APPLICATION OF THE GIP METHODOLOGY TO DEMONSTRATE SEISMIC ADEQUACY OF NEW AND REPLACEMENT EQUIPMENT AND PARTS IN USI A-46 PLANTS

摘要

This paper discusses the guidance developed by the Seismic Qualification Utility Group (SQUG) for application of GDP methods to new and replacement equipment and parts. These SQUG guidelines address considerations unique to application of the GIP to new and replacement items including licensing requirements, differences between installed items and items yet to be procured, differences in demonstration of seismic adequacy of parts versus equipment and equipment vintage issues. The SQUG guidance can be used by USI A-46 utilities to develop plant-specific procedures for use of GIP methods which will satisfy their licensing basis seismic requirements. The resulting methods will be significantly more cost effective than current equipment qualification methods involving testing and/or analysis and will provide safety margins consistent with those demonstrated during resolution of USI A-46.