ML17228B049
| ML17228B049 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 02/03/1995 |
| From: | Anderson E FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML17228B046 | List: |
| References | |
| PSL-200-95-PRZ, NUDOCS 9503070362 | |
| Download: ML17228B049 (15) | |
Text
NUCLEAR ENGINEERlNG DEPARTMENT Component, Support and Inspections P.O. Box 14000 Juno Beach, Florida 33408 St. Lucie Nuclear Power Plant Unit 2 ATTACHMENTC SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR THE PRESSURIZER INSTRUMENT NOZZLES Prepared by Florida Power and Light Company Code Programs Section For St. Lucie Nuclear Power Planf 10 Miles South of Ff. Pierce on A1A Ft. Pierce, Florida 33034 Revision Number:
0 Date:
Commercial Service Date:
NRC Docket Number:
Document Number:
August 8, 1983 50-389 PSL-200-95-PRZ February 3, 1995 Prepared by:
Approved by:
Sr. Specialist - ISI Supervisor - Code Programs 9503'070~62 950302 PDR ADOCK 05000389 PDR
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NUCLEAR ENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408 (407) 6944181 ST. LUCIE UNIT2 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN I
FOR PRESSURIZER INSTRUMENT NOZZLES PSL-20045+RZ Reviabn 0
February 3, 1995 TABLE OF CONTENTS Table of Contents Record of Revision.
Abstract..
1.0 Introduction 1.1 Inspection Interval 1.2 Inspection Periods 1.3 Applicable Documents
1.4 Applicable Code Edition and Addenda
2.0 Development of Inspection Plan
2.1 Background
2.2 Description of Repair/Modification..
2.3 Nondestructive Examination Procedure 2.4 Nondestructive Examination Method 2.5 Ultrasonic Calibration Block 2.6 Inspection Schedule 3.0 Records 3.1 General 3.1.1 Inspection Zones 3.2 Final Reports 3.3 lnservice Inspection Summary Report UST OF FIGURES 3-1 Inservice Inspection Schedule 3-2 ISI Sketch..
9 10 File PSL2PRZ95 Page 2 of 11
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NOCLEARs ENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408 (407) 684%181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES Revhbn 0
February 3, 1886 RECORD OF REVISION REVISION No.
DATE February 3, 1995 AFFECTED PAGES Entire Document REASON FOR REVISION Initial issue File PSL2PRZ.95 Page 3 of 11
NBCLEARiENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA SS408 (407) 684%181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES Revisbn 0
February S, 1995 ABSTRACT This document provides the Florida Power and Ught Company proposed plan and schedule for performing subsequent inservice reexaminations of the St. Lucle Unit 2 Pressurizer Upper Head Steam Space Instrument Nozzle indications as required by the American Society ofMechanical Engineers (ASME), Boiler and Pressure Vessel Code (B&PVC),Section XI.
The Pressurizer instrument Nozzles are classNed as Quality Group A, ASME Code Class 1, and'therefore governed by the rules and requirements set forth in the applicable Edition and/or Addenda of Section XI, to the extent practical within the limitations of design, geometry and materials of construction of the components as stated in 10 CFR 50.55a (b)(2).
During the 1994 refueling outage, external leakage was identified at the pressurizer steam space instrument nozzle "C". Supplemental surface examinations ofthe J-welds forthree ofthe four nozzles Identilied several indications which exceeded the acceptance criteria ofIWB-3000. An analytical evaluation IWB-3132.4, was performed in accordance with the requirements IWB-3600 to allow the unit to return to service for one fuel cycle.
The proposed plan and schedule included within this document addresses the subsequent inservice reexamination requirements ofIWB-2420, where the acceptance criteria of IWB-3600 are satisfied, and the area (s) containing the flaws requires reexamination.
Figure 3-1 identiTies each instrument nozzle selected for reexamination.
This Figure providegsuch information as component Identification, component description, nondestructive examination method, and the proposed schedule within the Second Inservice Inspection Interval and by period the inservice reexaminations are to be performed.
File PSL2PRZ.95 Page 4 of 11
NUCLEARiENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA
$$408 (407) 884%1 81 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES RevhIon 0
February 3, 1885
1.0 INTRODUCTION
This document provides the proposed Inservice Examination Schedule for the subsequent reexaminations ofthe St. Lucie Nuclear Power Plant, Unit 2, Pressurizer Upper Head Steam Space Instrument Nozzles.
The Commercial Service Date for St. Lucie Nuclear Power Plant Unit 2 was August 8, 1983.
1.1 INSPECTION INTERVAL The Second Inservice Inspection Interval became effective on August 8, 1993 and is scheduled to end on August 8, 2003.
1.2 INSPECTION PERIODS The Second lnservice Inspection Interval is divided into three successive inspection period as determined by calendar years of plant service within the interval. Identified below are the period dates for the second inspection interval.
PERIOD START August 8, 1993 August 8, 1996 August 8, 2000 END August 8, 1996 August 8, 2000 August 7, 2003 1.3 APPLICABLE DOCUMENTS ASME Boiler and Pressure Vessel Code, Sections V, 1989 Edition, "Nondestructive Examination" ASME Boiler and Pressure Vessel Code,Section XI, 1989 Edition, "Rules for Inservice Inspection of Nuclear Power Plant Components" PSL-200, St. Lucie Unit 2 Second Inservice Inspection interval Program, Plan and Schedule, revision 0, July 24, 1993.
32-1235128-00, Fracture Mechanics Analysis of St. Lucia Pressurizer Instrument Nozzle, revision 0, December 23, 1994 32-1235127-00, Stresses for St. Lucie Unit 2 Pressurizer LEFM, revision 0, December 8, 1994 1.4 APPLICABLE CODE EDITIONS AND ADDENDA Pursuant to Title 10, Part 50, Section 55a(g)(4), of the Code of federal regulations, the Inservice Inspection requirements applicable to nondestructive examination forthe Second InseIvice Inspection Interval is based on the rules set forth in the 1989 Edition of Section XI, hereafter, referred to as the Code.
File PSL2PRZ.95 Page 5 of 11
'NUCLEAR ENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408 (407) 694<181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES Revhien 0
February 3, 1995 2.0 DEVELOPMENT OF INSPECTION PLAN This document provides the proposed plan and schedule for conducting inservice nondestructive reexaminations of the Florida Power and Light Company's (FPL), St. Lucie Nuclear Power Plant Unit 2, four Pressurizer Upper Head Steam Space Instrument Nozzle.
2.1 BACKGROUND
During the 1994 refueling outage, external leakage was identified at the pressurizer steam space instrument nozzle "C". Supplemental surface (liquid penetrant) examinations ofthe J-welds for three of the four nozzles identified several indications on the inside surface which exceeded the acceptance criteria ofIWB-3000. An analytical evaluation IWB-3132.4, was performed in accordance with the requirements IWB-3600 to allow the unit to return to service for one fuel cycle.
Following the units return to service, FPL contracted with B8 W Nuclear Service Company to provide a bounding flaw evaluation ofthe 1.0 inch nozzles in the pressurizer. The results ofthis flaw evaluation were acceptable for the design life ofthe plant, per IWB-3612 ofthe Code.
In accordance with IWB-2420(b), FPL is required to conduct reexaminations on the four Pressurizer Upper Head Steam Space Nozzles for three consecutive inspection periods.
Summarized below is the proposed plan FPL willutilize to conduct these reexaminations.
2,2 DESCRIPTION OF REPAIR/MODIFICATION During the 1994 refueling outage FPL performed a repair/modification of the four Pressurizer Upper Head Steam Space Instrument Nozzle.
This repair/modification consisted of welding an external pad to the outside surface of the pressurizer shell.
Welding was performed in accordance withASME Code Case NP32, Repair Welding using Automatic or Machine Gas Tungsten - Arc Welding (GTAW) Temperbead Technique.
Due to the repair/modifications unique configuration and the need to be able to monitor the flaw over the service life of the pressurizer, FPL proposes the following:
2.3 NONDESTRUCTIVE EXAMINATIONPROCEDURE Reexamination of the four Pressurizer Upper Head Steam Space Instrument Nozzles will be performed ln accordance with a qualified FPL nondestructive examination procedure which conforms to the requirements of the FPL Quality Assurance Program and the applicable Code. This procedure shall be written specifically for monitoring flawindications.
2.4 NONDESTRUCTIVE EXAMINATIONMETHOD FPL proposes to conduct a manual volumetric (ultrasonic) examination from the outside surface of the pressurizer shell in monitoring the progression of the flaw(s) over the service life of the component.
The technique to be used shall be qualified and demonstrated to the satisfaction Authorized Nuclear Inservice Inspector.
File PSL2PRZ.95 Page 6 of 11
ISI NUCLEAR,ENGINEERING CSIODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408
, (407) 694%181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES RevIabn 0
February 3, 1995 2.5 ULTRASONIC CAUBRATIONBLOCK FPL has fabricated an ultrasonic calibration block (mock-up) of the pressurizer instrument nozzle for the conduct of these reexaminations.
2.6 INSPECTION SCHEDULE Commencing with the 1995 refueling outage, which is currently scheduled to begin on September 25, 1995, FPL will perform the initial examination of the four steam space nozzles utilizing the above plan. The reexaminations as required by IWB-2420 (b) willbe accomplished as follows:
Second Inspection Interval - Reexamination in the second and third inspection penod
- 2. Third Inspection Interval - Reexamination in the first inspection period.
File PSL2PRZ95 Page 7 of 11
ISI NUCLE ENGINEERING CSIODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408 (407) 6944181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES Reviabn 0
February 3, 1995 3.0 RECORDS 3.1 General Records and Reports of Inseivice Examination activities (such as
- Programs, Plans, Schedules, calibration, examination procedures, examination
- results, final reports, equipment and personnel certifications, corrective actions taken or recommended will be developed a'nd maintained in accordance with IWA4000 of the ASME Boiler and Pressure Vessel Code,Section XI.
3.1.2 INSPECTION ZONES Systems subject to examination have been divided into zones.
Each zone is defined by a weld/support location map (see ISI Sketch 02-005-B attached), which identifies and locates each steam space nozzle subject to reexamination within zone 005.
3.2 FINALREPORTS Following the completion of each Inservice Inspection Activity, FPL shall prepare a
Inservice Inspection Final Report. The Final Report will be filed at the St. Lucie site Document Control Center.
This report shall be made available for review by the Enforcement and Regulatory Authority having jurisdiction at the plant site.
3.3 INSERVICE INSPECTION
SUMMARY
REPORT Following the units return to service, FPL shall foiward a Summary Report of the ISI activity to the Nuclear Regulatory Commission.
Results of reexaminations conducted during a inspection period on the pressurizer steam space nozzles shall be addressed within the summary report submittal.
File PSL2PRZ95 Page 8 of 11
ISI NSCLEAP, ENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408 (407) 6844181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPLAN FOR PRESSURIZER INSTRUMENT NOZZLES Revtshn 0
Febnrary 3, 1885 ST. LUCIE UNIT 2 DATE: February 3, 1995 INSERVICE INSPECTION SCHEDULE CLASS 1 PRESSURIZER STEAM SPACE INSTRUMENT NOZZLE SYSTEM:
Reactor Coolant System ZONE NUMBER:
005 INSPECTION INTERVAL FIRST SECOND THIRD PERIOD PERIOD PERIOD
SUMMARY
NUMBER EXAM.AREA IDENTIFICAT NDE METHOD OUTAGE 123 123 123 INSTRUCT.
022300 022400 02~5-B 672-105A Level NozzleI0 deg.
672-105B Level NozzleI 180 deg.
UT UT X
X X
X X
Examination to bo performed once each Inspection perhd Mock-Up X
Examination to be performed once each Inspection perhd 022500 672-105C Level Nozzh e 195 deg.
UT X
X Mock-Up X
Examination to be performed once each Inspection perhd.
022600 672-105D Level NozzleI345 deg.
UT X
X Mock-Up X
Examination to be performed once each inspection perhd.
Notes:
1.
Mock-Up This Table identifies the schedule of examinations for the Current Second Insefvice Inspection Interval only. The 3rd. reexamination will be incorporated within the Third Inservice Ins paction Interval during the program update as required by 10 CFR 50.55a (b).
Figure 3-1 File PSL2PRZ95 Page 9 of f1
TOP HEAD BOTTOM HEAD 672-105D 1.0 PRESSURE TAP NOZZLE 672-105-A 1.0 LEVEL NOZZLE 672-102 1.0 TEMPERATURE NOZZLE 108-601 D 3.0" SAFETY VALVE NOZZLE UPENDING LUGS 108-601-C 3.0" SAFETY VALVE NOZZLE 270'08-601-B 4.0" REUEF NOZZLE CONT. ON A
DWG.02-038 ZONE 38 672-105C 1.0" PRESSURE FOR DETAIL TA NOZZLE SEE DWG.
02-005-A VIEW A-SECTION A-A MS-01-20 STUDS MN-01-20 NUTS 0
270' 103-601 gp.
4.0 SPRAY NOZZLE 90 CONT. ON DWG.02-025 ZONE 25 180 UPENDING LUGS 108-601-A 3.0 SAFETY VALVE NOZZLE 30 HEATER SLEEVES 672-105-B 1.0 LEVEL NOZZLE 90'8
~
16.0 MANWAY Gl Hl Dl Al OOO gl Cl F2 C2 0 0 H2 02 A2 OOO o"
0 A4 D4 H4 C4 F4 82 E2 J2 C3 F3 0 0 A3 03dI3 G3 180'ECllON E-E SEE DWG.
02-005-A 684-108-A 1.0 LEVEL NOZZLE 270'84-108-B 1.0" LEVEL NOZZLE 105-651 12.0" SURGE NOZZLE CONT. ON DWG.02-016 ZONE 16 REFERENCE DRAMINGS E-71372-651-001 REV. 3 E-71372-661-002 REV. 0 E-71372-671-003 REV. 5 E-71372-671-005 REV. 2 E-71372-676-001 REV.
1 E-71372-684-001 REV.
1 2998-18708 REV. 0 NOTES CALIBRATION BLOCKS AND MATERIAL 30-HEATERS, SB167-A600 7-NOZZLES 4-STEAM SPACE, SB166-A690 3-WATER SPACE. SB166-A600 UT-4A, UT-6, UT-17 TITLEi PRESSURIZER DATEi 04/25/94 DLS ISI SKETCH ZONEi 5 ORAVINO Ma 02-005-B REVISION 3
FLORIDA POVER 8
LIGHT ST LUCIE UNIT 2
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IS1
~ NUCL&4ENGINEERING CSINODE PROGRAMS P.O. BOX 14000 JUNO BEACH, FLA 33408
'$407) 88I4181 SECOND INSERVICE INSPECTION INTERVAL SUBSEQUENT INSERVICE EXAMINATIONPIAN FOR PRESSURIZER INSTRUMENT NOZZLES Revhbn 0
February 3, 1885 END OF DOCUMENT File PSL2PRZ.95 Page 11 of 11
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