ML052030096

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML052030096
Person / Time
Site:	Point Beach
Issue date:	05/24/2004
From:	Leiker J Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML052030096 (3)

Text

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. ,. 1 AJRQd Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: May 24. 2004 Time: 1400 Preparer: _ Jon Leiker U I R 28 NOTE: Refer to base procedure NP 10.3.6for safety assessment checklist KSF definitions.

N OTE: Whenever fuel has been removed from the reactorvessel and refueling cavity, all key safety functions are GREEN except spentfuel pool cooling.

KEY SAFETY FUNCTION CRITERIA: No/False = 0, Yes/True = I through 4 REACTIVITY Subtotal Condition

1. RCS Boron concentration = 3013 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 3-34 YYULN

4. SR instrumentation operable (0-1) 1 Subtotal = 5 I

CORE COOLING Subtotal Condition

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

2. Refueling cavity filled (0-1) 0 G E6

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

4. RCS level above REDUCED INVENTORY (0-1) 0 4-5 GREEN RCS Temperature = 80F; 51 days shutdown RCS Level = 24% level Subtotal = 2 RCS Time to Boil 106 min. (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 ipdependent at the 4160 V, 13.8 kV, ] j:_ V 2.

and 345 kV levels)

G-01 or G-02/A-05/B-03 available (0-2)

(0-1) 2 1

65 REW 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 2 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-1) 0 Subtotal = 4 INVENTORY Subtotal Condition I. Pressurizer level 220 percent w/head on (0-1) o

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

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

4. Makeup from VCTIBLENDER

.and/or RWST available (0-2) 2 Subtotal = 2

-. ~ c.r iJ inac dance A exag, X V /&

PBF-1562

References:

NP 10.3.6

- .. _r Revision 2 10/30/02 - rage -1o 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 (Oor4) 0 I ORANGE

2. Containment Closure CL-IE maintained 2-3 and closure < time to boil (Oor2) 2 095-6

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)

NOTE: Take creditforonly one P-12 independent offsite power source duringperiods of single X-03 or X-04 availability(*).

Subtotal Condition

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

- G-02 or G-01 via 2B-32 (0-1) NA 3 YELLOW (t) 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 IB-42 (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 `F SFP Average Temp NA SFP Time to Boil NA GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:

• Core Cooling is ORANGE due to RCS level <55 %to remove Nozzle Dams

• Inventory is ORANGE due to RCS level <55 % to remove Nozzle Dams

• Time to Boil is 106 minutes due to 24% RPV level - calculated from SEP-1 with vessel level at 3/4 pipe, 80 'F, 51 days post-shutdown, and the 1.3 multiplier for being refueled.

Note that the TTB curve based on 50 days post-shutdown was conservatively used (see CAP056964).

PBF-1562 Refcrences: 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: 1 DATE: May 24, 2004 TIME: 1400 KEY SAFETY FUNCTIONS:

REACTIVITY: GREEN CORE COOLING: ORANGE POTER AVAILABLE: GREEN INVENTORY: ORANGE CONTAINMENT: GREEN SFP COOLING: NA PROTECTED EOUIPMENT:

COMMENTS: RCS Time to Boil is 106 minutes Fire Prot. Cond. III: Credit taken for fire rounds as fire prevention contingency PBF-1562

References:

NP 10.3.6 Revision 2 10/30/02 Page 5 of 9 NP 10.2.1