ML20121A119
| ML20121A119 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 04/30/2020 |
| From: | Mark D. Sartain Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 20-056 | |
| Download: ML20121A119 (100) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 April 30, 2020 U.S. Nuclear Regulatory Commission Serial No.: 20-056 Attention: Document Control Desk NRA/ENC: RO Washington, DC 20555 Docket No.: 50-338 License No.: NPF-4 VIRGINIA ELECTRIC AND POWER COMPANY {DOMINION ENERGY VIRGINIA)
NORTH ANNA POWER STATION UNIT 1 ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUEST N1-14-LMT-003, FOURTH INTERVAL THIRD PERIOD LIMITED EXAMINATIONS Pursuant to 10 CFR 50.55a(g)(S)(iii), Virginia Electric and Power Company (Dominion Energy Virginia) requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, "Rules for lnservice Inspection of Nuclear Power Plant Components," requirement for "essentially 100 percent" volumetric examination coverage of the North Anna Power Station Unit 1 (NAPS1) pressurizer nozzle-to-vessel welds and certain risk-informed piping welds performed during inservice inspection (ISi) examinations in the third period of the fourth 10-year ISi interval.
Examinations of these welds were performed to meet the requirements of the 2004 Edition of ASME Code Section XI with no Addenda and the Risk-Informed/Safety-Based lnservice Inspection (RI-ISi) Program Plan based on Code Case N-716, "Alternative Piping Classification and Examination Requirements. Limited access and configuration of these components prevents full volumetric examination coverage of these welds. The attached Relief Request N1-14-LMT-003, "Fourth Interval Third Period Limited Examinations,"
provides the basis for this request and supports the determination that the applicable ASME Code requirements are impractical.
In accordance with 10 CFR 50.55a(g)(5)(iii), the requested relief must be submitted to the Nuclear Regulatory Commission (NRC) no later than 12 months after the expiration of the 120-month inspection interval for which relief is sought. The NAPS1 fourth interval ended April 30, 2019.
Serial No.: 20-056 Docket No.: 50-338 Page 2 of 3 If you have any questions or require additional information, please contact Erica Combs at (804)-273-3386.
Sincerely, Mark D. Sartain Vice President - Nuclear Engineering and Fleet Support
Attachment:
Relief Request N1-14-LMT-003, "Fourth Interval Third Period Limited Examinations" Commitments made in this letter: None
Serial No.: 20-056 Docket No.: 50-338 Page 3 of 3 cc: Regional Administrator, Region II (w/o attachments)
U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, Georgia 30303-1257 G. E. Miller NRC Senior Project Manager - North Anna Power Station U. S. Nuclear Regulatory Commission Mail Stop 09 E-3 One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 Mr. Marcus Harris (w/o attachments)
Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.
Suite 300 Glen Allen, Virginia 23060 NRC Senior Resident Inspector (w/o attachments)
North Anna Power Station
Serial No.: 20-056 ATTACHMENT Relief Request N1-14-LMT-003, NAPS1 Fourth Interval Third Period Limited Examinations VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION ENERGY VIRGINIA)
NORTH ANNA POWER STATION UNIT 1
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams Page 2 of 97
[THIS PAGE INTENTIONALLY LEFT BLANK]
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rc1 Period Limited Exams Page 3 of 97 CONTENTS 1.0 ASME CODE COMPONENT($) AFFECTED ......................................................... 5 2.0 APPLICABLE CODE EDITION AND ADDENDA ...................................................5 3.0 APPLICABLE CODE REQUIREMENT ...................................................................5 A1 Pressurizer Nozzle-to-Vessel Welds ....................................................................8 4.A 1 IMPRACTICALITY OF COMPLIANCE 5.A 1 BURDEN CAUSED BY COMPLIANCE 6.A1 PROPOSED ALTERNATIVE AND BASIS FOR USE B1 Nozzle-to-Shell Welds ...........................................................................................16 4.B1 IMPRACTICALITY OF COMPLIANCE 5.B1 BURDEN CAUSED BY COMPLIANCE 6.B1 PROPOSED ALTERNATIVE AND BASIS FOR USE R 1 Elements Subject to Thermal Fatigue .................................................................29 4.R1 IMPRACTICALITY OF COMPLIANCE 5.R1 BURDEN CAUSED BY COMPLIANCE 6.R1 PROPOSED ALTERNATIVE AND BASIS FOR USE R2 Elements Subject to lntergranular or Transgranular Stress Corrosion Cracking .................................................................................................................47 4.R2 IMPRACTICALITY OF COMPLIANCE 5.R2 BURDEN CAUSED BY COMPLIANCE 6.R2 PROPOSED ALTERNATIVE AND BASIS FOR USE R3 Elements Not Subject to a Degradation Mechanism ..........................................55 4.R3 IMPRACTICALITY OF COMPLIANCE 5.R3 BURDEN CAUSED BY COMPLIANCE 6.R3 PROPOSED ALTERNATIVE AND BASIS FOR USE 7 .0 DURATION OF PROPOSED ALTERNATIVE ........................................................96 8.0 PRECEDENTS ........................................................................................................96
9.0 REFERENCES
........................................................................................................96
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 4 of 97 ENCLOSURES Enclosure A 1-1, 11715-WMKS-RC-E-2 / 1-RC-E-2 / 13 Data Report ........................... 11 1-1, 11715-WMKS-SI-TK-2 / 1-SI-TK-2 I 3 Data Report ............................. 17 1-2, 11715-WMKS-SI-TK-2 / 1-SI-TK-2 I 4 Data Report ............................. 23 Enclosure R1-1, 11715-WMKS-0103N / 6-RC-17 I 21 Data Report .............................. 33 Enclosure R1-2, 11715-WMKS-0103W / 6-RC-20 / 41 Data Report .............................. 37-Enclosure R1-3, 11715-WMKS-0103W / 6-RC-20 / 42 Data Report ............................. .42 Enclosure R2-1, 11715-WMKS-0103Y I 6-Sl-133 I 12 Data Report ............................. .49 Enclosure R3-1, 11715-WMKS-0109B / 8-RC-12 I 1 Data Report ................................. 61 Enclosure R3-2, 11715-WMKS-0109G-1 / 27 1/2-RC-9 I 33 Data Report ..................... 65 Enclosure R3-3, 11715-WMKS-0109G-2 / 29-RC-7 / SW-31 Data Report .................... 67 Enclosure R3-4, 11715-WMKS-0103L / 6-Sl-131 / SW-7 Data Report .......................... 71 Enclosure R3-5, 11715-WMKS-0113C-3 / 12-Sl-69 / SW-8 Data Report ...................... 77 Enclosure R3-6, 11715-WMKS-0103AD I 6-RC-21 / 18 Data Report ............................ 82 Enclosure R3-7, 11715-WMKS-0109G-1 / 29-RC-7 / 27 Data Report ........................... 87 Enclosure R3-8, 11715-WMKS-0113A-1 / 14-RH-1 / 4 Data Report ............................. 90 TABLES Table 1. Repetitive/Duplicative Requests Requested in Accordance with 10 CFR 50.55a(g)(5)(iii), lnservice Inspection Impracticality ..................... 7
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 5 of 97 RELIEF REQUEST N1-14-LMT-003 NAPS1 FOURTH INTERVAL THIRD PERIOD LIMITED EXAMS Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii)
-- Notification of impractical ISi Code requirements --
1.0 AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) CODE COMPONENT(S) AFFECTED Refer to Table 1, Columns 1 and 2.
2.0 APPLICABLE CODE EDITION AND ADDENDA The applicable code for the North Anna Power Station Unit 1 (NAPS1) fourth 10-year inservice inspection (ISi) interval and ISi Program is the ASME Boiler and Pressure Vessel Code Section XI, 2004 Edition with no Addenda [Reference 1]. The NAPS1 fourth interval started May 1, 2009 and ended April 30, 2019.
3.0 APPLICABLE CODE REQUIREMENT Refer to Table 1, Column 3.
Components identified in this request require examination of essentially 100 percent of the weld length. "Essentially 100 percent" as clarified by ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds," is greater than 90 percent coverage of the examination volume or surface area, as applicable.
The risk-informed welds described in this request are governed by the Risk-Informed I Safety-Based lnservice Inspection (RI-ISi) Program Plan that was approved by the NRG for NAPS1 in a letter dated January 21, 2011 [Reference 9]. The welds are assigned category R-A, Items R1 .11, R1 .16, and R1 .20, and require ultrasonic examination. The NAPS1 RI-ISi Program Plan, in accordance with Request for Alternative N1-14-Rl-001, applies the requirements of ASME Code Case N-716, "Alternative Piping Classification and Examination Requirements." The Item R1 .11 elements are considered subject to Thermal Fatigue as the most likely degradation
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 6 of 97 mechanism. The Item R1 .16 elements are considered subject to lntergranular or Transgranular Stress Corrosion Cracking (IGSCC or TGSCC) as the most likely degradation mechanism. The Item R1 .20 elements are not subject to a degradation mechanism. Limited examinations in this request are in accordance with section 3.3.2 of approved request N1-14-Rl-001 [Reference 9].
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Table 1. Repetitive/Duplicative Requests Page 7 of 97 Ef~ ?a)~979:~>
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' §~~ Paragraph 39% Volume Coverage 39% Volume Coverage Exam Cat9!lOtyR~1\
Item.No. R1.11 50% Volume Coverage 50% Volume Coverage 11715-WMKS-0103W / 6-RC-20 / 42 45.19% Volume Coverage R~A See Paragraph S.R{ *' *
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11715-WMKS-0103Y / 6-S~133 / 12 50% Volume Coverage Paragraph 4.R3 50% Volume Coverage 75% Volume Coverage 75% Volume Coverage 11715-WMKS-0103L / 6-Sl-131 / SW-7 74.5% Volume Coverage 11715-WMKS-01113C-3 / 12-S~69 / SW-8 87% Volume Coverage t'"<<t/i, '":!\'"i*ii>:111715-WMKS-0103AD /6-RC-21 / 18 50% Volume Coverage 11715-WMKS-0109G-1 / 29-RC-7 / 27 63% Volume Coverage 11715-WMKS-0113A-1 /14-RH-1 /4 50% Volume Coverage
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 8 of 97 A 1. Pressurizer Nozzle-To-Vessel Welds 4.A1 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the identified pressurizer nozzle-to-vessel welds, ASME Section XI Category B-D, Item No. 83.110. This requirement is considered impractical due to the pressurizer to nozzle weld configuration.
As shown in the attached enclosures, ultrasonic examination of the following pressurizer nozzle-to-vessel welds are limited in coverage due to the pressurizer to nozzle weld configuration:
Mark/Weld No. Line No. Scan Coverage Enclosure 13 1-RC-E-2 51.89% A1-1 Examination of the subject pressurizer nozzle-to-vessel welds was performed to the extent possible using qualified equipment and no further coverage is possible with existing technology.
Weld 13, for the relief nozzle, is limited to a single-sided exam due to nozzle configuration as shown in Enclosure A1-1. The total coverage for weld 13 is limited to 51.89%. Third interval relief was granted in N1-13-PRT-004 at 51.2% coverage. Second interval relief was granted in NDE-38 at 88.4%
coverage.
The subject pressurizer nozzle-to-vessel weld is constructed of SA-508 Class 2, a P-Number 3, Group Number 3 carbon steel material, with austenitic stainless steel inside diameter cladding and stainless-steel inserts. The welds extend the full thickness of the pressurizer vessel. Pressurizer upper and lower heads are fabricated from SA-533 Grade A, Class 2 carbon steel.
The existing nozzle-to-pressurizer upper and lower heads are welded with low alloy steel filler, essentially the same as the nozzle material. The subject pressurizer nozzles have a minimum thickness of 2.5 inches with 0.19-inch cladding. These nozzles are of the "set-in" design, which essentially makes the welds concentric rings aligned parallel with the nozzle axes in the through-wall direction of the pressurizer vessel. This design geometry limits ASME Code-required ultrasonic examination (UT) angle beam examinations to being performed primarily from the vessel side of the welds.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 9 of 97 Although UT scans were primarily limited to the vessel side only, studies have found that inspections conducted through carbon steel are equally effective whether the ultrasonic waves have only to propagate through the base metal or have to also propagate through the carbon steel weldment. Therefore, due to the fine-grained carbon steel microstructures, it is expected that the UT techniques employed would have detected any structurally significant flaws on either side of the subject welds.
Although Dominion considers it impractical to meet the ASME Code-required 100% volumetric examination coverage for the subject pressurizer nozzle-to-vessel welds due to nozzle configuration, it is believed that the coverage obtained would have identified any significant service-induced degradation.
The examinations performed also provide reasonable assurance of the structural integrity of the subject welds.
5.A 1 BURDEN CAUSED BY COMPLIANCE The ASME Code requires the volumetric examination be conducted from both sides of these pressure retaining welds. However, the design configurations limit access for UT scanning primarily to the vessel side of the welds. In order to effectively increase the examination coverage, the nozzle-to-vessel welds would require design modifications or replacement. Contrary to the intent of the ASME Code, such modifications and replacements constitute a burden rendering the volumetric examination requirements impractical.
6.A1 PROPOSED ALTERNATIVE AND BASIS It is proposed that the examinations already completed at the reduced coverage be accepted as meeting the Code requirements. Alternative components could not be substituted for examination due to the mandatory selection requirements of the Code. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, providing reasonable assurance of the continued structural integrity of the subject welds.
UT examinations were conducted using ASME Code,Section V, Article 4, techniques and included 0-degree longitudinal, and 45- and 60-degree shear waves from the vessel.side. The examination volumes included the weld and base materials near the inside surface of the weld joint, which are typically the highest regions of stress, and where the expected degradation
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 10 of 97 mechanisms would be manifested should they occur. Manual scanning was used for these examinations. The configuration of the nozzle-to-shell weld limits the effective examination of the required examination volume. The nozzle's proximity to the weld limits scanning due to the nozzle bend radius causing lift-off of the search unit during scanning. No recordable indications were identified during these examinations. The physical configuration of each nozzle limits the effectiveness of alternative or advanced technologies from increasing the examination coverage for this configuration.
Enclosures A1-1 includes the complete Ultrasonic Examination Data Reports for the Category B-D, Item B3.110, examination included in this relief request.
The report includes details of the UT scanning parameters, including transducer size, frequency and angle. Also included are coverage plots for each of the examinations showing the nozzle configuration and percent coverage for each individual scan.
The A1-1 Enclosure includes search unit details, wave modality, and insonification angles used for all examinations, including the results of each scan. The examinations were performed with 45-degree shear wave, 60-degree shear wave, and 0-degree longitudinal wave search units (as identified in the reports).
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Drawing No.: 11715-WMKS-RC-E*2
Description:
Nozzle to Vessel I S}'1,tem ID: RC
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Com ponent tO: 11715*WMKS*RC-E*2 / 1*RC-E-2 I 13 Size/Length: NfA / N/A Thickness/Diameter: 3.49" / NIA Limitations: NoZ.?le configuration. *Start Time: 2149 Finish Time: 2211 lnliit ruinent Settings Sea.rch Unit C11!. Time Dale Axial Oriented Search Unit Serial No.: 140723807 Serial No.: OOY5K7 Checks Calibration Signal Sweep Manufacturer: Olympus Manufacturer: KBA Initial Cal. 1915 3/15/2018 Sound.Path Reflector '1mplitu<le % OMsion Model: EPOCH600 Linearity: L*18 *006 Size: .5" X1.0" Model; Comp-G Inter.Cal. 2149 3/15/2018 1.980~
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Recordable lndica!lon(s): Yes O No~ {If Yes, Ref. Attached Ultrasonic lndrcatlon Report.) (,.)
Results: N~I@ RI Q Geom O Comments: Cal block VG8-21 is only partially clad so bloc.k VRA*28 a.
(S.20" thick) was. used to determine the 6.0 dB difference '1J Per~nt Of poverage Objained >90%: No Reviewed Preyious Dat13: Yes from the 3/4 TS.OH to the 5/4 T SOH from the clad side. CD
- !. 0 (/)
0 0 Examiner Level II-POI Signature a. () (I)
Hacker, Jonathan r"'
..,., - * (I) 0)
ru'3--
Examiner Level If-PD Signature (C;:::;.: z z Zollner, Brian O CD CD ~ ~
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- 0) (,.) 0 UT Callbration/Examii'latlon c.o3 (,.)0,
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE A1-1 Page 14 of 97 Coverage calculaled usiflg Domlnlon us,nd; procedure ER-M-NDT-UT-702. Nom Nominal thkkness Rev 4, Par 8.2.4. BM Base material Angle Beam Scanning Ckc Cin; Scan Direction V\leld,2angles,4directions Ax Axial scan direction Base Material, 2 angles, Sh SheR side I dif'edlon 4 directions where posslbte. Noz Nozzle $ide I direction UpSt Upslream side of weld Dnst Downstream side of weld Refer&nce (from data sheets): Nozzle (UP) and Vessel (DN) 51.89% Code Required Volume Examined 3 BM+ 10 Weld/ 13 c:t'ievlewed C WltnMffd
,b,},r Hartford See Page S of 5 for detailed coverage calculations Steam Boiler 9531 HS8 Cov~ae Summarv Reoutred ScaM (each has a weighing factor of 100 for eomprete c.overage)
UpSt-Ax Uost..Circ DnSt--Ax DnSM:irc O"BM 46.80% NIA NIA NIA BMCirc 46.80% NIA NIA NIA BMAx 77.40% NIA NIA NIA 0.00% NIA 100.00% NIA 45°Wefd 11.10% 0.00% 90.70% 100.00%
eo*Weld 7.10% 0.00% 94.70% 100.00%
Code Coverage Total I 51,89%
Notes:
- 1) Code Coverage refers to the maximum pereen~ of the required examination volume that is effectI\lely examined with lhe qualified examination procedure.
- 2) B8$t Effort Coverage mfe~ to the required examination volume past the weld centerline that I&
examined in fhe axial beam direction with an Appendix VIII demonstraled procedure tor single sided coverage.
-~Ntt' fl. Sr-**
- JI\ lwt ~ 11>~* H ,,pft;.4 0 Jth., /~11
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE A 1-1 Page 15 of 97 Base Material
- Ax 45°, 60" 16.51 Sq In - Total BM Volume 16.51 Sq tn - Total 8M Vo<<i.tme 8.78 Sq In Noz, 7.73 Sq In Sh 8.78 Sq tn Noz, 7.73 Sq In Sh 46Jl% (O" & BM Circ) 45* 11.97 Sq In (72.5%) 424 + 7.73 Sq In 60" 13.59 Sq In (82.3%) 5.85 + 7.73 Sq In
'17.4% (BM Ax - Composite)
Weld - On Shell}
Lift Off* All Angles
£ 5.6 Sq In - Total Weld Volume 5.5 Sq In - Total Weld Volume 90.7% (4.99 Sq In 46" Weld Dost~ $ld&} 11.1% (0.61 Sq In 45" Weld UpstAx Side) 7.1% (0.39 Sq In eo* Weld Upst Ax Side)
+
94.7% (5.21 Sq In 60" Weld Dost.Ax Side)
Weld-Circ fi ____
Uft Oft'* All J!41es i ,..,, 6.5 Sq In* Total Weld Volume 0% co Sq ,no*, 45*, eo* UpSt-Cire Side) 100% {2.75 Sq In O", 45", ao* DMt~Cire Side)
JPI/JJI" Cl1bwl&wad DW~nd Nome Vessel Hartford Steam Boler
Seri.al No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 16 of 97
- 81. Nozzles Without Reinforcing Plate in Vessels > % in. Nominal Thickness, Nozzle-to-Vessel Welds 4.81 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the identified nozzle-to-vessel welds. This requirement is considered impractical due to single-sided access.
UT of the identified nozzle-to-vessel welds on the boron injection tank is limited to 39% volume coverage because of single-sided access due to the nozzle-to-shell weld configuration. Refer to Enclosures B1-1 and B1-2 for coverage and scan details for welds 3 and 4. UT examination was performed to the extent possible. 100% of the required surface examination was achieved with no indications found.
5.81 BURDEN CAUSED BY COMPLIANCE Contrary to the intent of the ASME Code, destruction of the component would be necessary to perform 100% of the required examination as written in the 2004 Edition.
6.81 PROPOSED ALTERNATIVE AND BASIS It is proposed that the examinations already completed at the reduced coverage be counted as meeting the Code requirements. The limited volumetric examination should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld.
Two other components were examined in Category C-B, Item No. C2.21, in the third ISi inspection interval, obtaining "essentially 100 percent" volumetric examination coverage. Third interval relief was granted in relief request N1-13-PRT-004 with 36% coverage for welds 3 and 4. Second interval relief was granted in relief request NDE-48 with 39% coverage for weld 3 and 31 %
coverage for weld 4.
m UT Calibration/Examination z 0
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Workscope: ISi Worl< Order No.: 59102983133 Page; 1 ol
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Code:
Drawing No.:
11715*WMKS-Sl*TK*2 CatJllem: C*B/C2.21
Description:
NOZZLE-SHELL Location: AUX244 DJ I
Componecnt ID: 111.15-WMKS-SJ.TK-2/ 1-Sl*TK-2/ 3 Limitations: Sillgle side exam due to nozzle to shell weld configuration.
Size/Length:
1.5" / 33" StartTime: 1802 Thk:kness/Diamctcr:
Finish Time:
2,5 I 10" 1608 Instrument Settings Search Unit Cal. Time Date Axial Oriented Search Unit Serial No.: 140723807 Serial No.: 00042T Cheeks Calibration Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: KBA Initial Cal. 1350 9126/2016 Reflector Amplitude% Division Model: EPOCH 600 Linearity: L,16-018 Size: 0,25" Model: Gamma Inter.Cal. 1602 9/2612-016 1/4T 80 1;9 0.559" Delay: 1.437µs Range: 3.114" Freq.: 2,25MHZ Center Freq.: NIA Inter. Cal. NIA i/2T 36 3.9 1.183" 0.234,1 in/µs Pulser: Square Inter. Cal. 1608 9/2'612016 M'UCalNel: Exam Angle: o* Squint Angle: NIA 3T4T 20 5.9 1.815
Damping: 4000 Reject: 0%
Final Cal. 1725 9/2612016 aw 61 8.0 2.495" Measured Angle: ~ Mode: Long Rep. Rate: Auto Freq.: 2.25Mhz Couplant Exit Point NIA # of Elements: 1 Filter: 0.5-4.0 Mode: Fullwave Config.: Single Focus:
NM Cal. Batch: 12J066 Circumferential Oriented Search Unit Voltage: 400 Other: NIA Type: Sonotech Calibration Signal Sweep Shape: Round Contour: Flat Reflector Amplitude% Division Sound Path Mfg.: SONOTECH Wedge Style: Integral NIA Ax. Gain (dB): 17.4 Circ. Gain (dB): N/A Exam Batch: 12J066 10 Screen Div.= ~ in. of Sound Path Search Unit Cable z)>
-- .Ca.libratlon Block Type: RG174 Length: 6' No. Conn.: O lfype:
Mfg.:
Sonotecll SONOTECH "U (J)
Cal. Block No. VRA*27 Scan Coverage .....
- Reference Block Reference/Simulator Block Thickness 2.478" Dia.: 0 Upstream ~ Downstream[] Scan dB: 23.4 05-5560 Gain Signal Sweep Sound Path
~
cw~ CCWli!) Scan dB:~ Serial No.; dB Reflector Amplitude% Division :::,
Comp. Temp, Cal. Blk. Temp. 10* Temp. Tool:
~Temp.Tool:
ATK,1 ATK*1 exam Surface:
~,,rf'!lrA r-r.nA:a:"'n*
OD - - Type: CS Rompus Block 17.4 SOH 55 2.4 0.728" r+
CD Contour Ground Ill D NoRJ Ultrasonic Indication Report,} (.,.)
Results; NRI~ RI o G~Qlll D Commenhi: None a.
"U Percent Of Coverage Obtained > go%: No Reviewed Previous Data: Yes CD
- !. 0 .(J) 0 0 Examiner Level n Date I Reviewer Date 0.. C1 CD r;;,i;-::i .
Orth, Michael J. 9/26/2016 ...., -* CD Ill ci'3r+-
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE 81-1 Page 18 of 97 i
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE 81-1 Page 20 of 97 Supplemental Report Summary No.1 ;;.;N...:.:1*;;;;;;.c;;:;;;2.2c::..1;;;.;.o;,;co..;..1_ _ _ _ _ __ --4 of 5 Eumin~r: Orth, Michael J. t\t): Lave!: I! R~ ::!--'-"'"'"""'~"=""""'.......,,,,,_,-..,.....__
Examin~ ...,tu_A_ _ _ _ _ _ _ _ _ _ Level:: k/A St1e R~: ~cc.:::.J
~ . NIA L!Wel: WA ANH Review: - - " " '
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE 81-1 Page 21 of 97
.JiJVDominion~
Report No: UT-16-115 Summary# Nl.C2.21.007 Pg. 5 of 5 Prepared by: W. Thomas'7r~
Date: 9/30/2016 A'R...,,
gr Weld Number 3 Weld Width 1.5" Thickness 2.18" Weld Length 33" Angle Scan Area Direction %Coverage Odeg Weld and SM N/A 1S 45&60 Base Metal OS 100 45&60 8aseMetal us 100 45 Weld Metal DS 0 45 Wel<iMetal us 100 60 Weld Metal OS 0 60 Weld Metal us 100 45&60 Base Metal USCW/CCW 15 45&60 Base Metal DSCW/CCW 0 45 Weld Metal CW/CCW 0 60 Weld Metal CW/CCW 0 Total 39%
Examination Volume
-- . Dimensions - Height 0.727" Length 33" Width 2.S" Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage}
ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Circ SEE TABLE ABOVE
-k;:';:wed Code ~overage Total I 39% r Witnessed
- Best Effort Coveragte (Max 25%) Total I N/A ~
Notes:
- 1) Code Coverage refers to the. maximum percentage. of the required examination volume . ~
that is effectively examined with the qualified examination procedure. 9531
.HS!}.GS*
l) Best Effort Coverage refers to the required examination volume p~ ~ weld centerline thatis examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.
JJ;jv/vLr/'.~ .tr<< J_pu~~:;J ju~ PP,~ I"/.._/.._,,.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE B1-1 Page 22 of 97 Magnetic Particle Examination hmimo11' S{tellJriit Summary No,; _ _ _
NAPS l 1 N_1._c_:z._:u_.D1>_1_ _
Procedum:
~ LIf!!
ER*AA-NPE,IIIT*200
'Rev.: _ _ _ _.._ _ __
Workscopa; ISi Werk Oro0r No.: 69102983133 Gode::
Drawing No.: _ _
ASME 2004 EcL ~;
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Site/Unit NAPS Procedure: ER*AA*NOE..Ur.702 Outage No.: N1 R25 r-
~Dominio,tt 0 Summary No.:
Workscope:
N1.C2.21.008 ISi Procedure Rev.:
Work Order No.:
4 59102983133 Repc:irt No.:
Page: 2 UT-16-116 of 5
"':::0 C:
m Code: ASME 2004 Ed. Catlltem: C*B1C2.21 Location: AUX244 OJ
...1.
Drawing No.: 11715*WMKS.Sl*TK*2
Description:
HEAD-NOZZLE. I N
. System ID: SI
. Component ID: 11715*WMKS.S1*TK-2 / 1*S1-TK-2 / 4 Size/Length:
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE 81-2 Page 27 of 97 Report No: UT-16-116 Summary# N1.C2.U.008 Pg. 5 of 5 Prepared by: W. Thomas Date: 9/23/2016 Weld Number 4 Weld Width 1.5" Thickness 2.18 Weld Length 33" 60 WeldMetai us 0 45&60 Base Metal US CW/CON 0 45&60 aaseMetlll DSCW/CCW 15 45 Weld Metal CW/CCW 0 60 Weld Metal CWICCW 0 Total 3$%
0.11,7" 33" Width Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage)
ANGLE UpSt-Ax UpSt-Circ DnSt*Ax DnSt*Circ SEE TABLE ABOVE Code Coverage Total I 39%
- Best Effort Coverage (Max 25%) Total I N/A Reviewed Notes:
l) Code Co~rage ref@f!l lo the maximum percentage of the required examination volume that ls effectively examined with the qualified examination procedure,
- 2) Best Effort Coverage refers to the required examination volume past the weld HS8 GS centerline that Is examined in the allial beam dil'tlCtlon with an Appendix VIII demonstrated procedure for single sided coverage.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE 81-2 Page 28 of 97 Magnetic Particle Examination Sile/Unit: NAPS / Procedure:
ER-AA-NDE-MT*200 Procedure Rev.: _ _ _ _ _ 4_ _ __
Oµtage No.:
N1R25 Summary No.:
W o11(scope:
N1 .C2.21.00B ISi Worn Order No.: 59102983133 Report No.:
Page: 1
MT-16-002 of 1 Code:
ASME 2004 .Ed. Cat./ltem:
C-B/C2.21 Location:
-..,.-------------- AUX 244 Drawing No,:
11715-WMKS-$1-TK-2 D6$Cription: HEAD-NOZZLE
.System ID:
t SI Cpm ponent 10: 11715-WMKS.Sl*TK-2/ 1-51-TK-2 / 4 Size/Length:
1.5" /33.0" Limitations: None
~ Light Meter Mfg.: ________NI_A _ _ _ _ __, Serial No.:
NIA Temp. Tool Mfg.: _ _ _ _ _A;;.;T.,Kl""""N""S_ _ _ __ SeriaI No.: _____A"""T_K....-1..:......_ _
Illumination:
Surface Temp;:
NIA Resolution: 0;044" Character Card Lift Block Serlal No.: MT-38 Surface Condition:
As Welded Lo/Wo Location:
Magn etl c Particle Material NIA Wet FieId Orientation:
0 0/90° Field Orientation Brand: MAGNAFLUX Dry52] Mixed: YesO Applied By: Dusting 52]
Type: BARed Visible O No 52J Spraying D 14A127 Fluorescent 0 Flooding D Batch No.:
Equipment: PARKER With:
Serial NIA No.: _ _ _ _ _ 7;;. ;8:c.:2;,; 0_ _ _ __
H~Shot 0 NIA Amperes Fixed Spacing O AC til DC 0 Adj. Spacing [i!J 6". inches Encircling Coils O _ _N_I_A___ Tvms Prods. Spacing O NIA inches Current (machine setting)
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0 N/A Amperes Indication Loe L:oc Diameter Length Type Remarks No. L w R/l NIA Comments:
Flashlight checked with Character.Card SN: OOM-2016-0164.
Results: NRI ~ RID Eva! 0 Percent Of Coverage Obtained > 90%: Yes ReViewed Previous Data: Yes Exam Time: 2146 Examiner level 11 Stevenner, Aaron J.
Exafriiner Level NIA N/A Other Level Signature Magnetic Particle E)(3nilnatlQl1
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 29 of 97 R1. Risk-Informed Piping Welds Subject to Thermal Fatigue 4.R1 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the piping welds identified below. This requirement is considered impractical primarily due to single-sided access and configuration of these components.
Dwn/CW/CCW 60 Shear 2.25 Own 70 Shear 2.25 Own 60 Longitudinal 2.0 6"-RC-20 ';45.19%.
- fJelCWICCW* 3/16/2018 45 si~ar 2t25 Up/CW/CCW 60 Shear 2.25 Up 70 Shear 2.25 Up 60 Longitudinal 2.0 NOTES: 1 Up Axial scan on the upstream side of weld Own Axial scan on the downstream side of weld CW Circumferential scan in the clock-wise direction CCW Circumferential scan in the counter clock-wise direction The examinations in the table above were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements.
Based on the access and physical limitations of these welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of these examinations.
Enclosures R1-1 through R1-3 include the complete Ultrasonic Examination Data Records for each Category R-A, Item R1 .11 examination included in this
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams Page 30 of 97 relief request. Each report includes details of the UT scanning apparatus, including transducer size, frequency, angle, wave modality and insonification angles. Also included are scan plots for each of the examinations showing the piping configuration and percent coverage for each individual scan. There were no recordable indications identified during any of these examinations.
Weld 21 (6"-RC-17), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the elbow-to-branch configuration, limiting downstream scans. The weld is at the loop piping weldolet from the Low Head Safety Injection system into the Reactor Coolant system cold leg (27 1/2"-RC-3). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained an additional 25 percent total coverage of the downstream side of the weld. Line 6"-RC-17 is 1,500 lb., Type 316 seamless stainless-steel piping. Weld 21 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength.
Weld 41 (6"-RC-20), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the valve-to-elbow configuration limiting upstream scans. The weld is at the check valve from the Low Head Safety Injection system into the Reactor Coolant system cold leg (27 1/2"-RC-9). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 15.9% additional total coverage of the upstream side of the weld. Line 6"-RC-20 is 1,500 lb., Type 316 seamless stainless-steel piping.
Weld 41 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Weld 41 is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configurations. Third interval relief was granted for 50%
coverage in request N1-13-PRT-004.
Weld 42 (6"-RC-20), Reactor Coolant System Class 1, was a single-sided examination (45.19% coverage) due to the pipe-to-branch configuration and welded pads, limiting downstream scans. The weld is at the weldolet from the Low Head Safety Injection system into the Reactor Coolant system cold leg (27 1/2"-RC-9). An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 14.25% additional total coverage of the downstream side of the weld. Line 6"-RC-20 is 1,500 lb., Type 316 seamless stainless-steel piping. Weld 42 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 31 of 97 procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Third interval relief was granted for 83.35% coverage in request N1-13-PRT-004.
The NAPS1 RI-ISi Program is based on ASME Code Case N-716 as identified in approved request N1-14-Rl-001 [Reference 9]. The subject limitations have been evaluated as acceptable, with no impact on risk analysis, and no further actions are necessary to provide reasonable assurance of pressure boundary leak tightness. The subject welds are included in the Class 1 pressure boundary and receive visual examinations at the beginning of each refueling outage as part of the Boric Acid Corrosion Control Program and VT-2 visual examinations at the end of each refueling outage after operating pressure and temperature is achieved before unit startup.
Weld examinations for welds 21, 41, and 42 were single-sided, but additional non-Code coverage was obtained (Best Effort Coverage) on the critical inside surface volume of both the weld and heat-affected area. These additional measures provide reasonable assurance that these welds are structurally sound. The subject welds were selected as part of an examination program that includes selections from different piping configurations, as well as selections from piping configurations categorized with different degradation mechanisms.
5.R1 BURDEN CAUSED BY COMPLIANCE The physical configuration of these welds, valve-to-pipe, elbow-to-branch, and a welded tag at an elbow, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further action can be taken to enable better examination coverage without destroying the component.
6.R1 PROPOSED ALTERNATIVE AND BASIS These welds were selected because they are determined to be of High Safety Significance with possible active degradation mechanisms. Selections were made based on plant-specific operating experience or history of examination, weld repairs, random selection across different pipe sizes and configurations, and radiation concerns. These welds were selected, in part, because a previousSection XI examination history exists. Comparison of examination results over time is critical to detect service induced degradation. Inspection
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 32 of 97 of these particular welds is considered the best choice for meaningful examination results.
It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. 100% of the pipe-to-valve welds were volumetrically examined from one side. No indications were discovered. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. In addition, these welds receive a visual examination during the system leakage test performed at the end of each refueling outage. As a result of the completed examinations, any pattern of degradation should be detected, thereby providing reasonable assurance of operational readiness.
The purpose of the inservice inspection program is to assure the structural and pressure-retaining integrity of safety-related nuclear power plant components in accordance with the rules of the ASME Section XI Code and the requirements of 10 CFR 50.55a. Although Dominion could select only weld locations where greater than 90% examination coverage is possible (when available based on selection criteria), meeting the purpose of the Code requires selecting a mix of not only piping-to-piping welds (where essentially 100% coverage is more likely), but also piping-to-valve welds, piping-to-pump welds, piping-to-vessel welds, socket welds, nozzle-to-pipe welds, etc. The ASME Code allows only 50% Code coverage for single-sided examinations.
In cases other than most piping-to-piping welds, the majority of weld examinations are considered single-sided examinations.
The risk-informed weld limitations are considered in ASME Code Case N-716 periodic updates to the Risk-Informed Program Plan, where the program is reevaluated to determine if any changes to the examination selections need to be made, including additional examinations if they are warranted. The limited examinations identified in this request have no impact on the change-in-risk evaluation for the third period, and no new examinations were added as a result of these limitations.
m UT Calibration/Examination z 0
,Dttminion* Site/Unit: NAPS P1ocedure: ER-M-NDE-UT-802 Outage No.: N1R25 r-0 Summary No.: N1.R1.11.009 Procedure Riv.: 4 Report No.: UT,16-057 en C:
Wmkscope: ISi , Work Order No.: 59102933133 Page: 1 of 4 ::0 m
Code:
Drawing No::
System 10: RC 2004 Edititm 11715.WMKS-0103N Cat.lltem: R*A/R1.11 Destliption: PIPE.COUPLING location: A-LOOP
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Com ponent JD: 11715.WMKS*0103N / 6-RC-17 / 21 Sizeflength:
.aw121* Thickness/Diameter: .719" / 6
Limitations: Single sided exam due to component configuration Start Time: 1102 Finish Time: 1114 Instrument Settings Search Unit Cal, Time. Date Axhll Oriented Search Unit Serial No.: 141)723807 Serial No.; 01CLNO Checks Calibration Signal . Sweep Sound Palh Manufacturer: Olympus 'Ma,nufacturer: KBA Initial Cal. 0744 911$/2016 Relle<:tor AmplilUde% Division Model: EPOCH600 Linearity: l*16.018 Size: 0.375~ Model: Comp-G Inter. Cal. 1102 9/16/2016 1"10N 80 7.0 1.413 Delay: 5.739 Range: 2.030" Freq.: 2.25MHZ Center Freq.: Inter. Cal. 1114 9/1612016 NIA M'tlCalNel: .1230 Pulser: square Inter. Cal. N/A Exam Angle: 45' Squint Angle: NIA Damping: 400ohms Reject: 0% Final Cat. 1337 9/1612016 Rep. Rate: auto !'req.: 2.25 Measured Angle:
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thitnplna; 41111 Aejett.:~ .t.f;lmlJTlld Ang!B: 6(1" Moo11t: ltlfl!lJ, R,Jp. R11ti.,: 1111110 Freq,:_..!! - Ccuplmt E:;M filtllnl .3"' I of Elemenil.: i Flllref: .M.O Ml.Ide; FW - - - Qll. &i,teh:: 1lJ06& (lln::uroffflmttal ~lfflld Snn:lt Unit
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R1-1 Page 36 of 97 iii'Dominion"'
Report No: UT,-16-057 Summary ff*Nl.Rl}tt:o Pg~ 4 of 4 Prepared by; W. Thomas Date: 9/27/2016
~ . r.tl/ p;;;
7f'~
- Weld Number 21 Weld Width Thickness 0.96" Weld Length 21" FLOW
,2 l
0 I
2 I I 21
,t . ' - ,, '
- EXAMlNED 100% OF THE REQUIRE{)VOLUME US SIDE EXAMINED 100f"'QF THE REQUIRED VOLUME AX DIRECTION OS SIDE BES1' EFFORT.
ExaminatlonVolume Dimensions - Height 032" Length 21" Width CaverageSuri:unary Required Scans (each hasaweit'lingfactor of lOOfor completec<>verage)
ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Orc 45/60 100% 100% 0%
60L *100%
Code Coverage Total I 50%
lQO+100+100+0=:;i00/400=75
- Best Effort Covera~(~ax 25%} Total I 25%
Notes;
- 1) Code Coverage refers to the maximum percentage of the*required examination volume that is effectively examined with the qualified examination procedure.
- 2) Best Effort Coverage .refers to the requlred*examinatkm volume past the weld centerline that is examined in the axialbeam direction with an AppendocVIII demonstrated procedure for single sided coverage.
-~ -
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,Dominion* Site/Unit: NAPS / Procedure: EReAA*NOE-UT*802 Outage No.: N1R26 r 0
Summary No.: N1.R1.11.012 Procedure Rev.: 5 Repqrt No.: UT*18 .018 en IS1 C:
Workscope: Work Order No.: 591030$7002 Page: 1 of 5 ::0 m
Code: ASME 2004 Ed. .Cat./Jtem: R*A/R1.11 Location: C Loo.p Rm
- 0 Drawing No.: 11715-WMKS-0103W Desc:ription: Valve to Ell:>ow System ID: RC N
Component.10: 11715*WMKS.0103W / 6-RC*20 / 41 Si:ze/Leilgtll: 0.9"/20.,8>>
Thickness/Olameter: 0.718"16,0" Umitatioos: Single sided due to con(lguratH:m. Start Time: 2241 Finish Time: 2304 lnstrumen.t Settings Seatch Unit Cal, Time Date Axial Oriented Search Unit Serial No.: 140723807 Serial No.: OOVJBX Checks Calibration Signal Sweep Sound Path Manufacturer: Olympus Manufacturer: KBA Initial Cal. 0703 311612108 Reileqtor Amplitude% Division Linearity: L*18 ..oos* Inter. Cal. 2241 3/16/201.8 Mocll:ll: EPOCH600 Size: 0.315" M6d\'il: Comp-0 1"N.otch 80% 7.2 1.44o" Inter. Cal. NIA Delay: 5.800 IJS Range: 2;cr* Freq.: 2.2'5MHZ Center Freq,: NIA, Inter. Cal. 2304 3/16/2018 M'tlCalNef: 0.1235 infµs Pulser: Square Exam Angle: 45* Squint Angle: N/A Final Cal. .0030 3/1712018 Damping: 4000 Reject: 0% Measured Angle: ~ Mode: Shear Coupfant Rep. Rate: Ai.Ito Freq.: 2,25Mhz Eidt Point 0,25B # of Elements: Single Cal. Batch: 17F087 Circumferential Oriented Search Unit Filter: 0.5-4Mhz Mode; Fullwave Conng.: Single Focus: NIA Type: Sonotech Calibration Signal Sweep Voltage: 400v Other: NIA Shape: Round Contour. Fla.t ReffectOr Amplitucle% Division Sound.Path Mfg.: Sonotech Wedge Style: MSWQC NIA Eii8maatch: 17F087 Ax. Gain(dB): 13.0 - Ciro. Gain (dB): NIA Search Unit Cable Type: Sonotech z)>
Type: RG174 Length:..!.. No.. Conn;: o 10
-- Screen Div."'
-- 2 in. of Calibration Block, Sound Path Scan Coverage MF .
g.. Sonotech Reference/Simulator Block "U
(./)
Cal. Block No. 10876 Upstream D Downstream@ Scan dB:~ Refe~nce Block .i:,..
Gain Signal Sweep 5'-
Thickness 2.25" Dia.: 0 cw~ CCW@ Scan dB: 25 Serial No.: 05*6533 dB Reflector Ampntude% Division Sound Path
- J Cal. Blk, Temp. 70" Temp. TO<)!: 1066BGCY E~m Surface: OD
. - - T~e: SS Rompus Block 13.0 FSOH 21% 5.3 1.063" co Comp:Temp. 77* Temp. Tool: 1066BGCY Surface Condition: Smooth ~
Recordable lndication(s). D @ (If Yes, Ref. A,tt!!ched Uttrasonic Indication p w Comments: None. a.
Results: NRI @ RIO Ge.om D "U Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: Yes CD
- !. 0 (/)
0 0 Examirulr Leve! ll*PDI Date a. o CD r"
-* CD
- i .
Ill Hacker, J.onathan o3'3--
Examiner Level NIA Oafe co;::;;ZZ N/A CD CD w a. .... !=' !='
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m UT Calibration/Examination z 0
,Dominion' Site/Unit: NAPS Procedure: ER*M-NOE*UT-802 Oula9e No.: N1R26 r 0
Summ.iryNo;: N1.R1.11.012 Procedure Rev.: 5 Report No.: I.IT-18 --018 CJ)
C Workscope: ISi Wo.tk Order No.: 5.9103057002 Pa11e: 2 of 5 ::u m
Code:
Drawing No.:
System ID: RC ASME 2004 Ed.
11715*WMKS.,0103W Cat.lllem: R-AIR1.11
Description:
ValveJo Elbow Locatiom C.Loi:>pRm
- u N
I Com ponent ID: 11715-WMKS-0103W I 6*RC*20141 Si:te/Len!lth: 0,9"/20.8" Thickness/Diameter: 0.718"/6.0" Limitations: Single sided due to ci:>nfiguration, Start Time: 2304 Finl.sh Time: 2324 Instrument Settin9s Search Unit Cal *. Time Date Axial Oriented Search Unit Serial No.:
- 140723807 Serial No.: S10321 Checks Calibration Signal Sweep Manufacturer: Olympus M;mufaclur11r: GE Initial Cal. 1923 3/16/2018 Sound Path Reflector Amplitude% Division Model: EPOCH600 Linearity; Ls18 *006 Size: ;375ff Model: Comp-G Inter.Cal. 2304 3116/2018 1"Notch 80% 7.2 1.8" Delay: 7.0011 µs Range: 2.sou Freq,; 2.2S MHZ Center Freq.: NIA lntt!l:.Cal. NIA Inter. Cal. 2324 3(1612018 M'tlCalNel: 0.1230 in/µs Pulser: Square Exam Angle: ~ Squint Angle: ~
Final Cal, 0031 3/17i2018 Damping: 400.0 Rejee): 0% Measured Angle: ~ Mode: Shear Rep. Rate: Auto Freq.; 2.25Mhz Coup!ant Eld! Point 0.3" #.of Elements: 1 Filter: 0.5-4 Mhz Mode: Fullwave - Cal. Batch: 17F087 Circumferential Orient.ed Se.arch Unit Config;: Single Focus: NIA ..
Voltage: 400 V Other: NIA Type: Sonotech Calib(i1lion Signal ~i"'f!ep Shape.: Round Contour: Flat Reflector Ampfilude % Division Sound Path Mfg.: Sonotech Wedge Style: MSWQC NIA Ax. Gain (dB): 29.0 Cii'c. Gain (dB): NfA Exam Batch: 17F087 Search Unit Cable Type: Sonotech z)>
Sound Path
--10 Screen Div."'
--2.5 in. of Calibration Block Type: RG174 Length:..!.. No.Conn;: o Scan Coverage
- Mfg.; Sonotech iJ (J)
Reference/Simulator Block Cal. Block No. 10876 Upstream O Downstreamfi!j Scart dB:~ Reference Block
~
Thickness 2.25" Dia.: 0 Gain Si9na1 Sw!fep ~
Reflec:to.r AmpUtudeo/o DMsion Sound Path CWfi!j CCW~ ScandB: 41 Serial No.:. 05-6533 Cal. Slk. Temp. 2!.. Temp. Tool: 1066BGCY Exam Surface: OD
-- Type: SS Rompus Block dB 11 t* Rad 95% 4;0 1.0~
- I (D
Ct:imp.Temp. .IJ.:... Temp. Tool: 1066BGCY Surface Condition:
- . -- *- -- .. .. - .. - Smooth p
0) w Results: NR! feJ RID Qeom O Comments: Effectlv11 c<>verage using .the so* search unit has be:en a verified by the presence <>f"the weld root response iJ during the requited scans. (D Percent Of Coverage Obtained> 90%: No Reviewed Previous Data: Yes
- !. 0 (J) 0 0 Examiner Level 11-PDI Date Date 0. C') (D Hacker, Jonathan 3/16/2018 r ,_. ::::!.
Examiner Level NIA m3--
..,., - * (D cc;:;: z z 0)
NIA CD CD O 0 w 0. :. :.
Other Level NIA Signature' Date I ANll ~eview Date CXl m CJ1 N NIA o><<?<?
-m w o UT Calibration/Examination c.o 3 (.,J (J1
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UT Calibration/Examination m
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~Dominion' Site/Unit: NAPS Procedure: ER*AA-NOE-UT*802 Outage No.: N1R26 r-0 SurnmazyNo.: N1.R1.11.0.12 Procedure.. Rev.: 5 Workscope: ISi Work Order No.: 59103057002 Report No.:
Page: 3 UT-18 *(>18 or 5 "';;o C:
Code: ASME 2004 Ed. C;il./ltem: R-A/R1.11 Location: C Loop Rm m
Drawing No.: 11715*WM1<S,01Q3W
Description:
Valve to Elbow ....;;o I
System ID: RC "'
Com ponen! ID: 11715*WMKS~0103W / 6*RC*20141 Size/Length: 0.9"120.8"
Thickness/Diameter: 0.718"/SJ)"
Limitations: Single sided due to configuration. Start Time: 2324 Finish Time: 2334 Instrument Settings Search Unit Cal. Time Date Axial Oriented Search.Unit Serial No.: 140723807 Serial No.: S10328 Checks Calibration Signal Sweep Manufacturer: Olympus Mimufacturer: G.E lnitl_al Cal. 1937 3'16/2018 Sound Path Reflector Amplitude% Division Model: EPOCH GOO Linearity: L*18 .006 Size: .375" Model: Comp-0 Inter. Cal. 2324 3/16/201.8 1" Notch 80% 8.4 2.9" Delay: 7.800 ps Range: 3.50" Center Freq.: Inter. Cal. NIA Freq.: 2,25 MHZ NIA M'tlCalNel: Pulser; Square Inter. Cal. 2334 3J16/201Q 0.1235 lnfµs Damping: 4000 Reject 0%
Exam Angle:.
Measured Angle:
70° Squint Angle:
10* Mode:
NIA Shear Final Cal. 0032 3/1712018 Rep. Rate: Auto Freq.: 2.25Mhz Exit Point 0.4°
-- #-of Elements: 1 Couplant Fitter: o.ti-4 Miu Mode: Fullwave Contig;: Single Focus:
- - ca1. Batch:
N/A 17F087 Circumferential Oriented Search Unit Voltage: 40h Other: NIA Type: Sonotech Calibration Signal . Sweep Shape: Round Contour: Flat Reflector Amplitude % DMslon Sound Path Mfg,: Sonotech Wedge Style: MSWQC NIA Ax. Gain (dB): 33.0 Circ; Gain {d8): NIA Exam Batch: 17F087 Search Unit Cable z
- 10 Screen Div, =
- 3,,5 In. of Calibration Block Sound Path Type: RG 174 Length:..!_ No. Conn.: O Scan C<.'iverage Type:
Mfg.:
Sonotech Sonotech Reference/Simulator Block
)>
iJ
(/)
Cal. Block No. 10876 Upstream O Downstream 0 Scan dB:~ Reference Block ~
Thickness 2.25" Dia.: 0 Gain . Signal Sv,ieep s:
cwo CCWO Scan dB:~ Serial No.: 05-6533 dB Reflector Amplitude% Division sound Path
- I Cal. Blk. Temp. ~ Temp. Tool: 10ll68GCY I!:._ Temp. Tool:
Exam Surface: 00 Type: SS Rom pus Block 9.0 1" Rad 70% 2.9 1.0" ro Comp. Temp. 1066BGCY Surface Condition: Smooth <
!l.)
Recordable Indication($): Yes O No@ (If Yes, Ref. Attached Ultrasonic Indication Report.)
w Results: NRI 0 RI 0 Geom O Comments: None. a.
iJ Percent Of Cpverage Obtained > 90%: No Re\i\ewi,d Previous Oata: Yes (D
- !. 0 (/)
Examiner Level U-PDI re Date Date oo
- a. (') (D Hacktt, Jo_ilathan 3/16/2018 r;;,;-::::!.
iJ -* (D !l.)
El<ai'rllner Level NIA Date !l.) 3 r+ -
NIA (0;::;: z z (D (D ~ ~
Other Signature Date Date w a. ....
Level NfA co mc.n"'
NIA 0
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UT Calibration/Examination co3wc.n
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Sltlll'Unlt: Ptm:ll!!dure: ER-M,f.lDE-l.lT.ml:l Outage No,; >>tltttl j'
,Doftll11ion* IIIAPS 0
Summart N0,.; ~Ul1.11.1112 ~ ~.: $ RellGt No.; Ut *18 4l'lil en C:
Wort~: 1st Wc.\ On:!er ~; ~0$~$7002 Pag.i: 4 (If Ii ::0 m
Codt:
Dt1111mg Np.;
MMl:.201\14Ed.
1171$.WMKUtOffi CM.Jltail; R~1.11 Oe!icrtptbt V~e to Eloow LOQ!fiQil: C Loop Rm
- 0 I
I\)
SYt,lml ID:
RC Com~ 10: ifnS*WMKS..01~ /G,RC,to I 41 mm1Lql:ll'. o.irm.r ~n1t11111nelll!r: o.T11$"/Ur Um~!Ma: SingJ<< ,rded dw w ,ccmffg1mttlon. ~Time; ~ Flrii$.11 ilintr. U41 lnslruirntnl htllnglil k,att:h\Jnlt Cal. Date JuJal Oriented Siellrch Uni!
Serial Na,,; 1407UIQ1 Serial No.: i!,i.1011 ~ ~ Sfg,-.l!,1 .* -
Manul111Q1u.;
ModGI.'. EPOCH GOO l~(y.
01ymJHII$
1.*13 .CH Mil!A!fll~
S'im: :i!IIX14)
RTO
-.~CIIL Mooe!: TR:t.2.-AUST ! *<<**** ~-* 1
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t* illottlh Al'lifllltl.tde %
ail% 1,1" 0111i!y: U ~" Rm09111: 2.50" Freq.: u fi'JHZ Canter frlli1:;x NIA M'.iJ CaWeh O.n3.0 i ~
OllfflP!nil: .40ct Cl Put11111r:
~eat:_!!
Square brmAng~ _.!!:_ Sqiilnl~e; 2!_1:::J _ i I _. *-*d R11p. Ri'illfl: Aun, Freq,: UMm:
MNISUJllCI Eid! f.ltllnt Ami*0.3"'-
, eo* illMQda: i!NGITIJIOINA o( Elements: 2 Co1¥J)ll!lt Flltar; 0,$,11 Mm MC!<* CilL ~ Cltcumfenn<<TII Otlciitlfd Sear,ch Unal
~tAon1~1s~1 Fulll'lil\"!, Coot19.: O.SBS Foou11: FO.i>.6"' 17FCIS7 V~: "v ~her. :NIA *. . . T'f?a: S0no1*e11 Shai:,<< R11imgul11r ~ Fl.Al' ,,,.,, , Sonoc ....
..,.., ~tiflsc'lor Aml!4\1tl<kl!\; ~n~ Pa!ll m,11 **
Wfldga Stylll:: l~grlli NIA M..G411in(da~ 41.0 Olltl. Gain (dB:); NIA Ellilm Barolt: 11FCB1
.Snrch Uit&t Cabla
. fype:
..onot*dl z)>
10 ~ Olv.
- Ui lrt, of """ ......,, Type: RG 174 LE!l')ljllh: t' No. Com,; !I
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- - - - Mt!,!,; Sonojcidl (/)
CaJ11>111~1>n Block kan Go~tag* ....>.
Cw. llloeU4Ct, 10Si'il Lf{ISlin!iam O oo.wnau*am ~ sun till!:. 53 Re.re"'""' Otock ~
~$!>$ U$" Ole,, C 'GWO ccwo StimdB: "ii" $1}ffalNc.: CIMUl Gbln dB Soundfl<IJlll Cat Btk, temp* ..!!:_ Temp, fll);CI!; 1MGBO<:Y &aim Surface; £2. -- TyPe; SS R<impuo 81odt U'.O I 1".bd. 1** ro Comp. Temps. !J:_ Temp, fll);CI!; 1Hi1BGCY Si11f11i::e Condi~n: !moelh <
~
R~tdal:ll11 lndicaii1>n(*}; Ylll& 0 No lit.I (If Ya, Ret AUIIClh!ild lllftl1l!lllnlo lm:l.iCillb Reporl.J (.,J Rault.: N!l\11 fia RI Geoff! 0 Commll!!ll:l.: l\l(lne. a.
""CJ J:>artiant Of CM,. Obaelnll!Q > 00%: No, Ri!wiwed ~ I J f l Oata: CD
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OIMf Li!~ NIA $lgnaJUm Date: 0 m 01 N MIA ox??
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R1-2 Page 41 of 97
-~::"
Weld No:
Weld T":
1171S'-WMKS-0103W Weld 41 0.718" Nom Report No:
Summary No:
Page:
Prepared By:
Date:
f,e.("(,1 ""~ c.u.'1 ,1J1..
UT-18..018 N1.R1.11.012 Sof5 D.R. Cordes 3/20/2018 Of\'L um Weld Length: 20.8" h b',~ :,/t f/1.,41 ¥ Weld Width: 0.9" l"
I"
~
""' . . . . QP .,.8"E FLOW
~615"/e&g,Cowrage ValveSIE 9.48" Required Volume-(0.24"H x 1.9W 20.S"L) or4.74"Vol perside.
T&C's from prior data (UT-07-142 and A08476) 50% Code Required Volume Examined (Weld)
Weld Exam Volume Dimensions: Height 0.24°(Nom) Length 20.8" Width 1.9" Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage)
Angle UDSt,.Ax UpSt..Circ DnSt-Ax DnSt..Circ 45°/60° Sh 0.00% 0.00% 100.00% 100.00%
60Rl 63:50%
Code Coverage Total 50.00%
Best EffortCoveraae(Max 25%) Total 15.90%
Notes:
- 1) Cade Coverage O;!fers to .the maximum percentage of the required examination volume that .iR effectively examined with the qualified examination procedure.
- 2) Best Effort Coverage refers to the required examination volume past the weld centerline that is examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.
t:!""'Reviewed CJ Witnessed
'lh#J-'
u.,.rffnrd
- .:>team Boiler 9531 HSB
m UT Calibration/Examination z 0
,Dominion' Site/Unit: NAPS Procedure: ER*AA*NOE;UT-802 Outage No.: N1RZG r-o* Summary No.: N1.R1.11.013 Procedure Rev.;
0 5 Report No.: UT-18 .019. CJ)
Woikscope: ISi Work Order No.: 59103057002 Page: 1 cif 5 C:
- 0 m
Code: ASME2004 Ed. Cat.ntem: R*A/R1.11 Location: CLoop
- 0 Drawing No.: 11715*WMKS-0103W Oescriplicin: Pipe to Branch I
(,J System ID: RC Component ID: 11715-WMKS.0103W / 6*RC-20 / 42 Size/Length:
0.9" 120.8" Thi.ckness7Dlameter: 0.7111"/6.0" Limitations: See comments Startnme: 2241 Finish Time: 2304 Instrument Settings Search Unit Cal. Axial Oriented Search Unit Time Oate Serial No.: 140723807 Serial No.: OOVJBX Checks Calibration Signal . SW11.ep Sound Path Man1.1fact1.1rer: Olympus Manufacturer: KBA Initial Cal. 0703 3/16/2108 Refleclor Ampl111.1de% Division Inter. Cal.* 2241 3(16/2018 Model: EPOCH600 Linearity: L*18 *006 Site: 0;375" Model: Comp*G 1" Notch 80% 7.2 1.440" Inter.Cal. N/A Delay: 5.800 µs Range: 2.0" Freq.; 2.25MHz Center Freq.: NIA Inter. Cal. 2304 3!16/2018 M'tl CalNel: 0.12:35 in/pa Pulser: Square Exam Angle: 45* Squint Angle: N/A Final.Cal. 0630 3/1712018 Damping: 4000 Reject: 0% Measured Angle;. 45* Mode: Shear Couplant Rep. Rate: Auto Freq.: U5Mhz Exit.Point 0.25~ # of Elemen~: Single C ch
- - a.1 8 at: 17F087 Circumferential Oriented Search Unit Filter: O.MMhz Mode: Fullwave Conllg.: Single Focus: N/A Type: Sonotech Calibration Signal $weep Voltage: 400v Ott)er: N/A Shape: Rounci Contour. Flat Reflector Amplilucfe% Oivl$ion Sound Path Mfg.: Sonotech Wedge Style: MSWQC N/A Exam Batch: 17F087 Ax. Gain (dB): 13.0 Circ, Gain (dB}: NIA Search Unit Cable Type: Sonoteeh z)>
Length: i;* J!..
--10 screen Oiv. =
-2.0 in.of Calibration Block Sou.ndPath Type: RG174 Scan Coverage No. Conn.; Mfg.: Sonotech Reference/Simulator Block
-u
(/)
Upstream ~ Downstream O Scan dB: 25.0 Reference Block Cal. Block No.
Thickness 2.25"
'10876 Die.: 0 CW@J CCW~ Scan dB: W .Serial No.: 05-6533 Gain dB Signal Sweep Reflector Amplitude% Division Sound Path t
- i Cal. Blk. Tel)lp, ...:!!._ Temp. Tool: 1066BGCY Exam Surface: 00
- - Type: SS Rompus Block 13.0 FSOH 21% 5,3 1.063" ro Comp. Temp. .II:... Temp. Tool: 106&BGCY Surface Condition: Smootl'l <
!l)
(Ii} D @ p Commenls: Single sided due to configuration. Welded pad from 6"-t!" w Results: NRI Q) RID Geom O a.
-u Percent.Of Coverage Obtained> 90%: No Reviewed Previous Data: Yes CD
- !. 0 (/)
0 0 Signature 0.. C') CD Examiner Level H-POf r;;,;-::i.
Hacker, Jonathan * -U -* CD !l>
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Weik Order No.:
5 59103057002 RePOrt No.:
Page: 2 UT-18 *019 of 5 C:
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Drawing No,:
System 10: RC ASME 2004 Ed.
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Description:
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P11911: 4 IJT*18 *019 Of S "':::0 C:
Codu: ASME 2004 Ed. CsU!tem: R*AIRM1 Loea11on: CLoop m
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R1-3 Page 46 of 97 Report No: UT~1S..019
. * . .D. .. :.. *. Summary No: N1.R1.11.013 o.m1n1on loU ()
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D.R. Corde¥ f,;JI 3120/2018 Weld No: 11715..wMK$,0103W Weld 42 Weld"T": 0.718'° Nom Weld Length: .... ....._e..______
20 Weld Width: ;:::o=.r======--.:-~----;-------,
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9.48" Required Volume- (0.24"H x 1.rrw 20.S"l) or 4.74" Vol per side.
90.38% US Ax/Ciro (2' of 20.8 "not" examined due to welded pad)
T&C's from prior data (UT*07-145) 45.19% Code Requtred Volume Examined (Weld)
Halght 0.24" (Hom)
An le 0.00%
60RL Code Coverage Total Nolfl: J *#1o
- 1) Code COYerage refers to the maximum percentage of the required eumioation volume that is effectively examined with the quallfied examination procedure.
- 2) 8fit Effort Coverage refers to the required examination vowme past the weld centerline that is examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided .coverage. r:r'llevi.wed
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 47 of 97 R2. Risk-Informed Piping Welds Subject to lntergranular or Transgranular Stress Corrosion Cracking (IGSCC or TGSCC) 4.R2 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the identified piping welds. This requirement is considered impractical primarily due to single-sided access for these components.
Up/CW/CCW 45 Shear 1.5 Up/CW/CCW 60 Shear 1.5 Up 60 Longitudinal 2.0 NOTES: 1 Up Axial scan on the upstream side of weld Dwn Axial scan on the downstream side of weld CW Circumferential scan in the clock-wise direction CCW Circumferential scan in the counter clock-wise direction This examination was performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Based on access and physical limitations of this weld, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of this examination.
The attached enclosure includes the complete Ultrasonic Examination Data Record for the Category R-A, Item R1.16, examination included in this request. The report includes details of the UT scanning apparatus, including transducer size, frequency, angle, wave modality and insonification angles.
Also included are scan plots for the examination showing the piping configuration and percent coverage for each individual scan. There were no recordable indications identified for this examination.
Weld 12 (6"-Sl-133) was a single-sided examination due to the pipe-to-valve configuration, limiting downstream scans. Weld 12 is considered both a R1 .16 element subject to lntergranular Stress Corrosion Cracking (IGSCC) as well as a R1 .11 element subject to Thermal Fatigue as the most likely
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th lnteNal 3rd Period Limited Exams Page 48 of 97 degradation mechanisms. The weld is on the upstream side of Low Head Safety Injection check valve 1-Sl-86, in the injection pipe to Reactor Coolant cold leg (27%"-RC-6). Additional "Best Effort" (non-Code) scan with a 60-degree L search unit obtained an additional 16.6 percent total coverage of the downstream side of the weld. Weld 12 in Line# 6"-Sl-133, is 1,500 lb.,
Type 316 seamless stainless-steel piping, with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 1N316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Similar relief was granted for NAPS1 weld 41 (6"-RC-20), 50% coverage during the Third Interval.
There were also three similar welds granted relief for the NAPS Unit 2 Third Interval.
5.R2 BURDEN CAUSED BY COMPLIANCE The purpose of nondestructive examination (NOE) is to perform inspections without destroying the component. The physical configuration of this weld pipe-to-valve connection confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further actions can enable better examination coverage.
6.R2 PROPOSED RELIEF AND BASIS It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. All welds in these groups of High Safety Significant areas are pipe-to-valve welds and inspection would result in similar limitations. Therefore, no alternative selections are available to meet greater than 90% coverage. The limited volumetric examination should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. A portion of the subject weld was examined volumetrically. In addition, this weld receives a visual examination during the system leakage test. Therefore, any pattern of degradation should be detected by this examination, ensuring reasonable assurance of operational readiness.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R2-1 Page 49 of 97
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Drawing No.:
- 11715-WMKS:.0103Y Oesct'.iption: PIPE-VALVE
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Start Time: 2230 Finish Time: 2240
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cw~ COW~ ScandB:~ Serial No.: 05-6533 Sound Path dB Reflector Amplitude% DMsi9n Cal. Blk. Temp. 2.!:_ Temp. Tool: 07 ct Comp. Temp. ..!!.. Temp. Tool: 07 Exam Surface: 00 Type: SS Rompus Block 30.0 NSl>H 75% 2.5 0.619" <~
Surface Condition: Contour Ground Recordable lndicatlon(s): Yes D No 2) w (If Yes. Ref Attached Uftrasonlc Indication Report.} a.
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Summary No.: N1.R1.16.005 Procedure Rev.: 4 Report No.: UT-16-088 r WOJl<scope: ISi Work Order No.: 59102983133 Page; 0
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Code: 2004 Edition Cat.lltem: R*A/R1.16 Location: RC241 :;o Drawing No.:. 11715*WMKS-0103Y
Description:
PIPE-VALVE m
- o System ID; SI I\)
Component ID: 11715*WMKS*0103Y / 6*S1*133./ 12 Size/Length: 0.80" / 20,8" TI1icknes\11Dlameter: 0.719" / 6.0"
- I Limitations: Single 1:ilded due to pipe to valve configuratls;,n. Start Time: 2210 Finish Time: 2018 Instrument Settings Search Unit Cat. Time Date Axial Oriented Search Unit Serial No.: 01XK03 Serial No.: 06-108 Checks Calibration Signal Sweep Sound Path Manufacturer: Krautkrainer Manufacturer: RTO Initial Cal. 2031 9/22/2016 Reflector Amplitude% Division Model: USN60SW Linearity: L-16..023 Size: 2(8X14) Model: TRL2-AUST lntor.Ca!. 2210. 9122/2(116 1.0" Notch 80% M 1.960" Delay: 8.08531,lS Range: 2.80" Fre*q.: Center Freq.:. Inter. Cal. N/A 2.0 Mhz NIA Inter. Cal. 2018 9/22/2016 M'IICa!Nel: 0.2238 inl1,1s Pulser Type: Square Exam Angle: ~ Squint Angle: _3_*_
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams ENCLOSURE R2-1 Page 54 of 97 R~port No; ur.:.16--088 Summary#NUU:16,005 Pg.5 of s Prepared by: W.Thomas ----1,.,;J trr' Date; 9/'IA-/2016 Weldfllumbe.r 12. WeklW'dth cur*
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 55 of 97 R3. Risk-Informed Piping Welds Not Subject to a Degradation Mechanism 4.R3 IMPRACTICALITY OF COMPLIANCE In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the piping welds identified below. This requirement is considered impractical primarily due to single-sided access and configuration of these components.
With the exception of Welds 33, SW-31, and 27, the examinations in the following table were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Welds 33, SW-31, and 27 were examined using a procedure written in accordance with ASME Section V, Article 4, and ASME Section XI, Appendix Ill. Based on the access and physical limitations of these welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of these examinations.
Enclosures R3-1 through R3-8 include the complete Ultrasonic Examination Data Records for each Category R-A, Item R1 .20 examination included in this relief request. Each report includes details of the UT scanning apparatus, including transducer size, frequency, angle, wave modality and insonification angles. Also included are scan plots for each of the examinations showing the piping configuration and percent coverage for each individual scan. No recordable indications were identified for any of these examinations.
Weld 1 (8"-RC-12) loop bypass piping-to-loop stop valve body, is a stainless-steel pipe to cast stainless steel weld. The weld is 1,500 lb., Type 316 seamless stainless-steel piping, with weld filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength, and the valve body is SA351-CF8M cast stainless steel. Coverage is limited because of the pipe-to-valve configuration, limiting the examination mostly to the upstream side. 50%
Code coverage was obtained. An additional 8.75% Best Effort (non-Code) coverage was obtained with a 60-degree longitudinal search unit from the downstream (valve) side. Similar relief was granted earlier in the Fourth Interval in request N1-14-LMT-001, Section R3.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 56 of 97 Longitudinal Dwnl<;,W/CCW .bpngitL1di11§J,. ;
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 57 of 97 Weld 33 (27 1/2"-RC-9), Reactor Coolant System Class 1, was a single-sided examination (75% coverage) due to the reactor coolant pump-to-pipe configuration limiting upstream scans. The weld is at the Cold Leg side of the C-Loop reactor coolant pump. The reactor coolant pump casing is cast stainless steel ASTM A351-TP304, and the piping is centrifugally cast stainless steel material conforming to ASTM A-351 CFS with cobalt content not exceeding 0.20% and silicon 1.00% maximum.
Weld SW-31 (29-RC-7), Reactor Coolant System Class 1, was a branch connection weld limited examination (75% coverage) due to the 14-inch weldolet to reactor coolant loop piping configuration limiting downstream scans. The examination was performed only from the centrifugally cast stainless steel side due to joint configuration. The weld is located on the Cold Leg side of the C-Loop between forged stainless-steel socket weldolet A-182-F316 material and centrifugally cast stainless steel material conforming to ASTM A-351 CFS with cobalt content not exceeding 0.20% and silicon 1.00%
maximum. Additionally, 100% coverage surface examination was performed to meet augmented requirements with no indications found.
Weld SW-7 (6"-Sl-131), Low Head Safety Injection System Class 1, was limited (74.5% coverage) due to lugs and a pipe clamp, limiting downstream scans. The weld is in the Low Head Safety Injection line to the Loop-A Cold Leg. An additional "Best Effort" (non-Code) scan with a 60-degree longitudinal wave search unit obtained 5.5% additional total coverage of the downstream side of the weld. Line number 6-Sl-131, is 1,500 lb., Type 316 seamless stainless-steel piping, with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength.
Weld SW-8 (12"-Sl-69), Safety Injection System Class 1, was a limited examination (87% coverage) due to an adjacent support at either side of the pipe, limiting upstream scans. The weld is in the piping from the Accumulator to the C-Loop Cold Leg. An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 3% additional total coverage of the upstream side of the weld. Line number 12"-Sl-69 is 1,500 lb., Type 316 seamless stainless-steel piping with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength.
Weld 18 (6"-RC-21), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the elbow-to-branch configuration,
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 58 of 97 limiting downstream scans. The weld is at the inlet nozzle from the Low Head Safety Injection system into the Reactor Coolant system hot leg (29"-RC-7).
An additional "Best Effort" (non-Code) scan with a 60-degree Longitudinal search unit obtained 9% additional total coverage of the downstream side of the weld. Line number 6"-RC-21 is 1,500 lb., Type 316 seamless stainless-steel piping. Weld 18 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. Weld 18 is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configuration.
Weld 27 (29"-RC-7), Reactor Coolant System Class 1, was a single-sided examination (63% coverage) due to the loop stop valve-to-pipe configuration and instrumentation and drain lines, limiting upstream scans. The weld is on the Hot Leg downstream side of the C-Loop loop stop valve. The loop stop valve is cast stainless-steel ASTM A351-TP304, and the piping is centrifugally cast stainless- steel material conforming to ASTM A-351 CF8 with cobalt content not exceeding 0.20% and silicon 1.00% maximum, with Type 308 weld filler material.
Weld 4 (14"-RH-1), Residual Heat Removal System Class 1, was a single-sided examination (50% coverage) due to the pipe-to-valve configuration at valve 1-RH-MOV-1701, limiting downstream scans. An additional "Best Effort (non-Code) scan with a 60-degree Longitudinal search unit obtained 25% additional total coverage of the downstream side of the weld. Line number 14"-RH-1 is seamless stainless-steel A-376-TP316 piping constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75 ksi minimum tensile strength. The Valve 1-RH-MOV-1701 body is ASTM-A-182
- F304 material.
The NAPS1 RI-ISi Program is based on ASME Code Case N-716 as identified in approved request N1-14-Rl-001. The subject limitations have been evaluated as acceptable, with no impact on risk analysis, and no further actions necessary to provide reasonable assurance of pressure boundary leak tightness. Weld SW-31 also received surface examinations. The subject welds are included in the Class 1 pressure boundary and therefore receive visual examinations at the beginning of each refueling outage as part of the Boric Acid Corrosion Control Program and VT-2 visual examinations at the end of the refueling outage once operating pressure and temperature is achieved before unit startup.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams Page 59 of 97 5.R3 BURDEN CAUSED BY COMPLIANCE The physical configuration of these welds, pipe-to-valve, pump-to-pipe, weldolet-to-pipe, lugs and clamps, adjacent supports, and elbow-to-branch connection, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further action can be taken to enable better examination coverage without destroying the component.
6.R3 PROPOSED ALTERNATIVE AND BASIS These welds were selected because they were determined to be High Safety Significant with no specific active degradation mechanisms. Selections were made based on plant specific operating experience or history of examination, weld repairs, random selection across different pipe sizes and configurations, and radiation concerns. Inspection of these particular welds is considered the best choice for meaningful examination results.
It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. 100% of the pipe-to-valve welds were volumetrically examined from one side. No indications were discovered. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. In addition, the Class 1 welds receive a visual examination during the system leakage test performed at the end of each refueling outage. As a result of the completed examinations, any pattern of degradation should be detected, thereby providing reasonable assurance of operational readiness.
The purpose of the inservice inspection program is to assure the structural and pressure-retaining integrity of safety-related nuclear power plant components in accordance with the rules of the ASME Section XI Code and the requirements of 10 CFR 50.55a. Although Dominion could select only weld locations where greater than 90% examination coverage is possible (when available based on selection criteria), meeting the purpose of the Code requires selecting a mix of not only piping-to-piping welds (where essentially 100% coverage is more likely), but also piping-to-valve welds, piping-to-pump welds, piping-to-vessel welds, socket welds, nozzle-to-pipe welds, etc. The
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 60 of 97 ASME Code allows only 50% Code coverage for single-sided examinations.
In cases other than most piping-to-piping welds, the majority of weld examinations are considered single-sided examinations.
The risk-informed weld limitations are considered in ASME Code Case N-716 periodic updates to the Risk-Informed Program Plan, where the program is reevaluated to determine if any changes to the examination selections need to be made, including additional examinations if they are warranted. The limited examinations identified in this request have no impact on the change-in-risk evaluation for the third period, and no new examinations were added as a result of these limitations.
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-1 Page 61 of 97
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-1 Page 64 of 97 Report No: UT-13-047 Summary# Nl.Rl.20.029 Pg. 4 of 4 Prepared by: W. Thomas Date: 9/22/2013 Weld Number 1 Weld Width 0.9" Thickness 0.906" Weld Length 27,09" 2 1 0 2 1 I
,--,,:;;;:=,_ _ FLOW 0.302"HTX 0,95"\NITH =0.287 SO. IN. =REOJIREO EXAM AREA EACH SIDE OF WELD 1
~ EXAMINED 100% 0: THE REQOlREO EXAM AREA U& SIDE AX ANO CIRC DIRECTION, EXAMINED 0.1 SO. IN. OS SIDE AX DIRECTIOt,t .11.287 =0.35 X 100 = 35%
EXAMINED 35%0F 1HE REQUIRED EXAM AREA OS SIDE AX DIRECTIOH BESTEFFORT, NO EXAM OS SIDE AX DIRECTION FCR 65% ct' THE REQUIRED AREA.
Examination Volume Dimensions - Height 0.302" length 27.09" Width 1.9" Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage)
ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Circ 45/60 100% 100% 0%
60L *35%
Code Coverage Total I 50%
100+100+0+35=235/4=58.75 *Best Effort coverage (Max 25%} Total I 8.75%
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- 1) Code Coverage refers to the maximum percentage of the required examination volume that is effectively examined with the qualified examination procedure.
- 2) Best Effort Coverage refers to the required examination volume past the weld centerline that ls examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.
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.Work Order No.:
R*A/R1.2.0 59102983133 Location:
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- 0 Drawing No.: 11715*WMKS-0109G*1
Description:
.PUMP-PIPE wI I\)
System ID:
RC Com ponenI ID: 11715*WMKS-0109G*1/271/2-RC-9 / 33 Size/Length:
1.5" / 85" Thickness/Diameter: 2.25" I 21.5" L.imltalions: No upstream scan du& to pump to pip& eorifiguralion. Start Time: 0932 Finish Time: 1000 lnstrumeofSetllngs Search Unit Cal. Time Date Axial Oriented Search Unlt Serial No.: 140723507 SeriilfNo.: 021N2J Checks Calibration S!gnal Sweep Sound Path Manufacturer: Olympus Manufacturer: i
--10 Screen Div. = 7.20 in.of Calibtation Block Sound Path Type; RG*174 Length: L No. Conn.: 0 Type:
Mfg.:
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Cal. Block Ni;>. ,VGB-33 Scan Coverage ...,.
RafeN111cefSimulator Block Upstream O Downstream@ Scan.dB: 6&.0 Referenc:t Block
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Thickness 2.580" Dia.: 0 Gain Signal sweep 5' cw~ CCW~ ScandB:~ Serid.No.: 05-6533 dB Reftector Amplitude% Divisron Sound Path Cat. Blfo.; Temp * ..!!.. Temp. Toof: 1076BGCY - - Type: :J Exam Surface: 00 SS Rompus Block 50.0 FSOH 65% 1.5 1.oson ro Comp. Tim,p. .!!._ Temp, Toof: 1076BGC\'
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Comm8!11S: Search unit #2 of tandem unit SN
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Results: NR1 ~ RID Geom O a wedge SN
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Date Date 0 0 Examiner Level II.POI a. C1 CD Fuechtman11, Gary P 9/2012016 rA°::::!.
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-2 Page 66 of 97 Report No: UT-16-072 Summary# N1.R1.20.098 Pg. 2 of 2 Prepared by: W. Thomas Date.: 9/23/2016 Weld Number 33 Weld Width 1.5" Thickl)ess
2.25" Weld Length 85" 2 0 j 2 I J 1 I CL 45 45 PIPE PUMP FLOW EXAMINED 100% OF THEREQUIREDVOLUMEAXIAL DIRECTION NO CIRC EXAM US SIDE DUE TO CONFIGURATION Examination Volume Dimensions.- Height 0.75'! tength 85" Width 2.5" Coverage Summary Required Scans (each ha.sa Weighingfaci:or of 100forcomplete coverage}
ANGLE UpSt-Ax UpSt;eirc DnSt,Ax Dost-Cir~
.45 1Cl0% 0%
100% 100%
Code Coverage Total I 75%
loo+100+100+0=300/4=75
- Best Effort CoveragefMax 25%) Total I N/A Notes:
- 1) Cm:te Coverage refers to the maximum percentage of the required examination volume that is effectively examined with the qualified examination procedure.
- 2) !rest Effort Coverage refers. to the required examination volume past the weld centerline that is examined inthe axial beam direction with an Appendix VIII demonstrated procedure forsingle. slded coverage.
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-3 Page 68 of 97 Supplemental Report Report No.: UT-16-086 P?ge: 2 of _3_
Sµmmary No.: _N_1_.R_1_.2_0_.1_01_ _ _ _ _ _ __
Examiner: Fuechtmann, Gary P ~ Level: ti-POI
. Examiner: Popp, Darrell J. Cf Level: II-POI Other: NfA Level: NIA Comments:
S.ketch or Photo:
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Additional. Supplemental Data
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-3 Page 69 of 97 Report No: UT-16--086 Summary# N:LR1.20:101 Pg. 3 of 3 Prepared by: W. Thomas Date: 9/22/2016 Weld Number Weld Width 2.5" Thickness 3.2" Weld length 80"'
EXAMINED*ffi0% OF"llle,REQUIRED 110tUME AJO,IL;IJ!l'<ECT!Ctl NOCIRC EXAM BRANCH SIDE El<amination votume- Dimensions.~ Height 1.07" Length Width 3.5" coverage*summarv Required ~ans (each has a weighingfactor of 100 for complete coverage)
AN.G.LE Upst.:.Circ DnSt-Ax DhSt.:.circ 45 100% 100% 100% 0%
Code coverag¢Total J 75%
100+100:r100+0=300/400=:75.
- Best Effort t:ov~rage (Ma~:25%} Total I N/A Notes:
l) Code Coverage refers to the.maximum percentage of therequired examination volume that is effectively examined with the qualffied examination procedure.
2} Best Effort Cover.ige refers to the required. exarrimati9n volume past the weld centerline that is examined 1nthe axial beam direction with anAppend~ VIII demonstrated prc,cedure for single sided cov~rage. ... . 9.531
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams ENCLOSURE R3-3 Page 70 of 97 Liquid Penetrant.Examination S1te,rtJntt NAPS
1 Outage No., . N1R2.5 Summary ;,jQ,:
N1,R1.20.101 Procedure fw,I,! _ _ _ _1_ _ __
W orkS ~ AU.G Work Ordm' No.: '910~1.33 1 or
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Udd flashlight lot fflumlflation, Charac:t.$t Raolution C4ffl:I: DOM-2016-1)163.
RIO EwlO NfA NIA Examiner ~l!l I!
Shelton, Jaimes R.
E'mmlnor ur.:el ti Th~!*ffl. er.nton R.
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Final cal. 0449 3116/2015 Rap.Ral!\l:: Allt:am Batch: 12J066 A:Y., Gaan (dB}, 52.2 Circ. Gm.tl {dB)c NIA Sean:ll lJnlt Cati,le Type: Sonll4:e,ch z)>
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Summary No.: N1.R1.20.121 Examiner: Gatica, John E.
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rct Period Limited Exams ENCLOSURE R3-4 Page 76 of 97 Report No: UT-15-030 Summary# Nl.Rl.20.121 Pg. 6 of 6 -----
Prepared by: W. Thomas ~
Date: 03/26/2015 Weld Number SW-7 Weld Width 1.1" Thickness 0.75" Weld length 20.75" 0 2 FLOW I
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.25" Hf X 1.0S"WIOTH" ,26 SO. IN, X2D.7S' LENGTH= 5.4CU. IN." REOUIREO 1/0LUME
&. NO EXAM 0.!.ll SO. IN X 10.7S'LENGTH ~ .1075CU. INOUETOCLAMP
.10751 5.4"' 0.02 X 100 = 2%
El.BOW EXAMINED 100% OF THE REQUIRED vctUME US SIOE EXAMINED 0.12 SQ IN. OS SIDE fJiX DIRECTION BEST EFFORT FOR 10 IN.
X 10" 1.:1 cu IN/ SA= 22* 100,. 22%
~ NOEXMI .14SOIN X 10"LENGTH= UCUIN,/5.4" 0.26X 100" 26%
Examination Volume Dimensions - Height .25" Length 20.75" Width 2.1" Coverage Summary Required Scans (each has a weighing factor of 100 for complete coverage}
ANGLE UpSt-Ax UpSt-Circ DnSt-Ax DnSt-Circ 45/60 100% 100% 50% 48%
60l *22%
Code Coverage Total I 74.5%
100+10o+72+48=320/4=80
- Best Effort Coverage (Max 25%) Total I 5.5%
Notes:
- 1) Code Coverage refers to the maximum percentage of the required examination volume that is effectively examined with the qualified examination procedure.
- 2) Best Effort Coverage refers to the required examination volume past the weld centerline that is examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.
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Repoct No.: UT-16'0911 0
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- 0 Cede: 21lCl4 Editlon Ca1Jl!em: R..Al'R.'l .20 Loc:a~:
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SI CamponenI ID; 117154IIIMKS-4l11.3C..3 J 12"51"69 / SW-8 Slze/1.englb; 12' / 4il..S- Tuici;nesslOiameter: 1. ns* , 1.2*
Limit.alioos;: Eii:am llmite,a cfue 10 supJJ()rt. S&a NOE-RI 96,,,001 for previous dam and T&iC. 6ta!l Trme: 1020 RlishTime: 1028 l~rument: Sallings Sfrarcn Unit Cal. Time Date .Axial Onef\ted SHrch Uni!
Serfs! No.:. t31.XKD3 Seirlal No.: ll0i'1Dl Checks D!Lbral:lon ~ S'll<eep SOII.IOO Path Mal'l4lfacturer. l<nu:tkmmer Mamaewter: KSA lnillal~ 01155 !/Ul201& Relledl'.I!' .Arnpli!ude % Owlslon Mor:k!!: USN GO SW Lm.earity: L-11Ul23 Size<: UO" Mode!: Comp-G Inter. Cat. 102& 9J23/.2'016
'U" 10 lilotffi 811> 5.5 2.696" o.y; a.:,,1'& 5i$ Rarv,iie: s.oo* F~: 2.25MHz: Center F,eq.: NIA Inlier. Cal. 1'CJ2t m3/2016 M't!Cali'Vel: P1*Jer iype: lnter:Cat. HlAi
.1235 in/ps Sq~ ExamAngllrt: &Ir SqtsfnlAnp: NIA Flnat Cal. 1223 912lr2016
- Damping:* 5all Ofnns Rejett: 0% Measured *Angle::
PFW: AulOHig;h StJ Fr,eq,.,: USMIHZ &i!,Point
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- r::if Shear Efement$: Single Couplant Fooquertcy: 2;2$MH% Reclify: Fvllwa11e - Cal Batdt: 1Ul)6S Cfmumlerel'ltfal Oriented Search Unit Crig.: Sfngle Forus: NIA '
Voltage: 450 NseW!dlh: m T>'Jllil: Sonotteh Calt!ratm Signal Sweep Shape: Rournd Contoor. Rellednr Arnpllrude % OiwSKll'I Sotind Path WA Mfg..: SONOTECH Wooge St)lle: MSWQC NIA Ax- Gaii:I {dS): !3.0 Circ. Gain (dB): NIA Elfillll'l Bmo:h: 12JOS1l Searcti Uni! Cable
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cwo CCW0 :SoandS; ~ . Serial No.; OH535 dB Reflecl:a Amp!Jtude% OiM:slon Sotl>l'ldPat!l Caf. $/k. Temp. 2!:. Temp. Tool: 07 Exam Surf!s!*- 00 TYT,lfr. SS Rompd Btor:k 33.0 fSUH 64 :u1 1.461"'
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R11:i0,~la lndlca.lion(s): Yes NoRii {If Yes, Ref. Attachedll11rasornc 1111.licalioo Raport.) w Resulls: NRJ li2J RIO GeomO Coolmems.: NONE a.
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~J>'1Domi11ion' Site/Unit: NAPS 1 Procedure: 'ER-AA*NDE-UT-802 Outage No.: N1R25 r 0
Summary No.: N1.R1.20.150 Procedure Rev.: 4 Report No.: UT*16-098 (/)
C Workscope: 1SI Work Order No.: 59102983133 Page: 3 of 5 ::0
-- m Code: 2004Edition Cal./Uem: R-A/R1.20 L,ocation: RC216
- 0 Drawing No.: 11715*WMKS.0113C*3 Descrlplion: ELBOW>PIPE w I QI System ID: St ComponeIIt lD: 11715-WMKS.0113C-3 f 12-S1'69 f SW-8 Slze/Lerigth: 1.2" 1<10.s~ Thickness/Diameter: 1.125" ! 12" Llmilations: Exam limited due to support. See NDE.i:l# 96.001 for pravious data and T&C. Slartnme: 1029 Finish Time: 1032 Instrument Settings Search. Unit Cal. nma Data Axial Oriented Search Unit Serial No.: 01XK03 Serial No.: 06-110 Checks Calibratibn Signal Sweep Sound Path Manufacturer: Krautkramer Manufacturer: RTD tnltil31 Cat. 0712 912312016 Reflector Amplitude% OMsion Model: USN 60 SW Linearity: L-16-023 Siz.e: 2l10X18} Model: TRL2-AUST Inter. Cal. 1029 9/23/2016 1.S" ID Notch 81 s.s 2,731" Delay; 9.5278 µS Range: Inter. Cal. 1032 9/2312016 5,0" Freq.: 2.0MHZ Center Freq.: NIA Inter. Cal. NIA M'llCaWel: .2280 in/pS Pulser Type: Square Exam Angle: ao* Squint Angle; 3*
Final Cal. 1226 9!2312016 Damping: 500.0hms Reject: 0% so*
PRf: Auto High SU Freq.: 2.0MHZ Measured Angle:
Exit Point 0.4" Mode: L*WAVE
- of Elements: 2 Couplant Frequency: 2.0MHz Rectify: Fullwave - - Cat. Batch: 12J066 Circumferential Oriented Search Unit Conlig.: 0-SBS Focus: F0.0.9" Voltage: 450 Pulse Width: 250 Type: Sonotech Calibration
- Signal Sweep Shape: Rectangular Contour; Reflector Amplitude% Division Sound Path FLAT Mfg.: SONOTECH Wedge Stytia: Integral NIA Ax. Gain (dB): 52.2 Circ. Gain (dB): NIA Search Unit Cable Exam Batch: 12J066 z)>
Sound Path Type: Sonotech 10 Screen Div.=
-- 5 in. of Calibration Block Type: RG,174 . Length: 6' Scan Coverage No.Conn.: 0
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Thickness 2.25" Dia.:
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cwo CCWO Scan dB:~ Serial No.: 05-6535 dB Reflector Amplitude% Division Sound f>alh ::::,
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Recordable lndication(s): Yes O No~ (If Yes. Ref. Attached Ultrasonic Indication Report.) (,.)
so* RL used to examine far side of the weld in limited a Results: NRI GZi RI 0 Geom D Comments:
'"O areas. (D Percent Of Coverage Obtained > 90%: No ReViewed Previ0l1s Data: Yes ~- 0 (J) 0 0
- 0. C") (D Examiner Level lll*POI Signature Date r " ~-
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Thomas, Travis W. 9/23/2016 s:u3r+-
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Other level NIA Signalure Date comc.nN ox??
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-5 Page 80 of 97 Supplemental Report RepQrt No.:
UT-16-098
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-5 Page 81 of 97 Rewrt No: UT~16-098 Summary# K1.R1.20.150 Pg.. 5 of. S . ~*UN~
Pteparedby:W. Thomas ~
Date: 1!)/l/2.016 Weld Number Weld Width 1.2" t!<'t~t~-~---
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~\J!fline tfmt ls examined in thii' mcial Imam diredion wfth.anAppenewt \llU demctl$Uli~p~b':hleiiidedcaw~
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-6 Page 82 of 97 J
m UT Calibration/Examination z 0
Proeedurr;1: ER*AA-NDfMJT,802 r-
. . . .NW Slttl/tJnlt: NAPS 1 Outago No.: N1R22 0 CJ)
SummoryNo.: N1,R1.20,180 Ptooedum Rew.: 2 ReQOrt No.: UT*12.087 ,
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Work11eol)Q: 1st Work Order No.: 119102422878 Page: 2 of 5 ::0 m
Code: 2004Edltlon CatJitom: R-A/'R1,20 LaQtion: C loop ::0 OlilWlng No.;
w 11715*WMJ<S.0103AD Oew!pUom Elbow to Dmnch I en Systom 10:
Limllatlona:
RC Component tO: t171S+WMKS4'J103AD / 6-RC*21 / 18 SJnglo Sided Aocou du* to Elbow to Nonie configuration i!i!X(!Jl;angl!l; o.ur 120.n~
Start Tlmo: 0938 Thlelin"s/Olamolw:
Finish Time:
o.710" 1a.p*
09!12 ln11trument S0ltlng11 S011rchUnl1 Clll, Timo Dato Axlal Orlental11d Searoh Unit !
Ser!al No.: 01!11124211 SertalNo.: 01CLMV Choek11 Callbmtion Signal Sweep Si>undPat/i Monufac!uron PanamotrlOJ Man11f11eturer: Kl3A 1nma1ca1. 07111 04!10/2012 Rffllector Amplitude% OM!llon j Modal: EPOCH4 Linearity: L*124'l08 Sile: o.37&* Model: Com[t! lntllf, Cal. 0938 04f1il/2012 1*NOTCH 60 7,2 1.818" Ool11y; 1,1HIJ,tc Rffngo: z.so* Froq.; 2.211 MHZ Center Freq.: NIA lnoor.Cal. NIA NIA Inter.Cal, 0952 04/10/2012 M'UCalNel: .1231 111/&oe Pulsir. Squaro Exam Angle: 1111* Squint Anglo: NIA Flnol Cal. 1146 04/10/2012 I Camping: 40oohma Rojoct 0% Measured Anglo: ~ Mod8: Shear R11p. Raio: AUlo Freq.: :LOO Co11plant li:xit PO!nl: o.u* # of Elements: 1 Flllor: 0.8*3,Q Mode: Ful!wave N;:- Cal. Botch: 07220 Clrnumfott1nU11I Orlontiltad Sntch Unit Conlig,: Slngfo FOCI.IS:
Typo: soundSafo C.lfbrallon Signal Swoop Voltage: Max Other: NIA Shap1>: Round Contour.
NIA Mfg.: SONOTECH Refloelor AmpTirudo% OMslon So11nd !'I oth Wedge Style: MSWQC NtA
~Gllln(dB): 23,0 Clrc, Gain (dB): NIA Exam Batch: 07220 Surch Unu Ctblo i z)>
Typo* Sowdsar, u
-10 SCl'etln O!v. *
-- In.of Catlbnitlon Block Sound Path Type: RGi14 Length: &' No, Conn.: o
$can CovoraQo
- - Mfg.:
SONOTECH i
I
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Cal. Block No,: 084!114 Roforenoe/Slm11fator Block Upstream~ DownstroamQ Scan dB:~ R11f11N1nco Block Gain $11)11111 Sweep ~
Th!cknoas; :us*
car. 81k, Temp.:,.!!_ Temp. Tool:
Ota.: 0 Hl77BGCY cwo CCWQ Sean dB: NIA Sttrt11I No.: 05-82159 dB Ro1l~cr AmPlltut:111% Olvltili'.111 Sound path :,
ExamSulfllco: OD - Type: SS RomEua Block 23.0 ;tSDH (II) (1,0 1.ff(IS* ct Comp. Temp.: ..!!.. Temp.Toof: 10'i'1SGCY S11t1eeo Condiucm: Ground Smooth NIA ~
ru i
( Ullri!IJ(lnlc lndteation Report) <,.)
Re11utta; NRI S!J RID GIIO!!I D Commenm: Nono a.
"'\J POl'Ci!nt Of ~ e Ol>til!ned), 90%; No Rovlcw~ Previous 0111a: Vos CD
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II r-Site/Unit: NAPS Procedure: ER-AA-NDe*UT.S02 Outage No;: N1R22 0 CJ)
Summaiy No.: N1.R1.20.160 Proced\1!'8 Rev.: 2 Report No.: U'f-12-087 C:
Code:
Drawing No.:
WOrkSCQpe; 2004 Edition 11715*WMKS.0103AD ISi Cat.lltem:
Work Order No.:
R-A/R1.20
Description:
Elbow to Branch 59102422876 Location: C loop Page: 3 of
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- 0 w I O')
Sy,tem 10:
+--
RC Com ponant 10: 11715*WMKS.0103AD I S.RC..21 / 18 Sllelt..ength: 0.85" / 20.85" Thickness/Diameter: 0;119* I ~.a*
Limitations: Single Sided Access due to Elbow to Noule conflguratlon StartTime: 1009 Finish Time: 1028\
Instrument Settings Search Unit Cal.
i Time Date Axial Orientated S.eareh Unit I Serial No.: 081624211 Serial No.: 06-108 CheGl<s I Calibration Signal SWeep SoundiPath Manufacturer: Panamotrles. Manufacturer: RTD tn!tla!Caf. 0753 04/10/2012 Reflector Amplitude% OM11lon !
Model: ePOCH4 tlnearity: L-12-008 Slza: 2!8X14} Model: TRL2*AUST Inter. Cat. 1009 04/10/2012 1"NOTCH 80 7.1 1.7~8" Delay: 8.5011see Range: 2.110* Freq.: 2.0MHZ C<<lter Freq.: NIA Inter. Cal. NIA NIA i Inter. Cal. 1028 04110/2012 M'tl Ce!Nel; Damping:
.2244 ln/seo 400ohms Pulser:
Reject:
Square O,o/(1 Exam Angle:
- so*
Measured Angle: ~ Mode:
Squint Angle: NIA LONG.
FlnalCal. 1028 04110/2012 Couplant I
I I
Rep. Rate: Auto Freq.; 2.00 EXlt Point: 0.35" # of Elements: 2 Fllt&r: 0.8
- 3,0 Mode: Fullwave Conflg.: D*SBS Focus:
- . - Cal. Batc!J:
FD.0.6 07220 Circumferential Orlentawd Search Unit !
Voltage: Max Other: NIA Type: SoundSafe Cafibratlon Signet $Weep I Shl!pe: Rectangular Contour: Reflector Amplitude% DMslon SoundJPalh FLAT Mfg.: SONOTECH Wedge Style; MSWQC NIA I AA.Galn(dB}: Clrc. Gain (dB): NIA Exam Batch: 07220 38.3 Search Unft Cable Type* SoundSafe I
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10 ScN!en Div. =
-- - 2.8 In.of Calibration Block Sound Path Type: RG174 Length: 6' No. Conn.: O Scan Coven.ge
- - Mfg.:
SONOTECH I
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Cal. Block No.: OMS14 Upstream D Downstream (i!I Scan dB: 2!::._ ReferenC9 Block Rafa,..nco/Slmulator Block I I ~
Gain Signal Sweep :::;
Thlckn811s: 2.25" Cal. Blk. Temp.:...!!_ Temp. Tool:
Dia.: 0 cwo CCWO Scan dB:~ SenatNo.: 05-8258 dB Reflector Amplitude% Division Sound\Path
- I 1077BGCY llil<lffll Surface: 00 Type: ss Rompua Block 32.3 .7SOH 85 5.4 1.516" CD Comp. Temp.: 67 Temp. Tool: 10778GCY Surface Condition: Ground Smooth I
I <
Rocordable lndlcatlon(a): veso No fi!1 (If Yes, Ref. Attached Ultrasonlc Indication Report.)
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R&S\Jlts: NFU ~ RIO Geom D Comments: None a.
""O Percent.Of Coverage Obtained > 90%; No Revl-ed Previous Oata: Yes CD Examiner Stevermer, Aaron J.
Level II-POI Date I Rellit;!Wef 04/10/2012 r.J I "1':J.-.fl'"'A
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-6 Page 85 of 97 Report No.: __U_T_-1_2-o_a1__
Page: 4 of 5 Summary No.: .;.;;N.;.;1*.;.;R.;.;1*...;..20.;.;..1_6_0_ _ _- r_ _ __
Examiner: Stevermer, Aaron J. pf,,, Level: ll*PDI Date: lf *I 7* la/2...
Examiner: N/A 0ther. NIA Level; Level:
NIA N/A Date:~
Date:~
Comments:
Sketch or Photo:
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Additional* Supplemental Data
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-6 Page 86 of 97
-*-* IIJ!II ***---.. >. .. **** ReporrNB: oI*I2*087' * * * * *- *-~---
summary# Nl.Rl.20.160
,Dominion.. Pg.S of 5 Prepared by: W. Thomas - ¢ " ~
Date: 4/17/2012 Weld Number 18 Weld Width .85" Thickness .14" Weld Length
. . rLOW
.925kWO X ,247" HT*
ttf'S v~,'i/) - - --
jl1f'SQ IN AEQUIREO VOLUME UF'ST ANO CINSi' SIOE
- 2l
~ EXAMINED 100% AEQUlFtEO VOLUME UPS'T S!Oe AX ANO CIRO OIAISCTION Examlnaticm Volume Dimensions - Height .247" Length 2 .8" Width 1.85" Coverage Summary Required Scans (each has a weighlns factor of 100 for complete coverage) I ANGLE UpSt*Ax UpSt*Clrc DnSt*Ax onst-Clrc 45 100% 0%
60 100%
60L *.M"% 35 ii ICI :,
C .,. - Total I 50%
1oo+1oo+o+Jn=232/4=S8' sq
- Best Effort Coverage (Max 25%) Total I A% 'I~
Notes:
f&)
tzi1 ode coverage refers to the ma)!lmum percentage of the required examination volume
- 5 that is effectively eicamlned with the qualified elCilmlnatlon procedure.
- 2) Best Effort coverage refers to the required examination volume past the weld centerline that is examined ln the axial beam direction with an Appendbc VIII demonstrated procedure for single sided coverage.
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NAPS _ __;,__ _ _ _ _ __ Procedure: ER*AA-NDE-UT-700 Outage No.: N1R25 r-0 Summary No.: N1.R1 .20.327 Procedure Rev.: 0 Report No.: UT-16.079 en C:
Workscope: ISi Work Order No.: 59102933'133 Page: 1 of 3 ;;o m
Code: 2004 Edition Cat.fltem: R*AIR1.20 location: C-LOOP ;;o Drawing No.: 11715-WMKS.0109G-1
Description:
VALVE-ELBOW w I System ID:
~----------------------------------------------
RC Component 10: 1171 S-WMKS-0109G-1 / 29-RC*7 / 27 Size/Length: 2.00° / 111.1 o~ Thickne,ss/Dlameter: 2.58" /29.0
Limitations: No upstream scan due .t<> valve to' elbow configuration, 1 drain and 4 instrumetnaOon lines Start.Time: 0204 Finith Time: 0240 IM!rument SettinlJS Search Unit Cal. Axial Oriented Search Unit Tim& Date Serial No.; 140723S07 Serial No.: 021N2J Checks
.Calibration Signal sweep So.undPalh Manufacturer: Olympus Manufacturer: KBA Initial Cal. 0010 9/18/2016 Reflector Amplitude% Division Model: EPOCH GOO Linearity: l..*16.020 Size: 1.0" Model: Comp-G l Inter. Cal. 0204 9/1812016 IDNoteh 80% 5.0 3.600" Delay: 13.830 µs Range: 7,200" Inter. Cal. 0240 9/18/2016 Fte(j.: 1.0 MH2: Center Freq.: NIA M11 Ca!Nel: 0,2330 in/µs Pulser: Square Inter. Cal. N/A Exam Angle: 45* Squint Angle: NIA Damping: Reject: 0%
Final Cal. 0425 I 9/1812016 400!:l Measured Angle: 45* Mode: Longitudinal Rep.Rate: Auto Freq.: 1.0Mhz Couplant E1<it Point 0.90" # of Elements: 1 Filler: 0,2 *1.2 Mht Mode: Fullwan * - - Cal. Batch: 12J066 Cireurnfimintial Oriented S&arch Unit conlig.: Single Focus: F.O.
- 2.44" Vollege: 400 Other: NIA Type: Sonoteeh Calibration Signal Sweep Shape: Round Contour: NIA Reflector Amplitude% Division Sound Path Mfg.: SONOTECH Wedge<Styla: sws NIA Ax. Gain {dB}: 60.0 Circ. Gain (dB}: NIA Exam Batch: 12J066 Search Unit Cable z)>
--10 Screen Div. = 7.20 in. of Calibration Bicek SouridPath Type:
RG ..174 Length: 6.' No.Conn.:
o Type:
Mfg.;
Sonotech SONOTECH "U
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Sean Coverage Cal. Block.No. VG~3 Reference/S!mulator Block ~
Upstream D [?ownstream [;?j Scan dB: ~ Reference Block s:
Thickness 2.580" Dia.: 0 Gain Slgnc1l Sweep CWR! CCW RI Scan dB:
- 66.0 Serial No.: 05-6533 dB Reflector Amplitude% Olvision Sound Path :::,
Comp.Temp.
Cal. Blk. Temp. 11* Temp. Tool:
~ Temp. Tool:
07 07 Exam Surface: 00 - Type: ss RomPJ.!s Block 50.0 FSOH 85% 1.5 1.060" co
- 11::,u./~~D i'""~ltlnn" Ground Q)
(s) D ~ Ultrasonic Indication Reoorl.l w CQ!llments: Search unit #2 of tandem unit SN
- 021 N29. Tanclem a.
Results: NRI RI RID GeomO wedge SN
- 389..0713*510. Se:e attached for limitations. "U (I)
Percent Of Coverage Obtained > 90%: No Reviewed Previous Data: NIA ::!.O 0 0 (/)
Examiner Date Data 0.. C') (I)
Level II.PD r;,;.-::!.
Zoltner, Brian D . 9118[2016 <-t,tS-:I~. "U -* (I) Q)
Q) 3 r+ -
Examiner , Level Date cc;::;:
(I) (I) 0 z z 0 Stevermer, Aaron J. 9118/2016 CX>o..:. :.
Other l13vel NIA Signature Date. --.J m CJ1 N 0 ><??
NIA - O> W 0 t03
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Dombdon' Page; C:
2 of 3
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Summary No,: N1.1~1.20.327 Examiner: -Z-o-lln:...e_r-.-8-ri-an_o.....,,7.,..*-hsZ~-=------- Level: 11-PDI Reviewer: *IJL,ty<'>...1\$ µN'IIC L_ Date: 'f *l.!.f* 14 a
~
Examiner: Stevermer, Aaron J, Level: 11-PDI Site Review: )~sP.$x.~n~~ Date:~1,,
Other: ...;N~l.!:?A~----------,.--- Level:~ ANII Review: ,,?# ~
..::..;....;._::;.;;.._.;:;;;... Date:~
Comments: There are 5 obstuct!ons on the pipe side of the weld, 4 being instrumentation lines and 1 drain line. The Instrumentation lines are located at 90°,
210*, 270° and 330" and the drain line is at 180° when looking with flow.
Instrumentation lines are 2.0" from the downstream toe and 4.1)" In length. The drain line Is 1.5" from the downstream toe and 6.0" In length.
Sketch or Photo:
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-7 Page 89 of 97 Report No: UT~16-079 Summary# Nl.Rl.20.327 Pg.3 Of 3 Prepared by: W. Thomas Date: 9/25/2016 Weld Number 27 Weld Width 2" Thickness 3.1" Weld Length 91.1" J!
I 27 45 PIPE VALVE LIMITED.~ OS .SIQE.~.DIRECTION DUI:: TO.INSJ'RUMl:NTATION ANQ PRAIN LINES= 22'.'
91.1 -22 = 69.1 / 91.1 =76%
NC CIRC EXAfv'I US SIPE.
Examination Volume Dimensions - Height 1..03" length 91.1" Width 3" Coverage Summary Required Scans.(eadl has a weighing factor oflOOforcomplete coverage)
ANGLE UpSt-A>c Upst.::arc DnSt:-Ax DnSt-Qrc 45 76% 0% 76% 100%
Code .Coverage Total I 63%
76+0+76+100=252/400=63
- Best Effort Coverage (Max 25%) Total I N/A Notes:
9531 l} Code Coverage refers to the maximum percentage ofthe required examination volume rfS:!i Gf th;rt is effectivefy examined with the qualified examinatkm procedure.
2:) Best Effort Coverage refers to the requited examination volume past the weld centerline that is ~:xamined in the axial beam direction with an Appendix VIII demonstrated*procedure for single sided coverage.
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'~.-ui'llott' Site/Unit: NAPS 1 Procedure: ER*M-NDE*UT*802 Outage No.: N1R21 0
Summary No.: N1.R1.20.419 Procedure Rev.: 1. Report No;: UT-10-212 en C:
Wo!'kscope: 1$1 Wolk Ord.er No.: 59101970331 Page: 1 or 6 :::0 Code: CatJltem: Location:
m ASME 2004 Ed. R*A/R1.20 RC216 Drawing No.: 1171S*WMKS:-0113A*1
Description:
Pipe to Valve ~ I co System ID:
RH Com ponent ID: 11715-WMKS-0113A-1 / 14-RH*1 / 4 Slie/Length: 1* / 44" Thickness/Diameter: 1,250" / 14.0" Limitations: Slngle sided examination due to valve configuration Start Time: 0921 Finish Tlme: 0936 Instrument Settings Search Unit Cal. Time Date Ax.lal Orientated Search Unit Serial No.: 01XK03 Serial No.: OOF1DL Checks Calibration Signal sweep Sound Path Manufacturer: Krautkramer Manufacturer: KBA Initial Cal. 0800 09{22/2010 Reflector Amplitude% Division Model: USN60SW Size: o.so* Shape: Round Inter. Cal. 092:0 09/22/2010 1.5" Notch 80% 6.0 2.111 Delay: 6.9862 Range: 3.535fl Freq.: 2.25 MHZ Style: Comp-G Inter. cat NIA Inter. cat M'II Ce!Nel:
Damping:
.1254 5000HM Pulser:
Reject:
Square 0%
Exam Angle:
Mode: - 45* # of Elements: Single Shear NIA Final Cal. 1030 09/22/2010 Rep. Rate: Auto High Freq.: 2.25MHZ Measured Angle: 45* Couplant Filter: NIA Mode: Full Wave Wedge Style: MSWQC Cal. Batch: 07220 Circumferential Orientated Search Unit Voltage: 450V Other: PW220 ns Type: SoundSafa Callbrallon Slgnal Sweep Reflector Amplitude% Division Sound Path Ax. Gain (dB): 15.1 Clrc. Gain (dB): NIA Search Unit Cable Mfg.: SONOTECH
- 1 Linearity Report No.:
Screen Olv. = .3535 in. of Sound Path L-10-032 Type:
Length: 6' RG-174 No. Conn.: 0 Exam Batch:
Type:
01220 SoundSafe NIA z
Calibration Block Scan Coverage Mfg.: SONOTECH
-0
(/)
ca1. atoc.k No.: 05-8513 Upstream @ Downstream D Stan dB: .E.:!_ Reference/Slmu!ator Block ~
Reference Block
~
Thickness: 2.25" Ola.: 0 CW@ CCW@ Scan dS: ~ Serial No.: 05-6534 Gain Signal Swe;,p Sound Path :T dB Reflector Amolitude% OMsion Cal. Blk. Temp.: :E:_ Temp. Tool: 1066BGCY Exam Surface: OD Type; SS Rompus Block 19 .7ttS0H 26% 2.9 1.0 :::i Comp. Temp.: ..!!.. Temp. Tool: 1066BGCY Surface Condition: Ground ct Recordable lndlcatlon(s): Yes O No@ (If Yes, Ref. Attached Ultrasonic lnd1cation Report.) <
~
Results; NRI@ RIO Geom O Comments: NOER 21010*'182 (.,J a.
Percent. Of Coverage Obtained > 90%: No_ Reviewed Previous Data: NIA -0 CD
- !. 0 Examiner Level II-POI Date' Reviewer Date 0 0 (/)
Muirhead, Ryan 09/22/2010 IA..L ."1i1'0:wt,1,S
- a. C1 CD
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- CD Ill Examiner Level II-POI Date m3--
Muirhead, Josie 09/22/2010 *?l-<<-l_.,.. ca ;::;: z z CD CD ~ ~
Other Level NIA Date (0 a. ....
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, . . .Sod' S,terunit: NAPS 1 Prtleeduru:: ER-M,:NDE*UT~sa2 Outage No.: N1R2:i r-0 Summary No.: f01.R1.20.41*9 Pre<:ed1.11<<1 Rev.: R:eport No.: UT-111-212 00 C:
Worll:scope:: ISi WQrit: On:!er No.: 59101'970331 Pagvr. 2 Ctf 6 ::0 Cod&:. Catlttem: R:-AIR1 .2:0 l.oca!lon, m
ASME 2004 Ed. RC216 i>ra11M,1 No.: 1171:S-WMKS-0113A-t Oesroptloo: Pipe to, ValYe ~ I co System 10:
R'H 0,~nenl 10: 1171S-WM!<:!.Ml11i3A-1.!' 14-RH*i 14 S.ZeA.~ng-0,:
t" /44..
StartTlm,e; Thir:kne111ll0'4ameter: 1.2:iilr 1* 1,ur l.imimlwn:.: Sl~le &!dad' Dllmd111111on due to wlva cc:mfl,guratlon 093:11 Finish llme: 0941, Tnstn.rme,nt Settings Search Unit Cal. Time Oalit Aldal Orlt~d Search Unit Serial No.:
ManJJfacttlfflt:
01XK03 Krautkramer Serial No.:
Manufacliurer:
OOH530 KBA Chec:its Initial Cat 0010 ~ o Calbralion Reftecitor Stgnm .
Amptit.u,r.kt %.
Sweep Dtllisroo
!Soulid Pillh Model; USN *111 SW Sl\Z\(t, o.50" .Shape: Rowm:t ln!er. Cal. 0.'937 ~ 1 0 t.5"~ u 2.1 Oe!ll't: '9.3194 Range: 5.oo* freq.: 2.25MHZ Style: Comr,-0 Inter. Cal. NIA M'll CaWet: .121'9 Pulsfll": Sq11111re exam Angl,e: so* # of E!emenls.: srn91e Inter. Cat HIA Damping: 5(1(1 OtlM Reject: 0% Mede: - Shear Final Cal. 1033 ~011)
Rep. Ra1e: A.ulo High Freq.: 2.25 MHZ Meaisurecl Aog!e: W Couplant Filter: WA Mode: Fllil Waw Wedge Sfyte: MSWQC Cat Saleh: C17220 C:lreumferontlal Orientated' Se.in:h Unit
'Votta,ge:
Ax. Gain {dB):
450 V 31 0th<<:
Cin:. Gain (dB!:
PW 220 ns NIA Sffrdt Unit Cablo Type; Ulg,;
S01i1rt1dSafe SOHOTECH Calibralion Refflector t S>gruil f llmjlllude %
I Sv.re:ep 01\/lsion Palh
_!_ ~ Oiv. .. ..!!.. in. of Sound Path Type: RG*174 Exam 8.111::h: omo NIA Unearily Report Ho.: L*10-032: Lenglh: 6' No.. eo~n1~u
0 A
Typ,e: SolJ!l'ldSafe z
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Scan CoYerage Mfg~: SONOTECH -0 Ca!lbratlon Block
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Cal. Block NQ.: 05-8513 Upsiream @* Oownsmm O St:00 dB.: ~ Referaru:.11 Blocil .....
Gain ~
Thiicitnessr. 2.21.i" Dia.: 0 CW@ CCW@ St:00 dB:~ Serial No.: OS-'6534 g.
dB Ca!. 81k. Temp.:.!!'.:. Temp. Toot fOti&'.BGCY Exam Swfacec 0.0 Type: ss Rompus Block :,
211.4 Comp. Temp.: .!!_ Temp. Toot 1ff68GCY SvriaoeComitioo: Ground! ct Reeontable lndfcat11>n{s): Yes O No @ (If Yes;. Refc Allill:hed Ultrasooic l(ldicaU(ltl Report.) <
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~ NRffi!J Rro ~o Coromelll!s;. Effeclive c~ge U$lng the 00" search unit hH been a.
verified by lhe preHnc:e. of ltlo weld roa-t respoose Pare.mt Of Coverag&.Obtiilined > 90%: No Re'!/lcwed .f'rallklus Data: WA wrlng lhe 1'q\J!fred s,c;iu. -0 CD
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Examlner Level lll.POI Datej Ra.,.ewer Da4a 0 0 v,
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Componoo1 JO; tt'l'11,,WMl<S*01i1~t {1,t.;RtM J.t Sin.gill lllido onml~on dn to llfflw confl;u,11U!!lft SizaiLMg{h;
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Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-8 Page 93 of 97
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-8 Page 94 of 97 Supplemental Report Report No.: _ _ u_T._10_-2_1_2_
Page: 5 of 6 Summary No.: N1.R1.20.419 Examiner: Muirhead, Ryan '2,..,_ Level:~ Reviewer. 1,,..u** '"iif..~s ~ Date: -,. z.'(
- 1,;,
Examiner: Muirhead, Josie Jtu.\ Level:. 11-PDI SiteRev'.ew~* ~~ Date: 7¢(./'.f"=>
Other: NIA
Level: NfA
~----
ANH Review: _ Date: /#h7#P Comments:
Sketch or Photo:
- *I wc..w:: J
' VALVE Additional - Supplemental Data
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams ENCLOSURE R3-8 Page 95 of 97 Weld Nurrlber 4 WelclWidlh Wekl Thlckrles$ Weld Length
%E:>'AMINl:01W%~RE)JSXAM\Ol..l,M;OSAXIALCRB..!1:)NBES!"~
Examination Volume Dimem.kms ~ Height f.U9"' length 44" Width 2."
ANGLE DnSt'-Ax OnSt-Circ "100% 0%
Notes:
- 1) Code Coverage ref'efs to lhe maximum oflhe ~red ~ n Wlume that JS ettedtvety !\Wlmlne!J With the e~rmnation prooodme.
- 2) Best Effort Coverage refer& to the raql.ilred examloalioo volume p;'lst the ward centerline that is examined in the axial beam direction with an Appendix vm deroon!.lrated rocedure for
- e sided cove
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 96 of 97 7.0 DURATION OF PROPOSED ALTERNATIVE The proposed alternatives in this request, if approved, will be applicable for the fourth 10-year ISi interval for NAPS1 which began on May 1, 2009 and ended on April 30, 2019.
8.0 PRECEDENTS Similar relief was granted in the Third ISi Interval, as follows:
- 1. Request N1-13-PRT-004-Part B granted for limited coverage for ASME Section XI Exam category B-D, Item No. B3.110 items.
- 2. Request N1-13-PRT-004-Part D granted for limited coverage for Risk-Informed examinations on welds similar to the current selections.
Although Fourth Interval Risk-Informed selections are different from those for the Third Interval, alternative requests were granted for examinations in similar locations with the same service conditions as identified in requests N1-13-PRT-004-R1 and N2-13-PRT-002-R1.
NAPS1 was granted similar alternative requests for Fourth Interval First Period Limitations in request N1-14-LMT-001 and Second Period Limitations in request N1-14-LMT-002.
NAPS2 was granted similar alternative requests for Fourth Interval First Period Limitations in request N2-14-LMT-002 and Second Period Limitations in request N2-14-LMT-003.
9.0 REFERENCES
- 1. ASME Code Section XI, 2004 Edition with No Addenda.
- 2. "North Anna Power Station, Unit No. 1, "Third 10-Year lnservice Inspection Interval Program, Relief Request N1-13-PRT-004, Part A through Part G," dated 1/7/2011 (ADAMS Accession No.: ML110060011)
- 3. North Anna Power Station, Unit No. 2, "Relief Request N2-13-PRT-002, Limited Coverage Examinations for the Third 10-Year lnservice Inspection Interval,"
dated 8/17/2012 (ADAMS Accession No.: ML12227A773)
Serial No.: 20-056 Docket No.: 50-338 NAPS1 4th Interval 3rd Period Limited Exams Page 97 of 97
- 4. North Anna Power Station, Unit No. 1, "Relief Request N1-14-LMT-001, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1,"
dated 8/30/2013 (ADAMS Accession No.: ML13234A353)
- 5. North Anna Power Station, Unit No. 1, "Relief Request N1-14-LMT-002, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 2,"
dated 1/10/2018 (ADAMS Accession No.: ML18005A190)
- 6. North Anna Power Station, Unit No. 2, "Relief Request N2-14-LMT-002, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1,"
dated 2/3/2015 (ADAMS Accession No.: ML15023A219)
- 7. North Anna Power Station, Unit No. 2, "Relief Request N2-14-LMT-003, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 2,"
dated 5/29/2019 (ADAMS Accession No.: ML19143A342)
- 8. ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds"
- 9. North Anna Power Station, Unit Nos. 1 and 2, "Fourth 10-Year lnservice Inspection (ISi) Program, Relief Requests (RRs) for Alternative N1-14-Rl-001 and N2-14-Rl-001," dated 1/21/2011 (ADAMS Accession No.: ML110050003)