JP2011010527A - Support for upper edge line of voltage down line - Google Patents
Support for upper edge line of voltage down line Download PDFInfo
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- JP2011010527A JP2011010527A JP2009154050A JP2009154050A JP2011010527A JP 2011010527 A JP2011010527 A JP 2011010527A JP 2009154050 A JP2009154050 A JP 2009154050A JP 2009154050 A JP2009154050 A JP 2009154050A JP 2011010527 A JP2011010527 A JP 2011010527A
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本発明は、高圧引下線上部縁線支持具に関し、特に、高圧配電線から変圧器に至る高圧引下線（ＰＤ線）の上部支持碍子までの高圧引下線上部縁線を間接活線工法により切断・接続する作業に用いるのに好適な高圧引下線上部縁線支持具に関する。 TECHNICAL FIELD The present invention relates to a high-voltage underline upper edge line support device, and in particular, an indirect hot wire method for connecting a high-voltage underline upper edge line from a high-voltage distribution line to an upper support insulator of a high-voltage underline (PD line) from a transformer. It is related with the high voltage | stretch underline upper edge line support tool suitable for using for the operation | work cut | disconnected and connected by this.
従来、図５に示すような電柱（不図示）上に取り付けられた変圧器６を取り替える際に間接活線工法により高圧引下線上部縁線２ａを切断・接続する作業は、以下に示す手順で行なわれている。 Conventionally, when replacing the transformer 6 mounted on a utility pole (not shown) as shown in FIG. 5, the work of cutting and connecting the high-voltage underline upper edge line 2a by the indirect hot wire method is as follows. It is done in.
作業員は、高所作業車のバケットに乗って、上部支持碍子３から下部支持碍子４までの高圧引下線中線２ｂに短絡防止用防護具を取り付ける。続いて、作業員は、高圧配電線１から上部支持碍子３までの高圧引下線上部縁線２ａの切断箇所まで高所作業車のバケットを移動させたのち、高圧引下線上部縁線２ａを切断し、切断した高圧引下線上部縁線２ａを短絡防止用防護具が取り付けられた高圧引下線中線２ｂまで移動する。このとき、作業員は、３本の高圧引下線上部縁線２ａを１本ずつ切断しては高圧引下線中線２ｂまで移動する。 The worker gets on the bucket of the aerial work vehicle and attaches a short-circuit prevention protective device to the high-voltage underline middle line 2 b from the upper support insulator 3 to the lower support insulator 4. Subsequently, the worker moves the bucket of the aerial work vehicle to the cutting point of the high-voltage underline upper edge line 2a from the high-voltage distribution line 1 to the upper support insulator 3, and then the high-voltage underline upper edge line 2a. And the cut high voltage underline upper edge line 2a is moved to the high voltage underline middle line 2b to which the protective device for short circuit prevention is attached. At this time, the worker cuts the three high-voltage underline upper edge lines 2a one by one and moves to the high-voltage underline middle line 2b.
その後、既設の変圧器６を新しい変圧器６に取り替えると、作業員は、高圧引下線上部縁線２ａの接続準備箇所から接続箇所まで高所作業車のバケットを移動させたのち、切断した高圧引下線上部縁線２ａを接続する。このときも、作業員は、１本の高圧引下線上部縁線２ａを接続しては次の高圧引下線上部縁線２ａを接続する。 After that, when the existing transformer 6 was replaced with a new transformer 6, the worker moved the bucket of the aerial work vehicle from the connection preparation point to the connection point of the high voltage underline upper edge line 2a and then disconnected it. Connect the upper edge line 2a of the high voltage underline. Also at this time, the worker connects one high-voltage underline upper edge line 2a and then connects the next high-voltage underline upper edge line 2a.
３本の高圧引下線上部縁線２ａの接続作業がすべて終わると、作業員は、高圧引下線中線２ｂの短絡防止用防護具の取外箇所まで高所作業車のバケットを移動させたのち、短絡防止用防護具を取り外す。 After all of the connection work of the three high-voltage underline upper edge lines 2a has been completed, the worker has moved the bucket of the aerial work vehicle to the place where the protective equipment for short-circuit prevention is removed from the high-voltage underline middle line 2b. After that, remove the protective device for short circuit prevention.
なお、本出願人は、下記の特許文献１において、合わせ面となる体部にボルト貫通孔を有して概略Ｖ型に対形成された可動コネクタ部材と固定コネクタ部材がそれぞれ先端方向に対向形成した半円弧状の高圧線把持部を備え、可動コネクタ部材がナット側端面をザグリ形成した弾性体圧入室を有し、固定コネクタ部材がボルト戴頭側端面に条溝を刻設した引下線挾持部と体部端面から突設した***作把手を有し、両コネクタ部材間にボルトを貫通すとともにボルト脚杆に弾性体を介装して弾性体圧入室に収容しナット固定して、活線棒により***作把手を掴持し、高圧線に対して可動コネクタ部材を弾性的に銜口操作または蝶番操作して離接又は脱着することにより、活線棒による簡単操作で高圧線を仮把持するとともにその状態のまま引下線芯線と高圧線とを本締め可能とした間接活線作業用引下線コネクタを提案している。 In addition, in the following Patent Document 1, the applicant of the present invention has a movable connector member and a fixed connector member, which are opposed to each other in the distal direction, having a bolt through hole in a body portion serving as a mating surface, A semicircular arc-shaped high-voltage wire gripping part, the movable connector member has an elastic body press-fitting chamber with a counterbore formed on the end surface of the nut, and the fixed connector member holds the pull-down line with a groove grooved on the end surface of the bolt head And an operated handle protruding from the end surface of the body and the body. The bolt penetrates between the two connector members, and an elastic body is interposed between the bolt leg rods. By grasping the handle to be operated by the wire rod and elastically operating the movable connector member with respect to the high-voltage wire, or by connecting / disconnecting it with a hinge, the high-voltage wire can be temporarily attached by a simple operation with a live wire rod. Hold and pull down as it is A core wire and high-voltage lines have proposed the tightening possible and the indirect hot working cuts wire connector.
しかしながら、上述した従来の高圧引下線上部縁線２ａの切断・接続作業では、以下に示すような問題があった。
（１）高圧引下線上部縁線２ａを切断する前に短絡防止用防護具を高圧引下線中線２ｂに取り付ける必要がある。
（２）高圧引下線中線２ｂに短絡防止用防護具を取り付けたのちに高所作業車のバケットを高圧引下線上部縁線２ａの切断箇所まで移動させる必要がある。
（３）切断した高圧引下線上部縁線２ａを短絡防止用防護具が取り付けられた高圧引下線中線２ｂまで移動する必要がある。
However, the above-described conventional cutting and connecting work for the high-voltage underline upper edge line 2a has the following problems.
(1) Before cutting the high-voltage underline upper edge line 2a, it is necessary to attach a protective device for short-circuit prevention to the high-voltage underline middle line 2b.
(2) It is necessary to move the bucket of an aerial work vehicle to the cutting position of the upper edge line 2a of the high voltage underline after attaching the protective device for short circuit prevention to the high voltage underline middle line 2b.
(3) It is necessary to move the cut high-voltage underline upper edge line 2a to the high-voltage underline middle line 2b to which the short-circuit prevention protector is attached.
本発明の目的は、短絡防止用防護具を不要にできるとともに高所作業車のバケットの移動回数を少なくすることができる高圧引下線上部縁線支持具を提供することにある。 An object of the present invention is to provide a high-voltage underline upper edge line support that can eliminate the need for a protective device for preventing a short circuit and can reduce the number of times the bucket of an aerial work vehicle moves.
本発明の高圧引下線上部縁線支持具は、高圧配電線（１）から変圧器（６）に至る高圧引下線の上部支持碍子（３）までの高圧引下線上部縁線（２ａ）を間接活線工法により切断・接続する作業に用いる高圧引下線上部縁線支持具（１０）であって、絶縁棒（２０）と、該絶縁棒の一方の端部に取り付けられた、かつ、前記高圧配電線を把持するための高圧配電線把持手段（３０）と、該絶縁棒の他方の端部に取り付けられた、かつ、前記高圧引下線上部縁線を把持するための高圧引下線上部縁線把持手段（４０）とを具備することを特徴とする。
ここで、前記高圧配電線把持手段が、前記絶縁棒の中心軸を回転軸として任意の角度に回転されて固定されるとともに該絶縁棒の中心軸と垂直な直線を回転軸として任意の角度に回転されて固定されるように前記絶縁棒に取り付けられていてもよい。
前記高圧引下線上部縁線把持手段が、前記絶縁棒の中心軸を回転軸として任意の角度に回転されて固定されるとともに該絶縁棒の中心軸と垂直な直線を回転軸として任意の角度に回転されて固定されるように前記絶縁棒に取り付けられていてもよい。
前記高圧配電線把持手段が、スライド台（３１）と、該スライド台に固定された固定把持部材（３３）と、ホットスティックを用いて操作可能なスライド操作部材（３４）と、該スライド操作部材が前記ホットスティックを用いて操作されると、前記固定把持部材に向ってスライドされて前記高圧配電線を該固定把持部材とで挟んで把持するスライド把持部材（３２）とを備えてもよい。
The high voltage underline upper edge line support tool of the present invention includes a high voltage underline upper edge line (2a) from the high voltage distribution line (1) to the upper support insulator (3) of the high voltage underline extending from the transformer (6). A high-voltage underline upper edge line support (10) used for the work of cutting and connecting with an indirect hot wire method, attached to an insulating rod (20) and one end of the insulating rod; and A high-voltage distribution line gripping means (30) for gripping the high-voltage distribution line, and a high-voltage line attached to the other end of the insulating bar and for gripping the high-voltage underline upper edge line And an underline upper edge line gripping means (40).
Here, the high-voltage distribution line gripping means is fixed by being rotated at an arbitrary angle with the central axis of the insulating rod as a rotational axis, and at an arbitrary angle with a straight line perpendicular to the central axis of the insulating rod as a rotational axis. You may attach to the said insulation rod so that it may rotate and be fixed.
The high-voltage underline upper edge line gripping means is fixed by being rotated at an arbitrary angle with the central axis of the insulating rod as a rotational axis, and at an arbitrary angle with a straight line perpendicular to the central axis of the insulating rod as a rotational axis. It may be attached to the insulating rod so as to be rotated and fixed.
The high-voltage distribution line gripping means includes a slide base (31), a fixed grip member (33) fixed to the slide base, a slide operation member (34) operable with a hot stick, and the slide operation member May be provided with a slide gripping member (32) that is slid toward the fixed gripping member and grips the high-voltage distribution line with the fixed gripping member when operated using the hot stick.
本発明の高圧引下線上部縁線支持具は、以下に示す効果を奏する。
切断した高圧引下線上部縁線を高圧引下線上部縁線支持具によって把持したままにすることができるので、切断した高圧引下線上部縁線を移動する必要がなくなるとともに、短絡防止用防護具を高圧引下線中線に取り付ける必要がなくなる。また、短絡防止用防護具を高圧引下線中線に取り付ける必要がなくなるので、高圧引下線中線に短絡防止用防護具を取り付けたのちに高所作業車のバケットを高圧引下線上部縁線の切断箇所まで移動させる必要もなくなる。その結果、作業効率が向上するとともに、作業員が高圧活線へ近づく回数を最小にすることができ作業の安全性が向上する。
The high-voltage underline upper edge line support of the present invention has the following effects.
The high-voltage underline upper edge line can be held by the high-voltage underline upper edge line support tool, eliminating the need to move the cut high-voltage underline upper edge line and preventing short circuits. There is no need to attach protective equipment to the high voltage underline. In addition, it is no longer necessary to attach a protective device for short-circuit prevention to the high-voltage underline middle line. There is no need to move to the cutting point. As a result, the work efficiency is improved and the number of times the worker approaches the high-pressure live line can be minimized, thereby improving the work safety.
上記の目的を、高圧配電線を把持するための高圧配電線把持手段を絶縁棒の一方の端部に取り付けるとともに高圧引下線上部縁線を把持するための高圧引下線上部縁線把持手段を絶縁棒の他方の端部に取り付けて高圧引下線上部縁線支持具を構成することにより実現した。 High-voltage underline upper edge line holding means for attaching the high-voltage distribution line holding means for holding the high-voltage distribution line to one end of the insulating rod and holding the high-voltage underline upper edge line Is attached to the other end of the insulating rod to constitute a high-voltage underline upper edge line support.
以下、本発明の高圧引下線上部縁線支持具の実施例について、図面を参照して説明する。
本発明の一実施例による高圧引下線上部縁線支持具１０は、図１に示すように、円筒状の絶縁棒２０と、２個の固定つまみ２１と、絶縁棒２０の一方の端部に取り付けられた高圧配電線把持部３０（高圧配電線把持手段）と、絶縁棒２０の他方の端部に取り付けられた縁線把持部４０（高圧引下線上部縁線把持手段）と、絶縁棒２０の軸方向（長手方向）の中心よりも高圧配電線把持部３０側に取り付けられた保護板５０とを具備する。
Hereinafter, embodiments of the high-voltage underline upper edge line support of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a high pressure underline upper edge line support 10 according to an embodiment of the present invention includes a cylindrical insulating rod 20, two fixing knobs 21, and one end of the insulating rod 20. The high-voltage distribution line gripping part 30 (high-voltage distribution line gripping means) attached to the wire and the edge line gripping part 40 (high-voltage underline upper edge line gripping means) attached to the other end of the insulating rod 20 are insulated. And a protection plate 50 attached to the high-voltage distribution line gripping part 30 side of the center of the rod 20 in the axial direction (longitudinal direction).
ここで、絶縁棒２０の両端部の内周面には、図１に破線で示すように固定つまみ２１の裏面に取り付けられた雄ネジと螺合する雌ねじが形成されている。 Here, on the inner peripheral surfaces of both end portions of the insulating rod 20, as shown by broken lines in FIG. 1, female screws that are screwed with male screws attached to the back surface of the fixing knob 21 are formed.
高圧配電線把持部３０は、スライド台３１と、スライド把持部材３２と、固定把持部材３３と、スライド操作部材３４と、支持部材３５と、支持部材固定部材３６と、固定軸部材３７と、支持部材固定つまみ３８と、連結軸３９とを備える。 The high-voltage distribution line gripping unit 30 includes a slide base 31, a slide gripping member 32, a fixed gripping member 33, a slide operation member 34, a support member 35, a support member fixing member 36, a fixed shaft member 37, and a support. A member fixing knob 38 and a connecting shaft 39 are provided.
スライド把持部材３２と固定把持部材３３とは、高圧配電線１（図５参照）を挟んで把持する面（以下、「把持面」と称する。）が互いに対向するようにスライド台３１に取り付けられている。このため、スライド把持部材３２および固定把持部材３３の把持面は曲面（凹面）とされている。また、スライド把持部材３２の上面の固定把持部材３３側は、スライド把持部材３２の下面よりも固定把持部材３３側に突出している。
スライド把持部材３２の底部には、図２（ａ）に破線で示すようにスライド操作部材３４の裏面に取り付けられた雄ネジが貫通される貫通孔が設けられている。また、この貫通孔の内周面には、スライド操作部材３４の雄ネジに螺合する雌ネジが形成されている。すなわち、スライド把持部材３２は、同図に矢印で示すように、ホットスティック（共用操作棒）を用いてスライド操作部材３４を回すことによりスライド操作部材３４の雄ネジの長手方向に沿ってスライドするように取り付けられている。
固定把持部材３３はスライド台３１の上面に固定されている。また、固定把持部材３３の上面の中央部にはスライド台３１ｂの上面に対して垂直な段差が設けられており、スライド把持部材３２の上面の固定把持部材３３側の端面がこの段差に当たることによりスライド把持部材３２が図２（ａ）に破線で示す位置よりもスライドしないようにされている。
これにより、作業員がホットスティック（共用操作棒）用いてスライド操作部材３４を回してスライド把持部材３２を固定把持部材３３に向ってスライドさせることにより、高圧配電線１をスライド把持部材３２の把持面と固定把持部材３３の把持面とで挟んで把持させることができる。
The slide gripping member 32 and the fixed gripping member 33 are attached to the slide base 31 so that surfaces (hereinafter referred to as “gripping surfaces”) gripping the high-voltage distribution line 1 (see FIG. 5) face each other. ing. For this reason, the gripping surfaces of the slide gripping member 32 and the fixed gripping member 33 are curved surfaces (concave surfaces). Further, the fixed gripping member 33 side of the upper surface of the slide gripping member 32 protrudes toward the fixed gripping member 33 side from the lower surface of the slide gripping member 32.
A through-hole through which a male screw attached to the back surface of the slide operation member 34 passes is provided at the bottom of the slide gripping member 32 as indicated by a broken line in FIG. Further, a female screw that is screwed into a male screw of the slide operation member 34 is formed on the inner peripheral surface of the through hole. That is, the slide gripping member 32 slides along the longitudinal direction of the male screw of the slide operation member 34 by turning the slide operation member 34 using a hot stick (common operation rod), as indicated by an arrow in FIG. It is attached as follows.
The fixed gripping member 33 is fixed to the upper surface of the slide table 31. In addition, a step perpendicular to the upper surface of the slide base 31b is provided at the center of the upper surface of the fixed gripping member 33, and the end surface of the upper surface of the slide gripping member 32 on the fixed gripping member 33 side hits this step. The slide gripping member 32 is prevented from sliding from the position indicated by the broken line in FIG.
As a result, the operator rotates the slide operation member 34 using a hot stick (common operation rod) and slides the slide gripping member 32 toward the fixed gripping member 33, thereby gripping the high-voltage distribution line 1 by the slide gripping member 32. It can be held between the surface and the gripping surface of the fixed gripping member 33.
スライド台３１およびスライド操作部材３４は支持部材３５によって支持されている。 The slide table 31 and the slide operation member 34 are supported by a support member 35.
支持部材３５は、図２（ｂ）に示すように連結軸３９の一方の端部に固定されており、連結軸３９と共に回転可能とされている。
また、支持部材３５の支持部材固定部材３６側の側面には、１本の固定ピン３５ａがこの側面に対して垂直に設けられている。
As shown in FIG. 2B, the support member 35 is fixed to one end of the connecting shaft 39, and can be rotated together with the connecting shaft 39.
In addition, one fixing pin 35a is provided on the side surface of the support member 35 on the support member fixing member 36 side so as to be perpendicular to the side surface.
支持部材固定部材３６は、図２（ｂ）に破線で示すように連結軸３９の他方の端部が貫通される貫通孔を有する上部部材と、図１に破線で示すように絶縁棒２０の一方の端部が貫通される貫通孔を有する下部部材とを備える。
これにより、支持部材固定部材３６は、連結軸３９の周方向に回転可能とされているとともに、絶縁棒２０の周方向に回転可能とされている。
The support member fixing member 36 includes an upper member having a through hole through which the other end of the connecting shaft 39 penetrates as shown by a broken line in FIG. 2B, and an insulating rod 20 as shown by a broken line in FIG. And a lower member having a through hole through which one end is passed.
Thus, the support member fixing member 36 is rotatable in the circumferential direction of the connecting shaft 39 and is rotatable in the circumferential direction of the insulating rod 20.
固定軸部材３７は絶縁棒２０の一方の端部に固定されている。 The fixed shaft member 37 is fixed to one end of the insulating rod 20.
支持部材固定部材３６の上部部材の支持部材３５側の側面の外周部には、固定ピン３５ａが挿入される挿入孔３６ａが周方向に沿って所定の間隔で複数個形成されている。また、連結軸３９の他方の端部の外周面には、図２（ｂ）に破線で示すように支持部材固定つまみ３８の内周面に形成された雌ネジと螺合する雄ネジが形成されている。
これにより、同図に矢印で示すように支持部材固定つまみ３８を回せば、支持部材固定部材３６を連結軸３９の軸方向（長手方向）に沿って移動させることができる。その結果、支持部材３５を連結軸３９の周方向に所望の角度ほど回転したのち、支持部材固定つまみ３８を回して支持部材固定部材３６を支持部材３５側に移動させて固定ピン３５ａを複数個の挿入孔３６ａの１つに挿入させることにより、支持部材３５をこの角度で固定することができる。
A plurality of insertion holes 36a into which the fixing pins 35a are inserted are formed at predetermined intervals along the circumferential direction on the outer peripheral portion of the side surface of the upper member of the support member fixing member 36 on the support member 35 side. Further, on the outer peripheral surface of the other end of the connecting shaft 39, a male screw is formed which is screwed with a female screw formed on the inner peripheral surface of the support member fixing knob 38 as shown by a broken line in FIG. Has been.
Thereby, the support member fixing member 36 can be moved along the axial direction (longitudinal direction) of the connecting shaft 39 by turning the support member fixing knob 38 as indicated by an arrow in FIG. As a result, after the support member 35 is rotated by a desired angle in the circumferential direction of the connecting shaft 39, the support member fixing knob 38 is turned to move the support member fixing member 36 to the support member 35 side, and a plurality of fixing pins 35a are provided. The support member 35 can be fixed at this angle by being inserted into one of the insertion holes 36a.
また、上述したように絶縁棒２０の一方の端部の内周面には固定つまみ２１の裏面に取り付けられた雄ネジと螺合する雌ねじが形成されているため、支持部材固定部材３６を絶縁棒２０の周方向に所望の角度ほど回転したのち、固定つまみ２１を回して支持部材固定部材３６を固定軸部材３７側に移動させることにより、支持部材固定部材３６を固定つまみ２１および固定軸部材３７で挟んでこの角度で固定することができる（図１参照）。 Further, as described above, the inner peripheral surface of one end portion of the insulating rod 20 is formed with the female screw that is screwed with the male screw attached to the back surface of the fixing knob 21, so that the support member fixing member 36 is insulated. After rotating the rod 20 by a desired angle in the circumferential direction, the fixing knob 21 is turned to move the supporting member fixing member 36 toward the fixing shaft member 37, whereby the supporting member fixing member 36 is fixed to the fixing knob 21 and the fixing shaft member. 37 and can be fixed at this angle (see FIG. 1).
その結果、高圧配電線把持部３０を絶縁棒２０の中心軸を回転軸として任意の角度に回転して固定するとともに絶縁棒２０の中心軸と垂直な直線を回転軸として任意の角度に回転して固定することができるため、スライド把持部材３２および固定把持部材３３によって高圧配電線１を把持する位置を高圧配電線把持部３０（支持部材３５および支持部材固定部材３６）の回転範囲内で自由に変えることができるので、作業現場の高圧配電線１の架線状況に応じて高圧配電線１を高圧引下線上部縁線支持具１０で把持することができる。 As a result, the high-voltage distribution line gripping portion 30 is rotated and fixed at an arbitrary angle with the central axis of the insulating rod 20 as the rotation axis, and rotated at an arbitrary angle with a straight line perpendicular to the central axis of the insulating rod 20 as the rotation axis. The position where the high-voltage distribution line 1 is gripped by the slide gripping member 32 and the fixed gripping member 33 can be freely set within the rotation range of the high-voltage distribution line gripping portion 30 (the support member 35 and the support member fixing member 36). Therefore, the high-voltage distribution line 1 can be held by the high-voltage underline upper edge line support tool 10 in accordance with the overhead state of the high-voltage distribution line 1 at the work site.
縁線把持部４０は、クリップ４１と、クリップ支持部材４２と、固定軸部材４３とを備える。 The edge line gripping portion 40 includes a clip 41, a clip support member 42, and a fixed shaft member 43.
クリップ４１は、図１に矢印で示すように支持軸４１ａを回転軸として回転可能なように、支持軸４１ａによってクリップ支持部材４２の側面に取り付けられている。 The clip 41 is attached to the side surface of the clip support member 42 by a support shaft 41a so as to be rotatable about the support shaft 41a as a rotation shaft as indicated by an arrow in FIG.
クリップ支持部材４２は、図１に破線で示すように絶縁棒２０の他方の端部が貫通される貫通孔を有する。
これにより、クリップ支持部材４２は連結軸３９の周方向に回転可能とされている。
The clip support member 42 has a through-hole through which the other end of the insulating rod 20 passes, as indicated by a broken line in FIG.
Thereby, the clip support member 42 can be rotated in the circumferential direction of the connecting shaft 39.
固定軸部材４３は絶縁棒２０の他方の端部に固定されている。
これにより、上述したように絶縁棒２０の他方の端部の内周面には固定つまみ２１の裏面に取り付けられた雄ネジと螺合する雌ねじが形成されているため、クリップ支持部材４２を絶縁棒２０の周方向に所望の角度ほど回転したのち固定つまみ２１を回してクリップ支持部材４２を固定軸部材４３側に移動させることにより、クリップ支持部材４２を固定つまみ２１および固定軸部材４３で挟んでこの角度で固定することができる（図１参照）。
The fixed shaft member 43 is fixed to the other end of the insulating rod 20.
Thus, as described above, the inner peripheral surface of the other end of the insulating rod 20 is formed with the female screw that is screwed with the male screw attached to the back surface of the fixing knob 21, so that the clip support member 42 is insulated. After rotating the rod 20 by a desired angle in the circumferential direction, the fixing knob 21 is turned to move the clip supporting member 42 toward the fixing shaft member 43, so that the clip supporting member 42 is sandwiched between the fixing knob 21 and the fixing shaft member 43. Can be fixed at this angle (see FIG. 1).
その結果、縁線把持部４０を絶縁棒２０の中心軸を回転軸として任意の角度に回転して固定するとともに絶縁棒２０の中心軸と垂直な直線を回転軸として任意の角度に回転して固定することができるため、クリップ４１によって高圧引下線上部縁線２ａを把持する位置を縁線把持部４０（クリップ４１およびクリップ支持部材４２）の回転範囲内で自由に変えることができるので、作業現場の高圧引下線上部縁線２ａの架線状況に応じて高高圧引下線上部縁線２ａを高圧引下線上部縁線支持具１０で把持することができる。 As a result, the edge line gripping portion 40 is rotated and fixed at an arbitrary angle with the central axis of the insulating rod 20 as a rotation axis, and is rotated at an arbitrary angle with a straight line perpendicular to the central axis of the insulating rod 20 as a rotation axis. Since it can be fixed, the position where the clip 41 holds the high-voltage underline upper edge line 2a can be freely changed within the rotation range of the edge line gripping portion 40 (clip 41 and clip support member 42). The high-voltage underline upper edge line 2a can be gripped by the high-voltage underline upper edge line support 10 in accordance with the overhead line condition of the high-voltage underline upper edge line 2a at the work site.
保護板５０は、絶縁棒２０の２つの固定軸部材３７，４３の間に固定されている。
また、作業員は絶縁棒２０の固定軸部材４３の下方部分（クリップ支持部材４２側の部分）を素手で持って作業することがあるため、保護板５０と固定軸部材４３との間隔Ｌは、間接活線作業を行う場合の頭上における近接限界距離が３００ｍｍであることから、３００ｍｍ以上とされている。
The protection plate 50 is fixed between the two fixed shaft members 37 and 43 of the insulating rod 20.
Further, since the worker may work with the lower part (the part on the clip support member 42 side) of the fixed shaft member 43 of the insulating rod 20 with bare hands, the interval L between the protective plate 50 and the fixed shaft member 43 is Since the proximity limit distance above the head when performing indirect hot-line work is 300 mm, it is set to 300 mm or more.
次に、高圧引下線上部縁線支持具１０を用いて間接活線工法による高圧引下線上部縁線の切断・接続作業を行う手順について、図３および図４を参照して説明する。
作業員は、２個の高圧引下線上部縁線支持具１０（以下、「第１および第２の高圧引下線上部縁線支持具１０」と称する。）を用意し、高圧配電線１の架線状況に応じて第１および第２の高圧引下線上部縁線支持具１０の支持部材３５および支持部材固定部材３６を所望の角度だけ回転させたのち高圧配電線把持部３０を絶縁棒２０に固定するとともに、高圧引下線上部縁線２ａの架線状況に応じて第１および第２の高圧引下線上部縁線支持具１０のクリップ４１およびクリップ支持部材４２を所望の角度だけ回転させたのち縁線把持部４０を絶縁棒２０に固定する。
Next, a procedure for cutting and connecting the high-voltage underline upper edge line by the indirect hot wire method using the high-voltage underline upper edge line support 10 will be described with reference to FIGS. 3 and 4.
An operator prepares two high-voltage underline upper edge line supports 10 (hereinafter referred to as “first and second high-voltage underline upper edge line supports 10”), and the high-voltage distribution line 1. After the support member 35 and the support member fixing member 36 of the first and second high-voltage underline upper edge line support 10 are rotated by a desired angle in accordance with the state of the overhead wire, the high-voltage distribution line gripping portion 30 is insulated. The clip 41 and the clip support member 42 of the first and second high-voltage underline upper edge line support 10 are rotated by a desired angle according to the overhead line condition of the high-voltage underline upper edge line 2a. After that, the edge line gripping portion 40 is fixed to the insulating rod 20.
その後、作業員は、高所作業車に乗って、第１の高圧引下線上部縁線支持具１０の固定軸部材４３の下方部分を持ってホットスティック（共用操作棒）をスライド操作部材３４に取り付けた後にスライド把持部材３２を一方の端側の高圧配電線１（以下、「第１の高圧配電線１」と称する。）に引っ掛けたのち、ホットスティック（共用操作棒）を用いて第１の高圧引下線上部縁線支持具１０のスライド操作部材３４を回すことにより第１の高圧配電線１を第１の高圧引下線上部縁線支持具１０の高圧配電線把持部３０で把持する。
続いて、作業員は、ホットスティック（絶縁ヤットコ）を用いて第１の高圧引下線上部縁線支持具１０のクリップ４１を開閉して第１の高圧配電線１から引き出されている高圧引下線上部縁線２ａ（以下、「第１の高圧引下線上部縁線２ａ」と称する。）を挟むことにより第１の高圧引下線上部縁線２ａを第１の高圧引下線上部縁線支持具１０の縁線把持部４０で把持する（図３参照）。
After that, the worker gets on the aerial work vehicle and holds the lower part of the fixed shaft member 43 of the first high-voltage underline upper edge line support 10 and slides the hot stick (common operation rod) to the slide operation member 34. After the slide gripping member 32 is hooked on the high-voltage distribution line 1 on one end side (hereinafter referred to as “first high-voltage distribution line 1”) after being attached to the first, using a hot stick (common operation rod) The first high-voltage distribution line 1 is moved by the high-voltage distribution line gripping portion 30 of the first high-voltage underline upper edge line support 10 by turning the slide operation member 34 of the first high-voltage underline upper edge line support 10. Hold it.
Subsequently, the worker opens and closes the clip 41 of the first high-voltage underline upper edge line support tool 10 using a hot stick (insulating Yatco) and opens the high-voltage draw drawn from the first high-voltage distribution line 1. By sandwiching an underline upper edge line 2a (hereinafter referred to as "first high-voltage underline upper edge line 2a"), the first high-voltage underline upper edge line 2a is changed to the upper part of the first high-voltage underline. It grips with the edge line holding part 40 of the edge line support tool 10 (refer FIG. 3).
その後、作業員は、同様にして、第２の高圧引下線上部縁線支持具１０の高圧配電線把持部３０で他方の端側の高圧配電線１（以下、「第２の高圧配電線１」と称する。）を把持するとともに、第２の高圧引下線上部縁線支持具１０の縁線把持部４０で第２の高圧配電線１から引き出されている高圧引下線上部縁線２ａ（以下、「第２の高圧引下線上部縁線２ａ」と称する。）を把持する（図３参照）。 Thereafter, the worker similarly uses the high-voltage distribution line gripping portion 30 of the second high-voltage underline upper edge line support tool 10 to connect the high-voltage distribution line 1 on the other end side (hereinafter, “second high-voltage distribution line”). 1).) And the high-voltage underline upper edge line drawn from the second high-voltage distribution line 1 by the edge line gripping portion 40 of the second high-voltage underline upper edge line support tool 10. 2a (hereinafter referred to as “second high-voltage underline upper edge line 2a”) (see FIG. 3).
その後、作業員は、第１の高圧引下線上部縁線２ａを第１の高圧引下線上部縁線支持具１０で把持した箇所よりも第１の高圧配電線１側で第１の高圧引下線上部縁線２ａを切断したのち、第２の高圧引下線上部縁線２ａを第２の高圧引下線上部縁線支持具１０で把持した箇所よりも第２の高圧配電線１側で第２の高圧引下線上部縁線２ａを切断する。このとき、切断後の第１および第２の高圧引下線上部縁線２ａは図４に示すように第１および第２の高圧引下線上部縁線支持具１０で把持されているため、作業員は切断後の第１および第２の高圧引下線上部縁線２ａを高圧引下線中線２ｂ（図５参照）まで移動する必要がない。 Thereafter, the worker uses the first high-voltage distribution line 1 side to place the first high-voltage underline upper edge line 2a with the first high-voltage underline upper edge line support tool 10 at the first high-voltage distribution line 1 side. After cutting the underline upper edge line 2a, the second high-voltage distribution line 1 is more than the part where the second high-voltage underline upper edge line 2a is gripped by the second high-voltage underline upper edge line support tool 10. On the side, the second high-voltage underline upper edge line 2a is cut. At this time, since the first and second high-voltage underline upper edge line 2a after being cut is gripped by the first and second high-voltage underline upper edge line support 10 as shown in FIG. The operator does not need to move the first and second high-voltage underline upper edge lines 2a after cutting to the high-voltage underline middle line 2b (see FIG. 5).
その後、作業員は、残りの中央の高圧引下線上部縁線２ａを切断する。このとき、第１および第２の高圧引下線上部縁線２ａは既に切断されているため、３本の高圧引下線中線２ｂには電気は流れていないので、切断後の中央の高圧引下線上部縁線２ａは上部支持碍子３から垂れ下がったままとしても特に問題ない。 Thereafter, the worker cuts the remaining central high-voltage underline upper edge line 2a. At this time, since the first and second high-voltage underline upper edge lines 2a have already been cut, electricity does not flow through the three high-voltage underline middle lines 2b. Even if the underline upper edge line 2a is hung from the upper support insulator 3, there is no particular problem.
その後、既設の変圧器６を新しい変圧器６に取り替えると、作業員は、高圧引下線上部縁線支持具１０で把持していない中央の高圧引下線上部縁線２ａを接続し、続いて第１の高圧引下線上部縁線支持具１０で把持した第１の高圧引下線上部縁線２ａを接続したのち、第２の高圧引下線上部縁線支持具１０で把持した第２の高圧引下線上部縁線２ａを接続する。 Thereafter, when the existing transformer 6 is replaced with a new transformer 6, the worker connects the central high voltage underline upper edge line 2a that is not gripped by the high voltage underline upper edge line support tool 10, and then continues. After connecting the first high-voltage underline upper edge line support 2 a gripped by the first high-voltage underline upper edge line support tool 10, 2 high voltage underline upper edge line 2a is connected.
その後、作業員は、ホットスティック（絶縁ヤットコ）を用いて第１の高圧引下線上部縁線支持具１０のクリップ４１を開いて第１の高圧引下線上部縁線２ａを外すとともに、ホットスティック（共用操作棒）を第１の高圧引下線上部縁線支持具１０のスライド操作部材３４に取り付けた後にスライド操作部材３４を回して第１の高圧引下線上部縁線支持具１０を第１の高圧配電線１から取り外す。続いて、作業員は第２の高圧引下線上部縁線支持具１０を同様にして取り外す。 Thereafter, the worker opens the clip 41 of the first high-voltage underline upper edge line support 10 using a hot stick (insulating Yatco) to remove the first high-voltage underline upper edge line 2a, After the stick (common operation rod) is attached to the slide operation member 34 of the first high-voltage underline upper edge line support tool 10, the slide operation member 34 is turned so that the first high-pressure underline upper edge line support tool 10 is Remove from the first high-voltage distribution line 1. Subsequently, the worker removes the second high-voltage underline upper edge line support 10 in the same manner.
以上の説明では、高圧配電線１をより確実に把持するためにスライド把持部材３２と固定把持部材３３とで高圧配電線１を挟んで把持する高圧配電線把持部３０を用いたが、縁線把持部４０と同様の構成の高圧配電線把持部を用いてクリップで高圧配電線１を把持するようにしてもよい。 In the above description, in order to hold the high-voltage distribution line 1 more reliably, the high-voltage distribution line gripping portion 30 that holds the high-voltage distribution line 1 with the slide gripping member 32 and the fixed gripping member 33 is used. You may make it hold | grip the high voltage distribution line 1 with a clip using the high voltage distribution line holding part of the structure similar to the holding part 40. FIG.
また、高圧引下線上部縁線２ａをクリップ４１で挟んで把持する縁線把持部４０を用いたが、高圧引下線上部縁線２ａをより確実に把持するために高圧配電線把持部３０と同様の構成の縁線把持部を用いてスライド把持部材３２と固定把持部材３３とで高圧引下線上部縁線２ａを挟んで把持するようにしてもよい。 Further, although the edge line gripping portion 40 that grips and holds the high-voltage underline upper edge line 2a with the clip 41 is used, the high-voltage distribution line gripping portion 30 is used in order to more reliably grip the high-voltage underline upper edge line 2a. It is also possible to use the edge line gripping part having the same configuration as that described above to hold the slide gripping member 32 and the fixed gripping member 33 with the high-voltage underline upper edge line 2a interposed therebetween.
さらに、固定ピン３５を用いて支持部材３５を固定したが、支持部材３５および支持部材固定部材３６の接触面（合わせ面）に複数の係合凸部および係合凹部をそれぞれ形成して、支持部材３５の係合凸部と支持部材固定部材３６の係合凹部とを係合させることにより、支持部材３５を固定するようにしてもよい。 Furthermore, although the support member 35 is fixed using the fixing pin 35, a plurality of engagement convex portions and engagement concave portions are formed on the contact surfaces (mating surfaces) of the support member 35 and the support member fixing member 36, respectively. The support member 35 may be fixed by engaging the engagement convex portion of the member 35 with the engagement concave portion of the support member fixing member 36.
以上では、作業者が高所作業車のバケットに乗って作業を行う場合について説明したが、作業者が電柱に登って行う柱上作業においても、高圧引下線上部縁線支持具１０を使用することにより、短絡防止用防護具を不要にできるとともに切断した高圧引下線上部縁線２ａを高圧引下線中線２ｂまで移動する必要がなくなる。 In the above description, the case where the worker performs work on the bucket of an aerial work vehicle has been described. However, the high-voltage underline upper edge line support tool 10 is also used for work on a pole that the worker climbs on a power pole. By doing so, the protective device for preventing a short circuit can be made unnecessary, and it is not necessary to move the cut high voltage underline upper edge line 2a to the high voltage underline middle line 2b.
１ 高圧配電線
２ａ 高圧引下線上部縁線
２ｂ 高圧引下線中線
３ 上部支持碍子
４ 下部支持碍子
５ 高圧カットアウト
６ 変圧器
１０ 高圧引下線上部縁線支持具
２０ 絶縁棒
２１ 固定つまみ
３０ 高圧配電線把持部
３１ スライド台
３２ スライド把持部材
３３ 固定把持部材
３４ スライド操作部材
３５ 支持部材
３５ａ 固定ピン
３６ 支持部材固定部材
３６ａ 挿入孔
３７ 固定軸部材
３８ 支持部材固定つまみ
３９ 連結軸
４０ 縁線把持部
４１ クリップ
４１ａ 支持軸
４２ クリップ支持部材
４３ 固定軸部材
５０ 保護板
Ｌ 間隔
DESCRIPTION OF SYMBOLS 1 High voltage distribution line 2a High voltage underline upper edge line 2b High voltage underline middle line 3 Upper support insulator 4 Lower support insulator 5 High voltage cutout 6 Transformer 10 High voltage underline upper edge line support 20 Insulating rod 21 Fixed knob 30 High-voltage distribution line gripping part 31 Slide table 32 Slide gripping member 33 Fixed gripping member 34 Slide operation member 35 Support member 35a Fixing pin 36 Support member fixing member 36a Insertion hole 37 Fixed shaft member 38 Support member fixing knob 39 Connection shaft 40 Edge line gripping Portion 41 Clip 41a Support shaft 42 Clip support member 43 Fixed shaft member 50 Protection plate L Interval
Claims (4)
絶縁棒（２０）と、
該絶縁棒の一方の端部に取り付けられた、かつ、前記高圧配電線を把持するための高圧配電線把持手段（３０）と、
該絶縁棒の他方の端部に取り付けられた、かつ、前記高圧引下線上部縁線を把持するための高圧引下線上部縁線把持手段（４０）と、
を具備することを特徴とする、高圧引下線上部縁線支持具。 High voltage used for cutting and connecting the upper edge line (2a) of the high voltage underline from the high voltage distribution line (1) to the upper support insulator (3) of the high voltage underline from the transformer (6) by the indirect hot wire method An underline upper edge support (10),
An insulating rod (20);
High-voltage distribution line gripping means (30) attached to one end of the insulating rod and for gripping the high-voltage distribution line;
A high pressure underline upper edge line gripping means (40) attached to the other end of the insulating rod and for gripping the high pressure underline upper edge line;
A high-pressure underline upper edge line support, comprising:
スライド台（３１）と、
該スライド台に固定された固定把持部材（３３）と、
ホットスティックを用いて操作可能なスライド操作部材（３４）と、
該スライド操作部材が前記ホットスティックを用いて操作されると、前記固定把持部材に向ってスライドされて前記高圧配電線を該固定把持部材とで挟んで把持するスライド把持部材（３２）と、
を備えることを特徴とする、請求項１乃至３いずれかに記載の高圧引下線上部縁線支持具。 The high-voltage distribution line gripping means is
A slide base (31);
A fixed gripping member (33) fixed to the slide base;
A slide operation member (34) operable with a hot stick;
When the slide operation member is operated using the hot stick, a slide gripping member (32) that slides toward the fixed gripping member and grips the high-voltage distribution line with the fixed gripping member;
The high-voltage underline upper edge line support tool according to any one of claims 1 to 3, further comprising:
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| JP2009154050A JP5455465B2 (en) | 2009-06-29 | 2009-06-29 | High pressure underline upper edge line support |
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| JP2009154050A JP5455465B2 (en) | 2009-06-29 | 2009-06-29 | High pressure underline upper edge line support |
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| JP5455465B2 JP5455465B2 (en) | 2014-03-26 |
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| JP2009154050A Expired - Fee Related JP5455465B2 (en) | 2009-06-29 | 2009-06-29 | High pressure underline upper edge line support |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806543A (en) * | 2012-07-16 | 2012-12-05 | 山西省电力公司太原供电分公司 | Live working manipulator for replacing insulator string |
| JP2014113010A (en) * | 2012-12-05 | 2014-06-19 | Chugoku Electric Power Co Inc:The | Connecting and holding tool |
| KR101850531B1 (en) * | 2016-08-01 | 2018-05-30 | 주식회사 조광전기 | By-pass cable terminal apparatus |
| CN108899794A (en) * | 2018-09-06 | 2018-11-27 | 广东电网有限责任公司 | A kind of insulating bar gyrator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102211211B1 (en) * | 2018-06-29 | 2021-02-02 | 조덕승 | Bypass cable link clamp for hot-line job |
| KR102571927B1 (en) * | 2019-08-06 | 2023-08-30 | 한국전력공사 | Fix apparatus for jumper wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6295915A (en) * | 1985-10-21 | 1987-05-02 | 東京電力株式会社 | Attachment of high voltage drop wire to insulator |
| JP2000261922A (en) * | 1999-03-10 | 2000-09-22 | Chugoku Electric Power Co Inc:The | Hot-line remote working apparatus |
| JP2002034112A (en) * | 2000-07-14 | 2002-01-31 | Hokuriku Electric Power Co Inc:The | Rotary bracket |
-
2009
- 2009-06-29 JP JP2009154050A patent/JP5455465B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6295915A (en) * | 1985-10-21 | 1987-05-02 | 東京電力株式会社 | Attachment of high voltage drop wire to insulator |
| JP2000261922A (en) * | 1999-03-10 | 2000-09-22 | Chugoku Electric Power Co Inc:The | Hot-line remote working apparatus |
| JP2002034112A (en) * | 2000-07-14 | 2002-01-31 | Hokuriku Electric Power Co Inc:The | Rotary bracket |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806543A (en) * | 2012-07-16 | 2012-12-05 | 山西省电力公司太原供电分公司 | Live working manipulator for replacing insulator string |
| JP2014113010A (en) * | 2012-12-05 | 2014-06-19 | Chugoku Electric Power Co Inc:The | Connecting and holding tool |
| KR101850531B1 (en) * | 2016-08-01 | 2018-05-30 | 주식회사 조광전기 | By-pass cable terminal apparatus |
| CN108899794A (en) * | 2018-09-06 | 2018-11-27 | 广东电网有限责任公司 | A kind of insulating bar gyrator |
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| Publication number | Publication date |
|---|---|
| JP5455465B2 (en) | 2014-03-26 |
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