ML17296A936
| ML17296A936 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 08/21/1980 |
| From: | Houston M Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8008280365 | |
| Download: ML17296A936 (78) | |
Text
'Docket Hos. 50-528/529/630 AUGgg t@0 APPLICANT:
Arizona Public Service FACIl'.'ITY:
Palo Verde Units 1, 2 and 3 SUNlARY OF NEETING HELD AUGUST 16, 'l980, TO DISCUSS THE RELIABILITYOF AUXILIARYFEEDllATER SYSTB5 A meeting was held on August 16, 1980, fn Bethesda be@teen members of the HRC staff and representatives of Arizona Public Service along ivfth their consultants from Bechtel.
A listing of those in attendance fs attached as.
The topic discussed was the reliability of auxiliary fee@eater systems for Palo Verde Units 1, 2 and 3.
Summa of tteetin Prior to the meeting, Arizona Public Service provided copies of a handout (Enclosure 2) to members of the Auxiliary Systems Branch (DSI).
The auxiliary fee&ater system design cases and an associated relfabflfty study'for Palo Verde 1, 2 and 3 are described fn the enclosure.
The major portion of the meeting vias a discussion bett<een Tahfguchf (Bechtel) and Cunningham (NRC) on the methodology used in performing the reliability studies.
General topics included Fleming's Beta factor, cotton cause, human error. staggered shift testing. spurious signal effects, and operator recovery time.
There appeared to be a good understanding about her< these.topics.Mere used fn the present reliobflfty study and hog's they could be factored into future studies.
Up to now, the Probabf1istfc Analysis Staff (RES) has been performing the t/RC evaluation of the risk assessment and relfabi'ifty studies.
This function fs being transferred to the Reliability and Risk Assessment Branch (HRR/DST).
Due to the 'limIited staff resources in DST, a good portion of this review effort will be contracted out to Sandia.
In regard to the four design cases, Bechtel had not yet arrived at a final conclusion to present to APS.
Case 3 s>ith the addition of a third safety grade pump ~iou1d be the most dffficult to achieve. It fs doubtful that a fin'al conclusion Mould be forthcoming in the meetings scheduled at Phoenix for.
August 21 and 22.
The Phoenix meetings
@f11 be devoted mostly to understanding the reliabi'lfty stuQ.
Enclosures 5 cc:
See next'age H. De n Houston.
Prospect Manager Licensing Branch N Division of Licensing OFFICE) 2 l8 uston:lb"
.8/4/8O SURNAME DATE)
NRC FORM 318 (9.7G) NRCM 0240
-" 800 280 g6
'AU.S. GOVERNMENT PRINTING OFFICE: 1979 289-389
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AUG 21 1980 MEETINB SUMIIRRY DISTRIBUTION Docket File NRC PDR Local PDR TERA NRR Reading LB@f Reading H. Denton E.
Case D. Eisenhut R. Purple B. J.
Youngblood A. Schwencer Branch Chief, LB¹3 J. Miller G. Lainas R. Vollmer J.
P. Knight R.
Bosnak F. Schauer R.
E. Jackson Project Manager
- Attorney, OELD OIE (3)
ACRS (16)
R. Tedesco D, Tondl NRC Partic~iants:
BCC:
Applicant 8 Service List G.
V.
S.
V.
Z.
W.
D.
R.
Lear Noonan Pawlicki Benaroya Rosztoczy Haass MulTer Ballard Regan W.
D. Ross P.
Check R. Satterfield
- 0. Parr F.
Rosa W. Butler W. Kreger R. Houston T. Murphy L. Rubenstein Speis W. Johnston J. Stolz S.
Hanauer W. Gammill R. Mattson
.F. Schroeder D. Skovholt M. Ernst R. Baer C. Berlinqer K. Kniel G. Kniahton Branch Chief, Rel.
8 B. Grimes, EPPO H. Collins, EPPO F. Pagano, EPLB Emergency Preparedne D.>k~s~
Risk Assessment Br.
ss Development Branch
~~
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P0 UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 2056S Docket Nos. 50-528/529/530 AUG 21 1980 APPLICANT:
Arizona Public Service FACILITY:
Palo Verde Units 1, 2 and 3
SUMMARY
OF MEETING HELD AUGUST 15, 1980, TO DISCUSS THE RELIABILITYOF AUXILIARY FEEDMATER SYSTEMS A meeting was held on August 15, 1980, in Bethesda between members of the NRC staff and representatives of Arizona Public Service along with their consultants from Bechtel.
A listing of those in attendance is attached as Enclosure 1.
The topic discussed was the reliability of auxiliary feedwater systems for Palo Verde Units 1, 2 and 3.
Summar of Meetin Prior to the meeting, Arizona Public Service provided copies of a handout (Enclosure
- 2) to members of the Auxiliary Systems Branch (DSI).
The auxiliary feedwater system design cases and an associated reliability study for Palo Verde 1, 2 and 3 are described in the enclosure.
The major portion of the meeting was a discussion between Taniguchi (Bechtel) and Cunningham (NRC) on the methodology used in performing the reliability studies.
General topics included Fleming's Beta factor, common cause, human error, staggered shift
- testing, spurious signal effects, and operator recovery time.
There appeared to be a good understanding about how these topics were used in the present reliability study and how they could be factored into future studies.
Up to now, the Probabilistic Analysis Staff'RES) has been performing the NRC evaluation of the risk assessment and reliability studies.
This function is being transferred to the Reliability and Risk Assessment Branch (NRR/DST).
Due to the limited staff resources in DST, a good portion of this review effort will be contracted out to Sandia.
In regard to the four design cases, Bechtel had not yet arrived at a final conclusion to present to APS.
Case 3 with the addition of a third safety grade pump would be the most difficult to achieve.
It is doubtful that a final conclusion would be forthcoming in the meetings scheduled at Phoenix for August 21 and 22.
The Phoenix meetings will be devoted mostly to understanding the reliability study.
Enclosures 8 cc:
See next page M. Dean Houston, Project Manager Licensing Branch 82 Division of Licensing
,8 6 0 8 2 8 0 y,'J 0 I
'i
Hr. E. E.
Van Brunt, Jr.
Vice President - Construction Projects Arizona Public Service Company P. 0.
Box 21666 Phoenix, Arizona 85036 I
cc:
Arthur C. Gehr, Esq.
Snell
& Wilmer 3100 Valley Center Phoenix, Arizona 85073 Charles S. Pierson Assistant Attorney General 200 State Capitol 1700 West Washington Phoenix, Arizona 85007 David N. Barry, Esq., Senior Counsel Charles R. Kocher, Esq., Assistant Counsel Southern California Edison Company P. 0.
Box 800
- Rosemead, California 91770 AUG ~1 19SO Dr. Stanley L. Dolins Assistant Director Energy Programs (OEPAD)
Office of the Governor 1700 West Washington Executive Tower - Room 507 Phoenix, Arizona 85007 William Primm Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Resident Inspector Palo Verde/NPS U.S. Nuclear Regulatory Commission c/o TTL/LGX.
Luke Air Force Base, Arizona 85309
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'NCLOSURE 1
ATTENDANCE LIST Au ust 15, 1980 NRC N.
D. Houston D. Sells
- 0. Parr J.
Wermiel M. Cunningham L. Huang N. Fior avante APS J. Allen B. guinn Bechtel D. Keith G. Kopchinski T. Taniguchi L. Booth
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DESIGN CASES FOR llUREG 0655 RELIABILITY STUDY AUXILIARYFEEDWATER SYSTEM o
CURRENT PVNGS DESIGN o
1 SAFETY RELATED TURBINE DRIVEN AUXILIARYFEEDHATER PUMP o
1 SAFETY RELATED NOTOR DRIVEN AUXILIARYFEEDWATER PUIV o
1 NON-SAFETY RELATED NOTOR DRIVEN AUXILIARYFEEDWATER PUMP (NON 1E POWERED, MANUAL START)
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2 SAFETY RELATED MOTOR DRIVEN AUXILIARYFEEDWATER PUMPS o
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RELIASILITYCHARACTERIZATIONSFOR AFVYS OESIGNS IN PLANTS USING THE COMBUSTION ENGINEERING NSSS TRANSIENT EVENTS LMFW/LOOP LMFW/LOSS OF ALLAC PLANTS PALO VERDE CASE 'I LOW MEO HIGH EXT D SCAI.E I.OW MEO HIGH LOW MED NIGH PALO VERDE CASE 2 PALO VERPE CASE 2A PALO VERDE CASE 3 CALVERTCLIFFS PALISADES MAINEYANKEE MILLSTONE ST. LUCIE ARK. NUC. ND. 2 FT. CALHOUN
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