Improving the Reliability of Overhead Power Lines Working in Extreme Weather Conditions
Reliability of overhead power lines is reduced in areas with high probability of formation of ice-frost deposits. The article presents a comparative analysis of innovative types of wires of domestic production such as AST and ASPT with traditional non-insulated steel-aluminum wire. The comparison of the wire temperature values from the current load; the maximum permissible currents, ice melting currents of different thickness, the values of the preventive heating currents of the wire from the air temperature and wind speed. It is revealed that the most option is to replace the steel-aluminum wire with a high-temperature compact wire of a smaller cross section.