ML051930469

Pbnp Shutdown Safety Assessment and Fire Condition Checklist

ML051930469
Person / Time
Site:	Point Beach
Issue date:	04/28/2004
From:	Matthew Meyer Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282
Download: ML051930469 (3)

Text

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date:

April 28, 2004 Time:

0230 Preparer:

Michael R. Meyer U

I R

28 NOTE:

Refer to base procedure NP 10.3.6for safety assessment checklist KSF definitions.

NOTE:

Wh7teneverfuel has been removed from the reactor vessel and refueling cavity, all key safetyfunctions are GREEN excent spentfuel pool cooling.

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

1.

RCS Boron concentration = 2995 ppm (4/27) 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

2.

Number of boration paths

3.

No fuel motion

4.

SR instrumentation operable Cavity Boron concentration = 3016 ppm SFP Boron concentration = 3027 ppm Sul Subtotal Condition RED (0-1) 1 (0-2) 1 (0-1) 0 (0-1) 1 0-I 2

334 5

)total =

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.

RCS level above REDUCED INVENTORY (0-1) 1 4-5 RCS TEMIP =78'F; 25 days shutdown, Subtotal =

3 RiCS Level = Refucling Height RCS Time to Boil 25.5 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

ORANGE independent at the 4160 V, 13.8 kV, 3

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 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) 1 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 VCTIBLENDER and/or RWST available (0-2) 0 Subtotal =

4 PBF-1562 Revision 2 10/30/02 kitormabnfm~ire dw asd*

W ki accmdnce with fte Freedom of W-b"oIsmf PaeI of 9 7-L-._3

References:

NP 10.3.6 NP 10.2.1

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

1.

Containment integrity (TS 15.11.D) {Containment Operable) {ITS TS 3.6.1) set

2.

Containment Closure CL-IE maintained and closure < time to boil

3.

No fuel motion

4.

DIR 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 (O or 4) 0 (O or 2) 2 (0-1) 0 Subtotal 0

1 2-3 4-5-6 Condition RED (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 offslle power source during periods of single X-03 or X-04 availability (*).

1.

"A" SFP cooling pump available with power available from:

G-02 or G-0I via 2B-32

.*)

an independent off-site power source different than that for Train B below

2.

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

G-03 or G-04 via IB42

.(*)

an independent off-site power source different than that for Train A above

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 />.

Subtotal 0-1 2

3 4-5 Condition RED ORANGE SE~iLW

1. -RE (0-1) 1 (0-1) 1 (0-1) 1 (0-1) 1 (0-1) 0 SFP Temperatures:

NW 81 0F SE 79 OF SFP Average Temp 80.0 SFP Time to Boil 21 hrs Subtotal =

4 OF GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE: None LOOK AHEAD:

l. IX04 to be removed from service on 4/28/04. Currently on hold due to procedure difficulties. POWER AVAILABILITY will remain GREEN. SFP COOLING will become YELLOW.

2.

Sump 'B' Screen scheduled to be removed on 4/28/04. INVENTORY will become YELLOW.

PBF-1562 Revision2 10/30/02

References:

NP 103.6 NP 10.2.1 Page 2 of 9

Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST OUTAGE SAFETY ASSESSMENT UNIT:

I DATE:

April 28, 2004 TIME:

0230 KEY SAFETY FUNCTIONS:

REACTIVITY:

CORE COOLING:

POWER AVAILABLE:

INVENTORY:

CONTAINMENT:

YELLOW YELLOW GREEN GREEN YELLOW SFP COOLING:

GREEN 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 /> SFP 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 PBF-1562 Revision 2 10/30/02

References:

NP 10.3.6 NP 10.2.1 Page 5 of 9