ML20128L720
| ML20128L720 | |
| Person / Time | |
|---|---|
| Site: | 05200001 |
| Issue date: | 02/18/1993 |
| From: | Janus M Office of Nuclear Reactor Regulation |
| To: | Fox J GENERAL ELECTRIC CO. |
| References | |
| NUDOCS 9302190355 | |
| Download: ML20128L720 (2) | |
Text
t w
Docket 52-001 February 18, 1993 NOTE T0:
J. Fox, GE FROM:
M. Janus, NRR/ADAR/PDST
SUBJECT:
ABWR DFSER CHAPTER 9 CHANGE MARKUP Enclo:ed for your informatian is a copy of the changes to DFSER Chapter 9 section 9.3.5 concerning the reliability of the suction valves for-the SLCS which we discussed on February 17, 1993.
./
( (( ACRS 15
(
NRR/ADAR/PDST X )
()
-ftRR/ 00Kd /ul hu 1
()
diPR7DC/ttbb
}
( ) -NRRfDE/ t t L6 1
() -diRRfDSSA/SFLB ~
l
( /)
1RR7035A/5RAB 1
(
NRR/DSSA/SCSB 1
( g NRR/DSSA/SPSB 1
()
HRR70Rit7RPEB-1
()
TRR/DRCii/Hitu' 1
()
fiRR/DRCH/HHFB 1
() dRR/CRSS/ PEPO--
1
()
ttRR/0RSS/PRFB 1
(
fiRRfDRSS/PSGB 1
(
NRC PDR 1
(
/' PNL-Stegbauer, E 1
(
NRR/ILPB/Suh, G.
I 6
s V) fd c\\
JJ
- 5 190037 ozt gi 9302190355 930218 PDR ADOCK 05200001 A
-___=_-_--_-_--______-_________---_:__--____________--_______--_--_____-
4 pressure boundary). Thus, the SLCS' meet's the requirements of GDC'2, " Design' Basis for Protection Against Natural Phenomena," and the' guidelines of-
'RG 1.29,_" Seismic Design Classification," Position C.l.
The secondary containment in which the system is located provides protection.
against external or internally generated missiles.= The SLCS is: separated from nonseismic system components-and from the effects-of breaks in.other high and--
moderate-energy piping systems -(see Section 3.5.1.2 and 3.6.1 of this report)-,
Thus, the SLCS meets the requirements of G00.4,
- Environmental and Missile 1
Design Bases."
To assure the availability of the SLCS, two sets of the components required-to actuate the system (pumps and injection valves) are provided in parallel D,
redundancy.
The injection portion of the system can be functionally tested by injecting demineralized water from a test tank into the reactor.vThesetsuction valvessillibE testhd'asip'artGff theVpre4pehtionalLtesting programgas
~
describedsin}SSARlChaptersl4isectionil4.2;12.1;5; -Because of' thelinportance'of Talverellability fob the " storage tank discharge valves, ' the reliability reqisiremen(ts 'an'dsthat the valves be incorporated into-the10pera-staff req tional Reliability Assurance Program. Thisiissueswas previouslyidiscussed'as Con f i rm'a'tiiryll tem :9. 315-13 bu t; based Nn >s t a f f4rev i ewli ti l's s not be ing ct rac ked ash COLL Actio' iltem 19.3; 5;1'.
n Dfsion Certi ficatj.gn_liateriql GE has submitted in Section 2.2.4 of the DCM, design description and-ITAAC for
[
SLCS which are under staff review.
The results of the staff's review will be provided in_the FSER. This'is Open Item 9.3.5-1.
The SLCS meets the acceptance criteria of SRP Section 9.3.5.
Subject to resolution of the open items identified above, the staff will conclude that the SLCS meets the requirements of 10 CfR 50.62. and GDC 2, 4, 26, and~ 27 as-they relate to protected against natural phenomena, system function and redun~
dancy, and testability, and the guidelines of Position C.l. of RG 1.29,~as-related to seismic classification of the system - and is, therefore,. accept-able.
9.3.6 Instrument Air System Because the IA system-is one of the four systems that perform functions l
addressed in SRP Section 9.3.1, the staff reviewed-this system as part of an H
integrated review of the ABWR CA systems.
The results of this review are presented in Section 9.3.1 of this report.
9.3.7 Service Air System Because the SA system is one of the four systems that per%rms functions addressed in SRP Section 9.3.1,.the staff reviewed this s, stem as part'of an L
integrated review of the ABWR CA systems. The_results of this review are l
presented in Section 9.3.1 of this report.
l L
9.3.8 Radioactive Drain Transfer System l
ABWR OFSER 9-50 October 1992=
~
p
,