JP4277281B2 - Hanging wire type transfer method by net formation - Google Patents
Hanging wire type transfer method by net formation Download PDFInfo
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- JP4277281B2 JP4277281B2 JP2004180309A JP2004180309A JP4277281B2 JP 4277281 B2 JP4277281 B2 JP 4277281B2 JP 2004180309 A JP2004180309 A JP 2004180309A JP 2004180309 A JP2004180309 A JP 2004180309A JP 4277281 B2 JP4277281 B2 JP 4277281B2
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Description
本発明は、既設鉄塔間に張設された電線（架空地線および電力線）を既設鉄塔の側方に位置する新設あるいは仮設鉄塔に移線する電線の移設および張替えに係わる工法であり、特に移線時に発生する電線の弛度変動を抑制する移設工法に関する。 The present invention relates to a method for transferring and replacing an electric wire (an overhead ground wire and a power line) stretched between existing steel towers to a new or temporary steel tower located on the side of the existing steel tower. The present invention relates to a relocation method that suppresses fluctuations in the sag of an electric wire that occurs during wiring.
従来の移線工法に関する公知技術としては、一般的に、移線元鉄塔において両径間に張架されている電線を塔体に引留めて切断した後、割線を接続した移設用電線の先端部にカマロングを取付けて電線を掴持し、そのカマロングに２組のセミ金車を接続して移線元と移線先鉄塔より繰り出された取込みワイヤロ−プを接続し、図１０に示すように、双方のワイヤの「やりとり」により電線を空中移送する工法が行われている。 As a known technique related to the conventional transfer method, generally, the tip of the transfer wire to which the dividing line is connected after the wire stretched between both diameters in the transfer source steel tower is retained in the tower body and cut. As shown in FIG. 10, a Kamalong is attached to the part and the electric wire is gripped, and two sets of semi-gold wheels are connected to the Kamalong and the transfer wire rope drawn from the transfer source and transfer destination tower is connected. In addition, there is a construction method in which an electric wire is transferred in the air by “exchange” of both wires.
また、図１１に示すように、移線元と移線先鉄塔間に親ワイヤを張設し、そのワイヤに移動可能な２輪滑車を掛け、その滑車に電線を懸架する架線用金車を吊設した移線装置の２輪滑車を移線先に移動させて電線を移送するもので最初、塔体の上部に取付けたワイヤを順次、下部に移し替えることで上線〜下線を移線する「スライド移線工法」がある。 In addition, as shown in FIG. 11, a main wire is stretched between the transfer source tower and the transfer destination steel tower, a movable two-wheel pulley is hung on the wire, and the overhead wire gold wheel that suspends the electric wire on the pulley is provided. Move the two-wheel pulley of the suspended transfer device to the transfer destination and transfer the electric wire. First, the wires attached to the upper part of the tower are transferred to the lower part in order, and the upper line to the lower line are transferred. There is a “slide transfer method”.
そのほか、図１２に示すように、移線元と移線先鉄塔の塔頂部間に張設した主索に搬機を掛け、これに架線用金車を吊設した運搬装置により移送中の電線の垂れ下がりを調整しながら移線する工法で、主索を移し替えすることなく上線〜下線を移線するとことのほか、吊設した運搬装置によって工事用資機材（ア−ム材、架線用資材、工具等）の荷揚げ荷下げ作業を並行して行うことができる「電線の移線工法」が開示されている。
しかし、図１０の一般工法は、割線を挿入した一連の電線の垂れ下りを防ぐために移線元と移線先鉄塔から繰り出す２本のワイヤロ−プの「やりとり」に微妙な操作技能が必要で、熟練者でなければ移線作業の安全遂行が難しいことから線下保安対策として、防護足場やネットを設置するほか監視員を多く配置する必要があるなど作業性に問題があった。 However, the general construction method shown in FIG. 10 requires a delicate operation skill in the “exchange” of the two wire ropes drawn out from the transfer source and transfer destination towers in order to prevent the series of wires inserted with the dividing line from drooping. Since it is difficult to perform the transfer work safely unless it is a skilled person, there are problems in workability such as installation of protective scaffolding and nets as well as the installation of a large number of observers as security measures for the line.
また、図１１の移線装置による「スライド移線工法」も、架線用金車に懸架した移送中の電線を上下（垂直方向）に変位させることができない装置のため電線の実長増や支持点高低差が大きい場合に発生する電線の垂れ込みの増加現象を抑制することが難かしいため、移線元と移線先鉄塔から繰り出す補助ワイヤロ−プにより垂れ込みを抑制する作業を行うとともに垂れ込む電線の線下横過工作物との接近、接触を回避する方策として線下に保護網や足場を設置するなど保安対策が必要なことから、その作業の安全性に問題があった。 In addition, the “slide transfer method” using the transfer device of FIG. 11 is also a device that cannot displace the wire being transferred suspended on the overhead wire wheel vertically (in the vertical direction), so that the actual length of the wire is increased and supported. Since it is difficult to suppress the increase phenomenon of wire sag that occurs when the point height difference is large, the sag is controlled while the auxiliary wire rope fed from the transfer source and transfer destination towers is used to suppress sag. As measures to avoid the approach and contact with the overlying workpiece under the line of the cable to be inserted, safety measures such as the installation of a protective net or a scaffold under the line were necessary, and there was a problem in the safety of the work.
また、図１２の搬機による「電線の移線工法」においては、搬機（キャリア）を使用して移線中の電線の弛度の変動（上下に変位）を抑制することで、従来の補助ワイヤによる「やりとり」操作や、線下保安対策（保護網、足場等の構築）問題を解消したが、移送中の電線の変位状況の監視、連絡とウインチによる運転操作との連携作業を的確に実施することが要求されるほか、２径間に繋がる一連の長い電線の中間部を架線金車によって懸架（一点支持）した状態で移設電線を上下に変位させながら移送するので、万一、移送中に横風が発生した場合、電線の横揺れのほか移線する両径間の弛度の不揃い（長径間側に電線が流れて垂れ込む状態）が予想され、その電線が線下横過工作物に接近する虞があることなど万全な移線工法とは言えない。 In addition, in the “wire transfer method” using the carrier shown in FIG. 12, by using a carrier (carrier) to suppress the fluctuation (displacement in the vertical direction) of the sag of the wire during the transfer, Although the problem of "exchange" operation with auxiliary wires and underline security measures (construction of protection nets, scaffolding, etc.) has been solved, the displacement status of the wires being transferred is monitored, and the linkage work between the operation and operation with the winch is accurately performed. In addition, the transfer wire is moved while being displaced up and down in the state where the middle part of a series of long wires connected between the two diameters is suspended (supported at one point) by an overhead wire metal wheel. If a crosswind occurs during the transfer, it is expected that the swaying of the wires will be uneven and the sag of the diameters of the transferred wires will be uneven (the wires will flow and hang down between the long diameters). Although it is a perfect transfer method such as the possibility of approaching the workpiece There.
本発明が解決しようとする課題は、従来の移線工法における移設中の電線の垂れ込みに関する対応策を究明して、これを抜本的に解消することであり、線下に保安用の防護施設を設けることなく、また、万一、移線作業中に強風が発生したりワイヤの破損あるいは操作ミスなど不測の事態が起きた場合でも懸吊された電線が横振れしたり摺動したり脱落したりすることなく、安全、確実に移線することができる工法を確立するものである。 The problem to be solved by the present invention is to investigate the countermeasures related to the sag of the wire during the transfer in the conventional transfer method, and to solve this drastically, and to protect the safety facility under the line In addition, in the unlikely event that a strong wind is generated during the transfer work, or if an unexpected situation such as a broken wire or an operational error occurs, the suspended wire will sway, slide or drop. This is to establish a construction method that can be transferred safely and surely without having to do so.
上記の課題を解決するための手段として、（１）電線を懸吊するロ−プは、軽量で強靱なケブラ−を使う。（２）移線元鉄塔で電線を切り離して仮留め後、等間隔に吊設した吊金車に電線を懸吊（支持）して移説する。（３）既設鉄塔から移線元と移線先鉄塔の両径間に電線を支持する母線（支持ロ−プと連結ロ−プと吊金車）を張設する。（４）両母線の支持ロ−プに連結ロ−プにより吊設した吊金車間を連結する橋架ロ−プを横設する。（５）両母線の吊金車と電線を懸吊する吊金車とを橋架ロ−プにより連係する吊金ネットを形設する。（６）両支持母線を緊張し、等間隔に吊設の吊金車に懸架した電線の水平張力を緩和する。（７）電線を掴持する金具に移線元と移線先鉄塔から繰り出すワイヤを繋ぎ、電線を橋架ロ−プに沿って水平移動させて移線先鉄塔側に引寄せる。（８）移線先鉄塔側において電線実長の増分（割線）を接続することなどを主要な技法とする。 As means for solving the above problems, (1) a rope for suspending an electric wire uses a light and strong kevlar. (2) After the electric wire is cut off at the main transfer tower and temporarily fixed, the electric wire is hung (supported) on a hanging wheel hung at equal intervals and transferred. (3) A bus bar (support rope, connecting rope, and suspension wheel) for supporting the electric wire is stretched between the diameters of the transfer tower and the transfer destination tower from the existing tower. (4) A bridge rope for connecting the suspension wheels suspended by the connection rope to the support ropes of both bus bars is installed horizontally. (5) A suspension net for linking a suspension wheel of both buses and a suspension wheel for suspending electric wires by a bridge rope is formed. (6) Tension the both supporting bus bars to relieve the horizontal tension of the electric wires suspended on the hanging wheel suspended at equal intervals. (7) Connect the wire fed from the transfer source tower and the transfer destination tower to the metal fitting for holding the electric wire, move the electric wire horizontally along the bridge rope, and draw it toward the transfer destination tower side. (8) The main technique is to connect the increment (secant) of the actual wire length on the transfer tower side.
本発明の工法は、移線前に割線の挿入を行わず、移線先において所要長の電線を接続するため、移設にともなう電線実長の増加によって発生する弛度増加現象が抑制される。 Since the construction method of the present invention does not insert the dividing line before the transfer, and connects the required length of the electric wire at the transfer destination, the phenomenon of increasing the sag caused by the increase in the actual length of the electric wire accompanying the transfer is suppressed.
両径間の支持母線に吊設の吊金車と電線を懸吊する吊金車とを多数、等間隔に配設して橋架ロ−プを連係することにより電線の支持径間が等分布化（短径間）され、電線の水平張力が緩和されるとともに各吊金車間の電線の垂れ下がりが抑制（小弛度化）される。 A large number of suspension wheels suspended from the support bus between the two diameters and a suspension wheel for suspending the wires are arranged at equal intervals and the bridge ropes are linked so that the support distance of the wires is evenly distributed. (Between the short diameters), the horizontal tension of the electric wires is relaxed, and the drooping of the electric wires between the suspension wheels is suppressed (small sag).
両径間に張設し、形設するネットが軽量、強靱なケブラ−ロ−プの支持母線（４条）と横設する橋架ロ−プ（１条）よりなるため、径間の負荷荷重が小さく、二重防護的役割を持つので万一、電線移送中にロ−プの破損や横風や操作ミスなど不具合が発生しても、電線の横振れ、垂れ込み、滑脱等の不測の事態が発生しないので安全性に富んでいる。 Because the net to be stretched between both diameters consists of a lightweight, tough Kevlar rope support bus (4) and a horizontal bridge rope (1), the load load between the spans Is small and has a dual protective role. Even if a problem such as a broken rope or a crosswind or an operation error occurs during the transfer of the wire, an unforeseen situation such as a sideways swing, drooping or slipping of the wire may occur. Because it does not occur, it is rich in safety.
この事から、移設径間の線下の横過工作物との接近、接触を防止するための保護足場や防護ネットといった仮設備を構設する必要がないので地域環境対応費が低減する。 This eliminates the need for constructing temporary facilities such as protective scaffolds and protective nets to prevent contact and contact with laterally overworked workpieces below the line between the relocation spans, thereby reducing local environmental costs.
吊金ネットを形設するために使用する材料、工具類は全て現有する在来品で、本工法用に特別の資材、工具を製作、使用する必要がないので経済的であり環境対応費を含めた総工事費の大幅な低減に寄与することなど多くの利点と効果を奏する。 The materials and tools used to form the suspension net are all conventional products, and it is economical and environmentally friendly because there is no need to make and use special materials and tools for this method. It has many advantages and effects, such as contributing to a significant reduction in total construction costs.
以下、本発明の実施の形態を図面を参照して説明する。図２〜５は、架空送電線におけ径間電線の移線工法の技法と手順の概要を示すもので、移線に当たっては、移設区間の両端鉄塔での架設電線の流し留めおよび移設元鉄塔での電線の切離して仮留めした後、 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 2 to 5 show the outline of the technique and procedure of the transfer method of span cable in the overhead power transmission line. When transferring, the suspension of the installed cable at both ends of the transfer section and the transfer main tower After disconnecting and temporarily securing the wire at
図５（ａ）のように移線元鉄塔２側で、既設鉄塔１側の径間の電線３に自走機をセットし、これに曳行ロ−プ７を繋ぎ、所要数の吊金車１０（図６）を牽引して当該径間に吊金車１０を等間隔で吊設する。As shown in Fig. 5 (a), on the main transfer tower 2 side, a self-propelled machine is set on the
図５（ｂ）のように曳行ロ−プ７の末端の吊金車１０に連結ロ−プ４と支持ロ−プ５を繁ぎ、これに所要数の平行金車８（図９の環状金車９を２個平行連結した８字形の２輪金車で、一方の環状金車９に連結ロ−プ４を装着して電線３に懸吊し、他方の環状金車９に支持ロ−プ５を通す）を径間に等間隔で吊設する。As shown in FIG. 5 (b), the connecting rope 4 and the support rope 5 are laid on the
図５（ｃ）のように径間に吊設された終端の平行金車８に繋がれた連結ロ−プ４と支持ロ−プ５を移線先鉄塔２０側に移設し、支持ロ−プ５を移線先鉄塔２０側で張設、固定するするとともに移線元２鉄塔側で終端の平行金車８に曳行ロ−プ７を繁ぎ、これに所要数の吊金車１０を装着して電線３に吊設する。Figure 5 connected tethered parallel gold wheel 8 of terminations suspended in span as (c) B - flop 4 and the support B - relocated the flop 5 to Utsurisen
図５（ｄ）のように既設鉄塔１側で径間に吊設した平行金車８に繁いだ連結ロ−プ４と支持ロ−プ５を引寄せて同金車８を回収しながら移線先鉄塔２０側より支持ロ−プ５を介して連結ロ−プ４に装着の環状金車９を径間に配設するとともに移線元鉄塔２側より電線３を介して曳行ロ−プ７に装着の所要数の吊金車１０を等間隔で径間に吊設する。As shown in FIG. 5 (d), while pulling together the connecting rope 4 and the supporting rope 5 that are common to the parallel metal wheel 8 suspended between the spans on the existing
図５（ｅ）のように既設鉄塔１側で曳行ロ−プ７を引寄せて吊金車１０を回収しながら移線元鉄塔２側で終端の吊金車１０に連結ロ−プ４と支持ロ−プ５を繁ぎ、これに装着の平行金車８を電線３に吊設して径間に同金車８を所要数、等間隔で配設するとともに支持ロ−プ５を既設鉄塔１で緊張する。As shown in FIG. 5 (e), while the coasting rope 7 is drawn on the existing
図５（ｆ）既設鉄塔１側で平行金車８を回収するとともに終端の同金車８に連結ロ−プ４をと支持ロ−プ５を繁ぎ、これに所要数の環状金車９を等間隔に装着して径間に配設した後、支持ロ−プ５を既設鉄塔１と移線先鉄塔２０にて緊張、固定する。FIG. 5 (f) collects the parallel metal wheel 8 on the existing
図５（ｇ）のように既設鉄塔１と移線元鉄塔２および移線先鉄塔２０の両径間間に張設された支持ロ−プ５を介して、それぞれ連結ロ−プ４に装着された環状金車９を所要数、等間隔で両径間に吊、配設し、支持ロ−プ５と連結ロ−プ４と環状金車９よりなる支持母線５５をＶ字状に張設する。As shown in FIG. 5 (g), each is attached to the connecting rope 4 via the support rope 5 stretched between both diameters of the existing
図５（ｈ）と図３のように既設鉄塔１側で両径間に張設された支持母線５５の連結ロ−プ４に装着の環状金車９間を繋ぐとともに電線３に吊設した直角金車８８（図８の環状金車９２個を直角に連結した８字形の２輪金車）を通して支持母線５５間を連結する橋架ロ−プ６を等間隔で横設するため、移線元２と移線先鉄塔２０側で連結ロ−プ４を交互に引寄せる。As shown in FIG. 5 (h) and FIG. 3, the annular metal wheel 9 attached to the connecting rope 4 of the
図５（ｉ）のように移線元鉄塔２と移線先鉄塔２０側で連結ロ−プ４を交互に引寄せながら橋架ロ−プ６を所要数、等間隔で両径間の支持母線５５を跨ぐ状態で架設した後、連結ロ−プ４を両径間の鉄塔で固定し、電線３を直角金車８８によって懸吊、支持するケブラ−ロ−プ５が４本よりなる吊金用ロ−プネットを形設する。As shown in FIG. 5 (i), the supporting buses between the two diameters of the bridge ropes 6 at the required number and at equal intervals while pulling the connecting ropes 4 alternately on the transfer steel tower 2 and the
図４と図５（ｊ）のように移線元鉄塔２側で移設する電線３の先端部をカマロングまたはクランプによって掴持するとともに移線用２輪金車１１により電線３を懸架し、移線元鉄塔２と移線先鉄塔２０より繰り出すワイヤ７７の相互操作「やりとり」により電線３を橋架ロ−プ６を介して水平移行する。As shown in FIG. 4 and FIG. 5 (j), the tip of the
複導体送電線での移線工法については、前記（実施例１）の［００１６］と［００１７］に記載の図５（ａ）（ｂ）で実施する吊金車１０および平行金車８の吊設作業と同じ作業を２導体からなる電線３について行えば、図５の単導体の場合に行われる移線元鉄塔２から吊金車１０を繰り出して吊設する作業（ｄ）と吊設した吊金車１０に平行金車８を繰り出して径間に吊設する作業（ｅ）が省略され、図５の（ｃ）に引続き（ｆ）の支持ロ−プ５と連結ロ−プ４に装着の環状金車９を径間に配設すれば（ｇ）と同じ形態となるので、それ以降の手順に関する記述を省略する。About the transfer method in a multi-conductor power transmission line, the
１ 既設鉄塔 １０ 吊金車（単輪） １１ 移線用２輪金車
２ 移線元鉄塔 ２０ 移線先鉄塔（新設又は仮設）
３ 電線
４ 連結ロ−プ（ケブラ−）
５ 支持ロ−プ（ケブラ−） ５５ 支持母線（ケブラ−、２条）
６ 橋架ロ−プ（ケブラ−）
７ 曳行ロ−プ（ケブラ−） ７７ ワイヤ（操作索）
８ 平行金車（８字形、２輪） ８８ 直角金車（８字形、２輪）
９ 環状金車1 existing
3 Electric wire 4 Connection loop (Kevlar)
5 Support Loop (Kevlar) 55 Support Bus (Kevlar, Article 2)
6 Bridge rope (Kevlar)
7 coasting rope (Kevlar) 77 wire (operating cord)
8 Parallel gold wheel (8-shaped, 2-wheel) 88 Right-angle gold wheel (8-shaped, 2-wheel)
9 Ring metal wheel
Claims (2)
（ａ）移線元鉄塔側で径間の電線に自走機をセットし、これに曳行ロ−プを繋ぎ、所要数の吊金車を牽引して径間に吊金車を等間隔で吊設すること
（ｂ）吊設された終端の吊金車に軽量かつ強靱なケブラ−よりなる連結ロ−プと支持ロ−プを繁ぎ、これに所要数の平行８字形金車（環状金車２個を平行に連結した平行８字形金車の一方の環状金車に連結ロ−プを装着して電線に懸吊し、他方の環状金車に支持ロ−プを通した金車で、以下、平行金車という）を径間に等間隔で吊設すること
（ｃ）吊設された終端の平行金車に繁がれた連結ロ−プと支持ロ−プを移線先鉄塔に移設し、支持ロ−プを移線先鉄塔側で緊張、固定するとともに移線元鉄塔側で終端の平行金車に曳行ロ−プを繁ぎ、これに所要敷の吊金車を装着して電線に吊設すること
（ｄ）既設鉄塔側で吊設された平行金車の連結ロ−プと支持ロ−プを引寄せて同金車を回収しながら移線先鉄塔より支持ロ−プを介して連結ロ−プに装着の環状金車を径間に配設するとともに移線元鉄塔より電線に吊金車を所要数、等間隔で吊設すること
（ｅ）既設鉄塔側で曳行ロ−プを引寄せて吊金車を回収しながら移線元鉄塔で終端の吊金車に連結ロ−プと支持ロ−プを繁ぎ、これに装着の平行金車を電線に吊設して径間に同金車を所要数、等間隔で配設するとともに支持ロ−プを既設鉄塔で緊張すること
（ｆ）既設鉄塔側で平行金車を回収するとともに移線元鉄塔側で終端の同金車に連結ロ−プと支持ロ−プを繁ぎ、これに所要数の環状金車を等間隔に装着して径間に配設するとと もに移線元鉄塔側より繰り出す支持ロ−プと連結ロ−プを移線先鉄塔へ移した後、支持ロ−プを既設鉄塔側と移線先鉄塔側で固定して緊張すること
（ｇ）既設鉄塔と移線元鉄塔との径間に張設された支持ロ−プを介して、その連結ロ−プに装着された環状金車を所要数、等間隔で両径間に吊、配設し、既設鉄塔と移設元および移設先鉄塔との両径間に張設された支持ロ−プと連結ロ−プと環状金車よりなる支持母線をＶ字状に張設すること
（ｈ）既設鉄塔側で両径間に張設された支持母線の連結ロ−プに装着の環状金車間を繁ぐとともに電線を懸吊する直角８字形金車と環状金車とをケブラ−製の橋架ロ−プで繁ぐ金車を通して支持母線間を跨ぐ状態で連結する橋架ロ−プ（ケブラ−）を等間隔に横設するため、移線元と移線先鉄塔側で連結ロ−プを交互に引寄せること
（ｉ）移線元と移線先鉄塔側で連結ロ−プを交互に引き寄せながら橋架ロ−プを所要数、等間隔で両径間の支持母線（支持ロ−プと連結ロ−プ）に架設した後、これを両径間の鉄塔で固定し、電線を懸吊、支持す直角８字形金車に装着して両支持母線間を繋ぐ橋架ロ−プと４本（支持ロ−プ２本、連結ロ−プ２本）のケブラ−ロ−プよりなる吊金ネットを形設すること
（ｊ）移線元鉄塔側で移設する電線の先端部をカマロングまたはクランプによって掴持するとともに移線用２輪金車により電線を懸架し、移設元と移線先鉄塔より繰出すワイヤの「やりとり」（ウインチ）により電線を橋架ロ−プを介して水平移設すること
（ｋ）電線の移線先鉄塔への移設が完了した後、両支持母線の連結ロ−プを既設鉄塔側に引戻して直角金車と橋架ロ−プを電線より取外して移設（単線）を完了すること
（ｌ）電線の張替えを行う場合は、移設が完了した後、吊金ネットに古い電線が懸吊された状態で、新しい電線を繁いで引抜き交換することなどを特徴とするネット形設による吊金式移線工法。 In the construction method in which electric wires ( aerial ground wire and power line ) installed between steel tower diameters of existing transmission lines are moved to new or temporary steel towers located on the side of existing steel towers, After carrying out preparatory work such as disconnecting and temporarily fixing the wires at the main transfer tower, (a) the self-propelled machine is set on the cross-over electric wires at the main transfer tower side. the towed b - connect the flop, lightweight and tough to Tsukin car required number of be set suspended at equal intervals Tsukin vehicles span leading the Tsukin vehicle (b) suspended terminations Kevlar - become more consolidated Russia - a flop support Russia - a flop Shigerugi, required number of parallel 8-shaped gold vehicle (one annular metal car parallel 8-shaped gold wheel coupled in parallel two annular metal car thereto consolidated b - was suspended in wires wearing the flop, supporting the other annular metal cars Russia - gold car that through the flop, hereinafter referred to as parallel gold vehicle) to span (C) The connection rope and the support rope laid in the suspended parallel metal wheel are moved to the transfer destination tower, and the support rope is transferred to the transfer destination tower. Tension and fixing at the side, and the coasting rope on the end of the transfer steel tower side, lay a coasting rope on the end, attach a suspension car with the required floor to hang it on the wire (d) Existing steel tower Annular attached to the connecting rope from the transfer destination tower via the supporting rope while pulling the connecting rope and the supporting rope of the parallel gold car suspended on the side and collecting the gold wheel (E) Pull the coasting rope on the existing steel tower side and pull the suspension car on the existing steel tower side. While collecting, hang a connection rope and a support rope on the end suspension car at the transfer main tower, hang a parallel metal wheel attached to this to the electric wire, and the required number of the same metal wheel between the spans When arranged at regular intervals Supported also Russia - linked to the gold cars terminates in Utsurisen original tower side with the recovery of parallel gold car by tensioned up with existing towers (f) existing tower side B - flop with the support B - a flop Shigeru technique, this support b was mounted at equal intervals required number of annular metal wheel feeding than provided result preparative monitor Utsurisen original tower side span - transferred to Utsurisen destination tower the flop - connecting the profiles After that, the supporting rope is fixed and tensioned on the existing tower side and the transfer destination steel tower side (g) through the support rope stretched between the existing tower and the transfer original tower, The support wheel is mounted between the existing steel tower, the transfer source and the transfer destination steel tower, with the required number of annular gold wheels mounted on the connecting ropes hung between both diameters at equal intervals. -A supporting bus consisting of a loop, a connecting loop and an annular metal wheel is stretched in a V shape. (H) Annular attached to a connecting loop of a supporting bus that is stretched between both diameters on the existing tower side. Between gold wheels A bridge rope (Kevlar) that connects a right angle 8-shaped metal wheel that suspends wires and an annular metal wheel in a state of straddling the supporting bus line through a gold wheel that grows with a bridge cable made of Kevlar. ) Are placed at equal intervals, the connecting ropes are alternately drawn at the transfer source and the transfer destination tower side. (I) The connection ropes are alternately supplied at the transfer source and the transfer destination tower side. bridges while attracted b - number of required the flop, equidistant both span the support bus (supporting b - flop and coupling b - flop) was spanned, which was fixed at the both span towers, suspension wires A suspension rope consisting of a bridge loop and four (two support loops, two connection loops ) Kevlar loops that are attached to a supporting right-angled 8-shaped wheel and connected between both support buses. Forming the net (j) Holding the tip of the wire to be transferred on the transfer line main tower side with a kamalong or clamp and using a 2-wheel metal wheel for transfer The wire is moved horizontally through the bridge rope by “exchange” (winch) of the wire drawn from the transfer source and transfer destination tower (k) The transfer of the electric wire to the transfer destination tower is completed After that, pull the connecting rope of both supporting buses back to the existing tower, remove the right angle wheel and the bridge rope from the electric wire, and complete the relocation (single wire). (L) When changing the electric wire, After the relocation is completed, a wire-type transfer method using a net configuration, in which a new wire is pulled out and replaced while the old wire is suspended from a wire net.
（ａ）移線元鉄塔側て径間の内側の電線と外側の電線に自走機をセットし、これに２本の曳行ロ−プを繋ぎ、所要数の吊金車を牽引して電線２条に吊金車を等間隔で吊設すること
（ｂ）電線に吊設されたそれぞれの吊金車にケブラ−の連結ロ−プと支持ロ−プを繁ぎ、これに装着した所要数の平行金車を径間に等間隔で吊設すること
（ｃ）内外の電線に吊設された終端の平行金車に繁がれた２本の連結ロ−プと２本の支持ロ−プのうち外側の電線に吊設された平行金車に繋がれた連結ロ−プと支持ロ−プを移線先鉄塔側に移設し、支持ロ−プを移線先と既設鉄塔側で緊張、固定するとともに連結ロ−プの端末に別途、連結ロ−プを繋いで、これに装着した所要数の環状金車を支持ロ−プを介して径間に等間隔で配設するとこと
（ｄ）内側の電線に吊設された終端の平行金車に繁がれた連結ロ−プと支持ロ−プのうち支持ロ−プを移線元と既設鉄塔側で緊張、固定するとともに連結ロ−プの末端に連結ロ−プを繁いでこれに装着した所要数の環状金車を支持ロ−プを介して径間に等間隔で配設すること
（ｅ）既設鉄塔側で移線元と移線先鉄塔との両径間に架設された連結ロ−プを引き寄せ、両径間に緊張、固定された２本の支持ロ−プを介して支持ロ−プに吊設された所要数の環状金車を両径間に配設してＶ字状の支持母線を張設すること
（ｆ）移線元と移線先鉄塔側で両径間に吊設した環状金車に装着の連結ロ−プを交互に引き寄せながら既設鉄塔側で両径間に張設された支持母線の連結ロ−プに装着の環状金車間を繋ぐとともに外側の電線に懸吊した直角金車を通して支持母線間を跨ぐ状態で連結する橋架ロ−プを所要数、等間隔に横設すること
（ｇ）移線元と移線先鉄塔側で連結ロ−プを交互に引き寄せながら橋架ロ−プを所要数、等間隔で両径間の支持母線間に架設した後、連結ロ−プを両径間の鉄塔で固定し、電線を金車により懸吊、支持するケブラ−ロ−プが４本よりなる吊金ネットを形設すること（ｈ）移線元鉄塔側で外側の電線の先端部をカマロングまたはクランプによって掴持するとともに移線用２輪金車によって電線を懸架し、移線元と移線先鉄塔側より繰出すワイヤの「やりとり」により電線を橋架ロ−プを介して水平移設すること
（ｉ）外側の電線の移線先鉄塔への移設が完了した後、両支持母線の連結ロ−プを交互に既設鉄塔側に引戻して直角金車と橋架ロ−プを電線より取外し、直角金車と橋架ロ−プを内側の電線に掛け変えた後、移設元と移設先鉄塔で連結ロ−プを交互に引寄せた後、前記（ｆ）〜（ｈ）に準じた技法、手順により内側の電線を移線して複導体の移線を完了する
（ｊ）電線の張替えを行う場合は、それぞれの移設が完了した後、古い電線が吊金ネットに懸吊された状態で、新しい電線を繁いで引抜き交換することなどを特徴とするネット形設による吊金式移線工法。 In the method of moving the electric wire (double conductor) installed between the steel tower diameters of the existing power transmission line to a new or temporary steel tower located on the side of the existing steel tower, the removal of the spacers and the relocation section After carrying out preparatory work such as flow-clamping of the electric wires at both ends of the steel tower and disconnection of the electric wires at the transfer main tower and temporary fixing, (a) the distance between the transfer main tower and the span set the self-propelled machine to the inside of the wire and the outer side of the electric wire, to which two towed Russia - connect the flop, hanging at regular intervals Tsukin car 2 Article wires leading the required number Tsukin car (B) Spread the Kevlar connection rope and the support rope on each suspension car suspended from the electric wire, and equip the required number of parallel metal wheels mounted on it with equal spacing. in suspended to it (c) two connecting Russia Shigeru parallel gold car suspended terminations into and out of the wire was - flop with two supporting Russia - outside of the wire of the flop Suspended been tethered parallel gold wheel coupling Russia - flop with the support B - relocated the flop Utsurisen destination tower side, supporting Russia - tense up in Utsurisen destination and the existing tower side, connected with fixed B -Separately connecting a connecting rope to the end of the loop, and arranging the required number of annular gold wheels mounted on it at equal intervals between the diameters via the support loop (d) Of the connecting rope and supporting rope hanged in the suspended parallel metal wheel, the supporting rope is tensioned and fixed at the transfer source and the existing steel tower, and at the end of the connecting rope. Arrange the required number of annular metal wheels mounted on the connecting ropes at regular intervals through the supporting ropes. (E) Transfer line source and transfer destination steel towers on the existing tower side The required number of ring-shaped metal wheels suspended from the support rope via two support ropes that are tensioned and fixed between the two diameters. The A V-shaped supporting bus is installed between the spans. (F) The connecting ropes mounted on the ring-shaped wheel suspended between the two spans on the transfer source and transfer destination towers are alternated. While connecting to the supporting busbars that are stretched between the two diameters on the existing tower side, the annular metal wheels attached to the connecting rope are connected to each other, and the supporting busbars are connected through a right angle gold wheel suspended from the outer wire. (G) While pulling the connecting ropes alternately at the transfer source and transfer destination towers, both bridge loops are required at equal intervals. After laying between the support buses between the spans, the connecting rope is fixed with a steel tower between the two spans, the electric wire is suspended by a gold wheel, and the suspension net consisting of four Kevlar loops is formed. (H) At the transfer main tower side, grip the tip of the outer wire with a kamalong or clamp and Suspend the wire and move the wire horizontally through the bridge loop by “exchange” of the wire drawn from the transfer source and transfer destination tower side. (I) To the transfer destination tower of the outer wire After the relocation is completed, the connecting ropes of both support buses are alternately pulled back to the existing tower, and the right angle wheel and bridge rope are removed from the wires. After the change, after pulling the connection rope alternately between the transfer source and the transfer destination tower, the inner wire is transferred by the technique and procedure according to the above (f) to (h), and the double conductor Completing the transfer (j) In case of changing the wire, after each transfer is completed, the old wire is hung on the wire net, and the new wire is pulled out and replaced. Hanging wire type transfer method by net formation.
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| JP2004180309A JP4277281B2 (en) | 2004-05-20 | 2004-05-20 | Hanging wire type transfer method by net formation |
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| CN102780178A (en) * | 2012-07-19 | 2012-11-14 | 嘉善县供电局 | Obstacle bridging construction method for power line wiring and wiring pulleys |
| CN109142951A (en) * | 2018-08-08 | 2019-01-04 | 成都保源酷码科技有限公司 | The safety detection method that ground wire mounts during a kind of electric operating |
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