NL-16-135, Report No. R-P0106, Wall Thickness Profile Sheet, (Sketch)

Report No. R-P0106, Wall Thickness Profile Sheet, (Sketch)

ML16293A325
Person / Time
Site:	Watts Bar
Issue date:	10/05/2016
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
Shared Package
ML16293A318	List: CNL-16-135, Report No. R-P3450, Wall Thickness Profile Sheet. (Sketch) ML16293A323 ML16293A324 ML16293A325 ML16293A326 ML16293A327 ML16293A328 ML16293A329 ML16293A330 ML16293A331 ML16293A332 ML16293A333 ML16293A334 ML16293A336 ML16293A369 ML16293A370 ML16293A371 ML16293A372 ML16293A373 ML16293A374 ML16293A375 ML16293A376 ML16293A377 ML16293A378 ML16293A379 ML16293A380 ML16293A381 ML16293A382 ML16293A383 ML16293A384 ML16293A385 ML16293A386 ML16293A387 ML16293A388 ML16293A395 ML16293A396 ML16293A397 ML16293A399 ML16293A400 ML16293A401 ML16293A402 ML16293A403 ML16293A404 ML16293A405 ML16293A406 ML16293A407 ML16293A408 ML16293A409 ML16293A410 ML16293A411 ... further results
References
CNL-16-135 R-P0106
Download: ML16293A325 (3)

Text

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OATE: DATE: LEVEL: ':III, /2* 0'1-0 8 PAGE

.TVA PROJECT: W/3N SYSTEM: /?CS REPORT Office of Nuclear Power UNIT: ;1. WELD NO: RC.5-3-(,;, R-Po lOlo -------- -LEVEL: .JL DATE: 1:i.-"'1-tJ8 PAGE (p

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• NPG Nondestructive Examination Procedure CALCULATION OF ASME CODE COVERAGE FOR SECTION XI, APPENDIX VIII ULTRASONIC EXAMINATIONS Attachment 4 (Page 1 of 1) N-GP-31 Rev.0002 Page 16of24 AUSTENITIC PIPING WELDS SINGLE SIDE ACCESS -SUPPLEMENT 2 Required and obtained examination volume coverage work sheet Below is a typical example of examination coverage plots although are not to be considered inclusive of all situations.

Typical example of a single sided access examination of an austenitic piping weld, examination credit can not be taken beyond the weld centerline when the beam is directed through the weld material.

Although examinations are required to be performed with the ultrasonic beam directed through the weld material, however they can not be considered totally effective or creditable.

Note: Typically a one-sided austenitic weld examination with no circumferential restrictions would be indicated as 75% examination coverage or 50% if circumferential scans were limited to one side. I I I G I I 2J I I I I /A)=-,f)C 5-3-(.. tu= /,e:lS' 11=. 7 L =so Item Description Value REQUIRED EXAMINATION VOLUME 1 Required examination volume in sq in. (width x height) for single scan stroke 2 Number of scan directions (normally 4; i.e. upst,dnst, cw, & ccw)) 4 3 Total scan volume in sq inches (Item 1

• Item 2) 3,5 4 Total length of weld so 5 Total required examination volume in cubic inches (Item 3 *Item 4) t 75" OBTAINED EXAMINATION VOLUME 6 Examination volume achieved (sq in for single scan stroke) in 1 axial scanning direction (i.e. upst) multiplied by the length of weld examined 7 Examination volume achieved (sq in for single scan stroke) in 1 axial scanning direction (i.e. dnst) multiplied by the length of weld examined 8 Examination volume achieved (sq in for single scan stroke) in 1 circumferential A I. scanning direction (i.e. cw) multiplied by the length of weld examined n Examination volume achieved (sq in for singie scan stroke) in 1 circumferentiai 1::J scanning direction (i.e. ccw) multiplied by the length of weld examined 10 Determine the achieved examination volume by adding Items 6, 7, 8. and 9 <;J?.5 11 Examination volume percentage

[(Item 10 I item 5) X 100] (, '>O )-: '5lJ /

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