Your responses will be anonymous, treated in the strictest confidence and not passed on to anybody else (please read our
The switch disconnector is using SF6 as extinguishing and insulating medium. The epoxy resin housing is equipped with two thermo plastic windows to allow visual inspection.
The SFG has 3 positions: CLOSE-OPEN-EARTHING. Mechanical endurance is 5000 C/O and 1000 O/Earth.
Each switch is sealed for life (i.e. 30 years) and maintenance free. SF6 gas pressure is 1.4 bar and the SFG switch incorporates a capacitive divider for voltage indication.