revision 37 to 'hydro test of reactor coolant system

52
(I vP 41 ROCHESTER GAS AND ELECTRIC CORPORATION PROCEDURE NOo GINNA STATION CONTROLLED COPY NUMBER P-/7 7 7 /~yeah'( /F-7 ~Q H/W~4 REV. ZO. ~7 Cg, GP Pc.U '29M ll53 Pc.v P''l T'l55 PORC REVIEW DATE pc. w ir'l T',l 'i 5 7 J= Pc U. 8'0 l ll 5) P,c.& R'9~ 1'l 4k PLANT SUPERINTENDENT qcu 'Fj ~ ll 45' 9707310iSB'970725 PDR ADQCK 05000244 P PDR NON-QA EPFECTIVE DATE CATEGORY 1.0 G)NNA STATlON aZVXZWED >Y: mIS PROCEDORE CONTAINS ~ PAGES FOR 8 &T USEONLY~ ~ootoOro rO Qnp v lEOOQZZ ~ Treading ae! guet RecooE 'TART: . pAT2 FE" VlMa ~~', C{) A) Q+ iED. gATE yS TlME'-

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Page 1: Revision 37 to 'Hydro Test of Reactor Coolant System

(I vP

41

ROCHESTER GAS AND ELECTRIC CORPORATION

PROCEDURE NOo

GINNA STATION

CONTROLLED COPY NUMBER

P-/7 7 7

/~yeah'(/F-7

~Q H/W~4REV. ZO. ~7

Cg,

GP

Pc.U '29M ll53Pc.v P''l T'l55

PORC REVIEW DATE

pc. w ir'l T',l 'i 5 7J= Pc U. 8'0 l ll 5)

P,c.& R'9~ 1'l 4kPLANT SUPERINTENDENT

qcu 'Fj ~ ll 45'

9707310iSB'970725PDR ADQCK 05000244P PDR

NON-QA

EPFECTIVE DATE

CATEGORY 1.0

G)NNA STATlONaZVXZWED >Y:

mIS PROCEDORE CONTAINS ~ PAGES

FOR 8 &T USEONLY~~ootoOro

rO Qnp v lEOOQZZ~Treading

ae! guetRecooE

'TART:.

pAT2FE"

VlMa ~~',C{) A) Q+ iED.

gATEyS

TlME'-

Page 2: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 3: Revision 37 to 'Hydro Test of Reactor Coolant System

PZ-7: 25

@ +~w- C~ayy-r '7-P'TA VT-2 Visual Examination of the Reactor Coolant

zypfzz and items listed herein shall be completed at the pressure indicated. Noleakage shall be allowed ~+augh pipe, vessels, or valve bodies Lea3cage throughpacking, flange gasketing, etc., shall be noted and gmmtified, if possible, for

evaluation by operations or Plant Supervision. If test performance isnot fox. 10 year hydro, mark N/A in 2352 psig inspection completed column.

INSPECTION929XZZK

2352

ps'.

2 ~

3 ~

4 ~

5 ~

6 ~

7 ~

8 ~

9 ~

10.11.12.13

17'8.

19.20.21.22

'3

'4

'5.

26.27.28.29.30.31.32 ~

33 ~

34'5,

36.37

', 878B

878D

RCS Loop A Hot Leg to Steam GanaratorRCS Loop A Hot Leg Safety In]ection Line to V878HRCS Znop A Hat Leg RHR Line to KV 701RCS Inop A Hat Leg Sample Line to V998RCS Loop B Hot Leg to Steam Generator

-RCS Loop B Hat Leg Safety Infection Line to V878PRCS Loop B Hot Leg Sample Line to AOV 955RCS Znop B Hot Leg Ctmxging Line to V9315RCS Loop A Crossaver PipeRCS Loop A Crossover Pipe Instrumentation LinesRCS Loop A Crossaver Pipe Drain to V523 and V541RCS Loop A Crossaver Pipe Excess Letdown Line to HCV 123

Inop B Crossover PipeC tp ~tt Lt

RCS Loop B Crossover Pipe Drain to V540RCS Loop=8 Crossaver PiPe Letdown Line to AOV 200A, B, 202RCS XDOP A Cold Leg to Reactor Coolant PumpRCS Loop A Cold Leg Safety Xn)ection Line to MV 8408, V842RCS Loop A Cold Leg Alternate Charging Line to MV 392BRCS Loop B Cold Leg to Reactor Coolant PuxpRCS Loop B Cold Leg Safety In)ection Line to MV 839B, V842ARCS Loop B Cold Leg RHR Line to MV 720RCS Loop B Cold Leg Charging Line to V9314PressurizerP i* ~tl LIPressurizer Surge Line to RCS Zoop B Hot LegPressurizer Spray Line to RCS Loop A Cold LegPressurizer Spray Line to RCS Loop B Cold LegPressurizer Mini Spray Line araund PCV 431APressurizer Hixd. Spray Line around PCV 431BPressurizer ~liary Spray Line to V9313Pressurizer Stoaa Space Sample Line to AOV 951Pressurizer Liquid Space Sample Line to MV 953Reactor Vessel to NK 852AReactor Vessel to KN 852BReactor Vessel Head Vent Line to SV 590, 591Reactor Vessel Level Instrumentation Line to V599

ctor Vessel Head Closure Seal Lealcoff Connections

Page 4: Revision 37 to 'Hydro Test of Reactor Coolant System

0

Page 5: Revision 37 to 'Hydro Test of Reactor Coolant System

rr-7:26

&~. /0> pd. y+'7

X8 A VT-2 Visual Examinatj.on of the Reactor Coolant,S'r and items 1 isted herein, shal 1 be completed at the pressure indicated No

,e shall be all~ through pipe, vessels, or valve bodies. Leakage through

pac~, flange gasketing, etc., shall be noted and quantified, if possible, forurther evaluation by Operations or Plant S~~ision. If test performance is

not for 10 year hydro, mark N/A in 2352 psig inspection completed column.INSPECTIONQSHIZe

2352QSSQ

39. Accessible surfaces on the Reactor Vessel Head40. Reactor Vessel Incore Penetrations in Sump A,41. Check all accessible ma)or components for leakage (i.e. Reactor Vessel, Steam

Generators, etc.) within the Reactor Coolant System Boonhey, which wer~eotmentioned in preceding steps.

REMARKS:

Inspecteti By: @2, Level I Inspector

'perationsPersonnel

Materials Engineering Supervision

Reviewed By:QC S~~ision

Date: 5 P I~

Date: o 8 /2S'ate:

0 2 8

Page 6: Revision 37 to 'Hydro Test of Reactor Coolant System

~ 's~ ~

Page 7: Revision 37 to 'Hydro Test of Reactor Coolant System

Enclosure 3ISI UT/PT Inspection on Bi-Metalic Wleds

1979 = Penetration 26, 27, 34

1988 = Penetration 16, 32

Page 8: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 9: Revision 37 to 'Hydro Test of Reactor Coolant System

ROCHESTER GAS AND EL ~IC GINNA STATION

1979 INSERVICE NONDESTRUC AMINATIONS SUGARY REPORT

gv w

t Ppl

Examination Area Page Examination ProcedureIdentification Number Method Number/Revision

ExaminationSheet Number

CalibrationSheet Number

IndicationsNo Recordable Insignificant Geometric Other Remarks

826-27 & 34 104 UT SWRI 800-57/0 45'-1012

45 -101145'T-1011001000110012

01293SS Side01292Inc. Side0005OLS60Attn

X

PL-FW-XI-PR 105

RC-1000-LSW-1-PH 106

RC-1000k-PR 107

AS-1001-23-PR 108

RC-1000-HSW-1-PR 109

PL-FW-XII-PR 110

RC-1001&-PH 111

AS-1001-13-PR 112

AS-1001-9-PR-1 113

RC-FWW-PH-I 114

SI-100SKSW-I-PH 115

VT

VT

NDE 100-1

NDE 100-1

NDE 100-1

NDE 100-1

NDE 100-1

NDE 100»1

NDE 100-1

NDE 100-1

NDE 100-1

NDE 100-1

NDE 100-1

20061

20066

20064

20067

20065

20060

340136

340168

340177

340147

340134

X Pipehanger HalfInstalled perDrawing QCN $ 14

X Pipehanger notin locationshown onDrawing QCNE13

X Pipehanger notbuilt perDrawing QCN815

Page 10: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 11: Revision 37 to 'Hydro Test of Reactor Coolant System

'' -ROCHESTER AND ELEC TRIC.... INSTRUMENT CALIBRATIONRECORD - - —— Shoot, No. 1293

hlaint.. Proc. No. Locatio ~I .-

ft-M/h/t'~ ~5(iADate: -S-N Time: ($1 clock)

~Pa ~ CALI'BRATIOH VERIFICATION

Examiner I

,5.~c Oc(cc~S NX, leevel Inst,rument I

Dronson 303 Q Sonic htkl QExaminer.

I

SNT Level Serial No.-\ a

."7 /'I"c'"Shag a gdh

g / ~.I +h')a-,St... 98~. > .AD

SEARCH UNITS Verification lllk S/Nl

Itev:

Time:

Initial0

Q qg,xt C<yI

Q p wai.er p oxoaee gf i 'er~t

Examination. Area".

Nominal Angle

hleasured Angle

Z Q-G hfeasured Angle:

Signal Anplitude:,'D(("~ JQQQ Og))~ QrCJ /Jg AQ.

Sl Oihtanufacturer I Se rial Numbor I (Screen Divisions)

SleetNominalAi e uency(htlIZ)

Signal Distance(in):

Screen Divisions

Coarse llangel

db coarse:

db fine:

'i

n, . v e5 t/eO I d. bJd

ETT IHGSIHSTRUHENT S 100Remarks:

Itejectl .

Dcc:

Fine db:

80

60

AJ W/ X,r/ag g Q>Wg'AC ~aee c/// c>

Coarse db:

Freqttencyl

Dolay I

hlat'-I Cal:

Itange

'amping:

Bep llatel

Video:

lilI t,er:

I cflgt,h I,

Type:RGdt: ROSR ~ COO I

7 Ctt g.

g/Qii,'ct

'ex

S.U. CABLE

40

20

02 3 4 5 6 / 8 9 10

'screen division = in. of metal

Long Shear ~4

Basic Cal. Block Nol (' .' ,0}toviewed by:

O ~ C, RlVIIW I ttllCRI." RSOUIRSOI

SNT Leve

Date:

I" 'I.'-4 7X '

g w ' e r - ~

Datet

REV. 6/7og

Page 12: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 13: Revision 37 to 'Hydro Test of Reactor Coolant System

A JVDROCHESTER G&. AND ELECTRIC

ULTRASONIC PIPE WELD EXAMINATIONRECORDSheet No. 1013

Job No; Location. ~C«.tI*'~ 4 rADate: ', Time (24 hr el~a7-5=0 ''I

Thickness (Nominal) Diameter (Nominal)

System:

(ov,Trz.'cw:,I(::)QPiiu-" Iq~ g,'g(.

Examiner'.

,$g-C

Indentification.

SNT Level Lo 'Location

II~ 'Tp

Wo Location

Wel Length:

/2. cExaminer:i8'~ iglircg.lioc/5

SNT Level

~PAngleUsed 45" 45 T

60'eld

Type: (—Flow~)

I~~' V

Remarks:

Procedure No:

'.MQ/ DC) -5 9Rev.: Calib Sheet No:

p> f2. Ir pScanningdB

Examination Area Limitations (If none, so state)

I ND.NO. of

DAC

SQX DAC

WI Mf

W MAX

W2 MP

50% DAC

MP

L

50» 100%DAC DAC

MAXDAO

L2. 50%DAC

DAMPS tIF YES, EXPLAIN) REMARKS:IN.'I

L/ II

ac)

Ac

/<CD tc'>

d/+C3

FS

a f ~ m ~ q'I + I ~ %ill ~ I * II

Reviewed by'.

- QC Review (Where Required)c c~ SNT Leveft i'I Date. 2 -4=> 5

Date

a5 70 IIIQ $ 78

Page 14: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 15: Revision 37 to 'Hydro Test of Reactor Coolant System

r, ROCHESTER AND ELECTRIC

-INSTRUMENT CA BRATION RECORD

hfaint. Proc. No. Location:Q'I<tr4 C< Q IA

Date: Time: (24 clock)R-.5-") '(.

='CALIBRAT ION VER IF I CAT ION

Examiner I

I ) I= Lc- (.7SN T I<evcl Instrument:

Bronson 303 Q Sonic hfklTime:

'

Lxam incr:

Nominal Anglo

; ) AE;E )E.) 2-'t 5SEARCH UNITS

SNT Levol Pj.ocp~d

AJg> gc.r.- a g

Serial Nor .

hfeasured Angled

Verification Dlk S/MI ..5 QC. ~

Initial

Q water Q exos<dn

Examination Area:

other+~ ~~Ud speci fy

hfeasured Angle

hfanuf'acturer:

. -tL)di2

rial'umber...Signal hiplitudd

(Screen DivSsions)

Signal Distance(in) I

I 41/Ig.

nJ ztAE,C- »E

' 'c.c

Size:NominalFre uenc (hfllZ)

— INSTRUMENT S ETTINGS

Screen Divisions

Coarse Range:

<fb coarse:

db fine:.

100

'c, Vvc t..Rek Ho~a~A Pc eS t ~e.

Bar '«g.8. v ~'ld-Id

Remarks I

Reject:

Dec:80

«P~H )~.an 5

'.e. '>A 0

Fine db:

Coarse db:

Frequency:

Delay:

hfat.'l Cal:

Range: n r<

60

40

20

0;1 2 3 4 6 6 7 8 rI 10

a.~ ~ Qc IOI I D

'f> 'frgr~ )t 'nt I'I I g' ~

Damping:

Rep Bate:

Yideot

Filter<

'Ii ')</.

< tj

/c~ 'creen division ~ > in. of metalc

Long + gnnnr ~Basic Cal. Block Not ') IA)

r \ r n n '

lrength:

Type:RGdE .RDKR ~ GOO I

S.U. CABLE

~ /

Boviewcd by:

<I ~ C kLVIIw twIIERE REOUIRrD)

SNT Level~ Date:

Date:3'-C-

REV. 6/77 45 '2

Page 16: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 17: Revision 37 to 'Hydro Test of Reactor Coolant System

Aivo

ROCHESTER AND ELECTRIC

ULTRASONIC PIPE IELD EXAMINATIONRECORDSheet No. 101 1

Job No: Locat la iZr .> -5=7 7

Time (24 hr clock):'2~~ C~

Cr'ys

tcmI''i

s~PPCs(. 4<:(~ ~%.1~i. g.'ine:

c«> ~/'«-"ct«'Z«0 ~e:">gIndentification.t

'>~(jThickness (Nominal) Diameter (Nomina I)

gj 5/

Remarks:

Weld Length:Cr'I~~

'

Weld Type: (—Flow~)

Examiner.'rocedure

No

Alr3P

PEi r.=. Ci

Rev«

SNT Level

. SNT Level

Caltb Sheet No

Lo Location

AngleUsed

ScannIngdB

+c

60"45 T45'7$

Wo Location

«««Ql.««/p«

Examination Area Limitations (If none, so state)g'Qi'ND«

No. OFDAC WI MR. W2 MP

50K DAC W MAX 50% DAC

W2 MPD C50%

DAC MAX

L2100'5 ,'50'LOAC DAC

DAMPS 1IF YES, EXPI AINI REMARKS:IN I

J sI

~ W«

(-(« -Mc /CC'(

I'(c. w J

7-ic c 5'-')>j>

.(..I fC,

p~ ('('i .". ~c'( A ('Cc (r.r, ~ f Z5"

« i'c~< SI« ~ ~ -I ~

It1' g., to ~7/ Reviewed by ~ZrM ~'

'SNT Level'~~a Dote: 7

Date:~ «i> ~ ~ t > ll t ~ 1\) - QC RevIew (Where Required)

gs 70 A)rg.)P/76

Page 18: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 19: Revision 37 to 'Hydro Test of Reactor Coolant System

R AIVDRochester'Gas 'and ic Corporatiori

INSTRUMENT CALIBRATIONRECORD FOR

ATTENUATION/LAMINATIONEXAMINATION Sh.'. N.. 0005Maint. Proc. Ho.— Location:

r'"=rara<'w. i 'A Date: .

"0 0 l Calibration Veri%cation

Exa minor

AE O)=dr 0SNT Level: Instrument<

Branson I ]'onic MKl M Time<

Examiner:

SEARCH UNITS

SNT, Level Serial,No<- .

~//C)C~

Parce+«tp ~, Rev;

F<~~"~ > C3-YER.IFICATIOH BLOCK 5/N

In i t ia Is!r

Water Exoscn Other~~~

'rand

Size

HominalFroquoncy -~-

0u

(L.S.)

Seriol Number

0u

(ATT.) 5 < gna I Amplitude(Screen Divisions)-

SignalDistance (in

Screen Divisions,'ourse Range

dB IN.

0'L.S;)

+~ 5:0'ATT.)

+Or(tI4/

c'G-, Iry+5

7c

Examinatfon Area

C~~Pi (1 4 rPci t.A ~ y r=A<'3

Q Mc-

Gain

Frequency

IHSTRUMENT SETT ING.P ~

BASIC CALIBRATIOHBI.OCK NO.. Q A.O-SS -W -. 4,S< -28-E-

/clayMatl, Cal

Rango

Domplng

Rep Rate

Ro(oct

Filter

-- c'4. 6'.7

LONGITUDINALATTENUATION

1st. Echo

2nd. Echo ~

<qC fr<

dB

dB

<P< ~

lines of Amplitude

linos of Amplitude

(1st. - 2nd. Echo)

t'Scroen Divisions

Inches of Metal

Mode: Lon itudinal

Romarks<

><r- ~ Cr r'c r~~i<"l

Vr rC< ~

kc '(I, No Or'ld

Codl

lri ""» -r=~ ~ ~ . ~

I< ~ <) ':' ( 'i

Reviewed by

QC Review (Where Required)

SNT Level Dator

3-C ->fDate:

42 tsc

Page 20: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 21: Revision 37 to 'Hydro Test of Reactor Coolant System

0A IVD

jROCHESTER GAS Ar ELECTRIC

ULTRASONIC BASE METAL LIMATIONRECORD.-Sheet No.

Maint. Proc. No.:

System:

ge Lrpr< C ( y+QC~Q Q tC ( 4 t +wyr I/t

Location: fr..V~«Line:

Pg mFri'C'I <.-ACCT

Date.

Identification:

~,>Irt'ime

(24 hr clock)7

Thickness (Nominal)

Weld Length:~. 7c.

Diameter (Nominal) Examiner:

Q P i;D(-„LL~(~

Examiner

Btd, Pl,4'roe,(e;

SNT Level:

SNT Level:

Lo Location:

Attenuation

Do n

Wo Location'.

4„c, *c ((.g

Weld Ty e ( Flow ')

rV'Procedure No:

IU<9% -.UC -6)'ev: Calb. Sheet No

Qc(! 4Remarks: Measured Thk.

DownCrown HeightII4p2I1 ~ < c-C'~

Crown Widthr/

Examination Area Liinitations (lf none, so state) A DOEL,

t IBBr

r4

LOSSIIO. OF

BW

I NO

AMP

Fs

POSITION 'I POSITION MAX

L W W2W2 MP LM W I

POSITION 2

MP L WI W2 MP

SEARCIIu NIT

REMARKS:IH I

+JL J= We

"I =C (),c~ -. s aa.

~ ~

~~ I 3-8-7F

Reviewed by:

QC Review (Where Required)

SNT ) evekgrx Date: g-gpp'ote:

BB BO Aev 2/7BIog

Page 22: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 23: Revision 37 to 'Hydro Test of Reactor Coolant System

*-

ANO'ROCHESTER GAS A LEC TRIC

ULTRASONlC BASE METAL LlMATlONRECORDSheet No.

Maint.-Proc. No.; Location:q-t.~', tJ C. w;

Line.'<.~pic;.C —. r(c.c

V'ystem:

g~„~;P~.C gijjAPio+ +icrsrN6-

Date- / c'q

Identification:. '-

Time (24 hr clock)Q C'P

Thickness (Nomina I)~ I

'I

Weld Length'i'2.'7d'

Weld Type ( Flow )

kQQg /

Diameter (Nominol)

8/Examiner'.

5.g c- Qig<E,- 0

Procedure No:, Rev:

SNT Level:

SNT L~ev I:

Calb. Sheet No:

Lo Location:

Attenuation

~ )

Wo Location'.

g„j:cv(Ag

Remarks:

IN D

NO,LOSS

OFBw

I NO

AMP

FS

POSITION I

I I WI W2 MP

POSITION MAX

LM Wi W2

Examination Area Limitations (If none, so state)

MP

POSITION 2

w W2

~Lr~a~.

MP

SEARCHUNIT

Measured Thk.Down

(5m .C'te

REMARKS:

Crown Height~hIWCCrown Width

tr

IN I

«'/<5

J

+~I J W

W

6" S ~c )

II; I,.

I I I ~ t ~ ~

Reviewed by:

QC Review (Wheie Required

SNT Level:~Date:

3 -d-g5

AS 09 BEY ~ 2/7~ro /

Page 24: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 25: Revision 37 to 'Hydro Test of Reactor Coolant System

AHOROCHES7ER GAS dIb LEC7RIC

ULTRASONIC BASE METAL LIMATIONRECORDSheet No.

Maint. Proc. No.'; Location:Cs I-4W~ S rH.

Date: Time (24 hr clock)

System:

( ebdl/Ie'd e F\ f~P/cled t5cldve

Line

go m iv"vive: d- yv.e~Identification

O'A'7Thickness (Nomina I)

5/~Weld Length:

Jg.;>z

Diameter (Nominal) Examiner:

g.y C +,~g,-" O

"",'~~ Dip/~ly ~S

SNT Level:

SNT Level:

Lo Location:

Attenuation

DownUp,

Wo Location:

g' r- u.c-tcO

Weld-Type ( F low )l~yr'- WARemarks

Procedure No'.—

@-0 -+ 9Rev:

Measured Thk. Crown Height

Calb. Sheet No:

C.x.m

':g

<Ia.Crown Width

erI

Examination Area Limitations (If none, so state) / Afdc

IKONPe

I NO

LOSS AMPOFBW FS

POSITION I POSITION MAX POSITION eI

wIW W2 MP LM WI W2 MP L WI W~ MP

SEARCHVNIT

REMARKS:IN I

'b+~'We

W

Wb

/c'.L w '~ i'

'~ ~ y~ ~

g-C =79e

l'e" r

Reviewed by:~QC Review (Where Require

SNT Level:

Date:

as-00 Rev ~ 2/76po y

Page 26: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 27: Revision 37 to 'Hydro Test of Reactor Coolant System

2 ILQ~X

(3/2 CONTROL ROO MECHANISM IIQllSINO ADAPTERSCALE R = I2

Z .en TNX WAI.L ~

A

CONTROL ROD MECHANIStvSCALE 6 I2

~ S„C

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<faI

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J

END TYPE K 'ND

FOR TYPE DF KIID-qSEC TABLE II

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MACHINlNG OF CONTROL ROD fv1ECHAN JSM — HOU51NClSCALE Co I 2

WIRE SIZE- .II548 DIA.FOR THD. IHSPECTIO'4—

FOR THD REMOVALSEE DETAIl. Ig-

j.vA

<J)O

H4Ji''3,C a oo2 IR

BEFORE PLATING

8EGIHH<NS AT POINT WHERE THREADRONS OJT AT R'337 DIA., REMOVEIMPERFECT

~HUACA')5

FOR ? 5'PP

I oi/

Page 28: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 29: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 36: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 49: Revision 37 to 'Hydro Test of Reactor Coolant System

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Page 51: Revision 37 to 'Hydro Test of Reactor Coolant System

Enclosure 4Ginna Strategic Plan

The purpose of the Ginna Strategic plan was to provide crackinitiation and growth predictions for Ginna CRDM nozzles andcombine the results with a an economic analyses which could. beused as the basis for addressing the CRDM Alloy 600 issue atGinna Station;

The Strategic plan u'ses a combination of Finite element modeling(ANSYS 5.0), Statistical Analysis and a computer program whichevaluates alternative strategies to address the CRDM issue, CIRSE(CRDM Nozzle Inspection and Repair Strategic Evaluation).

The finite elements analysis utilizes Ginna specific datasupplied by BEW Nuclear Technologies, in 1994. This includedGinna specific list of materials, material certifications, listof welds, welds data-sheets; procedure qualifications, weld wirecertifications, applicable fabrication drawings, as-builtdrawings and contract variations.The statistical analysis using a Weibull distribution approach isperformed using the industry inspection data provided by pastinspection experience, including the sample plant inspectionwhich included the same heats of material from the Ginna vesselhead. Differences in material susceptibility, stress andtemperature are addressed. Note that the analysis conservativelyassumes a crack occurs in the sample plant inspected (whichcontained the same material heat numbers as Ginna) immediatelyfollowing the inspection.

The CIRSE model utilizes the information developed in the finiteelement model, the statistical analysis and,others to evaluatethe alternative scenarios for responding to the issue of CRDMnozzle cracking. The program input and output are processedusing EXCEL. The analysis approach consists of: establishing theinput parameters, predicting crack initiation and growth at eachplanned refueling outage, assessing the total number of nozzlesrequiring corrective action at each refueling outage, calculatingthe cost of any planned inspections and remedial measures plusany required repairs at each refueling outage. Present worth ofthe future costs are also tabulated.

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