FIELD: nuclear power engineering. SUBSTANCE: repairable fuel element has holding tube passed on one end through holding board of fuel-element cap and abutting through its external projection against inner side of holding board. Fuel element also has guide tube fixed by means of screw joint to holding tube above external side of holding board. Guide tube is further free to pass through parallel board fixed above external side of holding board in a spaced relation to it. Sleeve tube threaded in opposite direction to guide tube and arranged coaxially to the latter is rigidly screwed to parallel board on its top side and locked for disengaging and geometric latching with guide tube to prevent its turning about common longitudinal axis. EFFECT: improved repairability. 3 cl, 4 dwg
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