ML20236P739

Submits Response to NRC 980612 RAI Re ISI Programs

ML20236P739
Person / Time
Site:	Farley
Issue date:	07/13/1998
From:	Dennis Morey SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9807170121
Download: ML20236P739 (3)

Text

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Dave M r:y S:uthern Nuclear

, Vice President Operating CompaIy Farley Project F.O. Box 1295 Birmingham. Alabama 35201 Tel 205.992.5131 4

July 13, 1998 COMPANY Energy to Serve YourWorld" Docket Nos.: 50-348 10CFR50.55a 50-364 U. S. Nuclear Regulatory Commission ATrN: DocumentControlDesk Washington,DC 20555 Joseph M. Farley Nuclear Plant Inservice Inspection (ISI) Program Response to NRC Questions / Comments Updatpd ISI Programs Ladies and Gentlemen:

In accordance with the requirements of 10CFR50.55a(g)(4)(ii), Southern Nuclear Operating Company (SNC) submitted updated ISI programs for Joseph M. Farley Nuclear Plant (FNP) Units 1 and 2 by letter dated May 28,1997, as supplemented by letter dated November 3,1997.

By letter dated June 12,1998, the NRC requested additional information regarding these ISI Programs. Enclosed is SNC's response to this request.

Should you have any questions please contact this office.

Respectfully submitted, ff'1 ?) M l Dave Morey AJP:marraiO698c. doc Enclosure cc: Mr. L. A. Reyes, Region II Administrator- g

Mr. J. I. Zimmerman. NRR Project Manager g l' Mr. T. M. Ross, Plant Sr. Resident Inspector O 1 9007170121 DR 900713 G ADOCK 05000348 PDR t

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r ENCLOSURE I

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NRC Comment:

Request for Relief RR-28: RR-28 proposed to use Code Case N-522 for examinations on containment penetration piping. Code Case N-522 allows the use of 10 CFR Part 50, Appendix J

as an alternative to the rules in Tab!e IWC-2500-1, Category C-H for pressure testing of certain i containment penetration piping. You stated that the tests will be scheduled in accordance with Appendix J, Option B. The use of Option B in Appendix J has been found acceptable for use with l the following conditions

(a) the tests will be performed at peak calculated contamment pressure,

! and (b) the test procedures will include methods for detection and location of throughw311 leakage

( in containment isolation valves (CIVs) and pipe segments between the CIVs. Please confirm that l all of the above conditions will be met.

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SNC Resoonse:

'Ihe FNP leak rate testing procedures perform Appendix J testing of the applicable penetrations at the calculated peak accident pressure. It is the standard practice at FNP to determme and correct i

the cause of unacceptable Appendix J test leakage in order to reduce that leakage to acceptable levels. Should the cause of the unacceptable Appendix J leakage be a throughw311 leak, this condition will be identified by the normal and appropriate troubleshooting methods employed at FNP. FNP will revise the appropriate leak testing procedures prior to the next refueling outage for each unit to make specific mention of the possible need for the detection and location of throughwall leakage of the penetrations to which this code case is applied.

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