ML20207S433

Forwards Relief Request 7 Re Preservice Exam of Piping Welds That Could Not Be Completed in Accordance W/Asme Section XI Due to Inaccessibility.High Percentage (73%) of Total Weld Population Inspected at 75% or More of Full Code Exam

ML20207S433
Person / Time
Site:	Beaver Valley
Issue date:	03/12/1987
From:	Carey J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
2NRC-7-048, 2NRC-7-48, TAC-62870, NUDOCS 8703190442
Download: ML20207S433 (9)

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M 2NRC-7-048 Beaver Valley No. 2 Unit Project Organization (412)643-5200 Telecopy (412) 643-5200 Ext.160 "8

QGB" x March 12, 1987 Shippingport, PA 15077 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

Beaver Valley Power Station Unit No. 2 Docket No. 50-412 PSI Relief Request No. 7 - Piping Welds

REFERENCE:

DLC Letter 2NRC-5-154, dated December 26, 1985 Gentlemen:

As discussed with your staff in a February 4,1981 telecon, attached is relief request number 7 on preservice examination of piping welds that. could not be completed in accordance with ASME Section XI due to inaccessibility.

Attachm?nt 1 gives the applicable code years and addenda, type of examina-tion, basis for relief and the alternative examination. Attachment 2 lists the applicable welds and provides other pertinent information. It should be noted that a high percentage, 73%, of the total population of welds were inspected at 75% or more of fulI code examination.

The remainder of the relief requests will be submitted in the near future and wiil include the foIlowing:

1) A reformatting of relief requests 2 through 6 submitted by the refer-enced letter.

2) An additional relief request to be developed after the on-going reat-tor vessel inspection is completed.

Your expeditious review and approval of this relief request would be greatly appreciated.

DUQUESNE LIGHT COMPANY J."J. Carey Senior Vice President cc: Mr. P. Tam, Project Manager - w/ attachments Mr. J. Beall, NRC Sr. Resident inspector - w/ attachments Ms. A. Asars, NRC Resident Inspector - w/ attachments j g Dr. Thomas E. Mur ley, NRC Region 1 - w/ attachments J ,

NRC Document Control Desk - w/ attachments 1

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1 g 8703190442 870312 i PDR ADOCK 05000412 O PDR

Attachment 1 DUQUESNE LIGHT COMPANY BEAVER VALLEY UNIT #2 v

RELIEF' REQUEST #7 Section X1 Edition: (,

1. 1980 through Winter 1980 Addenda for Class 1 and 2

2. 1983 through Winter 1983 Addenda as guidance for Class 2 Components:

During the preservice examination of piping weld, eighty-three (83) welds were identified where a full code examination could not be completed. The applicabic welds are shown in the attached list.

Examination Requircirants:

1. Volumetric and Surface: Table: IWB-2500-1 Category: B-J ltems: B9.11 & 89.31

2. Surface Table: 1WB-2500-1 Category: B-J ltems: B9.21 & B9.40

3. Volumetric or Surface Table: IWB-2500-1 Category: B-K-1 Items: B10.10

4. Surface Table: IWC-2500-1 Category: C-C ltem: C3.40

5. Surface and Volumetric Table: IWC-2500-1 Category: C-F-1 Item: C5.ll

6. Surface and Volumetric Table: IWC-2500-1 Category: C-F-2 i

Items: C5.51 & C5.52

\

Basis For Relief:

Full code examinations could not be canpleted due to physical impediments.

Section XI figures describing examination requirements do not recognize actual as-built configuratons or metallurgical constraints which interfere with surf ace and volumetric examination, inspections were performed at the maximum percentage practicable as shown in the attached listing.

Alternative Examination:

The required weld volume was examined to the maximum extent practicable.

l These welds have been hydrostatically tested per the applicable construc-tion code.

ATTACHMENT 2 P32 Relief Bequest N9. 7 Page 1 of 7 INCOMPLETE ESTIMATED EXAM  % OF TOTAL ,

ITEM WELD CODE CODE EXAM REPORT EXAM INTERFERING CO. NO. ISO /DwG CAT ITEM METHOD NO. COMPLETED

, CONDITION 01 2 Mss-035-6-A 100210 C-r-2 C5.51 UT 001 99%

s (2) welded branch lines 02 2 Mss-035 LOS 100210 C-r-2 C5.52 UT 002 85% welded branch line 03 2 Mss-107-r500 100206 C-r-2 C5.51 UT 003 > 95% Proximity of Main steam Relief Header on UP stream side and ,

integrally attached lifting lug on cap side 04 2 Mss-107-18 100206 C-r-2 C5.51 UT 004 > 95%

Proximity of Main steam Relief Header 05 2 Mss-169-r04 100206 C-r-2 C5.51 UT 006 > 98% welded Branch Lines i

1 06 2 MSS-1-1Al-A 200201 (Note 1) (Note 1) UT 007 > 75% welded clamp and branch line 07 2 Mss-106-r500 100207 C-r-2 C5.51 UT 008 > 95% Proximity of Main steam Relief Header and integrally attached lifting lug on cap side ,

, Oe 2 Mss-106-1B 100207 C-r-2 C5.51 UT 009 ) 954 Proximity of Main steam Relief Header

! 09 2 Mss-170-r02 100207 C-r-2 C5.51 UT 010 99% welded Branch Line 10 2 Mss-170-r04 100207 C-r-2 C5.51 UT 011 > 98% welded Branch Lines 11 2 Mss-2-1A-A 200202 (Note 1) (Note 1) UT 012 83% welded clamp 12 2M5s-105-r500 100208 C-r-2 C5.51 UT 013 ) 95% Proximity of Main steam Relief Header on UP stream side and integrally attached lifting lug on cap side

PJ1 Golief D qusst Co. 7 Page 2 of 7 INCOMPLETE ESTIMATED EXAM  % OF TOTAL ITEM WELD CODE CODE EXAM REPORT EXAM INTERFERING CO. NO. ISO /DwG CAT ITEM METHOD NO. COMPLETED CONDITION s

13 2 Mss-105-15 100208 C-r-2 C5.51 UT 014 > 95% Proximity of Main steam ^ Relief Header 14 2 MSS-3-1A-B 200203 (Note 1) (Note 1) UT 015 65% welded Attachment

{ 15 2sys-015-F13 100217 C-r-2 C5.51 UT 016 95% welded Branch Line 16 2Svs-014-r11 100217 C-r-2 C5.51 UT 017 95% welded Branch Line 17 2Svs-012-r08A 100216 C-r-2 C5.51 UT 018 50% Box Type Restraint 18 2RHs-001-r08 107120 C-r-1 C5.11 UT 019 75% Configuration is such that parti,a1 coverage (approx. 50%) can be achieved from the nossle side of the '

f , weld 19 2RCS-080-r01 110901 8-J 89.11 UT 020 99% Configuration of pipe to nossle vsid ,

I i

20 2RCs-107-2r 110908 B-J 89.11 UT 021 80% Rigid Restraint 21 2RCS-215-1-C 110907 B-J 89.11 UT 022 80% Rigid Restraint l I

l 1 l

22 2 sis-271-r503 1107123 8-J 59.11 UT 023 45% weld-o-let obstruction i 23 2 sis-018-1A-B 110794 C-r-1 C5.11 UT 024 85% Reducer configuration 24 2 SIS-010-r501 1107129 C-r-1 C5.11 UT 025 83% Typical Pipe to Tee Configuration l I

25 2 sis-287-r03 108202 B-J 59.11 UT 026 75% Configuration allows partial exam (appion. 50%) from the nossle side 26 2' SIS-288-r02 108207 B-J 59.11 UT 027 75% Configuration allows partial exam

)

(approx 50%) from the nossle side of i the veld l I

l

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P21 Colis.f Ec?qusst Co. 7 Page 3 of 7 INCOMPLETE ESTIMATED EIAM  % OF TOTAL ITEM WELD CODE CODE EXAM REPORT EXAM INTERPERING CO. NO. ISO /DwG CAT ITEM METHOD NO. COMPLETED CONDITION 27 2RCS-84-P3 110235 5-J 59.11 UT 028 95% 4 welded Attachment luga 28 2RCS-06-2-2 110227 B-J 59.31 UT 029 50% Configuration of Pipe to Branch Connection weld 29 2RCS-03-2-2 110226 B-J 59.31 UT 030 50% Configuration of Pipe to Branch Connection weld

.30 2RCS-09-2-2 110228 B-J 59.31 UT 031 50% Configuration of Pipe to Branch .

Connection weld .

31 2RCS-01-1A-1 110229 B-J 89.31 UT 032 50% Pipe to Branch Connection Config. -

32 2RCS-01-1A-2 110229 B-J 89.31 UT 032 50% Pipe to Branch Connection Config.

33 2RCS-03-2-3 110226 5-J 59.31 UT 033 50% Configuration of Pipe to Branch i

Connection weld 34 2RCS-06-2-3 110227 B-J 89.31 UT 034 50% configuration of Pipe to Branch Connection weld 35 2RCS-09-2-3 110228 B-J 59.31 UT 035 50% configuration of Pipe to Branch Connection weld .

36 2RCS-07-1-2 110231 5-J 89.31 UT 036 50% Pipe to Branch Connection Configuration 4 J3 7 2RCS-07-1-1 110231 B-J 59.31 UT 036 50% Pipe to Branch Connection Configuration 38 2RCS-003-P1 110226 B-2 59.11 UT 037 75% Rigid Restraint

PSI C011cf Cequest Co. 7 Page 4 of 7 INCOMPLETE ESTIMATED EIAM  % OF TOTAL

. ITEM WELD CODE CODE EXAM REPORT EIAM INTERFERING

30. NO. ISO /DWG CAT ITEM METHOD NO. COMPLETED CONDITION L

39 2RCS-006-F1 110227 B-J 59.11 UT 038 75% Rigid Restraint 40 2RCS-009-F1 110228 B-J 59.11 UT 039 75% Rigid Restraint 41 2RCS-009-F4 110228 B-J 59.11 UT 040 60% As-cast condition of the 0.D. on the elbow side 42 2RCS-006-F4 110227 B-J 59.11 UT 041 60% As-cast condition of the o.D. on tho' elbow side

• 43 2RCS-003-F4 110226 B-J B9.11 UT 042 60% As-cast condition of the CD on the elbow side 44 2RCS-1-F3 110229 3 +J 59.11 UT 043 83% Elbow to valve configuration 45 2RCS-004-F3 110:30 B-J 09.11 UT C44 85% Elbow to valve configuration 46 2ACS-7-F3 110231 B-J 59.11 UT 045 83% Elbow to valve configuration 47 2RCS-004-F2 110230 B-J B9.11 UT 046 > 85% Pipe to valve configuration i

48 2RCS-7-F,2 110231 rJ B9.11 UT 047 85% Pipe to valve configuration t

49 2 R Cs r-2 110229 B-J B9.11 UT 048 85% Pipe to valve configuration 50 2RCS-1-F4 110229 B-J 89.11 UT 049 50% Elbow to nossle configuration 51 2RCS-4-F4 110230 B-J 89.11 UT 050 50% Elbow to nossle configuration 52 2RCS-7-F4 110231 B-J B9.11 UT 051 50% Elbow to nousle configuration 53 2RCS-003-F3 110226 B-J 89.11 UT 052 83% Configuration of pipe to valve veld 54' 2RCS-006-F3 110227 B-J B9.11 UT 053 > 85% configuration of pipe to valve weld

PSI 121ief Dcqu.3st Co.-7 Attcchment Page 5 of 7 INCOMPLETE ESTIMATED EXAM  % OF TOTAL ITEM WELD CODE CODE EXAM REPORT EXAM INTERFERING C@. NO. ISO /DWG CAT ITEM METHOD NO. COMPLETED CONDITION 55 2RCS-009-F3 110228 B-J 59.11 UT 054 83% Configuration of pipe to valve veld 56 2RCS-003-F2 11C226 B-J 89.11 UT 055 83% Configuration of pipe to valve veld 57 2RCS-006-F2 110227 B-J 89.11 UT 056 85% Configuration of pipe to valve weld 58 2RCS-009-F2 110228 B-J 59.11 UT 057 83% Configuration of pipe to valve weld 59 2RCS-005-F1 110233 B-J 59.11 UT 058 50%

Elbow to nossle configuration 60 2RCS-002-F1 110232 B-J 59.11 UT 059 50% Elbow to nossle configuration 61 2RCS-8-F1 110234 B-J 89.11 UT 060 50% Elbow to nossle configurati'on 62 2RCS-2-F3 110232 B-J 59.11 UT 061 97% Weld-o-let in scan area 63 2RCS-5-F3 110233 B-J 89.11 UT 062 97% Weld-o-let in scan area 64 2RCS-08-F3 110234 B-J B9.11 UT 063 97% Weld-o-let in scan area 65 2RCS-056-2A 107012 B-J B9.21 PT 065 95% Support plate 66 2RCS-056-F03 107012 B-J 89.40 PT 066 95% Support plate 67 2 SIS-009-F802 110793 C-C C3.40 PT 068 85% Bos Bean (part of the support) obstructing all lugs 68 2 SIS-009-F803 110793 C-C C3.40 PT 068 85% Bos Bean (part of the support) obstructing all lugs 69 25IS-009-F804 110793 C-C C3.40 PT 068 85% Box Beam (part of the support) obstructing all lugs u - - -

PSI Relief Request No. 7 Page 6 of 7 INCOMPLETE ESTIMATED EZAM  % OF TOTAL ITEM WELD CODE CODE EXAM REPORT EXAM INTERFERING

50. NO. ISO /DWG CAT ITEM METHOD NO. COMPLETED CONDITION l

70 2 SIS-009-r805 110793 C-C C3.40 PT 068 85%

Box Beam (part of the support) ,

obstructing all lugs 71 l 2 SIS-009-r806 110793 C-C' C3.40 PT 068 85% Box Beam (part of the support) obstructing all lugs 72 2 SIS-009-r807 110793 C-C C3.40 PT 068 85% Box Bean (part of the support) obstructing all lugs 73 2 SIS-009-r808 110793 C-C C3.40 PT 068 85% Box Beam (part of the support) obstructing all lugs 74 2 SIS-009-r809 110793 C-C C3.40 PT 068 85% Box Beam (part of the support) obstructing all lugs 75 2CHS-142-118-D 110739 B-J 89.21 PT 074 80% Box Beam Rigid Restraint 76 2CHS-120-r506 108305 C-C C3.40 PT 075 85% Box Bean (part of the support) obstructing all lugs 77 2CHS-120-r507 108305 C-C C3.40 PT 075 85% Box Bean (part of the support) obstructing all lugs 78 2CHS-120-r508 108305 C-C C3.40 PT 075 85% Box Beam (part of the support) obstructing all lugs 79 2CHS-120-r509 108305 C-C C3.40 PT 075 85% Box Bean (part of the support) obstructing all lugs 80 2CHS-120-r510 109939 C-C C3.40 PT 078 85% Box Beam (part of the support) obstructing all lugs

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PJI Colio'f Ecquset Do. 7 Page 7 of 7 4 INCOMPLETE ESTIMATED EXAM  % OF TOTAL ITEM WELD CODE CODE EXAM REPORT EXAM INTERFERING US. NO. ISO /DWG CAT ITEM METHOD NO. COMPLETED CONDITION ' '

I i.

9 81 2 CMS-120-F511 109939 C-C C3.40 PT 078 85% Box Bean (part of the support) obstructing all lugs 82  !

1 2CNS-120-F512 109939 C-C C3.40 PT 078 85% Box Bean (part s'upp o rt )

! of the 3 obstructing all lugs , [

, 83 2CNS-120-F513 109939 C-C C3.40 PT 078 85% Box Bean (part of the support) i ,

obstructing all lugs -

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CSTE:

1. Augmented' Inservice Inspection to Protect Against Postulated Piping Failures a

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