ML18009A503

Submits Suppl 2 to Relief Request R2-001 Re Plant 10-yr Inservice Insp Plan,Per 880129 Request

ML18009A503
Person / Time
Site:	Harris
Issue date:	04/25/1990
From:	Cutter A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NLS-90-064, NLS-90-64, NUDOCS 9005020078
Download: ML18009A503 (7)

Text

ACCELERATED DI UTION DEMONSTjRATION i SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:9005020078 DOC.DATE: 90/04/25 NOTARIZED:

NO FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina AUTH.NAME AUTHOR AFFILIATION CUTTER,A.B.

Carolina Power 6 Light Co.RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Submits Suppl 2 to Relief Request R2-001 re plant 10 yr inservice insp plan,per 880129 request.DISTRIBUTION CODE: A047D COPIES RECEIVED:LTR ENCL SIZE: TITLE: OR Submittal:

Inservice Inspection/Testing/Relief from ASME NOTES:Application for permit renewal filed.DOCKET N 05000400 Code 05000400 RECIPIENT ID CODE/NAME PD2-1 LA BECKER,D COPIES LTTR ENCL 1 0 1 1 RECIPIENT ID CODE/NAME PD2-1 PD COPIES LTTR ENCL.5 5 INTERNAL: ACRS NRR/DET/ECMB 9H NUDOCS-ABSTRACT OGC/HDS1 RES/DSIR/EIB EXTERNAL EGGG BROWN i B LPDR NSIC 6 AEOD/DSP/TPAB 1 NRR/DET/EMEB 9H 1 OC/LFgB 0~EG FILE 1~g~t&-7f 1 1 EGS(G RANSOME,C 1 1 NRC PDR 1 1 1 1 1 1 1 0 1 1 1 1 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEI CONTACT THE.DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISIS FOR DOCUMENTS YOU DON'T NEEDl TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 23

'l I I)~k a'$4 f I i 0~l~,1 I (1 g I l CNt&L Carolina Power&Light Company P.O.Box 1551~Raleigh, N.C.27602 APR 2 5 1990 SERIAL: NLS-90-064 A.B CUTTER Vice President Nuclear Services Department United States Nuclear Regulatory Commission ATTENTION:

Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO.50-400/LICENSE NO.NPF-63 INSERVICE INSPECTION RELIEF REQUEST Gentlemen:

Carolina Power 6 Light Company hereby submits Supplement 2 to Relief Request No.R2-001.This request was submitted on January 29, 1988, as a part of the Shearon Harris Nuclear Power Plant Ten Year Inservice Inspection Plan (ISI)for the first ten-year interval.The staff approved the ISI plan on September 30, 1988.1 This supplement adds one additional Class 2 weld for R2-001.During the recent second refueling outage, the need for relief from the required volumetric examination for one-weld was identified.

Obstructions prevented a 100X examination of the weld.These obstructions were not encountered during the Preservice Inspection (PSI)of this weld, which was completed while s'ome construction activities were still in progress.Since the PSI, structural steel has been installed which interferes with the volumetric examination of the subject weld.The following table shows the percentage of the examination performed.

EXAMINATION CATEGORY COMPONENT ID EXAMINATION X ACHIEVED VOLUMETRIC SURFACE Cat.-FSAR Item No-6.6.8C (Augmented)

II-MS-007MS-FW-563 67X 100X A copy of Relief Request R2-001 is enclosed for your information.

It provides the basis and technical justification for granting relief for this additional weld.The Relief Request included an attached list of components to which it applied.That attachment is not included as indicated in the enclosure."Supplement 1 was submitted on January 30, 1989 and is still pending.9005020078 900425 PDR ADOCK 05000400 9 PDC C;("1 A<\I'"'a CI" V l t ,\

Document Control Desk (NLS-90-064)

/Page 2 Carolina Power&Light Company requests approval of this supplement by December 1, 1990, in order to support the beginning of the second period of inspections and the third SHNPP refueling outage, currently scheduled for Spring 1991.Please refer any questions regarding this submittal to Mr.Steven Chaplin at (919)546-6623.Yours very ly, A.B Cutter SDC/ecc (646ECC)Attachment cc: Mr.R.A.Becker Mr.S.D.Ebneter Mr.J.E.Tedrow REQUEST FOR RELIEF NO R2-001: PRESSURE RETAINING WELDS IN IN PIPING'ATEGORY C Fs ITEM C5 21 AND INTEGRAL WELDED ATTACHMENTS FOR VESSELS'IPING, PUMPS AND VALVES, CATEGORY C-C, ITEMS: C3.20 and 3.30.IDENTIFICATION OF COMPONENTS:

Pressure retaining circumferential piping welds;and integral welded attachments on vessels, piping, pumps and valves as listed on attachment for this relief request.ASME SECTION XI CODE REQUIREMENTS:

Examination Category C-F, Item C5.21 requires, on pressure retaining circumferential welds in piping>1/2 in.nominal wall thickness, an inservice surface and volumetric examination be performed.

Examination Category C-C, Item(s)C3.20 and C3.30 requires an inservice surface examination be performed on integral welded attachments meeting the following condition:

(1)The attachment base material design wall thickness is 3/4 in.or greater.CODE RELIEF REQUEST: Relief is requested from performing 100%volumetric and/or surface examinations on listed circumferential piping welds (>1/2 in.nominal wall thickness) and listed integral welded attachments due to component configurations (pumps, valves)not being conducive to examination, and/or structural obstruc-tions (permanent hangers, saddle plates, support structures, or intervening members for other systems)not allowing access-ibility to perform 100%surface and/or volumetric examination, as applicable (see computer listing for component identifica-tion and predicted completion percentages, based on preservice baseline information, for the appropriate examinations).

ALTERNATE EXAMINATIONS:

Components will be subject to periodic systems pressure tests, as well as periodic hydrostatic and visual (VT-2)examination, to the maximum extent possible.Welds will be volumetrically (U.T.)examined, to the maximum extent possible, in accordance with the Inservice Inspection Program Schedule.In addition, the components will be subject to system pressure tests during each refueling outage.CONSTRUCTION CODE EXAMINATION:

Volumetric (as applicable)

Surface (as applicable)

Page 1 of 2 R2-001 Cont.TECHNICAL JUSTIFICATION FOR REQUESTING RELIEF Component configurations (pumps, valves)and/or structural obstructions (hangers, saddle plates, support structures) will not allow 100%inservice volumetric and/or surface examination to be performed.

Components were subject to fabrication/construction volumetric and/or surface examinations, as applicable, which provides a high confidence level of structural integrity for long-term plant operations.

In addition, in response to NRC question 250.1 and FSAR Section 6.6.8, a large sample of welds in the ECCS, CHR and RHR Systems, as well as No Break Zone Crit-eria components were examined during preservice activities (1,064 examinations including 525 surface and 539 volumetric), providing additional assurance of structural integrity.

Attached to this relief'request is an itemized listing of components, percentages of completion based on preservice data, and identification of specific reasons as to why a 100%ASME Section XI Code examinations can not be performed.

Should~more advance nondestuctive method techniques to improve coverage become available, an evaluation will be performed for possible incorporation into the SHNPP ISI Program.No impact on plant quality, safety or reliability is expected, as subject components will be examined to the maximum extent possible, as well as be subject to periodic pressure tests and visual examinations in accordance with the ASME Section XI Code, to ensure component intergrity.

This Request for Relief (R2-001)is applicable to the SHNPP Unit 1 First Ten (10)Year Inservice Inspection Program.Page 2 of 2