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Pages 4 & 36-61 to Directors Decision DD-82-3,Attachment 1
	ML17256B022
Person / Time
Site:	Ginna
Issue date:	05/22/1982
From:	; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML17256B021	List: ML17256B020; ML17256B022;
References
	DD-82-03, DD-82-3, NUDOCS 8206100394
	Download: ML17256B022 (28)
	v • d • e

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B The major factor in assessing the safety margin of any of the SEP facilities depends upon the ability to provide adequate protection for postulated design basis events (OBEs).

The SEP topics provide, a major input to the OBE review, both from the standpoint of assessing the proba" bility of certain.events and that of determining the consequences of events.

As examples, the safe shutdown topics pertain to the listed OBEs (the extent of applicability will be determined during the SEP OBE review for Ginna):

~TO ic V-10. B V-11.A V-11. B VII"3

. IX-3

~GBE G

YII (Spectrum of Loss-of-Coolant Accidents)

YII (Oefined above)

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'II (Oefined above)

All (Oefined as a generic topic)"

.III (Steam Line Break Inside Containment)-

(Steam Line Break Outside Containment)

IY (Loss of AC Power to Station Auxiliaries)

(Loss of all AC Power)

V (Loss of Forced Coolant Flow)

(Primary Pump Rotor Seizure)

(Primary Pump Shaft Break)

YII (Oefined above)

Impact Upon Probability Or Conse uences of OBE Consequences Probability Probability Consequences Consequences Consequences Probability Consequences For a listing of OBE groups and generic topics, see Reference 10.

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ML17256B022

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