ML20140E194
| ML20140E194 | |
| Person / Time | |
|---|---|
| Site: | 05200003 |
| Issue date: | 06/09/1997 |
| From: | Slosson M NRC (Affiliation Not Assigned) |
| To: | Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| References | |
| NUDOCS 9706110270 | |
| Download: ML20140E194 (3) | |
Text
.. - _ _ _.. _. _., _...._ _. _
i h X. O -(ilC.
puag\\
/
p UNITED STATES g
j NUCLEAR REGULATORY COMMISSION j
o WASHINGTON, D.C. 3068H001
,o June 9, 1997 i
i Mr. Nicholas J. Liparulo, Manager Nuclear Safety and Regulatory Analysis Nuclear and Advanced Technology Division Westinghouse Electric Corporation C
P.O. Box 355 l
Pittsburgh, PA 15230 l
SUBJECT:
REGULATORY TREATMENT OF NON-SAFETY RELATED SYSTEMS (RTNS$) FOR AP600 l
Dear Mr. Liparulo:
On May 6,1996, Westinghouse and the Nuclear Regulatory Commission (NRC) held a meeting on AP600 RTNSS issues. Discussions during this meeting included alternative methods of regulatory oversight the NRC staff would consider if Westinghouse wished to take credit for non-safety related systems within the RTNSS process and thereby expedite the staff's review'of issues related to the i
focused probabilistic risk assessment (PRA) and thermal-hydraulic uncertain-ties.. It is the staff's understanding that Westinghouse may be willing to recommend some administrative availability controls on certain non-safety related systems which the combined license (COL) applicant would be responsi-ble to implement. The staff would find such an approach acceptable provided the following conditions were met:
Details on the controls for the particular systems, including limiting conditions for operations, applicability of those conditions, required actions, completion times, and surveillance requirements are reviewed
)
and agreed to by the technical staff.
The system controls include commitment to satisfy the Maintenance Rule (650.65) for those systems (i.e. the RTNSS systems are within the scope j
of the Maintenance Rule).
In addition, the availability and reliability goals used in the resolution of the RTNSS issue must form the basis for the Maintenance Rule performance goals.
The above information is included in the AP600 standard safety analysis report (SSAR) and the associated design control document, together with a description of the RTNSS process and how the selected equipment is credited under the RTNSS process, and that a COL commitment is included in the SSAR to implement operating procedures consistent with the SSAR RTNSS availability controls. The staff would include a provision in the AP600 design certification rule which would make the RTNSS availability controls binding on an applicant or licensee that referenced the AP600 design certification.
g i
l
)
Westinghouse is requested to identify the specific systems which it plans to I
place under the above RTNSS controls and provide the detailed availability controls and maintenance rules goals which will be placed in the SSAR.
4 110057 NRC HLE CENTER COPY 9706110270 970609 PDR ADOCK 05200003 E
PDR a
d j -
3 Mr. Nicholas J. Liparulo June 9, 1997 If you have any questions regarding this matter, please contact the responsi-ble project manager, Mr. William Huffman, at (301) 415-1141.
Sincerely, l
original signed by:
Marylee M. Slosson, Acting Director Division of Reactor Program Management Office of Nuclear Reactor Regulation Docket No.52-003 cc: See next page 4
DISTRIBUTION:
]
Docket File PDST R/F MSlosson PUBLIC SWeiss TQuay TKenyon BHuffman JSebroksy DJackson JMoore, 0-15 818 W0ean, 0-5 E23 ACRS (11)
JNWilson GHolahan, 0-8 E2 i
BSheron, 0-7 D26 BBoger, 0-9 E4 GMizuno, 0-15 B18 CGrimes, 0-13 H15 Alevin, 0-8 E23 MCunningham, 0-10 E4 JLyons, 0-8 E23 JFlack, 0-10 E4 NSaltos, 0-10 E4 i
i t
I e
I i
j DOCUMENT NAME: A:RTNSS. POL y
T.
.i....,, in.i
. i.ai..
- i. in. 6. :
g,,v.ichoui.it.cnm.nti.ncio.ure
- E* = Copy with.rt.cnm.nt/.nciosur.
'N" = No copy 0FFICE PM:PDST:DRPM
.I D:JfSSA D:PDST:DRPM l OGC,K
/ ),
(A)D:DRPM NAME WCHuffman W O G Wfahan TQuay 'f)R>
L U
- / r/ RSlosson M DATE 05/11/97 05/t'y97 05/27/97 05/9/97 05/ct/970 0FFICIAL RECORD COPY
c.
Mr. Nicholas J. Liparulo Docket No.52-003 Westinghouse Electric Corporation AP600 cc: Mr. B. A. McIntyre Mr. Ronald Simard, Director Advanced Plant Safety & Licensing Advanced Reactor Programs Westinghouse Electric Corporation Nuclear Energy Institute Energy Systems Business Unit 1776 Eye Street, N.W.
P.O. Box 355 Suite 300 Pittsburgh, PA 15230 Washington, DC 20006-3706 Ms. Cindy L. Haag Ms. Lynn Connor Advanced Plant Safety & Licensing Doc-Search Associates Westinghouse Electric Corporation Post Office Box 34 Energy Systems Business Unit Cabin John, MD 20818 Box 355 Pittsburgh, PA 15230 Mr. James E. Quinn, Projects Manager LMR and SBWR Programs Mr. M. D. desumont GE Nuclear Energy Nuclear and Advanced Technology Division 175 Curtner Avenue, M/C 165 Westinghouse Electric Corporation San Jose, CA 95125 One Montrose Metro 11921 Rockville Pike Mr. Robert H. Buchholz Suite 350 GE Nuclear Energy Rockville, MD 20852 175 Curtner Avenue, MC-781 San Jose, CA 95125 t
Mr. Sterling Franks U.S. Department of Energy Barton Z. Cowan, Esq.
NE-50 Eckert Seamans Cherin & Mellott 19901 Germantown Road 600 Grant Street 42nd Floor Germantown, MD 20874 Pittsburgh, PA 15219
)
Mr. S. M. Modro Mr. Ed Rodwell, Manage;-
Nuclear Systems Analysis Technologies PWR Design Certification Lockheed Idaho Technologies Company Electric Power Research Institute Post Office Box 1625 3412 Hillview Avenue Idaho Falls, ID 83415 Palo Alto, CA 94303 Mr. Frank A. Ross Mr. Charles Thompson, Nuclear Engineer U.S. Department of Energy, NE-42 AP600 Certification Office of LWR Safety and Technology NE-50 19901 Germantown Road 19901 Germantown Road Germantown, MD 20874 Germantown, MD 20874 j
4