ML11187A343
| ML11187A343 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 06/21/2011 |
| From: | Office of Nuclear Reactor Regulation |
| To: | Division of Operating Reactor Licensing |
| References | |
| Download: ML11187A343 (2) | |
Text
1 WBN2Public Resource From:
Poole, Justin Sent:
Tuesday, June 21, 2011 1:40 PM To:
Bryan, Robert H Jr Cc:
WBN2HearingFile Resource
Subject:
Clarification on SAMDA Based on our conversations, the staff believes that if TVA can make the following statement (or something very similar) in a letter than this would resolve our need for clarification. Thanks.
JustinC.Poole ProjectManager NRR/DORL/LPWB U.S.NuclearRegulatoryCommission (301)4152048 email:Justin.Poole@nrc.gov
In TVAs June 17 submittal (TVA 2011d) it is stated that the mission time for the RPS ESFAS and instrumentation is 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Subsequently TVA clarified that this reference to instrumentation was meant to refer to instruments associated with a reactor trip but are not specifically classified as RPS or ESFAS; it is not for all plant instrumentation. They further stated that instrumentation sufficient to monitor safe shutdown is considered to have a mission time of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. (TVA 2011e)
Hearing Identifier:
Watts_Bar_2_Operating_LA_Public Email Number:
430 Mail Envelope Properties (19D990B45D535548840D1118C451C74D8CB267B9AC)
Subject:
Clarification on SAMDA Sent Date:
6/21/2011 1:40:00 PM Received Date:
6/21/2011 1:40:02 PM From:
Poole, Justin Created By:
Justin.Poole@nrc.gov Recipients:
"WBN2HearingFile Resource" <WBN2HearingFile.Resource@nrc.gov>
Tracking Status: None "Bryan, Robert H Jr" <rhbryan@tva.gov>
Tracking Status: None Post Office:
HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 848 6/21/2011 1:40:02 PM Options Priority:
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