ML051920086

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051920086
Person / Time
Site:	Point Beach
Issue date:	04/19/2004
From:	Hastings R Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051920086 (3)

Text

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Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: April 19. 2004 Time: 0200 Preparer: Randy Hastings U 1 R 28 NOTE: Refer to base procedure NP 10.3.6for safety assessment checklist KSF definitions.

NOTE: V~heneverfuel has been remnovedfromn the reactor vessel 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 = 2892 ppnm a.) For RSD, RCS boron >Refueling boron concentration specified in unit-specific COLR (TRM2.1) >2200ppm 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 <2REN 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 GK; RCS Temperature derived from T/Cs TE04 and TEO6.

RCS TENIP = 97-F; 16 daysslistdown; RCS 69% Subtotal = 3 RCS Time to Boil 43 min (Applicable at Cold or Refueling Shutdown)

POWER AVAILABILITY Subtotal Condition

1. Independent off-site power sources l 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-01 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

1. Pressurizer level 220 percent wlhead 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 I _

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

• *QQ-1;"figt FIS e.-Iao .

in accordance w e Freedom of Information PBF-1562

References:

NP 10.3.6 Revision 2 10/30102 e I of 9 NP 10.2.1 i S~'- -

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 and closure < time to boil (Oor2) 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 Subtotal 4 SPENT FUEL POOL COOLING (ONLY APPLICABLE when starting AND during FULL CORE OFFLOADS)

NOTE: Take creditfor only one P-12 independent offsite powersourceduring periods of single X-03 orX-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 IB-42 (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) n/a SFP Temperatures: Subtotal = n/a NW n/a OF SE n/a OF SFP Average Temp n/a 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 3/4 pipe vessel level rather than interpolating data.

PBF-1562

References:

NP 10.3.6 Revision 2 10130/02 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: April 19, 2004 TIME: 0)200 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 43 minutes RCS is at 69 % Reactor Vessel level Hot leg vent path is the removed Pressurizer manway PBF-1562

References:

NP 10.3.6 Revision 2 10/30/02 Pane 5 of 9 NP 10.2.1