NUCLEAR FUEL ASSEMBLY COMPRISING A REINFORCING MESH DEVICE AND USE OF ONE SUCH DEVICE IN A NUCLEAR FUEL ASSEMBLY

摘要

The invention relates to a nuclear fuel assembly comprising nuclear fuel rods and a support structure having two end pieces, guide tubes (11) which connect said end pieces and retention grids which maintain the rods fixed to the guide tubes. The invention further comprises at least one mesh device (21) which is used to reinforce the support structure. The reinforcing device (21) is disposed between two retention grids and is fixed to the guide tubes (11). The invention is suitable for assemblies that are intended for pressurised water reactors.