FIELD: electricity.
SUBSTANCE: group of inventions relates to electrical engineering, particularly to overhead high-voltage lines and power transmission networks of type high VVL 110-220, ultrahigh voltage class VVL 220-330; 330-750 and ultra-high voltage class above 750 kV and methods of their erection, operation and transportation of power. High-voltage overhead line of a high-voltage power network includes mounted on foundations tower supports with traverses, insulators, tension and trunnion-type clamps which do not damage cover and a set of high-temperature composite electric wires fixed therein, each of which comprises a core with at least one composite strand, and multi-strand layer. Engineering solutions, providing specified technical result, include mounting with unrolling of electric wire through tensioner and provision of technological tension of electric wire using a tensioner, use of expansion rollers with nondamaging bed, for example, equipped with rubber layer, and exact regulation of minimum radii of reels with factory winding of electric wire and reels of tensioner from condition of nondamaging high-efficient low-consumption material and reduced resistance per unit of transmitted electric power.
EFFECT: according to invention, overhead high-voltage line is mounted during erection or operational repair, reconstruction, recovery based on a method providing technologic and maintenance undamageability of electric wires by means of comprehensive process equipment, and application for laying electric wires line of individual length equal to full anchor factory length of line or its mounting section, which prevents additional losses of transmitted electric power in electric wire joints, number of which is minimised.
2 cl, 8 dwg, 1 ex
