ML042800320
| ML042800320 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 10/25/2004 |
| From: | Colburn T NRC/NRR/DLPM/LPD1 |
| To: | Pearce L FirstEnergy Nuclear Operating Co |
| Colburn T, NRR/DLPM, 415-1402 | |
| References | |
| TAC MC3894 | |
| Download: ML042800320 (6) | |
Text
October 25, 2004 Mr. L. William Pearce Vice President FirstEnergy Nuclear Operating Company Beaver Valley Power Station Post Office Box 4 Shippingport, PA 15077
SUBJECT:
BEAVER VALLEY POWER STATION, UNIT NO. 2 (BVPS-2) - REQUEST FOR ADDITIONAL INFORMATION (RAI) - ELIMINATION OF RESPONSE TIME TESTING (TAC NO. MC3894)
Dear Mr. Pearce:
By letter dated July 23, 2004, FirstEnergy Nuclear Operating Company submitted a request to eliminate certain periodic pressure sensor and protection channel response-time tests from the BVPS-2 Technical Specification surveillance requirements. The Nuclear Regulatory Commission staff has determined that the information contained in the enclosed RAI will be needed for the staff to complete its review. These questions were previously e-mailed to your staff on September 28, 2004, in draft form, for discussion during a September 29, 2004, conference call.
As discussed with your staff, we request your response within 45 days of receipt of this letter. If you have any questions, please contact me at 301-415-1402.
Sincerely,
/RA/
Timothy G. Colburn, Senior Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-412
Enclosure:
RAI cc w/encl: See next page
- Input received. No substantive changes made.
OFFICE PDI-1/PM EEIB/SC PDI-1/SC NAME TColburn EMarinos*
RLaufer DATE 10/20/04 09/22/04 10/21/04
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION (RAI)
BEAVER VALLEY POWER STATION, UNIT NO. 2 (BVPS-2)
ELIMINATION OF PERIODIC PRESSURE SENSOR AND PROTECTION CHANNEL RESPONSE-TIME TESTS DOCKET NO. 50-412 By letter dated July 23, 2004, FirstEnergy Nuclear Operating Company (the licensee) requested an amendment to the BVPS - 2 Technical Specifications (TSs) to allow the elimination of certain periodic pressure sensor and protection channel response-time tests. The Nuclear Regulatory Commission (NRC) staff has determined that the additional information below is needed to complete its review of the licensees application.
1.
Note 1 in Table 1 stated: Allocated sensor response times for the ITT Barton 752, 763 (763A) and 764 pressure sensors specified in Table 1 are based on historical records (method 1) of acceptable response time testing (RTT) obtained from the BVPS-2 RTT program. The sensor response times for all sensors except the containment pressure sensors were obtained using the Analysis and Measurement Services (AMS) noise analysis method. The containment pressure sensor response times were obtained using a hydraulic RTT method. The historical response time data used as the bases for the allocated response times were the AMS sensor response time measurement tests performed on October 1998, August 2000, January 2002 and August 2003 and the containment pressure sensors hydraulic RTT performed between February 1995 and August 2003. The highest response time measured for the ITT Barton sensors were as follows: Barton 752 - 160 [milli-seconds (ms)]; Barton 763 (763A) - 370 ms; Barton 764
- 380 ms.
Since the most conservative value may not reflect the 95/95 confidence level if the number of total previous tests is small, please submit the actual values obtained in previous response time measurement tests.
2.
On page 10 of Enclosure 1 of the submittal, it is stated: Some versions of 7300 cards installed (or planned to be installed) in BVPS Unit 2 are cards that have been re-designed since the original FEMA [failure effects and modes analysis] was performed for WCAP-14036-P-A (see Table 1, Note 3). These newer cards have been evaluated by Westinghouse for RTT elimination. The results of this evaluation for the newer NLP, NSA and NAL cards concluded that the differences in the re-designed cards are insignificant with respect to the conclusions of the original FEMA and that the FEMA and bounding response times documented in WCAP-14036-P-A, Revision 1 is applicable to these newer cards. A new FMEA was performed for the re-designed NRA cards. This FEMA was based on the original NRA FEMA methodology used for WCAP-14036-P-A, Revision 1. The Westinghouse evaluation concluded that the newer NRA cards meet the bounding response times listed in WCAP-14036-P-A, Revision 1".
Please provide the new FEMA showing that the cards actually installed or planned for installation are bounded by the original FEMA, WCAP-14036, and the NRC staffs related Safety Evaluation.
Beaver Valley Power Station, Unit Nos. 1 and 2 Mary OReilly, Attorney FirstEnergy Nuclear Operating Company FirstEnergy Corporation 76 South Main Street Akron, OH 44308 FirstEnergy Nuclear Operating Company Regulatory Affairs/Performance Improvement Larry R. Freeland, Manager Beaver Valley Power Station Post Office Box 4, BV-A Shippingport, PA 15077 Commissioner James R. Lewis West Virginia Division of Labor 749-B, Building No. 6 Capitol Complex Charleston, WV 25305 Director, Utilities Department Public Utilities Commission 180 East Broad Street Columbus, OH 43266-0573 Director, Pennsylvania Emergency Management Agency 2605 Interstate Dr.
Harrisburg, PA 17110-9364 Ohio EPA-DERR ATTN: Zack A. Clayton Post Office Box 1049 Columbus, OH 43266-0149 Dr. Judith Johnsrud National Energy Committee Sierra Club 433 Orlando Avenue State College, PA 16803 J. H. Lash, Plant Manager (BV-IPAB)
FirstEnergy Nuclear Operating Company Beaver Valley Power Station Post Office Box 4 Shippingport, PA 15077 Rich Janati, Chief Division of Nuclear Safety Bureau of Radiation Protection Deparment of Environmental Protection Rachel Carson State Office Building P.O. Box 8469 Harrisburg, PA 17105-8469 Mayor of the Borough of Shippingport P O Box 3 Shippingport, PA 15077 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector U.S. Nuclear Regulatory Commission Post Office Box 298 Shippingport, PA 15077 FirstEnergy Nuclear Operating Company Beaver Valley Power Station ATTN: M. P. Pearson, Director Services and Projects (BV-IPAB)
Post Office Box 4 Shippingport, PA 15077 FirstEnergy Nuclear Operating Company Beaver Valley Power Station Mr. B. F. Sepelak Post Office Box 4, BV-A Shippingport, PA 15077