ST-HL-AE-1362, Eddy Current Exam Manual for Houston Lighting & Power Co, 1985
| ML20133B179 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/21/1985 |
| From: | Brooks W BABCOCK & WILCOX CO. |
| To: | |
| Shared Package | |
| ML20133B176 | List: |
| References | |
| PROC-850821, ST-HL-AE-1362, NUDOCS 8510030063 | |
| Download: ML20133B179 (74) | |
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Enclosure ST-HL-AE-1362 Page / of 74
\ EDDY CURRENT EXAMINATION MANUAL FOR HOUSTON LIGHTING AND POWER COW ANY South Texas Project Unit 1 Location: Eight miles west of Wadsworth, Texas IE Docisnent No.: 85-030 Issued: August 21, 1985 Revision: 0 OWNERS: Houston Lighting & Power Company ADDRESS: South Texas Project City Public Service Board P. O. Box 1700 of San Antonio Houston, Texas 77001 Central Power and Light Company City of Austin B&W Reference No.: 647-0009
.k NRC DOCKET NUMBER: 50-498 REACTOR SUPPLIER: Westinghouse Electric Corporation GROSS GENERATING CAPABILITY: 3425 MWT EXPECTED COMMERCIAL OPERATION: June 1987 Prepared by: Reviewed by: Reviewed by:
W. E. Brooks W. D. Minton G. W. Bryant ISI-TA, SPIS ISI-TA, SPIS SGFS, SPIS Approved by: J // ///d Date: 7 E/ 5' L. HPBy, Mg'r.# Steam Generator Service Eng1(eeritig B&W BABCOCK 8 WILCOX Special Products & Integrated Field Services 3109 Odd Fellows Road Lynchburg, VA 24501 .
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Enclosure CONTROLLED DISTRIBUTION ST-HL-AE-1362 ;
Page 9,of 74 l Ii Copy Number HOUSTON LIGHTING AND POWER COMPANY E. W. Dotson 1 R. L. Beverly 2 HL&P Records Management System 3-4 ,
BABC0CK & WILCOX SPIS Task Leader 5 File / Microfilm 6 w m ry n.
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APPROVED FOR USEfJ AS REVISE ANO 1
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. Enclosure ST-HL-AE-1362 Page ) of 74 Section INTRODUCTION 1
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'3' 3 5 w ' CUSTOMER ~ APPROVALS LIST OF TUBES CONTAINING EXPANSIONS 4 DRAWINGS 5 PREVIOUSLY USED PROCEDURE LISTING 6 PROCEDURE FOR AUGMENTED INSPECTION APPENDIX A
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Enclosure ST-HL-AE-1362 )
Fige fof74 l A. Code Examination - 100% of all tubes in each generator except those which have been plugged during the fabrication stage. Each tube will be examined from tube-end to tube-end in accordance with technical procedure 151-441 using the MIZ-18 data acquisition equipment.
B. Augmented Examination of Expansion Area - An augmented examination will be perfomed on those tubes identified in Section 4 of this manual in
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accordance with technical procedure 151-442 using MIZ-18 data acquisition equipment.
C. Loose Parts - An examination will be performed in accordance with ISI-441 on the Row 1 tubes, outer periphery tubes and tubes adjacent to the T-slot area for .the detection of loose parts
- 2. Requirements The examinations described above shall be performed in accordance with the following requirements:
o ASME Boiler and Pressure Vessel Code Section XI, " Rules for Inservice Inspection of Nuclear Power Plant Components",1980 Edition with addenda through the Winter 1981, Subsections IWA and IWB and Appendix IV.
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Enclosure ST-HL-AE-1362 Page j of 74 4
1.0 INTRODUCTION
This manual describes the methods by which the Special Products and Integrated Field Services' (SPIS) organization of the Babcock & Wilcox Company (B&W) will perfonn the eddy current examinations of the South Texas Project located eight miles west of Wadsworth, Texas for the Houston Lighting and Power Company. This manual serves as the examination plan as required by Nuclear Regulatory Commission. This manual contains the following:
(1) Technical procedures which define the method and techniques used to perfonn the examinations (2) Supplier Engineering Document Transmittal forms indicating acceptance of t the technical procedures (3) List of tubes containing expansions in the preheater region in each generator (4) Drawings of the calibration standards and tube expansion mockup assembly and details (5) List of previously used procedures l 1. Scope of Examination The preservice examination of the tubes in each steam generator (A, B, C &
D) will be perfonned as defined below.
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C3065 1-1
r Enclosure ST-HL-AE-1362 i Page b of 74 o ASME Boiler and Pressure Vessel Code Nuclear Components Code Case N-401,
" Eddy Current Examination - Section XI, Division 1".
o Article 8, Appendix 1 of ASME Boiler and Pressure Vessel Code Section V,
" Nondestructive Examination",1980 Edition with addenda through the Winter 1981.
o Plant bchnical specification
- 3. Tube Numbering:
( Steam generator tubes are numbered as follows: Row 1/ Column 1 tube is the tube directly adjacent to the divider plate and furthermost from the manway as illustrated in technical procedure 151-441.
This manual was prepared for Houston Lighting and Power Company by Babcock
& Wilcox under reference nimber 647-0009.
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r Enclosure ST-HL-AE-1362 Page 7 of 74 2.0 PROCEDURES This section contains the technical procedures pertinent to the preservice examin'ations to be perfomed at HL&P's South Texas Project, Unit 1.
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Enclosure ST-HL-AE-1362 Page 3 of 74 Technical Procedures The appropriate technical procedures compiled in this section are listed below:
NUMER TITLE REVISION 151-441 Technical Procedure for the 0 hitifrequency Eddy Current Examination of RSG Tubing
, in E2 Steam Generators Using the MIZ-18 151-460 Technical Procedure for the 11 Evaluation of Eddy Current Data of Nuclear Grade Steam Generator Tubing 151-462 Technical Procedure for the 3 Evaluation of Eddy Current Data for Debris, Sludge and
. Secondary Side Loose Parts in
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BkBCOCK & WILCOX IEDERVICE INSPECTION PROCEDURE Enclosure
SUBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ST48J A$4D62Re v . O EDDY CURRENT EXAMINATION OF RSG TUBING IN Pa@Q N oxE 7MQ-4 41 -1
. E2 STEAM GENERATORS USING THE MIZ-18 1
- 1. SCOPE: This pr ocedur e shall gover n the multif r equency eddy current examination (ET) of recirculating steam generator (RSG) tubing in accor dance with the requirements up to and including the 1980 Edition of the ASME Boiler and Pressure Vessel Code Section XI with the Addenda through the Winter 1981, the Nuclear Regulatory Commission Reg. Guide 1.83 of July 1975, and ASME Code Case N-401 (ISI 83-28).
The tubing and calibration standar ds are made of Inconel 600 and have a nominal OD dimension of .750 inch and a nominal wall of
.043 inch.
- 2. EXAMINER QUALIFICATION:
2.1 Examiner
The examiner shall be qualified to a minimum of Level II in accor dance with B&W Pr ocedur e 151-24. The Level 11 shall be responsible for the quality of the examination data and shall review the calibrations per formed for acceptance.
2.2 Assistant
The assistant shall be qualified to at least
( Trainee or Level I Limited in accordance with the Babcock &
Wilcox Pr ocedur e 151-24. The assistant shall not independently ' evaluate or accept the results of the examination. The assistant shall perform the examination in accor dance with this procedur e under the guidance of an examiner defined in 2.1. When the examination is performed by a Tr ainee, the Level II or Level III shall observe the per formance of the examination to ensur e that the requirements of this pr ocedur e are met.
2.3 Data Analyst: The data analyst shall be qualified to a minimum of Level IIA in accordance with B&W Procedure 151-24 and shall have received specific tr aining for the evaluation of data ftom nonferromagnetic tubing.
- 3. SURFACE PREPARATION: All tubes to be examined shall be as free of I obstr uctions, dir t, and scale or other extraneous matter that l could obscure tube openings or otherwise interfere with the '
examination as is practical, j l
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-y ADMIN 15,TRATI E APPROVAL LEY. II / CH ICAL REVIEW QA APPROYAL ff.- DW LJ. h .s M__.** G -
_- N/A T_C PREPK ED BY ISSUE DATE REVISION DATE a.
66 M,_ 7-17-85 N /A -
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CABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE Enclosure ST-HL-AE-1362 Page K> of 74
'JBJECT : TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 15I-441 Rev. O EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18
- 4. EQUIPMENT: The Eddy Current Data Acquisition equipment shall be certified, when applicable, in accordance with 151-80.
4.1 Eddy Current Instruments:
. 4.1.1 HP 9836 Computer.
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4.1.2 GPIO Card.
4.1.3 MIZ-18 to HPIB interface.
4.1.4 MIZ-18 Remote Acquisition Unit.
4.1.5 MIZ-18 Acquisition Software.
4.1.6 Associated cables and connectors.
4.1.7 Equivalent equipment can be used if compatible.
( 4.2 Magnetic Tape Recording Equipment:
,;. . 4.2.1 Zetec HCD-752 Data Cartridge Recorder 4.2.2 " Formatted" Scotch brand DC 600 HC data cartridges or equivalent. ,
. 4.3 Zetec MIZ-18 " Digital Data Acquisition Instruction Book",
Revision 1 dated June 21, 1984. Other subsequent revision shall be used as they become available or are applicable.
4.4 Strip Chart Recorder:
4.4.1 No external strip chart recorder shall be used. A l presentation of the horizontal and vertical !
components are displayed and retrievable in hard !
copy printouts on a priority basis. Generation of a ,
strip chart for any portion of a specific examination can be generated at any time in the
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future.
4.4.2 ASME Code Case N-401 (ISI 83-28) was passed by the Main Committee of the ASME Boiler and Pressure
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BABCOCK & WILCOX Enclosure INSERVICE INSPECTION PROCEDURE ST-HL-AE-1362 f Page l[ of 74 t
r UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18
. Vessel Code Committee on November 4,1983 and approved by the ASME Council.
4.5 Graphics Printer: (Optional)
4.6 Probes
4.6.1 An nul a r dif fer ential str aight body ~ probe with a nominal diameter of .620 inch, nominal coil widths of .060 inch, and nominal coil separation of .060 inch.
4.6.2 Other probe designs and diameters may be used for supplemental information. If other designs or diameters are used, the type and. size shall be r ecor'ded on the r espective calibr ation sheet.
4.6.3 Maximum total pr obe extension cable lengths ar e defined in Figur e 3. .
- 4.7 Probe Driver: Zetec Model 2-D, B&W Pinch Wheel, or
, equivalent with or without-take up reel.
4.8 Probe Alignment Device:
4.8.1 For baseline examinations, the probe may be positioned either manually or with a manipulator (and template if applicable).
. 4.8.2 For inser vice examinations, the probe must be
, positioned with a remotely operated manipulator (and template if applicable).
4.9 _ Calibration Standards: The eddy cur r ent calibr ation standards shall contain at least but, not 'be limited to, the following artificial discontinuities:
4.9.1 Flat bottom holes drilled from the outer diameter with the following nominal dimensions.
Quantity Depth Diameter 1 100% .052" 1 80% .078"
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CABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE Enclosure ST-HL-AE-1362
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SUBJECT:
' TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 Quantity Depth Diameter :
I 60% .109" 1 40% .187" 4 at 90' 20% .187" 4.9.2 Circumferential grooves on the identified surface with the following nominal dimensions:
Surface Quantity Depth Width OD 1 at 360' 10% .125" OD 1 at 360' 20% .5" ID 1 at 360' 20% .062"'
4.9.3 The calibration standard shall incorporate a tube support plate sample (TSP). For the ASME standards, the TSP shall be located in a defect-free area of the tube ** that in.terfering signals do not result.
, 4.9.4 Other designs or. additional artifical flaw indications are permissible in the same or different calibration standards provided that adequate separation (one inch minimum) exists between flaws
. and .the "as built" drawings are available for data
! acquisition and data analysis of eddy current data.
4.10 DECIDE Computer: The DECIDE program is a Data Base Management system used for tracking and trending the status of the inspection. It can be run on any IBM-PC compatible computer system. Its use is optional to hand written data forms or the MIZ-18 generated tube lis't.
l 5. AREA 0F INTEREST: The examination shall include the full length of the tube unless specified differently by the owner prior to the l initiation of the inspection.
5.1 The tube support plates (TSP) shall be numbered as shown in Figure 1.
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{ F'UBJECT:-- TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 5.2 The tubes shall be identified b; row and column number in accordance with Figure 2, with row 1 column 1 adjacent to the nozzle and opposite the manway, next to the divider plate.
- 6. INITIAL SETUP AND INTERCONNECTIONS OF EQUIPMENT: (Refer to Figur e 3).
6.1 Connect the GPIO inter face car d on the HP 9836 to the HCD-75Z Data Car tr idge Recor der with a 50-pin GPIO cable.
6.2 Connect the HPIB Inter f ace on the HP 9836 to the HPIB/MIZ-18 interface with a GPIB cable.
6.3 Connect the HPIB/MIZ-18 Inter f ace to the MIZ-18 Remote Unit with the desi'edr lengths of MIZ-18 Remote Cables. The IEEE-488 connector at the lower tight corner of the MIZ-18
. Remete Unit should be used.
( 6.4 An appr opriate MIZ-18 Pr obe Adaptor Cable connected to the i Pr obe connector on the MIZ-18 Remote is used to adapt to standard test probe configurations. If a differential coil ar r angement is to be used, such as a standar d bobbin coil, then the test probe must be connected to the MIZ-18 with either:
A. The MIZ-18 Probe Adaptor (1 Amphenol, 4-Pin); or B. The MIZ-18 Probe Adaptor (2 Amphenol, 4-Pin).
6.4.1 If only differential data is desired, then the 1 Amphenol, 4-pin adaptor (A) can be used without requiring a reference probe. The coil channel selected in the configuration mode for this type of test should be coil 1.
6.4.2 Should absolute data be desired with this type coil arrangement, the 2 Amphenol 4-pin adaptor (B) should be used. In this case, a reference probe MUST be connected to the REFERENCE connector of the 4-pin Amphenol adaptor, and placed in a r efer ence standard. Differential data is then available on coil channel 1 and absolute data is available on coil channel 5.
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c v CABCOCK & WILCOX Enclosure INSERVICE INSPECTION PROCEDURE 1362
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'UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 6.4.3 Check the Interface Select Code Switch on the installed GPIO card, which is the 5 part rocker switch located in the upper lef t quadrant of the board. (See Figure 4). The select code should be
. set to 12 by closing (setting to 1) rocker switches
, 2 and 3 with switches 0,1 and 4 open (set to 0).
6.5 If used, the 2671G Printer should be connec'ted to either the HP 9836 or the HPIB/MIZ-18 Interf ace with a GPIB cable.
7.0 LOADING THE ACQUISITION SOFTWARE:
7.1 Load the MIZ-18 Data Acquisition floppy disk in the right disk drive of the computer. (This disk shall not be " write protected"). System can be booted up by turning the power "on" or "off'8 on".
7.2 Insert a blank data cartridge with the protect arrow pointing away from the " SAFE" position. The system will
( automatically position and load the data recorder which i takes approximately 90 seconds.
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7.3 Enter the month, day, year, hours, minutes and seconds with the appropriate soft keys. When complete press " Set Clock",
s 7.4 Return to test mode by pressing " TEST" key.
7.5 Press " Summary" key to produce the Summary Sheet. The appropriate information shall be entered by pressing " Type Data" and then typing the information. All entries exhibited on the summary shall be completed.
t 7.6 When complete with the Summary sheet press "Done". This will enter the data on the magnetic tape and return the system to the " Test" mode.
7.7 Press the " Configuration" soft-key to display tha' configuration screen. (Refer to Figure 5).
7.7.1 Stt up the configuration as shown in Figure 5 by following the steps below:
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r-BABCOCK & WILCOX Enclosure INSERVICE INSPECTION PROCEDURE ST-HL-AE-1362
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' UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 7.7.2 Select one of the 16 configuration by number that can be changed by pressing the NEXT.f and/or PREV.#
soft-keys. This is necessary because once this configuration has been changed, the new configuration will be written to the system disk.
7.7.3 Select the frequency desired for the #1 frequency time slot in the sequential array by rotating the knob until the desired frequency is displayed.
7.7.4 All frequencies have an allowable tolerance of
+ 10 kHz.
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7.7.5 Using the "DOWN" soft-key, move the white square to the f 2, #3, and #4 f requency time slots and select the desired frequencies.
7.7.6 Using the "DOWN","UP", "LEFT" and "RIGHT" soft-keys, position the white square in the appropriate coil
(- boxes that are to be excited with each frequency.
The " TOGGLE" soft-key will set the coil to be
- excited or not excited. For each frequency time slot, and using the bobbin type probe with a reference probe also connected, the position corresponding to coil 1 represents differential data and the coil 5 position represents absolute data.
7.7.7 If a new name is required, press the "NEW.NAME" soft-key and using the keyboard, type in the new name in the space provided. The "NEW NAME" shall reflect the procedure and revision in use. ,
7.7.8 If desired, the number of data samples per second can be changed. Press the " PTS /SEC" soft-key and enter the numerical value desired using the keyboard. The range is from 10 samples /second to 400 samples /second. For most applications this value will be the def ault value of 400 samples /second.
7.7.9 Once the configuration has been established as desired, press the " CONFIGURE" soft-key. The system
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CABCOCK & WILCOX Enclosure INSERVICE INSPECTION PROCEDURE ST-HL-AE-1362 s _
Page l6 of 74 JBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 will, if any changes have been made, store the configuration on disk and return the system to the test mode.
7.7.10 Other configurations than those described above may be implemented upon prior approval of the B&W Level III. ,
7.8 Select the strip chart channels desired using the "L. STRIP +"
and "R. STRIP +" soft-keys. Operators may select these at their discretion.
7.9 Select the lissajous channel desired using the " CHANNEL +" or
" CHANNEL " soft-keys. Operators may select this at their discretion. ,
7.10 Move to the utility mode by pressing " TEST
- while holding
, the shif t key and with shif t key still depressed, press the
" REVIEW" soft-key.
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7.10.1 Press the " SETUP" soft-key to select the setup
-- , mode.
7.10.1.1 If a printer is being used during data
, acquisition press the "2671G ON" soft-key. s 7.10.1.2 Select the tube and generator labeling system to be used by selecting the appropriate soft ke s. For OTSG's, this numbering shall be {SG" for the. steam generator title and " ROW" and " COL" for the tube titles.
7.10.1.3 Return to the utility mode by pressing the
" UTILITY" soft key.
7.10.2 Press the " DISK UTIL" soft-key and insert a blank disk in the lef t disk drive.
7.10.2.1 Press the "INIT DISK" soft-key in the I shifted mode to initialize a data disk for power failure backup.
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f UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 NOTE: Refer to Section 13 for instructions on recovering from keyboard lockup or power failure.
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7.10.2.2 When initialization is complete-4 2
(approximately 2 minutes) press the "INDEX BKUP" sof t-key and read message on screen p to ensure " Backup Enabled".
7.10.2.3 If the data cartridge was successfully ended by using the "END TAPE" sof t key, the back up disk may be re-used on the next data cartridge by pressing the "CLR 'INDX" soft key in the shifted mode. This will erase the backup tube list for the cartridge that has just been ended.
7.10.2.4 Return to the utility mode by pressing the
" UTILITY" soft key.
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7.11 Return to the test mode by pressing the " UTILITY" sof t key
. while holding the shif t key.
4 8.0 ACQUIRING DATA 8.1 Tu rn the MIZ-18 tester on by pressing the "MIZ-18. ON" soft-key.
8.2 With a test probe in a section of calibration standard known
, to be free of defects, press the " CONTINUE" key on the keyboard to null the data being displayed and notice the long strip charts scrolling from top to bottom of the screen. j 8.3 While viewing channel #1 withdraw the test probe through the calibration standard until all artificial flaws are .
, displayed. l 1
8.4 Press the MIZ-18 0FF soft-key to turn the tester off.
8.5 With the knob, move the cursor down the long strip chart.
- The lissajous display will change as the knob is turned and
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BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE L E 1362 JBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2-STEAM GENERATORS USING THE MIZ-18 the expanded strip charts will show that section of data being -displayed in the lissajous section of the display screen.
NOTE: No data will' be displayed in the long strip charts on the left portion of the display.
8.6 Press the " SPAN / ROT" softkey to enter the span / rotation mode.
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8.6.'1 Press,the " REFRESH" soft key to display data in the long strip chart widows .
8.6.2 Position the cursor to that section of data that shows the 100% through wall flaw in the lissajous d i s pl ay .
8.6.3 Press the " SET ROT" soft key to enter the rotation setting mode.
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8.6.3.1 With the knob, rotate the signal from the
. 100% through wall hole such that the signal is parallel to the 40 degree line drawn on the screen and with the initial excursion being down and to the right. The expanded strip charts should show the vertical (left) and horizontal (right) channels having the earliest in time data (i.e., the lower part of the display) initially moving apart.
8.6.3.2 All ch'annels can be set to the desired display rotation by pressing either the
" CHANNEL " or " CHANNEL +" soft keys to display the same data segment for each channel.
8.6.3.3 For the dif ferential channels 1,3,and 5 set the rotation (phase) such that the response from the 100% through wall hole is 40" (+ 5 -
degrees) f rom the horizontal and the signals go down first. See Figure 6.
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@ABCOCK & WILCOX Enclosure INSERVICE INSPECTION PROCEDURE ST-HL-AE-1362
__ Paga 14 of _74 7UBJECT:
I TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 15I-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 8.6.3.4 For the 10 kHz differential, channel 7 . set the phase so that the response to the TSP sample goes horizontal and-to the left first as the probe is pulled. See Figure 8A.
8.6.3.5 Fo r the ab solute channel s ,2, 4 and 6, set the " Rotation" so that the response from the 100% through wall hole is approximately 220' degrees (+ 5 degrees) as shown in Figure 7 when pulling the probe.
8.6.3.6 For the 10 kHz absolute, channel 8, set the phase so that the response to the TSP goes
, down and is 90' peak to peak as shown in Figure 8B.
8.6.4 Press the " SET SPAN" soft key to enter the signal span setting mode.
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8.6.4.1 With the knob adjust the size of the signal
, being displayed to the desired level.
NOTE: It may be necessary to return to the SPAN / ROT mode to select another signal for setting SPANS such as a tube support plate signal. The combination of these soft key modes should be used to set the signal display desired for each channel.
8.6,.4.2 All channels can be set to the desired span setting by pressing'either the " CHANNEL "
or " CHANNEL +" sof t-keys.
8.6.4.3 Set the " SPAN" for the differential channels 1, 3 and 5 so that the signal response from the 100% through wall hole is at approximately 4 divisions on the display. See Figure 6.
8.6.4.4 Set the span for the 10 kHz differential, channel 7, so that the response to the TSP Page 11 of 28
Enclosure CABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Page dD of 74
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UBJECT: 151-441 TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY Rev. O EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 is 6 divisions vertically as shown in Figure 8A.
8.6.4.5 Adjust the " SPAN" on channels 2,4,and 6 to produce at least a two division signal, f rom the 100% through wall hole. See Figure 7. ,
8.6.4.6 Set the span for the 10 kHz absolute, channel 8, such that the response to the TSP is between 3 and 4 divisions vertically, as shown in Figure 8B.
8.6.4.7 Pressing the "TO. DISK" soft-key stores ALL SPAN and ROTATION values as part of this configuration on the acquisition software disk. This can, be used to recover from an inadvertent error should it be necessary.
(; Once stored on disk, the SPAN and ROTATION
' values will automatically be set when this configuration is used to establish the
, acquisition parameters.
8.7 Press " Test" to return to the test mode.
8.8 Press the " Summary" soft-key.
8.9 Press " Update" to update the summary with frequency, Span, rotation and coil data.
8.10, P'ress " Type Data" followed by "Done". This will rewrite the updated summary to the tape.
8.11 Any message can be typed by going to the " message" function.
Press " Type Data" to enter a message and "Done" to store message on' tape. (i.e.: Start of Standard test" is a sample message).
- 9. SYSTEM RECORDING: Upon completion of the span and rotation settings record the calibration on the data cartridge as follows:
9.1 Press "MIZ-18 On".
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- . v Enclosuro ST-HL-AE-1362 BABCOCK & WILCOX Page ;q of 74 INSERVICE INSPECTION PROCEDURE 4 - _
UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 9.2 Enter the stean, generator identification stipulated by the customer. Enter Row / Column as 999 8 999 to identify the data as calibration data.
9.3 Press the "Run" key on keyboard and wait for screen command of " Tape On - Writing Verified".
9.4 Withdraw the test probe through the calibra' tion standard and broached support plate sample at a speed not to exceed 14 inches /sec. and record the responses on the magnetic tape.
9.5 Press " Pause" on the keyboard to stop tape recorder. Note recorder will stop a few seconds later and the MIZ-18 remai.ns on.
9.6 Repeat steps'9.3 through 9.5 to repeat the calibration recording.
9.7 Calibration shall include the complete ET examination
(' system. Any change of test probe, extension cables, ET instrument, recording instruments, or any other parts of the
. examination system shall be cause for recalibration.
9.8 The system calibration shall be verified and the results of the test standard recorded at: ,
9.8.1 The beginning and end of each data cartridge and at interva'.s not to exceed four hours.
9.8.2 Calibration shall be performed at any time malfunctioning is suspected and,af ter any malfunctions have been corrected.
9.8.3 Prior to changing any equipment (if possible).
9.8.4 The conclusion of an inspection as a final calibration.
9.9 If the equipment is found to be out of calibration as defined in this procedure, it shall be recalibrated. The data analyst shall determine which tubes, if any, shall be reinspected.
l .
Page 13_of 28
}
e <
[ Enclosuro ,
ST-HL-AE-1362 l BABCOCK & WILCOX Page j:m of 74 INSERVICE INSPECTION PROCEDURE
('
JBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 NOTE: Using the MIZ-18 system, the only real indication that the system is out of calibration is an error message identifying the channel affected, the horizontal or vertical j component and the range of the signal in terms of full l scale. An example of this is "Ch 4Y - 891 full scale". ,
This message occurs when the balance (CONT) key is pressed. '
Additionally, the centerline between the long strip charts will become very broad in the region where the system is out of calibration.
9.10 In the event that calibrations cannot be performed because of building evacuations, etc., a calibration shall be made upon reentry and will suf fice as the fourth hour calibration.
9.11 The calibrat' ion performed above does not actually change the phase and gain of the probe and . instrument. The setup is to assist the operator in determining if all systems are
( working properly during the data acquisition phase. The data analyst shall also review the calibration data to ascertain if proper voltages are obtained.
- 10. SCANNING REQUIREMENTS:
10.1 The direction of scanning and recording shall be during 1 retraction of the probe. The inlet or outlet from which the probe was inserted shall be identified on the applicable data sheet.
10.2 The speed of scanning during data recording shall not exceed 14 inches /sec. unless prio.r approval from a B&W ET Level III is granted.
- 11. PROBE SPEED VERIFICATION: The reverse (retraction) speed of the probe driver shall be verified whenever the eddy current system is <
calibrated.
11.1 Insert the eddy current probe into the straight length portion of a steam generator tube, t
i Page 14 of 28
Enclosure ST-HL-AE-1362 CABCOCK & WILCOX Page stj of 74 INSERVICE INSPECTION PROCEDURE l
.i' l UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 15I-441 Rev. 0 1 EDDY CURRENT EXAMINATION OF RSG TUBING IN l E2 STEAM GENERATORS USING THE MIZ-18
==_
11.2 Retract the eddy current probe at the normal inspection speed through the length of tube while recording the signal on the MIZ-18 display.
11.3 The horizontal hash marks between the L. Strip and R. Strip charts are 1 second intervals. Use these to determine probe velocity between two points of known dimension, e.g. support plate to support plate. *
- 12. POSITION VERIFICATION:
12.1 The ability of the probe positioner to locate specific tubes shall be verified visually and recorded upon installation and before relocating or removing the fixture.
12.2 If tube identity verification reveals that an error has occurred in the recording of probe location and resolution of actual tubes run is not possible, then all tubes examined g since the previous verification of location shall be reexamined.
12.3 Corrections to any tube identity shall be made using the message routine following the completion of the tube run.
- 13. RECOVERY FROM POWER FAILURE OR KEYBOARD LOCKUP:
NOTE: If the Disk backup was properly enabled, it is the prefered routine for recovery. If it was not, follow the steps outlined in Section 13.2 for recovery.
13.1 Using the In,dex Backup from disk:
13.1.1 Cycle the "On-Off" switch with the data acquisition software disk in the right disk drive to re-boot the system.
13.1.2 Re-set the clock, month, day and year using the appropriate soft-keys.
13.1.3 Return to the test mode by pressing the ' TEST" soft-key.
Page 15 of 28
v Enclosure ST-HL-AE-1362 BABCOCK & WILCOX Page g4 of 74 INSERVICE INSPECTION PROCEDURE l JBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 13.1.4 Press the " TEST" soft-key with the shift key to enter the review mode then press " REVIEW" soft-key with the shif t key to enter the utility mode.
13.1.5 Press the " DISK UTIL" soft-key.
13.1.6 Press the " DISK INDX" soft-key to obtain the index (TLIST) from the disk and store to'the computer memory.
13.1.7 Press the "INDX BKUP" soft-key to enable the backup routine. This is necessary af ter re-booting the system as the disabled mode is the def ault condition.
~
13.1.8 Pres's the " UTILITY" sof t-key once by itsel f then again while pressing the shif t key to return to the test mode.
13.1.9 Press the " TEST" soft-key while pressing the sh'ift key to enter the review mode.
13.1.10 Press the "
SUMMARY
" soft key and verify the summary contains the correct information.
13.1.11 Press the "TLIST" soft-key to obtain the list of tube entries that have been recorded to the tape.
13.1.12 Using the knob scroll the list of tubes to place the next to last tube entry adjacent to the find tube
, arrow.
13.1.13 Press the " FIND TUBE" soft-key and the recorder will move to the selected tube and display the eddy current data on the screen.
NOTE: Before displaying the data for the selected tube, the message "CONFIG CHANGE-RUN TO CONTINUE" may be displayed. Simply press the RUN key to change the configuration and display the tube.
Page 16 of 28
r .
Enclosure 8
BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE E* '
-( - - -
7BJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 13.1.14 Press the " REVIEW" sof t-key once by itself and then again while holding the shif t key to return to the utility mode.
13.1.15 Press the " UTILITY" soft-key while holding the shift key to return to the test mode.
13.1.16 Begin testing again by first verifying the calibration setup and then re-running the last tube
, inspected before the power failure'or keyboard lockup.
13.2 If the backup disk utility was not enabled, recovery can be accomplished by creating a new index using the " TAPE UTIL".
13.2.1 Foll'ow steps 13.1.3 and 13.1.4 to enter the utility mode after re-booting the system and setting the clock.
~
13.2.2 Press the " TAPE UTIL" soft-key.
13.2.3 Press the "NEW INDX" soft-key to start a search of the data cartridge for the tube numbers that are recorded on the cartridge. This will create a new TLIST in the memory of the computer and to the disk, if now enabled.
13.2.4 When the search is complete the message "DONE" will appear on the display. Follow steps 13.1.8 through 13.1.16 to continue testing.
- 14. RECORDING CRITERIA:
14.1 All data from the tube examinations shall be recorded on digital data cartridges.
14.2 In the test mode with the MII-18 on, insert the test probe into the tube to be tested.
14.3. Identify the tube number using the appropriate soft-keys with the MIZ-18 on.
(
l Page 17 of 28
Enclosuro BABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Pego2 L of 74 TUBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Re . 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 14.4 Press the "RUN" key to initiate the data recording and withdraw the probe while recording the data. When the probe has exited the tube, wait two seconds, then press the
" PAUSE" key to stop data recording, otherwise some of the
. data will not get written onto the cassette tape.
NOTE: It is not necessary to turn the MIZ-18 off between tube runs.
14.5 Repeat steps 14.2 through 14.4 until all desired tubes are tested or the data cartridge becomes full.
14.6 Each data cartridge shall contain the following information as a minimum in the summary section:
14.6.1 Name'of Owner 14.6.2 Plant site
( 14.6.3 Heat exchanger identification 14.6.4 Date of examination 14.6.5 Tape number 14.6.6 Examination direction (f rom inlet or outlet) 14.6.7 Data base or identification number of the calibration standard.
14.6.8 Operator's personal identification number (PIN) and certification level.
14.6.9 Nominal operating frequencies / test type (abs. or diff.).
14.6.10 Cable type and characterisitics, e.g. coax.
14.6.11 Lengths of probe and extension cables.
(
Page 18 of 28
U Enclosure ST-HL-AE-1362 CABCOCK & WILCOX Page y of 74 INSERVICE INSPECTION PROCEDURE
'JBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 14.6.12 Size and type of probe (s).
14.6.13 Probe manufacturer's name and probe description or part number.
14.6.14 Data base or serial number of the data acquisition equipment. (i.e.: computer, interface unit, MIZ-18 remote unit, data recorder). '
14.7 There is only one summary written to any data cartridge.
Any changes affecting information within a summary already written to the data cartridge shall be made using the message routine. An alternate method is to end the current data cartridge and install a new one with the new summary information.,
14.8 When a data cartridge is full, press the " TAPE RCDR" soft-key to enter this mode.
( I4.9 Press the "END TAPE" sof t-key in the shif ted mode to write i
an "end of data" message to the data cartridge and to updata
. the tape header with the list of tubes and messages that have been recorded to this data cartridge.
14.10 The tape will atuomatically unload, which takes about 90 seconds, and the solenoid will sound a release allowing the tape to be removed.
14.11 Remove the data cartridge and turn the write protect . device to the " SAFE" position to prevent accidental overwrite of the data.
14.12 Calibration sheets and data sheets shall be completed for all tubes examined if the MIZ-12 system is used. DECIDE printouts may be used insteadoof data sheets. Al l calibration sheets, data sheets, and DECIDE printouts where applicable shall be reviewed, signed, and dated by a Level II.
- 15. DATA EVALUATION: Data shall be evaluated in accordance with 15I-460 for A5ME calibrations and 151-462 for sludge or debris as required.
I Page 19 of 28
Enclosure CABCOCK & WILCOX ST-HL-AE-1362 I INSERVICE INSPECTION PROCEDURE Page dl of 74 p __
8 UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18
- 16. REPORTING CRITERIA: All reportable indications shall be reported to the owner on at least a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> basis. Only reportable indications shall be listed in the final report. Customer reporting requirements shall supercede this procedure.
16.1 All reportable indications equal to or greater than 20%
through wall shall be reported. ,
16.2 -All detectable tube dings / dents known to obstruct probe passage shall be reported.
16.3 Any additional condition (s) that the data analyst deems necessary to report shall be reported.
(
(
' Page 20 of 28 _
Enclosure ST-HL-AE-1362 BABCOCK & WILCOX Page p9 of 74 INSERVICE INSPECTION PROCEDURE l -.
UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MI2-18 ANTI- w0k ATION hA%m ,
Sa oss **C,wML GOO
CHAOM6 AATI B
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,1
.15
[inf 7 rm r, DSE SUPPOSTJ N '
- / ' '
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[
( STAY ROO ~ ~~ ~~ ~
l STEAM GENERATM Ty
- gjsj
) ji d
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^$ t d{ l',i
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1[ l k' 'llt r
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I l, e *MPondoMEA/T A ATE c en % ----" gs f'
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- M.50 ' # --- '
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A_ t= - 425 717 s AActs TusE MfL T - - . fog 2j% ll - 18 00 I I m.
INLE T - '-- -- Ou s E T I
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- Ph IMAR Y A4AN WA Y
, prs Aee RY L W A N T-- "
NDEZsE Page 21 of 28 FIGURE 1 - TUBE SUPPORT PLATE LOCATION AND NUMBERING SEQUENCE FOR E2 RSG's.
J
Enclosure ST-ilL-AE-1362 BABCOCK fi WILCOX Page36 of 74 INSERVICE INSPECTION PROCEDURE
! UBJECT: 1 TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. O I EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 l
l N0ZZLE WANWAY I 5 10 15 20 25,,30 35 40 45 50 55 50 55 70 75 80 85 S0 35 100 105 110 Ils 120 I' __ _ _
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ROW 1 l
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s 5 3 ! , ,
( le B B J !_ E-E i:
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aa Mi h
r
/[ 35 dN5bbE hp NN:=i4 f P-."
) ,
. i l
l 4
Page 22'of 28 FIGURE 2 - TYPICAL MODEL E2 TUBE SHEET MAP
Enclosure ST-HL-AE-1362 EABCOCK & WILCOX Pags 3[ of 74 INSERVICE INSPECTION PROCEDURE
/
'UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY. 15I-441 Rev. 0 1 EDDY CURRENT EXAMINATION OF RSG TUBING IN i E2 STEAM GENERATORS USING THE MIZ-18 I l
l 1
NI:-It 1%7ERC0%%1CT10% SCHDIATIC I 1 H1:-18 PROBE HP 26'IC l (Ofi!ONAL) I p7en i (FRONT) L_____j PROBE 1
REFERENCE O
FRO 'T
- (f0P
[ j Hrlt TO O -
O nl: ls (FRO:sT)
? o t '
( HCD-75:
(FRON7) o MI 18 RDCTE CABLE O
HP It*1C c _(OPTIONAL)____,
4Cr!t CABLE g g {
I "L~ ~. "' ~ J l
s bl HP 98% !
Cable Lenaths (REAR) I I )
, , A. 1 !!0 Test g B. I 1000 Teet T I Q C. All other cables less than 10 feet MCD-75: I l (
, (RIAR) L .,
I MPIB TO MI:-Is
~
GPIO CABLE (REAR)
Page 23 of 28 FIGURE 3 - MIZ-18 EQUIPMENT INTERCONNECTIONS
Enclosuro BABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Page K of 74
( -
UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 1 1 0 Interface Select Switch l
o o 4 o t ,
! 2 J... . !
5: i8
~
( 25 [f i; "::;; i d.
" {
gII [
}I
[ !!! ~
9-.
.I.b N , T_s .
g , , k;;............g. ..j;;g'g LX $ [,ga g 11
- r- v cR '
t . - .
.15a1181112 -
~~
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t Page 24 of 28 FIGURE 4 - DIAGRAM SHOWING POSITION OF INTERFACE SELECT SWITCHES ON GP10 CARD AND THEIR PROPER CONFIGURATION (DARK AREA INDICATES THE ROCKER SWITCH IS IN THE DOWN POSITION)
. v Enclorura ST-HL-AE-1362 BABCOCK & WILCOX Page.33 of 74 INSERVICE INSPECTION PROCEDURE UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. O EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 MII-IB CDWIGLKSTIDH HUPOEP: 9 SAPPLES per SEC 446 NAPE-3 !$1-443 R9 FREQLENCY SEQLDCE PROBE DOM 1 SELECT
, g CDIL CDIL CDIL CDIL CDIL CDIL CDIL CDIL I 2 3 4 5 6 7 8 B
z ase ka: M M 3 18e htt: M M 4 se ka:
1 Ml !l Ml i
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Page 25 of 28 FIGURE 5 - CONFIGURATION SETUP (NAME SHALL REFLECT PROCEDURE AND REVISION IN USE).
m.r .
Enclorura ST-HL-AE-1362 CABCOCK & WILCOX Page 3 of 74 INSERVICE INSPECTION PROCEDURE 1 __.
JBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. O EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18
. o. . m2 .' . m a wai , o.= o so - i 30 ..os . Ca e n Orsrun N ses oses - :
FIILO est kHz l
\'. lb noiAt:Cni - ser Mo LE.EL.e.1TJ8 oa - In F1tEG - em tetr
$P5e* 94 PE_.I N'A. ROTATIOh = 332 MG ElWI 31.L_PRI 6
ote e - av FMO 488 ketr SPles M A01FTICM - SE MG
\ 172IM GQeflG.51AT10M f e rE - 351-941 AB
. ., o .
} _ _ 17: 33: 30 AM j _
N _
Jseuury a 3964
_5 _ cc L.
a e s 6 7 e
_r_w gre 7.
( w. .e .
iI e O. o9 8'4A2 . CM i w&T .i D.e.h H0 - 8 ID e ktad . Ch .
- I 8 DM
,-YcQ _
Fw C.%
~ b keer H
I h asalaT!Co - SSF MG I i N '.
(((T 17515 06ET j N \,e
- o+em - an
., FTG ett keer g IMee fee
- g ,
ADTATICoe - 332 MG t g
- Ji*'L112.LP_Gtis.El ossa - av FMG est tear SHee 34 ROYATICDs - 332 N G m
m m.s95: m.ei n.
. . o isi- .- .
h 32:17:24 fue p'% Jieu ev 8 19De F -
g ,; M i'*7 .
e 3:Ni .
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Page 26 of 28 FIGURE 6 - TYPICAL SPAN AND ROTATION SETTINGS FOR DIFFERENTIAL CHANNELS 1,3, AND 5
Enclosure ST-HL-AE-1362 CABCOCK & WILCOX Page 33 of 74 INSERVICE INSPECTION PROCEDURE i UBJECT: TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY 151-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18
.o.. e.l . o. . wn .. o t.c-. m e== . cm e l
o.n nin.e FRE 9 - 299 tetr h010?!OM - M WG W._
. o.m.11?-e M._1 NO - fem tetr
(.s . 9 484 .%
y EDIATICDt - M NG
=19e._mie.m Osa - y FWG ter betr sPuse %
B0f 073(D8 - M KG i
H.UE 9 - ISI-eel fleIII!'_QMigsgIIe
. . o.De- 0
- _ 52:15:08 8W JIDisFY l 1Mhg
~
--fjge s'c 3 6 '!e N &
'O
. o . watz . _ o. . war .1 os n un - . 1o e == e ca e I
j _pi n
, o.n -- .n FWED - 245 k>tr srene - %
toffeTIf.se - M IEG
.. W o- SW2.M.I
( rate - 2pm keer s WED* - %
\ e010TI(De - M CEO 2
'JP.s'T o ** -stall.w .IEI rwe - fue e e spies - a poinvice. - M mG 7 cm.ani:ueIIe esse - is -+4: se
..o.
_ _ 12:16:0D 859
> ,-'w,Y, ,',. C a 7 y, 7,
4!3 I'd i Page 27 of 28 FIGURE 7 - TYPICAL SPAN AND ROTATION SETTINGS FOR ABSLUTE CHANNELS 2, 4 AND 6
Enclotura CABCOCK & WILCOX M-E- AE- 13 62 INSERVICE INSPECTION PROCEDURE Page 3b of 74 UBJECT:
TECHNICAL PROCEDURE FOR THE MULTIFREQUENCY ISI-441 Rev. 0 EDDY CURRENT EXAMINATION OF RSG TUBING IN E2 STEAM GENERATORS USING THE MIZ-18 t 1. o.
l e.: .t . .> 7 et . os.m oo - 7 to e soe . Cu n_ciuta
.l y
l y' " ma m.,
osen -
7==i se .
l l
2076eTIGe - 54 EC un 3m ,os,T o . - n.
, me i...
) SHee 44
, i l ROTAT3me - 50 DEG
- i d =_m_sma_m2 oma - 7v i me i..-
Spe. 44 is0TATitse - 56 EG l
i snIe_
test - m l e.Iasne 151-*
e of one- 8 I&tS7sS7 fee i January 89be I g s! i , 3 6U s n
_i
-f:L'
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FIGURE BA - CORRECT RESPONSE TO TSP AT 10 KHZ DIFFERENTIAL (CHANNEL 7)
. os 6 eeN'.i. De S 9021 oseeEL eats - 8 ID eEnd e Ca .
l Lff DIPLFY ose.e - e 3
SCTAflee - 175 EG grT TTE1P ove_7 osee - e.
FIE0 16 tetr SHee ISb IOTAT3Ds = 475 MG 3
5 N m.w n u. e.
Emes 8"~
0 NOTATIWe - !?5 NG
~ ~
miw.w.1wte11e esea - 363- : as e .f one- e R&su6:59 de
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2n + ,
' 1 ; &;
FIGURE 8B - CORRECT RESPONSE TO TSP AT 10 KHZ ABSOLUTE (CHANNEL 8)
\
Page 28 of 28
DRD@@5M & BZLC@B INSERVICE INSPECTION PROCEDURE M 985*._._
u - ru.- m. - u u
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF PagP r oc68ul% No.
i EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM ISI-460, Rev. 11 GENERATOR TUBING PQ No.: PQ-460-1
(
- l. SCOPE: This procedure shall gover n the evaluation and r epor ting of eddy current data from nonferromagnetic steam generator tubing.
- 2. DATA ANALYST QUALIFICATIONS: The Data Analyst shall be qualified to a minimum of Level IIA in accordance with Babcock & Wilcox Company Administr ative Pr ocedur e ISI-24. The analyst shall have also received specific training for the evaluation of data f r om nonferromagnetic tubing. The analyst shall evaluate the data and r epor t the r esults of the examination.
- 3. EQUIPMENT: The_following equipment is considered acceptable but not required for use in the evaluation of the data. This typically consists of multif r equency gener ator s, stor age scopes, strip char t r ecor der s," magnetic tape r ecor der s, the Computer ized Eddy Cur r ent Analysis System (CECA), and the Zetec DDA-4 (Digital Data Analyzer). The DECIDE system (Dir ect Eddy Cur rent Inspection Data Entry) may be utilized to assist in the recor d keeping of the r esul ts. All equipment used shall be certified, when applicable, in accordance with 151-80.
- 4. AREA 0F INTEREST: The evaluation of data shall include all inf ormation recor ded on magnetic tapes and strip charts per the
-~~( requirements of the operating procedure in use or as specified by the customer.
- 5. EVALUATION OF DATA: The 400 kHz data shall normally be consider ed the primary scanning frequency in conjunction with the TSP suppr esion mix displayed by one of the ver tical strip char ts.
5.1 The evaluation shall be conducted by viewing the data fr om the magnetic tape recording for each tube to locate any abnormal signal indications and review of the data for indications identified during the acquisition of the data. Strip charts shall be used to provide supplemental information as needed.
i
%DMlkl5TRATIVE APPROVAL TECHNICA ,PR VAL (LEV. Ill) QA APPROVAL D M u. W A r. G ap
( ISSUED / EVISED BY 155UE DATE REVISION DATE PAGE NO.
I S> C- ,= -- 10-31-80 07-18-85 1 0F 14
Enclosura BABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Page b$ of 74
_( __
IBJECT: -TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 15I-460, Rev. 11 GENERATOR TUBING I ____
5.2- Once the indication has been detected, all respective fr equencies and. mixes. shall be displayed on the-CRT for 11 further evaluation.
- 5.3 Analysis: All indications analyzed will be classified in
{ accor dance with Table I and r ecor ded.
5.3.1 When the signal of interest is not inter fer ed with by the edge effects of tube support, tube sheet, or
.. anti-vibration bar signals, then the indication, if tube wall loss, can be classified with the data available.
5.3.2 When the signal of interest is inteifered with, then one of the following techniques may be used to further define the tube wall loss.
5.3.2.1 Computer Analysis
(. 5.3.2.2- Multifrequency A 5.3.2.3 Mul tipar ameter 5.3.2.4 Special Probes 5.3.2.5 Magnetic Satur ation 5.3.2.6 Other
- 6. SIGNAL FORMATION: Determine the direction in which the signal Il being evaluated for ms.
6.1 The indication shall normally r epiesent tube wall degr adation (metal loss) if the evaluated signal begins down (negative) first.
6.2 The indication s' hall normally repr esent no degr adation (no metal loss) of tube wall if the evaluated signal begins up (positive) first.
(
Page 2 of 14 i
- l
T .
Enclosure ST-HL-AE-1362 BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE PageU[of74
_t _ - - __
UBJECT: TECHNICAL PROCEDURE F0F. THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING 6.3 Paragraphs 6.1 and 6.2 are predicated on the f act that the calibration technique requires defect signals to go down first.
6.4 Any indication representing tube wall loss shall be evaluated with other frequencies, whenever practical, to make sure that the indication responds consistently as a defect.
- 7. SIGNAL TO NOISE RATIO: For all signal indications which represent a percent. wall penetration, the signal to noise ratio (S/N) shall be determined. The method used to determine the signal to noise ratio is illustrated in Figure 1.
7 .1 For indications with a S/N < 1.5, only the location and type of defect (if possible) shat 1 be recorded with an accompanying note of "S/N" in the "1 TWD" col umn.
7.2 For indications with a S/N > 1.5, the location, type, and
{ percent through wall dimension s, hall be recorded.
- 8. PHASE ANGLE MEASUREMENT:
8.1 Determination of the phase angle of all indications representing tube wall. degradation shall be made providing the S/N is greater than 1.5. The phase angle shall be determined in accordance with Figure 2.
8.2 When determining the phase angle of an indication, proper selection of the points used to determine the angle are very important (See Figure 3).
8.2.1 When ind'ications cross over and have a significant straight line between peak to peak points (similar to the calibration signals), the angle will be determined
- f. by the straight line portion.
Page 3 of 14
. - -. - _ j
Enclosure BABCOCK & WILCOX ST-HL AE-1362 INSERVICE INSPECTION PROCEDURE Pagebof74
r'UBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No. i EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM ISI-460, Rev. 11 i GENERATOR TUBING 8.2.2 When indications deviate from calibration hole signal responses or do not cross over, the phase angle shall generally be determined from peak to peak amplitude points.
8.3 The phase angle measurement shall be compared to the relevant calibration curve to determine the percent through wall and originating surface.
8.4 An oscillograph of all indications representing tube wall loss of 20% or greater shall be made.
8.5 All information about the tube and defect will accomodate the oscillograph. This includes tube number, defect location, steam generator, date of examination, the phase angle assigned in degrees, the percent through wall, and the system response number from which the percent through wall was 11 derived. The data an'alyst shall sign and date the oscillograph page.
- 9. CALIBRATION SYSTEM RESPONSE:
9.1 Establish the applicable OD or ID system response calibration curves for the technique used for any indication representing tube wall degradation.
9.2 The system response should be constructed from the calibration performed immediately prior to the indication being evaluated. However, the calibration performed 11 immediately af ter the indication may be used if nothing in the system was changed before the calibration.
9.3 The system responses used shall be numbered in sequence and the information recorded on an appropriate calibration sheet.
9.4 The "as built
- calibration drawings shall be used to determine the actual percent through wall of the artificial discontinuities, and these percentages shall be used to construct the system response curve.
t Page 4 of 14-
r a -
Enclosure CABCOCK f. WILCOX y INSERVICE INSPECTION PROCEDURE JBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING The phase _ angle of the artificial discontinuities in the calibration standard will be determined using a protractor if the phase angle of the discontinuities in the steam generator tubing is going to be determined using a protractor.
The phase angle of the artificial discontinuities in the calibration standard will be determined using the DDA-4 if the phase angle of the discontinuities in the steam gen.erator tubing is going to be determined using the DDA-4.
In either case, the calibration system response curve will be plotted manually on the appropriate calibration system response form. If any of these responses are distorted or have been interfered with in any way, they may be omitted or cthers used with the approval of a B8W Level III ET.
.y' 10. AXIAL LOCATION: Indications representing wall loss with a ,
A- S/N > 1.5 and 20% or greater through wall dimension shall have
. the axial location determined by referring to known structures, i .e., tube supports, tube sheets, or anti-vibration bars.
10.1 Determine from drawings or customer information the actual distances between support members.
10.2 To determine the axial location of an indication from a known reference point (tube sheets, tube supports or anti-vibration bars), a strip chart recording may be generated at a speed of at least 25 mm/sec which includes the indication and the bounding support members with the 11
. manual method, or if the DDA-4 is used during the analysis, the axial location can be determined by following the preprogrammed routine of the DDA-4. The routine shall be set up on the tube in which the indication is located.
10.3 Either the vertical or horizontal channel may be used to determine axial distance to the nearest inch. Selection of the channel giving the maximum amplitudes shall be used.
10.4 The direction of probe scanning must be factored into the determination of indication location with respect to the
. Page 5 of 14 4
L
r Enclosure BABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Page g of 74
'UBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING support member. The direction of probe scanning will change the calculations of axial location.
10.5 Reference Figures 4 and 5 for examples of calculating defect locations with the manual method for given probe scan directions in a once through steam generator (OTSG) or a recirculating steam generator (RSG).
- 11. REEXAMINATIONS: All tubes to be rerun as a result of the data analysis shall be identified by the Data Analyst. When this request is made, the Analyst shall make the notation "TBR" (to be rerun) in the remarks column.
11.1 Any information listed for a _ tube with "TBR" is preliminary and the final analysis will appear later in the data when the tube is rerun.
11.2 All tubes without the "TBR" designation shall be considered as final calls. -
I'-
- 12. CONFIRMATION: Confirmation examinations of tubes scheduled to be plugged or pulled are usually made after the completion of the entire eddy current examination.' The primary purpose of the confirmation examinations is to verify the tube identity of any tube to be removed from service (plugging or pulling). Another purpose that the confirmation run can fulfill is to help determine if defects are actively progressing in depth during the inspection outage. The confirmation process may be eliminated or additional tubes may be selected for confirmation per customer request.
12.1 When the purpose of the confirmation examination is to verify tube identity, this can be completed by comparing the original oscillographs to the signals observed on the eddy current CRT scope. A separate magnetic tape can be ,
generated during the confirmation examinations if requested '
by the customer.
12.1.1 For all tubes verified, the Level II shall write
" confirmed" in the remarks column and no other analysis is required in this case.
(
( Page 6 of 14 )
Enclosure BABCOCK & WILCOX p, g INSERVICE INSPECTION PROCEDURE 4 - --
UBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING 12.1.2 In the event that.a particular indication does not
, confirm the tube location, . resolution is needed.
12.1.3 If the tube is not verified, the correct tube number shall be noted and all previous data shall be corrected accordingly.
12.2 When the purpose of the confirmation is al.so to determine if the flaws have grown during the outage, an analysis of the confirmation eddy current data is necessary. For the purpose of determining flaw growth, the following procedure assumes that a + 10% error band exists in the eddy current technique and tEis must be factored into the analysis'when determining if flaws are actively growing. The following analysis technique shall be implemented on the confirmation run to determine if additional tube degradation has occurred.
12.2.1 The preconfirmation final call'(percent through
(' wall) shall be referred to as (X). The confirmation initial analysis shall be referred to as (Y). The final confirmation analysis shall be referred to es (Z).
12.2.2 When (Y) has a value less than (X) or up to (X +
10%), the value to be reported as the final confirmation (Z) will be the same as (X).
12.2.3 When (Y) is greater than (X + 10%), (2) shall be equal to (Y - 10%). For example, if (X) was 35%
and (Y) was 50%, (Z) would be 40% and could be construed to mean that the defect grew from 35% to 40%.
- 13. MAINTENANCE OF DATA: The Data Analyst shall be responsible for magnetic tapes, strip charts, oscillographs and other records once in his possession.
13.1 The Analyst shall notify the Group Leader of reexaminations required on a daily basis.
i
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i Page 7 of 14 L .. _ - - -_ _ ___ _ _ _ _-,____ _ . ___. _ _ _ _ -.__ _ _ _ ____
r o q
CABCOCK & WILCOX L 1362 INSERVICE INSPECTION PROCEDURE P88sYfof74 t
L 8 JECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING 13.2 Upon completion of the examination, or more frequently if required, the Analyst shall provide a data record of all examined and evaluated tubes to the Group Leader for distribution.
13.3 When the data is to be submitted by telecopy, an appropriate transmittal form shall be used to log data transmitted. This sheet shall also be telecopied to the receiving party with the appropriate data.
13.4 The data analyst shall be identified for each tube analyzed on the applicable data sheet. 11
- 14. RECORDING CRITERIA: All signal indications evaluated to be one of the indication designations listed in Table I shall be recorded by the appropriate method. Customer recording requirements shall supercede this procedure.
- 15. REPORTING CRITERIA: All reportable indications shall be reported to the owner on at least a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> basis. Only reportable
(- indications shall be listed in the final report. Customer reporting requirements shall supercede this procedure.
15.1 All recordable indications evaluated to be equal to or greater than 20% through wall shall be reported.
15.2 All detectable tube dings / dents known to obstruct probe passage shall be reported.
15.3 Any additional condition (s) that the data analyst deems necessary to report shall be reported.
1 Page 8 of 14 f
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- _ -
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l
~ Enclosure BABCOCK & WILCOX W- E-1362 INSERVICE INSPECTION PROCEDURE PageQ3of74 UBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING TABLE I IN 1;Ailch DI5! W il:NS J (6) LTS-2 * (11)0: Wear-Thinning (16) UTS C2*
L
- 2) Ding 1) 00 Long.(7) Crack LTS-B * (12) Plugged (17) UT5 C3*
1;3) Chatter I;8) Misc. (13) Remcved (18) CD Indication 1,4) Loops
- I,9) Special Tubes (14) Stabilized (19.) ID Long. Crack (5) LTS-1 * (10) ID Indication (15)UT5C1* '(20)Permeatility (21) E Distertad T5 or TSP (1) (2) (4) I J (3) (s) a
- k r _
m, w i l' I (16) (15) (10) ' (7) (6)
( b A % M Q p % N ,
(17) (18) (j g CD 1 I (2) Dings / Dents - Categertred as small (0 to 2 volts), medih (2 to 4 volts).
large (4 to 8 volts), and extra large (8 volts or more) from horizontal amplitude.
(4) toops - Structural response from support plate overlap (ma :way area) ;
(t) Misee:2aneous - Any indication other than 1-7 or 9-20. !
(9) Special Tubes - Eleeved tubes, etc.
(11) 0.D. Near Thinning - 0.D. longitudinal defect occurring at a support mer.ber.
(12) Plugged Tube - Explosively plugged. '
(13) Removed Tube - 3o indication.
\
(14) 5tabilized tube - Welded nail plug.
Pa ge 9 o f 14
( 20 ) Permoebility - Can appear as an 2C or C defect er ncise.;
i
(.M e Ne hkaOS 'a e I M ge 9
Enclosura ST-HL-AE-1362 BABCOCK & WILCOX PageQG of 74 INSERVICE INSPECTION PROCEDURE
--=_ - - - . ,
e UBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM ISI-460, Rev. 11 GENERATOR TUBING o
_7 vu v 3
1 I f Composite Signal Analyzed Signal S/N = VS TN a) Determining S/N ratio for multiparameter and computerized
{ analysis of indication interfered with by the edges of .
tube support plates or tube sheets, t
\ ,
, _ _ _ y y ,
V 3
S/N = 7N b) Detemining S/N ratio for indications occurring at locations other than as defined in (a) above.
i l
i 1 Page 10 of 14 Figure 1. Determining the S/N Ratio of Indications
_, _ -. , - - - . . - - - - . . - _ - _ - - . - . - . . -- - - - - ------ - -l
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Euclosure ST-HL-AE-1362 BABCOCK & WILCOX Page47 of 74 INSERVICE INSPECTION PROCEDURE IBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING a
l 90' 1 11*
1 i
/
i
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/
/
/
. /
Page 11 of 14 Figure 2. Phase Angle Measurement Convention
r Enclosure ST-HL- AJ-13 62 Page 9) of 74 BABCOCK & WILCOX I INSERVICE INSPECTION PROCEDURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev.11 GENERATOR TUBING l
{
i l
f
- m 1 i i
i V
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Page 12 of 14 Figure 3. Typical Assignment of Phase Angles
v 7
Enclosure BABCOCK & WILCOX ST-HL-AE-1362 INSERVICE INSPECTION PROCEDURE Page*/Gof74 t
sv8 JECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING Steep Cheet T*
911-te. i.) .le .
m ,
.. . ,; , ,., ae..ti-
-Je . .
'"' :N . 6 . 6 i (5)
, a - - . L r
s .4 . I M' " l 3
... .6 o .
J' dl t - Te .i 1 , .I g j l -e_ s '/.# t se 11 i
, ,k C ' '
e defect f 2 III
- i. 'l 4
.[ .. f .tj 8
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- . : / -; e .! t .4 -al j '.
- s ) , . s , et ..I i's e . 1 t '.e t s :.t e 4 >( 1. i I
. e e l 4.. a . I
, e . j i e4 i e , 6-.
, . ) i Deshe scae j
. . N g , g C d rection s t / . e s (0*54) 1., .
6 e e s 6 1 il
. I, . . . e
. i . .
. .,; ; __ J * * '
- 6 der eg: #1
- (2)
$ & , ?
e ) e s t
, ,,' d '
I 1 Li } Ts* #3 til k
, -gn;p
- , ., y si.e (c)
ChU* DIt!CT304 p- . . .j . .,:n.
g Eresspie: Distances of defects II and il from thie 4th tube soccet plate to en C 3E tete.
St-?; CN et values '
tsieve P'_,1 8 cal if es+s teat 4 3) 's . 15 m (eefect fr) statance bet.ee Tse #3 and Tss fa is 4: tace ,s..
L4-2) e = ic' = (sefect #1)
La-1)
- C
- ectual dista*ce es., va's Cate.itatiers defect f; dtst.ance fee. 4th 71P = f s 40* e h a SC
- 38' ,
(repe .sc o* esta sheet at 8 33.8*) '
defort #7 tietasca *am eta T$e = f s 40* . h a as e g*
i , ta .~t .s . . . 3-)
Page 13 Of 14 Figure 4. Typical Calculation of Defect Axial Location in Once Through Steam Generators
I , 1 Enclosure ST-HL-AE-1362 BABCOCK & WILCOX '8* O INSERVICE INSPECTION PROCEDURE J __
JBJECT: TECHNICAL PROCEDURE FOR THE EVALUATION OF Procedure No.
EDDY CURRENT DATA 0F NUCLEAR GRADE STEAM 151-460, Rev. 11 GENERATOR TUBING t
M '
, (Lecatten). .
.e .Y 8 6 ;
.M ...
'3 ; % .
e
, , . (e)
I.,4 t *Miii $ 15' 8' }
i (t)
- r. , . , 6.ei ;,
t e l , e .( - a , . g d' d b
.t t ..t # l .!
', b: a .med, f -. . 8- - '
e III defect #1 t i..l. . , i . i.a
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- i i ,I t- t .1 et
. :t .g ' 4 4 .. - l *il ,
- 4
- . .e T -6 ..l..a 1 -l .a f
'*: t; *l y ,t !: .. l ,t. a e ts_ i e . .. l. ( ,j .! .,) ,l. .
ia :, 4 l ; .:6. t .. g. i' .. B
, t.e, .I 0/ t 'r1 et il
. . , t' -l .] .*i 1 6 *
- Prthe Sc4* l g e .g ..: .{ C direction y i f .I / e 6 4 .t t (R$g) t . 1s 4 4 j .4 ,
( .
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. 6 i 4 , e 6 I ..i e s = s e e q t 1 a.- C . , ,,,,,,, m
! e i e t
. 7 i a . i e I
- . - J ..:
- *j g ,
t i (8)
, a .
. . Q, . s a ' s } T58 #3 k
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- a , C84AA* D!t!! TION
{. e . . , . ,[ ..(. t
-' t'F s ! 'g
- !- (,} gigg, ,,,,,ga)
W fv strip tha*t I m ation , s points. t Esamsle: Distances of defects il and #2 free the 4t% tube support te .a R$1 tube,s 1 State Chart valves Exe Panics 1 Cier-stoms I 4-2) + A = 19 en (sefect #1) Distan:e betweet T58 #2 ene T5' f a is 4* tatter..'
I 4-!!
- B = 101 er (de*e:t #2)
F4-1)
- C = 1?* sm (T5F to T5P)
- Actua' itstance may va i.
C. tee . tie .
erfect #1 distance fase at> T5P f a 4t* e 4& h r6*
(rw.-t,< . at. . w t es a . s-)
er t n e st ce e. et. rw . j s e g eer.-
(-..-...-)
1
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Page 14 of 14 Figure 5. Typical Calculation of Defect Axial Location in l Recirculating Steam Generators l 1
BABCOCK & WII.40X Enclosure ICSERVICE INSPECTION PROCEDURE ST-HL-AE-1362 Page g] of 74
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF r EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462 Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS PQ No.: 462-1
- 1. SCOPE: This procedure shall govern the evaluation and reporting of eddy current data for the determination of debris, sludge and
. secondary side loose parts in steam generators. This evaluation is provided for information only.
- 2. DATA ANALYST QUALIFICATIONS: The data analyst shall be qualified to a minimum of Level II in accordance with Babcock & Wilcox Company Administrative Procedure 151-24. The analyst shall have also received specific training for the evaluation.of data from nonferromagnetic tubing. The analyst shal1~ evaluate the data and report the results of the examination.
- 3. EQUIPMENT: The following equipment is considered acceptable for sludge and debris evaluation and shall be utilized in one of the following combinations. This equipment shall be certified when applicable in accordance with 151-80.
3.1 MIZ-12 Multifrequency Data: Option 1 3.1.1 Storage Scope
(. 3.1.2 Hewlett Packard 3968AZ series eight channel tape recorder with voice log capability or equivalent.
3.1.3 Hewlett Packard 7402A with 17402 inserts, or Soltec 8K29, or equivalent.
3.2 MIZ-12 Multifrequency Data: Option 2 3.2.1 Hewlett Packard 3968AZ series eight channel tape recorder with voice log capability or equivalent.
3.2.2 Zetec DDA-4 (Digital Data Analyzer) with Edition 12
- sof tware and A/D converter 3.3 MIZ-18 Multifrequency Data
3.3.1 Data Cartridge Tape Recorder 3.3.2 Zetec DDA-4 (Digital Data Analyzer) with Edition 18 software.
i AlMINISTRATIVE APPROVAL TECHNICAL PPR V L (LEV. III) QA APPROVAL
_h(d A sh $hAf / N/A IU5UED4PEVI5{gp1T I55UE DATE REVISION DATE PAGE NO.
pe' r ur- 2-28-83 07-31-85 1 DF 8
..__--.,_._________.____..,_.-_m, _ _ _ , , , , - _ , , _ _ __ . ,_______.-._ _ _ _ _ . _ ,,._,_ __,. - ,,... ,,_ _ .-._,.,,_,,.- ,.__ ,.._,
r Enclosure ST-HL-AE-1362 Page $'p of 74 BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462, Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS l
- 4. DEFINITIONS: The term " debris" shall be used to identify magnetite on the secondary side of steam generator tubes in the area of the tube sugport plates or the free span area of the tube. The term l
" sludge shall be used to identify magnetite accumulated on the secondary face of the tubesheet. The term " secondary side loose parts" refers to any eddy current signal attributed to foreign material, other than sludge or debris that is not normally associated with the steam generator secondary side design.
. l S. AREA 0F INTEREST: The evaluation of data shall concentrate primarily on the intersections of the tube with the tube support plates and tubesheets for debris and sludge evaluations and tube free span regions for loose parts unless otherwise specified by the customer.
- 6. DEBRIS EVALUATION:
o 6.1 Reference the operating procedure used to detect debris.
k 6.2 Playback the appropriate channels of magnetic tape data through the storage oscilloscope or the DDA-4 for presentation of the appropriate signal.
6.3 The storage oscilloscope, if used, shall be viewed at 1 volt / division. The DDA-4 shall be viewed with a span setting such that the tube support plate signal fills 80% of the screen height.
6.4 The location and classification of debris analyzed will be determined in accordance with Figures 1 and 2 and reported on an appropriate data sheet.
6.5 The debris signals shall be quantified as small, medium, or large according to the approximate voltage of the signals beyond that exhibited by the " sock-up' TSP calibration standard as illustrated in Figure 2.
6.6 Knowledge of the probe scanning direction (insertion or.
retraction) during acquisition of the data is essential to properly locate the debris signal with respect to the tube support plate, e.g. upper, middle, lower (Figure 1).
(
1 Page 2 of 8
r 1 Enclosure ST-HL-AE-1362 Page f3 of 74 BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE
_( !
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE.AND 151-462 Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS 6.7 Variations in support. plate material, probes, and exact debris.
chemistry in a steam generator will cause some deviations in signal patterns.
- 7. SLUDGE EVALUATION:
7.1 Reference the operating procedure used to detect the sludge.
7.2 Playback the appropriate channels from the magnetic tape dctc for presentation on the CRT and strip chart recorder if used.
The DDA-4 electronic strip chart may also be used.
7.3 Figure 3 illustrates the eddy current signal strip chart responses from'both a clean tubesheet secondary face and from sludge accumulation on a tubesheet.
7.4 Determine the actual tube support plate thickness in steam ~
generator (specifically the first tube support up from the
( tubesheet).
sludge depth.
to 1.5".
This dimension shall be used to calculate the Typical support plate thickness ranges are 0.62" 7.5 Determine probe direction during data acquisition.
7.6 Record the signals from the support plate used as a thickness reference and the tubesheet on the strip chart recorder at a speed of at least 25 millimeters per second similar to that shown in Figure 3. Higher speeds will provide more resolution if needed.
7.7 If the DDA-4 is used, record the signal from the support plate and the tubesheet on the DDA-4 oscilloscope. Determine the values for di and d2 in Figure 4 per the DDA-4 Operating Manual.
7.8 Draw the values on the strip chart as shown in Figure 4. (Note that polarity of the strip chart recorder is arbitrary).
7.9 Sludge depth is determined thickness times the ratio ofby(multiplying dj/d 2)* the support plate k
Page 3 of 8
- p. - -
.w. -
Enclosure ST-HL-AE-1362 Page$qof74 BABCOCK & WILCOX INSERVICE INSPECTION PROCECURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462 Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS 7.10 Sludge depth data shall be recorded on an appropriate data
-sheet.
- 8. SECONDARY SIDE LOOSE PARTS: Note: Loose parts can be attributed to materials lef t in the steam generator during the fabrication process as well as pieces of broken. tube support plate. As such the formation of the eddy current signal can be highly variable. To be detected the, loose part must be a conductor.
8.1 Reference the operating procedure used to detect sludge and debris.
8.2 Play back the horizontal (H) and vertical (V) components of the low frequency channel on the CRT and strip chart recorder, if used. The DDA-4 electronic strip chart may also be used.
8.3 While monitoring the data for sludge and debris any eddy v current indications observed which are not attributable to sludge and/or debris deposits shall be thoroughly investigated
( (i.e., other frequencies) as a possible loose part.
8.4 Indications which can not be resolved as typical of the normal secondary side design shall be identified on the debris data sheet and reported to the customer as a suspected loose part.
8.5 The reporting of suspected loose parts shall include the approximate axial location of the condition, as well as the j tube number and steam generator.
8.6 It is re' commended that the suspected logse part condition be evaluated, when possible, using secondary side visual inspection.
- 9. DATA REVIEW: All data sheets shall be reviewed for completeness and accuracy following the evaluation and reporting of data by the i
Analyst. This review shall be done by another Level II or III individual.
l l
( Page 4 of 8 )
Enclosure ST-HL-AE-1362 Page 6$of 74 BABCOCK & WILCOX INSERVICE INSPECTION PROCEDURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462. Rev. 3 i
SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS Probe Scanning Direction O h l ei M
lL i Edge _;
)
i 1- '
Iamme Edge U-) J q
nue oo%:
~
t t/
l l lk i I
htire lI [
MI (E l_ l i l
Batire' ,
Ehdium(1 2 ]- l
- l /8 btire 1 l W8833 i.
Ni
! & w , / l swer l mmecx ' \
/ h Su ria enly d >
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m
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wt b Page 5 of 8 Figure 1. Debris Location and classification.
f
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r-Enclosure ST-HL-AE-1362 Page7% of 74 BABCOCK & W1140X INSERVICE INSPECTIOti PROCEDURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462, Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS l = ;!
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I Figure 2. Typical Debris Signal Sizing Technique Approximate Sizing Technique Saall is 0 to 1 volt beyond that exhibited by the TSP Standard.
Madium is 1 to 2 volts beyond that exhibited by the TSP Standard.
Large is greater than 2 volts beyond that exhibited by the TSP Standard.
k Page 6 of 8 f
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Enclosure ST-HL-AE-1362 Page g-'[of 74 BABCOCK si WI140X INSERVICE INSPECTION PROCEDURE
(
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND ISI-462, Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS V u Tube
% l H. + -
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as Sto sludge on tubesheet .
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al sloege on tubesheet
' - Ffgure 3. Typical Strip Chart Responses fron Sludge and TSP k
Page 7 of 8
Enclosure ST-HL-AE-1362 Page d of 74 BABCOCK si WILCOX INSERVICE INSPECTION PROCEDURE
SUBJECT:
TECHNICAL PROCEDURE FOR THE EVALUATION OF EDDY CURRENT DATA FOR DEBRIS, SLUDGE AND 151-462. Rev. 3 SECONDARY SIDE LOOSE PARTS IN STEAM GENERATORS m risontal
? li; I,4 ill iii! i 'i ll;. llll "ll i
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j Elll{!i Mi ii[ fi! ;lli !.l l!!! l l "
l 1i .u- '! :li ll! I ll lj i f
i 4 i.
M..lb SI li
... 3 'll; I
- Ill i ll _ _i sludge depth = (TSP thickness) Id1 I (Q) l l
l Figure 4. Typical Strip Char t Analysis for Sludge Depth
, Page 8 of 8 j
Enclosure ST-HL-AE-1362 Page gg of 74 3.0 CUSTOMER APPROVALS The supplier engineering doctment transmittal forms located in this section indicate HL&P's acceptance of the referenced B&W technical procedures and drawings for use during the preservice eddy current examinations at STP-1.
C3065 3-1
I l Enclosure /M #~ <
. ST-HL-AE-1362 t Page bO Of 74 f SUPPLIER ENGINEERING DOCUMENT TRANSMITTAL M j SHEET 2 OF 4 DOCUMENT STATUS CODES:
TOi B&W DATE .loly 19. 10R8i 1 WORK M AY PROCE ED SUPPLIER . 2 RE VISE AND RESUSMIT, WORK M AY PROCE E D SU5 JECT TO INCO RPO R ATION O P CH ANG ES INDIC AT ED.
3 R E VISE AND RE SUSMIT. WO R K M AY NOT P ROCE E D.
4 RE VIEW N OT RE QUIRE D, WO R K M AY PROCE E D.
N 3110 Odd Fellows Road 7 IN FORM ATION ONLY -g E
8 Lynchburg, VA 24501 REQUIRED ACTION BY SUPPLIER:
a RESUSMIT SY (DATE) .
D. SHOW SUPPLIER ENGINEERING DOCUMENT LOG FROM: NUMBER ON TR ANSMITTALS.
HOUSTON LIGHTING & POWER CO.
SOUTH TEXAS iROJECT P.O. BOX 1700 HOUSTON TEXAS 77001 9
- ATTENTION - 'M'OaTANT PE RMISSION TO PROCE E D DOES NOT CONSTITUTE ACCEPT ANCE OR APPORV AL OF DESIGN DET AILS. C ALCUL ATIONS AN ALYSES. TEST M ETHODS. O R M AT E RI ALS D E VE LOPE D OR SELECTED av THE SUPPLIE R AND DOES NOT RELIEVE SUPPLIE R F ROM FULL COMPLI ANCE WITH CONT R ACTUR AL PURCHASE ORDER NO. ST-M0171 O s LIG ATIONS.
ENCLOSED IS ONE (1) COPY OF THE FOLLOWING DOCUMENTS:
'7 /' FOR HL&P USE ONLY LIE 14 ENGINEER G DOCU E T NO. REV DOCUMENT Tl_TLE f. SU SH . .
li 1157F54A 1 0 cal Standard Efb/7/ -Coo.2r-A - 7E Z.s
- 9) 11 oloin 1 1 T e r m ne<nn naar 6,n 3co/'71-cooJA -b '7E 23
~ 1-seinhly and flota%1e I
- 3) 151-4A1 28 0 Technical Procedure for the 500/7/ -onoJ7"A '76 S uniltifrecuency addy current .
examinatinn n'f DRP. tubinn in
F7 eteam noneratnet usinn '
the MIZ-15 i
- 4) ISI 460 '
14 1 1 Technical Procedure for the 30D/7/ tbo.ES- A -7F 2.
evaluation of addu current data of nuclear nrade eteam oenerator tubino' I
1 I ,
- . s NE '
- I IGNED S h DATEb d-Eh-
,, g . H M --
. SUPPLIER
. ' ) *. .
l .._ .- ... -. Y. . r . b+s'd.
t
..a 4 e =
Enclosure ST-HL-AE-1362
( Pags(g) of 74 ATTACle2h7 HL&P Comments on 361 Drawing 1157654A
" Cal. Standard" COMMIh7 NO. COMMENTS 1
The tcJercnct of the .786" ID ring should be
+.001" or .003".
2 Tre tcicrance of the tube OD should be +.004" or
.006".
3 ,
The tolerance of the 10:' I1m CD notch should 2.0009" in depth.
4 The drawing must be approved and issued fine]
before it is used for frtrication.
l l
l
.I S3/ STAR /ii
-3 Enclosure
( ST-HL-AE-1362 Pagelo b f 74 ATTACHMEhT
( HL&P Comments on Procedure ISI-441 Rev.0
" Technical Procedure for the Mult! frequency Eddy Current Examination of RSG Tubing In E2 Steam Generators Using the MlZ-18."
Cmmen+ No- Comunents
-1 The procedure must be approved by B&W before use.
2 in Paragraph 4.6.1, "strainght" should be " straight".
3
- In Paragraph 4.6.3, " Figure 1" should be " Figure 3".
4 Figure 1 should be included before use.
5 The nominal wall in Paragraph 1 should be ".043 inch".
6 The location of Row 1 Col 1 should be clarlfled in the text of 5.2.
t t .
l
.S3/2-V.
f l Enclosura
( ( ST-HL-AE-1362 ass 43 of 74 l
ATTACHMENT HL&P Comment On Procedure 151-460 Rev. 11 I
" Technical Procedure for the Evaluation of Eddy Current Data of Nuclear Grade Steam Generator Tubing" C(NMENT NO. COPNENTS 1 Delete the evaluation option of 5.2 and use the provisions of 5.1 for PSI.-
2 The procedure should be approved by B&W before use.
l i . l 1
)
Enclosure
- ( ST-HL-LE-1362 Page 4,7 Of 74 l SUPPLIER ENGINEERING DOCUMENT TRANSMITTAL SHEET 2 OF 4 DOCUMENT STATUS CODES:
TO:
DATE S~ b' s WORK u Av PROCEED SUPPLIER ,
a REvlSE AND RESusulv,wCRx M Av PROCEED Sus >ECT 8 TO INCO RPO R ATION OP CH ANGES IN DIC AT E D.
3 RE VISE AND RESUSMIT, WORK M AY NOT PROCE ED.
I j) 4 RE VIEW NOT RE QUIRED, WORx M A Y PROCE ED.
MW 7 IN F ORM ATION ONLY l 1.ydeh harj, @ wol REOUIRED ACTION BY SUPP ER a RESUSMIT BY (DATEl
- b. SHOW SUPPLIER ENGINEERING DOCUMENT LOG FT.OM:
- NUMBE R ON TR ANSMITTALE HOUSTON LIGHTING & POWER CO.
SOUTH TEXAS PROJECT 4 P.O. BOX 1700 HOUSTON, TEXAS 77001 ATTENTION: 'w*oataNT PE RMISSION TO PROCEED DOES NOT CONSTITUTE ACCEPT ANCE O R APPO RV AL OP DESIGN DET AILS, C ALCUL ATIONS AN ALYSES. TEST M ETHODS, O R M ATE RI A LS DE V E LOPE D OR SELECTED BY THE SUPPLIER AND DOES NOT RELIEVE PURCHASE ORDER NO. ]gg77/I SUPPLIER P ROM PULL COMPLI ANCE WITH CONTR ACTUR A.
o s tlG ATIO y S.
ENCLOSED IS ONE (1) COPY OF THE FOLLOWING DOCUMENTS:
FOR HL&P USE ONLY sn DOCUMENT TITLE SUPPLIER ENGINEER G DOCU E T NO. REV SH $
4 uA-.; r, 9 PuenAna L 1b. Sool?l-nw%29- A- TE 2- -
%, L, mL s) /JLA (Emu f f N& A E.llu. Lda i hh a Z,su AM ht Lt> ~ 9/Lo>> %
l f
i I /!
SGNE DATE A "/3 '8 IGNED h DATE -k* b g o -
oi, SuP,u ER
b '
Enclosure i ST-HL-AE-1362 Page67of74
, ATTACHMENT HL&P Comments on B&W Procedure 151-462, Rev. 3
" Technical Procedure for the Evaluation of Eddy Current Data for Debris, Sludge and Secondary Side Loose Parts in Steam Generators."
t% nant No. fhenants 1 in section 3, it should be stated that the listed equipment or its equivalent is required.
1
(
ss/2-vv. _ __ __. _ _ _ _ . _ . ._ _.____.____ - - - _
Enclosure
( ST-HL-AE-1362 Page bh of 74
(
r
- 'a'4""lT'"'Joo/7/-doogitA g SAPO RT ANT P.rmle.fon e. pr etf af e not con.thv.s g= .n
-i ?r. ,.a 7/."u*
.. 3 2.t.." ,W
- n. .
t,
,"4'a--*" "" -"a ~~n., '
DATE ST AT HECE1VEC RE CE IVE D [ - $~-f _( USED SY gg DOCUMENT ST ATUS HL&P b MUU 1Q APPROVED FOR USE/
2 WORet M AY PROCEED.
. . ., . *. , . a p
% APPROVED FOR USE AS IGNED
- NOTED/ REVISE AND RESUSMIT, WORK M AY #* **
PROCEE D SUBJE CT TO 4 AT R CTON ND C#TED.
C NOT APPROVED / REVISE bb " N$
AND RESUSMIT. WORK SOUTH 4 M A Y NO A$
O= =c'^'T PROCEE D.
JECT ET.
ros.RM . .,S, h
f '
1
Enclosure ST-HL-AE-1362 Page Q of 74 SUPPLIER ENGINEERING DOCUMENT TRANSMITTAL k 3 SHEET 2 OF 4
. TO: DOCUMENT STATUS CODES:
DATE AuCL 6 19R5 , .O R K M A v ,R OCE E D -
SUPPLIER J /
,. . 2 REv:SE AND R ESUSMIT. WORK M AY PROCE E D SUBJECT
.) 70 INCORPOR ATION OF CN ANGES INDIC ATED.
g BCL(UCO -
liC0K 3 R E VISE AN D R E SU BMIT. W O R K M A Y N OT P R O CE E D.
4 REviEn NOT REOUiRED. wCRK u Av PROCEEO.
- 7 IN FORM ATION ONLY e
O 3'.10 Odd Fellows RA
? L e/% )
%. REOutRED ACTION SY SUPPLIER: g 1 a RESUSMIT SY ID ATE a SHOW SUPPLIER ENGINEE RING DOCUMENT LOG HOUSTON LIGHTING & POWER CO.
. SOUTH TEXAS PROJECT P.O.'80x 1700 s.
, HOUSTON. TEXAS 77001 ATTENTION: -* 0"T^N' *
( PERMISSION TO PROCE E D DOES NOT CONSTITUTE ACCEPT.
ANCE O R APPO R V A L O F DE SIG N D LT AILS. C ALCUL ATIC N S.
O S LIG ATIO N S.
l ENCLOSED IS ONE (1) COPY OF THE FOLLOWING DOCUMENTS: .
FOR HL&P USE ONLY SUPPLIER SUPPLIER ENGINEERING DOCUMENT NO. REV DOCUMENT TITLE SH DOCUMENT LOG NO. $
sn iiGIMI D Z. *Tu RE EX PAM 3lo o w DI- 8MR6- C - 7E I aAotKt4 P A 5%E ff\RLY I APJ D DE~T A1! S '
l l l e
1 o
?
( L I
i /? .
I SGNE ^ '
DATE A --f*M SIGNED h DATE AL'ap , . L SUPPLIE R ' /
Enclosura l ST-HL-AE-1362 {
l Page @ of 74 )
l i 4.0 LISTING OF TUBES CONTAINING EXPANSIGHS This section contains a list of tubes in each of the four steam generators l
which contain expansions in the preheater region. l The expansions exist in the B and D tube support plates of the 160 tubes in each of the four steam generators. In addition, expansions exist in the G and K tube support plates (as well as B and D TSP's) of all the tubes in Row 48 l l
of steam generator C. Tubes R47C52, R48C70, R48C80, and R47C94 in steam j generator D have been removed from service by plugging and can not be l
examined.
TUBES CONTAINING EXPANSIONS 4
, Row Colunns 1 36 59, 62 37 59, 62 38 59, 62 39 59, 62 40 59, 62 41 59, 62 42 59, 62 !
43 21, 22, 59, 62, 99, 100 i
, 44 22, 23, 59, 62, 98, 99 l 23, 58, 59, 62, 63, 98 45 l 46 24, 25, 50-59, 62-71, 96, 97 l 47 26, 27, 43-59, 62-78, 94, 95 I 48 27-59, 62-94
(
C3065 4-1
f Enclosure ST-HL-AE-1362 Page % of 74 5.0 DRAWINGS Included in this section are drawings of the calibration standards to be used during perfomance of the eddy current examinations (drawing mmbers 1157654B-0 and 1157789B-0) and a drawing depicting the tube expansion mockup assembly and details (drawing no. 1157191D-2).
I C3065 5-1
7 t
l non=e.es
. on- s.wucon SLh*POtr 94 A TE SAMPLE RING payseconag T 2~ O. D. ACV/NA L ,,,, os.c,,nion. .m -u
.7 @ .$8k B026 1 ga vsso r. As ows r sovn Joc w
. 75 THK too4
.043
WALL NOM.
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= 25.41 ;-
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REQD ID.N07CW C.D WTCH OD.WTCW 4 HOLES 90* APAR'r MOLE NoLE HOLE //0LE LOCA7 ton A B C O-1 D-2 D 3 D-4 E F~ G H
+ ~
woDN DEDA .o72 .14 0 .Ss5 .18 8 .188 . /88 ./8 8 .18 8 .it o .079 .052 Y DEPTH 00st A ng, 90424 .ocet. A% .0089 .0 08/ .0075 .0083 . O /G S .0 2 + .03Z THRU g _96 THRU 15.4 90 18. 4 18.4 d.4 17 o 12. 8 37.5 GQ 72,7 /00 AvtRasE to . I TV6E MATL /NCOVEL GOO ($8 AG3) Ct/sTOMER
- Hous70At Pow 4'gpggy SUPPORT /4. ATT A44TL - A-285 GRADE C 3/72 : 5TPEG.)
CcwT44c7 Not (,47-ooo3>-co-13 TOL. 2.01 E1 CEPT AS NOTED y,7pgggy yo; 4 9jz y ni ;
4 */o THRu &se4LLS CALCul ATED oN 2k 0 TNF MEA 5uRED WALL ~THIC</VESS. mT 8 WA M. THtCWNE53 MEASt/ RED.044 CR Q O e m
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19L. ROf ERCKPT AS MOTED CawTRAer AD: s*F*** 9 -**-13 yy y 4y o> a :
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Enclosure ST-HL- AE-1362 Page 77of 74
( APPENDIX A This appendix contains the following procedure which will be used for performance of the eddy current examination of the expanded region of the steam generator tubing.
Number Title Revision 151-442' Techncial Procedure for the O Examination of the Expanded Region of the Steam Generator Tubing (To be issued at a later date)
(
C3065 A-1
i
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Enclosure ST-HL-AE-1362 Page 7f of 74
' 6.0 PREVIOUSLY USED PROCEDURE LISTING Included in this section is a list of procedures which were previously used during the nondestructive examinations. These procedures have either been replaced or deleted and are listed for reference purposes. The originals are kept on pemanent file within Babcock & Wilcox and are available upon request.
NUteER , TITLE REVISION t
l 1
[
C3065 6-1 ;
l