ML20195F251

Rev 0 to Calculation 93C1783-40, Seismic Fragility (SPRA) Analysis,Beaver Valley Unit 1 DG Building

ML20195F251
Person / Time
Site:	Beaver Valley
Issue date:	01/31/1994
From:	STEVENSON & ASSOCIATES
To:
Shared Package
ML20195F186	List: L-98-218, Forwards Response & Calculations in Response to 980728 NRC Ltr Which Requested Addl Info Re IPEEE for Bvps,Unit 2 ML20195F196 ML20195F211 ML20195F232 ML20195F244 ML20195F251
References
93C1783-40, 93C1783-40-R, 93C1783-40-R00, NUDOCS 9811190221
Download: ML20195F251 (7)

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Acceptance Criteria:

Remarks:

l REVISIONS No.

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j ATTACHMENT H i

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Detailed Description of the Top 5 i

Seismic Core Damage Sequences

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l Detailed Description of the Top 5 Seismic Core Damage Sequences Seismic Frequency Earthquake Independent CDF per year Acceleration Seismic Failures Guaranteed Failures Non-seismic Operator Action Sequence (Percent of Level (g)

Failures Failures / Timing Seismic Total) 1 5.3935E-07 SEIS4 (0.5 - 1.0)

. ZC4 - Offsite Grid

. OGF-Offsite Grid N/A N/A (10.13%)

. ZD4 - Normal AC/DC Power

+ DSF - 125V DC Battery 2-5 Supply

. ZE4 - Emergency AC Power

+ D6F - 125V DC Battery 2-6 Supply

+ ZB4 - ERF Diesel Generator

. AOF - Emergency AC Orange Train Power

. BPF - Emergency AC Purple Train

. XTF - Station AC Power Cross Tie

. OSF - Operator Initiates Safety injection

. WAF-Service / Standby SW Train-A Pumps &

Flow Path

. WBF-Service / Standby SW Train-B Pumps &

Flow Path

. BKF - ERF (Black) Diesel Generator Power

. CSF - Turbine Plant Component Cooling Water

. IAF - Station instrument Air Supply

. CCF - Primary Component Cooling Water System

. ICF - Containment Instrument Air System

. TBF - RCP Thermal Barrier Cooling

. AFF - Auxiliary Feedwater

. PRF - Pressurizer Relief at:d Reciosure

. OFF - Manual Actions to Reestablish MFW

. OBF - Bleed & Feed Cooling

. HHF - High Head Safety injection Pumps i

. LHF - Low Head Safety injection Pumps

. NRF - Recirculation from sumo not required i

. NMF-No melt condition from injection phase

. QSF - Quench Spray Pumps

. SMF-Containment Sump Water Level, Plugging

. CIF -Containmentisolation

. REF - Electric power recovery prior to core uncovery

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2 3.6910E-07 SSS4 (0.5 - 1.0)

. ZC4 - Offsite Grid

. OGF-Offsite Gnd N/A N/A (6.93 %)

. ZD4 - Normal AC/DC Power

. DSF - 125V DC Battery 2-5 Supply

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. ZB4 - ERF Diesel Generator

. D6F - 125V DC Battery 2-6 Supply Power

. OSF - Operator Initiates Safety injection e WAF-Service / Standby SW Train-A Pumps &

Flow Path

. WBF Service / Standby SW Train-B Pumps &

r n

Detailed Description of the Top 5 Seismic Core Damage Sequences l

Seismic Frequency Earthquake Independent CDF per year Acceleration Seismic Failures Guaranteed Failures Non-seismic Operator Action Sequence (Percent of Level (g)

Failures Failures / Timing Seismic Total)

Flow Path

. BKF - ERF (Black) Diesel Generator Power

. CSF - Turbine Plant Component Cooling Water

. IAF - Station instrument Air Supply

. CCF - Primary Component Cooling Water System

. ICF - Containment instrument Air System

. TBF - RCP Thermal Barrier Cooling

. AFF - Auxiliary Feedwater

. PRF - Pressurizer Relief and Reciosure

. OFF - Manual Actions to Reestablish MFW

. OBF - Bleed & Feed Cooling

. HHF - High Head Safety injection Pumps

. LHF - Low Head Safety injection Pumps

. NRF - Recirculation from sump not required

. NMF-No melt condition from injection phase

. OSF - Quench Spray Pumps

. SMF - Containment Sump Water Level, Plugging

. CIF -ContainmentIsotation

. REF - Electric power recovery prior to core uncovery 3

2.8510E-07 SEIS3 (0.35 - 0.5)

. ZC3 - Offsite Grid

. OGF-Offsite Grid N/A N/A (5.35%)

. ZE3 - Emergency AC Power

. AOF - Emergency AC Orange Train

. ZB3 - ERF Diesel Generator

. BPF - Emergency AC Purple Train Power

. XTF - Station AC Power Cross Tie

. WAF-Service / Standby SW Train-A Pumps &

Flow Path

. WBF-Service / Standby SW Train-B Pumps &

Flow Path

. BKF - ERF (Black) Diesel Generator Power

. CSF - Turbine Plant Component Cooling Water

. !AF - Station Instrument Air Supply

. CCF - Primary Component Coohng Water System

. ICF - Containment instrument Air System

. TBF - RCP Thermal Barrier Cooling

. HHF - High Head Safety injection Pumps

. SEF - RCP Sealinjection

. LHF - Low Head Safety injection Pumps

. ODF-Depressurization of RCS for RHR Entry i

L L

Detailed Description of the Top 5 Seismic Core Damage Sequences Seismic Frequency Earthquake independent CDF per year Acceleration Seismic Failures Guaranteed Failures Non-seismic Operator Action Sequence (Percent of Level (g)

Failures Failures / Timing Seismic Total)

. NRF - Recirculation from sump not required

. NMF-No mert condition from injection phase

. QSF-Quench Spray Pumps

. SMF - Containment Sump Water Level. Plugging

. REF - Electric power recovery prior to core uncovery 4

2.1881E-07 SEIS3 (0.35 - 0.5)

. ZC3 -Offsite Grid

. OGF-Offsite Grid N/A N/A (4.11%)

. ZD3 -Normal AC/DC Power

. D5F - 125V DC Battery 2-5 Supply

. ZE3 - Emergency AC Power

. D6F - 125V DC Battery 2-6 Supply

. ZB3 - ERF Diesel Generator

. AOF - Emergency AC Orange Train Power

. BPF - Emergency AC Purple Train

. XTF - Station AC Power Cross Tie

. WAF-Service / Standby SW Trasn-A Pumps &

L Flow Path

. WBF-Service / Standby SW Train-B Pumps &

Flow Path

. BKF - ERF (Black) Diesel Generator Power

. CSF - Turbirse Plant Component Cooling Water

. IAF - Station Instrument Air Supply

. CCF - Primary Component Cooling Water System

. ICF - Containment Instrument Air System

. TBF - RCP Tiiermal Barrier Cooling I

. HHF - High Head Safety injection Pumps

. SEF - RCP Sealinjection i

. LHF - Low Head Safety injection Pumps

. ODF - Depressurization of RCS for RHR Entry

. NRF - Recirculation from sump not required

. NMF-No melt condition from injection phase

. OSF - Quench Spray Pumps

. SMF - Containment Sump Water Level. Plugging

• REF - Electric power recovery prior to core I

uncovery r

5 2.0439E-07 SETS 4 (0.5 1.0)

. ZC4 - Offsite Grid

. OGF-Offsite Grid N/A N/A (3.84 %)

. ZE4 - Emergency AC Power

. AOF-Emergency AC Orange Train

. ZB4 - ERF Diesel Generator

+ BPF - Emergency AC Purple Train Power

. XTF - Station AC Power Cross Tie

. OSF - Operator initiates Safety injection L

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Detailed Description of the Top 5 Seismic Core Damage Sequences Seismic Frequency Earthquake Independent CDF per year Acceleration Selsmic Failures Guaranteed Failures Non-seismic Operator Action Sequence (Percent of Level (g)

Failures Failures / Timing.

Seismic Total)

WAF-Service / Standby SW Train-A Pumps &

Flow Path WBF-Service / Standby SW Train-B Pumps &

Flow Path BKF - ERF (Black) Diesel Generator Power CSF - Turbine Plant Component Cooling Water IAF - Station Instrument Air Supply -

CCF - Primary Component Cooling Water System ICF - Containment instrument Air System TBF - RCP Thermal Barrier Cooling AFF - Auxiliary Feedwater PRF - Pressurizer Relief and Reclosure OFF - Manual Actions to Reestablish MFW OBF-Bleed & Feed Cooling HHF - High Head Safety injection Pumps -

LHF - Low Head Safety injection Pumps NRF - Recirculation from sump not required NMF-No melt condition from injection phase QSF - Quench Spray Pumps SMF - Containment Sump Water Level, Ptugging CIF - Containment isolation REF - Electric power recovery prior to core uncovery I

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