JPH1028314A - Pipe-type jumper device - Google Patents

Pipe-type jumper device

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Publication number
JPH1028314A
JPH1028314A JP8195564A JP19556496A JPH1028314A JP H1028314 A JPH1028314 A JP H1028314A JP 8195564 A JP8195564 A JP 8195564A JP 19556496 A JP19556496 A JP 19556496A JP H1028314 A JPH1028314 A JP H1028314A
Authority
JP
Japan
Prior art keywords
pipe
conductor
jumper device
type jumper
dimples
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
Application number
JP8195564A
Other languages
Japanese (ja)
Inventor
Kazuo Yokoyama
一雄 横山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP8195564A priority Critical patent/JPH1028314A/en
Publication of JPH1028314A publication Critical patent/JPH1028314A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce the wind pressure load which acts on a pipetype jumper device. SOLUTION: A pipe-type jumper device is constituted in such a way that twisted conductors are respectively connected to transmission lines on both sides of a steel tower, and the conductors are electrically connected to each other through a pipe conductor. On the surface of the pipe conductor 1, dimples 1a are formed and distributed over the entire surface of the pipe of the conductor 1. When the dimples la exist on the surface of the conductor 1, the air resistance coefficient of the conductor 1 becomes smaller, as compared with a pipe conductor having a smooth surface, and accordingly, the wind pressure load which acts on the conductor 1 also becomes smaller. The same effect can be obtained when a plurality of narrow grooves is formed on the surface of the pipe conductor 1 in the longitudinal direction of the pipe at intervals in the circumferential direction of the pipe.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は,鉄塔アームの両
側に耐張支持されている送電線本線のそれぞれに接続さ
れた撚線導体間をパイプ導体により電気的に接続してな
るパイプ式ジャンパ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe-type jumper device in which stranded conductors respectively connected to transmission line main lines supported on both sides of a tower arm are electrically connected by pipe conductors. About.

【0002】[0002]

【従来の技術】超高圧架空送電線本線の耐張鉄塔におい
て,鉄塔のアーム部にそれぞれ耐張碍子連を介して引き
留められた鉄塔両側の送電線本線間の電流通路を確保す
るために,図3に示すようなパイプ式ジャンパ装置が一
般に使用されている。なお,図3のパイプ式ジャンパ装
置の構成は,図に表わされた範囲では,本発明および従
来例に共通である。このパイプ式ジャンパ装置は,耐張
鉄塔のアーム10aとの間の電気的絶縁に必要なクリア
ランスを最小限に抑えるために,剛性を持つ円形断面の
パイプ導体1を鉄塔アーム10aの下方中央部に配置
し,このパイプ導体1の両端部付近を碍子連12の基端
に有するヨーク13に連結されている支持杆16にて吊
り下げると共に,パイプ導体1の両端末に設けられた接
続端子2に,一端が送電線本線17側のジャンパソケッ
ト14に接続されている撚線導体15の他端に圧縮接続
された接続ソケット18を嵌合・ボルト締めすることに
より,ジャンパ装置として電流通路を確保し,かつジャ
ンパクリアランスを所定の値に確保する構成になってい
る。そして,撚線導体15,パイプ導体1,および支持
杆16の各長さは,事前に机上設計することができ,予
め工場において,取り付ける鉄塔の設計条件に基づいた
プレハブ計算,および撚線導体の圧縮接続等の加工を行
うことができるため,鉄塔の現場においては,各部品の
組み立てのみにて容易に長大なジャンパ装置を形成する
ことができる特長があり,現場における省力化,工期短
縮および信頼性の確保を容易に実現することができるも
のである。
2. Description of the Related Art In a tension tower of an ultra-high-voltage overhead power transmission line, in order to secure a current path between the transmission line main lines on both sides of the tower secured to the arm of the tower via a tension insulator series, respectively. A pipe type jumper device as shown in FIG. 3 is generally used. The configuration of the pipe-type jumper device of FIG. 3 is common to the present invention and the conventional example within the range shown in the drawing. In order to minimize the clearance required for electrical insulation between the tension tower arm 10a and the pipe-type jumper device, a pipe conductor 1 having a rigid circular cross section is provided at the lower central portion of the tower arm 10a. The pipe conductor 1 is suspended by a support rod 16 connected to a yoke 13 having a base end of the insulator string 12 near both ends of the pipe conductor 1, and connected to connection terminals 2 provided at both ends of the pipe conductor 1. A current path is secured as a jumper device by fitting and bolting a connection socket 18 compression-connected to the other end of the stranded conductor 15 having one end connected to the jumper socket 14 on the main line 17 of the transmission line. , And the jumper clearance is secured to a predetermined value. The lengths of the stranded conductor 15, the pipe conductor 1, and the support rod 16 can be designed in advance on a desk. In a factory, prefabricated calculations based on the design conditions of the steel tower to be installed, and Since it is possible to perform processing such as compression connection, on the site of a steel tower, a long jumper device can be easily formed only by assembling each part. That is, it is possible to easily realize the property.

【0003】上記パイプ式ジャンパ装置の取り付け状態
を線路方向から見ると図4の通りである。すなわち,鉄
塔10のアーム10aに引き留められた耐張碍子連12
に取り付けヨーク13を支持点として支持杆16の垂直
長さs分だけパイプ導体1がアーム10aから垂直方向
に離れて位置することになり,パイプ導体1と支持杆1
6と撚線導体15とその他ジャンパ装置を構成する付属
品類との投影受風面積に相当する荷重が風圧荷重として
ジャンパ装置に加わることになる。この風圧荷重がジャ
ンパ装置の自重に対して大きくなると,ジャンパ装置が
略水平方向にある角度θで傾くが,この傾きにより投影
受風面積が小さくなると風圧荷重も小さくなるので,ジ
ャンパ装置の自重で元の位置に戻ろうとし,こうして傾
きが大きくなる動作と元に戻る動作が繰り返される。す
なわち,風圧によるジャンパ装置の横揺れが生じること
になる。したがって,鉄塔10のアーム10a突出長さ
は,ジャンパ装置の最大横揺れ時において,鉄塔10と
パイプ導体1間の絶縁に必要な最低絶縁距離dを確保す
るように決定されている。
FIG. 4 shows the mounting state of the pipe type jumper device viewed from the line direction. That is, the tension insulator string 12 held on the arm 10a of the tower 10
The pipe conductor 1 is vertically separated from the arm 10a by the vertical length s of the support rod 16 with the mounting yoke 13 as a support point.
A load corresponding to the projected wind receiving area of 6, the stranded wire conductor 15, and other accessories constituting the jumper device is applied to the jumper device as a wind pressure load. If this wind pressure load becomes large with respect to the weight of the jumper device, the jumper device will be inclined at an angle θ substantially in the horizontal direction. However, if the projected wind receiving area becomes smaller due to this inclination, the wind pressure load will also become smaller. The operation of returning to the original position, the operation of increasing the inclination and the operation of returning to the original position are repeated. That is, the roll of the jumper device is caused by the wind pressure. Therefore, the projecting length of the arm 10a of the tower 10 is determined so as to secure the minimum insulation distance d required for insulation between the tower 10 and the pipe conductor 1 at the time of the maximum roll of the jumper device.

【0004】上記のパイプ導体1は,当該送電線本線1
7の電圧および送電容量に応じて,通常,外径が104
mmφ〜210mmφ程度,長さが6m〜20m程度の
ものが使用され,また,2本のパイプ導体1を平行に配
置する。このパイプ導体1は一般に押し出し成形された
ものが使用されるが,従来のパイプ導体は,単なる平滑
な円筒内面を持つ金型を通過させて押し出し成形したも
のであり,したがって表面が平滑な円形断面をなすもの
であった。なお,パイプ式ジャンパ装置における支持杆
16の主体部分は,一般に鋼管あるいはアルミ合金管等
の管材が用いられるが,従来の管材は表面平滑の円形断
面であった。また,パイプ式ジャンパ装置における撚線
導体15は複数の素線を撚り合わせた撚線であるが,従
来の撚線は各素線すべての表面が平滑な全体として円形
断面のものであった。
[0004] The above-mentioned pipe conductor 1 is connected to the transmission line main line 1.
7, the outer diameter is usually 104
Those having a diameter of about mm to 210 mm and a length of about 6 to 20 m are used, and two pipe conductors 1 are arranged in parallel. Generally, the pipe conductor 1 is formed by extrusion. However, the conventional pipe conductor is formed by extrusion through a mold having a mere smooth cylindrical inner surface. It was what made. The main part of the support rod 16 in the pipe-type jumper device is generally made of a pipe such as a steel pipe or an aluminum alloy pipe, but the conventional pipe has a circular cross section with a smooth surface. Further, the stranded conductor 15 in the pipe-type jumper device is a stranded wire in which a plurality of strands are twisted, but the conventional stranded wire has a circular cross section as a whole, in which the entire surface of each strand is smooth.

【0005】[0005]

【発明が解決しようとする課題】上記のようにパイプ式
ジャンパ装置に表面が平滑な円形断面のパイプ導体1を
使用する理由は,表面が平滑で円形断面を有する完全円
筒は,図5(イ)に示すように,レイノルズ数Rで示さ
れる風の強さにおける強風域において,空気抵抗係数C
xが急激に低下する特性を有しているためである。同図
において,(ロ)は7本撚り,(ハ)は19本撚り,
(ニ)は37本撚り,(ホ)は61本撚りのそれぞれパ
イプ導体1に相当するものが撚線である場合の風圧特性
を示している。
As described above, the reason why the pipe conductor 1 having a smooth surface and a circular cross section is used in a pipe type jumper device is that a complete cylinder having a smooth surface and a circular cross section is shown in FIG. ), The air resistance coefficient C in a strong wind region at the wind strength indicated by the Reynolds number R
This is because x has a characteristic of rapidly decreasing. In the figure, (b) is twisted 7 strands, (c) is twisted 19 strands,
(D) shows the wind pressure characteristics when 37 strands are twisted, and (e) shows the wind pressure characteristics when the conductor corresponding to the pipe conductor 1 is a stranded wire.

【0006】一般に,電線およびパイプ導体に加わる風
圧荷重Pは次式により算出される。 P=(1/2)・Cx・ρ・V2 R=V・D/ν ただし,P:風圧荷重(kgf/mm2 ), Cx:空気抵抗係数, ρ:空気密度(ρkgf・sec2 /m4 ), V:風速(m/sec), D:電線およびパイプ導体の直径(mm), ν:空気の動粘性係数(m2 /mm), この式から明らかな通り,風圧荷重Pは空気抵抗係数C
xの低下に比例して低減されることになる。
Generally, the wind pressure P applied to electric wires and pipe conductors is calculated by the following equation. P = (1/2) · Cx · ρ · V 2 R = V · D / ν where P: wind pressure load (kgf / mm 2 ), Cx: air resistance coefficient, ρ: air density (ρkgf · sec 2 / m 4 ), V: wind speed (m / sec), D: diameter of wire and pipe conductor (mm), ν: kinematic viscosity coefficient of air (m 2 / mm), as is clear from this equation, wind pressure load P is Air resistance coefficient C
x will be reduced in proportion to the decrease.

【0007】ジャンパ装置における横揺れをさらに抑制
することが望まれているが,図5に示される完全円筒
(イ)の場合の空気抵抗係数は理論値を示しており,し
たがって,従来のジャンパ装置における横揺れ抑制の限
界を示していることになる。すなわち,従来の表面平滑
な円形断面のパイプ導体を用いたパイプ式ジャンパ装置
では,現状以下のレベルまで横揺れを低減させることが
不可能である。
Although it is desired to further suppress the roll in the jumper device, the air resistance coefficient in the case of the complete cylinder (a) shown in FIG. 5 shows a theoretical value. This indicates the limit of roll suppression in the above. That is, in the conventional pipe-type jumper device using the pipe conductor having a circular cross section with a smooth surface, it is impossible to reduce the roll to a level below the current level.

【0008】本発明は上記従来の欠点を解消するために
なされたもので,風圧荷重による横揺れをさらに抑制で
きるパイプ式ジャンパ装置を提供することを目的とす
る。
The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide a pipe-type jumper device which can further suppress the roll due to a wind pressure load.

【0009】[0009]

【課題を解決するための手段】上記課題を解決する本発
明は,鉄塔におけるアームの両側にそれぞれ耐張碍子連
およびヨークを介して引留められた送電線本線にそれぞ
れ接続された撚線導体間を,前記ヨークに取り付けられ
ている支持杆に吊持されたパイプ導体により電気的に接
続してなるパイプ式ジャンパ装置において,前記パイプ
導体の表面に,パイプ表面全体に分布するディンプル,
またはパイプ円周方向に間隔をあけた複数の位置でパイ
プ長手方向に伸びる複数の細溝を形成したことを特徴と
する。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a method for connecting a stranded wire conductor respectively connected to a main line of a power transmission line which is fastened to both sides of an arm of a steel tower via a tension insulator string and a yoke. Is electrically connected by a pipe conductor hung on a support rod attached to the yoke, a dimple distributed on the entire surface of the pipe,
Alternatively, a plurality of narrow grooves extending in the longitudinal direction of the pipe are formed at a plurality of positions spaced apart in the circumferential direction of the pipe.

【0010】請求項2は,パイプ式ジャンパ装置におけ
るパイプ導体支持用の支持杆の表面に,上記と同様にデ
ィンプルまたは細溝を形成したものである。
According to a second aspect of the present invention, a dimple or a narrow groove is formed on the surface of a support rod for supporting a pipe conductor in a pipe-type jumper device in the same manner as described above.

【0011】請求項3は,パイプ式ジャンパ装置におけ
る撚線導体の表面に,上記と同様にディンプルまたは細
溝を形成したものである。
According to a third aspect of the present invention, a dimple or a narrow groove is formed on the surface of the stranded conductor in the pipe-type jumper device in the same manner as described above.

【0012】[0012]

【発明の実施の形態】以下,本発明の実施の形態を図
1,図2の実施例を参照して説明する。なお,この実施
例のパイプ式ジャンパ装置の全体構成自体は,本発明お
よび従来例に共通の図3に示した通りである。図1に請
求項1の発明の一実施例のパイプ式ジャンパ装置におけ
るパイプ導体1を示す。図1(イ)はパイプ導体1の一
部分の正面図,図1(ロ)は横断面図である。図示のよ
うに,この実施例のパイプ式ジャンパ装置におけるパイ
プ導体1の表面には,パイプ表面全体に分布するディン
プル1aが形成されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. The overall configuration of the pipe-type jumper device of this embodiment is as shown in FIG. 3 which is common to the present invention and the conventional example. FIG. 1 shows a pipe conductor 1 in a pipe-type jumper device according to an embodiment of the present invention. FIG. 1A is a front view of a part of the pipe conductor 1, and FIG. As shown in the figure, dimples 1a distributed over the entire pipe surface are formed on the surface of the pipe conductor 1 in the pipe type jumper device of this embodiment.

【0013】上記のようにディンプル1aを表面に形成
したパイプ導体1においては,表面のディンプル1aが
空気抵抗係数を低下させる作用を奏する。これは,ゴル
フボールの表面に形成したディンプルが飛行中のゴルフ
ボールの空気抵抗係数を低下させ,飛距離を増大させる
作用とほぼ同じである。パイプ導体1の空気抵抗係数が
低下するので,ジャンパ装置の横揺れを抑制する効果が
得られる。
In the pipe conductor 1 having the dimples 1a formed on the surface as described above, the dimples 1a on the surface have an effect of lowering the air resistance coefficient. This is almost the same as the effect of the dimples formed on the surface of the golf ball in reducing the air resistance coefficient of the golf ball during flight and increasing the flight distance. Since the air resistance coefficient of the pipe conductor 1 is reduced, the effect of suppressing the roll of the jumper device can be obtained.

【0014】図2に他の実施例を示す。この実施例のパ
イプ導体1は,その表面に,パイプ円周方向に間隔をあ
けた位置でパイプ長手方向に伸びる複数の細溝1bを形
成している。この細溝1bによっても,ディンプルの場
合と同様に,完全円筒の場合と比べて空気抵抗係数を低
下させる作用が得られ,パイプ式ジャンパ装置の横揺れ
を抑制する効果が得られる。
FIG. 2 shows another embodiment. In the pipe conductor 1 of this embodiment, a plurality of narrow grooves 1b extending in the longitudinal direction of the pipe are formed on the surface thereof at positions spaced apart in the circumferential direction of the pipe. As with the dimples, the narrow groove 1b also has the effect of reducing the air resistance coefficient as compared with the case of a perfect cylinder, and has the effect of suppressing the roll of the pipe-type jumper device.

【0015】なお,パイプ式ジャンパ装置に使用される
パイプ導体1は,機械的強度が要求されることから,一
般に熱処理(T6処理)を施した高強度のアルミニウム
が使用されるが,その熱処理は,押し出しによりパイプ
導体を製造し次いで真直処理によりその形状を整えた後
に施している。したがって,上記のディンプル1aの形
成は,押し出し成形をし真直処理を行った段階で,横方
向からディンプルと逆の凹凸を持つ金型でプレスするこ
とにより容易に実現できる。次いで,熱処理を行う。ま
た,上記の細溝1bの形成は,押し出し用ダイスに細溝
を設けることで容易に実現できる。
Since the pipe conductor 1 used in the pipe type jumper device is required to have mechanical strength, high-strength aluminum subjected to a heat treatment (T6 treatment) is generally used. After the pipe conductor is manufactured by extrusion, and the shape is adjusted by straightening, the pipe conductor is applied. Therefore, the formation of the dimples 1a can be easily realized by pressing with a metal mold having concavities and convexities opposite to the dimples from the lateral direction at the stage of performing the extrusion molding and the straightness processing. Next, heat treatment is performed. Further, the formation of the above-mentioned narrow groove 1b can be easily realized by providing the narrow groove in the extrusion die.

【0016】図3に示されるように,パイプ導体1は耐
張碍子連12の一端に取り付けられたヨーク13に上端
を取り付けた支持杆16により支持され,そして,この
支持杆16の主体部分は円形断面を有する鋼管,あるい
はアルミ合金管からなるが,図1または図2に示したパ
イプ導体1の場合と同様の考えを適用することができ
る。すなわち,支持杆16の主体部分を構成する管材の
表面に,杆表面全体に分布するディンプル,または杆円
周方向に間隔をあけた位置で杆長手方向に伸びる複数の
細溝を形成することができる。なお,この場合における
管材の外観としては,図1や図2と同様に表れるので,
支持杆16にディンプルや細溝を設ける場合の詳細な図
示は省略する。このように,支持杆16にディンプルあ
るいは細溝を形成すると,パイプ導体1にディンプルま
たは細溝を形成した場合と同様な作用により,支持杆1
6における風圧荷重の低減が図られ,パイプジャンパ装
置の横揺れの抑制が図られる。
As shown in FIG. 3, the pipe conductor 1 is supported by a support rod 16 having an upper end attached to a yoke 13 attached to one end of a tension insulator series 12, and a main part of the support rod 16 is Although made of a steel pipe or an aluminum alloy pipe having a circular cross section, the same concept as in the case of the pipe conductor 1 shown in FIG. 1 or 2 can be applied. That is, dimples distributed over the entire surface of the rod or a plurality of narrow grooves extending in the longitudinal direction of the rod at positions spaced apart in the circumferential direction of the rod may be formed on the surface of the tube constituting the main portion of the supporting rod 16. it can. In this case, the appearance of the tube material appears in the same manner as in FIG. 1 and FIG.
Detailed illustration of the case where dimples or narrow grooves are provided on the support rod 16 is omitted. When the dimple or the narrow groove is formed in the support rod 16 in this way, the support rod 1 is formed by the same operation as the case where the dimple or the narrow groove is formed in the pipe conductor 1.
6, the wind pressure load is reduced, and the roll of the pipe jumper device is suppressed.

【0017】また,撚線導体15を構成する素線に,図
1または図2に示したパイプ導体1の場合と同様の考え
を適用することができる。すなわち,撚線導体15の最
外周の素線の表面に,撚線表面全体に分布するディンプ
ル,または撚線円周方向に間隔をあけた複数の位置で撚
線長手方向に伸びる複数の細溝を形成することができ
る。なお,この場合における1本の素線の外観として
は,やはり図1や図2とほぼ同様に表れる(ただし中空
ではない)ので,撚線導体15にディンプルや細溝を設
ける場合の詳細な図示は省略する。このように,撚線導
体15の最外周の素線にディンプルあるいは細溝を形成
すると,パイプ導体1にディンプルまたは細溝を形成し
た場合と比べてその程度は小さいがやはり同様な作用に
より,撚線導体15における風圧荷重の低減が図られ,
パイプジャンパ装置の横揺れの抑制が図られる。
Further, the same idea as in the case of the pipe conductor 1 shown in FIG. 1 or 2 can be applied to the strand constituting the stranded conductor 15. That is, dimples distributed over the entire surface of the stranded wire or a plurality of narrow grooves extending in the longitudinal direction of the stranded wire at a plurality of positions spaced in the circumferential direction of the stranded wire are provided on the surface of the outermost strand of the stranded wire conductor 15. Can be formed. In this case, the appearance of one strand is substantially the same as that shown in FIGS. 1 and 2 (however, it is not hollow), so that a detailed illustration of the case where dimples or narrow grooves are provided in the stranded conductor 15 is shown. Is omitted. As described above, when dimples or narrow grooves are formed in the outermost strand of the stranded conductor 15, the degree of twist is smaller than that in the case where dimples or narrow grooves are formed in the pipe conductor 1, but the same effect is obtained. The wind pressure load on the wire conductor 15 is reduced,
Rolling of the pipe jumper device is suppressed.

【0018】上述のように,パイプ導体1,支持杆1
6,撚線導体15の各々について低風圧化の処理を施す
ことで,パイプ式ジャンパ装置全体としての横揺れを十
分抑制することができるが,さらに低風圧化を図るた
め,パイプ式ジャンパ装置を構成するその他の構成部品
にも同様な低風圧化の処理を施すことができる。すなわ
ち,各撚線導体15間の間隔を保つジャンパスペーサ1
9,2本のパイプ導体1の間隔を保つパイプ導体のスペ
ーサ18,パイプ導体1に設けた接地金具20およびジ
ャンパホーン21等についても,それらがアルミ合金鋳
物や鋼管等から製造されていることから,その表面にデ
ィンプルまたは細溝を形成することもできる。
As described above, the pipe conductor 1, the support rod 1
6, by performing the process of reducing the wind pressure on each of the stranded conductors 15, it is possible to sufficiently suppress the lateral swing of the pipe-type jumper device as a whole. However, in order to further reduce the wind pressure, the pipe-type jumper device is required. A similar process of reducing wind pressure can be applied to other constituent components. That is, the jumper spacer 1 for maintaining the interval between the stranded conductors 15
9, the spacer 18 of the pipe conductor for keeping the interval between the two pipe conductors 1, the grounding metal fittings 20 and the jumper horn 21 provided on the pipe conductor 1 are also manufactured from an aluminum alloy casting or a steel pipe. , Dimples or narrow grooves can be formed on the surface.

【0019】[0019]

【発明の効果】請求項1の発明によれば,パイプ導体の
表面にディンプルまたは細溝を形成したので,パイプ導
体の空気抵抗係数を従来の平滑な表面のパイプ導体と比
べてさらに小さくすることが可能となり,これにより風
圧荷重を低減させ,パイプ式ジャンパ装置の横揺れをさ
らに抑制することが可能となった。
According to the first aspect of the present invention, since dimples or narrow grooves are formed on the surface of the pipe conductor, the air resistance coefficient of the pipe conductor can be further reduced as compared with the conventional pipe conductor having a smooth surface. This has made it possible to reduce the wind pressure load and further suppress the roll of the pipe-type jumper device.

【0020】また,請求項2または請求項3の発明によ
れば,支持杆または撚線導体の表面に,ディンプルある
いは細溝を形成することで,前記と同様に,支持杆また
は撚線導体の風圧荷重を低減させ,パイプ式ジャンパ装
置の横揺れをさらに抑制することが可能となる。
According to the second or third aspect of the present invention, dimples or narrow grooves are formed on the surface of the support rod or the stranded conductor, thereby forming the support rod or the stranded conductor in the same manner as described above. The wind pressure load can be reduced, and the roll of the pipe-type jumper device can be further suppressed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の一実施例のパイプ式ジャンパ装置に
おけるパイプ導体の一部分を示すもので,(イ)は正面
図,(ロ)は横断面図である。
FIG. 1 shows a part of a pipe conductor in a pipe-type jumper device according to an embodiment of the present invention, wherein (a) is a front view and (b) is a cross-sectional view.

【図2】この発明の他の実施例のパイプ式ジャンパ装置
におけるパイプ導体の一部分を示すもので,(イ)は正
面図,(ロ)は横断面図である。
FIGS. 2A and 2B show a part of a pipe conductor in a pipe jumper device according to another embodiment of the present invention, wherein FIG. 2A is a front view and FIG.

【図3】本発明および従来例に共通する図であり,一般
的なパイプ式ジャンパ装置の全体構成を示す正面図であ
る。
FIG. 3 is a view common to the present invention and the conventional example, and is a front view showing the entire configuration of a general pipe-type jumper device.

【図4】図3のパイプ式ジャンパ装置におけるパイプ導
体の鉄塔に対する位置関係を線路長手方向から見て説明
する図である。
FIG. 4 is a diagram illustrating a positional relationship of a pipe conductor with respect to a steel tower in the pipe-type jumper device of FIG.

【図5】従来の表面平滑なパイプ導体を持つパイプ式ジ
ャンパ装置では空気抵抗係数の低減に限界があることを
説明するためのもので,完全円筒および種々の撚線につ
いて,レイノルズ数Rと空気抵抗係数Cxとの関係を示
した図である。
FIG. 5 is for explaining that there is a limit to the reduction of the air drag coefficient in a conventional pipe type jumper device having a pipe conductor having a smooth surface, and for a complete cylinder and various stranded wires, the Reynolds number R and the air FIG. 4 is a diagram illustrating a relationship with a resistance coefficient Cx.

【符号の説明】[Explanation of symbols]

1 パイプ導体 1a ディンプル 1b 細溝 10 鉄塔 10a アーム 12 耐張碍子連 13 ヨーク 15 撚線導体 16 支持杆 17 送電線本線 DESCRIPTION OF SYMBOLS 1 Pipe conductor 1a Dimple 1b Narrow groove 10 Steel tower 10a Arm 12 Tension insulator connection 13 Yoke 15 Twisted wire conductor 16 Support rod 17 Transmission line main line

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 鉄塔(10)におけるアーム(10a)
の両側にそれぞれ耐張碍子連(12)およびヨーク(1
3)を介して引留められた送電線本線(17)にそれぞ
れ接続された撚線導体(15)間を,前記ヨーク(1
3)に取り付けられている支持杆(16)に吊持された
パイプ導体(1)により電気的に接続してなるパイプ式
ジャンパ装置において,前記パイプ導体(1)の表面
に,パイプ表面全体に分布するディンプル,またはパイ
プ円周方向に間隔をあけた複数の位置でパイプ長手方向
に伸びる複数の細溝を形成したことを特徴とするパイプ
式ジャンパ装置。
1. An arm (10a) in a tower (10).
On both sides of the tension insulator string (12) and the yoke (1)
3) between the stranded conductors (15) respectively connected to the transmission line main line (17) retained via the yoke (1).
In a pipe-type jumper device electrically connected by a pipe conductor (1) suspended on a support rod (16) attached to 3), a pipe-type jumper device is provided on the surface of the pipe conductor (1) and on the entire surface of the pipe. A pipe-type jumper device, comprising a plurality of distributed dimples or a plurality of narrow grooves extending in a pipe longitudinal direction at a plurality of positions spaced apart in a circumferential direction of the pipe.
【請求項2】 鉄塔(10)におけるアーム(10a)
の両側にそれぞれ耐張碍子連(12)およびヨーク(1
3)を介して引留められた送電線本線(17)にそれぞ
れ接続された撚線導体(15)間を,前記ヨーク(1
3)に取り付けられている支持杆(16)に吊持された
パイプ導体(1)により電気的に接続してなるパイプ式
ジャンパ装置において,前記支持杆(16)の表面に,
杆表面全体に分布するディンプル,または杆円周方向に
間隔をあけた複数の位置で杆長手方向に伸びる複数の細
溝を形成したことを特徴とするパイプ式ジャンパ装置。
2. An arm (10a) in a tower (10).
On both sides of the tension insulator string (12) and the yoke (1)
3) between the stranded conductors (15) respectively connected to the transmission line main line (17) retained via the yoke (1).
In a pipe type jumper device electrically connected by a pipe conductor (1) suspended on a support rod (16) attached to 3), a surface of the support rod (16) is
A pipe-type jumper device comprising a plurality of dimples distributed over the entire surface of the rod or a plurality of narrow grooves extending in the longitudinal direction of the rod at a plurality of positions spaced apart in the circumferential direction of the rod.
【請求項3】 鉄塔(10)におけるアーム(10a)
の両側にそれぞれ耐張碍子連(12)およびヨーク(1
3)を介して引留められた送電線本線(17)にそれぞ
れ接続された撚線導体(15)間を,前記ヨーク(1
3)に取り付けられている支持杆(16)に吊持された
パイプ導体(1)により電気的に接続してなるパイプ式
ジャンパ装置において,前記撚線導体(15)の表面
に,撚線表面全体に分布するディンプル,または撚線円
周方向に間隔をあけた複数の位置で撚線長手方向に伸び
る複数の細溝を形成したことを特徴とするパイプ式ジャ
ンパ装置。
3. An arm (10a) in a tower (10).
On both sides of the tension insulator string (12) and the yoke (1)
3) between the stranded conductors (15) respectively connected to the transmission line main line (17) retained via the yoke (1).
In a pipe type jumper device electrically connected by a pipe conductor (1) suspended on a support rod (16) attached to 3), a surface of the stranded conductor (15) is provided on the surface of the stranded conductor (15). A pipe-type jumper device comprising: a plurality of dimples distributed throughout; or a plurality of narrow grooves extending in a longitudinal direction of a stranded wire at a plurality of positions spaced apart in a circumferential direction of the stranded wire.
JP8195564A 1996-07-05 1996-07-05 Pipe-type jumper device Pending JPH1028314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8195564A JPH1028314A (en) 1996-07-05 1996-07-05 Pipe-type jumper device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8195564A JPH1028314A (en) 1996-07-05 1996-07-05 Pipe-type jumper device

Publications (1)

Publication Number Publication Date
JPH1028314A true JPH1028314A (en) 1998-01-27

Family

ID=16343226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8195564A Pending JPH1028314A (en) 1996-07-05 1996-07-05 Pipe-type jumper device

Country Status (1)

Country Link
JP (1) JPH1028314A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004003394A1 (en) 2002-06-27 2004-01-08 Asahi Tec Corporation Object whose surface is to be treated, surface treatment method, and surface treatment apparatus
US7094476B2 (en) 2002-06-27 2006-08-22 Asahi Tec Corporation Surface-treated product, surface-treatment method, and surface-treatment apparatus
CN114783702A (en) * 2022-03-23 2022-07-22 西南交通大学 Bullet train roof insulator drag reduction structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004003394A1 (en) 2002-06-27 2004-01-08 Asahi Tec Corporation Object whose surface is to be treated, surface treatment method, and surface treatment apparatus
US7094476B2 (en) 2002-06-27 2006-08-22 Asahi Tec Corporation Surface-treated product, surface-treatment method, and surface-treatment apparatus
US7458881B2 (en) 2002-06-27 2008-12-02 Asahi Tec Corporation Surface treated product, surface treatment method, and surface treatment apparatus
CN114783702A (en) * 2022-03-23 2022-07-22 西南交通大学 Bullet train roof insulator drag reduction structure
CN114783702B (en) * 2022-03-23 2023-10-27 西南交通大学 Motor car roof insulator drag reduction structure

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