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10 CFR Part 50, Appendix B, Criterion III, … 10 CFR Part 50, Appendix B, Criterion III, Design Control, required, in part, that design control measures shall provide for verifying or checking the adequacy of the design. Contrary to the above, as of July 6, 2011, the licensees design control measures failed to verify the adequacy of L-Wall rollup door fusible link melt times associated with the ESF Switchgear Rooms, Non-ESF Switchgear Rooms, DG Rooms, and MEERs. Specifically, the licensee identified that the assumed melt time of approximately 5 seconds did not conform to the UL-33 specification of up to 100 seconds for the ESF Switchgear Room rollup doors and up to 200 seconds for the MEERs and Non-ESF Switchgear Room rollup doors. The licensee performed an operability determination and concluded that the equipment in these rooms would remain operable during a licensing basis HELB event. This finding was determined to be Green based upon the conclusions reached in the operability evaluation and the inspectors review of those conclusions. This issue was entered into the licensees CAP as IR 1185016 and IR1237140. Corrective actions included implementing an Operations Standing Order to prevent the rollup doors from being opened in Modes 1-4.llup doors from being opened in Modes 1-4. +
23:59:59, 31 December 2011 +
23:59:59, 31 December 2011 +
10 +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
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Bruce Bartlett +, Eric Duncan +, A Dunlop +, B Palagi +, R Jicklin +, M Perry +, V Megani +, Alex Garmoe +, Matthew Learn +, Tony Go +, Jamie Benjamin + and Jim Nance +
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>.
15:43:42, 30 May 2018 +
Bruce Bartlett +, Eric Duncan +, A Dunlop +, B Palagi +, R Jicklin +, M Perry +, V Megani +, Alex Garmoe +, Matthew Learn +, Tony Go +, Jamie Benjamin + and Jim Nance +
23:59:59, 31 December 2011 +