ML20029B352

Approves Request for Relief from Hydrostatic Test Requirements for Section Xi,Div 1

ML20029B352
Person / Time
Site:	North Anna
Issue date:	03/04/1991
From:	Berkow H Office of Nuclear Reactor Regulation
To:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
References
TAC-79784, NUDOCS 9103070085
Download: ML20029B352 (2)

Text

'

March 4, 1991 Docket No. 50-338 DISTRIBUTION Docket file LEngle MSinkule RII NRC & LPDRs HBerkow Mr. W. L. Stewart PD22 Rdg File OGC Senior Vice President - Nuclear TMurley/FMiraglia 12/G/18 Virginia Electric and Power Company JPartlow 12/G/18 GHill(4) 5000 Dominion Blvd.

CRossi 11/E/4 ACRS(10)

Glen Allen, Virginia 23060 SVarga GPA/PA N$

N N 1berger 17/G/21

SUBJECT:

NORTH ANNA UNIT 1 (NA-1) - REQUEST FOR RELIEF FROM HYDROSTATIC TEST REQUIREMENTS FOR SECTION XI (TAC NO. 79784)

By letter dated February 15, 1991, you submitted a request for relief from the hydrostatic test requirements of the 1983 Edition through Summer 1983 Addenda of Section XI of the ASME Code for welds made after replacement of a 1-1/2-inch Blowdown System isolation valve (1-MS-22) and a 2-inch Chemical Feed System isolation valve (1-WT-482) at NA-1 during the current refueling outage. The Section XI Code requires that a hydrostatic test of the welds be performed prior to resumption of service. You provided in your submittal reasons.why g g g nt is impractical to perform and proposed alternatives to the We have reviewed your request and supporting information, and have determined that you have encountered a special circumstance that is covered by ASPE Code Case N-416 " Alternative Rules for Hydrostatic Testing of Re) air or Replecement of Class 2 Piping,Section XI, Division 1 " This Code Case las been reviewed and approved by the NRC as an acceptable Code Case and is list i in Regulatory Guide 1.147, " Inservice inspection Code Case Acceptability, A5HE Section XI, Division 1," Revision 8, August 1990. This Code Case allows the hydrostatic test of welds in the situation encountered by you to be deferred to the next regularly scheduled system hydrostatic tests for that system. You state in your letter that a surface examination (PT) will be performed during the current refueling outage.

In addition, a visual examination (VT-2) will be conducted in conjunction with a system inservice test (WA-5211(c)) at nominal operating temperature during the start-up following the refueling oatage.

T.iese examinations satisfy the conditions stated in the Code Case. Therefore, we have determined that relief from the requirement is not necessary in that this situation has been reviewed and approved by Code Case N-416 and documented as approved by the NRC in Regulatory Guide 1.147.

You shou'id implement usage of the Code Case and indicate this usage in the appropriate inservice inspection related documents.

t Sincerely, C

04 g

+ Herbert N. Berkow, Director

<~

\\j Project Directorate II-2 Division of Reactor Projects - 1/il Of fice of Nuclear Reactnr Regulation f

next page' 16:PDIl-2 PM- '

0:PDIl-2

• RELIEF REQUEST /NA DMiller LEngle:jkd HBerkow

$)

l 03/q/91 05/0y91 03/q/91 9103070085 9.10304 0

1 PDR ADOCK ObOOOG38 P

PDR

l

.f4*

Mr. W. L. Stewart Nor'.h Anna Powt r Station Virginia Electric & Power Company Units 1 e d 2 4

CC:

Mr. William C. Porter, Jr.

C. M. G. Buttery, M.D., M.P.H.

County Administrator Department cf Health Louisa County 109 Governor Street P.O. Box 160 Richmond, Virginia 23219 Louisa, Virginia 23093 Regional Adrainistrator, Region 11 Michael W. Maupin, Esq.

U.S. Nuclear Regulatory Commission Hunton and Williams 101 Marie +ta Street N.W., Suite 2900 P. O. Box 1535 Atlanta, Georgia 30323 Richmond, Virginia 23212 Mr. W. T. Lough Virginia Corport'. ion Commission Mr.. G. E. Kane, Manager Division of Energy Regulation North Anna Power Station P. O. Box 1197 P.O. Box 402 Richmond, Virginia 23209 Mine-el, Virginic 23117 Old Dominion Electric Cr> operative Mr. J. P. O'Hanlon c/o Executive Vf ee Pres 1&nt Vice President - Nuclear Services Innsbrook Corporate Centet Virginia Electric and Power Company 4222 Cox Road, Suite 102 5000 Dominion Blvd.

Glen Allen, Virginia 23060 Glen Allen, Virginia 23060 Mr. E. Wayne Harrell Mr. Martin Bowling Vice President - Nuclear Operations Manager - Nuclear Licensing Virginia Electric and Power Co.

Virginia Electric and Power Company 5000 Dominion Blvd.

5000 Dominion Blvd.

Glen Allen, Virginia 23060 Glen Allen, Virginia 23060 Mr. Patrick A. O' Hare Office of the Attorney General Supreme Court Building 101 North 8th Street Richmond, Virginia 23219 Senior Resident inspector North Anna Power Station U.S. Nuclear Regulatory Commission Route 2 Box 78 Mineral, Virginia 23117

__._____.m

__ _ _ _ _ _ _ _ _ _ _. _ _. _ _ _ _. _ _. _ _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. _ _. _. _ _ _ _ _ _ _ _ _ _ _ _ _ _