ML19340C942

Preservice Insp Program,Procedure 80A0481,Revision 4 to Ultrasonic Exam Procedures for Piping Butt Welds & Longitudinal Welds

ML19340C942
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	07/11/1980
From:	NUCLEAR ENERGY SERVICES, INC.
To:
Shared Package
ML19340C941	List: ML19340C940 ML19340C942 ML19340C944 ML19340C946
References
80A0481, 80A481, NUDOCS 8012180304
Download: ML19340C942 (31)

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PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE I

CF 31 ULTRASONIC EXAMINATION PROCEDURES FOR PlPING BUTT WELDS AND LONGITUDINAL WELDS LONG ISLAND LIGHTING COMPANY SHOREHAM NUCLEAR POWER STATION UNIT 1 D

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Date REV. NO.

DATE NES E'2# ~77 j

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. ISI Level ill Date j

0 8/1/77 NES

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12/20/77 QA Hgr.

Date 3

9/1/78 LILCO X-. e V

4/3/78 Date 4

7/11/80 A

Date 6

NUCLEAR ENEFIGY SERVICES, INC.

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PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 2

0F 31 l

2 Rev.

Prep'd i

No.

Date Description Reason by App'd by 1

10-15 p.I

Add " Level 111" LlLCO comments of 10-14-77 NES LILCO Delete "S&W" HARTFORD comments of 10-10-77 M 1.2.2:

Delete "and/or TU/'t scan fixtures" 2.1 (6) : Delete entirely 5.2.8:

Re-numb'er as 5.2.9 5.2.8: "All examination weld / areas....

be so recorded."

5.4.2: Delete entirely, delete "5.4.1" 5.6.2:

Change 1/64" to 1/32"

6. l (1) : Add "in compliance with Ref. 2. l(1)"

6. l (7): Add " thermometer" 6.2(29) and (30): Delete, Re-number (31)

(32) (33).

8. l (2) : Spell out FSH.

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8.3.4 (T > 1")(b):

Correct

" positions" 10.1.3: Add "as indicated in appropriate isometrics."

11.1:

"The data sheets..

... Code inspector."

a NUCLEAR ENERGY' SERVICES, INC.

a PROCEDURE NO.

80A048I

SUBJECT:

PIPING VELDS PAGE 3'

0F 31.,

Rev.

Prepfd No.

Date Description Reason by App'd by I

10-15 11.3.1: Delete reference NES tlLCO to S&W E&DCR -

g A5210.40

',8 11.3.2: Change 'ES&W"[to "LILC0" p.27, 28, 29: Add sign.

line for

" reviewer".

2 12-77 Pg. 27: Delete"T/8" f

A MS

1. 1. /7t 3

9-78 5.6.1: Add "Pulingraphic For clarification MG 7<s datun... to the weld 9/u/74 5.6.2:

Change to: "If For clarification aatun tarxings.;..

follo41ng nunner..

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5.6.2: Change to: (1)

Peorganization

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l rj 5.6.3:

Change to: (2)

. Reorganization l

5.6.4: Change to: (3)

Peorganization 5.6.5: Change to: (4)

Reorganization l

5.6.6: Gange to: (5)

Peorganization 4

7-P0 Deleted old Figs. 7,8,9, To reflect new information g

10. Add new Cal Data Change page no.accordingly, h-l p

f/[I8 j

Sheet.

Fig. 7, 8, & 9.

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t NUCLEAR ENERGY SERVICES, INC.

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i Pft0CEDURE NO.

80A0481

SUBJECT:

PIPING WELOS PAGE 4

0F 31 ULTRASONIC EXAMINATION PRCCEDURES FOR PIPING BUTT WELOS AND LONGITUDINAL WELDS 1.0 SCOPE 1.1 Area of Examination This document covers the ultrasonic examination procedures for:

(1) Austenitic Stainless Steel pipe-to pipe, pipe-to-fitting, and pipe-to-safe-end butt welds and longitudinal welds.

(2)

Carbon steel pipe-to pipe, pipe-to-fitting, and pipe-to-transition piece butt welds.

1.2 Type of Examination 1.2.1 Volumetric examination shall be performed using ultrasonic pulse echo nominal 45 angle beam shear wave and 0 long-itudinal straight beam techniques applied to the outside surfaces of the piping.

1.2.2 The examination shall be performed using manual search units (transducers).

di 1.3' Time of Examination These procedures shall govern the preservice examination and re-exanination of repaired areas of the pipe welds as required by the ASME Boller and Pressure Vessel Code,Section XI.

1.4 Veld Configuration 1.4.1 The pipe and safe-end weld configurations covered by this procedure are shown in Figures 1, 2 and 3 1.4.2 Nominal weld thicknesses rang 2 from 0.276" to 1.781" and are specified in the Tables accompanying Figures 1, 2 and 3 1.5 Materials The piping, safe-ends, and fittings are constructed of austenitic stainless steel or carbon steel.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 5

0F 31

2.0 REFERENCES

2.1 Reference Documents The following documents form a part of this examination procedure:

(1) ASME Boiler and Pressure Vessel Code,Section XI, 1971 Edition, and the Summer of 1972 Addenda.

(2)

ASME Boiler and Pressure Vessel Code, Section 111, 1971 Edition, and the Summer of 1972 Addenda.

(3) ASNT Recommended Practice, SNT-TC-1A, Supplement C, Thi rd Edition (1971).

(4)

ConAm Procedure for Ultrasonic Instrument Linearity Verification, 25-PS-002, Rev. 2, Nov. 1975 (5)

ConAm Procedare for Certifying Inspection Personnel, CUTP-1, Rev. 4, Sept. 1975 2.2 Operation Manuals The eq'Jipment operational manuals for the particular ultrasonic instruments used form a part of this procedure.

3.0 PROCEDURE CERTIFICATION The examiiation procedures described in th's document comply with Section XI of the ASME Boller and Pressure Vessel Code, 1971 Edition, including 1972 Summer Addenda, except where examination coverage is limited by part geometry or access.

4.0 PERSONNEL CERTIFICATION 4.1 Personnel Certification Requirements 4.1.1 Each person performing ultrasonic examination governed by this procedure shall be certified in accordance with References 2.1 (1), 2.1 (3) and 2.1 (5) above.

NUCLE AR ENERGY SERVICES.INC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 6~

OF 31 '

4.1.2 An examination crew shall consist of one or two members as needed. At least one member of each crew shall.have a minimum qualification of Level 11 in accordance wi h the above referenced documents.

The remaining member (s) shall have a minimum qualification of Level 4.2 Personnel Records 4.2.1 Records of personnel qualification shall be maintained by the Examination Con:.-'ctor.

4.2.2 A copy of the examiner's certification summary, and a current eye test as required by SNT-TC-1A shall be filed with each permanent examination record, with a copy submitted to the plant owner or his agent, prior to performing examinations per this procedure.

5.0 EXAMINATION REQUIREMENTS 5.1 Examination Frequency 5.1.1 The nominal examination frequency shall be 2.25 MHz for all straight beam and angle beam examinations.

5.1.2-Other pulse frequencies shall be used if such variables as material attenuation, grain structure, etc., necessitate their use to achieve penetration or resolution. This inform-ation shall be recorded on the data sheets.

52 Examination Angles and Coverage 5.2.1 The intent of this procedure is to prov'ide. maximum exam-ination coverage to insure weld integrity.

Each weld shall be scanned with minimum 25% overlap of the transducer element width. (diameter) for each scan pass.

5.2.2 The rate of search unit movement shall not exceed six (6) inches per second.

5.2.3 Each weld and the required volume (WRV) of metal for one (1) wall thickness on each side of the weld shall be ultrasonically examined using 45 angle, beam techninues applied-in.two direc-tions perpendicular to the weld axis and in two directions parallel with weld axis'and on both sides of the weid where-part geometry and access. permit.

nuctenn ewaov stances.w<:.

PROCEDURE N0.

80A0481

SUBJECT:

PIPING WELDS PAGE 7

0F 31 5.2.4 Straight beam techniques shall be applied, where part geometry permits, to all parent material through which the angle beams will pass during angle beam examinations, in-dications detected are to be recorded in accordance with Section 10.1.1 of this procedure, except in areas where no back echo can be obtained.

Indications detected shall be recorded and data used during evaluation of angle beam ex-amination results.

5.2.5 Other beam angles may be used as determined necessary; i.e.,

for evaluation of reflectors, to compensate for geometric constraints, etc.

All information shall be recorded on the data sheets.

5.2.6 in addition, straight beam techniques shall be applied to the weld and required volume where part geometry permits.

Indications shall be recorded in.accordance with Section 10.1.2 of this procedure.

This shall include straight beam examination of parent material when no back echo is obtainable.

5.2.7 Where the examination surface, geometry, or other conditions (weld, contour, access, etc.) do not permit a meaningful ultrasonic examination to be performed, the examiner shall record the area of non-examination and the particular inter-fering condition in the space provided on the Weld Scan Data Sheet.

In addition, he shall make a sketch of the weld and adjacent pipe and fitting conditions on the reverse side of the same Calibration Data Sheet.

(See Figure 7). Photos will be taken when possible and incorporated as part of the report.

1 5.2.8 All examination weld / areas shall be entered in the space provided on the Calibration Data Sheet.

If there are no recordable indication, it shall be s'o recorded.

5.2.9 Coverage for the welds specified in this procedure is shown in Figures 1, 2 and 3 5.3 Liquid Couplant di I

l 5.3.i The ultrasonic couplant shall be suitable for use on nuclear plant materials and be certified to have less than 1% sulfur and halogens by weight.

5.3.2 The couplant shall be supplied in clean containers of sufficient quantity to perform the examination.

5.3.3 The couplant shall be applied manually with a brush or other suitable device.

Nuctran cuency seawers.we.

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PROCEDURE NO.

80A0481

SUBJECT:

PIPING NELDS PAGE 8

OF 31 -

5.3.4 Miere required, the examiner shall be responsible for renoving couplant from the examination surface at the conclusion of tne examination.

5.4 Surface Preparation All examination surfaces should be cleaned and free of dirt, lA weld spatter, etc., or any other condition which would interfere with the examination or inpair proper transmissim of the sound beam.

N 5.5 Weld Identification Each weld shall be located and identified per appropriate weld maps in the Program Plan Book.

5.6 Datum Point 5.6.1 The examiner shall verify that there has been marked a refer-ence datum point on each weld fran which all examination data and reported indications shall be referenced. Radiographic g

datum markings are to be used if they exist on the base material adjacent to the weld.

1 5.6.2 If Datum markings do not exist, the examiner shall mark the pipe in the following manner:

(1) Datum points shall be marked by the use of low stress stanps or vibratooling and shall not be deeper than 1/32".

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(2) The datum point for all pipe butt welds in horizontal l

lines shall be located on the top of the pipe at weld l

centerline.

(3) The datum point for all pipe. butt welds in vertical lines shall be at the nest visible portion of the pipe

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at weld centerline.

l (4) Imgitudinal weld datum points shall be located at the weld centerline at the intersection with the circum--

ferential weld nearest the reactor vessel.

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(5) Each weld datum point, along with respective weld.

i reference points and divisions, shall be shown on each examination report.

- I NUCLEAR ENERG I

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 9 0F 31 l

6.0 EQUIPMENT REQUIREMENTS 6.1 Examination Contractor's Equipment The following test equipment or its er,uivalent shall be provided by the Examination Contractor for examination of welds specified j

in this procedure:

(1)

Pulse echo ultrasonic instrument (in compliance with Ref. 2.1(1))

Ai (2) Wedge, 45 0

(3) Search Units, 0 ; 1/2", 3/4" or 1" Dia.; 2.25 MHz (4)

Search Units, 2.25 MHz angle beam of a suitable size (5)

Couplant (6) Camera, (7) Thermometer 2h 6.2 Plant Owner's Equipment The Plant Owner or his Agent shall provide the following service facilities and equipment as required:

(1)

Scaffolding (2) Water, Air and Electricity (3) Temporary Lighting (4)

Crane or Lifting Devices (5)

Calibration Standard No. 28-XXI-SS (6)

Calibration Standard No. 24-805-SS i

(7)

Calibration Standard No. 22-080-SS (8)

Calibration Standard No. 20-80S-SS (9)

Calibration Standard No. 12-xxi-SS (10)

Calibration Standard No. 10-80S-SS (11)

Calibration Standard No. 04-805-SS wucuan awenov scavices.wec. - - - - -

PROCEDURE NO.

80A0431

SUBJECT:

PIPING WELDS PAGE lo 0F 31 (12)

Calibration Standard No. 24-080-CS (13)

Calibration Standard No. 20-080-CS (14)

Calibration Standard No. 20-100-CS (15)

Calibration Standard No. 20-120-CS (16)

Calibration Standard No. 18-100-CS (17)

Calibration Standard' No.18-160-CS (18)

Calibration Standard No. 14-100-CS (19)

Calibration Standard No. 12-100-CS (20)

Calibration Standard No. 10-080-CS (21)

Calibration Standard No. 08-100-CS (22)

Calibration Standard No. 06-160-CS (23)

Calibration Standard No. 06-080-CS (24)

Calibration Standard No. 04-160-CS i

(25)

Calibration Standard No. 04-080-CS (26)

Calibration Standard No. 03-080-CS (27)

Calibration Standard No. 03-160-CS (28)

Cailbration Standard No. 2.5-080-CS

- _ _ _ ~. _ _ _ _ _ _ _... _ _ _ _ _..

i (29) Test Surface Preparation (cleaning and finishing)

(30)

Drawings of Each Examination Area (31)

Post-Examination Cleanup of Test Area i

i NUCLEAR ENERGY SERVICES. INC,

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 11 0F 31 7.0 CAllBRATION REQUIREMENTS 7.1 Calibration Standards 7.1.1 The calibration standards designated in 6.2 (5) through (28) shall be used for basic instrument calibration and for estab-lishing reference sensitivity levels for examination of the piping welds specified in this procedure.

Figures 1 through 5 provide a cross-reference between the welds to be examined and the applicable standard.

7.1.2 The appropriate calibration standard corresponding to each respective weld thickness shall be recorded on each Cali-bration Data Sheet.

Figure 7 is an example of the Calibra-tion Data Sheet to be used with this procedure.

7.1.3 Calibration Data Sheets shall be numbered 481-1, 481-2, 481-3, etc., at the time of calibration and shall be signed by the examiner (s) upon completion.

7.1.4 Calibration procedures shall be performed using the 0.D.

surface of the calibration standard.

7.1.5 The temperature of the calibration standard shall be within 25 7 of the pipe weld temperature.

Calibration standard and component temperature shall be recorded on the Calibra-tion Data Sheet.

7.2 Reference Sensitivity Level 7.2.1 The reference sensitivity level shall be the distance-ampli tude curve ini tially obtained di rectly f rom the calibra-tion standard and shall be the sensitivity level used for evaluating and recording all indications.

7.2.2 During actual weld scanning, the reference sensitivity level shall be increased at least 2X (6dB).

7.3 Times of Calibration 7.3.1 Basic instrument calibration shall be performed using the appropriate calibration standard, search units and instru-l mentation immediately prior to the examination of the piping welds specified in this procedure.

wuCu AR ENERGY SERWCES WC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 12 0F 31 7.3.2 instrument vertical linearity checks shall be performed at the beginning of each day of examination in accordance with the procedure references in paragraph 2.1. (4) using an angle beam search unit.

7.3.3 Examination system calibration checks shall be performed least at the beginning and at the completion of each four (4) hour period of examination and/or at the change of exar..-

ination personnel, equipment, search units, coupler shoes, etc., and at the completion of the examination of each similar series of welds in accordance with Sections 8.2 and 8.4 of this procedure.

7.4 Calibration Response 7.4.1 Calibration response shall be checked at the primary

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reference sensitivity level.

7.4.2 Signal response obtained during calibration check shall be within plus or minus 20% of that established during basic instrument calibration.

7.4.3 If any point on the Distance Amplitude Correction (DAC) curve is below the 20% limit, the examiner shall:

(1) Mark all weld data sheets since previous calibration void.

(2)

Recalibrate examination system.

(3)

Re-examine voided areas.

7.4.4 If any point on the DAC curve is above the 20% limit, the examiner shall:

(1)

Recalibrate examination system (2)

Re-evaluate all indications re' corded since the previous calibration at the corrected sensitivity level.

7.4.5 If any point on the DAC curve has moved horizontally more than 5% of the sweep line from its original settings, the examiner shall:

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(1). Correct the sweep calibration and note it on the Calibration Data Sheet.

I NUCLEAR ENERGY SERVICES. INC, 4

PROCEDURE NO.

80A0481

SUBJECT:

PIPING VELDS PAGE 13 0F,31 (2)

Void any data sheets made since the previous calibration which have recorded indication and re examine those areas.

8.0 EXAMINATION SYSTEM CAllBRATION 8.1 Straight Beam Calibration Straight beam calibration shall be performed as follows and as shown in Figure 6:

(1) Adjust the instrument sweep controis so that the examination area is displayed on the CRT screen.

Mark the horizontal screen positions selected for the hole or holes directly on the CRT screen and on the chart on the Calibration Data Sheet.

(2)

Position search unit to obtain maximum response from the side drilled (1/4T if T)1" or 1/2T if T<1") calibration hole.

Adjust sensitivity control to provide a signal amplitude of 80% of FSH*and mark location and amplitude on CRT screen.

db (3) This is the primary reference sensitivity.

Record all sensitivity control settings on the appropriate Calibra-tion Data Sheet.

(4)

This completes calibration for thicknesses of under one (1) inch.

(No DAC is necessary for weld thicknesses under one (1) inch).

(5)

For weld thicknesses one (1) inch and greater a distance amplitude correction (DAC) curve shall be established as follows and as shown in Figure 6:

(a) Without changing the sensitivity obtained in (2) above, position the search unit for maximum re-sponse from the 3/4T hole and mark amplitude on the CRT screen.

(b)

If the instrument is equipped with an electronic DAC device, the primary reference response shall be equalized at 80% of FSH over the distance range to be employed in the examinat,lon.

(c)

Plot a DAC curve by connecting the two signal response

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positions with a continuous line extending over the full examination range.

• Full Screen Height gg NUCLEAR ENERGY SERVICES. INC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 14 0F al 1

(6)

Record all data and instrument settings on the Calibration Data Sheet, and sign and date upon completion.

(7)

Repeat steps (1) through (6) for each different weld thick-ness just prior to examination.

8.2 Straight Beam Calibration Check Straight beam calibration check as required by Section 7.3.3 shall be performed as follows:

(1) Adjust the sensitivity control settings to those recorded for the calibrated reference sensitivity.

See Section 8.1 (2).

(2)

Repositio'n search unit at each respective test hole and observe maximum signal response amplitudes.

(3)

See St; tion 7.4 for signal response requirements during calibration check.

8.3 Angle Beam Calibration Angle beam calibration shall be performed as follows and as shown in Figure 6:

(1) Adjust the instrument sweep controls so that the examination area is displayed on the CRT screen. Mark the horizontal screen positions selected for the hole or holes directly on the CRT screen and on the chart on the Calibration Data Sheet.

(2)

Position search unit to obtain maximum response from the calibration hole (3/4T. i f T>1" or 1-1/2T i f T<1"). Adj us t sensitivity control to provide a sigral amplitude of 80%

of FSH and mark location and amplitude on CRT screen.

(3) This is the primary reference sensitivity.

Record all' sensitivity control settings on the appropriate Calibra-tion Data Sheet.

(4) DAC curves for angle beam examinations shall_ be established as follows and as shown in Figure 6:

)

i

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 15 0F 31 tield Thickness Less than One (1) Inch (a)

Position the search unit for maximum response from the calibration hole at the 1-1/2T position.

Adjust the instrument sensitivity controls to provide a signal amplitude of 80% of FSH and mark location and amplitude on the CRT screen. (See 8.3 (2)).

(b) Without changing sensitivity, position the search unit for maximum responses from the calibration hole at 1/2T, 2-1/2T and 3-1/2T positions respectively and mark location and amplitudes on the CRT screen.

i (c)

If the instrument is equipped with an electronic DAC device, the primary reference response shall be equalized at 80% of FSH over the distance range to be employed in the examination.

(d)

Plot a DAC curve by connecting the signal response posi-tions with a continuous line extending over the full examination range.

(e)

Note position and amplitude of ID and OD notch responses through 3T calibration range, (ID at IT and 3T, OD at 2T).

Weld Thickness One (1) Inch and Greater (a)

Position the search unit for maximum r'esponse from the calibration hole at the 3/4T position. - Adjust the instrument sensitivity controls to provide a signal amplitMe of 80% of FSH and mark location and amplitude on the.AT screen.

(See 8.3 (2)).

(b) Without changing sensitivity, position the search unit for maximum responses from the calibration hole at the l

1/4T, 1-1/4T and 1-3/4T positions respectively and mark A

location and amplitudes on the CRT screen.

(c)

If the instrument is equipped with an' electronic DAC device, the primary reference response shall be equalized at 80% of FSH over the distance range to be employed in the examination.

(d)

Plot a DAC curve by connecting the signal response posi-tions with a continuous line extending over the full examination range.

NUCLEAR E NERGY SERVICES. INC.

PROCEDURE NO.

80A0481

~

SUBJECT:

PIPING WELDS PAGE 16 0F 31 (e)

Note position and amplitude of ID and OD notch responses through 2T calibration range (ID at 1T, OD at 2T).

f (5)

Record all data and instrument settings on the Calibration Data Sheet, and sign upon completion.

(6)

Repeat steps (1) through (5) for each different weld t' 'ckness just prior to examination.

8.4 Angle Beam Calibration Check Angle beam calibration check as required by Section 7 3.3 shall be performed as follows:

(1) Adjust the sensitivity control settings to those recorded for the calibrated reference sensitivity. (See Section 8.3 (2)).

(2)

Reposition search unit at each respective test hole and ob-serve signal response amplitudes.

(3)

See Section 7.4 for signal response requirements during cali-bration check.

9.0 EXAMINATION PROCEDURES 9.1 Straight Beam Examination 9 1.1 Straight beam examination of the weld and required volume zone shall be performed at a minimum scanning sensitivity level of 2X (6dB) greater than the calibrated reference sensitivity level.

9.1.2 A rectilinear scan pattern shall be used allowing a minimum of 25% overlap of the transducer element width (diameter) for each scan pass.

9.1.3 See Table 1 and Figures 1, 2 and 3 for examination summary and scan path distances.

Refer to the Preservice inspection Program Plan for detailed weld locations and identifications.

9.1.4 Continue scanning sequences until all welds have been examined.

Examination shall not be considered complete until all recordable indications have been evaluated per Section 10.1.2.

NUCLEAR ENERGY SERWCES. WC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING UELDS PAGE 17 0F 31 92 Straight Beam Examination of Base Material for Laminations 9.2.1 Straight beam examination of all base material through which the angle beams will pass during angle beam examination shall be performed at a sensitivity level which gives a minimum back reflection signal amplitude of 80% of FSH.

9 2.2 A rectilinear scan pattern shall be used allowing a minimum of 25% overlap of the transducer element width (diameter) for each scan pass.

9.2.3 See Table I cad Figures 1, 2 and 3 for examination summary and scan path distances.

Refer to the Preservice inspection Program Plan for detailed weld locations and identifications.

9.2.4 Continue scanning sequences until all base material has been examined.

Examination shall not be considered complete until all recordable indications have been evaluated per Section 10.1.1.

4 9.3 Angle Beam Examination 9.3.1 All angle beam examinations shall be performed at a scanning sensitivity level 2X (6dB) greater than the calibrated reference sensitivity level.

9.3.2 The search unit shall be swivelled to ensure maximum coverage as it is moved along a rectilinear scan pattern allowing a minimum of 25% overlap of the transducer element width (diameter).

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9.3.3 See Table 1 and Figures 1, 2 and 3 for examination summary scan path distances. Refer to Preservice inspection Program Plan for detailed weld locations and identifications.

9.3.4 Continue scanning sequences until all welds have,been examined.

Examination shall not be considered complete until all record-able indications have been evaluated per Section 10.1.2.

10.0 EVALUATION CRITERIA 10.1 Recording of Indications 10.1.1 For straight beam examinations of base metal for iaminations, all areas giving indications equal to or greater than the remaining back reflection shall be recorded on the appropri-ate data sheet prior to angle beam examination of the weld and required volume.

NUCMAR ENERGY SERWCEE WC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 18 0F 31 (1)

Each recerded area shall be identified as to distance from surface, length and position relative to the weld datum point.

(2) Recorded data shall be taken on each parallel scan pass at increments not to exceed that permitted by the 25% overlap of transducer element diameter (width).

10.1.2 For straight beam and angle beam examinations of weld and heat affected zone, all indications showing a signal ampil-tude response equal to or greater than 50% of the reference response shall be recorded on the appropriate data sheet at the time of weld examination and prior to removing equipment.

(1)

Each recorded indication shall be identified as to

~ depth (as percent of thickness), distance from sur-face, leagth, signal amplitude and location relative to the weld datum point.

(2)

Recorded data shall be taken on each parallel scan pass at increments not to exceed that permitted by the 25% overlap of transducer element diameter (width).

10.1 3 Indications from all welds shall be reported in inches upstream or downstream of the weld centerline 'nd in inches CW or CCW from the weld datum point when looking with direction of flow as indicated in appropriate isometric.

di 10.2 Evaluation of Indications 10.2.1 Evaluation of all indications shall be made at the reference sensitivity and in accordance with the requirements of the ASME Boiler and Pressure Vessel Code,Section XI,15-300.

All evaluations shall be performed by a Level 11 or Level lli examiner.

i 10.2.2 Results of this evaluation shall be reported to the Plant Owner or his Agent in accordance with the requirements of the ASME Boller and Pressure Vessel Code,Section XI, 1S-600.

Disposition of evaluation results shall be made in accordance with the Owner's Plant Procedures.

f NUCLEAR ENERGY SERVICES. INC,

t 9

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 19 0F 31 i

11.0 EXAMINATION RECORDS 11.1 Certification of Records The Examiner shall complete and sign all data _ sheets immediately_

upon the completion of each weld examina_ tion. The data sheets may A

be reviewed by the authorized Code _ Inspector.

i 11.2 Filing of Records The examiner shall be responsible for submitting to the Plant Owner, or his Agent, a completely documented set of examination records including certification of personnel qualifications with a current eye test report in accordance with SNT-TC-1A.

11.3 Procedure Corrections and Additions 11.3.1 All procedure corrections and/or additions required during the preservice examinations shall be made in

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accordance with requirements of NES QA Program Plan # llES 80A0448.'~~

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.A 11.3.2 The examiner shall contact the LILCO representative on 8

site to initiate all changes. All changes shall be documented in the record of revisions section of this procedure.

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1 6

1 1

NUCLEAR ENERGY SERVCES.WC

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS

~ ?O 0F 31 PAGE A

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\\

\\

CI 4501 N

145 I

O WRV 0 WRV 0

%0*

4 445 =

45 =

9 0 '* p T

i 0

N 1

/

o LEGEND l

J_

Perpendicular to weld a

= Parallel to weld

'l Base material WRV Weld and Required Volume W

Weld width STAINLESS STEEL Nom.

Pipe Pipe Actual Calibration Dia.

Sched.

T 0.D.

A B

Standard 28" Special 1.200 28.00 W+3T T+W+T 28-XXI-SS-l 24" 80S 1.219 24.00 W+3T T+W+T 24-805-SS 22" 80 1.125 22.00 U+3T T+w+T 22-080-SS I

20" 80S 1.031 20.00 U+3T T+W+T 20-80S-SS 12" Special 0.607 12.75 W+3T T+W+T 12-XXI-SS

-10" 80S 0.500 10.75 W+3T T+W+T 10-80S-SS 4"

80S 0.337 4.50 W+3T T+w+T 04-80S-SS j

FIGURE I - ULTRASONIC EXAMINAll0N OF 4",10",12", 20", 22", 24", 28" 0.D. PIPING BUTT WELDS IN AUSTENITIC STAINLESS STEEL 7

PIPING.

j n

NUCLEAR ENERGY SERVICES, INC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WEL0s PAGE 210F 31' A

A I

B W ____.

\\

h\\

45,1 145

/

,\\ 0

• NO WRV l

0 WRV U

u 45 -

O*p T

45 - p o

l

[

l i

/

y LEGEND

_L Perpendicular to weld

---

Parallel to weld Base material WRV Weld and Required Volume W

Weld width CARBON STEEL Nom.

Pipe Pipe Actual Calibration Dia.

Sched.

T 0.D.

A B

Standard 24" 80 1.219" 24.00 W+3T 24-080-cs 3

20" 80 1.031 20.00 W+3T T+W+T 20-080-cs 20" 100 1.281 20.00 W+3T T+W+T 20 M F C 20" 120 1.500 20.00 W+3T T+W+T 20-120-cs

~

18" 100 1.156 18.00 U+3T T+W+T 18-100-cs

-18" 160 1.781 18.00 W+3T T+W+T 18-160-cs

~

14" 100 0.938 14.00 W+3T T+W+T 14-100-cs

__12" 100 0.8kl.__12.75 W+3T T+W+T 12-100-c5 W+3T T+W+T 10-080-cs 0334,I_10.75

!n" 80 0.594 8.625 W+3T T+W+T 08-100-cs 8"

100 6"

160 0.719 6.625 W+3T-T+W+T 06-160-cs 6"

80 0.432 6.625 W+3T T+W+T 06-080 cs (CON'T)

FIGURE 2 - ULTRASONIC EXAMINATION OF 2.5". 3", 4", 6", 8". 10", 12",

14", 18", 20", 24" 0.D. PIPING BUTT WELDS IN CARBON STEEL PIPING.

I NUCLEAR ENERGY SERVICES, INC.

I PRLudDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE. 22 0F 31 -

A

=

A f

5

=

w

-W l

(

N QN 1

J i

)T o

o

_L 45 5_L so wgy o way o* y o 45 -

45 S r o*p j

I

/

LEGEND

.l.

Perpendicular to weld Parallel to weld Base material WRV Weld and Required Volume W

Weld width CARBON STEEL Nom.

Pipe

, Pipe Actual Calibration Dia.

Sched.

T 0.D.

A B

Standard 4"

80 0.337" 4.50 "

U+3T T+W+T 04-080-CS 4"

160 3 531 4.50 U+3T T+W+T 04-160-CS 3"

80 3.300 3.50 W+3r T+w+T 03-080-CS 3"

160 3.438 3.50 U+3T T+V+T 03-160-CS 2.5" 80

).276 2.50 W+3T T+W+T 2.5-080-CS l

l i

l FIGURE 2 - ULTRASONIC EXAMINATION OF 2. 5",

3", 4", 6", 8", 10", 12",

l (CON'T) 14", 18", 20", 24" 0.0. PIPING BUTT WELDS IN CARBON STEEL PIPING.

i NUCLEAR ENERGY SERVICES, INC.

n

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE

.23 0F 31'

=_

A

- W +N l

[

N 0 WRV 0 WRV 4

15 45 1 415 y

A(

0*

3 1

Perpendicular to weld

\\

1-

=

Parallel to. weld

\\

Base Material

]WRV Weld and Required Volume W

Weld width LONGITUDINAL Nom.

Pipe Pipe Actual Calibration Dia.

Sched.

T 0.D.

A B

Standard 28" Special 1.200 28.00 W+3tT T+W+T 28-XXI-SS 22" 80 1.125 22.00 W+3}T T+W+T 22-080-SS l

12" Special 0.607 12.75 W+3tT T+W+T 12-XXI-SS 24" 80 1.219 24.00 W+31T T+W+T 24-080-CS l

FIGURE 3 - ULTRASONIC EXAMINATION OF 28", 24", 22" 0.D. STAINLESS STEEL AND CARBON STEEL PIPE AND FIXTURE LONGITUDINAL WELDS.

i r

l l

e NUCLEAR ENERGY SERVICES. INC.

- -- - -- - -- --- A

' PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS PAGE 240F 31

'N t

o c:::::

C r-

\\

Circ. Scan

,s Calibration Hole ll

'l Axial Scan Calibration Hole

-CARBON STEEL Calibration Standard-Wall Hole Hole Hole Number 0.D.

Thickness Diameter Location Length 14-100-CS 14.00 "

938" 3/32" tT 1.5" Min.

12-100-CS 12.75

.844 3/32 T

1.5" Min.

10-080-CS 10.75

.594 3/32 iT 1.5" Min.

08-100-CS 8.625 594 3/32 iT 1.5" Min.

06-080-CS 6.625

.432 3/32 tT 1.5" Min.

06-160-CS 6.625 719 3/32 T

1.5" Min.

04-080-CS 4.50 337 3/32 iT 1.5" Min.

04-160-rs 4.50 531 3/32 4T 1.5" Min.

03-080-CS 3.50 300 3/32 T

1.5" Min.

03-160-CS 3.50

.438 3/32 T

1.5" Min.

2.5-080-CS 2.50-

.276 3/32 T

1.5" Min.

STAINLESS STEEL 12-XXI-SS 12.75 "

.607 3/32" T

1.5" Min.

10-805-SS 10.75 500 3/32 T

1.5" Min.

04-80S-SS 4.50 337 3/32 iT 1.5" Min.

FIGURE 4 - ULTRASONIC CAllBRATION STANDARD FOR 14",12", 10", 8" 6",

4",

3", 2.5" 0.D. PIPING BUTT WELDS IN AUSTENITIC STAINLESS STEEL AND CARBON STEEL PlPING.

NUCLEAR ENERGY SERVICES, INC.

' PROCEDURE NO.

80A0481

SUBJECT:

PlPING WELDS PAGE 25 0F 31 Circ. Scan

_J 2

CIZ :: Calibration Holes O

n lll',

' 's s

Axial Scan Calibration Holes CARBON STEEL Calibration Standard Wall Hole Hole Hole Number 0.D.

ThicknessDiameter Location Length 24-080-CS 24.00 "

1.219" 1/8" 1T,3/4T 1.5" Min.

20-080-CS 20.00 1.031 1/8 AT,3/4T 1.5" Min.

20-lo0-CS 20.00 1.281 1/8 LT,3/4T 1.5" Min.

20-120-CS 20.00 1.500 1/8 LT,3/4T 1.5" Min.

18-100-CS 18.00 1.156 1/8 1T,3/4T 1.5" Min.

18-160-CS 18.00 1.781 1/8 1T,3/4T 1.5" Min.

STAINLESS STEEL l

28-XXI-SS 28.00 1.200 1/8 ET.3/4T 1.5" Min.

l 24-80S-SS 24.00 1.219 1/8-AT,3/4T 1.5" Min.

22-080-SS 22.00 1.125 1/8

__1T,3/4T 1.5" Min.

20-805-SS 20.00 1.'031 1/8 ltf,3/4T 1.5" Min.

FIGURE 5 - ULTRASONIC CAllBRATION STANDARD FOR ?.8", 24", 22",

20",18" 0.D. PIPING BUTT WELDS lh "'sRBON STEEL AND AUSTENITIC STAINLESS STEEL PIPING.

I flUCLEAR ENERGY UERVICES, INC.

PROCEDURE NO.

80A0481

SUBJECT:

PIPING WELDS i

PAGE 26 0F31 1

I

---

3 7.'r'do'f N d N E{I i

3N z

I w

2_

F - < C X X.

'~

)

,'l Ij i

2 ll ll n

o ~c ~c u,,~ce co u s3 g

,p

,p i

i i

t 3

4 z....... ~......... m.<s. ~,

t 1

SET ar 80%CF FULL ac (En

/

/

Ti4

/

3 k

\\4

,,k/ y I,

g f

n FOR TsecxhESS ovtR e INCH ll f

jr

{r gr gr SEARCH UNIT LOCATIONS & DAC CURVES FOR ANGLE BEAM CAllBRATION

• a~.ar attent :t etsese SE T Af $$'fe QF $ y(t, $CD{[N 3T 4

l 1

r-,

T/4 3-T t

N 4

Q

{T lT l

SEARCH UNIT LOCATIONS & DAC CURVE FOR STRAIGHT BEAM CAllBRATION NOTE:

For straight beam calibration on welds under 1" thick, use T hole only, no DAC required.

Step 1

. Adjust sweep controls so that the entire examination aret,.is displayed on CRT screen.

Step 2 - Adjus t sensit ivi ty to provide 80% FSH _ ind.ication f rom h. ole _givi.ng _ ___._.

maximum response.

Mark position on screen.

l Step 3 - Position search unit for maximum response from remaining holes. Mark posi tion on screen.

Step 4 - Plot DAC by connecting points marked on screen with line extended to cover entire examination range.

l Step 5 - Record all sweep and sensitivity control settings on respective data sheets.

FIGURE 6 - REFERENCE SENSITIVITY AND DAC CAllBRATION PROCEDURES FOR ULTRASONIC EXAMINATION OF WELDS.

O NUCLE AR (NERCV 5(RyiC($ NC

'PROCbDURE NO 80A0481 m

Page 27 of 31 Plant / Unit Data Sheet No.

Comp / System CALIBRATION DATA SHEET Procedure No.

ISO Loop

Subject:

Rev/ Change No.

INSTRUMENT SETTINGS SEARCH UNIT Calibration Block No.

Mfg /Model No.:

Scan Angle:

Mode:

Surface Fixturing (if any):

Block Temp "F

Serial No.

Comp. Temp

• F Sweep Length :

Style or Type No. :

Thickness Sweep Delay Size & Shape :

CRT Calibrated in

?ulse Length / Damping:

Freq.2ency Frec.

Rep. Rate:

Serial No/ Brand :

rilter:

Video:

Jack:

Measured Angle.

DEC/ Gate Switch:

Range:

Cable Type & Length:

r! ode Select:

Reject:

Couplant Brand:

Gain (coarse):

(fine):

Couplant Batch:

Scan Sensitivity DAC PLOT 100 %

INSTR. LINEARITY CAL.

i 1

2 3

4 5

SCAN AREA 90 Amplitud l

wEY 80 g

High Low High Low 70 00 ve el 1

5 60

_L To Weld 50 2

6

-f-To Weld 40 3

7 6-

+

+ t +

+

30 Calibration l

I I

4 8l 20 Axial g

l 101 >. li 'lt p. 'titi inn l! tittlti!!litt!!!!Il Cire AMPL. CONTROL LINEARITY O 1 2 3 4 5 6 7 8 9 10 Initial l 6 dB Result 80

-6 80

-12 EXAMINATION COMMENTS / REASON FOR ndications 40

+6 WELD / AREA INCOMPLETED SCAN (S)

Yes No Geom 20

+12 l

1 a

CALIBRATICN CHECTSl TIME Initial Cal.

l Intermediate Intermediate Intermediate Final Cal.

l l

ADDITIONAL SHEETS? (CHECK BOX)

EXAMINERS 1 Date Level Continuatiod Beam Plot 2

Date_

Level Supplements None Date gg..ygugn NUCLE AR ENERGV SERVCES. INC.

FIGURE 7

PRObEDURENO.80A0481 SCAN DATA SHEET Plant / Unit Data SheetNo.

CONTINUATION SHEET C6mp/ System Procedure No.

Subj ect Page 28 of 31 Recordable Examination Indication COMMENTS / REASON FOR Weld / Area OBSTRUCTIONS YES NO GEOM Incompleted Scan (s) e i

.h l

l l

l l

l 1

l I

Additional Sheets?(Check Box) Examinersl.

Date Level 2.

Date Level Continuation Reviewer Date Supplements mucteaa rusaov stavces inc FIGURE 8 i

y

~

g ~

+-

w w~

w

FIGURE 9 PROCEDURE NO.

80A0481 INDICATION REPOttT SiiEET NUCLEAR ENERGY SERVICES, INC'.

Project No.

Site L location Date: (Day /Mo/Yr) g 29 Itcin identification W location Page og 31 g

Examiner: TC-1 A Level gle 0

45 L 45 II Attached Cal. Data Shoet

/

Examiner: TC-1 A Level Scanning dB Diameter (nom.)

MP Metal Path Wmax Distance from Ch to S.U. at maximum response.

7 RBR Remaining Back Itellection

1. 3-'

T

~

W Distance from weld Q at 50% of DAC (fwd) lt L

Distance from Datum 0 1

W Distance from weld $ at 50% of Wmax. (backward) t, y' 2

FWD BACKWARD j j

-i Ind.

L i

W MAX

$0%

DAC 50%

DAC 1

L 2

RBR S. U.

l

~

l ]

W MP W

MP W

MP 50 %

max 50%

amp Loc.

2 ftEMARKS No.

DAC DAC DAC DRAW FULL SCALE PLOT llERE:

PROCEDU E NO.

80A0481

SUBJECT:

PIPING WELDS PAGE

~ 30 0F M TABLE I WELD IDENTIFICATION NUCLEAR COMPONENTS Description Reference Block Reference Figures Notes

,Recirc. Suction Pipe 28-XXI-SS 1, 3, 5 See Program Plan for list RHR to R,ecirc. Safe-end 24-080-55 1, 5 of welds.

Recirc. Discharge Header 22-080-SS 1, 3, 5 RHR to Recire. Safe-end 20-80S-SS 1, 5 Recire. Discharge Pipe to Nozzles 12-XXI-SS 1, 3, 4 i

Core Spray Pipe Near Nozzles 10-80S-SS 1, 4 Recirc. Decon. Connection 04-80S-SS 1, 4 Main Steam, RHR-Return to Recirc.

24-080-CS 2, 3 RHR - Supply From Recirc.

20-080-CS 2, 5 Feedwater 20-100-CS 2, 5 l

Feedwater 20-120-CS 2, 5 l

l l

l Feedwater 18-100-CS 2, 5 l

l Feedwater 18-160-CS 2, 5 HPCI return to Feedwater 14-100-CS

'2, 4

j i

Feedwater 12-100-CS 2, 4-HPCI - Supply from Main Steam 10-080-CS 2, 4 3

i Main Steam - Lines to Relief j

Valves 06-160-CS 2, 4 l

l RHR - Head Spray, RWCU - Supply from RecIrc.

06-080-CS 2, 4 l

.r.

i (con't).

Q f

E NUCLEAR ENERGY SERVICES, INC.

l 7

PROCEDURE NO. 80A0481

SUBJECT:

PIPING WELDS PAGE' 31 0F 31 TABLE I WELD IDENTIFICATION NUCLEAR COMPONENTS Description Reference Block Reference Figs es Notes (con't)

RHR, RWCU, Recirc., RCIC 04-080-CS 2, 4 See Program Plan for list RCIC - Supply From Main Steam 03-080-CS 2, 4 of welds.

CRD Return 03-160-CS 2, 4 04-160-CS RWCU - Reactor Drain 2.5-080-CS 2, 4 l

l NUCLEAR ENERGY SERVICES, INC.

.