FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering to high-voltage overhead power transmissions and method of their erection. High-voltage overhead power transmission line includes mounted on foundation tower supports with traverses, insulators, terminal and trunnion-type clamps nondamaging housing and set of high-temperature composite electric wires fixed in them, each of wires contains a core with at least one composite strand and multi-strand layer. PTL is mounted in erection or operational reconstruction, repair, recovery of the method providing technologic and maintenance nondamaging of electric wires by means of complex developed process equipment and use for laying electric wires line length equal to complete anchor factory length of line or its mounting section, thus excluding additional losses of transmitted electric power in electric wires joints, which number is minimised. To process solutions, providing specified technical result, include mounting with expansion of electric wire through tensioner and provision of technological tension of electric wire tension machine, use of expansion rollers with nondamaging bed, for example, equipped with rubber layer, and exact regulation of minimum radiuses of reels with factory winding of electric wire and reels from condition of nondamaging economical consumption of material and reduced resistance per unit of transmitted electric power.
EFFECT: invention makes it possible to erect high-voltage power transmission lines with improved efficiency.
2 cl, 8 dwg
