FIELD: agriculture.
SUBSTANCE: device includes a water-permeable screen consisting of cassettes made of conductive material and isolated from one another, and electronic equipment. Electric current is supplied to the cassettes, alternately one cassette or a group of two or more cassettes becoming the cathode, and any remaining or some of the remaining cassettes becoming the anode. Thereinafter each successive cassette or the subsequent group of cassettes in a chain or through one cassette or group of cassettes, or in staggered order, alternately becomes the cathode. The method of protecting against biological fouling provides for the pulsed current supply between the cassettes. The method of protecting against biological fouling and protecting fish from entering the water intake structure provides for the pulsed current supply with the displacement of the maximum of the cathodic potential along the water-permeable screen.
EFFECT: improving the effectiveness of fish protection equipment.
5 cl, 5 dwg
