POWER LINE CROSSING OVER OBSTACLE Russian patent published in 1994 - IPC

FIELD: electrical power engineering. SUBSTANCE: power line crossing over obstacle has supports installed on both sides of obstacle with inclination towards crossing. Cross-piece of support of crossing is manufactured in the form of girder to which wires of three phases A, B, C are attached. If necessary crossing can by multilink. To wires A, B, C of crossing line wires A₁,B₁,C₁ of power supply line and wires A₂,B₂,C₂ of going-away line are connected on both sides. Cross-piece is attached to trunk of support with the aid of flexible couplings, for instance, cables. In some individual cases cross-piece can be made fast to trunk of support. Main stays holding up support are attached with first ends to trunk of support at point of anchoring of cross-piece and with second ends to anchors. Crossing is provided with supplementary guys attached with first ends to sides of cross-piece and with second ends to trunk of support. If needed in individual cases second ends of guys can be fastened to anchors. Crossing is fitted with overhead ground-wire cable fixed on tops of supports. EFFECT: enhanced operational reliability. 3 cl, 2 dwg