ML20202C251

Forwards Request for Addl Info Re Util 980331 Response to GL 96-05, Periodic Verification of Design-Basis Capability of Safety-Related Movs, for Catawba Nuclear Station. Response Requested within 60 Days of Date of Ltr

ML20202C251
Person / Time
Site:	Catawba
Issue date:	01/27/1999
From:	Tam P NRC (Affiliation Not Assigned)
To:	Gordon Peterson DUKE POWER CO.
References
GL-96-05, GL-96-5, TAC-M97030, TAC-M97031, NUDOCS 9901290353
Download: ML20202C251 (5)

Text

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Mr. G. R. P:t:rson January 27, 1999 Sits Vice Pr:sident

• f 6atawb3 Nucinr Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745-9635

SUBJECT:

CATAWBA NUCLEAR STATION -- REQUEST FOR ADDITIONAL INFORMATION ON YOUR RESPONSE TO GENERIC LETTER 96-05 REGARDING SAFETY-RELATED MOTOR-OPERATED VALVES (TAC NOS. M97030 AND M97031)

Dear Mr. Peterson:

On September 18,1996, the staff 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 periode 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 March 31,1998, Duke Energy Corporation (Duke) submitted an updated response to GL 96-05 indicating its intent to implement the provisions of a Joint Owners Group (JOG)

Program on MOV Periodic Verification at Catawba. The NRC staff has encouraged licensees to participate in the industry-wide JOG program to provide a benefit in reactor safety by sharing expertise and information on MOV performance and to increase the efficiency of GL 96-05 activities at nuclear plants. Licensee participation in the JOG program also minimizes  !

the amount of information necessary for the NRC staff to review each licensee's response to GL 96-05. As a result, the NRC staff requires only limited information to complete its GL 96-05 review for Catawba.

Enclosed is a request for additional information (RAI) regarding the GL 96-05 program at Catawba. I have discussed this RAI with Mr. Skip Copp of your staff, and he agreed that Duke would provide a response within 60 days of the date of this letter.

Sincerely, I original signed by:

Peter S. Tam, Senior Project Manager 1 Project Directorate 11-2 l

Division of Reactor Projects - 1/11  !

Office of Nuclear Reactor Regulation l Docket Nos. 50-413 and 50-414 DISTRIBUTION

Enclosure:

Request for Additional Docket File JZwolinski information PUBLIC LPlisco,Rll

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/ January 27, 1999 I l

1 Mr. G. R. Peterson  !

Site Vice President I Catawba Nuclear Station Duke Energy Corporation 4800 Concord Road York, South Carolina 29745-9635

SUBJECT:

CATAWBA NUCLEAR STATION -- REQUEST FOR ADDITIONAL INFORMATION ON YOUR RESPONSE TO GENERIC LETTER 96-05 REGARDING SAFETY-RELATED MOTOR-OPERATED VALVES l (TAC NOS. M97030 AND M97031) ,

1

Dear Mr. Peterson:

l On September 18,1996, the staff issued Generic Letter (GL) 96-05, " Periodic Verification of Design-Basis Capability of Safety Related Motor-Operated Valves," to request that nuclear i 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. 1 On March 31,1998, Duke Energy Corporation (DtAe) submitted an updated rasponse to .

GL 96-05 indicating its intent to implement the provisions of a Joint Owners Group (JOG)

Program on MOV Periodic Verification at Catawba. The NRC staff has encouraged licensees to participate in the industry-wide JOG program to provide a benefit in reacter safety by sharing expertise and information on MOV performance and to increase the efficiency of GL 96-05 activities at nuclear plants. Licensee participation in the JOG program also minimizes the amount of information necessary for the NRC staff to review each licensee's response to GL 96-05. As a result, the NRC staff requires only limited information to complete its GL 96-05 review for Catawba.

Enclosed is a request for additional information (RAI) regarding the GL 96-05 program at Catawba. I have discussed this RAI with Mr. Skip Copp of your staff, and he agreed that Duke would provide a response within 60 days of the date of this letter.

Sincerely, _

M Peter S. Tam, Senior Project Manager Project Directorate 11-2

Division of Reactor Projects - t/II l Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414

Enclosure:

Request for Additional Information l

cc w/ encl: See next page

. e d

Catawba Nuclear Station cc:

Mr. Gary Gilbert North Carolina Electric Membership {

Regulatory Compliance Manager Corporation Duke Energy Corporation P. O. Box 27306 4800 Concord Road Raleigh, North Carolina 2761I York, South Carolina 29745 Senior Resident inspector l Ms. Lisa F. Vaughn U.S. Nuclear Regulatory Commission 1 Legal Department (PBOSE) 4830 Concord Road Duke Energy Corporation York, South Carolina 29745 422 South Church Streat I Charlotte, North Carolina 28201-1006 Regional Administrator, Region ll l U. S. Nuclear Regulatory Commission j J. Michael McGarry, Ill, Esquire Atlanta Federal Center  ;

Winston and Strawn 61 Forsyth Street, S.W., Suite 23T85 j 1400 L Street, NW Atlanta, Georgia 30303 i Washington, DC 20005 Virgil R. Autry, Director North Carolina Municipal Power Division of Radioactive Waste Management Agency Number 1 Bureau of Land and Waste Management 1427 Meadowwood Boulevard Department of Health and Environmental j P. O. Box 29513 Control Raleigh, North Carolina 27626 2600 Bull Street Columbia, South Carolina 29201-1708 County Manager of York County York County Courthouse L. A. Keller York, South Carolina 29745 Manager- Nuclear Regulatory i Licensing '

Piedmont Municipal Power Agency Duke Energy Corporation 121 Village Drive 526 South Church Street j Greer, South Carolina 29651 Charlotte, North Carolina 28201-1006 '

Ms. Karen E. Long Saluda River Electric .

Assistant Attomey General P. O. Box 929 l North Carolina Department of Justice Laurens, South Carolina 29360 P. O. Box 629 Raleigh, North Carolina 27602 Mr. Steven P. Shaver Senior Sales Engineer Elaine Wathen, Lead REP Planner Westinghouse Electric Company Division of Emergency Management 5929 Camegie Blvd.

116 West Jones Street Suite 500 Raleigh, North Carolina 27603-1335 Charlotte, North Carolina 28209

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i REQUEST FOR ADDITIONAL INFORMATION RESPONSE TO GENERIC LETTER 96-05 CATAWBA NUCLEAR STATION, UNITS 1 AND 2

Reference:

Letter, M. S. Tuckman to NRC, March 31,1998

1. In NRC Inspection Report No. 50-413 and 414/97-03, the staff closed its review of the motor-operated valve (MOV) program implemented at Catawba Nuclear Station (Catawba) in response to Generic Letter (GL) 89-10, " Safety-Related Motor-Operated Valve Testing and Surveillance." In the inspection report, the NRC staff discussed certain aspects of the licensee's MOV program to be addressed over the long term. For l example, the inspectors noted that (1) the licensee initiated en action to address the

! Anchor / Darling double-disc gate valve model conditions spwiiied in the NRC's safety l evaluation of the Electric Power Research Institute Performance Prediction Model; (2)

.mdifications were planned to increase the margins for valves 1NC31 and 2NC33; (3) additional Borg Warner gate valve testing was scheduled for the spring 1997 outage to l resolve high valve factor concems; (4) modifications were planned to increase the i margins for valves in Group WL-01 during the spring 1997 outage; (5) the licensee

initiated an action plan to improve the valve factor basis for several gate valve and globe valve groups; and (6) valve factor data scatter would be reviewed to ensure that thrust calculations use appropriate values. Please provide a summary status of the actions taken to address the specific long-term aspects of the MOV program at Catawba noted in the inspection report.

l 2. Please briefly describe your plans for the use of test data from the motor control center (MCC) including (1) correlation of new MCC test data to existing direct force

! measurements; (2) interpretation of changes in MCC test data to enanges in MOV thrust l and torque performance; (3) consideration of system accuracies and sensitivities to MOV degradation for both output and operating performance requirements; and (4) validation of MOV operability using MCC testing.

3. 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's safety evaluation dated October 30,1997, on the JOG program, the staff specified thet licensees are responsible for addressing the thrust or torque delivered by the MOV motor actuator and its potential degradation. Please describe the plan at Catawba for ensuring adequate ac and de MOV motor actuator output capability, including consideration of recent guidance in Limitorque Technical Update 98-01 and its

. Supplement 1.

l Enclosure f

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I t . . _ . . -

! G o l Catawba Nuclear Station I cc:

Mr. T. Richard Puryear l Owners Group (NCEMC)

{

! Duke Energy Corporation / ~

l 4800 Concord Road i York, South Carolina 29745 l

Richard M. Fry, Director I Division of Radiation Protection North Carolina Department of Environment, Health, and Natural Resources l 3825 Barrett Dnve l Raleigh, North Carolina 27609-7721 i

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