FIELD: vessels and other watercrafts.
SUBSTANCE: vessel has compartment (34) for water content, wherein compartment (34) has at least one hole (31) in wall (30) to allow passage of water through it. Compartment (34) comprises grid unit (1) and at least one source (20) of protection against biofouling, wherein grid (10) is located in hole (31) to prevent passage of objects through hole (31) together with water and comprises several elements and gaps between elements, and the biofouling protection source (20) is configured to emit ultraviolet light during operation to provide protection against biofouling of at least a portion of array (10). At least one of elements of grid (10) is at least partially permeable for ultraviolet light, which provides structure of assembly (1), in which protection against biofouling of entire grid (10) can be guaranteed.
EFFECT: invention relates to shipbuilding and concerns protection of ship structures from biofouling.
10 cl, 5 dwg
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