ML101670548: Difference between revisions

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| number = ML101670548
| number = ML101670548
| issue date = 06/08/2010
| issue date = 06/08/2010
| title = 06/08/2010 - Farley Nuclear Plant, NRC Screening Criteria Response
| title = Farley Nuclear Plant, NRC Screening Criteria Response
| author name = Ajluni M, Lattner J, Martin R, Sutton D
| author name = Ajluni M, Lattner J, Martin R, Sutton D
| author affiliation = Southern Nuclear Operating Co, Inc
| author affiliation = Southern Nuclear Operating Co, Inc
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=Text=
=Text=
{{#Wiki_filter: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 Mart in FNP Technica l Services Manager John Lattner FP Principle Engineer June 8, 2010 c 0 .-co U .-l... Q) Q) "'-' 0 .-C l... U S-o CL .-01 C "'-' Ul U C Q) 0 .-Q) ::l .-> Ul CO "'0 C .-::l S-Q) "'-' "0 0 CO .-Q) u LL c l... .-"'-' l... "'-' C OJ c u .-0 c CL 01 ....... (J) ....... U z << * * *
{{#Wiki_filter: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
* LL 0 FNP Fire Protection o Introduction
 
* FNP -Two 900 MWe 3 loop Westinghouse PWR Units
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.
* Committed to 10CFR 50 App R.
* The FNP fire protection program provides defense-in-depth protection:
* The FNP fire protection program provides defense-in-depth protection:
Design Features Personnel Training Fire Fighting Equipment Operating Procedures NRC Screening Criteria Criteria Applies to Reason/Info FNP Large Number of Operator Yes* FNP is estimated to h ave sign i ficantly less than Actions BFN but more than th e other SNC plants. S i ngl e Fire ca n effect more No* Fire a r eas/equipment re li ed 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 l ast i c Cables Not Some thermoplastic used for low voltage Sign i ficant* applications s u ch as cameras o r te l ecommun i cations. Less tha n 8 % of cab l es installed.
Design Features           Fire Fighting Equipment Personnel Training        Operating Procedures
Problems docu m ent in g cable No No signif i cant issues w i th documenting cab l e routing rout i ng. Ana l ysis Credits Se l f Induced No SISBO not cred i ted Stat i on Blackouts Comp li cated Manua l Operato r Yes
 
* Based on NRC cr i teria. Current manua l act i ons are Actions fe l t to be reasonab l e. Operators are trained and drilled on actions. Compensatory actions in place. M i t i gat ion o f a fire requ i res Not No electr i cal cross connections credited.
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.
Lim i ted the use of systems f r om Sign i ficant use of cross connected a i r systems. N2 backup to mult i p l e units (electrical or PORV's is cred i ted and is not a cross connected mechanical cross-unit t i es). system. Use of Symptom based Yes* A l though decision required, event recogn i t i on is not Procedu r es. req u i r ed.
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
FNP Fire Protection Initiatives D Initiatives
* Elimination of Kaowool fire wrap by cable reroute to ensure proper cable separation was complete in 2006
* Elimination of Kaowool fire wrap by cable reroute to ensure proper cable separation was complete in 2006
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* Fire PRA Model under development
* Fire PRA Model under development
* Safe Shutdown Analysis Revalidation
* 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.}}
* 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.}}

Latest revision as of 23:02, 11 March 2020

Farley Nuclear Plant, NRC Screening Criteria Response
ML101670548
Person / Time
Site: Farley  Southern Nuclear icon.png
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:
References
Download: ML101670548 (7)
v • d • e


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

c 0

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Q)

Q)

~ .-

l...

0 C o U S- .- 01 Ul C

0 CL "'-'

U C Q) .-

l C > Ul
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S- 0 Q) .-

CO u

.- "0 c

l...

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"'-' C LL c OJ .......

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FNP Fire Protection o Introduction

  • FNP - Two 900 MWe 3 loop Westinghouse PWR Units

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
  • Fire PRA Model under development
  • 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.

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