ML051950340

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051950340
Person / Time
Site:	Point Beach
Issue date:	05/12/2004
From:	Matthew Meyer Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051950340 (3)

Text

tAlK-c Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: Mlay 12, 2004 Time: 0200 Preparer: Michael R Meyer U I R 28 NOTE: Refer to baseprocedure NP 10.3.6for safety assessmentchecklist KSF definitions.

NOTE: Wheneverfuel has been removed from the reactorvessel and refueling cavity, all key safety functions are GREEN except spentfuelpool cooling.

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

1. RCS Boron concentration = 3006 ppm a.) For RSD, RCS boron >Refueling boron . I! .

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

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

4. SR instrumentation operable (0-1) 1 5 GREEN Cavity Boron concentration = 3001 ppm Subtotal = 4 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 ORANGE

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

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 C% E RCS Temperature =77F; 39 days shutdown; RCS Level = Rod Latch Height; Reactor is refueled Subtotal = 4 RCS Time to Boil 30 hrs (Applicable at Cold or Refueling Shutdown)

POWVER AVAILABILITY Subtotal Condition

1. Independent off-site power sources I RED available to A-05 and A-06 (totally 2 ORANGE 2.

independent at the 4160 V, 13.8 kV, and 345 kV levels)

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

(0-1) 2 1

3 4-5 CZ D

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-I RED

1. Pressurizer level Ž20 percent w/head on (0-1) 0 2 ORANGE

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

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

4. Makeup from VCT/BLENDER and/or RWST available (0-2) 1 Subtotal = 4 Wormoin M record was deletd W-71 PBF-1562 hI accoda wlh e Freedom of Iuformabow

References:

NP 10.3.6 Revision 2 10130/02 ct, exempbrls Page ' of 9 NP 10.2.1

^E9_ D2: 8 L;

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 (O or 4) 0 I

2. Containment Closure CL-IE maintained 2-3 and closure < time to boil (O or 2) 2 4-5-6

3. No fuel motion (0-1) 0

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) 0 Subtotal = 2 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)

NOTE: Take creditforonly one P-12 independentoffsite 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

-(*) 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 0

NW NA F 0

SE NA F 0

SFP Average Temp NA F SFP Time to Boil NA GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:

Refueling cavity drained to Rod Latch Height, and Rod Latching in progress.

Look-ahead #1: When Rod latching complete; Gain one point for Reactivity and Containment.

Look-ahead #2: When Cavity drained to < Rod Latch height, we will lose I point for Core Cooling (go YELLOW) and one point for Containment (go Yellow) and one point for Inventory (go YELLOW).

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: 1 DATE: May 12, 2004 TIME: 0200 KEY SAFETY FUNCTIONS:

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

PROTECTED EOUIPMENT:

COMMENTS:

RCS Time to Boil is 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Using NP 10.3.6 Time To Boil curves.

Fire Protection Condition IV: Credit is taken for fire rounds as fire prevention contingency 9/S LV PBF-1562 Rererences: NP 103.6 Revision 2 1013002 Page 5 of 9 NP 10.2.1