%0 Journal Article %T Identification of the causes of contact wire fracture on the elements of sectionalizing devices using fractographic study and spectral analysis %A Tarabin, I.V. %A Murav'ev, D.V. %A Kremlev, I.A. %A Terehin, I.A. %K sectional insulator, coupling, arc-extinguishing horn, contact wire, fractographic study, spectral analysis, current collector %J Bulletin of scientific research results %D 2024 %N 2024 %P 8 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"