RELIABILITY OF 35 kV OVERHEAD POWER LINES IN THE CONTEXT OF CLIMATE CHANGE IN REGIONAL DISTRIBUTION NETWORKS

The article presents an analysis of the technical, natural, operational, and external factors affecting the reliability of 35 kV overhead power lines in the Republic of Tajikistan. The main objective of the study is to identify the key causes of reduced network stability and to propose practical measures to improve reliability. The research methods include assessment of technical conditions, analysis of regulatory documents, collection of operational data, and evaluation of climatic risks. The results show that more than 70% of existing lines have exceeded their standard service life, increasing the likelihood of failures. Technical factors are related to conductor wear, corrosion of fittings, and degradation of insulation. Natural factors such as strong winds, icing, landslides, and rockfalls significantly affect the infrastructure. Operational factors arise from insufficient maintenance, inadequate repairs, and limited staff qualification. External factors, including illegal construction, traffic accidents, and fires, cause sudden line damage. The conclusion emphasizes that equipment modernization, the use of self-supporting insulated conductors (SIP), installation of reinforced poles, regular inspections, and the introduction of digital monitoring are essential for improving the reliability of 35 kV lines. This study is of great importance to energy agencies and engineers as a basis for developing energy infrastructure development programs. Implementation of the recommendations could significantly improve safety, reduce technical losses, ensure the stability of electricity supply and the efficiency of networks in the Sughd region, and contribute to economic development.

overhead power transmission lines, grid reliability, power line failures, impact of technical factors, natural factors, operational factors, external factors, aging and degradation, reliable power supply.

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2026-03-31