JP5149772B2 - Lightning arrester mounting structure for insulator series - Google Patents

Lightning arrester mounting structure for insulator series Download PDF

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JP5149772B2
JP5149772B2 JP2008282900A JP2008282900A JP5149772B2 JP 5149772 B2 JP5149772 B2 JP 5149772B2 JP 2008282900 A JP2008282900 A JP 2008282900A JP 2008282900 A JP2008282900 A JP 2008282900A JP 5149772 B2 JP5149772 B2 JP 5149772B2
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yoke
lightning arrester
bracket
insulator
substrate
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JP2010113817A (en
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憲治 柘植
進 鈴木
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NGK Insulators Ltd
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NGK Insulators Ltd
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Priority to JP2008282900A priority Critical patent/JP5149772B2/en
Priority to MYPI20094306 priority patent/MY150265A/en
Priority to GB0918673A priority patent/GB2465058B/en
Priority to TW98136239A priority patent/TWI435338B/en
Priority to KR1020090106067A priority patent/KR101674206B1/en
Publication of JP2010113817A publication Critical patent/JP2010113817A/en
Priority to HK10105553.6A priority patent/HK1138944A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/14—Arcing horns

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
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  • Plasma & Fusion (AREA)

Description

本発明は、送電線を絶縁支持する碍子連に避雷器を取り付けるための避雷器取付構造に関するものであり、特に２連耐張がいし連への避雷器取付構造に関するものである。   The present invention relates to a lightning arrester attachment structure for attaching a lightning arrester to an insulator series that insulates and supports a power transmission line, and more particularly to a lightning arrester attachment structure to a two-strand tension insulator series.

送電線は、電圧階級に応じた長さのがいし連によって鉄塔アームに絶縁支持されているが、送電線に落雷した際にがいし連が破壊されると大規模な停電事故を招く可能性がある。そこでがいし連の課電側と接地側にそれぞれアークホーンを取付け、雷サージにより発生するアークをがいし連の外部に誘導してがいし連の破壊を防止することが古くから行われている。また近年においては、電圧-抵抗非直線特性を持つ酸化亜鉛素子を内蔵する避雷器をがいし連に取付け、落雷時には避雷器を通じて雷サージ電流を速やかに接地側に流すとともに続流を遮断し、がいし連や送電線を保護することが行われている。   The transmission line is insulated and supported by the tower arm by the insulator string with the length corresponding to the voltage class, but if the insulator string is destroyed when lightning strikes the transmission line, a large-scale power outage accident may be caused. . Therefore, it has been practiced for a long time to attach arc horns to the charging side and ground side of the insulator series and to guide the arc generated by lightning surge to the outside of the series to prevent destruction of the series. In recent years, a lightning arrester with a built-in zinc oxide element with voltage-resistance nonlinear characteristics is attached to the chain, and during a lightning strike, a lightning surge current is quickly passed to the ground side through the lightning arrester and the continuity is interrupted. Protecting transmission lines is being done.

がいし連には様々な種類があるが、耐張がいし連の多くは２連耐張がいし連である。これは並列２連のがいし連の両端をヨークと呼ばれる連結金具にそれぞれ接続し、接地側ヨークの中央を別の連結金具によって鉄塔アームに接続し、課電側ヨークの中央を送電線支持金具に接続した構造である。このような２連耐張がいし連に避雷器を取り付ける場合、装置の安定性を考え２連の中央位置に避雷器を取り付けている。   There are various types of insulators, but most of the tension insulators are double tension insulators. This is because two ends of the parallel insulators are connected to a connecting bracket called a yoke, the center of the grounding side yoke is connected to the tower arm by another connecting bracket, and the center of the charging side yoke is connected to the transmission line support bracket. It is a connected structure. When a lightning arrester is attached to such a two-strand tension insulator, the lightning arrester is attached to the center position of the two stations in consideration of the stability of the device.

このような避雷器は、がいし連からやや離して上方位置に固定する必要がある。そこで特許文献１の図３に示されるように、接地側のヨークの中央部分に避雷器取付用金具をボルトで固定し、この金具の上部に避雷器の基部を固定した避雷器取付構造が従来から採用されている。この構造では、ヨークに形成されたボルト挿通孔を利用したボルトによる固定が普通である。ところが電圧階級が高くなるとそれに伴って避雷器も大型かつ長尺となる。このため、特許文献１の図３に示されるように２本のボルトで避雷器取付用金具をヨークに固定しただけでは固定力が不足し、避雷器の先端に横方向の力が加えられると、ボルト挿通孔とボルト径との差の分だけずれが生じて避雷器の中心軸が２連のがいし連の中心から反れ、避雷器の先端の電極が正しい位置に保持されなくなるおそれがあった。また取付後に年数が経過するとボルトの締結力が低下し、がいし連に対する避雷器の設置方向が変化するとともに直列ギャップ長が変化し、所定の避雷機能を確保できなくなるおそれがあった。   Such a lightning arrester needs to be fixed at an upper position slightly away from the insulator string. Therefore, as shown in FIG. 3 of Patent Document 1, a lightning arrester mounting structure in which a lightning arrester mounting bracket is fixed to the center portion of the yoke on the ground side with a bolt and the base of the lightning arrester is fixed to the upper portion of the metal fitting has been conventionally employed. ing. In this structure, fixing by bolts using a bolt insertion hole formed in the yoke is common. However, when the voltage class becomes higher, the lightning arrester becomes larger and longer. For this reason, as shown in FIG. 3 of Patent Document 1, the fixing force is insufficient only by fixing the lightning arrester mounting bracket to the yoke with two bolts, and when a lateral force is applied to the tip of the lightning arrester, the bolt There is a possibility that the center axis of the lightning arrester is deviated from the center of the two series of insulators, and the electrode at the tip of the lightning arrester is not held in the correct position due to the difference between the insertion hole and the bolt diameter. In addition, when the number of years elapses after installation, the fastening force of the bolt decreases, the installation direction of the lightning arrester with respect to the insulator string changes, and the series gap length changes, which may prevent a predetermined lightning protection function from being secured.

なお、ヨークに避雷器取付用金具を締結するためのボルト本数を増加することによって固定力を高めることも考えられるが、ヨークのサイズや形状によっては強度上の問題から多数のボルト挿通孔を形成できないことがある。また既設の送電線路に避雷器を設置する場合には、鉄塔上でヨークに新たなボルト挿通孔を追加形成することは現実的には不可能である。
特開２００３−２１７７９０号公報 Although it is conceivable to increase the fixing force by increasing the number of bolts for fastening the lightning arrester mounting bracket to the yoke, depending on the size and shape of the yoke, a large number of bolt insertion holes cannot be formed due to strength problems. Sometimes. In addition, when installing a lightning arrester on an existing transmission line, it is practically impossible to additionally form a new bolt insertion hole in the yoke on the steel tower.
JP 2003-217790 A

本発明の目的は上記した従来の問題点を解決し、避雷器が大型化した場合にもがいし連に対してずれることなく強固な取付けが可能であり、既設の送電線路への取付けも可能ながいし連への避雷器取付構造を提供することである。   The object of the present invention is to solve the above-mentioned conventional problems, and even when the lightning arrester is enlarged, it can be firmly attached without shifting with respect to the string, and can be attached to an existing transmission line. It is to provide a lightning arrester mounting structure to the ream.

上記の課題を解決するためになされた本発明は、２連のがいし連の接地側端部を鉄塔アームに接続、または、課電側端部を電線に接続するヨークに、避雷器の基部を支持する金属製のブラケットを固定したがいし連への避雷器取付構造であって、ヨークの上面に密着されるブラケットの基板に、ヨークの端部から鉄塔アーム側に突出する左右一対の腕部を設け、またヨークの下面にはこれらの腕部への対向部位を備えた受板を配置し、ヨークを貫通する左右一対のボルトによって、ブラケットの基板と受板とを相互に締結するとともに、ヨークの外側を通る左右一対のボルトによって、ブラケットの基板の腕部と受板の対向部位とを相互に締結したことを特徴とするものである。   In order to solve the above problems, the present invention supports the base part of a lightning arrester on a yoke that connects the ground side end of two insulators to a tower arm or connects the end of a charging side to an electric wire. A lightning arrestor mounting structure to a series of anchors that fix a metal bracket, and a bracket substrate that is in close contact with the upper surface of the yoke, provided with a pair of left and right arms that project from the end of the yoke to the tower arm side, In addition, a receiving plate having a portion facing these arm portions is disposed on the lower surface of the yoke, and the bracket substrate and the receiving plate are fastened to each other by a pair of left and right bolts that penetrate the yoke, and the outer side of the yoke. The arm part of the board | substrate of a bracket and the opposing part of a receiving plate are mutually fastened by a pair of right and left volt | bolts which pass through.

なお請求項２のように、がいし連が２連耐張がいし連であることが好ましく、また請求項３のように、ブラケットが基板から斜め上方に立ち上がる避雷器支持部を備えたものであることが好ましい。さらに請求項４のように、受け板を２枚分割構造とすることもできる。   As in claim 2, it is preferable that the insulator string is a two-strand tension insulator string, and as in claim 3, the bracket is provided with a lightning arrester support that rises obliquely upward from the substrate. preferable. Further, as in claim 4, the receiving plate can be divided into two pieces.

本発明のがいし連への避雷器取付構造によれば、避雷器の基部を支持する金属製のブラケットの基板は、ヨークを貫通する左右一対のボルトと、ヨークの外側を通る左右一対のボルトとによって、ヨークに対して固定される。このように分散配置された少なくとも４本のボルトによってブラケットが固定されるため、強固な固定力を確保することができ、避雷器が大型で長尺である場合にも、避雷器の中心軸の方向がずれることがない。   According to the lightning arrester mounting structure to the insulator chain of the present invention, the metal bracket substrate that supports the base portion of the lightning arrester is composed of a pair of left and right bolts that penetrate the yoke and a pair of left and right bolts that pass outside the yoke. Fixed to the yoke. Since the bracket is fixed by at least four bolts distributed in this way, a strong fixing force can be secured, and even when the lightning arrester is large and long, the direction of the center axis of the lightning arrester is There is no deviation.

また本発明のがいし連への避雷器取付構造によれば、ヨークには２個のボルト挿通孔を形成するだけでよいので、ヨーク自体の強度を低下させるおそれがなく、またヨークが２個のボルト挿通孔を備えておれば更にボルト挿通孔を増加する必要はないため、既設の送電線路への適用範囲を拡大することができる。   Further, according to the lightning arrester mounting structure to the insulator series of the present invention, since it is only necessary to form two bolt insertion holes in the yoke, there is no risk of reducing the strength of the yoke itself, and the yoke has two bolts. If the insertion hole is provided, it is not necessary to further increase the bolt insertion hole, so that the range of application to the existing transmission line can be expanded.

さらに本発明のがいし連への避雷器取付構造によれば、２本のボルトはヨークの外側でブラケットの基板と受板とを相互に締結するので、ヨークの端部から鉄塔アーム側に突出した腕部がボルト締結力によりわずかに弾性変形する。このため取付後に年数が経過してボルトの締結力が低下したとしても、この弾性変形がボルトの締結力低下を補う。従って年数が経過しても、がいし連に対する避雷器の設置方向が変化することがない。   Furthermore, according to the lightning arrester mounting structure to the insulator series of the present invention, the two bolts fasten the bracket substrate and the receiving plate to each other outside the yoke, so that the arm protruding from the end of the yoke toward the tower arm side The part is slightly elastically deformed by the bolt fastening force. For this reason, even if the number of years has passed after the mounting and the fastening force of the bolt has decreased, this elastic deformation compensates for the reduction in the fastening force of the bolt. Therefore, even if years pass, the installation direction of the lightning arrester with respect to an insulator series does not change.

次に、本発明の好ましい実施形態を図面に基づいて詳細に説明する。
図１は本発明の実施形態である２連耐張がいし装置を示す全体図であり、１はがいし連、２は接地側（鉄塔側）のヨーク、３は課電側（送電線側）のヨーク、４はヨーク２上にブラケット５によって取り付けられた避雷器、６はヨーク３上に取り付けられた課電側電極である。 Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall view showing a two-strand tension insulator apparatus according to an embodiment of the present invention, where 1 is a steel chain, 2 is a ground-side (steel side) yoke, and 3 is a power-supplying side (transmission line side). A yoke 4 is a lightning arrester mounted on the yoke 2 with a bracket 5, and 6 is a power application side electrode mounted on the yoke 3.

周知のとおり、接地側のヨーク２は図示されていない別の金具を介して鉄塔アームに接続されており、課電側のヨーク３の先端には図示されていない別の金具を介して送電線が固定されている。がいし連１は送電電圧階級に応じた個数の懸垂がいしを直列に連結したものである。また避雷器４は、酸化亜鉛素子をひだ付きの樹脂製外皮により被覆し、その先端に放電用電極７を接続した周知の構造である。この放電用電極７と課電側電極６との間には所定の放電ギャップＧが形成されており、落雷時にはこの放電ギャップＧを介して雷サージ電流を避雷器４の酸化亜鉛素子に流す。酸化亜鉛素子は商用電圧に対しては絶縁体であるが、雷サージに伴う高電圧に対しては抵抗値を急減させて導体となる電圧-抵抗非直線特性を備えており、雷サージ電流を速やかに鉄塔側に流してがいし連１を保護するものである。   As is well known, the ground-side yoke 2 is connected to the tower arm via another metal fitting not shown, and the transmission line is connected to the tip of the power-applying yoke 3 via another metal fitting not shown. Is fixed. The insulator series 1 is formed by connecting a number of suspension insulators corresponding to the transmission voltage class in series. The lightning arrester 4 has a well-known structure in which a zinc oxide element is covered with a pleated resin outer skin and a discharge electrode 7 is connected to the tip thereof. A predetermined discharge gap G is formed between the discharge electrode 7 and the power application side electrode 6, and a lightning surge current flows through the zinc oxide element of the lightning arrester 4 through the discharge gap G during a lightning strike. The zinc oxide element is an insulator for commercial voltage, but has a voltage-resistance non-linear characteristic that acts as a conductor by rapidly decreasing the resistance value for high voltage caused by lightning surge, so that lightning surge current can be reduced. Immediately flow to the steel tower side to protect the ream 1.

図２は本発明の要部を示す正面図、図３はその平面図である。
図３に示すように、ヨーク２は扁平な二等辺三角形状の金属板であり、底辺の両端部に金具８によって各がいし連１の端部が接続されている。また二等辺に挟まれた頂点部分を、図示しない金具によって鉄塔アームに接続されている。なお課電側のヨーク３も同様の構造である。これらのヨーク２，３によって２連のがいし連１の両端を支持することにより２連のがいし連１は互いに平行に保たれ、送電線による張力を２等分して分散支持している。ヨーク２には、底辺に近い左右対称位置に２個のボルト挿通孔９が形成されている。 2 is a front view showing the main part of the present invention, and FIG. 3 is a plan view thereof.
As shown in FIG. 3, the yoke 2 is a flat isosceles triangle-shaped metal plate, and the ends of each insulator series 1 are connected to both ends of the bottom by metal fittings 8. Moreover, the vertex part pinched | interposed into the isosceles side is connected to the steel tower arm with the metal fittings which are not shown in figure. The yoke 3 on the charging side has the same structure. By supporting both ends of the two insulator series 1 by these yokes 2 and 3, the two insulator series 1 are kept parallel to each other, and the tension by the power transmission line is divided into two equal parts and supported. Two bolt insertion holes 9 are formed in the yoke 2 at symmetrical positions near the bottom.

ブラケット５はヨーク２に避雷器４を固定するための部材であり、ヨーク２の上面に密着する平板状の基板１０と、この基板１０から上方に立ち上がる垂直部１１と、その上端に連接された傾斜した避雷器支持部１２とを備えている。図１に示したように、避雷器４の基部はこの避雷器支持部１２に多数のボルトによって固定されており、避雷器４はがいし連１に対して斜め方向に支持されることとなる。   The bracket 5 is a member for fixing the lightning arrester 4 to the yoke 2, and includes a flat substrate 10 that is in close contact with the upper surface of the yoke 2, a vertical portion 11 that rises upward from the substrate 10, and an inclination that is connected to the upper end thereof. And a lightning arrester support 12. As shown in FIG. 1, the base portion of the lightning arrester 4 is fixed to the lightning arrester support portion 12 by a large number of bolts, and the lightning arrester 4 is supported in an oblique direction with respect to the insulator series 1.

図３、図４に示されるように、ブラケット５の基板１０には、前述したヨーク２のボルト挿通孔９に対応する２個のボルト挿通孔１３が形成されている。またブラケット５の基板１０は、ヨーク２の端部から鉄塔アーム側に突出する左右一対の腕部１４を備えており、その先端部である対向部位にはそれぞれボルト挿通孔１５が形成されている。腕部１４の中間部分は、鉄塔アームに接続するための金具を通すことができるように、凹状になっている。またヨーク２の下面には、これらの腕部１４への対向部位を備えた受板１６が配置されている。この受板１６にも、ヨーク２のボルト挿通孔９に対応する２個のボルト挿通孔１７と、腕部１４のボルト挿通孔１５に対応する２個のボルト挿通孔１８が形成されている。この実施形態では受板１６は１枚の鋼板によって形成されている。   As shown in FIGS. 3 and 4, the board 10 of the bracket 5 is formed with two bolt insertion holes 13 corresponding to the bolt insertion holes 9 of the yoke 2 described above. The base plate 10 of the bracket 5 includes a pair of left and right arm portions 14 projecting from the end of the yoke 2 toward the tower arm side, and bolt insertion holes 15 are formed at opposing portions which are the tip portions thereof. . The intermediate part of the arm part 14 is concave so that a metal fitting for connecting to the steel tower arm can be passed. On the lower surface of the yoke 2, a receiving plate 16 having a portion facing the arm portion 14 is disposed. The receiving plate 16 is also formed with two bolt insertion holes 17 corresponding to the bolt insertion holes 9 of the yoke 2 and two bolt insertion holes 18 corresponding to the bolt insertion holes 15 of the arm portion 14. In this embodiment, the receiving plate 16 is formed of a single steel plate.

図２、図３に示されるように、ブラケット５の基板１０は、ヨーク２のボルト挿通孔９、基板１０のボルト挿通孔１３及び受板１６のボルト挿通孔１７を貫通する左右一対の第１のボルト１９によってヨーク２に締結される。またこれとともにブラケット５の基板１０は、ヨーク２の外側を通り、基板１０の腕部１４に形成されたボルト挿通孔１５及び受板１６のボルト挿通孔１８を貫通する第２のボルト２０によってもヨーク２に締結されている。すなわち、第１のボルト１９はブラケット５の基板１０を直接ヨーク２に締結し、第２のボルト２０は受板１６との間でヨーク２を挟み込むようにしてブラケット５の基板１０を間接的にヨーク２に締結している。   As shown in FIGS. 2 and 3, the board 10 of the bracket 5 includes a pair of left and right first holes that pass through the bolt insertion holes 9 of the yoke 2, the bolt insertion holes 13 of the board 10, and the bolt insertion holes 17 of the receiving plate 16. The bolt 19 is fastened to the yoke 2. At the same time, the substrate 10 of the bracket 5 passes through the outside of the yoke 2 and is also received by a second bolt 20 penetrating the bolt insertion hole 15 formed in the arm portion 14 of the substrate 10 and the bolt insertion hole 18 of the receiving plate 16. Fastened to the yoke 2. That is, the first bolt 19 indirectly fastens the substrate 10 of the bracket 5 directly to the yoke 2, and the second bolt 20 indirectly holds the substrate 10 of the bracket 5 so as to sandwich the yoke 2 with the receiving plate 16. Fastened to the yoke 2.

図５はこれらの締結部分を示す模式的な断面図であり、ブラケット５の基板１０がヨーク２を貫通する左右一対の第１のボルト１９と、ヨーク２の外側を通る左右一対の第２のボルト２０とによって、ヨーク２及び受板１６に締結された状態を示している。本実施形態の避雷器取付構造はこのような構成を備えたものであるため、次の作用効果を奏することができる。   FIG. 5 is a schematic cross-sectional view showing these fastening portions. A pair of left and right first bolts 19 through which the substrate 10 of the bracket 5 penetrates the yoke 2 and a pair of left and right second bolts passing outside the yoke 2 are shown. The bolt 20 and the yoke 2 and the receiving plate 16 are fastened. Since the lightning arrester mounting structure of the present embodiment has such a configuration, the following operational effects can be achieved.

１）４本のボルト１９，２０によってブラケット５の基板１０がヨーク２に固定されるため、従来の２本ボルト方式よりも強固な固定力を確保することができる。このため、避雷器４が大型で長尺である場合にも、避雷器４の中心軸の方向がずれることがない。
２）ヨーク２には２個のボルト挿通孔９を形成するだけでよいので、ヨーク自体の強度を低下させるおそれがない。またヨーク２が２個のボルト挿通孔９を備えている既設の送電線路に対して、避雷器４を取り付けることができる。
３）第２のボルト２０はヨークの２外側でブラケット５の基板１０と受板１６の対向部位とを相互に締結するので、ヨークの端部から腕部１４がボルト締結力に弾性変形し、その分だけボルトの締結力低下を補う。従って年数が経過しても、安定した固定力を維持することができる。 1) Since the board 10 of the bracket 5 is fixed to the yoke 2 by the four bolts 19 and 20, it is possible to secure a stronger fixing force than the conventional two-bolt system. For this reason, even when the lightning arrester 4 is large and long, the direction of the central axis of the lightning arrester 4 does not shift.
2) Since it is only necessary to form the two bolt insertion holes 9 in the yoke 2, there is no possibility of reducing the strength of the yoke itself. The lightning arrester 4 can be attached to an existing power transmission line in which the yoke 2 includes two bolt insertion holes 9.
3) Since the second bolt 20 fastens the substrate 10 of the bracket 5 and the facing portion of the receiving plate 16 on the outer side of the yoke 2, the arm portion 14 elastically deforms from the end of the yoke to the bolt fastening force, Make up for the decrease in fastening force of the bolt. Therefore, a stable fixing force can be maintained even after years pass.

以上に説明した実施形態では、受板１６は図６(Ａ)に示すように基板１０とほぼ同一形状の１枚板であったが、図６(Ｂ)に示すように締結強度に影響しない部分を除去した形状とすることもできる。また図６(Ｃ)に示すように、受板１６は左右に２分割した形状、あるいは図６(Ｄ)に示すように前後に２分割した形状とすることもできる。ただし図６(Ｄ)の場合には前段落の３）に記載した作用効果を得ることはできなくなる。また、図５の基板１０または受板１６に突起を設け、その突起がヨーク２と接触するようにするとさらに安定した固定力を維持できる。   In the embodiment described above, the receiving plate 16 is a single plate having substantially the same shape as the substrate 10 as shown in FIG. 6 (A), but does not affect the fastening strength as shown in FIG. 6 (B). It can also be made into the shape which removed the part. Further, as shown in FIG. 6C, the receiving plate 16 can be formed into a shape that is divided into left and right parts or a shape that is divided into two parts in the front and rear direction as shown in FIG. 6D. However, in the case of FIG. 6 (D), the function and effect described in 3) of the previous paragraph cannot be obtained. Further, if a protrusion is provided on the substrate 10 or the receiving plate 16 of FIG. 5 and the protrusion is in contact with the yoke 2, a more stable fixing force can be maintained.

なお本発明は２連耐張がいし連への避雷器取付けに特に好適であるが、懸垂がいし連にも適用することができる。   Although the present invention is particularly suitable for mounting a lightning arrester on a double-stretch tension insulator train, it can also be applied to a suspended insulator train.

また、上記の実施形態では接地側のヨークに避雷器を取付ける例を示したが、送電線を支持する課電側のヨークに対しても、同様に避雷器を取付けることができる。   Moreover, although the example which attaches a lightning arrester to the ground side yoke was shown in said embodiment, a lightning arrester can be similarly attached also to the yoke of the power application side which supports a power transmission line.

本発明の実施形態である２連耐張がいし装置を示す全体図である。1 is an overall view showing a double continuous tension insulator according to an embodiment of the present invention. 本発明の要部を示す正面図である。It is a front view which shows the principal part of this invention. 本発明の要部を示す平面図である。It is a top view which shows the principal part of this invention. 本発明の要部を示す分解斜視図である。It is a disassembled perspective view which shows the principal part of this invention. 締結部分を示す模式的な断面図である。It is typical sectional drawing which shows a fastening part. 受板の変形例を示す図である。It is a figure which shows the modification of a receiving plate.

符号の説明Explanation of symbols

１ がいし連
２ 接地側のヨーク
３ 課電側のヨーク
４ 避雷器
５ ブラケット
６ 課電側電極
７ 放電用電極
８ 金具
９ ボルト挿通孔
１０ 基板
１１ 垂直壁
１２ 避雷器支持部
１３ ボルト挿通孔
１４ 腕部
１５ ボルト挿通孔
１６ 受板
１７ ボルト挿通孔
１８ ボルト挿通孔
１９ 第１のボルト
２０ 第２のボルト DESCRIPTION OF SYMBOLS 1 Insulation chain 2 Ground side yoke 3 Electric power application side yoke 4 Lightning arrester 5 Bracket 6 Electric power application side electrode 7 Discharge electrode 8 Metal fitting 9 Bolt insertion hole 10 Substrate 11 Vertical wall 12 Lightning arrester support part 13 Bolt insertion hole 14 Arm part 15 Bolt insertion hole 16 Receiving plate 17 Bolt insertion hole 18 Bolt insertion hole 19 First bolt 20 Second bolt

Claims (4)

２連のがいし連の接地側端部を鉄塔アームに接続、または、課電側端部を電線に接続するヨークに、避雷器の基部を支持する金属製のブラケットを固定したがいし連への避雷器取付構造であって、
ヨークの上面に密着されるブラケットの基板に、ヨークの端部から鉄塔アーム側に突出する左右一対の腕部を設け、またヨークの下面にはこれらの腕部への対向部位を備えた受板を配置し、
ヨークを貫通する左右一対のボルトによって、ブラケットの基板と受板とを相互に締結するとともに、
ヨークの外側を通る左右一対のボルトによって、ブラケットの基板の腕部と受板の対向部位とを相互に締結したことを特徴とするがいし連への避雷器取付構造。 Connect the earthing end of two insulators to the tower arm, or attach the lightning arrester to the insulator by fixing the metal bracket that supports the base of the arrester to the yoke that connects the end of the charging side to the electric wire. Structure,
A bracket substrate that is in close contact with the upper surface of the yoke is provided with a pair of left and right arms that protrude from the end of the yoke toward the tower arm, and a receiving plate that is provided with a portion facing the arms on the lower surface of the yoke And place
With a pair of left and right bolts that pass through the yoke, the bracket substrate and backing plate are fastened together,
A structure for mounting a lightning arrester to a pair of insulators, wherein a pair of left and right bolts passing through the outside of a yoke are used to fasten an arm portion of a substrate of a bracket and a facing portion of a receiving plate. がいし連が２連耐張がいし連であることを特徴とする請求項１に記載のがいし連への避雷器取付構造。   2. The structure for mounting a lightning arrester to an insulator station according to claim 1, wherein the insulator station is a two-strand tensile insulator station. ブラケットが、基板から斜め上方に立ち上がる避雷器支持部を備えたものであることを特徴とする請求項１に記載のがいし連への避雷器取付構造。   2. The lightning arrester mounting structure to the insulator string according to claim 1, wherein the bracket includes a lightning arrester support portion that rises obliquely upward from the substrate. 受け板を２枚分割構造としたことを特徴とする請求項１に記載のがいし連への避雷器取付構造。   2. The structure for attaching a lightning arrester to an insulator string according to claim 1, wherein the receiving plate is divided into two.
JP2008282900A 2008-11-04 2008-11-04 Lightning arrester mounting structure for insulator series Expired - Fee Related JP5149772B2 (en)

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Application Number Priority Date Filing Date Title
JP2008282900A JP5149772B2 (en) 2008-11-04 2008-11-04 Lightning arrester mounting structure for insulator series
MYPI20094306 MY150265A (en) 2008-11-04 2009-10-14 Structure for mounting lightning arrester on insulator assembly
GB0918673A GB2465058B (en) 2008-11-04 2009-10-23 Structure for mounting lightning arrester on insulator assembly
TW98136239A TWI435338B (en) 2008-11-04 2009-10-26 Fixed structure of arrester for obstacle string
KR1020090106067A KR101674206B1 (en) 2008-11-04 2009-11-04 Structure for mounting lightning arrester on insulator assembly
HK10105553.6A HK1138944A1 (en) 2008-11-04 2010-06-05 Structure for mounting lightning arrester on insulator assembly

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KR101236132B1 (en) * 2012-01-05 2013-02-21 대일전기 주식회사 Fixing tool of lightning arrester for a power-transmission line
JP5830482B2 (en) * 2013-03-21 2015-12-09 日本碍子株式会社 Lightning arrester mounting structure in tension insulator
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TW201019349A (en) 2010-05-16
GB0918673D0 (en) 2009-12-09
GB2465058A (en) 2010-05-12
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KR101674206B1 (en) 2016-11-08
TWI435338B (en) 2014-04-21

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