ML20085N656

Intervenor Exhibit I-MOSBA-7,consisting of Licensee Agenda Re Analysis Performed in Response to GL 88-17

ML20085N656
Person / Time
Site:	Vogtle
Issue date:	05/17/1995
From:	GEORGIA POWER CO.
To:
References
GL-88-17, OLA-3-I-MOSBA-7, NUDOCS 9506300272
Download: ML20085N656 (3)

Text

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/btosB A - 7 Exhibit 1 ,page / of AGENDA u0CKETED USNRC

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--OPENING . .

. . . . . . . . g. 3 y .P2 :34 . R. P. MCDONALD INTRODUCTION . . . . . . . 0FFICE Of 3ECRETARY . C. K. MCC0Y 00CKETING & SERVICE BRANCH A. EMERGENCY NOTIFICATION . . . . . . . . . KEN HOLMES

1. STATEMENT OF WHAT OCCURRED l (TIME LINE), EQUIPMENT

2. ROOT CAUSE

3. CORRECTIVE ACTION

4. SIGNIFICANCE B. EQUIPMENT HATCH CLOSURE . . . . . . . . PAUL RUSHTON

1. DISCUSSION OF HATCH CLOSURE l

2. ANALYSIS OF LOSS OF RHR

3. ACTIONS FOR UPCOMING OUTAGE AND FUTURE CONSIDERATION

4. SIGNIFICANCE OF MARCH 20 EVENT C. D/G FAILURE . . . . . . . . . . . . . . LEWIS WARD NUCLEAR REGULATORY COMMISSION

1. STATEMENT OF FACTS 5 - ~ ' -3 Docket No. Scmi seu-3 Official Exh. No. 2^+ )

In the matter of 6 [( e4 <t f .

2. ROOT CAUSE se incurineo Appi4 cant t- -

RECEIVED

3. CORRECTIVE ACTION 'a=' - REJECTED Contg Otfr Coniactar CATE O T- / 7 - 4 T O 4. SIGNIFICANCE otner Reporter C . N.b weness su ,.u.4 92 PRO.;ECT 059611 0424 0 PDR  :

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ANALYSIS PERFORMED IN RESPONSE TO GL i

l TIME TO BOIL / TIME TO CORE UNC0VERY l

l ANALYSIS ASSUMPTIONS:

l l . 48 HOURS AFTER SHUTDOWN I

l

. UPRATED CORE (3565 MWTH)

. NO CREDIT TAKEN FOR S/G'S AS A HEAT

.O . NO CREDIT TAKEN FOR OTHER WATER SO RWST, OR OTHER

' SUCH A.S ACCUMULATORS, l' CHARGING SOURCES RESULTS

. RCS HEATUP RATE OF 8.60F./ MINUTES

. ESTIMATED TIME TO BOIL OF 8.3 MINUTES

. ESTIMATED TIME TO CORE UNC0VERY OF MINUTES O

92 PROJECT 059633

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UPCOMING OUTAGE CONSIDERATIONS r IRST MIDLOOP i

f . 70 HOURS AFTER SHUTDOWN

. 'APPROXIMATELY 15 MWTH DECAY HEAT LOAD 1

. 2 RAT'S AND ONE DIESEL WILL BE AVAILABLE TO SUPPLY ELECTRICAL POWER i

} . RWST WILL BE AVAILABLE TO GRAVITY FEED IF NEEDED

! IN CASE OF LOSS OF ALL AC, EXPECT APPROXIMATE i

i

. RCS HEATUP RATE OF APPROXIMATELY 7.50F.

d -

j . TIME TO SATURATION OF 10-15 MINUTES DEPENDING ON INITIAL RCS j TEMPERATURE i . CORE UNC0VERY IN APPROXIMATELY 70 MINUTES WITH NO OPERATOR ACTION

. USING GRAVITY FEED-TIME TO SATURATION CAN BE EXTENDED i .

WITH NO COOLERS OPERATING, CONTAINMENT TEMPERATURE COULD INCREASE

FROM 1000F. TO 1400F. IN APPROXIMATELY 30 MINUTES ACTION

. MANUAL MEANS OF HATCH CLOSING WILL BE AVAILABLE

. CAPABLE OF CLOSING HATCH IN 25 MINUTES 1

. PROCEDURES HAVE PROVISIONS FOR RWST GRAVITY FEED

. CREWS DEDICATED FOR HATCH CLOSURE ARE DESIGNATED

. INSTALLING NEW DESIGN FOR LOWERING HATCH W/0 AC O .

92 PROJECT 059638

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