TY CONF TI USE OF THE EDUCATIONAL AND RESEARCH CAD OF TRANSMISSION LINES IN THE STUDY OF MATHEMATICAL MODEL OF THE WIRE SAG CURVE KW CAD KW educational and research version KW design of transmission lines KW mechanical calculation of overhead wires KW new calculated ratios KW numerical calculations KW comparative analysis of results JO CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019 AU Gorin, V.Y. AU Davidson, N.N. PY 2025 PB Bryansk State Technical University