JPH07249332A - Arrester - Google Patents

Arrester

Info

Publication number
JPH07249332A
JPH07249332A JP4023794A JP4023794A JPH07249332A JP H07249332 A JPH07249332 A JP H07249332A JP 4023794 A JP4023794 A JP 4023794A JP 4023794 A JP4023794 A JP 4023794A JP H07249332 A JPH07249332 A JP H07249332A
Authority
JP
Japan
Prior art keywords
skirt
porcelain
lightning arrester
insulator
cap
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
JP4023794A
Other languages
Japanese (ja)
Inventor
Yukiya Sakuraba
幸哉 桜庭
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co 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 Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP4023794A priority Critical patent/JPH07249332A/en
Publication of JPH07249332A publication Critical patent/JPH07249332A/en
Pending legal-status Critical Current

Links

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  • Insulators (AREA)

Abstract

PURPOSE:To suppress leak current and pulsed current stained without composing an arrester in a double skirt structure. CONSTITUTION:A skirt part 1c consisting of a flange part 1a and a first cylindrical part 1b is formed in an insulator pipe 1 made of a ceramic insulator. A shade member 8 consisting of a second cylindrical part 8a and a shade part 8b and made of a polymer insulator is installed in the position in the inside of the skirt part 8.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は避雷器に関し、碍管をシ
ングルスカートの構成にしたものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightning arrester in which a porcelain insulator has a single skirt structure.

【0002】[0002]

【従来の技術】我が国は四方を海に囲まれていることか
ら、柱上に設置する配電用の避雷器は季節風や台風によ
り潮風を直接に受け、塩害を受け易い環境にある。この
ため、図3に示すように、スカート部を重ねて形成する
ことによりダブルスカートにして沿面距離を長くしかつ
汚損しにくくした避雷器がある。
2. Description of the Related Art Since Japan is surrounded on all sides by the sea, distribution arresters installed on poles are subject to salt winds due to seasonal winds and typhoons, and are susceptible to salt damage. Therefore, as shown in FIG. 3, there is a lightning arrester in which a skirt portion is formed to be a double skirt to increase the creepage distance and prevent contamination.

【0003】図中、1は素子を収容した磁器碍子、2は
磁器碍子1の下部に形成したスカート部、3は線路側端
子、4は接地側端子、5は取付バンド、6はキャップ、
7は絶縁碍子である。
In the drawing, 1 is a porcelain insulator containing elements, 2 is a skirt portion formed under the porcelain insulator 1, 3 is a line side terminal, 4 is a ground side terminal, 5 is a mounting band, 6 is a cap,
Reference numeral 7 is an insulator.

【0004】長いスカート部を形成したのは以下の理由
による。即ち、長いスカート部を設けると、雨水等がス
カート部の奥まではいり込まないためスカート部の内部
の奥まで汚損されることはなく、スカート部の奥が濡れ
ることがないために磁器碍子の表面抵抗が高い状態に維
持され、汚損時の漏れ電流を小さくすることができるか
らである。
The reason why the long skirt portion is formed is as follows. In other words, if a long skirt is provided, rainwater will not enter the interior of the skirt, so the interior of the skirt will not be contaminated and the interior of the skirt will not get wet. This is because the resistance is maintained in a high state and the leakage current at the time of contamination can be reduced.

【0005】次に、長いスカート部を2つ形成すること
なくシングルスカートにしてもよいのではないかという
考え方もある。しかし、長いスカート部が単一の場合
は、塩水等の汚損液のかかり具合によっては短時間の閃
絡が発生し、パルス状の大電流の発生する頻度が大き
い。一方、長いスカート部を2つ形成すれば2つのスカ
ート部で同時に閃絡が生じる確率は小さく、パルス電流
の発生を抑制できることになる。以上のことから、漏れ
電流だけでなくパルス電流の発生をも抑えるために長い
スカート部を2つ設けたダブルスカートにして閃絡の確
率を小さくしたのである。
Next, there is an idea that a single skirt may be formed without forming two long skirts. However, if the single long skirt portion is used, a short-time flashover occurs depending on the degree to which the contaminated liquid such as salt water is applied, and a large pulse-like current is frequently generated. On the other hand, if two long skirts are formed, the probability of flashover occurring simultaneously in the two skirts is small, and the generation of pulse current can be suppressed. From the above, in order to suppress not only the leakage current but also the generation of the pulse current, the double skirt provided with two long skirts is used to reduce the probability of flashover.

【0006】[0006]

【発明が解決しようとする課題】ところが、このように
磁器碍子に長いスカート部を重ねて2つ形成すること
は、製造上の困難を伴うことから避雷器がコスト高にな
る。
However, forming the two long skirts on the porcelain insulator in this way causes manufacturing difficulties, and thus the cost of the arrester becomes high.

【0007】そこで本発明は、斯る課題を解決した避雷
器を提供することを目的とする。
Therefore, an object of the present invention is to provide a lightning arrester that solves the above problems.

【0008】[0008]

【課題を解決するための手段】斯る目的を達成するため
の本発明の構成は、略筒形状の碍管の内部に素子を積層
した避雷器において、前記碍管を磁器碍子で形成すると
ともに、半径方向へ伸びるフランジ部とフランジ部の外
周から軸心に沿って伸びる第一筒部とからなるスカート
部を形成し、第二筒部と第二筒部の外側に軸心に沿って
1又は2以上設けた略リング状の笠部とを高分子碍子に
よって一体に成形して笠部材とし、碍管におけるスカー
ト部の内側に笠部材を装着したことを特徴とする。
The structure of the present invention for achieving the above object is to provide a lightning arrester in which elements are laminated inside a substantially cylindrical porcelain insulator, the porcelain insulator being formed of a porcelain insulator, and a radial direction. Forming a skirt portion consisting of a flange portion extending to the outer periphery of the flange portion and a first tubular portion extending from the outer periphery of the flange portion along the axial center, and one or more or more along the axial center outside the second tubular portion and the second tubular portion. It is characterized in that the provided substantially ring-shaped cap portion is integrally molded with a polymer insulator to form a cap member, and the cap member is mounted inside the skirt portion of the porcelain bushing.

【0009】[0009]

【作用】スカート部だけでなく笠部が存在することか
ら、スカート部の奥の方へは汚損液がはいり込みにく
く、碍管の表面に濡れない部分が確保され、漏れ電流を
小さくすることができる。
[Function] Since not only the skirt portion but also the cap portion is present, it is difficult for the contaminated liquid to enter the depths of the skirt portion, and a portion where the surface of the porcelain insulator is not wetted is secured, and leakage current can be reduced. .

【0010】スカート部によって太陽光線が遮断される
ため、笠部材は耐候性劣化を生じない。また、笠部材の
表面に水分が供給されないので、トラッキングやエロー
ジョンが生じない。
Since the sun rays are blocked by the skirt, the shade member does not deteriorate in weather resistance. Further, since moisture is not supplied to the surface of the cap member, tracking and erosion do not occur.

【0011】[0011]

【実施例】以下、本発明を図面に示す実施例に基づいて
詳細に説明する。なお、本実施例は従来の避雷器の一部
を改良したものなので、従来と同一部分には同一符号を
付して説明を省略し、異なる部分のみを説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. Since this embodiment is an improvement of a part of the conventional lightning arrester, the same parts as those of the prior art are designated by the same reference numerals, and the description thereof will be omitted. Only different parts will be described.

【0012】(a)実施例1 本発明による避雷器の実施例1を、図1に示す。図のよ
うに碍管1にはスカート部1cが形成されている。スカ
ート部1cは、碍管1の上部から半径方向での外側へ伸
びるフランジ部1aと、フランジ部1aの外周から軸心
に沿って下方へ伸びる第一筒部1bとで構成される。こ
の碍管1は磁器碍子によって形成されている。
(A) First Embodiment FIG. 1 shows a first embodiment of a lightning arrester according to the present invention. As shown, a skirt portion 1c is formed on the porcelain bushing 1. The skirt portion 1c is composed of a flange portion 1a extending from the upper portion of the porcelain bushing 1 to the outside in the radial direction, and a first cylindrical portion 1b extending downward from the outer periphery of the flange portion 1a along the axis. The porcelain insulator 1 is formed of a porcelain insulator.

【0013】碍管1におけるスカート部1cの内部には
笠部材8が装着されている。笠部材8は高分子碍子によ
って形成されており、碍管1に嵌め込むための第二筒部
8aと、第二筒部8aから半径方向の外側へ向かって突
出するリング状の本実施例では外径寸法が段階的に異な
る3枚の笠部8bとで構成される。笠部材8は熱収縮性
を有するポリマーにより形成されている。
A cap member 8 is mounted inside the skirt portion 1c of the porcelain bushing 1. The cap member 8 is formed of a polymer insulator, and has a second tubular portion 8a for fitting into the porcelain bushing 1 and a ring-shaped outer portion projecting outward from the second tubular portion 8a in the radial direction in the present embodiment. It is composed of three cap portions 8b whose diameters are different stepwise. The cap member 8 is formed of a polymer having heat shrinkability.

【0014】次に、斯かる避雷器の作用を説明する。ス
カート部が単一のシングルスカートのものでは、電気的
に閃絡しないようにスカート部の内周面と碍管の外周面
との距離を大きくするとスカート部の内部に汚損液がは
いり込み易く濡れない部分を確保できない。これに対し
て本発明のようにスカート部の内部に笠部材を設けると
笠部8bの上方に濡れない部分を確保することができる
ことになる。
Next, the operation of the lightning arrester will be described. If the skirt has a single skirt, if the distance between the inner peripheral surface of the skirt and the outer peripheral surface of the porcelain tube is increased to prevent electrical flashover, the fouling liquid will easily get inside the skirt and will not get wet. I can't secure the part. On the other hand, when the cap member is provided inside the skirt portion as in the present invention, a portion which is not wet can be secured above the cap portion 8b.

【0015】また、第一筒部1bと笠部8bとの距離L
を電気的に閃絡しない大きさに設定することにより、パ
ルス電流の発生を抑えることができる。
The distance L between the first cylindrical portion 1b and the cap portion 8b
The generation of the pulse current can be suppressed by setting the size so that it does not electrically flash.

【0016】一方、笠部のみを形成した碍管は、電圧の
印加され得る状態でかつ汚損され得る状態で屋外で使用
すると、太陽光を受けて耐候性劣化したり、表面漏れ電
流によりトラッキングやエロージョンを生じる。これに
対して本発明による避雷器では笠部8bがスカート部1
cで覆われるため、笠部8bに太陽光が直接に当たるこ
とはなく、汚損時の漏れ電流も微小でありかつ水分が表
面に供給されないので、トラッキングやエロージョンが
生じることはない。このようなことから、耐候性,耐ト
ラッキング性,耐エロージョン性に対して劣る高分子碍
子を適用することが可能になるのである。
On the other hand, when the porcelain tube formed with only the cap portion is used outdoors in a state where a voltage can be applied and it is contaminated, weather resistance deteriorates due to sunlight, and tracking and erosion due to surface leakage current. Cause On the other hand, in the lightning arrester according to the present invention, the cap portion 8b has the skirt portion 1
Since it is covered with c, sunlight does not directly hit the cap portion 8b, leakage current at the time of stain is small, and water is not supplied to the surface, so that tracking and erosion do not occur. From this, it is possible to apply a polymer insulator having poor weather resistance, tracking resistance and erosion resistance.

【0017】(b)実施例2 本発明による避雷器の実施例2を図2に示す。本実施例
は笠部8bの数を2にすると共に外径寸法を同一にした
点を除いては実施例1と同じなので、同一部分には同一
符号を付して説明を省略する。
(B) Second Embodiment FIG. 2 shows a second embodiment of the arrester according to the present invention. This embodiment is the same as the first embodiment except that the number of cap portions 8b is two and the outer diameter dimensions are the same, so the same parts are denoted by the same reference numerals and the description thereof is omitted.

【0018】[0018]

【発明の効果】以上の説明からわかるように、本発明に
よる避雷器によれば碍管に形成するスカート部が単一な
のでダブルスカートにする場合に比べて低コストで済
む。また、笠部を形成する材料に高分子碍子を用いるこ
とができるので、避雷器を軽量化することができる。
As can be seen from the above description, the lightning arrester according to the present invention has a single skirt portion formed on the porcelain insulator, so that the cost is lower than that in the case of using a double skirt. Further, since the polymer insulator can be used as the material forming the cap portion, the lightning arrester can be made lighter.

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

【図1】本発明による避雷器の実施例1を示す構成図。FIG. 1 is a configuration diagram showing a first embodiment of a lightning arrester according to the present invention.

【図2】本発明による避雷器の実施例2を示す構成図。FIG. 2 is a configuration diagram showing a second embodiment of a lightning arrester according to the present invention.

【図3】従来の避雷器の構成図。FIG. 3 is a configuration diagram of a conventional lightning arrester.

【符号の説明】[Explanation of symbols]

1…碍管 1a…フランジ部 1b…第一筒部 1c…スカート部 8…笠部材 8a…第二筒部 8b…笠部 DESCRIPTION OF SYMBOLS 1 ... Insulator pipe 1a ... Flange part 1b ... 1st cylinder part 1c ... Skirt part 8 ... Cap member 8a ... 2nd cylinder part 8b ... Cap part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 略筒形状の碍管の内部に素子を積層した
避雷器において、 前記碍管を磁器碍子で形成するとともに、半径方向へ伸
びるフランジ部とフランジ部の外周から軸心に沿って伸
びる第一筒部とからなるスカート部を形成し、第二筒部
と第二筒部の外側に軸心に沿って1又は2以上設けた略
リング状の笠部とを高分子碍子によって一体に成形して
笠部材とし、碍管におけるスカート部の内側に笠部材を
装着したことを特徴とする避雷器。
1. A lightning arrester in which elements are laminated inside a substantially cylindrical porcelain bushing, wherein the porcelain bushing is formed of a porcelain porcelain, and a flange portion extending in the radial direction and a first portion extending from the outer periphery of the flange portion along the axial center. A skirt portion composed of a tubular portion is formed, and a second tubular portion and a substantially ring-shaped cap portion provided on the outside of the second tubular portion along the axial center are formed integrally with a polymer insulator. A lightning arrester characterized in that the cap member is attached to the inside of the skirt portion of the porcelain bushing.
JP4023794A 1994-03-11 1994-03-11 Arrester Pending JPH07249332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4023794A JPH07249332A (en) 1994-03-11 1994-03-11 Arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4023794A JPH07249332A (en) 1994-03-11 1994-03-11 Arrester

Publications (1)

Publication Number Publication Date
JPH07249332A true JPH07249332A (en) 1995-09-26

Family

ID=12575120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4023794A Pending JPH07249332A (en) 1994-03-11 1994-03-11 Arrester

Country Status (1)

Country Link
JP (1) JPH07249332A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105680372A (en) * 2016-04-15 2016-06-15 国网上海市电力公司 Insulating shielding cover for 10kV cable lead wire live-line lapping
JP2018067540A (en) * 2016-10-18 2018-04-26 セディベ・エス・ア Overhead power line insulator having leak current detector for protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105680372A (en) * 2016-04-15 2016-06-15 国网上海市电力公司 Insulating shielding cover for 10kV cable lead wire live-line lapping
JP2018067540A (en) * 2016-10-18 2018-04-26 セディベ・エス・ア Overhead power line insulator having leak current detector for protection

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