Similar Documents at Hatch |
---|
Category:- No Document Type Applies
MONTHYEARML24018A0702023-11-30030 November 2023 Form 2.1-1 Examination Preparation Checklist ML17076A4322017-03-23023 March 2017 TSTF-542 Deviations Descriptions for Hatch Nuclear Plant ML16285A3282016-10-12012 October 2016 ROP PI Frequently Asked Questions (Faqs): 14-05 ML15236A1202015-08-25025 August 2015 Order EA-13-109 (HCVS) Phase 1 and 2 OIP Rev 0H3A - August 25, 2015 ML15233A0742015-08-10010 August 2015 SPRA Relief - Information to Support Reconsideration of Hatch U1 for Inclusion in SPRA Relief Due to Seismic Robustness and Similarities to Hatch U2 ML14314A5122014-11-13013 November 2014 Enclosure 2 - Frequently Asked Questions (Faqs) Discussed During the October 22 2014 Reactor Oversight Process Public Meeting ML13143A3312013-06-0606 June 2013 Operating Boiling-Water Reactor Licensees with Mark 1 and Mark 2 Containments Addresses List - Enclosure 2 ML12056A0522012-03-12012 March 2012 Enclosure 6 - List of Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status ML11313A1472011-09-30030 September 2011 CR New Summary - Southern Company ML11308A6682011-09-28028 September 2011 Georgia Power Company - Reactor Plant Event Notification Worksheet ML1020302702010-07-13013 July 2010 Current Issues, Edwin I Hatch Nuclear Plant ML1019303132010-06-0909 June 2010 Onsite Ground/Surface Water Monitoring Questionnaire for Hatch ML1019304602010-03-25025 March 2010 List of Historical Leaks and Spills at Us Commercial Nuclear Power Plants ML0933507512010-01-14014 January 2010 Temporary Instruction 2515/180, Managing Fatigue ML1019402172009-05-14014 May 2009 South Nuclear Plant E.I. Hatch - Actions for Potential Groundwater Contamination Events ML0818503872008-06-0606 June 2008 Consent and Hearing Waiver Form - Anthony Fortuna ML0806704192008-03-0707 March 2008 CDBI Findings ML0732400242007-10-25025 October 2007 Examples of Max Thermal Power License Conditions ML0626503122006-09-0101 September 2006 Liquid Radiation Release Lessons Learned Task Force Final Report (Enclosure) ML0610703612006-04-12012 April 2006 Attendance List ML0505404642004-02-0909 February 2004 Dynamic Web Page Printout Dated 02/09/2004 Regarding Applied Violations for Nuclear Power Plants ML0505402642003-10-22022 October 2003 Summary of EB1 Findings (07-09/03) ML0505402952003-09-30030 September 2003 Fire Protection Mc 0612 Appendix B Minor Questions Worksheet ML0403502122003-08-13013 August 2003 DRS Open Items Status ML0510100462003-07-21021 July 2003 NRC Audit Question 71 ML0510100542003-07-21021 July 2003 NRC Audit Question 72 ML0510100592003-07-21021 July 2003 NRC Audit Question 70 ML0510100562003-07-10010 July 2003 NRC Audit Question 51 ML0510100362003-07-0808 July 2003 NRC Audit Question 6 ML0505402572003-02-18018 February 2003 Note Regarding Local Operation of Valve 2E11-F015A ML0208102742002-02-28028 February 2002 Requested Permit Revisions - Edwin I. Hatch Nuclear Plant ML0208102722002-02-28028 February 2002 EPA Form 2C NPDES - Application for Permit to Discharge Wastewater Consolidated Permits Program - Edwin I. Hatch Nuclear Plant ML0208102712002-02-28028 February 2002 EPA Form 1 General - General Information Consolidated Permits Program - Edwin I. Hatch Nuclear Plant ML0208102792002-02-20020 February 2002 Certificate of Analysis from General Test Lab. to Georgia Power Co ML0208102762002-02-20020 February 2002 Certificate of Analysis from General Test Lab. to Georgia Power Co for Hatch Plant ML0208102782002-02-14014 February 2002 Florida Radiochemistry Services, Inc. - Lab Reports for Alabama Power Co ML0208102812002-02-0202 February 2002 Certificate of Analysis from General Test Lab. to Georgia Power Co 2023-11-30
[Table view] |
Text
Control Number:
Audit Question Processing Form (For Staff use only)
AQ-72 Question Initiated By: Schin, Bob Date: 7/21/2003 Regulatory Basis for Question:
Question:
How much time (in minutes) does it take to perform the fire protection procedural step of removing the sliding links? The time should be measured from the receipt of the fire detection alarm in Fire Area 2104.
Response
Actuation of all 11 SRVs due to fire induced spurious actuation of the non-safety electrical backup to the mechanical relief function is not part of the current licensing basis of Plant Hatch because it results from multiple hot shorts (2).
However, step 9.3.2.1 to open links to prevent the SRVs from opening in the unlikely event of multiple hot shorts occurring (or terminate SRV actuation should the SRVs already have opened) was added to the fire procedure 34AB-X43-001-2 as a prudent additional action, in spite of the fact that the assumption of multiple hot shorts is not part of the Plant Hatch current licensing basis.
Since spurious actuation of all 11 SRN's due to multiple hot shorts is not considered probable and is not part of the Plant Hatch current licensing basis, the referenced procedural step to open links is not a step that is trained on in a manner to assure that it can be performed within a certain prescribed time (it is not considered a time critical action). Therefore, SNC cannot provide a bounding time to perform the referenced procedural step (as measured from the receipt of the fire detection alarm in Fire Area 2104) that captures with high confidence the time period it would likely take operators to complete the action.
Selected training and operations personnel have reviewed the subject procedure and the actions required to reach and complete step 9.3.2.1 in the event of a fire in Fire-Area 2104,-and provided an estimated time-of minutes. However, the individual circumstances associated with an event could cause that time interval to be longer or shorter. Again, please note that operators are not trained to perform this step within a certain prescribed period of time.
(For Staff use only)
Response by: Tully, Cindy Reviewed by: Luker, Ira Staff init:
I NRC Status: In Progress 5