Improving the energy efficiency of wide crossings of overhead power lines Natalya Shevchenko, Anatoly Soshinov, Olga Elfimova, Julia Lebedeva and Olga Akhmedova E3S Web Conf., 178 (2020) 01046 Published online: 09 July 2020 DOI: 10.1051/e3sconf/202017801046