ML100690013
| ML100690013 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/08/2010 |
| From: | Herrin D Progress Energy Florida |
| To: | Farideh Saba Plant Licensing Branch II |
| Saba F, NRR/DORL/LPL2-2, 301-415-1447 | |
| References | |
| Download: ML100690013 (1) | |
Text
From:
Herrin, Dennis W. [Dennis.Herrin@pgnmail.com]
Sent:
Monday, March 08, 2010 1:29 PM To:
Saba, Farideh
Subject:
RE: Clarification of CR-3 response to RAI 09-001-IT-002 Ms. Farideh Saba, The final paragraph of CR-3s response to RAI 09-001-IT-002 states:
Expanding the lower acceptable range on the Comprehensive Pump Test to the lower acceptable range of the Group A test eliminates the Alert Range for delta pressure for centrifugal pumps, excluding vertical line shaft centrifugal pumps. However, should a delta pressure fall into the alert range during the Comprehensive Pump Test, action would be taken to perform the Comprehensive Pump Test on an increased frequency (annually). This increased frequency would be less frequent than the quarterly testing being proposed, thus providing increased quality and safety.
This paragraph is explaining that the alternative testing method being proposed by CR-3 provides increased quality and safety when compared to the requirements of Table 5100-1 of ASME OM Code 2001 Edition through 2003 Addenda. While this table requires an alert range of 0.90 to <0.93 for delta pressure during Comprehensive Pump Testing, the consequences for a pump testing in the alert range during a Comprehensive Pump Test would be to double the testing frequency for the pump. This would result in Comprehensive Pump Testing being performed on the pump on an annual frequency. The alternative being proposed by CR-3 is to test the pumps covered by Table 5100-1 at Comprehensive Pump Testing conditions and instrumentation requirements on a quarterly frequency with an acceptable range for delta pressure of 0.90 to 1.06 with no alert range. Testing these pumps under Comprehensive Pump Testing conditions on a quarterly frequency provides added quality and safety when compared to the minimum requirements of ASME OM Code Table 5100-1.
Dennis W. Herrin Lead Engineer - Licensing & Regulatory Programs Progress Energy Florida, Inc.
Crystal River Unit 3 352-563-4633/352-464-7455 (Cell)
Voicenet 240-3299 Dennis.Herrin@pgnmail.com E-mail Properties Mail Envelope Properties (7FD614EFA33B03448166AF44364F42AE0CB1CD70BD)
Subject:
RE: Clarification of CR-3 response to RAI 09-001-IT-002 Sent Date: 3/8/2010 1:28:55 PM Received Date: 3/8/2010 1:28:55 PM From: Herrin, Dennis W.
Created By: Dennis.Herrin@pgnmail.com
Recipients:
Farideh.Saba@nrc.gov (Saba, Farideh)
Tracking Status: None Post Office:
WN000075.oak.zone1.progress-energy.com Files Size Date & Time MESSAGE 14742 3/8/2010 Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: