ML081840731

NFPA-805 Workshop Handouts - Harris NFPA-805 Results and Lessons Learned

ML081840731
Person / Time
Site:	Harris
Issue date:	06/20/2008
From:	Ertman J Nuclear Generation Group, Progress Energy Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML081840360	List: ML081840398 ML081840534 ML081840731 ML081840735 ML081840744
References
NFPA 805
Download: ML081840731 (11)

Text

Harris NFPA 805 Lessons Learned 6/20/08 Jeff Ertman 1

NFPA 805 Topics O Project Information O Technical Information Page 2

NFPA 805 PE Fleet Schedule Key Milestone HNP CR3 RNP BNP SSA Validation Complete Complete Complete December 2008 Letter of Intent Complete Complete Complete August 2008 NFPA 805 LAR Complete February August August May 2008 2010 2010 2011 Forecast June 2009 February August August SER/Program 2011 2011 2012 Implement NFPA 805/SSA November 2011 2012 2012 Modifications 2010 Complete Hemyc/MT November NA Complete NA Resolved 2010 Slide 3

NFPA 805 Fleet Plan O HNP 2008 Z Review alternative solutions for Variances from the Deterministic requirements currently identified as needing modifications Z Design and implement modifications Z Stage draft procedures and program document changes required for implementation - includes fleet procedures Z Training in preparation for NFPA 805 implementation Z Support NRC LAR site visit, answer RAIs (if any)

Z Support NRC triennial in September/November Z Pilot of NRC NFPA 805 inspection procedure O HNP 2009 Z Design and implement modifications Z Training in preparation for NFPA 805 implementation Z Implement NFPA 805 Program after SER received from NRC Page 4

NFPA 805 Fleet Plan (Cont)

O CR3 2008 - Completed Inputs for Fire PRA Z Circuit analysis and cable routing Z Internal events update Z Early Fire PRA tasks O CR3 2009 - Fire PRA Quantification, Classical FP, change evaluations O RNP 2008 - Circuit analysis and cable routing for outage scope, classical FP O RNP 2009 - Complete Fire PRA Inputs, Quantification O BNP 2008 - Complete SSA validation, Letter of Intent O BNP 2009 - Internal events upgrade Page 5

NFPA 805 HNP VFDs O ID Variances from the Deterministic (VFDs)

Z Examples include OMAs, MSOs, Hemyc, non protected cable, IN 92-18, by fire area, by cable Z 43 Fire Areas O Approximately 55% resolved under deterministic methodologies O Approximately 35% variances from the deterministic resolved under NFPA 805 change process O Approximately 9% currently require a plant modification Slide 6

NFPA 805 Technical Areas O MSOs Z Followed revised FAQ 38 which is in review process Z Expert Panel Z Added components, cables to SSA and FPRA O NPO Z Used revised FAQ 40 in process which is in review process Slide 7

NFPA 805 Technical Areas O OMAs - stay in control room fire Z Analyzed cables/components that required Manual action in Change Evaluation Z Assessment of negative risk impact Z OMAs not credited in the NSCA (SSA) for success Z All remaining considered DID O OMAs - leave the control room Z OMAs credited in NSCA - in general credit existing remote shutdown procedures O FAQ 0030 will be submitted to make changes to NEI 04-02 Slide 8

NFPA 805 OMA Flow chart Slide 9

NFPA 805 Change Evaluations O 15 change evaluations on Fire Area Basis Z Used current plant configuration with NFPA 805 mods installed as base CDF/LERF Z Delta is compared to component/cable VFD that meets deterministic O Tiered approach - used low delta as screen:

Z Compartment level Z Fire Scenario/Ignition Source level Z Individual cable/component/function Slide 10

NFPA 805 Observation O Convergence between Pilots and Non-Pilots looks good based on presentations Z Similar methods Z Identifying similar challenges O Focus effort on risk significance Z Fire Scenario Development O Leads to improved plant Safety Slide 11