TY JOUR TI POWER SAVING ELECTROTECHNICAL INSTALLATIONS IN THE MODERN BUILDINGS OF RURAL AREA SCHOOLS KW power supply KW lighting KW building operation KW electrical network protection JO Bulletin of KSAU AU Kungs, Y.A. AU Lapitsky, A.G. AU Sechin, K.G. PY 2012 IS PB Krasnoyarsk State Agrarian University