TY JOUR TI COMPREHENSIVE APPROACH TO IMPROVING THE LEARNING PROCESS OF VOCATIONAL AND SPECIAL DISCIPLINES IN UNIVERSITIES OF EMERCOM OF RUSSIA KW fire safety of electrical installations KW electrical equipment KW laboratory work JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Skripnik, I.L. AU Voronin, S.V. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia