Text

Seismic Walkdown Information Request for Information Pursuant to Title 10 of Code of Federal Regulations Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from Fukushima Dai-ichi Accident 3/12/12
	ML12347A252
Person / Time
Site:	Oconee
Issue date:	11/27/2012
From:	Gillespie T; Duke Energy Carolinas
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML12347A252 (127)
	v • d • e

D key T. PRESTON GILLESPIE, Jr.

Vice President Oconee Nuclear Station Duke Energy ON01 VP / 7800 Rochester Hwy.

Seneca, SC 29672 864-873-4478 864-873-4208 fax T. Gillespie@duke-energy. com November 27, 2012 10 CFR 50.54(0 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

Oconee Nuclear Station (ONS), Units 1, 2 and 3 Docket Nos. 50-269, 50-270, and 50-287 Seismic Walkdown Information Requested by NRC Letter, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(0 Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident; dated March 12, 2012

Reference:

1. NRC Letter, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, dated March 12, 2012

2. EPRI 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic, Final, dated June 2012 On March 12, 2012, the NRC staff issued a Request for Information in accordance with 10 CFR 50.54 (Reference 1). Enclosure 3 of Reference 1 contains specific requests associated with Recommendation 2.3 for Seismic Walkdowns, which required a written response to be submitted within 120 days.

Duke Energy submitted its response on July 9, 2012, which in part, confirmed that Duke Energy would use the NRC endorsed industry guideline, EPRI 1025286 (Reference 2), as the basis for performing Seismic walkdowns at the Oconee Nuclear Station (ONS). Based on the date EPRI 1025286 was endorsed, May 31, 2012, and the schedule presented in Reference 1, the report associated with the seismic walkdowns at ONS is to be submitted to the NRC by November 27, 2012.

Enclosures 1, 2, and 3 contain the seismic walkdown reports for ONS Units 1, 2, and 3 respectively, and address the information request from Reference 1, as outlined in Section 8 of EPRI 1025286. Each of these enclosures includes an Attachment 5 which contains information that is Security-Sensitive. These attachments are requested to be withheld from public disclosure in accordance with 10CFR 2.390(d)(1). of Enclosures 1,2 and 3 Contains Security-Sensitive Information -

1J Withhold From Public Disclosure Pursuant to 10 CFR 2.390(d)(1) 1 (Upon removal of Enclosures 1, 2 and 3, this letter is uncontrolled.

A Also upon removal of Attachment 5 from its respective www.duke-energy. com Enclosure, that Enclosure is uncontrolled)

&A United States Nuclear Regulatory Commission November 27, 2012 Page 2 Multiple components in all three units at ONS were not able to be inspected due to inaccessibility. A list of these components and a schedule for completing the walkdown of these components is provided for each unit in Section 4 of the respective unit's walkdown report (contained in Enclosure 1, 2 and 3 respectively). In accordance with EPRI Report 1025286, ONS will submit an update to each respective report (i.e. Enclosure), after a walkdown of the inaccessible components is complete. The commitment to submit updates is described in.

This submittal has been reviewed by licensee management, representing the technical staff, regulatory staff, and senior management, in accordance with Duke Energy procedures and processes.

Should you have any questions concerning this letter, or require additional information, please contact David Haile at (864) 873-4742.

I declare under penalty of perjury that the foregoing is true and correct. Executed on November 27, 2012 Sincerely, T. P. Gillespie Jr., Vice President, Oconee Nuclear Station Enclosures

1. Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

2.

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

3.

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

4. List of Voluntary Regulatory Commitments of Enclosures 1, 2 and 3 Contains Security-Sensitive Information -

Withhold From Public Disclosure Pursuant to 10 CFR 2.390(d)(1)

(Upon removal of Enclosures 1, 2 and 3, this letter is uncontrolled.

Also upon removal of Attachment 5 from its respective Enclosure, that Enclosure is uncontrolled)

&A United States Nuclear Regulatory Commission Seismic Walkdown Report November 27, 2012 Page 3 xc:

Mr. Victor M. McCree, Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, GA 30303-1257 Eric J. Leeds, Director, Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission One White Flint North, Mailstop 13-H16M 11555 Rockville Pike Rockville, MD 20852-2738 Mr. John P. Boska, Project Manager (ONS)

(By electronic mail only)

U. S. Nuclear Regulatory Commission One White Flint North, M/S O-8G9A 11555 Rockville Pike Rockville, MD 20852 NRC Senior Resident Inspector Oconee Nuclear Station

Oconee's Seismic Walkdown Information Requested by NRC's March 12, 2012, 10CFR 50.54(f) Letter November 27, 2012 Unit 1 Seismic Walkdown Report (NRC 50.54 (f) NTTF Recommendation 2.3) Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Executive Summary Electric Power Research Institute (EPRI) Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic was issued in June 2012. This Document provides guidance and procedures to perform seismic walkdowns as required by the U.S. Nuclear Regulatory Commission's (NRC's) 50.54(f) letter regarding Near-Term Task Force (NTTF) Recommendation 2.3: Seismic. The EPRI guidance covers selection of personnel; selection of a sample of structures, systems, and components (SSCs) that represent diversity of component types and assures inclusion of components from critical systems / functions; conduct of the walkdowns; evaluation of potentially adverse conditions against the plant seismic licensing basis; and reporting requirements. It also includes check lists to be used by the Seismic Walkdown Engineers (SWEs) in performing the seismic walkdowns and walk-bys. Duke Energy committed to implement resolution of Near-Term Task Force (NTTF) Recommendation 2.3: Seismic using EPRI Report 1025286 in a letter to the NRC dated 7/9/2012.

1. Seismic Licensing Basis The seismic design basis for SSCs at Oconee nuclear station are defined in Section 3.7 of the UFSAR. Due to the vintage of Oconee nuclear station, some seismic terminology is not consistent with current terminology. The Operating Basis earthquake (OBE) is also referred to as the Design Basis earthquake (DBE) and the Safe Shutdown earthquake (SSE) is also referred to as the Maximum Hypothetical Earthquake (MHE).

1.1. Response Spectra The seismic spectrum response curves for Oconee were generated by the time history technique of seismic analysis. The sample earthquake utilized is that recorded at El Centro, California, N-S, May 18, 1940. The Peak Ground Acceleration (PGA) for the Design Basis earthquake (DBE) is 0.05g. The PGA for the Maximum Hypothetical earthquake (MHE) for Class 1 Structures founded on rock is 0.1g. The PGA for the Maximum Hypothetical Earthquake (MHE) for Class 1 Structures founded on overburden is 0.15g.

1.2. Seismic Qualification 1.2.1. Seismic Qualification of Safety-Related Mechanical Equipment When the response spectra at each elevation in the building have been determined, the G-loadings imposed on a component may then be determined. These loads are evaluated by the equipment supplier and in the case of complex components such as heat exchangers, the design calculations performed by the supplier are reviewed by B&W Engineering or Duke Energy, as applicable. The supplier has the freedom to use either of two alternate analytical methods to evaluate the equipment or he may choose to test it. Components maybe tested by either shaker or impact tests or a certification of the test results are required. In a few cases, a manufacturer's certification that the equipment would withstand seismic conditions is acceptable based on tests of similar equipment, an example of this would be similar type pumps. Analytically the evaluation can be made by calculating the natural frequency of the component, entering the appropriate damping curve and determining the amplification factor from the response spectrum curve. The equipment is then evaluated using these G-Ioadings. As an alternative, the component may be evaluated without calculating the natural frequency by using the peak amplification factor from the appropriate damping curve to determine Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 2 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 the equipment loads-This latter approach is conservative. Special attention is given to foundation and nozzle loadings for equipment such as tanks, pumps, heat exchangers, demineralizers and filters. Loads imposed by connecting piping on a given component are included and in some cases, component nozzles have had to be reinforced to accommodate these loads. Components which are most likely to require special reinforcement due to seismic loads, are long, horizontal, saddle mounted tanks, vertical tanks, mounted on legs, and stacked heat exchangers. These have all been evaluated and appropriately designed for the seismic conditions. An alternate method of seismic qualification for mechanical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Procedure (GIP) for Seismic Verification of Nuclear Plant Equipment, Revision 3A, developed by the Seismic Qualification Utility Group (SQUG). This method is also commonly known as SQUG.

1.2.2.

Seismic Qualification of Safety-Related Electrical Equipment The seismic design basis for instrumentation and electrical equipment is that the electrical devices considered essential in performing Reactor Protection and Engineered Safeguards functions and in providing emergency power shall be designed to assure that they will not lose their capability to perform intended safety functions during and following the Safe Shutdown Earthquake (SSE). This basic criterion has remained unchanged since the issuance of the operating license; however, the seismic qualification techniques and documentation requirements for various plant modifications have in many instances followed the advances in the state of the art.

The seismic adequacy of all electrical cable tray supports is established by the methods and criteria established for cable tray supports in the Generic Implementation Procedure (GIP-3A) for Seismic Verification of Nuclear Plant Equipment, Rev 3A, developed by the Seismic Qualification Utility Group (SQUG).

In order to meet the seismic design objectives defined in UFSAR Section 3.10.1, the following seismic evaluation methods were employed consistent with the applicable licensing commitment.

Testing Devices may be qualified by either shaker or impact tests. A certification of the test results or copies of the test results are required. Additionally, a manufacturer's certification that a certain type of equipment would withstand the seismic conditions is acceptable based on previous testing/experience with similar equipment.

Analysis Devices may also be qualified by analytical methods. For example, one evaluation method involves calculating/determining the natural frequency of the device, entering the appropriate response spectra damping curves, and determining the corresponding amplification factor. The device is then evaluated using this "G" loading value.

Alternatively, the devices may be evaluated without calculating/determining its natural frequency by using the peak amplification factor from the appropriate response spectra damping curve to determine the "G" loading.

An alternate method of seismic qualification for electrical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 3 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Procedure -(4IP) for Seismic Verification of Nuclear Plant Equipment, Revision 3A, developed by the Seismic Qualification Utility Group (SQUG). This method is also commonly known as SQUG.

1.3. Response to generic letter 87-02 Generic Letter 87-02, "Verification of Seismic Adequacy of Mechanical and Electrical Equipment in Operating Reactors, Unresolved Safety Issue (US[) A-46," was issued because the NRC concluded that the seismic adequacy of certain equipment in operating plants must be reviewed against seismic criteria developed during the resolution of Unresolved Safety Issue (USI) A-46.

The NRC determined that it is not feasible to require older operating plants to meet new licensing requirements that were not in use when plants were licensed. Therefore, an alternative method was selected to -verify the seismic capability of equipment. This alternative method used a compilation of existing earthquake experience data supplemented by test data as the basis to verify the seismic capability of equipment. Generic Letter 87-02 allowed the seismic verification to be accomplished by utilities through a generic program, and the Seismic Qualification Utility Group (SQUG) was formed. The SQUG developed a Generic Implementation Procedure (GIP) that documents the seismic verification process, procedures, and methodologies for verifying the seismic qualification of equipment and resolving USI A-46. Supplement 1 of Generic Letter 87-02 endorsed use of the GIP for the seismic qualification process and contained revised licensee actions. Oconee performed the seismic qualification process in accordance with the NRC enforced version of the GIP. In a Safety Evaluation Report, the NRC concluded that Oconee met the purpose and intent of the seismic qualification process and that the corrective actions and modifications provide sufficient basis to close the USI A-46 review at Oconee.

The seismic verification process is considered part of the seismic licensing basis for Oconee, so the seismic qualification criteria developed by the SQUG in response to Generic Letter 87-02 must be considered during mechanical and electrical equipment modifications 1.4. Codes and Standards The following codes, standards, and specifications were used during the design, construction, testing and in-service inspection of Class 1 Structures:

ASME-1965 - Boiler and Pressure Vessel Code, Sections III, VIII, and IX

AISC - Steel Construction Manual, 6th ed Regulatory Guide 1.92, Combining Responses And Spatial Components In Seismic Response Analysis, Revision 1, February 1976 Regulatory Guide 1.29, Seismic Design Classification, Revision 3, September 1978 Supplement No. 1 To Generic Letter (GL) 87-02 That Transmits Supplemental Safety Evaluation Report NO.2 (SSER NO. 2) On SQUG Generic Implementation Procedure Revision 2, As Correction On February 14, 1992 (GIP-2), May 22, 1992 NRC Letter To SQUG Dated December 4, 1997. Supplemental Safety Evaluation Report NO. 3 (SSER NO. 3) On The Review Of Revision 3 To The Generic Implementation Procedure For Seismic Verification Of Nuclear Power Plant Equipment, Updated 5/16/97 (GIP-3)

NRC Letter To SQUG Dated 6/23/99, Review Of Seismic Qualification Utility Group's Report on the use of Generic Implementation Procedure for New and Replacement Equipment and Parts Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 4 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

2. Personnel Qualifications The personnel involved in the Oconee NTTF Recommendation 2.3 Seismic Walkdown effort met the qualification requirements of EPRI 1025286. The personnel responsibilities and qualifications are outlined in TABLE 2.1 below. (Note: PE=Professional Engineer, CLB=Current License Basis, SWEL= Seismic Walkdown Equipment List)

Table 2.1 Years of Relevant C

Personnel Degree Year of Reevn E0 0

Experience Qualifications E V -J W

Russell Childs PE, SCE°", SWE','

X(3)

X (Duke Energy)

BS/Civil Engineering 30 IPEEEO6 )

Ray Mc Coy BS/Civil Engineering 32 PESCE X

(Duke Energy)

Bob Hester (Duke Energy)

BS/Civil Engineering 36 PE,SCE X

Paul Mabry BS/Nuclear 27 SRO('), STA(5)

X (Duke Energy)

Engineering Tommy Loflin AS/Electrical 35+

SRO(4" X

(Duke Energy)

Engineering Jim Weir BS/Mechanical 31 SWE 2';,

(Duke Energy)

Engineering SFC SYS ENG Charles M.

BS/Civil Engineering 28 PE,SCE(1), SWE (2)

X(3)

Conselman (ARES)

James White (ARES)

BS/Civil Engineering 42 PE,SCE11 ), SWE (2)

X(3)

John North (ARES)

BS/Civil Engineering 28 PE,SWE' 2' X(3)

Mike Donnelly BS/Civil Engineering 4

SWE(2)

X (ARES)

Anthony razio BS/Chemical 40+

SWE(2 1 X

(Shaw)

Engineering John Spizuoco BS/Mechanical 44 PESCE(', SWE(2)

X (Shaw)

Engineering Arthur Richert BS/Mechanical 32 PE,SWE(2)

X (Shaw)

Engineering Paul BaugEman BS/Civil Engineering

>40 PE,SCEt1 ), SWE (2)

X(3)

(ARES)

George Bushnell BS/Mechanical

>40 PE,SCE"), SWE (2)

X (Shaw)

Engineering Robert L. Keiser MS/Civil Engineering

>20 PE,SCEt1 ), SWE (2)

X (Duke Energy)

NOTES:

1) Seismic Capability Engineers (SCEs) who have successfully completed EPRI Experience Based Seismic Evaluation training.

2) Seismic Walkdown Engineers (SWEs) have successfully completed EPRI 1025286 2 day walkdown training course.

3) Senior Team Member.

4) Prior Senior Reactor Operator (SRO).

5) Prior Shift Technical Advisor

6) IPEEE seismic Walkdown Coordinator and current A-46/IPEE Program Owner (SQUG)

3. Selection of SSCs The Oconee Unit 1 SWEL-1 and SWEL-2 equipment selection was performed in accordance with the EPRI guidance outlined in EPRI Technical Report #1025286. SWEL-1 represents a Contains Security-Sensitive Information - Withhold From Public Disclosure under 1 OCFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 5 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 satnrpte of items to safely shut down the reactor and maintain containment-irntg-iity. SWEL-2 represents spent fuel pool related items.

The Oconee USI A-46/IPEEE Safe Shutdown Equipment List (SSEL) was used as the basis for the Base-1 equipment list. The scope of the Seismic Walkdown Equipment List (SWEL) is limited to SSCs that are classified as Seismic Category I. This is done such that items have a defined seismic licensing basis against which to evaluate the as-installed configuration. Oconee is a USI A-46 plant. The purpose of the USI A-46 program was to verify the seismic adequacy of essential equipment in older operating plants that had not been qualified in accordance with more recent criteria. Many of the SSC's listed in the USI A-46/IPEEE Safe Shut down Equipment List (SSEL) are not category I. However, Oconee programmatically maintains the seismic capability of these components. Therefore, for the purpose of developing the SWEL all USI A-46/IPEEE components are considered to have a seismic licensing basis.

The A-46/IPEEE SSEL effectively represents the output of EPRI guidance equipment Screening criteria's #1, #2 and #3. The underlying data used to generate the Base-1 list is contained in an ACCESS database. This ACCESS database was used to generate the Base-1 Equipment List from which the SWEL-1 was selected. The equipment comprising the Base-1 equipment list is contained in Attachment 1. Their individual Safety Function is identified as shown below. Some components support more than one safety function.

A. Reactor reactivity control B. Reactor coolant pressure control C. Reactor coolant inventory control D. Decay heat removal E. Containment function The Base-1 Equipment List is comprised of 2264 components from Oconee Units 1, 2 & 3 &

components that support all 3 Units (Common). The Base-1 Equipment list is contained in.

3.1. SWEL-1 Development EPRI TN-1 025286 specifies that the SWEL-1 should be comprised of between 90-120 components and that each unit should have its own individual SWEL-1.

357 of the Base-1 components are Common components that support all 3 units. In order to account for these common components, -10% (39 items) of the base-1 common components were selected as SWEL-1 components. All of the 39 common components are considered to be part of each individual unit's SWEL-1.

The Unit 1 SWEL-1 consists of 131 components. Of these 131 components, 39 are common components which are also represented in each individual unit's SWEL-I. Attachment 2 contains the SWEL-1 components for Unit 1. The criteria for selection of equipment to be included in the SWEL are described in EPRI TN-1025286 section 3.

Screen #4 -- Sample Considerations -

Five sample selection attributes that should be represented in SWEL 1:

" A variety of types of systems

Major new and replacement equipment

" A variety of types of equipment

" A variety of environments

" Equipment enhanced due to vulnerabilities identified during the IPEEE program Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 6 of 13

Unit 1 Seismic Walkdown Report-- NRC 50.54 (f) NTTF Recommendation 2.3 In addition to the five sample considerations listed above, the equipment selected for the SWEL-1 should include considerations of the contribution to Risk for the SSC's and should also include a review by appropriate Operations personnel.

SWEL-1 Systems -

The SWEL-1 equipment list represents 26 systems associated with the 5 safety functions.

SWEL-1 Types of Equipment -

The SWEL-1 list contains representative equipment from all equipment classes with the following exceptions:

There are no equipment Class 11 (Chillers), Class 12 (Air Compressors), or Class 13 (Motor - Generators) components on the Unit 1 SWEL-1 list because they are not represented in the Base-1 list.

" There are no equipment Class 17 (Engine - Generators) components on the Unit 1 SWEL-1. The Standby Shutdown Facility (SSF) Diesel Engine (16 Cylinder)

(OSSFDEOOOA) is listed on the Base-1 list. However, it was not selected as part of the SWEL-1 due to its inherently robust nature and the very low seismic input at its location.

SWEL-1 Equipment locations -

The SWEL-1 equipment list includes equipment located in a broad variety of areas and environments. These areas comprise multiple buildings and elevations and include equipment located both inside and outside. The equipment areas provide a broad range of equipment environmental conditions, which include:

" Mild environmental conditions with limited temperature and humidity variations (e.g.

Control Room, Cable Rooms, Equipment Rooms, SSF Electrical Room, Relay House, etc.)

Moderate environmental conditions (e.g. general areas of the Auxiliary Building, East &

West Penetration Rooms, SSF Diesel Room, SSF Battery Room, Control Room Ventilation Rooms, etc.)

Moderate to harsh environmental conditions (e.g. LPI/BS/HPI Pump Rooms, LPI Cooler Room, etc.)

Harsh environmental conditions (e.g. Inside RB Containment, etc.).

Partial exposure to outdoor environmental conditions (e.g. Switchyard, Intake Structure)

Wet environments (Keowee Turbine Wheel Pit)

SWEL-1 Major New and Replacement Equipment -

In order to capture significant new and replacement equipment on the SWEL-1, a query was written which related the Base-1 equipment list to underlying data supporting Engineering Changes in the Duke Energy Nuclear Asset Suite Software (NAS). By doing this, a list EC's associated with all components on the Base-1 equipment list was generated. Editorial and minor modifications were then filtered out of the list. The following New and Replacement Equipment have been included in the Unit 1 SWEL-1.

Equip*

Eninern

_____N a___________me._

Change MOD Description I':*D Noý.:J Ch**!:!i ange*

I*

,.... *,"i*

1ASPT0117P AUX STEAM PRESSURE ECO000099571 REPLACE OBSOLETE MOORE 352 CONTROLLER TRANSMITTER (MS-126 & MS-129) 1ASSS0017 WITH A SIEMENS 353 CONTROLLER OD100219 -(REFURB)

DIGITAL CONTROL ROD 1CRDCACC1 DCRDCS CONTROL CABINET CC-1 EC0000078244 DRIVE CONTROL STE DRIVE CONTROL SYSTEM Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 7 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

,.Equip Engineering...

Name*.

MOD Description

'I.DiNo. ",

i

.:,*Ch fa~nge:*

i*

NSM ON-130S3/00/00/AL1 - (REFURB) 1 E L C A S G L C 1 S T E A M G E N L O G IC C A B IN E T E C 00 0 0 0 6 8 1 1 2 A TM F E E D W A T E R ISOL A Y ( A FIS)

AUTOMATIC FEEDWATER ISOLATION SYS (AFIS) 00501461 - UNIT 1 & 2 SFP LEVEL INTERLOCK 1ELIRPIR UNIT 1 PNEUMATIC INSTR RACK ECO000093683 SINGLE FA IURE SINGLE FAILURE 600V PPB 1B (FOR PRESSURIZER EREPLACE 70 A AND 225 A PZR HTR BREAKERS IN 1ELPLPZR1B 60VPBl FRPESRZR EC0000106356 HEATERS GROUP 1B, BANK 2)

REACTOR BUILDING WITH 80 A FUSES REPLACE AGASTAT 2432ABB WITH AGASTAT 1ELTFOCT1 XFMR CT-i EC0000100369 70AB 7032ABB 1HPIFT0007A HPI A TRAIN INJ FLOW TRANS EC0000089821 OD100076 - (REFURB) UNIT 1 INST LOOP UPGRADES AND NEW CRS OD100076 - (REFURB) UNIT 1 INST LOOP 11CCCA0001A UNIT 1 ICCM TRAIN A CABINET ECO000089821 UDES A NEW CRS UPGRADES AND NEW CRS lLPIFT0004P LPI TRAIN 1B INJ FLOW TRANS ECO000089821 OD100076 - (REFURB) UNIT 1 INST LOOP (Powered by ICCM)

UPGRADES AND NEW CRS LPI COOLER 1A FLOW XMTR OE400391 - DETERMINE REPLACEMENT FOR (1LPSW-251)

ROSEMOUNT 1151 TYPE J 1PPSCA0005 RPS C/ES C1 EC0000090482 (EC90482) (REFURB) UNIT 1 RPS REPLACEMENT MODIFICATION 1PPSCA0009 ES A2 EC000090423 OD100066 - (REFURB) UNIT 1 ESFAS REPLACEMENT MODIFICATION IPPSCA0011 ES C2 EC0000090423 OD100066 - (REFURB) UNIT 1 ESFAS REPLACEMENT MODIFICATION 1PPSCA0018

.ES STATUS EVEN EC0000090423 OD100066 - (REFURB)UNIT1ESFAS REPLACEMENT MODIFICATION OD100076 - (REFURB) UNIT 1 INST LOOP 1RCLT0004P1 PRZ LEVEL TRANSMITTIER EC0000089821 UGAE N

E R

UPGRADES AND NEW CRS OD100613 - REPLACE SSF CONTROL CONSOLE 1RCPT0226 Ul RC LOOP B PRESSURE EC0000090682 IDICATOR A RCS PTN INDICATORS AND RCS PTS 1VSAH0011 AHU-11 CONTROL ROOM A/C ECO000100110 REPLACE UNIT 1&2 CONTROL ROOM AHU 1-11 Oconee revised the modification process at the completion of the A-46/IPEEE programs to require plant modifications to evaluate impact to A-46/IPEEE components to ensure that the seismic capability of A-46/IPEEE components was not degraded.

Current site projects such as Protected Service Water (PSW) which are not operational and not currently credited within the Current Licensing Basis (CLB) of Oconee are not within the scope of the SWEL-1.

SWEL-1 Equipment Enhanced per IPEEE -

Significant IPEEE enhancements associated with the Base-1 equipment list as reported in the IPEEE submittal dated 12/15/1997 were identified. SWEL-1 SSCs were selected such that a sampling of SSCs which had been enhanced per IPEEE was included. The following SWEL-1 SSCs were enhanced due to IPEEE.

r Equip

_*Engineer.ing IDNrn N~

MOD Description 1BAGBD1UB2 CONTROL BOARD 1UB2 ONOE-12649 Relocate drawing sticks located behind 1UB2.

A 240/120V 1A REGULATOR Install additional bracing to unistrut frame 1ELBKIA OUTPUT BKR ONOE-14009 supportinglA/1B/SW, 1A/MCB, 1B/MCB, 1A/REG, 1B/REG, 1A/XFMR & 1B/XFMR Install washer plates to three North anchors of 1ELDI1ADB ISOL DIODE ASSEMBLY 1ADB ONOE-12675 1D 1ADB Weld transformer section of Load Centers 1X04 to 1ELLX1X4 600V LC 1X04 ONOE-14369 emdedag.

embedded angle. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 8 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Equip EnginMring

" Name MOD Description JD No.

Change Add shims under load center at anchors on North 1ELLX1X9 600V LC 1X09 ONOE-13461 sie side.

1ELMX1XC MCC 1XC ONOE-14370 Add back to back bolting to 1XC.

Add back to back bolting to the 3 South most bays 1ELMXIXGB MCC 1XGB ONOE-14360 of1B of lXGB 1ELMX1XL MCC 1XL ONOE-14378 Add rigid support to cable tray above 1XL & 1XN in E-W direction.

1ELPLIDCA 125V DC 1DCA ONOE-12778 Replace back right anchor for 1DCA 1ELPLPZR1B 600V PPB 1B (FOR PRESSURIZER ONOE09290 Replace missing or broken door latch on PPB 1B HEATERS GROUP 1B BANK 2) and adjacent PPB 1A & ID.

1VSAH0011 AHU-11 CONTROL ROOM A/C ONOE-15560 Install lateral seismic restraint.

SWEL-1 Risk Considerations -

EPRI TN-1 025286 requires that the development of SWEL 1 should include consideration of the importance of the contribution to risk for the SSCs.

In response to IPEEE, Oconee utilized the results of seismic margin methodology walkdowns to enhance the existing seismic PRA. These results are documented in OSC-10225 "Seismic PRAIIPEEE Backup Calculations" and summarized in the Supplemental IPEEE submittal Report. From the conclusions presented in the Supplemental IPEEE submittal Report, PRA sequences involving loss of power and SSF response make up several of the most dominate PRA cut sets. SSC's supporting Keowee, the SSF, and the 230 KV switchyard are well represented in the SWEL-1.

In addition, input was obtained from the General Office PRA group to determine a ranking of the most seismically risk significant components.

Of the 31 unscreened PRA events with a contribution to CDF of greater than 0%, 19 are represented in the combined SWEL-I's for Units 1, 2 & 3. This represents 61% of PRA risk significant components and meets then intent of EPRI TN-1 025286.

SWEL-1 Operations review -

The SWEL-1 equipment listed was submitted to Oconee Operations for review as recommended within EPRI TN-1025286. Operations concurred with the equipment listed on the SWEL-1 list. The SWEL-2 equipment list was developed within the Oconee Engineering organization by a highly experienced engineer who had previously held a Senior Reactor Operators License (SRO) and was previously an Operations Shift Technical Advisor (STA).

3.2. SWEL-2 Development The Oconee Unit 1 SWEL-2 spent fuel pool equipment list was developed in accordance with the EPRI guidance. Seismic Category I structures, piping, and containment penetrations were specifically excluded by the EPRI guidance. The four screening criteria specified were as follows:

1) Seismic Category I or USI A-46 (SQUG) licensing bases,

2) Spent Fuel Pool (SFP) equipment appropriate for an equipment walkdown process,

3) Sample considerations represent broad population of equipment with considered sample selection attributes such as:

a. represent a variety of systems, Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 9 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

b. major new/replacement equziliiient,

c. variety of equipment types,

d. variety of environments

4) Equipment which could result in rapid drain down of the SFP (includes both seismic and non-seismic components and similar factors outlined in 3) above.

The SWEL-2 equipment Base-2 (Attachment 3) was established based on screens #1 and

2 above. Equipment was selected from the Base-2 list based on screening criteria #3 above, and primarily included major equipment such as the spent fuel cooling system pumps, pump motor air handling units, and heat-exchangers.

The SWEL-2 list was further evaluated based on screening criteria #4 above, to include equipment which could result in SFP rapid drain-down, as defined by the EPRI guidance.

All three Oconee Unit's have SF Pool transfer tubes that open to the SF Pool in normal operation. The SSF RC Make-up and letdown lines penetrate into the SF Pool transfer tubes. The SSF Make-up and Letdown lines meet Seismic Category 1. There were also SF Pool discharge lines at valves SF22&50 and 3SF-22&50 that could meet the criteria for a rapid drain down due to a siphon if the SF Cooling pump discharge piping, which meets Seismic Category 1, were to fail outside the SF Pool. However, this vulnerability had previously been identified and procedure requirements prevent system alignment and thereby remove this vulnerability. For these reasons, there are no rapid draw down items on the SWEL-2.

The SWEL-2 components were selected based on their radiological accessibility. Of the 3 pumps identified in the SWEL-2 base list, 2 were included in the SWEL-2. Of the 7 Tanks identified in the SWEL-2 base list, 4 were included in the SWEL-2. This sampling is in accordance with EPRI TN-1025286.

The final SWEL-2 list is provided in Attachment 4.

4. Seismic Walkdowns and Area Walk-Bys SWEL-1 SSCs which could only be accessed during an outage will be walked down by Duke Energy personnel and reported on at a later date. These SSCs are listed below.

1 Bldg MV0A STEAM NaSFeTYE 1

AB 1MSVA0006 MAIN STEAM SAFETY RELIEF 1

AB 1MSVAOO1O MAIN STEAM SAFETY RELIEF 1

RB 1ELPLPZR1B 600V PPB 113 (FOR PRESSURIZER HEATERS GROUP 1B BANK 2) 1 RB 1FDWLT0082 SG 1A LEVEL TRANSMITTER 1

RB 1HPIPUO00S SSF RC MAKEUP PUMP 1

RB 1RBCAH0020A RBCU FAN 1A 1

RB 1RBCHXOOODAUX AUX RBCU D 1

RB 1RCLT0004P1 PRZ LEVEL TRANSMITTER 1

RB 1RCPT0166P RCS LOOP B PRESS TRANS 1

RB 1RCPT0226 Ul RC LOOP B PRESSURE 1

RB 1RCRDOOO6A Al COLD LEG RTD 1

RB 1RCVAO066 PRZ PORV 1

RB 1RCVA0159 RV VENT ISOLATION Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 10 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Duke Energy contracted with the Shaw Group / ARES Corporation team to perform the majority of the NTTF 2.3 seismic walkdowns at Oconee Nuclear Station. A summary report of the walkdowns along with the individual Seismic Walkdown Checklists and the Area Walk-By Checklists are contained in this report. The NTTF 2.3 Seismic Walkdown Report for Unit 1 is contained in Attachment 5. Items found to be inaccessible during this walkdown are addressed below.

Inaccessible SSCs -

Several Unit 1 SSC's were inaccessible due to their physical location or due to personnel safety concerns. These items are listed below.

1 TB 1ELLX1X4 600V LC 1X04 1

AB 1ELLX1X9 600V LC IX09 1

AB 1VSAH0011 AHU-11 CONTROL ROOM A/C The anchorage for one SSC was only partially visible due to some of the welds being covered by mortar spillage from an adjacent masonry wall. A station Work request has been written to clean the weld area and the welds will be evaluated at a later date. This Item and several other inaccessible items listed below are common to all 3 units but will be included in the Unit 1 update report.

0 SYD OSYDPLSYDC1 SWITCHYARD DISTRIBUTION CENTER 1 K1 KEO K1PMGDTMPU1A SPEED CONTROL MAGNETIC PICKUP 1A K2 KEO K2ELKTNO203 TERM BOX TB-203 K2 KEO K2GAHXO003 GEN AIR COOLER 3 K2 KEO K2HPOPU88HA AC GEN HP LIFT PUMP (88HA)

K2 KEO K2TSLS63SB TURB SUMP LEVEL SWITCH (2TSLS0002)

An update to this report will be submitted by July 1, 2013. The update will provide the results associated with the Outage deferred items and the inaccessible items above. Associated Area Walk bys for the listed components will be completed in conjunction with the individual SSC's.

5. Licensing Basis Evaluations A total of 17 potential adverse conditions were identified per the Seismic Walkdowns and the Area walk-by's. All of these potential issues were entered into the Corrective Action Program (CAP). All potential adverse conditions were evaluated for their compliance with the seismic licensing basis within the CAP and were found to be acceptable. Station Work Requests were written for some conditions as good practice. The potential adverse conditions and their individual Problem Investigation process (PIP) tracking numbers are listed in the NTTF 2.3 Seismic Walkdown Report for Unit 1 contained in Attachment 5.

6. IPEEE Vulnerabilities Resolution Report Oconee submitted its response to IPEEE on 12/21/1995 & 12/15/1997. In those submittals, Oconee stated that there were no underlying significant sequences (vulnerabilities) from external events. There were also no plant changes identified that would significantly reduce risk from external events.

Table 6-1 of the IPEEE Submittal dated 12/15/1997 listed 152 enhancements. The enhancements identified have been completed by either Station Work Request, Plant Modification or Analysis. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 11 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Oconee is a USI A-46 plant and performed the USI A-46 walkdowns in conjunction with the IPEEE walkdowns. In Oconee's letter to the NRC dated 9/12/2002, Oconee confirmed that outliers associated with Generic Letter 87-02 (USI A-46) have been completed. Oconee performed the USI A-46 seismic evaluations in conjunction with the IPEEE evaluations. The criteria for both programs were conservatively enveloped such that an evaluation of a given component would address all aspects of both programs. IPEEE enhancements are a subset of the overall USI A-46 outliers. Therefore, implementation of the IPEEE enhancements is confirmed by the 9/12/2002 SQUG Outlier Resolution Completion Notice.

7. Peer Review Duke Energy (Duke) contracted with the Shaw Group (Shaw) / ARES Corporation (ARES)

Team to perform the NTTF 2.3 peer review at the Oconee Nuclear Station (ONS). The Peer Review Report is contained in Attachment 6.

The Peer Review Team consisted of three individuals, all of whom have seismic engineering experience as it applies to nuclear power plants. These individuals participated in the peer review of each of the activities. The members of the Peer review team and their qualifications are listed in table 2.1 The Peer Review team concluded that the Shaw/ARES methodology conforms to the guidance in Section 6 of EPRI 1025286. The peer review covered the following:

The selection of the SSCs included on the Seismic Walkdown Equipment List (SWEL).

A sample of the checklists prepared for the seismic walkdowns and area walk-bys.

The licensing basis evaluations.

The decisions for entering the potentially adverse conditions in the Corrective Action Program (CAP) process.

The submittal report.

The peer review process for the SWEL development and the seismic walkdowns consisted of the following:

Reviewing the activity guidance in EPRI 1025286, the NEI Q&A bulletins, the NEI first-mover reports, and NRC Temporary Instruction 2515/188.

" Conducting an in-process review at the plant site, including interviews with the personnel performing the activity and reviewing in-process documentation.

Performing an in-plant surveillance (for the walkdown activity) of a seismic walkdown and an area walk-by.

Providing in-process observations and comments to the personnel performing the activities.

" Conducting a final review of a sample of the completed documentation.

The peer review process for the licensing basis evaluations and the decisions for entering potentially adverse conditions into the CAP consisted of reviewing the overall review process and a sample of the licensing basis reviews. The peer review process for the submittal report consisted of reviewing the draft submittal prepared by Oconee Design Engineering for licensing review. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 12 of 13

Unit 1 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 The conclusion of the peer review is that the ONS NTTF 2.3 seismic walkdown effort has been conducted in accordance with the guidance in EPRI 1025286. Comments made during the in-process review of the SWEL development and the walkdowns have been addressed satisfactorily. In-process comments on the final walkdown reports, the licensing basis reviews, and the submittal have also been resolved.

REFERENCES:

1) UFSAR Section 3.2.1 Seismic Classification (Rev. 21)

2) UFSAR Section 2.5.1.2 Site Geology (Rev. 21)

3) UFSAR Sections 2.5.2.10, 2.5.2.11 SSE/OBE (Rev. 21)

4)

UFSAR Section 3.7 Seismic Design (Rev. 21)

5)

EPRI Report 1025286, Dated May 2012, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force (NTTF) Recommendation 2.3 (ATTACHMENT 1).

6) Oconee NRC Response to GL 88-20, Individual Plant Examination of External Events (IPEEE)

Submittal, dated Dec. 18, 1997, W. R. McCollum Jr. to NRC.

7) 7/9/12 correspondence to NRC from Ben C. Waldrep, "Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ATTACHMENTS:

1) Oconee Unit 1 SWEL-1 Base-1 List

2) Oconee Unit 1 SWEL-1

3) Oconee Unit 1 SWEL-2 Base-2 List and Rapid Drain Down List

4) Oconee Unit 1 SWEL-2

5) Seismic Walkdown Summary Report and Checklists

6)

PEER Review Summary Report Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 13 of 13 Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

CC CD 0001 0

CC CD 0002 0

CC PU 0001 0

CC PU 0002 0

CC PU 0003 0

CC PU 0004 0

CC PU 0005 0

CC PU 0010 0

DA TK OOOA 0

DA TK 000B 0

DA TK 000C 0

DA TK OOOD 0

DJW HX OOOA 0

DJW HX 000B 0

EL BS 4160CT4 0

EL BS CCTRENCH 0

EL BS UFCT4 0

EL CA SYTC1 0

EL CA SYIC12 0

EL CA SYTC15 0

EL CA SYTC 17 0

EL CA SYTC18 0

EL CA SYTC19 0

EL CA SYTC2 0

EL CA SYTC3 0

E L CA SY-C4 0

EL CA SYTC5 0

EL CA SYTC8 0

EL PL CT4FSC 0

EL PL DCSF 0

EL PL DCSF1 0

EL PL KSF 0

EL PL KSFC 0

EL SH ASWS 0

EL SH BIT05 0

EL SH B1T09 0

EL SH BIT1O 0

EL SH B2T05 0

EL SH B2T09 0

EL SH DGSWGR 0

EL TF OCT4 0

EL TF OCT5 0

FO PU 0005 0

FO TK 0003 Description SSF HVAC CONDENSER 1 SSF HVAC CONDENSER 2 AUX SERVICE WATER PUMP SSF AUX SERVICE WATER PUMP HVAC SERVICE WTR PUMP 1 HVAC SERVICE WTR PUMP 2 SSF DIESEL WATER JACKET PUMP SSF SUBMERSIBLE PUMP DIESEL STARTING AIR TANK A DIESEL STARTING AIR TANK B DIESEL STARTING AIR TANK C DIESEL STARTING AIR TANK D SSF DJW HEAT EXCHANGER A SSF DJW HEAT EXCHANGER B 4160V STANDBY BUS FDR FROM XFMR CT4 TO BIT & B2T CONTROL CABLE TRENCH (SWYD TO OCONEE)

UNDERGROUND FEEDER (KEOWEE TO CT4)

SWYD TERMINAL CABINET 01 SWYD TERMINAL CABINET 12 SWYD TERMINAL CABINET 15 SWYD TERMINAL CABINET 17 SWYD TERMINAL CABINET 18 SWYD TERMINAL CABINET 19 SWYD TERMINAL CABINET 02 SWYD TERMINAL CABINET 03 SWYD TERMINAL CABINET 04 SWYD TERMINAL CABINET 05 SWYD TERMINAL CABINET 08 CT4 FAN SPEED CABINET 125 VDC POWER PNL BRD DCSF 125 VDC DISTRIBUTION CENTER DCSF-1 208/120VAC SSF VITAL PWR PNL (GRAY) 120V PPB KSFC AUX SERV WATER SWGR (4160V) (1TD-0)

SK1 CT4 TO STDBY BUS 1 FDR BKR SECTION SL1 CT5 STDBY BUS 1 FDR BKR SECTION AUX SERVICE WATER SWGR BKR SECTION SL2 CT5 STDBY BUS 2 FDR BKR SECTION SK2 CT4 STDBY BUS 2 FDR BKR SECTION DIESEL GENERATOR SWITCHGEAR XFMR CT-4 XFMR CT-S SSF DIESEL ENGINE FUEL OILTRANSFER PUMP SSF DIESEL OIL DAY TANK Bldg.

FLEL Safety Function SSF 817 B,C SSF 817 B,C AB 771 D

SSF 754 D

SSF 754 B,C SSF 754 B,C SSF 754 B,C SSF 796 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C TB 796 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 796 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E AB 771 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E SSF 777 A, B, C, D, E BH3 796 A, B, C, D, E YD 796 A, B, C, D, E SSF 777 B,C SSF 777 B,C Page 1 of 23 Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

FO TK 0004 0

HPS PG 0012 0

HPS PG 0013 0

HPS PG 0016 0

HPS PG 0224 0

HPS PG 0225 0

HPS PG 0226 0

HPS PU 0001 0

HPS PU 0002 0

HPS PU 0003 0

HPS VA 0140 0

HPS VA 0147 0

HPS VA 0154 0

LPS FL OOOA 0

LPS FL 000B 0

LPS FL 000C 0

LPS PS 0097 0

LPS PS 0098 0

LPS PU OOOA 0

LPS PU 0008 0

LPS PU 000C 0

LPS VA 0175 0

LPS VA 0182 0

LPS VA 0189 0

NI CA 0225 0

RC HX 000A 0

RC HX 0008 0

RC HX 000C 0

RC HX 000D 0

SSF BA DCSF 0

SSF BA DCSFS 0

SSF CA 0002 0

SSF CA 0003 0

SSF CA ICl 0

SSF CA IC2 0

SSF CA MEC 0

SSF DE OOOA 0

SSF MX XSF 0

SSF PL SSFCP 0

SSF SH OTS1 0

SYD BA SYl 0

SYD BA SY2 0

SYD BC SYl 0

SYD BC SY2 Description SSF DIESEL OIL STORAGE TANK JOCKEY PUMP DISCH. PRESS. GAGE HPSW PUMP B DISCH. PRESS. GAGE HPSW PUMP A DISCH. PRESS. GAGE HPSW PUMP A STRAINER DP GAGE HPSW PUMP B STRAINER DP GAGE JOCKEY PUMP STRAINER DP GAGE HPSW STANDBY PUMP A HPSW STANDBY PUMP B HPSW JOCKEY PUMP Seal Supply Reg. Valve Seal Supply Reg. Valve Seal Supply Reg. Valve LPSW PUMP A STRAINER LPSW PUMP B STRAINER LPSW PUMP C STRAINER A LPSW HDR PRESS #1 A LPSW HDR PRESS #2 LPSW PUMP A LPSW PUMP B LPSW PUMP C LPSW PUMP A SEAL FLOW REG LPSW PUMP B SEAL FLOW REG LPSW PUMP C SEAL FLOW REG SSF NUCLEAR INSTRUMENTATION RACK A RCW HEAT EXCHANGER B RCW HEAT EXCHANGER C RCW HEAT EXCHANGER D RCW HEAT EXCHANGER DCSF SSF NORMAL BATTERY DCSFS SSF STANDBY BATTERY PZR HEATER CAB (SSF)SSF PRESSURIZER HEATER CABINET (PHC)

SSF PRESSURIZER HEATER CABINET (PHC1)

SSF EOC SYS INTERCONN CAB IC1 SSF EOC SYS INTERCONN CAB IC2 MISC EQUIP CAB SSF DIESEL ENGINE B (16 CYL)

MCC XSF(600V)

SSF CONTROL PANEL OTS1 SSF ESSENTIAL SWGR 4160V 230KV SWYD BATTERY #SY1 230KV SWYD BATTERY #SY2 230KV SWYD BATTERY CHARGER SY1 230KV SWYD BATTERY CHARGER SY2 Bldg.

FLEL Safety Function YD 785 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B

TB 775 B

TB 775 D

SSF 777 A, B, C, D, E TB 775 D

TB 775 D

SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, E SSF 777 A, B, C, E SSF 797 A, B, C, D, E SSF 797 A, B, C, D, E 5SF 797 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 797 A, B, C, D, E SSF 777 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E Page 2 of 23 Oconee Ubit, SWEL-1, Base 1 Equipment List Unit 0

0 0

0 Sys SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD VS VS VS VS Type BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BK BK BK BK BK BS BS BS PL PL PL PL PL PL PL PL TF TF AH AH AH AH Number RB02 RBO3 RB06 RB07 RB08 RB1O RB17 RFO2 RF03 RF06 RF17 SRB06 SRB09 SRB14 SRB15 SRB17 SRF06 SRF07 SRF08 SRF09 SRF10 SRF17 PCB08 PCB09 PCB12 PCB15 PCB33 230KRED 23OKYEL TRENCH DYA DYB DYC DYE DYF DYG SYDC1 SYDC2 RBPT YBPT 0042 0044EX1 0044EX2 0044EX3 Description SWITCHYARD RELAY BOARD RB02 SWITCHYARD RELAY BOARD RB03 SWITCHYARD RELAY BOARD RB06 SWITCHYARD RELAY BOARD RB07 SWITCHYARD RELAY BOARD RB08 SWITCHYARD RELAY BOARD RB1O SWITCHYARD RELAY BOARD RB17 SWITCHYARD RELAY BOARD RF02 SWITCHYARD RELAY BOARD RFO3 SWITCHYARD RELAY BOARD RF06 SWITCHYARD RELAY BOARD RF17 SWITCHYARD RELAY BOARD SRB06 SWITCHYARD RELAY BOARD SRB09 SWITCHYARD RELAY BOARD SRB14 SWITCHYARD RELAY BOARD SRB15 SWITCHYARD RELAY BOARD SRB17 SWITCHYARD RELAY BOARD SRF06 SWITCHYARD RELAY BOARD SRF07 SWITCHYARD RELAY BOARD SRF08 SWITCHYARD RELAY BOARD SRF09 SWITCHYARD RELAY BOARD SRF1O SWITCHYARD RELAY BOARD SRF17 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08) 230KV AC POWER CIRCUIT BREAKER 09 (PCB-09) 230KV AC POWER CIRCUIT BREAKER 12 (PCB-12) 230KV AC POWER CIRCUIT BREAKER 15 (PCB-15) 230KV AC POWER CIRCUIT BREAKER 33 (PCB-33) 230KV SWITCHYARD RED BUS 230KV SWITCHYARD YELLOW BUS MISC SWYD TRENCHES DC PANELBOARD A DC PANELBOARD B DC PANELBOARD C DC PANELBOARD E DC PANELBOARD F DC PANELBOARD G SWITCHYARD DISTRIBUTION CENTER 1 SWITCHYARD DISTRIBUTION CENTER 2 RED BUS POTENTIAL TRANSFORMER (EGPS)

YELLOW BUS POTENTIAL TRANSFORMER (EGPS)

AHU 0-42 HEATING AND A/C SSF BUILDING SSF CONST VENT SUPPLY FAN & MOTOR SSF SUMMER VENT SUPPLY FAN & MOTOR SSF ON LINE VENT SUPPLY FAN & MOTOR Bldg.

SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SYD SSF SSF SSF SSF FLEL 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 770 817 817 817 817 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E B,C B,C B,C B,C Page 3 of 23 Ocorit- -Unit 1, SWEL-1, Base 1 Equipment List Unit 0

0 0

1 1

1 Sys 1

VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS VS AS BAG BAG BAG BAG ype HA AH AH AH DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA PE PE PL PS PS PS PS PS PS PS PS I-r PT BID BD BD BD Number 0044EX4 0044EX5 0044EX6 0044EX7 CDO1 CD02 CD03 IDOl IDOlE ID01W ID02 IDO2A ID03 ID03A ID04 ID04A XD01 XDO1E XDO1W XO02 XD03 XD03A XD04 XD05 XD05A XD06 SSFPE01 SSFPE02 CP01AH2 SSFPS01 SSFPS02 SSFPS03 SSFPS04 SSFPS05 SSFPS06 SSFPS07 SSFPS08 SSFCTl SSFCT2 0117P lAB1 1AB2 1AB3 1UB1 Description SSF ENGINE EX FAN & MOTOR SSF SUMMER EXHAUST FAN & MOTOR SSF ON LINE EXHAUST FAN & MOTOR SSF CONSTANT EXHAUST FAN & MOTOR SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF SUMMER VENTILATION (VS-AH-044EX2) EXHAUST FAN DAMPER SSF ON-LINE VENTILATION (VS-AH-0044EX3) EXHAUST FAN DAMPER SSF INLET DAMPER ID-1 (AH EXHAUST FAN AH0044EX4)

ACTUATOR FOR INTAKE DAMPER SSF-ID-A & B ACTUATOR FOR INTAKE DAMPER SSF-ID-C & D INLET DAMPER ID-2 (SSF AH EXH FAN AHOO44EX3)

ACTUATOR FOR INLET DAMPER SSF-ID2 (EXH FAN AH0044EX3)

SSF INLET DAMPER ID-3 (AH EXHAUST FAN AH0044EX1)

ACTUATOR FOR INLET DAMPER SSF-ID3 (EXH FAN AH0044EX1)

SSF INLET DAMPER ID-4 (AH EXHAUST FAN AH0044EX2)

ACTUATOR FOR INLET DAMPER SSF-ID4 (EXH FAN AH0044EX2)

SSF EXH DAMPER XD-1 (AH EXH. FAN AH0044EX4)

ACTUATOR FOR EXH DAMPER SSF-XD-A&B ACTUATOR FOR EXH DAMPER SSF-XD-C&D SSF PRESS OPER EXH DAMPER XD-2 (AH EXH FAN AHOO44EX7)

SSF EXH DAMPER XD-3 (AH EXH FAN AH0044EX1)

ACTUATOR FOR EXH DAMPER SSF-XD3 (EXH FAN AH0044EX1)

SSF PRESS OPER EXH DAMPER XD-4 (AH EXH. FAN AH0044EX5)

SSF EXH DAMPER XD-5 (AH EXH. FAN AH0044EX2)

ACTUATOR FOR EXH DAMPER SSF-XD5 (EXH FAN AH0044EX2)

SSF PRESS OPER EXH DAMPER XD-6 (AH EXH. FAN AH0044EX6)

SSF SUMMER VENT. SYSTEM (VH) EXHAUST FAN (SSF-XF-3)

SSF A/C SYSTEM AIR HANDLING UNIT SSF CONTROL BOARD FOR THE HVAC SYSTEM SSF CONSTANT VENTILATION SYSTEM SUPPLY FAN SSF SUMMER VENTILATION SYSTEM SUPPLY FAN SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN SSF CONSTANT VENTILATION SYSTEM EXHAUST FAN SSF SUMMER VENTILATION SYSTEM EXHAUST FAN SSF ON-LINE VENTILATION SYSTEM EXHAUST FAN SSF ENGINE VENTILATION SYSTEM EXHAUST FAN SSF A/C SYSTEM AIR FLOW PRESS SWITCH HVAC TEMPERATURE CONTROLLER (FOR SSF-AH-1)

HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

AUX STEAM PRESSURE TRANSMITTER (MS-126 & MS-129)

CONTROL BOARD lAB1 CONTROL BOARD 1AB2 CONTROL BOARD 1AB3 CONTROL BOARD 1UB1 Bldg.

SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF SSF TB AB AB AB AB FLEL 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 817 825 TBD 817 822 822 822 822 822 822 782 TBD 822 822 796 822 822 822 822 Safety Function B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C B,C A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E D

A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 4 of 23

~'-Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 1

BAG BD 1UB2 CONTROL BOARD 1UB2 AB 822 A, B, C, D, E 1

BAG BD 1VB1 CONTROL BOARD IVB1 AB 822 A, B, C, D, E 1

BAG BD 1VB2 CONTROL BOARD 1VB2 AB 822 A, B, C, D, E 1

BAG BD 1VB3 CONTROL BOARD lVB3 AB 822 A, B, C, D, E 1

BS PS 0018 RB PRESS SWITCH (ES CH 1A) (CHANNEL 7)

AB 809 E

1 BS PS 0019 RB PRESS SWITCH (ES CH 1A) (CHANNEL 8)

AB 809 E

1 BS PS 0020 RB PRESS SWITCH (ES CH 1B) (CHANNEL 7)

AB 809 E

1 BS PS 0021 RB PRESS SWITCH (ES CH 1B) (CHANNEL 8)

AB 809 E

1 BS PS 0022 RB PRESS SWITCH (ES CH 1C) (CHANNEL 7)

AB 809 E

1 BS PS 0023 RB PRESS SWITCH (ES CH 1C) (CHANNEL 8)

AB 809 E

1 BS PT 0004P RB PRESS XMTR (ES CH 1A)

AB 809 E

1 BS PT 0005P RB PRESS XMTR (ES CH 1B)

AB 809 E

1 BS PT 0006P RB PRESS XMTR (ES CH 1C)

AB 809 E

1 BS PU 0001 RBS PUMP 1A AB 758 E

1 BS PU 0002 RBS PUMP 1B AB 758 E

1 BS VA 0001 RB SPRAY HEADER 1A ISOLATION AB 809 E

1 BS VA 0002 RB SPRAY HEADER 1B ISOLATION AB 809 E

1 BS VA 0003 RBS PUMP SUCTION ISOL AB 758 E

1 BS VA 0004 RBS PUMP SUCTION ISOL AB 758 E

1 C

CD OOOA CONDENSER 1A TB 775 D

1 C

CD ODOB CONDENSER 1B TB 775 D

1 C

CD OOOC CONDENSER IC TB 775 D

1 C

DM OOOA POLISHING DEMINERALIZER 1A TB 775 D

1 C

DM 000B POLISHING DEMINERALIZER 1B TB 775 D

1 C

DM O0OC POLISHING DEMINERALIZER IC TB 775 D

1 C

DM 0DOD POLISHING DEMINERALIZER ID TB 775 D

1 C

DM OOOE POLISHING DEMINERALIZER 1E TB 775 D

1 C

HX 002A CONDENSATE COOLER 1A TB 775 D

1 C

HX 0028 CONDENSATE COOLER 1B TB 775 D

1 C

LT 001SA UST 1B LEVEL TB 838 D

1 C

LT 0036 UST 1A LEVEL TB 838 D

1 C

PS 0015 UST MAKEUP LEVEL CONTROL (PS-15)

TB 838 D

1 C

PS 0036 UST MAKEUP LEVEL CONTROL (PS-36)

TB 838 D

1 C

PS 0227 CONDENSATE BOOSTER PUMP SUCTION HEADER PRESS LOW TB 775 D

1 C

PU 0010 HOTWELL PUMP 1A TB 775 D

1 C

PU 0011 HOTWELL PUMP 1B TB 775 D

1 C

PU 0012 HOTWELL PUMP 1C TB 775 D

1 C

PU 0019 HOLDING PUMP 1A TB 775 D

1 C

PU 0020 HOLDING PUMP 1B TB 775 D

1 C

PU 0021 HOLDING PUMP IC TB 775 D

1 C

PU 0022 HOLDING PUMP 1D TB 775 D

1 C

PU 0023 HOLDING PUMP 1E TB 775 D

1 C

SV 1920 SOLENOID VLV TO HOTWELL NORMAL MAKEUP CONTROL-VALVE 1C-TB 775 D

1 C

TK 0003 SLURRY TANK TB 775 D

Page 5 of 23 Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 1

C TK OOOA 1

C TK 000B 1

C TK 000C 1

C VA 0192 1

C VA 0391 1

CC HX OOOA 1

CC FT 0225 1

CC PL 0268 1

CC PL 0287 1

CC PU 0001 1

CC PU 0002 1

CC PU 0003 1

CC PU 0004 1

CC PU 0024 1

CC VA 0268 1

CC VA 0269 1

CC VA 0287 1

CF TK O00A 1

CF TK 000B 1

CRD CA 0001 1

CRD CA CC01 1

CRD CA CC02 1

CRD CA CC1 1

CRD CA CC2 1

CRD CA CC3 1

CRD CA CC4 1

CRD CA CC5 1

CRD CA CC6 1

CRD CA SRPSCC1 1

CRD CA SRPSCC2 1

CS VA 0005 1

CS VA 0006 1

EHC CA EHC1 1

EHC CA EHC2 1

EHC CA EHC3 1

EHC CA EHTC1 1

EHC SV 1083 1

EHC SV 1084 1

EL BA 1CA 1

EL BA 1CB 1

EL BA 1PA 1

EL BA 1PB 1

EL BC 1CA 1

EL BC 1CB Description UPPER SURGE TANK 1A UPPER SURGE TANK 1B UPPER SURGE TANK DOME HOTWELL NORMAL MAKEUP CONTROL HOTWELL SUPPLY ISOL TO TDEFW COMPONENT COOLER 1A SSF ASW FLOW REMOTE STARTER ENCLOSURE FOR 1CCW-268 REMOTE STARTER ENCLOSURE FOR 1CCW-287 CCW PUMP 1A CCW PUMP 1B CCW PUMP iC CCW PUMP 1D EFWPT OIL COOLER PUMP SSF ASW PUMP DISCH ISOL CROSSOVER ISOLATION TO A SSF ISOL VALVE CORE FLOOD TANK 1A CORE FLOOD TANK 1B CRD AC REACTOR TRIP BREAKER CABINET CONTROL CABINET 1 CONTROL CABINET 2 DCRDCS CONTROL CABINET CC-1 DCRDCS CONTROL CABINET CC-2 DCRDCS CONTROL CABINET CC-3 DCRDCS CONTROL CABINET CC-4 DCRDCS CONTROL CABINET CC-5 DCRDCS CONTROL CABINET CC-6 DCRDCS CONTROL CABINET SRPS CC1 DCRDCS CONTROL CABINET SRPS CC2 QUENCH TANK DRAIN QUENCH TANK DRAIN EHC CAB 1EHC1 EHC CAB 1EHC2 EHC CAB 1EHC3 EHC TERM CAB 1EHTC1 MASTER TRIP SOLENOID VALVE A MASTER TRIP SOLENOID VALVE B CONTROL BATT 1CA CONTROL BATT 1CB PWR BATT 1PA PWR BATT 1PB CONTROL BATT CHGR 1CA CONTROL BATT CHGR 1CB Bldg.

FLEL Safety Function TB 838 D

TB 838 D

TB 775 D

AB 783 A

AB 796 D

SSF 754 D

SSF 758 D

INT 810 D,A INT 810 D,A INT 810 D,A INT 810 D,A TB 775 C

SSF 754 D

RB 777 D

SSF 754 D

RB 797 B, D RB 817 B,D AB 809 A

AB 809 A

RB 777 A, B,C AB 758 A, B,C AB 809 D

AB 809 D

TB 809 D

AB 809 A, B,C, D, E AB 809 A, B,C, D, E TB 796 A, B,C, D,E TB 796 A,B,C,D,E AB 796 A, B,C, D,E AB 796 A,B,C,D,E Page 6 of 23 Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 1

EL BC IPA 1

EL BC 1PB 1

EL BI 1DIA 1

EL BI 1DIB 1

EL BI 1DIC 1

EL BI IDID 1

EL BI 1KI 1

EL BI 1KU 1

EL BI 1KX 1

EL BK 1A 1

EL BK 1B 1

EL BS 230CT1 1

EL BS 4160CTI 1

EL BS 4160MFB1 1

EL BS 4160MFB2 1

EL CA 1AT3 1

EL CA 1AT4 1

EL CA 1ATS 1

EL CA 1AT8 1

EL CA 1AXTC2 1

EL CA 1EB1 1

EL CA 1EB2 1

EL CA 1EB3 1

EL CA 1EB4 1

EL CA 1EB5 1

EL CA 1EB6 1

EL CA 1EB7 1

EL CA 1EB8 1

EL CA lEF1 1

EL CA 1EF2 1

EL CA 1EF3 1

EL CA 1EF4 1

EL CA 1EF5 1

EL CA IEF6 1

EL CA 1EF7 1

EL CA 1EF8 1

EL CA 1MTC1 1

EL CA 1MTC2 1

EL CA 1MTC3 1

EL CA IMTC4 1

EL CA 1TTC5 1

EL CA 1TTC6 1

EL CA SGLC1 1

EL DI 1ADA Description PWR BATT CHGR IPA PWR BATT CHGR 1PB 120V STATIC INV 1DIA 120V STATIC INV 1DIB 120V STATIC INV 1DIC 120V STATIC INV 1DID STATIC INVERTER 1KI (INCLUDES STATIC XFER SW)

STATIC INVERTER 1KU (INCLUDES STATIC XFER SWITCH)

STATIC INVERTER 1KX (INCLUDES STATIC XFER SWITCH) 240/120V 1A REGULATOR OUTPUT BKR 240/120V lB REGULATOR OUTPUT BKR CT1 OVERHEAD FEEDER (SWYD PCB 18 TO CT1)

CT1 4160V STARTUP BUS UNIT 1,FROM TRANSFORMER CT1 4160V MAIN FEEDER BUS 1, 311, (BITTO lTC,ITD,1TE) 4160V MAIN FEEDER BUS 2, B21, (BIT TO 1TC,1TD,1TE)

AREA TERM CAB 1AT3 AUXILIARY BENCHBOARD lAB1 TERMINAL CABINET # 1AT4 AREA TERM CAB 1AT5 AREA TERM CAB 1AT8 AUX TERMINAL CABINET 1AXTC2 ELECTRICAL BOARD 1EB1 ELECTRICAL BOARD 1EB2 ELECTRICAL BOARD 1EB3 ELECTRICAL BOARD 1EB4 ELECTRICAL BOARD 1EBS ELECTRICAL BOARD 1EB6 ELECTRICAL BOARD 1EB7 ELECTRICAL BOARD lEBB ELECTRICAL BOARD 1EF1 ELECTRICAL BOARD 1EF2 ELECTRICAL BOARD 1EF3 ELECTRICAL BOARD 1EF4 ELECTRICAL BOARD 1EF5 ELECTRICAL BOARD IEF6 ELECTRICAL BOARD 1EF7 ELECTRICAL BOARD 1EF8 MISC TERM CAB 1MTC1 MISC TERM CAB 1MTC2 MISC TERM CAB 1MTC3 MISC TERM CAB 1MTC4 TURB TERM CAB lTTC5 TURB TERM CAB 1nTC6 STEAM GEN LOGIC CABINET ISOL DIODE ASSEMBLY 1ADA Bldg.

FLEL Safety Function TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SYD 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 796 A, B, C, D, E Page 7 of 23 Oconee Unit 1, SWEL-1, Base 1 Equiplrient List Unit Sys Type Number 1

EL DI 1ADB 1

EL DI 1ADC 1

EL DI 1ADD 1

EL DI lADE 1

EL DI 1ADF 1

EL DI 1ADG 1

EL IR MC20 1

EL IR MCD24 1

EL IR MCE16 1

EL IR MCE25 1

EL IR PIR 1

EL LX 1Xi 1

EL LX iXi1 1

EL LX 1X2 1

EL LX lX4 1

EL LX 1X5 1

EL LX 1X6 1

EL LX 1X7 1

EL LX 1X8 1

EL LX 1X9 1

EL MX IXA 1

EL MX 1XAA 1

EL MX 1XB 1

EL MX 1XC 1

EL MX IXE 1

EL MX 1XGA 1

EL MX 1XGB 1

EL MX 1XI 1

EL MX 1XJ 1

EL MX 1XL 1

EL MX 1XN 1

EL MX lXO 1

EL MX 1XP 1

EL MX 1XR 1

EL MX 1XS1 1

EL MX 1XS2 1

EL MX 1XS3 1

EL MX 1XSF 1

EL MX 1XSF1 1

EL MX 1XSFA 1

EL PL 1CPS 1

EL PL 1DCA 1

EL PL 1DCB 1

EL PL 1DIA Description

[SOL DIODE ASSEMBLY 1ADB ISOL DIODE ASSEMBLY 1ADC ISOL DIODE ASSEMBLY 1ADD ISOL DIODE ASSEMBLY lADE ISOL DIODE ASSEMBLY 1ADF ISOL DIODE ASSEMBLY 1ADG INSTRUMENT RACK 1MC-M20 INSTRUMENT RACK 1MC-D24 INSTRUMENT RACK 1MC-E16 INSTRUMENT RACK 1MC-E25 UNIT 1 PNEUMATIC INSTR RACK 600V LC lXO1 600V LC 1X10 600V LC 1X02 600V LC 1X04 600V LC IX05 600V LC IX06 600V LC 1X07 600V LC 1X08 600V LC 1X09 MCC 1XA 208V MCC 1XA-A 600V MCC 1XB MCC 1XC MCC IXE MCC 1XGA MCC 1XGB 600V MCC iXI 600V MCC 1XJ MCC 1XL MCC 1XN MCC lXO MCC 1XP 600V MCC 1XR MCC 1XS1 MCC 1XS2 MCC lXS3 MCC 1XSF(60OV)

MCC 1XSF-1 (208V)

MCC IXSF(208V)

I POWDEX PANEL 125V DC 1DCA 125V DC 1DCB 125V PPB 1DIA Bldg.

FLEL Safety Function AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 D

TB 775 D

TB 796 D

TB 775 D

AB 809 B

TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 D

TB 796 D

TB 775 D

TB 796 D

AB 809 D

AB 771 A, B, C AB 771 A, B, C AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 838 A

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SSF 817 A, B, C, D, E SSF 797 A, B, C, D, E SSF 817 A, B, C, D, E TB 775 D

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E Page 8 of 23 Oconee Unit 1, SWEL-1, Base1 Equipment List Unit Sys Type Number 1

EL PL 1DIB 1

EL PL IDIC 1

EL PL 1DID 1

EL PL 1DL2 1

EL PL 1DP 1

EL PL 1EPSLP1 1

EL PL 1EPSLP2 1

EL PL IKA 1

EL PL 1KC 1

EL PL 1KE 1

EL PL 1KESP 1

EL PL 1KG 1

EL PL 1KI 1

EL PL 1KRA 1

EL PL 1KRB 1

EL PL 1KSG 1

EL PL 1KSGO1 1

EL PL 1KSGO2 1

EL PL 1KSG03 1

EL PL 1KSG04 1

EL PL 1KU 1

EL PL 1KVIA 1

EL PL 1KVIB 1

EL PL 1KVIC 1

EL PL 1KVID 1

EL PL 1KX 1

EL PL 1L2 1

EL PL 1L21 1

EL PL 1SGFP 1

EL PL 1SGFSP 1

EL PL 1SKJ 1

EL PL 1SKK 1

EL PL 1SKL 1

EL PL 1SKM 1

EL PL 1SKN 1

EL PL 1SKP 1

EL PL 1TCPA 1

EL PL 1TDC3 1

EL PL HBP 1

EL PL MFBMRP 1

EL PL PZR1B 1

EL SH 1TC01 1

EL SH 1TC14 1

EL SH 1TDO1 Description 125V PPB IDIB 125V PPB IDIC 125V PPB 1DID 250V DC 1DL2 PPB 125/250V DC 1DP EPSL PANEL 1EPSLP1 EPSL PANEL 1EPSLP2 120V PPB 1KA 120V PPB 1KC 120V PPB 1KE KEOWEE EM START PANEL 120V PPB 1KG 120V PPB 1KI 120V PPB 1KRA 120V PPB 1KRB 208/120V POWER PANELBOARD 1KSG Remote Starter Cabinet for 1KSG-01 Remote Starter Cabinet for 1KSG-02 Remote Starter Cabinet for 1KSG-03 Remote Starter Cabinet for 1KSG-04 120V PPB 1KU 120V PPB 1KVIA 120V PPB IKVIB 120V PPB 1KVIC 120V PPB 1KVID 120V PPB 1KX 120V PPB 1L2 125V DC PPB IL21 SG FWP PANEL BIT FAN SPEED CABINET 120V PPB 1SKJ 120V PPB 1SKK 120V PPB 1SKL 240/120V PPB 1SKM 240/120V PPB 1SKN 240/120V PPB 1SKP TURB CONT PANEL 1TCPA TRANSDUCER CAB 1TDC3 UNIT 1 HEATER BLANKETING PANEL MAIN FDR BUS MONITOR RLY PANEL 600V PPB lB (FOR PRESSURIZER HEATERS GROUP 1B BANK 2) 1TC BUS 2 INCOMING FDR BKR SECTION 1TC BUS 1 INCOMING FDR BKR SECTION lTD BUS 2 INCOMING FDR BKR SECTION Bldg.

FL.EL Safety Function AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 838 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E.

TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 771 A, B, C, D, E AB 822 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E TB 822 D

AB 809 A, B, C, D, E RB 817 A, B, C, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E Page 9 of 23 Oconee Unit 1, SWEL 4Base 1 Equipment List Unit Sys Type Number 1

EL SH 1TD14 1

EL SH ITE01 1

EL SH 1TE14 1

EL SH BITO1 1

EL SH BlT02 1

EL SH BIT03 1

EL SH BlT04 1

EL SH B1T06 1

EL SH B2T08 1

EL SH B2T1O 1

EL SH B2T11 1

EL SH B2T12 1

EL SH B2T13 1

EL SX 1KIBKUP 1

EL SX IKIBYP 1

EL SX 1KUBKUP 1

EL SX 1KUBYP 1

EL SX 1KXBKUP 1

EL SX 1KXBYP 1

EL SX ABXFER 1

EL TF OCTI 1

EL TF 1A 1

EL TF lB 1

EL TF 1KC 1

EL TF iKI 1

EL TF 1KSG 1

EL TF 1KU 1

EL TF IXA 1

EL TF lXC 1

EL TF 1XGA 1

EL TF 1XGB 1

EL TF 1XL 1

EL TF 1XN 1

EL TF lXO 1

EL TF 1XP 1

EL TF 1XR 1

EL TF 1XSIA 1

EL TF 1XS2A 1

EL TF IXS3A 1

EL TF 1XSF 1

EL TN 0329 1

EL TN 0377 1

EL TN 0417 1

EL TN 0418 Description lTD BUS 1 INCOMING FDR BKR SECTION 1TE BUS 2 INCOMING FDR BKR SECTION 1TE BUS 1 INCOMING FDR BKR SECTION Ell MFB1 STARTUP FDR SECTION BIT INSTRUMENTATION SECTION Nll MFB1 NORMAL FDR BKR SECTION B HPSW PUMP BREAKER SECTION Si UNIT 1 STBY BUS 1 TO MFB1 BKR SECTION S21 STDBY BUS TO MFB2 BKR SECTION A HPSW PUMP BREAKER SECTION N21 MFB2 NORMAL FDR BKR SECTION B2T INSTRUMENTATION SECTION E21 MFB2 STARTUP FDR BKR SECTION BACKUP TRANSFER SWITCH iKI INVERTER BYPASS SWITCH 1KI BACKUP TRANSFER SWITCH 1KU INVERTER BYPASS SWITCH 1KU BACKUP TRANSFER SWITCH 1KX INVERTER BYPASS SWITCH 1KX 1A/1B REG XFER SW XFMR CT-1 XFMR 1A (600V TO 240V)

XFMR 1B (600V TO 240V)

XFMR 1KC (600:208:120V)

ISOLATION XFMR SHIELDED 1KI 600/120V PPB 1KSG TRANSFORMER ISOLATION XFMR SHIELDED lKU XFMR iXA XFMR 1XC (600V TO 208V)

XFMR 1XGA XFMR lXGB XFMR lXL (600V TO 208V)

XFMR lXN (600V TO 208V)

XFMR 1XO (600V TO 208V)

XFMR 1XP (600V TO 208V)

XFMR lXR (600V/208V)

XFMR 1XS1A (600VTO 208V)

XFMR 1XS2A (600V TO 208V)

XFMR 1XS3A (600V TO 208V)

XFMR 1XSF (600V TO 208V)

TERMINAL BOX TB-329 TERMINAL BOX TB-377 TERMINAL BOX TB-417 TERMINAL BOX TB-418 Bldg.

FLEL Safety Function TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E YD 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 771 A, B, C, D, E AB 771 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 838 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SSF 817 A, B, C, D, E AB 783 B

TB 796 D

AB 809 D

Page 10 of 23 Oconee Unitl-, WEL-1, Base 1 Equipment List Unit Sys Type Number 1

EL VR OOOA 1

EL VR 000B 1

ES CA 1ESTC1 1

ES CA 1ESTC2 1

ES CA 1ESTC2A 1

ES CA 1ESTC3 1

ESV CA 1ESV1 1

ESV PL 0001 1

ESV PT 0001 1

ESV PT 0002 1

ESV PU 0001 1

ESV PU 0002 1

ESV PU 0003 1

ESV TF 0001 1

ESV TF 0002 1

ESV TF 0003 1

ESV TK 0001 1

ESV TK 0002 1

ESV VA 0001 1

ESV VA 0002 1

ESV VA 0028 1

ESV VA 0029 1

FD FT 0129 1

FD FT 0130 1

FD FT 0153 1

FD FT 0154 1

FD LT 0066 1

FD LT 0067 1

FD LT 0080 1

FD LT 0081 1

FD LT 0082 1

FD LT 0083 1

FD PL 0368 1

FD PL 0369 1

FD PL 0372 1

FD PL 0374 1

FD PL 0382 1

FD PL 0384 1

FD PL ATWSCP 1

FD PS 0300 1

FD PS 0382 1

FD PS 0383 1

FD PS 0384 1

FD PS 0385 Description REGULATED PWR SUPP REG 1A REGULATED PWR SUPP REG 1B ESFAS ODD CH TERM CAB 1ESTC1 ESFAS EVEN CH TERM CAB 1ESTC2 ESFAS AUX RLY CAB 1ESTC2A ESFAS EVEN/ODD TERM CAB 1ESTC3 ESV PUMP CONTROLS RELAY CABINET 1ESV1 UNIT 1 ESV LOCAL CONTROL PANEL ESV Tank Pressure Transmitter ESV Tank Pressure Transmitter ESV Pump 1A ESV Pump 1B ESV Pump 1C 600/240/120V PPB 1SKM MAIN TRANSFORMER 600/240/120V PPB 1SKN MAIN TRANSFORMER 600/240/120V PPB 1SKP MAIN TRANSFORMER ESV Receiver Tank 1A ESV Receiver Tank 1B ESV Float Valve ESV Float Valve ESV Tank Min. Flow Valve ESV Tank Min. Flow Valve 1A EFW HEADER FLOW 1B EFW HEADER FLOW 1A EFW HEADER FLOW TRANSMITTER 1B EFW HEADER FLOW TRANSMITTER S/G 1A LEVEL S/G 1B LEVEL SG 1A LEVEL TRANSMITTER SG 1B LEVEL TRANSMITTER SG 1A LEVEL TRANSMITTER SG 1B LEVEL TRANSMITTER REMOTE STARTER ENCLOSURE FOR 1FDW-368 REMOTE STARTER ENCLOSURE FOR 1FDW-369 REMOTE STARTER ENCLOSURE FOR 1FDW-372 REMOTE STARTER ENCLOSURE FOR 1FDW-374 REMOTE STARTER ENCLOSURE FOR 1FDW-382 REMOTE STARTER ENCLOSURE FOR 1FDW-384 Ul ATWS CONTROL PANEL 1EFPT LOW HYDRAULIC OIL PRESS SWITCH FWPT 1A CONTROL OIL PRESS SWITCH FWPT 1A CONTROL OIL PRESS LOW FWPT 1B CONTROL OIL PRESS SWITCH FWPT 1B CONTROL OIL PRESS LOW Bldg.

FL EL Safety Function AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 796 D

ESV 797 D

YD 797 D

ESV 797 D

AB 783 D

AB 796 D

AB 783 D

RB 777 D

AB 809 D

AB 838 D

TB 775 C

TB 775 D

TB 775-D TB 775 D

Page 11 of 23 Oconee1Ifit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 1

FD PS 1011 1

FD PS 1012 1

FD PU 0003 1

FD PU 0004 1

FD PU 0005 1

FD SV 0037 1

FD SV 0038 1

FD TN 1TBATWS1 1

FD TN 1TBATWS2 1

FD TN ITBFPT 1

FD VA 0086 1

FD VA 0087 1

FD VA 0105 1

FD VA 0106 1

FD VA 0107 1

FD VA 0108 1

FD VA 0129 1

FD VA 0218 1

FD VA 0315 1

FD VA 0316 1

GEN BS IPB 1

GW VA 0012 1

GW VA 0013 1

HP VA 0003 1

HP VA 0004 1

HP VA 0005 1

HP VA 0020 1

HP VA 0021 1

HP VA 0024 1

HP VA 0025 1

HP VA 0026 1

HP VA 0027 1

HP VA 0031 1

HP VA 0071 1

HP VA 0120 1

HP VA 0355 1

HP VA 0398 1

HP VA 0409 1

HP VA 0410 1

HP VA 0426 1

HP VA 0428 1

HPI EP 0003 1

HPI EP 0031 1

HPI FT 0007A Description FWP 1A CONTROL OIL PRESSURE SWITCH FWP 1B CONTROL OIL PRESS SWITCH TDEFW PUMP MDEFW PUMP 1A MDEFW PUMP 1B STEAM GEN A SAMPLE ISOL VALVE FOR 1FDW-106 STEAM GEN B SAMPLE ISOL VALVE FOR 1FDW-108 ATSW TERM BOX 1 ATSW TERM BOX 2 FEEDWATER PUMP TURBINE TERMINAL BOX PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS SG 1A SAMPLE ISOLATION SG 1A SAMPLE ISOLATION SG 1B SAMPLE ISOLATION SG 1B SAMPLE ISOLATION PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS MDEFW PUMP 1A ISOLATION MDEFW PUMP 1B ISOLATION ISOLATED PHASE BUS 19KV QUENCH TANK VENT QUENCH TANK VENT LETDOWN ISOLATION LETDOWN ISOLATION LETDOWN ISOLATION RCP SEAL RETURN ISOLATION RCP SEAL RETURN ISOLATION BWST SUCTION ISOLATION BWST SUCTION ISOLATION HPI TRAIN 1A INJECTION HPI TRAIN 1B (EMERGENCY) INJECTION RCP SEAL INJ FLOW CONTROL SEAL RETURN LINE RELIEF RC VOLUME CONTROL HPI AUX SPRAY THROTTLE RC MAKEUP PUMP TO RCP SEALS BLOCK HPI CROSSOVER ISOLATION HPI CROSSOVER ISOLATION ALT LETDOWN PATH ISOLATION ALT LETDOWN PATH ISOLATION MAKEUP FLOW CONTROL 1HP-31 VALVE POSITIONER (1HP11-E/P)

HPI A TRAIN [NJ FLOW TRANS Bldg.

FLEL Safety Function TB 775 D

TB 775 D

TB, 775 D

TB 775 D

AB 809 D

AB 822 D

AB 809 D

TB 775 D

RB 808 D

AB 809 D

RB 808 D

AB 809 D

TB 775 D

AB 809 D

TB 796 A, B, C, D, E RB 797 A, B, C AB 809 A, B, C RB 777 B

RB 797 B

AB 809 B

RB 808 B

AB 809 B

AB 771 A,B,C AB 771 A,B,C AB 809 A,B,C AB 809 A,B,C AB 796 B

AB 771 B

AB 809 A,B,C AB 809 C

RB 777 B

AB 809 A,B,C AB 809 A,B,C RB 777 A,B RB 777 A,B AB 809 A,B,C AB 783 B

AB 758 A,B,C Page 12 of 23 O-fi e Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 1

HPI FT 0008A 1

HPI FT 0075 1

HPI FT 0101 1

HPI FT 0102 1

HPI FT 0103 1

HPI FT 0104 1

HPI FT 0157 1

HPI FT 0160 1

HPI HX OOOA 1

HPI HX 000B 1

HPI HX 001A 1

HPI HX 001B 1

HPI LT 0033P1 1

HPI LT 0033P2 1

HPI PL 0409 1

HPI PL 0410 1

HPI PS 0357 1

HPI PU 0001 1

HPI PU 0002 1

HPI PU 0003 1

HPI PU 0005 1

HPI SV 0090 1

HPI SV 0095 1

HPI TK 0001 1

HT PL EP04 1

HT PL EP05 1

HT PL KTH2 1

HT TF KTH2 1

ICC CA 0001A 1

ICC CA 0001B 1

ICS CA 0001 1

ICS CA 0002 1

ICS CA 0003 1

ICS CA 0004 1

ICS CA 0005 1

ICS CA 0006 1

ICS CA 0007 1

ICS CA 0008 1

ICS CA 0009 1

ICS CA 0010 1

ICS CA 0011 1

ICS CA 0012 1

ICS CA 0013 1

ICS CA 0014 Description HPI B TRAIN INJ FLOW TRANS RCP SEAL INJ FLOW TRANSMITTER RC PUMP SEAL INLET FLOW XMTR RC PUMP SEAL INLET FLOW XMTR RC PUMP SEAL INLET FLOW XMTR RC PUMP SEAL INLET FLOW XMTR Ul RC MAKE UP PUMP FLOW B LOOP [NJ FLOW TRANSMITTER LETDOWN COOLER 1A LETDOWN COOLER 1B RC SEAL RETURN COOLER 1A RC SEAL RETURN COOLER 1B LETDOWN STORAGE TANK LEVEL TRAIN 1 LETDOWN STORAGE TANK LEVEL TRAIN 2 REMOTE STARTER ENCLOSURE FOR 1HP-409 REMOTE STARTER ENCLOSURE FOR 1HP-410 LETDOWN FLOW TEMP HIGH INTERLOCK HPI PUMP 1A HPI PUMP 1B HPI PUMP 1C SSF RC MAKEUP PUMP CONTROLS LETDOWN ISOLATION VALVE FOR 1HP-5 RC PUMP SEAL RETURN ISOLATION VLV FOR 1HP-21 LETDOWN STORAGE TANK TRACE HEATING EMERG BKR ALARM PNL 4 TRACE HEATING EMERG BKR ALARM PNL 5 TRACE HEATING PNLBD KTH2 FDR TO 208V TRACE HEATING PNLBD KTH2 (600/208)

UNIT 1 ICCM TRAIN A CABINET UNIT 1 ICCM TRAIN B CABINET ICS CABINET 1 ICS CABINET 2 ICS CABINET 3 ICS CABINET 4 ICS CABINET 5 ICS CABINET 6 ICS CABINET 7 ICS CABINET 8 ICS CABINET 9 ICS CABINET 10 ICS CABINET 11 AUXILIARY SYSTEM CABINET #12 AUXILIARY SYSTEM CABINET #13 AUXILIARY SYSTEM CABINET #14 Bldg.

FLEL Safety Function AB 758 A,B,C AB 783 B

AB 783 B

RB 777 B

AB 809 A,B,C RB 777 B

RB 777 B

AB 771 B

AB 796 A,B,C AB 796 A,B,C AB 783 B

AB 758 A,B,C AB 758 A,B,C AB 758 A,B,C RB 777 B

AB 809 B

AB 771 B

AB 771 D

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E Page 13 of 23 SOconee Unit 1, SWEL-1, Base 1 Equipment List Unit Sys Type Number 1

ICS PL ASP 1

LP VA 0001 1

LP VA 0002 1

LP VA 0003 1

LP VA 0005 1

LP VA 0006 1

LP VA 0007 1

LP VA 0008 1

LP VA 0009 1

LP VA 0010 1

LP VA 0012 1

LP VA 0014 1

LP VA 0017 1

LP VA 0018 1

LP VA 0069 1

LP VA 0126 1

LPI FT 0004P 1

LPI FT 0005P 1

LPI HX OOOA 1

LPI HX OOOB 1

LPI PU 0001 1

LPI PU 0002 1

LPI PU 0003 1

LPI TE 0209 1

LPI TE 0210 1

LPI TK 0001 1

LPS FT 0124 1

LPS FT 0125 1

LPS FT 1000 I

LPS FT 1001 1

LPS PL 0139 1

LPS SV 0202 1

LPS SV 0203 1

LPS SV 1000 1

LPS SV 1001 1

LPS VA 0004 1

LPS VA 0005 1

LPS VA 0018 1

LPS VA 0021 1

LPS VA 0024 1

LPS VA 0139 1

LPS VA 0251 1

LPS VA 0252 1

LPS VA 0516 Description AUX SHUTDOWN PANEL LPI DROPLINE ISOL FROM RCS LPI DROPLINE ISOL FROM RCS LPI HOT LEG SUCTION LPI PUMP 1A SUCTION LPI SUCTION CROSSOVER LPI SUCTION CROSSOVER LPI PUMP 1B SUCTION LPI CROSSOVER LPI CROSSOVER LPI COOLER 1A ISOLATION LPI COOLER 1B ISOLATION LPI TRAIN 1A INJECTION ISOLATION LPI TRAIN 1B INJECTION ISOLATION LPI SWITCHOVER FLOW CONTROL VALVE LPI POST ACCIDENT SAMPLE ISOL LPI TRAIN 1B INJ FLOW TRANS (Powered by ICCM)

LPI TRAIN 1A INJ FLOW TRANS (Powered by ICCM)

LPI COOLER 1A LPI COOLER 1B 1LPI PUMP A ILPI PUMP B 1LPI PUMP C LPI COOLER 1B OUTLET TEMP (ICS Input)

LPI COOLER 1A OUTLET TEMP (ICS Input)

BWST LPI COOLER 1A FLOW XMTR (1LPSW-251)

LPI COOLER 1B FLOW XMTR (1LPSW-252)

DECAY HEAT COOLER (A) LPSW FLOW (1LPSW-251)

DECAY HEAT COOLER B FLOW XMI17ER REMOTE STARTER ENCLOSURE FOR 1LPSW-139 MOTOR DRIVEN EFDW PUMP MTR 1A COOLING WATER FLOW MOTOR DRIVEN EFDW PUMP MTR 1B COOLING WATER FLOW SOLENOID VALVE FOR 1LPSW-251 SOLENOID VALVE FOR 1LPSW-252 LPI COOLER 1A ISOLATION VALVE LPI COOLER 1B ISOLATION VALVE RBCU 1A RETURN VALVE RBCU 1B RETURN VALVE RBCU 1C RETURN VALVE Nonessential Header Isolation Valve LPI COOLER 1A CONTROL VALVE LPI COOLER 1B CONTROL VALVE EFW PUMP 1A LPSW ISOLATION VALVE Bldg.

FLEL Safety Function TB 822 A, B, C, D, E RB 797 B,D RB 797 D

AB 809 D

AB 758 D

AB 771 D

AB 809 D

AB 758 D

AB 758 A

AB 809 D

AB 771 D

AB 758 D

AB 809 D

AB 771 D

YD 796 A,B,C AB 771 D

AB 771 D

AB 771 B,D AB 771 B,D AB 796 D

TB 775 C

AB 783 D

AB 809 E

TB 775 D

AB 783 D

TB 775 C

Page 14 of 23 Oconee Unit 1, SWEL-1, Base 1 Equipment List-Unit Sys Type Number 1

LPS VA 0525 1

MS PS 0086 1

MS PS 0087 1

MS PS 0088 1

MS PS 0089 1

MS PT 0024P 1

MS PT 0025P 1

MS PT 0026P 1

MS PT 0027P 1

MS PT 1006 1

MS PT 1007 1

MS PT 1008 1

MS PT 1009 1

MS PY 0042 1

MS SV 0074 1

MS SV 0178 1

MS SV 0179 1

MS SV 0180 1

MS SV 0181 1

MS VA 0001 1

MS VA 0002 1

MS VA 0003 1

MS VA 0004 1

MS VA 0005 1

MS VA 0006 1

MS VA 0007 1

MS VA 0008 1

MS VA 0009 1

MS VA 0010 1

MS VA 0011 1

MS VA 0012 1

MS VA 0013 1

MS VA 0014 1

MS VA 0015 1

MS VA 0016 1

MS VA 0017 1

MS VA 0019 1

MS VA 0022 1

MS VA 0024 1

MS VA 0026 1

MS VA 0028 1

MS VA 0031 1

MS VA 0033 1

MS VA 0035 Description EFW PUMP 1B LPSW ISOLATION VALVE MAIN STEAM PRESS SWITCH (1MS-19)

MAIN STEAM PRESS SWITCH (1MS-22)

MAIN STEAM PRESS SWITCH (1MS-28)

MAIN STEAM PRESS SWITCH (1MS-31)

SG 1A PRESSURE SG 1A PRESSURE SG 1B PRESSURE SG 1B PRESSURE AFIS ANALOG CHANNEL 3 - IA S/G HDR PRESSURE AFIS ANALOG CHANNEL 3 - 1B S/G HDR PRESSURE AFIS ANALOG CHANNEL 4-1A S/G HDR PRESSURE AFIS ANALOG CHANNEL 4 - 1B S/G HDR PRESSURE UNIT 1 UPS (1MSSS0042 - 1MS-87)

TD EFDWP STEAM ADMISSION SOLENIOD FOR 1MS-93 TURB BYPASS CONTROL VLV A SHUTOFF TURB BYPASS CONTROL VLV B SHUTOFF TURB BYPASS CONTROL VLV C SHUTOFF TURB BYPASS CONTROL VLV D SHUTOFF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION FWPT ISOLATION Bldg.

FLEL Safety Function TB 775 C

TB 796 D

RB 825 D

TB 796 D

AB 796 D

TB 775 D

TB 796 D

AB 809 D

TB 796 D

Page 15 of 23 Oconee Unit 1, SWEL-1, Base 1 Equiprnent-List Unit Sys Type Number 1

MS VA 0036 1

MS VA 0040 1

MS VA 0043 1

MS VA 0047 1

MS VA 0076 1

MS VA 0077 1

MS VA 0078 1

MS VA 0079 1

MS VA 0080 1

MS VA 0081 1

MS VA 0093 1

MS VA 0095 1

MS VA 0102 1

MS VA 0103

.1 MS VA 0104 1

MS VA 0105 1

MS VA 0106 1

MS VA 0107 1

MS VA 0108 1

MS VA 0109 1

MS VA 0112 1

MS VA 0126 1

MS VA 0129 1

MS VA 0173 1

N TK 0003 1

N TK 0004 1

N TK 0005 1

N TK 0006 1

N TK 0007 1

PA CA 0001 1

PA LT 0090 1

PA LT 0091 1

PA P

0304 1

PPS CA 0001 1

PPS CA 0002 1

PPS CA 0003 1

PPS CA 0004 1

PPS CA 0005 1

PPS CA 0006 1

PPS CA 0007 1

PPS CA 0008 1

PPS CA 0009 1

PPS CA 0010 1

PPS CA 0011 Description FWPT ISOLATION FWPT 1A STOP VALVE (MS-40/SV12)

FWPT 1B STOP VALVE (MS-43/SV12)

MS TO CSAE MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MS TO 2ND STAGE RHTR ISOL MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MSTO 2ND STAGE RHTR ISOL TDEFW MS ISOLATION VALVE TD EFDWP GOVERNOR VALVE TURBINE STOP VALVE # 4 TURBINE STOP VALVE # 3 TURBINE STOP VALVE # 2 TURBINE STOP VALVE # 1 MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MS TO 2ND STAGE RHTR ISOL MS TO AS CONTROL VALVE MS TO AS CONTROL VALVE MS TO 2ND STAGE RHTR ISOL NITROGEN SUPPLY FOR 1FDW-315 & 1FDW-316 NITROGEN SUPPLY FOR 1FDW-315 & 1FDW-316 NITROGEN SUPPLY FOR 1MS-87 NITROGEN SUPPLY FOR 1MS-126 NITROGEN SUPPLY FOR 1MS-129 POST ACCIDENT LIQUID SAMPLING PANEL RB CONTAINMENT WATER LVL TR A RB CONTAINMENT WATER LVL TR B RB CONT WATER LVL IND TR A RPS A/ES Al RPS A/ES Al RPS B/ES B1 RPS B/ES B1 RPS C/ES C1 RPS C/ES C1 RPS D RPS D ES A2 ES B2 ES C2 Bldg.

FLEL Safety Function TB 796 D

TB 775 D

TB 796 D

TB 775 D

TB 796 D

AB 838 D

TB 796 D

AB 771 A

RB 777 A

AB 822 A

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E Page 16 of 23 Oconee Unit 1, SWEL-1, Base 1-Equi-pment List Unit Sys Type Number 1

PPS CA 0012 1

PPS CA 0013 1

PPS CA 0014 1

PPS CA 0015 1

PPS CA 0016 1

PPS CA 0017 1

PPS CA 0018 1

RBC AH 0020A 1

RBC AH 0020B 1

RBC AH 0020C 1

RBC HX O00A 1

RBC HX OOOAAUX 1

RBC HX 000B 1

RBC HX O0OBAUX 1

RBC HX O00C 1

RBC HX O0OCAUX 1

RBC HX O0ODAUX 1

RC LT 0004P1 1

RC LT 0004P3 I

RC LT 0123 1

RC LT 0124 1

RC LT 0125 1

RC LT 0126 1

RC PL iRCi 1

RC PT 0017P 1

RC PT 0021P 1

RC PT 0022P 1

RC PT 0023P 1

RC PT 0166P 1

RC PT 0225 1

RC PT 0226 1

RC PT 0244 1

RC PT 0245 1

RC RD 0005B 1

RC RD O006A 1

RC RD 0007B 1

RC RD 0008A 1

RC RD 0043A 1

RC RD 0043B 1

RC RD 0084A 1

RC RD 0084B 1

RC RD 0085A 1

RC RD 0085B 1

RC SV 0036 Description ES VOTER ODD ES VOTER ODD ES VOTER EVEN ES VOTER EVEN RPS E/MSI ES STATUS ODD ES STATUS EVEN RBCU FAN 1A RBCU FAN 1B RBCU FAN IC RB COOLING UNIT 1A AUX RBCU A RB COOLING UNIT 18 AUX RBCU B RB COOLING UNIT IC AUX RBCU C AUX RBCU D PRZ LEVEL TRANSMITTER PRZ LEVEL TRANSMITTER 1A RCS HOT LEG LVL (ICCM A) 1B RCS HOT LEG LVL (ICCM B)

RV HEAD LEVEL (ICCM A)

RV HEAD LEVEL (ICCM B) 1RC-1 SPRAY VALVE CONTROL BOX RCS LOOP A PRESS TRANS RC PRESS XMTR (ES CH A)

RC PRESS XMTR (ES CH B)

RC PRESS XMTR (ES CH C)

RCS LOOP B PRESS TRANS Ul RC LOOP A PRESSURE Ul RC LOOP B PRESSURE WR RCS PRESS TRAIN A (ICCM)

WR RCS PRESS TRAIN B (ICCM)

A2 COLD LEG RTD Al COLD LEG RTD B2 COLD LEG RTD BI COLD LEG RTD PRZ RTD PRZ RTD REACTOR OUTLET LOOP 1A A HOT LEG WIDE RANGE RTD REACTOR OUTLET LOOP 1B B HOT LEG WIDE RANGE RTD RC SAMPLE LINE ISOLATION VALVE (1RC7)

Bldg.

FLEL Safety Function AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A,B,C,D,E AB 822 A,B,C,D,E AB 822 A,B,C,D,E RB 825 E

RB 825 E

RB 817 E

RB 844 E

RB 817 E

RB 861 E

RB 817 E

RB 844 E

RB 797 B,C RB 797 B,C AB 809 B

AB 809 B

AB 796 B

RB 825 C

RB 825 B

RB 825 C

RB 825 C,D RB 819 C,D AB 809 C,D AB 809 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 808 B,C RB 808 B,C RB 844 C,D RB 844 C,D RB 844 C,D RB 844 C,D AB 809 B

Page 17 of 23 Oconee Unit 1, SWEL-1, Bes61 Equipment List Unit Sys Type Number 1

RC SV 0231 1

RC VA 0001 1

RC VA 0003 1

RC VA 0004 1

RC VA 0005 1

RC VA 0006 1

RC VA 0007 1

RC VA 0066 1

RC VA 0067 1

RC VA 0068 1

RC VA 0159 1

RC VA 0160 1

RC VA 0162 1

RC VA 0163 1

RC VA 0164 1

RC VA 0165 1

RC VA 0179 1

SC HX OOOA 1

SC HX 000B 1

SF TK 0002 1

SF VA 0082 1

SF VA 0097 1

SSF TN TBlXSFG01 1

SSW FT 1011 1

SSW FT 1012 1

SSW FT 1013 1

SSW VA 0109 1

SSW VA 0119 1

SSW VA 0129 1

SSW VA 0139 1

SSW VA 0155 1

SSW VA 0156 1

SSW VA 0157 1

SYD BK PCB17 1

SYD BK PCB18 1

SYD BK PCB21 1

TO PU 0022 1

TO TK 0002 1

TO TN TBEHIA 1

TO TN TBEH1B 1

TO VA 0059 1

TO VA 0145 1

V AE 0001 1

VS AH 0011 Description CONTROLS POST ACC. SAM. VLV(1RC-179)

PRESSURIZER SPRAY VALVE PRZ SPRAY ISOLATION PRZ PORV BLOCK VALVE PRZ STEAM SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ PORV PRZ CODE SAFETY PRZ CODE SAFETY RV VENT ISOLATION RV VENT ISOLATION POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE THROTTLE GENERATOR WATER COOLER 1A GENERATOR WATER COOLER 1B INCORE INST HANDLING TANK SPENT FUEL POOL TO RC MAKEUP PUMP BLOCK SPENT FUEL POOL TO RC MAKEUP SUPPLY ISOLATION VALVE 1XSFG01 ENCLOSURE ESV PUMP 1A SEAL WATER FLOW TRANSMITTER ESV PUMP 1B SEAL WATER FLOW TRANSMITTER ESV PUMP 1C SEAL WATER FLOW TRANSMITTER CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve ESV PUMP SEAL SUPPLY VALVE ESV PUMP SEAL SUPPLY VALVE ESV PUMP SEAL SUPPLY VALVE 230KV AC POWER CIRCUIT BREAKER 17 (PCB-17) 230KV AC POWER CIRCUIT BREAKER 18 (PCB-18) 230KV AC POWER CIRCUIT BREAKER 21 (PCB-21)

EFWPT AUX OIL PUMP EFW PUMP TURBINE OIL TANK FWPT 1A MAIN OIL TANK TERM BOX EH FWPT 1B MAIN OILTANK TERM BOX EH EFW PUMP TURBINE OIL PR VALVE 1MS-95 LUBE OIL SUPPLY SOLENOID EM STEAM AIR EJECTOR (SAE)

AHU-11 CONTROL ROOM A/C Bldg.

FLEL Safety Function AB 758 A

RB 853 C

RB 853 B,C RB 808 B

RB 808 B

AB 809 B

RB 853 B,C RB 853 B,C RB 853 B,C RB 844 A,B,C RB 844 A,B,C RB 777 A,B RB 777 A

AB 758 A

TB 775 D

RB 797 A,C,D RB 777 B

RB 777 B

SSF 777 A, B,C, D,E ESV 797 D

ESV 797 D

INT 796 D

ESV 797 D

SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 775 C

TB 775 C

TB 775 D

TB 775 C

TB 775 D

AB 838 A

Page 18 of 23 Oconee Unit 1, SW tL-, Base 1 Equipment List Unit Sys Type Number 1

VS AH 0012 1

VS AH 0026 1

VS AH 0027 1

VS AH O047EX1A 1

VS AH 0047EXIB 1

VS AH O047EXA 1

VS AH 0047EXB KO ELK BD CB05 KO ELK BD CB06 KG ELK BS OHXPHASE KG ELK BS OHYPHASE KO ELK BS OHZPHASE KO ELK PL EB5 KO ELK PL EB6 KG ELK SX CX KO ELK TF 0001 KG ELK TF CX KI AG TK 0001 K1 CO PS 063F K1 CO SV 20F1 K1 CO SV 20F2 KI CO SV 20P1 K1 CO SV 20P2 K1 ELK BA KB1 K1 ELK BC KC1 K1 ELK BD CB01 Description AHU-12 CONTROL ROOM A/C OUTSIDE AIR BOOSTER FAN 'A' (F-22)

OUTSIDE AIR BOOSTER FAN 'B' (F-23)

BIT & B2T ENCLOSURE VENT FAN A BIT & B2T ENCLOSURE VENT FAN B CT4 ENCLOSURE VENT FAN A CT4 ENCLOSURE VENT FAN B CONTROL BOARD 05 CONTROL BOARD 06 KHU OVERHEAD BUS X PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Y PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Z PHASE TO 230 KV SWITCHYARD ELEC BOARD 05 ELEC BOARD 06 KEOWEE XFMR CX DISC SW MAIN TRANSFORMER TRANSFORMER CX AIR RECEIVER TANK GEN 1 C02 RELEASE PRESS SWITCH (63F/PS2_1)

GEN 1 C02 RELEASE VALVE GEN 1 C02 RELEASE VALVE GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

BATT BANK 1 BATT CHARGER 1 (KC-1)

CONTROL BOARD 01 CONTROL BOARD 02 CONTROL BOARD 03 CONTROL BOARD 04 13.8 KV BUS FROM GEN #1 TO ACBI AND ACB3 13.8 KV BUS FROM ACB1 TO MAIN XFMR TERMINAL BOX 103 (WIRING ONLY)

TERMINAL BOX 127 LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 Ul MISC TERM CAB 1MTC1 Ul MISC TERM CAB 1MTC2 600V AC MCC lXA 125V DC DIST CENTER iDA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 Bldg.

FLEL Safety Function AB 838 A

AB 838 A

BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 675 A, B, C, D, E KEO 683 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 683 A, B, C, D, E KEO 675 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E K1 K1 KI K1 KI K1 K1 K1 K1 Ki K1 K1 K1 K1 K1 K1 Ki K1 ELK BD ELK BD ELK BD ELK BS ELK BS ELK CA ELK CA ELK CA ELK CA ELK CA ELK CA ELK CA ELK MX ELK PL ELK PL ELK PL ELK PL ELK PL CB02 CB03 CB04 GENACB13 MTFACB1 0103 0127 ILC1 1LC2 ILC3 1MTC1 1MTC2 IXA IDA 1ECI 1EC2 1EC3 1EC4 Page 19 of 23 Oconee Un'rw SWEL-1, Base 1 Equipment List Unit Sys Type Number KI ELK PL 1EC5 K1 ELK PL 1TGP1 K1 ELK PL EB1 K1 ELK PL EB2 K1 ELK PL EB3 K1 ELK PL EB4 Ki ELK PL EFBP1 K1 ELK PL GBP K1 ELK PL KA K1 ELK PL MODP K1 ELK SH lx KI ELK SX 1E K1 ELK SX lx K1 ELK TF 1E K1 ELK TF lx Ki ELK TN 0101 KI ELK TN 0102 K1 ELK TN 0109 KI ELK TN 0113 KI ELK TN 0121 K1 ELK TN 0123 K1 GA HX 0001 K1 GA HX 0002 K1 GA HX 0003 KI GA HX 0004 K1 GA HX 0005 KI GA HX 0006 K1 GBO HX 0001 K1 GBO LS 63TA K1 GBO LS 63TB K1 GBO PU 088A K1 GBO PU 088D K1 GCS CA SS1A KI GCS CA SSIB K1 GEN GN 0001 K1 GEN PC GPC1 K1 GEN PL BPC1 K1 GEN PL NEUCUB KI HPO HX 0001 K1 HPO HX 0002 K1 HPO HX 0003 K1 HPO HX 0004 K1 HPO HX 0005 KI HPO HX 0006 Description EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 1)

ELEC BOARD 01 ELEC BOARD 02 ELEC BOARD 03 ELEC BOARD 04 EMERGENCY FEEDER BREAKER NO. 1 GENERATOR BREAKER PANEL 120V AC PPB KA MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR lX Ul XFMR 1E DISC SW TRANSFORMER 1X DISCONNECT SWITCH EXCITATION TRANSFORMER 1E 600V AC SWGR 1X TRANSFORMER TERMINAL BOX 101 TERMINAL BOX 102 TERMINAL BOX 109 TERMINAL BOX 113 (WIRING ONLY)

TERMINAL BOX 121 (WIRING ONLY)

TERMINAL BOX 123 (WIRING ONLY)

GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLT0001)

TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLT0002)

AC BRNG OIL PUMP (88A)

DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SSIA GOVERNOR SPEED CONTOL CABINET SSIB KEOWEE UNIT 1 GENERATOR GEN POT CUBICLE UNIT 1 (1 PER PHASE)

BUS POT CUBICLE UNIT 1 (1 PER PHASE)

NEUTRAL CUBICLE 1 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER Bldg.

FLEL Safety Function KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 667 A, B, C, D, E KEO 675 A, B, C, D0, E KEO 675 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E Page 20 of 23 OWe-Unit 1, SWEL-1, Base 1 Equipment List Unit K1 K1 K1 K1 K1 K1 KI K1 K1 K1 K1 K1 K1 K1 KI K1 K1 K1 Ki K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 Sys HPO HPO HPO HPO HPO HPO MT MT OG OG OG PM PM PM TS TS TS TS WL AG CO CO CO CO CO ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK ELK Type HX HX LS LS PU PU PS TR TK TK TK DT DT DT LS LS PU PU VA TK PS SV SV SV Sv BA BC BD BD BD BD BS BS CA CA CA CA CA MX PL PL PL PL PL Number 0007 0008 63BLH 63BLL 88HA 88HD 0009 0001 0001 0002 0003 MPU1A MPU1B MPU1C 63SA 63SB 88SA 88SD 0011 0001 063F 20F3 20F4 20P3 20P4 KB2 KC2 CB07 CB08 CB09 CB1O GENACB24 MTFACB2 2LC1 2LC2 2LC3 2MTC1 2MTC2 2XA 2DA 2EC1 2EC2 2EC3 2EC4 Description GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER LEVEL SWITCH (1HPOLS0001)

LEVEL SWITCH (1HPOLS0002)

AC GEN HP LIFT PUMP (88HA)

DC GEN HP LIFT PUMP (88HD)

TURBINE PIT PRESS SWITCH KEOWEE UNIT 1 TURBINE GOVERNOR ACTUATOR GOVERNOR OIL SUMP TANK GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A SPEED CONTROL MAGNETIC PICKUP 1B SPEED CONTROL MAGNETIC PICKUP 1C TURB SUMP LEVEL SWITCH (1TSLSO001)

TURB SUMP LEVEL SWITCH (1TSLS0002)

AC SUMP PUMP (88SA)

DC SUMP PUMP (88SD)

GEN COOL ISOL VALVE (1WL-11)

AIR RECEIVER TANK GEN 2 C02 RELEASE PRESS SWITCH (63F/PS2_2)

GEN 2 C02 RELEASE VALVE GEN 2 C02 RELEASE VALVE GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

BATT BANK 2 BAiT CHARGER 2 (KC-2)

CONTROL BOARD 07 CONTROL BOARD 08 CONTROL BOARD 09 CONTROL BOARD 10 13.8 KV BUS FROM GEN #2 TO ACB2 AND ACB4 13.8 KV BUS FROM ACB2 TO MAIN XFMR LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 U2 MISC TERM CAB 2MTC1 U2 MISC TERM CAB 2MTC2 600V AC MCC 2XA 125V DC DIST CENTER 2DA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 Bldg.

KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO FLEL 667 667 683 683 675 675 675 702 683 683 683 667 667 667 675 675 675 675 683 683 683 683 683 702 702 675 675 688 688 688 688 702 702 688 688 688 675 675 683 675 702 702 702 702 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 21 of 23 S-Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 Sys Type ELK PL ELK PL ELK PL ELK PL ELK PL ELK PL ELK PL ELK PL ELK PL ELK PL ELK SH ELK SX ELK SX ELK TF ELK TF ELK TN ELK TN ELK TN ELK TN GA HX GA HX GA HX GA HX GA HX GA HX GBO HX GBO LS GBO LS GBO PU GBO PU GCS CA GCS CA GEN GN GEN PC GEN PL GEN PL HPO HX HPO HX HPO HX HPO HX HPO HX HPO HX HPO HX HPO HX Number 2EC5 2TGP1 EB10 EB7 EBB EB9 EFBP2 GBP KB MODP 2X 2E 2X 2E 2X 0201 0202 0203 0227 0001 0002 0003 0004 0005 0006 0001 63TA 63TB 088A 088D SS2A SS2B 0001 GPC2 BPC2 NEUCUB 0001 0002 0003 0004 0005 0006 0007 0008 Description EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 2)

ELEC BOARD 10 ELEC BOARD 07 ELEC BOARD 08 ELEC BOARD 09 EMERGENCY FEEDER BREAKER NO. 2 GENERATOR BREAKER PANEL 120V AC PPB KB MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR 2X U2 XFMR 2E DISC SW TRANSFORMER 2X DISCONNECT SWITCH EXCTIATION TRANSFORMER 2E 13.8KV/600V AC SWGR 2X TRANSFORMER TERM BOX TB-201 TERM BOX TB-202 TERM BOX TB-203 TERM BOX TB-227 GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLT0001)

TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLT0002)

AC BRNG OIL PUMP (88A)

DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SS2A GOVERNOR SPEED CONTOL CABINET SS2B KEOWEE UNIT 2 GENERATOR GEN POT CUBICLE UNIT 2 (1 PER PHASE)

BUS POT CUBICLE UNIT 2 (1 PER PHASE)

NEUTRAL CUBICLE 2 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER Bldg.

KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO FLEL 702 683 688 688 688 688 702 702 683 702 702 702 702 702 702 683 683 675 683 667 667 667 667 667 667 667 675 675 667 667 667 667 683 702 702 683 667 667 667 667 667 667 667 667 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 22 of 23 Oconee Unit 1, SWEL-1, Base 1 Equipment List Unit K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 Sys HPO HPO HPO HPO MT MT OG OG OG PM PM PM TS TS TS TS WL Type LS LS PU PU PS TR TK TK TK DT DT DT LS LS PU PU VA Number 63BLH 63BLL 88HA 88HD 0009 0001 0001 0002 0003 MPU1A MPUIB MPUIC 63SA 63SB 88SA 88SD 0011 Description LEVEL SWITCH (2HPOLS0001)

LEVEL SWITCH (2HPOLSO002)

AC GEN HP LIFT PUMP (88HA)

DC GEN HP LIFT PUMP (88HD)

TURB PIT PRESS SWITCH KEOWEE UNIT 2 TURBINE GOVERNOR ACTUATOR GOVERNOR OIL SUMP TANK GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A SPEED CONTROL MAGNETIC PICKUP 1B SPEED CONTROL MAGNETIC PICKUP 1C TURB SUMP LEVEL SWITCH (2TSLSO001)

TURB SUMP LEVEL SWITCH (2TSLS0002)

AC SUMP PUMP (88SA)

DC SUMP PUMP (88SD)

GEN COOL ISOL VALVE (2WL-11)

Bldg.

KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO KEO FLEL 683 683 675 675 675 683 683 683 683 667 667 667 675 675 675 675 683 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 23 of 23

'Oconee Unit 1, SWEL-1 Equipment List Unit Sys Type Number 0

DA TK "

OOC 0

EL CA SYTC1 0

EL SH B1T05 0

E L TF 0CT4 0

FO TK 0003 0

SSF BA DCSF 0

SSF MX XSF 0

SSF SH OTS1 0

SYD BC SY2 0

SYD BD RB02 0

SYD BD RF17 0

SYD BD SRF17 0

SYD BK PCB08 0

SYD PL DYC 0

SYD PL DYE 0

SYD PL SYDC1 0

SYD TF RBPT 0

VS AH 0042 0

VS AH 0044EX6 0

VS DA CDO1 0

VS PS SSFPS03 0

VS T"

SSFCT2 1

AS PT 0117P 1

BAG BD 1UB1 1

BAG BD 1UB2 1

BAG BD 1VB2 1

C DM OOOA 1

C PS 0227 1

C TK OOOA 1

C TK 000C 1

CC PU 0002 1

CC PU 0024 1

CRD CA CC1 1

EHC CA EHC1 1

EHC CA EHTC1 1

EL BA 1PB 1

EL BC 1PB 1

EL BI 1KX 1

EL BK 1A 1

EL CA 1AT3 1

EL CA 1EB7 1

EL CA SGLC1 1

EL DI 1ADB 1

EL IR PIR Description DIESEL STARTING AIR TANK C SWYD TERMINAL CABINET 01 SK1 CT4 TO STDBY BUS 1 FDR BKR SECTION XFMR CT-4 SSF DIESEL OIL DAY TANK DCSF SSF NORMAL BATTERY MCC XSF(600V)

OTS1 SSF ESSENTIAL SWGR 4160V 230KV SWYD BATTERY CHARGER SY2 SWITCHYARD RELAY BOARD RB02 SWITCHYARD RELAY BOARD RF17 SWITCHYARD RELAY BOARD SRF17 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08)

DC PANELBOARD C DC PANELBOARD E SWITCHYARD DISTRIBUTION CENTER 1 RED BUS POTENTIAL TRANSFORMER (EGPS)

AHU 0-42 HEATING AND A/C SSF BUILDING SSF ON LINE EXHAUST FAN & MOTOR SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

AUX STEAM PRESSURE TRANSMITTER (MS-126 & MS-129)

CONTROL BOARD 1UB1 CONTROL BOARD 1UB2 CONTROL BOARD 1VB2 POLISHING DEMINERALIZER 1A CONDENSATE BOOSTER PUMP SUCTION HEADER PRESS LOW UPPER SURGE TANK 1A UPPER SURGE TANK DOME CCW PUMP 1B EFWPT OIL COOLER PUMP DCRDCS CONTROL CABINET CC-1 EHC CAB 1EHC1 EHC TERM CAB 1EHTCl PWR BATT 1PB PWR BATT CHGR 1PB STATIC INVERTER 1KX (INCLUDES STATIC XFER SWITCH) 240/120V 1A REGULATOR OUTPUT BKR AREA TERM CAB 1AT3 ELECTRICAL BOARD 1EB7 STEAM GEN LOGIC CABINET ISOL DIODE ASSEMBLY 1ADB UNIT 1 PNEUMATIC INSTR RACK Bldg.

FLEL Safety Function SSF 777 B,C SYD 770 A, B, C, D, E BH1 796 A, B, C, D, E BH3 796 A, B, C, D, E SSF 777 B,C SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SSF 817 B,C SSF 817 B,C SSF 817 B,C SSF 822 A, B, C, D, E SSF 822 A, B, C, D, E TB 796 D

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 775 D

TB 775 D

TB 838 D

INT 810 D,A TB 775 C

AB 809 A

AB 809 D

TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 822 A, B, C, D, E AB 809 A, B, C, D, E AB 796 A, B, C, D, E AB 809 B

Page 1 of 3

Unit Sys Type Number 1

EL LX 1X4 1

EL LX 1X9 1

EL MX IXC 1

EL MX 1XGB 1

EL MX 1XI 1

EL MX 1XL 1

EL MX 1XP 1

EL MX 1XR 1

EL MX 1XS1 1

EL MX IXSF1 1

EL PL 1CPS 1

EL PL 1DCA 1

EL PL 1DCB EL PL EL PL EL PL EL PL EL PL EL SH EL TF EL TF EL TF EL TF EL VR ES CA ESV CA ESV TK FD LT FD PL ED PS ED PU ED VA HP VA HPI FT HPI PS HPI PU HPI SV ICC CA ICS PL LP VA LPI FT LPI HX LPI TE LPS FT 1DIC 1EPSLP1 1SGFSP 1SKN PZR1B 1TC01 OCT1 IXA 1XS3A 1XSF 000A 1ESTC3 1ESV1 0002 0082 0369 1011 0004 0086 0071 0007A 0357 0005 0090 0001A ASP 0006 0004P OOOA 0210 0124 Oconee Unit 1, SWEL-1 Equipment List Description 600V LC 1X04 600V LC 1X09 MCC 1XC MCC 1XGB 600V MCC lXI MCC 1XL MCC 1XP 600V MCC 1XR MCC 1XS1 MCC 1XSF-1 (208V) 1 POWDEX PANEL 125V DC 1DCA 125V DC 1DCB 125V PPB lDIC EPSL PANEL 1EPSLP1 BiT FAN SPEED CABINET 240/120V PPB 1SKN 600V PPB 1B (FOR PRESSURIZER HEATERS GROUP 1B BANK 2) 1TC BUS 2 INCOMING FDR BKR SECTION XFMR CT-1 XFMR lXA XFMR 1XS3A (600V TO 208V)

XFMR 1XSF (600V TO 208V)

REGULATED PWR SUPP REG 1A ESFAS EVEN/ODD TERM CAB 1ESTC3 ESV PUMP CONTROLS RELAY CABINET 1ESVl ESV Receiver Tank 1B SG 1A LEVEL TRANSMITTER REMOTE STARTER ENCLOSURE FOR 1FDW-369 FWP 1A CONTROL OIL PRESSURE SWITCH MDEFW PUMP 1A PRESS REG TD PUMP SEALS SEAL RETURN LINE RELIEF HPI A TRAIN INJ FLOW TRANS LETDOWN FLOW TEMP HIGH INTERLOCK SSF RC MAKEUP PUMP CONTROLS LETDOWN ISOLATION VALVE FOR 1HP-5 UNIT 1 ICCM TRAIN A CABINET AUX SHUTDOWN PANEL LPI SUCTION CROSSOVER LPI TRAIN 1B INJ FLOW TRANS (Powered by ICCM)

LPI COOLER 1A LPI COOLER 1A OUTLET TEMP (ICS Input)

LPI COOLER 1A FLOW XMTR (1LPSW-251)

Bldg.

FLEL Safety Function TB 796 A, B,C, D,E AB 796 A, B,C, D, E TB 775 D

TB 796 D

AB 809 D

AB 771 A,B,C AB 796 A, B,C, D,E AB 838 A

AB 796 A, B,C, D,E SSF 797 A, B, C, D, E TB 775 D

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E ESV 797 A,B,C, D,E RB 817 A, B, C, E TB 796 A, B, C, D, E YD 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B,C, D,E SSF 817 A, B, C, D, E AB 796 A,B,C,D,E AB 809 A, B,C, D,E AB 796 D

ESV 797 D

RB 777 D

AB 809 D

TB 775 D

AB 771 B

AB 758 A,B,C AB 783 B

RB 777 B

AB 809 B

AB 822 A, B,C, D,E TB 822 A, B,C, D,E AB 758 D

AB 809 D

AB 771 D

Page 2 of 3 Oconee Unit 1, SWEL-1 Equipment List Unit Sys Type Number 1

LPS SV 1001 1

MS PS 0086 1

MS VA 0006 1

MS VA 0010 1

MS VA 0080 1

MS VA 0129 1,

N TK 0003 1

PPS CA 0005 1

PPS CA 0009 1

PPS CA 0011 1

PPS CA 0018 1

RBC AH 0020A 1

RBC HX 0OODAUX 1

RC LT 0004P1 1

RC PT 0166P 1

RC PT 0226 1

RC RD 0006A 1

RC SV 0231 1

RC VA 0066 1

RC VA 0159 1

RC VA 0179 1

SSF TN TBlXSFG01 1

SSW FT 1013 1

TO TK 0002 1

TO TN TBEHIB 1

VS AH 0011 KO ELK TF 0001 K1 CO SV 20P2 KI ELK BA KB1 K1 ELK BD CB01 KI ELK CA 1MTC1 K1 ELK MX IXA K1 ELK TN 0109 KI OG TK 0003 K1 PM DT MPUIA KI WL VA 0011 K2 ELK BC KC2 K2 ELK CA 2MTC1 K2 ELK PL 2DA K2 ELK TN 0203 K2 GA HX 0003 K2 HPO PU 88HA K2 TS LS 63SB Description SOLENOID VALVE FOR 1LPSW-252 MAIN STEAM PRESS SWITCH (1MS-19)

MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MS TO 2ND STAGE RHTR ISOL MS TO AS CONTROL VALVE NITROGEN SUPPLY FOR 1FDW-315 & 1FDW-316 RPS C/ES C1 ES A2 ES C2 ES STATUS EVEN RBCU FAN 1A AUX RBCU D PRZ LEVEL TRANSMITTER RCS LOOP B PRESS TRANS Ul RC LOOP B PRESSURE Al COLD LEG RTD CONTROLS POST ACC. SAM. VLV(1RC-179)

PRZ PORV RV VENT ISOLATION POST ACC SAMPLE THROTTLE 1XSFG01 ENCLOSURE ESV PUMP IC SEAL WATER FLOW TRANSMITTER EFW PUMP TURBINE OIL TANK FWPT 1B MAIN OILTANK TERM BOX EH AHU-11 CONTROL ROOM A/C MAIN TRANSFORMER GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

BATT BANK 1 CONTROL BOARD 01 Ul MISC TERM CAB 1MTC1 600V AC MCC 1XA TERMINAL BOX 109 GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A GEN COOL ISOL VALVE (1WL-11)

BATT CHARGER 2 (KC-2)

U2 MISC TERM CAB 2MTC1 125V DC DIST CENTER 2DA TERM BOX TB-203 GEN AIR COOLER 3 AC GEN HP LIFT PUMP (88HA)

TURB SUMP LEVEL SWITCH (2TSLS0002)

Bldg.

FLEL Safety Function AB 783 D

TB 796 D

AB 809 D

TB 796 D

AB 838 D

AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 822 A, B, C, D, E AB 822 A, B, C, D, E RB 825 E

RB 844 E

RB 797 B,C RB 825 C

RB 819 C,D RB 797 C,D AB 758 A

RB 853 B,C RB 844 A,B,C AB 758 A

SSF 777 A, B, C, D, E ESV 797 D

TB 775 C

TB 775 D

AB 838 A

KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 675 A, B, C, D, E KEO 688 A, B, C, D, E KEO 675 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 667 A, B, C, D, E KEO 683 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 667 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D,E Page 3 of 3 Oconee Unit 1, SWEL-2, Base-2 and Rapid Drawdown List Safety EO. ID Description Svs EQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool OSFPU0001 A SF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0002 B SF Pump SF Pump Building T-73 783' 9" 218 Cooling BWST Recirculation 06/Vertical Aux.

SF Pool OSFPU0004 Pump SF Pump Building T-74 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0006 C SF Pump SF Pump Building T-73 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOA A SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOB B SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOC C SF Cooler SF Exchanger Building T-73 783' 9" 218 Cooling 21/Tanks Heat Aux SF Pool OSFFLOOOA A SF Filter SF Exchanger Building 783' 219 Cooling 21/Tanks Heat Aux SF Pool OSFFLOOOB B SF Filter SF Exchanger Building 783' 219 Cooling 21/Tanks Heat Aux SF Pool OSFDMOO01 SF Demin SF Exchanger Building 783' 219 Cooling Page 1 of 1 Oconee Unit 1, SWEL-2 List Safety EQ. ID Descridtion Svs EQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool OSFPU0001 A SF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0002 B SF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0006 C SF Pump SF Pump Building T-73 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOA A SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOB B SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool 0SFHX000C C SF Cooler SF Exchanger Building T-73 783' 9" 218 Cooling Page 1 of 1

Oconee's Seismic Walkdown Information Requested by NRC's March 12, 2012, 10CFR 50.54(f) Letter November 27, 2012 Unit 2 Seismic Walkdown Report (NRC 50.54 (f) NTTF Recommendation 2.3) Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Executive Summary Electric Power Research Institute (EPRI) Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force Recommendation 2.3: Seismic was issued in June 2012. This Document provides guidance and procedures to perform seismic walkdowns as required by the U.S. Nuclear Regulatory Commission's (NRC's) 50.54(f) letter regarding Near-Term Task Force (NTTF) Recommendation 2.3: Seismic. The EPRI guidance covers selection of personnel; selection of a sample of structures, systems, and components (SSCs) that represent diversity of component types and assures inclusion of components from critical systems / functions; conduct of the walkdowns; evaluation of potentially adverse conditions against the plant seismic licensing basis; and reporting requirements. It also includes check lists to be used by the Seismic Walkdown Engineers (SWEs) in performing the seismic walkdowns and walk-bys. Duke Energy committed to implement resolution of Near-Term Task Force (NTTF) Recommendation 2.3: Seismic using EPRI Report 1025286 in a letter to the NRC dated 7/9/2012.

1. Seismic Licensing Basis The seismic design basis for SSCs at Oconee nuclear station are defined in Section 3.7 of the UFSAR. Due to the vintage of Oconee nuclear station, some seismic terminology is not consistent with current terminology. The Operating Basis earthquake (OBE) is also referred to as the Design Basis earthquake (DBE) and the Safe Shutdown earthquake (SSE) is also referred to as the Maximum Hypothetical Earthquake (MHE).

1.1. Response Spectra The seismic spectrum response curves for Oconee were generated by the time history technique of seismic analysis. The sample earthquake utilized is that recorded at El Centro, California, N-S, May18, 1940. The Peak Ground Acceleration (PGA) for the Design Basis earthquake (DBE) is 0.05g. The PGA for the Maximum Hypothetical earthquake (MHE) for Class 1 Structures founded on rock is 0.1g. The PGA for the Maximum Hypothetical Earthquake (MHE) for Class 1 Structures founded on overburden is 0.15g.

1.2. Seismic Qualification 1.2.1. Seismic Qualification of Safety-Related Mechanical Equipment When the response spectra at each elevation in the building have been determined, the G-loadings imposed on a component may then be determined. These loads are evaluated by the equipment supplier and in the case of complex components such as heat exchangers, the design calculations performed by the supplier are reviewed by B&W Engineering or Duke Energy, as applicable. The supplier has the freedom to use either of two alternate analytical methods to evaluate the equipment or he may choose to test it. Components maybe tested by either shaker or impact tests or a certification of the test results are required. In a few cases, a manufacturer's certification that the equipment would withstand seismic conditions is acceptable based on tests of similar equipment, an example of this would be similar type pumps. Analytically the evaluation can be made by calculating the natural frequency of the component, entering the appropriate damping curve and determining the amplification factor from the response spectrum curve. The equipment is then evaluated using these G-loadings. As an alternative, the component may be evaluated without calculating the natural frequency by using the peak amplification factor from the appropriate damping curve to determine the equipment loads. This latter approach is conservative. Special attention is given to Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 2 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 foundation and nozzle loadings for equipment such as tanks, pumps, heatexchangers, demineralizers and filters. Loads imposed by connecting piping on a given component are included and in some cases, component nozzles have had to be reinforced to accommodate these loads. Components which are most likely to require special reinforcement due to seismic loads, are long, horizontal, saddle mounted tanks, vertical tanks mounted on legs, and stacked heat exchangers. These have all been evaluated and appropriately designed for the seismic conditions. An alternate method of seismic qualification for mechanical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Procedure (GIP) for Seismic Verification of Nuclear Plant Equipment, Revision 3A, developed by the Seismic Qualification Utility Group (SQUG). This method is also commonly known as SQUG.

1.2.2.

Seismic Qualification of Safety-Related Electrical Equipment The seismic design basis for instrumentation and electrical equipment is that the electrical devices considered essential in performing Reactor Protection and Engineered Safeguards functions and in providing emergency power shall be designed to assure that they will not lose their capability to perform intended safety functions during and following the Safe Shutdown Earthquake (SSE). This basic criteria has remained unchanged since the issuance of the operating license; however, the seismic qualification techniques and documentation requirements for various plant modifications have in many instances followed the advances in the state of the art.

The seismic adequacy of all electrical cable tray supports is established by the methods and criteria established for cable tray supports in the Generic Implementation Procedure (GIP-3A) for Seismic Verification of Nuclear Plant Equipment, Rev 3A, developed by the Seismic Qualification Utility Group (SQUG).

In order to meet the seismic design objectives defined in UFSAR Section 3.10.1, the following seismic evaluation methods were employed consistent with the applicable licensing commitment.

Testing Devices may be qualified by either shaker or impact tests. A certification of the test results or copies of the test results are required. Additionally, a manufacturer's certification that a certain type of equipment would withstand the seismic conditions is acceptable based on previous testing/experience with similar equipment.

Analysis Devices may also be qualified by analytical methods. For example, one evaluation method involves calculating/determining the natural frequency of the device, entering the appropriate response spectra damping curves, and determining the corresponding amplification factor. The device is then evaluated using this "G" loading value.

Alternatively, the devices may be evaluated without calculating/determining its natural frequency by using the peak amplification factor from the appropriate response spectra damping curve to determine the "G" loading.

An alternate method of seismic qualification for electrical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Procedure (GIP) for Seismic Verification of Nuclear Plant Equipment, Revision 3A, Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 3 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 developed by the Seismic Qualification Utility Group (SQUG).-This method is also commonly known as SQUG.

1.3. Response to generic letter 87-02 Generic Letter 87-02, "Verification of Seismic Adequacy of Mechanical and Electrical Equipment in Operating Reactors, Unresolved Safety Issue (USI) A-46," was issued because the NRC concluded that the seismic adequacy of certain equipment in operating plants must be reviewed against seismic criteria developed during the resolution of Unresolved Safety Issue (USI) A-46.

The NRC determined that it is not feasible to require older operating plants to meet new licensing requirements that were not in use when plants were licensed. Therefore, an alternative method was selected to verify the seismic capability of equipment. This alternative method used a compilation of existing earthquake experience data supplemented by test data as the basis to verify the seismic capability of equipment. Generic Letter 87-02 allowed the seismic verification to be accomplished by utilities through a generic program, and the Seismic Qualification Utility Group (SQUG) was formed. The SQUG developed a Generic Implementation Procedure (GIP) that documents the seismic verification process, procedures, and methodologies for verifying the seismic qualification of equipment and resolving USI A-46. Supplement 1 of Generic Letter 87-02 endorsed use of the GIP for the seismic qualification process and contained revised licensee actions. Oconee performed the seismic qualification process in accordance with the NRC enforced version of the GIP. In a Safety Evaluation Report, the NRC concluded that Oconee met the purpose and intent of the seismic qualification process and that the corrective actions and modifications provide sufficient basis to close the USI A-46 review at Oconee.

The seismic verification process is considered part of the seismic licensing basis for Oconee, so the seismic qualification criteria developed by the SQUG in response to Generic Letter 87-02 must be considered during mechanical and electrical equipment modifications.

1.4. Codes and Standards The following codes, standards, and specifications were used during the design, construction, testing and in-service inspection of Class 1 Structures:

ASME-1965 - Boiler and Pressure Vessel Code, Sections III, VIII, and IX

AISC - Steel Construction Manual, 6th ed Regulatory Guide 1.92, Combining Responses And Spatial Components In Seismic Response Analysis, Revision 1, February 1976 Regulatory Guide 1.29, Seismic Design Classification, Revision 3, September 1978 Supplement No. 1 To Generic Letter (GL) 87-02 That Transmits Supplemental Safety Evaluation Report NO.2 (SSER NO. 2) On SQUG Generic Implementation Procedure Revision 2, As Correction On February 14, 1992 (GIP-2), May 22, 1992 NRC Letter To SQUG Dated December 4, 1997. Supplemental Safety Evaluation Report NO. 3 (SSER NO. 3) On The Review Of Revision 3 To The Generic Implementation Procedure For Seismic Verification Of Nuclear Power Plant Equipment, Updated 5/16/97 (GIP-3)

NRC Letter To SQUG Dated 6/23/99, Review Of Seismic Qualification Utility Group's Report on the use of Generic Implementation Procedure for New and Replacement Equipment and Parts Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 4 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

2. Personnel Qualifications The personnel involved in the Oconee NTTF Recommendation 2.3 Seismic Walkdown effort met the qualification requirements of EPRI 1025286. The personnel responsibilities and qualifications are outlined in TABLE 2.1 below. (Note: PE=Professional Engineer, CLB=Current License Basis, SWEL= Seismic Walkdown Equipment List)

Table 2.1 Personnel Degree Years of Relevant E

" >0 Experience Qualifications E ---

w Russell Childs PE, SCEI', SWEf7*

X(3)

X (Duke Energy)

BS/Civil Engineering 30IPEEE Ray Mc Coy BS/Civil Engineering 32 PESCE X

(Duke Energy)

Bob Hester (DukesEer BS/Civil Engineering 36 PESCE X

(Duke Energy)

Paul Mabry BS/Nuclear 27 SRO('), STA(5)

X (Duke Energy)

Engineering Tommy Loflin AS/Electrical 35+

SRO(4)

X (Duke Energy)

Engineering Jim Weir BS/Mechanical 31 SWE'2),

(Duke Energy)

Engineering SFC SYS ENG Charles M.

BS/Civil Engineering 28 PE,SCE(1 ), SWE (2)

X(3)

Conselman (ARES)

James White (ARES)

BS/Civil Engineering 42 PE,SCE11), SWE (2)

X(3)

John North (ARES)

BS/Civil Engineering 28 PE,SWE(2)

X(3)

Mike Donnelly BS/Civil Engineering 4

SWE(2)

X (ARES)

Anthony Fazio BS/Chemical 40+

SWE(2)

X (Shaw)

Engineering John Spizuoco BS/Mechanical 44 PE,SCE('), SWE(2)

X (Shaw)

Engineering Arthur Richert BS/Mechanical 32 PE,SWE(2)

X (Shaw)

Engineering Paul Baughman BS/Civil Engineering

>40 PE,SCE(1 ), SWE (2)

(ARES)

George Bushnell BS/Mechanical

>40 PE,SCE(1 ), SWE (2)

X (Shaw)

Engineering Robert L. Keiser MS/Civil Engineering

>20 PE,SCE(1 ), SWE (2)

X (Duke Energy)

NOTES:

1) Seismic Capability Engineers (SCEs) who have successfully completed EPRI Experience Based Seismic Evaluation training.

2) Seismic Walkdown Engineers (SWEs) have successfully completed EPRI 1025286 2 day walkdown training course.

3) Senior Team Member.

4) Prior Senior Reactor Operator (SRO).

5) Prior Shift Technical Advisor

6) IPEEE seismic Walkdown Coordinator and current A-46/IPEE Program Owner (SQUG)

3. Selection of SSCs The Oconee Unit 2 SWEL-1 and SWEL-2 equipment selection was performed in accordance with the EPRI guidance outlined in EPRI Technical Report #1025286. SWEL-1 represents a Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 5 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 sample of items to safely shut down the reactor and rmrairntain containment integrity. SWEL-2 represents spent fuel pool related items.

The Oconee USI A-46/IPEEE Safe Shutdown Equipment List (SSEL) was used as the basis for the Base-1 equipment list. The scope of the Seismic Walkdown Equipment List (SWEL) is limited to SSCs that are classified as Seismic Category I. This is done such that items have a defined seismic licensing basis against which to evaluate the as-installed configuration. Oconee is a USI A-46 plant. The purpose of the USI A-46 program was to verify the seismic adequacy of essential equipment in older operating plants that had not been qualified in accordance with more recent criteria. Many of the SSC's listed in the USI A-46/IPEEE Safe Shut down Equipment List (SSEL) are not category I. However, Oconee programmatically maintains the seismic capability of these components. Therefore, for the purpose of developing the SWEL all USI A-46/IPEEE components are considered to have a seismic licensing basis.

The A-46/IPEEE SSEL effectively represents the output of EPRI guidance equipment Screening criteria's #1, #2 and #3. The underlying data used to generate the Base-1 list is contained in an ACCESS database. This ACCESS database was used to generate the Base-1 Equipment List from which the SWEL-1 was selected. The equipment comprising the Base-1 equipment list is contained in Attachment 1. Their individual Safety Function is identified as shown below. Some components support more than one safety function.

A. Reactor reactivity control B. Reactor coolant pressure control C. Reactor coolant inventory control D. Decay heat removal E. Containment function The Base-1 Equipment List is comprised of 2264 components from Oconee Units 1, 2 & 3 &

components that support all 3 Units (Common). The Base-1 Equipment list is contained in.

3.1. SWEL-1 Development EPRI TN-1 025286 specifies that the SWEL-1 should be comprised of between 90-120 components and that each unit should have its own individual SWEL-1.

357 of the Base-1 components are Common components that support all 3 units. In order to account for these common components, -10% (39 items) of the base-1 common components were selected as SWEL-1 components. All of the 39 common components are considered to be part of each individual unit's SWEL-1.

The Unit 2 SWEL-1 consists of 131 components. Of these 131 components, 39 are common components which are also represented in each individual unit's SWEL-I. Attachment 2 contains the SWEL-1 components for Unit 2. The criteria for selection of equipment to be included in the SWEL are described in EPRI TN-1025286 section 3 Screen #4 -- Sample Considerations -

Five sample selection attributes that should be represented in SWEL 1:

" A variety of types of systems

" Major new and replacement equipment

" A variety of types of equipment

" A variety of environments

" Equipment enhanced due to vulnerabilities identified during the IPEEE program Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 6 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 In addition to the five sample considerations listed above, the equipment selected for the SWEL-1 should include considerations of the contribution to Risk for the SSC's and should also include a review by appropriate Operations personnel.

SWEL-1 Systems -

The SWEL-1 equipment list represents 23 systems associated with the 5 safety functions.

SWEL-1 Types of Equipment -

The SWEL-1 lists contain representative equipment from all equipment classes with the following exceptions:

There are no equipment Class 11 (Chillers), Class 12 (Air Compressors), or Class 13 (Motor - Generators) components on the Unit 2 SWEL-1 list because they are not represented in the Base-1 list.

There are no equipment Class 17 (Engine - Generators) components on the Unit 2 SWEL-1. The Standby Shutdown Facility (SSF) Diesel Engine (16 Cylinder)

(OSSFDE000A) is listed on the Base-1 list. However, it was not selected as part of the SWEL-1 due to its inherently robust nature and the very low seismic input at its location.

Class 09 (Fans) are not included in the Unit 2 SWEL-1 but are represented in the SWEL-1 Common components list.

SWEL-1 Equipment locations -

The SWEL-1 equipment list includes equipment located in a broad variety of areas and environments. These areas comprise multiple buildings and elevations and include equipment located both inside and outside. The equipment areas provide a broad range of equipment environmental conditions, which include:

Mild environmental conditions with limited temperature and humidity variations (e.g.

Control Room, Cable Rooms, Equipment Rooms, SSF Electrical Room, Relay House, etc.)

Moderate environmental conditions (e.g. general areas of the Auxiliary Building, East &

West Penetration Rooms, SSF Diesel Room, SSF Battery Room, Control Room Ventilation Rooms, etc.)

Moderate to harsh environmental conditions (e.g. LPI/BS/HPI Pump Rooms, LPI Cooler Room, etc.)

" Harsh environmental conditions (e.g. Inside RB Containment, etc.).

Partial exposure to outdoor environmental conditions (e.g. Switchyard, Intake Structure)

" Wet environments (Keowee Turbine Wheel Pit)

SWEL-1 Maior New and Replacement Equipment -

In order to capture significant new and replacement equipment on the SWEL-1, a query was written which related the Base-1 equipment list to underlying data supporting Engineering Changes in the Duke Energy Nuclear Asset Suite Software (NAS). By doing this, a list EC's associated with all components on the Base-1 equipment list was generated. Editorial and minor modifications were then filtered out of the list. The following New and Replacement Equipment have been included in the Unit 2 SWEL-1. Contains Security-Sensitive Information - Withhold From Public Disclosure under IOCFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 7 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

.Name Engineering*..

MOD Description.

ID.No.

Change, 2BSPS0021 RB PRESS HI (ES CH 8) TRAIN B EC0000077068 OD200069 - (REFURB) UNIT 2 RPS REPLACEMENT MODIFICATION 2BSPS0021 RB PRESS HI (ES CH 8) TRAIN B EC0000077067 OD200068 - (REFURB) UNIT 2 ESFAS REPLACEMENT MODIFICATION 2CLT0015A UST 2B LEVEL EC0000075264 NSM ON-23098/O0/O0/AK1 - UPPER SURGE TANK INVENTORY PROTECTION 2CPS0036 UST MAKEUP LEVEL CONTROL EC0000075264 NSM ON-23098/00/00/AK1 - UPPER SURGE TANK (PS-36)

INVENTORY PROTECTION 2CVA0192 HOTWELL NORMAL MAKEUP EC0000075356 NSM ON-23098/00/00/AM1 - UPPER SURGE CONTROL TANK INVENTORY PROTECTION 2CRDCACC1 DCRDCS CONTROL CABINET CC-1 EC0000090126 OD200547 - (REFURB) REPLACE CRDM CONTROL SYSTEM 2ELBC2CA CONTROL BATT CHGR 2CA EC0000091849 EC91849 - BKUP PWR-U2 PRESR.HTR AND BAT CHRG 2CA & 2CB FRM PSW 2ELPL2SKP 240/120V PPB 2SKP EC0000049837 NSM ON-43000/00/00/BL1 - OCONEE SERVICE WATER 2ESCA2ESTC2 ESFAS EVEN CH TERM CAB 2ESTC2 EC0000077067 OD200068 - (REFURB) UNIT 2 ESFAS REPLACEMENT MODIFICATION 2ESVTF0001 600/240/120V 2SKM POWER EC0000049837 NSM ON-43000/00/00/BL1 - OCONEE SERVICE TRANSFORMER WATER 2HPIHXOOOA LETDOWN COOLER 2A EC0000104674 ALLOW FOR REPLACEMENT OF 1/2/3 HPI HX OOOA/OOOB (LETDOWN COOLERS) 2LPIFT0004P LPI TRAIN 2B INJ FLOW TRANS EC0000051801 NSM ON-23093/00/O0/AK1 - (REFURB) ECCS AND (Powered by ICCM)

OP. EQ., LPI CROSS CONNECT 2LPIFT0004P LPI TRAIN 2B INJ FLOW TRANS EC0000089712 OD200443 - (REFURB) UNIT 2 CONTROL ROOM (Powered by ICCM)

CHART REC REPLACEMENT 2RCLT0123 2A RCS HOT LEG LVL (ICCM A)

EC0000089712 OD200443 - (REFURB) UNIT 2 CONTROL ROOM CHART REC REPLACEMENT 2RCPT0166P RCS LOOP B PRESS TRANS EC0000077068 OD200069 - (REFURB) UNIT 2 RPS REPLACEMENT MODIFICATION 2RCPT0225 U2 RC LOOP A PRESSURE EC0000090683 OD200614 - REPLACE SSF CONTROL CONSOLE INDICATORS AND RCS PTS 2RCRD0043A PRZ RTD EC0000089712 OD200443 - (REFURB) UNIT 2 CONTROL ROOM CHART REC REPLACEMENT Oconee revised the modification process at the completion of the A-46/IPEEE programs to require plant modifications to evaluate impact to A-46/IPEEE components to ensure that the seismic capability of A-46/IPEEE components was not degraded.

Current site projects such as Protected Service Water (PSW) which are not operational and not currently credited within the Current Licensing Basis of Oconee are not within the scope of the SWEL-1.

SWEL-1 Equipment Enhanced per IPEEE -

Significant IPEEE enhancements associated with the Base-1 equipment list as reported in the IPEEE submittal dated 12/15/1997 were identified. SWEL-1 SSCs were selected such that a sampling of SSCs which had been enhanced per IPEEE was included. The following SWEL-1 SSCs were enhanced due to IPEEE.

p<

.)'

.11 E

I.

Name 2ELBK2A 240/120V 2A REGULATOR OUTPUT BKR ONOE-14019 Add weld between 2B/XFMR and plate.

2ELIRMC12 I INSTRUMENT RACK 2MC-12 ONOE-14280 Add top bracing to instrument rack. Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 8 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 I

,Equip Name Engineering ID~am o.Cag MOD Description' ID

[E No.**...

=:

i.

Change 2ELLX2X1 600V LC 2X01 ONOE-14718 Weld transformer section of Load Centers 2X01 to embedded angle.

2ELLX2X2 600V LC 2X02 ONOE-14719 Weld transformer section of Load Centers 2X02 to embedded angle.

2ELMX2XJ 600V MCC 2XJ ONOE-14377 Repair anchorage or document adequacy of underlying shim plate at rear of MCC 2ELMX2XL MCC 2XL ONOE-14427 Trim cable tray above MCC and restrain horizontally.

2ELMX2XO MCC 2XO ONOE-12879 Add shims to 2XO.

2ELMX2XSF MCC 2XSF(60OV)

ONOE-12957 Add padding between 2XSF(208v) and 3XSF(208v).

2ELMX2XSFA MCC 2XSF(208V)

ONOE-12957 Add padding between 2XSF(208v) and 3XSF(208v).

2ELTF2B XFMR 2B (600V TO 240V)

ONOE-14019 Add weld between 2B/XFMR and plate.

SWEL-1 Risk Considerations -

EPRI TN-1 025286 requires that the development of SWEL 1 should include consideration of the importance of the contribution to risk for the SSCs.

In response to IPEEE, Oconee utilized the results of seismic margin methodology walkdowns to enhance the existing seismic PRA. These results are documented in OSC-10225 "Seismic PRA/IPEEE Backup Calculations" and summarized in the Supplemental IPEEE submittal Report. From the conclusions presented in the Supplemental IPEEE submittal Report, PRA sequences involving loss of power and SSF response make up several of the most dominate PRA cut sets. SSC's supporting Keowee, the SSF and the 230 KV switchyard are well represented in the SWEL-1.

In addition, input was obtained from the General Office PRA group to determine a ranking of the most seismically risk significant components.

Of the 31 unscreened PRA events with a % contribution to CDF > 0, 19 are represented in the combined SWEL-I's for Units 1, 2 &3. This represents 61% of PRA risk significant components and meets the intent of EPRI TN-1 025286 SWEL-1 Operations review -

The SWEL-1 equipment listed was submitted to Oconee Operations for review as recommended within EPRI TN-1 025286. Operations concurred with the equipment listed on the SWEL-1 list. The SWEL-2 equipment list was developed within the Oconee Engineering organization by a highly experienced engineer who had previously held a Senior Reactor Operators License (SRO) and was previously an Operations Shift Technical Advisor (STA).

3.2. SWEL-2 Development The Oconee Unit 2 SWEL-2 spent fuel pool equipment list was developed in accordance with the EPRI guidance. Seismic Category I structures, piping, and containment penetrations were specifically excluded by the EPRI guidance. The four screening criteria specified were as follows:

1) Seismic Category I or USI A-46 (SQUG) licensing bases,

2) Spent Fuel Pool (SFP) equipment appropriate for an equipment walkdown process,

3) Sample considerations represent broad population of equipment with considered sample selection attributes such as: Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 9 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTE Recommendation 2.3

a. represerýt a variety of systems,

b. major new/replacement equipment,

c. variety of equipment types,

d. variety of environments

4) Equipment which could result in rapid drain down of the SFP (includes both seismic and non-seismic components and similar factors outlined in 3) above.

The SWEL-2 equipment Base-2 (Attachment 3) was established based on screens #1 and

2 above. Equipment was selected from the Base-2 list based on screening criteria #3 above, and primarily included major equipment such as the spent fuel cooling system pumps, pump motor air handling units, and heat-exchangers.

The SWEL-2 list was further evaluated based on screening criteria #4 above, to include equipment which could result in SFP rapid drain-down, as defined by the EPRI guidance.

All three Oconee Unit's have SF Pool transfer tubes that open to the SF Pool in normal operation. The SSF RC Make-up and letdown lines penetrate into the SF Pool transfer tubes. The SSF Make-up and Letdown lines meet Seismic Category 1. There were also SF Pool discharge lines at valves SF22&50 and 3SF-22&50 that could meet the criteria for a rapid drain down due to a siphon if the SF Cooling pump discharge piping, which meets Seismic Category 1, were to fail outside the SF Pool.

However, this vulnerability had previously been identified and procedure requirements prevent system alignment and thereby remove this vulnerability. For these reasons, there are no rapid draw down items on the SWEL-2.

The SWEL-2 components were selected based on their radiological accessibility. Of the 3 pumps identified in the SWEL-2 base list, 2 were included in the SWEL-2. Of the 7 Tanks identified in the SWEL-2 base list, 4 were included in the SWEL-2. This sampling is in accordance with EPRI TN-1025286.

The final SWEL-2 list is provided in Attachment 4.

4. Seismic Walkdowns and Area Walk-Bys SWEL-1 SSCs which could only be accessed during an outage will be walked down by Duke Energy personnel and reported on at a later date. These SSCs are listed below.

unit Bldg""'

Equip ID No.

Name 2

AB 2MSVA0016 MAIN STEAM SAFETY RELIEF 2

RB 2CFTKOOOA CORE FLOOD TANK 2A 2

RB 2FDWLT0066 S/G 2A LEVEL 2

RB 2HPIFT0157 U2 RC MAKE UP PUMP FLOW 2

RB 2HPIHXOO0A LETDOWN COOLER 2A 2

RB 2HPIPU0005 SSF RC MAKEUP PUMP 2

RB 2RBCHXOOOAAUX AUX RBCU A 2

RB 2RCPT0166P RCS LOOP B PRESS TRANS 2

RB 2RCPT0225 U2 RC LOOP A PRESSURE 2

RB 2RCRD0043A PRZ RTD 2

RB 2RCRD0084A REACTOR OUTLET LOOP 2A 2

RB 2RCVA0005 PRZ STEAM SAMPLE ISOLATION 2

BH1 2ELSHBIT12 BIT INSTRUMENTATION SECTION Duke Energy contracted with the Shaw Group / ARES Corporation team to perform the majority of the NTTF 2.3 seismic walkdowns at Oconee Nuclear Station. A summary report of the Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 10 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 walkdowns along with the individual Seismic Walkdown Checklists and the Area Walk-By Checklists are contained in this report. The NTTF 2.3 Seismic Walkdown Report for Unit 2 is contained in Attachment 5..

Items found to be inaccessible during this walkdown are addressed below.

Inaccessible SSCs -

No Unit 2 SSC's were inaccessible due to their physical location or due to personnel safety concerns.

The anchorage for one SSC was only partially visible due to some of the welds being covered by mortar spillage from an adjacent masonry wall. A station Work request has been written to clean the weld area and the welds will be evaluated at a later date. This Item and several other inaccessible items listed below are common to all 3 units but will be included in the Unit 1 update report.

0 SYD OSYDPLSYDC1 SWITCHYARD DISTRIBUTION CENTER 1 K1 KEO K1PMGDTMPU1A SPEED CONTROL MAGNETIC PICKUP 1A K2 KEO K2ELKTNO203 TERM BOX TB-203 K2 KEO K2GAHX0003 GEN AIR COOLER 3 K2 KEO K2HPOPU88HA AC GEN HP LIFT PUMP (88HA)

K2 KEO K2TSLS63SB TURB SUMP LEVEL SWITCH (2TSLS0002)

An update to this report will be submitted by April 15, 2014. The update will provide the results associated with the Outage deferred items. Associated Area Walk bys for the listed components will be completed in conjunction with the individual SSC's.

5. Licensing Basis Evaluations A total of 17 potential adverse conditions were identified per the Seismic Walkdowns and the A total of 13 potential adverse conditions were identified per the Seismic Walkdowns and the Area walk-bys. All of these potential issues were entered into the Corrective Action Program (CAP).

All potential adverse conditions were evaluated for their compliance with the seismic licensing basis within the CAP and were found to be acceptable. Station Work Requests were written for some conditions as good practice. The potential adverse conditions and their individual Problem Investigation process (PIP) tracking numbers are listed in the NTTF 2.3 Seismic Walkdown Report for Unit 2 contained in Attachment 5.

6. IPEEE Vulnerabilities Resolution Report Oconee submitted its response to IPEEE on 12/21/1995 & 12/15/1997. In those submittals, Oconee stated that there were no underlying significant sequences (vulnerabilities) from external events. There were also no plant changes identified that would significantly reduce risk from external events.

Table 6-1 of the IPEEE Submittal dated 12/15/1997 listed 152 enhancements. The enhancements identified have been completed by either Station Work Request, Plant Modification or Analysis.

Oconee is a USI A-46 plant and performed the USI A-46 walkdowns in conjunction with the IPEEE walkdowns. In Oconee's letter to the NRC dated 9/12/2002, Oconee confirmed that outliers associated with Generic Letter 87-02 (USI A-46) have been completed. Oconee performed the USI A-46 seismic evaluations in conjunction with the IPEEE evaluations. The Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 11 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 criteria for both programs were conservatively enveloped such that an evaluation of a given component would address all aspects of both programs. IPEEE enhancements are a subset of the overall USI A-46 outliers. Therefore, implementation of the IPEEE enhancements is confirmed by the 9/12/2002 SQUG Outlier Resolution Completion Notice.

7. Peer Review Duke Energy (Duke) contracted with the Shaw Group (Shaw) / ARES Corporation (ARES)

Team to perform the NTTF 2.3 peer review at the Oconee Nuclear Station (ONS). The Peer Review Report is contained in Attachment 6.

The Peer Review Team consisted of three individuals, all of whom have seismic engineering experience as it applies to nuclear power plants. These individuals participated in the peer review of each of the activities. The members of the Peer review team and their qualifications are listed in table 2.1 The Peer Review team concluded that the Shaw/ARES methodology conforms to the guidance in Section 6 of EPRI 1025286. The peer review covered the following:

The selection of the SSCs included on the Seismic Walkdown Equipment List (SWEL).

A sample of the checklists prepared for the seismic walkdowns and area walk-bys.

The licensing basis evaluations.

The decisions for entering the potentially adverse conditions in the Corrective Action Program (CAP) process.

The submittal report.

The peer review process for the SWEL development and the seismic walkdowns consisted of the following:

Reviewing the activity guidance in EPRI 1025286, the NEI Q&A bulletins, the NEI first-mover reports, and NRC Temporary Instruction 2515/188.

Conducting an in-process review at the plant site, including interviews with the personnel performing the activity and reviewing in-process documentation.

Performing an in-plant surveillance (for the walkdown activity) of a seismic walkdown and an area walk-by.

Providing in-process observations and comments to the personnel performing the activities.

" Conducting a final review of a sample of the completed documentation.

The peer review process for the licensing basis evaluations and the decisions for entering potentially adverse conditions into the CAP consisted of reviewing the overall review process and a sample of the licensing basis reviews. The peer review process for the submittal report consisted of reviewing the draft submittal prepared by Oconee Design Engineering for licensing review.

The conclusion of the peer review is that the ONS NTTF 2.3 seismic walkdown effort has been conducted in accordance with the guidance in EPRI 1025286. Comments made during the in-process review of the SWEL development and the walkdowns have been addressed Contains Security-Sensitive Information - Withhold From Public Disclosure under IOCFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 12 of 13

Unit 2 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 satisfactorily. In-process comments on the final walkdown reports, the licensing basis reviews, and the submittal have also been resolved.

REFERENCES:

1) UFSAR Section 3.2.1 Seismic Classification (Rev. 21)

2) UFSAR Section 2.5.1.2 Site Geology (Rev. 21)

3) UFSAR Sections 2.5.2.10, 2.5.2.11 SSE/OBE (Rev. 21)

4) UFSAR Section 3.7 Seismic Design (Rev. 21)

5)

EPRI Report 1025286, Dated May 2012, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force (NTTF) Recommendation 2.3 (ATTACHMENT 1).

6) Oconee NRC Response to GL 88-20, Individual Plant Examination of External Events (IPEEE)

Submittal, dated Dec. 18, 1997, W. R. McCollum Jr. to NRC.

7) 7/9/12 correspondence to NRC from Ben C. Waldrep, "Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ATTACHMENTS:

1) Oconee Unit 2 SWEL-1 Base-1 List

2) Oconee Unit 2 SWEL-1

3) Oconee Unit 2 SWEL-2 Base-2 List and Rapid Drain Down List

4) Oconee Unit 2 SWEL-2

5) Seismic Walkdown Summary Report and Checklists

6)

PEER Review Summary Report Contains Security-Sensitive Information -Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 13 of 13 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

CCW CD 0001 0

CCW CD 0002 0

CCW PU 0001 0

CCW PU 0002 0

CCW PU 0003 0

CCW PU 0004 0

CCW PU 0005 0

CCW PU 0010 0

DA TK OOOA 0

DA TK 000B 0

DA TK OOOC 0

DA TK 0OOD 0

DJW HX OOOA 0

DJW HX 000B 0

EL BS 4160CT4 0

EL BS CCTRENCH 0

EL BS UFCT4 0

EL CA SYTC1 0

EL CA SYTC12 0

EL CA SYTC15 0

EL CA SYTC17 0

EL CA SYTC18 0

EL CA SYTC19 0

EL CA SYTC2 0

EL CA SYTC3 0

EL CA SYTC4 0

EL CA SYTC5 0

EL CA SYTC8 0

EL PL CT4FSC 0

EL PL DCSF 0

EL PL DCSF1 0

EL PL KSF 0

EL PL KSFC 0

EL SH ASWS 0

EL SH BlTO5 0

EL SH BlT09 0

EL SH BITlO 0

EL SH B2T05 0

EL SH B2T09 0

EL SH DGSWGR 0

EL TF OCT4 0

EL TF OCT5 0

FO PU 0005 0

FO TK 0003 Description SSF HVAC CONDENSER 1 SSF HVAC CONDENSER 2 AUX SERVICE WATER PUMP SSF AUX SERVICE WATER PUMP HVAC SERVICE WTR PUMP 1 HVAC SERVICE WTR PUMP 2 SSF DIESEL WATER JACKET PUMP SSF SUBMERSIBLE PUMP DIESEL STARTING AIR TANK A DIESEL STARTING AIR TANK B DIESEL STARTING AIR TANK C DIESEL STARTING AIR TANK D SSF DJW HEAT EXCHANGER A SSF DJW HEAT EXCHANGER B 4160V STANDBY BUS FDR FROM XFMR CT4TO BIT & B2T CONTROL CABLE TRENCH (SWYD TO OCONEE)

UNDERGROUND FEEDER (KEOWEE TO CT4)

SWYD TERMINAL CABINET 01 SWYD TERMINAL CABINET 12 SWYD TERMINAL CABINET 15 SWYD TERMINAL CABINET 17 SWYD TERMINAL CABINET 18 SWYD TERMINAL CABINET 19 SWYD TERMINAL CABINET 02 SWYD TERMINAL CABINET 03 SWYD TERMINAL CABINET 04 SWYD TERMINAL CABINET 05 SWYD TERMINAL CABINET 08 CT4 FAN SPEED CABINET 125 VDC POWER PNL BRD DCSF 125 VDC DISTRIBUTION CENTER DCSF-1 208/120VAC SSF VITAL PWR PNL (GRAY) 120V PPB KSFC AUX SERV WATER SWGR (4160V) (1TD-0)

SKI CT4 TO STDBY BUS 1 FDR BKR SECTION SL1 CT5 STDBY BUS 1 FDR BKR SECTION AUX SERVICE WATER SWGR BKR SECTION SL2 CT5 STDBY BUS 2 FDR BKR SECTION SK2 CT4 STDBY BUS 2 FDR BKR SECTION DIESEL GENERATOR SWITCHGEAR XFMR CT-4 XFMR CT-S SSF DIESEL ENGINE FUEL OIL TRANSFER PUMP SSF DIESEL OIL DAY TANK Bldg.

FLEL Safety Function SSF 817 B,C SSF 817 B,C AB 771 D

SSF 754 D

SSF 754 B,C SSF 754 B,C SSF 754 B,C SSF 796 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C TB 796 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 796 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E AB 771 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E SSF 777 A, B, C, D, E BH3 796 A, B, C, D, E YD 796 A, B, C, D, E SSF 777 B,C SSF 777 B,C Page 1 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

FO TK 0004 0

HPS PG 0012 0

HPS PG 0013 0

HPS PG 0016 0

HPS PG 0224 0

HPS PG 0225 0

HPS PG 0226 0

HPS PU 0001 0

HPS PU 0002 0

HPS PU 0003 0

HPS VA 0140 0

HPS VA 0147 0

HPS VA 0154 0

LPS FL OOOA 0

LPS FL 000B 0

LPS FL 0OOC 0

LPS PS 0097 0

LPS PS 0098 0

LPS PU OOOA 0

LPS PU 000B 0

LPS PU 0OOC 0

LPS VA 0175 0

LPS VA 0182 0

LPS VA 0189 0

NI CA 0225 0

RCW HX 0O0A 0

RCW HX 000B 0

RCW HX O0OC 0

RCW HX 000D 0

SSF BA DCSF 0

SSF BA DCSFS 0

SSF CA 0002 0

SSF CA 0003 0

SSF CA ICI 0

SSF CA IC2 0

SSF CA MEC 0

SSF DE O00A 0

SSF MX XSF 0

SSF PL SSFCP 0

SSF SH OTS1 0

SYD BA SY1 0

SYD BA SY2 0

SYD BC SY1 0

SYD BC SY2 Description SSF DIESEL OIL STORAGE TANK JOCKEY PUMP DISCH. PRESS. GAGE HPSW PUMP B DISCH. PRESS. GAGE HPSW PUMP A DISCH. PRESS. GAGE HPSW PUMP A STRAINER DP GAGE HPSW PUMP B STRAINER DP GAGE JOCKEY PUMP STRAINER DP GAGE HPSW STANDBY PUMP A HPSW STANDBY PUMP B HPSW JOCKEY PUMP Seal Supply Reg. Valve Seal Supply Reg. Valve Seal Supply Reg. Valve LPSW PUMP A STRAINER LPSW PUMP B STRAINER LPSW PUMP C STRAINER A LPSW HDR PRESS #1 A LPSW HDR PRESS #2 LPSW PUMP A LPSW PUMP B LPSW PUMP C LPSW PUMP A SEAL FLOW REG LPSW PUMP B SEAL FLOW REG LPSW PUMP C SEAL FLOW REG SSF NUCLEAR INSTRUMENTATION RACK A RCW HEAT EXCHANGER B RCW HEAT EXCHANGER C RCW HEAT EXCHANGER D RCW HEAT EXCHANGER DCSF SSF NORMAL BATTERY DCSFS SSF STANDBY BATTERY PZR HEATER CAB (SSF)SSF PRESSURIZER HEATER CABINET (PHC)

SSF PRESSURIZER HEATER CABINET (PHC1)

SSF EOC SYS INTERCONN CAB ICI SSF EOC SYS INTERCONN CAB IC2 MISC EQUIP CAB SSF DIESEL ENGINE B (16 CYL)

MCC XSF(600V)

SSF CONTROL PANEL OTS1 SSF ESSENTIAL SWGR 4160V 230KV SWYD BATTERY #SY1 230KV SWYD BATTERY #SY2 230KV SWYD BATTERY CHARGER SY1 230KV SWYD BATTERY CHARGER SY2 Bldg.

FLEL Safety Function YD 785 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B

TB 775 B

TB 775 D

SSF 777 A, B, C, D, E TB 775 D

TB 775 D

SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, E SSF 777 A, B, C, E SSF 797 A, B, C, D, E SSF 797 A, B, C, D, E SSF 797 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 797 A, B, C, D, E SSF 777 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E Page 2 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

SYD BD RB02 0

SYD BD RB03 0

SYD BD RBO6 0

SYD BD RB07 0

SYD BD RB08 0

SYD BD RB1O 0

SYD BD RB17 0

SYD BD RF02 0

SYD BD RF03 0

SYD BD RF06 0

SYD BD RF17 0

SYD BD SRB06 0

SYD BD SRB09 0

SYD BD SRB14 0

SYD BD SRB15 0

SYD BD SRB17 0

SYD BD SRF06 0

SYD BD SRF07 0

SYD BD SRF08 0

SYD BD SRF09 0

SYD BD SRF1O 0

SYD BD SRF17 0

SYD BK PCB08 0

SYD BK PCB09 0

SYD BK PCB12 0

SYD BK PCB15 0

SYD BK PCB33 0

SYD BS 230KRED 0

SYD BS 230KYEL 0

SYD BS TRENCH 0

SYD PL DYA 0

SYD PL DYB 0

SYD PL DYC 0

SYD PL DYE 0

SYD PL DYF 0

SYD PL DYG 0

SYD PL SYDC1 0

SYD PL SYDC2 0

SYD TF RBPT 0

SYD TF YBPT 0

VS AH 0042 0

VS AH 0044EX1 0

VS AH 0044EX2 0

VS AH 0044EX3 Description SWITCHYARD RELAY BOARD RB02 SWITCHYARD RELAY BOARD RB03 SWITCHYARD RELAY BOARD RB06 SWITCHYARD RELAY BOARD RB07 SWITCHYARD RELAY BOARD RB08 SWITCHYARD RELAY BOARD RB1O SWITCHYARD RELAY BOARD RB17 SWITCHYARD RELAY BOARD RF02 SWITCHYARD RELAY BOARD RFO3 SWITCHYARD RELAY BOARD RF06 SWITCHYARD RELAY BOARD RF17 SWITCHYARD RELAY BOARD SRB06 SWITCHYARD RELAY BOARD SRB09 SWITCHYARD RELAY BOARD SRB14 SWITCHYARD RELAY BOARD SRB15 SWITCHYARD RELAY BOARD SRB17 SWITCHYARD RELAY BOARD SRF06 SWITCHYARD RELAY BOARD SRF07 SWITCHYARD RELAY BOARD SRF08 SWITCHYARD RELAY BOARD SRF09 SWITCHYARD RELAY BOARD SRF1O SWITCHYARD RELAY BOARD SRF17 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08) 230KV AC POWER CIRCUIT BREAKER 09 (PCB-09) 230KV AC POWER CIRCUIT BREAKER 12 (PCB-12) 230KV AC POWER CIRCUIT BREAKER 15 (PCB-15) 230KV AC POWER CIRCUIT BREAKER 33 (PCB-33) 230KV SWITCHYARD RED BUS 230KV SWITCHYARD YELLOW BUS MISC SWYD TRENCHES DC PAN ELBOARD A DC PANELBOARD B DC PANELBOARD C DC PANELBOARD E DC PANELBOARD F DC PANELBOARD G SWITCHYARD DISTRIBUTION CENTER 1 SWITCHYARD DISTRIBUTION CENTER 2 RED BUS POTENTIAL TRANSFORMER (EGPS)

YELLOW BUS POTENTIAL TRANSFORMER (EGPS)

AHU 0-42 HEATING AND A/C SSF BUILDING SSF CONST VENT SUPPLY FAN & MOTOR SSF SUMMER VENT SUPPLY FAN & MOTOR SSF ON LINE VENT SUPPLY FAN & MOTOR Bldg.

FLEL Safety Function SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SSF 817 B,C SSF 817 B,C SSF 817 B,C SSF 817 B,C Page 3 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 0

VS AH 0044EX4 SSF ENGINE EX FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX5 SSF SUMMER EXHAUST FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX6 SSF ON LINE EXHAUST FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX7 SSF CONSTANT EXHAUST FAN & MOTOR SSF 817 B,C 0

VS DA CDO1 SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA CD02 SSF SUMMER VENTILATION (VS-AH-044EX2) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA CD03 SSF ON-LINE VENTILATION (VS-AH-0044EX3) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA ID01 SSF INLET DAMPER ID-1 (AH EXHAUST FAN AH0044EX4)

SSF 817 B,C 0

VS DA ID01E ACTUATOR FOR INTAKE DAMPER SSF-ID-A & B SSF 817 B,C 0

VS DA ID01W ACTUATOR FOR INTAKE DAMPER SSF-ID-C & D SSF 817 B,C 0

VS DA ID02 INLET DAMPER ID-2 (SSF AH EXH FAN AHOO44EX3)

SSF 817 B,C 0

VS DA ID02A ACTUATOR FOR INLET DAMPER SSF-ID2 (EXH FAN AH0044EX3)

SSF 817 B,C 0

VS DA ID03 SSF INLET DAMPER ID-3 (AH EXHAUST FAN AH0044EX1)

SSF 817 B,C 0

VS DA ID03A ACTUATOR FOR INLET DAMPER SSF-ID3 (EXH FAN AH0044EX1)

SSF 817 B,C 0

VS DA ID04 SSF INLET DAMPER ID-4 (AH EXHAUST FAN AH0044EX2)

SSF 817 B,C 0

VS DA ID04A ACTUATOR FOR INLET DAMPER SSF-ID4 (EXH FAN AH0044EX2)

SSF 817 B,C 0

VS DA XD01 SSF EXH DAMPER XD-1 (AH EXH. FAN AH0044EX4)

SSF 817 B,C 0

VS DA XD01E ACTUATOR FOR EXH DAMPER SSF-XD-A&B SSF 817 B,C 0

VS DA XD01W ACTUATOR FOR EXH DAMPER SSF-XD-C&D SSF 817 B,C O

VS DA XD02 SSF PRESS OPER EXH DAMPER XD-2 (AH EXH FAN AH0044EX7)

SSF 817 B,C 0

VS DA XD03 SSF EXH DAMPER XD-3 (AH EXH FAN AH0044EX1)

SSF 817 B,C 0

VS DA XD03A ACTUATOR FOR EXH DAMPER SSF-XD3 (EXH FAN AH0044EX1)

SSF 817 B,C 0

VS DA XD04 SSF PRESS OPER EXH DAMPER XD-4 (AH EXH. FAN AHO044EX5)

SSF 817 B,C 0

VS DA XD05 SSF EXH DAMPER XD-5 (AH EXH. FAN AH0044EX2)

SSF 817 B,C 0

VS DA XDO5A ACTUATOR FOR EXH DAMPER SSF-XD5 (EXH FAN AH0044EX2)

SSF 817 B,C 0

VS DA XD06 SSF PRESS OPER EXH DAMPER XD-6 (AH EXH. FAN AH0044EX6)

SSF 817 B,C 0

VS PE SSFPE01 SSF SUMMER VENT. SYSTEM (VH) EXHAUST FAN (SSF-XF-3)

SSF 825 A, B, C, D, E 0

VS PE SSFPE02 SSF A/C SYSTEM AIR HANDLING UNIT SSF TBD A, B, C, D, E 0

VS PL CP01AH2 SSF CONTROL BOARD FOR THE HVAC SYSTEM SSF 817 A, B, C, D, E 0

VS PS SSFPS01 SSF CONSTANT VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS02 SSF SUMMER VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS03 SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS04 SSF CONSTANT VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS05 SSF SUMMER VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS06 SSF ON-LINE VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E O

VS PS SSFPS07 SSF ENGINE VENTILATION SYSTEM EXHAUST FAN SSF 782 A, B, C, D, E 0

VS PS SSFPS08 SSF A/C SYSTEM AIR FLOW PRESS SWITCH SSF TBD A, B, C, D, E 0

VS TT SSFCT1 HVAC TEMPERATURE CONTROLLER (FOR SSF-AH-1)

SSF 822 A, B, C, D, E 0

VS TT SSFCT2 HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

SSF 822 A, B, C, D, E 2

AS PT 0117P AUX STEAM PRESSURE TRANSMITTER (MS-126 & MS-129)

TB 796 D

2 BAG BD 2AB1 CONTROL BOARD 2AB1 AB 822 A, B, C, D, E 2

BAG BD 2AB2 CONTROL BOARD 2AB2 AB 822 A, B, C, D, E 2

BAG BD 2AB3 CONTROL BOARD 2AB3 AB 822 A, B, C, D, E 2

BAG BD 2UBI CONTROL BOARD 2UB1 AB 822 A, B, C, D, E Page 4 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

BAG BD 2UB2 2

BAG BD 2VB1 2

BAG BD 2VB2 2

BAG BD 2VB3 2

BS PS 0018 2

BS PS 0019 2

BS PS 0020 2

BS PS 0021 2

BS PS 0022 2

BS PS 0023 2

BS PT 0004P 2

BS PT 0005P 2

BS PT 0006P 2

BS PU 0001 2

BS PU 0002 2

BS VA 0001 2

BS VA 0002 2

BS VA 0003 2

BS VA 0004 2

C CD OOOA 2

C CD 000B 2

C CO OooC 2

C DM OOOA 2

C DM 000B 2

C DM OOC 2

C DM O00D 2

C DM OOOE 2

C HX 002A 2

C HX 002B 2

C LT 0015A 2

C LT 0036 2

C PS 0015 2

C PS 0036 2

C PS 0227 2

C PU 0010 2

C PU 0011 2

C PU 0012 2

C PU 0019 2

C PU 0020 2

C PU 0021 2

C PU 0022 2

C PU 0023 2

C SV 1920 2

C TK 0003 Description CONTROL BOARD 2UB2 CONTROL BOARD 2VB1 CONTROL BOARD 2VB2 CONTROL BOARD 2VB3 RB PRESS HI (ES CH 7) TRAIN A RB PRESS HI (ES CH 8) TRAIN B RB PRESS HI (ES CH 7) TRAIN A RB PRESS HI (ES CH 8) TRAIN B RB PRESS HI (ES CH 7) TRAIN A RB PRESS HI (ES CH 8) TRAIN B RB PRESS XMTR (ES CH 2A)

RB PRESS XMTR (ES CH 2B)

RB PRESS XMTR (ES CH 2C)

RBS PUMP 2A RBS PUMP 2B RB SPRAY HEADER 2A ISOLATION RB SPRAY HEADER 2B ISOLATION RBS PUMP SUCTION ISOL RBS PUMP SUCTION ISOL CONDENSER 2A CONDENSER 2B CONDENSER 2C POLISHING DEMINERALIZER 2A POLISHING DEMINERALIZER 2B POLISHING DEMINERALIZER 2C POLISHING DEMINERALIZER 2D POLISHING DEMINERALIZER 2E CONDENSATE COOLER 2A CONDENSATE COOLER 2B UST 2B LEVEL UST 2A LEVEL UST MAKEUP LEVEL CONTROL (PS-15)

UST MAKEUP LEVEL CONTROL (PS-36)

CONDENSATE BOOSTER PUMP SUCTION HEADER PRESS LOW HOTWELL PUMP 2A HOTWELL PUMP 2B HOTWELL PUMP 2C HOLDING PUMP 2A HOLDING PUMP 2B HOLDING PUMP 2C HOLDING PUMP 2D HOLDING PUMP 2E SOLENOID VLV TO HOTWELL NORMAL MAKEUP CONTROL - VALVE 2C-SLURRY TANK Bldg.

FLEL Safety Function AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 E

AB 809 E

AB 758 E

AB 809 E

AB 758 E

TB 775 D

TB 838 D

TB 775 D

Page 5 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

C TK 0O0A 2

C TK O0OB 2

C TK QOOC 2

C VA 0192 2

C VA 0391 2

CC HX OOOA 2

CCW FT 0225 2

CCW PL 0268 2

CCW PL 0287 2

CCW PU 0001 2

CCW PU 0002 2

CCW PU 0003 2

CCW PU 0004 2

CCW PU 0024 2

CCW VA 0268 2

CCW VA 0269 2

CCW VA 0287 2

CF TK OOOA 2

CF TK 000B 2

CRD CA 0001 2

CRD CA CC1 2

CRD CA CC2 2

CRD CA CC3 2

CRD CA CC4 2

CRD CA CC5 2

CRD CA CC6 2

CRD CA SRPSCC1 2

CRD CA SRPSCC2 2

CS VA 0005 2

CS VA 0006 2

EHC CA EHC1 2

EHC CA EHC2 2

EHC CA EHC3 2

EHC CA EHTC1 2

EHC CA EHTC2 2

EHC SV 1083 2

EHC SV 1084 2

EL BA 2CA 2

EL BA 2CB 2

EL BA 2PA 2

EL BA 2PB 2

EL BC 2CA 2

EL BC 2CB 2

EL BC 2PA Description UPPER SURGE TANK 2A UPPER SURGE TANK 2B UPPER SURGE TANK DOME HOTWELL NORMAL MAKEUP CONTROL HOTWELL SUPPLY ISOL TO TDEFW COMPONENT COOLER 2A SSF ASW FLOW REMOTE STARTER ENCLOSURE FOR 2CCW-268 REMOTE STARTER ENCLOSURE FOR 2CCW-287 CCW PUMP 2A CCW PUMP 2B CCW PUMP 2C CCW PUMP 2D EFWPT OIL COOLER PUMP SSF ASW PUMP DISCH ISOL CROSSOVER ISOLATION TO A SSF ISOL VALVE CORE FLOOD TANK 2A CORE FLOOD TANK 2B CRD AC REACTOR TRIP BKR CABINET DCRDCS CONTROL CABINET CC-1 DCRDCS CONTROL CABINET CC-2 DCRDCS CONTROL CABINET CC-3 DCRDCS CONTROL CABINET CC-4 DCRDCS CONTROL CABINET CC-5 DCRDCS CONTROL CABINET CC-6 DCRDCS CONTROL CABINET SRPS CC1 DCRDCS CONTROL CABINET SRPS CC2 QUENCH TANK DRAIN QUENCH TANK DRAIN EHC CAB 2EHC1 EHC CAB 2EHC2 EHC CAB 2EHC3 EHC TERM CAB 2EHTC1 EHC TERM CAB 2EHTC2 MASTER TRIP SOLENOID VALVE A MASTER TRIP SOLENOID VALVE B CONTROL BATT 2CA CONTROL BATT 2CB PWR BATT 2PA PWR BATT 2PB CONTROL BATT CHGR 2CA CONTROL BATT CHGR 2CB PWR BATT CHGR 2PA Bldg.

FL EL Safety Function TB 838 D

TB 838 D

TB 775 D

AB 783 A

AB 796 D

SSF 754 D

SSF 758 D

INT 810 D,A INT 810 D,A INT 810 D,A INT 810 D,A TB 775 C

SSF 754 D

RB 777 D

SSF 754 D

RB 797 B, D RB 817 B,D AB 809 A

AB 809 A

RB 777 A, B,C AB 758 A, B,C AB 809 D

AB 809 D

TB 809 D

AB 809 A,B,C,D,E AB 809 A, B,C, D,E TB 796 A, B,C, D,E TB 796 A,B,C,D,E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E Page 6 of 23 Oconee Unit2, SWEL-1, Base 1 Equipment List N-.

Unit Sys 2

EL 2

EL Type Number BC 2PB BI 2DIA BI 2DIB BI 2DIC BI 2DID BI 2KI BI 2KU BI 2KX BK 2A BK 2B BS 230CT2 BS 4160CT2 BS 4160MFB1 BS 4160MFB2 CA 2AT3 CA 2AT4 CA 2AT8 CA 2AXTC2 CA 2EB1 CA 2EB2 CA 2EB3 CA 2EB4 CA 2EB5 CA 2EB6 CA 2EB7 CA 2EB8 CA 2EF1 CA 2EF2 CA 2EF3 CA 2EF4 CA 2EF5 CA 2EF6 CA 2EF7 CA 2EF8 CA 2MTC1 CA 2MTC2 CA 2MTC3 CA 2MTC4 CA 2TTC4 CA SGLC2 DI 2ADA DI 2ADB DI 2ADC DI 2ADD Description PWR BATT CHGR 2PB 120V STATIC INV 2DIA 120V STATIC INV 2DIB 120V STATIC INV 2DIC 120V STATIC INV 2DID STATIC INVERTER 2KI (INCLUDES STATIC XFER SWITCH)

STATIC INVERTER 2KU (INCLUDES STATIC XFER SWITCH)

STATIC INVERTER 2KX (INCLUDES STATIC XFER SWITCH) 240/120V 2A REGULATOR OUTPUT BKR 240/120V 2B REGULATOR OUTPUT BKR CT2 OVERHEAD FEEDER (SWYD PCB 27 TO CT2) 4160V STARTUP BUS FROM TRANSFORMER CT2 4160V MAIN FEEDER BUS 1, B12, (BITTO 2TC,2TD,2TE) 4160V MAIN FEEDER BUS 2, B22, (BiT TO 2TC,2TD,2TE)

AREA TERM CAB 2AT3 AUXILIARY BENCHBOARD 2AB1 TERMINAL CABINET 2AT4 AREA TERM CAB 2AT8 AUX TERMINAL CABINET 2AXTC2 ELECTRICAL BOARD 2EB1 ELECTRICAL BOARD 2EB2 ELECTRICAL BOARD 2EB3 ELECTRICAL BOARD 2EB4 ELECTRICAL BOARD 2EB5 ELECTRICAL BOARD 2EB6 ELECTRICAL BOARD 2EB7 ELECTRICAL BOARD 2EB8 ELECTRICAL BOARD 2EF1 ELECTRICAL BOARD 2EF2 ELECTRICAL BOARD 2EF3 ELECTRICAL BOARD 2EF4 ELECTRICAL BOARD 2EF5 ELECTRICAL BOARD 2EF6 ELECTRICAL BOARD 2EF7 ELECTRICAL BOARD 2EF8 MISC TERM CAB 2MTC1 MISC TERM CAB 2MTC2 MISC TERM CAB 2MTC3 MISC TERM CAB 2MTC4 TU RB TERM CAB 2T"C4 STEAM GEN LOGIC CABINET ISOL DIODE ASSEMBLY 2ADA ISOL DIODE ASSEMBLY 2ADB ISOL DIODE ASSEMBLY 2ADC ISOL DIODE ASSEMBLY 2ADD Bldg.

FLEL Safety Function TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB

796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SYD 770 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E Page 7 of 23 OconC Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 2

EL DI 2ADE ISOL DIODE ASSEMBLY 2ADE AB 796 A, B, C, D, E 2

EL DI 2ADF ISOL DIODE ASSEMBLY 2ADF AB 796 A, B, C, D, E 2

EL DI 2ADG ISOL DIODE ASSEMBLY 2ADG AB 796 A, B, C, D, E 2

EL IR MC1 INSTRUMENT RACK 2MC-1 TB 775 D

2 EL IR MC12 INSTRUMENT RACK 2MC-12 TB 796 D

2 EL IR MC16 INSTRUMENT RACK 2MC-16 TB 796 D

2 EL IR MC2 INSTRUMENT RACK 2MC-2 TB 775 D

2 EL IR PIR UNIT 2 PNEUMATIC INSTR RACK AB 809 B

2 EL LX 2X1 600V LC 2XO1 TB 796 A, B, C, D, E 2

EL LX 2X10 600V LC 2X10 TB 796 A, B, C, D, E 2

EL LX 2X2 600V LC 2XO2 TB 796 A, B, C, D, E 2

EL LX 2X3 600V LC 2XO3 TB 796 A, B, C, D, E 2

EL LX 2X4 600V LC 2XO4 TB 796 A, B, C, D, E 2

EL LX 2X5 600V LC 2XO5 TB 796 A, B, C, D, E 2

EL LX 2X6 600V LC 2X06 TB 796 A, B, C, D, E 2

EL LX 2X8 600V LC 2XO8 AB 796 A, B, C, D, E 2

EL LX 2X9 600V LC 2XO9 AB 796 A, B, C, D, E 2

EL MX 2XA MCC 2XA TB 796 D

2 EL MX 2XAA 208V MCC 2XA-A TB 796 D

2 EL MX 2XB 600V MCC 2XB TB 775 D

2 EL MX 2XC MCC 2XC TB 775 D

2 EL MX 2XGA MCC 2XGA TB 796 D

2 EL MX 2XGB MCC 2XGB TB 796 D

2 EL MX 2Xi 600V MCC 2XI AB 809 D

2 EL MX 2XJ 600V MCC 2XJ AB 809 D

2 EL MX 2XL MCC 2XL AB 771 A, B, C 2

EL MX 2XN MCC 2XN AB 771 A, B, C 2

EL MX 2XO MCC 2XO AB 796 A, B, C, D, E 2

EL MX 2XP MCC 2XP AB 796 A, B, C, D, E 2

EL MX 2XR 600V MCC 2XR AB 838 A

2 EL MX 2XS1 MCC 2XS1 AB 796 A, B, C, D, E 2

EL MX 2XS2 MCC 2XS2 AB 796 A, B, C, D, E 2

EL MX 2XS3 MCC 2XS3 AB 796 A, B, C, D, E 2

EL MX 2XSF MCC 2XSF(600V)

SSF 817 A, B, C, D, E 2

EL MX 2XSF1 MCC 2XSF-1 (208V)

SSF 797 A, B, C, D, E 2

EL MX 2XSFA MCC 2XSF(208V)

SSF 817 A, B, C, D, E 2

EL PL 2CPS 2 POWDEX PANEL TB 775 D

2 EL PL 2DCA 125V DC 2DCA AB 796 A, B, C, D, E 2

EL PL 2DCB 125V DC 2DCB AB 796 A, B, C, D, E 2

EL PL 2DIA 125V DC PPB 2DIA AB 809 A, B, C, D, E 2

EL PL 2DIB 125V DC PPB 2DIB AB 809 A, B, C, D, E 2

EL PL 2DIC 125V DC PPB 2DIC AB 809 A, B, C, D, E 2

EL PL 2DID 125V DC PPB 2DID AB 809 A, B,C,D,E 2

EL PL 2DL2 250V DC PPB 2DL2 AB 796 A, B, C, D, E Page 8 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

EL PL 2DP 2

EL PL 2EPSLP1 2

EL PL 2EPSLP2 2

EL PL 2KA 2

EL PL 2KB 2

EL PL 2KC 2

EL PL 2KD 2

EL PL 2KESP 2

EL PL 2KI 2

EL PL 2KM 2

EL PL 2KRA 2

EL PL 2KRB 2

EL PL 2KU 2

EL PL 2KVIA 2

EL PL 2KVIB 2

EL PL 2KVIC 2

EL PL 2KVID 2

EL PL 2KX 2

EL PL 2L21 2

EL PL 2SGFP 2

EL PL 2SKJ 2

EL PL 2SKK 2

EL PL 2SKL 2

EL PL 2SKM 2

EL PL 2SKN 2

EL PL 2SKP 2

EL PL 2TCPA 2

EL PL 2TDC31 2

EL PL HBP 2

EL PL MFBMRP 2

EL PL PZR2B 2

EL SH 2TCO1 2

EL SH 2TC14 2

EL SH 2TDO1 2

EL SH 2TD14 2

EL SH 2TE01 2

EL SH 2TE14 2

EL SH B1TO8 2

EL SH BIT1l 2

EL SH B1T12 2

EL SH B1T13 2

EL SH B2TO1 2

EL SH B2T02 2

EL SH B2T03 Description 125/250V DC 2DP EPSL PANEL 2EPSLP1 EPSL PANEL 2EPSLP2 120V PPB 2KA 120V PPB 2KB 120V PPB 2KC 120V PPB 2KD KEOWEE EM START PANEL 120V PPB 2KI 120V PPB 2KM 120V PPB 2KRA 120V PPB 2KRB 120V PPB 2KU 120V PPB 2KVIA 120V PPB 2KVIB 120V PPB 2KVIC 120V PPB 2KVID 120V PPB 2KX 125V DC PPB 2L21 SG FWP PANEL 120V PPB 2SKJ 120V PPB 2SKK 120V PPB 2SKL 240/120V PPB 2SKM 240/120V PPB 2SKN 240/120V PPB 2SKP TURB CONT PANEL 2TCPA TRANSDUCER CAB 2TDC3 UNIT 2 HEATER BLANKETING PANEL MAIN FDR BUS MONITOR RLY PANEL 600V PPB 2B (FOR PRESSURIZER HEATERS GROUP 2B BANK 2) 2TC BUS 1 INCOMING FDR BKR SECTION 2TC BUS 2 INCOMING FDR BKR SECTION 2TD BUS 1 INCOMING FDR BKR SECTION 2TD BUS 2 INCOMING FDR BKR SECTION 2TE BUS 1 INCOMING FDR BKR SECTION 2TE BUS 2 INCOMING FDR BKR SECTION S12 STDBY BUS 1 TO MFB1 BKR SECTION N12 MFB1 NORMAL FDR BKR SECTION BIT INSTRUMENTATION SECTION E12 MFB1 STARTUP FDR BKR SECTION E22 MFB2 STARTUP FDR BKR SECTION B2T POTENTIAL TRANSFORMER SECTION N22 MFB2 NORMAL FDR BKR SECTION Bldg.

FLEL Safety Function TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 822 A, B, C, D, E TB 775 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E TB 822 D

AB 809 A, B, C, D, E RB 817 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E Page 9 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys 2

EL 2

ES 2

ES Type Number SH B2T04 SH B2T06 SX 2KIBKUP SX 2KIBYP SX 2KUBKUP SX 2KUBYP SX 2KXBKUP SX 2KXBYP SX ABXFER TF 0CT2 TF 2A TF 2B TF 2KB TF 2KI TF 2KU TF 2XA TF 2XC TF 2XGA TF 2XGB TF 2XL TF 2XN TF 2XO TF 2XP TF 2XR TF 2XS1A TF 2XS2A TF 2XS3A TF 2XSF TN 1001 TN 1417 TN 1418 TN TBSFPC VR 2A VR 2B CA 0001 CA 0002 CA 0003 CA 0004 CA 0005 CA 0006 CA 0007 CA 0008 CA 0009 CA 2ESTC1 Description 4KV FDR BKR B2T-4 SSF 4KV SWGR OTSI-1 SECTION 522 STBY BUS 2 TO MFB2 BKR SECTION BACKUP TRANSFER SWITCH 2KI INVERTER BYPASS SWITCH 2KI BACKUP TRANSFER SWITCH 2KU INVERTER BYPASS SWITCH 2KU BACKUP TRANSFER SWITCH 2KX INVERTER BYPASS SWITCH 2KX 2A/2B REG XFER SW XFMR CT-2 XFMR 2A (600V TO 240V)

XFMR 2B (600V TO 240V)

XFMR 2KB (600:208:120V)

ISOLATION XFMR SHIELDED 2KI ISOLATION XFMR SHIELDED 2KU XFMR 2XA (600V TO 208V)

XFMR 2XC (600V TO 208V)

XFMR 2XGA(600V TO 208V)

XFMR 2XGB (600V TO 208V)

XFMR 2XL (600V TO 208V)

XFMR 2XN (600V TO 208V)

XFMR 2XO (600V TO 208V)

XFMR 2XP (600V TO 208V)

XFMR 2XR (600V/208V)

XFMR 2XS1A (600V TO 208V)

XFMR 2XS2A (600V TO 208V)

XFMR 2XS3A (600V TO 208V)

XFMR 2XSF (600VTO 208V)

TERMINAL BOX TB-1001 TERMINAL BOX TB-1417 TERMINAL BOX TB-1418 C SPENT FUEL COOLING PUMP PANEL REGULATED PWR SUPP REG 2A REGULATED PWR SUPP REG 2B ENGINEERED SAFEGUARDS ANALOG CABINET 1 (CHANNEL A)_

ENGINEERED SAFEGUARDS ANALOG CABINET 2 (CHANNEL B)

ENGINEERED SAFEGUARDS ANALOG CABINET 3 (CHANNEL C)

ENGINEERED SAFEGUARDS LOGIC CABINET It 4 ENEGINEERED SAFEGUARDS CABINET 5 ENGINEERED SAFEGUARDS LOGIC CABINET It 6 ENGINEERED SAFEGUARDS LOGIC CABINET 7 ES LOGIC CABINET 8 ES LOGIC CABINET 9 ESFAS ODD CH TERM CAB 2ESTC1 Bldg.

FLEL Safety Function BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E YD 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 771 A, B, C, D, E AB 771 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 838 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SSF 817 A, B, C, D, E TB 796 D

AB 809 D

AB 783 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 A, B, C, D, E Page 10 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment Lisf Unit Sys Type Number 2

ES CA 2ESTC2 2

ES CA 2ESTC2A 2

ES CA 2ESTC3 2

ESV CA 2ESV1 2

ESV PL 0001 2

ESV PT 0001 2

ESV PT 0002 2

ESV PU 0001 2

ESV PU 0002 2

ESV PU 0003 2

ESV TF 0001 2

ESV TF 0002 2

ESV TF 0003 2

ESV TK 0001 2

ESV TK 0002 2

ESV VA 0001 2

ESV VA 0002 2

ESV VA 0028 2

ESV VA 0029 2

FDW FT 0129 2

FDW FT 0130 2

FDW FT 0153 2

FDW FT 0154 2

FDW LT 0066 2

FDW LT 0067 2

FDW LT 0080 2

FDW LT 0081 2

FDW LT 0082 2

FDW LT 0083 2

FDW PL 0368 2

FDW PL 0369 2

FDW PL 0372 2

FDW PL 0374 2

FDW PL 0382 2

FDW PL 0384 2

FDW PL ATWSCP 2

FDW PS 0300 2

FDW PS 0382 2

FDW PS 0383 2

FDW PS 0384 2

FDW PS 0385 2

FDW PS 1011 2

FDW PS 1012 2

FDW PU 0003 Description ESFAS EVEN CH TERM CAB 2ESTC2 ESFAS AUX RLY CAB 2ESTC2A ESFAS EVEN/ODD TERM CAB 2ESTC3 ESV PUMP CONTROLS RELAY CABINET 2ESVl UNIT 2 ESV LOCAL CONTROL PANEL ESV Tank Pressure Transmitter ESV Tank Pressure Transmitter ESV Pump 2A ESV Pump 28 ESV Pump 2C 600/240/120V 2SKM POWER TRANSFORMER 600/240/120V 2SKN POWER TRANSFORMER 600/240/120V 2SKN POWER TRANSFORMER ESV Receiver Tank 2A ESV Receiver Tank 2B ESV Float Valve ESV Float Valve ESV Tank Min. Flow Valve ESV Tank Min. Flow Valve 2A EFW HEADER FLOW 2B EFW HEADER FLOW 2A EFW HEADER FLOW TRANSMITTER 2B EFW HEADER FLOW TRANSMITTER S/G 2A LEVEL S/G 2B LEVEL SG 2A LEVEL TRANSMITTER SG 2B LEVEL TRANSMITTER SG 2A LEVEL TRANSMITTER SG 2B LEVEL TRANSMITTER REMOTE STARTER ENCLOSURE FOR 2FDW-368 REMOTE STARTER ENCLOSURE FOR 2FDW-369 REMOTE STARTER ENCLOSURE FOR 2FDW-372 REMOTE STARTER ENCLOSURE FOR 2FDW-374 REMOTE STARTER ENCLOSURE FOR 2FDW-382 REMOTE STARTER ENCLOSURE FOR 2FDW-384 U2 ATWS CONTROL PANEL 2EFPT LOW HYDRAULIC OIL PRESS SWITCH FWPT 2A CONTROL OIL PRESS SWITCH FWPT 2A CONTROL OIL PRESS SWITCH FWPT 2B CONTROL OIL PRESS SWITCH FWPT 2B CONTROL OIL PRESS SWITCH FWP 2A DISCH HDR PRESS SWITCH MAIN FWP 2B DISCH HDR PRESS SWITCH TDEFW PUMP Bldg.

FLEL Safety Function AB 809 A,B,C,D,E AB 809 A, B,C, D,E AB 809 A, B,C, D, E AB 796 D

ESV 797 D

YD 797 D

ESV 797 D

AB 783 D

RB 777 D

AB 809 D

AB 838 D

TB 775 C

TB 775 D

Page 11 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipmnbnt List Unit Sys Type Number 2

FDW PU 0004 2

FDW PU 0005 2

FDW SV 0037 2

FDW SV 0038 2

FDW TN 2TBATWS1 2

FDW TN 2TBATWS2 2

FDW TN 2TBFPT 2

FDW VA 0086 2

FDW VA 0087 2

FDW VA 0105 2

FDW VA 0106 2

FDW VA 0107 2

FDW VA 0108 2

FDW VA 0129 2

FDW VA 0218 2

FDW VA 0315 2

FDW VA 0316 2

GEN BS IPB 2

GWD VA 0012 2

GWD VA 0013 2

HP VA 0003 2

HP VA 0004 2

HP VA 0005 2

HP VA 0020 2

HP VA 0021 2

HP VA 0024 2

HP VA 0025 2

HP VA 0026 2

HP VA 0027 2

HP VA 0031 2

HP VA 0071 2

HP VA 0120 2

HP VA 0355 2

HP VA 0398 2

HP VA 0409 2

HP VA 0410 2

HP VA 0426 2

HP VA 0428 2

HPI EP 0003 2

HPI EP 0075 2

HPI FT 0007A 2

HPI FT 0008A 2

HPI FT 0075 2

HPI FT 0101 Description MDEFW PUMP 2A MDEFW PUMP 2B STEAM GEN A SAMPLE ISOL VALVE FOR 2FDW-106 STEAM GEN B SAMPLE ISOL VALVE FOR 2FDW-108 ATSW TERM BOX 1 ATSW TERM BOX 2 FEEDWATER PUMP TURBINE TERMINAL BOX PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS SG 2A SAMPLE ISOLATION SG 2A SAMPLE ISOLATION SG 2B SAMPLE ISOLATION SG 2B SAMPLE ISOLATION PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS MDEFW PUMP 2A ISOLATION MDEFW PUMP 2B ISOLATION ISOLATED PHASE BUS 19KV QUENCH TANK VENT QUENCH TANK VENT LETDOWN ISOLATION LETDOWN ISOLATION LETDOWN ISOLATION RCP SEAL RETURN ISOLATION RCP SEAL RETURN ISOLATION BWST SUCTION ISOLATION BWST SUCTION ISOLATION HPI TRAIN 2A INJECTION HPI TRAIN 2B INJECTION RCP SEAL INJ FLOW CONTROL SEAL RETURN LINE RELIEF RC VOLUME CONTROL HPI AUX SPRAY THROTTLE RC MAKEUP PUMP TO RCP SEALS BLOCK HPI CROSSOVER ISOLATION HPI CROSSOVER ISOLATION ALT LETDOWN PATH ISOLATION ALT LETDOWN PATH ISOLATION MAKEUP FLOW CONTROL RCP SEAL INJECTION FLOW HPI A TRAIN INJ FLOW TRANSMITTER HPI B TRAIN INJ FLOW TRANSMITTER RCP SEAL INJ FLOW TRANSMITTER RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

Bldg.

FLEL Safety Function TB 775 D

TB 775 D

AB 809 D

AB 822 D

AB 809 D

TB 775 D

RB 808 D

AB 809 D

RB 808 D

AB 809 D

TB 775 D

AB 809 D

TB 796 A, B, C, D, E RB 797 A, B, C AB 809 A, B, C RB 777 B

RB 777 B

AB 809 B

RB 808 B

AB 809 B

AB 771 A,B,C AB 771 A,B,C AB 809 A,B,C AB 809 A,B,C AB 796 B

AB 771 B

AB 809 A,B,C AB 809 C

RB 777 B

AB 809 A,B,C AB 809 A,B,C RB 777 A,B RB 777 A,B AB 809 A,B,C AB 783 B

AB 758 A,B,C AB 758 A,B,C AB 783 B

AB 783 B

Page 12 of 23 Oconee Unit 2, SWEL-1, Base 1'Equipment List Unit Sys Type Number 2

HPI FT 0102 2

HPI FT 0103 2

HPI FT 0104 2

HPI FT 0157 2

HPI FT 0160 2

HPI HX OOOA 2

HPI HX 000B 2

HPI HX 001A 2

HPI HIX 001B 2

HPI LT 0033P1 2

HPI LT 0033P2 2

HPI PL 0409 2

HPI PL 0410 2

HPI PS 0357 2

HPI PU 0001 2

HPI PU 0002 2

HPI PU 0003 2

HPI PU 0005 2

HPI SV 0090 2

HPI SV 0095 2

HPI TK 0001 2

HT TF EP05 2

ICC CA 0001A 2

ICC CA 0001B 2

ICS CA 0001 2

ICS CA 0002 2

ICS CA 0003 2

ICS CA 0004 2

ICS CA 0005 2

ICS CA 0006 2

ICS CA 0007 2

ICS CA 0008 2

ICS CA 0009 2

ICS CA 0010 2

ICS CA 0011 2

ICS CA 0012 2

ICS CA 0013 2

ICS CA 0014 2

ICS PL ASP 2

LP VA 0001 2

LP VA 0002 2

LP VA 0003 2

LP VA 0005 2

LP VA 0006 Description RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

U2 RC MAKE UP PUMP FLOW 2B HPI EMERG FLOW X-OVER LETDOWN COOLER 2A LETDOWN COOLER 2B RC SEAL RETURN COOLER 2A RC SEAL RETURN COOLER 2B LETDOWN STORAGE TANK LEVEL TRAIN 1 LETDOWN STORAGE TANK LEVEL TRAIN 2 REMOTE STARTER ENCLOSURE FOR 2HP-409 REMOTE STARTER ENCLOSURE FOR 2HP-410 LETDOWN FLOW TEMP HIGH INTERLOCK HPI PUMP 2A HPI PUMP 2B HPI PUMP 2C SSF RC MAKEUP PUMP CONTROLS LETDOWN ISOLATION VALVE FOR 2HP-5 RC PUMP SEAL RETURN ISOLATION VLV FOR 2HP-21 LETDOWN STORAGE TANK FEEDER TO 208V TRACE HEATING PNLBD EP05 UNIT 2 ICCM TRAIN A CABINET UNIT 2 ICCM TRAIN B CABINET ICS CABINET 1 ICS CABINET 2 ICS CABINET 3 ICS CABINET 4 ICS CABINET 5 ICS CABINET 6 ICS CABINET 7 ICS CABINET 8 ICS CABINET 9 ICS CABINET 10 ICS CABINET 11 AUXILIARY SYSTEM CABINET #12 AUXILIARY SYSTEM CABINET #13 AUXILIARY SYSTEM CABINET #14 AUX SHUTDOWN PANEL LPI DROPLINE ISOL FROM RCS LPI DROPLINE ISOL FROM RCS LPI HOT LEG SUCTION LPI PUMP 2A SUCTION LPI SUCTION CROSSOVER Bldg.

FLEL Safety Function AB 783 B

AB 783 B

RB 777 B

AB 809 A,B,C RB 777 B

RB 777 B

AB 771 B

AB 796 A,B,C AB 796 A,B,C AB 783 B

AB 758 A,B,C AB 758 A,B,C AB 758 A,B,C RB 777 B

AB 809 B

AB 771 B

AB 771 D

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 822 A, B, C, D, E RB 797 B,D RB 777 D

AB 758 D

Page 13 of 23 Oconee Unit 2, SWEL-1, Bbse 1 Equipment List Unit Sys Type Number 2

LP VA 0007 2

LP VA 0008 2

LP VA 0009 2

LP VA 0010 2

LP VA 0012 2

LP VA 0014 2

LP VA 0017 2

LP VA 0018 2

LP VA 0069 2

LP VA 0126 2

LPI FT 0004P 2

LPI FT 0005P 2

LPI HX OOOA 2

LPI HX 000B 2

LPI PU 0001 2

LPI PU 0002 2

LPI PU 0003 2

LPI TE 0209 2

LPI TE 0210 2

LPI TK 0001 2

LPS FT 0124 2

LPS FT 0125 2

LPS FT 1000 2

LPS FT 1001 2

LPS SV 0202 2

LPS SV 0203 2

LPS SV 1000 2

LPS SV 1001 2

LPS VA 0004 2

LPS VA 0005 2

LPS VA 0018 2

LPS VA 0021 2

LPS VA 0024 2

LPS VA 0139 2

LPS VA 0251 2

LPS VA 0252 2

LPS VA 0516 2

LPS VA 0525 2

MS PL 0017 2

MS PL 0026 2

MS PL 0076 2

MS PL 0079 2

MS PS 0086 2

MS PS 0087 Description LPI SUCTION CROSSOVER LPI PUMP 2B SUCTION 2C LPI PUMP DISCH TO 2A LPI HDR 2C LPI PUMP DISCH TO 2B LPI HDR LPI COOLER 2A ISOLATION LPI COOLER 2B ISOLATION LPI TRAIN 2A INJECTION ISOL LPI TRAIN 2B INJECTION ISOL LPI SWITCHOVER FLOW CONTROL VALVE LPI POST ACCIDENT SAMPLE ISOL LPI TRAIN 2B INJ FLOW TRANS (Powered by ICCM)

LPI TRAIN 2A INJ FLOW TRANS (Powered by ICCM)

LPI COOLER 2A LPI COOLER 2B 2LPI PUMPA 2LPI PUMP B 2LPI PUMP C LPI COOLER 2B OUTLET TEMP (ICS Input)

LPI COOLER 2A OUTLET TEMP (ICS Input)

BWST LPI COOLER 2A FLOW XMTR (2LPSW-251)

LPI COOLER 2B FLOW XMTR (2LPSW-252)

DECAY HEAT COOLER 'A' LPSW FLOW (2LPSW-251)

DECAY HEAT COOLER B LPSW FLOW MOTOR DRIVEN EFDW PUMP MTR 2A COOLING WATER FLOW MOTOR DRIVEN EFDW PUMP MTR 2B COOLING WATER FLOW SOLENOID VALVE FOR 2LPSW-251 SOLENOID VALVE FOR 2LPSW-252 LPI COOLER 2A ISOLATION VALVE LPI COOLER 2B ISOLATION VALVE RBCU 2A RETURN VALVE RBCU 2B RETURN VALVE RBCU 2C RETURN VALVE Nonessential Header Isolation Valve LPI COOLER 2A CONTROL VALVE LPI COOLER 2B CONTROL VALVE EFW PUMP 2A LPSW ISOLATION VALVE EFW PUMP 2B LPSW ISOLATION VALVE REMOTE STARTER ENCLOSURE FOR 2MSRS0017 REMOTE STARTER ENCLOSURE FOR 2MSRS0026 REMOTE STARTER ENCLOSURE FOR 2MSRS0076 REMOTE STARTER ENCLOSURE FOR 2MSRS0079 MAIN STEAM PRESS SWITCH (MS-19)

MAIN STEAM PRESS SWITCH (MS-22)

Bldg.

FLEL Safety Function AB 758 D

AB 758 D

AB 771 D

AB 809 D

AB 758 D

AB 758 A

AB 809 D

AB 771 D

AB 758 D

AB 809 D

AB 771 D

YD 796 A,B,C AB 771 D

AB 771 D

AB 771 B,D AB 771 B,D TB 775 C

TB 775 C

AB 783 D

AB 809 E

TB 775 D

AB 783 D

TB 775 C

TB 796 D

Page 14 of 23 Oconee Unit 2, SW'EL-1, Base 1 Equipment List Unit Sys Type Number 2

MS PS 0088 2

MS PS 0089 2

MS PT 0024P 2

MS PT 0025P 2

MS PT 0026P 2

MS PT 0027P 2

MS PT 1006 2

MS PT 1007 2

MS PT 1008 2

MS PT 1009 2

MS PY' 0042 2

MS SV 0074 2

MS SV 0178 2

MS SV 0179 2

MS SV 0180 2

MS SV 0181 2

MS VA 0001 2

MS VA 0002 2

MS VA 0003 2

MS VA 0004 2

MS VA 0005 2

MS VA 0006 2

MS VA 0007 2

MS VA 0008 2

MS VA 0009 2

MS VA 0010 2

MS VA 0011 2

MS VA 0012 2

MS VA 0013 2

MS VA 0014 2

MS VA 0015 2

MS VA 0016 2

MS VA 0017 2

MS VA 0019 2

MS VA 0022 2

MS VA 0024 2

MS VA 0026 2

MS VA 0028 2

MS VA 0031 2

MS VA 0033 2

MS VA 0035 2

MS VA 0036 2

MS VA 0040 2

MS VA 0043 Description MAIN STEAM PRESS SWITCH (MS-28)

MAIN STEAM PRESS SWITCH (MS-31)

SG 2A PRESSURE SG 2A PRESSURE SG 2B PRESSURE SG 2B PRESSURE AFIS ANALOG CHANNEL 3 - 2A S/G HDR PRESSURE AFIS ANALOG CHANNEL 3-2B S/G HDR PRESSURE AFIS ANALOG CHANNEL 4 - 2A S/G HDR PRESSURE AFIS ANALOG CHANNEL 4 - 2B S/G HDR PRESSURE UNIT 2 UPS (2MSSS0042 - 2MS-87)

TD EFDWP STEAM ADMISSION SOLENIOD FOR 2MS-93 TURB BYPASS CONTROL VLV A SHUTOFF TURB BYPASS CONTROL VLV B SHUTOFF TURB BYPASS CONTROL VLV C SHUTOFF TURB BYPASS CONTROL VLV D SHUTOFF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION FWPT ISOLATION FWPT ISOLATION FWPT 2A STOP VALVE (MS-40/SV12)

FWPT 2B STOP VALVE (MS-43/SV12)

Bldg.

FLEL Safety Function TB 796 D

TB 796 D

RB 825 D

TB 796 D

AB 796 D

TB 775 D

TB 796 D

AB 809 D

TB 796 D

TB 775 D

Page 15 of 23 Oconee' unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

MS VA 0047 2

MS VA 0076 2

MS VA 0077 2

MS VA 0078 2

MS VA 0079 2

MS VA 0080 2

MS VA 0081 2

MS VA 0093 2

MS VA 0095 2

MS VA 0102 2

MS VA 0103 2

MS VA 0104 2

MS VA 0105 2

MS VA 0106 2

MS VA 0107 2

MS VA 0108 2

MS VA 0109 2

MS VA 0112 2

MS VA 0126 2

MS VA 0129 2

MS VA 0173 2

N TK 0003 2

N TK 0004 2

N TK 0005 2

N TK 0006 2

N TK 0007 2

PAM CA 0001 2

PAM LT 0090 2

PAM LT 0091 2

PAM P

0305 2

PPS CA 0001 2

PPS CA 0002 2

PPS CA 0003 2

PPS CA 0004 2

PPS CA 0005 2

PPS CA 0006 2

PPS CA 0007 2

PPS CA 0008 2

PPS CA 0009 2

PPS CA 0010 2

PPS CA 0011 2

PPS CA 0012 2

PPS CA 0013 2

PPS CA 0014 Description MS TO CSAE MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MSTO 2ND STAGE RHTR ISOL MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MS TO 2ND STAGE RHTR ISOL TDEFW MS ISOLATION VALVE TD EFDWP GOVERNOR VALVE TURBINE STOP VALVE # 4 TURBINE STOP VALVE # 3 TURBINE STOP VALVE # 2 TURBINE STOP VALVE # 1 MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MS TO 2ND STAGE RHTR ISOL MS TO AS CONTROL VALVE MS TO AS CONTROL VALVE MS TO 2ND STAGE RHTR ISOL NITROGEN SUPPLY FOR 2FDW-315 & 2FDW-316 NITROGEN SUPPLY FOR 2FDW-315 & 2FDW-316 NITROGEN SUPPLY FOR 2MS-87 NITROGEN SUPPLY FOR 2MS-126 NITROGEN SUPPLY FOR 2MS-129 POST ACCIDENT LIQUID SAMPLING PANEL RB CONTAINMENT WATER LVL TR A RB CONTAINMENT WATER LVL TR B RB CONT WATER LVL IND TR B RPS A/ES Al RPS A/ES Al RPS B/ES BI RPS B/ES BI RPS C/ES C1 RPS C/ES Cl RPS D RPS D ES A2 ES B2 ES C2 ES VOTER ODD ES VOTER ODD ES VOTER EVEN Bldg.

FLEL Safety Function TB 796 D

TB 796 D

TB 775 D

TB 796 D

AB 838 D

TB 796 D

AB 771 A

RB 777 A

AB 822 A

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E Page 16 of 23 Oc-hee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

PPS CA 0015 2

PPS CA 0016 2

PPS CA 0017 2

PPS CA 0018 2

RBC AH 0020A 2

RBC AH 0020B 2

RBC AH 0020C 2

RBC HX 000A 2

RBC HX OOOAAUX 2

RBC HX 000B 2

RBC HX OOOBAUX 2

RBC HX O0OC 2

RBC HX OOCAUX 2

RBC HX O0ODAUX 2

RC LT 0004P1 2

RC LT 0004P3 2

RC LT 0123 2

RC LT 0124 2

RC LT 0125 2

RC LT 0126 2

RC PL 2RC1 2

RC PT 0017P 2

RC PT 0021P 2

RC PT 0022P 2

RC PT 0023P 2

RC PT 0166P 2

RC PT 0225 2

RC PT 0226 2

RC PT 0244 2

RC PT 0245 2

RC RD 0005B 2

RC RD 0006A 2

RC RD 0007B 2

RC RD 0008A 2

RC RD 0043A 2

RC RD 0043B 2

RC RD 0084A 2

RC RD 0084B 2

RC RD 0085A 2

RC RD 0085B 2

RC SV 0036 2

RC SV 0229 2

RC VA 0001 2

RC VA 0003 Description ES VOTER EVEN RPS E/MSI ES STATUS ODD ES STATUS EVEN RBCU FAN 2A RBCU FAN 2B RBCU FAN 2C RB COOLING UNIT 2A AUX RBCU A RB COOLING UNIT 2B AUX RBCU B RB COOLING UNIT 2C AUX RBCU C AUX RBCU D PRZ LEVEL TRANSMITTER PRZ LEVEL TRANSMITTER 2A RCS HOT LEG LVL (ICCM A) 2B RCS HOT LEG LVL (ICCM B)

RV HEAD LEVEL (ICCM A)

RV HEAD LEVEL (ICCM B) 2RC-1 SPRAY VALVE CONTROL BOX RCS LOOP A PRESS TRANS RC PRESS XMTR (ES CH A)

RC PRESS XMTR (ES CH B)

RC PRESS XMTR (ES CH C)

RCS LOOP B PRESS TRANS U2 RC LOOP A PRESSURE U2 RC LOOP B PRESSURE WR RCS PRESS TRAIN A (ICCM)

WR RCS PRESS TRAIN B (ICCM)

A2 COLD LEG RTD Al COLD LEG RTD 82 COLD LEG RTD BI COLD LEG RTD PRZ RTD PRZ RTD REACTOR OUTLET LOOP 2A A HOT LEG WIDE RANGE RTD REACTOR OUTLET LOOP 2B B HOT LEG WIDE RANGE RTD RC SAMPLE LINE ISOLATION VALVE (2RC7)

CONTROLS POST ACC. SAM. VLV(2RC-179)

PRESSURIZER SPRAY VALVE PRZ SPRAY ISOLATION Bldg.

FLEL Safety Function AB 822 A,B,C, D,E AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 822 A, B,C, D,E RB 825 E

RB 825 E

RB 817 E

RB 844 E

RB 817 E

RB 861 E

RB 817 E

RB 844 E

RB 797 B,C' RB 797 B,C AB 809 B

AB 809 B

AB 796 B

RB 825 C

RB 825 B

RB 825 C

RB 817 C,D RB 825 C,D AB 809 C,D AB 809 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 808 B,C RB 808 B,C RB 844 C,D RB 844 C,D RB 844 C,D RB 844 C,D AB 822 B

AB 758 A

RB 853 C

Page 17 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number 2

RC VA 0004 2

RC VA 0005 2

RC VA 0006 2

RC VA 0007 2

RC VA 0066 2

RC VA 0067 2

RC VA 0068 2

RC VA 0159 2

RC VA 0160 2

RC VA 0162 2

RC VA 0163 2

RC VA 0164 2

RC VA 0165 2

RC VA 0179 2

RPS CA 0001 2

RPS CA Al 2

RPS CA A2 2

RPS CA B1 2

RPS CA B2 2

RPS CA C1 2

RPS CA C2 2

RPS CA D1 2

RPS CA D2 2

RPS CA El 2

SC HX OOOA 2

SC HX 000B 2

SF TK 0002 2

SF VA 0082 2

SF VA 0097 2

SSW FT 1011 2

SSW FT 1012 2

SSW FT 1013 2

SSW VA 0109 2

SSW VA 0119 2

SSW VA 0129 2

SSW VA 0139 2

SSW VA 0155 2

SSW VA 0156 2

SSW VA 0157 2

SYD BK PCB24 2

SYD BK PCB26 2

SYD BK PCB27 2

TO PU 0022 2

TO TK 0002 Description PRZ PORV BLOCK VALVE PRZ STEAM SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ PORV PRZ CODE SAFETY PRZ CODE SAFETY RV VENT ISOLATION RV VENT ISOLATION POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE THROTTLE REACTOR PROTECTION SYSTEM CABINETS U2 RPS CABINET 2A1 RPS CABINET 2A2 RPS CABINET 2B1 RPS CABINET 2B2 RPS CABINET 2C1 RPS CABINET 2C2 RPS CABINET 2D1 RPS CABINET 2D2 RPS CABINET 2E1 GEN WATER COOLER 2A GEN WATER COOLER 2B INCORE INST HANDLING TANK SPENT FUEL POOL TO RC MAKEUP PUMP BLOCK SPENT FUEL POOL TO RC MAKEUP PUMP BLOCK ESV PUMP 2A SEAL WATER FLOW TRANSMITTER ESV PUMP 2B SEAL WATER FLOW TRANSMITTER ESV PUMP 2C SEAL WATER FLOW TRANSMITTER CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve CCWP Seal Water Reg. Valve ESV Pump Seal Supply Valve ESV Pump Seal Supply Valve ESV Pump Seal Supply Valve 230KV AC POWER CIRCUIT BREAKER 24 (PCB-24) 230KV AC POWER CIRCUIT BREAKER 26 (PCB-26) 230KV AC POWER CIRCUIT BREAKER 27 (PCB-27)

EFWPT AUX OIL PUMP EFW PUMP TURBINE OIL TANK Bldg.

FLEL Safety Function RB 853 B,C RB 808 B

RB 808 B

AB 809 B

RB 853 B,C RB 853 B,C RB 853 B,C RB 844 A,B,C RB 844 A,B,C RB 777 A,B RB 777 A

AB 758 A

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 775 D

TB 775 D

RB 797 A,C,D RB 777 B

RB 777 B

ESV 797 D

INT 796 D

ESV 797 D

SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 775 C

TB 775 C

Page 18 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys 2

TO 2

V KO ELK KO ELK KO ELK KO ELK KO ELK KO ELK KO ELK KO ELK KO ELK KO ELK K1 AG K1 CO K1 CO K1 CO K1 CO K1 CO KI ELK KI ELK K1 ELK K1 ELK K1 ELK K1 ELK KI ELK K1 ELK K1 ELK KI ELK K1 ELK K1 ELK K1 ELK K1 ELK KI ELK K1 ELK KI ELK K1 ELK KI ELK K1 ELK KI ELK K1 ELK K1 ELK Type Number TN TBEH2A TN TBEH2B VA 0059 VA 0145 AE 0001 BD CB05 BD CB06 BS OHXPHASE BS OHYPHASE BS OHZPHASE PL EB5 PL EB6 SX CX TF 0001 TF CX TK 0001 PS 063F SV 20F1 SV 20F2 SV 20P1 SV

.20P2 BA KB1 BC KC1 BD CB01 BD CB02 BD CB03 BD CB04 BS GENACB13 BS MTFACB1 CA 0103 CA 0127 CA 1LC1 CA 1LC2 CA 1LC3 CA 1MTC1 CA 1MTC2 MX 1XA PL IDA PL 1ECI PL 1EC2 PL 1EC3 PL 1EC4 PL 1EC5 PL 1TGP1 Description FWPT2A MAIN OILTANK TERM BOX EH FWPT 2B MAIN OIL TANK TERM BOX EH EFW PUMP TURB OIL PR VALVE 2MS-95 LUBE OIL SUPPLY SOLENOID EM STEAM AIR EJECTOR (SAE)

CONTROL BOARD 05 CONTROL BOARD 06 KHU OVERHEAD BUS X PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Y PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Z PHASE TO 230 KV SWITCHYARD ELEC BOARD 05 ELEC BOARD 06 KEOWEE XFMR CX DISC SW MAIN TRANSFORMER TRANSFORMER CX AIR RECEIVER TANK GEN 1 C02 RELEASE PRESS SWITCH (63F/PS2_1 GEN 1 C02 RELEASE VALVE GEN 1 C02 RELEASE VALVE GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

BATT BANK 1 BATT CHARGER 1 (KC-1)

CONTROL BOARD 01 CONTROL BOARD 02 CONTROL BOARD 03 CONTROL BOARD 04 13.8 KV BUS FROM GEN #1 TO ACB1 AND ACB3 13.8 KV BUS FROM ACB1 TO MAIN XFMR TERMINAL BOX 103 (WIRING ONLY)

TERMINAL BOX 127 LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 Ul MISC TERM CAB 1MTC1 Ul MISC TERM CAB 1MTC2 600V AC MCC 1XA 125V DC DIST CENTER IDA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 1)

Bldg.

FLEL TB 775 TB 775 TB 775 TB 775 TB 775 KEO 688 KEO 688 KEO 702 KEO 702 KEO 702 KEO 688 KEO 688 KEO 702 KEO 702 KEO 702 KEO 683 KEO 683 KEO 683 KEO 683 KEO 702 KEO 702 KEO 675 KEO 675 KEO 688 KEO 688 KEO 688 KEO 688 KEO 702 KEO 702 KEO 675 KEO 683 KEO 688 KEO 688 KEO 688 KEO 675 KEO 675 KEO 683 KEO 675 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 Safety Function D

D C

C D

A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 19 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number K1 ELK PL EB1 K1 ELK PL EB2 K1 ELK PL EB3 KI ELK PL EB4 K1 ELK PL EFBP1 K1 ELK PL GBP K1 ELK PL KA K1 ELK PL MODP KI ELK SH 1X K1 ELK SX 1E K1 ELK SX ix KI ELK TF 1E K1 ELK TF lx K1 ELK TN 0101 K1 ELK TN 0102 Ki ELK TN 0109 K1 ELK TN 0113 KI ELK TN 0121 K1 ELK TN 0123 K1 GA HX 0001 K1 GA HX 0002 K1 GA HX 0003 K1 GA HX 0004 K1 GA HX 0005 K1 GA HX 0006 K1 GBO HX 0001 K1 GBO LS 63TA K1 GBO LS 63TB K1 GBO PU 088A K1 GBO PU 088D Ki GCS CA SS1A K1 GCS CA SSlB K1 GEN GN 0001 KI GEN PC GPC1 K1 GEN PL BPC1 K1 GEN PL NEUCUB KI HPO HX 0001 K1 HPO HX 0002 KI HPO HX 0003 KI HPO HX 0004 KI HPO HX 0005 KI HPO HX 0006 K1 HPO HX 0007 K1 HPO HX 0008 Description ELEC BOARD 01 ELEC BOARD 02 ELEC BOARD 03 ELEC BOARD 04 EMERGENCY FEEDER BREAKER NO. 1 GENERATOR BREAKER PANEL 120V AC PPB KA MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR lX Ul XFMR 1E DISC SW TRANSFORMER 1X DISCONNECT SWITCH EXCITATION TRANSFORMER 1E 600V AC SWGR IX TRANSFORMER TERMINAL BOX 101 TERMINAL BOX 102 TERMINAL BOX 109 TERMINAL BOX 113 (WIRING ONLY)

TERMINAL BOX 121 (WIRING ONLY)

TERMINAL BOX 123 (WIRING ONLY)

GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLTO001)

TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLTO002)

AC BRNG OIL PUMP (88A)

DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SSIA GOVERNOR SPEED CONTOL CABINET SSIB KEOWEE UNIT 1 GENERATOR GEN POT CUBICLE UNIT 1 (1 PER PHASE)

BUS POT CUBICLE UNIT 1 (1 PER PHASE)

NEUTRAL CUBICLE 1 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER Bldg.

FLEL Safety Function KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 695 A, B, C, D, E KEO 667 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 667 A, B,C,D,E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E KEO 667 A, B, C, D, E Page 20 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number K1 HPO LS 63BLH K1 HPO LS 63BLL K1 HPO PU 88HA K1 HPO PU 88HD KI MT PS 0009 KI MT TR 0001 K1 OG TK 0001 K1 OG TK 0002 K1 OG TK 0003 Ki PMG DT MPU1A KI PMG DT MPU1B KI PMG DT MPU1C K1 TS LS 63SA Ki TS LS 63SB K1 TS PU 88SA KI TS PU 88SD KI WL VA 0011 K2 AG TK 0001 K2 CO PS 063F K2 CO SV 20F3 K2 CO SV 20F4 K2 CO SV 20P3 K2 CO SV 20P4 K2 ELK BA KB2 K2 ELK BC KC2 K2 ELK BD CB07 K2 ELK BD CB08 K2 ELK BD CB09 K2 ELK BD CB1O K2 ELK BS GENACB24 K2 ELK BS MTFACB2 K2 ELK CA 2LCl K2 ELK CA 2LC2 K2 ELK CA 2LC3 K2 ELK CA 2MTC1 K2 ELK CA 2MTC2 K2 ELK MX 2XA K2 ELK PL 2DA K2 ELK PL 2EC1 K2 ELK PL 2EC2 K2 ELK PL 2EC3 K2 ELK PL 2EC4 K2 ELK PL 2EC5 K2 ELK PL 2TGP1 Description LEVEL SWITCH (1HPOLS0001)

LEVEL SWITCH (1HPOLS0002)

AC GEN HP LIFT PUMP (88HA)

DC GEN HP LIFT PUMP (88HD)

TURBINE PIT PRESS SWITCH KEOWEE UNIT 1 TURBINE GOVERNOR ACTUATOR GOVERNOR OIL SUMP TANK GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A SPEED CONTROL MAGNETIC PICKUP 1B SPEED CONTROL MAGNETIC PICKUP 1C TURB SUMP LEVEL SWITCH (ITSLSO001)

TURB SUMP LEVEL SWITCH (1TSLS0002)

AC SUMP PUMP (88SA)

DC SUMP PUMP (88SD)

GEN COOL ISOL VALVE (1WL-11)

AIR RECEIVER TANK GEN 2 C02 RELEASE PRESS SWITCH (63F/PS2_2)

GEN 2 C02 RELEASE VALVE GEN 2 C02 RELEASE VALVE GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

BATT BANK 2 BATT CHARGER 2 (KC-2)

CONTROL BOARD 07 CONTROL BOARD 08 CONTROL BOARD 09 CONTROL BOARD 10 13.8 KV BUS FROM GEN #2 TO ACB2 AND ACB4 13.8 KV BUS FROM ACB2 TO MAIN XFMR LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 U2 MISC TERM CAB 2MTC1 U2 MISC TERM CAB 2MTC2 600V AC MCC 2XA 125V DC DIST CENTER 2DA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 2)

Bldg.

FLEL KEO 683 KEO 683 KEO 675 KEO 675 KEO 675 KEO 702 KEO 683 KEO 683 KEO 683 KEO 667 KEO 667 KEO 667 KEO 675 KEO 675 KEO 675 KEO 675 KEO 683 KEO 683 KEO 683 KEO 683 KEO 683 KEO 702 KEO 702 KEO 675 KEO 675 KEO 688 KEO 688 KEO 688 KEO 688 KEO 702 KEO 702 KEO 688 KEO 688 KEO 688 KEO 675 KEO 675 KEO 683 KEO 675 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 21 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number K2 ELK PL EB1O K2 ELK PL EB7 K2 ELK PL EB8 K2 ELK PL EB9 K2 ELK PL EFBP2 K2 ELK PL GBP K2 ELK PL KB K2 ELK PL MODP K2 ELK SH 2X K2 ELK SX 2E K2 ELK SX 2X K2 ELK TF 2E K2 ELK TF 2X K2 ELK TN 0201 K2 ELK TN 0202 K2 ELK TN 0203 K2 ELK TN 0227 K2 GA HX 0001 K2 GA HX 0002 K2 GA HX 0003 K2 GA HX 0004 K2 GA HX 0005 K2 GA HX 0006 K2 GBO HX 0001 K2 GBO LS 63TA K2 GBO LS 63TB K2 GBO PU 088A K2 GBO PU 088D K2 GCS CA SS2A K2 GCS CA SS2B K2 GEN GN 0001 K2 GEN PC GPC2 K2 GEN PL BPC2 K2 GEN PL NEUCUB K2 HPO HX 0001 K2 HPO HX 0002 K2 HPO HX 0003 K2 HPO HX 0004 K2 HPO HX 0005 K2 HPO HX 0006 K2 HPO HX 0007 K2 HPO HX 0008 K2 HPO LS 63BLH K2 HPO LS 63BLL Description ELEC BOARD 10 ELEC BOARD 07 ELEC BOARD 08 ELEC BOARD 09 EMERGENCY FEEDER BREAKER NO. 2 GENERATOR BREAKER PANEL 120V AC PPB KB MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR 2X U2 XFMR 2E DISC SW TRANSFORMER 2X DISCONNECT SWITCH EXCTIATION TRANSFORMER 2E 13.8KV/600V AC SWGR 2X TRANSFORMER TERM BOX TB-201 TERM BOX TB-202 TERM BOX TB-203 TERM BOX TB-227 GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLT0001)

TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLT0002)

AC BRNG OIL PUMP (88A)

DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SS2A GOVERNOR SPEED CONTOL CABINET SS2B KEOWEE UNIT 2 GENERATOR GEN POT CUBICLE UNIT 2 (1 PER PHASE)

BUS POT CUBICLE UNIT 2 (1 PER PHASE)

NEUTRAL CUBICLE 2 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER LEVEL SWITCH (2HPOLSO001)

LEVEL SWITCH (2HPOLSO002)

Bldg.

FLEL KEO 688 KEO 688 KEO 688 KEO 688 KEO 702 KEO 702 KEO 683 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 KEO 683 KEO 675 KEO 683 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 675 KEO 675 KEO 667 KEO 667 KEO 667 KEO 667 KEO 683 KEO 702 KEO 702 KEO 683 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 683 KEO 683 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 22 of 23 Oconee Unit 2, SWEL-1, Base 1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function K2 HPO PU 88HA AC GEN HP LIFT PUMP (88HA)

KEO 675 A, B, C, D, E K2 HPO PU 88HD DC GEN HP LIFT PUMP (88HD)

KEO 675 A, B, C, D, E K2 MT PS 0009 TURB PIT PRESS SWITCH KEO 675 A, B, C, D, E K2 MT TR 0001 KEOWEE UNIT 2 TURBINE KEO 683 A, B, C, D, E K2 OG TK 0001 GOVERNOR ACTUATOR KEO 683 A, B, C, D, E K2 OG TK 0002 GOVERNOR OIL SUMP TANK KEO 683 A, B, C, D, E K2 OG TK 0003 GOVERNOR OIL PRESS TANK KEO 683 A, B, C, D, E K2 PMG DT MPUIA SPEED CONTROL MAGNETIC PICKUP 1A KEO 667 A, B, C, D, E K2 PMG DT MPUIB SPEED CONTROL MAGNETIC PICKUP lB KEO 667 A, B, C, D, E K2 PMG DT MPU1C SPEED CONTROL MAGNETIC PICKUP 1C KEO 667 A, B, C, D, E K2 TS LS 63SA TURB SUMP LEVEL SWITCH (2TSLSO001)

KEO 675 A, B, C, D, E K2 TS LS 63SB TURB SUMP LEVEL SWITCH (2TSLS0002)

KEO 675 A, B, C, D, E K2 TS PU 88SA AC SUMP PUMP (88SA)

KEO 675 A, B, C, D, E K2 TS PU 88SD DC SUMP PUMP (88SD)

KEO 675 A, B, C, D, E K2 WL VA 0011 GEN COOL ISOL VALVE (2WL-11)

KEO 683 A, B, C, D, E Page 23 of 23 Oconee Unit 2, SWEL-1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 0

DA TK 000C DIESEL STARTING AIR TANK C SSF 777 B,C 0

EL CA SYTC1 SWYD TERMINAL CABINET 01 SYD 770 A, B, C, D, E 0

EL SH BiTOS SK1 CT4 TO STDBY BUS 1 FDR BKR SECTION BH1 796 A, B, C, D, E 0

EL TF OCT4 XFMR CT-4 BH3 796 A, B, C, D, E 0

FO TK 0003 SSF DIESEL OIL DAY TANK SSF 777 B,C 0

SSF BA DCSF DCSF SSF NORMAL BATTERY SSF 777 A, B, C, D, E 0

SSF MX XSF MCC XSF(600V)

SSF 777 A, B, C, D, E 0

SSF SH OTS1 OTS1 SSF ESSENTIAL SWGR 4160V SSF 777 A, B, C, D, E 0

SYD BC SY2 230KV SWYD BATTERY CHARGER SY2 SYD 770 A, B, C, D, E 0

SYD BD RB02 SWITCHYARD RELAY BOARD RB02 SYD 770 A, B, C, D, E 0

SYD BD RF17 SWITCHYARD RELAY BOARD RF17 SYD 770 A, B, C, D, E 0

SYD BD SRF17 SWITCHYARD RELAY BOARD SRF17 SYD 770 A, B, C, D, E 0

SYD BK PCB08 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08)

SYD 770 A, B, C, D, E 0

SYD PL DYC DC PANELBOARD C SYD 770 A, B, C, D, E 0

SYD PL DYE DC PANELBOARD E SYD 770 A, B, C, D, E 0

SYD PL SYDC1 SWITCHYARD DISTRIBUTION CENTER 1 SYD 770 A, B, C, D, E 0

SYD TF RBPT RED BUS POTENTIAL TRANSFORMER (EGPS)

SYD 770 A, B, C, D, E 0

VS AH 0042 AHU 0-42 HEATING AND A/C SSF BUILDING SSF 817 B,C 0

VS AH 0044EX6 SSF ON LINE EXHAUST FAN & MOTOR SSF 817 B,C 0

VS DA CD01 SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF 817 B,C 0

VS PS SSFPS03 SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS TT SSFCT2 HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

SSF 822 A, B, C, D, E 2

BAG BD 2AB1 CONTROL BOARD 2AB1 AB 822 A, B, C, D, E 2

BAG BD 2UB1 CONTROL BOARD 2UB1 AB 822 A, B, C, D, E 2

BS PS 0021 RB PRESS HI (ES CH 8) TRAIN B AB 809 E

2 BS VA 0001 RB SPRAY HEADER 2A ISOLATION AB 809 E

2 C

DM 000B POLISHING DEMINERALIZER 2B TB 775 D

2 C

LT 0015A UST 2B LEVEL TB 838 D

2 C

PS 0036 UST MAKEUP LEVEL CONTROL (PS-36)

TB 838 D

2 C

PU 0020 HOLDING PUMP 2B TB 775 D

2 C

TK 000C UPPER SURGE TANK DOME TB 838 D

2 C

VA 0192 HOTWELL NORMAL MAKEUP CONTROL TB 775 D

2 CF TK OOOA CORE FLOOD TANK 2A RB 797 B, D 2

CRD CA CC1 DCRDCS CONTROL CABINET CC-1 AB 809 A

2 CRD CA CC6 DCRDCS CONTROL CABINET CC-6 AB 809 A

2 EHC CA EHC1 EHCCAB2EHC1 AB 809 D

2 EL BA 2CA CONTROL BATT 2CA AB 809 A, B, C, D, E 2

EL BA 2PA PWR BATT 2PA TB 796 A, B, C, D, E 2

EL BC 2CA CONTROL BATT CHGR 2CA AB 796 A, B, C, D, E 2

EL BC 2PA PWR BATT CHGR 2PA TB 796 A, B, C, D, E 2

EL BI 2DIA 120V STATIC INV 2DIA AB 796 A, B, C, D, E 2

EL BK 2A 240/120V 2A REGULATOR OUTPUT BKR AB 796 A, B, C, D, E 2

EL CA 2AT3 AREA TERM CAB 2AT3 AB 809 A, B, C, D, E 2

EL CA 2EF6 ELECTRICAL BOARD 2EF6 AB 822 A, B, C, D, E Page 1 of 3 Oconee Unit 2, SWEL-1 Equipment List Description Unit Sys Type Number 2

2 2

2 EL DI EL IR EL LX EL LX EL MX EL MX EL MX EL MX EL MX EL MX EL MX EL PL EL PL EL PL EL PL EL PL EL PL EL PL EL SH EL SH EL SX EL TF EL TF EL TN ES CA ES CA ES CA ESV PU ESV TF ESV TK FD FT FD LT FD PS FD VA FD VA HP VA HPI FT HPI FT HPI HX HPI PL HPI PS HPI PU HPI PU ICS CA 2ADA MC12 2X1 2X2 2XA 2XC 2XJ 2XL 2XO 2XSF 2XSFA 2DCA 2EPSLP1 2KESP 2SKL 2SKP HBP MFBMRP 2TCO1 BIT12 2KUBKUP 2B 2XC 1001 0003 2ESTC2 2ESTC3 0002 0001 0002 0130 0066 1011 0218 0316 0031 0102 0157 OOOA 0409 0357 0002 0005 0008 ISOL DIODE ASSEMBLY 2ADA INSTRUMENT RACK 2MC-12 600V LC 2X01 600V LC 2X02 MCC 2XA MCC 2XC 600V MCC 2XJ MCC 2XL MCC 2XO MCC 2XSF(600V)

MCC 2XSF(208V) 125V DC 2DCA EPSL PANEL 2EPSLP1 KEOWEE EM START PANEL 120V PPB 2SKL 240/120V PPB 2SKP UNIT 2 HEATER BLANKETING PANEL MAIN FDR BUS MONITOR RLY PANEL 2TC BUS 1 INCOMING FDR BKR SECTION BIT INSTRUMENTATION SECTION BACKUP TRANSFER SWITCH 2KU XFMR 2B (600V TO 240V)

XFMR 2XC (600V TO 208V)

TERMINAL BOX TB-1001 ENGINEERED SAFEGUARDS ANALOG CABINET 3 (CHANNEL C)

ESFAS EVEN CH TERM CAB 2ESTC2 ESFAS EVEN/ODD TERM CAB 2ESTC3 ESV Pump 2B 600/240/120V 2SKM POWER TRANSFORMER ESV Receiver Tank 2B 2B EFW HEADER FLOW S/G 2A LEVEL FWP 2A DISCH HDR PRESS SWITCH PRESS REG TD PUMP SEALS MDEFW PUMP 2B ISOLATION RCP SEAL INJ FLOW CONTROL RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

U2 RC MAKE UP PUMP FLOW LETDOWN COOLER 2A REMOTE STARTER ENCLOSURE FOR 2HP-409 LETDOWN FLOW TEMP HIGH INTERLOCK HPI PUMP 2B SSF RC MAKEUP PUMP ICS CABINET 8 Bldg.

FLEL Safety Function AB 796 A, B, C, D, E TB 796 D

TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 D

TB 775 D

AB 809 D

AB 771 A, B, C AB 796 A, B, C, D, E SSF 817 A, B, C, D, E SSF 817 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E ESV 797 A, B, C, D, E TB 822 D

AB 809 A, B, C, D, E TB 796 A, B, C, D, E BH1 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 775 A, B, C, D, E TB 796 D

AB 822 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B,C, D, E ESV 797 D

ESV 797 D

AB 783 D

RB 777 D

TB 775 D

AB 809 D

AB 796 B

AB 783 B

RB 777 B

AB 796 A,B,C AB 783 B

AB 758 A,B,C RB 777 B

AB 822 A, B, C, D, E Page 2 of 3

Unit Sys Type Number 2

LP VA 0003 2

LP VA 0012 2

LPI FT 0004P 2

LPI PU 0003 2

LPI TE 0209 2

LPS SV 0203 2

LPS SV 1000 2

LPS VA 0004 2

MS PT 1006 2

MS VA 0016 2

MS VA 0040 2

MS VA 0093 2

N TK 0004 2

N TK 0005 2

RBC HX OOOAAUX 2

RC LT 0123 2

RC PT 0166P 2

RC PT 0225 2

RC RD 0043A 2

RC RD 0084A 2

RC SV 0229 2

RC VA 0005 2

RPS CA A2 2

SSW VA 0139 2

SSW VA 0155 2

TO PU 0022 KO ELK TF 0001 K1 CO SV 20P2 K1 ELK BA KB1 KI ELK BD CB01 K1 ELK CA 1MTC1 K1 ELK MX IXA K1 ELK TN 0109 KI OG TK 0003 K1 PM DT MPU1A KI WL VA 0011 K2 ELK BC KC2 K2 ELK CA 2MTC1 K2 ELK PL 2DA K2 ELK TN 0203 K2 GA HX 0003 K2 HPO PU 88HA K2 TS LS 63SB Oconee Unit 2, SWEL-1 Equilpiment List Description LPI HOT LEG SUCTION LPI COOLER 2A ISOLATION LPI TRAIN 2B INJ FLOW TRANS (Powered by ICCM) 2LPI PUMP C LPI COOLER 2B OUTLET TEMP (ICS Input)

MOTOR DRIVEN EFDW PUMP MTR 2B COOLING WATER FLOW SOLENOID VALVE FOR 2LPSW-251 LPI COOLER 2A ISOLATION VALVE AFIS ANALOG CHANNEL 3 - 2A S/G HDR PRESSURE MAIN STEAM SAFETY RELIEF FWPT 2A STOP VALVE (MS-40/SV12)

TDEFW MS ISOLATION VALVE NITROGEN SUPPLY FOR 2FDW-315 & 2FDW-316 NITROGEN SUPPLY FOR 2MS-87 AUX RBCU A 2A RCS HOT LEG LVL (ICCM A)

RCS LOOP B PRESS TRANS U2 RC LOOP A PRESSURE PRZ RTD REACTOR OUTLET LOOP 2A CONTROLS POST ACC. SAM. VLV(2RC-179)

PRZ STEAM SAMPLE ISOLATION RPS CABINET 2A2 CCWP Seal Water Reg. Valve ESV Pump Seal Supply Valve EFWPT AUX OIL PUMP MAIN TRANSFORMER GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

BATT BANK 1 CONTROL BOARD 01 Ul MISC TERM CAB 1MTC1 600V AC MCC 1XA TERMINAL BOX 109 GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A GEN COOL ISOL VALVE (1WL-11)

BATT CHARGER 2 (KC-2)

U2 MISC TERM CAB 2MTC1 125V DC DIST CENTER 2DA TERM BOX TB-203 GEN AIR COOLER 3 AC GEN HP LIFT PUMP (88HA)

TURB SUMP LEVEL SWITCH (2TSLS0002)

Bldg.

FLEL Safety Function AB 758 D

AB 771 D

AB 809 D

AB 758 D

AB 809 D

TB 775 C

AB 783 D

TB 796 D

AB 809 D

TB 775 D

AB 838 D

TB 796 D

RB 844 E

AB 809 B

RB 825 C

RB 817 C,D RB 808 B,C RB 844 C,D AB 758 A

RB 808 B

AB 822 A, B, C, D, E INT 796 D

ESV 797 D

TB 775 C

KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 675 A, B, C, D, E KEO 688 A, B, C, D, E KEO 675 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 667 A, B, C, D, E KEO 683 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 667 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E Page 3 of 3 Oconee Unit 2, SWEL-2, Base-2 and Rapid Drawdown List Safety EQO. ID Description Sys EOQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool OSFPU0001 ASF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0002 B SF Pump SF Pump Building T-73 783' 9" 218 Cooling BWST Recirculation 06/Vertical Aux.

SF Pool OSFPU0004 Pump SF Pump Building T-74 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0006 C SF Pump SF Pump Building T-73 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOA A SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOB B SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOC C SF Cooler SF Exchanger Building T-73 783' 9" 218 Cooling 21/Tanks Heat Aux SF Pool OSFFLOOOA A SF Filter SF Exchanger Building 783' 219 Cooling 21/Tanks Heat Aux SF Pool OSFFLOOOB B SF Filter SF Exchanger Building 783' 219 Cooling 21/Tanks Heat Aux SF Pool OSFDMOO01 SF Demin SF Exchanger Building 783' 219 Cooling Page 1 of 1 Oconee Unit 2, SWEL-2 List Safety EQ. ID Description Sys EQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool OSFPU0001 A SF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0002 B SF Pump SF Pump Building T-73 783' 9" 218 Cooling 05/Horizonal Aux.

SF Pool OSFPU0006 C SF Pump SF Pump Building T-73 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOA A SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool OSFHXOOOB B SF Cooler SF Exchanger Building T-74 783' 9" 218 Cooling 21/Heat Aux.

SF Pool 0SFHX000C C SF Cooler SF Exchanger Building T-73 783' 9" 218 Cooling Page 1 of 1

Oconee's Seismic Walkdown Information Requested by NRC's March 12, 2012, 10CFR 50.54(f) Letter November 27, 2012 Unit 3 Seismic Walkdown Report (NRC 50.54 (f) NTTF Recommendation 2.3) Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Executive Summary Electric Power Research Institute (EPRI) Report 1025286, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task.Force Recommendation 2.3: Seismic was issued in June 2012. This Document provides guidance and procedures to perform seismic walkdowns as required by the U.S. Nuclear Regulatory Commission's (NRC's) 50.54(f) letter regarding Near-Term Task Force (NTTF) Recommendation 2.3: Seismic. The EPRI guidance covers selection of personnel; selection of a sample of structures, systems, and components (SSCs) that represent diversity of component types and assures inclusion of components from critical systems / functions; conduct of the walkdowns; evaluation of potentially adverse conditions against the plant seismic licensing basis; and reporting requirements. It also includes check lists to be used by the Seismic Walkdown Engineers (SWEs) in performing the seismic walkdowns and walk-bys. Duke Energy committed to implement resolution of Near-Term Task Force (NTTF) Recommendation 2.3: Seismic using EPRI Report 1025286 in a letter to the NRC dated 7/9/2012.

1. Seismic Licensing Basis The seismic design basis for SSCs at Oconee nuclear station are defined in Section 3.7 of the UFSAR. Due to the vintage of Oconee nuclear station, some seismic terminology is not consistent with current terminology. The Operating Basis earthquake (OBE) is also referred to as the Design Basis earthquake (DBE) and the Safe Shutdown earthquake (SSE) is also referred to as the Maximum Hypothetical Earthquake (MHE).

1.1. Response Spectra The seismic spectrum response curves for Oconee were generated by the time history technique of seismic analysis. The sample earthquake utilized is that recorded at El Centro, California, N-S, May 18, 1940. The Peak Ground Acceleration (PGA) for the Design Basis earthquake (DBE) is 0.05g. The PGA for the Maximum Hypothetical earthquake (MHE) for Class 1 Structures founded on rock is 0.1g. The PGA for the Maximum Hypothetical Earthquake (MHE) for Class 1 Structures founded on overburden is 0.15g.

1.2. Seismic Qualification 1.2.1. Seismic Qualification of Safety-Related Mechanical Equipment When the response spectra at each elevation in the building have been determined, the G-loadings imposed on a component may then be determined. These loads are evaluated by the equipment supplier and in the case of complex components such as heat exchangers, the design calculations performed by the supplier are reviewed by B&W Engineering or Duke Energy, as applicable. The supplier has the freedom to use either of two alternate analytical methods to evaluate the equipment or he may choose to test it. Components maybe tested by either shaker or impact tests or a certification of the test results are required. In a few cases, a manufacturer's certification that the equipment would withstand seismic conditions is acceptable based on tests of similar equipment, an example of this would be similar type pumps. Analytically the evaluation can be made by calculating the natural frequency of the component, entering the appropriate damping curve and determining the amplification factor from the response spectrum curve. The equipment is then evaluated using these G-loadings. As an alternative, the component may be evaluated without calculating the natural frequency by using the peak amplification factor from the appropriate damping curve to determine Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 2 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 the equipment loads. This latter approach is conservative. Special attention is given to foundation and nozzle loadings for equipment such as tanks, pumps, heat exchangers, demineralizers and filters. Loads imposed by connecting piping on a given component are included and in some cases, component nozzles have had to be reinforced to accommodate these loads. Components which are most likely to require special reinforcement due to seismic loads, are long, horizontal, saddle mounted tanks, vertical tanks mounted on legs, and stacked heat exchangers. These have all been evaluated and appropriately designed for the seismic conditions. An alternate method of seismic qualification for mechanical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Procedure (GIP) for Seismic Verification of Nuclear Plant Equipment, Revision 3A, developed by the Seismic Qualification Utility Group (SQUG). This method is also commonly known as SQUG.

1.2.2.

Seismic Qualification of Safety-Related Electrical Equipment The seismic design basis for instrumentation and electrical equipment is that the electrical devices considered essential in performing Reactor Protection and Engineered Safeguards functions and in providing emergency power shall be designed to assure that they will not lose their capability to perform intended safety functions during and following the Safe Shutdown Earthquake (SSE). This basic criteria has remained unchanged since the issuance of the operating license; however, the seismic qualification techniques and documentation requirements for various plant modifications have in many instances followed the advances in the state of the art.

The seismic adequacy of all electrical cable tray supports is established by the methods and criteria established for cable tray supports in the Generic Implementation Procedure (GIP-3A) for Seismic Verification of Nuclear Plant Equipment, Rev 3A, developed by the Seismic Qualification Utility Group (SQUG).

In order to meet the seismic design objectives defined in UFSAR Section 3.10.1, the following seismic evaluation methods were employed consistent with the applicable licensing commitment.

Testing Devices may be qualified by either shaker or impact tests. A certification of the test results or copies of the test results are required. Additionally, a manufacturer's certification that a certain type of equipment would withstand the seismic conditions is acceptable based on previous testing/experience with similar equipment.

Analysis Devices may also be qualified by analytical methods. For example, one evaluation method involves calculating/determining the natural frequency of the device, entering the appropriate response spectra damping curves, and determining the corresponding amplification factor. The device is then evaluated using this "G" loading value.

Alternatively, the devices may be evaluated without calculating/determining its natural frequency by using the peak amplification factor from the appropriate response spectra damping curve to determine the "G" loading.

An alternate method of seismic qualification for electrical equipment (within the applicable equipment classes) would be an experience based approach. Seismic adequacy can be established using methods described in the Generic Implementation Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 3 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Procedure (GIP) for Seismic Verification of Nuclear PlantEquipment, Revision 3A, developed by the Seismic Qualification Utility Group (SQUG). This method is also commonly known as SQUG.

1.3. Response to generic letter 87-02 Generic Letter 87-02, "Verification of Seismic Adequacy of Mechanical and Electrical Equipment in Operating Reactors, Unresolved Safety Issue (USI) A-46," was issued because the NRC concluded that the seismic adequacy of certain equipment in operating plants must be reviewed against seismic criteria developed during the resolution of Unresolved Safety Issue (USI) A-46.

The NRC determined that it is not feasible to require older operating plants to meet new licensing requirements that were not in use when plants were licensed. Therefore, an alternative method was selected to verify the seismic capability of equipment. This alternative method used a compilation of existing earthquake experience data supplemented by test data as the basis to verify the seismic capability of equipment. Generic Letter 87-02 allowed the seismic verification to be accomplished by utilities through a generic program, and the Seismic Qualification Utility Group (SQUG) was formed. The SQUG developed a Generic Implementation Procedure (GIP) that documents the seismic verification process, procedures, and methodologies for verifying the seismic qualification of equipment and resolving USI A-46. Supplement 1 of Generic Letter 87-02 endorsed use of the GIP for the seismic qualification process and contained revised licensee actions. Oconee performed the seismic qualification process in accordance with the NRC enforced version of the GIP. In a Safety Evaluation Report, the NRC concluded that Oconee met the purpose and intent of the seismic qualification process and that the corrective actions and modifications provide sufficient basis to close the USI A-46 review at Oconee.

The seismic verification process is considered part of the seismic licensing basis for Oconee, so the seismic qualification criteria developed by the SQUG in response to Generic Letter 87-02 must be considered during mechanical and electrical equipment modifications.

1.4. Codes and Standards The following codes, standards, and specifications were used during the design, construction, testing and in-service inspection of Class 1 Structures:

ASME-1965 - Boiler and Pressure Vessel Code, Sections III, VIII, and IX AISC - Steel Construction Manual, 6th ed Regulatory Guide 1.92, Combining Responses And Spatial Components In Seismic Response Analysis, Revision 1, February 1976 Regulatory Guide 1.29, Seismic Design Classification, Revision 3, September 1978 Supplement No. 1 To Generic Letter (GL) 87-02 That Transmits Supplemental Safety Evaluation Report NO.2 (SSER NO. 2) On SQUG Generic Implementation Procedure Revision 2, As Correction On February 14, 1992 (GIP-2), May 22, 1992 NRC Letter To SQUG Dated December 4, 1997. Supplemental Safety Evaluation Report NO. 3 (SSER NO. 3) On The Review Of Revision 3 To The Generic Implementation Procedure For Seismic Verification Of Nuclear Power Plant Equipment, Updated 5/16/97 (GIP-3)

NRC Letter To SQUG Dated 6/23/99, Review Of Seismic Qualification Utility Group's Report on the use of Generic Implementation Procedure for New and Replacement Equipment and Parts Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 4 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3

2. Personnel Qualifications The personnel involved in the Oconee NTTF Recommendation 2.3 Seismic Walkdown effort met the qualification requirements of EPRI 1025286. The personnel responsibilities and qualifications are outlined in TABLE 2.1 below. (Note: PE=Professional Engineer, CLB=Current License Basis, SWEL= Seismic Walkdown Equipment List)

Table 2.1 Years of Relevant 3:

Personnel Degree YasoRevntE*0 0)

Experience Qualifications 0 -j.2 (Duke Energy)

BS/Civil Engineering 30 IPEEE, 6

)

(Duke Energy)

BSCvlEgiern 2PESEE Ray Mc Coy BS/Civil Engineering 32 PESCE X

(Duke Energy)

Bob Hester B/ii niern 6PC (Duke Energy)

B/CvlEgneig3PE EX Paul Mabry BS/Nuclear 27 SRO"), STA(5)

X (Duke Energy)

Engineering Tommy Loflin AS/Electrical 35+

SRO(4 )

X (Duke Energy)

Engineering Jim Weir BS/Mechanical SWE'2',

(Duke Energy)

Engineering SFC SYS ENG Charles M.

BS/Civil Engineering 28 PE,SCE('), SWE (2)

X(3)

Conselman (ARES)

James White (ARES)

BS/Civil Engineering 42 PE,SCE(l), SWE (2)

X(3)

John North (ARES)

BS/Civil Engineering 28 PE,SWE(2)

X(3)

Mike Donnelly BS/Civil Engineering 4

SWE(2)

X (ARES)_________

Anthony Fazio BS/Chemical 40+

SWE(2)

X (Shaw)

Engineering John Spizuoco BS/Mechanical 44 PE,SCE(l), SWE(2)

X (Shaw)

Engineering Arthur Richert BS/Mechanical 32 PE,SWE(2)

X (Shaw)

Engineering Paul Baughman BS/Civil Engineering

>40 PE,SCE(l), SWE (2)

(ARES)

George Bushnell BS/Mechanical

>40 PE,SCE(1 ), SWE (2)

X (Shaw)

Engineering Robert L. Keiser MS/Civil Engineering

>20 PE,SCE(1), SWE (2)

X (Duke Energy)

NOTES:

1) Seismic Capability Engineers (SCEs) who have successfully completed EPRI Experience Based Seismic Evaluation training.

2) Seismic Walkdown Engineers (SWEs) have successfully completed EPRI 1025286 2 day walkdown training course.

3) Senior Team Member.

4) Prior Senior Reactor Operator (SRO).

5) Prior Shift Technical Advisor

6) IPEEE seismic Walkdown Coordinator and current A-46/IPEE Program Owner (SQUG)

3. Selection of SSCs The Oconee Unit 3 SWEL-1 and SWEL-2 equipment selection was performed in accordance with the EPRI guidance outlined in EPRI Technical Report #1025286. SWEL-1 represents a Contains Security-Sensitive Information - Withhold From Public Disclosure under 1 OCFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 5 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 sample of items to safely shut down the reactor and maintain containment integrity. SWEL-2 represents spent fuel pool related items.

The Oconee USI A-46/IPEEE Safe Shutdown Equipment List (SSEL) was used as the basis for the Base-1 equipment list. The scope of the Seismic Walkdown Equipment List (SWEL) is limited to SSCs that are classified as Seismic Category I. This is done such that items have a defined seismic licensing basis against which to evaluate the as-installed configuration. Oconee is a USI A-46 plant. The purpose of the USI A-46 program was to verify the seismic adequacy of essential equipment in older operating plants that had not been qualified in accordance with more recent criteria.

Many of the SSC's listed in the USI A-46/IPEEE Safe Shut down Equipment List (SSEL) are not category I. However, Oconee programmatically maintains the seismic capability of these components. Therefore, for the purpose of developing the SWEL all USI A-46/IPEEE components are considered to have a seismic licensing basis.

The A-46/IPEEE SSEL effectively represents the output of EPRI guidance equipment Screening criteria's #1, #2 and #3. The underlying data used to generate the Base-1 list is contained in an ACCESS database. This ACCESS database was used to generate the Base-1 Equipment List from which the SWEL-1 was selected. The equipment comprising the Base-1 equipment list is contained in Attachment 1. Their individual Safety Function is identified as shown below. Some components support more than one safety function.

A. Reactor reactivity control B. Reactor coolant pressure control C. Reactor coolant inventory control D. Decay heat removal E. Containment function The Base-1 Equipment List is comprised of 2264 components from Oconee Units 1, 2 & 3 &

components that support all 3 Units (Common). The Base-1 Equipment list is contained in.

3.1. SWEL-1 Development EPRI TN-1025286 specifies that the SWEL-1 should be comprised of between 90-120 components and that each unit should have its own individual SWEL-I.

357 of the Base-1 components are Common components that support all 3 units. In order to account for these common components, -10% (39 items) of the base-1 common components were selected as SWEL-1 components. All of the 39 common components are considered to be part of each individual unit's SWEL-I.

The Unit 3 SWEL-1 consists of 131 components. Of these 131 components, 39 are common components which are also represented in each individual unit's SWEL-1. Attachment 2 contains the SWEL-1 components for Unit 3. The criteria for selection of equipment to be included in the SWEL are described in EPRI TN-1025286 section 3.

Screen #4 -- Sample Considerations -

Five sample selection attributes that should be represented in SWEL 1:

A variety of types of systems

Major new and replacement equipment

A variety of types of equipment

A variety of environments

Equipment enhanced due to vulnerabilities identified during the IPEEE program Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 6 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 In addition to the five sample considerations listed above, the equipment selected for the SWEL-1 should include considerations of the contribution to Risk for the SSC's and should also include a review by appropriate Operations personnel.

SWEL-1 Systems -

The SWEL-1 equipment list represents 24 systems associated with the 5 safety functions.

SWEL-1 Types of Equipment -

The SWEL-1 list contains representative equipment from all equipment classes with the following exceptions.

" There are no equipment Class 11 (Chillers), Class 12 (Air Compressors) or Class 13 (Motor - Generators) components on the Unit 3 SWEL-1 list because they are not represented in the Base-1 list.

" There are no equipment class 17 (Engine - Generators) on the Unit 3 SWEL-1. The Standby Shutdown Facility (SSF) Diesel Engine (16 Cylinder) (OSSFDEOOOA) is listed on the Base-1 list. However, it was not selected as part of the SWEL-1 due to its inherently robust nature and the very low seismic input at its location.

SWEL-1 Equipment locations -

The SWEL-1 equipment list includes equipment located in a broad variety of areas and environments. These areas comprise multiple buildings and elevations and include equipment located both inside and outside. The equipment areas provide a broad range of equipment environmental conditions, which include:

" Mild environmental conditions with limited temperature and humidity variations (e.g.

Control Room, Cable Rooms, Equipment Rooms, SSF Electrical Room, RelayHouse, etc.)

Moderate environmental conditions (e.g. general areas of the Auxiliary Building, East &

West Penetration Rooms, SSF Diesel Room, SSF Battery Room, Control Room Ventilation Rooms, etc.)

Moderate to harsh environmental conditions (e.g. LPI/BS/HPI Pump Rooms, LPI Cooler Room, etc.)

" Harsh environmental conditions (e.g. Inside RB Containment, etc.).

" Partial exposure to outdoor environmental conditions (e.g. Switchyard, Intake Structure)

Wet environments (Keowee Turbine Wheel Pit)

SWEL-1 Major New and Replacement Equipment -

In order to capture significant new and replacement equipment on the SWEL-1, a query was written which related the Base-1 equipment list to underlying data supporting Engineering Changes in the Duke Energy Nuclear Asset Suite Software (NAS). By doing this, a list EC's associated with all components on the Base-1 equipment list was generated. Editorial and minor modifications were then filtered out of the list. The following New and Replacement Equipment have been included in the Unit 3 SWEL-1.

Equipa Engineering.

ID No.

~

~Ž Change>

3CLT0036 LIST 3A LEVEL ECO000072624 NSM ON-33098/00/00/AK1 - UPPER SURGE TANK INVENTORY PROTECTION OD301663 - REPLACE ROTORK OPER. WITH 3CCWVA0268 SSF ASW PUMP DISCH ISOL ECO000098122 O

REPLC EV-26WI LIMITORQUE 3CCW-EV-268. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 7 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Equip~

t-~~ngine'erlng, Name~

MOD Descriptio'n Change:

NSM ON-33032/00/00/DL1 - (REFURB) REPLACE 3CRDCACC2 DCRDCS CONTROL CABINET CC-5 EC0000068373 NSM ONTRO L

SR BREA CRDM CONTROL SYSTEM NSM ON-33032/O0/00/DL1

- (REFURB) REPLACE 3CRDCACC5 DCRDCS CONTROL CABINET CC-5 ECO000068373 CRM ONTROL SYSTEM CRDM CONTROL SYSTEM EC91859 - BKUP PWR-U3 PRESR.HTR AND BAT 3ELBC3CA CONTROL BATT CHGR 3CA EC0000091859 CCA

& B FRM PSW CHRG 3CA & 3CB FRM PSW 3ELLX3X2 600V LC 3X02 EC0000108414 REPLACE 3X2 TRANSFORMER 00300070 - (REFURB) UNIT 3 ESFAS 3ESCA3ESTC1 ESFAS ODD CH TERM CAB 3ESTC1 ECO000077069 R

A ENT MD ITION REPLACEMENT MODIFICATION 3ESVPL0001 UNIT 3 ESV LOCAL CONTROL ECO000049837 NSM ON-43000/00/00/BL1 - OCONEE SERVICE PANEL WATER 3ESVTF0003 600/240/120V 3SKN POWER ECO000049837 NSM ON-43000/00/00/BL1 - OCONEE SERVICE TRANSFORMER WATER FABRICATE COVER FOR BAILEY RP1211 E/P 3HPIEP0075 RCP SEAL INJECTION FLOW EC0000105844 COVERSION CONVERSION 3HPIHXOOOB LETDOWN COOLER 3B EC0000104674 ALLOW FOR REPLACEMENT OF 1/2/3 HPI HX OOOA/OOOB (LETDOWN COOLERS)

OE300846 - 3A AND 3B LETDOWN COOLER 3HPIHXOOOB LETDOWN COOLER 3B EC0000091493 R

E NT REPLACEMENT 0OD301990 - REPLACE LPI PUMP CYCLONE 3LPIPUO001 3LPI PUMP A EC0000096420 SEATO&SALRICS SEPARATOR & SEAL ORIFICES 3PPSCA001 RPS A/ES A1 EC0000077069 0D300070 - (REFURB)UNIT3ESFAS REPLACEMENT MODIFICATION 3PPSCA012 ES VOTER ODD ECO000077070 OD300071 - (REFURB) UNIT 3 RPS REPLACEMENT MODIFICATION OD300070 -

(REFURB) UNIT 3 ESFAS 3PPSCA018 ES STATUS EVEN ECO000077069 R

A ENT MD ITION REPLACEMENT MODIFICATION OE501326 - UNIT 1, 2 & 3 RBCU COOLING COIL 3RBCHXOOOA RB COOLING UNIT 3A ECO000092953 REPLACEMENT.

REPLACEMENT.

3RCLT0004P1 PRZ LEVEL TRANSMITTER EC0000089713 00300444 - (REFURB) UNIT 3 CR AND PLANT CHART REC UPGRADE 00300444 - (REFURB) UNIT 3 CR AND PLANT 3RCLT0123 3A RCS HOT LEG LVL (ICCM A)

ECO000089713 CHART R URADE CHART REC UPGRADE 00300070 - (REFURB) UNIT 3 ESFAS 3RCPT0022P RC PRESS XMTR (ES CH B)

ECO000077069 R

A ENT MD ITION REPLACEMENT MODIFICATION 00300615 - REPLACE SSF CONTROL CONSOLE 3RCPT0226 U3 RC LOOP B PRESSURE EC0000090684 IDICATOR A RCS PTN INDICATORS AND RCS PTS 3VSAH0014 AHU-3-14 EC0000100113 REPLACE UNIT 3 CONTROL ROOM AHU 3-14 Oconee revised the modification process at the completion of the A-46/IPEEE programs to require plant modifications to evaluate impact to A-46/IPEEE components to ensure that the seismic capability of A-46/IPEEE components was not degraded Current site projects such as Protected Service Water (PSW) which are not operational and not currently credited within the Current Licensing Basis of Oconee are not within the scope of the SWEL-1.

SWEL-1 Equipment Enhanced per IPEEE -

Significant IPEEE enhancements associated with the Base-1 equipment list as reported in the IPEEE submittal dated 12/15/1997 were identified. SWEL-1 SSCs were selected such that a sampling of SSCs which had been enhanced per IPEEE was included. The following SWEL-1 SSCs were enhanced due to IPEEE. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 8 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 "quip Etigineering Name MOD Description~

11)

No.Change 3ELBA3CA CONTROL BATT 3CA ONOE-13462 Add anchorage to AHU 3-31.

3ELBK3A 240/120V 3A REGULATOR ONOE-13992 Add bracing to unistrut frame supporting 3A/1B/SW, OUTPUT BKR 3A/MCB, 3B/MCB, 3A/REG, 3B/REG, 3A/XFMR & 3B/XRMR.

3ELCA3TTC4 TURB TERM CAB 3TTC4 ONOE-13557 Enhance existing anchorage for 3TTC4.

3ELMX3XAA 208V MCC 3XA-A ONOE-13560 Enhance existing anchorage for 3XA-A.

3ELMX3XGB MCC 3XGB ONOE-15068 Enhance existing anchorage of 3XGB.

3ELMX3XT MCC 3XT ONOE-15556 Add shims or move MCC 3XT.

3VSAH0014 AHU-3-14 ONOE-15561 Provide lateral & vertical seismic restraints to 3VSAH0014..

Revise OM-1393-0008 to reflect that anchorage for 1 & 2 3ELPL3EPSLP2 EPSL PANEL 3EPSLP2 ONOE-12245 ESTC1,2 & 3 is addressed in OSC-208.

SWEL-1 Risk Considerations -

EPRI TN-1 025286 requires that the development of SWEL 1 should include consideration of the importance of the contribution to risk for the SSCs.

In response to IPEEE, Oconee utilized the results of seismic margin methodology walkdowns to enhance the existing seismic PRA. These results are documented in OS-10225 "Seismic PRAIIPEEE Backup Calculations" and summarized in the Supplemental IPEEE submittal Report. From the conclusions presented in the Supplemental IPEEE submittal Report, PRA sequences involving loss of power and SSF response make up several of the most dominate PRA cut sets. SSC's supporting Keowee, the SSF and the 230 Kv switchyard are well represented in the SWEL-1.

In addition, input was obtained from the General Office PRA group to determine a ranking of the most seismically risk significant components.

Of the 31 unscreened PRA events with a contribution to CDF of greater than 0%, 19 are represented in the combined SWEL-1's for Units 1, 2 &3. This represents 61% of PRA risk significant components and meets the intent of EPRI TN-1025286.

SWEL-1 Operations review -

The SWEL71 equipment listed was submitted to Oconee Operations for review as recommended within EPRI TN-1025286. Operations concurred with the equipment listed on the SWEL-1 list. The SWEL-2 equipment list was developed within the Oconee Engineering organization by a highly experienced engineer who had previously held a Senior Reactor Operators License (SRO) and was previously an Operations Shift Technical Advisor (STA)..

3.2. SWEL-2 Development The Oconee Unit 3 SWEL-2 spent fuel pool equipment list was developed in accordance with the EPRI guidance. Seismic Category I structures, piping, and containment penetrations were specifically excluded by the EPRI guidance. The four screening criteria specified were as follows:

1) Seismic Category I or USI A-46 (SQUG) licensing bases,

2) Spent Fuel Pool (SFP) equipment appropriate for an equipment walkdown process,

3) Sample considerations represent broad population of equipment with considered sample selection attributes such as:

a. represent a variety of systems,

b. major new/replacement equipment, Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 9 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 c-Variety of equipment types,

d. variety of environments

4) Equipment which could result in rapid drain down of the SFP (includes both seismic and non-seismic components and similar factors outlined in 3) above.

The SWEL-2 equipment Base-2 (Attachment 3) was established based on screens #1 and

2 above. Equipment was selected from the Base-2 list based on screening criteria #3 above, and primarily included major equipment such as the spent fuel cooling system pumps, pump motor air handling units, and heat-exchangers.

The SWEL-2 list was further evaluated based on screening criteria #4 above, to include equipment which could result in SFP rapid drain-down, as defined by the EPRI guidance.

All three Oconee Unit's have SF Pool transfer tubes that open to the SF Pool in normal operation. The SSF RC Make-up and letdown lines penetrate into the SF Pool transfer tubes. The SSF Make-up and Letdown lines meet Seismic Category 1. There were also SF Pool discharge lines at valves SF22&50 and 3SF-22&50 that could meet the criteria for a rapid drain down due to a siphon if the SF Cooling pump discharge piping, which meets Seismic Category 1, were to fail outside the SF Pool.

However, this vulnerability had previously been identified and procedure requirements prevent system alignment and thereby remove this vulnerability. For these reasons, there are no rapid draw down items on the SWEL-2.

The SWEL-2 components were selected based on their radiological accessibility. Of the 3 pumps identified in the SWEL-2 base list, 2 were included in the SWEL-2. Of the 7 Tanks identified in the SWEL-2 base list, 4 were included in the SWEL-2. This sampling is in accordance with EPRI TN-1025286.

The final SWEL-2 list is provided in Attachment 4.

4. Seismic Walkdowns and Area Walk-Bys SWEL-1 SSCs which could only be accessed during an outage will be walked down by Duke Energy personnel and reported on at a later date. These SSCs are listed below.

.u..i t

.d...

E q i p N -...

N a m e 3

RB 3FDWLT0082 SG 3A LEVEL TRANSMITTER 3

RB 3HPVA0004 LETDOWN ISOLATION 3

RB 3HPIFT0157 U3 RC MAKE UP PUMP FLOW 3

RB 3HPIHXOOOB LETDOWN COOLER 3B 3

RB 3RBCAH0020C RBCU FAN 3C 3

RB 3RBCHXOOOA RB COOLING UNIT 3A 3

RB 3RCLT0004P1 PRZ LEVEL TRANSMITTER 3

RB 3RCPT0022P RC PRESS XMTR (ES CH B) 3 RB 3RCPT0226 U3 RC LOOP B PRESSURE 3

RB 3RCRD0084A REACTOR OUTLET LOOP 3A 3

RB 3RCVA0066 PRZ PORV 3

RB 3RCVA0159 RV VENT ISOLATION 3

RB 3SFTKO002 INCORE INST HANDLING TANK Duke Energy contracted with the Shaw Group / ARES Corporation team to perform the majority of the NTTF 2.3 seismic walkdowns at Oconee Nuclear Station. A summary report of the walkdowns along with the individual Seismic Walkdown Checklists and the Area Walk-By Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 10 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 Checklists are contained in this report. The NTTF 2.3 Seismic Walkdown Report for Unit 1 is contained in Attachment 5. Items found to be inaccessible during this walkdown are addressed below.

Inaccessible SSCs -

Several Unit 3 SSC's were inaccessible due to their physical location or due to personnel safety concerns. These items are listed below.

Wu 1

"-*!".:ji-*.

I a;mie-I E.uip 3

TB 3ELLX3X2 600V LC 3XO2 3

AB 3ELLX3X8 600V LC 3X08 3

BH3 3ELSH3B1T02 RELAYS SECTION The anchorage for one SSC was only partially visible due to some of the welds being covered by mortar spillage from an adjacent masonry wall. A station Work request has been written to clean the weld area and the welds will be evaluated at a later date. This Item and several other inaccessible items listed below are common to all 3 units but will be included in the Unit 1 update report.

0 SYD OSYDPLSYDC1 SWITCHYARD DISTRIBUTION CENTER 1 K1 KEO K1PMGDTMPU1A SPEED CONTROL MAGNETIC PICKUP 1A K2 KEO K2ELKTNO203 TERM BOX TB-203 K2 KEO K2GAHX0003 GEN AIR COOLER 3 K2 KEO K2HPOPU88HA AC GEN HP LIFT PUMP (88HA)

K2 KEO K2TSLS63SB TURB SUMP LEVEL SWITCH (2TSLS0002)

An update to this report will be submitted by Sept 1, 2014. The update will provide the results associated with the Outage deferred items and the inaccessible items above. Associated Area Walk bys for the listed components will be completed in conjunction with the individual SSC's.

The concrete adjacent to the anchors for three SSCs listed below was not visible due to the installation of carpet. These items were given a status of Unknown in Appendix B to Attachment 5 of this report. The anchors for these SSC's were inspected as part of a major plant modification EC 0000077070 [OD300071 - (REFURB) UNIT 3 RPS Replacement Modification]

and EC 0000077069 [OD300070 - (REFURB) UNIT 3 ESFAS Replacement Modification] which was installed on 4/30/12 during 3EOC26. The anchors were torqued per procedure and inspected per QC at that time. Therefore the condition of the concrete at the anchors is assured per this previous inspection.

3 AB 3PPSCA0001 RPS A/ES Al 3

AB 3PPSCA0012 ES VOTER ODD 3

AB 3PPSCA0018 ES STATUS EVEN

5. Licensing Basis Evaluations A total of 15 potential adverse conditions were identified per the Seismic Walkdowns and the Area walk-by's. All of these potential issues were entered into the Corrective Action Program (CAP). All potential adverse conditions were evaluated for their compliance with the seismic licensing basis within the CAP and were found to be acceptable. Station Work Requests were written for some conditions as good practice. The potential adverse conditions and their Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 11 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 individual Problem Investigation process (PIP) tracking numbers are listed in the NTTF 2.3 Seismic Walkdown Report for Unit 3 contained in Attachment 5.

6. IPEEE Vulnerabilities Resolution Report Oconee submitted its response to IPEEE on 12/21/1995 & 12/15/1997. In those submittals, Oconee stated that there were no underlying significant sequences (vulnerabilities) from external events. There were also no plant changes identified that would significantly reduce risk from external events.

Table 6-1 of the IPEEE Submittal dated 12/15/1997 listed 152 enhancements. The enhancements identified have been completed by either Station Work Request, Plant Modification or Analysis.

Oconee is a USI A-46 plant and performed the USI A-46 walkdowns in conjunction with the IPEEE walkdowns. In Oconee's letter to the NRC dated 9/12/2002, Oconee confirmed that outliers associated with Generic Letter 87-02 (USI A-46) have been completed. Oconee performed the USI A-46 seismic evaluations in conjunction with the IPEEE evaluations. The criteria for both programs were conservatively enveloped such that an evaluation of a given component would address all aspects of both programs. IPEEE enhancements are a subset of the overall USI A-46 outliers. Therefore, implementation of the IPEEE enhancements is confirmed by the 9/12/2002 SQUG Outlier Resolution Completion Notice.

7. Peer Review Duke Energy (Duke) contracted with the Shaw Group (Shaw) / ARES Corporation (ARES)

Team to perform the NTTF 2.3 peer review at the Oconee Nuclear Station (ONS). The Peer Review Report is contained in Attachment 6.

The Peer Review Team consisted of three individuals, all of whom have seismic engineering experience as it applies to nuclear power plants. These individuals participated in the peer review of each of the activities. The members of the Peer review team and their qualifications are listed in table 2.1 The Peer Review team concluded that the Shaw/ARES methodology conforms to the guidance in Section 6 of EPRI 1025286. The peer review covered the following:

The selection of the SSCs included on the Seismic Walkdown Equipment List (SWEL).

" A sample of the checklists prepared for the seismic walkdowns and area walk-bys.

" The licensing basis evaluations.

The decisions for entering the potentially adverse conditions in the Corrective Action Program (CAP) process.

The submittal report.

The peer review process for the SWEL development and the seismic walkdowns consisted of the following:

Reviewing the activity guidance in EPRI 1025286, the NEI Q&A bulletins, the NEI first-mover reports, and NRC Temporary Instruction 2515/188.

Conducting an in-process review at the plant site, including interviews with the personnel performing the activity and reviewing in-process documentation. Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 12 of 13

Unit 3 Seismic Walkdown Report - NRC 50.54 (f) NTTF Recommendation 2.3 0

Performing an in-plant surveillance (for the walkdown activity) of a seismic walkdown and an area walk-by.

Providing in-process observations and comments to the personnel performing the activities.

Conducting a final review of a sample of the completed documentation.

The peer review process for the licensing basis evaluations and the decisions for entering potentially adverse conditions into the CAP consisted of reviewing the overall review process and a sample of the licensing basis reviews. The peer review process for the submittal report consisted of reviewing the draft submittal prepared by Oconee Design Engineering for licensing review.

The conclusion of the peer review is that the ONS NTTF 2.3 seismic walkdown effort has been conducted in accordance with the guidance in EPRI 1025286. Comments made during the in-process review of the SWEL development and the walkdowns have been addressed satisfactorily. In-process comments on the final walkdown reports, the licensing basis reviews, and the submittal have also been resolved.

REFERENCES:

1) UFSAR Section 3.2.1 Seismic Classification (Rev. 21)

2) UFSAR Section 2.5.1.2 Site Geology (Rev. 21)

3)

UFSAR Sections 2.5.2.10, 2.5.2.11 SSE/OBE (Rev. 21)

4) UFSAR Section 3.7 Seismic Design (Rev. 21)

5)

EPRI Report 1025286, Dated May 2012, Seismic Walkdown Guidance for Resolution of Fukushima Near-Term Task Force (NTTF) Recommendation 2.3 (ATTACHMENT 1).

6) Oconee NRC Response to GL 88-20, Individual Plant Examination of External Events (IPEEE)

Submittal, dated Dec. 18, 1997, W. R. McCollum Jr. to NRC.

7) 7/9/12 correspondence to NRC from Ben C. Waldrep, "Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident" ATTACHMENTS:

1) Oconee Unit 3 SWEL-1 Base-1 List

2) Oconee Unit 3 SWEL-1

3) Oconee Unit 3 SWEL-2 Base-2 List and Rapid Drain Down List

4) Oconee Unit 3 SWEL-2

5) Seismic Walkdown Summary Report and Checklists

6)

PEER Review Summary Report Contains Security-Sensitive Information - Withhold From Public Disclosure under 10CFR 2.390(d)(1)

(Upon removal of Attachment 5 from the Enclosure, the Enclosure is uncontrolled)

Page 13 of 13 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

CCW CD 0001 0

CCW CD 0002 0

CCW PU 0001 0

CCW PU 0002 0

CCW PU 0003 0

CCW PU 0004 0

CCW PU 0005 0

CCW PU 0010 0

DA TK OOOA 0

DA TK 000B 0

DA TK 0OOC 0

DA TK 000D 0

DJW HX OOOA 0

DJW HX 000B 0

EL BS 4160CT4 0

EL BS CCTRENCH 0

EL BS UFCT4 0

EL CA SYTC1 0

EL CA SYTC12 0

EL CA SYTC15 0

EL CA SYTC17 0

EL CA SYTC18 0

EL CA SYTC19 0

EL CA SYTC2 0

EL CA SYTC3 0

EL CA SYTC4 0

EL CA SYTC5 0

EL CA SYTC8 0

EL PL CT4FSC 0

EL PL DCSF 0

EL PL DCSF1 0

EL PL KSF 0

EL PL KSFC 0

EL SH ASWS 0

EL SH BIT05 0

EL SH B1T09 0

EL SH BIT1O 0

EL SH B2TO5 0

EL SH B2T09 0

EL SH DGSWGR 0

EL TF OCT4 0

EL TF OCT5 0

FO PU 0005 0

FO TK 0003 Description SSF HVAC CONDENSER 1 SSF HVAC CONDENSER 2 AUX SERVICE WATER PUMP SSF AUX SERVICE WATER PUMP HVAC SERVICE WTR PUMP 1 HVAC SERVICE WTR PUMP 2 SSF DIESEL WATER JACKET PUMP SSF SUBMERSIBLE PUMP DIESEL STARTING AIR TANK A DIESEL STARTING AIR TANK B DIESEL STARTING AIR TANK C DIESEL STARTING AIR TANK D SSF DJW HEAT EXCHANGER A SSF DJW HEAT EXCHANGER B 4160V STANDBY BUS FDR FROM XFMR CT4 TO BIT & B2T CONTROL CABLE TRENCH (SWYD TO OCONEE)

UNDERGROUND FEEDER (KEOWEE TO CT4)

SWYD TERMINAL CABINET 01 SWYD TERMINAL CABINET 12 SWYD TERMINAL CABINET 15 SWYD TERMINAL CABINET 17 SWYD TERMINAL CABINET 18 SWYD TERMINAL CABINET 19 SWYD TERMINAL CABINET 02 SWYD TERMINAL CABINET 03 SWYD TERMINAL CABINET 04 SWYD TERMINAL CABINET 05 SWYD TERMINAL CABINET 08 CT4 FAN SPEED CABINET 125 VDC POWER PNL BRD DCSF 125 VDC DISTRIBUTION CENTER DCSF-1 208/120VAC SSF VITAL PWR PNL (GRAY) 120V PPB KSFC AUX SERV WATER SWGR (4160V) (1TD-0)

SKi CT4 TO STDBY BUS 1 FDR BKR SECTION SL1 CT5 STDBY BUS 1 FDR BKR SECTION AUX SERVICE WATER SWGR BKR SECTION SL2 CT5 STDBY BUS 2 FDR BKR SECTION SK2 CT4 STDBY BUS 2 FDR BKR SECTION DIESEL GENERATOR SWITCHGEAR XFMR CT-4 XFMR CT-5 SSF DIESEL ENGINE FUEL OIL TRANSFER PUMP SSF DIESEL OIL DAY TANK Bldg.

FLEL Safety Function SSF 817 B,C SSF 817 B,C AB 771 D

SSF 754 D

SSF 754 B,C SSF 754 B,C SSF 754 B,C SSF 796 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C SSF 777 B,C TB 796 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 796 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E AB 771 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E SSF 777 A, B, C, D, E BH3 796 A, B, C, D, E YD 796 A, B, C, D, E SSF 777 B,C SSF 777 B,C Page 1 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 0

FO TK 0004 0

HPS PG 0012 0

HPS PG 0013 0

HPS PG 0016 0

HPS PG 0224 0

HPS PG 0225 0

HPS PG 0226 0

HPS PU 0001 0

HPS PU 0002 0

HPS PU 0003 0

HPS VA 0140 0

HPS VA 0147 0

HPS VA 0154 0

LPS FL OOOA 0

LPS FL O0OB 0

LPS FL 0OOC 0

LPS PS 0097 0

LPS PS 0098 0

LPS PU OOOA 0

LPS PU OOB 0

LPS PU O0OC 0

LPS VA 0175 0

LPS VA 0182 0

LPS VA 0189 0

NI CA 0225 0

RCW HX OOOA 0

RCW HX 0OOB 0

RCW HX OOOC 0

RCW HX 000D 0

SSF BA DCSF 0

SSF BA DCSFS 0

SSF CA 0002 0

SSF CA 0003 0

SSF CA ICI 0

SSF CA IC2 0

SSF CA MEC 0

SSF DE OOOA 0

SSF MX XSF 0

SSF PL SSFCP 0

SSF SH OTS1 0

SYD BA SY1 0

SYD BA SY2 0

SYD BC SY1 0

SYD BC SY2 Description SSF DIESEL OIL STORAGE TANK JOCKEY PUMP DISCH. PRESS. GAGE HPSW PUMP B DISCH. PRESS. GAGE HPSW PUMP A DISCH. PRESS. GAGE HPSW PUMP A STRAINER DP GAGE HPSW PUMP B STRAINER DP GAGE JOCKEY PUMP STRAINER DP GAGE HPSW STANDBY PUMP A HPSW STANDBY PUMP B HPSW JOCKEY PUMP Seal Supply Reg. Valve Seal Supply Reg. Valve Seal Supply Reg. Valve LPSW PUMP A STRAINER LPSW PUMP B STRAINER LPSW PUMP C STRAINER A LPSW HDR PRESS #1 A LPSW HDR PRESS #2 LPSW PUMP A LPSW PUMP B LPSW PUMP C LPSW PUMP A SEAL FLOW REG LPSW PUMP B SEAL FLOW REG LPSW PUMP C SEAL FLOW REG SSF NUCLEAR INSTRUMENTATION RACK A RCW HEAT EXCHANGER B RCW HEAT EXCHANGER C RCW HEAT EXCHANGER D RCW HEAT EXCHANGER DCSF SSF NORMAL BATTERY DCSFS SSF STANDBY BATTERY PZR HEATER CAB (SSF)SSF PRESSURIZER HEATER CABINET (PHC)

SSF PRESSURIZER HEATER CABINET (PHC1)

SSF EOC SYS INTERCONN CAB IC1 SSF EOC SYS INTERCONN CAB IC2 MISC EQUIP CAB SSF DIESEL ENGINE B (16 CYL)

MCC XSF(600V)

SSF CONTROL PANEL OTS1 SSF ESSENTIAL SWGR 4160V 230KV SWYD BATTERY #SY1 230KV SWYD BATTERY #SY2 230KV SWYD BATTERY CHARGER SY1 230KV SWYD BATTERY CHARGER SY2 Bldg.

FL EL Safety Function YD 785 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B,C TB 775 B

TB 775 B

TB 775 D

SSF 777 A, B, C, D, E TB 775 D

TB 775 D

SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, E SSF 777 A, B, C, E SSF 797 A, B, C, D, E SSF 797 A, B, C, D, E SSF 797 A, B, C, D, E SSF 777 A, B, C, D, E SSF 777 A, B, C, D, E SSF 797 A, B, C, D, E SSF 777 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E Page 2 of 23 Oconee Unit 3, SWEL-1.Base 1 Equipment List Unit Sys Type Number 0

SYD BD RB02 0

SYD BD RB03 0

SYD BD RB06 0

SYD BD RB07 0

SYD BD RB08 0

SYD BD RB1O 0

SYD BD RB17 o

SYD BD RF02 0

SYD BD RF03 O

SYD BD RF06 0

SYD BD RF17 0

SYD BD SRB06 0

SYD BD SRB09 0

SYD BD SRB14 0

SYD BD SRB15 0

SYD BD SRB17 0

SYD BD SRF06 0

SYD BD SRF07 0

SYD BD SRF08 0

SYD BD SRF09 0

SYD BD SRF1O 0

SYD BD SRF17 O

SYD BK PCBO8 0

SYD BK PCB09 O

SYD BK PCB12 0

SYD BK PCBS15 0

SYD BK PCB33 o

SYD BS 230KRED 0

SYD BS 230KYEL 0

SYD BS TRENCH 0

SYD PL DYA 0

SYD PL DYB 0

SYD PL DYC 0

SYD PL DYE 0

SYD PL DYF 0

SYD PL DYG 0

SYD PL SYDC1 0

SYD PL SYDC2 0

SYD TF RBPT 0

SYD TF YBPT 0

VS AH 0042 0

VS AH 0044EX1 0

VS AH 0044EX2 O

VS AH 0044EX3 Description SWITCHYARD RELAY BOARD RB02 SWITCHYARD RELAY BOARD RB03 SWITCHYARD RELAY BOARD RB06 SWITCHYARD RELAY BOARD RB07 SWITCHYARD RELAY BOARD RB08 SWITCHYARD RELAY BOARD RB10 SWITCHYARD RELAY BOARD RB17 SWITCHYARD RELAY BOARD RF02 SWITCHYARD RELAY BOARD RF03 SWITCHYARD RELAY BOARD RF06 SWITCHYARD RELAY BOARD RF17 SWITCHYARD RELAY BOARD SRB06 SWITCHYARD RELAY BOARD SRB09 SWITCHYARD RELAY BOARD SRB14 SWITCHYARD RELAY BOARD SRB15 SWITCHYARD RELAY BOARD SRB17 SWITCHYARD RELAY BOARD SRF06 SWITCHYARD RELAY BOARD SRFO7 SWITCHYARD RELAY BOARD SRF08 SWITCHYARD RELAY BOARD SRF09 SWITCHYARD RELAY BOARD SRF10 SWITCHYARD RELAY BOARD SRF17 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08) 230KV AC POWER CIRCUIT BREAKER 09 (PCB-09) 230KV AC POWER CIRCUIT BREAKER 12 (PCB-12) 230KV AC POWER CIRCUIT BREAKER 15 (PCB-15) 230KV AC POWER CIRCUIT BREAKER 33 (PCB-33) 230KV SWITCHYARD RED BUS 230KV SWITCHYARD YELLOW BUS MISC SWYD TRENCHES DC PANELBOARD A DC PANELBOARD B DC PANELBOARD C DC PANELBOARD E DC PANELBOARD F DC PANELBOARD G SWITCHYARD DISTRIBUTION CENTER 1 SWITCHYARD DISTRIBUTION CENTER 2 RED BUS POTENTIAL TRANSFORMER (EGPS)

YELLOW BUS POTENTIAL TRANSFORMER (EGPS)

AHU 0-42 HEATING AND A/C SSF BUILDING SSF CONST VENT SUPPLY FAN & MOTOR SSF SUMMER VENT SUPPLY FAN & MOTOR SSF ON LINE VENT SUPPLY FAN & MOTOR Bldg.

FLEL Safety Function SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E SSF 817 B,C SSF 817 B,C SSF 817 B,C SSF 817 B,C Page 3 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 0

VS AH 0044EX4 SSF ENGINE EX FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX5 SSF SUMMER EXHAUST FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX6 SSF ON LINE EXHAUST FAN & MOTOR SSF 817 B,C 0

VS AH 0044EX7 SSF CONSTANT EXHAUST FAN & MOTOR SSF 817 B,C 0

VS DA CDO1 SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA CD02 SSF SUMMER VENTILATION (VS-AH-044EX2) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA CD03 SSF ON-LINE VENTILATION (VS-AH-0044EX3) EXHAUST FAN DAMPER SSF 817 B,C 0

VS DA ID01 SSF INLET DAMPER ID-1 (AH EXHAUST FAN AH0044EX4)

SSF 817 B,C 0

VS DA ID0lE ACTUATOR FOR INTAKE DAMPER SSF-ID-A & B SSF 817 B,C 0

VS DA ID01W ACTUATOR FOR INTAKE DAMPER SSF-ID-C & D SSF 817 B,C 0

VS DA ID02 INLET DAMPER ID-2 (SSF AH EXH FAN AH0044EX3)

SSF 817 B,C 0

VS DA ID02A ACTUATOR FOR INLET DAMPER SSF-ID2 (EXH FAN AH0044EX3)

SSF 817 B,C 0

VS DA ID03 SSF INLET DAMPER ID-3 (AH EXHAUST FAN AH0044EX1)

SSF 817 BC 0

VS DA ID03A ACTUATOR FOR INLET DAMPER SSF-ID3 (EXH FAN AH0044EX1)

SSF 817 B,C 0

VS DA ID04 SSF INLET DAMPER ID-4 (AH EXHAUST FAN AH0044EX2)

SSF 817 B,C 0

VS DA ID04A ACTUATOR FOR INLET DAMPER SSF-ID4 (EXH FAN AH0044EX2)

SSF 817 B,C 0

VS DA XD01 SSF EXH DAMPER XD-1 (AH EXH. FAN AH0044EX4)

SSF 817 B,C 0

VS DA XD01E ACTUATOR FOR EXH DAMPER SSF-XD-A&B SSF 817 B,C 0

VS DA XD01W ACTUATOR FOR EXH DAMPER SSF-XD-C&D SSF 817 B,C 0

VS DA XD02 SSF PRESS OPER EXH DAMPER XD-2 (AH EXH FAN AH0044EX7)

SSF 817 B,C 0

VS DA XD03 SSF EXH DAMPER XD-3 (AH EXH FAN AH0044EX1)

SSF 817 BC 0

VS DA XD03A ACTUATOR FOR EXH DAMPER SSF-XD3 (EXH FAN AH0044EX1)

SSF 817 B,C 0

VS DA XD04 SSF PRESS OPER EXH DAMPER XD-4 (AH EXH. FAN AH0044EX5)

SSF 817 B,C 0

VS DA XDOS SSF EXH DAMPER XD-S (AH EXH. FAN AH0044EX2)

SSF 817 B,C 0

VS DA XD05A ACTUATOR FOR EXH DAMPER SSF-XD5 (EXH FAN AH0044EX2)

SSF 817 B,C 0

VS DA XD06 SSF PRESS OPER EXH DAMPER XD-6 (AH EXH. FAN AH0044EX6)

SSF 817 B,C 0

VS PE SSFPEO1 SSF SUMMER VENT. SYSTEM (VH) EXHAUST FAN (SSF-XF-3)

SSF 825 A, B, C, D, E 0

VS PE SSFPE02 SSF A/C SYSTEM AIR HANDLING UNIT SSF TBD A, B, C, D, E 0

VS PL CPO1AH2 SSF CONTROL BOARD FOR THE HVAC SYSTEM SSF 817 A, B, C, D, E 0

VS PS SSFPS01 SSF CONSTANT VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS02 SSF SUMMER VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS03 SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS04 SSF CONSTANT VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS05 SSF SUMMER VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS06 SSF ON-LINE VENTILATION SYSTEM EXHAUST FAN SSF 822 A, B, C, D, E 0

VS PS SSFPS07 SSF ENGINE VENTILATION SYSTEM EXHAUST FAN SSF 782 A, B, C, D, E 0

VS PS SSFPS08 SSF A/C SYSTEM AIR FLOW PRESS SWITCH SSF TBD A, B, C, D, E 0

VS TT SSFCT1 HVAC TEMPERATURE CONTROLLER (FOR SSF-AH-1)

SSF 822 A, B, C, D, E 0

VS TT SSFCT2 HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

SSF 822 A, B, C, D, E 3

AS PT 0117P AUX STEAM PRESSURE TRANSMITTER (MS-126 & MS-129)

TB 796 D

3 BAG BD 3AB1 CONTROL BOARD 3AB1 AB 822 A, B, C, D, E 3

BAG BD 3AB2 CONTROL BOARD 3AB2 AB 822 A, B, C, D, E 3

BAG BD 3AB2A CONTROL BOARD 3AB2A AB 822 A, B, C, D, E 3

BAG BD 3AB3 CONTROL BOARD 3AB3 AB 822 A, B, C, D, E Page 4 of 23 Oconee Uf 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

BAG BD 3AB3A 3

BAG BD 3UB1 3

BAG BD 3UB2 3

BAG BD 3VB1 3

BAG BD 3VB2 3

BAG BD 3VB3 3

BS PS 0018 3

BS PS 0019 3

BS PS 0020 3

BS PS 0021 3

BS PS 0022 3

BS PS 0023 3

BS PT 0004P 3

BS PT 0005P 3

BS PT 0006P 3

BS PU 0001 3

BS PU 0002 3

BS VA 0001 3

BS VA 0002 3

BS VA 0003 3

BS VA 0004 3

C CD OOOA 3

C CD 000B 3

C CD OOOC 3

C DM OOOA 3

C DM 000B 3

C DM OOOC 3

C DM 000D 3

C DM OOOE 3

C HX 002A 3

C HX 002B 3

C LT 0015A 3

C LT 0036 3

C PS 0015 3

C PS 0036 3

C PS 0227 3

C PU 0010 3

C PU 0011 3

C PU 0012 3

C PU 0019 3

C PU 0020 3

C PU 0021 3

C PU 0022 3

C PU 0023 Description CONTROL BOARD 3AB3A CONTROL BOARD 3UB1 CONTROL BOARD 3UB2 CONTROL BOARD 3VB1 CONTROL BOARD 3VB2 CONTROL BOARD 3VB3 RB PRESS SWITCH (ES CH 3A) (CHANNEL 7)

RB PRESS SWITCH (ES CH 3A) (CHANNEL 8)

RB PRESS SWITCH (ES CH 3B) (CHANNEL 7)

RB PRESS SWITCH (ES CH 3B) (CHANNEL 8)

RB PRESS SWITCH (ES CH 3C) (CHANNEL 7)

RB PRESS SWITCH (ES CH 3C) (CHANNEL 8)

RB PRESS XMTR (ES CH 3A)

RB PRESS XMTR (ES CH 3B)

RB PRESS XMTR (ES CH 3C)

RBS PUMP 3A RBS PUMP 3B RB SPRAY HEADER 3A ISOLATION RB SPRAY HEADER 3B ISOLATION RBS PUMP SUCTION ISOL RBS PUMP SUCTION ISOL CONDENSER 3A CONDENSER 3B CONDENSER 3C POLISHING DEMINERALIZER 3A POLISHING DEMINERALIZER 3B POLISHING DEMINERALIZER 3C POLISHING DEMINERALIZER 3D POLISHING DEMINERALIZER 3E CONDENSATE COOLER A CONDENSATE COOLER B UST 3B LEVEL UST 3A LEVEL UST MAKEUP LEVEL CONTROL (PS-15)

UST MAKEUP LEVEL CONTROL (PS-36)

CONDENSATE BOOSTER PUMP SUCTION HEADER PRESS LOW HOTWELL PUMP 3A HOTWELL PUMP 3B HOTWELL PUMP 3C HOLDING PUMP HOLDING PUMP HOLDING PUMP 3C HOLDING PUMP 3D HOLDING PUMP 3E Bldg.

FLEL Safety Function AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 E

AB 809 E

AB 758 E

AB 809 E

AB 758 A,B,C,D AB 758 E

TB 775 D

TB 838 D

TB 775 D

Page 5 of 23 Oco-hi'e Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

C SV 1920 3

C TK 0003 3

C TK OOOA 3

C TK O00B 3

C TK OOOC 3

C VA 0192 3

C VA 0391 3

CC HX OOOA 3

CC HX 000B 3

CCW FT 0225 3

CCW PL 0268 3

CCW PL 0287 3

CCW PU 0001 3

CCW PU 0002 3

CCW PU 0003 3

CCW PU 0004 3

CCW PU 0024 3

CCW VA 0268 3

CCW VA 0269 3

CCW VA 0287 3

CF TK OOOA 3

CF TK 000B 3

CRD CA 0001 3

CRD CA CC1 3

CRD CA CC2 3

CRD CA CC3 3

CRD CA CC4 3

CRD CA CC5 3

CRD CA CC6 3

CRD CA SRPSCC1 3

CRD CA SRPSCC2 3

CRD CA SRPSCC5 3

CRD CA SRPSCC6 3

CS VA 0005 3

CS VA 0006 3

EHC CA EHC1 3

EHC CA EHC2 3

EHC CA EHC3 3

EHC CA EHTC1 3

EHC CA EHTC2 3

EHC SV 1083 3

EHC SV 1084 3

EL BA 3CA 3

EL BA 3CB Description SOLENOID VLV TO HOTWELL NORMAL MAKEUP CONTROL - VALVE 3C-SLURRY TANK UPPER SURGE TANK 3A UPPER SURGE TANK 3B UPPER SURGE TANK DOME HOTWELL NORMAL MAKEUP CONTROL HOTWELL SUPPLY ISO TO TDEFW COMPONENT COOLER 3A COMPONENT COOLER 3B SSF ASW FLOW REMOTE STARTER ENCLOSURE FOR 3CCW-268 REMOTE STARTER ENCLOSURE FOR 3CCW-287 CCW PUMP 3A CCW PUMP 3B CCW PUMP 3C CCW PUMP 3D EFWPT OIL COOLER PUMP SSF ASW PUMP DISCH ISOL CROSSOVER ISOLATION TO A SSF ISOL VALVE CORE FLOOD TANK 3A CORE FLOOD TANK 3B CRD AC REACTOR TRIP BREAKER CABINET CONTROL CABINET CC-1 CONTROL CABINET CC-2 CONTROL CABINET CC-3 CONTROL CABINET CC-4 CONTROL CABINET CC-5 CONTROL CABINET CC-6 DCRDCS CONTROL CABINET SRPS CC1 DCRDCS CONTROL CABINET SRPS CC2 CONTROL CABINET CC-5 CONTROL CABINET CC-6 QUENCH TANK DRAIN QUENCH TANK DRAIN EHC CAB 3EHC1 EHC CAB 3EHC2 EHC CAB 3EHC3 EHC TERM CAB 3EHTC1 EHC TERM CAB 3EHTC2 MASTER TRIP SOLENOID VALVE A MASTER TRIP SOLENOID VALVE B CONTROL BATT 3CA CONTROL BATT 3CB Bldg.

FLEL Safety Function TB 775 D

TB 775 D

TB 838 D

TB 775 D

AB 783 A

AB 796 D

SSF 754 D

SSF 758 D

INT 810 D,A INT 810 D,A INT 810 D,A INT 810 D,A TB 775 C

SSF 754 D

RB 777 D

SSF 754 D

RB 797 B, D RB 817 B,D AB 809 A

AB 809 A

RB 777 A, BC AB 758 A,B,C AB 809 D

-AB 809 D

AB 809 D

TB 809 D

AB 809 A, B, C, D,E AB 809 A, B,C, D, E Page 6 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys 3

EL 3

EL Type Number BA 3PA BA 3PB BC 3CA BC 3CB BC 3PA BC 3PB BI 3DIA BI 3DIB BI 3DIC BI 3DID BI 3KI BI 3KU BI 3KX BK 3A BK 3B BS 230CT3 BS 4160CT3 BS 416OMFB1 BS 416OMFB2 EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL EL CA CA CA CA CA CA CA CA CA CA CA CA CA CA CA CA CA DI DI DI DI DI DI DI IR 3AT3 3AT4 3AXTC2 3EB1 3EB2 3EB3 3EB4 3EB5 3EB6 3EB7 3EB8 3MTC1 3MTC2 3MTC3 3MTC4 3T-C4 SGLC3 3ADA 3ADB 3ADC 3ADD 3ADE 3ADF 3ADG MC25 Description PWR BATT 3PA PWR BATT 3PB CONTROL BATT CHGR 3CA CONTROL BAIT CHGR 3CB PWR BATT CHGR 3PA PWR BATE CHGR 3PB 120V STATIC INV 3DIA 120V STATIC INV 3DIB 120V STATIC INV 3DIC 120V STATIC INV 3DID STATIC INVERTER 3KI (INCLUDES STATIC XFER SWITCH)

STATIC INVERTER 3KU (INCLUDES STATIC XFER SWITCH)

STATIC INVERTER 3KX (INCLUDES STATIC XFER SWITCH) 240/120V 3A REGULATOR OUTPUT BKR 240/120V 3B REGULATOR OUTPUT BKR CT3 OVERHEAD FEEDER (SWYD PCB 30 TO CT3) 4160V STARTUP BUS FROM TRANSFORMER CT3 4160V MAIN FEEDER BUS 1, B13, (3B1T TO 3TC,3TD,3TE) 4160V MAIN FEEDER BUS 2, B23, (3B2TTO 3TC,3TD,3TE)

AREA TERM CAB 3AT3 AREA TERM CAB 3AT4 AUX TERMINAL CABINET 3AXTC2 ELECTRICAL BOARD 3EB1 ELECTRICAL BOARD 3EB2 ELECTRICAL BOARD 3EB3 ELECTRICAL BOARD 3EB4 ELECTRICAL BOARD 3EB5 ELECTRICAL BOARD 3EB6 ELECTRICAL BOARD 3EB7 ELECTRICAL BOARD 3EB8 MISC TERM CAB 3MTC1 MISC TERM CAB 3MTC2 MISC TERM CAB 3MTC3 MISC TERM CAB 3MTC4 TURB TERM CAB 3TTC4 STEAM GEN LOGIC CABINET ISOL DIODE ASSEMBLY 3ADA ISOL DIODE ASSEMBLY 3ADB ISOL DIODE ASSEMBLY 3ADC ISOL DIODE ASSEMBLY 3ADD ISOL DIODE ASSEMBLY 3ADE ISOL DIODE ASSEMBLY 3ADF ISOL DIODE ASSEMBLY 3ADG INSTRUMENT RACK 3MC-25 Bldg.

FLEL Safety Function TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SYD 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 D

Page 7 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

EL IR MC29 3

EL IR MC32 3

EL IR MC33 3

EL IR PIR 3

EL LX 3X1 3

EL LX 3X10 3

EL LX 3X2 3

EL LX 3X3 3

EL LX 3X4 3

EL LX 3X5 3

EL LX 3X6 3

EL LX 3X8 3

EL LX 3X9 3

EL MX 3XA 3

EL MX 3XAA 3

EL MX 3XB 3

EL MX 3XC 3

EL MX 3XD 3

EL MX 3XGA 3

EL MX 3XGB 3

EL MX 3Xl 3

EL MX 3XJ 3

EL MX 3XL 3

EL MX 3XN 3

EL MX 3XO 3

EL MX 3XP 3

EL MX 3XR 3

EL MX 3XS1 3

EL MX 3XS2 3

EL MX 3XS3 3

EL MX 3XSF 3

EL MX 3XSF1 3

EL MX 3XSFA 3

EL MX 3XT 3

EL PL 3CPS 3

EL PL 3DCA 3

EL PL 3DCB 3

EL PL 3DIA 3

EL PL 3DIB 3

EL PL 3DIC 3

EL PL 3DID 3

EL PL 3DL2 3

EL PL 3DP 3

EL PL 3EPSLP1 Description INSTRUMENT RACK 3MC-29 INSTRUMENT RACK 3MC-32 INSTRUMENT RACK 3MC-33 UNIT 3 PNEUMATIC INSTR RACK 600V LC 3X01 600V LC 3X10 600V LC 3X02 600V LC 3X03 600V LC 3X04 600V LC 3X05 600V LC 3X06 600V LC 3X08 600V LC 3X09 MCC 3XA 208V MCC 3XA-A 600V MCC 3XB MCC 3XC 600V MCC 3XD MCC 3XGA MCC 3XGB 600V MCC 3Xl 600V MCC 3XJ MCC 3XL MCC 3XN MCC 3XO MCC 3XP 600V MCC 3XR MCC 3XS1 MCC 3XS2 MCC 3XS3 MCC 3XSF(600V)

MCC 3XSF-1 (208V)

MCC 3XSF(208V)

MCC 3XT 3 POWDEX PANEL 125V DC 3DCA 125V DC 3DCB 125V PPB 3DIA 125V PPB 3DIB 125V PPB 3DIC 125V PPB 3DID 250V DC 3DL2 PPB 125/250V DC 3DP Bldg.

FL__EL Safety Function TB 796 "

D TB 775 D

TB 775 D

AB 809 B

TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 D

TB 796 D

TB 775 D

TB 796 D

AB 809 D

AB 771 A, B, C AB 771 A, B, C AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 838 A

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SSF 817 A, B, C, D, E SSF 797 A, B, C, D, E SSF 817 A, B, C, D, E AB 838 D

TB 775 D

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D; E AB 809 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E EPSL PANEL 3EPSLP1 AB 809 A, B, C, D, E Page 8 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys 3

EL 3

EL Type Number PL 3EPSLP2 PL 3KA PL 3KB PL 3KC PL 3KD PL 3KE PL 3KESP PL 3KG PL 3KI PL 3KM PL 3KRA PL 3KRB PL 3KU PL 3KVIA PL 3KVIB PL 3KVIC PL 3KVID PL 3KX PL 3121 PL 3L22 PL 3SGFP PL 3SKJ PL 3SKK PL 3SKL PL 3SKM PL 3SKN PL 3SKP PL 3TCPA PL 3TDC31 PL HBP PL MFBMRP PL PZR3B SH 3BIT01 SH 3B1T02 SH 3B1T03 SH 3B1T05 SH 3B2T01 SH 3B2T02 SH 3B2T03 SH 3B2T05 SH 3TC01 SH 3TC14 SH 3TDO1 SH 3TD14 Description EPSL PANEL 3EPSLP2 120V PPB 3KA 120V PPB 3KB 120V PPB 3KC 120V PPB 3KD 120V PPB 3KE KEOWEE EM START PANEL 120V PPB 3KG 120V PPB 3KI 120V PPB 3KM 120V PPB 3KRA 120V PPB 3KRB 120V PPB 3KU 120V PPB 3KVIA 120V PPB 3KVIB 120V PPB 3KVIC 120V PPB 3KVID 120V PPB 3KX 125V DC PPB 3121 125V DC PPB 3L22 SG FWP PANEL 208/120V PPB 3SKJ 208/120V PPB 3SKK 120V PPB 3SKL 240/120V PPB 3SKM 240/120V PPB 3SKN 240/120V PPB 3SKP TURB CONT PANEL 3TCPA TRANSDUCER CAB 3TDC3 UNIT 3 HEATER BLANKETING PANEL MAIN FDR BUS MONITOR RLY PANEL 600V PPB 3B (FOR PRESSURIZER HEATERS GROUP 3B BANK 2)

E13 MFB1 STARTUP FDR BKR SECTION RELAYS SECTION POTENTIAL TRANSFORMER SECTION N13 3MFB1 NORM FDR FROM 3T XFMR SECTION N23 MFB2 NORMAL FDR BKR SECTION POTENTIAL TRANSFORMER SECTION RELAYS SECTION E23 MFB2 STARTUP FDR BKR SECTION 3TC BUS 1 INCOMING FDR BKR SECTION 3TC BUS 2 INCOMING FDR BKR SECTION 3TD BUS 1 INCOMING FDR BKR SECTION 3TD BUS 2 INCOMING FDR BKR SECTION Bldg.

FL EL Safety Function AB 809 A, B, C, D, E TB 775 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E AB 771 A, B, C, D, E AB 796 A, B, C, D, E AB 809 A, B, C, D, E AB 838 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 775 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E ESV 797 A, B, C, D, E TB 796 A, B, C, D, E AB 809 A, B, C, D, E TB 822 D

AB 809 A, B, C, D, E RB 817 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E BH3 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E Page 9 of 23 Oconee Unit 3, SWEL-1, Base 1 EqUil ment List Unit Sys Type Number 3

EL SH 3TE01 3

EL SH 3TE14 3

EL SH B1T07 3

EL SH B2T07 3

EL SX 3KIBKUP 3

EL SX 3KIBYP 3

EL SX 3KUBKUP 3

EL SX 3KUBYP 3

EL SX 3KXBKUP 3

EL SX 3KXBYP 3

EL SX ABXFER 3

EL TF 0CT3 3

EL TF 3A 3

EL TF 3B 3

EL TF 3KB 3

EL TF 3KC 3

EL TF 3KI 3

EL TF 3KU 3

EL TF 3XA 3

EL TF 3XC 3

EL TF 3XGA 3

EL TF 3XGB 3

EL TF 3XL 3

EL TF 3XN 3

EL TF 3XO 3

EL TF 3XP 3

EL TF 3XR 3

EL TF 3XSIA 3

EL TF 3XS2A 3

EL TF 3XS3A 3

EL TF 3XSF 3

EL TF 3XT 3

EL TN 2345 3

EL TN 2346 3

EL TN 2353 3

EL VR 000A 3

EL VR 000B 3

ES CA 0001 3

ES CA 0002 3

ES CA 0003 3

ES CA 0004 3

ES CA 0005 3

ES CA 0006 3

ES CA 0007 Description 3TE BUS 1 INCOMING FDR BKR SECTION 3TE BUS 2 INCOMING FDR BKR SECTION 513 STBY BUS 1 TO MFB1 BKR SECTION S23 STBY BUS 2 TO MFB2 BKR SECTION BACKUP TRANSFER SWITCH 3KI INVERTER BYPASS SWITCH 3KI BACKUP TRANSFER SWITCH 3KU INVERTER BYPASS SWITCH 3KU BACKUP TRANSFER SWITCH 3KX INVERTER BYPASS SWITCH 3KX 3A/3B REG XFER SW XFMR CT-3 XFMR 3A (600V TO 240V)

XFMR 3B (600V TO 240V) 600/208V TRANSFORMER 3KB 600/208V TRANSFORMER 3KC ISOLATION XFMR SHIELDED 3KI ISOLATION XFMR SHIELDED 3KU XFMR 3XA (600V TO 208V)

XFMR 3XC (600V TO 208V)

XFMR 3XGA (600V TO 208V)

XFMR 3XGB (600V TO 208V)

XFMR 3XL (600V TO 208V)

XFMR 3XN (600V TO 208V)

XFMR 3XO (600V TO 208V)

XFMR 3XP (600V TO 208V)

XFMR 3XR (600V/208V)

XFMR 3XS1A (600V TO 208V)

XFMR 3XS2A (600V TO 208V)

XFMR 3XS3A (600V TO 208V)

XFMR 3XSF (600V TO 208V)

XFMR 3XT (600V TO 208V)

TERMINAL BOX TB-2345 TERMINAL BOX TB-2346 TERMINAL BOX TB-2353 REGULATED PWR SUPP REG 3A REGULATED PWR SUPP REG 3B ES ANALOG CABINET 1 ES ANALOG CABINET 2 ES ANALOG CABINET 3 ES LOGIC CABINET 4 ES LOGIC CABINET 5 ES LOGIC CABINET 6 ES LOGIC CABINET 7 Bldg.

FLEL Safety Function TB 796 A, B, C, D, E TB 796 A, B, C, D, E BH1 796 A, B, C, D, E BH1 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E TB 796 A, B, C, D, E TB 775 A, B, C, D, E TB 796 A, B, C, D, E TB 796 A, B, C, D, E AB 771 A, B, C, D, E AB 771 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 838 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 796 A, B, C, D, E SSF 817 A, B, C, D, E AB 838 A, B, C, D, E AB 809 B

AB 809 B

TB 796 D

AB 796 A, B, C, D, E AB 796 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E Page 10 of 23 Oconee Unit 3, SWEL-1, BaS -1 Equipment List Unit Sys Type Number 3

ES CA 0008 3

ES CA 0009 3

ES CA 3ESTC1 3

ES CA 3ESTC2 3

ES CA 3ESTC2A 3

ES CA 3ESTC3 3

ESV CA 3ESV1 3

ESV CA 3ESV2 3

ESV CA 3ESV3 3

ESV PL 0001 3

ESV PT 0001 3

ESV PT 0002 3

ESV PU 0001 3

ESV PU 0002 3

ESV PU 0003 3

ESV TF 0001 3

ESV TF 0002 3

ESV TF 0003 3

ESV TK 0001 3

ESV TK 0002 3

ESV VA 0001 3

ESV VA 0002 3

ESV VA 0028 3

ESV VA 0029 3

FDW FT 0140 3

FDW FT 0141 3

FDW FT 0153 3

FDW FT 0154 3

FDW LT 0066 3

FDW LT 0067 3

FDW LT 0080 3

FDW LT 0081 3

FDW LT 0082 3

FDW LT 0083 3

FDW PL 0368 3

FDW PL 0369 3

FDW PL 0372 3

FDW PL 0374 3

FDW PL 0382 3

FDW PL 0384 3

FDW PL ATWSCP 3

FDW PS 0300 3

FDW PS 0382 3

FDW PS 0383 Description ES LOGIC CABINET 8 ES LOGIC CABINET 9 ESFAS ODD CH TERM CAB 3ESTC1 ESFAS EVEN CH TERM CAB 3ESTC2 ESFAS AUX RLY CAB 3ESTC2A ES ODD & EVEN RLY CAB 3ESTC3 ESV PUMP CONTROLS RELAY CABINET 3ESV1 ESV PUMP CONTROLS RELAY CABINET 3ESV2 ESV PUMP CONTROLS RELAY CABINET 3ESV3 UNIT 3 ESV LOCAL CONTROL PANEL ESV TANK PRESSURE TRANSMITTER ESV TANK PRESSURE TRANSMITTER ESV PUMP 3A ESV PUMP 3B ESV PUMP 3C 600/240/120V 3SKM POWER TRANSFORMER 600/240/120V 3SKN POWER TRANSFORMER 600/240/120V 3SKN POWER TRANSFORMER ESV Receiver Tank 3A ESV Receiver Tank 3B ESV FLOAT VALVE ESV FLOAT VALVE ESV TANK MIN. FLOW VALVE ESV TANK MIN. FLOW VALVE 3A EFW HEADER FLOW 38 EFW HEADER FLOW 3A EFW HEADER FLOW TRANSMITTER 3B EFW HEADER FLOW TRANSMITTER S/G 3A LEVEL S/G 3B LEVEL SG 3A LEVEL TRANSMITTER SG 38 LEVEL TRANSMITTER SG 3A LEVEL TRANSMITTER SG 3B LEVEL TRANSMITTER REMOTE STARTER ENCLOSURE FOR 3FDW-368 REMOTE STARTER ENCLOSURE FOR 3FDW-369 REMOTE STARTER ENCLOSURE FOR 3FDW-372 REMOTE STARTER ENCLOSURE FOR 3FDW-374 REMOTE STARTER ENCLOSURE FOR 3FDW-382 REMOTE STARTER ENCLOSURE FOR 3FDW-384 U3 ATWS CONTROL PANEL 3EFPT LOW HYDR OIL PRESS SWITCH FWPT 3A CONTROL OIL PRESS SWITCH FWPT 3A CONTROL OIL PRESS SWITCH Bldg.

FL.EL Safety Function AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 809 A, B, C, D, E AB 796 D

AB 796 D

ESV 797 D

YD 796 D

ESV 797 D

AB 783 D

RB 777 D

AB 809 D

AB 838 D

TB 775 C

TB 775 D

Page 11 of 23 Oconee Unit 3, SWEL41, Base 1 Equipment List Unit Sys Type Number 3

FDW PS 0384 3

FDW PS 0385 3

FDW PS 1011 3

FDW PS 1012 3

FDW PU 0003 3

FDW PU 0004 3

FDW PU 0005 3

FDW SV 0037 3

FDW SV 0038 3

FDW TN 3TBATWS1 3

FDW TN 3TBATWS2 3

FDW TN 3TBFPT 3

FDW VA 0086 3

FDW VA 0087 3

FDW VA 0105 3

FDW VA 0106 3

FDW VA 0107 3

FDW VA 0108 3

FDW VA 0129 3

FDW VA 0218 3

FDW VA 0315 3

FDW VA 0316 3

GEN BS IPB 3

GWD VA 0012 3

GWD VA 0013 3

HP VA 0003 3

HP VA 0004 3

HP VA 0005 3

HP VA 0020 3

HP VA 0021 3

HP VA 0024 3

HP VA 0025 3

HP VA 0026 3

HP VA 0027 3

HP VA 0031 3

HP VA 0071 3

HP VA 0120 3

HP VA 0355 3

HP VA 0398 3

HP VA 0409 3

HP VA 0410 3

HP VA 0426 3

HP VA 0428 3

HPI EP 0003 Description FWPT 3B CONTROL OIL PRESS SWITCH FWPT 3B CONTROL OIL PRESS SWITCH MAIN FWP DISCH HDR PRESS SWITCH (3MS-93)

MAIN FWP DISCH HDR PRESS SWITCH (3MS-93)

TDEFW PUMP MDEFW PUMP 3A MDEFW PUMP 3B STEAM GEN A SAMPLE ISOL VALVE FOR 3FDW-106 STEAM GEN B SAMPLE ISOL VALVE FOR 3FDW-108 ATSW TERM BOX 1 ATSW TERM BOX 2 FEEDWATER PUMP TURBINE TERMINAL BOX PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS SG 3A SAMPLE ISOLATION SG 3A SAMPLE ISOLATION SG 3B SAMPLE ISOLATION SG 3B SAMPLE ISOLATION PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS MDEFW PUMP 3A ISOLATION MDEFW PUMP 3B ISOLATION ISOLATED PHASE BUS 19KV QUENCH TANK VENT QUENCH TANK VENT LETDOWN ISOLATION LETDOWN ISOLATION LETDOWN ISOLATION RCP SEAL RETURN ISOLATION RCP SEAL RETURN CONTAIN ISOL BWST SUCTION ISOLATION BWST SUCTION ISOLATION HPI LOOP 3A INJECTION HPI TRAIN 3B (EMERGENCY) INJECTION RCP SEAL INJ FLOW CONTROL SEAL RETURN LINE RELIEF RC VOLUME CONTROL HPI AUX SPRAY THROTTLE RC MAKEUP PUMP TO RCP SEALS BLOCK HPI CROSSOVER ISOLATION HPI CROSSOVER ISOLATION ALT LETDOWN PATH ISOLATION ALT LETDOWN PATH ISOLATION MAKEUP FLOW CONTROL Bldg.

FLEL Safety Function TB 775 D

TB 775 D

AB 809 D

AB 822 D

AB 809 D

TB 775 D

RB 808 D

AB 809 D

RB 808 D

AB 809 D

TB 775 D

AB 809 D

TB 796 A, B, C, D, E RB 797 A, B, C AB 809 A, B, C RB 777 B

RB 777 B

AB 809 B

RB 817 B

AB 809 B

AB 771 A,B,C AB 771 A,B,C AB 809 A,B,C AB 809 A,B,C AB 796 B

AB 771 B

AB 809 A,B,C AB 809 C

RB 777 B

AB 809 A,B,C AB 809 A,B,C RB 777 A,B RB 777 A,B AB 809 A,B,C Page 12 of 23 Oconee Unit-3,SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

HPI EP 0075 3

HPI FT 0007A 3

HPI FT 0008A 3

HPI FT 0075 3

HPI FT 0101 3

HPI FT 0102 3

HPI FT 0103 3

HPI FT 0104 3

HPI FT 0157 3

HPI FT 0160 3

HPI HX OOOA 3

HPI HX 000B 3

HPI HX 001A 3

HPI HX 001B 3

HPI LT 0033P1 3

HPI LT 0033P2 3

HPI PL 0409 3

HPI PL 0410 3

HPI PS 0357 3

HPI PU 0001 3

HPI PU 0002 3

HPI PU 0003 3

HPI PU 0005 3

HPI SV 0090 3

HPI SV 0095 3

HPI TK 0001 3

HT PL 3KTH1 3

HT PL 3KTH2 3

HT PL EP031 3

HT PL EP032 3

HT TF 3KTH2 3

ICC CA 0001A 3

ICC CA 0001B 3

ICS CA 0001 3

ICS CA 0002 3

ICS CA 0003 3

ICS CA 0004 3

ICS CA 0005 3

ICS CA 0006 3

ICS CA 0007 3

ICS CA 0008 3

ICS CA 0009 3

ICS

-CA 0010 3

ICS CA 0011 Description RCP SEAL INJECTION FLOW A LOOP INJ FLOW TRANSMITTER HPI LOOP 3B FLOW XMTR RCP SEAL [NJ FLOW TRANSMITTER RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

RC PUMP SEAL INLET FLOW XMTR (Powered by ICS)

U3 RC MAKE UP PUMP FLOW B LOOP INJ FLOW TRANSMITTER LETDOWN COOLER 3A LETDOWN COOLER 3B RC SEAL RETURN COOLER 3A RC SEAL RETURN COOLER 3B LDST LEVEL TRANSMITTER (TRAIN 1)

LDST LEVEL TRANSMITTER (TRAIN 2)

REMOTE STARTER ENCLOSURE FOR 3HP-409 REMOTE STARTER ENCLOSURE FOR 3HP-410 LETDOWN FLOW TEMP HIGH INTERLOCK HPI PUMP 3A HPI PUMP 3B HPI PUMP 3C SSF RC MAKEUP PUMP CONTROLS LETDOWN ISOLATION VALVE FOR 3HP-5 RC PUMP SEAL RETURN ISOLATION VLV FOR 3HP-21 LETDOWN STORAGE TANK TRACE HEATING PWR. PNLBD. 3KTH1 TRACE HEATING POWER PNL 3KTH2 EMERG BKR ALARM PNL EP3-1 EMERG BKR ALARM PNL EP3-2 FEEDER TO 208V PNLBD 3KTH2 (600/208V)

UNIT 3 ICCM TRAIN A CABINET UNIT 3 ICCM TRAIN B CABINET ICS CABINET 1 ICS CABINET 2 ICS CABINET 3 ICS CABINET 4 ICS CABINET 5 ICS CABINET 6 ICS CABINET 7 ICS CABINET 8 ICS CABINET 9 ICS CABINET 10 ICS CABINET 11 Bldg.

FL EL Safety Function AB 783 B

AB 758 A,B,C AB 758 A,B,C AB 783 B

AB 783 B

RB 777 B

AB 809 A,B,C RB 777 B

RB 777 B

AB 771 B

AB 796 A,B,C AB 796 A,B,C AB 783 B

AB 758 A,B,C AB 758 A,B,C AB 758 A,B,C RB 777 B

AB 809 B

AB 771 B

AB 771 D

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E Page 13 of 23 Ocone A hnit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

ICS CA 0012 3

ICS CA 0013 3

ICS CA 0014 3

ICS PL ASP 3

LP VA 0001 3

LP VA 0002 3

LP VA 0003 3

LP VA 0006 3

LP VA 0007 3

LP VA 0008 3

LP VA 0009 3

LP VA 0010 3

LP VA 0012 3

LP VA 0014 3

LP VA 0017 3

LP VA 0018 3

LP VA 0021 3

LP VA 0092 3

LP VA 0093 3

LP VA 0126 3

LPI FT 0004P 3

LPI FT 0005P 3

LPI HX OOOA 3

LPI HX 000B 3

LPI PL 0126 3

LPI PU 0001 3

LPI PU 0002 3

LPI PU 0003 3

LPI TE 0209 3

LPI TE 0210 3

LPI TK 0001 3

LPS FL OOOA 3

LPS FL 000B 3

LPS FT 0124 3

LPS FT 0125 3

LPS FT 1000 3

LPS FT 1001 3

LPS PS 0097 3

LPS PS 0098 3

LPS PU 0001 3

LPS PU 0002 3

LPS SV 0202 3

LPS SV 0203 3

LPS SV 1000 Description AUXILIARY SYSTEM CABINET #12 AUXILIARY SYSTEM CABINET #13 AUXILIARY SYSTEM CABINET #14 AUX SHUTDOWN PANEL LPI DROPLINE ISOL FROM RCS LPI DROPLINE ISOL FROM RCS LPI HOT LEG SUCTION LPI SUCTION CROSSOVER LPI SUCTION CROSSOVER LPI PUMP 3B SUCTION LPI CROSSOVER LPI CROSSOVER LPI COOLER 3A ISOLATION LPI COOLER 3B ISOLATION LPI TRAIN 3A INJECTION ISOL LPI TRAIN 3B INJECTION ISOL BWST SUCTION ISOLATION LPI COOLER BYPASS VALVE LPI COOLER BYPASS VALVE LPI POST ACCIDENT SAMPLE ISOL LPI TRAIN 3B INJ FLOW TRANS (Powered by ICCM)

LPI TRAIN 3A INJ FLOW TRANS (Powered by ICCM)

LPI COOLER 3A LPI COOLER 3B REMOTE STARTER ENCLOSURE FOR 3LP-126 3LPI PUMP A 3LPI PUMP B 3LPI PUMP C LPI COOLER OUTLET TEMP (ICS Input)

LPI COOLER OUTLET TEMP (ICS Input)

BWST LPSW PUMP A STRAINER LPSW PUMP B STRAINER LPI COOLER 3A FLOW XMTR (3LPSW-405)

LPI COOLER 3B FLOW XMTR (3LPSW-404)

DECAY HEAT COOLER A LPSW FLOW DECAY HEAT COOLER B LPSW FLOW A LPSW HDR PRESS B LPSW HDR PRESS LPSW PUMP 3A LPSW PUMP 3B MOTOR DRIVEN EFDW PUMP MTR 3A COOLING WATER FLOW MOTOR DRIVEN EFDW PUMP MTR 3B COOLING WATER FLOW SOLENOID VALVE FOR 3LPSW-251 Bldg.

FLEL Safety Function AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 822 A, B, C, D, E RB 797 B,D RB 777 D

AB 758 D

AB 771 D

AB 809 D

AB 771 A,B,C,D AB 771 D

AB 771 D

AB 758 A

AB 809 D

AB 771 D

AB 771 A

AB 758 D

AB 809 D

AB 771 D

YD 796 A,B,C TB 775 D

TB 775 D

AB 771 D

AB 771 B,D AB 771 B,D TB 775 D

TB 775 D

TB 775 C

AB 783 D

Page 14 of 23

.O. onee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

LPS SV 1001 3

LPS VA 0004 3

LPS VA 0005 3

LPS VA 0018 3

LPS VA 0021 3

LPS VA 0024 3

LPS VA 0139 3

LPS VA 0196 3

LPS VA 0203 3

LPS VA 0251 3

LPS VA 0252 3

LPS VA 0516 3

LPS VA 0525 3

MS PL 0079 3

MS PS 0086 3

MS PS 0087 3

MS PS 0088 3

MS PS 0089 3

MS PT 0024P 3

MS PT 0025P 3

MS PT 0026P 3

MS PT 0027P 3

MS PT 1006 3

MS PT 1007 3

MS PT 1008 3

MS PT 1009 3

MS PY 0042 3

MS SV 0074 3

MS SV 0178 3

MS SV 0179 3

MS SV 0180 3

MS SV 0181 3

MS VA 0001 3

MS VA 0002 3

MS VA 0003 3

MS VA 0004 3

MS VA 0005 3

MS VA 0006 3

MS VA 0007 3

MS VA 0008 3

MS VA 0009 3

MS VA 0010 3

MS VA 0011 3

MS VA 0012 Description SOLENOID VALVE FOR 3LPSW-252 LPI COOLER 3A ISOLATION VALVE LPI COOLER 3B ISOLATION VALVE RBCU 3A RETURN VALVE RBCU 38 RETURN VALVE RBCU 3C RETURN VALVE Nonessential Header Isolation Valve PUMP 3A SEAL FLOW REGULATOR PUMP 3B SEAL FLOW REGULATOR DECAY HEAT COOLER A (3LPSVA0251)

DECAY HEAT COOLER B (3LPSVA0252)

EFW PUMP 3A LPSW ISOLATION VALVE EFW PUMP 3B LPSW ISOLATION VALVE REMOTE STARTER ENCLOSURE FOR 3MS-79 MAIN STEAM PRESS SWITCH (3MS-19)

MAIN STEAM PRESS SWITCH (3MS-22)

MAIN STEAM PRESS SWITCH (3MS-28)

MAIN STEAM PRESS SWITCH (3MS-31)

SG 3A PRESSURE SG 3A PRESSURE SG 3B PRESSURE SG 3B PRESSURE AFIS ANALOG CHANNEL 3 - 3A S/G HDR PRESSURE AFIS ANALOG CHANNEL 3 - 3B S/G HDR PRESSURE AFIS ANALOG CHANNEL 4 - 3A S/G HDR PRESSURE AFIS ANALOG CHANNEL 4-3B S/G HDR PRESSURE UNIT 3 UPS (3MSSS0042 - 3MS-87))

TD EFDWP STEAM ADMISSION SOLENIOD FOR 3MS-93 TURB BYPASS CONTROL VLV A SHUTOFF TURB BYPASS CONTROL VLV B SHUTOFF TURB BYPASS CONTROL VLV C SHUTOFF TURB BYPASS CONTROL VLV D SHUTOFF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF Bldg.

FLEL Safety Function AB 783 D

AB 783 D

AB 809 E

TB 775 D

AB 783 D

TB 775 C

TB 796 D

RB 825 D

TB 796 D

AB 796 D

TB 775 D

TB 796 D

AB 809 D

Page 15 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number 3

MS VA 0013 3

MS VA 0014 3

MS VA 0015 3

MS VA 0016 3

MS VA 0017 3

MS VA 0019 3

MS VA 0022 3

MS VA 0024 3

MS VA 0026 3

MS VA 0028 3

MS VA 0031 3

MS VA 0033 3

MS VA 0035 3

MS VA 0036 3

MS VA 0040 3

MS VA 0043 3

MS VA 0047 3

MS VA 0076 3

MS VA 0077 3

'MS VA 0078 3

MS VA 0079 3

MS VA 0080 3

MS VA 0081 3

MS VA 0093 3

MS VA 0095 3

MS VA 0102 3

MS VA 0103 3

MS VA 0104 3

MS VA 0105 3

MS VA 0106 3

MS VA 0107 3

MS VA 0108 3

MS VA 0109 3

MS VA 0112 3

MS VA 0126 3

MS VA 0129 3

MS VA 0173 3

N TK 0003 3

N TK 0004 3

N TK 0005 3

N TK 0006 3

N TK 0007 3

PAM CA 0001 3

PAM LT 0090 Description MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF MAIN STEAM SAFETY RELIEF TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION TURBINE BYPASS ISOLATION TURBINE BYPASS VALVE TURBINE BYPASS VALVE AS ISOLATION FWPT ISOLATION FWPT ISOLATION FWPT 3A STOP VALVE (MS-40/SV12)

FWPT 3B STOP VALVE (MS-43/SV12)

MS TO CSAE MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MS TO 2ND STAGE RHTR ISOL MS RH ISOLATION MS TO 2ND STAGE RHTR ISOL MS TO 2ND STAGE RHTR ISOL TDEFW MS ISOLATION VALVE TD EFDWP GOVERNOR VALVE TURBINE STOP VALVE # 4 TURBINE STOP VALVE # 3 TURBINE STOP VALVE # 2 TURBINE STOP VALVE # 1 MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MAIN STEAM CONTROL VALVE MS TO 2ND STAGE RHTR ISOL MS TO AS CONTROL VALVE MS TO AS CONTROL VALVE MS TO 2ND STAGE RHTR ISOL NITROGEN SUPPLY FOR 3FDW-315 & 3FDW-316 NITROGEN SUPPLY FOR 3FDW-315 & 3FDW-316 NITROGEN SUPPLY FOR 3MS-87 NITROGEN SUPPLY FOR 3MS-126 NITROGEN SUPPLY FOR 3MS-129 POST ACCIDENT LIQUID SAMPLING PANEL RB CONTAINMENT WATER LVL TR A Bldg.

FLEL Safety Function AB 809 D

AB 809 D

TB 796 D

TB 775 D

TB 796 D

TB 775 D

TB 796 D

AB 838 D

TB 796 D

AB 771 A

RB 777 A

Page 16 of 23 Oconee Unit 3, SWEL-1, Base 1 Equipment Lift Unit Sys Type Number 3

PAM LT 0091 3

PAM P 0304 3

PAM P 0305 3

PPS CA 0001 3

PPS CA 0002 3

PPS CA 0003 3

PPS CA 0004 3

PPS CA 0005 3

PPS CA 0006 3

PPS CA 0007 3

PPS CA 0008 3

PPS CA 0009 3

PPS CA 0010 3

PPS CA 0011 3

PPS CA 0012 3

PPS CA 0013 3

PPS CA 0014 3

PPS CA 0015 3

PPS CA 0016 3

PPS CA 0017 3

PPS CA 0018 3

RBC AH 0020A 3

RBC AH 0020B 3

RBC AH 0020C 3

RBC HX OOOA 3

RBC HX OOOAAUX 3

RBC HX 000B 3

RBC HX OOOBAUX 3

RBC HX 0OOC 3

RBC HX OOCAUX 3

RBC HX OOODAUX 3

RC LT 0004P1 3

RC LT 0004P3 3

RC LT 0123 3

RC LT 0124 3

RC LT 0125 3

RC LT 0126 3

RC PL 3RC1 3

RC PT 0017P 3

RC PT 0021P 3

RC PT 0022P 3

RC PT 0023P 3

RC PT 0166P 3

RC PT 0225 Description RB CONTAINMENT WATER LVL TR B RB CONT WATER LVL IND TR A RB CONT WATER LVLIND TR B RPS A/ES Al RPS A/ES Al RPS A/ES B1 RPS A/ES BI RPS A/ES C1 RPS A/ES Cl RPS D RPS D ES A2 ES B2 ES C2 ES VOTER ODD ES VOTER ODD ES VOTER EVEN ES VOTER EVEN RPS E/MSI ES STATUS ODD ES STATUS EVEN RBCU FAN 3A RBCU FAN 3B RBCU FAN 3C RB COOLING UNIT 3A AUX RBCU A RB COOLING UNIT 3B AUX RBCU B RB COOLING UNIT 3C AUX RBCU C AUX RBCU D PRZ LEVEL TRANSMITTER PRZ LEVEL TRANSMITTER 3A RCS HOT LEG LVL (ICCM A) 3B RCS HOT LEG LVL (ICCM B)

RV HEAD LEVEL (ICCM A)

RV HEAD LEVEL (ICCM B) 3RC-1 SPRAY VALVE CONTROL BOX RCS LOOP A PRESS TRANS RC PRESS XMTR (ES CH A)

RC PRESS XMTR (ES CH B)

RC PRESS XMTR (ES CH C)

RCS LOOP B PRESS TRANS U3 RC LOOP A PRESSURE Bldg.

FLEL Safety Function RB 777 A

AB 822 A

AB 822 A,B,C,D,E AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 822 A,B,C,D,E AB 822 A,B,C,D,E AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B,C, D,E AB 822 A, B,C, D,E AB 822 A, B,C, D,E AB 822 A,B,C,D,E AB 822 A,B,C,D,E AB 822 A,B,C,D,E AB 822 A, B, C, D, E AB 822 A, B, C, D, E RB 825 E

RB 825

E RB 825 E

RB 817 E

RB 844 E

RB 817 E

RB 861 E

RB 817 E

RB 844 E

RB 797 B,C RB 797 B,C AB 809 B

AB 809 B

AB 796 B

RB 825 C

RB 825 B

RB 825 C

RB 797 C,D Page 17 of 23 Oconee Unit 3, SWEL-1, Base 1 EqUip'ment List Unit Sys Type Number 3

RC PT 0226 3

RC PT 0244 3

RC PT 0245 3

RC RD 0005B 3

RC RD 0006A 3

RC RD 0007B 3

RC RD 0008A 3

RC RD 0043A 3

RC RD 0043B 3

RC RD 0084A 3

RC RD 0084B 3

RC RD 0085A 3

RC RD 0085B 3

RC SV 0036 3

RC SV 0206 3

RC VA 0001 3

RC VA 0003 3

RC VA 0004 3

RC VA 0005 3

RC VA 0006 3

RC VA 0007 3

RC VA 0066 3

RC VA 0067 3

RC VA 0068 3

RC VA 0159 3

RC VA 0160 3

RC VA 0162 3

RC VA 0163 3

RC VA 0179 3

RPS CA Al 3

RPS CA A2 3

RPS CA 81 3

RPS CA B2 3

RPS CA Cl 3

RPS CA C2 3

RPS CA D1 3

RPS CA D2 3

RPS CA El 3

SC HX OOOA 3

SC HX 0008 3

SF TK 0002 3

SF VA 0082 3

SF VA 0097 3

SSW FT 1011 Description U3 RC LOOP B PRESSURE WR RCS PRESS TRAIN A (ICCM)

WR RCS PRESS TRAIN B (ICCM)

RCS COLD LEG RTD RCS COLD LEG RTD RCS COLD LEG RTD RCS COLD LEG RTD PRZ RTD PRZ RTD REACTOR OUTLET LOOP 3A A HOT LEG WIDE RANGE RTD REACTOR OUTLET LOOP 3B B HOT LEG WIDE RANGE RTD RC SAMPLE LINE ISOLATION VALVE (3RC7)

CONTROLS POST ACC. SAM. VLV(3RC-179)

PRZ SPRAY ISOLATION VALVE PRZ SPRAY ISOLATION PRZ PORV BLOCK VALVE PRZ STEAM SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ WATER SAMPLE ISOLATION PRZ PORV PRZ CODE SAFETY PRZ CODE SAFETY RV VENT ISOLATION RV VENT ISOLATION POST ACC SAMPLE PATH ISOL POST ACC SAMPLE PATH ISOL POST ACC SAMPLE TH ROTTLE RPS CABINET 3A1 RPS CABINET 3A2 RPS CABINET 381 RPS CABINET 382 RPS CABINET 3C1 RPS CABINET 3C2 RPS CABINET 3D1 RPS CABINET 3D2 RPS CABINET 3E1 GENERATOR WATER COOLER 3A GENERATOR WATER COOLER 3B INCORE INST HANDLING TANK SPENT FUEL POOL TO RC MAKEUP PUMP BLOCK SPENT FUEL POOL TO RC MAKEUP PUMP BLOCK ESV PUMP 3A SEAL WATER FLOW TRANSMITTER Bldg.

FLEL Safety Function RB 817 C,D AB 809 C,D AB 809 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 797 C,D RB 808 B,C RB 808 B,C RB 844 C,D RB 844 C,D RB 844 C,D RB 844 C,D AB 822 B

AB 758 A

RB 853 C

RB 853 B,C RB 808 B

RB 808 B

AB 809 B

RB 853 B,C RB 853 B,C RB 853 B,C RB 844 A,B,C RB 844 A,B,C RB 777 A,B RB 777 A

AB 758 A

AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E AB 822 A, B, C, D, E TB 775 D

TB 775 D

RB 797 A,C,D RB 777 B

RB 784 B

ESV 797 D

Page 18 of 23 Oconee Unit 3, SWEL-1, Base rEquipment List Unit Sys Type Number 3

SSW FT 1012 3

SSW FT 1013 3

SSW VA 0109 3

SSW VA 0119 3

SSW VA 0129 3

SSW VA 0139 3

SSW VA 0155 3

SSW VA 0156 3

SSW VA 0157 3

SYD BK PCB28 3

SYD BK PCB30 3

TO PU 0022 3

TO TK 0002 3

TO TN TBEH3A 3

TO TN TBEH3B 3

TO VA 0059 3

VS AH 0013 3

VS AH 0014 3

VS AH 0026 3

VS AH 0027 KG ELK BD CB05 KG ELK BD CB06 KG ELK BS OHXPHASE KO ELK BS OHYPHASE KO ELK BS OHZPHASE KO ELK PL EB5 KO ELK PL EB6 KO ELK SX CX KO ELK TF 0001 KO ELK TF CX K1 AG TK 0001 KI CO PS 063F K1 CO SV 20F1 K1 CO SV 20F2 KI CO SV 20P1 K1 CO SV 20P2 KI ELK BA KB1 KI ELK BC KC1 K1 ELK BD CB01 Ki ELK BD CB02 K1 ELK BD CB03 K1 ELK BD CB04 KI ELK BS GENACB13 K1 ELK BS MTFACB1 Description ESV PUMP.3B SEAL WATER FLOW TRANSMITFER ESV PUMP 3C SEAL WATER FLOW TRANSMITTER CCWP SEAL WATER REG. VALVE CCWP SEAL WATER REG. VALVE CCWP SEAL WATER REG. VALVE CCWP SEAL WATER REG. VALVE ESV PUMP SEAL SUPPLY VALVE ESV PUMP SEAL SUPPLY VALVE ESV PUMP SEAL SUPPLY VALVE 230KV AC POWER CIRCUIT BREAKER 28 (PCB-28) 230KV AC POWER CIRCUIT BREAKER 30 (PCB-30)

EFWPT AUX OIL PUMP EFW PUMP TURBINE OIL TANK FWPT 3A MAIN OIL TANK TERM BOX EH FWPT 3B MAIN OILTANKTERM BOX EH EFW PUMP TURBINE OIL PR VALVE AHU-3-13 AHU-3-14 OUTSIDE AIR BOOSTER FAN 'A' (F3-8)

OUTSIDE AIR BOOSTER FAN 'B' (F3-9)

CONTROL BOARD 05 CONTROL BOARD 06 KHU OVERHEAD BUS X PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Y PHASE TO 230 KV SWITCHYARD KHU OVERHEAD BUS Z PHASE TO 230 KV SWITCHYARD ELEC BOARD 05 ELEC BOARD 06 KEOWEE XFMR CX DISC SW MAIN TRANSFORMER TRANSFORMER CX AIR RECEIVER TANK GEN 1 C02 RELEASE PRESS SWITCH (63F/PS2_1)

GEN I C02 RELEASE VALVE GEN 1 C02 RELEASE VALVE GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

BATT BANK 1 BATT CHARGER 1 (KC-1)

CONTROL BOARD 01 CONTROL BOARD 02 CONTROL BOARD 03 CONTROL BOARD 04 13.8 KV BUS FROM GEN #1 TO ACB1 AND ACB3 13.8 KV BUS FROM ACB1 TO MAIN XFMR Bldg.

FLEL Safety Function ESV 797 D

ESV 797 D

INT 796 D

ESV 797 D

SYD 770 A, B, C, D, E SYD 770 A, B, C, D, E TB 775 C

TB 775 C

TB 775 D

TB 775 C

AB 838 A

KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 688 A,B,C,D,E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 683 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E KEO 675 A, B, C, D, E KEO 675 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 688 A, B, C, D, E KEO 702 A, B, C, D, E KEO 702 A, B, C, D, E Page 19 of 23 Oconee Unit 3, SWEL-I.fase 1 Equipment List Unit K1 K1 K1 K1 K1 K1 Ki K1 Ki K1 K1 K1 K1 K1 K1 K1 Ki K1 KI KI K1 K1 K1 Ki K1 K1 Ki K1 K1 Ki Ki K1 KI K1 Ki K1 Ki K1 K1 K1 Ki K1 K1 K1 Sys Type Number ELK CA 0103 ELK CA 0127 ELK CA iLC1 ELK CA 1LC2 ELK CA 1LC3 ELK CA 1MTC1 ELK CA 1MTC2 ELK MX IXA ELK PL 1DA ELK PL lEC1 ELK PL 1EC2 ELK PL 1EC3 ELK PL 1EC4 ELK PL lEC5 ELK PL 1TGP1 ELK PL EB1 ELK PL EB2 ELK PL EB3 ELK PL EB4 ELK PL EFBP1 ELK PL GBP ELK PL KA ELK PL MODP ELK SH 1X ELK SX 1E ELK SX 1X ELK TF 1E ELK TF lx ELK TN 0101 ELK TN 0102 ELK TN 0109 ELK TN 0113 ELK TN 0121 ELK TN 0123 GA HX 0001 GA HX 0002 GA HX 0003 GA HX 0004 GA HX 0005 GA HX 0006 GBO HX 0001 GBO LS 63TA GBO LS 63TB GBO PU 088A Description TERMINAL BOX 103 (WIRING ONLY)

TERMINAL BOX 127 LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 Ul MISC TERM CAB 1MTC1 Ul MISC TERM CAB 1MTC2 600V AC MCC IXA 125V DC DIST CENTER 1DA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 1)

ELEC BOARD 01 ELEC BOARD 02 ELEC BOARD 03 ELEC BOARD 04 EMERGENCY FEEDER BREAKER NO. 1 GENERATOR BREAKER PANEL 120V AC PPB KA MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR 1X Ul XFMR 1E DISC SW TRANSFORMER 1X DISCONNECT SWITCH EXCITATION TRANSFORMER 1E 600V AC SWGR 1X TRANSFORMER TERMINAL BOX 101 TERMINAL BOX 102 TERMINAL BOX 109 TERMINAL BOX 113 (WIRING ONLY)

TERMINAL BOX 121 (WIRING ONLY)

TERMINAL BOX 123 (WIRING ONLY)

GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLT0001)

TURB GUIDE BRNG OIL LEVEL SWITCH (1GBOLT0002)

AC BRNG OIL PUMP (88A)

Bldg.

FLEL KEO 675 KEO 683 KEO 688 KEO 688 KEO 688 KEO 675 KEO 675 KEO 683 KEO 675 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 KEO 688 KEO 688 KEO 688 KEO 688 KEO 702 KEO 702 KEO 683 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 KEO 683 KEO 683 KEO 683 KEO 683 KEO 683 KEO 695 KEO 695 KEO 695 KEO 695 KEO 695 KEO 695 KEO 667 KEO 675 KEO 675 KEO 667 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 20 of 23 Oconee Unit 3,,SWEL-1, Base 1 Equipment List Unit Sys Type Number K1 GBO PU 088D K1 GCS CA SS1A KI GCS CA SS1B K1 GEN GN 0001 K1 GEN PC GPC1 K1 GEN PL BPC1 K1 GEN PL NEUCUB K1 HPO HX 0001 K1 HPO HX 0002 K1 HPO HX 0003 K1 HPO HX 0004 K1 HPO HX 0005 KI HPO HX 0006 K1 HPO HX 0007 K1 HPO HX 0008 K1 HPO LS 63BLH KI HPO LS 63BLL K1 HPO PU 88HA K1 HPO PU 88HD K1 MT PS 0009 K1 MT TR 0001 K1 OG TK 0001 K1 OG TK 0002 K1 OG TK 0003 Description DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SS1A GOVERNOR SPEED CONTOL CABINET SS1B KEOWEE UNIT 1 GENERATOR GEN POT CUBICLE UNIT 1 (1 PER PHASE)

BUS POT CUBICLE UNIT 1 (1 PER PHASE)

NEUTRAL CUBICLE 1 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER LEVEL SWITCH (1HPOLS0001)

LEVEL SWITCH (1HPOLS0002)

AC GEN HP LIFT PUMP (88HA)

DC GEN HP LIFT PUMP (88HD)

TURBINE PIT PRESS SWITCH KEOWEE UNIT 1 TURBINE GOVERNOR ACTUATOR GOVERNOR OIL SUMP TANK GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A SPEED CONTROL MAGNETIC PICKUP 1B SPEED CONTROL MAGNETIC PICKUP 1C TURB SUMP LEVEL SWITCH (1TSLS0001)

TURB SUMP LEVEL SWITCH (1TSLS0002)

AC SUMP PUMP (88SA)

DC SUMP PUMP (88SD)

GEN COOL ISOL VALVE (1WL-11)

AIR RECEIVER TANK GEN 2 C02 RELEASE PRESS SWITCH (63F/PS2_2)

GEN 2 C02 RELEASE VALVE GEN 2 C02 RELEASE VALVE GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

GEN 2 C02 CYL RELEASE VALVE (RESERVE BANK)

BATT BANK 2 BATT CHARGER 2 (KC-2)

CONTROL BOARD 07 CONTROL BOARD 08 CONTROL BOARD 09 CONTROL BOARD 10 Bldg.

FLEL KEO 667 KEO 667 KEO 667 KEO 683 KEO 702 KEO 702 KEO 683 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 683 KEO 683 KEO 675 KEO 675 KEO 675 KEO 702 KEO 683 KEO 683 KEO 683 KEO 667 KEO 667 KEO 667 KEO 675 KEO 675 KEO 675 KEO 675 KEO 683 KEO 683 KEO 683 KEO 683 KEO 683 KEO 702 KEO 702 KEO 675 KEO 675 KEO 688 KEO 688 KEO 688 KEO 688 Safety Function.

A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E KI K1 K1 K1 K1 K1 K1 KI K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 K2 PMG DT PMG DT PMG DT TS LS TS LS TS PU TS PU WL VA AG TK CO PS CO SV CO SV CO SV CO SV ELK BA ELK BC ELK BD ELK BD ELK BD ELK BD MPULA MPU1B MPUIC 63SA 63SB 88SA 88SD 0011 0001 063F 20F3 20F4 20P3 20P4 KB2 KC2 CB07 CB08 CB09 CB1O Page 21 of 23 Oconee Uiiff3, SWEL-1, Base 1 Equipment List Unit Sys Type Number K2 ELK BS GENACB24 K2 ELK BS MTFACB2 K2 ELK CA 2LC1 K2 ELK CA 2LC2 K2 ELK CA 2LC3 K2 ELK CA 2MTC1 K2 ELK CA 2MTC2 K2 ELK MX 2XA K2 ELK PL 2DA K2 ELK PL 2EC1 K2 ELK PL 2EC2 K2 ELK PL 2EC3 K2 ELK PL 2EC4 K2 ELK PL 2EC5 K2 ELK PL 2TGP1 K2 ELK PL EBIO K2 ELK PL EB7 K2 ELK PL EB8 K2 ELK PL EB9 K2 ELK PL EFBP2 K2 ELK PL GBP K2 ELK PL KB K2 ELK PL MODP K2 ELK SH 2X K2 ELK SX 2E K2 ELK SX 2X K2 ELK TF 2E K2 ELK TF 2X K2 ELK TN 0201 K2 ELK TN 0202 K2 ELK TN 0203 K2 ELK TN 0227 K2 GA HX 0001 K2 GA HX 0002 K2 GA HX 0003 K2 GA HX 0004 K2 GA HX 0005 K2 GA HX 0006 K2 GBO HX 0001 K2 GBO LS 63TA K2 GBO LS 63TB K2 GBO PU 088A K2 GBO PU 088D K2 GCS CA SS2A Description 13.8 KV BUS FROM GEN #2 TO ACB2 AND ACB4 13.8 KV BUS FROM ACB2 TO MAIN XFMR LOGIC CABINET 1 LOGIC CABINET 2 LOGIC CABINET 3 U2 MISC TERM CAB 2MTC1 U2 MISC TERM CAB 2MTC2 600V AC MCC 2XA 125V DC DIST CENTER 2DA EXC CUBICLE 1 EXC CUBICLE 2 EXC CUBICLE 3 EXC CUBICLE 4 EXC CUBICLE 5 TURBINE GAUGE PANEL (UNIT 2)

ELEC BOARD 10 ELEC BOARD 07 ELEC BOARD 08 ELEC BOARD 09 EMERGENCY FEEDER BREAKER NO. 2 GENERATOR BREAKER PANEL 120V AC PPB KB MOTOR OPERATED DISCONNECT PANEL 600V AC SWGR 2X U2 XFMR 2E DISC SW TRANSFORMER 2X DISCONNECT SWITCH EXCTIATION TRANSFORMER 2E 13.8KV/600V AC SWGR 2X TRANSFORMER TERM BOX TB-201 TERM BOX TB-202 TERM BOX TB-203 TERM BOX TB-227 GEN AIR COOLER 1 GEN AIR COOLER 2 GEN AIR COOLER 3 GEN AIR COOLER 4 GEN AIR COOLER 5 GEN AIR COOLER 6 TURB GUIDE BRNG OIL COOLER TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLTOO01)

TURB GUIDE BRNG OIL LEVEL SWITCH (2GBOLTO002)

AC BRNG OIL PUMP (88A)

DC BRNG OIL PUMP (88D)

GOVERNOR SPEED CONTOL CABINET SS2A Bldg.

FL EL KEO 702 KEO 702 KEO 688 KEO 688 KEO 688 KEO 675 KEO 675 KEO 683 KEO 675 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 KEO 688 KEO 688 KEO 688 KEO 688 KEO 702 KEO 702 KEO 683 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 702 KEO 683 KEO 683 KEO 675 KEO 683 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 675 KEO 675 KEO 667 KEO 667 KEO 667 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 22 of 23 Oc6i1e Unit 3, SWEL-1, Base 1 Equipment List Unit Sys Type Number K2 GCS CA SS2B K2 GEN GN 0001 K2 GEN PC GPC2 K2 GEN PL BPC2 K2 GEN PL NEUCUB K2 HPO HX 0001 K2 HPO HX 0002 K2 HPO HX 0003 K2 HPO HX 0004 K2 HPO HX 0005

-K2 HPO HX 0006 K2 HPO HX 0007 K2 HPO HX 0008 K2 HPO LS 63BLH K2 HPO LS 63BLL K2 HPO PU 88HA K2 HPO PU 88HD K2 MT PS 0009 K2 MT TR 0001 K2 OG TK 0001 K2 OG TK 0002 K2 OG TK 0003 K2 PMG DT MPU1A K2 PMG DT MPUIB K2 PMG DT MPUIC K2 TS LS 63SA K2 TS LS 63SB K2 TS PU 88SA K2 TS PU 88SD K2 WL VA 0011 Description GOVERNOR SPEED CONTOL CABINET SS2B KEOWEE UNIT 2 GENERATOR GEN POT CUBICLE UNIT 2 (1 PER PHASE)

BUS POT CUBICLE UNIT 2 (1 PER PHASE)

NEUTRAL CUBICLE 2 GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER GEN THRUST BRNG COOLER LEVEL SWITCH (2HPOLS0001)

LEVEL SWITCH (2HPOLS0002)

AC GEN HP LIFT PUMP (88HA)

DC GEN HP LIFT PUMP (88HD)

TURB PIT PRESS SWITCH KEOWEE UNIT 2 TURBINE GOVERNOR ACTUATOR GOVERNOR OIL SUMP TANK GOVERNOR OIL PRESS TANK SPEED CONTROL MAGNETIC PICKUP 1A SPEED CONTROL MAGNETIC PICKUP 1B SPEED CONTROL MAGNETIC PICKUP 1C TURB SUMP LEVEL SWITCH (2TSLSO001)

TURB SUMP LEVEL SWITCH (2TSLS0002)

AC SUMP PUMP (88SA)

DC SUMP PUMP (885D)

GEN COOL ISOL VALVE (2WL-11)

Bldg.

FLEL KEO 667 KEO 683 KEO 702 KEO 702 KEO 683 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 667 KEO 683 KEO 683 KEO 675 KEO 675 KEO 675 KEO 683 KEO 683 KEO 683 KEO 683 KEO 667 KEO 667 KEO 667 KEO 675 KEO 675 KEO 675 KEO 675 KEO 683 Safety Function A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E Page 23 of 23 Oconee Unit 3, SWEL-1 Equipment Litr Unit Sys Type Number Description Bldg.

FL EL Safety Function 0

DA TK 000C DIESEL STARTING AIRTANK C SSF 777 B,C 0

EL CA SYTC1 SWYD TERMINAL CABINET 01 SYD 770 A, B, C, D, E 0

EL SH BIT05 SK1 CT4 TO STDBY BUS 1 FDR BKR SECTION BH1 796 A, B, C, D, E 0

EL TF OCT4 XFMR CT-4 BH3 796 A, B, C, D, E 0

FO TK 0003 SSF DIESEL OIL DAY TANK SSF 777 B,C 0

SSF BA DCSF DCSF SSF NORMAL BATTERY SSF 777 A, B, C, D, E 0

SSF MX XSF MCC XSF(600V)

SSF 777 A, B, C, D, E 0

SSF SH OTS1 OTS1 SSF ESSENTIAL SWGR 4160V SSF 777 A, B, C, D, E 0

SYD BC SY2 230KV SWYD BATTERY CHARGER SY2 SYD 770 A, B, C, D, E 0

SYD BD RB02 SWITCHYARD RELAY BOARD RB02 SYD 770 A, B, C, D0, E 0

SYD BD RF17 SWITCHYARD RELAY BOARD RF17 SYD 770 A, B, C, D, E 0

SYD BD SRF17 SWITCHYARD RELAY BOARD SRF17 SYD 770 A, B, C, D, E 0

SYD BK PCB08 230KV AC POWER CIRCUIT BREAKER 08 (PCB-08)

SYD 770 A, B, C, D, E 0

SYD PL DYC DC PANELBOARD C SYD 770 A, B, C, D, E 0

SYD PL DYE DC PANELBOARD E SYD 770 A, B, C, D, E 0

SYD PL SYDC1 SWITCHYARD DISTRIBUTION CENTER 1 SYD 770 A, B, C, D, E 0

SYD TF RBPT RED BUS POTENTIAL TRANSFORMER (EGPS)

SYD 770 A, B, C, D, E 0

VS AH 0042 AHU 0-42 HEATING AND A/C SSF BUILDING SSF 817 B,C 0

VS AH 0044EX6 SSF ON LINE EXHAUST FAN & MOTOR SSF 817 B,C 0

VS DA CDO1 SSF CONSTANT VENTILATION (VS-AH-0044EX1) EXHAUST FAN DAMPER SSF 817 B,C 0

VS PS SSFPS03 SSF ON-LINE VENTILATION SYSTEM SUPPLY FAN SSF 822 A, B, C, D, E 0

VS TT SSFCT2 HVAC TEMPERATURE CONTROLLER (FOR SSF-CP-1)

SSF 822 A, B, C, D, E 3

BAG BD 3AB3 CONTROL BOARD 3AB3 AB 822 A, B, C, D, E 3

BS VA 0004 RBS PUMP SUCTION ISOL AB 758 E

3 C

DM 00OB POLISHING DEMINERALIZER 3B TB 775 D

3 C

LT 0036 UST 3A LEVEL TB 838 D

3 C

PS 0227 CONDENSATE BOOSTER PUMP SUCTION HEADER PRESS LOW TB 775 D

3 C

TK 0003 SLURRY TANK TB 775 D

3 C

TK 000C UPPER SURGE TANK DOME TB 838 D

3 CC PL 0287 REMOTE STARTER ENCLOSURE FOR 3CCW-287 SSF 758 D

3 CC VA 0268 SSF ASW PUMP DISCH ISOL SSF 754 D

3 CRD CA CC2 CONTROL CABINETCC-2 AB 809 A

3 CRD CA CC5 CONTROL CABINET CC-5 AB 809 A

3 CS VA 0005 QUENCH TANK DRAIN RB 777 A, B, C 3

EHC CA EHC1 EHCCAB3EHC1 AB 809 D

3 EL BA 3CA CONTROL BATT 3CA AB 809 A, B, C, D, E 3

EL BA 3PA PWR BATT 3PA TB 796 A, B, C, D, E 3

EL BC 3CA CONTROL BATT CHGR 3CA AB 796 A, B, C, D, E 3

EL BC 3PA PWR BATT CHGR 3PA TB 796 A, B, C, D, E 3

EL BI 3DIC 120V STATIC INV 3DIC AB 796 A, B, C, D, E 3

EL BK 3A 240/120V 3A REGULATOR OUTPUT BKR AB 796 A, B, C, D, E 3

EL CA 3EB1 ELECTRICAL BOARD 3EB1 AB 822 A, B, C, D, E 3

EL CA 3MTC3 MISC TERM CAB 3MTC3 AB 809 A, B, C, D, E 3

EL CA 3TTC4 TURB TERM CAB 3TTC4 TB 796 A, B, C, D, E Page 1 of 3 Oconee Unit 3, SWEL-1 Equipment List Description Unit Sys Type Number 3

EL CA SGLC3 3

EL IR MC33 3

EL LX 3X2 3

EL LX 3X8 3

EL MX 3XAA 3

EL MX 3XGB 3

EL MX 3XJ 3

EL MX 3XL 3

EL MX 3XO 3

EL MX 3XS2 3

EL MX 3XT 3

EL PL 3CPS 3

EL PL 3EPSLP2 3

EL PL 3KRA 3

EL PL 3SKJ 3

EL PL 3TCPA 3

EL SH 3BIT02 3

EL SH 3TC01 3

EL SX 3KXBKU 3

EL TF 3XGA 3

EL TF 3XT 3

EL TN 2345 3

EL TN 2353 3

ES CA 3ESTC1 3

ESV PL 0001 3

ESV PT 0002 3

ESV TF 0003 3

FD FT 0153 3

FD LT 0082 3

FD PL 0368 3

FD PS 0383 3

FD PU 0003 3

FD VA 0086 3

FD VA 0218 3

HP VA 0004 3

HPI EP 0075 3

HPI FT 0157 3

HPI HX 000B 3

HPI HX O01A 3

HPI PL 0409 3

HPI PS 0357 3

HPI PU 0003 3

LP VA 0021 3

LPI PU 0001 Bldg.

FLEL Safety Function P

STEAM GEN LOGIC CABINET INSTRUMENT RACK 3MC-33 600V LC 3X02 600V LC 3X08 208V MCC 3XA-A MCC 3XGB 600V MCC 3XJ MCC 3XL MCC 3XO MCC 3XS2 MCC 3XT 3 POWDEX PANEL EPSL PANEL 3EPSLP2 120V PPB 3KRA 208/120V PPB 3SKJ TURB CONT PANEL 3TCPA RELAYS SECTION 3TC BUS 1 INCOMING FDR BKR SECTION BACKUP TRANSFER SWITCH 3KX XFMR 3XGA (600V TO 208V)

XFMR 3XT (600V TO 208V)

TERMINAL BOX TB-2345 TERMINAL BOX TB-2353 ESFAS ODD CH TERM CAB 3ESTC1 UNIT 3 ESV LOCAL CONTROL PANEL ESV TANK PRESSURE TRANSMITFER 600/240/120V 3SKN POWER TRANSFORMER 3A EFW HEADER FLOW TRANSMITTER SG 3A LEVEL TRANSMITTER REMOTE STARTER ENCLOSURE FOR 3FDW-368 FWPT 3A CONTROL OIL PRESS SWITCH TDEFW PUMP PRESS REG TD PUMP SEALS PRESS REG TD PUMP SEALS LETDOWN ISOLATION RCP SEAL INJECTION FLOW U3 RC MAKE UP PUMP FLOW LETDOWN COOLER 3B RC SEAL RETURN COOLER 3A REMOTE STARTER ENCLOSURE FOR 3HP-409 LETDOWN FLOW TEMP HIGH INTERLOCK HPI PUMP 3C BWST SUCTION ISOLATION 3LPI PUMP A AB 809 TB 775 TB 796 AB 796 TB 796 TB 796 AB 809 AB 771 AB 796 AB 796 AB 838 TB 775 AB 809 AB 809 AB 809 TB 796 BH3 796 TB 796 AB 796 TB 796 AB 838 AB 809 TB 796 AB 809 ESV 797 ESV 797 ESV 797 AB 783 RB 777 AB 809 TB 775 TB 775 TB 775 TB 775 RB 777 AB 783 RB 777 RB 777 AB 771 AB 796 AB 783 AB 758 AB 771 AB 758 A, B, C, D, E D

A, B, C, D, E A, B, C, D, E D

D D

A, B, C A, B, C, D, E A, B, C, D, E D

D A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E A, B, C, D, E B

D A, B, C, D, E D

D D

D B

B B

A,B,C B

A,B,C A,B,C,D D

Page 2 of 3 Oconee Unit 3, SWEL-1 Eq uipment List Unit Sys Type Number Description Bldg.

FLEL Safety Function 3

LPS FL 000B LPSW PUMP B STRAINER TB 775 D

3 LPS PU 0001 LPSW PUMP 3A TB 775 D

3 LPS SV 0203 MOTOR DRIVEN EFDW PUMP MTR 3B COOLING WATER FLOW TB 775 C

3 MS PS 0088 MAIN STEAM PRESS SWITCH (3MS-28)

TB 796 D

3 MS PT 1007 AFIS ANALOG CHANNEL 3 - 3B S/G HDR PRESSURE TB 796 D

3 MS VA 0031 TURBINE BYPASS VALVE TB 796 D

3 MS VA 0036 FWPT ISOLATION TB 796 D

3 MS VA 0043 FWPT 3B STOP VALVE (MS-43/SV12)

TB 775 D

3 MS VA 0093 TDEFW MS ISOLATION VALVE TB 775 D

3 PPS CA 0001 RPS A/ES Al AB 822 A, B, C, D, E 3

PPS CA 0012 ES VOTER ODD AB 822 A, B, C, D, E 3

PPS CA 0018 ES STATUS EVEN AB 822 A, B, C, D, E 3

RBC AH 0020C RBCU FAN 3C RB 825 E

3 RBC HX OOOA RB COOLING UNIT 3A RB 817 E

3 RC LT 0004P1 PRZ LEVEL TRANSMITTER RB 797 B,C 3

RC LT 0123 3A RCS HOT LEG LVL (ICCM A)

AB 809 B

3 RC PL 3RC1 3RC-1 SPRAY VALVE CONTROL BOX AB 796 B

3 RC PT 0022P RC PRESS XMTR (ES CH B)

RB 825 B

3 RC PT 0226 U3 RC LOOP B PRESSURE RB 817 C,D 3

RC RD 0084A REACTOR OUTLET LOOP 3A RB 844 C,D 3

RC VA 0066 PRZ PORV RB 853 B,C 3

RC VA 0159 RV VENT ISOLATION RB 844 A,B,C 3

SC HX O00B GENERATOR WATER COOLER 3B TB 775 D

3 SF TK 0002 INCORE INST HANDLING TANK RB 797 A,C,D 3

TO VA 0059 EFW PUMP TURBINE OIL PR VALVE TB 775 C

3 VS AH 0014 AHU-3-14 AB 838 A

KO ELK TF 0001 MAIN TRANSFORMER KEO 702 A, B, C, D, E K1 CO SV 20P2 GEN 1 C02 CYL RELEASE VALVE (MAIN BANK)

KEO 702 A, B, C, D, E K1 ELK BA KB1 BATTBANK1 KEO 675 A, B, C, D, E KI ELK BD CBO1 CONTROL BOARD 01 KEO 688 A, B, C, D, E K1 ELK CA 1MTC1 U1 MISC TERM CAB 1MTC1 KEO 675 A, B, C, D, E Ki ELK MX IXA 600V AC MCC iXA KEO 683 A, B, C, D, E KI ELK TN 0109 TERMINAL BOX 109 KEO 683 A, B, C, D, E K1 OG TK 0003 GOVERNOR OIL PRESS TANK KEO 683 A, B, C, D, E K1 PM DT MPU1A SPEED CONTROL MAGNETIC PICKUP 1A KEO 667 A, B, C, D, E K1 WL VA 0011 GEN COOL ISOL VALVE (2WL-11)

KEO

683 A, B, C, D, E K2 ELK BC KC2 BATT CHARGER 2 (KC-2)

KEO 675 A, B, C, D, E K2 ELK CA 2MTC1 U2 MISC TERM CAB 2MTC1 KEO 675 A, B, C, D, E K2 ELK PL 2DA 125V DC DIST CENTER 2DA KEO 675 A, B, C, D, E K2 ELK TN 0203 TERM BOX TB-203 KEO 675 A, B, C, D, E K2 GA HX 0003 GEN AIR COOLER 3 KEO 667 A, B, C, D, E K2 HPO PU 88HA AC GEN HP LIFT PUMP (88HA)

KEO 675 A, B, C, D, E K2 TS LS 63SB TURB SUMP LEVEL SWITCH (2TSLS0002)

KEO 675 A, B, C, D, E Page 3 of 3 Oconee Unit 3, SWEL-2,, Base-2 and Rapid Drawdown List Safety EQO. ID Description SYs EQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool 3SFPU0001 3A SF Pump SF Pump Building 783' 9" 255 Cooling 05/Horizonal Aux.

SF Pool 3SFPU0002 3B SF Pump SF Pump Building 783' 9" 255 Cooling BWST Recirculation 06/Vertical Aux.

SF Pool 3SFPU0004 Pump SF Pump Building 783' 9" 255 Cooling 05/Horizonal Aux.

SF Pool 3SFPU0003 3C SF Pump SF Pump Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHXOOOA A SF Cooler SF Exchanger Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHXOOOB B SF Cooler SF Exchanger Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHXOOOC C SF Cooler SF Exchanger Building 783' 9" 255 Cooling 21/Tank-heat Aux SF Pool 3SFFLOOOA 3A SF Filter SF exchanger Building 783' 9" 254 Cooling 21/Tank-heat Aux SF Pool 3SFFLOOOB 3B SF Filter SF exchanger Building 783' 9" 254 Cooling 21/Tank-heat Aux SF Pool 3SFDMOO01 3 SF Demin SF exchanger Building 783' 9" 254 Cooling Page 1 of 1 Oconee Unit 3, SWEL-2 List Safety EQ. ID Description S

EQ. Class BLDG Col #

Elev Room #

Function 05/Horizonal Aux.

SF Pool 3SFPU0001 3A SF Pump SF Pump Building 783' 9" 255 Cooling 05/Horizonal Aux.

SF Pool 3SFPU0002 3B SF Pump SF Pump Building 783' 9" 255 Cooling 05/Horizonal Aux.

SF Pool 3SFPU0003 3C SF Pump SF Pump Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHXOOOA A SF Cooler SF Exchanger Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHX000B B SF Cooler SF Exchanger Building 783' 9" 255 Cooling 21/Heat Aux.

SF Pool 3SFHX000C C SF Cooler SF Exchanger Building 783' 9" 255 Cooling Page 1 of 1

United States Nuclear Regulatory Commission Seismic Walkdown Report November 27, 2012 List of Voluntary Regulatory Commitments The following commitment table identifies those actions committed to by Duke Energy Carolinas, LLC (Duke Energy) in this submittal. Other actions discussed in the submittal represent intended or planned actions by Duke Energy. They are described to the Nuclear Regulatory Commission (NRC) for the NRC's information and are not regulatory commitments.

Contained in the NRC endorsed EPRI document (EPRI 1025286) that provides guidance to satisfy the NRC requested information are the following statements:

Section 8, Submittal Report: For those cases where some SWEL items were inaccessible within the 180-day reporting period, an updated submittal report should be submitted later.

Appendix H, Item d: Provide a schedule for completing any licensing basis evaluations not finished by the time the report of this program must be submitted to the NRC.

Therefore, the following voluntary commitments are being made to satisfy the EPRI Guidance:

Commitment Completion Date Duke Energy will submit an update report after walkdowns 1

of the ONS Unit 1, and common, inaccessible components July 1, 2013 described in Enclosure 1 are complete.

Duke Energy will submit an update report after walkdowns 2

of the ONS Unit 2 inaccessible components described in April 15, 2014 are complete.

Duke Energy will submit an update report after walkdowns 3

of the ONS Unit 3 inaccessible components described in September 1, 2014 are complete.

(Note: Inaccessible items that are common to all 3 units are listed in all 3 enclosures but will be walked down and reported in the Unit 1 update report only.)

ML12347A252

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