ML071240373
| ML071240373 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 05/04/2007 |
| From: | Exelon Generation Co, Exelon Nuclear |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML071240373 (1) | |
Text
Indications for B2R1 3 Pressurizer Weld Overlays PORV PN-03 O~47~
- O81~
9.2 Laminar NOZZLE ID THICKNESS RANGE OF OVERLAY OVERLAY WIDTH INDICATION NUMBER INDICATION TYPE UT MEASURED DEPTH FROM OUTSIDE SURFACE TO CENTER OF FLAW IND.
UT MEASURED LENGTH OF FLAW INDICATION MEASURED ON OD SURFACE UT MEASURED POSITION OF FLAW INDICATION FROM REFERENCE MARK (As Marked on Sketches)
UT MEASURED CIRCUMF.
POSITION OF FLAW INDICATiON IN INCHES FROM 0 REFERENCE POINT (SeeNote 2)
UT MEASURED HEIGHTOF FLAW IND.
AVERAGE THfCKNESS OF OVERLAY AT LOCATION OF FLAW INDICATION (See Note 4)
UT MEASURED WIDTH OF LAMINAR FLAW IND.
INDICATION DISPOSITION FLAW INDICATION INCLUDED IN REPAIR EXCAVATION AREA REMARKS Laminar Dimensions per Table IWB~3514-3 (Square in.)
<10% Reduction In Coverage Per Appendis 0 Q-4100(c)(2)
Flaw Propagation in outer 25% of underlying weld!
base metal Per Appendis 0, 0-4200(b)
IWB-3514-2 Preservice Esaminabon IWB-3514-2 Inservice Examination for assumed flaws IWB-3640 Eval. for assumed flaw Per Appendis 0 0-4100(c)(3)
SURGE PN~O1 0.70
- 1.12~
14.5 No Indications No Indications No indications No Indications No Indications No Indications No Indications No Indications No Indications N/A N/A No Indications found in outer 25%
Acceptable N/A N/A No repair required. None.
SPRAY PN-02 0.29 O,91~
8.95 No Indications No Indications No Indications No Indications No Indications No Indications No Indications No Indications No Indications N/A N/A No Indications found in outer 25%
Acceptable N/A N/A No repair required.
None.
1,11
-4,10 N/A 0./0 Page 1 of 1 0.45 Acceptable:
1.6O~vs.7.50 allowable Acceptable:
DM Weld No RiG 55 Weld Circ.: 2.30% Max.
Axial: 2.04% Max.
NO Incbcstions tound in outer 25%
Acceptable B
PN-05 SAFETY C
PN-06 SAFETY 0.28
- 0.95~
10,4 I
Laminar 0.27 3.40 3 05
-4.10 N/A 0.76 0.45 Acceptable:
Acceptable:
NoIndications found in Acceptable A
1.40 vs. 7,50 DM Weld outer25%
PN-04 allowable Circ.: 0.54% Max.
Axial: 0.77% Max, 55 Weld No RiG Acceptable 2
Laminar 0.25 1.05 4.85
-5.90 N/A 0.71 0.35 Acceptable:
0.30 vs. 7.50~
allowable 0.42
- 0.90 10.7 0.45 - 0.90 10.2 Laminar 0.27 2.50 4,25 No repair required.
Acceptable:
Act. 2a/t= 0.57 Allowable 2a/t per C-5410-1
= 0.75 6.00 Laminar N/A Assumed flaw below laminar indication acceptable per IWB-3640 evaluation.
0.79
~3.50 0.50 11.00 4.50 Acceptable:
1.20 vs. 7.50 allowable Acceptable:
No repair required. Assumed flaw below laminar Act. 2a/t= 0.52 indication acceptable per IWB-3640 evaluation.
Allowable 2a/t per G-5410-1
= 0.75 N/A 0./4 Acceptable:
DM Weld Girc.: 1.69% Max, Axial:
(
4 Mow ti una~~
11 A
At)
I 0
0 Acceptable Girc SEAct vs 111 Allowable Acceptable Axial 8 1 Act vs ii 5 Allowable No Indications found in outer 25%
0.45 Acceptable Acceptable:
1.30~vs. 7.50 allowable Acceptable:
No repair required. Assumed flaw below laminar Act. 2aIt= 0.27 indication acceptable per IWB-3640 evaluation Allowable 2aIt per 0-5410-1
= 0.75 Acceptable:
DM Weld Girc.: 5.68% Max.
Axial: 6.53% Max.
Axial: 1.52% Max, No Indications found in outer 25%
No repair required.
Acceptable:
Act. 2a/t= 0.40 Allowable 2a/t per 0-5410-1
= 0.75 Assumed flaw below laminar ndication acceptable per WE-3640 evaluation.
Acceptable 2
Laminar 0.18 4.9 (Gombined) 5.30 9.00 N/A 0.69 1.10 (Gombined)
Acceptable:
3.80 vs. 7.50~
allowable (Gombined) 4.55 6.20 N/A 0.74 3
Laminar 0.47 4
Laminar 0.30 3.25 (Gombined) 4.30
-6.00 N/A 0.76 1.50 (Gombined)
Acceptable:
3.40 vs. 7.50 allowable (Gombined) 3.30
-6.50 N/A 0.88 6
Laminar 0.18 N/A Norepair required. None.
5 No repair required.
Acceptable:
Act. 2a/t= 0.38 Allowable 2a/t per G-5410-1
= 0.75 Laminar 0.47 Acceptable Acceptable Acceptable Acceptable Flaw 2combined with Flaw 3.
Assumed flaw below laminar ndication acceptable per IWB-3640 evaluation.
0.70 8.45
-3.40 N/A S
I U
w8t~e 1
i:
-o
~
tAoacceptabw A
0 Acceptable Girc 57Ac1 vs 109 Allowable Acceptable Axial S 7 Act vs 11 1 Allowable Acceptable:
No repair required. Flaw3 combined w8f1 Flaw 2.
Act. 2aJt= 0.35 Assumed flaw below laminar ndication acceptable per WE-Allowable 2w/f per 3640 evaluation.
0-5410- 1
= 0.75 0.79 0.45 Acceptable:
0.30~vs. 7.50 allowable Acceptable:
No repair required. Flaw 4 combined with Raw 6.
Act. 2a/t= 0.46 Assumed flaw below laminar indication acceptable per IWB-Allowable 2a/t per 3640 evaluation.
G-5410-1
= 0.75 N/A Acceptable No repair required. Flaw 6 covnbined with Flaw 4.
IOTES 1
2 3
4 5
All flaw indications are in the circumferential direction.
Zero reference point for circumferential dimensions are top dead center of weld for Relief, Safety. The surge and The Nominal diameters of the components are as follows: Safeties/PORV: 6.0, Spray 40, Surge:
1 40.
Measured from the weld overlay OD surface perpendicular to the pipe axis to the weld overlay/base metal interface Dimensions for the thickness range of overlay and overlay width columns determined by measurements taken spray was the adjacent elbow extrados. Minus (-) dimensions are counter clockwise direction.
ABBREVIATIONS using the nearest cross-section profile.
from overlay weld contours.
R1C Reduction in Coverage DM -Nozzle to Safe-End Weld 55-Safe End to Pipe Weld Circ. - Circumferential N/A Acceptable:
Circ. : 9.5 Act. vs. 11.4 Allowable Acceptable:
Axial: 4.4 Act. vs. 11.2 Allowable No repair required. None.