BRACING GRIDS FOR NUCLEAR REACTOR FUEL SUB-ASSEMBLIES

摘要

A bracing grid (27) made from joggled strip (20) and which is one of a number of similar grids supporting fuel pins (26) in a fuel sub-assembly for a nuclear reactor is characterized in having the peripheries of the grids completed by unit edge cells (21). Where the periphery of the grids accommodate sub-assembly corner posts (30) the continuity of the unit edge cells is maintained around the corner posts.