ML13282A576
| ML13282A576 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 10/02/2013 |
| From: | Cotton K Division of Operating Reactor Licensing |
| To: | Geoffrey Miller Dominion Generation |
| References | |
| MF1825 | |
| Download: ML13282A576 (3) | |
Text
1 NRR-PMDAPEm Resource From:
Cotton, Karen Sent:
Wednesday, October 02, 2013 11:31 AM To:
Gary D Miller; Candee Lovett (candee.lovett@dom.com)
Subject:
RAI for Surry Power Station Unit 1, Relief Request P-5 (TAC No. MF1825)
Attachments:
Surry Unit 1 RR P-5 RAI1.docx By letter dated May 1, 2013 from N. L. Lane of Virginia Electric Power Company to NRC, Virginia Electric and Power Company, Surry Power Station Units 1 and 2, Inservice Testing Program for Pumps and Valves, Fifth Ten Year Interval Update and Associated Relief Requests, Virginia Electric and Power Company requested relief from certain requirements of the American Society of Mechanical Engineers Operation and Maintenance of Nuclear Power Plants Code. In reviewing this request the U.S. Nuclear Regulatory Staff identified additional information necessary to complete the review.
In order to complete the safety evaluation within the agreed upon date, can you respond to the attached RAI by December 2, 2013.
- Thanks,
Hearing Identifier:
NRR_PMDA Email Number:
869 Mail Envelope Properties (Karen.Cotton@nrc.gov20131002113100)
Subject:
RAI for Surry Power Station Unit 1, Relief Request P-5 (TAC No. MF1825)
Sent Date:
10/2/2013 11:31:27 AM Received Date:
10/2/2013 11:31:00 AM From:
Cotton, Karen Created By:
Karen.Cotton@nrc.gov Recipients:
"Gary D Miller" <gary.d.miller@dom.com>
Tracking Status: None "Candee Lovett (candee.lovett@dom.com)" <candee.lovett@dom.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 747 10/2/2013 11:31:00 AM Surry Unit 1 RR P-5 RAI1.docx 25478 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION (RAI)
VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
SURRY POWER STATION UNIT NO. 1 ALTERNATIVE REQUEST P-5 DOCKET NUMBER 50-280 (TAC NO. MF1825)
Reference:
Letter from N. L. Lane of Virginia Electric Power Company to NRC, Virginia Electric and Power Company, Surry Power Station Units 1 and 2, Inservice Testing Program for Pumps and Valves, Fifth Ten Year Interval Update and Associated Relief Requests dated May 1, 2013 (Agencywide Document Access and Management System (ADAMS) Accession Number ML13128A104).
RAI P-5-1 As part of the justification for relief from the requirements of ISTB-3300(e)(1), Reference Values, alternative request P-5 for Surry Unit 1, under Surry Predictive Maintenance Program, states that additional testing such as vibration monitoring and analysis beyond that required by ISTB, and oil sampling and analysis will be performed. In order to determine if the additional testing will provide an acceptable level of quality and safety in accordance with 10 CFR 50.55a(a)(3)(i), the staff requests the following information on the additional testing performed under the Surry Predictive Maintenance Program for containment spray pumps 1-CS-P-1A and 1-CS-P-1B:
- 1. Is the additional vibration testing performed under the Surry Predictive Maintenance Program in accordance with the Group A Test requirements in OM Code Section ISTB, Table ISTB-5121-1, Centrifugal Pump Test Acceptance Criteria, with regard to acceptable range, alert range, and required action range? If not, please justify how the additional vibration monitoring and analysis is utilized to determine if pump performance is trending toward a degraded state.
- 2. What is the sampling frequency of the oil sampling and analysis for containment spray pumps 1-CS-P-1A and 1-CS-P-1B?
- 3. The statement such as vibration monitoring... referenced above implies that additional techniques may be used for predictive maintenance on containment spray pumps 1-CS-P-1A and 1-CS-P-1B. For the containment spray pumps, what additional techniques, if any, are used to monitor potential degradation of the pump?