Updating Station Catalogues and System Status Signals Catalogue

Section 504 Section 504.50  Updating Station Catalogues and System Status Signals Catalogue a)         For each point included in the Station Catalogue, the Station Catalogue shall contain, as a minimum, the name of the point; a description of each parameter (point) measured, sensed or calculated; the units of measure for analog points; the state indication for digital points, e.g., open or closed, on or off; and the type of point, e.g., analog or digital. b)         The owner shall provide the Agency an updated Station Catalogue for each nuclear power station at six month intervals.  In the event that the Station Catalogue remained unchanged, the owner shall notify the Agency that no changes were made, in lieu of providing an updated Station Catalogue.    The Agency may lengthen the Station Catalogue submission interval at any time. c)         Within 14 calendar days after receipt of an updated Station Catalogue, the Agency shall provide the owner with notice of any changes to the System Status Signals Catalogue. d)         The Agency shall select points for the System Status Signals Catalogue from the updated Station Catalogue using the following criteria: 1)         those points by which the off-site radiological consequences can be determined; 2)         those points by which challenges to, and failures of, the clad, the primary boundary, and the containment structures can be determined; 3)         those points by which short and long-term decay heat removal capabilities can be determined; or 4)         those points by which on and off-site station electrical power status can be determined.