ML102930299
| ML102930299 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 10/11/2010 |
| From: | Bajestani M Tennessee Valley Authority |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| Download: ML102930299 (21) | |
Text
Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 October 11, 2010 10 CFR 50.55a(g)(5)(iii)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 NRC Docket No. 50-391
Subject:
Watts Bar Nuclear Plant (WBN) Unit 2 - American Society of Mechanical Engineers (ASME) Section Xl Request for Relief WBN-2/PSI-1
Reference:
TVA letter dated January 29, 2008, 'Watts Bar Nuclear Plant (WBN) - Unit 2 -
Regulatory Framework for the Completion of Construction and Licensing Activities for Unit 2" Pursuant to 10 CFR 50.55a(g)(5)(iii), TVA is submitting a relief request for the WBN Unit 2 Preservice Inspection (PSI) Program.
One of the Actions Required for Licensing in Reference 1 stated, "TVA plans to submit PSI related relief requests on or before September 24, 2010." This letter satisfies that action. provides relief request WBN-2/PSI-1, which requests relief from the ASME Section Xl, Table IWB-2500-1, Examination Category B-A, Note 2, and Examination Category B-J, Note 4, requirements that the extent of examination "includes essentially 100% of (the:
Exam Category B-A only) weld length." The definition of "essentially 100%" is provided by both NRC Information Notice 98-42, "Implementation of 10 CFR 50.55a(g) Inservice Inspection Requirements," and Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds, Section Xl, Division 1," and requires examination coverage of "more than 90 percent of the specified examination volume" in lieu of "essentially 100%."
Examination coverage of greater than 90 percent was not achieved for the welds listed in the proposed relief request and the applicable coverage percentage is specified in the relief request for each weld. The examination coverage achieved for the subject welds in conjunction with acceptable construction code examinations provides reasonable assurance that unallowable flaws do not exist in the subject component welds and that the welds are acceptable for service.
Thus, an acceptable level of quality and safety will have been achieved and public health and safety will not be endangered by allowing the proposed alternative examination coverage in lieu of the Code requirement.
i4oql
U.S. Nuclear Regulatory Commission Page 2 October 11,2010 The electronic files of nondestructive examination (NDE) reports referred to in Enclosure 1 are contained on the enclosed Optical Storage Media (OSM). Enclosure 2 lists the electronic files and the file sizes.
TVA requests NRC approval of relief request WBN-2/PSI-1 by October 15, 2011, to support the PSI schedule.
There are no new commitments associated with this submittal. If you have any questions, please contact William Crouch at (423) 365-2004.
Sincerely, Masoud Ba*ssani Watts Bar 0 2 Vice President
Enclosures:
- 1. American Society of Mechanical Engineers (ASME) Section Xl Request for Relief WBN-2/PSI-1
- 2. List of Files Provided on Enclosed OSM cc (Enclosures):
U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381
Enclosure 1 TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT (WBN) UNIT 2 AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) SECTION Xl REQUEST FOR RELIEF WBN-2/PSI-1
SUMMARY
In accordance with 10 CFR 50.55a(g)(5)(iii), TVA is requesting relief from the "essentially 100%"
code coverage required weld examination volume. This relief request addresses ASME Code Class 1 welds with the Examination Category and Item Numbers as specified in this relief request. The examination limitations described in this relief request are inherent to the component design and manufacture of the installed components given the original construction permit date for WBN Unit 2 of January 23, 1973.
NRC Information Notice 98-42, "Implementation of 10 CFR 50.55a(g) Inservice Inspection Requirements," defined "essentially 100%" as "more than 90 percent of the specified examination volume." In Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds, Section Xl, Division 1," the ASME provided the same definition.
1.0 SYSTEM/COMPONENTS FOR WHICH RELIEF IS REQUESTED The Class 1 components for which relief is requested are listed in Table 1 along with information related to materials of construction, configuration and NDE results.
2.0 APPLICABLE CODE EDITION AND ADDENDA The applicable ASME Section Xl Code Edition and Addenda for WBN Unit 2 PSI is the 2001 Edition through 2003 Addenda as amended by 10 CFR 50.55a.
3.0 CODE REQUIREMENTS FROM WHICH RELIEF IS REQUESTED In accordance with 10 CFR 50.55(g)(5)(iii), relief is requested from the extent of examination requirements of "essentially 100%" for the following examination categories and item numbers from Table IWB-2500-1: B-A, B1.40 (note 2); B-J, B9.11 (note 4); B-J, B9.22 (note 4); and B-J, B9.31 (note 4). This relief request is applicable to the ultrasonic examination method associated with the subject examination categories and item numbers.
WBN Unit 2 has invoked ASME Section Xl Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds, Section Xl, Division 1." Code Case N-460 states, in part, "when the entire examination volume or area cannot be examined.. .a reduction in examination coverage.. .may be accepted provided the reduction in coverage for that weld is less than 10%."
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Enclosure 1 4.0 BASIS FOR RELIEF In accordance with 10 CFR 50.55a(g)(5)(iii), relief is requested on the basis that the Code required, Table IWB-2500-1, "essentially 100%" examination coverage is impractical due to physical obstructions and limitations imposed by design, geometry, or physical obstructions for the welds and associated components listed in Table 1.
ASME Section Xl, IWB-2200, "Preservice Examination," requires that "preservice examination be extended to include essentially 100% of the pressure retaining welds in all Class 1 components"; therefore, no alternate Class 1 welds are available for selection.
Compliance with the examination requirements of ASME Section XI would require significant modification of plant components to remove obstructions, redesign of plant systems/components, or replacement of components where geometry is inherent to the component design.
Weld profile sketches and coverage plots are included in the NDE reports attached to this relief request for the applicable welds in Table 1.
5.0 PROPOSED ALTERNATIVES WBN Unit 2 performed the ASME Section Xl Code required preservice volumetric examinations listed in Table 1 to the maximum extent possible utilizing certified personnel with applicable Performance Demonstration Initiative (PDI) endorsements and approved procedures.
For Examination Category B-J piping welds listed in Table 1, the examination personnel and equipment were required to meet Appendix VIII requirements as implemented by the Electric Power Research Institute (EPRI) PDI and mandated by 10 CFR 50.55a. The shear wave examination of the applicable stainless steel welds listed in Table 1, where access was limited to one side and the piping thickness is greater than 0.500", was supplemented by a refracted longitudinal wave examination. For those welds in Table 1, where access was limited to one side and the piping thickness is 0.500" or less, a supplemental 700 shear wave was performed.
For the Examination Category B-A RPV head-to-flange weld, W08-09, listed in Table 1, the examination personnel and equipment were required to meet Article 4 of Section V, except that alternative examination Beam angles may be used, as specified in ASME Section Xl, Mandatory Appendix 1, 1-2110(b). The Article 4,Section V examination was supplemented with an Appendix VIII qualified examination; however, no additional coverage was achieved or credited based on the Appendix VIII supplemental examination.
6.0 JUSTIFICATION FOR GRANTING RELIEF The welds listed in Table 1 were examined to the maximum extent possible utilizing certified personnel, qualified equipment, and approved procedures to meet the preservice acceptance standards of ASME Section Xl 2001 Edition through 2003 Addenda.
Surface conditioning of the subject welds was performed to the extent necessary to preclude a reduction in coverage associated with weld crowns, weld shrinkage, and surface roughness.
E1-2
Enclosure 1 Welds SIF-D199-05 and SIF-D199-06 had recordable root geometry identified by volumetric examination. Weld SIF-D197-05 had a recordable, but acceptable surface indication 1/8" in length located on the outside diameter valve side at the weld toe identified by surface examination. These three welds have not been in service and were acceptable to the construction code standards for installation. The examinations performed on these welds for both construction code and the limited coverage preservice examination, greater than 70% coverage minimum, are sufficient to ensure structural adequacy of the subject welds.
These welds also met the ASME Section III NDE acceptance criteria associated with construction, which for Class 1 butt welds requires radiography. The construction code radiography, while providing additional assurance of the structural integrity of the subject welds, is not qualified in accordance with ASME Section Xl, Appendix VIII, and cannot be credited for ASME Section Xl coverage. Additionally, the welds listed in Table 1 will be subjected to an ASME Section III pressure test prior to initial plant startup.
ASME Section XI, IWB-2200, "Preservice Examination," requires that "preservice examination be extended to include essentially 100% of the pressure retaining welds in all Class 1 components"; therefore, no alternate Class 1 welds are available for selection.
Compliance with the examination requirements of ASME Section X1 would require significant modification of plant components to remove obstructions, redesign of plant systems/components, or replacement of components where geometry is inherent to the component design.
The examination coverage achieved for the subject welds in conjunction with acceptable construction code examinations provides reasonable assurance that unallowable flaws do not exist in the subject component welds and that the welds are acceptable for service.
Thus, an acceptable level of quality and safety will have been achieved and public health and safety will not be endangered by allowing the proposed alternative examination in lieu of the Code requirement.
7.0 IMPLEMENTATION SCHEDULE AND DURATION Upon approval by the NRC staff, TVA will implement the provisions of this relief request for the Preservice Inspection of WBN Unit 2.
E1-3
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information RCS / SA-351 CF-8A B-J / 27.5" R-P0147 75% Beam angle: 450 refracted longitudinal RCF-C2-2 (pipe and pump) B9.11 2.21" Transducer Size: .5"xl .0" Limitation upstream due to pump housing configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A B-J / 27.5" R-P0149 75% Beam angle: 450 refracted longitudinal RCF-C3-2 (pipe and pump) B9.11 2.21" Transducer Size: .5"xl .0" Limitation upstream due to pump housing configuration.
NRI* (PT NRI*)
RCS / SA-403 WP304 B-J / 4"/ R-P0228 90% Beam angle: 1) 450 shear and 2) 700 shear RCF-D145-05 (tee and reducer) B9.11 0.531" Transducer Size: 1) .250" and 2) .250" Limitation due to tee and reducer configuration.
NRI* (PT NRI*)
RCS / SA-403 WP304 / B-J / 4"! R-P0226 50% Beam angle: 1) 450 shear and 2) 600 refracted RCF-D145-08 SA-182 F316 B9.11 0.531" longitudinal (elbow/valve) Transducer Size: 1) .250" and 2) dual 8x14mm Limitation due to valve body taper.
NRI* (PT NRI*)
RCS / SA-351 CF-8A B-J I 31"! R-P0152 75% Beam angle: 450 refracted longitudinal RCF-G1-4 (pipe and pump) B9.11 2.48" Transducer Size: .5"xl .0" Limitation downstream due to pump housing configuration.
NRI* (PT NRI*)
E1-4
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. I Report Limited Component ID (Configuration) I Item No. Thk. Number Scan % Additional Information RCS / SA-351 CF-8A B-J / 31"/ R-P0156 75% Beam angle: 450 refracted longitudinal RCF-G2-4 (pipe and pump) B9.11 2.48" Transducer Size: .5"x1.0" Limitation downstream due to pump housing configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A B-J / 31" R-P0150 75% Beam angle: 450 refracted longitudinal RCF-G3-4 (pipe and pump) B9.11 2.48" Transducer Size: .5"xl .0" Limitation downstream due to pump housing configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A B-J / 31"/ R-P0155 75% Beam angle: 450 refracted longitudinal RCF-G4-4 (pipe and pump) B9.11 2.48" Transducer Size: .5"xl .0" Limitation downstream due to pump housing configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A / B-J / 6" / R-PO101 50% Beam angle: 450 refracted longitudinal RCS-1-6 SA-182 F316 B9.31 2.33"** Transducer Size: .5"xl.0" (pipe/branch) Limitation from branch connection side due to configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A / B-J / 6" / R-P0105 50% Beam angle: 450 refracted longitudinal RCS-2-6 SA-182 F316 B9.31 2.33"** Transducer Size: .5"xl .0" (pipe/branch) Limitation from branch connection side due to configuration.
NRI* (PT NRI*)
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Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. / Report Limited Component ID (Configuration) I Item No. Thk. Number Scan % Additional Information RCS / SA-351 CF-8A / B-J / 6" / R-P0106 50% Beam angle: 450 refracted longitudinal RCS-3-6 SA-182 F316 B9.31 2.33"** Transducer Size: .5"x.0" (pipe/branch) Limitation from branch connection side due to configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A / B-J / 4"! R-P0107 46% Beam angle: 1) 450 shear and 2) 600 refracted RCW-01 SA-182 F316 B9.31 2.21 ... longitudinal (pipe/branch) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from pipe side due to configuration.
NRI* (PT NRI*)
RCS / SA-351 CF-8A / B-J I 4"! R-P0108 41% Beam angle: 1) 450 shear and 2) 600 refracted RCW-02 SA-182 F316 B9.31 2.21".** longitudinal (pipe/branch) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from pipe side due to configuration NRI* (PT NRI*)
RHRS / SA-403 WP316 / B-J / 14" R-P0689 76% Phased array 250 to 700 shear wave sector RHRF-D031-04 SA-182 F316 B9.11 1.250" (16 element probe) and 400 to 700 refracted (tee/valve) longitudinal wave sector (15 element probe supplemental)
Limitation due to valve to tee configuration.
NRI* (PT NRI*)
E1-6
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System / Materials Category Dia. / Report Limited Component ID (Configuration) I Item No. Thk. Number Scan % Additional Information RHRS / SA-376 TP316 / B-J / 14"/ R-P0766 83% Phased array 250 to 700 shear wave sector RHRF-D031-13 SA-182 F316 B9.11 1.250" (16 element probe) and 400 to 70° refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation due to valve to tee configuration.
NRI* (PT NRI*)
RHRS / SA-403 WP316 / B-J / 10" R-P0767 90% Phased array 250 to 700 shear wave sector RHRF-D031-14 SA-182 F316 B9.1 1 1.00" (16 element probe) and 400 to 700 refracted (elbow/valve) longitudinal wave sector (15 element probe supplemental)
Limitation due to valve to elbow configuration.
NRI* (PT NRI*)
RHRS / SA-403 TP316 / B-J / 10" R-P0759 88% Phased array 250 to 700 shear wave sector RHRS-015 SA-403 WP316 B9. 11 1.00" (16 element probe)
(pipe/tee) Limitation from tee side configuration NRI* (PT NRI*)
RPV / SA-508 C12 B-A / 173" R-P1014 75% Beam angle: 1) 00 longitudinal 2) 450 shear and 3)
W08-09 (ring and flange) B1.40 7.30" 600 shear, Transducer Size: 1) 1", 2) .5" x 1.0",
and 3) .5" x 1.0" Limitations from the flange profile configuration and three lifting lugs (4.0" tall x 5.9" length each and have a 12.8" arc length in contact with RPV head) see attached sketch (page E1-11)
NRI* (PT NRI*)
E1-7
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System / Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-376 TP304 / B-J / 1.5" R-P0590 50% Phased array 350 to 800 shear wave sector (8 SIF-B-T076-06 SA-182 F316 B9.22 0.281" element probe), Limitation from flange side (pipe/flange) configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J I 1.5" R-P0591 50% Phased array 350 to 800 shear wave sector (8 SIF-B-T076-23 SA-182 F316 B9.22 0.281" element probe), Limitation from flange side (pipe/flange) configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J / 1.5" R-P0650 75% Phased array 350 to 800 shear wave sector (8 SIF-B-T077-01 SA-403 WP304 B9.22 0.281" element probe), Limitation from tee side (pipe/tee) configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J / 1.5"! R-P0588 50% Phased array 350 to 700 circ/800 axial shear wave SIF-B-T095-01 SA-182 F316 89.22 0.281" sector (8 element probe), Limitation from branch (pipe/nozzle) side configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J I 1.5"! R-P0589 50% Phased array 350 to 700 circ/800 axial shear wave SIF-B-T097-13 SA-182 F316 B9.22 0.281" sector (8 element probe)
(pipe/flange) Limitation from flange side configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J / 1.5" / R-P0646 50% Phased array 350 to 800 shear wave sector (8 SIF-B-T107-04 SA-182 F316 B9.22 0.281" element probe)
(pipe/flange) Limitation from flange side configuration NRI* (UT only)
SIS/ SA-376 TP304 / B-J I 1.5" R-P0649 50% Phased array 350 to 800 shear wave sector (8 SIF-B-T107-05 SA-182 F316 B9.22 0.281" element probe)
(pipe/flange) Limitation from flange side configuration NRI* (UT only)
E1-8
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System / Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-376 TP304 / B-J / 1.5" / R-P0647 75% Phased array 350 to 800 shear wave sector (8 SIF-B-T107-26 SA-182 F316 B9.22 0.281" element probe)
(pipe/nozzle) Limitation from branch side configuration NRI* (UT only)
SIS/ SA-376 TP304 / B-J / 1.5"! R-P0651 49% Phased array 350 to 800 shear wave sector (8 SIF-B-T142-01 SA-182 F316 B9.22 0.281" element probe)
(pipe/nozzle) Limitation from branch side configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J / 1.5" R-P0648 71% Phased array 350 to 800 shear wave sector (8 SIF-B-T154-01 SA-182 F316 B9.22 0.281" element probe)
(pipe/nozzle) Limitation from branch side configuration NRI* (UT only)
SIS / SA-376 TP304 / B-J / 3"! R-P0508 70% Beam angle: 1) 450 shear and 2) 700 shear SIF-D193-03 SA-182 F316 B9.22 0.281" Transducer Size: 1) .250" and 2) .250" (pipe/valve) Limitation from valve side due to configuration NRI* (UT only)
SIS / SA-376 TP316 / B-J / 10" R-P0437 68% Phased array 250 to 700 shear wave sector SIF-D196-03 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation due to valve to elbow configuration NRI* (PT NRI*)
E1-9
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. I Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-376 TP316 / B-J / 10" / R-P0472 73% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D196-05 SA-182 F316 B9.11 1.00" longitudinal (pipe/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
SIS / SA-403 WP316 / B-J / 10"! R-P0486 75% Phased array 250 to 700 shear wave sector SIF-D196-06 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted.
(tee/valve) longitudinal wave sector (15 element probe supplemental)
Limitation due to valve to tee configuration NRI* (PT NRI*)
SIS / SA-403 WP316/ B-J 6"!/ R-P0440 73% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D196-07 SA-182 F316 B9.11 0.719" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2)dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
SIS / SA-376 TP316 / B-J / 10" R-P0487 73% Phased array 250 to 700 shear wave sector SIF-D196-10 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration NRI* (PT NRI*)
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Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. / Report Limited Component ID (Configuration) I Item No. Thk. Number Scan % Additional Information SiS / SA-403 WP316/ B-J / 10" / R-P0488 75% Phased array 250 to 700 shear wave sector SIF-D196-11 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (elbow/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration NRI* (PT NRI*)
SIS / SA-376 TP316/ B-J / 10" R-P0304 75% Phased array 250 to 700 shear wave sector SIF-D197-03 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration NRI* (PT NRI*)
SIS / SA-403 WP316 / B-J 10"! R-P0287 73% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D197-05 SA-182 F316 B9.11 1.00" longitudinal (tee/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT - 1/8" recordable linear)
SIS / SA-376 TP316 / B-J / 10" R-P0306 74% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D197-08 SA-182 F316 B9.11 1.00" longitudinal (pipe/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
El-11
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. I Report Limited Component ID (Configuration) /Item No. Thk. Number Scan % Additional Information SIS/ SA-403 WP316 / B-J / 10" / R-P0305 74% Beam angle: 1) 450 shear and 2) 70' refracted SIF-D197-09 SA-182 F316 B9.11 1.00" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2) dual 8xl4mm Limitation from valve side due to configuration NRI* (PT NRI*)
SIS/ SA-376 TP316/ B-J / 6" / R-P0620 50% Phased array 250 to 700 shear wave sector SIF-D197-11A SA-182 F316 B9.11 0.719" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (dual element probe)
Limitation from valve side due to configuration NRI* (PT NRI*)
SIS / SA-376 TP316/ B-J / 10"/ R-P0348 75% Phased array 250 to 700 shear wave sector SIF-D198-03 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration NRl* (PT NRI*)
SIS / SA-376 TP316 / B-J / 10" / R-P0341 75% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D198-04 SA-182 F316 B9.11 1.00" longitudinal (pipe/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
E1-12
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System / Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-403 WP316/ B-J / 10"/ R-P0344 75% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D198-05 SA-182 F316 B9.11 1.00" longitudinal (tee/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRl* (PT NRI*)
SIS/ SA-403 WP316/ B-J / 6" / R-P0349 75% Beam angle: 1) 450 shear and 2) 70' refracted SIF-D198-06 SA-182 F316 B9.11 0.719" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRl* (PT NRI*)
SIS/ SA-403 WP316 I B-J / 10"! R-P0343 75% Beam angle: 1) 450 shear and 2) 600 refracted SIF-D198-10 SA-182 F316 B9.11 1.00" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRl* (PT NRI*)
SIS / SA-403 WP316/ B-J / 10"! R-P0434 57% Beam angle: 1) 450 shear and 2) 70' refracted SIF-D199-03 SA-182 F316 B9.11 1.00" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
E1-13
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System I Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-376 TP316 / B-J / 10" / R-P0369 74% Phased array 250 to 700 shear wave sector SIF-D199-05 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration.
Recordable root geometry 3600°at varying amplitude.
(PT NRI*)
SIS / SA-403 WP316 / B-J / 10" R-P0370 75% Phased array 250 to 700 shear wave sector SIF-D199-06 SA-182 F316 B9.11 1.00" (16 element probe) and 400 to 700 refracted (tee/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration.
Recordable root geometry 3600 at varying amplitude.
(PT NRI*)
SIS / SA-403 WP316 / B-J / 6" / R-P0405 70% Beam angle: 1) 450 shear and 2) 700 refracted SIF-D199-07 SA-182 F316 B9.11 0.719" longitudinal (elbow/valve) Transducer Size: 1) .375" and 2) dual 8x14mm Limitation from valve side due to configuration NRI* (PT NRI*)
E1-14
Enclosure 1 TABLE 1 - ASME CODE CLASS 1 COMPONENTS System / Materials Category Dia. / Report Limited Component ID (Configuration) Item No. Thk. Number Scan % Additional Information SIS / SA-376 TP316 / B-J / 10"/ R-P0382 73% Phased array 250 to 700 shear wave sector SIF-D199-10 SA-182 F316 B9.11 1.00" (16 element probe) and 40) to 700 refracted (pipe/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration.
NRI* (PT NRI*)
SIS / SA-403 WP316 / B-J / 10"! R-P0383 73% Phased array 250 to 700 shear wave sector SIF-D199-11 SA-182 F316 B9.11 1.00" (16 element probe) and 40° to 70" refracted (elbow/valve) longitudinal wave sector (15 element probe supplemental)
Limitation from valve side due to configuration.
NRI* (PT NRI*)
SIS / SA-403 WP316 B-J / 6" / R-P0491 61% Phased array 250 to 700 shear wave sector SIF-D199-15 (tee and elbow) B9.11 0.719" (16 element probe) and 400 to 700 refracted longitudinal wave sector (15 element probe supplemental)
Limitation from tee side due to configuration.
NRI* (PT NRI*)
- NRI: No Recordable Indications
- Nominal wall thickness is given from the piping side of a branch connection El-15
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ENCLOSURE 2 List of Files Provided on Enclosed Optical Storage Media (OSM)
Tennessee Valley. Authority - Watts Bar Nuclear Plant - Unit 2, Docket No. 50-391 File Name Fill Size (Bytes) 01 - NDE Report # R-PO101 429,086 02 - NDE Report # R-P0105 327,427 03 - NDE Report # R-P0106 379,655 04 - NDE Report # R-P0107 439,107 05 - NDE Report # R-P0108 425,388 06 - NDE Report # R-P0147 285,886 07 - NDE Report# R-P0149 277,510 08 - NDE Report# R-P0150 238,133 09 - NDE Report# R-P0152 241,152 10 - NDE Report# R-P0155 250,381 11 NDE Report# R-P0156 292,119 12 - NDE Report # R-P0226 389,718 13 - NDE Report # R-P0228 370,479 14 - NDE Report # R-P0286 86,482 15 - NDE Report # R-P0287 335,788 16 - NDE Report # R-P0304 462,739 17 - NDE Report # R-P0305 363,301 18 - NDE Report # R-P0306 363,713 19 - NDE Report # R-P0341 360,572 20 - NDE Report # R-P0343 330,485 21 NDE Report # R-P0344 377,635 22 - NDE Report # R-P0348 275,543 23 - NDE Report # R-P0349 409,510 24 - NDE Report # R-P0369 448,429 E2-1
ENCLOSURE 2 List of Files Provided on Enclosed Optical Storage Media (OSM)
Tennessee Valley Authority - Watts Bar Nuclear Plant - Unit 2, Docket No. 50-391 File Name Fill Size (Bytes) 25 - NDE Report # R-P0370 442,420 26 - NDE Report # R-P0382 446,365 27 - NDE Report # R-P0383 372,546 28 - NDE Report # R-P0405 325,054 29 - NDE Report # R-P0434 349,900 30 - NDE Report # R-P0437 392,200 31 - NDE Report # R-P0440 329,566 32 - NDE Report # R-P0472 3,542,311 33 - NDE Report # R-P0486 3,808,107 34 - NDE Report # R-P0487 3,856,000 35 - NDE Report # R-P0488 4,070,812 36 - NDE Report # R-P0491 4,433,621 37 - NDE Report # R-P0508 3,432,751 38 - NDE Report # R-P0588 304,396 39 - NDE Report # R-P0589 302,163 40 - NDE Report # R-P0590 313,886 41 - NDE Report,# R-P0591 324,638 42 - NDE Report # R-P0620 449,301 43 - NDE Report # R-P0646 342,267 44 - NDE Report # R-P0647 332,942 45 - NDE Report # R-P0648 338,066 46 - NDE Report # R-P0649 337,999 47 - NDE Report # R-P0650 334,859 48 - NDE Report # R-P0651 342,129 E2-2
ENCLOSURE2 List of Files Provided on Enclosed Optical Storage Media (OSM)
Tennessee Valley Authority - Watts Bar Nuclear Plant - Unit 2, Docket No. 50-391
-File Name Fill Size (Bytes) 49 - NDE Report # R-P0689 506,442 50 - NDE Report # R-P0759 334,835 51 - NDE Report # R-P0766 379,118 52 - NDE Report # R-P0767 370,904 53 - NDE Report # R-P1014 521,877 E2-3