ML20056F086

Summary of 930714 Meeting W/Westinghouse Representatives in Rockville,Md Re AP600 Main Control Room & Technical Support Habitability.List of Attendees Encl

ML20056F086
Person / Time
Site:	05200003
Issue date:	08/09/1993
From:	Hasselberg F Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 9308260042
Download: ML20056F086 (4)

Text

[f*"Cg

[ h.

k UNITED STATES gAggg[f j

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001

,5 August 9, 1993 i

4....+

Docket No.52-003 APPLICANT: Westinghouse Electric Corporation PROJECT:

AP600

SUMMARY

OF MEETING TO DISCUSS AP600 MAIN CONTROL ROOM (MCR) AND TECHf4ICAL SUPPORT CENTER (TSC) HABITABILITY On July 14, 1993, members of the Office of Nuclear Reactor Regulation (NRR) staff met with Westinghouse representatives in Rockville, Maryland, to discuss MCR and TSC habitability systems. Westinghouse presentations included the non-vital heating, ventilation, and air conditioning (HVAC) system and the passive MCR emergency habitability system (VES).

Westinghouse stated that it had performed a basic job task analysis to determine the number of persons expected to be needed in the MCR during emergency response operations.

Requirements for stored emergency breathing air and the MCR's projected heatup rate during passive plant emergency response were based on this analysis. Westinghouse did not discuss projected humidity changes in the MCR during extended VES operations.

The NRR staff requested more information on Westinghouse's plans to provide an operable (functional) TSC to support the MCR staff during periods when passive safety functions (such as the VES) would be called upon to operate.

According to Westinghouse, the TSC is provided with power and HVAC from non-vital ac power sources only.

Therefore, upon a loss of non-vital ac power, the TSC would be neither functional nor habitable.

The NRR staff pointed out that in accordance with NUREG-0676, if the TSC is not functional during an emergency, TSC functions are to revert to the MCR. Westinghouse has not indicated that it has considered the impact of TSC functions reverting to the MCR in the design of the passive MCR emergency habitability system.

The staff has prepared several requests for additional information (RAls) related to the functionality and habitability of the MCR and TSC during events involving the loss of non-vital ac power.

These RAls will be transmitted to Westinghouse in the near future.

e g\\

88P 988 M !!8888a NBC RLE CHMt CWY A

PDR

l

' August 9, 1993 i

Enclosed is a list of meeting attendees.

Copies of the handout materials presented by Westinghouse during this meeting were transmitted by letter to the staff on July 14, 1993.

Origbal Shned By-Frederick W. Hasselberg, Project Manager Standardization Project Directorate Associate Directorate for Advanced Reactors and License Renewal Office Of Nuclear Reactor Regulation l

Enclosure:

Attendees List cc w/ enclosure:

See next page DISTRIBUTION:

Docket File PDST R/F TMurley/FMiraglia DCrutchfield PDR RBorchardt FHasselberg TEssig TKenyon PShea JMoore, 15B18 GGrant, 17G21 EJordan, MNBB3701 EFox, 9H15 ACRS (11) (w/o encl)

HLi, 8H3 r

MChiramal, BH7 JBongarra, 10D24 JLyons, 801 CYLi, 8D1 JRaval, 8D1 JHayes, Jr, 10D4 i

1 0FC LA:PDST:ADAR PM: PDST;ADAR fSMDShApW NAME PShea htX FHassekg:tz fkssk i

DATE 08/(('93 08/9/93 08/$f/93

/

1 0FFICIAL RECORD COPY:

HABITSUM.RH 2

h l

P

l i

.s.

3 Docket No.52-003 Westinghouse Electric Corporation i

i i

l cc: Mr. Nicholas J. Liparulo i

Nuclear Safety and Regulatory Analysis Nuclear and Advanced Technology Division j

Westinghouse Electric Corporation P.O. Box 355 i

Pittsburgh, Pennsylvania 15230 Mr. B. A. McIntyre Advanced Plant Safety & Licensing l

Westinghouse Electric Corporation Energy Systems Business Unit Box 355 Pittsburgh, Pennsylvania 15230 Mr. John C. Butler Advanced Plant Safety & Licensing Westinghouse Electric Corporation Energy Systems Business Unit i

Box 355 Pittsburgh, Pennsylvania 15230 i

i Mr. M. D. Beaumont Huclear and Advanced Technology Division l

Westinghouse Electric Corporation l

One Montrose Metro 11921 Rockville Pike Suite 350 Rockville, Maryland 20852

[

i Mr. Sterling Franks l

U.S. Department of Energy t'

NE-42 Washington, D.C.

20585

{

Mr. S. M. Modro EG&G Idaho Inc.

j Post Office Box 1625 Idaho Falls, Idaho 83415

-l Mr. Steve Goldberg Budget Examiner j

725 17th Street, N.W.

Room 8002 i

Washington, D.C.

20503 l

Mr. Frank A. Ross U.S. Department of Energy, NE-42 Office of LWR Safety and Technology 19901 Germantown Road Germantown, Maryland 20874 l

I T'

9 a

t 1

i MEETING ATTENDEES July 14.1993 l

i NAME AFFILIATION j

i E. Fox NRC/PEPB

{

M. Chiramal NRC/HICB H. Li NRC/DRCH l

J. Bongarra NRC/HHFB j

J. Lyons NRC/SPLB i

C. Y. Li NRC/SPLB J. Raval NRC/SPLB J. Hayes, Jr.

NRC/PRPB F. Hasselberg NRC/PDST A. Sterdis Westinghouse l

B. McIntire Westinghouse i

J. Carrera Westinghouse l

R. Vijuk Westinghouse J. Grover Westinghouse l

D. McDermott Westinghouse D. O'Connor Bechtel H. Farin Bechtel W. Pasedag DOE K. Mali DOE Enclosure