ML20063M164

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Responds to DBA Suppression Pool Bypass Open Item of Re Containment Sys & Severe Accident Issues
ML20063M164
Person / Time
Site: 05200001
Issue date: 02/25/1994
From: Fox J
GENERAL ELECTRIC CO.
To: Poslusny C
Office of Nuclear Reactor Regulation
References
NUDOCS 9403100272
Download: ML20063M164 (2)


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In run u A+ n Sun.k:s Ca N25 February 25,1994 Docket No.52-001 Chet Poslusny, Senior Proj Standardization Project D,ect Manager irectorate Associate Directorate for Advanced Reactors and License Renewal Office of the Nuclear Reactor Regulation

Subject:

Submittal Supporting Accelerated ABWR Schedule - DilA Suppression Pool Bypass

Reference:

R. W. Borchardt letter to J. F. Quirk, "GE ABWR Containment Systems and Severe Accident Issues,"

December 29,1993

Dear Chet:

This letter res,onds to the DBA Suppression Paol Bypass open item of the reference etter. This modificauon will be included in Amendment 34.

Please provide a copy of this transmittal to John Monninger.

Sincerely,

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bef Ja'ck Fox Advanced Reactor Programs cc:

Alan Beard GE)

Norman Fletcher DOE)

Joe Quirk GE Umesh Saxena GE 080000 T)

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r DHA SUPPRESSION POOL BYPASS l

l Datithen1 GE has not provided SSAR mark-ups on the use of containment sprays for long term containment response following a feedwater line break and mam steamline break. Section 6.2.1.1.3.2 indicates that Table 6.2-2a provides the ESF systems for post blowdown long-term containment cooling. Table 6.2-2a clearly indicates the I

containment spray system. GE has stated that containment sprays are not used in l

the analyses but the SSAR indicates that they were. These should be consistent.

Ec511mhc Analyses calculating long-term containment responses following a feedwater line break and main steamline break used containment cooling system only, and Section 6.2.1.1.3.2, Para 2, reflecting this is as(follow: containment sprays were I-

' Table 6.2-2a provides..................and reduced capacities assumed for l

containment analyses. Analyses calculating long-tenn containment responsefollowing a feedwater line break and main steamline break used containment cooling system only, and containment symys were not used.'

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