ML052030082
| ML052030082 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 05/23/2004 |
| From: | Matthew Meyer Nuclear Management Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2004-0282 | |
| Download: ML052030082 (3) | |
Text
AR6C qv Point Beach Nuclear Plant PBNP SHUTDOWN SAFETY ASSESSMENT AND FIRE CONDITION CHECKLIST Date: Mlay 23, 2004 Time: 0230 Preparer: Mike Meyer U I R 28 NOTE: Refer to base procedureNP 10.3.6for safety assessment checklist KSF definitions.
NOTE: Wheneverfuel has been removedfrom the reactor vessel and refueling cavity, all key safet functions are GREEN excent spentfuelpoolcooling.
KEY SAFETY FUNCTION CRITERIA: No/False = 0, YeslTrue = I through 4 REACTIVITY Subtotal Condition
- 1. RCS Boron concentration = 3013 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) 1 334
- 4. SR instrumentation operable (0-1) 1 5 Subtotal = 5 CORE COOLING Subtotal Condition
- 2. Refueling cavity filled (0-1) 0 2 0R NaL
- 3. Number of trains RHR available (0-2) 2 3 T =LLO5in
- 4. RCS level above REDUCED INVENTORY (0-1) 1 4-5 a _
RCS Temperature = 81PF; 49 days shutdown RCS Level = Rod Latch Height Subtotal = 3 RCS Time to Boil 136 min. (Applicable at Cold or Refueling Shutdown)
POWER AVAILABILITY Subtotal Condition
- 1. Independent off-site power sources I RED available to A-OS 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) 1 G-03 or G-04/A-061B-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 0-1 RED
- 1. Pressurizer level 220 percent wlhead on (0-1) 0 2
- 2. Refueling Cavity filled (see definition) (0-3) 0 3
- 3. RCS level above REDUCED INVENTORY (0-1) 1 4 G
- 4. Makeup from VCTIBLENDER andlor RWST available (0-2) 2 Subtotal = 3 AAtSywl Inrom pbwk d PBF-1562 -ag in acwcdac th ex r Fredom oInmftr 1 of 9..
V- //
References:
NP 10.3.6 Revision 203/2 O~" -ej,; Page 1of 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) IContainment 0 RED Operable) fITS TS 3.6.1) set ( or 4) 0 l ORANGE
- 2. Containment Closure CL-IE maintained 2-3 -MMMN&I 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 credit for only one P-12 independentoffsite power 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) 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 IB-42 (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 0
NW NA F SE NA OF SFP Average Temp NA OF SFP Time to Boil NA GIVE A BRIEF EXPLANATION OF ANY CHANGE IN SAFETY ASSESSMENT THAT TOOK PLACE:
- Core Cooling to YELLOW due to draindown below rod latch height
- Inventory to YELLOW due to draindown below rod latch height
- Time to Boil changed to 136 min. due to draindown to RPV flange height PBF-1562
References:
NP 10.3.6 Revision 2 1t030/02 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 23, 2004 TIME: 0230 KEY SAFETY FUNCTIONS:
REACTIVITY: GREEN CORE COOLING: YELLOW POWER AVAILABLE: GREEN INVENTORY: YELLOW CONTAINMENT: GREEN SFP COOLING: NA PROTECTED EQUIPMENT:
COMMENTS:
- Look Ahead: CORE COOLING and INVENTORY will go ORANGE once we draindown to less than 55%
- Protected Equipment signs staged for OP14F Reduced Inventory
- RCS Time to Boil is 136 minutes due to draindown to RPV flange level
- Fire Protection Condition IV: Credit is taken for fire rounds as fire prevention contingency.
PBF-1562
References:
NP 10.3.6 Revision 2 1013/02 Page 5 of 10 NP 10.2.1