ML101670548

Farley Nuclear Plant, NRC Screening Criteria Response

ML101670548
Person / Time
Site:	Farley
Issue date:	06/08/2010
From:	Ajluni M, Lattner J, Martin R, Sutton D Southern Nuclear Operating Co
To:	NRC/NRR/DIRS/IRIB
Jeremy Bowen, 415-3471
Shared Package
ML101670555	List: ML101670428 ML101670490 ML101670501 ML101670520 ML101670523 ML101670548
References
Download: ML101670548 (7)

Text

Enclosure 4 Farley Nuclear Power Plant Presentation Meeting Summary of the 6/8/2010 Meeting with NRC/SNC/FPL/SCE&G Dated June 17, 2010

Farley Nuclear Plant NRC Screening Criteria Response Mark Ajlun i SNC Nuclear Licensing Manager Dom Sutton SNC Programs Manager Ray Martin FNP Technica l Services Manager John Lattner FP Principle Engineer June 8, 2010

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FNP Fire Protection o Introduction

• FNP - Two 900 MWe 3 loop Westinghouse PWR Units

• Committed to 10CFR 50 App R.

• The FNP fire protection program provides defense-in-depth protection:

Design Features Fire Fighting Equipment Personnel Training Operating Procedures

NRC Screening Criteria Criteria Applies to Reason/Info FNP Large Number of Operator Yes* FNP is estimated to have sign ificantly less than Actions BFN but more than th e other SNC plants.

Singl e Fire ca n effect more No

• Fire areas/equipment relied upon for App R safe than one Unit. shutdown are not common. Shared DG's can be im pacted . DG redundancy ensures SSD.

Use of Thermop lastic Cables Not Some thermoplastic used for low voltage Sign ificant* applications such as cameras or telecommun ications . Less tha n 8 % of cables installed.

Problems docu mentin g cable No No significant issues with documenting cab le routing routing.

Ana lysis Credits Self Induced No SISBO not cred ited Station Blackouts Comp li cated Manua l Operato r Yes

• Based on NRC criteria. Current manua l actions are Actions felt to be reasonable. Operators are trained and drilled on actions . Compensatory actions in place .

Mit igation of a fire requ ires Not No electrical cross connections credited. Lim ited the use of systems f rom Sign ificant use of cross connected air systems. N2 backup to multiple units (electrical or PORV's is cred ited and is not a cross connected mechanical cross-unit t ies). system .

Use of Symptom based Yes* Although decision required, event recogn it ion is not Procedu res. req uired.

FNP Fire Protection Initiatives D Initiatives

• Elimination of Kaowool fire wrap by cable reroute to ensure proper cable separation was complete in 2006

• FNP is transitioning to NFPA 805

• Fire PRA Model under development

• Safe Shutdown Analysis Revalidation

• OMA Feasibility Study & Compensatory Actions

FNP Fire Protection Summary o OMA along with procedures is the main reason for yes screen criteria o Conservative LOSP assumption has added OMAs o Application of NFPA 805 will significantly reduce OMAs o Thermoplastic cables used in lower voltage applications and low 0/0 o No reliance on cable wrap material proper separation exists for cables.

o FNP believes that 3 of the 8 screening criteria are material.