ML102990170
| ML102990170 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/28/2010 |
| From: | Gray H - No Known Affiliation |
| To: | Conte R NRC Region 1 |
| References | |
| FOIA/PA-2010-0334 | |
| Download: ML102990170 (1) | |
Text
Ziev, Tracey From:
Gray, Harold Sent:
Wednesday, April 28, 2010 5:24 PM To:
Conte, Richard Cc:
Burritt, Arthur; Modes, Michael
Subject:
Salem AFW questions - Conf Call 4/28/2010 PM During the HQ-RI conference call on 4/28 the following 4 questions were noted regarding the U1-U2 AFW missed buried piping IWA-5244 tests.
--For the U1 structural integrity evaluation what is the contribution of seismic induced stresses? This is to establish the magnitude of the seismic stresses in comparison to the pressure induced stresses. It is expected that the pressure induced stresses will be the dominant stress source.
--For the U1 finite element analysis, confirm that the area of compensation for the missing material at the deepest pit ( 0.077") was within the Code caculational requirements.
--For the AFW pipe coating done on U2 determine:
What coating was put on the pipe?
How long was the coating expected to be effective?
--Does the final Operability Evaluation for the U2 AFW buried piping adequately use the known condition of the U2 AFW pipe coating and the inputs from the U1 observations, measurements and analysis to confirm operability of U2 AFW until the IWA-5244 tests are done at the next U2 RFO.
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