ML17291B162

Rev 9 to Procedure Qci 6-4, Ultrasonic Exam Feedwater Nozzle Inner Radii.

ML17291B162
Person / Time
Site:	Columbia
Issue date:	03/06/1995
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17291B161	List: ML17291B160 ML17291B162
References
QCI-6-4, NUDOCS 9512180151
Download: ML17291B162 (22)

Text

No A WASIIINGTON PVSI IC POWEA SUPPI Y SYSTBM QCI 6-4 Rcv. No.

Effccuvc Date NDE dk I INSTRUCTION 3I20I95

//YES + No ULTRASONIC EXA1VHNATIONFEEDWATER NOZZLE INNER RADII 1.0 P RP E AND P 1.1 This procedure defines the requirements for manual, pulse-echo ultrasonic examination of the feedwater nozzle inner radians, (Zones 1, 2, and 3), ASME Section XI, Category B-D. Scanning by this procedure is done from the reactor vessel O.D. wall and nozzle surfaces using refracted. shear wave search units, Figure 1 illustrates the Zones which can be effectively scanned .from the outside surfaces of the vessel plate and nozzle, 1.2 This procedure covers the angle beam shear wave technique that is unique to the nozzle design. Specific refraction angles have been determined by individual nozzle geometry as depicted in Figures 3a, 3b, 4 and 5.

1.3 This instruction is intended to meet the requirements of Sections V and XI of the ASME Boiler and Pressure Vessel Code (1989, no Addenda).

1.4 BWR Calibration Data listed in Table I have been predetermined from the Supply System's feedwater nozzle mockup so the qualified examiner need only use the vessel 2.D ~S None calibration block representing the shell course containing the nozzle.

3.0 ~EU NT 3.1 Personnel ualifications 3.1.1 Contractor and Supply System personnel performing examinations to the requirements of this instruction shall be certified to at least Level II in ultrasonics in accordance with the requirements of Reference 7.2. Additionally, the examination team shall consist of at least one Level II or Level III in ultrasonics qualified using the Supply System BWR feedwater nozzle mockup and this ultrasonic examination procedure per paragraph 4.3.

CIKClKDBY/DATE r'-C -e~

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SUPERSEDES ISSUE: (

Rev. 8,Mated 03/10/93 PAGE I of 21

~.QCVQCI I 9512180151 951208

...PDR FDR 9

ADOCK 05000397

QCI 6-'4 Rev. 9 3.1.2 Personnel not specifically qualified on the BWR feedwater nozzle mockup, but designated as Trainee, Level I, II or III UT may assist a qualified examiner in performance of examinations to this instruction.

3.1.3 At least one person responsible for reviewing the results of the ultrasonic examination shall be a Supply System person certified as an ultrasonic Level III in accordance with Reference 7.2.

3.2 1 ni Instrument 3.2.1 The pulse-echo, ultrasonic flaw detection instruments shall be equipped with a stepped gain control, graduated in units no larger than 2 dB. Examples of instruments considered acceptable for examination are listed below.

Krautkramer USIP-11

. Krautkramer USL-48 f

6 3.2.2 The pulse repetition rate of the instrument shall be set between 250 Hz and 2000 Hz.

NOTE: Pulse repetition rates are automatically set by the Krautkramer USL-48 depending on the selected sweep range. The Sonic 136 automatically sets pulse rates in the selected sweep range unless changed by the operator in /'epetition the "special" menu.

'.3 Transducers 3.3.1 Single element ceramic transducers, having an area of .44 to 1.0 square inch, with a nominal frequency of 2.25 MHz shall be used with specific wedges as shown in Figure 2. The refracted angle within the material shall be within the limits shown in Table I. Additionally, data may be taken with other transducer sizes, frequencies, wave modes, and angles, after completing the examination to the above requirements.

3.4 ~ale - The maximum length of cable shall be 25'or type RG-174/U with no more than one intermediate connector. The maximum length'of cable for type RG-58 shall be 100'ith no more than 2 intermediate connectors.

3.5 Qgygi~lan - Soundsafe by Sonotech, Ultragel II, glycerin, or a glycerin deionized water mixture may be used as the liquid couplant. Other couplants may be used provided they have been approved by the plant.

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38. 8 UND BE.4hl GE ME nY INNCc~ E FOR ZCNE 1 FIGURES 3A and 3B Page 12 of 21

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0 QCI 6-4 Rev. 9 SCAN AREA ScCTIONAL VIEW OF NO~ BOOY FiGURE 4 SOUNO BEAM GEOMETRY-ZONE 2 FIGURE S SOUND BEAbA GE Ll~iRY. ZONES SF'ICNAL llEW CF NO@ ' CY':NOE.-.

FIGURES 4 and 5 Page 13 of 21

QCI 6-4 Rev. 9 NOZZLE NUMBER LOCATcO ON TAPE LINES MARKEO ON NO&LE SOOY RADIALLINES EX-,ENO AT LEcAST2 PAST REr CIRCLE 304 3Mc C:RC'=

3CC' 50'ONE >

2P57 X ~

2-I 04 255

.05'en n4 C

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%4 335'BC

804 C,CM)

FIGURE 6 NOZZLE MARKING PLAN Page 14 of 21

V QCI 6-4 Rev. 9

'A SUPPLY SYSTEAI ULTRASONIC CALIBRATIONSHEET 2one I Cal fbratfon tRoltcTI NNP-2 SYSTtM RPY SHttT NO.R 503 CXAMINKAI J. Smfth LEVELI II CATER 2 15 95 THEIIMOMKTCR5012 4812 ExAMINtRR A~ 8rown LEYCLI III INSTRUCTION No 2 OCI 6-4 REVI5IOHR 0 RG-1746 NarisoniZP"~~ CASLE TYtE SERIAL MVMSCR UT 120 ~RR ~

t ZIR 2599

' ' ZRZ 16'KNCTH 6.6" .25 Soundsafe 1 H IC KN K 55 SWE tt IN ,zz 9 9 2 TEMtERA'TURK 80 AIN IM 04 ACTUALANCLK 70 SATCH <<o. 20922 CHART RCCOAOCR TYttl N IA VT IHSTRUIICMT TYttl Sonfc 136 34643 IN5TRUMENT CALISRATION tREVIOU5LY tERf CAMEO ON CALISAATIONSHECT NUMSCR SCRCKN HtlCHT LINEARITY SCRECN HCICHT LINEARITY AMtLITUOECONTAOL LIHEAIHTY fOR CONTINUOUS CAIN CONTROL fOR 204 STEI'AIN CONTROL LITVOK X I0 100 10 40 TO 40 40 lo 10 20 ~4 92 0 2 A A Q 10 12 Ii 949 CHANCE ~5 ~ 11 Low 50 45 KS 34 29 25 20 15 HICH 40 4 REAOINC X Low 50 to 31 25 20 15 13 10 8 LIMITSX Lt ~ 1l Sl ~ tt Sett INI'IIALCAL TIMEI SYSTEM CALISAATION flNALCAL TIME>

INSIRIPlKHT SE'TTIHCS Rtf LtCIORS AMtLI 1UO XfSH t SWttt At*CIRC SCIIE CN OAC tRtSENTATION C*LCHKCKS IN INCHES COAASE RANCE NI A 34 NOOK SOZ 17.0 09:39 J.S.

BAILIE OELAY COARSE N(A ft NOOK RANCE SALES 10 lt HOOK OKLAYCALIS 15 ~ 7 lt Moot fRCOUKMcv " 2.25 ft NOOK CAIN IN RAR 72 IS NOOK DAMtlMC IS MOOE REJECT - of f K II I SEARCH UIHT AXIAI R OAIKHTATIOH IK RRRKX N A WCLOSOR tART5KXAMINEO 0 1 2 1 ~ 4 4 10 fvLL5cRcEMSwtct 10" f14 to 2415M.

AKYIKwtosY LEYEL IHR L~ 8l'een CATCI 2) 15 95 RKYIEwto 4YR J ~ Jones OATS 2)IS 95 fl ~ Rll ~ ~

FIGURE 7 Page 15 of 21

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QCI 6-4 Rev. 9 WASHINGTON PUBLIC POWER SUPPLY SYSTEM ULTRASONIC EXAMINATIONDATA SHEET - NOZZLE INNER RADIUS Rltonl No.I 1RPU-124 tsoIECTI MNP-2 YSTCMI RPY sI oRAIIUIO Ho.5 RPy-JPJ OCELCOESCRIt<<OH5 Reactor Feedkater Nozzle Inner Radius and Nozzle Sore N4-150-1R, N4-150-NB 5IATCRIALTYtCI Carbon Steel OHC NO.5 ONC HO.I 2 OIIC ko.5 3 o.otscAHOIRESTIOHS5 2 each zone iCM and CCM) ATC5 ATCI AIE5 2 15 95 2 15 95 2 15 95 5ksTRUcllok No.5 PC 6 4 EYIEION5 9 IMCSTART5 IME S TARSI 1 P94P JP53 TWE STAR'55 XAMIHCR5 J. 5EIIth CVCLI ll IMC STot5 1050 IMC STot5 1113 IME STot5 1129 A. Srokn CVEL5 111 TCMt5 SP t ART TEMt5 SP ART TCMts SU I. ETAHOARo Ho.I UT HICKNESS5 L EHlll Ho I ISO 5P3 70'RT L CHEST No.5 504 L CHEST Nou 5P5 ACCltTAHCE CRITCRIA5 LEI CLE5 25 LC5 25 IHOICATIOH ~ OIAR AZUIUTH D AMtL IT Vol METAL SCAN HUMSCR RCSCRlNCE ICCH) OISTANCt 5 ESH tATH ICH OR CCNI 45 2.25 1.25 90 14.75 CM 315 3.2 3.05 65 15.04 CCM 2.6 2.2 70 17.8 CCM 85 3.2 3.0 75 17.7 CM I4-30-JR 0 - 360 - No oth recordab e indicati ns-I4-30-NB 0 - 360 - No rec dable ind cations- 2, 3 5IEVIEI5CO SV LEVEL HI5 ATE 5,2 I 15 I 95 EVICWEO SY5 ATC5

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FIGURE 8 Page 16 of 21

ZONE I RE~ RENCE CiRCI.ES QCI 6-4 345'5'0 Rev. 9 300'0

~

315>>

270'>>

295>>

255 5>>

05'0>>

35' So>>

65'igure 9A CIRCUMF:-RENTIALAND RADIALSCANNING 40NE 1 PEPERENCE CIRCLES ZCNE 1 REFERENCE A CIRCLES ScbiV SCAN P4 i r.'S Xccr ccinmr W+

PA <.-'.S .c~c Sere Xcc:Bet. y fiYPC L p ri Qkr,'1

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3cre I L i SC4N IN CW AND CCW DIRECTION SCAN IN CW biND CCW DIRECTION j

CIRCUMFEQQJTIA SCAiVNING AC i iCiV (MCVING AZlMUirI5C4N PA ir.'S)

RACIAL SCANNING MOTION (FIXED AZWUTH SCAN P>THS) r 'gt'N 98 Ftgccs C FIGURE 9 SCANNING MOTIONS FOR THE ZONE 1 EXAMINATION Page 17 of 21

QCI 6-4 Rev. 9 0'5'4 ZONE 1 REFERENCE CIRCLE,

~po 90 60'IST iVC" (0)

AZ.'LIUirl(A)

RE.-= %ENCE CIRCL=

NOTF.

AU (A) MEASUREMENTS SHALL BBiIN COUNTER CLOCKWISB DIRECTION FROM NEAREST RADIALUNE.

ALL(D) MEASUREMENTS SHALL BB FROM REFPJtENCB CIRCLE RADIALLYOUTWARD. I

'IGURE 10 MEASUREMENT CRITERIA FOR RECORDING UT Page 18 of 21

v QCI 6-4 Rev. 9 AZ(C A)

Far 0 distance measurerhent See rrgure t2 Mid Radius Scan Width (x3cP~)

acius -nd HC ZZLE CRCSS SGCTlON FIGURE 11 REQUIRED SCAN PATHS AND MEASUREMENT CRITERIA FOR ZONE 2 EXAMINATIONS Page 19 of 21

QCI 6-4 Rev. 9 CIRCUMFERENTIALSCANS SHAI 'E MAOE IN TWO OIRECTICNS AROUNO THE CYLINOR(CALScEC c cON OF THE NO~c FORGING MEASURE '0 QISTANCES FRCM GREAK POINT ON NOZZLe EFORGING (TOP)

SIDE 'llEW CF NC 27C4 ggO I

I ao.

Reference Az lines are each 15'round the nozzle. All Az measurements are made in a counterclockwise direction from these lines to the index mark on the search unit. View made looking toward the vessel.

FIGURE 12 ZONE 3 SCANNING AND LOCATION REQUIREMENTS

'Page 20 of 21

QCI 6-4 Rev. 9 0 15 30 45 315 330 3CO 50 285 270 90 255 05 120 21 19 lo5 1 5 lao Plot of lndlcation(s) for nozzle No.:

Report No.:

Scale 1/4 FIGURE 13 Page 21 of 21

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