About the need to improve reliability of certain sections of intersystem power transmission lines
Abstract: Defining role in the design and operation of support structures of intersystem power transmission lines plays the problem of reliability of structural components under the influence of climatic loads during the entire period of operation. Electrical Installations Code (PUE) establish four classes of reliability depending on the voltage power lines and thus regulate the determination of loads in the calculation of the structural elements of the HV on criteria to ensure trouble-free operation of the mechanical part of the HV under the influence of external factors for the settlement period of operation of the line. However, the massive failures of the first decade of XXI century in power networks of Ukraine have shown a lack of reliability of certain sections of overhead power lines that were built in sixties-seventies last century, with elevated icing and wind impacts. On the example of overhead power transmission lines 330 kV there was substantiated the necessity to improve the reliability of lines’ sections, which provide work between systems. It have been formulated in which cases the experience of operation of electric networks it is allowed to make icing and wind loads on overhead lines at one class higher reliability.
Keywords: overhead power transmission lines (OPTL), reliability, trouble-free operation, icing and wind loads.
Pages: 55-63.
For citation: Nazim, Ya. V.; Kvytsynskyi, A. A. About the need to improve reliability of certain sections of intersystem power transmission lines. – Text : electronic. – In: Metal Constructions. – 2014. – Vol. 20, N 1. – Р. 55-63. – URL: https://donnasa.ru/publish_house/journals/mk/2014-1/05_nazim_kvytsynskyi.pdf (date of access: 24.11.2024). – ISSN 1993-3517.
Vol. 20, N 1 (2014)
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture