FIELD: hydraulic engineering; fish repelling from water intakes. SUBSTANCE: method involves generation of electric pulses in water by means of conducting electrodes. Electric pulses are passed from power-unit generator at pulse amplitude of 1240-1590 V and pulse repetition frequency of 3-8 Hz; in the process protective electric field is built up in which fish is exposed to pulse action for 170-200 mcs with pointed waveform of this pulse. EFFECT: improved stability and efficiency of fish, larvae, and whitebait protection from ingress into water intakes. 2 dwg
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