TY JOUR TI MODELING OF THERMAL PROCESSES DURING EMERGENCY OVERLOAD CONDITIONS IN URBAN DISTRIBUTION NETWORKS KW household electrical appliances KW thermal processes KW fire safety KW urban electrical networks KW simulation modeling JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Polunin, G.A. AU Tavarov, S.S. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia