TY JOUR TI EFFECT OF OVERLOAD CURRENTS ON THE METAL STRUCTURE FORMATION IN THE DESTRUCTION OF COPPER CONDUCTORS KW electrical overloads KW copper wire KW metallographic analysis KW forensic fire-technical examination JO Vestnik of the East Siberian institute of the Ministry of internal affairs of the Russian Federation AU Kuznetsov, K.L. AU Shekov, A.A. PY 2016 IS PB East Siberian institute of the Ministry of Internal Affairs of the Russian Federation