ML052030094

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML052030094
Person / Time
Site:	Point Beach
Issue date:	05/24/2004
From:	Branam T Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML052030094 (3)

Text

Point Beach Nuclear Plant C3- ;q-7 PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: May 24. 2004 Time: 0200 Preparer: T. R. Branam U I R 28 NOTE: Refer to baseprocedure NP 10.3.6for safety assessment checklist KSF definitions.

NOTE: Whf eneverfuel has been removedfromn the reactorvessel and refueling cavity, all key safetyfunctions are GREEN except spentfuelpool 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- I RED

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

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

4. SR instrumentation operable (0-1) 1 5.

Subtotal = 5 CORE COOLING . .. a' . Subtotal Condition

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

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

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; 50 days shutdown RCS Level <55 % 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 independent at the 4160 V, 13.8 kV, 3 and 345 kV levels) (0-2) 2 4-5

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

1. Pressurizer level 220 percent W/head on (0-1) 0 2 ORAIdjGo

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

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

4. Makeup from VCT/BLENDER and/or RWST available (0-2) 2 Subtotal 2 Intfrmpt~n IntINS recod was deleted inaccordance wth t RFeedom of wa1ftm AcL ex PBF-1 562 Revvsio2 /. ... an o

References:

NP 10.3.6 Revision 2 lO/3/02 Page 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 3.6.1) set (Oor 4) 0 ORANGE

2. Containment Closure CL-IE 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 .

L . . . .

Subtotal = 4 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)

NOTE: Take creditfor only one P-12 independent offsitepowversource duringperiods of singleX-03 orX-04 availability(*).

Subtotal Condition

1. "A" SFP cooling pump available 0-1 RED 1:

with power available from: 2 ORANGE

- G-02 or G-O I via 2B-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 IB42 (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 0F SE NA 0 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 to ORANGE due to RCS level < 55 % to remove Nozzle Dams

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

• Time to Boil changed to 106 min. due to draindown to 22% RPV level, calculated from SEP-1, Degraded RHR System Capability, with vessel level at 22%, 80 'F, 50 days. and the 1.3 multiplier credit is taken.

PBF-1562 Rererences: NP 1O.3 1.6 Revision 2 10/30/02 Page 2 of 9 NP I0.2LI.

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT: 1 DATE: May 24, 2004 TIME: 0200 KEY SAFETY FUNCTIONS:

REACTIVITY: GREEN CORE COOLING: ORANGE POWER AVAILABLE: GREEN INVENTORY: ORANGE CONTAINMENT: G REEN SFP COOLING: NA PROTECTED EOUIPMENT:

COMMEINTS: Fire Protection Condition III: Credit is taken for fire rounds as fire prevention RX contingency.

PBF-1562

References:

NP 10.3.6 Revision 2 10/30/02 Page5 of 9 NP 10.2.1