ML11318A215

OL - Additional Info on Fire Protection Audit Scope

ML11318A215
Person / Time
Site:	Watts Bar
Issue date:	10/18/2011
From:	Office of Nuclear Reactor Regulation
To:	Division of Operating Reactor Licensing
References
Download: ML11318A215 (4)

Text

WBN2Public Resource From: Poole, Justin Sent: Tuesday, October 18, 2011 2:21 PM To: Arent, Gordon Cc: gcscott@tva.gov; WBN2HearingFile Resource

Subject:

Additional Info on Fire Protection Audit Scope Attachments: WB2 Detailed FP Audit Scope v2.docx

Gordon, The staff was able to provide me with a more detailed list of items they will be interested in for the audit. This does not supersede what was previously sent but rather compliment and provided greater detail. Thanks.

Justin C. Poole Project Manager NRR/DORL/LPWB U.S. Nuclear Regulatory Commission (301)415-2048 email: Justin.Poole@nrc.gov 1

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 587 Mail Envelope Properties (19D990B45D535548840D1118C451C74DAB3570F6B3)

Subject:

Additional Info on Fire Protection Audit Scope Sent Date: 10/18/2011 2:20:34 PM Received Date: 10/18/2011 2:20:36 PM From: Poole, Justin Created By: Justin.Poole@nrc.gov Recipients:

"gcscott@tva.gov" <gcscott@tva.gov>

Tracking Status: None "WBN2HearingFile Resource" <WBN2HearingFile.Resource@nrc.gov>

Tracking Status: None "Arent, Gordon" <garent@tva.gov>

Tracking Status: None Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 390 10/18/2011 2:20:36 PM WB2 Detailed FP Audit Scope v2.docx 24011 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

More Detailed Watts Bar Fire Protection Audit Scope Regulatory Audit Scope

1) Installed plant fire protection features a) Auxiliary Building water curtain functional details (open or closed heads, wet-pipe or preaction, etc.) [FPR Part VII, Section 2.6.3.1]

2) Fire water system a) Intake Pumping Station - electric fire pumps b) Fire scenarios in IPS-A and B that require OMAs (Scenarios in IPS-A [FPR Part VII, Section 8.3.81.3] - OMA 1023 and in IPS-B [FPR Part VII, Section 8.3.82.3] - OMA 1024). Audit fire brigade response to IPS-A and B, and fire scenarios involving ECRW pumps.

c) Diesel Fire Pump Building d) Cross connect valves between Yard loop and Safety loops

3) Tour Auxiliary Control Room a) Path from main control room to alternate control room b) Verify availability of indication listed in FPR Part IV - Section 3.0 i) Particularly the indications listed in FPR Part VII - Section 2.1 to compensate for lack of Tc and wide range steam generator level.

4) Tour Unit 2 Containment a) Oil collection system [FPR Part II, Section 12.9 and Part VII, Section 2.8]

b) Radiant Energy shields [FPR Part VII - Section 2.2]

5) Operator Manual Actions (OMAs) a) Staffing and training [FPR Part V]

6) III.G.2 OMAs a) Audit fire scenarios, and feasibility and reliability of OMAs b) OMAs 1444 and 1445 for a fire in Rooms 772.0-A15 East, 772.0-A15 West and 772.0-A16 c) OMAs 1540 and 1542 for a fire in Room 737.0-A1B d) OMA 1023 for a fire in Room 729.0-A6 e) OMAs 1022 and 1023 for a fire in Room 729.0-A14.

7) Alternate Safe Shutdown OMAs - Control Building - Fire Area 48 a) OMAs to operate 2PCV112; 2FCV335A; 2FCV348A; 2BD211BB; 2DG82AA b) OMA to operate 2-MCC-213-A1-A - 18 minute manual action on a different elevation.

8) Large fire dampers a) 1-ISD-31-3807 and 2-ISD-31-3882 [FPR Part VII - Section 3.4]

9) Tour Auxiliary Building a) Indoor oil-filled transformers [8/5/11 TVA response to RAI VIII-21]

b) Large rooms separated into analysis volumes - buffer areas

10) Unit 2 Auxiliary Equipment Room CO2 system [FPR Part II. Section 12.3.3]

11) Tour Control Building a) Areas lacking suppression

More Detailed Watts Bar Fire Protection Audit Scope i) 692.0-C5 - 250V Battery Board Room 2 ii) 692.0-C8 - 24V and 48V Battery Board and Charger Room iii) 755.0-C13 - Relay Room