ML17328A870
| ML17328A870 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 01/24/1991 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML17328A869 | List: |
| References | |
| NUDOCS 9102010171 | |
| Download: ML17328A870 (15) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION..
WASHINGTON, D. C. 20555
", 9j020j0j7j 9j0july
SAFETY EVALUATION BY THE OFFICE OF THE NUCLEAR REACTOR REGULATION OF THE SECOND TEN-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLANS INDIANA MICHIGAN POWER COMPANY DONALD C.
COOK NUCLEAR PLANT UNITS 1
AND 2 DOCKET NOS.
50-315 AND 50-316 INTRODUCTION Technical Specifications 4.0.5 for the Donald C.
Cook Nuclear Plant, Units 1
and 2, state that the surveillance requirements for Inservice Inspection and Testing of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Class 1,
2 and 3 components shall applicable as follows:
Inservice Inspection of ASME Code Class 1, 2, and 3 components shall be performed in accordance with Section XI of the ASME Code and applicable Addenda as required by Title 10 of the Code of Federal Regulations, Section 50.55a(g),
except where specific written relief has been granted by the Commission pursuant to 10 CFR 50.55a(g)(6)(i).
Pursuant to 10 CFR 50.55a(g)(4),
ASME Code Class 1, 2, and 3 components (including supports) shall meet the requirements, except the design and access provisions and the preservice-examination requirements, set forth in the ASME Code,Section XI, "Rules for Inservice Inspection -of Nuclear Power Plant Compc" nts," to the extent practical within the limitations of design,
- geometry, and m.
erials of construction of the components.
The regulations require that inservice examination of components and system pressure tests conducted during the second ten-year interval shall comply with the requirements in the latest edition and addenda of Section XI of the ASME Code incorporated by reference in 10 CFR 50.55a(b) on the date 12 months prior to the start of the 120-month inspection interval, subject to the limitations and modifications listed therein.
The components (including supports) may meet the requirements set forth in subsequent editions and addenda of the ASME Code incorporated by reference in 10 CFR 50.55a(b) subject to the limitations and modifications listed therein.
Pursuant to 10 CFR 50.55a(g)(5), if the licensee determined that conformance with an examination requirement of Section XI of the ASME Code is not practical for his facility, information shall be submitted to the Commission in support of that determination and a request made for relief from the ASME Code requirement.
After evaluation of the determination, pursuant to 10 CFR 50.55a(g)(6)(i),
the Commission may grant relief and may impose alternative requirements that are determined to be authorized by law, will not endanger life of property or the common defense and security, and are otherwise in the public
- interest, giving due consideration to the burden upon the licensee that could result if the requirements were imposed.
41 2.0 Indiana Michigan Power Company the licensee, has prepared the Second Yen-Year Interval loser vice Inspection ISI) Plans, dated December 31, 1985 and amended June I, 1987, to meet the requirements of the 1983 Edition, Sumaer 1983 Addenda of Section XI of the ASME Boiler and Pressure Vessel Code, except that the extent of examination of Class 1 and 2 piping welds has been determined by the
'974 Edition through Summer 1975 Addenda as permitted and required by 10 CFR 50.55a(b).
The staff, with technical assistance from its contractor, Idaho National Engineering Laboratory
( INEL), has evaluated the Second Ten-Year Interval Inservice Inspection Program Plans, with amendments, additional information related to the plans, and the requests for relief from certain ASIDE Code requirements determined to be impractical to perform at the Donald'.
Cook Nuclear Plant, Units 1 and 2,= during the second inspection interval.
EVALUATION 3.0 The ISI Program Plans have been evaluated for (a) application of the correct Section XI Code edition and addenda, (b) compliance with examinations and test "
requirements of Section XI, (c) acceptability of the examination
- sample, (d) compliance with commitments, made by the licensee prior to plant operation, (e) correctness of the application of system or component examinations exclusion criteria, and (f) adequate information in support of request for relief from impractical Section XI Code requirements.
The staff has determined that the licensee's ISI Program Plans reflect compliance with the requirement listed above.
The information provided by the licensee in support of requests for relief from impractical requirements has been evaluated and the bases for granting relief from those requirements are documented in the attached INEL Technical Evaluation Reports (TERs),
EGG-SD-7799 and EGG-SD-7798, for Units 1
and 2, respectively.
We concur with the findings and recommendations contained in the TER.
Tables 1 and 2 present a
summary of the reliefs requested and the status of the requests as determined by the staff.
CONCLUSION Pursuant to 10 CFR 50.55a(g)(6)(i) and 50.55a (a)(3)(i), the staff has determined that for certain components for which relief is requested, the core requirements are impractical or that alternative testing provides an acceptable level of quality or safety.
For those components, relief has been granted.
Such relief is authorized by law, wi 11 not endanger life or property or the common defense and security and is otherwise in the public interest, giving due consideration to the burden that could result if the requirements were imposed on the facility.'he staff concludes that the Donald C.
Cook Nuclear Plant, Units 1
and 2, Second Ten-Year Interval Inservice Inspection Program Plans,'ated December 31,
- 1985, and as amended June 1, 1987 along with the additional information provided and specific written reliefs constitute the basis for compliance with 10 CFR 50.55a(g) and Technical Specification 4.0.5 and is therefore acceptable.
Date: january 24, 1991 incipal Contributor:
Deborah Jackson, Et'TB George Johnson, EMTB
1'l tw
D. C. Cook, unit I Page I of 4 TABLE 1 D.
C.
COOK UNIT 1
SUMMARY
OF RELIEF RE UESTS Relief Request Humher RR-I Itern Exam.
System or No.
Cat.
~Com onent 812.10 8-L-I RC Pump Volume or Area to be Examined Reactor Coolant Pump casing weld I-RCP Requir ed Method Volumetri c Licensee Proposed Alternative 100K surface examination of the external surface in addition to a visual (VT-2) examination during hydro test Relief Request Status Granted*
RR-I RR-I 812.20 8-L-2 RC Pump 86.190 8-G-I RC Pump Reactor Coolant Pump casing internal surfaces Reactor Coolant Pump flanges Visual (VT-3)
Visual (VT-I)
Visual (VT-2) examination during hydro test; VT-3 if disassembled for maintenance Visual (VT-2) examination during hydro test; VT-I if disassembled for maintenance Granted*
Granted*
- Provided code required exams are performed if RC Pump disassembled for maintenance
0.
C. Cook, Unit 1 Page 2 of 4 TABLE 1 D.
C.
COOK UNIT 1
SUMMARY
OF RELIEF RE UESTS Relief Request Number RR-2 RR-3 Itern Exam.
System or C5.21 C-F Class 2
Piping C5.21 C-F Class 2
Piping Volume or Area to be Examined Pipe-to-flued head weld 01S (Feedwater System) and flued head-to-pipe weld 12F (Ha in Steam System)
Pipe-to-flued head weld 10F (Nafn Steam System)
Required Method Volumetric and Surface Volumetrfc and Surface Licensee Proposed Alternative Volumetric and surface examination of 1st accessible weld outside each penetration Volumetric and su~face examination of one adjacent weld in one Nafn Steam line Relfef Request Status Granted/
provided visual exam'erformed during hydro Granted/
provided vfsua 1.
exams performed during hydro RR-P2 Chemical 8
Volume Control System (CVC):
Class 1
CVC piping between valves HARV-51 and CS-325; Class 2
CVC piping between valves HARV-62, CS-328L4, CS-326, and CS-327; and Class 2 CVC piping between valves HARV-61 and CS-328LI Hydro test per IMB-5000 (Class 1) and IWC-5000 (Class 2) pedro tests will be performed at a pressure of 2280 psig and a temperature 500F or greater Granted
)
I
D. C. Cook, Unit 1
Page 3 of 4 TABLE 1 D.
C.
COOK UNIT 1
SUMMARY
OF RELIEF RE UESTS Relief Request Number Itern Exam.
No.
Cat.
System or
~Com onent Volume or Area to be Examined Required Method Licensee Proposed Alternative Relief Request
. Status RR-P4 RR-PI RR-P3 Boron Injection Loop No.
1 - between valves IHO-51 and SI-142L1; Boron Injection Loop No.
2 - between valves IHO-52 and SI-142L2; Boron Injection Loop No.
3- - between valves IHO-53 and SI-142L3; and Boron Injection Loop No. 4 - between valves IHO-54 and Sl-142L4 Accumulator No.
1 discharge piping-between valves IM0-110, SI-166-1, IRV-115, and SI-168-1; Accumulator No. 2 discharge piping-between valves IH0-120, SI-166-2, IRV-125, and SI-168-2; Accumulator No. 3 discharge piping-between valves IM0-130, SI-166-3, IRV-135, and SI-168-3; and Accumulator No.
4 discharge piping-between valves IM0-140, SI-166-4, IRV-145, and SI-168-4 Chemical 5 Volume Control System-between valves QRV-112, QRV-160, QRV-161, and QRV-162 Hydro test per IWB-5000 (Class 1)
. Hydro test per IMC-5000 (Class 2)
Hydro test per IMC-5000
(.Class 2)
A hydro test will be performed at a pressure of 2280 psfg and a
temperature of 500F or greater A hydro test wi'll be performed at a
pressure of 2280 psig and a
temper ature of 500F or greater A hydro test will be performed at a
pressure of 2280 psig Granted Granted Granted
D. C.
Cook, Unit I Page 4 of 4 TABLE 1 D.
C.
COOK UNIT 1
SUMMARY
OF RELIEF RE UESTS Relief Request Number Item
- Exam.
System or Volume or Area to be Examined Required Method Licensee Proposed Alternative Relief Request Status RR-P5 Auxiliary Spray and Chemical and Volume Control System - between valves HARV-51, gRY-61, HARV-62, CS-326, and CS-322
. Hydro test.
per IWC-5000 (Class 2)
A hydro test
'ill be performed at a pressur e of 2800 psig Granted
D. C. Cook, Unit 2 Page 1 of 5 TABLE 2 D.
C.
COOK UNIT 2
SUMMARY
OF RELIEF-RE UESTS Relief Request Number Itern Exam.
System or Volume or Area to be Examined Required Method Licensee Proposed Alternative Relief
..Request Status RR-1 B1.21 B-A Reactor Pressure Vessel Closure Head Dollar Plate Held No. 2-CHC-02 and Lower Head Dollar Plate Meld No. 2-LHC-Ol Volumetri c VT-2 visual examinations during hydro test and volumetric examination of the accessible length of one closure head meridional weld Granted RR-2 81.40 B-A Reactor Pressure Vessel Closure Head-to-Flange Meld 2-CHC-01 Volumetri c and Surface Volumetric (UT) exam to extent practical and 100K surface examination Granted
'R-3 B3.110 B-D Pressurizer Surge Nozzle-to-Lower Head Meld 2-RC-21 Volumetric.
Volume tri c examination from vessel side only and a
100K surface examination Granted
1 I
D. C. Cook, Unit 2 Page 2 of 5 TABLE 2 D.
C.
COOK UNIT 2
SUMMARY
OF RELIEF RE UESTS Relief Request Number RR-4 Item Exam.
System or No.
Cat.
~Con onent BI2.10 8-L-I RC PU@p Volume or Area to be Examined Reactor Coolant Pump casfng weld I-RCP Required Method Volvmetr fc Licensee Proposed Alterna tive 100K surface examination of the external svrface in addition to a vfsvaI (VT-2) examination during hydro test Relief Request Status Granted*
RR-4 RR-4 B12.20 B-L-2 RC Pump B6.190 B-G-I RC PUAlp Reactor Coolant Pump casing internal surfaces Reactor Coolant Pump flanges Visual (VT-3)
Visual (VT-I)
Visual (VT-2) examination durfng hydro test; VT.-3 ff disassembled for maintenance Visual (VT-2) examination dvring hydro test; VT-I if disassembled for maintenance Granted*
Granted*
- Provfded Code-requfred exams are performed ff RC Pump disassembled for maintenance.
D. C. Cook, Unit 2 Page 3 of 5 TABLE 2
. D.
C.
COOK UNIT 2
SUMMARY
OF RELIEF RE UESTS Relief Request Number RR-5 RR-6 Item-Exam.
System or C5.21 C-F Class 2
Piping C5.21 C-F Class 2
Piping Volume or Area to be Examined Pipe-to-f lued head weld 16S (Feedwater System) and flued head-to-pipe weld 13F (Main Steam System)
Pipe-to-flued head weld 11F (Main Steam System)
Required Method Volumetri c and Surface Volumetr ic and Surface Licensee Proposed Alternative Volumetric and sur face examination of 1st accessible weld outside each penetration Volumetr ic and surface examination of one adjacent weld in one Hain Steam line Relief Request Status Granted/
provided visual exams performed during hydro Granted/
provided visual exams performed during hydro RR-P2 Chemical 8 Volume Control System (CVC):
Class 1
CVC piping between valves qRV-51 and CS-325; Class 2
CVC piping between valves HARV-62, CS-328L4, CS-326, and CS-327; and Class 2
CVC piping between valves qRV-61 and CS-328Ll Hydro test per IWB-5000 (Class 1) and IMC-5000 (Class 2)
Hydro tests will be performed at a
'ressure of 2280 psig and a temperature of 500F or gr eater Granted
0.
C. Cook, Unit 2 Page 4 of 5 TABLE 2 D.
C.
COOK UNIT 2
SUMMARY
OF RELIEF RE UESTS Relief Request Number Item Exam.
No.
Cat.
System or
~Con onent Volume or Area to be Examined Required Method
. Licensee proposed Alternative Relief Request
. Status RR-P4 RR-Pl RR-P3
'oron Injection Loop No.
1 - between valves IMO-51 and SI-142LI; Boron Injection Loop No.
2 - between
. valves IMO-52 and SI-142L2;
'Boron Injection Loop No.
3 - between valves IMO-53 and SI-142L3; and Boron Injection Loop No.
4 - between valves IMO-54 and SI-142L4 Accumulator No.
1 discharge piping-between valves IM0-110, SI-166-1, IRV-155, and SI-168-1; Accumulator No.
2 discharge piping-between valves IM0-120, SI-166-2, IRV-165, and SI-168-2; Accumulator No. 3 discharge piping-between valves IM0-130, SI-166-3, IRV-175, and SI-168 and Accumulator No.
4 discharge piping-between valves IM0-140, SI-166-4, IRV-185, and SI-168-4 Chemical 8 Volume Control System-between valves HARV-112, HARV-160, qRV-161, and QRV-162 Hydro test per 1MB-5000 (Class 1)
Hydro test per INC-5000 (Class 2)
Hydro test per IMC-5000 (Class 2)
A hydro test will be performed at a
pressure of 2280 psig and a
temperature of 500F.or greater A hydro test will be performed at a
pressure of 2280 psig and a
temperature of 500F or greater A hydro test will be performed at a
pressure of 2280 psig Granted Granted Granted
0.
C.
Cook, llnit 2 Page 5 of 5 TABLE 2 D.
C.
COOK UNIT 2
SUMMARY
OF RELIEF RE UESTS Relief Request Number Item Exam.
System or Volume or Area to be Examined Required Method Licensee Proposed Alternative Relief Request Status RR-P5 Auxiliary Spray and Chemical and Volume Control System - between valves gRY-51, HARV-61, HARV-62, CS-326, and CS-322 flydro test per IMC>>5000 (Class 2)
A hydro test will be performed at a
pressure of 2800 psig Granted