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=Text=
=Text=
{{#Wiki_filter:.              .
{{#Wiki_filter:.
                            .                            ENCLOSURE TO SOUTHERN NUCLEAR OPERATING COMPANY LETTER LCV-1222-A CORRECTED PAGES' FOR VEGP-2 ISI  
ENCLOSURE TO SOUTHERN NUCLEAR OPERATING COMPANY LETTER LCV-1222-A CORRECTED PAGES' FOR VEGP-2 ISI  


==SUMMARY==
==SUMMARY==
REPORT FOR SPRING 1998 MAINTENANCE / REFUELING OUTAGE
REPORT FOR SPRING 1998 MAINTENANCE / REFUELING OUTAGE
                    ' Enclosure includes pages 2-6,2-7,6-6,6-8, and 6-9 only.
' Enclosure includes pages 2-6,2-7,6-6,6-8, and 6-9 only.
                  ~
~
9901220065 990113 PDR       ADOCK 05000425 G-                       PDR
9901220065 990113 PDR ADOCK 05000425 G-PDR


examinations as currently required by ASME Section XI. For this reason, the RPV                                 '
examinations as currently required by ASME Section XI. For this reason, the RPV examinations conducted during the 2R3 outage were performed again during the 2R6 outage in order to ",re-zero" the RPV examinations thus keeping an approximate 10 year ir.terval between examinations.
examinations conducted during the 2R3 outage were performed again during the 2R6 outage in order to ",re-zero" the RPV examinations thus keeping an approximate 10 year ir.terval between examinations.
Details on the RPV examinations performed by WesDyne, procedures utilized, equipment, material and personnel certifications, etc., may be fmd in the WesDyne " Examination Report of the Reactor Vessel 10 Year inspection for Vogtle Electric Generating Plant Unit 2". The WesDyne report is available at the plant site for review upon request.
Details on the RPV examinations performed by WesDyne, procedures utilized, equipment, material and personnel certifications, etc., may be fmd in the WesDyne " Examination Report of the Reactor Vessel 10 Year inspection for Vogtle Electric Generating Plant Unit 2". The WesDyne report is available at the plant site for review upon request.
In addition to components already identified in current requests for relief, seven piping welds         l had limited volumetric coverage during their ultrasonic examinations because of physical                         ,
In addition to components already identified in current requests for relief, seven piping welds l
lin lations due to the geometric configu ation of the welded areas. In order for adequate ASME                   !
had limited volumetric coverage during their ultrasonic examinations because of physical lin lations due to the geometric configu ation of the welded areas. In order for adequate ASME Section XI Code-required examination coverage to be attained, more than 90% of the required volume must be examined as addressed in ASME Code Case N-460. The subject Code Case has been approved for use in NRC Regulatory Guide 1.147. It is impractical to achieve the ASME Section XI Code-required coverage due to the geometric configuration of the welded areas.
Section XI Code-required examination coverage to be attained, more than 90% of the required volume must be examined as addressed in ASME Code Case N-460. The subject Code Case has                           !
been approved for use in NRC Regulatory Guide 1.147. It is impractical to achieve the ASME                       ;
Section XI Code-required coverage due to the geometric configuration of the welded areas.
Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds during a future ISI program revision for VEGP-2 as allowed by 10 CFR 50.55a.
Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds during a future ISI program revision for VEGP-2 as allowed by 10 CFR 50.55a.
The applicable welds are indicated by " Relief Required" in the Class I weld tables.                     l The Eddy Current (ET) examinations of steam generator tubing, as required by VEGP Technical                       !
The applicable welds are indicated by " Relief Required" in the Class I weld tables.
Specification 5.5.9, were performed by Westinghouse and are discussed in the " Class 3 and Augmented Examinations" portion of this document.
l The Eddy Current (ET) examinations of steam generator tubing, as required by VEGP Technical Specification 5.5.9, were performed by Westinghouse and are discussed in the " Class 3 and Augmented Examinations" portion of this document.
Class 1 Pressure Test ASME Section XI, Table IWB-2500-1, Examination Category B-P requires that a system                               !
Class 1 Pressure Test ASME Section XI, Table IWB-2500-1, Examination Category B-P requires that a system hydrostatic test (IWB-5222) be performed at or near the end of each inspection interval. This test is identified as the Class I hydrostatic test (HT-1) and it extends to the Class I pressure boundary extremity (i.e., second isolation valve) and also includes selected adjacent Clas3 2 components which are typically isolated from the Class 1 boundary by check valves. As an alternative to ASME Section XI requirements, Code Case N-498-1 which has been approved by the NRC for use at VEGP was used. Code Case N-498-1 deleted the 10-year elevated pressure requirement for hydrostatic tests but retained the requirement to extend the boundary subject to test pressurization to include each of the Class 1 pressure-retaining components. To assure that all Class 1 pressure-retaining components and selected adjacent Class 2 pressure-retaining components are pressurized requires that valves be aligned to positions other than their normal position requirec. for normal reactor operatian startup and for some isolated boundaries requirec the use of a hydrostatic test pump to achieve pressure. These normally isolated Class 1 and 2 pressure-retaining components were pressurized and visually examined during 2R6. These visual examinations revealed minor leakage and boron residue at mechanical connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.
hydrostatic test (IWB-5222) be performed at or near the end of each inspection interval. This test is identified as the Class I hydrostatic test (HT-1) and it extends to the Class I pressure boundary extremity (i.e., second isolation valve) and also includes selected adjacent Clas3 2 components which are typically isolated from the Class 1 boundary by check valves. As an alternative to ASME Section XI requirements, Code Case N-498-1 which has been approved by the NRC for use at VEGP was used. Code Case N-498-1 deleted the 10-year elevated pressure requirement for hydrostatic tests but retained the requirement to extend the boundary subject to test pressurization to include each of the Class 1 pressure-retaining components. To assure that all Class 1 pressure-retaining components and selected adjacent Class 2 pressure-retaining components are pressurized requires that valves be aligned to positions other than their normal position requirec. for normal reactor operatian startup and for some isolated boundaries requirec the use of a hydrostatic test pump to achieve pressure. These normally isolated Class 1 and 2 pressure-retaining components were pressurized and visually examined during 2R6. These visual examinations revealed minor leakage and boron residue at mechanical connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.
ASME Section XI, Subparagraph IWA-5242(a) requires removal ofinsulation from pressure-re'aining bolted connections for VT-2 examination during system pressure testing for systems borated for the purposes of controlling reactivity. Relief was requested (RR-26) from this Code requirement by SNC letter LCV-1016-A dated September 10,1997, to the NRC. By {{letter dated|date=October 24, 1997|text=letter dated October 24,1997}}, the NRC granted approval from this Code requirement. The approved alternative was to remove the insulation from bolted connection:: while they are at either atmospheric or static pressures, perform a VT-2 examination of the bolted connections for evidence ofleakage. This approved alternative was implemented during 2R6.
ASME Section XI, Subparagraph IWA-5242(a) requires removal ofinsulation from pressure-re'aining bolted connections for VT-2 examination during system pressure testing for systems borated for the purposes of controlling reactivity. Relief was requested (RR-26) from this Code requirement by SNC letter LCV-1016-A dated September 10,1997, to the NRC. By {{letter dated|date=October 24, 1997|text=letter dated October 24,1997}}, the NRC granted approval from this Code requirement. The approved alternative was to remove the insulation from bolted connection:: while they are at either atmospheric or static pressures, perform a VT-2 examination of the bolted connections for evidence ofleakage. This approved alternative was implemented during 2R6.
2-6
2-6


Class 2 Examinations Selected ' Class 2 components were examined utilizing MT, PT, and UT, as applicable. Specific components and examination areas are itemized in the applicable portions of this report document. A summary of those components examined are listed below:
Class 2 Examinations Selected ' Class 2 components were examined utilizing MT, PT, and UT, as applicable. Specific components and examination areas are itemized in the applicable portions of this report document. A summary of those components examined are listed below:
* Steam Generator 3 Shell Welds, e  Residual Heat Removal Heat Exchanger Train "B" Nozzle Welds, e   Centrifugal Charging Pump nozzle Weld, e   Piping Welds, and
Steam Generator 3 Shell Welds, Residual Heat Removal Heat Exchanger Train "B" Nozzle Welds, e
            . Integral Attachment Support Welds.
Centrifugal Charging Pump nozzle Weld, e
Piping Welds, and e
Integral Attachment Support Welds.
During the scope of VEGP-2 manual examinations conducted, no Class 2 components were observed to have either reportable ultrasonic, liquid penetrant, or magnetic particle indications.
During the scope of VEGP-2 manual examinations conducted, no Class 2 components were observed to have either reportable ultrasonic, liquid penetrant, or magnetic particle indications.
In addition to components already identified in current requests for relief, two equipment welds and five piping welds had limited volumetric and/or surface examination coverage during their     l ultrasonic and/or surface examinations because of physical limitations due to the geometric configuration of the welded areas. It is impractical to achieve the ASME Section XI Code-required examination coverage of more than 90% due to the geometric configuration of the welded areas. Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds durin3 a future ISI program revision for VEGP-2 as allowed by 10         j CFR 50.55a. The applicable welds are indicated by " Relief Required" in the Class 2 weld tables. l   '
In addition to components already identified in current requests for relief, two equipment welds and five piping welds had limited volumetric and/or surface examination coverage during their l
Class 2 Pressure Tests ASME Section XI, Table IWC-2500-1, Examination Category C-H requires system pressure                 i testing each inspection period. 'ine specific system pressure tests performed are itemized in the   l
ultrasonic and/or surface examinations because of physical limitations due to the geometric configuration of the welded areas. It is impractical to achieve the ASME Section XI Code-required examination coverage of more than 90% due to the geometric configuration of the welded areas. Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds durin3 a future ISI program revision for VEGP-2 as allowed by 10 j
      " System Pressure Tests" pcnion of this report document. The visual examinations performed during these system presrure tests found only minor leakage at mechanical joints such as valve stem packing and at flanged connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.
CFR 50.55a. The applicable welds are indicated by " Relief Required" in the Class 2 weld tables. l Class 2 Pressure Tests ASME Section XI, Table IWC-2500-1, Examination Category C-H requires system pressure i
testing each inspection period. 'ine specific system pressure tests performed are itemized in the
" System Pressure Tests" pcnion of this report document. The visual examinations performed during these system presrure tests found only minor leakage at mechanical joints such as valve stem packing and at flanged connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.
Class I and 2 Component Supports Visual examinations were performed on supports for the following Class 1 and 2 components :
Class I and 2 Component Supports Visual examinations were performed on supports for the following Class 1 and 2 components :
            . Steam Generator 1, e  Reactor Coolant System Piping (1201),
Steam Generator 1, Reactor Coolant System Piping (1201),
-
e Nuclear Service Cooling Water System Piping (1202),
* Nuclear Service Cooling Water System Piping (1202),
Safety Injection System Piping (1204),
e  Safety Injection System Piping (1204),
e Residual Heat Removal System Piping (1205),
e   Residual Heat Removal System Piping (1205),
e Containment Spray System Piping (1205),
Containment Spray System Piping (1205),
Chemical and Volume Control System Piping (1208),
            . Chemical and Volume Control System Piping (1208),
Main Steam System Piping (1301),
* Main Steam System Piping (1301),
Auxiliary Feedwater System Piping (1302),
            . Auxiliary Feedwater System Piping (1302),
Containment Heat Removal System (1501), and e
e  Containment Heat Removal System (1501), and
Containment Heat Removal System (1515)
            . Containment Heat Removal System (1515)
Visual examinations resulted ia one support having unacceptable conditions. The support is as follows:
Visual examinations resulted ia one support having unacceptable conditions. The support is as follows:
2-7
2-7


VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE
VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE CLASS 1 PIPING EXAMINATIONS AUG9ENTED COMPONENT OR EXAM EXAM ASMESECT XI EXAMINATION INELDNOl EXAM PROCEDURE CAUBRATION SHEET NO (S).
* CLASS 1 PIPING EXAMINATIONS                                                                               ,
ITEM NOICAT.
AUG9ENTED   COMPONENT OR                                                                                       EXAM                                   EXAM                                   -
REQUIREMENT DESCRIPTION METNOD NO. NtEV.
EXAM         PROCEDURE               CAUBRATION     SHEET ASMESECT XI EXAMINATION  INELDNOl                                                                                                                                                                                              '
St.OCM(S)
NO (S).       RESULTS REMARKS ITEM NOICAT. REQUIREMENT DESCRIPTION                                                                           METNOD       NO. NtEV.                 St.OCM(S)
RESULTS REMARKS 21201PSV80108-IS ~
                                                                                                            ~
~
VT-3       VT-V-T35                                 N/A           -      EXAMfMED VWHILE B12.50       -            21201PSV80108-IS ~                                                                                                          -
VT-3 VT-V-T35 N/A EXAMfMED VWHILE B12.50 B-M-2 VALVE INTERNAL 398V2V144 SAT DISASSEMBLED RESULTS - SAT.
398V2V144    SAT    DISASSEMBLED B-M-2                     VALVE INTERNAL                                                                                                                                                   RESULTS - SAT.
SURFACES 21204-024-15 PT PT-V-805 304A S98V2P089 NRI UT RI1 GEOMETRY.
SURFACES 21204-024-15                                                                         PT           PT-V-805                 304A         S98V2P089     NRI     UT RI1 GEOMETRY.
89.11 UT SCANS UMITED I RR-20 B,J 6* PIPE TO VALVE UT UT-V-404 S98V2U164 NRI S98V2U165 RI 09.11 21204-024-15 PT PT-V405 304A S98V2P090 NRI UT RIi GEOMETRY.
89.11       -
S.J 6* VALVE TO PIPE UT UT-V 404 S98V2U186 NRI UT SCANS LIMtTEDI RELIEF REQUIRED.
UT SCANS UMITED I RR-20 B,J                       6* PIPE TO VALVE                                                                     UT           UT-V-404                               S98V2U164     NRI S98V2U165     RI 21204-024-15                                                                         PT           PT-V405                   304A         S98V2P090     NRI     UT RIi GEOMETRY.
t S98V2U187 RI 21204-024-21 FT PT-V-605 304A S98V2P091 NRI HIA B9.11 B-J 6* PIPG TO BRANCH UT UT-V-404 898V2U168 NRI CONNECTION 99.11 21204-025-21 PT PT-V-805 304A S98V2P086 NRI UT RII GEOMETRY.
09.11        -
C-J 6* PIPE TO VALVE UT UT-V-404 S98V2U152 NRI UT SCANS LIMITEDI RN END.
S98V2U186    NRI    UT SCANS LIMtTEDI S.J                       6* VALVE TO PIPE                                                                     UT           UT-V 404 RELIEF REQUIRED.
S98V2U153 Rt 21204-025-22 PT PT-V-605 304A S98V2P075 NRI UT SCANS LIMITEDi 99.11 B.J 0* VALVE TO PIPE UT UT-V-404 S98V2U150 NRI RELIEF REQUfRED.
t   S98V2U187     RI 21204-024-21                                                                         FT           PT-V-605                   304A         S98V2P091     NRI   HIA B9.11       -
S98V2U151 NRI 21204-025-27 PT PT-V405 304A 598V2P070 NRI N/A B9.11 O.J 6" PIPE TO BRANCH UT UT-V-404 S98V2U149 NRI CONNECTION SS
6* PIPG TO BRANCH                                                                   UT           UT-V-404                               898V2U168     NRI B-J CONNECTION 21204-025-21                                                                         PT           PT-V-805                   304A         S98V2P086     NRI   UT RII GEOMETRY.
99.11        -
UT-V-404                               S98V2U152     NRI   UT SCANS LIMITEDI C-J                      6* PIPE TO VALVE                                                                    UT Rt RN END.
S98V2U153 21204-025-22                                                                         PT           PT-V-605                   304A         S98V2P075     NRI   UT SCANS LIMITEDi 99.11         -
S98V2U150      NRI    RELIEF REQUfRED.
B.J                       0* VALVE TO PIPE                                                                     UT           UT-V-404 S98V2U151     NRI 21204-025-27                                                                         PT         PT-V405                     304A       598V2P070     NRI   N/A B9.11       -
6" PIPE TO BRANCH                                                                   UT         UT-V-404                               S98V2U149     NRI O.J CONNECTION SS


VEGP-2 SIXTH MAINTENANCE REFUELING OUTAGE CLASS 1 PIPING EXAleNATIONS                                                                                                                                                             ,
VEGP-2 SIXTH MAINTENANCE REFUELING OUTAGE CLASS 1 PIPING EXAleNATIONS AUGMENTED COMPONENT OR EXAM EXAM ASME SECT XI EXAMINATION WELD NOJ EXAM PROCEDURE CAU8 RATION SNEET
AUGMENTED   COMPONENT OR                                                                                                                   EXAM                                                                                 EXAM                                                   ~    '
~
EXAM                                                                                    PROCEDURE                                                              CAU8 RATION  SNEET ASME SECT XI EXAMINATION   WELD NOJ NO(S). RESULTS  REMARKS
NO(S).
* t ITEM NOfCAT. REQUWtEMENT DESCRIPTION                           METHOO                                                                                   NO. lREV.                                                               BLOCK (S) 212044C                               PT                                                                                       PT-V405                                                                 304A         S98V2P128 NRI     UT SCANS LIMi1ED1 B9.11         -
ITEM NOfCAT.
UT                                                                                                                                                                            S90V2U221 NRI    REUEF REQUIRED.
REQUWtEMENT DESCRIPTION METHOO NO. lREV.
BJ                         6" VALVE TO hPE                                                                                                               UT-V-404 S98V2U222 NRI 21204-044-2                           PT                                                                                       PT-V-605                                                               -            S98V2P129 RI      PT RtiCODE ACCEPT.
BLOCK (S)
B9.32        -
RESULTS REMARKS t
B4                         6* PfPE TO 2" BRANCH CONNECTION                                                                                                                                                                                                                               ,
212044C PT PT-V405 304A S98V2P128 NRI UT SCANS LIMi1ED1 B9.11 BJ 6" VALVE TO hPE UT UT-V-404 S90V2U221 NRI REUEF REQUIRED.
21204-044-12                         PT                                                                                       PT-V-605                                                               304A         595V2P076 NRI     N/A B9.11        -
S98V2U222 NRI S98V2P129 RI PT RtiCODE ACCEPT.
6" ELBOW TO PIPE                     UT                                                                                       UT V-404                                                                             S96V2U154 NRI B.J i
B9.32 21204-044-2 PT PT-V-605 B4 6* PfPE TO 2" BRANCH CONNECTION B9.11 21204-044-12 PT PT-V-605 304A 595V2P076 NRI N/A B.J 6" ELBOW TO PIPE UT UT V-404 S96V2U154 NRI i
21204-044-13                         PT                                                                                       PT-V405                                                               304A         S98V2P077 NRI     UT SCANS UMITED 1 B9.11        -                                                                                                                                                                                                                                                                                                    '
B9.11 21204-044-13 PT PT-V405 304A S98V2P077 NRI UT SCANS UMITED 1 l
S98V2U155 NRI    REUEF REQUIRED B4                       6* PIPE TO TEE                       UT                                                                                       UT-V404
REUEF REQUIRED B4 6* PIPE TO TEE UT UT-V404 S98V2U155 NRI
                                                                                                                                                                                                                                                  $98V2U156 NRI I
$98V2U156 NRI I
B9.11        -          21204445-1                           PT                                                                                       PT-V405                                                               304A         S98V2P012 NRI     UT RIIGEOMETRY.
21204445-1 PT PT-V405 304A S98V2P012 NRI UT RIIGEOMETRY.
UT-V-404                                                                             S98V2U120 NRI     UT SCANS UMtTED /
B9.11 B.J 6* VALVE TO PtPE UT UT-V-404 S98V2U120 NRI UT SCANS UMtTED /
B.J                      6* VALVE TO PtPE                      UT REUEF REQUIRED.
REUEF REQUIRED.
S96V2U121 RI
S96V2U121 RI S96V2P013 NR!
                -          21204-045-2                           PT                                                                                       PT-V-605                                                               -            S96V2P013 NR!    N/A B9.32 B.J                       6* PIPE TO 2" BRANCH CONNECTION 21204-045-2T                         PT                                                                                       PT-V-605                                                               304A         S98V2P109 NFil   N/A 99.11         -
N/A 21204-045-2 PT PT-V-605 B9.32 B.J 6* PIPE TO 2" BRANCH CONNECTION 21204-045-2T PT PT-V-605 304A S98V2P109 NFil N/A 99.11 B.J 6 ELBOWTO PIPE UT UT-V404 S96V2U178 NRI 8-8 L
6 ELBOWTO PIPE                       UT                                                                                       UT-V404                                                                             S96V2U178 NRI B.J 8-8


s
s
                                                                                                                                            ^
^
VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE                                                       ,.
VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE CLASS 1 PIPING EXAMINATIONS
CLASS 1 PIPING EXAMINATIONS                                                               ,    ;
~
                                                                                                                                ~
AUGMENTED COMPONENT OR EXAM EXAM ASMESECT XI EXAMINATION WELD NOJ EXAM PROCEDURE CAUBRATION SHEET NO (S).
* AUGMENTED   COMPONENT OR                     EXAM                                  EXAM EXAM       PROCEDURE          CAUBRATION        SHEET                                              .
ITEM NOCAT.
ASMESECT XI EXAMINATION   WELD NOJ NO (S). RESULTS REMARKS ITEM NOCAT. REQUIREMENT DESCRIP110N           METHOO     NO. #REV.         St.OCK (S)                                         ,
REQUIREMENT DESCRIP110N METHOO NO. #REV.
B9.11        -            21204-045-28         PT         PT-V-605           304A             S98V2P110 NRI     UT SCANS UMITED i S98V2U179  NR1    REUEF REQUIRED B-J                       6* PtPE TO TEE       UT         UT-V404 S98V2U180 NRI 99.11        -            21204-125-15         PT         PT-V405           306A             S98V2P088 NRI     UT RIIGEOMETRY.
St.OCK (S)
UT         UT-V-404                             S98V2U158 RI     UT SCANS UMfTEDIRR-12.
RESULTS REMARKS 21204-045-28 PT PT-V-605 304A S98V2P110 NRI UT SCANS UMITED i B9.11 B-J 6* PtPE TO TEE UT UT-V404 S98V2U179 NR1 REUEF REQUIRED S98V2U180 NRI 21204-125-15 PT PT-V405 306A S98V2P088 NRI UT RIIGEOMETRY.
BJ                        10" PIPE TO VALVE S98V2U161 NRI 99.11        -            21204-125-16         PT         PT-V405           306A               S98V2P086 NRI     UT RtiGEOMETRY.
99.11 BJ 10" PIPE TO VALVE UT UT-V-404 S98V2U158 RI UT SCANS UMfTEDIRR-12.
S98V2U159  RI      UT SCANS UMtTED IRR-12.
S98V2U161 NRI 21204-125-16 PT PT-V405 306A S98V2P086 NRI UT RtiGEOMETRY.
O.J                       10" VALVE TO PIPE   UT         UT-V-404
99.11 O.J 10" VALVE TO PIPE UT UT-V-404 S98V2U159 RI UT SCANS UMtTED IRR-12.
                                                                                        '      S 98 & ;52 NRI 21204-125-17         PT         PT-V-605           306A             S98V2P087 NRI     UT RI1 GEOMETRY.
S 98 & ;52 NRI B9.11 21204-125-17 PT PT-V-605 306A S98V2P087 NRI UT RI1 GEOMETRY.
B9.11        -
N 10" PtPE TO ELBOW UT UT-V-404 S98V20160 RI S98V2U163 RI 21204-125-18 PT PT-V405 306A S98V2P096 NRI UT R1/ GEOMETRY.
S98V20160  RI N                         10" PtPE TO ELBOW   UT         UT-V-404 S98V2U163 RI B9.11      -            21204-125-18         PT           PT-V405           306A             S98V2P096 NRI     UT R1/ GEOMETRY.
B9.11 B.J 10" ELBOW TO BRANCH UT UT-V-404 S98V2U191 RI CONNECTION S98V2U195 RI B9.11 21204-126-9 PT PT-V405 306A
10" ELBOW TO BRANCH UT         UT-V-404                             S98V2U191 RI B.J CONNECTION                                                           S98V2U195 RI 21204-126-9         PT           PT-V405           306A             $98V2P111 NRI     N/A B9.11        -
$98V2P111 NRI N/A B.J 10" PtPE TO ELBOW UT UT-V-404 S98V20188 NRI S98V2U192 NRI B9.11 21204-126-11 PT PT-V405 306A S96V2P034 NRI PNA BJ 10" PIPE TO TEE UT UT-V-404 S98V2U189 NRI S98V2U193 NRI l
10" PtPE TO ELBOW   UT         UT-V-404                             S98V20188 NRI B.J S98V2U192 NRI 21204-126-11         PT           PT-V405           306A             S96V2P034 NRI     PNA B9.11      -
10" PIPE TO TEE     UT           UT-V-404                           S98V2U189 NRI BJ S98V2U193 NRI l
t 6-9
t 6-9
                                                                        -                  _ _ _                    _}}
_}}

Latest revision as of 07:41, 10 December 2024

Corrected Pages to VEGP-2 ISI Summary Rept for Spring 1998 Maint/Refueling Outage
ML20199F804
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 01/13/1999
From:
SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20199F802 List:
References
NUDOCS 9901220065
Download: ML20199F804 (6)
v • d • e


Text

.

ENCLOSURE TO SOUTHERN NUCLEAR OPERATING COMPANY LETTER LCV-1222-A CORRECTED PAGES' FOR VEGP-2 ISI

SUMMARY

REPORT FOR SPRING 1998 MAINTENANCE / REFUELING OUTAGE

' Enclosure includes pages 2-6,2-7,6-6,6-8, and 6-9 only.

~

9901220065 990113 PDR ADOCK 05000425 G-PDR

examinations as currently required by ASME Section XI. For this reason, the RPV examinations conducted during the 2R3 outage were performed again during the 2R6 outage in order to ",re-zero" the RPV examinations thus keeping an approximate 10 year ir.terval between examinations.

Details on the RPV examinations performed by WesDyne, procedures utilized, equipment, material and personnel certifications, etc., may be fmd in the WesDyne " Examination Report of the Reactor Vessel 10 Year inspection for Vogtle Electric Generating Plant Unit 2". The WesDyne report is available at the plant site for review upon request.

In addition to components already identified in current requests for relief, seven piping welds l

had limited volumetric coverage during their ultrasonic examinations because of physical lin lations due to the geometric configu ation of the welded areas. In order for adequate ASME Section XI Code-required examination coverage to be attained, more than 90% of the required volume must be examined as addressed in ASME Code Case N-460. The subject Code Case has been approved for use in NRC Regulatory Guide 1.147. It is impractical to achieve the ASME Section XI Code-required coverage due to the geometric configuration of the welded areas.

Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds during a future ISI program revision for VEGP-2 as allowed by 10 CFR 50.55a.

The applicable welds are indicated by " Relief Required" in the Class I weld tables.

l The Eddy Current (ET) examinations of steam generator tubing, as required by VEGP Technical Specification 5.5.9, were performed by Westinghouse and are discussed in the " Class 3 and Augmented Examinations" portion of this document.

Class 1 Pressure Test ASME Section XI, Table IWB-2500-1, Examination Category B-P requires that a system hydrostatic test (IWB-5222) be performed at or near the end of each inspection interval. This test is identified as the Class I hydrostatic test (HT-1) and it extends to the Class I pressure boundary extremity (i.e., second isolation valve) and also includes selected adjacent Clas3 2 components which are typically isolated from the Class 1 boundary by check valves. As an alternative to ASME Section XI requirements, Code Case N-498-1 which has been approved by the NRC for use at VEGP was used. Code Case N-498-1 deleted the 10-year elevated pressure requirement for hydrostatic tests but retained the requirement to extend the boundary subject to test pressurization to include each of the Class 1 pressure-retaining components. To assure that all Class 1 pressure-retaining components and selected adjacent Class 2 pressure-retaining components are pressurized requires that valves be aligned to positions other than their normal position requirec. for normal reactor operatian startup and for some isolated boundaries requirec the use of a hydrostatic test pump to achieve pressure. These normally isolated Class 1 and 2 pressure-retaining components were pressurized and visually examined during 2R6. These visual examinations revealed minor leakage and boron residue at mechanical connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.

ASME Section XI, Subparagraph IWA-5242(a) requires removal ofinsulation from pressure-re'aining bolted connections for VT-2 examination during system pressure testing for systems borated for the purposes of controlling reactivity. Relief was requested (RR-26) from this Code requirement by SNC letter LCV-1016-A dated September 10,1997, to the NRC. By letter dated October 24,1997, the NRC granted approval from this Code requirement. The approved alternative was to remove the insulation from bolted connection:: while they are at either atmospheric or static pressures, perform a VT-2 examination of the bolted connections for evidence ofleakage. This approved alternative was implemented during 2R6.

2-6

Class 2 Examinations Selected ' Class 2 components were examined utilizing MT, PT, and UT, as applicable. Specific components and examination areas are itemized in the applicable portions of this report document. A summary of those components examined are listed below:

Steam Generator 3 Shell Welds, Residual Heat Removal Heat Exchanger Train "B" Nozzle Welds, e

Centrifugal Charging Pump nozzle Weld, e

Piping Welds, and e

Integral Attachment Support Welds.

During the scope of VEGP-2 manual examinations conducted, no Class 2 components were observed to have either reportable ultrasonic, liquid penetrant, or magnetic particle indications.

In addition to components already identified in current requests for relief, two equipment welds and five piping welds had limited volumetric and/or surface examination coverage during their l

ultrasonic and/or surface examinations because of physical limitations due to the geometric configuration of the welded areas. It is impractical to achieve the ASME Section XI Code-required examination coverage of more than 90% due to the geometric configuration of the welded areas. Relief from the ASME Section XI Code requirements will be requested from the NRC for the affected welds durin3 a future ISI program revision for VEGP-2 as allowed by 10 j

CFR 50.55a. The applicable welds are indicated by " Relief Required" in the Class 2 weld tables. l Class 2 Pressure Tests ASME Section XI, Table IWC-2500-1, Examination Category C-H requires system pressure i

testing each inspection period. 'ine specific system pressure tests performed are itemized in the

" System Pressure Tests" pcnion of this report document. The visual examinations performed during these system presrure tests found only minor leakage at mechanical joints such as valve stem packing and at flanged connections. These leaks were either corrected or evaluated and determined acceptable for continued system operation.

Class I and 2 Component Supports Visual examinations were performed on supports for the following Class 1 and 2 components :

Steam Generator 1, Reactor Coolant System Piping (1201),

e Nuclear Service Cooling Water System Piping (1202),

Safety Injection System Piping (1204),

e Residual Heat Removal System Piping (1205),

e Containment Spray System Piping (1205),

Chemical and Volume Control System Piping (1208),

Main Steam System Piping (1301),

Auxiliary Feedwater System Piping (1302),

Containment Heat Removal System (1501), and e

Containment Heat Removal System (1515)

Visual examinations resulted ia one support having unacceptable conditions. The support is as follows:

2-7

VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE CLASS 1 PIPING EXAMINATIONS AUG9ENTED COMPONENT OR EXAM EXAM ASMESECT XI EXAMINATION INELDNOl EXAM PROCEDURE CAUBRATION SHEET NO (S).

ITEM NOICAT.

REQUIREMENT DESCRIPTION METNOD NO. NtEV.

St.OCM(S)

RESULTS REMARKS 21201PSV80108-IS ~

~

VT-3 VT-V-T35 N/A EXAMfMED VWHILE B12.50 B-M-2 VALVE INTERNAL 398V2V144 SAT DISASSEMBLED RESULTS - SAT.

SURFACES 21204-024-15 PT PT-V-805 304A S98V2P089 NRI UT RI1 GEOMETRY.

89.11 UT SCANS UMITED I RR-20 B,J 6* PIPE TO VALVE UT UT-V-404 S98V2U164 NRI S98V2U165 RI 09.11 21204-024-15 PT PT-V405 304A S98V2P090 NRI UT RIi GEOMETRY.

S.J 6* VALVE TO PIPE UT UT-V 404 S98V2U186 NRI UT SCANS LIMtTEDI RELIEF REQUIRED.

t S98V2U187 RI 21204-024-21 FT PT-V-605 304A S98V2P091 NRI HIA B9.11 B-J 6* PIPG TO BRANCH UT UT-V-404 898V2U168 NRI CONNECTION 99.11 21204-025-21 PT PT-V-805 304A S98V2P086 NRI UT RII GEOMETRY.

C-J 6* PIPE TO VALVE UT UT-V-404 S98V2U152 NRI UT SCANS LIMITEDI RN END.

S98V2U153 Rt 21204-025-22 PT PT-V-605 304A S98V2P075 NRI UT SCANS LIMITEDi 99.11 B.J 0* VALVE TO PIPE UT UT-V-404 S98V2U150 NRI RELIEF REQUfRED.

S98V2U151 NRI 21204-025-27 PT PT-V405 304A 598V2P070 NRI N/A B9.11 O.J 6" PIPE TO BRANCH UT UT-V-404 S98V2U149 NRI CONNECTION SS

VEGP-2 SIXTH MAINTENANCE REFUELING OUTAGE CLASS 1 PIPING EXAleNATIONS AUGMENTED COMPONENT OR EXAM EXAM ASME SECT XI EXAMINATION WELD NOJ EXAM PROCEDURE CAU8 RATION SNEET

~

NO(S).

ITEM NOfCAT.

REQUWtEMENT DESCRIPTION METHOO NO. lREV.

BLOCK (S)

RESULTS REMARKS t

212044C PT PT-V405 304A S98V2P128 NRI UT SCANS LIMi1ED1 B9.11 BJ 6" VALVE TO hPE UT UT-V-404 S90V2U221 NRI REUEF REQUIRED.

S98V2U222 NRI S98V2P129 RI PT RtiCODE ACCEPT.

B9.32 21204-044-2 PT PT-V-605 B4 6* PfPE TO 2" BRANCH CONNECTION B9.11 21204-044-12 PT PT-V-605 304A 595V2P076 NRI N/A B.J 6" ELBOW TO PIPE UT UT V-404 S96V2U154 NRI i

B9.11 21204-044-13 PT PT-V405 304A S98V2P077 NRI UT SCANS UMITED 1 l

REUEF REQUIRED B4 6* PIPE TO TEE UT UT-V404 S98V2U155 NRI

$98V2U156 NRI I

21204445-1 PT PT-V405 304A S98V2P012 NRI UT RIIGEOMETRY.

B9.11 B.J 6* VALVE TO PtPE UT UT-V-404 S98V2U120 NRI UT SCANS UMtTED /

REUEF REQUIRED.

S96V2U121 RI S96V2P013 NR!

N/A 21204-045-2 PT PT-V-605 B9.32 B.J 6* PIPE TO 2" BRANCH CONNECTION 21204-045-2T PT PT-V-605 304A S98V2P109 NFil N/A 99.11 B.J 6 ELBOWTO PIPE UT UT-V404 S96V2U178 NRI 8-8 L

s

^

VEGP-2 SIXTH MAINTENANCE REFUEUNG OUTAGE CLASS 1 PIPING EXAMINATIONS

~

AUGMENTED COMPONENT OR EXAM EXAM ASMESECT XI EXAMINATION WELD NOJ EXAM PROCEDURE CAUBRATION SHEET NO (S).

ITEM NOCAT.

REQUIREMENT DESCRIP110N METHOO NO. #REV.

St.OCK (S)

RESULTS REMARKS 21204-045-28 PT PT-V-605 304A S98V2P110 NRI UT SCANS UMITED i B9.11 B-J 6* PtPE TO TEE UT UT-V404 S98V2U179 NR1 REUEF REQUIRED S98V2U180 NRI 21204-125-15 PT PT-V405 306A S98V2P088 NRI UT RIIGEOMETRY.

99.11 BJ 10" PIPE TO VALVE UT UT-V-404 S98V2U158 RI UT SCANS UMfTEDIRR-12.

S98V2U161 NRI 21204-125-16 PT PT-V405 306A S98V2P086 NRI UT RtiGEOMETRY.

99.11 O.J 10" VALVE TO PIPE UT UT-V-404 S98V2U159 RI UT SCANS UMtTED IRR-12.

S 98 & ;52 NRI B9.11 21204-125-17 PT PT-V-605 306A S98V2P087 NRI UT RI1 GEOMETRY.

N 10" PtPE TO ELBOW UT UT-V-404 S98V20160 RI S98V2U163 RI 21204-125-18 PT PT-V405 306A S98V2P096 NRI UT R1/ GEOMETRY.

B9.11 B.J 10" ELBOW TO BRANCH UT UT-V-404 S98V2U191 RI CONNECTION S98V2U195 RI B9.11 21204-126-9 PT PT-V405 306A

$98V2P111 NRI N/A B.J 10" PtPE TO ELBOW UT UT-V-404 S98V20188 NRI S98V2U192 NRI B9.11 21204-126-11 PT PT-V405 306A S96V2P034 NRI PNA BJ 10" PIPE TO TEE UT UT-V-404 S98V2U189 NRI S98V2U193 NRI l

t 6-9

_

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