Вестник Северо-Кавказского федерального университета (May 2022)
IN VIEW OF MODERN REQUIREMENTS IN THE DEVELOPMENT OF STEEL LATTICE TOWERS FOR THE LATEST UNIFICATION
Abstract
Currently, unified steel lattice towers, which was developed in 1960-1980th in USSR, are used for the overhead power lines. The standard projects of the lattice towers were qualified to the «Materials for Designing» category in 2005 because they did not comply with modern regulations. As soon as Electrical Installations Code (EIC) were published in its 7th edition in 2003, the use of these towers is not effective nowadays. To apply towers on modern overhead lines (which will comply with existing norms) in the 2016 PJSC «FGC UES» started research «Development of unified steel lattice towers of 220-500 kV and the reinforced concrete raft of supports for overhead lines 220-500 kV for the EIC-7». The principal requirements of the R&D are regulatory requirements, economic requirements, construction requirements, requirements of manufacturing and installation. Development is carried out in the following order: optimization - search for the best solutions; adaptation - the use of existing solutions; compliance with existing scientiic and technical documentation; extension of the application. The economic efficiency of the developed towers is achieved through optimization of tower constructions. The objective function is the lowest total cost of ownership of overhead lines.
