IR 05000317/2018010
| ML18292A579 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 10/19/2018 |
| From: | Mel Gray Division of Reactor Safety I |
| To: | Bryan Hanson Exelon Generation Co, Exelon Nuclear |
| References | |
| IR 2018010 | |
| Download: ML18292A579 (13) | |
Text
October 19, 2018
SUBJECT:
CALVERT CLIFFS NUCLEAR POWER PLANT - DESIGN BASES ASSURANCE INSPECTION (TEAMS) REPORT 05000317/2018010 AND 05000318/2018010
Dear Mr. Hanson:
On October 5, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Calvert Cliffs Nuclear Power Plant (CCNPP), Units 1 and 2. The NRC inspectors discussed the results of this inspection with Mr. Todd Tierney, Plant Manager, and other members of your staff. The results of this inspection are documented in the enclosed report.
The NRC inspectors did not identify any findings or more-than-minor violations.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and the NRCs Public Document Room in accordance with Title 10 of the Code of Federal Regulations (10 CFR), Part 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Mel Gray, Chief Engineering Branch 1 Division of Reactor Safety
Docket Nos.
50-317 and 50-318 License Nos. DPR-53 and DPR-69
Enclosure:
Inspection Report 05000317/2018010 and 05000318/2018010
Inspection Report
Docket Numbers:
50-317 and 50-318
License Numbers:
Report Numbers:
05000317/2018010 and 05000318/2018010
Enterprise Identifier:
I-2018-010-0013
Licensee:
Exelon Generation Company, LLC
Facility:
Calvert Cliffs Nuclear Power Plant, Units 1 and 2
Location:
Lusby, MD
Inspection Dates:
September 17, 2018, through October 5, 2018
Inspectors:
J. Schoppy, Senior Reactor Inspector, Division of Reactor Safety
(DRS), Team Leader
J. Lilliendahl, Senior Emergency Response Coordinator, DRS
M. Orr, Reactor Inspector, DRS
S. Pindale, Senior Reactor Inspector, DRS
C. Baron, NRC Mechanical Contractor
S. Kobylarz, NRC Electrical Contractor
Approved By:
M. Gray, Chief
Engineering Branch 1
Division of Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring Exelons performance at
Calvert Cliffs Nuclear Power Plant Units 1 and 2 by conducting a design bases assurance inspection in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors.
Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.
No findings or more-than-minor violations were identified.
INSPECTION SCOPES
This inspection was conducted using the appropriate portions of the inspection procedure in effect at the beginning of the inspection unless otherwise noted. Currently approved inspection procedures with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html.
Samples were declared complete when the inspection procedure requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter 2515, Light-Water Reactor Inspection Program - Operations Phase. The team reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
===71111.21M - Design Bases Assurance Inspection (Teams)
The team evaluated the following components, permanent modifications, and operating experience during the weeks of September 17, 2018, and October 1, 2018.
For the components, the team reviewed the attributes listed in IP 71111.21M, Appendix A, Component Review Attributes, such as those listed below. Specifically, the team evaluated these attributes as per 71111.21M, Appendix B, Component Design Review Considerations and 71111.21M, Appendix C, Component Walkdown Considerations. Specific documents reviewed are listed in the Documents Reviewed section.
Components===
- Unit 2 No. 21 High Pressure Safety Injection Pump o Material condition and installed configuration (e.g., visual inspection/walkdown)o Normal, abnormal, and emergency operating procedures o Consistency among design and licensing bases and other documents/procedures o System health report, maintenance effectiveness and records, and corrective action history o Equipment/environmental controls and qualification o Design calculations o Surveillance testing and recent test results o System and component level performance monitoring o Equipment protection from fire, flood, and water intrusion or spray o Heat removal cooling water and ventilation
The team used Appendix B guidance for Valves, Pumps, Instrumentation, and As-Built System.
- Unit 1 No. 11 125 Vdc Battery o Material condition and installed configuration (e.g., visual inspection/walkdown)o Normal, abnormal, and emergency operating procedures o Consistency among design and licensing bases and other documents/procedures o System health report, maintenance effectiveness and records, and corrective action history o Operator actions o Design calculations o Surveillance testing and recent test results o Environmental conditions o Contactor and fuse ratings; Component adequacy for minimum voltage o Equipment protection from fire, flood, and water intrusion or spray o Heat removal cooling water and ventilation
The team used Appendix B guidance for Instrumentation, Circuit Breakers and Fuses, Cables, Electric Loads, and As-Built System.
- Unit 1 No. 14 4160V Bus
o Material condition and installed configuration (e.g., visual inspection/walkdown)o Normal, abnormal, and emergency operating procedures o Consistency among design and licensing bases and other documents/procedures o System health report, maintenance effectiveness and records, and corrective action history o Control logic o Design calculations o Surveillance testing and recent test results o Equipment protection (sealing of cable and conduits)o Environmental conditions o Protection coordination; Load in-rush and full load current o Range, accuracy, and setpoint of installed relays o Equipment protection from fire, flood, and water intrusion or spray
The team used Appendix B guidance for Instrumentation, Circuit Breakers and Fuses, Cables, Electric Loads, and Motor Control Centers (MCCs).
- Unit 1 Containment Sump Recirculation Valve 1-MOV-4144
o Material condition and installed configuration (e.g., visual inspection/walkdown)o Normal, abnormal, and emergency operating procedures o Consistency among design and licensing bases and other documents/procedures o System health report, maintenance effectiveness and records, and corrective action history o Equipment/environmental controls and qualification o Operator actions o Design calculations o Surveillance testing and recent test results o Equipment protection (sealing of cable and conduits)o Equipment protection from fire, flood, and water intrusion or spray The team used Appendix B guidance for Valves, Instrumentation, Cables, Electric Loads, and As-Built System.
Component, Large Early Release Frequency (1 Sample)
- Unit 2 Containment Penetration Room Ventilation System
o Material condition and installed configuration (e.g., visual inspection/walkdown)o Normal, abnormal, and emergency operating procedures o Consistency among design and licensing bases and other documents/procedures o Maintenance effectiveness and records, and corrective action history o Operator actions o Design calculations o Surveillance testing and recent test results o Environmental conditions o Equipment protection from fire, flood, and water intrusion or spray o Heat removal cooling water and ventilation
The team used Appendix B guidance for Instrumentation, Motor Control Centers (MCCs),and As-Built System.
Permanent Modifications (5 Samples)
- ECP-14-000064; ESR-13-000829 - 4kV Normal Incoming Supply Feeder Breaker Modification
- ECP-14-000159: AFW Emergency Ventilation System Upgrade
- ECP-15-000727: ESR-15-002466 - Provide Engineering to Raise RAS Setpoint
- ECP-16-000462: Update Fairbanks Morse Trip Circuit Design
Operating Experience (3 Samples)
- NRC Information Notice 2014-03: Turbine-Driven Auxiliary Feedwater Pump Overspeed Trip Mechanism Issues, dated February 25, 2014
- Prairie Island 2 10CFR21 (2017-45-00), EDG High Crankcase Pressure Switch Mounting Bracket Fastener System Failure, dated September 14, 2017
- Report of Defect per 10CFR21, Basler Electric SBSR Automatic Voltage Regulator Card Solder Joints, dated September 21,
INSPECTION RESULTS
No findings or more-than-minor violations were identified.
EXIT MEETINGS AND DEBRIEFS
The team verified no proprietary information was retained or documented in this report.
- On October 5, 2018, the team presented the Design Bases Assurance Inspection (Teams)results to Mr. Todd Tierney, Plant Manager, and other members of Exelon staff.
DOCUMENTS REVIEWED
71111.21M - DESIGN BASES ASSURANCE INSPECTION (TEAMS)
Audits and Self-Assessments
04058864, Readiness Review for 2018 NRC Design Bases Assurance Inspection Self
Assessment, dated 6/1/18
Calculations
95-0188, Seismic II/I Evaluation of ILRT Piping to Containment Penetration #50, Revision 0
A01080.F02-002, Pressure Locking Thrust Calculation, Revision 1
CA0772, AC Load Flow Study, Revision 2
CA04079, Comparison of Available and Required NPSH for the Safety Injection and
Containment Spray Pumps during Post-RAS Operation, Revision 0
CA04691, Circulating Water Flooding in the Turbine Building through a Ruptured Expansion
Joint, Revision 0
CA07773, AFW Pump Room Cooler Sizing, Revision 0
CA10206, Refueling Water Tank Level RAS Setpoint Determination, Revision 0
E-85-010, 125VDC Battery 01, 11, 12, 21 and 22 Fault Current Calculation, Revision 2
E-87-009, 125VDC System Short-Circuit Review, Revision 1
E-89-005, SBO & LOCA Battery Duty Cycle - Bus 11, Revision 4
E-89-042, Voltage Drop in DC Systems, Revision 4
E-90-033, Master Fault Calculation, Revision 4
E-90-038, MOV Minimum Voltages Lasting More than 5 Seconds, Revision 11
E-90-071, 4kV Bus 14 Protective Devices, Revision 6
I-94-003, Refueling Water Tank Level(s) and Capacity, Revision 4
M-91-044, MOV Weak Link Analysis, Revision 2
M-90-193, Flood Heights Resulting from a Pipe Break in the Turbine Building, Revision 0
M-91-197, Maximum Line and Differential Pressure Valves 1 & 2-MOV-4144 & 4145 May
Experience During Operation, Revision 0
Completed Surveillance, Performance, and Functional Tests
2013-29, Unit 2 Integrated Leakage Rate Test Report, dated 5/8/13
OP-6, PreStartup Checkoff, performed 3/15/18
STP-M-152-1, 11 Station Battery Weekly Check, performed 8/30/18
STP-M-352-1, 11 Station Battery Quarterly Check, performed 6/23/16, 9/22/16, 12/21/16,
3/23/17, 6/22/17, 9/21/17, 12/19/17, 3/22/18, and 6/21/18
STP M544A-2, #21 Penetration Room Exhaust Filter Test, performed 4/6/18
STP M5445-2, #22 Penetration Room Exhaust Filter Test, performed 5/8/18
STP-M-552-1, 11 Station Battery Service Test, performed 11/5/13, 4/1/16, and 4/9/18
STP M-651A-2A, SIAS B-10 Trip Bypass for 2A Diesel Generator, performed 7/31/18
STP M-651A-2B, SIAS B-10 Trip Bypass for 2B Diesel Generator, performed 1/16/15 and
5/16/17
STP M-651C-1B, SIAS B-10 Trip Bypass for 1B Diesel Generator, performed 12/6/16
STP O-4B-1, B Train Integrated Engineered Safety Features Test, performed 3/17/18
STP O-5A21-2, 21 Auxiliary Feedwater Pump Quarterly Surveillance Test, performed 7/25/18
STP O-7A-1, "A" Train Engineered Safety Features Logic Test, performed 5/1/18
STP O-7B-2, B Train Engineered Safety Features Logic Test, performed 10/20/17
STP O-7C-2, A Train Engineered Safety Features Logic Test, performed 5/3/18
STP O-14A-2, A Train Safety Injection, Containment Spray, and SDC Gas Accumulation Test,
performed 7/5/18
STP O-55-2, Unit 2 Containment Integrity Verification Mode 1-4, performed 7/30/18
STP O-70-2, Monthly Test of "A" Train Containment Cooling Units, Iodine Removal Units, &
Penetration Room Exhaust Filter, performed 5/22/18
STP O-71-2, Monthly Test of "B" Train Containment Cooling Units, Iodine Removal Units, &
Penetration Room Exhaust Filter, performed 6/4/18
STP O-73G-2, HPSI Pump Large Flow Test, performed 2/19/17
STP O-731A-2, A-Train HPSI Pump and Check Valve Operability Test, performed 8/1/18
STP XM-503-1 Calibration Check of #14 4KV Bus LOCI and Shutdown Sequencer, performed
3/15/16
TURB-04, AFW Turbine Overspeed Trip Adjustment, performed 3/17/18
Completed Preventive Maintenance, Calibrations, and Inspections
1-44-2-O-Q, Condensate Level Switch, performed 4/3/18
2-44-2-O-Q, Condensate Level Switch, performed 2/22/18
Initial Scoping Report 0027, Aging Related Degradation Inspection Check List for Identification
of Aging Effects, Unit 2 5 Fan Room, dated 1/4/11
Corrective Action Issue Reports (IRs)
4-024-386
2009-6043
2009-6251
2009-6252
2014-0396
1700131
1700348
1786965
1803213
1803587
1803588
1803624
1803831
1851368
1852812
1855691
1856563
1856715
1856779
1857138
2010203
2402107
2409006
2454706
2464168
2482579
2494780
2497552
2498947
28973
2552315
2552673
2554032
2555303
2574382
2574385
2580916
2581489
2581500
2589648
2595124
2633221
2639867
2644934
2668740
2676847
2682276
2689863
2703487
2714272
3980419
4007684
25294
29406
4033503
4054408
4056915
4058864
4063744
4064642
4065747
4090677
4106197
4111139
4113435
4113450
4113717
4114625
4116170
4130071
4144777
4149542
4154234
4155119
4161927
4170441*
4175196*
4175295*
4177713*
4178917*
4179072*
4179914*
4179941*
4180135*
4180558*
4180563*
4180608*
- IR written as a result of this inspection
Drawings
61-076-B, Schematic Diagram High Pressure Safety Injection Pump 13, Revision 6
2083-34, Terry Steam Turbine, Revision 1
2103-0001, High Pressure Safety Injection Pump Outline Dimension, Revision 4
2103-0014, Piping-Bearing and Stuffing Box w/Seal Circulation, Revision 5
33810, High Pressure Safety Injection Pump Performance Curve, dated 12/19/69
60307, Area & Equipment Drains Containment & Aux. Bldg. Unit 1 Plan at El 27, Revision 8
60710 Sh.1, Component Cooling System, Revision 46
60722 Sh. 2, Auxiliary Building Ventilation System, Revision 48
60722 Sh. 3, Auxiliary Building Ventilation System, Revision 17
60723 Sh. 2, Ventilation Systems Containment Turbine and Penetration Rooms, Revision 38
60731 Sh. 1, Safety Injection and Containment Spray Systems, Revision 94
60733 Sh. 3, Miscellaneous Drain & Sump Piping Turbine & Diesel Bldg. and Yard, Revision 64
61001 Sh. 1, Electrical Main Single Line Diagram, Revision 48
61005, Meter and Relay Diagram 4KV System Unit Buses 11 and 14, Revision 36
61022 Sh. 1, Single Line Diagram 120VAC Vital System, Revision 57
61024 Sh. 1, Single Line Diagram 125VDC Vital System Bus 11, Revision 57
61024 Sh. 2, Single Line Diagram 125VDC Vital System Bus 14, Revision 3
61024 Sh. 3, Single Line Diagram 125VDC Vital System Bus 15, Revision 3
61071 Sh. 7, Schematic Diagram 4KV Bus 14 Feeder Breaker 152-1401, Revision 19
61071 Sh. 8, Schematic Diagram 4KV Bus 14 Feeder Breaker 152-1414, Revision 20
61076 Sh. 4, Schematic Diagram High Pressure Safety Injection Pump 12, Revision 18
61076 Sh. 7, Schematic Diagram High Pressure Safety Injection Pump 13, Revision 17
61076 Sh. 30B, Schematic Diagram Reactor Safeguards Containment Sump Discharge Valve
1MOV4144, Revision 4
61076 Sh. 31, Schematic Diagram Reactor Safeguards CS & SI Pumps Recirc Valve
1MOV659, Revision 18
61740 Sh. 1, Containment Liner Plan, Elevation and Penetrations, Revision 22
61740 Sh. 2, Containment Structure Penetrations, Revision 8
2151 Sh. 1, Appendix R Separation Requirements Aux. Bldg. & Containment Structure Floor
Plan at El. 27, Revision 10
2731 Sh. 1, Safety Injection and Containment Spray Systems, Revision 84
63076 Sh. 31, Reactor Safeguards CS and SI Pumps, Recirc Valves 2MOV659, Revision 14
63076 Sh. 31A, Reactor Safeguards CS and SI Pumps, Recirc Valves 2MOV660, Revision 2
64311, Simplified System Drawing - Safety Injection and Containment Spray, Revision 14
64316, Containment and Penetration Room Ventilation SL-065A, Revision 12
84311, Safety Injection and Containment Spray System, Revision 15
ECP-16-0462-CN-001, Update Fairbanks Morse EDG Trip Circuit Design, Revision 0
ECP-16-0462-CN-006, Update Fairbanks Morse EDG Trip Circuit Design, Revision 0
ECP-16-0462-PCN-1002-CN-005, Update Fairbanks Morse EDG Trip Circuit Design, Revision 0
N2010-FCU-4-FAB Sh. 5, Auxiliary Feedwater Pump Room Emergency Cooler/Fan Coil Unit
Fabrication Drawing, Revision 1
Engineering Evaluations
1MOV4144, MIDACALC Results - AC Motor Operated GL96-05 Gate Valve, Revision 2
Comments on Calculation CA07773, AFW Pump Room SR Ventilation Gothic Evaluation and
Unit Sizing, dated 4/27/12
ECP-12-000318, AFW Pump Room Emergency Ventilation System, Revision 0
ECP-14-000064 Form 7 and 7A, Design Change Technical Evaluation, Revision 3
ECP-14-000064 Form 9, Installation Testing Instructions, Revision 4
ECP-14-000159-015-7-01, Form 7, Design Change Technical Evaluation, Revision 3
ECP-14-000159-015-7A-01, Form 7A, Design Change Technical Evaluation Continuation,
Revision 8
ECP-14-000159-5059-01, AFW Pump Room Emergency Ventilation System Upgrade 50.59
Screen, Revision 9
ECP-15-000023, Technical Evaluation for Connection Resistance Methodology, Revision 0
ECP-15-000727, Raise RAS Setpoint, Revision 2
ECP-16-000353, Enable RWT Outlet MOVs 4142 and 4143 to Close Automatically on a RAS,
Revision 0
ECP-16-000462, Update Fairbanks Morse Trip Circuit Design, Revision 0
ECP-17-000523, Vortexing in the Refueling Water Tank Technical Evaluation, Revision 0
ES-001, Flooding, Revision 5
ES-034, Electrical Device Settings, Revision 1
ES199801327, MOV Pressure Locking Evaluation, Revision 0
Operability Evaluation 17-002, 2CV5171: 21 ECCS Cooler Outlet Control Valve, Revision 0
Project No. 11562-061, AFW Pump Room Elevated Temperature Issue - NRC Comment
Resolution, Revision 0
QL00847, Barrier Function Table, Revision 2
SE00558, Automatic Closure of the RWT Outlet Valve MOVs 50.59 Evaluation, Revision 0
Maintenance Work Orders
C12023668
C20072161
C20074962
C20074963
C20083624
C90728304
C90767769
C91408624
C91426157
C91909242
C91910467
C91944763
C91945787
C92413803
C92543727
C92813807
C92935353
C92957877
C92957878
C92957879
C92957880
C92967907
C93110332
C93445185
C93466890
C93476179
C93509570
C93549452
C93609295
C93622647
C93640623
C93644323
C93644324
Miscellaneous
004, 4160 VAC Electrical Power Distribution System Description, Revision 3
2, Auxiliary Building Ventilation System Description, Revision 7
2-1401, CCNPP Protective Relaying Setting Sheet, Revision 3
2-1410/2/SB2, CCNPP Protective Relaying Setting Sheet, Revision 2
2-1414, CCNPP Protective Relaying Setting Sheet, Revision 3
A116, NRR Letter: Request for Additional Information Regarding Generic Letter 2004-02, dated
7/23/10
Fairbanks Morse Owners Group, Maintenance Guidelines, Voltage Regulator and Excitation
System Maintenance Recommendations, Revision 4
Master Calibration Data Package for 2-PS-4779, dated 2/3/17
Normal and Special (Abnormal) Operations Procedures
1C10-ALM, ESFAS 13 Alarm Manual, Revision 51
1C19-ALM, 13KV & 4KV Essential Feeder Bkrs Contr Board Alarm Manual, Revision 40
1C62/2C62/2C61, 1B/2A/2B Diesel Generator Alarm Manual, Revision 10
AOP-3B, Abnormal Shutdown Cooling Conditions, Revision 30
AOP-71, Loss of 4KV, 480 Volt or 208/120 Volt Instrument Bus Power, Revision 33
EOP-3, Loss of All Feedwater, Revision 23
EOP-5, Loss of Coolant Accident, Revision 30
EOP-8, Functional Recovery Procedure, Revision 41
OI-3A, Safety Injection and Containment Spray, Unit 2, Revision 35
OI-11A, Condensate System, Revision 43
OI-21A, 2A Diesel Generator Operating Instructions, Revision 25
OI-22G, Penetration Room Exhaust System, Revision 6
OI-26A, 125 Volt Vital DC, Revision 21
OI-27C, 4.16 KV System, Revision 28
OI-32A, Auxiliary Feedwater System, Unit 1, Revision 39
OI-32A, Auxiliary Feedwater System, Unit 2, Revision 32
OP-6, PreStartup Checkoff, Revision 53
Operating Experience
NRC Information Notice 2014-03: Turbine-Driven Auxiliary Feedwater Pump Overspeed Trip
Mechanism Issues, dated 2/25/14
Report of Defect per 10CFR21, Basler Electric SBSR Automatic Voltage Regulator Card Solder
Joints, dated 9/21/07
Procedures
BUS-014K, 4 KV Buses 13 and 14 Inspection, Testing and Cleaning, Revision 1
E-10, Testing and Adjustment of Agastat Relays, Revision 5
ER-AA-200-1001, Equipment Classification, Revision 4
ER-CA-450, Structure and System Walkdowns, Revision 0
FTE-59, Periodic Maintenance, Calibration and Functional Testing of Protective Relays,
Revision 8
FTM-11, Rotating Equipment Vibration Monitoring, Revision 3
HVAC-03, Inspection and Replacement of V-Belts, Revision 8
LS-AA-104, Exelon 50.59 Review Process, Revision 10
LS-AA-104-1000, 50.59 Resource Manual, Revision 12
MN-1-209, Predictive Maintenance Program, Revision 7
NSWP-S-06, Core Drilling, Revision 1
OP-CA-102-106, Operator Response Time Program at Calvert Cliffs, Revision 6
TURB-04, AFW Turbine Overspeed Trip Adjustment, Revision 5
Risk and Margin Management
Plant Risk Information e-Book for Calvert Cliffs Nuclear Power Plant, dated 3/1/17
Risk-Informed Inspection Notebook for Calvert Cliffs Nuclear Power Plant Units 1 and 2,
Revision 2.1a
System Health Reports, System Walkdowns, & Trending
HPSI Pump IST Trend Data, dated 1/20/98 - 2/6/18
Auxiliary Feedwater (System 036) System Health Report, dated 7/25/18
High Pressure Injection (System 052) System Health Report, dated 7/23/18
MRFF/MPFF Report Data, 2013 - 2017
Unit 1 and Unit 2 AFW Pump Room Temperature Logs, 7/31/17 - 8/10/18
Vendor Technical Manuals & Specifications
2400-206-1006, GE Magne-Blast Circuit Breaker Instructions GEI-88771D, Revision 0
15138-002-1001, Installation and Operating Instructions for GNB Lead-Calcium Batteries,
Revision 8
ES200800209, Borg-Warner High Pressure Heat Exchanger, dated 11/1/84
Installation, Operation and Maintenance for Bingham Pump Type MSD, dated 11/1/84
VTD 12083-010-1017, Terry Corporation Std Instructions, Section 7, dated 12/9/91