ML18152A268

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Forwards Relief Requests SR-009 Through SR-017 Re Inservice Insp Program
ML18152A268
Person / Time
Site: Surry Dominion icon.png
Issue date: 04/23/1996
From: OHANLON J P
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
96-138, NUDOCS 9604250440
Download: ML18152A268 (35)
v • d • e


Text

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  • VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 April 23, 1996 United States Nuclear Regulatory Commission Attention:

Document Control Desk Washington, D.C.

  • 20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 1 INSERVICE INSPECTION PROGRAM RELIEF REQUESTS Serial No.96-138 NL&OS/EJW Docket No. 50-280 License No. DPR-32 During the recent refueling outage, Surry Power Station Unit 1 completed examinations in the first period of its third ten year inservice inspection (ISi) interval.

The component examination program is conducted in accordance with ASME Section XI 1989 Edition. Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested from certain requirements of the ASME Section XI Code associated with partial examinations conducted during the 1995 Surry Unit 1 refueling outage. Relief Requests SR-009 through SR-017 (attached) provide the basis for the requested relief. These relief requests have been approved by the Surry Station Nuclear Safety and Operating Committee.

If you have any questions concerning these requests, please contact us. Very truly yours, James P. O'Hanlon Senior Vice President

-Nuclear Attachments

--9604250440 9604-23 PDR ADOCK 05000280 PDR

'

  • J
  • cc: United States Nuclear Regulatory Commission Region II 101 Marietta Street, N.W. Suite 2900 Atlanta, GA 30323 Mr. M. W. Branch NRC Senior Resident Inspector Surry Power Station \ .. *
  • RELIEF REQUEST SR-009 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 1-12 27 1/2"-RC-9-2501 R II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-0102AZ-1 Class 1 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination category B-J, item number 89.11 does not allow any limitations to the required volumetric or surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 10 percent. Ill. BASIS FOR RELIEF The component listed above has been examined to the extent practical as required by the Code. However, full volumetric coverage could not be achieved due* to the configuration of the weld (pipe to reactor coolant pump) and a 1" x 5" identification tag. Coverage of the volumetric examinations are detailed in Table SR-009-1.

Figure SR-009-1 is provided as graphic detail of the limitations experienced.

This weld is a terminal end weld and, as such, all welds of this type are scheduled for examination.

Therefore, substitution with another weld is not feasible.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code requirements.

UT Scan Coverage Weld No. 1-12 96.2 UT Scan Direction Definitions 0 1 100 .8. 100 Table SR-009-1 Surry Unit 1 Examination Coverage Estimates (Piping) 11448-WMKS-0102AZ-1 Category B-J, Item B9.11 Surface Coverage%

100 Reason For Partial Pipe to reactor coolant pump configuration prevented scanning from the 5 side. A l" x 5" welded tag prevented full coverage, (76% coverage obtained) for the 5" of weld circumference on the 2 side. The use of alternate angles would not have improved volumetric coverage.

Because of the use of the longitudinal wave form only Yz node examinations were possible.

2 -Axial scan, 180 degrees from Isometric flow direction 5 -Axial scan, the same direction as the isometric flow 7 -Circumferential scan, clockwise rotation when viewing in the direction of isometric flow 8 -Circumferential scan, counter-clockwise rotation when viewing in the direction of isometric flow *

  • Figure SR-009-1 Search Unit
  • 5 Side A ~1
  • Exam. Volume Exam. Volume Hatched area (in examination volume) shows extent of coverage due to the I.D. Tag. Seventy-six (76) percent of the volume was not examined for five (5) inches.

{ EL. II'* 'I 15/16" ------V/ ; REACTOR VESSEL l*RC-...... R*l ..... INOTE 71 11448-WMKS-0102AZ-l REACTOR COOLANT PUMP .... *r*1tc ....... ::... .... P-u£ .. .> INOTE 'II ,-* x GE~OR ..... E*IC ... INOTE 111 ... **" ** .. \*** ~, =s*--R-c--:--,-.,-5-.,2---1 SEE DE TAIL 'A' ON 'J 448*WHk5*1llll2Alj

('""") I I I I I I I I I I I I I I COLD LEG HOT l~G ~E DETAIL 'O"OH 'J ' L_4411-1tHKS*lllll2Alj JI'* 2'1' 'Ill" RED Ell * *

  • RELIEF REQUEST SR-010 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 1-11 31 "-RC-8-2501 R II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-0102AZ-1 Class 1 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination category B-J, item number B9.11 does not allow any limitations to the required volumetric or surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 10 percent. Ill. BASIS FOR RELIEF The component listed above has been examined to the extent practical as required by the Code. However, full coverage could not be achieved due to the configuration of the weld (pipe to reactor coolant pump) and a support. Coverage of the examinations are detailed in Table SR-010-1.

Figure SR-010-1 is provided as graphic detail of the limitations experienced, where the weld could be examined.

Figure SR-010-2 is provided to show the closeness of the support in relation to weld 1-11. The support is a massive welded and bolted structure that supports the reactor coolant pump and, as such, cannot be removed to allow access to weld 1-11. This weld is a terminal end and, as such, all welds of this type are scheduled for examination.

Therefore, substitution with another weld is not feasible.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code requirements.

UT Scan Coverage Table SR-010-1 Surry Unit 1 Examination Coverage Estimates (Piping) 11448-WM KS-0102AZ-1 Category 8-J, Item 89.11 Surface Coverage%

Reason For Partial .;. Weld No. 1-11 0 49 46.5 50 50 Pipe to reactor coolant pump configuration prevented scanning from the 2 side. A pipe support covering the weld from 270° to 90°, (9 O'clock to 3. O'clock) prevented examination, both volumetric and surface, in this area. The use of alternate angles would not have improved volumetric coverage.

Because of the use of the longitudinal wave form only 1/2 node UT Scan Direction Definitions 2 -Axial scan, 180 degrees from Isometric flow direction 5 -Axial scan, the same direction as the isometric flow

  • examinations were possible.

7 -Circumferential scan, clockwise rotation when viewing in the direction of isometric flow 8 -Circumferential scan, counter-clockwise rotation when viewing in the direction of isometric flow

  • Figure SR-010-1 Search Unit Search Unit 5 Side ~I 2 Side I V Exam. Volume Hatched area (in examination volume) shows lack of coverage due to configuration, i.e., six (6) percent of the examination volume was not examined.
  • *

Side View Figure SR-010-2 Component Su art 31"-RC-8-2501R at \.leld 1-11 Top View *

  • i EL, II"* 'I l!lil&'y/

' REACTOR VESSEL I-RC-. ...... R*l ..... INOTE 71 11448-WMKS-0102AZ-l REACTOR COOLANT fYB.P ****r1te**

.... . \ .... P-1c* ... > IIIOTE 'II TD 11441 *Wl<<S*IUl3A7 OE~OR "'i-Rt*"" .... E-IC .... INIJJE II * ......... \ 'rl""&"°*.~RC~-~:"-l*-15_0_2_*_1 SEE OET AIL 'A' ON "] 448*WHk5*BIB2AZj (MH .... I I I I I I I I I I I I I I CIJ..D LEG SEE llETAIL '&'ON j ll4411*WHKS*Bll2AZj HOT LEG * ~E DETAIL 'D'CIN j ' L4411*11NCS*lll2AZ~r-ll'* zqo 'Ill' RED ELL *

  • ** RELIEF REQUEST SR-011 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 1-20 31 "-RC-8-2501 R II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-0102AZ-1 Class 1 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination category 8-J, item number 89.12 does not allow any limitations to the required volumetric or surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 10 percent. Code Case N524 (b), (1) modifies Table IWB-2500-1, Note (4) and only requires that examination requirements shall be met for both transverse and parallel flaws at the intersection of the welds and for that length of longitudinal weld within the circumferential examination volume. Ill. BASIS FOR RELIEF The component listed above is inaccessible for both surface and volumetric examination.

Examination could not be achieved due to the configuration of the support. A reactor coolant pump support/pipe support completely covers this longitudinal weld. The circumferential weld (1-11) that intersects with this longitudinal weld is a terminal end and, as such, all welds of this type are scheduled for examination.

Therefore, substitution with another weld is not feasible.

The adjacent longitudinal weld 1-21 (shown on drawing 11448-WMKS-0102AZ-1 and Figure SR-011-1) was examined 100%, at weld 1-11, per Code Case N-524, with no reportable indications (NRI). IV. ALTERNATE PROVISIONS It is proposed that the system leakage test be substituted for the Code surface and volumetric examination.

_J Weld 1-20 .... (longitudinal weld) is under component support. Reactor coolant Pump Figure SR-011-1 Weld 1-11 (circumferential weld) Weld 1-21 (longitudinal weld) Pipe support .... Side View Component Su ort 31"-RC-8-2501R at Weld 1-11 Top View # !. *

  • l EL, II'* 'I 15/16' y/ ' REACTOR VESSEL I-RC-., ...... R*l ..... INOTE 71 11448-lrl4KS-0102AZ-1 REACTOR COOLANT POMP ., .. *r1tc*** .. . \ .... P*IC-... > INOTE 'II GE~OR l*RC-..... E*IC ..... !NOTE Ill (_ ...... \_ .. \ I &'*RC*:'1-15112*

I SEE DETAIL 'A' ON 448*WHKS*B1ll2AZj

,~ .... ) I I I I I I I I I I I I I I CDl.0

  • NOT LEG L!EG SEE DETAIL '8' ON -::1 114411*WHKS*lllll2AZj

~E DETAIL 'O'ON '] ' L44ll*WHICS*1112AZ:J ll'X 2<r 'II' RED ELL !. * *

  • RELIEF REQUEST SR-012 I. IDENTIFICATION OF COMPONENT Weld No. Line # Weld 1-05DM 29 11-RC-1-2501 R Weld 1-06DM 31"-RC-2-2501R II. IMPRACTICABLE CODE REQUIREMENTS D.rawing # 11448-WMKS-O 1 OOAZ-1 11448-WMKS-01 OOAZ-1 Class 1 1 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination category B-F, item number 85.70 does not allow any limitations to the required volumetric or surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 10 percent. Ill. BASIS FOR RELIEF The components listed above have been examined to the extent practical as required by the Code. However, due to the configuration of the weld (pipe to steam generator nozzle to safe end butt weld) full volumetric coverage could not be achieved.

Coverage of the volumetric examinations are detailed in Table SR-012-1.

Figure SR-012-1 is provided as graphic detail of the limitations experienced.

All welds of this type are scheduled for examination.

Therefore, substitution with other welds is not feasible.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code*requirements.

UT Scan Coverage Weld No. l-05DM l-06DM 0 80 UT Scan Direction Definitions 80 0 1 50 50 .8. 50 50 Table SR-012-1 Surry Unit 1 Examination Coverage Estimates (Piping) 11448-WMKS-01 OOAZ-1 Category B-F, Item BS.70 Surface Coverage%

100 100 Reason For Partial Pipe to steam generator nozzle to safe-end configuration prevented scanning from the nozzle side, and also prevented full scanning from the elbow side. The use of alternate angles would not have improved volumetric coverage.

Because of the use of the longitudinal wave form only Yi node examinations were possible.

Pipe to steam generator nozzle to safe-end configuration prevented scanning from the nozzle side, and also prevented full scanning from the elbow side. The use of alternate angles would not have improved volumetric coverage.

Because of the use of the longitudinal wave form only Yi node examinations were possible 2 -Axial scan, 180 degrees from Isometric flow direction 5 -Axial scan, the same direction as the isometric flow 7 -Circumferential scan, clockwise rotation when viewing in the direction of isometric flow 8 -Circumferential scan, counter-clockwise rotation when viewing in the direction of isometric flow *

  • Figure SR-012-1
  • Search Unit Nozzle Side Elbow Side ..... 43° Beam Angle
  • t .,_ Exam. Volume Hatched area (in examination volume) shows extent of coverage due to configuration, i.e., 20% of the examination volllne was not examined.

I*. CO'o" *,**, I . .:, ' .... ., ,' :,*;: I ~--; :-:~., I C-===:J 1 ... :,,., ..... ,I tlL,U 'I l'l*iC.' ,, &£1:Ill!l

~EJ;ill, *l*RC; .. Rel / / t ll,11'*'1 I'.:<:.' ;/ REACTOR COOLANf PJMP l*RC* r*IA CJ [,;," .. "., .. , .. I 11,~.J ..... J.:, ........ " ..:*',I _J cif;L CJ CE~OR l*RC* E*IA 'til .-.. -Ll<lLl ,.. ..*.. , I I I I I I I I I I I I I I e! :.**,*-(, ***'-!:* . .':*-* .*.:* *-*!.Ul'..*,,.:**I'>**,*

1J ,II .'l '.' .. , i ,I ,;,, ' -l ~.r.: .. ' . .; . . . ., ..... *-*-:. .. .,;, .:,:;,,,:*"*

  • "* ,*: *,' I .. *****.:**.

l .... ; < ',*'.l i :~ .:.:-* **,, II ;;11!**"'*:-;**f,** ,r .. -1,:,*J ::::e ~~:~:*.i:.!)'" ll I !f~_;/:~t}ff:r,*;~,~.i1H .... ;~ IIUd f'!!I IIH,111',.:",.)

,:r:*.-;:

....... 1 ~:P;*,,; ~1 .-..;*,G VIRGINIA POWER NORTH CAROLI NA POWER NUCLEAA EMH~[RINO SERVICES RICitHO~.O.VIRCil,.IA

  • ** RELIEF REQUEST SR-013 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 0-07 3"-CH-113-1503 II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-1105B3 Class 2 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination category C-F-1, item number C5.21 does not allow any limitations to the required volumetric or surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less thari 10 percent. Ill. BASIS FOR RELIEF The component listed above has been examined to the extent practical as required by the Code. However, full volumetric coverage could not be achieved due to the configuration of the weld (pipe to valve) and a welded pipe support. Coverage of the volumetric examinations are detailed in Table SR-013-1.

Figure SR-013-1 is provided as graphic detail of the limitations experienced.

Substitution with another weld of the same size would not necessarily improve the examination coverage since similar. geometric conditions are expected.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code requirements.

UT Scan Coverage Table SR-013-1 Surry Unit 1 Examination Coverage Estimates (Piping) 11448-WM KS-110583 Category C-F-1, Item CS.21 Surface Coverage%

Reason For Partial .. Weld No. 0-07 59 59 z 100 .a 100 100 Pipe to valve configuration prevented scanning from the 2 side (valve side). Welded support prevented 100% coverage from the elbow side. A 4T calibration was used to scan from the elbow side of the weld, where. accessible.

  • UT Scan Direction Definitions 2 -Axial scan, 180 degrees from Isometric flow direction 5 -Axial scan, the same direction as the isometric flow 7 -Circumferential scan, clockwise rotation when viewing in the direction of isometric flow 8 -Circumferential scan, counter-clockwise rotation when viewing in the direction of isometric flow
  • Figure SR-013-1 1-CH-MOV-1373

\ _____ _,, 0.400 11 distance from trunion to toe of weld. Trunion diameter is 3.2 11 lleld 0-07 l t *

  • e 7 6 5 4 3 l \\ NOTES, L~1!\~~~?[~~.~:1:::(gw~~~-i z.*1LL*1*r,c1,mtLII\SZA 11f:[C) ... f[II:._ !NIC .. ,US'/7 l'll[C,ll""-"IIAC""'"'I*

REFERENCE ORAWti-lGS1 11**1*,.S*Ur..lJ IIUl*CII' le!l*J5"..Z 11u1*"*au 11,.,.,,.z,~

Pl'lllGSTll';Ho;.i,(Tt14 Ill Q.olSiifJCAIIO'I BC,.~\* c,u11,a,G Pl*IJroGCJ1*111:11G l'IP'l>G CJl**l"IC

)-I '-> *

  • VIRGINIA POWER NORTH CAROLI NA POWER kJCLEAR E~lf.EERlhO SER'IICES RICH<<Jf<<JoYIRulHI" INSERVICE INSPECTION ISOMETRIC CHEMICAL ANO VOLUME CDNTfiJL SURRY POWER STATION UNIT I VIRGINIA POWER CAO"'* 1c.,,,,.,,.a1111121~q11.1so ll44IS*WMl(S*IIB'!1Bl

....

  • RELIEF REQUEST SR-014 I. IDENTIFICATION OF COMPONENT Weld No. Weld 1-01 Weld 1-01 Weld 1-01 Line# 1 1/2"-CH-97-1502 1 1/2"-CH-95-1502 1 1/2"-CH-93-1502 II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-01 OOA 1 Z 11448-WMKS-0101 A 1 Z 11448-WMKS-0102A 1 Z Class 1 1 1 For Surry Unit 1, Relief Request SR-008 was used for weld selection of Class 1 pressure retaining welds in piping in lieu of ASME Section XI, 1989 Edition, Table IWB-2500-1, Notes 1 (b) and 2 of Category B-J. Relief Request SR-008 was approved by N RC letter 95-404, dated 7-19-95. The relief request requires that all terminal ends of piping runs connected to vessels and pumps be examined.

Ill. BASIS FOR RELIEF The components listed above are terminal ends on seal injection piping connected to the reactor coolant pumps. The welds are completely inaccessible due to their closeness to the pump flange, i.e., they are underneath the flange. The attached picture shows the configuration on the "A" loop. However, when the reactor coolant pump main flange is disassembled, the weld is accessible for examination.

All terminal end welds are scheduled for examination.

Therefore, substitution with another weld is not feasible.

However, another weld will be selected for examination in order to ensure that 25% of examination Category B-J welds will be examined.

IV. ALTERNATE PROVISIONS It is proposed that the system leakage test and the primary loop leakage monitoring performed by the station be substituted for the Code surface examination.

If a reactor coolant pump main flange is disassembled, thereby making the weld accessible for examination, the weld will be examined consistent with Code requirements.

  • SR-014-PICTURE
  • CEEJ" EL.16'-e*

--.. ""'-..........

CEtr.: I 1/2° X 3/4* / REO 11448-WMKS-OlOOAlZ

\ CTE] 'le* LR ELL 2* JC J,4* RED

  • .,. i. 11448~WMKS-0101A1Z

,,,..'. 2" X 1 112" RED / / / [IE] I 1 112" X JI~" r;rn/ 'l0" SW ELL '" REACT~R ~OOLANT u p *, \ .OJI] *, '* 'l0" SW ELL 'lJ:li] ' SCH. 160 [I]O / FLOOR SLEEVE FL ELl-13'-6" '-.J 2"-CH-94-1503-

! ISi CLAS~ 28 ISi CLASS IA ORIENTATION LOOKING EAST ---

I "-J *

  • 11448-WMKS-0102A1Z

'!0" SW ELL""* [J]D I 1/2" X 3/4" RED./ [IE] / (--l--,CH--"'35,..,,0""')

/"/ ' / / mo / REACTOR COOLANT Eill:1e .... ***1-RC-** .. /*** ....... e::.lC ..... / JilD / / '!0" SW ELL ,FLANGE BOL T!NJ '.4 STUOS I 9 NUT~ ~OTE~ OJI] / [8D .I 2" X 3/4' RED. '!0" SW ELL 2"-(H*<!J-1502-" f z*-CH-'i2-!503-j ISi CLASS 28 151 CLASS IA ORIENTATION LOOKING NORTHWEST

  • RELIEF REQUEST SR-015 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 2-05 1-RS-P-2A II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-RS-P-2A Class 2 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination Category C-G, item number C6.10 does not allow any limitations to the required surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 10 percent. Ill. BASIS FOR RELIEF The component listed above has been examined to the extent practical as required by the Code. However, full surface coverage could not be achieved due to interferences from a pump casing support. The reduction in coverage is forty (40) percent. Figure SR-015-1 is provided as graphic detail of the limitations experienced.

Substitution with another weld is not feasible because the 11 8 11 pump has the same limitation.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code requirements.

1-RS-P-2A Wall Side View Figure SR-015-1 <--Weld 2-05 ... 2 11 x 1 h 11 Ring Welded To Casing Inaccessible (Buried) ! 3V, 11 x3 11 xV, 11 THK Angle Iron 3 11 x3 11 xV, 11 THK Angle Iron Top View Wall <-Support/ Vibration Plate Circumference is 75 11* Starting at 0 11 , going clockwise, support extends from 23" to 53 11 , and makes this area inaccessible for surface examination. ( *I

  • 11448-WMKS-RS-P-2A D D VS LC (§I) D .* '-, < ~~.;) OUTS I DE REC I RC SPRAY PUMP TO 11448 -WMKS-0123N1 . t !0--Rs-q-15J3 --.Ji. _Q!SCH_~Q!;

GAUGE CONNECTION CAN DRAIN 1t'PIPE1

  • DETAIL E ---;o~~IJ~!~~~~v~~!T'fE6Ef~IL

,. 2'Xl/2'THK RING -::,,2:'.:!=~~=~

'WELDED ro CASING ACCESS!BL~

    • . 12'-0' INACCESSIBLE FROM I 1448 -WMKS-1101AS DETAIL B
  • OET~IL C-...___,.

JETAIL D . -..... DETAIL A 20 -1 318'

' ' *

  • RELIEF REQUEST SR-016 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 2-05 1-SI-P-1A II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-SI-P-1A Class 2 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination Category C-G, item number C6.10 does not allow any limitations to the required surface examinations.

Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 1 O percent. Ill. BASIS FOR RELIEF The component listed above has been examined to the extent practical as required by the Code. However, full surface coverage could not be achieved due to interferences from a pump casing support. The reduction in coverage is thirty-seven (37) percent. Figure SR-016-1 is provided as graphic detail of the limitations experienced.

Substitution with another weld is not feasible because the 11 8 11 pump has the same limitation.

IV. ALTERNATE PROVISIONS It is proposed that the examination already completed at the reduced coverage be counted as meeting the Code requirements.

  • Wall .., / ', 1-SI-P-1A Figure SR-016-1 .. Weld 2-05 .. 2 11 xY, 11 Ring Welded To Casing ,-----'--------!

\ Inaccessible (Buried) Side View 3'1, 11 x3 11 x'l, 11 THK Angle Iron Top View Wall .. Support/ Vibration Plate 0" Circumference is 75 11* Starting at 0 11 , going clockwise, support extends from 3 11 to 31", and makes this area inaccessible for surface examination .

' ' ". ** . .*. 11448-WMKS-SI-P-lA ITEi CSEE NOTE Jl TO 11448 -WM~S-0127CI 10'*51*84*152*

! VS LC @D STIFFENING RIB CTYP 41 12'*SH*l5J-

! ITEi SEE DETAIL B ")TOR ' I COVER mTI . < ~:i~ ) LOWHEAD SAFETY INJECTION PUMP ISEE NOTE JI .__ SEE DETAIL E

  • SEE 11448*FV*5A CCET El
  • FOR VIBRATION PLATE DETAJ. . . 2"Xll2'THK RING .. ., WELDED TO CASINO ACCESSIBLE
  • . ~I, _12*~~-. iNACCESSIBLE

.. -Jtll'W<>I I_ Ti11CKNESS . SEE DETAIL D ,-l~~=SE!"!!!!I."--'--, -.-1 L--,,.--~SE---.ir-~-, '** -i u -~ SEE OETAIL A *---1:BLJ SEE DETAIL c ..___,'

" ... *

  • RELIEF REQUEST SR-017 I. IDENTIFICATION OF COMPONENT Weld No. Line# Weld 3-07BC 3"-RC-35-1502 II. IMPRACTICABLE CODE REQUIREMENTS Drawing# 11448-WMKS-0124A 1-1 Class. 1 The 1989 Edition of ASME Section XI Table IWB-2500-1, examination Category 8-J, item number 89.32 does not allow any limitations to the required surface examinations.

Code Case N:..460, Alternative Examination Coverage for Class 1 and Class 2 Welds, allows a reduction in coverage, if it is less than 1 O percent. Ill. BASIS FOR RELIEF The weld listed above is covered by a reinforcement pad/saddle weld, which totally covers the examination area described in the Code. Therefore, examination coverage cannot be achieved due to the configuration of the piping. This weld is a branch connection and, as such, all welds of this type are scheduled for examination.

Therefore, substitution with another weld is not feasible.

IV. ALTERNATE PROVISIONS It is proposed that a surface examination performed on the fillet weld of the reinforcement pad, and the system leakage test be substituted for the Code surface examination.

( l*RC*IJJ)

~: r:~: Bill Tll<<i 8 NJTS
  • 11 INOTE 41 ISi CLASS IA 3/4' NON CLASSED 11448-WMKS-0124Al-1 p i'*RC-42*682-SCH. 169 PRESSURIZER E-2 4'-RC*34*1592*

SCH.129 ISi CLASS IA PRESSURIZER E-2 NON CLASSED . PRESSURIZER E-2 NON CLASSED 6'*RC*l7*'51l2*

SCH.128 1 &-*Rt-49*692*

! / SCH.169 i * * *

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