ML20202E386

Refers to GL 96-05 Issued on 960918 & DPC 980331 Updated Response to GL 96-05 Indicating Intent to Implement Provisions of JOG Program on MOV Periodic Verfication at Mcguire.Rai Re JOG Program McGuire Encl

ML20202E386
Person / Time
Site:	Mcguire, McGuire
Issue date:	01/28/1999
From:	Rinaldi F NRC (Affiliation Not Assigned)
To:	Barron H DUKE POWER CO.
References
GL-96-05, GL-96-5, TAC-M97065, TAC-M97066, NUDOCS 9902020405
Download: ML20202E386 (4)

Text

Mr. H. B. B rron January 28, 1999 j Vice Prr.sident, McGuirs Sito i

, , DukJ Energy Corport. tion

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12700 Hagers Ferry Road Huntersville, NC 28078-8985

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 96 MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 -

(TAC NOS. M97065 AND M97066) 1

Dear Mr. Barron:

On September 18,1996, the NRC 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 erisure the effectiveness of the current program, l 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 March 31,1998, Duke Energy Corporation (licensee for McGuire Nuclear Station, Units 1 and 2) submitted an updated response to GL 96-05 indicating its intent to implement the i provisions of a Joint Owners Group (JOG) Program on MOV Periodic Verifica3on at McGuire.

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 informatico ta complete its GL 96-05 review for McGuire.

The staff requests a response to the enclosed request for additional information by March 20, 1999. This date has been discussed and agreed upon with Mr. M. Cash of your staff. The staff appreciates the efforts expended with respect to this matter.

Sincerely, original signed by:

Frank Rinaldi, Project Manager Project Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 DISTRIBUTION Docket File OGC 1

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UNITED STATES NUCLEAR REGULATORY COMMISSION l

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o e WASHINGTON, D.C. 20665-0001 January 28, 1999

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l Mr. H. B. Barron j Vice President, McGuire Site Duke Energy Corporation 12700 Hagers Ferry Road  :

Huntersville, NC 28078-8985

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING GENERIC LETTER 96 MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 -

(TAC NOS. M97065 AND M97066)

Dear Mr. Barron:

On September 18,1996, the NRC issued Generic Letter (GL) 96-05, " Periodic Verification of l Design-Basis Capability of Safety-Related Motor-Operated Valves," to request that nuclear l power plant licensees establish a program, or ensure the effectiveness of the current program, l 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 March 31,1998, Duke Energy Corporation (licensee for McGuire Nuclear Station, Units 1 and 2) 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 McGuire.

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 l and to increase the efficiency of GL 96-05 activities at nuclear plants. Licensee participation in the JOG program also minimizes the amount ofinformation necessary for the NRC staff to I 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 McGuire.

l The staff requests a response to the enclosed request for additionalinformation by March 20, 1999. This date has been discussed and agreed upon with Mr. M. Cash of your staff. The staff appreciates the efforts expended with respect to this matter.

Sincerely, p /nW-Frank Rinaldi, Project Manager Project Directorate 11-2 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370

Enclosure:

Request for Additional Information cc w/ encl: See next page

a a McGuire Nuclear Station l

l cc: I Ms. Lisa F. Vaughn Ms. Karen E. Long l Legal Department (PBOSE) Assistant Attomey General l

Duke Energy Corporation North Carolina Department of l 422 South Church Street Justice Charlotte, North Carolina 28201-1006 P. O. Box 629 Raleigh, North Carolina 27602 County Manager of Mecklenburg County L. A. Keller 720 East Fourth Street Manager- Nuclear Regulatory l Charlotte, North Carolina 28202 Licensing Duke Energy Corporation Michael T. Cash 526 South Church Street Regulatory Compliance Manager Charlotte, North Carolina 28201-1006 Duke Energy Corporation McGuire Nuclear Site Regional Administrator, Region 11 12700 Hagers Ferry Road U.S. Nuclear Regulatory Commission Huntersville, Ncrth Carolina 28078 Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 J. Michael McGarry, Ill, Esquire Atlanta, Georgia 30303 Winston and Strawn 1400 L Street, NW. Elaine Wathen, Lead REP Planner Washington, DC 20005 Division of Emergency Management 116 West Jones Street Senior Resident inspector Raleigh, North Carolina 27603-1335 c/o U.S. Nuclear Regulatory Commission 12700 Hagers Ferry Road Mr. Richard M. Fry, Director Huntersville, North Carolina 28078 Division of Radiation Protection North Carolina Department of Dr. John M. Barry Environment, Health and Natural Mecklenberg County Resources Department of Environmental 3825 Barrett Drive Protection Raleigh, North Carolina 27609-7721 700 N. Tryon Street Charlotte, North Carolina 28202 Mr. T. Richard Puryear i Owners Group (NCEMC)

Mr. Steven P. Shaver Duke Energy Corporation l

Senior Sales Engineer 4800 Concord Road York, South Carolina 29745 Westinshouse Electric Company 5929 Camegie Blvd.

Suite 500 Charlotte, North Carolina 28209

__ . _ . _ . . _ _ - - - - --- - - - - - - - - ~ -

i (-

Reauest for Additional information Response to Generic Letter 96-05 McGuire Nuclear Station. Units 1 and 2 l 1. In NRC Inspection Report No. 50-369 and 370/96-11, the NRC staff closed its review of the motor-operated valve (MOV) program implemented at McGuire Nuclear Station (McGuire) 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 Duke Energy Corporation's (Duke's) MOV program to be addressed over the long term. For example, the inspectors noted that (1) additional industry data would be obtained and modifications were planned to increase the margins for four Aloyco split-wedge gate valves; (2) Duke intended to improve the margin for Borg Warner gate valve 1CF0129 during the next refueling outage; (3) margin improvement plans included the replacement of eight Borg Wamer gate valves; (4) Duke initiated an action plan to improve the margins and the valve factor basis for the Pressurizer Power

' Operated Relief Valve block valves; (5) program documents required revisions to include the latest load sensitive behavior and stem friction coefficient assumptions; (6) eleven MOVs with available valve factors of less than 0.50 were scheduled for margin improvements during the next refueling outage; and (7) several dynamic butterfly valve tests were planned to improve the basis for current torque requirements. Duke should provide a summary status of the actions taken to address the specific long-term aspects of the MOV program at McGuire noted in the NRC inspection report.

2. Duke should briefly describe its 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 changes in MOV thrust 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 usirm 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 NRC staff specified that licensees are responsible for addressing the thrust or torque delivered by the MOV motor actuator and its potential degradation. Duke should describe the plan at McGuire for ensuring adequate ac and de MOV motor actuator output capability, including consideration of recent guidance in 1.imitorque Technical Update 9841 and its Supplement 1.

Enclosure

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