IR 05000255/2020011
| ML20112F494 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 04/21/2020 |
| From: | Karla Stoedter NRC/RGN-III |
| To: | Corbin D Entergy Nuclear Operations |
| References | |
| IR 2020011 | |
| Preceding documents: |
|
| Download: ML20112F494 (12) | |
Text
April 21, 2020
SUBJECT:
PALISADES NUCLEAR PLANT - DESIGN BASIS ASSURANCE INSPECTION (TEAMS) INSPECTION REPORT 05000255/2020011
Dear Mr. Corbin:
On March 19, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Palisades Nuclear Plant and discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
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 at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Karla K. Stoedter, Chief Engineering Branch 2 Division of Reactor Safety
Docket No. 05000255 License No. DPR-20
Enclosure:
As stated
Inspection Report
Docket Number:
05000255
License Number:
Report Number:
Enterprise Identifier: I-2020-011-0025
Licensee:
Entergy Nuclear Operations, Inc.
Facility:
Palisades Nuclear Plant
Location:
Covert, Michigan
Inspection Dates:
March 02, 2020 to March 19, 2020
Inspectors:
C. Baron, Contractor
J. Benjamin, Senior Reactor Inspector
I. Hafeez, Reactor Inspector
B. Jose, Senior Reactor Inspector
S. Kobylarz, Contractor
E. Sanchez Santiago, Senior Reactor Inspector
Approved By:
Karla K. Stoedter, Chief
Engineering Branch 2
Division of Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (teams) inspection at Palisades Nuclear Plant, 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.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs 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 IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensees performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.
REACTOR SAFETY
===71111.21M - Design Bases Assurance Inspection (Teams)
The inspectors evaluated the following components and listed applicable attributes, permanent modifications, and operating experience:
Design Review - Risk-Significant/Low Design Margin Components (IP Section 02.02)
=
- (1) Safety-Related Service Water Pump P-7A
- Technical Specifications
- Protection Against External Events
- Protection Against Internal Events
- Maintenance Effectiveness
- Overall System Health
- Translation of Vendor Specifications
- Configuration Management
- Testing
- Pump and Check Valve In-service Testing (IST)
- Pump Flow Quarterly and Semi-Annual Flow Verification
- Calculations
- Service Water Outlet Submergence Back Pressure
- Service Water System Hydraulic Model
- Generation of Flow Rate Acceptance Criteria for Technical Specification Surveillance Test RO-216
- Emergency Diesel Generator Voltage and Frequency Variation Evaluation on Safety-Related Service Water Pumps
- (2) Safety-Related High Pressure Control Air Receiver T-9A
- Design Basis Documents
- Technical Specification Applicability
- Testing
- Small Break Loss of Coolant Accident and Concurrent Loss of Offsite Power Supply Capability
- Maintenance Effectiveness
(3)125 Vdc Distribution Panels ED-11/11A/21/21A
- Load Flow Calculations to determine whether panels were applied within required current ratings
- Voltage Drop Calculations
- Voltage Rating During Battery Equalizing
- Short Circuit and Protective Device Calculations to determine whether equipment was adequately protected and immune from spurious tripping
- Maintenance Schedules, Procedures, and Maintenance Records, including Circuit Breaker Test Requirements, to determine whether panels and associated circuit breakers were properly maintained
- Visual inspection of the 125 Vdc Distribution Panels to assess material condition and the presence of hazards
(4)125 Vdc Station Battery ED-01 and ED-02
- Short Circuit and Protective Device Calculations to determine whether the batteries were adequately protected and immune from spurious tripping
- Battery Surveillance Procedures and Completed Tests to determine whether the acceptance criteria and results were consistent with design basis calculations
- Corrective Action Documents and Maintenance Records to determine whether there were any adverse operating trends
- Visual Inspection of the 125 Vdc Batteries to assess material condition and the presence of hazards due to battery cover cracks
(5)125 Vdc Battery Charger ED-15
- Material Condition and Configuration (e.g., Visual Inspection during a Walkdown)
- Operating Environment
- Consistency Between Station Documentation (e.g., Procedures) and Vendor Specifications
- Maintenance Effectiveness
- Corrective Maintenance Records and Corrective Action History
- Charger Short Circuit Contribution
- Surveillance Testing
- Float and Equalize Voltage and Coordination
Design Review - Large Early Release Frequency (LERFs) (IP Section 02.02) (1 Sample)
- (1) Motor Operated Valve (MOV) 3015: Shutdown Cooling Return from Reactor Coolant System
- Technical Specifications
- Protection Against External Events
- Protection Against Internal Events
- Maintenance Effectiveness
- Overall System Health
- Translation of Vendor Specifications
- In-service and Generic Letter 89-10 Testing
- Calculations
- Weak Link Analysis
- Pressure Lock/Thermal Binding Evaluation
- Generic Letter 89-10 MOV Thrust Window
- Torque Reduction at Elevated Temperatures
- Design Basis Flows and Delta Pressures
- Generic Letter 89-10 Valve Factor
- Generic Letter 89-10 Stem Nut Friction
Modification Review - Permanent Mods (IP Section 02.03) (4 Samples)
- (1) Engineering Change (EC) 74105 - SPTS-1474; Replace Speed Switch for Emergency Diesel Generator 1-1
- (2) EC 54503 - 250/251-205: Replace Obsolete Overcurrent Relay for Pump P-2B
- (3) EC 55409 - Child EC to Replace Motor Control Center Breaker
- (4) EC 55441 - Install High Head Auxiliary Feedwater Pump P-8D & Shed and Cross Connect Tanks T-2 to T-939 - NFPA 805 Project
Review of Operating Experience Issues (IP Section 02.06) (2 Samples)
- (1) NRC Information Notice (IN) 2017-06, Battery and Battery Charger Short Circuit Current Contributions to a Fault on the Direct Current Distribution System
- (2) NRC IN 2002-29 Recent Design Problems in Safety Functions of Pneumatic Systems
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On March 19, 2020, the inspectors presented the design basis assurance inspection (teams) inspection results to Mr. D. Corbin, Vice President, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
71111.21M Calculations
1/4RB
System Protection Calculation Sheet
1/6C
Primary Loop Shut Down Cooling Valve MO-3015
2/20/2012
Protective Device Calculation for Relay 205/250-251
Update Breaker Setting for Breaker 152-204 of Pump P-7A
EA-A-PAL-94-
279-009
Seismic Analysis and Weak Link Calculation for 12" 1500
Forges Stainless Motor Operated Bolted Bonnet Gate Valve
03/20/1995
EA-C-PAL-00-
258-01
High Pressure Air Single Failure Evaluation
EA-C-PAL-97-
0853
Evaluation of the Effect of Submerged Service Water
System (SWS) Outlets on the Minimum Predicted SWS Rate
Using Pipe - Flo
06/27/1997
EA-C-PAL-99-
Generation of Flow Rate Acceptance Criteria for Technical
Specifications Surveillance Test RO-216
EA-CPCP-PAL-
DSS-94-01
GL 89-10 Program Worst Case Pressures and Flows
04/13/1995
EA-EC-235-1
Assessment of the High Pressure Air System's Capacity to
Cycle Valves in the West Engineering Safeguards
EA-EC64020-01
NFPA 805 Related 125 Vdc Electrical Coordination Analysis
EA-ELEC-EDSA-
004
Palisades System Level Under Voltage Relay Setpoint
Determination
EA-ELEC-EDSA-
006
Palisades AC Power System Short Circuit Analysis
EA-ELEC-EDSA-
DC System Battery D02 Short Circuit Analysis
EA-GL-89-10-01
Generic Letter 89-10 Motor Operated Valve (MOV) Thrust
Window Calculations
EA-GL-89-10-05
Design Valve Factors for Palisades GL - 89-10 MOVs
2/03/1999
EA-GL-89-10-10
Periodic Verification of GL-89-10 MOV Operating Margins
Using Static Diagnostic Test Results
EA-GL-8910-02
Torque Loss Calculation for MOVs at Elevated
Temperatures
EA-GL-8910-04
Replacement of MOV Stem Lubricant
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
EA-GL-8910-DP-
Consolidated MOV 89-10 Analysis of the Worst Case
Operating Scenarios
EA-MOV-KALSI-
Fatigue Life Prediction of Limitorque Type SBM/SB/SBD
Actuator Torsional Components
05/11/1995
EA-PIPEFLO-
SWS-01
Service Water Hydraulic Model Using Pipe - Flo
EA-PLTB-02
Pressure Locking Evaluation for MOV 3015 and 3016
Corrective Action
Documents
Resulting from
Inspection
CR-PLP-2020-
00712
20 Design Bases Assurance Inspection, the NRC
Identified a Small Amount of Green Corrosion on Station
Battery ED-01 Cell #43 Positive Post
03/03/2020
CR-PLP-2020-
00737
During DBA Inspection Walkdown of High Pressure Air
Compressor T-9A in East Safeguards, Temporary Lighting
with no Work Tags and Unplugged was Found Around T-9A
03/04/2020
CR-PLP-2020-
00743
Work Order (WO) 52790738 was Found to Be Missing Page
of the Completed RE-133 Procedure
03/05/2020
CR-PLP-2020-
00753
During the 2020 Design Bases Assurance Inspection, the
NRC Questioned why the Dial Setting on One of the
Adjustable Trips on Battery Charger ED-15 Output Breaker
2-15A is Set at a Different Position than the Other
Adjustable Trip Settings
03/05/2020
CR-PLP-2020-
00754
20 Design Bases Assurance Inspection, the NRC
Identified, During an ED-01 Walkdown, a Lid Crack Between
the Positive Posts of Cell #23
03/05/2020
CR-PLP-2020-
00882
During the 2020 Design Bases Assurance Inspection, the
NRC Questioned the Technical Specification Impact from
Non-Functional High Pressure Air Compressors C-6A/B
03/18/2020
CR-PLP-2020-
00888
During the 2020 Design Bases Assurance Inspection, It was
Identified that Section 9.5.2.5 Implies There is a Mitigating
Function for High Pressure Air Compressors
03/18/2020
Drawings
E-1, Sheet 1
Single Line Meter & Relay Diagram, 480 Volt Motor Control
Center
E-1, Sheet A
Single Line Meter & Relay Diagram
E-5, Sheet 1
Single Line Meter & Relay Diagram, 480 Volt Motor Control
Centers
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
E-625
Wiring Diagram Battery D02, Fuse Box JL259
E-8
Single Line Meter & Relay Diagram, 125 Vdc, 120 V
Instrument & Preferred AC System
E-8, Sheet 1
Single Line Meter & Relay Diagram 125 Vdc, 120 V
Instrument & Preferred AC System
E-8, Sheet 2P
25 Vdc Distribution Panel No 2 ED21-1 Breaker Schematic
Diagrams
M-207, Sheet 2
P&ID Auxiliary Feedwater System
M-207, Sheet 3
P&ID P-8D/K-17 Diesel Driven Auxiliary Feedwater System
M-213
P&ID Service Water, Screen Structure and Chlorinator
Engineering
Changes
0000060795
25 Vdc Panel ED-21-1 Replacement
250/251-205: Replace Obsolete O/C Relay For Pump P-2B
09/10/2015
Engineering
Evaluations
PLP-RPT-12-
0014
Engineering Report System Protection Engineering
Protective Device Calculation Review (EGAD-ELEC-22)
Miscellaneous
00520027
QO-14A-P-7A IST Service Water Pump
10/25/2019
5608
LCR 25: Foreign Material Inside Jar
05/08/2019
7S007.0
Seismic Test Report for C&D Batteries P/N: LCUN-33
Completed Test:
9.20
Service Water Flow Verification 1R26
11/12/2018
DBD-1.02
Design Basis Document (DBD) Service Water System
DBD-1.05
Design Basis Document for Compressed Air Systems
DBD-2.01
DBD Low Pressure Safety Injection System
DBD-2.04
Design Basis Document for Primary Coolant System
DBD-4.02
DBD for 125 Vdc System (Safety-Related)
Palisades Plant - Facility Operating License
2/21/1991
E11B
Specification for Inverter ED-06, ED-07, ED-08, and ED-09
and Battery Charger D15, D16, D17 and D18 Replacement
Solidstate Controls, Inc. Instruction/Technical Manual 200
Ampere Charger - Palisades
EA-SC-96-033-01
Replace Existing Chargers/Inverters
ESI-SR-17-199
Seismic Qualification of Speed Switch, 125 Vdc Input ESI
P/N: ESI50269B (DYNALCO P/N: SST2400A-424)
LER - 98-006-01
Licensee Event Report - Manual Operator Actions Not
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Adequately Addressed in Operating Procedures
NB-PSA-SY-CIS
Palisades Probabilistic Risk Analysis (PRA) System
Notebook Containment Isolation and Penetrations
NB-PSA-SY-HPA
Palisades PRA Notebook High Pressure Air System
NB-PSA-SY-PZR
Palisades PRA Notebook Pressurizer Pressure and Level
Control System and Power Operated Relief Valves
NB-PSA-SY-SWS
Palisades PRA Notebook Service Water System
OE-NOE-2017-
00346
NRC-IN-2017-06 - Battery & Battery Charger Short-Circuit
Contributions to a Fault on the Direct Current Distribution
System
10/04/2017
PLLP-ESPO-
PBSO-SWS
Training: Palisades Basis System Orientation - Service
Water System
QO-14B 0120
Completed Test: Inservice Test Procedure - Service Water
Pumps
01/14/2020
RO-144 1R26
Completed Test: Comprehensive Pump Test Procedure,
Service Water Pumps P-7A, P-7B, P-7C 1R26
11/12/2018
Replace Safety Related Battery Chargers ED-15,16, 17& 18
& Inverters ED-06, 07, 08 & 09
Specification No:
5935-M-11
Specification for Service Water Pumps Palisades Plant
Consumers Power Company
08/25/1967
T-SC-96-033-01
Post Installation Test for Battery Charger 1 (ED-15)
Procedures
Primary Coolant Leak
Primary Coolant Leak
Primary Coolant Leak
ARP-3 Electrical
Auxiliaries and
Diesel Generator
Scheme Rev. 82
EK-05 (EC-11)
Electrical Auxiliaries and Diesel Generator Scheme EK-05
(EC-11)
Classification of Structures, Systems, and Components
Loss of Coolant Accident Recovery
EOP-9 MVAA-CA
Maintenance of Vital Auxiliaries - Air
EPS-I-10
Diesel Generator 1-1 Electronic Speed Switch Calibration
and Interlock Check
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Procedure No
1.01
Material Condition Standards and Housekeeping
Responsibilities
Pressurizer Safety Valves RV-1039, RV-1040, RV-1041
SOP-12
Feedwater System
SOP-20
High Pressure Control Air System
Work Orders
00515984-01
08/19/2019
51660162-01
ED-15; Overhaul Battery Charger
05/06/2010
2436095
VOP 315 Static Test
03/30/2017
2646112-02
Design Engineering System Protection - Settings Station
Battery Charger #1 ED-15
05/02/2017
2687593-01
ED-15 Battery Charger #1 PM
11/09/2017
2693245-01
RE-133 -ED-15, Battery Charger No 1 Performance Test
11/09/2017
2713165-01
SPTS-1474; Replace Speed Switch (EC 75105)
2/06/2018
2722763-02
1-1 Diesel Tach Pak Calibration
2/08/2018
2764439
Inspect Electrical Panel Water Seals
2847642
QO-4 Shutdown Cooling Valves IST
07/31/2019