ML13072A253
| ML13072A253 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 02/13/2013 |
| From: | Office of Nuclear Reactor Regulation |
| To: | Division of Operating Reactor Licensing |
| References | |
| Download: ML13072A253 (3) | |
Text
1 WBN2Public Resource From:
Poole, Justin Sent:
Wednesday, February 13, 2013 11:07 AM To:
Arent, Gordon Cc:
WBN2HearingFile Resource
Subject:
FW: WBN 2 technical issue: sprinkler obstruction
- Gordon, Please take a look at the issue as described below.
Justin C. Poole Sr. Project Manager NRR/DORL/LPL2-2 U.S. Nuclear Regulatory Commission (301)415-2048 email: Justin.Poole@nrc.gov From: Frumkin, Daniel Sent: Wednesday, February 13, 2013 10:39 AM To: Moulton, Charles; Poole, Justin
Subject:
RE: WBN 2 technical issue: sprinkler obstruction
- Justin, Based on the format of the Watts Bar fire protection report, Part X (ten) the staff expected a brief evaluation (perhaps a short paragraph or a few bullets), NFPA 13, element 4-4.13, of why the duct obstructions are acceptable in that particular area. When we looked at Part X, there was no evaluation.
This appears to be an omission of an evaluation that they should have performed.
Dan From: Moulton, Charles Sent: Wednesday, February 13, 2013 9:34 AM To: Poole, Justin Cc: Frumkin, Daniel
Subject:
WBN 2 technical issue: sprinkler obstruction Importance: High The staff has identified an issue related to sprinkler system coverage under obstructions:
FPR Part X (page X-30) identifies a deviation from NFPA 13-1975 element 4-4.13: Sprinklers under HVAC ducts over 4 feet wide not provided in U1 penetration room on elevation 692 in vicinity of double duct over cooler 1B-B. This is the only information concerning this configuration in the FPR. This configuration also seems to contradict the sprinkler obstruction guidelines in Part VII of the FPR.
TVA should:
- 1) Confirm which room this configuration exists in;
- 2) Provide an evaluation of the acceptability of not providing sprinkler coverage under this obstruction.
- 3) Confirm that a similar configuration does not exist for Unit 2, or if it does, provide an evaluation for Unit 2.
2 Charles Moulton Fire Protection Engineer NRR/DRA/AFPB Phone: 415-2751 Mailstop: O-10C15
Hearing Identifier:
Watts_Bar_2_Operating_LA_Public Email Number:
781 Mail Envelope Properties (19D990B45D535548840D1118C451C74D016D79557A38)
Subject:
FW: WBN 2 technical issue: sprinkler obstruction Sent Date:
2/13/2013 11:06:40 AM Received Date:
2/13/2013 11:06:41 AM From:
Poole, Justin Created By:
Justin.Poole@nrc.gov Recipients:
"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 1948 2/13/2013 11:06:41 AM Options Priority:
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