4 PROCEDURE NO. 80A0467'

SUBJECT: CLOSURE HEAD WELDSPAGE 1 0F 26

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ULTRASONIC EXAMINATION PROCEDURES

FOR CLOSURE HEAD AND FLANGE WELDS

LONG ISLAND LIGHTING COMPANY

SHOREHAM NUCLEAR POWER STATION

UNIT I

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Prep'd by

) Data

#I-I2-773Proj ec t)ig r. c. Date

HES % ~ '' ' ' -'* '''REV. ti0. DATE Mgr. ISt Level |II Date S

Y0 8/4/77 NES ? ' 2 '' 'A'- *'151 Progra it' f- Level 11I Date i

j d ei M 4 7-zs-n' ' ''h'!7 ne,QA Mgr. /2 12/20/77 Date

3 7/20/78 LiLCO k Y S'' "' I' |' 7 |'I Tbau

4 10/30/73 .-

Date

79032900|] M;? NUCLEAR ENEAGY SERVIC25. If 4C.,

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'. PROCEDURE fl0. 80A0467~'

SUBJECT: CLOSURE HEAD WELDSPAGE 2A 0F 26*

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Rev. Prep'dNo. Date Description Reason by' App'd by

1 10-15 11.3.1: Delete reference LILCO comments of 10-14-77 NES LILC0to"S&W ESDCR HARTFORD comments of 10-10-77 -

A5210.40" Al @611.3.2: Change "S&W" to

"LILC0"

p.22, 23, 24: Add sign.line for" reviewer"

fffgN2 12-77 Pg. 22: delete"T/8"

y g "X S3 7-78 2.1 Clarify Code Useage LILCO and :mC co r.ents8.3 Change to " Full Vee" i;pp8Figures-Change to " FullVee"

h(E *M >4 10-75 8.3(1) Change to incorporate To meet Full Vee examination re- *0.f. * .' N.#Full Vee Calibration. quirements.

S.3(2) Changed para. to read".. response from the3/4T hole."

Revised procedure to reflectuse of full Vee examinationas well as 1/2 Vee exam-ination. (Sectioa 3.3 and 8.4)

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Mjh HUCLEAR ENERGY SER'/ ICES. INC.

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Procedure No. 80A0467Subject: CLOSURE HEAD WELDSPage 12 of 26

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

(2) Resposition search unit at each respective test Hole and observemaximum signal response amplitudes, and horizontal screen positions.

(3) See Section 7.5 for signal response requirements during calibrationcheck.

8.3 Angle Beam Calibration (Second Half of Vee Path)

Angle beam sweep calibration and Distance-Amplitude Correction shouldbe performed as follows and as shown in Figure 4:

(1) Adjust the instrument sweep controls so that the signal response gfrom the 1/4T and 13/4T holes occur at the first (1st) andseventh (7th) horizontal screen positions as shown in Figure4. To verify sweep calibration, ensure that response fromsquare notches appear near the fourth (4th) and eighth (8th) d dhorizontal positions respectively.

(2) Position search unit to obtain* maximum response from the3/4T hole. Adjust sensitivity control to provide a signal ampli- Atude of 30% of FSH and mark location and amplitude on CRT.

(3) Without changing sensitivity, position search unit respectivelyon the remaining angle beam calibration holes and mark signalamplitudes and locations on CRT.

(4) Position search unit for maximum response from the farsurface notch and "X" mark the screen and data sheet toindicate amplitudes.

(5) If the instrument is equipped with an electronic Distance-Amplitude Corr 2ctiondevice, the primary reference responseshall be equalized at 80% of FSH over the distance rangeto be employed in the examination.

(6) Plot a Distance-Amplitude Correction (DAC) curve by connectingthe locations (marked on the CRT) with a continuous lineextended to cover the full examination range as shown inFigure 4.

.O_[*$ NUCLEAR ENERGY SErlVICES, INC.

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Procedure No.. S E')'672Subject: CLOSURE HEAD WELDSPage 13 of _ 26.

(7) This is the primary reference sensitivity. Record all sen-sitivity control settings on the appropriate CalibrationData Sheet.

(8) Report all data and instrument settings on the CalibrationData Sheets.

3.4 Angle Beam Calibration (First Half of Vee Path)

Angle beam sweep calibration and distance-amplitude correction should gbe performed as follows and as shown in Figure 4:

(1) Adjust the instrument sweep controls so that the signal re-sponse from the 1/4T and 3/4T holes occur at the first (1st)and third (3rd) horizontal screen positions as shown in Figure4. To verify sweep calibration, ensure that response fromsquare notch appears near the fourth (4th) horizontal positions.

(2) Position search unit to obtain maximum response from thehole which gives the highest amplitude signal. Adjust sensitivitycontrol to provide a signal amplitude of 80?6 of FSH and marklocation and amplitude on CRT.

(3) Without changing sensitivity, position search unit respectivelyon the remaining angle beam calibration holes and mark signalamplitudes and locations on CRT.

(4) Position search unit for maximum response from the far surfacenotch and "X" mark the screen and data sheet to indicateamplitude.

(5) If the instrument is equipped with an electronic distance-amplitude correction device, the primary reference responseshall be equalized at 30o6 of FSH over the distance rangeto be employed in the examination.

(6) Plot a Distance-Amplitude Correction (DAC) curve by connectingthe locations (marked on the CRT) with a continuous lineextended to cover the full examination range as shown inFigure 4.

NUCLEAR ENERGY SERVICES. INC.

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P vCEDURE NO. 80A0467SUBJECT: CLOSURE HEAD WELDSPAGE 1 0F 2 c;.

ULTRASONIC EXAMINATION PROCEDURES

FOR CLOSURE HEAD AND FLANGE WELDS. .

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LONG ISLAND LIGHTING COMPANY ..

SHOREHAM NUCLEAR POWER STATION

UNIT I

%Prep'd by J_h Date 9

'

~I2-7[f1ES /__ Projectpgr. _ . _ _ - Date^

/ * s .IlE S ' ~ ' ' ! ' D * '/ f~b' ''i'l- --. NO. DATE

Mgr. ISI Level til Date 5bN( 0 8/4/77 tlES ^ P-2 7- D.

,ISI Progrc. Mp. Level 111 Date d,

HES $ f-23-772 12/20/77 QA Mgr. ,[ Date

,

3 7'/20/78 LILCO M.X.I d ~ w 6 /n / 7 7,

Date

4 10/30/78- :;-

Date

O

; 'PJCLEAR E;1EAGy SEnvic25, it;C.,

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'0URE NO. 80A0467( PR{dCT:#

SUba CLOSURE HEAD WELDSPAGE 2A 0F 25

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Prep'd .Rev.No. Date Description

- Reason by' App'd by

1 10-15 11.3.1: Delete reference LILCO co ments of 10-14-77 NES LILCOto"SSW E6DCR HARTFORD comments of. 10-10-77 .A5210.4D" Al ,

11.3.2: Change "SSV" to"LILC0" ,

p.22, 23, 24: Add sign.line for" reviewer"

N N N_2 12-77 Pg. 22: delete"T/8" O tistu

g g m3 7-78 2.1 Clarify Code Useage LILCO cnd NRC cc=ents8.3 Change to " Full Vee" gj.33Figures-Chan;;c to " FullVee"

Y *M >4 10-75 8.3(1) Change to incorporate To meet Full Vee examination re- t.f. k ..''/40Full Vee Calibration. quirements.

3.3(2) Changed para. to read".. response from the3/4T hole."

Revised p~rocedure to reflectuse of full Vee examinationas well as 1/2 Vee exam-ination. (Section S.3 and 3.4)

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Ofi.

b; HUCLC.AR ENERGY SIRVICES, INC.

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4. ~. ' . { ( -Procedure No. 80A0467Subject: CLOSURE HEAD WELDS I

. Page 12 of 25

(1) Adjust the sensitivity control settings to those recorded for| the calibrated reference sensitivity. See Section 8.2(2).i

(2) Resposition search unit at each respective test Hole and observemaximum signal response amplitudes, and horizontal screen positions. -

(3) See Section 7.5 for signal response requirements during calibrationcheck.

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8.3 Angle Beam Calibration (Second Half of Vee Path)~

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! Angle beam sweep calibration and Distance-Amplitude Correction shouldj be performed as follows and as shown in Figure 4:; .

| (1) Adjust the instrument sweep controls so that the signal response g; from the 1/4T and 13/4T holes occur at the first (1st) and

seventh (7th) horizontal screen positions as shown in Figure'

4. To verify sweep calibration, ensure that response fromi square notches appear near the fourth (4th) and eighth (8th) d, d

horizontal positions respectively.j

j (2) Position search unit to obtain maximum response from the3/4T hole. Adjust sensitivity control to provide a signal ampli- &itude of 80% of FSH and mark location and amplitude on CRT.

(3) Without changing sensitivity, position search unit respectivelyon the remaining angle beam calibration holes and mark signalamplitudes and locations on CRT.

! (4) Position search unit for maximum response from the far' surf ace notch and "X" mark the screen and data sheet to

indicate amplitudes.I

! (5) If the instnment is equipped with an electronic Distance- ,? Amplitude Correctiondevice, the primary reference response

'

shall be equalized at 30% of FSH over the distance rangeito be employed in the examination.

? (6) Plot a Distance-Amplitude Correction (DAC) curve by connecting| the locations (marked on the CRT) with a continuous line

extended to cover the full examination range as shown in,Figure 4. -

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1

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,.- ---[ HUcLEAR ENERGY SERVICES. INC. -

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Procedure No. 80A047Subject: CLOSURE HEAD WELDS |Page an of x i

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(7) This is the primary reference sensitivity. Record all sen- ;sitivity control settings on the appropriate CalibrationData Sheet.

(8) Report all data and instrument settings on the Calibration.

Data Sheets. '.

8.4 Angle Beam Calibration (First Half of Vee Path) -.

Angle beam sweep calibration and distance-amplitude correction should gbe performed as follows and us shown in Figure 4:

(1) Adjust the instrument sweep controls so that the signal re- isponse from the 1/4T and 3/4T holes occur at the first (1st)and third (3rd) horizontal screen positions as shown in Figure4. To verify sweep calibration, ensure that response fromsquare notch appears near the fourth (4th) hMzontal positions.

(2) Position search unit to obtain maximum response from the ihole which gives the highest amplitude signal. Adjust sensitivity Icontrol to provide a signal amplitude of 80% of FSH and mark Ilocation and amplitude on CRT.

(3) Without changing sensitivity, position search unit respectivelyon the remaining angle beam calibration holes and mark signal 'amplitudes and locations on CRT.

(4) Position search unit for maximum response from the far surface{

notch and "X" mark the screen and data sheet to indicate famplitude.

(5) If the instrument is equipped with an electronic distance-amplitude correction device, the primary reference responseshall be equalized at 30?5 of FSH over the distance rangeto be employed in the examination.

(6) Plot a Distance-Amplitude Correction (DAC) curve by connectingthe locations (marked on the CRT) with a continuous line

[extended to cover the full examination range as shown inFigure 4. - -

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HUCLEAR ENERGY SERVICES. INC.

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PROCEDURE NO. 80A0467SUBJECT: CLOSURE HEAD WELDS

-PAGE 13 0F 25

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Gy (7) This is the primary reference sensitivity. Record"

Y all sensitivity control settings on the appropriateyCalibration Data Sheet.

(8) Re t all data and instrument settings on the Celibra-tion a Sheets.

8.4 Angle Beam Calibration eck_.

Angle beam calibration check a required by Section 7.4.3 shallbe performed as follows:

(1) Adjust the sensitivity control attings to thoserecorded for the calibrated refere. e sensi tivi ty.

See Section 8.3 (2) .

(2) Reposition search unit at each respective te holeand observe signal response amplitudes and horiz talscreen positions.

(3) See Section 7.5 for signal response requirements. ,during calibration check.(.

90 EXAMINATION PROCEDURES

91 Examination of Base tiaterial for Lamination

9.1.1 Straight beam examinations to detect laminar reflectorswhich might affect the interpretation of angle beamresults shall be perforned at a sensitivity levelgiving an initial back reflection signal amplitudeof 80% FSH.

9.1.2 A rectilinear scan pattern shall be used.

9.1.3 For the location and the numbers of the welds refer tothe Program Plan. Examination shall not be consideredcomplete until all recordable indications have beenevaluated.

9.2 Straight and Angle Beam Examination of URY

9.2.1 Straight and angle beam examination of weld and requiredvolume shall be performed at a scanning sensitivitylevel at least 2X (6dB) greater than the calibratedreference sensitivity level.-

Oj'_ MJCLEA:3 ENIMV SE*v.CES : .C.

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PROCEDURE NO. 80A0467SUBJECT: CLOSURE HEAD VELDS*

PAGE 17 0F 25.

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13"= , E.

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2i" ; _11" _ 2i." ,r- _|

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) .L45 J, 4-1/16"4.L 5 0 uRV // 0 WRV *0* 45 = nominal..

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LEGEtlD

.}-. Perpendicular to Veld

== Parallel to Veld* O Base Material

WRV Weld E. Required Volume

FIGURE 1 - ULTRASONIC EXAM 1NAT10tl 0F CLOSURE HEAD C!RCUMFERENTI AL.AND MERIDIONAL DOME WELDS.

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NUCLE /4.3 ENERGY SERVICES, INC.--

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PROCEDURE NO: 80A0467*SUBJECT: CLOSURE HEAD VELDSPAGE 18 0F 25

Sgal

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LEGEND-

00*_}_ Perpendicular Scan,

= Parallei Scan- .

* O Base Material'.

45 .L {3 gWRV We1d r, Required Volume

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PROCEDURE fl0. _80A0467, ,

SUBJECT: CLOSURE HEAD UELOSPAGE 0F '_3n x

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Examination Surface-

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Calibration Holes(6)

Standard Block Hole Hole I;otcht;o. Thick. hT iT 3/4T Dia. Depth Depth

StPS-4 4-3/32" l.02" 2.04" 3.06" 0.25" 3.00" 0.082"(2%T)

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FIGURE 3 - ULTP.ASONIC CALIBRATION STANDARD StiPS-4 FOR CLOSURE HEAD WELDS..-.

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Procedure No. 80A0067,,

Subject: Closure Head Welds' *

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. Page 20 of 25,

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