"Although air is normally an excellent insulator, when stressed by a sufficiently high voltage (an electric field strength of about 3 x 10^6 V/m), air can begin to break down, becoming partially conductive."
300000 V/m => 5000 V/cm. Tehát a pár centid helytálló, ezek szerint max 5 centit tud legyűrni a 25kV:)
"Although air is normally an excellent insulator, when stressed by a sufficiently high voltage (an electric field strength of about 3 x 10^6 V/m), air can begin to break down, becoming partially conductive."
300000 V/m => 5000 V/cm. Tehát a pár centid helytálló, ezek szerint max 5 centit tud legyűrni a 25kV:)