Abstract
The article presents a new concept of design of power lines which allowed us to develop new unified power transmission supports, efficient and reliable ones. For the first time, a method of optimum design of overhead power lines has been developed which considered the power line as a united structural system, the relief, the atmospheric and climatic conditions, the environment pollution, the efficiency requirements, the technological and operational expenditures. The article describes the changes introduced into the requirements for the dimensions and parameters of grid metal works with the minimum mass. The optimum design, the computer-aided assembly process and the use of advanced technologies guarantee the reduction of the construction period and the increase in the maintenance period of power lines.
Highlights
The construction of overhead power lines in the Russian Federation, Ukraine, Kazakhstan and Belarus uses traditional unified support structures developed in accordance with the USSR standards [1,2,3,4]
The main reasons for that are following: the international norms for the determination of loads caused by climatic effects became more strict in order to make the overhead power lines more reliable; the consideration of the real work values for space support structures in the power line as a united system as well as that of supporting effects by ropes and cables is necessary [5,6,7]
The potential solution of the aforesaid problem lies in the improvement of power line support structures with absolute conservation of their maintenance characteristics [8,9,10,11]
Summary
The construction of overhead power lines in the Russian Federation, Ukraine, Kazakhstan and Belarus uses traditional unified support structures developed in accordance with the USSR standards [1,2,3,4]. Such support structures cannot compete with foreign ones under modern market conditions. The design of structures for high-voltage power lines includes the consideration of many various parameters and requirements: power line length, voltage, relief, region and electrical dimensions, land plot cost, material of structural elements, unification requirements, producer potentialities, assortment [12,13,14,15,16]. It is expedient to solve the support optimization problem using different rational methods at different stages of the optimization process
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