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The inspectors identified a finding of ver … The inspectors identified a finding of very low safety significance (Green) and associated NCV of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, for the licensees failure to have adequate acceptance criteria in the station battery surveillance procedures. Specifically, the licensee failed to incorporate the 125 volt direct current (Vdc) system minimum voltage design value shown in the station battery sizing calculations as acceptance criteria for the minimum battery terminal voltage in the service discharge test surveillance procedures. The licensee entered this finding into their Correction Action Program, verified the battery voltage did not go below the minimum required system voltage value, and initiated an action item to revise surveillance procedures to include minimum battery terminal voltages. The performance deficiency was determined to be more than minor because if left uncorrected, it would have the potential to lead to more significant safety concern. Specifically, the current alarm value of 107 Vdc specified in the procedure would not alert operators if the battery voltage dropped below its design limit. Since the finding did not represent an actual loss of safety function, the inspectors screened the finding as having very low safety significance (Green). The inspectors did not identify a crosscutting aspect associated with this finding because the finding was not representative of the licensee's current performance.ive of the licensee's current performance. +
23:59:59, 30 September 2014 +
23:59:59, 30 September 2014 +
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Ann Marie Stone +, C Edwards +, N Valos +, J Chiloyan +, Benny Jose +, Alan Dahbur + and Jonathan Braisted +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
12:59:16, 25 September 2017 +
Ann Marie Stone +, C Edwards +, N Valos +, J Chiloyan +, Benny Jose +, Alan Dahbur + and Jonathan Braisted +
23:59:59, 30 September 2014 +
Failure to Include Minimum Required System Voltage as an Acceptance Criterion in the 125 Vdc Station Battery Surveillances Test Prcoedures +