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GCB hitachi and abb leakage rate factory-sell-directly

SF6 Free HV GIS and Breakers - US EPA· PDF fileABB, GE, Hitachi & Siemens 3M ... 6 in GCB by Relative scale compared to CO 2 rating. 145kV SF6 Free GIS ... Leakage rate per year < 0.1 % Driving mechanism of circuit-breaker Spring Rated operating sequence O-CO-15s-CO Interrupter technology Vacuum Insulation medium Clean air

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