ML051950176

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051950176
Person / Time
Site:	Point Beach
Issue date:	05/07/2004
From:	Legreve M Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051950176 (3)

Text

NAC.

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: May 7, 2004 Time: 1400 Preparer: Mike LeGreve U I R 28 NOTE: Refer to baseprocedure NVP 10.3.6for safety assessment checklist KSFdefinitions.

iVOTE: Whfzenever fuel has been removedfrom the reactor vessel and refueling caviy, all key safety fuctions are GREENexcent spentfitelpool cooling.

KEY SAFETY FUNCTION CRITERIA: NolFalse = 0, YeslTrue = I through 4 REACTIVITY Subtotal Condition

1. RCS Boron concentration = 3005 ppm a.) For RSD, RCS boron >Refueling boron concentration specified in unit-specific COLR (TRM 2.1) >2200 ppm b.) For CSD and prior to RSD no fuel motion, RCS boron > boron concentration required by OP 3C (0-1) 1 0-1 RED

2. Number of boration paths (0-2) 2 2 ORANGE

3. No fuel motion (0-1) 1 3-4

4. SR instrumentation operable (0-1) 1 5 Cavity Boron concentration = 3005 ppm Subtotal= 5 CORE COOLING Subtotal Condition

1. Number of SG available for DHR (0-2) 0 0-1 RED

2. Refueling cavity filled (0-1) 1 2

3. Number of trains RHR available (0-2) 1 3 E LO

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 RCS TENIP =81PF; 34 days shutdown, Subtotal = 3 RCS Level = Retueling tHeight RCS Time to Boil 35 hrs (Applicable at Cold or Refueling Shutdown)

POWER AVAILABILITY Subtotal Condition

1. Independent off-site power sources I RED available to A-05 and A-06 (totally 2 ORANGE independent at the 4160 V, 13.8 kV, 3 and 345 kV levels) (0-2) 2 4-5

2. G-0I or G-02/A-05/B-03 available (0-1) 1 G-03 or G-04/A-06/B-04 available (0-1) 1

3. G-05 available, Reactor Cavity filled to 2 23 ft above the top of the reactor vessel flange, upper internals removed and RCS time to boil Ž12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-1) 1 Subtotal 5 INVENTORY Subtotal Condition 0-1 RED

1. Pressurizer level 220 percent xv/head on (0-1) 0 2 ORANGE

2. Refueling Cavity filled (see definition) (0-3) 3 3 _ V

3. RCS level above REDUCED INVENTORY (0-1) 1 4 Q GREEN

4. Makeup from VCT/BLENDER and/or RWST available (0-2) 0 Subtotal 4 inaRwod=it theFeedom of Informajon Ac ex mph U-5G PBF-1562

References:

NP 10.3.6 10/30/02 Revi o 2g Pf ge I of 9 NP 10.2.1

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST CONTAINMENT Subtotal Condition

1. Containment integrity (TS 15.1.D) {Containment 0 RED Operable} {ITS TS 3.6. 11 set (Oor 4) 0 ORANGE

2. Containment Closure CL-1E maintained 2-3 and closure < time to boil (Oor 2) 2 4-5-6

3. No fuel motion (0-1) 1

4. DHR Capability:

- cavity flooded and internals out OR

- at least one SG available OR

- one fan cooler with Equip hatch installed and personnel hatches capable of being shut (0-1) 1 Subtotal = 4 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)

NVOTE: Take creditfor only one P-12 independent offslte power source duringperiods of singleX-03 orX-04 availability(*).

Subtotal Condition

1. "A" SFP cooling pump available 0-1 RED with power available from: 2 ORANGE

- G-02 or G-0 I via 21B-32 (0-1) NA 3 YELLOW

.(*) an independent off-site power 4-5 GREEN source different than that for Train B below (0-1) NA

2. "B" SFP cooling pump available with power available from:

- G-03 or G-04 via I B42 (0-1) NA

-(*) an independent off-site power source different than that for Train A above (0-1) NA

3. Temporary power available to one SFP cooling pump, G-05 available, and SFP time to boil 2 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-1) NA SFP Temperatures: Subtotal = NA NW NA OF SE NA 0F SFP Average Temp NA OF SFP Time to Boil NA GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:

"B" RHR Heat Exchanger no longer available due to IB04 PMT PBF-1562

References:

NP 10.3.6 Revision 2 10/30/02 Page 2 of 9 NP 10.2.1

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT: I DATE: May 7, 2004 TIME: 1400 KEY SAFETY FUNCTIONS:

REACTIVITY: GREEN CORE COOLING: YELLOW POWER AVAILABLE: GREEN INVENTORY: GREEN CONTAINMENT: GREEN SFP COOLING: NA PROTECTED EOUIPMENT:

COMMENTS:

RCS Time to Boil is 35 hours4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br /> Fire Protection Condition IV: Credit is taken for fire rounds as fire prevention contingency PBF-1562 Retfances: NP 10.3.6 Revision 2 10/30/02 Page 5 of 9 NP 10.2.1