ML051920088

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051920088
Person / Time
Site:	Point Beach
Issue date:	04/19/2004
From:	Longston A Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051920088 (3)

Text

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: April 19,2004 Time: 1400. Preparer: Andrea Longston U I R 28 NOTE: Refer to baseprocedureNP 10.3.6forsafety assessment checklist KSFdefinitions.

NOTE: Wheneverfuel has been removed from the reactorvessel and refueling cavity, all key safetyfunctions are GREEN except spentfuelpoolcooling.

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

1. RCS Boron concentration = 2892 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 E 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) 0 2

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

4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 G RCS Temperature derived from T/Cs TEO4 and TE06.

RCS TENMP = 97 0F; 16 days shutdown; RCS 75% Subtotal = 3 RCS Time to Boil 46 min (Applicable at Cold or Refueling Shutdown)

POWER AVAILABILITY Subtotal Condition

1. Independent off-site power sources I RED available to A-O5 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-01 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 2Ž23 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

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

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

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

4. Makeup from VCT`IBLENDER and/or RWST available (0-2) 2 Subtotal = 3

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References:

NP 103.6 Revision 2 10/3002 Page I of 9 NP102 J t

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

1. Containmentintegrity(TS 15.11.D) {Containment 0 RED Operable) (ITS TS 3.6.1) set (O or 4) 0 I ORANGE

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

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

NOTE: Take creditforonly one P-12 independent offsifte powersource 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) n/a 3 YELLOW

-(*) an independent off-site power 4-5 GREEN source different than that for Train B below (0-1) n/a

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

- G-03 or G-04 via IB42 (0-1) n/a

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

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) nl/a SFP Temperatures: Subtotal = n/a NW n/a OF SE n/a Op SFP Average Temp n/a OF SFP Time to Boil n/a GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:

(Jerry Strharsky) Changed time to boil based on conservative times provided by SEP-1 Attachment C for 34 pipe vessel level rather than interpolating data.

PBF-1562 Reerences: NP 103 3.6 Revision 2 10/3O)2 - 2of Pa - n9o

- I NrP 10.2.1

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT: 1 DATE: April 19,2004 TIME: 1400 KEY SAFETY FUNCTIONS:

REACTIVITY: GREEN CORE COOLING: YELLOW POWER AVAILABLE: GREEN INVENTORY: YELLOW CONTAINMENT: GREEN SFP COOLING: N/A PROTECTED EOUIPMENT:

COMMENTS:

Fire Protection Condition III: Crediting existing fire rounds as fire prevention contingency RCS Time to Boil is 46 minutes RCS is at 75% Reactor Vessel level Hot leg vent path Is the removed Pressurizer manway PBF-1562

References:

NP 103.6 Revsion 2 10/30/02 Page 5 of 9 NP 10.2.1