WRC 387:1993

$52.65

White Paper on Reactor Vessel Integrity Requirements for Level A and B Conditions

Published By	Publication Date	Number of Pages
WRC	1993	85

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Category: WRC

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Description

The purpose of the ASME Section XI Task Group on Reactor Vessel Integrity Requirements was to examine the ASME Code requirements for reactor vessel integrity. As a part of this effort, the historical basis of the current ASME Section III, Appendix G limits for plant operating criteria was revisited. With the benefit of advancing technology, the appropriateness of the existing Code requirements was reexamined.

The goals of the Task Group were to:

Review current regulations for material reference toughness, assumed reference flaw size and plant operating criteria, and identify areas of conservatism and potential nonconservatism.
Provide recommendations for determining plant operating pressure-temperature limits while maintaining the necessary requirements to assure vessel integrity.

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