ML19290C057
| ML19290C057 | |
| Person / Time | |
|---|---|
| Issue date: | 01/08/1980 |
| From: | NRC COMMISSION (OCM) |
| To: | |
| References | |
| REF-GTECI-A-24, REF-GTECI-EL, TASK-A-24, TASK-OR NUDOCS 8001090103 | |
| Download: ML19290C057 (11) | |
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n5 PURPOSE OF BULLETIN 79-01 IDENTIFY ELECTRICAL EQUIPMENT REQUIRED TO FUNCTION UNDER ACCIDENT CONDITIONS AND DETERMINE ADEQUACY OF ENVIRONMENTAL QUALIFICATION 1730'210 e
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BULLETIN OBJECTIVES
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EXPEDITE LICENSEE REVIEW OF ELECTRICAL EQUIPMENT QUALIFICATION o
REQUIRE PROMPT EVALUATION AND REPORT OF UNQUALIFIED EQUIPMENT o
REQUIRE DOCUMENTATION OF QUALIFICATION OF EQUIPMENT o
COMPONENT DESCRIPTION ACCIDENT ENVIRONMENT
- QUALIFICATION ENVIRONMENT MANNER OF QUALIFICATION o FEEDBACK GENERIC ISSUES TO ALL FACILITIES e
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STATUS OF QUALIFICATION DOCUMENTATION o ELEVEN UNDER SEP REVIEW o FOUR RECEIVED EXTENSION o TWENTY-SEVEN PRELIMINARY SCREENING o THIRTY-0NE TOTAL RESPONSES RECEIVED TO DATE o FIFTY-EIGHT TOTAL RESPONSES REQUIRED 1730 212 e
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INTERIM REVIEW o PERF0P.MED BY TASK GROUP REGIONAL PERSONNEL IE:HQS NRR o FSAP COMMITMENTS FOR QUALIFICATION o VERIFICATION OF REPORTS BY INSPECTIONS
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IE BUU E IN 79-01 TASK ORGANIZATION IE NRRDDR
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'r REQUEST ADDITIONAL PREPARE GUIDELINES NO INFO TO CCAPLETE ACCEPTANCE CRITERIA FOR REPORTS AS REQUIRED FINAL REVIEWS gg Y
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TRANSFER EXCEPTIONS E MR i
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IE BtLLEilft 79-0124 ilR. REPORTS OF UN0lRIFIED GES IE EQUIPtDff LD N
C0tP0tDIT ID. OF PLMTS REPORTING om NAMCO VALVE STEM MOUNTED LIMIT 14 PLANTS AT 9 DIFFERENT STATIONS I
SWITCHES CONTAlt#4ENT ISOLATION VALVE 3 PLANTS AT 1 STATION OPERATORS INSULATED INSTRLiiENT AND CONTROL 2 PLANTS AT 1 STATION CABLE TERMINAL LUGS ALUMINtI4 LIMIT SWITCH 110USINGS 2 PLANTS AT 1 T11REE UNIT STATION ON CONTAINMENT ISOLATION VALVES ASCO PILOT SOLENDID VALVES FOR 10 PLANTS AT 7 DIFFEREf6 STATIONS MISC. VALVE AIR OPERATORS o
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SUITBRY NO STARIS OF m
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o 31 PLRITS HAVE REPORTED UNQtMLIFIED EQUIPMENT
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0 ALL HAVE AGREED TO REPLACE EQUIPMENT WHERE A SAFETY FUNCTION IS AFFECTED.
O SIX P13JITS HAVE C0tPLETED REPLACEMEllT ALL WILL BE COMPLETED // NEXT REFUELit1G CONTINUED OPERATION PENDING REPLACEME'IT IS BASED ON A PLAtlT SPECIFIC EVALUATION OF A COMBINATION OF THE FOLLOWING FACTORS, O REDUNDANT / DIVERSE COMPONEffT ItPORTANCE OF THE FUNCTION (Q INDICATION Ot1LY) 0 O LOCKING COMPONENT IN THE SAFETY POSITION O ADMINISTRATIVE ACTION N1D OPERATING PROCEDURES 0 RECENT OPERABILITY TESTS NJD INSPECTIONS O POST ACCIDENT MITIGATING ACTIONS AVAILABLE O Fall SAFE DESIGri FEATURES.
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GUIDELINES NO ACCEPTANCE CRITERIA FOR x
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O WILL BE DEVELOPED BY DDR IN CONJUNCTION WITil A PRELIMIARY REVIEW OF SELECTED LICENSEE 120 DAY RESPONSES M4D SEP ~INFORMATION 0 GENERAL ACCEPTAtlCE GUIDELINES L
E ESTABLISHED WITH PARTICULAR EMPHASIS ON 111E FOLLOWING ASPECTS OF 1
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SERVICE C0t4DITlot4S RADIATION TEST SEQUENCE AGING MARGIN TESTING M1D ANALYSIS MFTHODS e
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E00lf1ENT 00ALIFICATION AGitra co REG GUIDE 1.89 REQUIRES:
N O IEEE Sm 323-19711 INCLUDING AGING FOR SER'S ISSUED O
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0 AGING NOT REQUIRED FOR SER'S ISSUED BEFORE JULY 13 1979 ONGOING AGitG PROGRN4S:
NRC C0J [jf% TORY RESEARCH PROGRN4 STUDIES DISCUSSED IN N
O NUREG U9.J SINGLE EtNIR0t#iENT CONFORMED EtNIR0tFEffr RATE EFFECTS ALTERUATE DNMGE INDICATORS O SEP AGING REVIEWS DISCUSSED IN NUREG @58 OPERATING EXPERIENCE fMINTENAtJCE AND SURVEILLNjCE RECORDS SPECIFIC CONSIDERATION OF CABLE AGING INCLUDING ONSITE INSPECTIONS S
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8 exception.
As called out in IE Bulletin 79-OlA, we have determined that ASCO solenoids are used for the containnent purge valves. We have deter-rdned that this is not a significant safety issue because if the solenoids, half of which are inside of containment, vould be required to operate to close the purge valves, then the fact that a purge was in progress at the time of a LOCA event would mean that the purge lines would serve to lessen the severity of the post-LOCA environnent, thus ensuring that the solenoid valves could then perforr their design function at less than full post-LOCA conditions.
Additionally, the solenoid valves for the outside purge valves are outside of containnent and would not see those conditions.
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