JPH0719063Y2 - Insulator structure for conductor connection - Google Patents
Insulator structure for conductor connectionInfo
- Publication number
- JPH0719063Y2 JPH0719063Y2 JP1988090530U JP9053088U JPH0719063Y2 JP H0719063 Y2 JPH0719063 Y2 JP H0719063Y2 JP 1988090530 U JP1988090530 U JP 1988090530U JP 9053088 U JP9053088 U JP 9053088U JP H0719063 Y2 JPH0719063 Y2 JP H0719063Y2
- Authority
- JP
- Japan
- Prior art keywords
- porcelain
- conductor
- conductive
- central conductor
- glaze layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は例えば架空電線を支持するとともに、引き下
げケーブル等の線路分岐用導体を接続するために使用さ
れる導体接続用碍子構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an insulator structure for conductor connection which is used for supporting an overhead wire and connecting a line branch conductor such as a pull-down cable. .
［従来の技術］ 従来の架空電線の分岐用碍子装置は、腕金などの接地物
に立設固定される磁器碍管と、該磁器碍管の上端部に固
定した電線受け溝を有する電線受け台と、さらに前記電
線受け台の上部に装設した電線のクランプ金具と、前記
磁器碍管の内部に下端部から挿入して取着されるケーブ
ル端末部とにより構成されている。[Prior Art] A conventional insulator device for branching an overhead wire includes a porcelain porcelain tube which is erected and fixed to a grounding object such as a armband, and an electric wire pedestal having an electric wire receiving groove fixed to an upper end of the porcelain porcelain tube. Further, it is composed of an electric wire clamp fitting mounted on the upper part of the electric wire pedestal, and a cable terminal portion inserted and attached from the lower end into the inside of the porcelain porcelain tube.
又、前記碍管には、内部絶縁を強化するためのシリコン
グリースあるいは絶縁油などの流動性絶縁物が充填され
ている。The porcelain bushing is filled with a fluid insulating material such as silicon grease or insulating oil for strengthening internal insulation.
［考案が解決しようとする課題］ ところが、前述した従来の分岐用碍子装置は、碍管に流
動性絶縁物を充填しているので、流動性絶縁物が外部に
流出しないように碍管の上下両端部に密封構造を採用す
る必要があるばかりでなく、絶縁油を注入した場合には
その漏出により二次災害を発生するおそれもあった。[Problems to be Solved by the Invention] However, in the above-described conventional branch insulator device, since the porcelain insulator is filled with the fluid insulating material, the upper and lower end portions of the porcelain insulator are prevented from flowing out. Not only is it necessary to adopt a sealed structure in the above, but when insulative oil is injected, there is a risk that a secondary disaster could occur due to the leakage.
この考案の目的は流動性絶縁物の充填を不要にして、碍
管内部を空気絶縁とすることによって、簡単な密封構造
を適用することができ、製造及び組付を安価に行うこと
ができ、さらに安全性を向上できる導体接続用碍子構造
を提供することにある。The object of the present invention is to eliminate the need for filling a fluid insulating material and to make the inside of the porcelain tube air-insulated so that a simple sealing structure can be applied, and manufacturing and assembly can be performed at low cost. An object is to provide an insulator structure for connecting conductors, which can improve safety.
［課題を解決するための手段］ この考案は前記目的を達成するために、内周面に導電性
釉薬層を形成した、碍管の貫通孔に、中心導体を挿通
し、該中心導体と前記導電性釉薬層との間の空隙部に弾
力性に富む導電材を弾発的に嵌入して介在させ、前記の
中心導体と導電性釉薬層との電位を同電位としたもので
ある。[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention inserts a central conductor into a through hole of a porcelain tube having a conductive glaze layer formed on an inner peripheral surface thereof, and the central conductor and the conductive layer A conductive material having a high elasticity is elastically fitted and interposed in a gap between the conductive glaze layer and the conductive glaze layer, and the potentials of the central conductor and the conductive glaze layer are set to the same potential.
［作用］ この考案は中心導体と碍管内周面に密着形成して設けた
導電性釉薬層とを弾力性に富む導電材により弾発的に接
触させたので中心導体が碍管内周面に間隙なく密着して
一体化された構成と同様になり、この構成によって導電
性釉薬層と中心導体との電位を同電位にしているので碍
管内の空隙部の電界が緩和されて内部絶縁が安定し、コ
ロナの発生が抑制されるとともに絶縁劣化が防止され
る。[Operation] In this invention, the central conductor and the conductive glaze layer provided in close contact with the inner peripheral surface of the porcelain tube are elastically brought into contact with each other by the conductive material having a high elasticity, so that the central conductor has a gap on the inner peripheral surface of the porcelain tube. The structure is similar to the one in which the conductive glaze layer and the central conductor are made to have the same electric potential, and the electric field in the void in the porcelain tube is relaxed and the internal insulation is stabilized. The generation of corona is suppressed and the insulation deterioration is prevented.
又、前記碍管内部への流動性絶縁物の充填が不要となる
ので、複雑な密封構造をとる必要がない。Further, since it is not necessary to fill the inside of the porcelain tube with the fluid insulating material, it is not necessary to take a complicated sealing structure.
［実施例］ 以下、この考案を架空電線の分岐用碍子装置に具体化し
た一実施例を第１図〜第３図に基づいて説明する。[Embodiment] An embodiment in which the present invention is embodied in an insulator device for branching an overhead wire will be described below with reference to FIGS. 1 to 3.
第１図に示すように、中心部に貫通孔1aを有する磁器碍
管１の上端外周面には支持金具２が嵌合され、セメント
３により結合固定されている。As shown in FIG. 1, a support metal fitting 2 is fitted on the outer peripheral surface of the upper end of the porcelain porcelain tube 1 having a through hole 1a in the center thereof, and is fixedly joined by cement 3.
前記支持金具２の上面には電線受溝4aを形成した電線受
け台４がボルト５により固定されている。前記碍管１の
上端面と電線受台４の下面との間にはパッキン６が介在
されている。An electric wire receiving base 4 having an electric wire receiving groove 4a is fixed to the upper surface of the support fitting 2 with bolts 5. A packing 6 is interposed between the upper end surface of the porcelain bushing 1 and the lower surface of the electric wire pedestal 4.
前記電線受け台４の上面には左右一対の支持ボルト７が
互いに平行に立設され、両支持ボルト７にはクランプ金
具８が取着され、ナットによりクランプ金具８を前記電
線受け溝4aに支持した電線10側へ押圧することにより、
電線10を固定把持するようにしている。A pair of left and right support bolts 7 are erected parallel to each other on the upper surface of the electric wire receiving base 4, clamp metal fittings 8 are attached to the both support bolts 7, and the clamp metal fittings 8 are supported in the electric wire receiving groove 4a by nuts. By pressing to the electric wire 10 side,
The electric wire 10 is fixed and gripped.
又、磁器碍管１の下端外周面にはベース金具９が嵌合さ
れ同じくセメント３により結合固定されている。このベ
ース金具９は図示しない腕金などの接地物に固定支持さ
れるようになっている。A base metal fitting 9 is fitted on the outer peripheral surface of the lower end of the porcelain porcelain tube 1 and is also fixedly bonded by cement 3. The base metal fitting 9 is fixedly supported by a grounding object such as a wrist wire (not shown).
前記碍管１の内周面には導電性釉薬層11が碍管１と一体
に全面に密着して形成されている。又、前記電線受け台
４の下面に一体形成したボス部4bには、中心導体12上端
のねじ部12aが螺合されている。さらに、この中心導体1
2下端のねじ孔12bには拡径可能にスリットを有する筒形
接触子13の上端部に形成したねじ部13aが螺合固定され
ている。An electrically conductive glaze layer 11 is formed on the inner peripheral surface of the porcelain tube 1 so as to be in close contact with the entire surface of the porcelain tube 1 integrally. A screw portion 12a at the upper end of the center conductor 12 is screwed into a boss portion 4b integrally formed on the lower surface of the electric wire receiving base 4. Furthermore, this central conductor 1
(2) A screw portion 13a formed at the upper end of a cylindrical contact 13 having a slit for expanding the diameter is screwed and fixed in the screw hole 12b at the lower end.
前記碍管１内では、中心導体12の外周面と前記導電性釉
薬層11の内周面の間には上下端に位置する２箇所に導電
材としての導電性ゴム14が弾発下に挿入して介在され、
中心導体12と導電性釉薬層11とを電気的に接続して導電
性釉薬層11を中心導体12と同電位とし、両者間に介在す
る空気層すなわち空隙Ｇの電界強度を緩和されて内部絶
縁が安定し、内部コロナが生じるのを抑制して絶縁劣化
を防止するようにしている。In the porcelain bushing 1, conductive rubber 14 as a conductive material is elastically inserted in two places located at the upper and lower ends between the outer peripheral surface of the central conductor 12 and the inner peripheral surface of the conductive glaze layer 11. Intervened,
The central conductor 12 and the conductive glaze layer 11 are electrically connected to each other so that the conductive glaze layer 11 has the same potential as the central conductor 12, and the electric field strength of the air layer, that is, the air gap G interposed therebetween is relaxed to achieve internal insulation. Is stable, and the generation of internal corona is suppressed to prevent insulation deterioration.
前記碍管１の下端外周面には後述するケーブル端末部17
を圧入して嵌合させることにより碍管１の内部が封塞さ
れる。A cable terminal portion 17 to be described later is provided on the outer peripheral surface of the lower end of the porcelain bushing 1.
The inside of the porcelain insulator 1 is sealed by press-fitting and fitting.
前記において碍管１の下端内周面にはケーブル端末部17
の外部保護層22をベース金具９に接地するための導電性
釉薬層あるいはメタライズ相などの導電層15が形成され
ている。In the above, the cable end portion 17 is provided on the inner peripheral surface of the lower end of the porcelain bushing 1.
A conductive glaze layer or a conductive layer 15 such as a metallized phase for grounding the outer protective layer 22 to the base metal fitting 9 is formed.
次に、前記碍管１の下端部に対し取外し可能に取着され
るケーブル16の端末部17の構造及びケーブル端末支持機
構18について説明する。Next, the structure of the terminal portion 17 of the cable 16 detachably attached to the lower end portion of the porcelain tube 1 and the cable terminal support mechanism 18 will be described.
前記ケーブル16の導体16aは中継導体19に接続され、該
中継導体19の先端側の一側には前記筒形接触子13の内部
に挿入される差し込み端子20が接続固定されている。こ
れらの中継導体19及び差し込み端子20は電界緩和のため
半導電性ゴムよりなる内部保護層21により保持され、こ
の保護層21はさらに、ゴムよりなる絶縁層29に包蔵され
て前記外部保護層22に収納されている。前記内部保護層
21には、前記差し込み端子20を取り巻くようにユリヤ樹
脂などよりなる消弧筒23が前記筒形接触子13の外側に遊
嵌可能に立設され、端末部17を引き外す際に前記筒形接
触子13と差し込み端子20との間のアークを消弧筒23自身
が発生するガスにより抑制するようにしている。The conductor 16a of the cable 16 is connected to the relay conductor 19, and the insertion terminal 20 inserted into the inside of the cylindrical contact 13 is connected and fixed to one end of the relay conductor 19. The relay conductor 19 and the plug-in terminal 20 are held by an inner protective layer 21 made of semiconductive rubber for the purpose of electric field relaxation, and the protective layer 21 is further enclosed by an insulating layer 29 made of rubber so as to cover the outer protective layer 22. It is stored in. The internal protective layer
An arc-extinguishing cylinder 23 made of urea resin or the like surrounding the plug-in terminal 20 is erected on the outer side of the cylindrical contact 13 so as to be loosely fitted, and the cylindrical arc-shaped cylinder is used when the terminal part 17 is pulled out. The arc between the contact 13 and the plug terminal 20 is suppressed by the gas generated by the arc extinguishing cylinder 23 itself.
前記碍管１の下部外周面には、第２図に示すように支持
ピン24が２箇所に水平に突設され、該支持ピン24には細
長Ｕ字状の支持枠25が回動可能に支持され、その支持枠
25の下端部には押圧ロッド26が上下方向の移動可能に貫
通支持され、該ロッド26の上端部には前記端末部17下面
に押圧される押圧金具27が取着され、該押圧金具27と前
記支持枠25との間にはロッド26を上方へ付勢するばね28
が介在されている。そして、前記押圧ロッド26をばね28
の弾力に抗して下方へ引き下げた状態で、支持枠25を前
記支持ピン24を中心に第１図の時計周り方向に回動させ
ると、ケーブル端末部17が碍管１の下端部から第３図に
示すように離脱可能となっている。As shown in FIG. 2, support pins 24 are horizontally projected on the lower outer peripheral surface of the porcelain bushing 1, and an elongated U-shaped support frame 25 is rotatably supported on the support pins 24. And its support frame
A pressing rod 26 is penetratingly supported at a lower end portion of the rod 25 so as to be vertically movable, and a pressing metal fitting 27 that is pressed against the lower surface of the terminal portion 17 is attached to an upper end portion of the rod 26, and the pressing metal fitting 27 is A spring 28 for urging the rod 26 upward is provided between the support frame 25 and the support frame 25.
Is intervening. Then, the pressing rod 26 is attached to the spring 28.
When the support frame 25 is rotated in the clockwise direction in FIG. 1 around the support pin 24 in the state of being lowered downward against the elasticity of the cable end part 17, It can be removed as shown in the figure.
次に、前記のように構成した架空電線の分岐用碍子装置
についてその作用を説明する。Next, the operation of the insulator device for branching an overhead wire constructed as described above will be described.
この分岐用碍子装置の使用状態においては、前記電線10
から電線受け台４→中心導体12→筒形接触子13→差し込
み端子20→中継導体19→ケーブル16の順に線路の分岐路
が形成される。When the branch insulator device is in use, the electric wire 10 is
From the wire pedestal 4 to the center conductor 12 to the cylindrical contact 13 to the insertion terminal 20 to the relay conductor 19 to the cable 16, a branch path of the line is formed.
さて、本考案実施例では前記中心導体12が導電性ゴム14
により前記導電性釉薬層11と電気的に接続されているた
め、該導電性釉薬層11、すなわち碍管１の内周面全体が
中心導体12と同電位に保持される。この結果、磁器碍管
１の貫通孔1aに中心導体を密着して一体化したのと同様
に碍管内部の絶縁が強化され、中心導体12と導電性釉薬
層11との間に形成される空隙Ｇの電圧分担がなくなるの
でコロナの発生が抑制され、また、湿気による絶縁劣化
も防止される。In the embodiment of the present invention, the central conductor 12 is made of conductive rubber 14
Since it is electrically connected to the conductive glaze layer 11, the conductive glaze layer 11, that is, the entire inner peripheral surface of the porcelain insulator 1 is held at the same potential as the central conductor 12. As a result, the insulation inside the porcelain tube is strengthened similarly to the case where the central conductor is closely adhered to and integrated with the through hole 1a of the porcelain porcelain tube 1, and a gap G formed between the central conductor 12 and the conductive glaze layer 11 is formed. Since there is no voltage sharing in the device, the generation of corona is suppressed and the insulation deterioration due to moisture is also prevented.
又、前記空隙Ｇに対し、絶縁油などの流動性絶縁物を注
入充填する必要がないので、その流出を防止するための
特別な密封構造を省略することができ、従って、構造を
簡素化し組付作業を容易に行ない、かつ、コロナによる
内部絶縁の劣化がないので信頼性を向上することができ
る。Further, since it is not necessary to inject and fill a fluid insulating material such as insulating oil into the gap G, a special sealing structure for preventing the outflow thereof can be omitted. Therefore, the structure can be simplified and assembled. The attachment work can be performed easily, and since the internal insulation is not deteriorated by the corona, the reliability can be improved.
なお、実施例では碍子への接続導体をケーブル端末部と
して説明したが、線路に通常に使用されるリード線等に
ついても同様である。In the embodiments, the connecting conductor to the insulator is described as the cable terminal portion, but the same applies to a lead wire or the like normally used for a line.
また、この考案は次のように具体化することも可能であ
る。Further, the present invention can be embodied as follows.
（１）第４図に示すように中心導体12の外周面に取付用
の溝12cを形成し、この溝12cにスリットなどを設けて弾
力性を付与した筒形導体30を取着して、この筒形導体30
を弾発力により碍管１内周面の導電性釉薬層11と電気的
に接続するように形成すること。(1) As shown in FIG. 4, a groove 12c for mounting is formed on the outer peripheral surface of the center conductor 12, and a slit-like groove 12c is provided in this groove 12c to attach a tubular conductor 30 having elasticity, This tubular conductor 30
To be electrically connected to the conductive glaze layer 11 on the inner peripheral surface of the porcelain insulator 1 by elastic force.
（２）第５図に示すように中心導体12に設けた筒形接触
子31の外側に溝31aを設け、この溝31aに消弧筒32の内側
に形成した環状突起32aを係止させて消弧筒32を接触子3
1に遊嵌させること。(2) As shown in FIG. 5, a groove 31a is provided on the outer side of the cylindrical contactor 31 provided on the center conductor 12, and an annular projection 32a formed on the inner side of the arc extinguishing cylinder 32 is engaged with the groove 31a. Contact the arc extinguishing cylinder 32 with the contact 3
Playing in 1.
［考案の効果］ 以上詳述したように、この考案は前記の構成を採用した
ことにより磁器碍管内の空気間隙部の電界を緩和して内
部絶縁を安定させているので絶縁劣化とコロナの発生が
防止され、又、流動絶縁物の充填が不要になるので、シ
ール構造を簡素化して製造及び組付を容易とし、信頼性
を向上するとともに、製品のコストダウンを期すること
ができる効果がある。[Advantages of the Invention] As described in detail above, the present invention adopts the above-mentioned configuration to relax the electric field in the air gap portion in the porcelain porcelain tube and stabilize the internal insulation. In addition, since it is unnecessary to fill the flow insulating material, it is possible to simplify the seal structure, facilitate manufacturing and assembly, improve reliability, and reduce the cost of the product. is there.
第１図はこの考案を分岐用碍子装置に具体化した一実施
例を示す中央部縦断面図、第２図はケーブル端末支持機
構を示す断面図、第３図はケーブル端末部を取り外した
状態の中央部縦断面図、第４図はこの考案の別例を示す
要部の拡大断面図、第５図はこの考案のさらに別例を示
す要部の拡大断面図である。 １…磁器碍管、1a…貫通孔、４…電線受け台、７…支持
ボルト、８…クランプ金具、９…ベース金具、10…電
線、11…導電性釉薬層、12…中心導体、13…筒形接触
子、14…導電材としての導電性ゴム、16…ケーブル、17
…ケーブル端末部、18…端末支持機構、19…中継導体、
20…差し込み端子、21,22…外部保護層、25…支持枠、2
6…ロッド、27…押圧金具、28…ばね。FIG. 1 is a longitudinal sectional view of a central portion showing an embodiment in which the present invention is applied to a branch insulator device, FIG. 2 is a sectional view showing a cable terminal supporting mechanism, and FIG. 3 is a state in which the cable terminal portion is removed. FIG. 4 is an enlarged cross-sectional view of a central portion of the present invention, FIG. 4 is an enlarged sectional view of an essential portion showing another example of the present invention, and FIG. 5 is an enlarged sectional view of an essential portion showing another example of the present invention. DESCRIPTION OF SYMBOLS 1 ... Porcelain porcelain tube, 1a ... Through hole, 4 ... Electric wire pedestal, 7 ... Support bolt, 8 ... Clamp metal fitting, 9 ... Base metal fitting, 10 ... Electric wire, 11 ... Conductive glaze layer, 12 ... Central conductor, 13 ... Tube Shaped contactor, 14 ... Conductive rubber as conductive material, 16 ... Cable, 17
… Cable end, 18… Terminal support mechanism, 19… Relay conductor,
20 ... Insert terminal, 21,22 ... External protective layer, 25 ... Support frame, 2
6 ... Rod, 27 ... Press fitting, 28 ... Spring.
Claims (1)
貫通孔に、中心導体を挿通し、該中心導体と前記導電性
釉薬層との間の空隙部に弾力性に富む導電材を弾発的に
嵌入して介在させ、前記の中心導体と導電性釉薬との電
位を同電位としたことを特徴とする中心導体を備えた導
体接続用碍子構造。1. A conductive material having a conductive glaze layer formed on an inner peripheral surface thereof, wherein a central conductor is inserted into a through hole of a porcelain insulator, and a void portion between the central conductor and the conductive glaze layer has high elasticity. A conductor-connecting insulator structure having a central conductor, characterized in that the material is elastically fitted and interposed so that the central conductor and the conductive glaze have the same potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090530U JPH0719063Y2 (en) | 1988-07-07 | 1988-07-07 | Insulator structure for conductor connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988090530U JPH0719063Y2 (en) | 1988-07-07 | 1988-07-07 | Insulator structure for conductor connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214615U JPH0214615U (en) | 1990-01-30 |
| JPH0719063Y2 true JPH0719063Y2 (en) | 1995-05-01 |
Family
ID=31315046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988090530U Expired - Lifetime JPH0719063Y2 (en) | 1988-07-07 | 1988-07-07 | Insulator structure for conductor connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719063Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161718U (en) * | 1981-03-31 | 1982-10-12 |
-
1988
- 1988-07-07 JP JP1988090530U patent/JPH0719063Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214615U (en) | 1990-01-30 |
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