ML16293A326
| ML16293A326 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 10/05/2016 |
| From: | Tennessee Valley Authority |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML16293A318 | List:
|
| References | |
| CNL-16-135 R-P0107 | |
| Download: ML16293A326 (3) | |
Text
WAll llH~CKNESS PROF~lE SHElET lllEPOIRT NO:
j);)ROJECT: ___
W_B_IJ ________ _
UNJIT: ____
='d-::;........ _______ ~-
w~lD~o:~~~a~G~w_-~o~(~~~~~~
svsrEM: ~-_..;...g-=c_====s==~---~--
W0id Cnterllnlll Rcord Thlcl<lMU l\\llHUfliffll'l!!il Are inolle@!~d, including W!c:I Width, IEdg*'i"o*Edg At 0° f3i-~--::U"-=--<ll>fJ>--==2.!!i"~--=0j Poii!tlon oo 9 0°
~ eo*
270° Dl rn
[!J
- ..o"' 1.15 ~.I I
~.o**
[3]
')..()" ~..
. o /.9?',. 'I(
[i]
'* 7t:' ')..o" ~.(" ~.o' CROWN HEBGHT: ---~f_L_lA_S_f.I_~----=
J..o**
CRQWN WIDTH: _____
00 EXAMlNIEA:J~ AJIS3E'N ~*...,..._
LEVEL:
IL.
(/.
DATE:
/0 ~ 08-0S 5
Flow~
t.t..
DIAMETER:=---=------~----
1.j 0
WELD tENG'i~:--------------
ANU:
OATE*
PAGE l-108*999*~
.TVA PROJECT:--1!---a<J &~N ___
._ SYS'fEM:_~~G""'""'.S=-----
REPORT Office of N1llldear Power UNIT:
WELD NO:
(}.GvJ - 0 l LEVEL: -n::
DATE: J?.I II/OB PAGE (o
OF_____,,~~
~.Polo/
NPG CALCULATION OF ASME CODE N-GP-31 Nondestructive COVERAGE FOR SECTION XI, APPENDIX Rev.0002 Examination VIII ULTRASONIC EXAMINATIONS Page 16 of 24 Procedure (Page 1 of 1)
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
\\J7 GJ IC c:~
I I
I lt:J
~*~//
I I
I I
u~fJ ~ {LLJ '0\\
c;= I. 3'
H.-. 's
L~ 4c.;,
Item Description Value REQUIRED EXAMINATION VOLUME 1
Required examination volume in sq in. (width x height) for single scan stroke
.SS'1 2
Number of scan directions (normally 4; i.e. upst,dnst, cw, & ccw))
L/
3 Total scan volume in sq inches (Item 1 *Item 2)
- 3. S-4 4
Total length of weld l.f O 5
Total required examination volume in cubic inches (Item 3 *Item 4)
It.ft. 'i '1 OBTAINED EXAMINATION VOLUME 6
Examination volume achieved (sq in for single scan stroke) in 1 axial scanning f;r 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
- l. S". ';2 8
Examination volume achieved (sq in for single scan stroke) in 1 circumferential scanning direction (i.e. cw) multiplied by the length of weld examined
- 11. {,
n Examination volume achieved (sq in for single scan stroke) in 1 circumferential
- I 11,'
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 bl/. '-I 11 Examination volume percentage [(Item 10 I item 5) X 100]
1 : '1S°S} -:. '1',,
0 INFORP~1ATION ONLY