FIELD: nuclear reactors. SUBSTANCE: lattice used to support fuel rods of nuclear fuel magazine of reactors, including watermoderated ones, so as to hold them in nodal points of regular-, usually square-shape network has its insert provided with slots equally spaced apart and used for connection to transversal inserts; rod-locking spring is provided between slots of at least some pairs of slots that has two flexible strips cut in flat wall of insert and built integral with rod. Each strip runs perpendicular to insert and is connected to movable part of insert on both ends. Strips run towards inner space of respective section when released and connected in center by means of cross clamp jutting beyond both strips. EFFECT: enhanced strength of insert, non-obstructed coolant circulation. 12 cl, 19 dwg
