ML042470154
| ML042470154 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 09/01/2004 |
| From: | Nebraska Public Power District (NPPD) |
| To: | Office of Nuclear Reactor Regulation |
| Honcharik M, NRR/DLPM, 301-415-1774 | |
| References | |
| TAC MC3770 | |
| Download: ML042470154 (26) | |
Text
1 Cooper Nuclear Station Diesel Fuel Oil Storage Tank One-Time Tech Spec Change September 2004
2 Agenda 3/4 Introduction (Paul Fleming, Licensing Manager) 3/4 Background (Mark Lingenfelter, DG System Engineer) 3/4 Tank Coating and Pipe Flush Project (Rich Dewhirst, Nuclear Projects Director) 3/4 Defense-in-Depth Strategies (Mark Lingenfelter) 3/4 Technical Specifications (Ed McCutchen, Licensing Supervisor, )
3/4 Summary (Paul Fleming) 3/4 RAIs and Responses (Ed McCutchen, et. al.)
3 Background - Configuration Prior to 3/04 Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter STNR STNR (5-micron)
(0.009 in)
(0.009 in)
(5-micron)
(0.020 in)
(0.020 in)
4 Present Day Arrangement Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
Fuel Offload Filter (10-micron)
Addtional On-site Tanker
(~ 7,000 gal)
~ 300 ft hose (Located Inside Protected Area)
Can be Connected to either Day Tank N.O.
(~ 7,000 gal)
(Located Outside Protected Area)
5 Fuel strainer - Before & After Before: 1.25 OD x 3.00 Tall Strainer surface area - 11.7 in2 After: 3.37 OD x 6.90 Tall Strainer surface area - 65.0 in2
6 Tank Coating and Line Flushing Project During the weeks of 10/25 and 11/1/2004, CNS will perform the following:
- Isolate tank and off-load fuel
- Clean and Inspect storage tanks
- High flow flushing of underground piping
- Tank corrosion inhibitor lining will be applied
7 Staging Equipment Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
Maintenance Tanker
(~ 7,000 gal)
(Located Outside Protected Area)
Can be Connected to either Day Tank Transfer Pump 480V Power Cable N.O.
DGDO-V-19 DGDO-V-22 DGDO-V-23 Temporary Storage Tank (Carbon Steel - 21,000 gal)
Alternate NOTE: Max Op Level = 10' - 6" (29,816 gal)
Polyetheylene - 6900 gal Temporary Overflow Tank Pump/FIlter Truck (or skid)
Backup Temporary Pump Hoses (~600 ft) & Fittings To From Addtional On-site Tanker (Located Inside Protected Area)
(~ 7,000 gal)
Fuel Offload Filter (10-micron)
~ 300 ft hose Valve Bonnet Fitting N.O.
8 Site - DG Fuel Oil System Layout General Area of Location for Temporary Storage Tank and Temporary Tanker General Area of Location for Overflow Tank Maintenance Tanker Outside Protected Area
9 Configuration-Fuel Off-Load & Tank Coating (Shown for B Tank)
Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
X N.O.
EMPTY Blank Flange DGDO-V-19 DGDO-V-22 DGDO-V-23 Temporary Storage Tank (Carbon Steel - 21,000 gal)
NOTE: Max Op Level = 10' - 6" (29,816 gal)
Polyetheylene - 6900 gal Temporay Overflow Tank Pump/FIlter Truck (or slid)
To From N.O.X 28,500 gal (10' - 0")
minimum
10 Configuration During Pipe Flush (Shown for B System)
Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
X N.O.
EMPTY Blank Flange DGDO-V-19 DGDO-V-22 DGDO-V-23 NOTE: Max Op Level = 10' - 6" (29,816 gal)
Pump/FIlter Truck (or skid)
Backup Temporary Pump Flush Return Hose Flush Supply Hose To From N.O.X 28,500 gal (10' - 0")
minimum Valve Bonnet Fitting
11 Post Maintenance Testing 3/4 Sampling & analysis of stored fuel 3/4 Fuel inventory surveillance 3/4 Perform monthly diesel surveillance run 3/4 Perform pump IST test 3/4 Inspect and clean strainer
12 Schedule and Duration (Overview)
Procure lining material and contract vendor to apply coating 24May 15Jul 15 Oct 1 Jun 25 Oct 31 Oct 1 Nov 7 Nov Submit One-time TS Change Request Coat DG2 Tank Coat DG1 Tank Approve one-time Tech Spec request 15 Oct 15 Jul Field Prep & Training 18 Oct 24 Oct Complete
13 Defense in Depth - Administrative 3/4 Inoperable DG will remain available 3/4 No competing scheduled activities 3/4 Special Procedure per Conduct of Infrequently Performed Tests or Evolutions 3/4 Operating & Emergency procedures temporarily revised 3/4 Training of involved personnel prior to commencing 3/4 24-hour support to implement defense-in-depth
14 Defense in Depth - Physical 3/4 Defense in Depth for:
Start of Diesel Generator(s)
Failure of Fuel Transfer Pump Loss of Power to Available Fuel Transfer Pump 3/4 Additional Defense in Depth measure Provide fuel directly to day tank
15 Start of EDGs Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
X N.O.
EMPTY Blank Flange DGDO-V-19 DGDO-V-22 DGDO-V-23 Temporary Storage Tank (Carbon Steel - 21,000 gal)
NOTE: Max Op Level = 10' - 6" (29,816 gal)
Pump/FIlter Truck (or skid)
Backup Temporary Pump To From Available IF Needed N.O.X 28,500 gal (10' - 0")
minimum
16 Failure of Available Fuel Transfer Pump Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
X N.O.
EMPTY Blank Flange DGDO-V-19 DGDO-V-22 DGDO-V-23 Temporary Storage Tank (Carbon Steel - 21,000 gal)
NOTE: Max Op Level = 10' - 6" (29,816 gal)
Pump/FIlter Truck (or skid)
Backup Temporary Pump To From Available IF Needed N.O.X 28,500 gal (10' - 0")
minimum OR Valve Bonnet Fitting
17 Loss of Power to Available Pump Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
X N.O.
EMPTY Blank Flange DGDO-V-19 DGDO-V-22 DGDO-V-23 NOTE: Max Op Level = 10' - 6" (29,816 gal)
Div I - 480 Volts from MCC-K N.O.X Transfer Pump 480V Power Cable Alternate Div II - 480 Volts from MCC-S 28,500 gal (10' - 0")
minimum
18 Additional Defense in Depth Sol Sol To DG1 To DG2 Day Tank #1 Day Tank #2 N.O.
N.O.
N.O.
C.V.
C.V.
C.V.
C.V.
N.C.
N.C.
N.C.
N.C.
N.C.
"A" Storage Tank (~ 32,000 gal)
"B" Storage Tank (~ 32,000 gal)
FLTV-10 FLTV-11 STNR STNR STNR STNR Booster Pump Booster Pump Eng Driven Fuel Pump Eng Driven Fuel Pump Duplex Filter Duplex Filter Flow Meter Flow Meter (5-micron)
(0.020 in)
Duplex Strainer (0.015 in)
(0.020 in)
(5-micron)
Duplex Strainer (0.015 in)
Maintenance Tanker
(~ 7,000 gal)
(Located Outside Protected Area)
Can be Connected to either Day Tank N.O.
DGDO-V-19 DGDO-V-22 DGDO-V-23 Temporary Storage Tank (Carbon Steel - 21,000 gal)
NOTE: Max Op Level = 10' - 6" (29,816 gal)
Pump/FIlter Truck (or skid)
Backup Temporary Pump Hoses (~600 ft) & Fittings To From Addtional On-site Tanker (Located Inside Protected Area)
(~ 7,000 gal)
Fuel Offload Filter (10-m icron)
~ 300 ft hose N.O.
19 Technical Specification - Current 3.8 ELECTRICAL POWER SYSTEMS 3.8.3 Diesel Fuel Oil, Lube Oil, and Starting Air LCO 3.8.3 The stored diesel fuel oil, lube oil, and starting air subsystem shall be within limits for each required diesel generator (DG).
APPLICABILITY: When associated DG is required to be OPERABLE.
ACTIONS
NOTE-------------------------------------------------
Separate Condition entry is allowed for each DG, except for Conditions A, C, and D.
CONDITION REQUIRED ACTION COMPLETION TIME F. Required Action and associated Completion Time of Condition A, B, C, D, or E not met.
OR One or more DGs with diesel fuel oil, lube oil, or starting air subsystem not within limits for reasons other than Condition A, B, C, D, or E.
Immediately F.1 Declare associated DG(s) inoperable.
A. Fuel oil level < 49,500 gal and > 42,800 gal in storage tanks.
48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> A.1 Restore fuel oil level to within limits.
20 Technical Specification - Current 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources Operating LCO 3.8.1 The following AC electrical power sources shall be OPERABLE:
a.
Two qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System; and b.
Two diesel generators (DGs).
APPLICABILITY: MODES 1, 2, and 3.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. One DG inoperable.
1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> AND Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> from discovery of Condition B concurrent with inoperability of redundant required feature(s) 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 24 hours 7 days AND 14 days from discovery of failure to meet LCO B.1 Perform SR 3.8.1.1 for OPERABLE offsite circuit(s).
AND B.2 Declare required feature(s),
supported by the inoperable DG, inoperable when the redundant required feature(s) are inoperable.
AND B.3.1 Determine OPERABLE DG is not inoperable due to common cause failure.
OR B.3.2 Perform SR 3.8.1.2 for OPERABLE DG.
AND B.4 Restore DG to OPERABLE status.
21 Technical Specification - Current LCO 3.8.1 (continued)
CONDITION REQUIRED ACTION COMPLETION TIME F. Required Action and associated Completion Time of Condition A, B, C, D, or E not met.
12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 36 hours F.1 Be in Mode 3.
AND F.2 Be in Mode 4.
SURVEILLANCE FREQUENCY 92 days SR 3.8.1.6 Verify the fuel oil transfer system operates to automatically transfer fuel oil from storage tanks to the day tanks.
SURVEILLANCE REQUIREMENTS
22 Technical Specification - Need for Change 3/4 TS 3.8.3 fuel requirements cannot be met during activity 3/4 SR 3.8.1.6 fuel transfer system automatic operation cannot be met 3/4 TS 3.8.1 Condition B is entered - requires restoration in 7 days 3/4 If Condition B cannot be met, then TS 3.8.1 Condition F requires plant shutdown.
3/4 Extended AOT allows for contingency actions and eliminates potential need for enforcement discretion 3/4 Resolution of strainer fouling issue
23 Proposed One-Time TS Change 3/4 Revise TS Section 3.8.3, LCO to allow use of temporary storage tanks with Temporary Note Fuel oil level in temporary storage tanks may be utilized to support OPERABILITY of a DG during tank cleaning and coating maintenance activities. Equipment (temporary transfer pump, hoses, and appropriate fittings) capable of supplying the fuel oil in the temporary tanks to the DG must be available. The fuel oil level in the temporary tanks, in conjunction with the fuel in the permanent tank must be within the limits of Condition A and Condition C. This note is applicable only to the DG aligned to the full permanent tank.
This temporary note expires upon completion of the fuel oil storage tank cleaning and coating maintenance activities but no later than November 30, 2004.
24 Proposed One-Time TS Change 3/4 Revise TS Section 3.8.1, Condition B, to extend AOT to 14 days with Temporary Note A Diesel Generator which is INOPERABLE solely due to its alignment to a fuel oil storage tank drained in support of fuel oil storage tank cleaning and coating shall be restored to OPERABLE status within 14 days. This temporary note is applicable only if the fuel oil level in the associated DG day tank is maintained above the low level alarm setpoint.
This temporary note expires upon completion of the fuel oil storage tank cleaning and coating maintenance activity, but no later than November 30, 2004.
25 Summary
26 RAIs and Responses 3/4 Seismic Issues 3/4 Off-site power auto-transfer, PMT and Evolution Control