JP2003100418A - Gap adjusting gauge and mounting method of lightning protection device using the same - Google Patents
Gap adjusting gauge and mounting method of lightning protection device using the sameInfo
- Publication number
- JP2003100418A JP2003100418A JP2001285293A JP2001285293A JP2003100418A JP 2003100418 A JP2003100418 A JP 2003100418A JP 2001285293 A JP2001285293 A JP 2001285293A JP 2001285293 A JP2001285293 A JP 2001285293A JP 2003100418 A JP2003100418 A JP 2003100418A
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- Japan
- Prior art keywords
- side electrode
- gap
- lightning arrester
- adjusting gauge
- gap adjusting
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はギャップ調整ゲージ
及びこれを用いた避雷装置の取付方法に関し、詳しく
は、雷サージ等による異常電圧の発生時、送配電線の周
辺設備を雷サージ等から保護するための避雷装置を、ギ
ャップ調整ゲージによりギャップ長を規制した状態で碍
子に付設する取付方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap adjusting gauge and a method of mounting a lightning arrester using the same, and more specifically, protects peripheral equipment of a power transmission and distribution line from lightning surge or the like when abnormal voltage occurs due to lightning surge or the like. The present invention relates to a mounting method for attaching a lightning arrester to a porcelain insulator with the gap length regulated by a gap adjusting gauge.
【０００２】[0002]
【従来の技術】一般的に、高圧や特別高圧の送配電線
（絶縁被覆電線）を支持する碍子付近への落雷時、雷サ
ージ等による異常電圧が発生した際、碍子を含む周辺設
備を雷サージ等から保護するため、碍子の接地側と送配
電線との間に避雷装置を取り付けている。この避雷装置
により雷撃後の続流を遮断して雷サージ過電圧を抑制す
るようにしている。2. Description of the Related Art Generally, when lightning strikes near an insulator that supports high-voltage or extra-high-voltage transmission / distribution wires (insulation-covered wires), or when abnormal voltage due to lightning surge occurs, peripheral equipment including the insulator is thundered. A lightning arrester is installed between the grounding side of the insulator and the power transmission / distribution line to protect it from surges. This lightning arrester shuts off the follow-up current after a lightning stroke to suppress the lightning surge overvoltage.
【０００３】前記避雷装置４は、サージ電圧に対しては
低抵抗、送配電線の通常の対地電圧に対しては高抵抗を
示す非直線性の電流電圧特性を有するＺｎＯ等の限流素
子（図示せず）を内蔵させた構造を具備し、図８に示す
ように送配電線１を支持する碍子２に付設される。その
送配電線１を支持する碍子２は、電柱の腕金９にボルト
止め等により取り付けられており、この碍子２の下部に
ある接地側部位に取り付け金具３を介して避雷装置４が
取り付けられる。また、碍子２の上部はバインド線５に
より送配電線１に縛着されている。The lightning arrester 4 has a current limiting element such as ZnO having a non-linear current-voltage characteristic that exhibits low resistance to surge voltage and high resistance to normal ground voltage of transmission and distribution lines. (Not shown) is built in and is attached to the insulator 2 which supports the power transmission and distribution line 1 as shown in FIG. The insulator 2 that supports the power transmission / distribution line 1 is attached to the armrest 9 of the electric pole by bolting or the like, and the lightning arrester 4 is attached to the grounding side portion under the insulator 2 via the attachment fitting 3. . Further, the upper portion of the insulator 2 is bound to the power transmission / distribution line 1 by a bind wire 5.
【０００４】この避雷装置４は、前記限流素子を絶縁外
被体６で被覆し、その限流素子と電気的に接続された接
地側電極７と課電側電極８とを前記絶縁外被体６の上下
から導出した構造を具備し、その接地側電極７を、碍子
２の接地側部位から延びる取り付け金具３の先端にねじ
止め等により固着し、起立保持した状態で取り付けられ
る。In this lightning protection device 4, the current limiting element is covered with an insulating jacket 6 and the grounding side electrode 7 and the voltage applying side electrode 8 electrically connected to the current limiting element are covered with the insulating jacket. The body 6 has a structure derived from the upper and lower sides, and the ground side electrode 7 is fixed to the tip of a mounting member 3 extending from the ground side portion of the insulator 2 by screwing or the like, and is mounted in a standing state.
【０００５】一方、碍子２による送配電線１の支持部位
近傍には、その送配電線１の絶縁被覆部分を突き破って
芯線と電気的に接続した電線側電極（図示せず）が設け
られている。この電線側電極は、絶縁カバー１０内に収
納された構造を有し、その絶縁カバー１０の下部に形成
された放電孔の上端部に前記電線側電極が配置され、放
電孔を介して電線側電極と対向するように避雷装置４の
課電側電極８が配置されている。この避雷装置４の課電
側電極８（以下、素子側電極と称す）と送配電線１の電
線側電極との間で、気中間隙と放電孔を介して所定のギ
ャップ長を有する放電ギャップ１１が形成されている。On the other hand, an electric wire side electrode (not shown) is provided in the vicinity of the supporting portion of the power transmission and distribution wire 1 by the insulator 2 and breaks through the insulating coating portion of the power transmission and distribution wire 1 and is electrically connected to the core wire. There is. This wire-side electrode has a structure housed in an insulating cover 10, and the wire-side electrode is arranged at an upper end portion of a discharge hole formed in a lower portion of the insulating cover 10, and the wire-side electrode is provided through the discharge hole. The charge-side electrode 8 of the lightning arrester 4 is arranged so as to face the electrode. A discharge gap having a predetermined gap length between the charge-side electrode 8 (hereinafter, referred to as an element-side electrode) of the lightning arrester 4 and the wire-side electrode of the transmission / distribution line 1 via the air gap and the discharge hole. 11 is formed.
【０００６】雷サージ等による過電圧が送配電線１に印
加されると、その送配電線１に設けられた電線側電極か
らフラッシュオーバーし、放電ギャップ１１を介して避
雷装置４の素子側電極８に捕捉される。その避雷装置４
では、雷サージ等による過電圧でもって限流素子が低抵
抗値となってこれを接地側電極７、取り付け金具３およ
び腕金９を介して大地に逃がし、これに伴う続流が抑制
遮断されるので続流アークによる断線などが防止され
る。なお、前記雷サージ等による過電圧が消滅すれば、
限流素子が高抵抗値となって通常の対地電圧を遮断す
る。この避雷装置４の弁作用により碍子２を含む周辺設
備を雷サージ等から保護している。When an overvoltage due to a lightning surge or the like is applied to the transmission / distribution line 1, flashover occurs from the line-side electrode provided on the transmission / distribution line 1, and the element-side electrode 8 of the lightning arrester 4 is passed through the discharge gap 11. Captured by. The lightning arrester 4
Then, the current limiting element has a low resistance value due to an overvoltage due to a lightning surge or the like, and this is released to the ground through the ground electrode 7, the mounting bracket 3 and the arm 9 and the follow current associated therewith is cut off. Therefore, disconnection due to the follow-up arc is prevented. If the overvoltage caused by the lightning surge disappears,
The current limiting element has a high resistance value and shuts off the normal ground voltage. Due to the valve action of the lightning protection device 4, peripheral equipment including the insulator 2 is protected from a lightning surge or the like.
【０００７】[0007]
【発明が解決しようとする課題】ところで、前述した避
雷装置４の取り付け構造では、避雷装置４の素子側電極
８を一方の放電電極とし、かつ、送配電線１の電線側電
極を他方の放電電極とし、両放電電極間に所定のギャッ
プ長を有する放電ギャップ１１を形成している。この放
電ギャップ１１の放電電圧はギャップ長の大小により変
動することから、碍子２を含む周辺設備を保護すべき点
で、それら周辺設備の絶縁耐力との協調をとるために
は、前述した雷サージ等による過電圧に対して迅速に動
作して雷サージ等による過電圧を抑制できるようにギャ
ップ長を可能なかぎり小さくする必要がある。In the mounting structure of the lightning arrester 4 described above, the element side electrode 8 of the lightning arrester 4 is used as one discharge electrode, and the wire side electrode of the transmission and distribution line 1 is used as the other discharge. A discharge gap 11 having a predetermined gap length is formed between the discharge electrodes as an electrode. Since the discharge voltage of the discharge gap 11 varies depending on the size of the gap length, the peripheral equipment including the insulator 2 should be protected. In order to cooperate with the dielectric strength of the peripheral equipment, the above-mentioned lightning surge It is necessary to make the gap length as small as possible so as to quickly operate against an overvoltage caused by, for example, and suppress an overvoltage caused by a lightning surge or the like.
【０００８】一方、避雷装置４は、電柱の腕金９に取り
付けた碍子２の接地側部位に取り付け金具３を介して付
設される。この取り付け金具３は碍子２や避雷装置４の
大きさ等の諸条件から、所定のギャップ長が得られるよ
うに碍子２に対する避雷装置４の取り付けに適合した寸
法形状のものが予め選定される。その取り付け金具３を
用いて現地で作業員が避雷装置４を碍子２に付設するよ
うにしている。On the other hand, the lightning arrester 4 is attached to the ground side portion of the insulator 2 attached to the armrest 9 of the electric pole via the attachment metal fitting 3. The fitting 3 is preliminarily selected to have a size and shape suitable for mounting the lightning arrester 4 on the insulator 2 so that a predetermined gap length can be obtained from various conditions such as the sizes of the insulator 2 and the lightning arrester 4. Workers attach the lightning arrester 4 to the insulator 2 locally by using the fittings 3.
【０００９】しかしながら、作業員が現地にて実際に避
雷装置４を碍子２に取り付けてみると、碍子２や避雷装
置４の寸法公差などにより放電ギャップ１１が所定のギ
ャップ長となっていないことがあり、避雷装置４におい
て所望の放電特性が得られないというのが現状である。
特に、前述したようにギャップ長が小さくなると、所定
のギャップ長とするための調整作業も非常に困難とな
る。However, when the worker actually mounts the lightning arrester 4 on the insulator 2, the discharge gap 11 may not have a predetermined gap length due to the dimensional tolerances of the insulator 2 and the lightning arrester 4. In the present situation, the lightning arrester 4 cannot obtain a desired discharge characteristic.
In particular, if the gap length becomes small as described above, it becomes very difficult to adjust the gap length.
【００１０】また、送配電線を支持する碍子自体に放電
ギャップを一体化した避雷装置を装着したユニット構造
のものもある。つまり、碍子の一端からアークホーンを
導出すると共にその他端に避雷装置を装着し、アークホ
ーンと避雷装置との間に所定のギャップ長を有する放電
ギャップを形成したものである。しかしながら、このよ
うなユニット構造の場合、避雷装置のみを既存の碍子に
付設することができないという問題があった。There is also a unit structure in which a lightning arrester in which a discharge gap is integrated is mounted on the insulator itself which supports the transmission and distribution lines. That is, the arc horn is led out from one end of the insulator and the lightning arrester is attached to the other end to form a discharge gap having a predetermined gap length between the arc horn and the lightning arrester. However, in the case of such a unit structure, there is a problem that only the lightning arrester cannot be attached to the existing insulator.
【００１１】そこで、本発明は前記問題点に鑑みて提案
されたもので、その目的とするところは、取り付け現場
などにおいても、簡便な手段により所定のギャップ長が
得られるように避雷装置を碍子に付設できるようにする
ことにある。Therefore, the present invention has been proposed in view of the above problems, and an object thereof is to provide a lightning arrester with a lightning arrester so that a predetermined gap length can be obtained by a simple means even at an installation site or the like. It is to be able to attach to.
【００１２】[0012]
【課題を解決するための手段】前記目的を達成するため
の技術的手段として、本発明に係るギャップ調整ゲージ
は、電線を支持する碍子の接地側部位に取り付け金具を
介して付設された避雷装置の素子側電極に着脱自在に装
着され、前記避雷装置の素子側電極と前記電線に設けら
れた電線側電極との間に形成される放電ギャップのギャ
ップ長を規制することを特徴とする。As a technical means for achieving the above object, a gap adjusting gauge according to the present invention is a lightning protection device attached to a ground side portion of an insulator supporting an electric wire via a mounting metal fitting. Is detachably attached to the element-side electrode, and the gap length of the discharge gap formed between the element-side electrode of the lightning arrester and the wire-side electrode provided on the wire is regulated.
【００１３】このギャップ調整ゲージを避雷装置の素子
側電極に装着するだけで、放電ギャップにおけるギャッ
プ長が小さい場合でも簡単にそのギャップ長を所定の規
定値に設定することができる。このギャップ長の調整後
は、ギャップ調整ゲージが着脱自在となっていることか
ら、そのギャップ調整ゲージを素子側電極から取り外せ
ばよい。Even if the gap length in the discharge gap is small, it is possible to easily set the gap length to a predetermined specified value only by mounting the gap adjusting gauge on the element side electrode of the lightning arrester. After the adjustment of the gap length, the gap adjusting gauge is detachable, so the gap adjusting gauge may be removed from the element-side electrode.
【００１４】前記ギャップ調整ゲージは、前記避雷装置
の素子側電極を抱持するようにその素子側電極に着脱自
在に嵌合され、前記ギャップ長を規制する所定の長さを
有する絶縁性の筒状部材からなり、その側壁部の一部
に、前記素子側電極から離脱させて側方への引き抜きを
可能とする開口部を形成した構造を具備する。ここで、
前記ギャップ長を規制する所定の長さとは、筒状部材の
基端部を素子側電極に装着してその先端部を電線側電極
に対して位置合わせした状態で、素子側電極の先端と筒
状部材の先端部との離隔距離が前記ギャップ長となるよ
うに設定されていることを意味する。The gap adjusting gauge is detachably fitted to the element side electrode of the lightning arrester so as to hold the element side electrode, and is an insulating tube having a predetermined length for regulating the gap length. It has a structure in which an opening is formed in a part of the side wall portion of the element-shaped member, the opening being formed so as to be detached from the element-side electrode and can be pulled out to the side. here,
The predetermined length that regulates the gap length means that the base end of the tubular member is attached to the element-side electrode and its tip is aligned with the wire-side electrode, and the tip of the element-side electrode and the tube It means that the distance from the tip of the strip-shaped member is set to be the gap length.
【００１５】このような構造とすることにより、ギャッ
プ調整ゲージを避雷装置の素子側電極に装着した状態で
その先端部を電線側電極に対して位置合わせするだけで
ギャップ長を所定の規定値に設定することができる。ま
た、ギャップ長の調整後は、筒状部材の開口部を利用し
てギャップ調整ゲージを側方へ引き抜くことにより容易
に取り外すことができる。なお、筒状部材の側壁部の反
開口部側部位に、その筒状部材を側方へ引き抜くための
ストラップを装着すれば、ギャップ調整ゲージの取り外
しがより一層容易となる。With such a structure, the gap length is set to a predetermined specified value simply by aligning the tip of the gap adjusting gauge with the wire-side electrode while the gap-adjusting gauge is attached to the element-side electrode of the lightning arrester. Can be set. Further, after adjusting the gap length, the gap adjusting gauge can be easily removed by pulling out the gap adjusting gauge laterally using the opening of the tubular member. If a strap for laterally pulling out the tubular member is attached to the side wall of the tubular member opposite to the opening, the gap adjusting gauge can be removed more easily.
【００１６】このギャップ調整ゲージを使用した本発明
方法は、電線を支持する碍子の接地側部位に避雷装置を
取り付け金具を介して付設し、前記避雷装置の素子側電
極を、前記電線に設けられた電線側電極に放電ギャップ
を介して対向配置するに際して、前記避雷装置の素子側
電極に着脱可能なギャップ調整ゲージの基端部を装着
し、そのギャップ調整ゲージの先端部を電線側電極に対
して位置合わせすることにより前記放電ギャップのギャ
ップ長を規制した状態で避雷装置を位置決めし、その
後、前記ギャップ調整ゲージを引き抜き除去することを
特徴とする。In the method of the present invention using this gap adjusting gauge, a lightning arrester is attached to a ground side portion of an insulator supporting an electric wire via a mounting metal fitting, and an element side electrode of the lightning arrester is provided on the electric wire. When arranging the wire side electrode opposite to the wire side electrode via the discharge gap, the base end of the removable gap adjusting gauge is attached to the element side electrode of the lightning arrester, and the tip of the gap adjusting gauge is attached to the wire side electrode. The lightning arrester is positioned in a state in which the gap length of the discharge gap is regulated by aligning the discharge gap, and then the gap adjusting gauge is pulled out and removed.
【００１７】本発明方法では、碍子に取り付け金具を介
して装着された避雷装置の素子側電極にギャップ調整ゲ
ージを予め取り付けておき、前記取り付け金具をスライ
ドさせてギャップ調整ゲージの先端部を電線側電極に対
して位置合わせする。これにより、避雷装置の素子側電
極と送配電線の電線側電極との間のギャップ長を所定の
規定値に設定することができ、その後、ギャップ調整ゲ
ージを引き抜き除去すれば、避雷装置の取り付けが完了
する。このギャップ調整ゲージを用いることにより、碍
子などの寸法公差によるギャップ長の調整作業が不要と
なり、取り付け現場などにおいても、簡便な手段により
所望の放電特性を有するように避雷装置を碍子に付設す
ることが実現できる。In the method of the present invention, the gap adjusting gauge is attached in advance to the element side electrode of the lightning arrester mounted on the insulator through the attaching metal fitting, and the attaching metal fitting is slid to move the tip of the gap adjusting gauge to the electric wire side. Align with the electrode. As a result, the gap length between the element side electrode of the lightning arrester and the wire side electrode of the transmission and distribution line can be set to a specified value, and then the gap adjustment gauge can be pulled out and removed to install the lightning arrester. Is completed. By using this gap adjustment gauge, there is no need to adjust the gap length due to the dimensional tolerance of the insulator, etc., and even at the installation site, etc., attach a lightning arrester to the insulator so that it has the desired discharge characteristics by a simple means. Can be realized.
【００１８】[0018]
【発明の実施の形態】本発明の実施形態を以下に詳述す
る。なお、図８と同一部分には同一参照符号を付す。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. The same parts as those in FIG. 8 are designated by the same reference numerals.
【００１９】図１は本発明の実施形態において、高圧や
特別高圧の送配電線１（絶縁被覆電線）を支持する碍子
２に避雷装置４を付設した状態を例示する。送配電線１
を支持する碍子２は、電柱の腕金９にボルト止め等によ
り取り付けられており、この碍子２の下部にある接地側
部位７に取り付け金具１２を介して避雷装置４が取り付
けられる。また、碍子２の上部はバインド線５により送
配電線１に縛着されている。碍子２による送配電線１の
支持部位近傍には、図２に示すようにその送配電線１の
絶縁被覆部分１７を突き破って芯線１８と電気的に接続
した電線側電極１９が設けられている。この電線側電極
１９は、絶縁カバー１０内に収納された構造を有し、そ
の電線側電極１９の下部に絶縁部材２０が嵌着されてそ
の絶縁部材２０に放電孔２１が形成されている。この放
電孔２１の下端部は素子側電極８との気中間隙に開口
し、その上端奥部に電線側電極１９が露呈して配置され
ている（図３参照）。FIG. 1 illustrates a state in which, in the embodiment of the present invention, a lightning arrester 4 is attached to an insulator 2 that supports a high-voltage or extra-high-voltage transmission / distribution wire 1 (insulation-coated wire). Transmission and distribution line 1
The insulator 2 which supports the lightning protection device 4 is attached to the armor 9 of the electric pole by bolting or the like, and the lightning arrester 4 is attached to the ground side portion 7 at the lower part of the insulator 2 via the attachment fitting 12. Further, the upper portion of the insulator 2 is bound to the power transmission / distribution line 1 by a bind wire 5. As shown in FIG. 2, a wire-side electrode 19 is provided near the supporting portion of the power transmission / distribution wire 1 by the insulator 2, and the wire-side electrode 19 pierces through the insulating coating portion 17 of the power distribution wire 1 and is electrically connected to the core wire 18. . The electric wire side electrode 19 has a structure housed in the insulating cover 10, and an insulating member 20 is fitted under the electric wire side electrode 19 to form a discharge hole 21 in the insulating member 20. The lower end of the discharge hole 21 is opened in the air gap with the element-side electrode 8, and the electric wire-side electrode 19 is exposed and arranged in the inner portion of the upper end thereof (see FIG. 3).
【００２０】前記避雷装置４は、サージ電圧に対しては
低抵抗、送配電線の通常の対地電圧に対しては高抵抗を
示す非直線性の電流電圧特性を有するＺｎＯ等の限流素
子を絶縁外被体６で被覆し、その限流素子と電気的に接
続された接地側電極７と素子側電極８とを前記絶縁外被
体６の上下から導出した構造を具備し、その接地側電極
７を、碍子２の接地側部位から延びる取り付け金具１２
の先端にねじ止め等により固着し、起立保持した状態で
取り付けられる。The lightning protection device 4 is a current limiting element such as ZnO having a non-linear current-voltage characteristic that exhibits low resistance to surge voltage and high resistance to normal ground voltage of transmission and distribution lines. The grounding side electrode 7 and the element side electrode 8 which are covered with the insulating jacket 6 and are electrically connected to the current limiting element are provided from above and below the insulating jacket 6, and the grounding side thereof is provided. A mounting bracket 12 that extends the electrode 7 from the grounded side portion of the insulator 2.
It is attached to the tip of the by means of screws, etc., and is attached while standing upright.
【００２１】この避雷装置４の素子側電極８は、絶縁部
材２０に形成された放電孔２１を介して、絶縁カバー１
０内に収納された電線側電極１９と対向するように配置
されている。この避雷装置４の素子側電極８と電線側電
極１９との間では、素子側電極８の上端部と絶縁部材２
０の下端部との間の気中間隙の長さｇと、その絶縁部材
２０の下端部から放電孔２１を介して電線側電極１９の
下端部に達する長さｇ’とを加えた所定のギャップ長Ｇ
を有する放電ギャップ１１が形成されている。The element side electrode 8 of the lightning arrester 4 is provided with the insulating cover 1 through the discharge hole 21 formed in the insulating member 20.
It is arranged so as to face the electric wire side electrode 19 housed in 0. Between the element side electrode 8 and the wire side electrode 19 of the lightning protection device 4, the upper end portion of the element side electrode 8 and the insulating member 2 are provided.
The length g of the air gap between the lower end of the wire 0 and the lower end of the wire member 0 and the length g ′ from the lower end of the insulating member 20 to the lower end of the wire-side electrode 19 via the discharge hole 21 are added. Gap length G
Is formed.
【００２２】前記碍子２の付近への落雷時、雷サージ等
による過電圧が送配電線１に印加されると、その送配電
線１に設けられた電線側電極１９からフラッシュオーバ
ーし、放電ギャップ１１を介して避雷装置４の素子側電
極８に捕捉される。その避雷装置４では、雷サージ等に
よる過電圧でもって限流素子が低抵抗値となってこれを
接地側電極７、取り付け金具１２および腕金９を介して
大地に逃がし、これに伴う続流が抑制遮断されるので続
流アークによる断線などが防止される。なお、前記雷サ
ージ等による過電圧が消滅すれば、限流素子が高抵抗値
となって通常の対地電圧を遮断する。この弁作用により
碍子２を含む周辺設備を雷サージ等から保護している。When an overvoltage due to a lightning surge or the like is applied to the transmission and distribution line 1 at the time of a lightning strike near the insulator 2, the wire side electrode 19 provided on the transmission and distribution line 1 flashes over and the discharge gap 11 It is captured by the element-side electrode 8 of the lightning arrester 4 via. In the lightning arrester 4, the current limiting element has a low resistance value due to an overvoltage due to a lightning surge or the like, and this is released to the ground via the ground side electrode 7, the mounting metal fitting 12 and the arm 9 and a follow-up current accompanying it is generated. Since it is suppressed and cut off, disconnection due to a follow-up arc is prevented. When the overvoltage due to the lightning surge or the like disappears, the current limiting element has a high resistance value and interrupts a normal ground voltage. This valve action protects the peripheral equipment including the insulator 2 from lightning surges and the like.
【００２３】ここで、避雷装置４の素子側電極８と送配
電線１の電線側電極１９との間に形成された放電ギャッ
プ１１の放電電圧はギャップ長Ｇの大小により変動する
ことから、碍子２を含む周辺設備を保護すべき点で、そ
れら周辺設備の絶縁耐力との協調をとるためには、前述
した雷サージ等による過電圧に対して迅速に動作して雷
サージ等による過電圧を抑制できるようにギャップ長Ｇ
を可能なかぎり小さくする必要がある。Here, since the discharge voltage of the discharge gap 11 formed between the element side electrode 8 of the lightning arrester 4 and the wire side electrode 19 of the power transmission and distribution line 1 varies depending on the size of the gap length G, the insulator In order to protect the peripheral equipment including 2 and to cooperate with the dielectric strength of the peripheral equipment, it is possible to quickly operate against the overvoltage due to the above-mentioned lightning surge or the like and suppress the overvoltage due to the lightning surge or the like. So the gap length G
Needs to be as small as possible.
【００２４】そこで、ギャップ長Ｇが小さい場合でも、
そのギャップ長Ｇを所定の規定値に設定することが容易
なようにギャップ調整ゲージ１３を使用する。このギャ
ップ調整ゲージ１３は、図１の破線で示すように避雷装
置４の素子側電極８に着脱自在に装着され、前記避雷装
置４の素子側電極８と送配電線１の電線側電極１９との
間に形成される放電ギャップ１１のギャップ長Ｇを規制
するものである。Therefore, even when the gap length G is small,
The gap adjusting gauge 13 is used so that the gap length G can be easily set to a prescribed value. The gap adjusting gauge 13 is detachably attached to the element side electrode 8 of the lightning protection device 4 as shown by the broken line in FIG. 1, and is connected to the element side electrode 8 of the lightning protection device 4 and the wire side electrode 19 of the transmission and distribution line 1. The gap length G of the discharge gap 11 formed between the two is regulated.
【００２５】前記ギャップ調整ゲージ１３は、例えば図
４および図５（ａ）〜（ｃ）に示すような構造を具備す
る。このギャップ調整ゲージ１３は、避雷装置４の素子
側電極８を抱持するようにその素子側電極８に着脱自在
に嵌合される絶縁性の樹脂製円筒状部材１４からなり、
その側壁部の一部に、避雷装置４の素子側電極８から離
脱させて側方への引き抜きを可能とする開口部１５を形
成した構造を具備する。また、この円筒状部材１４の側
壁部には、ストラップ１６が取り付けられており、ギャ
ップ調整後にはこのストラップ１６を側方へ引っ張るこ
とにより側壁部の開口部１５からギャップ調整ゲージ１
３が離脱可能な構造となっている。The gap adjusting gauge 13 has a structure as shown in FIGS. 4 and 5 (a)-(c), for example. The gap adjusting gauge 13 is composed of an insulating resin cylindrical member 14 detachably fitted to the element side electrode 8 of the lightning arrester 4 so as to hold the element side electrode 8.
An opening 15 is formed in a part of the side wall of the lightning protection device 4 so that the opening 15 can be detached from the element-side electrode 8 of the lightning protection device 4 and can be extracted laterally. A strap 16 is attached to the side wall of the cylindrical member 14, and after adjusting the gap, the strap 16 is pulled laterally to open the gap adjusting gauge 1 from the opening 15 of the side wall.
3 has a structure that can be removed.
【００２６】ギャップ調整ゲージ１３の基端部を避雷装
置４の素子側電極８に装着した状態において、その素子
側電極８の先端部と、絶縁カバー１０の絶縁部材２０の
下端部に当接する円筒状部材１４の先端部との離隔距離
が気中間隙の長さｇとなるように前記円筒状部材１４の
長さ寸法が規定されている。この円筒状部材１４の長さ
寸法を気中間隙の長さｇから所定値に規定しておけば、
絶縁部材２０の下端部と電線側電極１９の下端部との間
で放電孔２１の長さｇ’が予め規定されているため、気
中間隙の長さｇに放電孔２１の長さｇ’を加えた所定の
ギャップ長Ｇが規定されることになる。A cylinder that abuts the tip of the element-side electrode 8 and the lower end of the insulating member 20 of the insulating cover 10 when the base end of the gap adjusting gauge 13 is attached to the element-side electrode 8 of the lightning arrester 4. The length dimension of the cylindrical member 14 is defined so that the distance from the tip of the cylindrical member 14 becomes the length g of the air gap. If the length dimension of the cylindrical member 14 is regulated to a predetermined value from the length g of the air gap,
Since the length g'of the discharge hole 21 is defined in advance between the lower end of the insulating member 20 and the lower end of the wire-side electrode 19, the length g'of the discharge hole 21 is added to the length g of the air gap. A predetermined gap length G is added.
【００２７】このギャップ調整ゲージ１３を使用して避
雷装置４を碍子２に付設する取り付け要領は以下のとお
りである。まず、避雷装置４の素子側電極８にギャップ
調整ゲージ１３の基端部を予め装着する。このギャップ
調整ゲージ１３は、図６に示すように避雷装置４の素子
側電極８を抱持するように嵌め込まれ、その素子側電極
８上に載置した状態でセッティングされる。このギャッ
プ調整ゲージ１３のセッティング後、取り付け金具１２
をスライドさせて避雷装置４を位置調整する。前記取り
付け金具１２は上下方向（図１の矢印ｓ方向）にスライ
ド可能な構造を有し、取り付け金具１２の一部に上下方
向に沿って形成された長穴を利用することにより、避雷
装置４を上下方向に位置調整する。この位置調整により
避雷装置４の素子側電極８に装着されたギャップ調整ゲ
ージ１３の先端部を送配電線１の絶縁カバー１０の下部
に設けられた絶縁部材２０の下端部に当接させる。The procedure for attaching the lightning arrester 4 to the insulator 2 using the gap adjusting gauge 13 is as follows. First, the base end of the gap adjusting gauge 13 is attached to the element side electrode 8 of the lightning arrester 4 in advance. As shown in FIG. 6, the gap adjusting gauge 13 is fitted so as to hold the element side electrode 8 of the lightning arrester 4, and is set in a state of being placed on the element side electrode 8. After setting the gap adjustment gauge 13, the mounting bracket 12
Slide to adjust the position of the lightning arrester 4. The mounting bracket 12 has a structure that is slidable in the vertical direction (the direction of arrow s in FIG. 1), and by using a long hole formed in a part of the mounting bracket 12 along the vertical direction, the lightning arrester 4 Adjust the vertical position. By this position adjustment, the tip of the gap adjusting gauge 13 attached to the element-side electrode 8 of the lightning arrester 4 is brought into contact with the lower end of the insulating member 20 provided below the insulating cover 10 of the power transmission and distribution line 1.
【００２８】このようにギャップ調整ゲージ１３の先端
部を絶縁部材２０の下端部に当接させるだけで、避雷装
置４の素子側電極８と絶縁部材２０の下端部との間の気
中間隙の長さｇが所定値に規定される。この気中間隙の
長さｇが所定値に規定されれば、絶縁部材２０の下端部
と電線側電極１９との間で放電孔２１の長さｇ’が予め
規定されていることから、前記避雷装置４の素子側電極
８と送配電線１の電線側電極１９との間を、気中間隙の
長さｇと放電孔２１の長さｇ’とを合計した所定のギャ
ップ長Ｇの規定値に設定することができる。As described above, by merely bringing the tip end portion of the gap adjusting gauge 13 into contact with the lower end portion of the insulating member 20, the air gap between the element side electrode 8 of the lightning arrester 4 and the lower end portion of the insulating member 20 is reduced. The length g is defined as a predetermined value. If the length g of the air gap is set to a predetermined value, the length g ′ of the discharge hole 21 between the lower end of the insulating member 20 and the wire-side electrode 19 is set in advance. A predetermined gap length G between the element-side electrode 8 of the lightning arrester 4 and the wire-side electrode 19 of the power transmission / distribution line 1 is defined as the sum of the air gap length g and the discharge hole 21 length g ′. Can be set to a value.
【００２９】その後、図７に示すようにギャップ調整ゲ
ージ１３のストラップ１６を側方へ引っ張ることにより
ギャップ調整ゲージ１３を開口部１５を介して素子側電
極８から離脱させることができ、これにより、ギャップ
調整ゲージ１３によりギャップ長Ｇを所定の規定値に設
定した状態で避雷装置４の取り付けが完了する。Thereafter, as shown in FIG. 7, by pulling the strap 16 of the gap adjusting gauge 13 laterally, the gap adjusting gauge 13 can be detached from the element side electrode 8 through the opening portion 15. The installation of the lightning arrester 4 is completed with the gap adjusting gauge 13 setting the gap length G to a predetermined specified value.
【００３０】なお、前記碍子２への避雷装置４の取り付
け、取り付け金具１２による避雷装置４の位置調整、ギ
ャップ調整ゲージ１３の取り外しは間接活線工法により
行われる。この間接活線工法は、配電線高圧活線作業で
長尺な絶縁操作棒（間接活線工具）を用いることにより
作業員が活線に直接的に触れることなく、所定の作業を
実行することができる工法である。この間接活線工法を
用いることにより、充電部などへの防護が不要となるた
め、作業時間の短縮化が図れ、また、活線から離れて作
業ができるため、感電事故の発生がない安全な作業環境
を確保でき、さらに保護具や防具の不要により作業員の
疲労を軽減することができる。The lightning protection device 4 is attached to the insulator 2, the position of the lightning protection device 4 is adjusted by the fitting 12, and the gap adjusting gauge 13 is removed by the indirect live wire construction method. This indirect live-wire construction method uses a long insulated operating rod (indirect live-wire tool) for distribution line high-voltage live-line work so that workers can perform predetermined work without directly touching the live line. It is a construction method that can By using this indirect live wire construction method, it is not necessary to protect the live parts, etc., so the working time can be shortened, and since work can be done away from the live wire, there is no risk of electric shock. The working environment can be secured, and the fatigue of the worker can be reduced by eliminating the need for protective equipment and protective equipment.
【００３１】[0031]
【発明の効果】本発明によれば、避雷装置を、その素子
側電極を送配電線の電線側電極に放電ギャップを介して
対向させた状態で碍子に付設するに際して、前記避雷装
置の素子側電極に着脱自在に装着され、前記放電ギャッ
プのギャップ長を規制するギャップ調整ゲージを用いる
ことにより、放電ギャップにおけるギャップ長が小さい
場合でも簡単にそのギャップ長の調整作業を実行するこ
とができ、しかも、碍子などの寸法公差によるギャップ
長の調整作業が不要となり、取り付け現場などにおいて
も簡便な手段により所望の放電特性を有する避雷装置を
碍子に付設することができて作業性が大幅に向上する。According to the present invention, when a lightning arrester is attached to an insulator with its element-side electrode facing the wire-side electrode of the transmission and distribution line via a discharge gap, the element-side of the lightning arrester is provided. By using a gap adjusting gauge that is detachably attached to the electrode and regulates the gap length of the discharge gap, even if the gap length in the discharge gap is small, the adjustment work of the gap length can be easily performed, and Since the work of adjusting the gap length due to the dimensional tolerance of the insulator and the like becomes unnecessary, a lightning arrester having a desired discharge characteristic can be attached to the insulator by a simple means even at the installation site and the like, and workability is greatly improved.
【００３２】また、ギャップ長の調整が確実に行えるこ
とから、避雷装置の保護性能における信頼性も大幅に向
上し、その避雷装置により碍子を含む周辺設備を保護す
る性能面でも大幅な向上が図れ、接触などによる不測の
事故を未然に防止できて安全性の改善が図れる。Further, since the gap length can be adjusted with certainty, the reliability of the protection performance of the lightning protection device is greatly improved, and the performance of protecting the peripheral equipment including the insulator by the lightning protection device is also greatly improved. It is possible to prevent accidents due to contact, etc. and improve safety.
【図１】本発明の実施形態を説明するためのもので、碍
子に付設された避雷装置にギャップ調整ゲージを装着し
た状態を示す正面図である。FIG. 1 is a front view for explaining an embodiment of the present invention, showing a state in which a gap adjusting gauge is attached to a lightning arrester attached to an insulator.
【図２】本発明の実施形態において、送配電線の絶縁カ
バー内の電線側電極と避雷装置の素子側電極との位置関
係を説明するための一部断面部分を含む図１のＸ矢視図
である。FIG. 2 is a view taken in the direction of arrow X in FIG. 1 including a partial cross-sectional portion for explaining the positional relationship between the wire-side electrode in the insulating cover of the transmission and distribution wire and the element-side electrode of the lightning arrester in the embodiment of the invention It is a figure.
【図３】図２の電線側電極と絶縁部材を示す一部断面部
分を含む正面図である。FIG. 3 is a front view including a partial cross-sectional portion showing an electric wire side electrode and an insulating member of FIG.
【図４】本発明で使用するギャップ調整ゲージを示す斜
視図である。FIG. 4 is a perspective view showing a gap adjusting gauge used in the present invention.
【図５】（ａ）はギャップ調整ゲージを示す正面図、
（ｂ）は（ａ）のＡ−Ａ線に沿う断面図、（ｃ）は
（ａ）の背面図である。FIG. 5 (a) is a front view showing a gap adjusting gauge,
(B) is sectional drawing which follows the AA line of (a), (c) is a rear view of (a).
【図６】ギャップ調整ゲージを避雷装置の素子側電極に
装着した状態を示す要部拡大部分断面図である。FIG. 6 is an enlarged partial sectional view of an essential part showing a state in which a gap adjusting gauge is attached to an element side electrode of a lightning arrester.
【図７】ギャップ調整ゲージを避雷装置の素子側電極か
ら取り外した状態を示す要部拡大部分断面図である。FIG. 7 is an enlarged partial sectional view of an essential part showing a state in which the gap adjusting gauge is removed from the element side electrode of the lightning arrester.
【図８】従来例を説明するためのもので、碍子に避雷装
置を付設した状態を示す正面図である。FIG. 8 is a front view for explaining a conventional example, showing a state in which a lightning arrester is attached to an insulator.
１ 送配電線 ２ 碍子 ４ 避雷装置 ７ 接地側電極 ８ 素子側電極 １１ 放電ギャップ １２ 取り付け金具 １３ ギャップ調整ゲージ １４ 円筒状部材 １５ 開口部 １９ 電線側電極 Ｇ ギャップ長 1 transmission and distribution lines 2 insulator 4 Lightning arrester 7 Ground electrode 8 element side electrode 11 discharge gap 12 Mounting bracket 13 Gap adjustment gauge 14 Cylindrical member 15 openings 19 Wire side electrode G gap length
───────────────────────────────────────────────────── フロントページの続き (72)発明者 赤穂 智章 兵庫県尼崎市名神町３丁目７番18号 音羽 電機工業株式会社本社事業所内 Ｆターム(参考） 5G331 AA04 AA06 BB33 BC11 DA03 EA16 EB07 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Tomoaki Ako Otowa, 3-7-18 Meishin Town, Amagasaki City, Hyogo Prefecture Denki Kogyo Co., Ltd. Head Office F term (reference) 5G331 AA04 AA06 BB33 BC11 DA03 EA16 EB07
Claims (4)
付け金具を介して付設された避雷装置の素子側電極に着
脱自在に装着され、前記避雷装置の素子側電極と前記電
線に設けられた電線側電極との間に形成される放電ギャ
ップのギャップ長を規制することを特徴とするギャップ
調整ゲージ。1. An element-side electrode of a lightning arrester attached to a grounding side portion of an insulator supporting an electric wire via a mounting metal fitting, and detachably attached to the element-side electrode of the lightning arrester and the electric wire. A gap adjusting gauge which regulates a gap length of a discharge gap formed between the wire side electrode and the wire side electrode.
うにその素子側電極に着脱自在に嵌合され、前記ギャッ
プ長を規制する所定の長さを有する絶縁性の筒状部材か
らなり、その側壁部の一部に、前記素子側電極から離脱
させて側方への引き抜きを可能とする開口部を形成した
ことを特徴とする請求項１に記載のギャップ調整ゲー
ジ。2. An insulating cylindrical member that is detachably fitted to the element-side electrode of the lightning arrester so as to hold the element-side electrode and has a predetermined length that regulates the gap length. The gap adjusting gauge according to claim 1, wherein an opening is formed in a part of the side wall of the opening so that the opening can be separated from the element-side electrode and can be pulled out laterally.
に、その筒状部材を側方へ引き抜くためのストラップを
装着したことを特徴とする請求項２に記載のギャップ調
整ゲージ。3. The gap adjusting gauge according to claim 2, wherein a strap for pulling out the tubular member laterally is attached to a portion of the side wall portion of the tubular member opposite to the opening portion.
装置を取り付け金具を介して付設し、前記避雷装置の素
子側電極を、前記電線に設けられた電線側電極に放電ギ
ャップを介して対向配置するに際して、前記避雷装置の
素子側電極に着脱可能なギャップ調整ゲージの基端部を
装着し、そのギャップ調整ゲージの先端部を電線側電極
に対して位置合わせすることにより前記放電ギャップの
ギャップ長を規制した状態で避雷装置を位置決めし、そ
の後、前記ギャップ調整ゲージを引き抜き除去すること
を特徴とする避雷装置の取付方法。4. A lightning arrester is attached to a ground side portion of an insulator supporting an electric wire via a mounting metal fitting, and an element side electrode of the lightning arrester is connected to an electric wire side electrode provided on the electric wire via a discharge gap. When facing each other, the base end of the removable gap adjusting gauge is attached to the element side electrode of the lightning arrester, and the tip end of the gap adjusting gauge is aligned with the wire side electrode so that the discharge gap A method for mounting a lightning arrester, characterized in that the lightning arrester is positioned with the gap length being regulated, and then the gap adjusting gauge is pulled out and removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001285293A JP4657535B2 (en) | 2001-09-19 | 2001-09-19 | Gap adjustment gauge and lightning arrester mounting method using the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001285293A JP4657535B2 (en) | 2001-09-19 | 2001-09-19 | Gap adjustment gauge and lightning arrester mounting method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003100418A true JP2003100418A (en) | 2003-04-04 |
| JP4657535B2 JP4657535B2 (en) | 2011-03-23 |
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ID=19108461
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001285293A Expired - Lifetime JP4657535B2 (en) | 2001-09-19 | 2001-09-19 | Gap adjustment gauge and lightning arrester mounting method using the same |
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| JP (1) | JP4657535B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009054464A (en) * | 2007-08-28 | 2009-03-12 | Chubu Electric Power Co Inc | Attaching method of lightning arrester |
| CN103474183A (en) * | 2012-06-08 | 2013-12-25 | 王巨丰 | Voltage-sharing type lightning-protection clearance device capable of deeply restraining power frequency, follow current and electric arcs |
| CN104409969A (en) * | 2014-12-02 | 2015-03-11 | 国家电网公司 | Self-arc-quenching parallel gap device |
| CN107564631A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | It is a kind of to be automatically increased discharging gap so as to block the anti-thunder insulator of power frequency continued flow |
| CN107564629A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | A kind of lower electric discharge part for clearance lightning-proof |
| CN107564630A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | A kind of lightning protection pillar insulator that can block power frequency continued flow |
| CN112735712A (en) * | 2020-12-30 | 2021-04-30 | 浙江伏尔特电器有限公司 | Lightning protection device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135613U (en) * | 1988-03-09 | 1989-09-18 | ||
| JPH0734597U (en) * | 1993-11-30 | 1995-06-23 | 千代田器材株式会社 | S-shaped horn insulator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118820U (en) * | 1984-01-19 | 1985-08-10 | 日本碍子株式会社 | Lightning disconnection prevention device |
| JPH06215655A (en) * | 1993-01-13 | 1994-08-05 | Ngk Insulators Ltd | Gap adjustment in lightning arresting insulator device and gap gauge used in it |
| JPH11154582A (en) * | 1997-11-20 | 1999-06-08 | Ngk Spark Plug Co Ltd | Manufacture of spark plug |
-
2001
- 2001-09-19 JP JP2001285293A patent/JP4657535B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135613U (en) * | 1988-03-09 | 1989-09-18 | ||
| JPH0734597U (en) * | 1993-11-30 | 1995-06-23 | 千代田器材株式会社 | S-shaped horn insulator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009054464A (en) * | 2007-08-28 | 2009-03-12 | Chubu Electric Power Co Inc | Attaching method of lightning arrester |
| CN103474183A (en) * | 2012-06-08 | 2013-12-25 | 王巨丰 | Voltage-sharing type lightning-protection clearance device capable of deeply restraining power frequency, follow current and electric arcs |
| CN103474183B (en) * | 2012-06-08 | 2016-04-06 | 王巨丰 | The even pressure type degree of depth suppresses power frequency continued flow electric arc lightning protection inter space device |
| CN104409969A (en) * | 2014-12-02 | 2015-03-11 | 国家电网公司 | Self-arc-quenching parallel gap device |
| CN107564631A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | It is a kind of to be automatically increased discharging gap so as to block the anti-thunder insulator of power frequency continued flow |
| CN107564629A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | A kind of lower electric discharge part for clearance lightning-proof |
| CN107564630A (en) * | 2017-08-26 | 2018-01-09 | 卢永星 | A kind of lightning protection pillar insulator that can block power frequency continued flow |
| CN112735712A (en) * | 2020-12-30 | 2021-04-30 | 浙江伏尔特电器有限公司 | Lightning protection device |
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| Publication number | Publication date |
|---|---|
| JP4657535B2 (en) | 2011-03-23 |
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