EMBEDDED BRANCH LINE STRUCTURE OF BRANCH LINE SUPPORTING ELECTRIC POLE, AND LAYING METHOD OF EMBEDDED BRANCH LINE

To provide a branch line structure which prevents an embedded branch line embedded in the ground from being corroded or electrolytically corroded for a long period of time or even broken, and which can be constructed at a low cost by a safe, reliable and easy work by using a hard case-like concrete coating member having a high insulating effect so as to prevent an embedded branch line from directly contacting the soil and causing electric corrosion.SOLUTION: An embedded branch line structure of a branch line supporting an electric pole includes: a stay block 3 having an anchor portion 4; a steel pipe-like embedded branch line rod 7 embedded in the ground of a branch line 1 connected to the stay block 3 and supporting an electric pole; and a cylindrical coating member 10 for coating the embedded branch line rod 7 in the ground. The coating member 10 is formed of a concrete member, has a structure capable of insulating the steel pipe-like embedded branch line rod 7 from electric current in the ground and has a structure capable of not damaging the embedded branch line rod 7 due to external pressure in the ground.SELECTED DRAWING: Figure 1 【課題】埋設支線を土壌に直接接触させることなく、また電蝕をも起こさせない様にすべく、絶縁効果の高いハードケース的なコンクリート製被覆部材を使用することとし、もって前記地中に埋設された埋設支線が長期間腐食あるいは電蝕せず、ひいては破断することもなく、安価なコストで安全確実かつ容易な作業で施工できる支線構造を提供する。【解決手段】アンカー部４を有するステーブロック３と、該ステーブロック３に連結され、電柱を支える支線１のうち、地中に埋設される、鋼鉄製のパイプ状をなす埋設支線ロッド７と、該埋設支線ロッド７を地中内で被覆状態にする筒状の被覆部材１０とを有し、前記被覆部材１０は、コンクリート部材で形成され、前記鋼鉄製のパイプ状をなす埋設支線ロッド７を地中内の電流から絶縁できる構造にしてあると共に、前記埋設支線ロッド７を地中内の外部圧力により破損させない構造の被覆部材１０としてあることを特徴とする。【選択図】図１