Abstract
The Nuclear Regulatory Commission (NRC) developed Generic Safety Issue 113, “Dynamic Qualification and Testing of Large Bore Hydraulic Snubbers (LBHSs),” with the objective of evaluating the reliability of LBHS in operating commercial nuclear power plants. This paper provides a summary of the important findings of the Generic Safety Issue-113 research program and a discussion of the recommendations that were made in NUREG/CR-5416. Fifteen potential improvements in LBHS reliability were identified, covering the areas of design, environmental (including dynamic) qualification, functional testing, visual inspection, and personnel training.
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