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Report Report Safety of new NPP designs - Study by Reactor Harmonization Working Group RHWG March 2013 RHWG safety of new NPP designs Study by WENRA RHWG March 2013 / Page 2 Table of Content Safety of new NPP designs - 01 Introduction 3 02 WENRA safety objectives for new nuclear power plants 5 03 Selected key safety issues 7 Position 1: Defence-in-depth approach for new nuclear power plants 9 Position 2: Independence of the levels of Defence-in-depth 15 Position 3: Multiple failure events 19 Position 4: Provisions to mitigate core melt and radio-logical consequences 24 Position 5: Practical elimination 29 Position 6: External hazards 33 Position 7: Intentional crash of a commercial airplane 39 04 Lessons Learnt from the Fukushima Dai-ichi accident 41 External hazards 42 Reliability of safety functions 42 Accidents with core melt 42 Spent Fuel Pools 43 Safety assessment 43 Emergency preparedness in design 4
Author: Studer Nathalie Created Date: 4/8/2013 2:48:07 PM
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