JPH0251230B2 - - Google Patents
Info
- Publication number
- JPH0251230B2 JPH0251230B2 JP57073600A JP7360082A JPH0251230B2 JP H0251230 B2 JPH0251230 B2 JP H0251230B2 JP 57073600 A JP57073600 A JP 57073600A JP 7360082 A JP7360082 A JP 7360082A JP H0251230 B2 JPH0251230 B2 JP H0251230B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- display
- electrodes
- insulating
- gas pressure
- 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
Links
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000003566 sealing material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000004040 coloring Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 32
- 238000009413 insulation Methods 0.000 description 9
- 239000012212 insulator Substances 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Insulators (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は配電用機器に備えられた耐雷ホー
ン、アレスタ等の素子等が動作したかどうかを確
認することができる表示装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a display device that can confirm whether or not elements such as lightning horns and arresters provided in power distribution equipment have operated.
この種の表示装置は耐雷装置例えば耐雷ホーン
と電気的に直列に接続して同ホーンの動作を表示
する場合、耐雷ホーン自体のせん絡特性に支障が
ない程度に大地に対して電気的に絶縁する必要が
あり、かつ表示装置の抵抗体の火花放電は耐雷ホ
ーンの絶縁支持部材の破壊より早く生ずる必要が
ある。
When this type of display device is electrically connected in series with a lightning protection device, such as a lightning horn, to display the operation of the horn, it is electrically insulated from the ground to the extent that it does not affect the flashover characteristics of the lightning protection horn itself. The spark discharge of the resistor of the display device must occur earlier than the breakdown of the insulating support member of the lightning protection horn.
又、表示装置は耐雷ホーンの絶縁支持部材の経
年的絶縁劣化、或いは外傷などの不慮の事故によ
る急激な絶縁性能の低下により、その絶縁破壊電
圧が同表示器の抵抗体の火花電圧程度まで低下
し、同絶縁支持部材と同抵抗体において同時放電
が生じた場合でも、その分担された放電電流のエ
ネルギーで十分表示動作する必要がある。 In addition, due to insulation deterioration of the lightning horn's insulating support member over time, or a sudden drop in insulation performance due to an unexpected accident such as trauma, the dielectric breakdown voltage of the display device may drop to the level of the spark voltage of the resistor of the display device. However, even if simultaneous discharge occurs in the same insulating support member and the same resistor, the energy of the shared discharge current must be sufficient for display operation.
さらに又、表示装置に侵入した電流が非常に大
きい場合には、そのガス圧により表示筒のみなら
ず該側の絶縁筒までもが破壊されて柱上から落下
し、これがため公衆災害を引起こすおそれがある
とともに、多重雷によるその後の雷サージの侵入
には対応することができないという問題があつ
た。 Furthermore, if the current that enters the display device is very large, the gas pressure will destroy not only the display tube but also the insulating tube on that side and cause it to fall from the top of the column, causing a public disaster. In addition to this, there was a problem in that it was not possible to deal with subsequent lightning surges caused by multiple lightning strikes.
この発明の目的は前記したように耐雷ホーン等
の絶縁支持部材の経年的絶縁劣化或いは外傷など
の不慮の事故による急激な絶縁性能の低下によ
り、その絶縁破壊電圧が表示装置の抵抗体の火花
電圧程度まで低下した場合でも、その分担された
放電電流のエネルギーで十分表示動作し、広い範
囲のせん絡電流を検出表示することができるとと
もに、表示装置に侵入した電流が非常に大きい場
合でも外側の絶縁筒が破壊されず公衆災害の発生
を未然に防止することができ、かつ多重雷による
その後の雷サージの侵入にも対応することができ
る表示装置を提供するにある。
The purpose of the present invention is, as mentioned above, to reduce the dielectric breakdown voltage to the spark voltage of the resistor of the display device due to insulation deterioration over time of insulation support members such as lightning horns or sudden decline in insulation performance due to unexpected accidents such as external injuries. Even if the current that has entered the display device is very large, the display will operate sufficiently with the energy of the shared discharge current, and it will be possible to detect and display a wide range of flashover current. To provide a display device which can prevent the occurrence of a public disaster without destroying an insulating tube, and can also cope with the subsequent invasion of lightning surge caused by multiple lightning.
この発明は前記目的を達成するために、透明な
絶縁筒の両端内周にその内周面に逃げ溝が形成さ
れた絶縁筒を嵌合し、同支持筒を介して絶縁筒内
に一対の電極を互いに所定の間隔を形成するよう
に挿入固定し、前記絶縁筒の両端部外周及び各電
極外周の一部に対し前記電極と嵌合する内周面に
逃げ溝が形成された保護カバーを嵌着し、同保護
カバーと支持筒の間及び前記両逃げ溝内にはシー
ル材を充填し、さらに、前記両電極間には発火時
に着色性を発揮する発火剤を付着した抵抗体を接
続して発火部を形成するとともにその発火部を表
示筒内に収容し、同表示筒の両端を弾性を有する
支持部材により密封し、前記発火剤が小電流に起
因して両電極間に発生する火花、フラツシユオー
バーにより発火し表示筒内にガス圧を生じたとき
には、同ガス圧により前記支持部材を拡開し、同
ガスにより絶縁筒内面を着色するとともに、前記
発火剤が大電流に起因して両電極間に発生する火
花により発火し表示筒内に生じたガス圧が表示筒
のみならず前記絶縁筒をも破壊するほど大きくな
つたときには、同ガス圧により前記シール材を破
り、同ガスを逃げ溝から外部へ放圧するようにし
たことを要旨としている。
In order to achieve the above-mentioned object, the present invention includes an insulating tube having relief grooves formed on the inner circumferential surface of the transparent insulating tube, and a pair of insulating tubes inserted into the insulating tube through the support tube. The electrodes are inserted and fixed so as to form a predetermined spacing from each other, and a protective cover is provided on the outer periphery of both ends of the insulating tube and a part of the outer periphery of each electrode, the inner periphery of which is fitted with the electrodes is provided with a relief groove. A sealing material is filled between the protective cover and the support tube and in both relief grooves, and a resistor coated with an ignition agent that exhibits coloration when ignited is connected between the two electrodes. to form an ignition part, the ignition part is housed in a display tube, both ends of the display tube are sealed with elastic support members, and the ignition agent is generated between the two electrodes due to a small current. When a spark or flashover ignites and generates gas pressure inside the display cylinder, the gas pressure expands the support member, the gas colors the inner surface of the insulating cylinder, and the ignition agent is caused by a large current. When the spark generated between the two electrodes ignites and the gas pressure generated inside the display cylinder becomes large enough to destroy not only the display cylinder but also the insulating cylinder, the gas pressure breaks the sealing material and the same The gist is that the pressure of the gas is released to the outside through the escape groove.
発火剤が小電流に反応して発火し表示筒内にガ
ス圧が生じると、同ガス圧は表示筒両端の支持部
材を拡開し、色のついたガスが絶縁筒内面に付着
する。
When the ignition agent ignites in response to a small electric current and gas pressure is generated within the display tube, the gas pressure spreads the support members at both ends of the display tube, and colored gas adheres to the inner surface of the insulating tube.
一方、発火剤が雷サージに反応して発火し急激
にガスを発生させると、そのガス圧により表示筒
が破壊され、その状態は透明な絶縁筒を介して視
認される。 On the other hand, when the ignition agent ignites in response to a lightning surge and rapidly generates gas, the display tube is destroyed by the gas pressure, and this state is visible through the transparent insulating tube.
そして、発火剤が大電流に反応して発火し発生
したガス圧が表示筒のみならず絶縁筒をも破壊す
るほど大きくなると、同ガス圧により逃げ溝等に
充填されたシール材が破られ絶縁筒を破壊するこ
となくガスは外部に抜け出る。 When the ignition agent ignites in response to a large current and the gas pressure generated becomes large enough to destroy not only the display tube but also the insulating tube, the gas pressure breaks the sealing material filled in the escape groove etc. and insulates it. Gas escapes to the outside without destroying the tube.
以下、この発明を具体化した一実施例を図面に
従つて説明する。
An embodiment embodying the present invention will be described below with reference to the drawings.
図中１において、１は図示しない電柱に設けら
れた腕金、２は腕金１に固定された電線３の支持
用のピン碍子であつて、その下部に支持ボルト４
が腕金１に挿通されナツト５により締付されてい
る。 1 in the figure, 1 is an arm mounted on a utility pole (not shown), 2 is a pin insulator for supporting the electric wire 3 fixed to the arm 1, and a support bolt 4 is attached to the lower part of the insulator.
is inserted into the cross arm 1 and tightened with a nut 5.
６はピン碍子２の下部外周に取着された支持金
具７に対しその下部電極が取付固定されたアレス
タ等の素子（以下、素子と省略する）であつて、
その上部電極にはピン碍子２の外周を囲むととも
に電線３にギヤツプＧを介して対応するホーン８
が接続固定されている。なお、支持金図７のピン
碍子取着部７ａには絶縁モールドが施されてい
る。 Reference numeral 6 denotes an element (hereinafter abbreviated as element) such as an arrester whose lower electrode is attached and fixed to a support fitting 7 attached to the lower outer periphery of the pin insulator 2,
A horn 8 surrounding the outer periphery of the pin insulator 2 and corresponding to the electric wire 3 via a gap G is attached to the upper electrode.
The connection has been fixed. Note that an insulating mold is applied to the pin insulator attaching portion 7a of the support plate shown in FIG.
そして、前記素子６の下部電極はリード線９、
表示装置Ｉ及びブラケツト１０を介して接地され
ている。同ブラケツト１０はその基端が前記支持
ボルト４の下端部に通電されナツト１１により締
付固定されるとともに、表示装置Ｉを取付ける先
端部は同表示装置Ｉの表示状態が下方から確認し
やすくするため大地に対して適切な角度を有する
ように曲げられている。 The lower electrode of the element 6 is connected to a lead wire 9,
It is grounded via the display device I and the bracket 10. The base end of the bracket 10 is energized to the lower end of the support bolt 4 and is tightened and fixed by a nut 11, and the tip end to which the display device I is attached makes it easy to check the display status of the display device I from below. Therefore, it is bent at an appropriate angle to the ground.
次にこの表示装置Ｉを第２図〜第５図に従つて
説明する。 Next, this display device I will be explained with reference to FIGS. 2 to 5.
第２図は表示装置Ｉの全体を示し、１２はポリ
カーボネート等の耐熱性を有する透明な合成樹脂
からなる絶縁筒であつて、その両端部内周には第
３図に示すようにそれぞれ合成樹脂製の支持筒１
３が嵌合接着されている。同支持筒１３の外周面
には中心軸と直交して貫設されたピン孔１３ａが
設けられているとともに、内周面１３ｂには第４
図に示すように２つの逃げ溝１３ｃが相対向する
位置に形成されている。１４，１５は前記支持筒
１３に挿入されたリード線接続の電極であつて、
同電極１４，１５に形成されたピン孔１４ａ，１
５ａに前記支持筒１３に形成したピン孔１３ａか
ら挿入されたピン１６により、同支持筒１３に対
して固定されている。１７は前記一方のリード線
接続の電極１４の端部外周面に形成したねじ部で
あつて、前記ブラケツト１０先端部に挿入され、
ナツト１８にて固定されるようになつている。１
９は前記他方のリード線接続用の電極１５の端面
に形成した接続孔であつて、前記リード線９を挿
入し圧着するようになつている。 FIG. 2 shows the entire display device I, and numeral 12 is an insulating cylinder made of heat-resistant transparent synthetic resin such as polycarbonate, and the inner periphery of each end is made of synthetic resin, as shown in FIG. support tube 1
3 are fitted and bonded. The outer peripheral surface of the support tube 13 is provided with a pin hole 13a extending perpendicularly to the central axis, and the inner peripheral surface 13b is provided with a fourth pin hole 13a.
As shown in the figure, two escape grooves 13c are formed at opposing positions. 14 and 15 are electrodes connected to lead wires inserted into the support tube 13,
Pin holes 14a and 1 formed in the same electrodes 14 and 15
It is fixed to the support tube 13 by a pin 16 inserted through a pin hole 13a formed in the support tube 13 at 5a. 17 is a threaded portion formed on the outer peripheral surface of the end of the electrode 14 connected to the one lead wire, and is inserted into the tip of the bracket 10;
It is designed to be fixed with a nut 18. 1
Reference numeral 9 denotes a connection hole formed in the end face of the electrode 15 for connecting the other lead wire, into which the lead wire 9 is inserted and crimped.
２０は前記絶縁筒１２の両端外周及び前記各電
極１４，１５外周の一部に対してそれぞれ嵌合接
着された一対の保護カバーであつて、その電極１
４，１５と嵌合する内周面２０ａには第５図に示
すように３つの逃げ溝２０ｂが等間隔に形成され
ている。そして、同逃げ溝２０ｂと各電極１４，
１５との間に形成される間隙、前記支持筒１３の
逃げ溝１３ｃと同電極１４，１５との間に形成さ
れる間隙及び支持筒１３の外端面と保護カバー２
０の内側面との間に形成される間隙にはシール材
２１が充填されていて、前記絶縁筒を密封すると
ともに、同絶縁筒１２内の圧力が非常に大きくな
つたとき、この充填したシール材２１が破られこ
の間隙から同筒１２内のガスが抜けるようになつ
ている。 Reference numeral 20 denotes a pair of protective covers that are fitted and adhered to the outer periphery of both ends of the insulating tube 12 and a part of the outer periphery of each of the electrodes 14 and 15, respectively.
As shown in FIG. 5, three escape grooves 20b are formed at equal intervals on the inner circumferential surface 20a that fits into the grooves 4 and 15. Then, the relief groove 20b and each electrode 14,
15, a gap formed between the relief groove 13c of the support tube 13 and the electrodes 14, 15, and a gap formed between the outer end surface of the support tube 13 and the protective cover 2.
A sealing material 21 is filled in the gap formed between the inner surface of the insulating tube 12 and the inner surface of the insulating tube 12 to seal the insulating tube 12. The material 21 is torn so that the gas inside the cylinder 12 can escape through this gap.
２２はその両端に前記リード線接続用の電極１
４，１５の両内方突出部が若干間隙を有して挿入
された表示筒であつて、気密性がよく、しかも耐
強度性が小さい無機質材等により形成されている
とともに外周を視認効果の大きい色で着色し、前
記絶縁筒１２を介して外部からよく見ることがで
きるようになつている。２３は前記各リード線接
続用の電極１４，１５の内方突出部に嵌着された
ゴム製若しくは樹脂製の弾性のある支持部材であ
つて、それぞれ内端内周面が前記表示筒２２の両
端外周面に圧着されていて、同表示筒２２を密封
するとともに同表示筒２２内の圧力が大きくなつ
たときこの支持部材２３を拡開しその圧着面を通
つて同表示筒２２内のガスが抜けるようになつて
いる。 22 has electrodes 1 for connecting the lead wires on both ends thereof.
The display tube has both inward protrusions 4 and 15 inserted with a slight gap, and is made of an inorganic material with good airtightness and low strength resistance, and the outer periphery has a visual effect. It is colored in a large color so that it can be clearly seen from the outside through the insulating cylinder 12. Reference numeral 23 denotes an elastic supporting member made of rubber or resin that is fitted into the inward protrusion of the electrodes 14 and 15 for connecting the lead wires, and the inner circumferential surface of each inner end thereof is connected to the display cylinder 22. The supporting member 23 is crimped to the outer circumferential surface of both ends to seal the display tube 22, and when the pressure inside the display tube 22 becomes large, the supporting member 23 is expanded and the gas inside the display tube 22 is released through the crimped surfaces. is starting to come off.
２４は両電極１４，１５間に接続された抵抗体
であつて、その抵抗体２４の大きさはこの表示装
置Ｉに接続された素子６に異常電圧による電流が
流れた時に抵抗体２４間にて火花放電するように
両電極１４，１５間に発生する電圧をその破壊エ
ネルギーから設定されている。２５は前記抵抗体
２４の外周に付着した着色剤を混入した発火剤
（例えば火薬類）等の発火剤であつて、ペースト
状のものを抵抗体２４に塗布して乾燥させたもの
である。そして、前記両電極１４，１５の内端部
及びこの両電極１４，１５間に接続され外周に発
火剤２５を塗布された抵抗体２４によつて発火部
が形成されている。 24 is a resistor connected between both electrodes 14 and 15, and the size of the resistor 24 is such that when a current due to an abnormal voltage flows through the element 6 connected to this display device I, the resistance between the resistors 24 and 24 is determined. The voltage generated between the electrodes 14 and 15 is set based on the destructive energy so as to cause a spark discharge. Reference numeral 25 is an ignition agent such as an ignition agent (for example, explosives) mixed with a coloring agent attached to the outer periphery of the resistor 24, which is applied in paste form to the resistor 24 and dried. An ignition section is formed by a resistor 24 connected to the inner ends of the electrodes 14 and 15 and between the electrodes 14 and 15 and coated with an ignition agent 25 on its outer periphery.
次に上記のように構成した表示装置Ｉの作用に
ついて説明する。 Next, the operation of the display device I configured as described above will be explained.
今、襲雷などにより電線３にギヤツプＧのせん
絡電圧以上のサージの侵入があると、電線３→ホ
ーン８→素子６にサージ電流が流れ同素子６から
大地に放電される。この時、表示装置Ｉに侵入し
た電流は両電極１５，１４間に抵抗体２４が接続
されているため抵抗体２４の両端子間を火花放電
して腕金１を介して大地へ流れる。 Now, when a surge higher than the flashover voltage of the gap G enters the wire 3 due to a lightning strike, etc., a surge current flows from the wire 3 to the horn 8 to the element 6 and is discharged from the element 6 to the ground. At this time, since the resistor 24 is connected between the electrodes 15 and 14, the current that has entered the display device I causes a spark discharge between both terminals of the resistor 24 and flows to the ground via the arm arm 1.
そして、抵抗体２４の両端子間に火花が発生す
るとその火花により発火剤２５が反応（発火）
し、急激にして発生するガスはその圧力により表
示筒２２が破壊される。従つて、表示筒２２の破
壊された状態を絶縁筒１２を介して視認すること
により、素子６が働いたことを確認することがで
きる。この場合、燃焼ガスは絶縁筒１２に付着し
黒く着色される。 When a spark is generated between both terminals of the resistor 24, the spark causes the ignition agent 25 to react (ignite).
However, the pressure of the rapidly generated gas destroys the display cylinder 22. Therefore, by visually confirming the broken state of the display tube 22 through the insulating tube 12, it is possible to confirm that the element 6 has worked. In this case, the combustion gas adheres to the insulating cylinder 12 and is colored black.
又、表示装置Ｉに侵入した電流が非常に大きく
て、その大電流に基づく熱エネルギーの発生によ
り発火剤２５が発火して発生するガス圧が表示筒
２２のみならず絶縁筒１２を破壊するほどの大き
なものとなつた時には、そのガス圧により、前記
間隙に充填したシール材２１が破られ、その破ら
れた個所からガスが抜け出るようになつている。
従つて、絶縁筒１２が破壊されることによる公衆
災害は未然に防止することができるとともに、多
重雷による雷サージが侵入した場合において、最
初の雷サージにより表示筒２２のみが破壊される
だけなので、その後の雷サージの侵入にも抵抗体
２４の端子間に火花が発生して腕金１を介してア
ースさせることができる。 In addition, the current that has entered the display device I is so large that the ignition agent 25 is ignited due to the generation of thermal energy due to the large current, and the gas pressure generated is such that it destroys not only the display tube 22 but also the insulating tube 12. When the gap becomes large, the sealing material 21 filled in the gap is broken by the gas pressure, and the gas escapes from the broken part.
Therefore, public disasters caused by the destruction of the insulating tube 12 can be prevented, and in the event that multiple lightning surges occur, only the display tube 22 will be destroyed by the first lightning surge. Even when a subsequent lightning surge occurs, sparks are generated between the terminals of the resistor 24 and can be grounded via the armrest 1.
さらに、例えば素子６を支持する支持金具７の
ピン碍子取着部７ａに施された絶縁モールドが経
年絶縁劣化或いは外傷など不慮の事故による急激
な絶縁性能の低下を起し、その絶縁破壊電圧が表
示装置Ｉの抵抗体２４の放電電圧程度まで下が
り、同絶縁モールドと抵抗体２４の同時放電を生
じ同装置Ｉに侵入する電流が微少となつた場合に
も、フラツシユオーバーが起れば発火材２５は反
応を起す。そしてこの時、この反応によつて発生
する表示筒２２内のガス圧は同表示筒２２を破壊
するほどの急峻かつ強力なものではないが、同表
示筒２２はゴム製若しくは樹脂製の弾性を有する
支持部材２３により両電極１４，１５に対してそ
の両端が支持固定されているだけなので、その表
示筒２２内のガスは支持部材２３を拡開させて前
記絶縁筒１２を抜けるようになつている。 Furthermore, for example, the insulation mold applied to the pin insulator attaching part 7a of the support metal fitting 7 that supports the element 6 suddenly deteriorates insulating performance due to insulation deterioration over time or an unexpected accident such as external injury, and the dielectric breakdown voltage decreases. Even if the voltage drops to the level of the discharge voltage of the resistor 24 of the display device I, causing simultaneous discharge of the insulating mold and the resistor 24, and the current entering the device I becomes minute, if a flashover occurs, an ignition will occur. The material 25 causes a reaction. At this time, the gas pressure inside the display tube 22 generated by this reaction is not so steep and strong as to destroy the display tube 22, but the display tube 22 is made of elastic material made of rubber or resin. Since both ends of the electrodes 14 and 15 are supported and fixed by the supporting member 23, the gas in the display cylinder 22 expands the supporting member 23 and passes through the insulating cylinder 12. There is.
従つて、微少電流に基づく表示筒２２が破壊さ
れない程度の発火剤２５の反応であつも、着色剤
により色のついたガスは絶縁筒１２内面に付着す
ることになり、その色を絶縁筒１２を介して視認
することにより素子６が働いたことを破認するこ
とができる。 Therefore, even if the reaction of the pyrotechnic agent 25 is such that the display tube 22 is not destroyed due to the minute current, the gas colored by the coloring agent will adhere to the inner surface of the insulating tube 12, and the color will be transferred to the insulating tube 12. It is possible to confirm that the element 6 has worked by visually confirming it through the .
なお、この発明は前記実施例に限定されるもの
ではなく、例えば抵抗体２４に塗布する発火剤２
５をその燃焼ガスが絶縁筒１２の内面に付着し
種々の色に着色される性質のものとすること等、
この発明の趣旨を逸脱しない範囲内で任意に偏向
することも可能である。 Note that the present invention is not limited to the above-mentioned embodiments, and for example, the pyrotechnic agent 2 applied to the resistor 24
5 is of such a nature that its combustion gas adheres to the inner surface of the insulating cylinder 12 and is colored in various colors, etc.
It is also possible to arbitrarily deflect without departing from the spirit of the invention.
以上詳述したように、この発明は透明な絶縁筒
の両端内周にその内周面に逃げ溝が形成された支
持筒を嵌合し、同支持筒を介して絶縁筒内に一対
の電極を互いに所定の間隔を形成するように挿入
固定し、前記絶縁筒の両端部外周及び各電極外周
の一部に対し前記電極と嵌合する内周面に逃げ溝
が形成された保護カバーを嵌着し、同保護カバー
と支持筒の間及び前記両逃げ溝内にはシール材を
充填し、さらに、前記両電極間には発火時に着色
性を発揮する発火剤を付着した抵抗体を接続して
発火部を形成するとともにその発火部を表示筒内
に収容し、同表示筒の両端を弾性を有する支持部
材により密封し、前記発火剤が小電流に起因して
両電極間に発生する火花、フラツシユオーバーに
より発火し表示筒内にガス圧を生じたときには、
同ガス圧により前記支持部材を拡開し、同ガスに
より絶縁筒内面を着色するとともに、前記発火剤
が大電流に起因して両電極間に発生する火花によ
り発火し表示筒内に生じたガス圧が表示筒のみな
らず前記絶縁筒をも破壊するほど大きくなつたと
きには、同ガス圧により前記シール材を破り、同
ガスを逃げ溝から外部へ放圧するようにしたこと
により、配電線路に配設される耐雷ホーン、素子
等が有効に動作したかどうかを知ることができる
とともに放電個所を確認することができ、しかも
耐雷ホーン等の絶縁支持部材の経年的絶縁劣化或
いは外傷などの不慮の事故による急激な絶縁性能
の低下により、その絶縁破壊電圧が表示装置の抵
抗体の火花電圧程度まで低下した場合でも、その
分担された放電電流のエネルギーで十分表示動作
し、広い範囲に亘つてせん絡電流の検出表示を行
うことができ、さらに表示装置に侵入した電流が
非常に大きい場合でも発生したガス圧はシール材
を破つて逃げ溝から抜け出るようになつているた
め外側の絶縁筒は破壊されず、破片が柱上から落
下することはないので公衆災害の発生を未然に防
止することができ、かつ多重雷によるその後の雷
サージの侵入にも対応してアースさせることがで
きるという優れた効果を発揮し、表示装置として
実用上優れたものである。
As described in detail above, the present invention involves fitting a support tube having relief grooves on the inner circumferential surface of the transparent insulating tube to the inner periphery of both ends of the transparent insulating tube, and inserting a pair of electrodes into the insulating tube through the support tube. are inserted and fixed so as to form a predetermined distance from each other, and a protective cover having a relief groove formed on the inner peripheral surface that fits with the electrode is fitted to the outer periphery of both ends of the insulating cylinder and a part of the outer periphery of each electrode. A sealing material is filled between the protective cover and the support tube and in both of the escape grooves, and a resistor coated with an ignition agent that exhibits coloring properties when ignited is connected between the two electrodes. to form an ignition part, the ignition part is housed in a display tube, both ends of the display tube are sealed with elastic support members, and the ignition agent is used to prevent sparks generated between the two electrodes due to a small current. , when ignition occurs due to flashover and gas pressure is generated in the display cylinder,
The support member is expanded by the same gas pressure, and the inner surface of the insulating cylinder is colored by the same gas, and the ignition agent is ignited by the sparks generated between the two electrodes due to the large current, and gas is generated inside the display cylinder. When the pressure becomes large enough to destroy not only the display tube but also the insulating tube, the gas pressure breaks the sealing material and the gas is released from the escape groove to the outside, thereby preventing the gas from being distributed to the distribution line. It is possible to know whether the installed lightning horn, elements, etc. are operating effectively, and also to confirm the location of discharge, and also to prevent unexpected accidents such as insulation deterioration over time or external damage to the insulating support members of the lightning horn, etc. Even if the dielectric breakdown voltage drops to the level of the spark voltage of the display device's resistor due to a sudden drop in insulation performance, the energy of the shared discharge current is enough to operate the display and prevent flashover over a wide range. Current can be detected and displayed, and even if the current that enters the display device is extremely large, the gas pressure generated will break the sealing material and escape through the escape groove, so the outer insulating cylinder will not be destroyed. First, debris does not fall from the top of the pillar, which prevents public disasters from occurring, and has the excellent effect of being able to ground against subsequent lightning surges due to multiple lightning strikes. This makes it excellent in practical use as a display device.
第１図は表示装置を配電線路に取着した全体
図、第２図は表示装置の正面図、第３図は表示装
置の断面図、第４図は支持筒の正面図、第５図は
保護カバーの正面図である。
絶縁筒……１２、支持筒……１３、内周面……
１３ｂ、逃げ溝……１３ｃ、リード線接続電極…
…１４，１５、保護カバー……２０、内周面……
２０ａ、逃げ溝……２０ｂ、シール材……２１、
表示筒……２２、支持部材……２３、抵抗体……
２４、発火剤……２５、表示装置……Ｉ。
Fig. 1 is an overall view of the display device attached to the distribution line, Fig. 2 is a front view of the display device, Fig. 3 is a sectional view of the display device, Fig. 4 is a front view of the support tube, and Fig. 5 is a front view of the display device. FIG. 3 is a front view of the protective cover. Insulating tube...12, Support tube...13, Inner peripheral surface...
13b, relief groove...13c, lead wire connection electrode...
...14,15, Protective cover...20, Inner peripheral surface...
20a, escape groove...20b, sealing material...21,
Display tube...22, Support member...23, Resistor...
24. Ignition agent...25. Display device...I.
Claims (1)
３ｂに逃げ溝１３ｃが形成された支持筒１３を嵌
合し、 同支持筒１３を介して絶縁筒１２内に一対の電
極１４，１５を互いに所定の間隔を形成するよう
に挿入固定し、 前記絶縁筒１２の両端部外周及び各電極１４，
１５外周の一部に対し前記電極１４，１５と嵌合
する内周面２０ａに逃げ溝２０ｂが形成された保
護カバー２０を嵌着し、 同保護カバー２０と支持筒１３の間及び前記両
逃げ溝１３ｃ，２０ｂ内にはシール材２１を充填
し、 さらに、前記両電極１４，１５間には発火時に
着色性を発揮する発火剤２５を付着した抵抗体２
４を接続して発火部を形成するとともにその発火
部を表示筒２２内に収容し、 同表示筒２２の両端を弾性を有する支持部材２
３により密封し、 前記発火剤２５が小電流に起因して両電極１
４，１５間に発生する火花、フラツシユオーバー
により発火し表示筒２２内にガス圧を生じたとき
には、同ガス圧により前記支持部材２３を拡開
し、同ガスにより絶縁筒１２内面を着色するとと
もに、 前記発火剤２５が大電流に起因して両電極１
４，１５間に発生する火花により発火し表示筒２
２内に生じたガス圧が表示筒２２のみならず前記
絶縁筒１２をも破壊するほど大きくなつたときに
は、同ガス圧により前記シール材２１を破り、同
ガスを逃げ溝１３ｃ，２０ｂから外部へ放圧する
ようにしたことを特徴とする表示装置。[Claims] 1. An inner peripheral surface 1 on the inner periphery of both ends of the transparent insulating cylinder 12.
3b is fitted with a supporting tube 13 having an escape groove 13c formed therein, and a pair of electrodes 14 and 15 are inserted and fixed into the insulating tube 12 via the supporting tube 13 so as to form a predetermined distance from each other. The outer periphery of both ends of the insulating cylinder 12 and each electrode 14,
15, a protective cover 20 having a relief groove 20b formed on the inner circumferential surface 20a that fits with the electrodes 14 and 15 is fitted to a part of the outer circumference, and a protective cover 20 is provided between the protective cover 20 and the support tube 13 and both of the reliefs. A sealing material 21 is filled in the grooves 13c and 20b, and a resistor 2 is attached between the electrodes 14 and 15 with an ignition agent 25 that exhibits coloring properties when ignited.
4 are connected to form a firing part, and the firing part is accommodated in a display tube 22, and both ends of the display tube 22 are connected to an elastic supporting member 2.
3, and the pyrotechnic agent 25 is caused by a small current to reach both electrodes 1.
When sparks generated between 4 and 15 ignite due to flashover and gas pressure is generated within the display cylinder 22, the support member 23 is expanded by the gas pressure, and the inner surface of the insulating cylinder 12 is colored by the same gas. At the same time, the ignition agent 25 is caused by a large current to cause the ignition agent 25 to become
The spark generated between 4 and 15 ignites and the display tube 2
When the gas pressure generated in 2 becomes large enough to destroy not only the display cylinder 22 but also the insulating cylinder 12, the gas pressure breaks the sealing material 21 and the gas escapes to the outside through the escape grooves 13c and 20b. A display device characterized by being configured to release pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360082A JPS58192279A (en) | 1982-05-01 | 1982-05-01 | Indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360082A JPS58192279A (en) | 1982-05-01 | 1982-05-01 | Indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58192279A JPS58192279A (en) | 1983-11-09 |
| JPH0251230B2 true JPH0251230B2 (en) | 1990-11-06 |
Family
ID=13522971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7360082A Granted JPS58192279A (en) | 1982-05-01 | 1982-05-01 | Indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58192279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259U (en) * | 1993-06-02 | 1995-01-06 | 照行 向川 | Simple dust suction tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069388Y2 (en) * | 1986-03-27 | 1994-03-09 | 旭テック株式会社 | Bird damage prevention tool |
| JPH0312171Y2 (en) * | 1986-03-27 | 1991-03-22 | ||
| JPH0727793B2 (en) * | 1988-10-27 | 1995-03-29 | 日本碍子株式会社 | Operation display device of lightning protection insulator in lightning protection horn insulator device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50124142A (en) * | 1974-03-02 | 1975-09-30 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5840515Y2 (en) * | 1974-06-04 | 1983-09-12 | カブシキガイシヤ タカマツデンキセイサクシヨ | densenhuse |
-
1982
- 1982-05-01 JP JP7360082A patent/JPS58192279A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50124142A (en) * | 1974-03-02 | 1975-09-30 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259U (en) * | 1993-06-02 | 1995-01-06 | 照行 向川 | Simple dust suction tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58192279A (en) | 1983-11-09 |
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