TY JOUR TI FAILURE ANALYSIS AND FIRE HAZARD ASSESSMENT OF SYNCHRONOUS ELECTRIC MACHINES KW synchronous electric machines KW fire safety KW failure probability KW spectral diagnostics KW integral fire hazard criterion KW power engineering KW industrial safety JO Problems of risk management in the technosphere AU Bashirov, M.G. AU Dyul'din, N.D. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia