ML14183A883
| ML14183A883 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 12/29/1998 |
| From: | Subbaratnam R NRC (Affiliation Not Assigned) |
| To: | Young D CAROLINA POWER & LIGHT CO. |
| References | |
| GL-96-05, GL-96-5, TAC-M97094, NUDOCS 9901050150 | |
| Download: ML14183A883 (5) | |
Text
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Mr. D. E. Young, Vice Pr Oent Denber 29, 1998 Carolina Power & Light Company
'H.'B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550
SUBJECT:
GENERIC LETTER 96-05, "PERIODIC VERIFICATION OF DESIGN BASIS CAPABILITY OF SAFETY RELATED MOTOR-OPERATED VALVES" REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 96-05 PROGRAM AT THE H.B. ROBINSON STEAM ELECTRIC PLANT UNIT 2 (TAC NO. M97094)
Dear Mr. Young:
On September 18, 1996, the U.S. Nuclear Regulatory Commission issued Generic Letter (GL) 96-05, "Periodic Verification of Design-Basis Capability of Safety-Related Motor-Operated Valves," to request that nuclear power plant licensees establish a program, or ensure the effectiveness of the current program, to verify on a periodic basis that safety-related motor operated valves (MOVs) continue to be capable of performing their safety functions within the current licensing basis of the facility.
On April 3, 1998, you submitted an updated response to GL 96-05 indicating your intent to implement the provisions of a Joint Owners Group Program on MOV Periodic Verification.
Attached is a request for additional information regarding the GL 96-05 program at Robinson. It is requested that your response be provided within 60 days of receipt of this letter.
Sincerely, Original signed by:
Ram Subbaratnam, Project Manager Project Directorate 11-3 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation Docket No. 50-261
Enclosure:
Request for Additional Information cc w/encl: See next page DISTRIBUTION:
Docket File LPlisco, Rll DTeravo, DE/EMEB PUBLIC PDII-3 Reading OGC JZwolinski ACRS TScarbrough, DE/EMEB DOCUMENT NAME:P:\\97904RAl.WPD To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE PM:PD 11-3 E
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Official Record C6py 9901050150 981229 PDR ADOCK 05000261 P
Mr. D. E. Young, Vice P dent
,1998 Carofina Power & Light Company H. B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550
SUBJECT:
GENERIC LETTER 96-05, "PERIODIC VERIFICATION OF DESIGN BASIS CAPABILITY OF SAFETY RELATED MOTOR-OPERATED VALVES" REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 96-05 PROGRAM AT THE H.B. ROBINSON STEAM ELECTRIC PLANT UNIT 2 (TAC NO. M97094)
Dear Mr. Young:
On September 18, 1996, the U.S. Nuclear Regulatory Commission issued Generic Letter (GL) 96-05, "Periodic Verification of Design-Basis Capability of Safety-Related Motor-Operated Valves," to request that nuclear power plant licensees establish a program, or ensure the effectiveness of the current program, to verify on a periodic basis that safety-related motor operated valves (MOVs) continue to be capable of performing their safety functions within the current licensing basis of the facility.
On April 3, 1998, you submitted an updated response to GL 96-05 indicating your intent to implement the provisions of a Joint Owners Group Program on MOV Periodic Verification.
Attached is a request for additional information regarding the GL 96-05 program at Robinson. It is requested that your response be provided within 60 days of receipt of this letter.
Sincerely, Original signed by:
Ram Subbaratnam, Project Manager Project Directorate 11-3 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation Docket No. 50-261
Enclosure:
Request for Additional Information cc w/encl: See next page DISTRIBUTION:
Docket File LPlisco, RII DTeravo, DE/EMEB
-PUBLIC
- - PDII-3 Reading
-- OGC JZwolinski ACRS TScarbrough, DE/EMEB DOCUMENT NAME:P:\\97904RAI.WPD To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N"= No copy OFFICE PM:PD II-3 E LA:PD II-1 D:PD II-3 c
NAME RSubbaratnam EDunnin FHebdn
\\DATE Oc Record Copy Official Record C6py
UNITED STATES o
NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Decenber 29, 1998 Mr. D. E. Young, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant, Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550
SUBJECT:
GENERIC LETTER 96-05, "PERIODIC VERIFICATION OF DESIGN BASIS CAPABILITY OF SAFETY RELATED MOTOR-OPERATED VALVES" REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 96-05 PROGRAM AT THE H.B. ROBINSON STEAM ELECTRIC PLANT UNIT 2 (TAC NO. M97094)
Dear Mr. Young:
On September 18, 1996, the U.S. Nuclear Regulatory Commission issued Generic Letter (GL) 96-05, "Periodic Verification of Design-Basis Capability of Safety-Related Motor-Operated Valves," to request that nuclear power plant licensees establish a program, or ensure the effectiveness of the current program, to verify on a periodic basis that safety-related motor operated valves (MOVs) continue to be capable of performing their safety functions within the current licensing basis of the facility.
On April 3, 1998, you submitted an updated response to GL 96-05 indicating your intent to implement the provisions of a Joint Owners Group Program on MOV Periodic Verification.
Attached is a request for additional information regarding the GL 96-05 program at Robinson. It is requested that your response be provided within 60 days of receipt of this letter.
Sincerely, Ram Subbaratnam, Project Manager Project Directorate 11-3 Division of Reactor Projects III Office of Nuclear Reactor Regulation Docket No. 50-261
Enclosure:
Request for Additional Information cc w/encl: See next page
Mr. D. E. Young H. B. Robinson Steam Electric Carolina Power & Light Company Plant, Unit No. 2 cc:
Mr. William D. Johnson Mr. Mel Fry, Director Vice President and Senior Counsel N.C. Department of Environment Carolina Power & Light Company and Natural Resources Post Office Box 1551 Division of Radiation Protection Raleigh, North Carolina 27602 3825 Barrett Dr.
Raleigh, North Carolina 27609-7721 Ms. Karen E. Long Assistant Attorney General Mr. Robert P. Gruber State of North Carolina Executive Director Post Office Box 629 Public Staff - NCUC Raleigh, North Carolina 27602 Post Office Box 29520 Raleigh, North Carolina 27626-0520 U.S. Nuclear Regulatory Commission Resident Inspector's Office Mr. Virgil R. Autry, Director H. B. Robinson Steam Electric Plant South Carolina Department of Health 2112 Old Camden Road Bureau of Land & Waste Management Hartsville, South Carolina 29550 Division of Radioactive Waste Management 2600 Bull Street Regional Administrator, Region II Columbia, South Carolina 29201 U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Ms. D. B. Alexander Atlanta, Georgia 30303 Manager Performance Evaluation and Mr. J. W. Moyer Regulatory Affairs CPB 9 Director of Site Operations Carolina Power & Light Company Carolina Power & Light Company Post Office Box 1551 H. B. Robinson Steam Electric Plant Raleigh, North Carolina 27602-1551 Unit No. 2 3581 West Entrance Road Hartsville, South Carolina 29550 Chief, Reactor Projects Branch 4 U. S. Nuclear Regulatory Commission Public Service Commission Atlanta Federal Center State of South Carolina 61 Forsyth St., SW, Suite 23T85 Post Office Drawer 11649 Atlanta, Georgia 30303 Columbia, South Carolina 29211 Mr. T. M. Wilkerson Manager - Regulatory Affairs Mr. H. K. Chernoff Carolina Power & Light-Company Supervisor, Licensing/Regulatory Programs H. B. Robinson Steam Electric Plant, Carolina Power & Light Company Unit No. 2 H. B. Robinson Steam Electric Plant, 3581 West Entrance Road Unit No. 2 Hartsville, South Carolina 29550-0790 3581 West Entrance Road Hartsville, South Carolina 29550
REQUEST FOR ADDITIONAL INFORMATION ON RESPONSE OF H. B. ROBINSON STEAM ELECTRIC PLANT TO GENERIC LETTER 96-05
- 1.
In U.S. Nuclear Regulatory Commission (NRC) Inspection Report No. 50-261/98-01, the NRC staff closed its review of the motor-operated valve (MOV) program implemented at the H. B. Robinson Steam Electric Plant, Unit 2 (Robinson) in response to Generic Letter (GL) 89-10, "Safety-Related Motor-Operated Valve Testing and Surveillance,"
based on the results of the inspection and the licensee's plan to resolve several outstanding MOV issues as described in a letter dated February 20, 1998. In the inspection report, the NRC staff noted certain aspects of the licensee's MOV program that would be addressed over the long-term. For example, the licensee indicated that it would (1) participate in industry efforts to obtain applicable valve factors for Copes Vulcan parallel double-disc gate valves; (2) validate the selected valve factors for the pressurizer power-operated relief valve block valves; (3) gather additional industry valve factor information for globe valves and Anchor/Darling flex-wedge gate valves; and (4) increase the actuator output capability for valves RHR-744A/B, CC-749A/B, FCV 626, FW-V2-6B, and CVC-381 during Refueling Outage (RO) 18. In addition to the NRC inspection report items, the licensee committed in its February 20, 1998, letter to take specific actions, including (1) performance of additional testing during RO-1 8 to address stem friction coefficient issues; (2) evaluation of hydrodynamic torque requirements for butterfly valves V6-16A/B/C; (3) revision of site procedures to require diagnostic verification of limit switch settings for position controlled MOVs, and (4) review of past diagnostic tests to verify that position controlled MOVs were closing properly. In a letter dated June 25, 1998, the licensee provided the status of those four action items. The licensee should discuss any further information on the status of specific long-term aspects of the MOV program at Robinson that were noted in the NRC inspection report and its letter dated June 25, 1998.
- 2.
The Joint Owners Group (JOG) program focuses on the potential age-related increase in the thrust or torque required to operate valves under their design-basis conditions. In the NRC Safety Evaluation dated October 30, 1997, on the JOG program, the NRC staff specified that licensees are responsible for addressing the thrust or torque delivered by the MOV motor actuator and its potential degradation. The licensee should describe the plan at Robinson for ensuring adequate ac and dc MOV motor actuator output capability, including consideration of recent guidance in Limitorque Technical Update 98-01 and its Supplement 1.
ENCLOSURE