ML18012A554
| ML18012A554 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 03/13/1997 |
| From: | Le N NRC (Affiliation Not Assigned) |
| To: | Robinson W CAROLINA POWER & LIGHT CO. |
| References | |
| TAC-M96760, NUDOCS 9703140188 | |
| Download: ML18012A554 (5) | |
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UNITED STATES NUCLEAR REGULATORYCOMMISSION WASHINGTON, D.C. 2D55&0001 March 13, 1997 Mr.
W. R. Robinson, Vice President Shearon Harris Nuclear Power Plant Carolina Power
& Light Company Post Office Box 165 Hail Code:
Zone 1
New Hill, North Carolina 27562-0165
SUBJECT:
SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1 INSERVICE INSPECTION PROGRAM RELIEF REQUESTS FOR REGENERATIVE HEAT EXCHANGER (TAC NO. M96760)
Dear Mr. Robinson:
4 By letter dated October 8, 1996 (HNP-96-162),
as supplemented January 21, 1997 (HNP-97-004), Carolina Power
& Light Company (CP&L) submitted relief requests (R2-006 and R2-007) pursuant to 10 CFR 50.55a(a)(3)(ii) from compliance with the requirements of the ASME Code,Section XI, 1983 Edition, including addenda through the Summer of 1983 on the volumetric examination of welds of the Regenerative Heat Exchanger and on the visual examination of its supports.
In relief request No. R2-006, you stated that you had successfully inservice inspected 8 of the 12 welds in two out of three'eat exchangers during Refueling Outages 2 and 3 of the first 10-year inservice inspection interval and requested relief to substitute the volumetric examination with a VT-2 visual examination of the same welds in the remaining heat exchanger due to as low as is reasonably achievable (ALARA) concerns.
Furthermore, your submittal indicated that there was no rejectable indication found in any heat exchanger either during the preservice inspection or the subsequent inservice inspection.
The staff has reviewed your request for relief against the applicable Code requirement and determined that you had, in fact, complied with the Code based on the following interpretation of the Code and, therefore, a request for relief is not required.
For pressure retaining welds in pressure vessels (Class 2 Components)
Examination Category C-A, the extent of examination in case of multiple vessels of similar design,
- size, and service (such as steam generators, h
exchangers),
the required examinations may be limited to one vessel or distributed among the vessels.
The staff has reviewed your submittal and determined that, for the subject Regenerative Heat Exchanger, which consis of three identical units of shell and U-tube heat exchangers connected in
- series, two out of three of these heat exchangers were volumetrically examined during the second and third outages of the current inspection interval.
Therefore, the staff has determined that requirement of the Code has been satisfied during the first inservice inspection of one heat exchanger out of three.
Ig In your above-stated
- letters, you also submit a second relief request (No. R2-007) to substitute the direct visual (VT-3) examination with a 9703i40i88 9703i3 PDR ADOCK 05000400 PDR P
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remote visual examination of six wall-mounted supports (two per heat exchanger) for the Regenerative, Heat Exchanger due to ALARA concerns.
The staff finds that it is permissible by the applicable ASME Code,Section XI, Subsection IWA-2213 Visual Examination VT-3, which states the following:
"For component supports and component interiors, the visual examination may be performed remotely with or without optical aids to verify the structural integrity of the component."
The staff further believes that, if the connections at the support points are exposed, it may not be necessary to remove insulation from the heat exchangers to conduct the proposed remote visual examination to save additional man-rem as proposed in your relief request.
Based on the above review,,the staff concludes that your program for the volumetric examination of the Regenerative Heat Exchanger and the visual examination of its supports is in compliance with the applicable ASME Code,Section XI and, therefore, the reliefs requested are not required.
Docket No. 50-400 cc:
See next page Sincerely, (Original Signed By)
Ngoc B; Le,,Project 'Manager Projec't Directorate II-1 Division of, Reactor Projects - I/II Office of Nuclear Reactor Regulation Distribution:-Docket-Fi.le-PUBLIC PDII-1 RF S.
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HARRIS HAR96760.REL OFFICE NAME PM: PDI I-1 NLe C
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Mr.'W. R. Robinson
'aro'lina Power
& Light Company Shearon Harris Nuclear Power Plant Unit 1
CC:
Mr. William D. Johnson Vice President and Senior Counsel Carolina Power
& Light Company Post Office Box 1551
- Raleigh, North Carolina 27602 Resident Inspector/Harris NPS c/o U.S. Nuclear Regulatory Commission 5421 Shearon Harris Road New Hill, North Carolina 27562-9998 Ms. Karen E.
Long Assistant Attorney General State of North Carolina Post Office Box 629
- Raleigh, North Carolina 27602 Public Service Commission State of South Carolina Post Office Drawer 11649
- Columbia, South Carolina 29211 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta St.,
N.W. Suite 2900 Atlanta, Georgia 30323 Mr. Dayne H. Brown, Director Division of Radiation Protection N.C. Department of Environmental Division of Radiation Protection Commerce
& Natural Resources Post Office Box 27687
- Raleigh, North Carolina 27611-7687 Mr. J.
Cowan Vice President Nuclear Services and Environmental Support Department Carolina Power
& Light Company Post Office Box 1551 - Mail OHS7
- Raleigh, North Carolina 27602 Mr. Bo Clark Plant General Manager Harris Plant Carolina Power
& Light Company Shearon Harris Nuclear Power Plant P.O.
Box 165 New Hill, North Carolina 27562-0165 Mr. J.
W. Donahue Director of Site Operations Carolina Power
& Light Company Shearon Harris Nuclear Power Plant Post Office Box 165, MC: Zone 1
New Hill, North Carolina 27562-0165 Mr. Robert P. Gruber Executive Director Public Staff NCUC Post'ffice Box 29520
- Raleigh, North Carolina 27626 Chairman of the North Carolina Utilities Commission Post Office Box 29510 Ral eigh, North Carol ina 27626-0510 Mr. T. D. Walt
- Manager, Regulatory Affairs Carolina Power
& Light Company Shearon Harris Nuclear Power Plant P. 0.
Box 165, Mail Zone 1
New Hill, North Carol ina 27562-0165 Mr. Vernon Malone, Chairman Board of County Commissioners of Wake County P. 0.
Box 550
- Raleigh, North Carolina 27602 Margaret Bryant Pollard, Chairman Board of County Commissioners of Chatham County P.
O.
Box 87 Pittsboro, North Carolina 27312 Mr. Milton Shymlock U.S. Nuclear Regulatory Comm.
101 Marietta Street, N.W.
Suite 2900 Atlanta, Georgia 30323-0199
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