ML051950593

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051950593
Person / Time
Site:	Point Beach
Issue date:	05/18/2004
From:	Scott S Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051950593 (3)

Text

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: AMay 18, 2004 Time: 0200 Preparer: Sara Scott U I R 28 NOTE: Refer to baseprocedure NP 10.3.6for safety assessment checklist KSF definitions.

NOTE: Wheneverfuel has been removedfrom the reactorvessel and refueling cavit, all key safetyfunctions are GREEN excent spentfuelpool cooling.

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

1. RCS Boron concentration = 3020 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 CupM.Q 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 ORANGE

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

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 CGREEN RCS Temperature = 79F; 44 days shutdown RCS Level = Rod Latch Height Subtotal = 4 RCS Time to Boil 30 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 independent at the 4160 V. 13.8 kV, 3 E o and 345 kV levels) (0-2) 1 4-5

2. G-O0 or G-02/A-051B-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 />. (0-1) 0 Subtotal = 3 INVENTORY Subtotal Condition 0-1 RED

1. Pressurizer level Ž20 percent w/head on (01) 0 2 ORANGE

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

3. RCS level above REDUCED INVENTORY (0-1) . 441

4. Makeup from VCT/BLENDER and/or RWST available (0-2) 1 Subtotal = 4 M

I~ndomabon ~scordww de*eiW hinaccordance wd ijecMcikfmallaon PBF-1 562 Rcferences: NP 10.3.6 Revision 2 10130102 RWAlAAJU rev~ 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 (O or 4) 0 1 ORANGE

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

3. No fuel motion (0-1) 1

4. DHR Capability:

cavity flooded and inteinals out OR

- at least one SG available OR

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

NOTE: Take creditfor only 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

.(*) 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 OF SE -NA OF SFPAverage Temp . NA SFP Time to Boil . NA GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:

RCS Boron increased from 3002 to 3020 ppm

-.The RHR Reactivity flow path changed from train "B" to train "A".

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 18, 2004 TIME: 0200 KEY SAFETY FUNCTIONS:

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

COMMENTS: V 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 and curve for core reload complete.

Fire Protection Condition IV: Credit is 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