ML14178A694
| ML14178A694 | |
| Person / Time | |
|---|---|
| Site: | Harris, Brunswick, Robinson  |
| Issue date: | 01/28/1994 |
| From: | Bajwa S Office of Nuclear Reactor Regulation |
| To: | Orser W CAROLINA POWER & LIGHT CO. |
| References | |
| GL-89-10, TAC-M87924, TAC-M87925, TAC-M87954, TAC-M87995, NUDOCS 9402100084 | |
| Download: ML14178A694 (5) | |
Text
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- PtREG, 0
0 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 January 28, 1994 Docket Nos. 50-325, 50-324 50-261, 50-400 Mr. W. S. Orser, Executive Vice President Nuclear Generation Carolina Power & Light Company Post Office Box 1551 Raleigh, North Carolina 27602
SUBJECT:
GENERIC LETTER 89-10, SUPPLEMENT 5, "INACCURACY OF MOTOR-OPERATED VALVE DIAGNOSTIC EQUIPMENT" - BRUNSWICK STEAM ELECTRIC PLANT, UNITS 1 AND 2, H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2, AND SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 (TAC NOS. M87924, M87925, M87995 and M87954)
On June 28, 1993, the NRC staff issued Supplement 5, "Inaccuracy of Motor Operated Valve Diagnostic Equipment," to Generic Letter (GL) 89-10, "Safety Related Motor-Operated Valve Testing and Surveillance," requesting nuclear power plant licensees and construction permit holders (1) to re-examine their motor-operated valve (MOV) programs and to identify measures taken to account for uncertainties in properly setting valve operating thrust to ensure operability, and (2) to evaluate the schedule necessary to consider the new information on MOV diagnostic equipment inaccuracy and to take appropriate action in response to that information. Within 90 days of receipt of Supplement 5 to GL 89-10, the licensees were required (1) to notify the NRC staff of the diagnostic equipment used to confirm the proper size, or to establish settings for safety-related MOVs, and (2) to report whether they had taken actions or planned to take actions (including schedule) to address the new information on the accuracy of MOV diagnostic equipment.
The staff has reviewed the responses and has found that, for the most part, the licensees and permit holders have been actively addressing the uncertainties regarding the accuracy of MOV diagnostic equipment. The increased inaccuracy of MOV diagnostic equipment can raise questions regarding (1) the adequacy of torque switch settings to provide sufficient thrust while not exceeding thrust or torque structural limits and (2) the capability of actuator motors at current settings. In their responses, the licensees and permit holders indicated that many MOVs had the potential for underthrusting or overthrusting as a result of the higher than expected inaccuracy of MOV diagnostic equipment. Consequently, some licensees reported that MOVs have been retested, adjusted, or modified to resolve the concerns regarding the accuracy of MOV diagnostic equipment.
In your September 28, 1993, response to Supplement 5, you stated that for the Brunswick Steam Electric Plant, Units 1 and 2 (Brunswick), H. B. Robinson Steam Electric Plant, Unit No. 2 (Robinson), and Shearon Harris Nuclear Power Plant, Unit 1 (Harris), you use Liberty Technologies' VOTES equipment for MOV diagnostic testing. Your response also stated that all data for these facilities has been evaluated using the VOTES 2.3 software. Based on this 9402100084 940128 FO PDR ADOCK 05000261 P
PDRC 35 /4 C.1)35CR
Mr. W. S. Orser
- 2 review, the staff finds your response acceptable and during a future inspection will discuss your resolution of the MOC diagnostic equipment accuracy issue. Particularly, the staff will discuss your evaluation of MOVs set up with previous versions of the VOTES software. This completes the staff's effort on TAC NOS. M87924, M87925, M87995 and M87954.
If you have any questions regarding this issue, please contact Patrick D.
Milano at (301) 504-1457 with questions regarding Brunswick, Brenda L.
Mozafari at (301) 504-2020 with questions regarding Robinson, or N. B. Le at (301) 504-1458 with questions regarding Shearon Harris.
Sincerely, S. Singh Bajwa, Director Project Directorate II-1 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation cc:
See next page
cc:
Carolina Power & Light Company Mr. C. R. Dietz Mr. H. Ray Starling Vice President Manager -
Legal Department Carolina Power & Light Company Carolina Power & Light Company H. B. Robinson Steam Electric Plant Post Office Box 1551 Post Office Box 790 Raleigh, North Carolina 27602 Hartsville, South Carolina 29550 Karen E. Long Mr. Max Batavia, Chief Assistant Attorney General Bureau of Radiological Health State of North Carolina South Carolina Department of Health Post Office Box 629 and Environmental Control Raleigh, North Carolina 27602 2600 Bull Street Columbia, South Carolina 29201 U. S. Nuclear Regulatory Commission Resident Inspector's Office Mr. H. W. Habermeyer, Jr.
H. B. Robinson Steam Electric Plant Vice President Route 5, Box 413 Nuclear Services Department Hartsville, South Carolina 29551 Carolina Power & Light Company Post Office Box 1551 - MCode OHS7 Regional Administrator, Region II Raleigh, North Carolina 27602 U. S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Ste. 2900 Resident Inspector/Harris NPS Atlanta, Georgia 30323 Shearon Harris Nuclear Power Plant Nuclear Regulatory Commission Mr. Marc P. Pearson Route 1, Box 315B Plant Manager New Hill, North Carolina 27562 Carolina Power & Light Company H. B. Robinson Steam Electric Plant Mr. W. R. Robinson Post Office Box 790 Vice President -
Harris Plant Hartsville, South Carolina 29550 Carolina Power & Light Company Shearon Harris Nuclear Power Plant Mr. Dayne H. Brown, Director Post Office Box 165 Department of Environmental, New Hill, North Carolina 27562 Health and Natural Resources Division of Radiation Protection Mr. R. A. Anderson, Vice President Post Office Box 27687 Carolina Power & Light Company Raleigh, North Carolina 27611-7687 Brunswick Steam Electric Plant Post Office Box 10429 Mr. Robert P. Gruber Southport, North Carolina 28461 Executive Director Public Staff - NCUC Mr. Donald Warren, Chairman Post Office Box 29520 Brunswick County Board Raleigh, North Carolina 27626-0520 of Commissioners Post Office Box 2571.
Resident Inspector Shallotte, North Carolina 28459 U. S. Nuclear Regulatory Commission Brunswick Steam Electric Plant Star Route 1, Post Office Box 208 Southport, North Carolina 28461
Mr. J. M. Brown Plant Manager - Unit 1 Carolina Power & Light Company Brunswick Steam Electric Plant Post Office Box 10429 Southport, North Carolina 28461 Mr. C. C. Warren Plant Manager - Unit 2 Carolina Power & Light Company Brunswick Steam Electric Plant Post Office Box 10429 Southport, North Carolina 28461 Admiral Kinnaird R. McKee 214 South Morris Street Oxford, Maryland 21654 Mr. Robert D. Martin 3382 Sean Way Lawrenceville, Georgia 30244 Mr. Mark S. Calvert Associate General Counsel Carolina Power & Light Company Post Office Box 1551 Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649 Columbia, South Carolina 29211 Mr. Norman R. Holden, Mayor City of Southport 212 Frink Drive Southport, North Carolina 28461
January 28, 1994 Mr. W. S. Orser
- 2 review, the staff finds your response acceptable and during a future inspection will discuss your resolution of the MOC diagnostic equipment accuracy issue.
Particularly, the staff will discuss your evaluation of MOVs set up with previous versions of the VOTES software. This completes the staff's effort on TAC NOS. M87924, M87925, M87995 and M87954.
If you have any questions regarding this issue, please contact Patrick D.
Milano at (301) 504-1457 with questions regarding Brunswick, Brenda L.
Mozafari at (301) 504-2020 with questions regarding Robinson, or N. B. Le at (301) 504-1458 with questions regarding Shearon Harris.
Sincerely, Original Signed by:
S. Singh Bajwa, Director Project Directorate FI-i Division of Reactor Projects -
I/IF Office of Nuclear Reactor Regulation cc:
See next page DISTRIBUTION
,Docket File E. Merschoff, Region II NRC & Local PDRs A. Hansen PD# II-1 Reading File T. Scarbrough S. Varga G. Lainas S. Bajwa P. Anderson P. Milano B. Mozafari N. Le OGC ACRS (10)
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