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| issue date = 07/10/2018 | | issue date = 07/10/2018 | ||
| title = NRC Triennial Fire Protection Inspection Report 05000456/2018013; 05000457/2018013 (DRS-A. Shaikh) | | title = NRC Triennial Fire Protection Inspection Report 05000456/2018013; 05000457/2018013 (DRS-A. Shaikh) | ||
| author name = Daley R | | author name = Daley R | ||
| author affiliation = NRC/RGN-III/DRS/EB3 | | author affiliation = NRC/RGN-III/DRS/EB3 | ||
| addressee name = Hanson B | | addressee name = Hanson B | ||
| addressee affiliation = Exelon Generation Co, LLC, Exelon Nuclear | | addressee affiliation = Exelon Generation Co, LLC, Exelon Nuclear | ||
| docket = 05000456, 05000457 | | docket = 05000456, 05000457 | ||
Line 18: | Line 18: | ||
=Text= | =Text= | ||
{{#Wiki_filter: | {{#Wiki_filter:uly 10, 2018 | ||
==SUBJECT:== | |||
BRAIDWOOD NUCLEAR GENERATING STATION, UNITS 1 AND 2NRC TRIENNIAL FIRE PROTECTION INSPECTION REPORT 05000456/2018013; 05000457/2018013 | |||
SUBJECT: BRAIDWOOD NUCLEAR GENERATING STATION, UNITS 1 AND | |||
==Dear Mr. Hanson:== | ==Dear Mr. Hanson:== | ||
Line 31: | Line 28: | ||
Based on the results of this inspection, NRC inspectors did not identify any findings or violations of more than minor significance. | Based on the results of this inspection, NRC inspectors did not identify any findings or violations of more than minor significance. | ||
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading | 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 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding. | ||
-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, | |||
Sincerely,/RA/ | Sincerely, | ||
-456; 50-457 License Nos. NPF | /RA/ | ||
-72; NPF-77 | Robert C. Daley, Chief Engineering Branch 3 Division of Reactor Safety Docket Nos. 50-456; 50-457 License Nos. NPF-72; NPF-77 Enclosure: | ||
IR 05000456/2018013; 05000457/2018013 cc: Distribution via LISTSERV | IR 05000456/2018013; 05000457/2018013 cc: Distribution via LISTSERV | ||
Line 44: | Line 38: | ||
=SUMMARY= | =SUMMARY= | ||
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring | The U.S. Nuclear Regulatory Commission (NRC) continued monitoring licensees performance by conducting a Triennial Fire Protection at Braidwood Nuclear Generating Station 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. NRC and self-revealed findings, violations, and additional items are summarized in the table below. | ||
Licensee-identified non-cited violations are documented under inspection results. | Licensee-identified non-cited violations are documented under inspection results. | ||
List of Findings and Violations No findings or violations were identified Additional Tracking Items None | List of Findings and Violations No findings or violations were identified Additional Tracking Items None | ||
=INSPECTION | =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 2515, Light-Water Reactor Inspection Program - | |||
-rm/doc-collections/insp | Operations Phase. The inspectors 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. | ||
-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 2515, | |||
-Water Reactor Inspection Program | |||
==REACTOR SAFETY== | ==REACTOR SAFETY== | ||
== | ===71111.05TFire Protection(Triennial) | ||
71111. | The inspectors evaluated the following from May 7, 2018, through June 8, 2018. | ||
== | Fire Protection Inspection Requirements === | ||
The inspectors | {{IP sample|IP=IP 71111.05|count=3}} | ||
The inspectors evaluated Fire Protection Program implementation in the following selected areas: | |||
: (1) Fire Area 11.4C-0, Radwaste and Remote Shutdown Control Panel Room | |||
: (2) Fire Area 5.2-1, Division 11 Engineered Safety Feature Switchgear Room | |||
: (3) Fire Area 5.2-2, Division 21 Engineered Safety Feature Switchgear Room | |||
===B.5.b Inspection Activities (2 Samples)=== | |||
The inspectors evaluated feasibility of the following B.5.b Mitigating Strategies: | |||
: (1) Makeup to Refueling Water Storage Tank | |||
: (2) Spent Fuel Pool SprayExternal Strategy | |||
==INSPECTION RESULTS== | |||
71111.05TFire Protection(Triennial) No findings or violations were identified | |||
==EXIT MEETINGS AND DEBRIEFS== | |||
The inspectors confirmed that proprietary information was controlled to protect from public disclosure. No proprietary information was documented in this report. | |||
* On June 8, 2018 the inspectors presented the Triennial Fire Protection inspection results to Mrs. A. Ferko and other members of the licensee staff. | |||
=DOCUMENTS REVIEWED= | =DOCUMENTS REVIEWED= | ||
- BRW-97-0339-M; Braidwood Control Room Heat Up Evaluation; Revision 3 | |||
- BRW-11-0119E; Multiple Spurious Operation Technical Evaluation; Revision 1 | |||
; Revision 1 | - IR 04140755; 2018 NRC FP Triennial InspectionFPR References Update; 05/24/2018 | ||
- IR 00235431; Consider Testing of Remote Shutdown Panel Switches; 07/12/2004 | |||
; 2018 NRC FP Triennial | - IR 00241151; Need ECR for Reset Point for 1/2PSL-IA009; 08/03/2004 | ||
- IR 02597947; NOS ID: Implementation of Testing for RSP Components; 12/09/2015 | |||
; 05/24/2018 | - IR 04038523; Box 8 On 2PMO5J Will Not Test; 08/02/2017 | ||
- AR 02499179; The Installed Relay has the Wrong Coil Voltage Rating; 05/11/2015 | |||
; Consider Testing of Remote Shutdown Panel Switches | - AR 02512046; FP Zone 2D-36 Locked in Alarm; 06/09/2015 | ||
; 07/12/2004 | - AR 02548227; Recurrence of Spurious Alarm in Zone 1D-67; 08/29/2015 | ||
- 0BwOA PRI-5; Control Room Inaccessibility Unit 0; Revision 101 | |||
; Need ECR for Reset Point for 1/2PSL | - 0BwOS PL-R2; Remote Shutdown Panel Control Switch Functional Check (PW Pumps); | ||
-IA009; 08/03/2004 | Revision 0 | ||
- 1BwOA PRI-5; Control Room Inaccessibility Unit 1; Revision 109 | |||
; NOS ID: | - 1BwOS PL-R2-AB; Remote Shutdown Panel Control Switch Functional Check (AB XFER | ||
for RSP Components | Pump); Revision 0 | ||
; 12/09/2015 | - 1BwOS PL-R2-CC; Remote Shutdown Panel Control Switch Functional Check (CC Pumps); | ||
Revision 0 | |||
; Box 8 On 2PMO5J Will Not Test | - 1BwOS PL-R2-CV.1; Remote Shutdown Panel Control Switch Functional Check (CV Pumps); | ||
; 08/02/2017 | Revision 1 | ||
- 1BwOS PL-R2-MS.2; Remote Shutdown Panel Control Switch Functional Check (PORVs); | |||
; The Installed Relay has the Wrong Coil Voltage Rating | Revision 0 | ||
; 05/11/2015 | - 1BwOS PL-R2-RY; Remote Shutdown Panel Control Switch Functional Check (RY Heaters); | ||
Revision 0 | |||
; FP Zone 2D | - 1BwOS PL-R2-SX; Remote Shutdown Panel Control Switch Functional Check (SX Pumps); | ||
-36 Locked in Alarm | Revision 0 | ||
; 06/09/2015 | - 1BwOSR 5.5.8.AF-2A; Unit One Train A Auxiliary Feedwater Valves Indication Test | ||
Surveillance; Revision 17 | |||
; Recurrence of Spurious | - 2BwOA PRI-5; Control Room Inaccessibility Unit 2; Revision 106 | ||
Alarm in Zone 1D | - 2BwOS PL-R2-AB; Remote Shutdown Panel Control Switch Functional Check (AB XFER | ||
-67; 08/29/2015 | Pump); Revision 0 | ||
- 2BwOS PL-R2-CC; Remote Shutdown Panel Control Switch Functional Check (CC Pumps); | |||
; Revision 101 | Revision 0 | ||
- 2BwOS PL-R2-CV.1; Remote Shutdown Panel Control Switch Functional Check (CV Pumps); | |||
Revision 0 | |||
- 2BwOS PL-R2-MS.2; Remote Shutdown Panel Control Switch Functional Check (PORVs); | |||
; Revision 109 | Revision 0 | ||
- 2BwOS PL-R2-RY; Remote Shutdown Panel Control Switch Functional Check (RY Heaters); | |||
Revision 0 | |||
- 2BwOS PL-R2-SX; Remote Shutdown Panel Control Switch Functional Check (SX Pumps); | |||
Revision 0 | |||
- 2BwOSR 5.5.8.AF-2B; Unit Two Train B Auxiliary Feedwater Valves Indication Test | |||
Surveillance; Revision 17 | |||
- BwOP VC-1; Shutdown of Control Room HVAC System; Revision 11 | |||
- BwOP VC-2; Startup of Control Room HVAC System; Revision 14 | |||
- BwOP VP-5; Reactor Containment Fan Cooler Start-Up; Revision 58 | |||
- BwOP VP-6; Reactor Containment Fan Cooler Shutdown; Revision 57 | |||
-2A; Unit One Train | - BwAR 0-37-A4; Alarm No: 0-37-A4; Revision 16 | ||
- EDMG 4; External Spent Fuel Pool Spray Strategy; Revision 3 | |||
; Revision 106 | - EDMG 1; Extensive Damage Mitigation Guideline; Revision 8 | ||
- 00455864 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure | |||
Switch; 08/23/2004 | |||
- 01044558 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure | |||
Switch; 01/09/2009 | |||
- 01504332 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure | |||
Switch; 08/06/2014 | |||
- 01741169 01; Unit 2 Remote Shutdown Panel Control Power Check; 10/21/2015 | |||
- 01824974 01; Unit 1 Remote Shutdown Panel Control Power Check; 10/24/2016 | |||
- 01872317 01; Unit 2 Remote Shutdown Panel Control Power Check; 05/18/2017 | |||
- 04680419; Unit 2 Remote Shutdown Panel Control Power Check (PMID/RQ 54750-01; Partial | |||
Performance To Verify Box 8 Annunciator Window Lights); 08/02/2017 | |||
- 04711799 01; Unit 0 Operations Abnormal Procedures Local Equipment Check Quarterly | |||
-2B; Unit Two Train B Auxiliary Feedwater Valves Indication Test Surveillance | Surveillance; 02/09/2018 | ||
; Revision 17 | - 04756762 01; Unit 1 Remote Shutdown Instrumentation Monthly Surveillance; 04/06/2018 | ||
- 04756766 01; Unit 2 Remote Shutdown Instrumentation Monthly Surveillance; 04/13/2018 | |||
; Revision 11 | - 20E-0-3672; Cable Pans Routing Aux Building; Revision K | ||
- 20E-0-3361 CT1; Conduit Tabulation Aux Building; Revision AD | |||
; Revision 14 - BwOP VP-5; Reactor Containment Fan Cooler Start | - 20E-0-3361; Electrical Installation Aux. Building; Revision DK | ||
-Up; Revision 58 - BwOP VP-6; Reactor Containment Fan Cooler Shutdown | - 20E-1-4111D; External Wiring Diagram, Process I & C Rack Channel 4; Revision Y | ||
; Revision 57 - BwAR 0-37-A4; Alarm No: 0 | - 20E-1-4108E; Internal/External Wiring Diagram, Safety Valve Room; Revision 1 | ||
-37-A4; Revision 16 - EDMG 4; External Spent Fuel Pool Spray Strategy | - 20E-1-4086; Elevation, Remote Shutdown Panel; Revision W | ||
; Revision 3 | - 20E-1-4006A; Key Diagram, 4160V ESF SWGR Bus 141; Revision 1 | ||
- 20E-1-4610A; Elevation, 4160V SWGR Bus 141; Revision 1 | |||
; Revision 8 - 00455864 01 | - 20E-1-4007A; Key Diagram, 480V ESF Substation Bus 131X; Revision M | ||
; Unit 1 1PSL | - 20E-2-4006A; Key Diagram, 4160V ESF SWGR Bus 241; Revision F | ||
-IA009 Remote Shutdown Control Panel IA Header Pressure Switch; 08/23/2004 | - 20E-2-4610A; Elevation, 4160V SWGR Bus 241; Revision G | ||
- 20E-2-4007A; Key Diagram 480V ESF Substation Bus 231X; Revision K | |||
; Unit 1 1PSL | 5 | ||
-IA009 Remote Shutdown Control Panel IA Header Pressure Switch; 01/09/2009 | |||
; Unit 1 1PSL | |||
-IA009 Remote Shutdown Control Panel IA Header Pressure Switch; 08/06/2014 | |||
; Unit 2 Remote Shutdown Panel Control Power Check | |||
; 10/21/2015 | |||
; Unit 1 Remote Shutdown Panel Control Power Check | |||
; 10/24/2016 | |||
; Unit 2 Remote Shutdown Panel Control Power Check | |||
; 05/18/2017 | |||
-01; Partial Performance To Verify Box 8 Annunciator Window Lights) | |||
; 08/02/2017 | |||
; Unit 0 Operations Abnormal Procedures Local Equipment Check Quarterly Surveillance | |||
; 02/09/2018 | |||
; Unit 1 Remote Shutdown Instrumentation Monthly Surveillance | |||
; 04/06/2018 | |||
; Unit 2 Remote Shutdown Instrumentation Monthly Surveillance | |||
; 04/13/2018 | |||
; Revision K | |||
; Revision AD | |||
; Revision DK | |||
; Revision Y | |||
; Revision 1 | |||
; Revision W | |||
; Revision 1 | |||
; Revision 1 | |||
; Revision F | |||
; Revision G | |||
; Revision K | |||
}} | }} |
Latest revision as of 19:52, 18 December 2019
ML18194A902 | |
Person / Time | |
---|---|
Site: | Braidwood |
Issue date: | 07/10/2018 |
From: | Robert Daley Engineering Branch 3 |
To: | Bryan Hanson Exelon Generation Co, Exelon Nuclear |
References | |
IR 2018013 | |
Download: ML18194A902 (7) | |
Text
uly 10, 2018
SUBJECT:
BRAIDWOOD NUCLEAR GENERATING STATION, UNITS 1 AND 2NRC TRIENNIAL FIRE PROTECTION INSPECTION REPORT 05000456/2018013; 05000457/2018013
Dear Mr. Hanson:
On June 8, 2018, the U.S. Nuclear Regulatory Commission (NRC) completed a Triennial Fire Protection inspection at your Braidwood Nuclear Generating Station, Units 1 and 2. The NRC inspectors discussed the results of this inspection with Mrs. A. Ferko and other members of your staff. The results of this inspection are documented in the enclosed report.
Based on the results of this inspection, NRC inspectors did not identify any findings or violations of more than minor significance.
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 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Robert C. Daley, Chief Engineering Branch 3 Division of Reactor Safety Docket Nos. 50-456; 50-457 License Nos. NPF-72; NPF-77 Enclosure:
IR 05000456/2018013; 05000457/2018013 cc: Distribution via LISTSERV
Letter to Bryan
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring licensees performance by conducting a Triennial Fire Protection at Braidwood Nuclear Generating Station 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. NRC and self-revealed findings, violations, and additional items are summarized in the table below.
Licensee-identified non-cited violations are documented under inspection results.
List of Findings and Violations No findings or violations 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 2515, Light-Water Reactor Inspection Program -
Operations Phase. The inspectors 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
===71111.05TFire Protection(Triennial)
The inspectors evaluated the following from May 7, 2018, through June 8, 2018.
Fire Protection Inspection Requirements ===
The inspectors evaluated Fire Protection Program implementation in the following selected areas:
- (1) Fire Area 11.4C-0, Radwaste and Remote Shutdown Control Panel Room
- (2) Fire Area 5.2-1, Division 11 Engineered Safety Feature Switchgear Room
- (3) Fire Area 5.2-2, Division 21 Engineered Safety Feature Switchgear Room
B.5.b Inspection Activities (2 Samples)
The inspectors evaluated feasibility of the following B.5.b Mitigating Strategies:
- (1) Makeup to Refueling Water Storage Tank
- (2) Spent Fuel Pool SprayExternal Strategy
INSPECTION RESULTS
71111.05TFire Protection(Triennial) No findings or violations were identified
EXIT MEETINGS AND DEBRIEFS
The inspectors confirmed that proprietary information was controlled to protect from public disclosure. No proprietary information was documented in this report.
- On June 8, 2018 the inspectors presented the Triennial Fire Protection inspection results to Mrs. A. Ferko and other members of the licensee staff.
DOCUMENTS REVIEWED
- BRW-97-0339-M; Braidwood Control Room Heat Up Evaluation; Revision 3
- BRW-11-0119E; Multiple Spurious Operation Technical Evaluation; Revision 1
- IR 04140755; 2018 NRC FP Triennial InspectionFPR References Update; 05/24/2018
- IR 00235431; Consider Testing of Remote Shutdown Panel Switches; 07/12/2004
- IR 00241151; Need ECR for Reset Point for 1/2PSL-IA009; 08/03/2004
- IR 02597947; NOS ID: Implementation of Testing for RSP Components; 12/09/2015
- IR 04038523; Box 8 On 2PMO5J Will Not Test; 08/02/2017
- AR 02499179; The Installed Relay has the Wrong Coil Voltage Rating; 05/11/2015
- AR 02512046; FP Zone 2D-36 Locked in Alarm; 06/09/2015
- AR 02548227; Recurrence of Spurious Alarm in Zone 1D-67; 08/29/2015
- 0BwOA PRI-5; Control Room Inaccessibility Unit 0; Revision 101
- 0BwOS PL-R2; Remote Shutdown Panel Control Switch Functional Check (PW Pumps);
Revision 0
- 1BwOA PRI-5; Control Room Inaccessibility Unit 1; Revision 109
- 1BwOS PL-R2-AB; Remote Shutdown Panel Control Switch Functional Check (AB XFER
Pump); Revision 0
- 1BwOS PL-R2-CC; Remote Shutdown Panel Control Switch Functional Check (CC Pumps);
Revision 0
- 1BwOS PL-R2-CV.1; Remote Shutdown Panel Control Switch Functional Check (CV Pumps);
Revision 1
- 1BwOS PL-R2-MS.2; Remote Shutdown Panel Control Switch Functional Check (PORVs);
Revision 0
- 1BwOS PL-R2-RY; Remote Shutdown Panel Control Switch Functional Check (RY Heaters);
Revision 0
- 1BwOS PL-R2-SX; Remote Shutdown Panel Control Switch Functional Check (SX Pumps);
Revision 0
- 1BwOSR 5.5.8.AF-2A; Unit One Train A Auxiliary Feedwater Valves Indication Test
Surveillance; Revision 17
- 2BwOA PRI-5; Control Room Inaccessibility Unit 2; Revision 106
- 2BwOS PL-R2-AB; Remote Shutdown Panel Control Switch Functional Check (AB XFER
Pump); Revision 0
- 2BwOS PL-R2-CC; Remote Shutdown Panel Control Switch Functional Check (CC Pumps);
Revision 0
- 2BwOS PL-R2-CV.1; Remote Shutdown Panel Control Switch Functional Check (CV Pumps);
Revision 0
- 2BwOS PL-R2-MS.2; Remote Shutdown Panel Control Switch Functional Check (PORVs);
Revision 0
- 2BwOS PL-R2-RY; Remote Shutdown Panel Control Switch Functional Check (RY Heaters);
Revision 0
- 2BwOS PL-R2-SX; Remote Shutdown Panel Control Switch Functional Check (SX Pumps);
Revision 0
- 2BwOSR 5.5.8.AF-2B; Unit Two Train B Auxiliary Feedwater Valves Indication Test
Surveillance; Revision 17
- BwOP VC-1; Shutdown of Control Room HVAC System; Revision 11
- BwOP VC-2; Startup of Control Room HVAC System; Revision 14
- BwOP VP-5; Reactor Containment Fan Cooler Start-Up; Revision 58
- BwOP VP-6; Reactor Containment Fan Cooler Shutdown; Revision 57
- BwAR 0-37-A4; Alarm No: 0-37-A4; Revision 16
- EDMG 4; External Spent Fuel Pool Spray Strategy; Revision 3
- EDMG 1; Extensive Damage Mitigation Guideline; Revision 8
- 00455864 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure
Switch; 08/23/2004
- 01044558 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure
Switch; 01/09/2009
- 01504332 01; Unit 1 1PSL-IA009 Remote Shutdown Control Panel IA Header Pressure
Switch; 08/06/2014
- 01741169 01; Unit 2 Remote Shutdown Panel Control Power Check; 10/21/2015
- 01824974 01; Unit 1 Remote Shutdown Panel Control Power Check; 10/24/2016
- 01872317 01; Unit 2 Remote Shutdown Panel Control Power Check; 05/18/2017
- 04680419; Unit 2 Remote Shutdown Panel Control Power Check (PMID/RQ 54750-01; Partial
Performance To Verify Box 8 Annunciator Window Lights); 08/02/2017
- 04711799 01; Unit 0 Operations Abnormal Procedures Local Equipment Check Quarterly
Surveillance; 02/09/2018
- 04756762 01; Unit 1 Remote Shutdown Instrumentation Monthly Surveillance; 04/06/2018
- 04756766 01; Unit 2 Remote Shutdown Instrumentation Monthly Surveillance; 04/13/2018
- 20E-0-3672; Cable Pans Routing Aux Building; Revision K
- 20E-0-3361 CT1; Conduit Tabulation Aux Building; Revision AD
- 20E-0-3361; Electrical Installation Aux. Building; Revision DK
- 20E-1-4111D; External Wiring Diagram, Process I & C Rack Channel 4; Revision Y
- 20E-1-4108E; Internal/External Wiring Diagram, Safety Valve Room; Revision 1
- 20E-1-4086; Elevation, Remote Shutdown Panel; Revision W
- 20E-1-4006A; Key Diagram, 4160V ESF SWGR Bus 141; Revision 1
- 20E-1-4610A; Elevation, 4160V SWGR Bus 141; Revision 1
- 20E-1-4007A; Key Diagram, 480V ESF Substation Bus 131X; Revision M
- 20E-2-4006A; Key Diagram, 4160V ESF SWGR Bus 241; Revision F
- 20E-2-4610A; Elevation, 4160V SWGR Bus 241; Revision G
- 20E-2-4007A; Key Diagram 480V ESF Substation Bus 231X; Revision K
5