ML20091K997
| ML20091K997 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/14/1992 |
| From: | Joshua Wilson TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-88-010, IEB-88-10, NUDOCS 9201270188 | |
| Download: ML20091K997 (6) | |
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swa L wwy, ye. e t w d' /1 m.h N A +w h January 14, 1992 U.S. Nuclear Regulatory Commission ATTH:
Document Control Desk Washington, D.C. 20555 Gentlement In the Matter of
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Docket No. 50-327 Tennessee Valley Authority
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SEQUOYAH NUCLEAR PIANT (SQN) - NRC BULLETIN 88-10, NONCONTORMING MOLDED-CASE CIRCUIT BREAKERS References 1.
TVA letter to NRC dated December 1.1, 1990 2.
WA letter to NRC dated June 27, 1990 3.
TVA letter to NRC dated March 20, 1 70 i
In response to Reporting Requirement 2_of_the subject bulletin, the enclosure of this submittal provides a-list of the molded-case circuit i
breakers replaced during the Unit 1 Cycle 5 tefueling outage. As allowed by Action 5 of the bulletin, TVA has opted to replace untraceable
. breakers in lieu of testing, in accordante with Action 7 of the
-Bulletin 88-10.
The replacement breakers meet the criteria of Action 7 i
of the bulletin and fulfill-the requirement, when combined with the previous replaced breakers listed in References 1 and 2 to replace all of the untraceable ciret.it breakets before e, rt-up from the second refuelinf outage beginning after March 1, 198s for Unit 1.
Please note thet Package No. 58.76, identified in u..
... e 3. was duplicated by Package'No. 35.02.
Subsequently, Package Po. 58.76 has been cancelled and superseded by Package No,'35.02, as shown in the enclosure. Also, Package No. 80.22 that previously supplied Auxiliary I
Waste Evaporator Panel 0-L-105B, as indicated in Reference 3, has been y
converted to a spare breaker through the modification process.
The end j..
device for this package.has been revised accordingly in the enclosure.
L Package No. 80.25 for Unit I was replaced in the Unit 2 Cycle 4 refueling outage and will be found in Reference 2.
j 9201270188 920114
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4 U.S. Nuclear Regulatory Consnission Page 2 January 14. 1992 No consultmentu are contained in this submittal.
Please direct questions concerning this issue to K. C. Weller at (615) 843-7527.
Sincerely, St%L J
1.. Wilson Enclosure cc (Enclosure):
Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission D-; White F1 t, North 11555 Rockville Pike Rockville, Maryland 20852 NRC Resident Inspector Sequoyah Nuclee' Plant 2600 Igou Ferry Road Soddy Daisy. Tennesseu 37379 Mr. B. A. Wilson, Project Chief U.S. Nuclear Regulatory Conunission Region 11 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
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i Page go, 2-12/17/91 SEQUOTAM NUCLEAR PLANT
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hRCB 88-10 REPLF E D MOLDED-CASE CIRCUIT BsEAKERS
.I ENCLOSURE BKT PKG RAT NO.
BOARD AC COMPARTMENT AFFECTED END DEVICE mar #ACTURER MR PART NO.
ING 35.02 480V REACTOR MOW BOARD 182-8 1-FCV-70-87-8 GEhERAL ELECTRIC TMED 136C15WL 15 COMPT 15E 40.30 480V REACTOR VENT BOARD 1A-A CONTAlmMEti PURGE EXMAUST FAN GENERAL ELECTRIC THED 136'00WL
- TOG COMPT 30 1A 40.40 480V REACTCR VENT BOARD 18-8 CONTAINMENT PURGE EXNAUST FAN ENERAL ELECTA!C TMED 136100WL
- 100 COMPT 2A 18 40.70 a.80V REACTOR VENT BOAR' 1A-A CONTAthMENT PURGE SUPPLY FAN GENERAL ELECTRIC ThED T36050WL
- 50 CDMPT 9C 1A 40.80 480V REACTOR VENT BOAll 18-8 CONTAINMENT PURGE SUPPLY FAN GEM RAL ELECTRIC THED 136050WL
- 50 COMPT 7C 18 52.36 480V REACTOR MOV BOAP1 1A2-A RCP TMERMAL BARRIER RETURN GEKERAL ELECTRIC TMED T36015WL
- 15 j
COMPT 1&E1 CONTA!KwENT !SLN VLV 1-FCV-070-090 58.78 480V REACTOR MOV BOARD 132-8 RCP THERaWLL BARRIER ENERAL ELECTA!C THED 136015WL
- 15 4
COMPT 15E2 CONTAIMMENT ISLN VLV 1-FCV-070-134 80.06 125VDC VITAL BATTERY BOARD IV, BGtIC ACID EVAPORATOR PACKAGE WESTINGHOUSE BFB 20*5 15 PNL 3, stR 315 8, 0-L-Is 80.07 125VDC VITAL SATTERY BOARD IV, COMMON CONTROL & SERVICE A!R WESTIEGNOUSE MFS 20T5 15 PNL 3 BKR 315 COMP ALT FDR 4
80.12 480V DSL AUX BOARD 1Al-A, DSL GEN 1A-A MUTFLER EXMAUST ECRAL ELECTRIC TED 136020WL 20 CCMPT 6D FAN 1
80.17 125VDC VITA.L BATTERY BOARD SPARE SKR WEST!uGNOUSE MFS 2015 15 til, PNL 2, BKR 223 80.22 125VDC VITAL SATTERY SOARD SPARE WESTINGMOUSE MF8 2015 15 III, PNL 2, BKR 224 80.29 125VDC VITAL BATTERY BOARD II, CDM CONT & SERV AIR WESTINGNOUSE PF8 2015 15 4
PNL 3, BKR 315 CD89RESSOR-NORMAL ?DR l
l 80.60 480** RE4CTOR MOV BOARD 1A2-A, COMP 0hENT C00LikG SYSTEM EMERAL ELECTRIC TMED 136015WL 15 i
COM!*T 12E CONTA!kMENT ISOLATI0h VALVE 1-FCV-70-141 80.61 480V REACTOR MOV BOAR 3 182-S.
LouER CONTAlmMENT 10 COOLER ENERAL ELECTRIC T14D 136015WL 15 COMPT SE SUPPLY ISOLATION VLV j
1-FCV-67-899 a
Page No.
3 12/1T/91 SEQUOYAM WJCLEAR PLAuf WRCB 88-10 REPLACED MOLDED-CASE CIRCU!T GREAERS ENCLOSUFE BER
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BOARD AND COMPARTMENT.
AFFECTED END DEVICE MAARIFACTURER MTR PnRT NO.
ING 80.62 480V REACTOR MOV BOARD 152-B, LOWER CONTAINMENT 18 COOLER ENERAL ELECTRIC ThtD 13601S*JL 15 j
COMPT 6E SL w.Y IS0tATION VLV 1
1-TCV-67-90s 80.63 480V REACTOR MOV 90*.RD 1A2-A, LOWR CONTAINMENT TC COOLER EWERAL ELECTRIC inED 136015WL 15 COMPT 3E S M Y ISOLATION VLV 1-FCV-67-105A 80.64 480V REACTOR MOV 80ARD TA2-A, LOWER CONTAINMENT 1A COOLER EMERAL ELECTRIC TnED13601SWL 15 COMPT 4E SUPOLY ISOLATION VALVE 1-FCV-67-106-A I
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