High-power untriggered spark gaps intended for operation at a voltage of up
to 150 kV and a current of 10 kA have a service life of up to 10(11) pulse
s. The spark gaps ensure switching to a load for 5-20 ns with a pulse repet
ition rate of up to 400 Hz. They operate under atmospheric pressure without
blowing-through in an installation for decontaminating processing of produ
cts with high-voltage pulses.