ML082671192
| ML082671192 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/23/2008 |
| From: | Tam P S Plant Licensing Branch III |
| To: | Blake T M, Loeffler R A Nuclear Management Co |
| Tam P S | |
| References | |
| TAC MD9170 | |
| Download: ML082671192 (2) | |
Text
Accession No. ML082671192
From: Peter Tam Sent: Tuesday, September 23, 2008 4:11 PM To: 'Blake, Tim M.'; Loeffler, Richard A. Cc: Frank Orr
Subject:
Draft RAI re. proposed amendment to TS 3.5.1, ECCS (TAC MD9170)
Rick: We are reviewing your 6/26/08 application for amendment. Our reviewer, Frank Orr, has the following draft RAI question that we would like to discuss with you in a conference call.
Your application identifies the worst-case event as a recirculation line break event. For this event, protection systems appear to respond with acceptable consequences. Please discuss a feedwater line break event and protection systems response, showing that the consequences are not greater than those of the recirculation line break event. In a feedwater line break event, is the RPS qualified for the environment? Does the operator have to take actions? If so, show that the operator can act on a timely basis to depressurize the reactor vessel so that other mitigating equipment can function.
The sole purpose of this e-mail is to prepare you and others for the proposed conference call. This e-mail does not formally request for additional information, and does not convey a formal NRC staff position. With or without the requested conference call, we plan to formally issue the above draft RAI in final form around 10/17/08.
Peter S. Tam, Senior Project Manager Plant Licensing Branch 3-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Tel. 301-415-1451
E-mail Properties Mail Envelope Properties ()
Subject:
Draft RAI re. proposed amendment to TS 3.5.1, ECCS (TAC MD9170)
Sent Date: 09/23/2008 3:42:48 PM Received Date: 09/23/2008 4:10:00 PM From: Peter Tam
Created By: Peter.Tam@nrc.gov
Recipients:
Tim.Blake@xenuclear.com ('Blake, Tim M.')
Tracking Status: None Richard.Loeffler@xenuclear.com (Loeffler, Richard A.)
Tracking Status: None Frank.Orr@nrc.gov (Frank Orr)
Tracking Status: None
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MESSAGE 7628 09/23/2008
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Priority: olImportanceNormal ReplyRequested: False Return Notification: False
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