Description Overview Natural gas fired Electrical Specifications Frequency: 50 Hz Rated voltage: 11 kV Rated current: max FLC Highest system voltage: 12 kV Rated insulation level (1 min): 28 kV Impulse withstand voltage (full wave 1.2/50 microseconds): 75 kV Short circuit current, 1s: 50 kA Short circuit current (peak): 125 kA Protection Degree of protection: IP54