように支持したことを特徴とする狭
線間架空送電線用ジャンパー装置。2. The intermediate portion of the jumper wire is made of a rigid conductor, and the end portion of the tower arm is 2 from the attachment point of the tension insulator connection.
The two polymer insulators with FRP cores are attached downward, and the distance between the lower ends of the two polymer insulators with FRP cores is made larger than the distance between the upper ends, and the rigid conductors are jumpered at the lower ends as seen from above. A jumper device for an overhead transmission line between narrow lines, wherein the jumper device is supported so as to be located closer to the tip end side of a steel tower arm than both ends of the line.
本のＦＲＰ心入りポリマー碍子を、先端を連結しかつ基
端を先端より開いた状態で取り付け、そのポリマー碍子
の先端連結部でジャンパー線の中間部を、上から見てジ
ャンパー線の中間部が両端部より鉄塔アーム先端側に位
置するように支持したことを特徴とする狭線間架空送電
線用ジャンパー装置。3. A plurality of FRP core-containing polymer insulators are attached to the side surface of the steel tower trunk below the steel tower arm in a state in which the tips are connected and the base ends are opened from the tips, and the tip connection part of the polymer insulator is provided. The jumper device for an overhead transmission line between narrow lines, characterized in that the middle part of the jumper wire is supported so that the middle part of the jumper wire is located closer to the tip of the steel tower arm than both ends when viewed from above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289787A JPH07135726A (en) | 1993-10-27 | 1993-10-27 | Jumper device for short length aerial transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5289787A JPH07135726A (en) | 1993-10-27 | 1993-10-27 | Jumper device for short length aerial transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07135726A true JPH07135726A (en) | 1995-05-23 |
Family
ID=17747770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5289787A Pending JPH07135726A (en) | 1993-10-27 | 1993-10-27 | Jumper device for short length aerial transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07135726A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023726A (en) * | 2001-07-04 | 2003-01-24 | Furukawa Electric Co Ltd:The | Jumper for overhead transmission line |
| KR102403552B1 (en) * | 2022-03-30 | 2022-05-30 | 주식회사 남강엔지니어링 | Jumper socket and power-transmission line connecting system comprising the same |
| CN115274232A (en) * | 2022-08-23 | 2022-11-01 | 国网福建省电力有限公司经济技术研究院 | Design method and system of two-section variable-diameter-deflection composite windproof insulator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844798A (en) * | 1971-05-17 | 1973-06-27 | ||
| JPS50150892A (en) * | 1974-05-24 | 1975-12-03 |
-
1993
- 1993-10-27 JP JP5289787A patent/JPH07135726A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844798A (en) * | 1971-05-17 | 1973-06-27 | ||
| JPS50150892A (en) * | 1974-05-24 | 1975-12-03 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023726A (en) * | 2001-07-04 | 2003-01-24 | Furukawa Electric Co Ltd:The | Jumper for overhead transmission line |
| KR102403552B1 (en) * | 2022-03-30 | 2022-05-30 | 주식회사 남강엔지니어링 | Jumper socket and power-transmission line connecting system comprising the same |
| CN115274232A (en) * | 2022-08-23 | 2022-11-01 | 国网福建省电力有限公司经济技术研究院 | Design method and system of two-section variable-diameter-deflection composite windproof insulator |
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| Date | Code | Title | Description |
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| EXPY | Cancellation because of completion of term |