ML051930154

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051930154
Person / Time
Site:	Point Beach
Issue date:	04/27/2004
From:	Bennett K Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051930154 (3)

Text

C5- Vc41 r ,I Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: April 27.2004 Time: 1430 Preparer: Kevin J Bennett. U I R 28 NOTE: Referto base procedureNP10.3.6forsafety assessment checklist SFdefinitions.

NOTE: Weneverfuel has been removedfrom the reactorvessel and refueling cavity, all key safety functions are GREEN except spentfuel pool cooling.

KEY SAFETY FUNCTION CRITERIA: No/False =0, Yes/True =1 through 4.

REACTIVITY Subtotal Condition

1. RCS Boron concentration = 3000 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 boiation paths (0-2) 1 2

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

4. SR instrumentation operable (0-1) 1 5 Cavity Boron concentration = 3016 ppm SFP Boron concentration = 3027 ppm Subtotal = 3 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 4 ELLOW"

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 RCS TEMP =770F; 24 days shutdown. Subtotal = 3 RCS Level = Refueling Height ,

RCS Time to Boil 25.5 lirs (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 , 1 and 345 kV levels) (0-2) 2 4-5

2. G-01 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 2 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (0-I) I Subtotal = 5 INVENTORY Subtotal Condition

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

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

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

4. Makeup from VCT/BLENDER and/or RWST available (0-2) 0 1nfor1atlon In this rerd wa dpfd Subtotal = 4 In arentrnn. wit; t ro ., -

Act, ex t' ------

Rdecrences: NP 10.3.6 Revision 2 101300 Page 1 of 9 NP 10.2.1 by eIC-

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

1. Containment integrity (TS 15. .D) (Containment 0 RED Operable) IITS TS 3.6.1) set ( or 4) 0 l

2. Containment Closure CL-lE maintained 2-3 ( YELLOW]

and closure < time to boil ( 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) 1 Subtotal = 3 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)-

NOTE: Take creditfor only one P-12 independent offsitepower source duringperiodsof 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) 1 3 QULW an independent off-site power source different than that for 4-5

,-ED Train B below (0-1) 1

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

- G-03 or G-04 via IB-42 (0-1) 1

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

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) 0 SFP Temperatures: Subtotal = 4 0

NW 80 F SE 77 OF SFP Average Tem'p 78.5 OF SFP Time to Boil 21 hrs GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE: None LOOK AHEAD: 1X04 to be removed from service on 4127/04. Currently on hold due to procedure difficulties.

POWER AVAILABILITY will remain GREEN. SFP COOLING will become YELLOW.

PBF-1562

References:

NP 103.6 Revision 2 10130/02 Page 2 of 9 NP 10.21

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND IRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT: I DATE: April 27, 2004 TIME: 1430 KEY SAFETY FUNCTIONS:

REACTIVITY: YELLOW

- I CORE COOLING: YELLOW POWER AVAILABLE: GREEN INVENTORY: GREEN CONTAINMENT: YELLOW SFP COOLING: GREEN PROTECTED EQUIPMENT:

I S.k I1 i

COMMENTS:

RCS Time to Boil is 25.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 1,$

SF]P Time to Boil is 21 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br /> (full core off-load is assumed)

Fire Protection Condition IV: Credit is taken for fire rounds as fire prevention contingency I

I.

PBF-1562

References:

NP 103.6 Revision 2 10/30/02 Page 5 of 9 NP 102.1