ML081540380

Enclosure 2, Design Calculation Cover Sheet, EPM Calculation 1906-07-06 Task 7.6 NFPA 805 Fire Ignition Fire Ignition Frequencies.

ML081540380
Person / Time
Site:	Cooper
Issue date:	05/08/2008
From:	Engineering Planning & Management
To:	NRC Region 4
References
NEDC 08-032
Download: ML081540380 (176)

Text

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX3 3

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX Page: 2 of 7 NEDC: NEDC 08-032 Rev. Number: 0 Nebraska Public Power District DESIGN CALCULATION CROSS-REFERENCE INDEX ITEM REV. PENDING CHANGES NO. DESIGN INPUTS NO. TO DESIGN INPUTS NUREG/CR-6850, EPRI/NRC-RES Fire PRA September 1

Methodology for Nuclear Power Facilities 2005 Kaplan, On a Two-Stage Bayesian Procedure for Determining Failure Rates from Experiential Data, 2 1983 IEEE Transactions on Power Apparatus and Systems, Volume PAS-102, pp. 195-202.

ANS Standard BSR/ANS 58.23, FPRA 3 April 2006 Methodology Standard EPRI Technical Report, Fire Event Data Base and 4 Generic Ignition Frequency Model for US Nuclear 2002 Power Plants FAQ 06-0016, Clarification/enhancement of Ignition Source counting guidance for Electrical 5 1 Cabinets in NUREG/CR-6850, supporting NFPA-805 Fire PRA application FAQ 06-0017, Clarification/enhancement of Ignition Source counting guidance for High Energy 6 2 Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application FAQ 06-0018, Clarification/enhancement of Ignition Source counting guidance for Main Control 7 1 Board (MCB) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application FAQ 07-0031, Clarification/enhancement of Ignition Source counting guidance for 8 0 miscellaneous items in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

RES & EPRI Team Response to FAQ 07-0031 0

9 NUREG/CR-6850, EPRI TR-1011989, Clarification of Miscellaneous Ignition Source Binning Issues 10/11/2007 FAQ 07-0035, Clarification/enhancement for Ignition Source counting guidance for High Energy 10 0 Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

11 SAP Equipment Information 12 CNS Combustible Loading Calculation 4.1 10CFR50 Appendix R Post-Fire Safe and 13 Alternative Shutdown Analysis Report 14 CNS Fire Hazards Analysis Fire Hazards Analysis Figure 1, Fire Area Drawing 15 4 Elevations 859-9, 877-6, 881-9 & 882-6

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX3 3

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX Page: 3 of 7 NEDC: NEDC 08-032 Rev. Number: 0 ITEM REV. PENDING CHANGES NO. DESIGN INPUTS NO. TO DESIGN INPUTS Fire Hazards Analysis Figure 2, Fire Area Drawing 16 7 Elevation 903-6.

Fire Hazards Analysis Figure 3, Fire Area Drawing 17 5 Elevation 918-0 Fire Hazards Analysis Figure 4, Fire Area Drawing 18 5 Elevation 932-6 Fire Hazards Analysis Figure 5, Fire Area Drawing 19 4 Elevations 958-3, 976-0 & 1001-0 Fire Hazards Analysis Figure 6, Fire Area Drawing 20 3 Miscellaneous Buildings Elevation 903-6 Drawing 2050, General Arrangement Turbine 21 N12 Building Basement Floor Plan Drawing 2051, Turbine Building General 22 N23 Arrangement Mezzanine Floor Plan Drawing 2052, General Arrangement Turbine 23 N30 Building Operating Floor Plan Drawing 2056, General Arrangement Intake 24 N12 Structure Plan & Sections Drawing 2059, General Arrangement Reactor 25 N05 Building Plan Below Grade Drawing 2060, General Arrangement Reactor 26 N11 Building Plan at Elev. 903-6 Drawing 2061, General Arrangement Reactor 27 N09 Building Plan at Elev. 931-6 Drawing 2062, General Arrangement Reactor 28 N06 Building Plan at Elev. 958-3 Drawing 2063, General Arrangement Reactor 29 N06 Building Plan at Elev. 976-0 Drawing 2064, General Arrangement Reactor 30 N08 Building Plan at Elev. 1001-0 Drawing 2067, General Arrangement Radwaste 31 N10 Building Plans at Elev. 877-6 & 903-6 Drawing 2068, General Arrangement Radwaste 32 N10 Building Plans at Elev. 918-0 & 934-0 Drawing 2072, General Arrangement Augmented 33 N03 Radwaste Building Plans

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX3 3

ATTACHMENT 2 DESIGN CALCULATION CROSS-REFERENCE INDEX Page: 4 of 7 NEDC: NEDC 08-032 Rev. Number: 0 Nebraska Public Power District DESIGN CALCULATION CROSS-REFERENCE INDEX ITEM REV.

NO. AFFECTED DOCUMENTS NUMBER

ATTACHMENT 3 AFFECTED DOCUMENT SCREENING ATTACHMENT 3 AFFECTED DOCUMENT SCREENING Page: 5 of 7 NEDC: NEDC 08-032 Rev. Number: 0 The purpose of this form is to assist the Preparer in screening new and revised design calculations to determine potential impacts to procedures and plant operations.1 SCREENING QUESTIONS YES NO UNCERTAIN

1. Does it involve the addition, deletion, or manipulation of a component or components which could impact a system lineup

[ ] [X] [ ]

and/or checklist for valves, power supplies (breakers), process control switches, HVAC dampers, or instruments?

2. Could it impact system operating parameters (e.g., [ ] [X] [ ]

temperatures, flowrates, pressures, voltage, or fluid chemistry)?

3. Does it impact equipment operation or response such as valve [ ] [X] [ ]

closure time?

4. Does it involve assumptions or necessitate changes to the [ ] [X] [ ]

sequencing of operational steps?

5. Does it transfer an electrical load to a different circuit, or impact [ ] [X] [ ]

when electrical loads are added to or removed from the system during an event?

6. Does it influence fuse, breaker, or relay coordination? [ ] [X] [ ]

7. Does it have the potential to affect the analyzed conditions of [ ] [X] [ ]

the environment for any part of the Reactor Building, Containment, or Control Room?

8. Does it affect TS/TS Bases, USAR, or other Licensing Basis [ ] [X] [ ]

documents?

9. Does it affect DCDs? [ ] [X] [ ]

10. Does it have the potential to affect procedures in any way not

[ ] [X] [ ]

already mentioned (refer to review checklists in Procedure EDP-06)? If so, identify:

If all answers are NO, then additional review or assistance is not required.

If any answers are YES or UNCERTAIN, then the Preparer shall obtain assistance from the System Engineer and other departments, as appropriate, to determine impacts to procedures and plant operations. Affected documents shall be listed on Attachment 2.

ATTACHMENT 4 DESIGN CALCULATION SHEET Page: 6 of 7 NEDC: NEDC 08-032 Rev. Number: 0 Nebraska Public Power District DESIGN CALCULATIONS SHEET PURPOSE:

To estimate the fire ignition frequencies for each fire compartment and ignition source, including both fixed sources and transient sources ASSUMPTIONS:

The analysis model described in this task is based on the following assumptions as noted in NUREG/CR-6850:

• Fire ignition frequencies remain constant over time;

• Among the plants, the generic ignition frequency is the same for the same equipment type, regardless of differences in the quantity and characteristics of the equipment type that may exist among the plants;

• Within each plant, the likelihood of fire ignition is the same across an equipment type. For example, pumps are assumed to have the same fire ignition frequency regardless of size, usage level, working environment, etc.

METHODOLOGY:

This task is organized into the following eight steps:

• Mapping plant ignition sources to generic sources,

• Plant fire event data collection and review,

• Plant specific updates of generic ignition frequencies,

• Mapping plant-specific locations to generic locations,

• Location weighting factors,

• Fixed fire ignition source counts,

• Ignition source weighting factors, and

• Ignition source and compartment fire frequency evaluation.

CONCLUSION:

The fixed ignition results are provided in Attachment A. Table A-1 Fire Compartment Ignition Frequencies gives the total fire ignition frequencies (which includes both fixed and transient) for each fire compartment and Table A-2 Fire Zone Ignition Frequencies provides the total ignition frequency at the fire zone level. Attachment B provides the detailed fixed ignition source worksheets and Attachment C provides the details of the transient sources analysis.

REFERENCES:

• NUREG/CR-6850, EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities, September 2005.

• Kaplan, On a Two-Stage Bayesian Procedure for Determining Failure Rates from Experiential Data, IEEE Transactions on Power Apparatus and Systems, Volume PAS-102, 1983, pp. 195-202.

• ANS Standard BSR/ANS 58.23, FPRA Methodology Standard, April 2006.

• EPRI Technical Report, Fire Event Data Base and Generic Ignition Frequency Model for US Nuclear Power Plants, 2002.

ATTACHMENT 4 DESIGN CALCULATION SHEET Page: 7 of 7 NEDC: NEDC 08-032 Rev. Number: 0 Nebraska Public Power District DESIGN CALCULATIONS SHEET

• FAQ 06-0016, Revision 1, Clarification/enhancement of Ignition Source counting guidance for Electrical Cabinets in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

• FAQ 06-0017, Revision 2, Clarification/enhancement of Ignition Source counting guidance for High Energy Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

• FAQ 06-0018, Revision 1, Clarification/enhancement of Ignition Source counting guidance for Main Control Board (MCB) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

• FAQ 07-0031, Revision 0, Clarification/enhancement of Ignition Source counting guidance for miscellaneous items in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

• RES & EPRI Team Response to FAQ 07-0031 NUREG/CR-6850, EPRI TR-1011989, Clarification of Miscellaneous Ignition Source Binning Issues, Final Revision 0 - 10/11/2007

• FAQ 07-0035, Revision 0, Clarification/enhancement for Ignition Source counting guidance for High Energy Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

• SAP Equipment Information

• CNS Combustible Loading Calculation, Rev. 4.1

• 10CFR50 Appendix R Post-Fire Safe and Alternative Shutdown Analysis Report

• CNS Fire Hazards Analysis

• Fire Hazards Analysis Figure 1, Fire Area Drawing Elevations 859-9, 877-6, 881-9 & 882-6.

• Fire Hazards Analysis Figure 2, Fire Area Drawing Elevation 903-6.

• Fire Hazards Analysis Figure 3, Fire Area Drawing Elevation 918-0.

• Fire Hazards Analysis Figure 4, Fire Area Drawing Elevation 932-6.

• Fire Hazards Analysis Figure 5, Fire Area Drawing Elevations 958-3, 976-0 & 1001-0.

• Fire Hazards Analysis Figure 6, Fire Area Drawing Miscellaneous Buildings Elevation 903-6.

• Drawing 2050, General Arrangement Turbine Building Basement Floor Plan, Rev. N12.

• Drawing 2051, Turbine Building General Arrangement Mezzanine Floor Plan, Rev. N23.

• Drawing 2052, General Arrangement Turbine Building Operating Floor Plan, Rev. N30.

• Drawing 2056, General Arrangement Intake Structure Plan & Sections, Rev. N12.

• Drawing 2059, General Arrangement Reactor Building Plan Below Grade, Rev. N05.

• Drawing 2060, General Arrangement Reactor Building Plan at Elev. 903-6, Rev. N11.

• Drawing 2061, General Arrangement Reactor Building Plan at Elev. 931-6, Rev. N09.

• Drawing 2062, General Arrangement Reactor Building Plan at Elev. 958-3, Rev. N06.

• Drawing 2063, General Arrangement Reactor Building Plan at Elev. 976-0, Rev. N06.

• Drawing 2064, General Arrangement Reactor Building Plan at Elev. 1001-0, Rev. N08.

• Drawing 2067, General Arrangement Radwaste Building Plans at Elev. 877-6 & 903-6, Rev. N10.

• Drawing 2068, General Arrangement Radwaste Building Plans at Elev. 918-0 & 934-0, Rev. N10.

• Drawing 2072, General Arrangement Augmented Radwaste Building Plans, Rev. N03.

ATTACHMENTS:

Attachment A - Fixed Ignition Source Analysis Attachment B - Detailed Fixed Ignition Source Worksheets Attachment C - Transient Ignition Sources Attachment D - Fire Events

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 2 of 169 Table of Contents 1.0 PURPOSE/OBJECTIVE ...........................................................................................................3 2.0 DESIGN INPUTS ......................................................................................................................3 3.0 EVALUATION...........................................................................................................................3 3.1 General Task Objectives and Approach......................................................................... 3 3.2 Assumptions ..................................................................................................................... 8 3.3 Input from Other Tasks .................................................................................................... 8 3.4 Procedure .......................................................................................................................... 8 3.4.1 Step 1: Mapping Plant Ignition Sources to Generic Sources........................................ 8 3.4.2 Step 2: Plant Fire Event Data Collection and Review................................................... 8 3.4.3 Step 3: Plant Specific Updates of Generic Ignition Frequencies ................................ 10 3.4.4 Step 4: Mapping Plant-Specific Locations to Generic Locations ................................ 10 3.4.5 Step 5: Location Weighting Factors............................................................................ 11 3.4.6 Step 6: Fixed Fire Ignition Source Counts .................................................................. 11 3.4.7 Step 7: Ignition Source Weighting Factors ................................................................. 16 3.4.8 Step 8: Ignition Source and Compartment Fire Frequency ........................................ 21 3.5 Uncertainty ...................................................................................................................... 21

4.0 CONCLUSION

S .....................................................................................................................22

5.0 REFERENCES

.......................................................................................................................23 List of Tables Table 3-1 Fire Frequency Bins and Generic Frequencies ......................................................... 5 Table 3-2 Fire Event Summary..................................................................................................... 9 Table 3-3 Generic Plant Location Descriptions ....................................................................... 10 Table 3-4 Description of Transient Fire Influencing Factors .................................................. 19 Table 4-1 BIN # vs Fixed/Transient Ignition Source Category ................................................ 22 Attachments Attachment A - Fixed Ignition Source Analysis ....................................................................... 26 Table A Fire Compartment Ignition Frequencies....................................................... 27 Table A Fire Zone Ignition Frequencies ..................................................................... 28 Attachment B - Detailed Fixed Ignition Source Worksheets................................................... 32 Attachment C - Transient Ignition Sources ............................................................................ 151 Table C Fire Zone Self-Ignited Cable and Junction Box Ignition Frequencies ..... 152 Table C Location Weighting Factors and Fire Influencing Factors ....................... 156 Table C Transient Ignition Frequencies ................................................................... 160 Attachment D - Fire Events ...................................................................................................... 164 Table D Fire Event Assessment ................................................................................ 165

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 3 of 169 1.0 PURPOSE/OBJECTIVE Cooper Nuclear Station is transitioning to NFPA 805 as part of the design basis for the Fire Protection Program. As part of the transition process, a Fire PRA is required to be developed and quantified for the entire plant. The Fire PRA follows the guidance in NUREG/CR-6850 (Ref. 1) and is performed to the ANS Fire PRA quality standard (Ref. 3). This calculation file documents the work and results of Task 7.6 Fire Ignition Frequencies.

The purpose of this task is to estimate the fire ignition frequencies for each fire compartment and ignition source. The ignition frequencies for both fixed sources and transient sources have been determined.

There are number of Frequently Asked Questions (FAQ) outstanding that impact this analysis. As these FAQs are resolved, the analysis and results may need to be revised to address the resolutions.

2.0 DESIGN INPUTS No design inputs are used in this report. The source of the data that is used in the report is provided in the references listed in Section 5.0.

3.0 EVALUATION This section describes the procedure for estimating the fire ignition frequencies associated with fire ignition sources. Generic ignition frequencies that can be specialized to plant conditions in terms of plant characteristics and plant fire event experience are provided. Volume 2, Section 6 of NUREG/CR-6850 (Ref. 1) was used as the guideline for the scope of this task.

3.1 General Task Objectives and Approach This task estimates the fire ignition frequency for each fire compartment, based on fire ignition frequencies for individual ignition sources located in those compartments. A generic set of fire-ignition frequencies for various generic equipment types from NUREG/CR-6850 was used as a starting point. The fire ignition sources are referred to as ignition frequency bins, based on plant location and equipment type. The definition of each bin is found in NUREG/CR-6850. Table 3-1 provides the list of these bins and their respective generic mean frequencies. The operating mode (i.e., whether or not the plant is in power operation) used for collecting the fire event data for each bin is also noted in that table. NUREG/CR-6850 Appendix C provides a discussion of the basis of the frequencies and their derivation method. The underlying fire event data in NUREG/CR-6850 was taken from EPRIs Fire Events Database (FEDB) (Ref. 4). NUREG/CR-6850 allows for single stage Bayesian update of generic frequencies with plant specific data. However, for Cooper, the plant specific fire history did not yield sufficient data to provide a basis for Bayesian update.

Bayesian update was not used for Cooper.

Different fire types can be postulated for some of the ignition sources. For example, the bin plant-wide components/pumps can refer to both electric and oil fires. In those cases, Table 3-1 provides a split fraction for each fire type. The split fraction was determined according to fire events in the FEDB. Continuing with the plant-wide-components/pumps example, the pump fire events in the database were reviewed and classified as oil or electrical fires. This classification serves as the basis for the split fractions provided in NUREG/CR-6850.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 4 of 169 The frequencies provided in Table 3-1 apply to all relevant equipment items within a plant. For example, in the case of batteries, the mean frequency, 7.5E-04 per reactor year, applies to all battery sets of a unit that provides backup power to the DC buses. If there are two battery sets associated with one unit, the fire frequency per battery set would be 3.75E-04 per reactor year. If there are four battery sets in another one unit plant, the mean frequency at that plant would be 1.875E-04 per reactor year for each battery set.

The quantification process needs the fire frequency associated with a compartment or zone. For this analysis all parameters were evaluated at the zone level. Compartment level frequency is calculated from the sum of all frequencies, IS,J, associated with the ignition sources present in the compartment. The ignition source frequencies IS,J of individual source are estimated from the following equation:

IS,J = ISWLWIS,J ,L where:

IS Plant-level fire frequency associated with ignition source IS WL Location weighting factor associated with the ignition source WIS,J,L Ignition source weighting factor reflecting the quantity of the ignition source type present in compartment J of location L (WIS,J,L = WIS,L / nIS,J,L WIS,L Quantity of ignition source type present in the plant nIS,J Quantity of ignition source type present in compartment J Plant-level fire frequencies (i.e., IS) are either taken directly from Table 3-1 or after a Bayesian update using plant-specific fire experience. Location weighting factor, WL, adjusts the frequencies for those situations where a common location (e.g., turbine building) is shared between multiple units. For example, if one turbine building serves two units, then 2.0 will be used for location weighting factor.

The ignition source weighting factor, in general terms, is the fraction of an ignition source type found in a specific compartment. As noted earlier, if there are two battery sets associated with a unit and one of them is in compartment J, 0.5 should be used for the ignition source weighting factor associated with the batteries found in compartment J. Therefore, to establish the ignition source weighting factors, it is necessary to obtain a count for each room of every relevant item (equipment) in the fire PRA equipment list. Also, the combination of the two factors (i.e., WLWIS,J,L) accounts for the fraction of an equipment type in a multiunit site found in a specific compartment of the unit being studied.

The compartment level fire frequency would then be calculated from:

J ,L = ISWLWIS,J ,L (Summed over all individual ignition sources IS in compartment J of location L)

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 5 of 169 Table 3-1 Fire Frequency Bins and Generic Frequencies BIN # Location Ignition Source Mode Generic Freq Split fractions for Fire Type Electrical Oil Transient Hotwork Hydrogen HEAF1 1 Battery Room Batteries All 7.5E-04 1.00 0.00 0.00 0.00 0.00 0.00 2 Containment PWR Reactor Coolant Pump Power 6.1E-03 0.14 0.86 0.00 0.00 0.00 0.00 3 Containment PWR Transients and hotwork Power 2.0E-03 0.00 0.00 0.44 0.56 0.00 0.00 4 Control Room Main Control Board All 2.1E-03 1.00 0.00 0.00 0.00 0.00 0.00 Control/Aux/Reactor Cable fires caused by 5 Power 1.6E-03 0.00 0.00 0.00 1.00 0.00 0.00 Building welding and cutting Control/Aux/Reactor Transient fires caused 6 Power 9.7E-03 0.00 0.00 0.00 1.00 0.00 0.00 Building by welding and cutting Control/Aux/Reactor 7 Transients Power 3.9E-03 0.00 0.00 1.00 0.00 0.00 0.00 Building Diesel Generator 8 Diesel Generators All 2.1E-02 0.16 0.84 0.00 0.00 0.00 0.00 Room Plant-Wide 9 Air Compressors All 2.4E-03 0.83 0.17 0.00 0.00 0.00 0.00 Components Plant-Wide 10 Battery Chargers All 1.8E-03 1.00 0.00 0.00 0.00 0.00 0.00 Components Plant-Wide Cable fires caused by 11 Power 2.0E-03 0.00 0.00 0.00 1.00 0.00 0.00 Components welding and cutting Plant-Wide Cable Run (Self-ignited 12 All 4.1E-03 1.00 0.00 0.00 0.00 0.00 0.00 Components cable fires)

Plant-Wide 13 Dryers (Note 2) All 2.6E-03 0.00 1.00 0.00 0.00 0.00 0.00 Components Plant-Wide 14 Electric motors All 4.6E-03 1.00 0.00 0.00 0.00 0.00 0.00 Components Plant-Wide 15 Electrical Cabinets All 4.5E-02 1.00 0.00 0.00 0.00 0.00 0.00 Components High energy arcing Plant-Wide faults (Low-Voltage 16a All 4.8E-04 0.00 0.00 0.00 0.00 0.00 1.00 Components Panels 480-1000V)

(Note 3)

High energy arcing faults (Medium-Voltage Plant-Wide 16b Panels greater than All 1.4E-03 0.00 0.00 0.00 0.00 0.00 1.00 Components 1000V)

(Note 3)

Plant-Wide 17 Hydrogen Tanks All 1.7E-03 0.00 0.00 0.00 0.00 1.00 0.00 Components

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 6 of 169 BIN # Location Ignition Source Mode Generic Freq Split fractions for Fire Type 1

Electrical Oil Transient Hotwork Hydrogen HEAF Plant-Wide 18 Junction box All 1.9E-03 1.00 0.00 0.00 0.00 0.00 0.00 Components Plant-Wide 19 Misc. Hydrogen Fires All 2.5E-03 0.00 0.00 0.00 0.00 1.00 0.00 Components Plant-Wide Off-gas/H2 Recombiner 20 Power 4.4E-02 0.00 0.00 0.00 0.00 1.00 0.00 Components (BWR)

Plant-Wide 21 Pumps All 2.1E-02 0.54 0.46 0.00 0.00 0.00 0.00 Components Plant-Wide 22 RPS MG sets Power 1.6E-03 1.00 0.00 0.00 0.00 0.00 0.00 Components Plant-Wide 1.00 23a Transformers (Oil filled) All 9.9E-03 0.00 0.00 0.00 0.00 0.00 Components (Note 4)

Plant-Wide 1.00 23b Transformers (Dry) All 9.9E-03 0.00 0.00 0.00 0.00 0.00 Components (Note 4)

Plant-Wide Transient fires caused 24 Power 4.9E-03 0.00 0.00 0.00 1.00 0.00 0.00 Components by welding and cutting Plant-Wide 25 Transients Power 9.9E-03 0.00 0.00 1.00 0.00 0.00 0.00 Components Plant-Wide 26 Ventilation Subsystems All 7.4E-03 0.95 0.05 0.00 0.00 0.00 0.00 Components Transformer -

27 Transformer Yard Power 6.0E-03 1.00 0.00 0.00 0.00 0.00 Catastrophic Transformer - Non 28 Transformer Yard Power 1.2E-02 1.00 0.00 0.00 0.00 0.00 Catastrophic Yard transformers 29 Transformer Yard Power 2.2E-03 1.00 0.00 0.00 0.00 0.00 0.00 (Others) 30 Turbine Building Boiler All 1.1E-03 0.00 1.00 0.00 0.00 0.00 0.00 Cable fires caused by 31 Turbine Building Power 1.6E-03 0.00 0.00 0.00 1.00 0.00 0.00 welding and cutting 32 Turbine Building Main feedwater pumps Power 1.3E-02 0.11 0.89 0.00 0.00 0.00 0.00 Turbine Generator 33 Turbine Building Power 3.9E-03 1.00 0.00 0.00 0.00 0.00 0.00 (T/G) Excitor 34 Turbine Building T/G Hydrogen Power 6.5E-03 0.00 0.00 0.00 0.00 1.00 0.00 35 Turbine Building T/G Oil Power 9.5E-03 0.00 1.00 0.00 0.00 0.00 0.00 Transient fires caused 36 Turbine Building Power 8.2E-03 0.00 0.00 0.00 1.00 0.00 0.00 by welding and cutting 37 Turbine Building Transients Power 7.4E-03 0.00 0.00 1.00 0.00 0.00 0.00 Equipment Not Ignition Equipment Not N/A Source All 0.0E00 0.00 0.00 0.00 0.00 0.00 0.00 Ignition Source (Note 5)

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 7 of 169 Note 1: See NUREG/CR-6850 (Ref. 1), Appendix M for a description of high-energy arcing fault fires.

Note 2: Bin #13 is not included in Table 6-1 of NUREG/CR-6850 (Ref. 1). However, Bin #13 is described in Appendix C of the same document and was therefore included here.

Note 3: Bins #16a and #16b were originally included in a single Bin #16 in Table 6-1 of NUREG/CR-6850 (Ref. 1). However, based on FAQ

1. 06-0017 (Ref. 6), two separate bins were required to address high energy arc faults for low voltage equipment and also for medium voltage equipment.

Note 4: The event should be considered either as an electrical or oil fire, whichever yields the worst consequences.

Note 5: Bin #N/A is not included in Table 6-1 of NUREG/CR-6850 (Ref. 1). This bin was added to capture plant equipment screened out as ignition sources during plant walkdowns.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 8 of 169 3.2 Assumptions The analysis model described in this task is based on the following assumptions as noted in NUREG/CR-6850:

• Fire ignition frequencies remain constant over time;

• Among the plants, the generic ignition frequency is the same for the same equipment type, regardless of differences in the quantity and characteristics of the equipment type that may exist among the plants;

• Within each plant, the likelihood of fire ignition is the same across an equipment type. For example, pumps are assumed to have the same fire ignition frequency regardless of size, usage level, working environment, etc.

3.3 Input from Other Tasks This task uses list and boundaries of the plant fire compartments resulting from Task 7.1, Plant Boundary Definition and Partitioning. Equipment information from SAP and information from plant walkdowns was used to facilitate the equipment count and identify their locations.

3.4 Procedure This task is organized into the following eight steps:

1. Mapping plant ignition sources to generic sources,

2. Plant fire event data collection and review,

3. Plant specific updates of generic ignition frequencies,

4. Mapping plant-specific locations to generic locations,

5. Location weighting factors,

6. Fixed fire ignition source counts,

7. Ignition source weighting factors, and

8. Ignition source and compartment fire frequency evaluation.

3.4.1 Step 1: Mapping Plant Ignition Sources to Generic Sources For each location, a review of all ignition sources was conducted to verify that every ignition source can be mapped to one of the relevant bins in Table 3-1. It is possible that unique ignition source types could be identified that may not be reflected in the generic frequency model ignition source list. The purpose of this step is to identify such ignition sources.

3.4.2 Step 2: Plant Fire Event Data Collection and Review The purpose of this task is to examine the fire events in the plant to make two determinations:

1. Are there any unusual fire occurrence patterns in the plant?

2. Is plant-specific fire frequency evaluation warranted?

The generic fire frequencies of Table 3-1 may be updated using plant-specific fire event data in all cases. Per NUREG/CR-6850, to reduce the level of effort, the analysis team may decide to forego this option. Use of the generic fire frequency data is reasonable if an important condition is met:

there are no unusual fire occurrence patterns in the plant.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 9 of 169 As required in NUREG/CR 6850, the Cooper historical fire events were reviewed for possible outlier frequencies for each ignition bin. Fire events extending back to June 1999 were reviewed.

The review and disposition of each fire event is shown in Attachment D. The events were classified as potentially challenging or not, in accordance with the criteria established in Section 6 of NUREG/CR 6850. 15 of the 28 event reports were identified as potentially challenging.

The fire events represent the time period from June 1999 to July 2007. All reactor modes and operating conditions were included. The events line up in each bin as shown below:

Table 3-2 Fire Event Summary Plant No. of Is plant specific Specific Bin IEF Bin No. of Events PE outside 5th/95th IEF Applicable Criteria that apply to Events at from range of (Point use generic data (NUREG/CR-6850) Cooper Generic NUREG/CR-6850 estimate -

Database Generic IEF

/ry) 6 1 12.6 2.5E-02 N Not Included Based on Criteria 1 & 2 12 1 11.5 2.5E-02 N Not Included Based on Criteria 1 & 2 15 2 109 5.0E-02 N Not Included Based on Criteria 2 21 1 52.0 2.5E-02 N Not Included Based on Criteria 1 & 2 22 1 3.7 2.5E-02 Y Not Included Based on Criteria 1 23 1 23.0 2.5E-02 N Not Included Based on Criteria 1 & 2 24 1 7.3 2.5E-02 Y Not Included Based on Criteria 1 25 1 12.9 2.5E-02 N Not Included Based on Criteria 1 & 2 27 1 10.0 2.5E-02 Y Not Included Based on Criteria 1 35 1 15.5 2.5E-02 N Not Included Based on Criteria 1 & 2 The use of plant specific data, as indicated in NUREG/CR-6850, page 6-9 should be used If plant fire event history reveals a repeated set of events associated with an ignition source bin, it is recommended that for those bins, plant specific fire frequencies be estimated. If there are only a small number of fire events in the plant, use generic fire events frequencies. The decision to use plant specific data was based on 3 criteria. If any of these criteria was applicable to a bin, generic data was used.

Criteria 1: If a bin only had 1 plant specific event, Bayesian update was not used, because 1 event is not sufficient to show a repeated set of events. A single event is also not sufficient to yield statistically significant results with Bayesian update.

Criteria 2: If the plant specific point estimate IEF for a bin using 40 plant years of experience was within the 5th-95th range of the generic data, it was considered acceptable and Bayesian update was not used.

Criteria 3: If all events for a bin occurred more than 10 years ago, generic data can be used for the frequency. The use of outdated historical evidence is not allowed per ASME-PRA-2003 (is referenced in Fire PRA standard ANS-58.23) Criteria DA-D7. The use of outdated historical evidence is not allowed per ASME-PRA-2003 (is referenced in Fire PRA standard ANS-58.23) Criteria DA-D7.

The potentially challenging events events are distributed as follows:

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 10 of 169 3.4.3 Step 3: Plant Specific Updates of Generic Ignition Frequencies Step 3 is a Bayesian update of the generic fire frequencies in Table 3-1 by plant specific data on fire events. Step 3 was not performed because of the conclusion of Step 2 and the generic frequencies were used directly.

3.4.4 Step 4: Mapping Plant-Specific Locations to Generic Locations Fire ignition source bin definition, in addition to equipment type, includes a plant location (see Table 3-1). This step maps plant-specific locations to generic locations. Table 3-4 provides a description of each generic location category to facilitate the mapping process described in this step.

These generic plant locations were derived based on variety of plant constructions and naming practices. Various plant locations were assigned to one of the above-listed generic locations. The ultimate goal of this effort is to map all Cooper fire zones and compartments to one of the above listed generic locations. Therefore, the final outcome of this task is a list of plant locations and their respective generic locations.

Table 3-3 Generic Plant Location Descriptions Plant Location Description/Clarification Plant location(s) where station batteries are located. Does not include other Battery Room permanent or temporary batteries.

PWR - The building that houses the reactor core and the rest of the primary Containment (PWR) system.

Refueling floor may be part of this location in many U.S. plants.

Plant location(s) where controls for normal and emergency plant operations are located. The control room envelope may include additional locations typically referred to as:

Control Room

• Auxiliary Electrical Room or Relay Room, where all plant relay logic circuits are located,

• Computer room(s), and

• Recreation room or kitchen connected to the control room.

The combination of typically contiguous buildings that contain the emergency core cooling, auxiliary feedwater, emergency electrical distribution system, emergency control circuits, and other safe shutdown related systems. It Control/Auxiliary/Reactor would include the cable spreading room, emergency or safety related Building switchgear room, relay room, etc. It would not specifically include the containment where main reactor vessel is located and the fuel handling areas of the plant. Note: in BWRs, this location combination is typically referred to as the Reactor Building.

Plant location where emergency diesel generators are located. This does not Diesel Generator Rooms include temporary diesel generators.

All plant locations inside the fence other than the containment, fuel handling Plant-Wide Components building, office buildings, maintenance yard, maintenance shop, etc.

The area of the yard where station, service, and auxiliary transformers and Transformer Yard related items are located. This may also be referred to as the Switchyard.

Plant building that house turbine generators, its auxiliary systems, and power conversion systems, such as main feedwater, condensate and other Turbine Building systems. Building generally consists of several elevations, including, basement, mezzanine, and turbine deck.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 11 of 169 3.4.5 Step 5: Location Weighting Factors Location weighting factors, WL, only apply to multiunit sites. For single-unit sites, WL = 1.0 is used.

3.4.6 Step 6: Fixed Fire Ignition Source Counts To establish an ignition source weighting factor, WIS,J, per compartment, it is necessary to obtain the total number of items per the equipment type defined in Table 3-1. The equipment of the entire site is counted in this step.

In the following, a counting method from NUREG/CR-6850 is provided for each generic equipment type listed in Table 3-1.

Bin 1 - Batteries (Battery Room): Each bank of interconnected sets of batteries located in one place (often referred to as Battery Room) should be counted as one battery set. Cells may not be counted individually.

Bin 2 - Reactor Coolant Pump (Containment; PWR): The reactor coolant pumps (RCPs) are distinct devices in PWRs that vary between two and four, depending on primary loop design.

Bin 3 - Transients and Hotwork (Containment; PWR): The ignition source weighting factor of transient fires is estimated using a ranking scheme that takes into account maintenance activities, occupancy level, and storage of flammable materials. See Step 7 for a description of the approach.

Bin 4 - Main Control Board (Control Room): A control room typically consists of one or two (depending on the number of units) main control boards as the central element of the room.

The control room may also include plant computers, other electrical cabinets containing plant relays, and instrumentation circuits, a kitchen type area, desks, bookshelves, and etc.

Aside from the main control board, the ignition source weighting factors of the remaining ignition sources of the control room should be based on the approach specific to each ignition source.

The response to FAQ 06-0018 (Ref. 7) references Appendix L of NUREG/CR-6850 for the definition of Main Control Board counts as follows:

• The MCB is defined as the collection of control panels inside the MCR of a nuclear power plant from which operators control the plant on a day-to-day basis.

• The MCB would typically include the front face of the horse shoe (a typical configuration in most plants), other control or instrumentation display panels that are typically placed in full view of the areas where control room operators are expected to spend most of their time, and other panels in the control room proper that contain control switches or instrumentation displays that are used for plant control or emergency shutdown.

• The MCB would typically not include the back panel of the main board (if such exist).

• The MCB would also not include those electrical panels devoted primarily to housing control relays, printed cards (such as signal conditioning cards), or all other devices that the operators do not directly use to maintain plant control or safe shutdown.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 12 of 169 Bin 5 - Cable Fires Caused by Welding and Cutting (Control/Auxiliary/Reactor Building): Cables are present at all parts of a nuclear power plant. For this bin, it is assumed that all exposed cables (i.e., cables that are not in conduits or wrapped by noncombustible materials) have an equal likelihood of experiencing a fire caused by welding and cutting across the entire location. To establish the ignition source weighting factor for cables, the approach used in the Combustible Loading Calculation of the plant can be used. The cable quantity reported in the Combustible Loading Calculation for each compartment can be used to establish the ignition source weighting factor. Since fire caused by welding and cutting is the focus of this bin, the final ignition source weighting factor is based on a combination of cable loading and transient fire rating of the compartment. See Section 3.4.7.2, below for a discussion of transient weighting factors. The cable loading was based on the combustible load of the cables (Ref. 11) in each fire zone as shown in Attachment C-1.

Bin 6 - Transient Fires Caused by Welding and Cutting (Control/Auxiliary/Reactor Building): See Step 7 for the approach to establish the ignition source weighting factor for transients.

Bin 7 - Transients (Control/Auxiliary/Reactor Building): See Step 7 for the approach to establish the ignition source weighting factor for transients.

Bin 8 - Diesel Generators (Diesel Generator Room): Diesel generators are generally well-defined items that include a set of auxiliary subsystems associated with each engine. It is recommended that each diesel generator and its subsystems be counted as one unit. The subsystems may include diesel generator air start compressors, air receiver, batteries and fuel storage, and delivery system. It is recommended that the electrical cabinets for engine and generator control that stand separate from the diesel generator be included as part of Plant-Wide Components - Electrical Cabinets. Control panels that are attached to engine may be counted as part of the engine.

Bin 9 - Air Compressors (Plant-Wide Components): This bin covers the large air compressors that provide plant instrument air. These compressors are generally well-defined devices. They may include an air receiver, air dryer, and control panel attached to the compressor. These items should be considered part of the air compressor. Noted that compressors associated with the ventilation systems are not part of this bin. Small air compressors used for specialized functions are also not part of this bin.

Bin 10 - Battery Chargers (Plant-Wide Components): These are generally well defined items associated with DC buses. Each charger should be counted separately.

Bin 11 - Cable Fires caused by Welding and Cutting (Plant-Wide Components): See the discussions for Bin 5. Note that for this bin, compartments that have been accounted for Bins 5 and 31 should be excluded.

Bin 12 - Cable Run (Plant-Wide Components): The cable loading of each compartment should be established using the same approach as that for Bin 5, except that, in this case, all plant compartments should be taken into account.

Bin 13 - Dryers (Plant-Wide Components): Clothes dryers are generally well-defined units.

Bin 14 - Electric Motors (Plant-Wide Components): The electrical motors associated with various devices, not including those counted in other bins, are included in this bin. This may include elevator motors, valve motors, etc. (The bin electric motors was referred to as elevator motors in previous EPRI reports related to fire-ignition frequencies. In this version of the fire ignition frequency model, the bin not only includes elevator motors, but other types of

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 13 of 169 electric motors as well.) Only sources greater than 5 horsepower are counted in this bin. Do not count MOV motors in this bin. FAQ 07-0031 (Ref. 8)

Bin 15 - Electrical Cabinets (Plant-Wide Components): Electrical cabinets represent such items as switchgears, motor control centers, DC distribution panels, relay cabinets, control and switch panels (excluding panels that are part of machinery), fire protection panels, etc.

Electrical cabinets in a nuclear power plant vary significantly in size, configuration, and voltage. Size variation range from small-wall mounted units to large walk-through vertical control cabinets, which can be 20 to 30 long. The configuration can vary based on number of components that contribute to ignition, such as relays and circuit cards, and combustible loading, which also affects the fire frequency. Voltages in electrical cabinets vary from low voltage (120V) panels to 4.6kV switchgears. Even though it is expected that these features affect the likelihood of fire ignition, from a simple analysis of the event data involving the electrical cabinets, it was determined that the variation by cabinet type did not warrant separate frequency evaluation. Therefore, one fire frequency was estimated for the electrical cabinets.

The following rules are used for counting electrical cabinets:

• Simple wall-mounted panels housing less than four switches are excluded from the counting process,

• All free-standing electrical cabinets are counted by their vertical segments, and

• To expedite the process, an average number of vertical segments may be used for such cabinets as motor control centers and DC distribution panels.

In this context, the term well-sealed means there are no open or unsealed penetrations, there are no ventilation openings, and potential warping of the sides/walls of the panel would not open gaps that might allow an internal fire to escape. Robustly secured means that any doors and/or access panels are all fully and mechanically secured and will not create openings or gaps due to warping during an internal fire. For example, a panel constructed of sheet metal sides tackwelded to a metal frame would not be considered well-sealed because internal heating would warp the side panels allowing fire to escape through the resulting gaps between weld points. A panel with a simple twist-handle latch mechanism would not be considered robustly secured because the twist handle would not prevent warping of the door under fire conditions. In contrast, a water-tight panel whose door/access panel is bolted in place or secured by mechanical bolt-on clamps around its perimeter would be considered both well-sealed and robustly secured. Also note that panels that house circuit voltages of 440V or greater are counted because an arcing fault could compromise panel integrity (an arcing fault could burn through the panel sides, but this should not be confused with the high energy arcing fault type fires).

Vertical segment counts are defined in FAQ 06-0016 (Ref. 5).

Bin 16a/b - High-Energy Arcing Faults (Plant-Wide Components): High-energy arcing faults are associated with switchgear and load centers. Switchyard transformers and isolation phase buses are not part of this bin. For this bin, similar to electrical cabinets, the vertical segments of the switchgear and load centers should be counted. Additionally, to cover potential explosive failure of oil filled transformers (those transformers that are associated with 4.16 or 6.9kV switchgear and lower voltage load centers) may be included in vertical segment counts of the switchgear.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 14 of 169 Split fire ignition frequency Bin 16, HEAF, into two bins; namely, 16a - HEAF for low voltage panels (480-1000V) and 16b - HEAF for medium-voltage panels (greater than 1000V). Vertical segment counts are defined in FAQ 06-0017 (Ref. 6)

Bin 17 - Hydrogen Tanks (Plant-Wide Components): Hydrogen storage tanks are generally well-defined items. Multitank hydrogen trailers, because they are interconnected, should be counted as one unit.

Bin 18 - Junction Box (Plant-Wide Components): The frequency was apportioned based on ratio of cable in the area to the total cable in the plant. Therefore, the ignition source-weighting factor of the cables may be used for this bin, as well.

Bin 19 - Miscellaneous Hydrogen Fires (Plant-Wide Components): This bin includes hydrogen fires in miscellaneous systems other than hydrogen cylinder storage, generator cooling, and battery rooms. It is not necessary to count the ignition sources related to this bin. If it becomes necessary to establish an ignition frequency associated with the components of this bin for a specific compartment or a pipe segment, the approach recommended below in Step 7 for large systems may be used.

Bin 20 - Off-Gas/H2 Recombiner; BWRs (Plant-Wide Components): Generally there are at least two recombiner systems per BWR. Each recombiner system should be counted as one unit.

If there are risk significant cables and components located close to a recombiner, in Task 11, the ignition frequency of a fire involving the recombiner can be estimated by assuming equal probability of fire ignition across the length of the recombiner system.

Bin 21 - Pumps (Plant-Wide Components): For this methodology, it is assumed that above a certain size, fire ignition is the same for all pumps. Pumps below 5 hp are assumed to have little or no significant contribution to risk. Do not count small sampling pumps. The number of pumps in all plant locations defined as Plant-Wide should be estimated.

The number of pumps in all plant locations defined as Plant-Wide should be estimated.

Due to a lack of sufficient statistical data, a separate bin was not defined for large valves that include hydraulic fluid powered mechanisms. It is recommended such valves (e.g. Main Steam Isolation Valves, and Turbine Stop Valves) be counted and included in the pump bin.

Count Large hydraulic actuators (> 5 hp) as pumps only if the motor is greater than 5 hp.

FAQ 07-0031 (Ref. 8)

Bin 22 - RPS MG sets (Plant-Wide Components): In PWRs, the RPS MG sets are well defined devices. The electrical cabinets associated with the MG sets are not included as part of these items.

Bin 23a/b - Transformers (Plant-Wide Components): All dry-type indoor transformers that are not part of larger components are included in this count. Control power transformers and other small transformers, which are subcomponents in major electrical equipment, should be ignored. They are assumed to be an integral part of the larger component. Examples of transformers accounted for in this bin include 4160/480 transformers attached to AC load centers, low-voltage regulators, and essential service lighting transformers. The large yard transformers are not part of this count. In addition, the analyst should count wall-mounted transformers if they do satisfy other counting criteria. Only count transformers rated 45 kVa or greater. FAQ 07-0031 (Ref. 8)

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 15 of 169 Bin 24 - Transient Fires caused by Welding and Cutting (Plant-Wide Components): See Step 7 for the approach to establish ignition source weighting factors for transients.

Bin 25 - Transients (Plant-Wide Components): See Step 7 for the approach to establish the ignition source weighting factor for transients.

Bin 26 - Ventilation Subsystems (Plant-Wide Components): This category includes components such as air conditioning units, chillers, fan motors, air filters, dampers, etc. A fan motor and compressor housed in the same component are counted as one component. Do not count ventilation fans if the drive motor is 5 hp or less. FAQ 07-0031 (Ref. 8)

Bin 27- Yard Transformer-Catastrophic: The high-voltage power transformers typically installed in the yard belong to this bin. They include plant output power transformers, auxiliary-shutdown transformers, and startup transformers, etc. Isolation phase bus ducts are also included in this bin to simplify fire frequency analysis. A catastrophic failure of a large transformer is defined as an energetic failure of the transformer that includes a rupture of transformer tank, oil spill and burning oil splattered a distance from the transformer. In this case the analyst should use the frequency and:

1. determine availability of offsite power based on the function of the transformer(s),

and

2. consider propagation to adjacent (not nearby) building or components. A propagation path may be considered at the location of open or sealed penetrations, e.g., where a bus-duct enters from the Yard into the Turbine Building. Structural damage need only be considered only where appropriate shields are not present to protected structures and components against blast or debris.

Bin 28 - Yard Transformer-Non-Catastrophic: Similar to Bin 27 this bin includes the high-voltage power transformers typically installed in the yard. However, isolation phase bus ducts are not included in this bin. In a non-catastrophic transformer failure oil does spill outside transformer tank and the fire does not necessarily propagate beyond the fire source transformer. Analyst can use all the frequency and assume total loss of the Transformer/Switch Yard or may split this frequency equally among the large transformers of the area and assume loss of each transformer separately. Loss of offsite power should be determined based on the function of the affected transformer(s).

Bin 29 - Transformer Yard, Others: Items associated with yard transformers but not the transformers themselves (e.g., oil power output cables) are part of this bin. In the screening phase of the project, the analyst may conservatively assign the same frequency to all the items in this group. If the scenario would not screen out, the frequency may then be divided among the various items in this group. A relative ranking scheme may be used for this purpose. The ranking may be based on the relative characteristics of the items and analysts judgment.

Bin 30 - Boiler (Turbine Building): Boilers are generally well-defined items. All ancillary items associated with each boiler may be included as part of the boiler. Control panels that are installed separate from a boiler may be included in the Electrical Cabinets (Plant-Wide Components) bin.

Bin 31 - Cable Fires caused by Welding and Cutting (Turbine Building): See the discussion for Bin 5.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 16 of 169 Bin 32 - Main Feedwater Pumps (Turbine Building): Main feedwater pumps are generally well-defined entities. If there are ancillary components associated with each pump, it is recommended to include those items as part of the pump.

Bin 33 - T/G Excitor (Turbine Building): The turbine generator excitor is a well-defined item.

Generally, there is only one excitor per unit.

Bin 34 - T/G Hydrogen (Turbine Building): A complex of piping, valves, heat exchangers, oil separators, and often skid-mounted devices are associated with turbine generator hydrogen. Consider the entire complex as one system and assign the ignition frequency of this bin to that system. It is important to have a clear definition of system boundaries to ensure that, between this bin and Bin 19, all hydrogen-carrying items of the plant are properly accounted for. Similar to Bin 29, in the screening phase of the project, the analyst may conservatively assign the same frequency to all the items in this bin. If the scenario would not screen out, the frequency may then be divided among the various items using a relative ranking scheme. The ranking may be based on the relative characteristics of the items and the analysts judgment.

Bin 35 - T/G Oil (Turbine Building): Similar to hydrogen, a complex of oil storage tanks, pumps, heat exchangers, valves, and control devices belong to this bin. It is recommended to treat the entire complex as one system and assign the ignition frequency of this bin to that system. Similar to the preceding bin and Bin 29, in the screening phase of the project, the analyst may conservatively assign the same frequency to all the items in this bin. If the scenario would not screen out, the frequency may then be divided among the various items using a relative ranking scheme. The ranking may be based on the relative characteristics of the items and analysts judgment.

Bin 36 - Transient Fires caused by Welding and Cutting (Turbine Building): See Step 7 for the approach to establish the ignition source weighting factor for transients.

Bin 37 - Transients (Turbine Building): See Step 7 for the approach to establish the ignition source weighting factor for transients.

Bin N/A - This bin includes plant equipment screened out as ignition sources during plant walkdown. For example, pumps less than 5 horsepower, transformers less than 45 kVA, or well-sealed, non-ventilated electrical panels.

3.4.7 Step 7: Ignition Source Weighting Factors Ignition source weighting factor, WIS,J, is the fraction of ignition source (IS) that is present in compartment J. The WIS,J were evaluated for all the compartments and for all ignition sources identified in Step 1 of this task. The bins listed in the preceding section can be classified in three categories: countable items, transients, and large systems.

The counts were performed at the fire zone level and later combined to determine the ignition frequencies for the fire compartments. The counts were performed at the fire zone level because the location weighting factors and the fire influencing factors may be different for different zones that are part of the same fire compartment. Counting at the fire zone level allows the correct weighting factors and fire influencing factors to be used.

A separate procedure is presented below for each type.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 17 of 169 3.4.7.1 Countable Items The ignition source weighting factor, WIS,J, for countable items is calculated by dividing the number of each IS type in compartment J by the total number in the generic locations obtained in Step 6.

For example, if there are two pumps in the AFW pump room and there are 50 pumps counted for Bin 21 in Step 6, the ignition source weighting factor for the pumps in this room would be 2 / 50 = 0.04. Note that WIS,J for ignition sources grouped in the Plant-Wide Components bin needs the total equipment count for the plant.

3.4.7.2 Transients A ranking scheme is developed in NUREG/CR-6850 to assign weighting factors for ignition frequency bins involving transient combustibles or activities. The NUREG/CR-6850 scheme is used in this calculation. This scheme applies to all transient fire related bins defined in Table 3-1; that is Bins 3, 5, 6, 7, 11, 24, 25, 31, 36 and 37. A separate relative ranking analysis should be conducted for each bin. Occupancy level, storage of flammable materials, and type and frequency of maintenance activities in a zone are the three most important influencing factors of the likelihood of fire ignition involving a transient combustible or activity.

It is assumed that transient fires may occur at all areas of a plant unless precluded by design and/or operation, such as inside the BWR drywell during power operation. The only areas that can be assigned a zero transient fire frequency are those that are physically uninhabitable during plant operation. Administrative controls significantly impact the characteristics and likelihood of transient fires, but they do not preclude their occurrence, since there is industry evidence of failure to follow administrative control procedures.

Some areas of the plant, such as office areas (computers, cubicles, etc) and chemistry labs may contain safe shutdown cables. The fire frequency for these areas may be underestimated if the analysis consists mainly of counting plant components like electrical cabinets, pumps, etc.,

because these rooms do not contain plant-type sources. High-transient fire influence factors may be assigned to these areas in order to properly capture the fire risk.

Table 3-1 does not include transient fires for all locations. Therefore, the mapping of the plant specific locations to the generic locations will be different for fixed ignition sources vs. transient sources, e.g., battery rooms and diesel generator rooms.

The NUREG/CR-6850 scheme involves assigning one of five severity levels to three fire influencing factors for each zone. The three fire influencing factors as described in NUREG/CR-680 are:

1. Maintenance - The frequency and the nature of maintenance activities (preventive and/or corrective) in a compartment can impact the likelihood and characteristics of transient fires.

This depends on the type of equipment in the compartment, maintenance and hot work procedures, and housekeeping practices. The number of work orders issued during power operation for different compartments of the plant during a specific time period can be used to establish the relative ranking associated with maintenance activities. The analyst should use engineering judgment to determine the maintenance factor of compartments with no work orders in the selected period of time. The judgment can be based on the characteristics of the compartment relative to compartments with work orders. If the work orders cannot be collected easily, the analyst may use engineering judgment based on personal experience or information gathered from the maintenance personnel of the plant.

In this case, the analyst may ask the maintenance personnel to rate assign a rating number between 0 and 10 in terms of frequency of maintenance at a compartment and offer the two

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 18 of 169 or three most typical maintenance activities (e.g., welding, pump overhaul, and electrical device replacement). A 0 rating can only be assigned to those compartments where no maintenance is possible or allowed during power operation.

2. Occupancy - Occupancy level, which includes traffic, of a compartment impacts both the likelihood of transient combustibles (within the limits specified by plant housekeeping program) present in the compartment and the likelihood of ignition. Engineering judgment may be used to determine the occupancy factor.

3. Storage - Temporary or permanent storage of combustible/flammable materials in racks, cabinets, and other forms can impact the frequency and characteristics of transient fires initiated in compartments where such storage racks/cabinets are placed. The amount, type, and frequency of the use of material maintained in these storage containers should be taken into account. Engineering judgment augmented with plant walkdowns may be used to determine the storage factor.

The following five severity levels are:

1. No (0) - Can be used only for those compartments where transients are precluded by design.

2. Low (1) - Reflects minimal level of the factor.

3. Medium (3) - Reflects average level of the factor.

4. High (10) - Reflects the higher-than-average level of the factor.

5. Very high (50) - Reflects the significantly higher-than-average level of the factor (only for maintenance influencing factor).

Table 3-5 provides a brief description of these levels for each influencing factor. The following additional comments from NUREG/CR-6850 are noted.

• The influencing factor for maintenance should be based on the frequency and type of activities. The information obtained from work order counts or maintenance staff should be translated to the five levels defined here.

• If maintenance activity of a compartment includes liquid combustible/flammable material (e.g., diesel fuel, lubricating oil), the compartment should be rated as high. This exercise should consider all compartments affected by the maintenance activity. For example, if lube oil is staged in the turbine building for diesel generator oil change, both the turbine building and diesel generator room are considered affected by this maintenance activity.

• A low rating should be assigned to those compartments where administrative procedures prohibit welding and cutting during power operation.

• Areas requiring dosimetry may be assigned a low occupancy level, unless personnel needs walk through these areas to access other areas of the plant.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 19 of 169 Table 3-4 Description of Transient Fire Influencing Factors Influencing No (0) Low (1) Medium (3) High (10) Very high (50)

Factor Should be assigned to plant Small number of areas that may Large number of PM/CM work experience Maintenance (PM)/(CM) work orders compared significantly more activities during Average number orders compared to the average (PM)/(CM) work Maintenance power operation of PM/CM work to the average number of work orders compared are precluded by orders. number of work orders for a to the average design. orders for a typical typical number of work compartment.

compartment. orders for a typical compartment.

Entrance to the Compartment Compartments not compartment is with low foot Continuously continuously Occupancy not possible traffic or out of occupied Not applicable occupied, but with during plant general traffic compartment.

regular foot traffic.

operation. path.

Compartments where combustible/

Compartments flammable where all materials may Compartment Entrance to the combustible/ sometimes be where no compartment is flammable brought in and left combustible/

Storage not possible material is stored in either open Not applicable flammable during plant in closed containers for a materials are operation. containers placed short time or in a stored.

in dedicated closed container, firesafe cabinets. but outside a dedicated firesafe cabinet for an extended time.

Since the different transient fire bins address different plant locations and activities, the influencing factors were evaluated separately for each case. The following notes are provided for the various bins.

• For general transient fires (i.e., Bins 3, 7, 25 and 37), all three influencing factors were evaluated.

• For transient fires caused by welding and cutting (i.e., Bins 6, 24, and 36), only the maintenance influencing factor was evaluated. A low rating was assigned to compartments for which administrative procedures prohibit welding and cutting during power operation.

• For cable fires caused by welding and cutting (i.e., Bins 5, 11, and 31), as in the other cases of welding and cutting, only the maintenance influencing factor was evaluated.

The numerical rating of the factors are added for each compartment and then normalized across all the compartments of the location. That is, the ignition source weighting factor for transients is calculated using the sum of the influencing factors.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 20 of 169 For general transients (i.e., Bins 3, 7, 25, and 37), the following equation was used to establish the ignition source weighting factor:

(nm,J ,L + no,J ,L + ns,J ,L )

WGT ,J ,L =

NGT ,L NGT ,L = (nm,i ,L + no,i ,L + ns,i ,L )

(summed over all i, location L compartments).

where:

nm,J,L Maintenance influence factor rating of compartment J of location L, no,J,L Occupancy influence factor rating of compartment J of location L, and ns,i,L Storage influence factor rating of compartment J of location L.

In the case of transient fires caused by welding and cutting (i.e., Bins 6, 24, and 36), the following equation was used:

nm,J WWC ,J ,L =

NWC NWC = nm,i ,L (summed over i, all the compartments of location L).

For cable fires caused by welding and cutting (i.e., Bins 5, 11, and 31), the following equation was used:

nm,J WCF ,J = WCable,J NCF NCF = nm,i ,L (summed over all i, location L compartments),

where:

WCable,J Cable load of compartment J, based on the ratio of quantity of cables in compartment J over the total quantity of cables in the location.

3.4.7.3 Large Systems Bins 19, 20, and 35 address a complex of components within the plant that have common characteristics. The detailed fire analysis in a later task may need fire frequency estimation based on a small portion of the complex of components from the bin. The simplest approach would assume that there is equal likelihood across the complex of components. A geometric factor may be used to adjust bin frequency to the specific area of the plant where the components addressed in the bin could be risk-significant. The geometric factor refers to floor area ratio, or the ratio of the floor area where the fire will have the same impact. In place of a geometric factor, the analyst may count the various components of the complex and rate them by an ad-hoc scheme that discriminates by the relative likelihood of ignition. For example, for Bin 19, it may become necessary to estimate the ignition frequency associated with miscellaneous hydrogen piping in a specific compartment of the Reactor Building. In this case the analyst may estimate the fraction of the piping and components of this bin that are present in this specific compartment and use that fraction to adjust bin frequency to estimate the fire ignition frequency associated with hydrogen piping. If the hydrogen piping in this compartment is composed of only one pipe piece with no flanges, valves, or any other items attached to it, the analyst may use an adjusting factor smaller than the simple fraction suggested above. However, if the compartment houses a disproportionate fraction of pressure regulators, valves, and flanges, the analyst may elect to use an adjusting factor greater than the simple fraction.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 21 of 169 No specific analysis was performed at this time. As the needs of the detailed fire analysis become evident, additional analyses will be performed as needed.

3.4.8 Step 8: Ignition Source and Compartment Fire Frequency The fire frequency (generic or plant-specific) for each ignition source, IS-J, was calculated using the data quantified in the preceding steps. Note that when adding various ignition source frequencies to obtain compartment fire frequency, the mean value of the uncertainty distributions is used for the various parameters of the summation. This will yield the mean value of compartment fire frequency. The uncertainty distribution of compartment fire frequency is not necessary in the screening steps for a fire PRA. Propagation of the uncertainty distributions for the ignition sources will be done in Task 7.18 (Uncertainty and Sensitivity), if a particular fire source dominates results.

3.5 Uncertainty As stated in NUREG/CR-6850, the generic fire frequencies have been identified as the main source of uncertainty in this task. The generic frequencies are based on fire events data collected by EPRI from different data sources. The sources include individual nuclear power plants, and other organizations and government agencies like Nuclear Electric Insurance Limited (NEIL) and the Nuclear Regulatory Commission (NRC). Each of these sources has different criteria for reporting fires. Furthermore, some fire reports were not written specifically for describing a fire, but a fire was part of the event.

In addition to the variability generated by different data sources, it is unlikely that EPRI has been successful in collecting a report for every fire that has occurred in U.S. nuclear power plants. The fire frequencies, however, do not reflect this limitation.

In summary, the generic frequencies are estimated and uncertainty bounds are provided (NUREG/CR-6850, Appendix C (Ref. 1)). These uncertainty bounds account for the inherent randomness of the occurrence of fire events, and the variability among the plants.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 22 of 169

4.0 CONCLUSION

S The ignition sources were divided into two broad categories for this calculation; fixed ignition sources and transient sources. The following table provides a cross reference as to which category the bins from NUREG/CR-6850 fall into.

Table 4-1 BIN # vs Fixed/Transient Ignition Source Category Fixed Ignition Transient Bin No. Location Ignition Source Sources Sources 1 Battery Room Batteries X 2 Containment PWR Reactor Coolant Pump N/A 3 Containment PWR Transients and hotwork N/A 4 Control Room Main Control Board X Control/Aux/Reactor Cable fires caused by 5 X Building welding and cutting Control/Aux/Reactor Transient fires caused 6 X Building by welding and cutting Control/Aux/Reactor 7 Transients X Building Diesel Generator 8 Diesel Generators X Room Plant-Wide 9 Air Compressors X Components Plant-Wide 10 Battery Chargers X Components Plant-Wide Cable fires caused by 11 X Components welding and cutting Plant-Wide Cable Run (Self-ignited 12 X Components cable fires)

Plant-Wide 13 Dryers X Components Plant-Wide 14 Electric motors X Components Plant-Wide 15 Electrical Cabinets X Components High energy arcing Plant-Wide 16a faults (Low-Voltage X Components Panels 480-1000V)

High energy arcing Plant-Wide faults (Medium-Voltage 16b X Components Panels greater than 1000V)

Plant-Wide 17 Hydrogen Tanks X Components Plant-Wide 18 Junction box X Components Plant-Wide 19 Misc. Hydrogen Fires X Components Plant-Wide Off-gas/H2 20 X Components Recombiner (BWR)

Plant-Wide 21 Pumps X Components Plant-Wide 22 RPS MG sets X Components Plant-Wide 23a Transformers (Oil filled) X Components Plant-Wide 23b Transformers (Dry) X Components Plant-Wide Transient fires caused 24 X Components by welding and cutting

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 23 of 169 Fixed Ignition Transient Bin No. Location Ignition Source Sources Sources Plant-Wide 25 Transients X Components Plant-Wide 26 Ventilation Subsystems X Components Transformer -

27 Transformer Yard X Catastrophic Transformer - Non 28 Transformer Yard X Catastrophic Yard transformers 29 Transformer Yard X (Others) 30 Turbine Building Boiler X Cable fires caused by 31 Turbine Building X welding and cutting 32 Turbine Building Main feedwater pumps X Turbine Generator 33 Turbine Building X (T/G) Excitor 34 Turbine Building T/G Hydrogen X 35 Turbine Building T/G Oil X Transient fires caused 36 Turbine Building X by welding and cutting 37 Turbine Building Transients X The fixed ignition results are provided in Attachment A. Table A-1 Fire Compartment Ignition Frequencies gives the total fire ignition frequencies (which includes both fixed and transient) for each fire compartment and Table A-2 Fire Zone Ignition Frequencies provides the total ignition frequency at the fire zone level. Attachment B provides the detailed fixed ignition source worksheets and Attachment C provides the details of the transient sources analysis.

5.0 REFERENCES

1. NUREG/CR-6850, EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities, September 2005.

2. Kaplan, On a Two-Stage Bayesian Procedure for Determining Failure Rates from Experiential Data, IEEE Transactions on Power Apparatus and Systems, Volume PAS-102, 1983, pp. 195-202.

3. ANS Standard BSR/ANS 58.23, FPRA Methodology Standard, April 2006.

4. EPRI Technical Report, Fire Event Data Base and Generic Ignition Frequency Model for US Nuclear Power Plants, 2002.

5. FAQ 06-0016, Revision 1, Clarification/enhancement of Ignition Source counting guidance for Electrical Cabinets in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

[CLOSED 10/05/07 ML072700475]

6. FAQ 06-0017, Revision 2, Clarification/enhancement of Ignition Source counting guidance for High Energy Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

[CLOSED 9/26/07 ML072500300]

7. FAQ 06-0018, Revision 1, Clarification/enhancement of Ignition Source counting guidance for Main Control Board (MCB) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application

[CLOSED 9/7/07 ML072500273]

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 24 of 169

8. FAQ 07-0031, Revision 0, Clarification/enhancement of Ignition Source counting guidance for miscellaneous items in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

[CLOSED 12/17/07 ML0728406581]

9. RES & EPRI Team Response to FAQ 07-0031 NUREG/CR-6850, EPRI TR-1011989, Clarification of Miscellaneous Ignition Source Binning Issues, Final Revision 0 - 10/11/2007

10. FAQ 07-0035, Revision 0, Clarification/enhancement for Ignition Source counting guidance for High Energy Arcing Faults (HEAF) in NUREG/CR-6850, supporting NFPA-805 Fire PRA application.

11. SAP Equipment Information

12. CNS Combustible Loading Calculation, Rev. 4.1

13. 10CFR50 Appendix R Post-Fire Safe and Alternative Shutdown Analysis Report

14. CNS Fire Hazards Analysis

15. Fire Hazards Analysis Figure 1, Fire Area Drawing Elevations 859-9, 877-6, 881-9 &

882-6.

16. Fire Hazards Analysis Figure 2, Fire Area Drawing Elevation 903-6.

17. Fire Hazards Analysis Figure 3, Fire Area Drawing Elevation 918-0.

18. Fire Hazards Analysis Figure 4, Fire Area Drawing Elevation 932-6.

19. Fire Hazards Analysis Figure 5, Fire Area Drawing Elevations 958-3, 976-0 & 1001-0.

20. Fire Hazards Analysis Figure 6, Fire Area Drawing Miscellaneous Buildings Elevation 903-6.

21. Drawing 2050, General Arrangement Turbine Building Basement Floor Plan, Rev. N12.

22. Drawing 2051, Turbine Building General Arrangement Mezzanine Floor Plan, Rev. N23.

23. Drawing 2052, General Arrangement Turbine Building Operating Floor Plan, Rev. N30.

24. Drawing 2056, General Arrangement Intake Structure Plan & Sections, Rev. N12.

25. Drawing 2059, General Arrangement Reactor Building Plan Below Grade, Rev. N05.

26. Drawing 2060, General Arrangement Reactor Building Plan at Elev. 903-6, Rev. N11.

27. Drawing 2061, General Arrangement Reactor Building Plan at Elev. 931-6, Rev. N09.

28. Drawing 2062, General Arrangement Reactor Building Plan at Elev. 958-3, Rev. N06.

29. Drawing 2063, General Arrangement Reactor Building Plan at Elev. 976-0, Rev. N06.

30. Drawing 2064, General Arrangement Reactor Building Plan at Elev. 1001-0, Rev. N08.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 25 of 169

31. Drawing 2067, General Arrangement Radwaste Building Plans at Elev. 877-6 & 903-6, Rev.

N10.

32. Drawing 2068, General Arrangement Radwaste Building Plans at Elev. 918-0 & 934-0, Rev.

N10.

33. Drawing 2072, General Arrangement Augmented Radwaste Building Plans, Rev. N03.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 26 of 169 Attachment A Fixed Ignition Source Analysis

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 27 of 169 Table A Fire Compartment Ignition Frequencies Fire Total Fire Compartment Fire Compartment Description Compartment Ignition Frequency ARW Augmented Radwaste Building 5.230E-02 CB-A CB Basement, CB 903, Corridor RPS Room 1A 4.836E-03 CB-A-1 CB 903 DC SWG Rm 1A, Battery Rm 1A 1.365E-03 CB-B CB 903 DC SWG Rm 1B, Battery Rm 1B 1.279E-03 CB-C CB 903 RPS Rm 1B 1.475E-03 CB-D Control Room, CSR, Cable Expansion Rm, Aux Relay Rm 1.494E-02 CM Cable Manholes P1, C1, C2, P2 8.400E-05 DG-A DG Room 1A 9.186E-03 DG-B DG Room 1B 9.186E-03 DW Drywell 9.992E-04 IS-A Intake Structure 6.445E-03 MPF Mulit-Purpose Facility 4.510E-03 NCS Non-Critical Switchgear Room 4.243E-03 OB Office Building 6.783E-03 OG Off-Gas Building 9.984E-04 OWC Optimum Water Chemistry Building 3.919E-03 RB Reactor Building (excluding Drywell and Torus) 3.000E-02 RB-E Suppression Pool Area 4.581E-04 RB-J RB 931 Critical SWG Room 1F 1.684E-03 RB-K RB 931 Critical SWG Room 1G 1.728E-03 RW Radwaste Building 1.128E-02 TB-A TB including Non-Critical SWG Room and Office Building 7.849E-02 TB-C Steam Tunnel 6.346E-04 YD Yard 3.607E-02

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 28 of 169 Table A Fire Zone Ignition Frequencies Fire Zone Fire Zone Total Fire Fire Zone Cable Self- Junction Box Total Fire Zone Fire Fire Fixed Source Ignition Ignition Zone Fire Zone Description Bldg Elevation Transient Zone Compartment Ignition Frequency Frequency Ignition Frequency Frequency (Bin 12) (Bin 18) Frequency RCIC and Core Spray Pump 1A RB Reactor Bldg. 859'-9", 881'-9" 4.950E-04 0.000E+00 0.000E+00 4.898E-04 9.848E-04 Room 1B RB Core Spray Pump Room Reactor Bldg. 859'-9" 4.821E-04 0.000E+00 0.000E+00 4.898E-04 9.719E-04 1C RB RHR Pump Room 1A and 1C Reactor Bldg. 859'-9" 5.995E-04 0.000E+00 0.000E+00 4.898E-04 1.089E-03 1D RB RHR Pump Room 1B and 1D Reactor Bldg. 859'-9", 881'-9" 4.516E-04 0.000E+00 0.000E+00 4.898E-04 9.414E-04 1E RB HPCI Pump Room Reactor Bldg. 859'-9", 881'-9" 1.151E-03 0.000E+00 0.000E+00 4.898E-04 1.641E-03 1F RB-E Suppression Pool Area Reactor Bldg. 859'-9", 881'-9" 3.970E-04 0.000E+00 0.000E+00 6.109E-05 4.581E-04 1G RB Hydraulic Drive Pump Area Reactor Bldg. 881'-9" 2.780E-04 0.000E+00 0.000E+00 4.898E-04 7.678E-04 2A-1 RB 903'-6" Northeast Corner Reactor Bldg. 903'-6" 1.215E-03 8.519E-05 3.948E-05 9.187E-05 1.432E-03 2A-2 RB CRD Units - North Reactor Bldg. 903'-6" 1.475E-03 1.704E-04 7.896E-05 7.422E-04 2.467E-03 2A-3 RB 903'-6" South Corridor Reactor Bldg. 903'-6" 5.207E-04 8.519E-05 3.948E-05 6.073E-04 1.253E-03 2B RB RHR HX-1A Reactor Bldg. 903'-6" 0.000E+00 0.000E+00 0.000E+00 4.552E-04 4.552E-04 2C RB CRD Units - South Reactor Bldg. 903'-6" 1.892E-03 1.559E-04 7.226E-05 7.366E-04 2.857E-03 2D RB RHR HX-1B Reactor Bldg. 903'-6" 0.000E+00 0.000E+00 0.000E+00 4.552E-04 4.552E-04 2E TB-C Steam Tunnel Reactor Bldg. 903'-6" 5.735E-04 0.000E+00 0.000E+00 6.109E-05 6.346E-04 3A RB-J SWGR Room 1F Reactor Bldg. 932'-6" 1.623E-03 0.000E+00 0.000E+00 6.109E-05 1.684E-03 3B RB-K SWGR Room 1G Reactor Bldg. 932'-6" 1.667E-03 0.000E+00 0.000E+00 6.109E-05 1.728E-03 3C RB REC HX and Pump Area Reactor Bldg. 931'-6" 9.032E-04 7.082E-05 3.282E-05 6.019E-04 1.609E-03 Reactor MG Set Lube Oil Cooler 3D RB Reactor Bldg. 931'-6" 2.170E-04 2.732E-05 1.266E-05 5.330E-04 7.900E-04 Area 3E-1 RB Regenerative HX Areas Reactor Bldg. 931'-6" 6.555E-04 3.296E-05 1.528E-05 5.420E-04 1.246E-03 RWCU Recirc Pumps and 3E-2 RB Reactor Bldg. 931'-6" 6.252E-04 1.648E-05 7.638E-06 5.159E-04 1.165E-03 Corridor 4A RB RB Elevator and Accessway Area Reactor Bldg. 958'-3" 9.981E-04 4.819E-05 2.233E-05 5.488E-04 1.617E-03 4B RB RB HVAC Area Reactor Bldg. 958'-3" 1.042E-04 0.000E+00 0.000E+00 4.725E-04 5.767E-04 Fuel Pool HX, CRD Repair Room 4C RB Reactor Bldg. 958'-3" 1.238E-03 7.716E-05 3.576E-05 6.119E-04 1.962E-03 and Raw Water Cleanup Areas 4D RB Reactor MG Set Oil Pump Area Reactor Bldg. 958'-3" 7.039E-04 1.790E-05 8.297E-06 5.181E-04 1.248E-03 SBLC Pump Tank and 5A RB Reactor Bldg. 976'-0" 4.516E-04 2.633E-05 1.220E-05 5.315E-04 1.022E-03 Accessway 5B RB Reactor MG Set Area Reactor Bldg. 976'-0" 1.794E-03 1.481E-04 6.865E-05 7.243E-04 2.735E-03

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 29 of 169 Fire Zone Fire Zone Total Fire Fire Zone Cable Self- Junction Box Total Fire Zone Fire Fire Fixed Source Ignition Ignition Zone Fire Zone Description Bldg Elevation Transient Zone Compartment Ignition Frequency Frequency Ignition Frequency Frequency (Bin 12) (Bin 18) Frequency 6 RB Refueling Floor Reactor Bldg. 1001'-0" 2.257E-04 0.000E+00 0.000E+00 4.898E-04 7.155E-04 RHR Service Water Booster 7A CB-A Pump and Service Air Control Bldg. 882'-6" 1.890E-03 0.000E+00 0.000E+00 4.898E-04 2.379E-03 Compressor Areas Emergency Condensate Storage 7B CB-A Control Bldg. 877'-6" 8.679E-05 8.324E-08 3.857E-08 1.487E-04 2.356E-04 TK. Area 8A CB-D Aux Relay Room Control Bldg. 903'-6" 1.265E-03 5.496E-05 2.547E-05 6.979E-05 1.415E-03 8B CB-C RPS Room 1B Control Bldg. 903'-6" 1.327E-03 0.000E+00 0.000E+00 1.487E-04 1.475E-03 8C CB-A RPS Room 1A Control Bldg. 903'-6" 1.413E-03 0.000E+00 0.000E+00 1.487E-04 1.562E-03 Seal Water Pump Area and 8D CB-A Control Bldg. 903'-6" 5.091E-04 4.105E-07 1.903E-07 1.489E-04 6.586E-04 Corridor 8E CB-A-1 Battery Room 1A Control Bldg. 903'-6" 2.968E-04 8.324E-07 3.857E-07 1.491E-04 4.471E-04 8F CB-B Battery Room 1B Control Bldg. 903'-6" 2.968E-04 8.324E-07 3.857E-07 1.491E-04 4.471E-04 8G CB-B DC SWGR Room 1B Control Bldg. 903'-6" 6.827E-04 0.000E+00 0.000E+00 1.487E-04 8.314E-04 8H CB-A-1 DC SWGR Room 1A Control Bldg. 903'-6" 7.695E-04 0.000E+00 0.000E+00 1.487E-04 9.182E-04 9A CB-D Cable Spreading Room Control Bldg. 918'-0" 2.402E-03 1.112E-03 5.155E-04 2.372E-04 4.267E-03 9B CB-D Cable Expansion Room Control Bldg. 918'-0" 0.000E+00 6.634E-05 3.074E-05 7.159E-05 1.687E-04 10A CB-D Computer Room Control Bldg. 932'-6" 2.057E-03 0.000E+00 0.000E+00 1.487E-04 2.206E-03 10B CB-D Control Room and SAS Corridor Control Bldg. 932'-6" 6.716E-03 1.547E-05 7.171E-06 1.414E-04 6.880E-03 Turbine Lube Oil Storage TK.

11A TB-A Turbine Bldg. 882'-6" 2.492E-03 1.093E-05 5.065E-06 9.152E-04 3.424E-03 Room 11B TB-A Turbine Bldg. Basement - South Turbine Bldg. 882'-6" 4.005E-03 0.000E+00 0.000E+00 9.039E-04 4.909E-03 11C TB-A H2 Seal Oil Unit Area Turbine Bldg. 882'-6" 3.520E-04 2.867E-04 1.329E-04 1.200E-03 1.972E-03 11D TB-A Condenser Pit Area Turbine Bldg. 882'-6" 1.302E-04 4.162E-05 1.929E-05 8.938E-04 1.085E-03 11E TB-A Reactor Feed Pumps Area Turbine Bldg. 882'-6" 1.370E-02 0.000E+00 0.000E+00 9.039E-04 1.461E-02 11F TB-A TB Controlled Corridor 882 Elev. Turbine Bldg. 882'-6" 2.604E-04 1.463E-04 6.778E-05 1.055E-03 1.529E-03 11G TB-A Steam Jet Air Ejector Room Turbine Bldg. 882'-6" 5.884E-04 9.557E-05 4.429E-05 9.495E-04 1.678E-03 Mechanical Vacuum Pumps 11H TB-A Turbine Bldg. 882'-6" 2.346E-04 1.611E-04 7.467E-05 1.070E-03 1.541E-03 Room Condensate, Condensate 11J TB-A Turbine Bldg. 882'-6" 1.880E-03 4.253E-05 1.971E-05 9.478E-04 2.890E-03 Booster and TEC Pumps Area 11K TB-A Turbine Oil Conditioner Room Turbine Bldg. 882'-6" 2.492E-03 0.000E+00 0.000E+00 9.039E-04 3.396E-03 11L TB-A Pipe Chase Turbine Bldg. 892'-6" 0.000E+00 1.414E-04 6.552E-05 1.421E-04 3.490E-04 12A TB-A ISO Phase Bus Duct Area Turbine Bldg. 903'-6" 1.768E-03 0.000E+00 0.000E+00 8.509E-04 2.619E-03 12B TB-A TB Controlled Corridor 903 Elev Turbine Bldg. 903'-6" 1.389E-03 0.000E+00 0.000E+00 9.039E-04 2.293E-03

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 30 of 169 Fire Zone Fire Zone Total Fire Fire Zone Cable Self- Junction Box Total Fire Zone Fire Fire Fixed Source Ignition Ignition Zone Fire Zone Description Bldg Elevation Transient Zone Compartment Ignition Frequency Frequency Ignition Frequency Frequency (Bin 12) (Bin 18) Frequency Condenser and Heater Bay 12C TB-A Turbine Bldg. 903'-6", 909'-6" 2.170E-04 9.097E-05 4.216E-05 9.448E-04 1.295E-03 Areas 12D TB-A Turbine Bldg. Floor-North Turbine Bldg. 903'-6" 9.634E-04 1.027E-05 4.760E-06 9.145E-04 1.893E-03 12E TB-A Turbine Oil Reservoir Area Turbine Bldg. 903'-6" 2.948E-03 4.026E-04 1.866E-04 1.267E-03 4.804E-03 Turbine Bldg. Document Storage 12F TB-A Turbine Bldg. 918'-0" 0.000E+00 2.468E-04 1.144E-04 1.344E-03 1.706E-03 Vault 13A TB-A Turbine Operating Floor Turbine Bldg. 932'-6" 1.172E-02 0.000E+00 0.000E+00 1.090E-03 1.280E-02 13B NCS Non-Critical SWGR Room Turbine Bldg. 932'-6" 3.753E-03 0.000E+00 0.000E+00 4.898E-04 4.243E-03 13C TB-A Electrical Shop Turbine Bldg. 932'-6" 5.211E-05 8.916E-05 4.132E-05 1.405E-03 1.588E-03 Instrument Shop, Instrument 13D TB-A Turbine Bldg. 932'-6" 4.339E-05 1.642E-07 7.610E-08 1.682E-04 2.119E-04 Records and Chart Rooms Emergency Diesel Generator 1A Diesel Gen.

14A DG-A 903'-6" 8.430E-03 0.000E+00 0.000E+00 5.457E-04 8.976E-03 Room Rm.

Emergency Diesel Generator 1B Diesel Gen.

14B DG-B 903'-6" 8.430E-03 0.000E+00 0.000E+00 5.457E-04 8.976E-03 Room Rm.

Diesel Gen.

14C DG-A DG 1A Diesel Oil Day TK. Room 903'-6" 0.000E+00 0.000E+00 0.000E+00 2.100E-04 2.100E-04 Rm.

Diesel Gen.

14D DG-B DG 1B Diesel Oil Day TK. Room 903'-6" 0.000E+00 0.000E+00 0.000E+00 2.100E-04 2.100E-04 Rm.

15 TB-A Heating Boiler Room Boiler Rm. 903'-6" 2.299E-03 0.000E+00 0.000E+00 5.037E-04 2.802E-03 16 TB-A Turbine Bldg. Exhaust Fan Room Fan Rm. 903'-6" 4.254E-04 0.000E+00 0.000E+00 5.037E-04 9.291E-04 Water 17 TB-A Water Treatment Bldg. Treatment 903'-6" 1.300E-03 0.000E+00 0.000E+00 5.457E-04 1.846E-03 Bldg.

18A TB-A Machine Shop Machine Shop 903'-6" 3.882E-03 0.000E+00 0.000E+00 6.928E-04 4.575E-03 18B TB-A Machine Shop Clean Tool Room Machine Shop 903'-6" 0.000E+00 0.000E+00 0.000E+00 5.457E-04 5.457E-04 18C TB-A Machine Shop Oil Storage Room Machine Shop 903'-6" 0.000E+00 0.000E+00 0.000E+00 3.991E-04 3.991E-04 Machine Shop Paint Storage 18D TB-A Machine Shop 903'-6" 0.000E+00 0.000E+00 0.000E+00 3.991E-04 3.991E-04 Room Machine Shop Lunch Room and 18E TB-A Machine Shop 923'-6" 0.000E+00 0.000E+00 0.000E+00 3.991E-04 3.991E-04 Records Storage Room Office Bldg Controlled Corridor 19A OB Office Bldg. 903'-6" 0.000E+00 0.000E+00 0.000E+00 5.457E-04 5.457E-04 903 Elev.

Office Bldg. Occupancies and 903'-6", 918'-0",

19B OB Office Bldg. 4.669E-03 0.000E+00 0.000E+00 4.623E-04 5.131E-03 Controlled Corridors 932'-6" 19C OB Office Building Penthouse Office Bldg. 946'-11" 9.381E-04 0.000E+00 0.000E+00 1.681E-04 1.106E-03 Intake 20A IS-A Service Water Pump Area 903'-6" 1.181E-03 3.288E-06 1.524E-06 2.615E-04 1.447E-03 Structure

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 31 of 169 Fire Zone Fire Zone Total Fire Fire Zone Cable Self- Junction Box Total Fire Zone Fire Fire Fixed Source Ignition Ignition Zone Fire Zone Description Bldg Elevation Transient Zone Compartment Ignition Frequency Frequency Ignition Frequency Frequency (Bin 12) (Bin 18) Frequency Circ. Water Pump and Traveling Intake 20B IS-A 903'-6" 4.746E-03 0.000E+00 0.000E+00 2.520E-04 4.998E-03 Screen Area Structure Radwaste 21A RW Radwaste Bldg. Basement 877'-6" 3.370E-03 0.000E+00 0.000E+00 5.457E-04 3.915E-03 Bldg.

Radwaste 21B RW Radwaste Bldg. first floor 903'-6" 2.807E-03 0.000E+00 0.000E+00 5.457E-04 3.353E-03 Bldg.

Radwaste 21C RW Radwaste Bldg. second floor 918'-0" 1.465E-03 4.162E-06 1.929E-06 5.858E-04 2.057E-03 Bldg.

Radwaste 21D RW Radwaste Bldg. third floor 934'-0" 5.643E-04 7.650E-05 3.545E-05 1.283E-03 1.960E-03 Bldg.

Aug.

Augmented Radwaste Bldg.

22A ARW Radwaste 877'-6" 4.773E-02 1.422E-05 6.588E-06 6.828E-04 4.843E-02 Basement Bldg.

Aug.

Augmented Radwaste Bldg. first 22B ARW Radwaste 903'-6" 2.050E-03 2.239E-05 1.038E-05 7.616E-04 2.844E-03 floor Bldg.

Aug.

Augmented Radwaste Bldg.

22C ARW Radwaste 918'-6" 4.765E-04 0.000E+00 0.000E+00 5.457E-04 1.022E-03 second floor Bldg.

Electric Motor Driven Fire Pump Fire Pump 23A YD 903'-6" 6.686E-04 0.000E+00 0.000E+00 5.457E-04 1.214E-03 Room House Fire Pump 23B YD Diesel Driven Fire Pump Room 903'-6" 7.170E-03 0.000E+00 0.000E+00 5.457E-04 7.716E-03 House Fire Pump 23C YD Diesel Oil TK. Room 903'-6" 0.000E+00 0.000E+00 0.000E+00 2.520E-04 2.520E-04 House Multi-Purpose 24 MPF Multi-purpose Facility 903'-6" 3.817E-03 0.000E+00 0.000E+00 6.928E-04 4.510E-03 Facility 25 OG Off-Gas Bldg. Off Gas Bldg. 903'-6" 4.948E-04 0.000E+00 0.000E+00 5.037E-04 9.984E-04 Opt. Water Optimum Water Chemistry 26 OWC Chemisty 903'-6" 3.667E-03 0.000E+00 0.000E+00 2.520E-04 3.919E-03 (OWC) Building Bldg.

CM CM Cable Manholes P1, C1, C2, P2 Control Bldg. 0.000E+00 0.000E+00 0.000E+00 8.400E-05 8.400E-05 DW DW Drywell Drywell 903'-6" 9.992E-04 0.000E+00 0.000E+00 0.000E+00 9.992E-04 Transformer YD YD Transformer Yard 903'-6" 2.668E-02 0.000E+00 0.000E+00 2.100E-04 2.689E-02 Yard

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 32 of 169 Attachment B Detailed Fixed Ignition Source Worksheets

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 33 of 169 FIRE ZONE: 1A FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CS-P-A CSP A PMP 1250 hp - 28 gal oil 21 1 EE-STR-1308MV STR F/ PC-1308MV PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-250RCIC CP STR F/ RCIC BAROMETRIC CDSR COND P PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250RCIC VP STR F/ RCIC BAROMETRIC CDSR VAC P PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STRR-250RCIC 250VDC RCIC STRR PNL 250 VDC 15 1 PRA Component - Non-ventilated HV-FAN- FC-R-1F NE QUAD RECIRC FAN FAN 3 hp N/A 1 Less than 5 horsepower LRP-PNL- 25-1 CS INSTR RACK CH A 25-1 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-58 RCIC INSTR RACK 25-58 PNL 15 1 Non-ventilated - Robustly Secured RCIC-P-CP RCIC COND P PMP 3 hp N/A 1 Less than 5 horsepower RCIC-P-VP RCIC VAC P PMP 3 hp N/A 1 Less than 5 horsepower RCIC-TU-TURB RCIC TU TURB 80 hp 21 1 RW-P-B1 RB FL DR SUMP P B1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-B2 RB FL DR SUMP P B2 PMP 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 34 of 169 FIRE ZONE: 1B FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CS-P-B CSP B PMP 1250 hp - 28 gal oil 21 1 EE-STR-125HPCI MO16 STR F/ HPCI-MO16 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STRR-125B 125VDC STRR PNL 125 VDC 15 1 PRA Component - Non-ventilated LRP-PNL- 25-60 CS INSTR RACK CH B 25-60 PNL 15 1 Non-ventilated - Robustly Secured RW-P-D1 RB FL DR SUMP P D1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-D2 RB FL DR SUMP P D2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-E1 RB BASEMENT EQUIP DR SUMP P E1 PMP 5 hp 21 1 RW-P-E2 RB BASEMENT EQUIP DR SUMP P E2 PMP 5 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 35 of 169 FIRE ZONE: 1C FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CM-P-RX RB AUX COND P PMP 30 hp 21 1 EE-STR-921MV STR F/ RHR-921MV PNL 125 VDC 15 1 PRA Component - Non-ventilated HV-FAN- FC-R-1J NW QUAD RECIRC FAN FAN 3 hp N/A 1 Less than 5 horsepower LRP-PNL- 25-59 RHR INSTR RACK CH A 25-59 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-7 RECIRC P INSTR RACK 25-7 PNL 15 1 Non-ventilated - Robustly Secured PC-P-TD TORUS DR P PMP 60 hp 21 1 RHR-P-A RHR P A PMP 1250 hp - 28 gal oil 21 1 RHR-P-C RHR P C PMP 1250 hp - 28 gal oil 21 1 RW-P-A1 RB FL DR SUMP P A1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-A2 RB FL DR SUMP P A2 PMP 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 36 of 169 FIRE ZONE: 1D FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-STR-1302MV STR F/ PC-1302MV PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-1303MV STR F/ PC-1303MV PNL 125 VDC 15 1 PRA Component - Non-ventilated HV-FAN- FC-R-1H SW QUAD RECIRC FAN FAN 3 hp N/A 1 Less than 5 horsepower LRP-PNL- 25-50 HPCI INSTR RACK 25-50 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-62 RHR INSTR RACK CH B 25-62 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR116 RB HPCI SV RACK 116 PNL 15 1 Non-ventilated - Robustly Secured RHR-P-B RHR-P-B PMP 1250 hp - 28 gal oil 21 1 RHR-P-D RHR-P-D PMP 1250 hp - 28 gal oil 21 1 RW-P-C1 RB FL DR SUMP P C1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-C2 RB FL DR SUMP P C2 PMP 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 37 of 169 FIRE ZONE: 1E FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-STR-125HPCI MO17 STR F/ HPCI-MO17 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125HPCI MO58 STR F/ HPCI-MO58 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI ALOP STR F/ HPCI AUX LO P PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI CP STR F/ HPCI GLAND SEAL COND P PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI GSE STR F/ HPCI GLAND SEAL EXH PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO14 STR F/ HPCI-MO14 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO19 STR F/ HPCI-MO19 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO20 STR F/ HPCI-MO20 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO21 STR F/ HPCI-MO21 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO24 STR F/ HPCI-MO24 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250HPCI MO25 STR F/ HPCI-MO25 PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STRR-125HPCI 125VDC HPCI STRR PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STRR-250HPCI 250VDC HPCI STRR PNL 250 VDC 15 1 PRA Component - Non-ventilated HPCI-FAN-GSE HPCI GLAND SEAL EXH FAN 1 hp N/A 1 Less than 5 horsepower HPCI-P-ALOP HPCI AUX LO P PMP 7-1/2 hp 21 1 HPCI-P-BP HPCI BOOSTER P PMP 21 1 HPCI-P-CP HPCI COND P PMP 1 hp 21 1 PRA Component - Less than 5 horsepower HPCI-P-MLOP HPCI MN LO P PMP 21 1 HPCI-P-MP HPCI MN P PMP 21 1 HV-FAN- FC-R-1G FCU FC-R-1G FAN <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 38 of 169 FIRE ZONE: 1F FIRE COMPARTMENT: RB-E No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections SUPP CHAMBER MONORAIL (BLDG-HST-BLDG-HST-SC HOIST N/A 1 Infrequent Use/Overcurrent Protection SC)

EE-XFMR-LPR4G XFMR F/ PNL LPR4G XFMR 45 kVA 23b 1 LRP-PNL-LPR4G LP LPR4G PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 39 of 169 FIRE ZONE: 1G FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CRD-P-A CRD P A PMP 250 hp 21 1 CRD-P-B CRD P B PMP 250 hp 21 1 EE-STR-1305MV STR F/ PC-1305MV PNL 125 VDC 15 1 PRA Component - Non-ventilated HV-FAN- FC-R-1E SE QUAD RECIRC FAN FAN 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 40 of 169 FIRE ZONE: 2A-1 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACD-P- CP-R-A1 AUX. COND DUP P PMP 1-1/2 hp N/A 1 Less than 5 horsepower ACD-P- CP-R-A2 AUX. COND DUP P PMP 1-1/2 hp N/A 1 Less than 5 horsepower BLDG-HST-H10 RB HST H10 DF AREA (BLDG-HST-H10) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-MCC-K MCC-K MCC 15 9 EE-PNL-AA3 125VDC PNL AA3 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-BB3 125VDC PNL BB3 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-CA 125VDC PNL CA PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-CB 125VDC PNL CB PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-LPR1F LP LPR1F PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-SLDT1 ST LEAK DETECTION TEST PNL NU 1 PNL 120 VAC 15 1 Non-ventilated - Robustly Secured EE-STR- RHR-MO67 STR F/ RHR-MO67 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO131 STR F/ RCIC-MO131 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO132 STR F/ RCIC-MO132 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO14 STR F/ RCIC-MO14 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO16 STR F/ RCIC-MO16 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO18 STR F/ RCIC-MO18 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO20 STR F/ RCIC-MO20 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO21 STR F/ RCIC-MO21 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO27 STR F/ RCIC-MO27 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO30 STR F/ RCIC-MO30 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO33 STR F/ RCIC-MO33 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RCIC MO41 STR F/ RCIC-MO41 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STRR-125RCIC 125VDC RCIC STRR PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-XFMR-LPR1F XFMR F/ LP LPR1F XFMR 30 kVA N/A 1 Less than 45 kVA HV-FAN- HF-R-1A FUME HOOD FAN FAN <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 41 of 169 FIRE ZONE: 2A-2 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACAD-CPSR-A SPARE CPSR N/A 1 Electrically Disconnected BLDG-HST-RX RB HST RX (BLDG-HST-RX) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-RXA RB AIR HST RXA (BLDG-HST-RXA) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-RXB RB AIR HST RXB (BLDG-HST-RXB) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-MCC-Q MCC-Q MCC 15 10 EE-MCC-R MCC-R MCC 15 9 EE-PNL-LPREMF LP LPREMF PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-CBX1 XFMR <45 kVA N/A 1 Less than 45 kVA EE-XFMR-CBX2 XFMR <45 kVA N/A 1 Less than 45 kVA EE-XFMR-LPREMF XFMR F/ LP LPREMF XFMR 15 kVA N/A 1 Less than 45 kVA HPI-CBX-1 PNL Ventilated 15 1 HPI-CBX-2 PNL Ventilated 15 1 HPI-CS-RB2 CAMERA CONN POINT RB2 PNL 15 1 Non-ventilated - Not Secured HV-STR- HEPA-2 PB STA F/ TEMP HEPA UNIT 2 PWR PNL 480 VAC 15 1 Non-ventilated LRP-PNL- 25-15 FUEL POOL COOL PNL 25-15 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-22 CRD ACC MONITOR PNL 3 & 4 25-22 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-23 RECIRC P A INSTR RACK 25-23 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-27 SRM IRM PA RACK CH A 25-27 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-51 JET P INSTR RACK A 25-51 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-PASHT PAS HT STR PNL PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-PASSVP PAS SV PNL PNL 15 1 Non-ventilated - Robustly Secured DW FAN COIL UNITS A & C LOC INSTR LRP-RACK-LIR-HV-R-AC RACK Instrument Rack N/A 1 Not considered ignition source RACK DW FAN COIL UNITS B&D LOC INSTR LRP-RACK-LIR-HV-R-BD RACK Instrument Rack N/A 1 Not considered ignition source RACK LRP-RACK-LR104 RB LOC INSTR RACK 104 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR133A MSRV BELLOWS LEAK TEST PNL LR-133A PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR133B MSRV BELLOWS LEAK TEST PNL LR-133B PNL 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 42 of 169 FIRE ZONE: 2A-3 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-AC-MUX-O AC FOR ANN MUX O AC 115V N/A 1 Not considered ignition source ANN-MUX-O ANNUNCIATOR MULTIPLEXER CABINET O PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-MCC-RB MCC-RB MCC 15 5 EE-PNL-CPP2 CRIT INST & CPP CPP2 PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-STR-250DIV1 MO25A STR F/ RHR-MO25A PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250DIV1 MO53A STR F/ RR-MO53A PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250DIV2 MO25B STR F/ RHR-MO25B PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-STR-250DIV2 MO53B STR F/ RR-MO53B PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-XFMR-CBX3 XFMR <45 KVA N/A 1 Less than 45 kVA HPI-CBX-3 PNL Ventilated 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 43 of 169 FIRE ZONE: 2B FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 44 of 169 2C FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACAD-CPSR-D SPARE CPSR N/A 1 Electrically Disconnected ANN-AC-N ANN MUX CABINET N AC AC 115V N/A 1 Not considered ignition source ANNUNCIATOR MULTIPLEXER CABINET ANN-MUX-N PNL 125 VDC 15 1 Non-ventilated - Robustly Secured N

CRD-PNL-SDV TEST PNL F/ SDV VENT & DR V PNL 15 1 Non-ventilated - Robustly Secured EE-MCC-S MCC-S MCC 15 7 EE-MCC-Y MCC-Y MCC 15 10 120/208 VAC -

EE-PNL- LP-ASDR LP LP-ASDR PNL 15 1 Ventilated EE-PNL-LPR1G LP LPR1G PNL 120/208 VAC 15 1 PRA Component - Non-ventilated EE-PNL-LPREMG LP LPREMG PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STR-1311MV STR F/ PC-1311MV PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-XFMR-ASDR 30KVA XFMR 3PH 60HZ DRY TYPE XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPR1G XFMR F/ LP LPR1G XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPREMG XFMR F/ LP LPREMG XFMR 30 kVA N/A 1 Less than 45 kVA HPI-CS-RB3 CAMERA CONN POINT RB3 PNL 15 1 Non-ventilated - Not Secured HV-FCU- AC-ASDR-1 ASDR AC FAN COIL FCU 26 1 HV-HTR- AC-ASDR-1 ASDR ELEC HTR HTR <5 hp N/A 1 Less than 5 horsepower RAIL CAR AIR LOCK UNIT HTR UH-RAL-HV-MOT- UH-RAL-1A MOT 1/6 hp N/A 1 Less than 5 horsepower 1A MOT RAIL CAR AIR LOCK UNIT HTR UH-RAL-HV-MOT- UH-RAL-1B MOT 1/6 hp N/A 1 Less than 5 horsepower 1B MOT RAIL CAR AIR LOCK UNIT HTR UH-RAL-HV-MOT- UH-RAL-1C MOT 1/6 hp N/A 1 Less than 5 horsepower 1C MOT RAIL CAR AIR LOCK UNIT HTR UH-RAL-HV-MOT- UH-RAL-1D MOT 1/6 hp N/A 1 Less than 5 horsepower 1A MOT HV-STR- HEPA-1 PB STA F/ TEMP HEPA UNIT 1 PWR PNL 480 VAC 15 1 Non-ventilated LRP-PNL- 25-14 SRM IRM DR CONTR REL RACK 25-14 PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 25-24 RECIRC P B INSTR RACK 25-24 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-4 CRD ACC MONITOR PNL 1&2 25-4 PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 25-52 JET P INSTR RACK B 25-52 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-56 MS FLOW INSTR RACK 25-56 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-61 SRM IRM PA RACK CH B 25-61 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-ASDR ALT SD RM ADS/REC CONTRL PNL PNL 15 1 ADS_REC LRP-PNL-ASDR HPCI ALT SD RM HPCI CONTRL PNL PNL 15 1 LRP-PNL-ASDR RHR ALT SD RM RHR CONTRL PNL PNL 15 1 LRP-RACK-LR119 NBI COLD REF LEG FLOW CONTR RACK RACK 15 1 Non-ventilated - Robustly Secured PAS-P-P1 PAS SAMPLE P P1 PMP 7 1/2 hp 21 1 PAS-P-P2 PAS SAMPLE P P2 PMP 7 1/2 hp 21 1 PNL 9-84 PMIS-MUX-LNK4 PNL 115 VAC - Ventilated 15 1 RMP-P-RECEM REC WTR RAD MONITOR SAMPLE P PMP <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 45 of 169 RMV-P-4A DW VM SAMPLE P A PMP <5 hp N/A 1 Less than 5 horsepower RMV-RM-4 DW VM PNL 115 VAC - Ventilated 15 1 NES CRN CRD EQUIP HANDL SYS,QLIST TSE-HST-CRD HOIST N/A 1 Infrequent Use/Overcurrent Protection EVAL P

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 46 of 169 FIRE ZONE: 2D FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 47 of 169 FIRE ZONE: 2E FIRE COMPARTMENT: TB-C No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FCU- FC-R-1KA ST TUNNEL FCU FCU 7-1/2 hp 26 1 HV-FCU- FC-R-1KB ST TUNNEL FCU FCU 7-1/2 hp 26 1 LRP-RACK- LIR-HV-R-1K RB HV UNIT 1-HV-R-1K LOC INSTR RACK RACK Instrument Rack N/A 1 Not considered ignition source MS-AOV-A086A MS ISO V A OUTBOARD MSIV 21 1 MS-AOV-A086B MS ISO V B OUTBOARD MSIV 21 1 MS-AOV-A086C MS ISO V C OUTBOARD MSIV 21 1 MS-AOV-A086D MS ISO V D OUTBOARD MSIV 21 1 MS-HTR-121A ST LEAK DETECTION TEST HTR 121A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-121B ST LEAK DETECTION TEST HTR 121B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-121C ST LEAK DETECTION TEST HTR 121C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-121D ST LEAK DETECTION HEATER 121D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-122A ST LEAK DETECTION TEST HTR 122A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-122B ST LEAK DETECTION TEST HTR 122B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-122C ST LEAK DETECTION TEST HTR 122C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-122D ST LEAK DETECTION TEST HTR 122D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-123A ST LEAK DETECTION TEST HTR 123A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-123B ST LEAK DETECTION TEST HTR 123B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-123C ST LEAK DETECTION TEST HTR 123C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-123D ST LEAK DETECTION TEST HTR 123D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-124A ST LEAK DETECTION TEST HTR 124A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-124B ST LEAK DETECTION TEST HTR 124B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-124C ST LEAK DETECTION TEST HTR 124C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-124D ST LEAK DETECTION TEST HTR 124D HTR 100 W N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 48 of 169 FIRE ZONE: 3A FIRE COMPARTMENT: RB-J No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-AC-P ANN MUX CABINET P AC AC 115V N/A 1 Not considered ignition source ANN-MUX-P ANN MUX P PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-SPR1 MOT SPACE HTR PNL SPR1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-SWGR-4160F 4160 V SWGR F SWGR 4160V 15 11 HEAF EE-SWGR-4160F 4160 V SWGR F SWGR 4160V 16b 11 HEAF EE-SWGR-480F 480V CRIT SWGR 1F SWGR 480V 15 5 HEAF EE-SWGR-480F 480V CRIT SWGR 1F SWGR 480V 16a 5 HEAF EE-XFMR-480F 480VAC CRIT SWGR XFMR F XFMR 2000 kVA 23b 1 EE-XFMR-SPR1 XFMR F/ MOT SPACE HTR PNL SPR1 XFMR 30 kVA N/A 1 Less than 45 kVA BUS DUCT BUS 16b 10 CONTR BLDG VENT VANEAXIAL EXH FAN HV-FAN- EF-SWGR-1F FAN 26 1 1F HV-FAN- SF-SWGR-1F CONTR BLDG VENT VANEAXIAL SF 1F FAN 15 hp 26 1 HV-STR-ECBHI STRR F/ ESS CONTR BLDG SYS DIV I PNL 480 VAC 15 1 Non-ventilated

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 49 of 169 FIRE ZONE: 3B FIRE COMPARTMENT: RB-K No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-SPR2 MOT SPACE HTR PNL SPR2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-SWGR-4160G 4160 V SWGR G SWGR 4160V 15 11 HEAF EE-SWGR-4160G 4160 V SWGR G SWGR 4160V 16b 11 HEAF EE-SWGR-480G 480V CRIT SWGR 1G SWGR 480V 15 5 HEAF EE-SWGR-480G 480V CRIT SWGR 1G SWGR 480V 16a 5 HEAF EE-XFMR-480G 480VAC CRIT SWGR XFMR G XFMR 2000 kVA 23b 1 EE-XFMR-SPR2 XFMR F/ MOT SPACE HTR PNL SPR2 XFMR 30 kVA N/A 1 Less than 45 kVA BUS DUCT BUS 16b 10 CONTR BLDG VENT VANEAXIAL EXH FAN HV-FAN- EF-SWGR-1G FAN 26 1 1G HV-FAN- SF-SWGR-1G CONTR BLDG VENT VANEAXIAL SF 1G FAN 15 hp 26 1 HV-STR-ECBHII STRR F/ ESS CONTR BLDG SYS DIV II PNL 480 VAC 15 1 Non-ventilated LRP-RACK- LIR-HV-C-A C BLDG HV UNIT 1-HV-C-1A LIR RACK 15 1 Non-ventilated - Not Secured LRP-RACK-LIR-HV-C-RF C BLDG RECIRC FAN LIR RACK 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 50 of 169 FIRE ZONE: 3C FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-MCC-V MCC-V MCC 15 4 EE-PNL-LPR2G LP LPR2G PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPR2G XFMR F/ LP LPR2G XFMR 30 kVA N/A 1 Less than 45 kVA HV-FAN- HF-R-1B RACK HOOD (SR-1C) BF FAN <5 hp N/A 1 Less than 5 horsepower HV-FAN- HF-R-1C BF F/ SP-1 HOOD EXH FAN <5 hp N/A 1 Less than 5 horsepower LRP-PNL- 25-6 RX VES INSTR RACK 25-6 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-6-001 RX PROT PNL 25-6-001 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR118A RHR SYS AUX RACK 118A RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR118B RHR SYS AUX RACK 118B RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR179 REC PRESS INST CND & TB SUPPORT RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR180 REC HX OUTLET PRESS INST RACK RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-SRC RB SAMPLG RACK 1C RACK 15 1 Non-ventilated - Robustly Secured REC-P-A REACTOR EQUIP COOL P A PMP 75 hp 21 1 REC-P-B REACTOR EQUIP COOL P B PMP 75 hp 21 1 REC-P-C REACTOR EQUIP COOL P C PMP 75 hp 21 1 REC-P-D REACTOR EQUIP COOL P D PMP 75 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 51 of 169 FIRE ZONE: 3D FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-CPCADA CPP CP-CAD-A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STR-TSC CONTACT F/ TSC EMERG PWR PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-XFMR-CPCADA XFMR F/ CPP CP-CAD-A XFMR 15 kVA N/A 1 Less than 45 kVA LRP-PNL- 25-2-1 RWCU SYS INSTR RACK 25-2-1 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-5 RX VES INSTR RACK 25-5 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-5-001 RX PROT RACK 25-5-001 PNL 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 52 of 169 FIRE ZONE: 3E-1 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACAD-CPSR-B SPARE CPSR N/A 1 Electrically Disconnected EE-MCC-CB MCC-CB MCC 15 4 EE-PNL-CPCADB CPP CP-CAD-B PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-CPCADB XFMR F/ CPP CP-CAD-B XFMR 15 kVA N/A 1 Less than 45 kVA HV-FAN- BF-R-1A RB HVAC BF FAN 26 1 HV-FAN- BF-R-1B RB HVAC BF FAN 26 1 LRP-PNL- 25-2 RX WTR CLEANUP SYS INSTR RACK 25-2 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-20 RWCU SYS INSTR RACK 25-20 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK- LIR-HV-R-RB BF LOC INSTR RACK HV-R-BF PNL 15 1 Non-ventilated - Not Secured BF LRP-RACK-LR115 RB RWCU SEP SV RACK 115 PNL 15 1 Non-ventilated - Not Secured RW-P-RPSDP RWCU PH SEP DECANT P PMP 1 hp N/A 1 Less than 5 horsepower RW-P-RPSSP RWCU PH SEP SLUDGE P PMP 30 hp 21 1 RX 931 WORKSTATION 2 PNL 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 53 of 169 FIRE ZONE: 3E-2 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACAD-CPSR-C SPARE CPSR N/A 1 Electrically Disconnected EE-MCC-CA MCC-CA MCC 15 3 EE-MCC-N MCC-N MCC 15 5 HPI-CS-RB1 CAMERA CONN POINT RB1 PNL 15 1 Non-ventilated - Not Secured RWCU-P-A RWCU RECIRC P A PMP 60 hp 21 1 RWCU-P-B RWCU RECIRC P B PMP 60 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 54 of 169 FIRE ZONE: 4A FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-MCC-M MCC-M MCC 15 5 EE-MCC-RA MCC-RA MCC 15 5 EE-MCC-U MCC-U MCC 15 6 EE-PNL-LPR2F LP LPR2F PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STR-1310MV STR F/ PC-1310MV PNL 125 VDC 15 1 PRA Component - Non-ventilated STARTER F/REC DEAERATOR VACUMM EE-STR-DA REC PNL 15 1 PRA Component - Non-ventilated PUMP EE-STR-DEM 480V FUSED SUPPLY TO FDEM-A PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-XFMR-LPR2F XFMR F/ LTG PNL LPR2F & LPR3F XFMR 30 kVA N/A 1 Less than 45 kVA CONTAINMENT PRESS & LEVEL INST LRP-RACK-139 RACK 15 1 Non-ventilated - Robustly Secured RACK CONTAINMENT PRESS & LEVEL INST LRP-RACK-140 RACK 15 1 Non-ventilated - Robustly Secured RACK REC-MOT-CATA MOT F/ REC CHEM ADD TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower REC-P-BP FDEM-A BOOSTER P PMP 1 hp N/A 1 Less than 5 horsepower REC-P-CMP REC CHEM M P PMP 1/3 hp N/A 1 Less than 5 horsepower REC-P-DA REC DEAERATOR VACUUM PUMP PMP 1 hp N/A 1 Less than 5 horsepower REC DEAERATOR SKID LOCAL CNTRL REC-PNL-DA PNL 15 1 Non-ventilated - Robustly Secured PANEL

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 55 of 169 FIRE ZONE: 4B FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H13 RHR HX A HST H13 (BLDG-HST-H13) HOIST N/A 1 Infrequent Use/Overcurrent Protection HV-FAN- SF-R-1A-A HV-R-1A SF FAN 100 hp 26 1 HV-FAN- SF-R-1A-B HV-R-1A SF FAN 100 hp 26 1 LRP-RACK- LIR-HV-R-A RB HV UNIT 1-HV-R-1A LOC INSTR RACK RACK Instrument Rack N/A 1 Not considered ignition source

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 56 of 169 FIRE ZONE: 4C FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CRD REP AREA CRN H11 (BLDG-HST-BLDG-HST-H11 HOIST N/A 1 Infrequent Use/Overcurrent Protection H11)

BLDG-HST-H14 RHR HX B HST H14 (BLDG-HST-H14) HOIST N/A 1 Infrequent Use/Overcurrent Protection ELEC PNL SUPPLY FOR CRD REBUILD EE-PNL-CRDF PNL 15 1 Non-ventilated - Not Secured RM EE-STR-125RX ALOP-A STR F/ RR MG AUX LO P A PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RX ALOP-B STR F/ RR MG AUX LO P B PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RX MO18 STR F/ RWCU-MO18 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STR-125RX MO77 STR F/ MS-MO77 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-STRR-125RX 125VDC RB STRR PNL 125 VDC 15 1 PRA Component - Non-ventilated CRD REBUILD ROOM SUPPLY EE-XFMR-CRDF XFMR 30 kVA N/A 1 Less than 45 kVA TRANSFORMER FPC-P-A FUEL POOL COOL P A PMP 60 hp 21 1 FPC-P-B FUEL POOL COOL P B PMP 60 hp 21 1 LRP-PNL- 12-4-129A RWCU FDEM V LOC PNL 12-4-129A PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 12-4-129B RWCU FDEM V LOC PNL 12-4-129B PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 12-4-130A RWCU FDEM SOL V RACK 12-4-130A PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 12-4-130B RWCU FDEM SOL V RACK 12-4-130B PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 12-4-131A RWCU FDEM SOL V RACK 12-4-131A PNL Instrument Rack N/A 1 Not considered ignition source LRP-PNL- 12-4-131B RWCU FDEM SOL V RACK 12-4-131B PNL Instrument Rack N/A 1 Not considered ignition source LRP-PNL- 12-4-98A RWCU FDEM LOC PNL 12-4-98A PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 12-4-98B RWCU FDEM LOC PNL 12-4-98B PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 12-4-99 FDEM SYS INSTR RACK 12-4-99 PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 25-16 FUEL POOL COOL PNL 25-16 PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-32 RWCU RACK 25-32 PNL 15 1 Non-ventilated - Not Secured LRP-RACK-LR123 RWCU FDEM SV RACK 123 RACK Instrument Rack N/A 1 Not considered ignition source RW-AG-RAFMXTA RWCU ANION FLOC MIXING TK AG MOT <5 hp N/A 1 Less than 5 horsepower RW-AG-RCFMXTA RWCU CATION FLOC MIXING TK AG MOT <5 hp N/A 1 Less than 5 horsepower RWCU-AG-PTA PRECOAT TK AG MOT <5 hp N/A 1 Less than 5 horsepower RWCU-AG-RFTA RESIN FD TK AG MOT 3/4 hp N/A 1 Less than 5 horsepower RWCU-MOT-PTM RWCU PRECOAT TK MX MOT 3/4 hp N/A 1 Less than 5 horsepower RWCU-MOT-RFTM RWCU RESIN FD TK MX MOT 3/4 hp N/A 1 Less than 5 horsepower RWCU-P-HPA RWCU HOLDING P A PMP 21 1 RWCU-P-HPB RWCU HOLDING P B PMP 21 1 RWCU-P-PP PRECOAT P PMP 7-1/2 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 57 of 169 FIRE ZONE: 4D FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RRLO-P-A1 MG ST LO P A-1 PMP 40 hp 21 1 RRLO-P-A2 MG ST LO P A-2 PMP 40 hp 21 1 RRLO-P-A3 MG ST LO P A-3 PMP 40 hp 21 1 RRLO-P-B1 MG ST LO P B-1 PMP 40 hp 21 1 RRLO-P-B2 MG ST LO P B-2 PMP 40 hp 21 1 RRLO-P-B3 MG ST LO P B-3 PMP 40 hp 21 1 RRLO-P-ELOPC MG ST EMERG LO P C PMP 3/4 hp N/A 1 Less than 5 horsepower RRLO-P-ELOPD MG ST EMERG LO P D PMP 3/4 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 58 of 169 FIRE ZONE: 5A FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RR VIB MONITORING COMPUTER HV-AC- AC-CS-MP2 AC 115V N/A 1 Not considered ignition source CABINET AC STANDBY LIQ CONT SYS INSTR RACK LRP-PNL- 25-19 PNL 15 1 Non-ventilated - Robustly Secured 25-19 PC-AN-H2O2I H2O2 DIV I SAMPLE PNL PNL 480 VAC - Ventilated 15 1 PC-AN-H2O2II H2O2 DIV II SAMPLE PNL PNL 480 VAC - Ventilated 15 1 RR MOTOR/PUMP SETS VIBRATION RR-CS-MP1 PNL 15 1 Non-ventilated - Not Secured MONITORING RR-CS-MP2 PNL 15 1 Non-ventilated - Robustly Secured SLC-AG-MIX AG F/ SLC CHEM MIX TK MOT <5 hp N/A 1 Less than 5 horsepower SLC-HTR-C SLC CHEM MIX TK HTR HTR <5 hp N/A 1 Less than 5 horsepower SLC-HTR-TK SLC STORAGE TK HTR HTR <5 hp N/A 1 Less than 5 horsepower SLC-P-A SLC P A PMP 50 hp 21 1 SLC-P-B SLC P B PMP 50 hp 21 1 SLC-P-C SLC MIXING TK XFER P PMP 3/4 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 59 of 169 FIRE ZONE: 5B FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RWCU FDEM ELEC HST H12 (BLDG-HST-BLDG-HST-H12 HOIST N/A 1 Infrequent Use/Overcurrent Protection H12)

EE-PNL-LPR3F LP LPR3F PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-SPR3 MOT SPACE HTR PNL SPR3 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-ECUA XFMR FOR RRMG-A SCOOP TUBE POS XFMR 2 kVA N/A 1 Less than 45 kVA EE-XFMR-ECUB XFMR FOR RRMG-B SCOOP TUBE POS XFMR 2 kVA N/A 1 Less than 45 kVA EE-XFMR-SPR3 XFMR F/ MOT SPACE HTR PNL SPR3 XFMR 30 kVA N/A 1 Less than 45 kVA HV-AC- CPU-40 RB NORMAL RANGE KAMAN ACU AC 115V N/A 1 Not considered ignition source HV-FAN- EF-R-1A RB HVAC SYS EXH FAN FAN 26 1 HV-FAN- EF-R-1B RB HVAC SYS EXH FAN FAN 26 1 HV-FAN- EF-R-1C RX MG ST EXH FAN FAN 26 1 HV-FAN- EF-R-1D RX MG ST EXH FAN FAN 26 1 LRP-PNL- 02-184-A INSTR PNL 2-184-A PNL 15 3 LRP-PNL- 02-184-B INSTR PNL 2-184-B PNL 15 3 LRP-RACK- LIR-HV-MG- MG ST EXH FAN LOC INSTR RACK HV-PNL 15 1 Non-ventilated - Not Secured EF MG-EF LRP-RACK- LIR-HV-R-RB EXH FAN LOC INSTR RACK HV-R-EF PNL 15 1 Non-ventilated - Not Secured EF LRP-RACK- LIR-HV-R-RB FUEL POOL AREA HV LIR HV-R-FP PNL 15 1 Non-ventilated - Not Secured FP LRP-RACK-IUR-RRFCI PNL Ventilated 15 1 RMV-P-40 RB HI RANGE NORM SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMV-P-40A RB AUX P PMP <5 hp N/A 1 Less than 5 horsepower RMV-RM-3 EXHAUST SAMPLER PNL 115 VAC - Ventilated 15 1 RECIRC FLOW CONTR CONSTANT VOLT RRFC-XFMR-2A XFMR N/A 1 Included as part of the MG Sets XFMR 2A RECIRC FLOW CONTR CONSTANT VOLT RRFC-XFMR-2B XFMR N/A 1 Included as part of the MG Sets XFMR 2B RRLO-BLWR-OMEA MG ST A FLUID DR OIL MIST ELIMINATOR BLWR N/A 1 Included as part of the MG Sets RRLO-BLWR-OMEB MG ST B FLUID DR OIL MIST ELIMINATOR BLWR N/A 1 Included as part of the MG Sets RRMG-EXC-MGA RRMG-A EXC EXC N/A 1 Included as part of the MG Sets RRMG-EXC-MGB RRMG-B EXC EXC N/A 1 Included as part of the MG Sets RRMG-GEN-MGA RRMG A GEN GEN 22 1 MG Set RRMG-GEN-MGB RRMG B GEN GEN 22 1 MG Set RRMG-GEN-TACHA TACHOMETER GEN F/ RRMG-A GEN N/A 1 Included as part of the MG Sets RRMG-GEN-TACHB TACHOMETER GEN F/ RRMG-B GEN N/A 1 Included as part of the MG Sets RRMG-MOT-CVFA RRMG-A CS VENT FAN MOT 1/8 hp N/A 1 Included as part of the MG Sets

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 60 of 169 FIRE ZONE: 5B FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RRMG-MOT-CVFB RRMG-B CS VENT FAN MOT 1/8 hp N/A 1 Included as part of the MG Sets RRMG-MOT-MGA RRMG A DR MOT MOT 7000 hp N/A 1 Included as part of the MG Sets RRMG-MOT-MGB RRMG B DR MOT MOT 7000 hp N/A 1 Included as part of the MG Sets RR-VRG-VR1A RRMG-A VRG VRG N/A 1 Included as part of the MG Sets RR-VRG-VR1B RRMG-B VRG VRG N/A 1 Included as part of the MG Sets RR-XFMR-T1A 1T RRMG-A V REG REF XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T1A A1T RRMG-A V REG REF XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T1B 1T RRMG-B V REG REF XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T1B A1T RRMG-B V REG REF XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T2A 4T RRMG-A M PT XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T2A A4T RRMG-A M PT XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T2B 4T RRMG-B M PT XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T2B A4T RRMG-B M PT XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T3A RRMG-A GEN NEUT GRD XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T3B RRMG-B GEN NEUT GRD XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T4A RRMG-A V REG ES XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T4B RRMG-B V REG ES XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T6A RRMG-A V REG ES XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-T6B RRMG-B V REG ES XFMR XFMR N/A 1 Included as part of the MG Sets RR-XFMR-TR1A RRMG-A M TRANSDUCER XFMR N/A 1 Included as part of the MG Sets RR-XFMR-TR1B RRMG-B M TRANSDUCER XFMR N/A 1 Included as part of the MG Sets SGT-FAN- EF-R-1E SGT UNIT A FAN(EF-R-1E) FAN 26 1 SGT-FAN- EF-R-1F SGT UNIT B FAN(EF-R-1F) FAN 26 1 TRITAN PLUNGER PUMP PMP 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 61 of 169 FIRE ZONE: 6 FIRE COMPARTMENT: RB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C5 PORT TOOL BALANCER BLDG-HST-C5 HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-H20 RB CRN H20 (BLDG-HST-H20) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-PNL-LPR3G LP LPR3G PNL 480 VAC 15 1 Non-ventilated EE-PNL-MPR1 MISC PP MPR1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-MPR1 XFMR F/ MISC PP MPR1 XFMR <45 KVA N/A 1 Less than 45 kVA CPSR F/ REFUELING PLAT AIR SUPPLY TSE-CPSR-C CPSR 1-1/2 hp N/A 1 Less than 5 horsepower UNIT REFUELING PLAT EQUIP ASSY CONTR TSE-CS-RPEA PNL 460 VAC 15 1 Non-ventilated PNL TSE-HST-FR FRAM MTD HST F/ REFUELING PLAT HOIST N/A 1 Infrequent Use/Overcurrent Protection TSE-HST-J1 FUEL POOL JIB CRN HST (EAST JIB) HOIST N/A 1 Infrequent Use/Overcurrent Protection TSE-HST-J2 FUEL POOL JIB CRN HST (WEST JIB) HOIST N/A 1 Infrequent Use/Overcurrent Protection TSE-HST-MN MN HST F/ REFUELING PLAT HOIST N/A 1 Infrequent Use/Overcurrent Protection TSE-HST-MR MONORAIL HST F/ REFUELING PLAT HOIST N/A 1 Infrequent Use/Overcurrent Protection TSE-MOT-AHU REFUELING FL AH MOT MOT 10 hp 26 1 TSE-PNL-FPSCP FUEL POOL SIPPER CONTR PNL PNL 15 1 Non-ventilated - Not Secured REFUEL PLAT AIR SUPP UNIT CONTR TSE-XFMR-C XFMR <45 KVA N/A 1 Less than 45 kVA XFMR

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 62 of 169 FIRE ZONE: 7A FIRE COMPARTMENT: CB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H7 SWBP ELEC HST H7 (BLDG-HST-H7) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-MCC-L MCC-L MCC 15 4 EE-MCC-T MCC-T MCC 15 4 EE-MCC-X MCC-X MCC 15 4 EE-PNL-LPCB3 LP LPCB-3 PNL 480 VAC 15 1 Non-ventilated EE-XFMR-LPCB 3A TRANSFORMER (480V/120V) XFMR .5 kVA N/A 1 Less than 45 kVA FDN-P-X SUMP P X PMP <5 hp N/A 1 Less than 5 horsepower HV-FAN- FC-C-1A RHR SWBP RM FCU FAN 30 hp 26 1 HV-P- CTP-C-1A CONTR BLDG CT CIRC P PMP 5 hp 21 1 IA-DRY-A IA DRY A AIR DRY N/A 1 Enclosed - not ignition source IA-DRY-B IA DRY B AIR DRY N/A 1 Enclosed - not ignition source IA-HTR-1A A DRY HTR HTR N/A 1 Totally enclosed motor IA-HTR-1B B DRY HTR HTR N/A 1 Totally enclosed motor IA-XFMR-1TA AIR DRY A CONTR XFMR XFMR 250 VA N/A 1 Less than 45 kVA IA-XFMR-1TB AIR DRY B CONTR XFMR XFMR 250 VA N/A 1 Less than 45 kVA LRP-PNL-710 AIR CPSR COOL CONTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-RACK- LIR-CT-C-A LOCAL RACK RACK 15 1 Non-ventilated - Not Secured SA-CPSR-A SA CPSR A CPSR 9 1 Oil-Filled Compressor SA-CPSR-B SA CPSR B CPSR 9 1 Oil-Filled Compressor SA-CPSR-C SA CPSR C CPSR 9 1 Oil-Filled Compressor SW-P-BPA RHR SWBP A PMP 1000 hp 21 1 SW-P-BPB RHR SWBP B PMP 1000 hp 21 1 SW-P-BPC RHR SWBP C PMP 1000 hp 21 1 SW-P-BPD RHR SWBP D PMP 1000 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 63 of 169 FIRE ZONE: 7B FIRE COMPARTMENT: CB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-STR-250HPCI RHR-STR F/ RHR-MO17 PNL 250 VDC 15 1 PRA Component - Non-ventilated MO17 EE-STRR-250B 250VDC STRR PNL 250 VDC 15 1 PRA Component - Non-ventilated FDN-P-L1 SUMP P L-1 PMP 1.6 hp N/A 1 Less than 5 horsepower FDN-P-L2 SUMP P L-2 PMP 1.6 hp N/A 1 Less than 5 horsepower LRP-RACK-LR164 CPSR A INSTR RACK PNL Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR165 CPSR B INSTR RACK PNL Instrument Rack N/A 1 Not considered ignition source

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 64 of 169 FIRE ZONE: 8A FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN CENTRAL CONTR UNIT CABINET 01 ANN-AC-01 AC 115V N/A 1 Not considered ignition source AC ANN CENTRAL CONTR UNIT CABINET 02 ANN-AC-02 AC 115V N/A 1 Not considered ignition source AC ANN-AC-A ANN MUX CABINET A AC AC 115V N/A 1 Not considered ignition source ANN-MUX-00 ANN MUX CABINET A PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-01 ANN CCU CABINET 01 PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-02 ANN CCU CABINET 02 PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-MCC-LX MCC-LX MCC 15 3 EE-MCC-TX MCC-TX MCC 15 2 EE-PNL-LPCB2 LP LPCB2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPCB2 XFMR F/ LP LPCB2 XFMR 45 kVA 23b 1 HV-XFMR-CRFD CR FIRE SMOKE DMPR XFMR XFMR 1.5 kVA N/A 1 Less than 45 kVA LRP-PNL- 9-30 RCIC REL CABINET 9-30 PNL 15 1 PRA Component - Non-ventilated LRP-PNL- 9-32 ESS I REL CABINET 9-32 PNL 15 3 PRA Component - Non-ventilated LRP-PNL- 9-33 ESS I REL CABINET 9-33 PNL 15 3 PRA Component - Non-ventilated LRP-PNL- 9-39 HPCI REL CABINET 9-39 PNL 15 1 PRA Component - Non-ventilated LRP-PNL- 9-41 INBOARD ISO V REL RACK 9-41 PNL 15 1 PRA Component - Non-ventilated LRP-PNL- 9-42 OUTBOARD ISO V REL RACK 9-42 PNL 15 1 PRA Component - Non-ventilated LRP-PNL- 9-45 AUTO BD REL CABINET 9-45 PNL 15 1 PRA Component - Non-ventilated LRP-PNL-C22 ARI ATWS RPT LOC CONTR PNL PNL 15 1 Ventilated

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 65 of 169 FIRE ZONE: 8B FIRE COMPARTMENT: CB-C No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-BAT-24 1B1 24VDC STA SERV BAT 1B1 BAT 1 1 EE-BAT-24 1B2 24VDC STA SERV BAT 1B2 BAT 1 1 EE-CHG-24 1B1 24VDC STA SERV BAT CHGR 1B1 CHG 10 1 EE-CHG-24 1B2 24VDC STA SERV BAT CHGR 1B2 CHG 10 1 EE-XFMR-CDP1B XFMR F/ CRIT DISTR PNL CDP1B XFMR 75 kVA 23b 1 RPS-CC-RPSB CC F/ RPS MG ST B PNL 15 1 Non-ventilated - Not Secured RPS-EPA-1B1 RPS MG ST B ELEC PROT ASSY PNL 15 1 Non-ventilated - Robustly Secured RPS-EPA-1B2 RPS MG ST B ELEC PROT ASSY PNL 15 1 Non-ventilated - Robustly Secured RPSPP1B ALT POWER SUPPLY ELEC RPS-EPA-1B3 PNL 15 1 Non-ventilated - Robustly Secured PROT ASSY RPSPP1B ALT POWER SUPPLY ELEC RPS-EPA-1B4 PNL 15 1 Non-ventilated - Robustly Secured PROT ASSY RPS-GEN-RPSB GEN F/ RPS MG ST B GEN N/A 1 Included as part of the MG Sets RPS-MG-RPSB RPS MOT GEN ST B MG 25 hp 22 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 66 of 169 FIRE ZONE: 8C FIRE COMPARTMENT: CB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-BAT-24 1A1 24VDC STA SERV BAT 1A1 BAT 1 1 EE-BAT-24 1A2 24VDC STA SERV BAT 1A2 BAT 1 1 EE-CHG-24 1A1 24VDC STA SERV BAT CHGR 1A1 CHG 10 1 EE-CHG-24 1A2 24VDC STA SERV BAT CHGR 1A2 CHG 10 1 EE-PNL-CDP1A CRIT DISTR PNL CDP1A PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-PNL-CDP1B CRIT DISTR PNL CDP1B PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-XFMR-CDP1A XFMR F/ CRIT DISTR PNL CDP1A XFMR 75 kVA 23b 1 RPS-CC-RPSA CC F/ RPS MG ST A PNL 15 1 Non-ventilated - Robustly Secured RPS-EPA-1A1 RPS MG ST A ELEC PROT ASSY PNL 15 1 Non-ventilated - Robustly Secured RPS-EPA-1A2 RPS MG ST A ELEC PROT ASSY PNL 15 1 Non-ventilated - Robustly Secured RPSPP1A ALT POWER SUPPLY ELEC RPS-EPA-1A3 PNL 15 1 Non-ventilated - Robustly Secured PROT ASSY RPSPP1A ALT POWER SUPPLY ELEC RPS-EPA-1A4 PNL 15 1 Non-ventilated - Robustly Secured PROT ASSY RPS-GEN-RPSA GEN F/ RPS MG ST A GEN N/A 1 Included as part of the MG Sets RPS-MG-RPSA RPS MOT GEN ST A MG 25 hp 22 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 67 of 169 FIRE ZONE: 8D FIRE COMPARTMENT: CB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CONTR BLDG ELEC HST H5 (BLDG-HST-BLDG-HST-H5 HOIST N/A 1 Infrequent Use/Overcurrent Protection H5)

EE-CHG-125 1C 125V 200A BAT CHGR 1C CHG 10 2 EE-CHG-250 1C 250VDC STA SERV BAT CHGR 1C CHG 10 2 EE-PNL-LOPSA LP LOPS-A PNL 480 VAC 15 1 Non-ventilated HV-FAN- SF-SWGR-1A DC SWGR RM 1A SF FAN 1/2 hp N/A 1 Less than 5 horsepower HV-FAN- SF-SWGR-1B DC SWGR RM 1B SF FAN 1/2 hp N/A 1 Less than 5 horsepower HV-HTR- EUH-C-1A BATTERY ROOM 1A UNIT HEATER HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EUH-C-1B BATTERY ROOM 1B UNIT HEATER HTR <5 hp N/A 1 Less than 5 horsepower RSWP GLAND WTR SUPPLY CONTR PNL LRP-PNL-RGPA PNL 15 1 Non-ventilated - Robustly Secured A

RSWP GLAND WTR SUPPLY CONTR PNL LRP-PNL-RGPB PNL 15 1 Non-ventilated - Robustly Secured B

SS-XFMR-UPS2 IVTR-UPS2 XFMR XFMR 15 kVA N/A 1 Less than 45 kVA

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 68 of 169 FIRE ZONE: 8E FIRE COMPARTMENT: CB-A-1 No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-BAT-125 1A 125VDC STA SERV BAT 1A BAT 1 1 EE-BAT-250 1A 250VDC STA SERV BAT 1A BAT 1 1 EE-PNL-A 125VDC DISTR PNL A PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-AA2 125VDC PNL AA2 PNL 125 VDC 15 1 PRA Component - Non-ventilated 125VDC DISTRIBUTION PANEL A EE-SW-A PNL 125 VDC 15 1 Non-ventilated - Not Secured TRANSFER SWITCH

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 69 of 169 FIRE ZONE: 8F FIRE COMPARTMENT: CB-B No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-BAT-125 1B 125VDC STA SERV BAT 1B BAT 1 1 EE-BAT-250 1B 250VDC STA SERV BAT 1B BAT 1 1 EE-PNL-B 125VDC DISTR PNL B PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-BB2 125VDC PNL BB2 PNL 125 VDC 15 1 PRA Component - Non-ventilated 125VDC DISTRIBUTION PANEL B EE-SW-B PNL 125 VDC 15 1 Non-ventilated - Not Secured TRANSFER SWITCH

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 70 of 169 FIRE ZONE: 8G FIRE COMPARTMENT: CB-B No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-CHG-125 1B 125VDC STA SERV BAT CHGR 1B CHG 10 2 EE-CHG-250 1B 250VDC STA SERV BAT CHGR 1B CHG 10 2 EE-PNL-BB4 DC PP BB4 DIV II PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-SWGR-125 1B 125VDC 1B SWGR SWGR 15 3 EE-SWGR-250 1B 250VDC SWGR BUS 1B (DIV II) SWGR 15 2 LOC PNL F/ ESSENTIAL C BLDG SYS DIV HV-PNL-ECBHII PNL 125 VDC 15 1 Non-ventilated - Robustly Secured II

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 71 of 169 FIRE ZONE: 8H FIRE COMPARTMENT: CB-A-1 No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-CHG-125 1A 125VDC STA SERV BAT CHGR 1A CHG 10 2 EE-CHG-250 1A 250VDC STA SERV BAT CHGR 1A CHG 10 2 EE-IVTR-1A NBPP IVTR 1A IVTR Ventilated 15 2 EE-PNL-AA4 DC PP AA4 DIV I PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-SWGR-125 1A 125VDC 1A SWGR SWGR 15 3 EE-SWGR-250 1A 250VDC SWGR BUS IA (DIV I) SWGR 15 2 ESSENT CONTR BLDG SYS DIV I LOC HV-PNL-ECBHI PNL 125 VDC 15 1 Non-ventilated - Robustly Secured PNL

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 72 of 169 FIRE ZONE: 9A FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-MUX-D ANN MUX D PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-E ANN MUX E PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-F ANN MUX F PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-G ANN MUX G PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-H ANN MUX H PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-I ANN MUX I PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-J ANN MUX J PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-K ANN MUX K PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-L ANN MUX L PNL 125 VDC 15 1 Non-ventilated - Robustly Secured ANN-MUX-M ANN MUX M PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-CCP1A CRIT CONTR PNL CCP1A PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-PNL-CCP1B CRIT CONTR PNL CCP1B PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-PNL-CPP CRIT INST & CPP PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-PNL-DCA 24VDC PP DC-A PNL 24 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-DCB 24VDC PP DC-B PNL 24 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-NBPP NBPP PNL 115/230 VAC 15 1 PRA Component - Non-ventilated EE-PNL-RPSPP1A RPSPP RPSPP1A PNL 120 VAC 15 1 PRA Component - Non-ventilated EE-PNL-RPSPP1B RPSPP RPSPP1B PNL 120 VAC 15 1 PRA Component - Non-ventilated EE-PNL-UPPCA PP UPP-C-A PNL 120 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-UPS1A PMIS UPS MN PNL PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-UPS1B PMIS UPS SUB PNL PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-NBPP XFMR F/ EMERG FDR TO NBPP XFMR 25 kVA 23b 1 PRA Component - Less than 45 kVA HV-AC- AC-C-1A MN CR ACU AC < 5 hp N/A 1 Less than 5 horsepower HV-FAN- BF-C-1B CA RM HVAC EXH FAN FAN 26 1 LRP-PNL-PL1 FOXBORO PNL PL1-DIV I PNL Ventilated 15 1 Ventilated LRP-PNL-PL2 FOXBORO PNL PL2-DIV II PNL Ventilated 15 1 Ventilated PC-CS-H2_O2I CONTAINMENT H2/O2 REMOTE PNL DIV I PNL 120 VAC - Ventilated 15 1 Ventilated CONTAINMENT H2/O2 REMOTE PNL DIV PC-CS-H2_O2II PNL 120 VAC - Ventilated 15 1 Ventilated II PMIS-MUX-LNK2 PMIS DATA ACQUISITION LINK PNL 115 VAC - Ventilated 15 1 Ventilated PMIS-MUX-LNK6 CLASS 1E PMIS DATA ACQUISITION LINK PNL 115 VAC - Ventilated 15 1 Ventilated PMIS-MUX-LNK7 CLASS 1E PMIS DATA ACQUISITION LINK PNL 115 VAC - Ventilated 15 1 Ventilated RFC-CC-1A SPU 1A PNL Ventilated 15 1 Ventilated RFC-CC-1B SPU 1B PNL Ventilated 15 1 Ventilated

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 73 of 169 FIRE ZONE: 9A FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections SS-BAT-UPS2 125V BAT UPS2 PNL 125 VDC - Ventilated 15 1 Ventilated SS-IVTR-UPS2 IVTR UPS2 SS IVTR Ventilated 15 1 Ventilated SS-SW-BYPASS PNL 300 VAC N/A 1 Less than 4 Switches SS-SW-STATIC PNL 120/240 VAC N/A 1 Less than 4 Switches APARS BOARD PANEL PNL Ventilated 15 1 Ventilated RTD CABINET B PNL N/A 1 Less than 4 Switches COMPUTER DIGITAL CABINET B PNL N/A 1 Less than 4 Switches THERMOCOUPLE CABINET B PNL N/A 1 Less than 4 Switches LRP-PNL-ARC-CCP CPP AUX RELAY CABINET PNL 15 1 PRA Component - Non-ventilated LRP-PNL-ARC-CCP1A CCP1A AUX RELAY CABINET PNL 15 1 PRA Component - Non-ventilated LRP-PNL-ARC-CCP1B CCP1B AUX RELAY CABINET PNL 15 1 PRA Component - Non-ventilated LRP-PNL-ARC-NBPP NBPP AUX RELAY CABINET PNL 15 1 PRA Component - Non-ventilated C6P XFMR XFMR 3 kVA N/A 1 Less than 45 kVA C7P XFMR XFMR 3 kVA N/A 1 Less than 45 kVA XFMR C2P to C2PA SECURITY SYSTEM XFMR 5 kVA N/A 1 Less than 45 kVA CPP TRANSFER SWITCH PNL 15 1 Non-ventilated - Robustly Secured ANNUNCIATOR POWER SUPPLY CAB A PNL 15 1 Non-ventilated - Robustly Secured ANNUNCIATOR POWER SUPPLY CAB B PNL 15 1 Non-ventilated - Robustly Secured ANNUNCIATOR POWER SUPPLY CAB C PNL 15 1 Non-ventilated - Robustly Secured ANNUNCIATOR POWER SUPPLY CAB D PNL 15 1 Non-ventilated - Robustly Secured ISOLATION RELAY CABINET A PNL 15 1 Non-ventilated - Robustly Secured ISOLATION RELAY CABINET B PNL 15 1 Non-ventilated - Robustly Secured ISOLATION RELAY CABINET C PNL 15 1 Non-ventilated - Robustly Secured ISOLATION RELAY CABINET D PNL 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 74 of 169 FIRE ZONE: 9B FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FCU- FC-CH-1A CA EXP RM FCU FCU <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 75 of 169 FIRE ZONE: 10A FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CABINET 40-23 PNL 15 1 Non-ventilated - Not Secured CABINET 40-24 PNL 15 1 Non-ventilated - Not Secured CABINET 40-25 PNL 15 1 Non-ventilated - Not Secured CABINET 40-26 PNL 15 1 Non-ventilated - Not Secured CABINET 40-27 PNL Ventilated 15 4 CABINET 40-28 PNL 15 1 Non-ventilated - Not Secured EE-PNL-LPCB2A LP LPCB2A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured HV-AC- AC-C-1B COMPUTER RM ACU AC < 5 hp N/A 1 Less than 5 horsepower HV-AC- AC-C-1C COMPUTER RM DIRECT EXP CDSR 1C AC < 5 hp N/A 1 Less than 5 horsepower HV-AC- AC-C-1D COMPUTER RM DIRECT EXP CDSR 1D AC < 5 hp N/A 1 Less than 5 horsepower HV-AC- AC-C-1E COMPUTER RM ACU 1E AC < 5 hp N/A 1 Less than 5 horsepower HV-AC- AC-C-1F COMPUTER RM ACU 1F AC < 5 hp N/A 1 Less than 5 horsepower HV-CS- AC-C-1B SPARED IN PL PNL N/A 1 Spared in Place HV-FAN- BF-C-1A CR EMERG FAN FAN 26 1 HV-FAN- SF-C-1C COMPUTER RM AC UNIT SF FAN 2 hp N/A 1 Less than 5 horsepower COMPUTER RM AC UNIT SF SPARED IN HV-FAN- SF-C-1D FAN 26 1 PL HV-FAN- SF-C-1E COMPUTER RM FRESH AIR SF & MOT FAN <5 hp N/A 1 Less than 5 horsepower COMPUTER RM FRESH AIR SUPP DUCT HV-HTR- EHC-C-1A HTR <5 hp N/A 1 Less than 5 horsepower HTR LRP-RACK- LIR-AC-C-B COMPUTER RM AC UNIT 1-AC-C-1B LIR RACK 15 1 Non-ventilated - Not Secured PNL 9-86 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-100 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-101 RPIS/RWM D/A POWER SUPPLIES PNL Ventilated 15 1 PNL-9-102 RPIS/RWM COMPUTER & DATA ACQ PNL Ventilated 15 1 PNL-9-103 PMIS A DATA ACQUISITION PNL Ventilated 15 1 PNL-9-104 PMIS A COMPUTER PNL Ventilated 15 1 PNL-9-105 PMIS PERIPHERAL SWITCH PNL Ventilated 15 1 PNL-9-106 PMIS B COMPUTER PNL Ventilated 15 1 PNL-9-107 PMIS B DATA ACQUISITION PNL Ventilated 15 1 PNL-9-108 PNL Ventilated 15 1 PNL-9-109 PNL Ventilated 15 1 PNL-9-110 PNL Ventilated 15 1 PNL-9-87 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-88 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 76 of 169 FIRE ZONE: 10A FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections PNL-9-89 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-90 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-91 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-92 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-93 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-94 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-95 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-96 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-97 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-98 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 PNL-9-99 PMIS DATA ACQUISITION LINK PNL Ventilated 15 1 SS-PNL-CPU1 PNL Ventilated 15 1 SS-PNL-CPU2 PNL Ventilated 15 1 TELECOM CABINET #3 PNL Ventilated 15 3 DEH COMPUTER CABINET 00 PNL Ventilated 15 2 DEH COMPUTER CABINET 01 PNL Ventilated 15 2

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 77 of 169 FIRE ZONE: 10B FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-CBPP PNL CBPP PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-DDP1 DIMMING DISTR PNL CKT 1-4) PNL 15 1 Non-ventilated - Not Secured EE-PNL-DDP2 DIMMING DISTR PNL CKT 5-8) PNL 15 1 Non-ventilated - Not Secured EE-PNL-DDP3 DIMMING DISTR PNL CKT 9-12) PNL 15 1 Non-ventilated - Not Secured EE-PNL-LPCB1 LP LPCB1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPCEM1 LP LPCEM1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-CBPP XFMR F/ PNL CBPP XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPCB1 XFMR F/ LP LPCB1 XFMR 45 kVA 23b 1 EE-XFMR-LPCEM1 XFMR F/ LP LPCEM1 XFMR 15 kVA N/A 1 Less than 45 kVA HV-FAN- EF-C-1B MN CR EXH FAN FAN < 5 HP N/A 1 Less than 5 horsepower LRP-PNL- 9-10 PRCS RM VERT BD 9-10 PNL Ventilated 15 2 LRP-PNL- 9-11 AREA CABINET 9-11 PNL Ventilated 15 1 LRP-PNL- 9-12 STARTUP RANGE NM CABINET 9-12 PNL Ventilated 15 3 LRP-PNL- 9-13 TIP CONTR & M CABINET 9-13 PNL Ventilated 15 2 LRP-PNL- 9-14 PWR RANGE NM CABINET 9-14 PNL Ventilated 15 5 LRP-PNL- 9-15 CH A PCIS & RPS SYS VBD 9-15 PNL Ventilated 15 3 LRP-PNL- 9-16 RX PROT SYS TEST M VERT BD 9-16 PNL Ventilated 15 1 LRP-PNL- 9-17 CH B PCIS & RPS SYS VBD 9-17 PNL Ventilated 15 3 LRP-PNL- 9-18 FW & RECIRC VERT BD 9-18 PNL Ventilated 15 2 LRP-PNL- 9-19 PRCS INSTR VERT BD 9-19 PNL Ventilated 15 1 LRP-PNL- 9-2 AREA PRCS RR VERT BD 9-2 PNL Ventilated 15 2 LRP-PNL- 9-21 NUCLEAR STM TR VERT BD 9-21 PNL Ventilated 15 3 LRP-PNL- 9-27 CONT RD POS INFO SYS CABINET 9-27 PNL Ventilated 15 3 LRP-PNL- 9-28 CRD SEL REL VERT BD 9-28 PNL Ventilated 15 5 REACTOR CONTAINMENT ISO BENCH BD LRP-PNL- 9-3 PNL N/A 5 Included in Main Control Board 9-3 LRP-PNL- 9-38 JET P INSTR CABINET 9-38 PNL Ventilated 15 1 LRP-PNL- 9-4 RWCU RECIRC BENCH BD 9-4 PNL N/A 6 Included in Main Control Board LRP-PNL- 9-5 REACTOR CONTROLBENCH BD 9-5 PNL N/A 5 Included in Main Control Board LRP-PNL-A FW COND CIRC & SW BENCH BD-A PNL N/A 2 Included in Main Control Board LRP-PNL-B TU & AUX BENCH BD-B PNL N/A 3 Included in Main Control Board LRP-PNL-C GEN ELEC BENCH BD-C PNL N/A 5 Included in Main Control Board LRP-PNL-E PLANT EQUIP TEMP R VERT BD-E PNL Ventilated 15 4 LRP-PNL-F GEN & XFMR PROT VERT BD-F PNL Ventilated 15 5

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 78 of 169 FIRE ZONE: 10B FIRE COMPARTMENT: CB-D No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LRP-PNL-FP SPKLR CONTR & FIRE ALM PNL-FP PNL Ventilated 15 3 VBD-FP LRP-PNL-G CONVERTER & PWR SUPPLY VERT BD-G PNL Ventilated 15 6 PRIME CONTAIN VENT & N2 INERT VERT LRP-PNL-H PNL Ventilated 15 2 VBD-H BD-H LRP-PNL-J C-932(VBD-J) MISC CONTR VERT BD-J PNL Ventilated 15 2 VBD-J LRP-PNL-K GAS TREAT & VENT VERT BD-K PNL Ventilated 15 2 VBD-K LRP-PNL-M COOL WTR SYS VERT BD-M PNL Ventilated 15 2 VBD-M PC SBNI TRAIN A CONTR PNL BOARD LRP-PNL-P1 PNL Ventilated 15 2 VBD-P1 VPB-P1 PC SBNI TRAIN B CONTR PNL BOARD LRP-PNL-P2 PNL Ventilated 15 2 VBD-P2 VPB-P2 LRP-PNL-Q RAD VENT MONITORING SYS VERT BD-Q PNL Ventilated 15 2 LRP-PNL-R HV VERT BD-R PNL Ventilated 15 2 VBD-R LRP-PNL-S H2600 SUMP P CONTR VERT BD-S PNL Ventilated 15 1 VBD-S RACK FOR RECORDER ETHERNET LRP-RACK-CRLAN01 RACK Ventilated 15 1 EQUIP LRP-RACK-CRLAN02 RACK FOR ETHERNET EQUIPMENT RACK N/A 1 Empty Rack PMIS-MUX-LNK3 PMIS DATA ACQUISITION LINK (PNL-9-80) PNL 115 VAC - Ventilated 15 1 RMV-CAM-20 PNL 120 VAC - Ventilated 15 1 SS-CC-SAS SS SAS PNL 120 VAC - Ventilated 15 7 SEISMIC MONITORING PANEL PNL Ventilated 15 1 Main Control Board Includes Several MAIN CONTROL BOARD MCB 4 1 Panels

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 79 of 169 FIRE ZONE: 11A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LO-P-T MN LO XFER P PMP 10 hp 21 1 LO-TK-ST TU LO STORAGE TK TNK N/A 1 T/G OIL TURB OIL 35 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 80 of 169 FIRE ZONE: 11B FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections TROLLEY HOIST-DEPLETED ZINC OXIDE BLDG-HST-OWC2 HOIST N/A 1 Infrequent Use/Overcurrent Protection SKID CM-P-CT COND XFER P PMP 15 hp N/A 1 Spared in place CW-P-VPA VAC PRIMING P A PMP 75 hp 21 1 CW-P-VPB VAC PRIMING P B PMP 75 hp 21 1 EE-MCC-J MCC-J MCC 15 5 EE-PNL-CPP1 CRIT INST & CPP CPP1 PNL 120/240 VAC 15 1 PRA Component - Non-ventilated EE-PNL-LPTG3 LP LPTG3 PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG4 LP LPTG4 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPTG4 XFMR F/ LP LPTG4 XFMR 30 kVA N/A 1 Less than 45 kVA FDN-P-V1 SUMP P V-1 PMP 3 hp N/A 1 Less than 5 horsepower FDN-P-V2 SUMP P V-2 PMP 3 hp N/A 1 Less than 5 horsepower H2-CBX-GDRY PNL 15 1 Non-ventilated - Robustly Secured H2-DRY-GA GEN H2 GAS DRY TWR A AIR DRY N/A 1 Enclosed - not ignition source H2-DRY-GB GEN H2 GAS DRY TWR B AIR DRY N/A 1 Enclosed - not ignition source H2-M-H1 GENERATOR CONDITION MONITOR PNL 125 VDC - Ventilated 15 1 H2-R-H1 PNL Ventilated 15 1 LRP-RACK-LR105 H2 COOL LOC RACK 105 PNL 15 1 Non-ventilated - Robustly Secured T/G HYDROGEN GEN H2 34 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 81 of 169 FIRE ZONE: 11C FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections FDN-P-U1 SUMP P U-1 PMP 3 hp N/A 1 Less than 5 horsepower FDN-P-U2 SUMP P U-2 PMP 3 hp N/A 1 Less than 5 horsepower LO-P-AS AIR SIDE SEAL OIL P PMP 40 hp 21 1 LO-P-ASB AIR SIDE SEAL OIL BACKUP P PMP 25 hp 21 1 LO-P-HS H2 SIDE SEAL OIL P PMP 7-1/2 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 82 of 169 FIRE ZONE: 11D FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HPI-CS-TG1 CAMERA CONN POINT TG1 PNL 15 1 Non-ventilated - Not Secured HV-FAN- HF-T-1A BF F/ SR-1A HOOD EXH FAN 1/2 hp N/A 1 LRP-RACK-SRA TB SAMPLG RACK 1A RACK 15 1 Non-ventilated - Not Secured LRP-RACK-SRD COND DR RACK PNL 15 1 Non-ventilated - Not Secured MS-P-SB MS SAMPLE BOOSTER P PMP 2 hp N/A 1 Less than 5 horsepower RF-P-DTPA FW DR TK P A PMP 1 hp N/A 1 Less than 5 horsepower RF-P-DTPB FW DR TK P B PMP 1 hp N/A 1 Less than 5 horsepower RF-P-DTPC FW DR TK P C PMP 1 hp N/A 1 Less than 5 horsepower RW-P-P1 TB EQUIP DR SUMP P P1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-P2 TB EQUIP DR SUMP P P2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-Q1 TB FL DR SUMP P Q1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-Q2 TB FL DR SUMP P Q2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-R1 TB FL DR SUMP P R1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-R2 TB FL DR SUMP P R2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-S1 TB FL DR SUMP P S1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-S2 TB FL DR SUMP P S2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-T1 TB EQUIP DR SUMP P T1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-T2 TB EQUIP DR SUMP P T2 PMP 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 83 of 169 FIRE ZONE: 11E FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H8A A RFP HST H8A (BLDG-HST-H8A) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-H8B B-RFP HST H8B (BLDG-HST-H8B) HOIST N/A 1 Infrequent Use/Overcurrent Protection RFLO-P-A1 RFLO P A-1 PMP 15 hp 21 1 RFLO-P-A2 RFLO P A-2 PMP 15 hp 21 1 RFLO-P-B1 RFLO P B-1 PMP 15 hp 21 1 RFLO-P-B2 RFLO P B-2 PMP 15 hp 21 1 RFLO-P-ELOA EMERG DC LO P A PMP 5 hp 21 1 RFLO-P-ELOB EMERG DC LO P B PMP 5 hp 21 1 RFLO-P-TA RFLO XFER P A PMP 1-1/2 hp N/A 1 Less than 5 horsepower RFLO-P-TB RFLO XFER P B PMP 1-1/2 hp N/A 1 Less than 5 horsepower RFLO-TK-A RFPT A LO RESVR TNK N/A 1 RFLO-TK-B RFPT B LO RESVR TNK N/A 1 RF-P-A FW RFP A PMP 1-1/2 hp N/A 1 Less than 5 horsepower RF-P-B FW RFP B PMP 1-1/2 hp N/A 1 Less than 5 horsepower RF-TU-A FW RFP TU A & CVL MOT 8850 hp 32 1 RF-TU-B FW RFP TU B & CVL MOT 8850 hp 32 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 84 of 169 FIRE ZONE: 11F FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LRP-RACK-IRD TB LOC INSTR RACK 1D RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-IRE TB LOC INSTR RACK 1E RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-IRF TB LOC INSTR RACK 1F RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR161 RACK-LR161 RACK Instrument Rack N/A 1 Not considered ignition source RF-CBX-1A PNL 15 1 Non-ventilated - Robustly Secured RF-CBX-1B PNL 15 1 Non-ventilated - Robustly Secured RFC-CC-2A LEC 1A PNL Ventilated 15 1 RFC-CC-2B LEC 1B PNL Ventilated 15 1 RFC-CC-3 REMOTE CABINET PNL Ventilated 15 1 ST-P- SP-T-1A TB SEW EJECTION SUMP P PMP 3 hp N/A 1 Less than 5 horsepower TELECOMMUNICATIONS FIBER DIST.

PNL Ventilated 15 1 BOX

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 85 of 169 FIRE ZONE: 11G FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections AR-AE-SJAEA SJAE A MOT 25 hp 14 1 AR-AE-SJAEB SJAE B MOT 25 hp 14 1 AR-FAN-GSCEA GLAND ST CDSR EXH A FAN 25 hp 26 1 AR-FAN-GSCEB GLAND ST CDSR EXH B FAN 25 hp 26 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 86 of 169 FIRE ZONE: 11H FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections AR-P-MVA MECH VAC P A PMP 150 hp 21 1 AR-P-MVB MECH VAC P B PMP 150 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 87 of 169 FIRE ZONE: 11J FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections COND BOOSTER P HST I BEAM BLDG-BLDG-HST-6 HOIST N/A 1 Infrequent Use/Overcurrent Protection HST-CP BLDG-HST-CP COND P ELEC HST CP (BLDG-HST-CP) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-MCC-D MCC-D MCC 15 6 EE-PNL-LPTG1 LP LPTG1 PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG2 LP LPTG2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STR-250TURB STR F/ AIR SIDE SEAL OIL BACKUP P PNL 250 VDC 15 1 PRA Component - Non-ventilated ASSOBUP EE-STR-250TURB STR F/ MN TU EMERG OIL P PNL 250 VDC 15 1 PRA Component - Non-ventilated MTEOP EE-STR-250TURB STR F/ FD RFPT EMERG OIL P A PNL 250 VDC 15 1 PRA Component - Non-ventilated RFPTEOP-A EE-STR-250TURB STR F/ FD RFPT EMERG OIL P B PNL 250 VDC 15 1 PRA Component - Non-ventilated RFPTEOP-B EE-STR-301MV STR F/ MC-301MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STR-302MV STR F/ MC-302MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STR-303MV STR F/ MC-303MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STRR-250TURB 250VDC TB STRR PNL 250 VDC 15 1 PRA Component - Non-ventilated EE-SW-250TURB XFER SW F/ 250VDC TB STRR PNL 250 VDC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPTG2 XFMR F/ LP LPTG2 XFMR 30 kVA N/A 1 Less than 45 kVA FDN-P-M1 SUMP P M-1 PMP 3 hp N/A 1 Less than 5 horsepower FDN-P-M2 SUMP P M-2 PMP 3 hp N/A 1 Less than 5 horsepower MC-P-A COND P A PMP 800 hp 21 1 MC-P-B COND P B PMP 800 hp 21 1 MC-P-BPA COND BOOSTER P A PMP 2500 hp 21 1 MC-P-BPALOA COND BOOSTER P A AUX LO P PMP N/A 1 Part of Booster Pumps MC-P-BPALOB COND BOOSTER P B AUX LO P PMP N/A 1 Part of Booster Pumps MC-P-BPALOC COND BOOSTER P C AUX LO P PMP N/A 1 Part of Booster Pumps MC-P-BPB COND BOOSTER P B PMP 2500 hp 21 1 MC-P-BPC COND BOOSTER P C PMP 2500 hp 21 1 MC-P-BPLOA COND BOOSTER P A LO P SHAFT DR PMP N/A 1 Part of Booster Pumps MC-P-BPLOB COND BOOSTER P B LO P SHAFT DR PMP N/A 1 Part of Booster Pumps MC-P-BPLOC COND BOOSTER P C LO P SHAFT DR PMP N/A 1 Part of Booster Pumps MC-P-C COND P C PMP 800 hp 21 1 MC-PNL-19 COND SYS AUX EQUIP PNL PNL Ventilated 15 1 TEC-P-A TEC P A PMP 200 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 88 of 169 FIRE ZONE: 11J FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections TEC-P-B TEC P B PMP 200 hp 21 1 TEC-P-C TEC P C PMP 200 hp 21 1 MAIN TURBINE EMERGENCY OIL PUMP PNL Ventilated 15 1 PANEL

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 89 of 169 FIRE ZONE: 11K FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LO-FAN-TOCV TU OIL COND VENT FAN 1/4 hp N/A 1 Less than 5 horsepower LO-P-C LO CIRC P PMP 5 hp 21 1 T/G OIL TURB OIL 35 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 90 of 169 FIRE ZONE: 11L FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 91 of 169 FIRE ZONE: 12A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-AC-S ANN MUX CABINET S AC AC 115V N/A 1 Not considered ignition source ANN-MUX-S ANN MUX S PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-CAP-ISO A A PH ISO PH SURGE CAP SWGR 24 kV 15 1 HEAF EE-CAP-ISO A A PH ISO PH SURGE CAP SWGR 24 kV 16b 1 HEAF EE-CAP-ISO B B PH ISO PH SURGE CAP SWGR 24 kV 15 1 HEAF EE-CAP-ISO B B PH ISO PH SURGE CAP SWGR 24 kV 16b 1 HEAF EE-CAP-ISO C C PH ISO PH SURGE CAP SWGR 24 kV 15 1 HEAF EE-CAP-ISO C C PH ISO PH SURGE CAP SWGR 24 kV 16b 1 HEAF EE-MCC-B MCC-B MCC 15 8 EE-MCC-G MCC-G MCC 15 8 EE-PNL-LPTG7 LP LPTG7 PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG8 LP LPTG8 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPTG8 XFMR F/ LP LPTG8 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-MGG MN GEN GRD XFMR XFMR 100 kVA 23b 1 HV-FAN- SF-T-1C-A HV-T-1C SF FAN 40 hp 26 1 HV-FAN- SF-T-1C-B HV-T-1C SF FAN 40 hp 26 1 HV-MOT-BDC1 BUS DUCT COOL FAN MOT MOT 75 hp 26 1 HV-MOT-BDC2 BUS DUCT COOL FAN MOT MOT 75 hp 26 1 LO-FAN-ALSVE AUX LOOP SEAL EXTRAC FAN FAN 2 hp N/A 1 Less than 5 horsepower LO-FAN-GLSVE GEN LOOP SEAL VAP EXTRAC FAN 2 hp N/A 1 Less than 5 horsepower LO-TK-GLS GEN LOOP SEAL TK TNK N/A 1 LRP-RACK- LIR-HV-T-C TB HV UNIT 1-HV-T-1C LIR PNL 15 1 Non-ventilated - Not Secured PMIS-MUX-LNK5 PMIS DATA ACQUISITION LINK (PNL-9-85) PNL 115 VAC - Ventilated 15 1 TGI-XFMR-RF1 RF MONITOR ISO XFMR XFMR .5 kVA N/A 1 Less than 45 kVA TG CABINET FAN SELECTOR SWITCH PNL Ventilated 15 3 BREAKER BOX

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 92 of 169 FIRE ZONE: 12B FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-AC-C ANN MUX CABINET C AC AC 115V N/A 1 Not considered ignition source ANN-MUX-C ANN MUX C PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-MCC-C MCC-C MCC 15 8 EE-MCC-H MCC-H MCC 15 9 EE-PNL-CCP2A CRIT CONTR PNL CCP2A PNL 120/240 VAC 15 1 Non-ventilated - Not Secured EE-PNL-CCP2B CRIT CONTR PNL CCP2B PNL 120/240 VAC 15 1 Non-ventilated - Not Secured EE-XFMR-CBX5 XFMR <45 kVA N/A 1 Less than 45 kVA HPI-CBX-5 PNL Ventilated 15 1 HPI-CS-TG3 CCTV CAMERA CONN/MONIT CABINET PNL 15 1 Non-ventilated - Not Secured LRP-PNL- 17-116 OG RACK 17-116 RACK 15 1 Non-ventilated - Robustly Secured LRP-PNL- 17-136 OG VIAL SAMPLER 17-136 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-IRA TB LOC INSTR RACK 1A RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-IRB TB LOC INSTR RACK 1B PNL Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR102 TB LOC RACK 102 PNL 15 6 Non-ventilated - Not Secured LRP-RACK-LR103 TB LOC RACK 103 PNL 15 1 Non-ventilated - Not Secured LRP-RACK-LR120 ST TP STA BYPASS V CONTR PNL 120 RACK 15 1 Non-ventilated - Robustly Secured OG-P-OGS OG SAMPLE P PMP <5 hp N/A 1 Less than 5 horsepower OG-P-OGV OG VAC P PMP <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 93 of 169 FIRE ZONE: 12C FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H4 HTR BAY PLUG HST H4 (BLDG-HST-H4) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-STR-PPTGSB 203MV STR F/ MS-203MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STR-PPTGSB 204MV STR F/ MS-204MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STR-PPTGSB 205MV STR F/ MS-205MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STRR-PPTGSB TB STRR PP-TG-SB PNL 15 1 Non-ventilated - Robustly Secured MS-HTR-143A ST LEAK DETECTION TEST HTR 143A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-143B ST LEAK DETECTION TEST HTR 143B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-143C ST LEAK DETECTION TEST HTR 143C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-143D ST LEAK DETECTION TEST HTR 143D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-144A ST LEAK DETECTION TEST HTR 144A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-144B ST LEAK DETECTION TEST HTR 144B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-144C ST LEAK DETECTION TEST HTR 144C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-144D ST LEAK DETECTION TEST HTR 144D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-145A ST LEAK DETECTION TEST HTR 145A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-145B ST LEAK DETECTION TEST HTR 145B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-145C ST LEAK DETECTION TEST HTR 145C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-145D ST LEAK DETECTION TEST HTR 145D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-146A ST LEAK DETECTION TEST HTR 146A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-146B ST LEAK DETECTION TEST HTR 146B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-146C ST LEAK DETECTION TEST HTR 146C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-146D ST LEAK DETECTION TEST HTR 146D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-147A ST LEAK DETECTION TEST HTR 147A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-147B ST LEAK DETECTION TEST HTR 147B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-147C ST LEAK DETECTION TEST HTR 147C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-147D ST LEAK DETECTION TEST HTR 147D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-148A ST LEAK DETECTION TEST HTR 148A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-148B ST LEAK DETECTION TEST HTR 148B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-148C ST LEAK DETECTION TEST HTR 148C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-148D ST LEAK DETECTION TEST HTR 148D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-149A ST LEAK DETECTION TEST HTR 149A HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-149B ST LEAK DETECTION TEST HTR 149B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-149C ST LEAK DETECTION TEST HTR 149C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-149D ST LEAK DETECTION TEST HTR 149D HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-150A ST LEAK DETECTION TEST HTR 150A HTR 100 W N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 94 of 169 FIRE ZONE: 12C FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections MS-HTR-150B ST LEAK DETECTION TEST HTR 150B HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-150C ST LEAK DETECTION TEST HTR 150C HTR 100 W N/A 1 Less than 5 horsepower MS-HTR-150D ST LEAK DETECTION TEST HTR 150D HTR 100 W N/A 1 Less than 5 horsepower TG-VRG-MAIN MN GEN VRG PNL 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 95 of 169 FIRE ZONE: 12D FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-TJN TU GEN BLDG JIB CRN HOIST N/A 1 Infrequent Use/Overcurrent Protection CO2-XFMR-HEX CO2 HEX VAP XFMR XFMR 0.1 kVA N/A 1 Less than 45 kVA EE-MCC-A MCC-A MCC 15 7 EE-MCC-F MCC-F MCC 15 8 EE-PNL-LPTG5 LP LPTG5 PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG6 LP LPTG6 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-SLDT2 ST LEAK DETECTION TEST PNL NU 2 PNL 120 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPTG6 XFMR F/ LP LPTG6 XFMR 30 kVA N/A 1 Less than 45 kVA HV-FAN- EF-T-1E TB EXH FAN FAN 26 1 OWC-RACK-P100 HYDROGEN INJECTION MODULE PNL 15 1 Non-ventilated - Robustly Secured OWC-RACK-P200 OXYGEN/AIR INJECTION MODULE PNL 15 1 Non-ventilated - Robustly Secured CONDENSATE OXYGEN INJECTION OWC-RACK-P600 PNL 15 1 Non-ventilated - Robustly Secured MODULE PW-HTR-TGA TB BATHROOM HW HTR HTR <5 hp N/A 1 Less than 5 horsepower TEC-MOT-CATA MOT F/ TEC CHEM ADD TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower TEC-P-CM TEC CHEM M P PMP 1/3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 96 of 169 FIRE ZONE: 12E FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LO-FAN-ARVE AUX LO RESVR EXTRAC FAN FAN 26 1 LO-FAN-RVE LO RESVR VAP EXTRAC FAN 5 hp 26 1 LO-P-EB EMERG DC BRG OIL P PMP 60 hp 21 1 LO-P-HPB HI PRESS OIL BACKUP P PMP 25 hp 21 1 LO-P-MBL MN BRG LIFT OIL P PMP 40 hp 21 1 LO-P-TG TGR OIL P PMP 60 hp 21 1 LO-TK-R TU LO RESVR TNK N/A 1 T/G OIL TURB OIL 35 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 97 of 169 FIRE ZONE: 12F FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 98 of 169 FIRE ZONE: 13A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-TG TB CRN HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-TJ TG BLDG JIB CRN (BLDG-HST-TJ) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-PNL-IC NQOB SQ D BRKR PNL PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG10 LP LPTG10 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG11 LP LPTG11 PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG12 LP LPTG12 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG9 LP LPTG9 PNL 480 VAC 15 1 Non-ventilated EE-XFMR-IC SQ D XFMR 45T3H 45KVA 3PH XFMR 45 kVA 23b 1 EE-XFMR-LPTG10 XFMR F/ LP LPTG10 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPTG12 XFMR F/ LP LPTG12 XFMR 15 kVA N/A 1 Less than 45 kVA HPI-CS-TG2 CAMERA CONN POINT TG2 PNL 15 1 Non-ventilated - Not Secured HV-ACU- AC-T-1A I&C SHOP ACU CONDENSING UNIT ACU 26 1 HV-FAN- AC-T-1A AOSC HEPA C F BOOSTER FAN FAN 26 1 HV-FAN- RF-T-1A TG GEN AREA RECIRC. FAN FAN 26 1 HV-FAN- RF-T-1B TG GEN AREA RECIRC. FAN FAN 26 1 AOSC I&C SHOP HVAC PROG CONTROL HV-PNL- AC-T-1A PNL 15 1 Non-ventilated - Not Secured PNL LO-P-BL1 NU 1 BRG LIFT P PMP 3 hp N/A 1 Less than 5 horsepower LO-P-BL2 NU 2 BRG LIFT P PMP 3 hp N/A 1 Less than 5 horsepower LO-P-SD SHAFT DR LO P PMP 21 1 LRP-PNL-T MS-MI-A CONTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-PNL-TDT1 PP TDT1 480 V 400 A 3PH PNL 480 VAC - Ventilated 15 1 LRP-PNL-TDT2 PP TDT2 480 V 400 A 3PH PNL 480 VAC - Ventilated 15 1 LRP-PNL-U MS-MI-B CONTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-PNL-V MS-MI-C CONTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-PNL-W MS-MI-D CONTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-PNL-X MS-MI-A, B, C, D CNTR PNL PNL 120 VAC 15 1 Non-ventilated - Robustly Secured LRP-RACK- LIR-HV-T-A TB HV UNIT 1-HV-T-1A LIR PNL 15 1 Non-ventilated - Not Secured LRP-RACK- LIR-HV-T-B TB HV UNIT 1-HV-T-1B LIR PNL 15 1 Non-ventilated - Not Secured LRP-RACK-IRC TB LOC INSTR RACK 1C PNL 15 3 Ventilated- Not Robust COND A VAC SW LOC RACK CH 1)LR-LRP-RACK-LR131A PNL 15 1 Non-ventilated - Not Secured 131A COND B VAC SW LOC RACK CH B LR-LRP-RACK-LR131B PNL 15 1 Non-ventilated - Not Secured 131B LRP-RACK-TGTI MN TU DR TEMP LOC RACK PNL 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 99 of 169 FIRE ZONE: 13A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections TB STOP MS-AOV-SVBP1 NU 1 STOP V BYPASS EQUAL 21 1 VLV TB STOP MS-AOV-SVBP2 NU 2 STOP V BYPASS EQUAL 21 1 VLV TG-EPA-GD MN TG CU BRAID GRD DEVICE PNL Ventilated 15 1 TG-EXC-MAIN MN EXC T/G EXC 33 1 TGF-P-A DEH FLUID P A PMP 30 hp 21 1 TGF-P-B DEH FLUID P B PMP 30 hp 21 1 TGF-P-T DEH FLUID XFER P PMP 3/4 hp N/A 1 Less than 5 horsepower TG-GEN-MN GEN GEN N/A 1 Addressed by T/G Oil & Hydrogen MAIN(TURBINE)

TGI SUPERVISORY INSTRUMENT TGI-PNL-1 PNL Ventilated 15 1 CABINET TG-XFMR-TG TGR MOT CUR XFMR XFMR <45 kVA N/A 1 Less than 45 kVA T/G OIL TURB OIL 35 1 T/G HYDROGEN GEN H2 34 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 100 of 169 FIRE ZONE: 13B FIRE COMPARTMENT: NCS No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ANN-MUX-03 ANN MUX 03 PNL 125 VDC N/A 1 Included in ANN-MUX-B ANN-MUX-04 ANN MUX 04 PNL 125 VDC N/A 1 Included in ANN-MUX-B ANNUNCIATOR MULTIPLEXER CABINET ANN-MUX-B PNL 125 VDC - Ventilated 15 1 P

NON CRIT SWGR RM A/C UNIT REMOTE EE-PNL- AC-T-1A PNL 15 1 Non-ventilated - Robustly Secured CP EE-PNL-AA1 125VDC PNL AA1 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-BB1 125VDC PNL BB1 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-SPTG1 MOT SPACE HTR PNL SPTG1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-SPTG2 MOT SPACE HTR PNL SPTG2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-SWGR-4160A 4160 V SWGR A SWGR 4160V 15 10 HEAF EE-SWGR-4160A 4160 V SWGR A SWGR 4160V 16b 10 HEAF EE-SWGR-4160B 4160 V SWGR B SWGR 4160V 15 10 HEAF EE-SWGR-4160B 4160 V SWGR B SWGR 4160V 16b 10 HEAF EE-SWGR-4160C 4160 V SWGR C SWGR 4160V 15 3 HEAF EE-SWGR-4160C 4160 V SWGR C SWGR 4160V 16b 3 HEAF EE-SWGR-4160D 4160 V SWGR D SWGR 4160V 15 3 HEAF EE-SWGR-4160D 4160 V SWGR D SWGR 4160V 16b 3 HEAF EE-SWGR-4160E 4160 V SWGR E SWGR 4160V 15 7 HEAF EE-SWGR-4160E 4160 V SWGR E SWGR 4160V 16b 7 HEAF EE-SWGR-480A 480V SWGR 1A SWGR 480V 15 3 HEAF EE-SWGR-480A 480V SWGR 1A SWGR 480V 16a 3 HEAF EE-SWGR-480B 480V SWGR 1B SWGR 480V 15 4 HEAF EE-SWGR-480B 480V SWGR 1B SWGR 480V 16a 4 HEAF EE-XFMR-480A 480VAC SWGR XFMR A XFMR 1500 kVA 23b 1 EE-XFMR-480B 480VAC SWGR XFMR B XFMR 1500 kVA 23b 1 EE-XFMR-SPTG1 XFMR F/ MOT SPACE HTR PNL SPTG1 XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-SPTG2 XFMR F/ MOT SPACE HTR PNL SPTG2 XFMR 15 kVA N/A 1 Less than 45 kVA HV-AC- AC-T-1A NON CRITICAL SWGR ROOM ACU AC < 5 hp N/A 1 Less than 5 horsepower BUS DUCT BUS 16b 38 HEAF BATTERY CHARGER/RECTIFIER (5.3ALT CHG 10 1 STRATEGY)

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 101 of 169 FIRE ZONE: 13C FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FAN-AHU5 ELEC SHOP AH FAN FAN 26 1 WALL MOUNTED TRANSFORMER XFMR <45 KVA N/A 1 Less than 45 kVA

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 102 of 169 FIRE ZONE: 13D FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-ISP1 INST SHOP PNL ISP1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 103 of 169 FIRE ZONE: 14A FIRE COMPARTMENT: DG-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C4A NU 1 D-G HST C4 (BLDG-HST-C4A) HOIST N/A 1 Infrequent Use/Overcurrent Protection DG-D-1 DG D ENG NU 1 DG 8 1 DGDO-P-EDF1 ENG DR FUEL P 1 PMP N/A 1 Included as part of Diesel Generator DGDO-P-FB1 FUEL BOOSTER P 1 PMP 2 hp N/A 1 Less than 5 horsepower DG-GEN-DG1 DG1 GEN GEN N/A 1 Included as part of Diesel Generator DGJW-HTR-JWH1 DG1 JACKET WTR HTR HTR N/A 1 Included as part of Diesel Generator DGJW-P-EDJW1 DG1 ENG DR JW P PMP N/A 1 Included as part of Diesel Generator DGJW-P-JWB1 DG1 JW BYPASS P PMP N/A 1 Included as part of Diesel Generator DGLO-HTR-LOH1 DG1 LO HTR HTR N/A 1 Included as part of Diesel Generator DGLO-P-BP1 DG1 LO BYPASS P PMP 2 hp N/A 1 Included as part of Diesel Generator DGLO-P-EDLO1 DG1 ENG DR LO P PMP N/A 1 Included as part of Diesel Generator DGLO-P-PPLO1 DG1 PREPOST LO P PMP 10 hp 21 1 DG-PNL-DG1 ECP DG1 ENG CONTR PNL PNL Ventilated 15 1 DG-REL-DG1 DG1 RELAY PANEL PNL 125 VDC - Ventilated 15 2 DGSA-CHG-DG1 AIR CPSR DG1A BAT CHGR CHG N/A 1 Included as part of Diesel Generator DGSA-CPSR-1A STRT AIR CPSR 1A CPSR N/A 1 Included as part of Diesel Generator DGSA-CPSR-1B STRT AIR CPSR 1B CPSR N/A 1 Included as part of Diesel Generator DGSA-D-SAC1A STRT AIR CPSR 1A D ENG ENG N/A 1 Included as part of Diesel Generator DG-TGR-DG1 DG 1 TGR TURB N/A 1 Included as part of Diesel Generator DG-VRG-DG1 DG1 VRG VRG 4160V 15 1 HEAF DG-VRG-DG1 DG1 VRG VRG 4160V 16b 1 HEAF DG-XFMR-DG1 GND DG1 NEUT GRD XFMR XFMR <45 kVA N/A 1 Less than 45 kVA DG-XFMR-DG1 MVC DG1 MAN V CONTR XFMR 0.63 kVA N/A 1 Less than 45 kVA DG-XFMR-DG1 VARM DG1 LOC VARMETER PH SHIFT XFMR XFMR <45 kVA N/A 1 Less than 45 kVA DG-XFMR-WT6 DG1 WT XFMR <45 kVA N/A 1 Less than 45 kVA EE-MCC-DG1 MCC-DG1 MCC 15 4 EE-PNL-DG1 125VDC PNL DG1 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-LPDG1 LP LPDG1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-SWGR-4160DG1 4160 V SWGR DG1 SWGR 4160V 15 2 HEAF EE-SWGR-4160DG1 4160 V SWGR DG1 SWGR 4160V 16b 2 HEAF EE-XFMR-LPDG1 XFMR F/ LP LPDG1 XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-MCCDG1 3PH 4160-480Y/277 VAC PWR XFMR XFMR 250 kV 23b 1 FDN-P-DG1 SUMP P DG-1 PMP 3 hp N/A 1 Less than 5 horsepower HV-FAN- EF-DG-1A EXH FAN F/ D GEN RM 1 FAN 30 hp 26 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 104 of 169 FIRE ZONE: 14A FIRE COMPARTMENT: DG-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FCU- HV-DG-1A DG UNIT 1 VENT UNIT FCU 5 hp 26 1 HV-FCU- HV-DG-1C DG UNIT 1 VENT UNIT FCU 20 hp 26 1 HV-P- CTP-DG-1A HV-DG-1A CT CIRC P PMP 21 1 LRP-PNL- LCP-HV-DG-DG BLDG HV LOC CONTR PNL HV-DG-1A PNL 15 1 Non-ventilated - Robustly Secured 1A LRP-PNL- LCP-HV-DG-DG 1 BLDG HV LOC CONTR PNL PNL 15 1 Non-ventilated - Robustly Secured 2A LRP-RACK- LIR-HV-DG-DG BLDG HV UNIT LIR PNL Instrument Rack N/A 1 Not considered ignition source A

LRP-RACK- LIR-HV-DG-DG BLDG HV UNIT LP-1-HV-DG-1C LIR PNL Instrument Rack N/A 1 Not considered ignition source C

LRP-RACK-LR107A DO SYS LOC PNL 107A PNL 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 105 of 169 FIRE ZONE: 14B FIRE COMPARTMENT: DG-B No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C4B NU 2 D-G HST C4 (BLDG-HST-C4B) HOIST N/A 1 Infrequent Use/Overcurrent Protection DG-D-2 DG D ENG NU 2 DG 8 1 DGDO-P-EDF2 ENG DR FUEL P 2 PMP N/A 1 Included as part of Diesel Generator DGDO-P-FB2 FUEL BOOSTER P 2 PMP 2 hp N/A 1 Less than 5 horsepower DG-GEN-DG2 DG2 GEN GEN N/A 1 Included as part of Diesel Generator DGJW-HTR-JWH2 DG2 JACKET WTR HTR HTR N/A 1 Included as part of Diesel Generator DGJW-P-EDJW2 DG2 ENG DR JW P PMP N/A 1 Included as part of Diesel Generator DGJW-P-JWB2 DG2 JW BYPASS P PMP N/A 1 Included as part of Diesel Generator DGLO-HTR-LOH2 DG2 LO HTR HTR N/A 1 Included as part of Diesel Generator DGLO-P-BP2 DG2 LO BYPASS P PMP 2 hp N/A 1 Included as part of Diesel Generator DGLO-P-EDLO2 DG2 ENG DR LO P PMP N/A 1 Included as part of Diesel Generator DGLO-P-PPLO2 DG2 PREPOST LO P PMP 10 hp 21 1 DG-PNL-DG2 ECP DG2 ENG CONTR PNL PNL Ventilated 15 1 DG-REL-DG2 DG2 RELAY PANEL PNL 125 VDC - Ventilated 15 2 DGSA-CHG-DG2 AIR CPSR DG2A BAT CHGR CHG N/A 1 Included as part of Diesel Generator DGSA-CPSR-2A STRT AIR CPSR 2A CPSR N/A 1 Included as part of Diesel Generator DGSA-CPSR-2B STRT AIR CPSR 2B CPSR N/A 1 Included as part of Diesel Generator DGSA-D-SAC2A STRT AIR CPSR 2A D ENG ENG N/A 1 Included as part of Diesel Generator DG-TGR-DG2 DG 2 TGR TURB N/A 1 Included as part of Diesel Generator DG-VRG-DG2 DG2 VRG VRG 4160V 15 1 HEAF DG-VRG-DG2 DG2 VRG VRG 4160V 16b 1 HEAF DG-XFMR-DG2 GND DG2 NEUT GRD XFMR XFMR <45 kVA N/A 1 Less than 45 kVA DG-XFMR-DG2 MVC DG2 MAN V CONTR XFMR 0.63 kVA N/A 1 Less than 45 kVA DG-XFMR-DG2 VARM DG2 LOC VARMETER PH SHIFT XFMR XFMR <45 kVA N/A 1 Less than 45 kVA DG-XFMR-WT7 DG2 WT XFMR <45 kVA N/A 1 Less than 45 kVA EE-MCC-DG2 MCC-DG2 MCC 15 4 EE-PNL-DG2 125VDC PNL DG2 PNL 125 VDC 15 1 PRA Component - Non-ventilated EE-PNL-LPDG2 LP LPDG2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-SWGR-4160DG2 4160 V SWGR DG2 SWGR 4160V 15 2 HEAF EE-SWGR-4160DG2 4160 V SWGR DG2 SWGR 4160V 16b 2 HEAF EE-XFMR-LPDG2 XFMR F/ LP LPDG2 XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-MCCDG2 3PH 4160-480Y/277 VAC PWR XFMR XFMR 250 kV 23b 1 FDN-P-DG2 SUMP P DG-2 PMP 3 hp N/A 1 Less than 5 horsepower HV-FAN- EF-DG-1B EXH FAN F/ D GEN RM 2 FAN 30 hp 26 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 106 of 169 FIRE ZONE: 14B FIRE COMPARTMENT: DG-B No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FCU- HV-DG-1B DG UNIT 2 VENT UNIT FCU 5 hp 26 1 HV-FCU- HV-DG-1D DG UNIT 2 VENT UNIT FCU 20 hp 26 1 HV-P- CTP-DG-1B HV-DG-1B CT CIRC P PMP 21 1 LRP-PNL- LCP-HV-DG-DG BLDG HV LOC CONTR PNL HV-DG-1B PNL 15 1 Non-ventilated - Robustly Secured 1B LRP-PNL- LCP-HV-DG-DG HV LOC CONTR PNL LCP-HV-DG-2B PNL 15 1 Non-ventilated - Robustly Secured 2B LRP-RACK- LIR-HV-DG-DG BLDG HV UNIT LIR PNL Instrument Rack N/A 1 Not considered ignition source B

LRP-RACK- LIR-HV-DG-DG BLDG HV UNIT LP-1-DG-1D LIR PNL Instrument Rack N/A 1 Not considered ignition source D

LRP-RACK-LR107B DO SYS LOC PNL 107B PNL 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 107 of 169 FIRE ZONE: 14C FIRE COMPARTMENT: DG-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections DGDO-TK-DOD1 DO DAY TK 1 TNK N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 108 of 169 FIRE ZONE: 14D FIRE COMPARTMENT: DG-B No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections DGDO-TK-DOD2 DO DAY TK 2 TNK N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 109 of 169 FIRE ZONE: 15 FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections AC-AG-1C ASB C CHEM ADDITION TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower AC-AG-1D ASB D CHEM ADDITION TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower ACD-P- CP-BR-A1 AUX COND P A1 PMP 5 hp 21 1 ACD-P- CP-BR-A2 AUX COND P A2 PMP 5 hp 21 1 BOILER BLOWDOWN TRANSFER PUMP ACD-P-BTP1A PMP 1-1/2 hp N/A 1 Less than 5 horsepower 1A BOILER BLOWDOWN TRANSFER PUMP ACD-P-BTP1B PMP 1-1/2 hp N/A 1 Less than 5 horsepower 1B ACD-XFMR-BBT BLR BD XFER CONTR PWR XFMR XFMR 0.15 kVA N/A 1 Less than 45 kVA AC-P-CC BLR C CIRC P PMP 15 hp 21 1 AC-P-CD BLR D CIRC P PMP 15 hp 21 1 AC-P-CFA CHEM ADDITION P 1A PMP 1/4 hp N/A 1 Less than 5 horsepower AC-P-CFB CHEM ADDITION P 1B PMP 1/2 hp N/A 1 Less than 5 horsepower AC-P-CFC ELECTROLYTE P TO BLR 1C PMP 1/3 hp N/A 1 Less than 5 horsepower AC-P-CFD ELECTROLYTE P TO BLR 1D PMP 1/3 hp N/A 1 Less than 5 horsepower AC-P-CFE CHEM ADDITION P 1E PMP 1/2 hp N/A 1 Less than 5 horsepower AC-P-FWA BF P A PMP 40 hp 21 1 AC-P-FWB BF P B PMP 40 hp 21 1 ASB-B-1C ASB C BOILER 30 1 ASB-B-1D ASB D BOILER 30 1 ASB-HTR-1C ASB C STANDBY HTR HTR 40 hp 26 1 ASB-HTR-1D ASB D STANDBY HTR HTR 40 hp 26 1 ASB-XFMR-C ASB C 24 VDC SUPPLY PWR XFMR XFMR <45 kVA N/A 1 Less than 45 kVA ASB-XFMR-D ASB D 24 VDC SUPPLY PWR XFMR XFMR <45 kVA N/A 1 Less than 45 kVA EE-PNL-ASB1 PP ASB1 PNL 15 1 Non-ventilated - Not Secured EE-STR- FWP-BR-A STR F/ HTG BF P FWP-BR-A PNL 480 VAC 15 1 Non-ventilated EE-STR- FWP-BR-B STR F/ HTG BF P FWP-BR-B PNL 480 VAC 15 1 Non-ventilated EE-STR- P-BR-A STR F/ HTG BLR FO P P-BR-A PNL 480 VAC 15 1 Non-ventilated EE-STR- P-BR-B STR F/ HTG BLR FO P P-BR-B PNL 480 VAC 15 1 Non-ventilated EE-XFMR-ASB1 XFMR F/ PP ASB1 XFMR 30 kVA N/A 1 Less than 45 kVA FP-PNL-DG DG RM FIRE ALM CNTL PNL PNL 120 VAC 15 1 Non-ventilated - Not Secured HV-MOT- UH-BR-1A BLR RM UNIT HTR MOT MOT 1/2 hp N/A 1 Less than 5 horsepower HV-MOT- UH-BR-1B BLR RM UNIT HTR MOT MOT 1/2 hp N/A 1 Less than 5 horsepower LRP-PNL-BBT BLR BD XFER CONTR PNL PNL 480 VAC 15 1 Non-ventilated TEC-P-BP FDEM-A BOOSTER P 903' PMP 1-1/2 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 110 of 169 FIRE ZONE: 15 FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections TEC-P-DA TEC DEAERATOR VACUUM PUMP PMP 1 hp N/A 1 Less than 5 horsepower TEC DEAERATOR SKID LOCAL CNTL TEC-PNL-DA PNL 15 1 Non-ventilated - Robustly Secured PANEL STR F/ TEC BOOSTER P MOT TEC-MOT-TEC-STR-DEM PNL 600 VAC 15 1 Non-ventilated BP

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 111 of 169 FIRE ZONE: 16 FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LRP-RACK- LIR-HV-TG- TG BLDG EXH FAN LOC INSTR RACK HV-PNL Instrument Rack N/A 1 Not considered ignition source EF TG-EF EE-STR- EF-T-1A MAG STR F/ EXH FAN EF-T-1A PNL 460 VAC 15 1 Non-ventilated EE-STR- EF-T-1B MAG STR F/ EXH FAN EF-T-1B PNL 460 VAC 15 1 Non-ventilated EE-STR- EF-T-1C MAG STR F/ EXH FAN EF-T-1C PNL 460 VAC 15 1 Non-ventilated EE-STR- EF-T-1D MAG STR F/ EXH FAN EF-T-1D PNL 460 VAC 15 1 Non-ventilated HV-AC- CPU-20A TB NORMAL RANGE KAMAN ACU AC < 5 hp N/A 1 Less than 5 horsepower HV-AC- CPU-20B TB HIGH RANGE KAMAN ACU AC < 5 hp N/A 1 Less than 5 horsepower HV-FAN- EF-T-1A TB EXH FAN FAN 75 hp 26 1 HV-FAN- EF-T-1B TB EXH FAN FAN 75 hp 26 1 HV-FAN- EF-T-1C TB EXH FAN FAN 75 hp 26 1 HV-FAN- EF-T-1D TB EXH FAN FAN 75 hp 26 1 RMV-P-20 TB VENT NMC SAMPLE P PMP <5 hp N/A 1 Less than 5 horsepower RMV-P-20A TB NORM RANGE SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMV-P-20B TB HI RANGE SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMV-P-20C TB AUX P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMV-RM-5 TB EXHAUST SAMPLER PNL 115 VAC - Ventilated 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 112 of 169 FIRE ZONE: 17 FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H1 WT ELEC HST H1 (BLDG-HST-H1) HOIST N/A 1 Infrequent Use/Overcurrent Protection DW-P-A DW XFER P A PMP 40 hp 21 1 DW-P-B DW XFER P B PMP 40 hp 21 1 EE-MCC-E MCC-E MCC 15 8 EE-PNL-LPTG13 LP LPTG13 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPTG1 PP PPTG1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured 480-208/120 VAC EE-PNL-PPWT1 PP FOR BRE #6 PNL 15 1 Ventilated EE-XFMR-LPTG13 XFMR F/ LP LPTG13 XFMR 45 kVA 23b 1 EE-XFMR-PPTG1 XFMR F/ PP PPTG1 XFMR 15 kVA N/A 1 Less than 45 kVA HV-MOT- UH-WT-1A WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1B WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1C WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1D WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1E WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1F WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower HV-MOT- UH-WT-1G WT AREA UNIT HTR MOT MOT 1/3 hp N/A 1 Less than 5 horsepower PW-P-A PW P A PMP 10 hp 21 1 PW-P-B PW P B PMP 10 hp 21 1 WT-HTR-NS NEUT SKID HTR HTR <5 hp N/A 1 Less than 5 horsepower WT-XFMR-NSDP NEUT SKID XFMR & DISTR PNL XFMR 15 kVA N/A 1 Less than 45 kVA XFMR FOR MCC-E ON ELEVATION 923'-0" XFMR 15 kVA N/A 1 Less than 45 kVA

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 113 of 169 FIRE ZONE: 18A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C3 MACH SHOP CRN C3 (BLDG-HST-C3) HOIST N/A 1 Infrequent Use/Overcurrent Protection MACH SHOP ELEC HST H3 (BLDG-HST-BLDG-HST-H3 HOIST N/A 1 Infrequent Use/Overcurrent Protection H3)

EE-MCC-MSA SWBD MSA PNL 480 VAC 15 1 Non-ventilated - HEAF EE-MCC-MSA SWBD MSA PNL 480 VAC 16a 1 HEAF EE-MCC-MSB SWBD MSB PNL 480 VAC 15 1 Non-ventilated - HEAF EE-MCC-MSB SWBD MSB PNL 480 VAC 16a 1 HEAF EE-PNL-LOPSB LP LOPS-B PNL 480 VAC 15 1 Non-ventilated EE-PNL-LPTG14 LP LPTG14 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG15 LP LPTG15 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG16 LP LPTG16 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG17 LP LPTG17 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTG18 LP PNL 120/240 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPMS PP PPMS PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPTG16 PP PPTG16 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STRR-CCL MACH SHOP RACK CCL PNL 15 1 Non-ventilated - Robustly Secured EE-STRR-MSC MACH SHOP RACK MSC PNL 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPTG14 XFMR F/ LTG PNL LPTG14 & LPTG15 XFMR 75 kVA 23b 1 EE-XFMR-LPTG18 XFMR F/ EE-PNL-LPTG18 XFMR 25 kVA N/A 1 Less than 45 kVA EE-XFMR-PPMS XFMR F/ PNL PPMS XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-PPTG16 XFMR F/ PP PPTG16 XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-PPTG16 XFMR FOR POWER PNL PPTG16 XFMR 15 kVA N/A 1 Less than 45 kVA HV-AC- AC-CCL-1A AIR COND UNIT F/ MAINT LUNCH RM AC < 5 hp N/A 1 Less than 5 horsepower HV-FAN- AC-CCL-1A COLD CHEMISTRY LAB ACU SF FAN 26 1 HV-FAN- EF-MS-1C OIL STORAGE RM EXH FAN FAN 26 1 HV-FAN- EF-MS-1D PAINT STORAGE RM EXH FAN FAN 26 1 HV-FAN- EF-MS-1E TOILET & LOCKER RM EXH FAN FAN 26 1 HV-FAN- EF-MS-1F GRIT BLAST BOOTH EXH & DUST COLL FAN 26 1 HV-FAN- EF-MS-1G GRINDING COMBINED EXH & DUST COLL FAN 26 1 HV-FAN- EF-MS-1J TOOL CRIB EXH FAN FAN 26 1 HV-HTR-MSWELD WELD SHOP ELECTRIC UNIT HEATER HTR <5 hp N/A 1 Less than 5 horsepower HV-MOT- UH-M-1A MACH SHOP UNIT HTR UH-M-1A MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-M-1B MACH SHOP UNIT HTR UH-M-1B MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-M-1C MACH SHOP UNIT HTR UH-M-1C MOT MOT 1/4 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 114 of 169 FIRE ZONE: 18A FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-MOT- UH-M-1D MACH SHOP UNIT HTR UH-M-1D MOT MOT 1/4 hp N/A 1 Less than 5 horsepower MACH SHOP PAINT RM UNIT HTR UH-M-HV-MOT- UH-M-1E MOT 1/3 hp N/A 1 Less than 5 horsepower 1E MOT LRP-PNL- LCP-HV-MS MACH SHOP HV LOC CONTR PNL HV-MS PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK- LIR-HV-MS-MACH SHOP HV UNIT 1-HV-MS-1A LIR PNL Instrument Rack N/A 1 Not considered ignition source A

PW-HTR-MS2 MACHINE SHOP WATER HEATER HTR <5 hp N/A 1 Less than 5 horsepower CLOTH CLOTHES DRYER 13 1 DRY

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 115 of 169 FIRE ZONE: 18B FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections MACH SHOP TOOL RM UNIT HTR UH-M-HV-MOT- UH-M-1F MOT 1/5 hp N/A 1 Less than 5 horsepower 1F MOT

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 116 of 169 FIRE ZONE: 18C FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 117 of 169 FIRE ZONE: 18D FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-XFMR-CCL XFMR F/ COLD CHEM LAB RACK CCL XFMR 3 kVA N/A 1 Less than 45 kVA

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 118 of 169 FIRE ZONE: 18E FIRE COMPARTMENT: TB-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 119 of 169 FIRE ZONE: 19A FIRE COMPARTMENT: OB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CP-RW-1A PUMP MOTOR PMP 1-1/2 hp N/A 1 Less than 5 horsepower CP-RW-1B PUMP MOTOR PMP 1-1/2 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 120 of 169 FIRE ZONE: 19B FIRE COMPARTMENT: OB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LO BACKGROUND COUNTING RM PNL EE-PNL-LBCRP1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured LBCRP1 EE-PNL-LPOB1 LP PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPOB2 LP LPOB2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPOB2A LP LPOB2A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPOB2B LP LPOB2B PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPOB3A LP LPOB3A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPOB3B LP LPOB3B PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPTSC LP LPTSC PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPOB2 XFMR F/ PNL LPOB2 & LBCRP1 XFMR 45 kVA 23b 1 EE-XFMR-LTOB1 XFMR F/ LP LPOB1 XFMR 45 kVA 23b 1 EE-XFMR-LTOB2 XFMR F/ PNL LPOB2A & LPOB2B XFMR 75 kVA 23b 1 EE-XFMR-LTOB3 XFMR F/ PNL LPOB3A & LPOB3B XFMR 112.5 kVA 23b 1 EE-XFMR-LTTSC XFMR F/ LP LPTSC XFMR 45 kVA 23b 1 LO BACKGROUND COUNTING RM ACU HV-FAN- AC-LBCR-1 FAN 26 1 SF HV-FAN- EF-3 TSC TOILET EXH FAN EF-3 FAN 26 1 HV-FAN- EF-4 TSC TOILET EXH FAN EF-4 FAN 26 1 HV-FAN- EF-5 TSC CONF RM EXH FAN EF-5 FAN 26 1 HV-FCU- AC-LBCR-1 LO BACKGROUND COUNTING RM ACU FCU 26 1 HV-FCU- AHU-2 TSC AH UNIT, AHU-2 FCU 26 1 HV-FCU- HV-FO-32 OFFICE BLDG FAN PWR UNIT VF-4E FCU 26 1 HV-FCU- HV-OF-1 OFFICE BLDG F PWR UNIT VF-3A FCU 26 1 HV-FCU- HV-OF-10 OFFICE BLDG F PWR UNIT VF-2B FCU 26 1 HV-FCU- HV-OF-11 TSC BYPASS UNIT BP-1A FCU 26 1 HV-FCU- HV-OF-12 TSC BYPASS UNIT BP-1B FCU 26 1 HV-FCU- HV-OF-13 OFFICE BLDG F PWR UNIT VF-4A FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-14 FCU 26 1 VB-3B OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-15 FCU 26 1 VB-4B HV-FCU- HV-OF-16 OFFICE BLDG F PWR UNIT VF-2C FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-17 FCU 26 1 VB-5B OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-18 FCU 26 1 VB-4C HV-FCU- HV-OF-19 OFFICE BLDG F PWR UNIT VF-4B FCU 26 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 121 of 169 FIRE ZONE: 19B FIRE COMPARTMENT: OB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-2 FCU 26 1 VB-2A HV-FCU- HV-OF-20 OFFICE BLDG FAN PWR UNIT VF-4C FCU 26 1 HV-FCU- HV-OF-21 OFFICE BLDG FAN PWR UNIT VF-1B FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-22 FCU 26 1 VB-2C OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-23 FCU 26 1 VB-3C HV-FCU- HV-OF-24 OFFICE BLDG FAN PWR UNIT VF-2D FCU 26 1 HV-FCU- HV-OF-25 OFFICE BLDG FAN PWR UNIT VF-1D FCU 26 1 HV-FCU- HV-OF-26 OFFICE BLDG FAN PWR UNIT VF-3B FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-27 FCU 26 1 VB-1B OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-28 FCU 26 1 VB-4D HV-FCU- HV-OF-29 OFFICE BLDG FAN PWR UNIT VF-4F FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-3 FCU 26 1 VB-3A HV-FCU- HV-OF-30 OFFICE BLDG FAN PWR UNIT VF-3C FCU 26 1 HV-FCU- HV-OF-31 OFFICE BLDG FAN PWR UNIT VF-2I FCU 26 1 HV-FCU- HV-OF-32 OFFICE BLDG FAN PWR UNIT VF-4E FCU 26 1 HV-FCU- HV-OF-33 OFFICE BLDG FAN PWR UNIT VF-4D FCU 26 1 HV-FCU- HV-OF-34 OFFICE BLDG FAN PWR UNIT VF-2E FCU 26 1 HV-FCU- HV-OF-35 OFFICE BLDG FAN PWR UNIT VF-2F FCU 26 1 HV-FCU- HV-OF-36 OFFICE BLDG FAN PWR UNIT FCU 26 1 HV-FCU- HV-OF-37 OFFICE BLDG FAN PWR UNIT VF-1F FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-38 FCU 26 1 VB-3D HV-FCU- HV-OF-39 OFFICE BLDG FAN PWR UNIT VF-1E FCU 26 1 HV-FCU- HV-OF-4 OFFICE BLDG F PWR UNIT VF-1A FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-40 FCU 26 1 VB-1C HV-FCU- HV-OF-41 OFFICE BLDG FAN PWR UNIT VF-2H FCU 26 1 HV-FCU- HV-OF-42 OFFICE BLDG FAN PWR UNIT VF-26 FCU 26 1 OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-5 FCU 26 1 VB-4A OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-6 FCU 26 1 VB-1A OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-7 FCU 26 1 VB-5A

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 122 of 169 FIRE ZONE: 19B FIRE COMPARTMENT: OB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections OF BLDG ONE DUCT THROTTLING UNIT HV-FCU- HV-OF-8 FCU 26 1 VB-2B HV-FCU- HV-OF-9 OFFICE BLDG F PWR UNIT VF-2A FCU 26 1 HV-HTR- CUH-OF-1 OFFICE BLDG 903' CABINET UH CUH-1 HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- CUH-OF-2 OFFICE BLDG 903' CABINET UH CUH-2 HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EHC-1 ELEC DUCT HTR F/ AHU-1 HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EHC-2 TSC AHU-W ELEC HEAT COIL HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EHC-3 ELEC DUCT HTR F/ AHU-2 HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EHC-4 OFFICE BLDG AHU-1 ELEC HEAT COIL HTR <5 hp N/A 1 Less than 5 horsepower HV-HTR- EUH-1 OFFICE BLDG PENTHOUSE EUH, UH-1 HTR <5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 123 of 169 FIRE ZONE: 19C FIRE COMPARTMENT: OB No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-MCC-OB MCC MCC-OB MCC 15 3 EE-MCC-TSC MCC-TSC MCC 15 1 EE-PNL-LPOBP LP LPOBP PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-OBFP OFFICE BLDG MN BRKR PNL 480 VAC 15 1 EE-PNL-OBSM OFFICE BLDG SWBD OBSM PNL 480 VAC 15 2 EE-XFMR-LTOBP XFMR F/ LP LPOBP XFMR 9 kVA N/A 1 Less than 45 kVA HV-CH- CH-1 OFFICE BLDG CH CH-1 CHLR 7-1/2 hp 26 1 HV-CH- CH-2 OFFICE BLDG CH CH-2 CHLR 7-1/2 hp 26 1 HV-CPSR-OF HV PNEU CONTR AIR CPSR CPSR 9 1 HV-FAN- OAF-1 TSC SF OAF-1 FAN 3/4 hp N/A 1 Less than 5 horsepower HV-FAN- OAF-2 TSC EMERG SF OAF-2 FAN 3/4 hp N/A 1 Less than 5 horsepower HV-FCU- AHU-1 OFFICE BLDG AH UNIT, AHU-1 FCU 40 hp 26 1 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-1 PMP 7-1/2 hp 21 1 CWP-1 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-2 PMP 7-1/2 hp 21 1 CWP-2 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-3 PMP 3 hp N/A 1 Less than 5 horsepower CWP-3 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-4 PMP 3 hp N/A 1 Less than 5 horsepower CWP-4 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-5 PMP 3 hp N/A 1 Less than 5 horsepower CWP-5 OFFICE BLDG CHILLED WTR CIRC P HV-P- CWP-6 PMP 3 hp N/A 1 Less than 5 horsepower CWP-6

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 124 of 169 FIRE ZONE: 20A FIRE COMPARTMENT: IS-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACD-P- CP-IS-A1 COND DUPLEX PUMP A1 PMP 3/4 hp N/A 1 Less than 5 horsepower ACD-P- CP-IS-A2 COND DUPLEX PUMP A2 PMP 3/4 hp N/A 1 Less than 5 horsepower EE-PNL-DPISA DISTR PNL DPIS-A PNL 120/240 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-DPISB DISTR PNL DPIS-B PNL 120/240 VAC 15 1 Non-ventilated - Robustly Secured EE-STR-LZ 2128MV STR F/ SW-2128MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-STRR-LZ INTK STRR LZ PNL 15 1 PRA Component - Non-ventilated EE-STRR-TZ INTK STRR TZ PNL 15 1 PRA Component - Non-ventilated EE-STR-S191 SWP A & C STNR S191 CONTR PNL PNL 460 VAC 15 1 Non-ventilated EE-STR-S192 SWP B & D STNR S192 CONTR PNL PNL 460 VAC 15 1 Non-ventilated EE-STR-TZ 2129MV STR F/ SW-2129MV PNL 480 VAC 15 1 PRA Component - Non-ventilated EE-XFMR-DPISA XFMR F/ PNL DPIS-A XFMR 3 kVA N/A 1 Less than 45 kVA EE-XFMR-DPISB XFMR F/ PNL DPIS-B XFMR 3 kVA N/A 1 Less than 45 kVA FP-P-C FP P C PMP 250 hp 21 1 FP-PNL-C SYLVANIA C PNL F/ FP P C PNL 480 VAC 15 1 Non-ventilated HV-FCU- HV-IS-1A INTK SWP RM HV UNIT FCU 26 1 HV-FCU- HV-IS-1B INTK SWP RM HV UNIT FCU 26 1 LRP-PNL-S191 SW P A & C STNR S191 CONTR PNL PNL 460 VAC 15 1 Non-ventilated LRP-PNL-S192 SW P B&D STNR S192 CONTR PNL PNL 460 VAC 15 1 Non-ventilated LRP-PNL-SWGPA SW GLAND WTR SUPPLY CONTR PNL A PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-SWGPB SW GLAND WTR SUPPLY CONTR PNL B PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-SWPR E BAY SONAR PANEL PNL 15 1 Non-ventilated - Not Secured SW-P-A SWP A PMP N/A 1 Pump Removed SW-P-B SWP B PMP 21 1 SW-P-C SWP C PMP 21 1 SW-P-D SWP D PMP 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 125 of 169 FIRE ZONE: 20B FIRE COMPARTMENT: IS-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections ACD-P- CP-IS-B1 COND DUPLEX PUMP B1 PMP 3/4 hp N/A 1 Less than 5 horsepower ACD-P- CP-IS-B2 COND DUPLEX PUMP B2 PMP 3/4 hp N/A 1 Less than 5 horsepower ANN-AC-Q ANN MUX CABINET Q AC AC 115V N/A 1 Not considered ignition source ANN-MUX-Q ANN MUX CABINET Q PNL 125 VDC 15 1 Non-ventilated - Robustly Secured BLDG-HST-H15 INTK OUTSIDE HST H15 (BLDG-HST-H15) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-IS 35/5 TN WHITING INTK CRN BLDG-HST-IS HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-MOT-E1 E BAY SONAR MOTOR MOT <5 hp N/A 1 Less than 5 horsepower BLDG-P- RAKE-HYD TRASH RAKE HYD PUMP PMP 2 hp N/A 1 Less than 5 horsepower BLDG-PNL- RAKE-TRASH RAKE CONTROL PANEL PNL 460 VAC 15 1 Non-ventilated CNTRL BLDG-PNL- RAKE-TRASH RAKE MAIN DISCONNECT PANEL PNL 460 VAC 15 1 Non-ventilated DISCONNECT SCRN WSH P A&B DISCH STNR CBX CW-HTR-SCNPABM HTR <5 hp N/A 1 Less than 5 horsepower STRIP HTR CW-P-A CIRC WTR P A PMP 1750 hp - 53 gal oil 21 1 CW-P-B CIRC WTR P B PMP 1750 hp - 53 gal oil 21 1 CW-P-C CIRC WTR P C PMP 1750 hp - 53 gal oil 21 1 CW-P-D CIRC WTR P D PMP 1750 hp - 53 gal oil 21 1 CW-PNL-A1 TRAVEL SCREEN A1 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-A2 TRAVEL SCREEN A2 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-B1 TRAVEL SCREEN B1 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-B2 TRAVEL SCREEN B2 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-C1 TRAVEL SCREEN C1 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-C2 TRAVEL SCREEN C2 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-D1 TRAVEL SCREEN D1 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-D2 TRAVEL SCREEN D2 CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-PNL-E TRAVEL SCREEN E CONTROL PANEL PNL 480 VAC 15 1 Non-ventilated CW-P-SCNPA SCRN WSH P A PMP 250 hp 21 1 CW-P-SCNPB SCRN WSH P B PMP 250 hp 21 1 CW-P-SCNPC SCRN WSH P C PMP 350 hp 21 1 CW-P-SCNPD SCRN WSH P D PMP 350 hp 21 1 CW-SCN-A1 A1 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-A2 A2 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-B1 B1 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-B2 B2 TRAVELING WATER SCREEN MOT 5 hp 14 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 126 of 169 FIRE ZONE: 20B FIRE COMPARTMENT: IS-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CW-SCN-C1 C1 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-C2 C2 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-D1 D1 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-D2 D2 TRAVELING WATER SCREEN MOT 5 hp 14 1 CW-SCN-E E TRAVELING WATER SCREEN MOT 5 hp 14 1 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-A1 XFMR 250 VA N/A 1 Less than 45 kVA A1 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-A2 XFMR 250 VA N/A 1 Less than 45 kVA A2 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-B1 XFMR 250 VA N/A 1 Less than 45 kVA B1 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-B2 XFMR 250 VA N/A 1 Less than 45 kVA B2 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-C1 XFMR 250 VA N/A 1 Less than 45 kVA C1 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-C2 XFMR 250 VA N/A 1 Less than 45 kVA C2 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-D1 XFMR 250 VA N/A 1 Less than 45 kVA D1 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-D2 XFMR 250 VA N/A 1 Less than 45 kVA D2 CONTR PWR XFMR F/ TRAVELING SCRN CW-XFMR- SCN-E XFMR 250 VA N/A 1 Less than 45 kVA E

SCRN WSH P A B C & D CONTR PWR CW-XFMR-SCNP XFMR 2 kVA N/A 1 Less than 45 kVA XFMR SCRN WSH P A/B DISCH STNR CONTR CW-XFMR-SCNPABM XFMR 750 VA N/A 1 Less than 45 kVA PWR XFMR EE-MCC-Z MCC-Z MCC 15 7 EE-PNL-AA5 125VDC PNL AA5 PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPIS1 LP LPIS1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPIS2 SCRN BAY AREA LP LPIS2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-SPIS1 SPACE HTR PNL SPIS1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-STRR-ZA INTK STRR ZA PNL 15 1 Non-ventilated - Robustly Secured EE-STR-S181A SCRN WSH STNR S-181A CONTR PNL PNL 460 VAC 15 1 Non-ventilated EE-SWGR-480E 480V SWGR 1E SWGR 480V 15 3 HEAF EE-SWGR-480E 480V SWGR 1E SWGR 480V 16a 3 HEAF EE-XFMR-480E 480VAC SWGR XFMR E XFMR 750 kVA 23b 1 EE-XFMR-LPIS1 XFMR F/ LPIS1 & SPIS1 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPIS2 XFMR F/ LP LPIS2 XFMR 15 kVA N/A 1 Less than 45 kVA HV-MOT- UH-IS-1A INTK UNIT HTR UH-IS-1A MOT MOT 1/30 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 127 of 169 FIRE ZONE: 20B FIRE COMPARTMENT: IS-A No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-MOT- UH-IS-1B INTK UNIT HTR UH-IS-1B MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-IS-1C INTK UNIT HTR UH-IS-1C MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-IS-1D INTK UNIT HTR UH-IS-1D MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-IS-1E INTK UNIT HTR UH-IS-1E MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-IS-1F INTK UNIT HTR UH-IS-1F MOT MOT 1/4 hp N/A 1 Less than 5 horsepower HV-MOT- UH-IS-1G INTK UNIT HTR UH-IS-1B MOT MOT 1/4 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 128 of 169 FIRE ZONE: 21A FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections CF-BLWR-BW COND FDEM BACKWASH AIR BLWR BLWR 100 hp 14 1 CF-P-BW COND FDEM BACKWASH P PMP 60 hp 21 1 CM-P-REC COND RECIRC P PMP 75 hp 21 1 CM-P-RW RW BLDG AUX COND BOOSTER P PMP 60 hp 21 1 EE-MCC-P MCC-P MCC 15 13 EE-PNL-LPRW1 LP LPRW1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPSW1 XFMR F/ PNL LPSW-1 XFMR 7 kVA N/A 1 Less than 45 kVA LRP-PNL- 25-13 RW PNL 25-13 RACK 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-31 COND BACKWASH RCV TK RACK 25-31 RACK 15 1 Non-ventilated - Robustly Secured WASTE SLUDGE SPENT RESIN TK RACK LRP-PNL- 25-65 RACK 15 1 Non-ventilated - Robustly Secured 25-65 LRP-RACK-LR114 RW LAB DR SV RACK 114 RACK 15 1 Non-ventilated - Robustly Secured RW-AG-LDTA1A LAB DR TK 1A AG MOT < 5 hp N/A 1 Less than 5 horsepower RW-AG-LDTA1B LAB DR TK 1B AG MOT < 5 hp N/A 1 Less than 5 horsepower RW-AG-WASHCTA WASHDOWN COLL TK MX MOT < 5 hp N/A 1 Less than 5 horsepower RW-P-CBTP COND BACKWASH XFER P PMP 7-1/2 hp 21 1 RW-P-CPSDP COND PH SEP DECANT P PMP 15 hp 21 1 RW-P-CPSSP COND PH SEP SLUDGE P PMP 25 hp 21 1 RW-P-CWP CHEM WASTE P PMP 5 hp 21 1 RW-P-FDCP FL DR COLL P PMP 7-1/2 hp 21 1 RW-P-FDSP FL DR SAMPLE P PMP 7-1/2 hp 21 1 RW-P-H1 RW BLDG FL DR SUMP P H1 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-H2 RW BLDG FL DR SUMP P H2 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-J1 RW BLDG EQUIP DR SUMP P J1 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-J2 RW BLDG EQUIP DR SUMP P J2 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-K1 RW BLDG FL DR SUMP P K1 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-K2 RW BLDG FL DR SUMP P K2 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-LDP LAB DR P PMP 7-1/2 hp 21 1 RW-P-LUDP1A LAUNDRY DR P 1A PMP 7-1/2 hp 21 1 RW-P-LUDP1B LAUNDRY DR P 1B PMP 7-1/2 hp 21 1 RW-P-SRP SPENT RESIN P PMP 5 hp 21 1 RW-P-TST RW COLL SL TRFR P PMP 40 hp 21 1 RW-P-WASHCTP WASHDOWN COLL TK P PMP 5 hp 21 1 RW-P-WCP WASTE COLL P PMP 40 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 129 of 169 FIRE ZONE: 21A FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RW-P-WSLP WASTE SLUDGE P PMP 40 hp 21 1 RW-P-WSP1A WASTE SAMPLE P 1A PMP 30 hp 21 1 RW-P-WSP1B WASTE SAMPLE P 1B PMP 30 hp 21 1 RW-P-WSRP WASTE SURGE P PMP 40 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 130 of 169 FIRE ZONE: 21B FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-H19 RW DECON RM HST H19 BLDG-HST-H19 HOIST N/A 1 Infrequent Use/Overcurrent Protection CC-1 CONTROL CABINET CC-1 PNL 480V 15 1 HEAF CC-1 CONTROL CABINET CC-1 PNL 480V 16a 1 HEAF CF-AG-PT PRECOAT TK AG MOT 1/2 hp N/A 1 Less than 5 horsepower CF-P-HA COND FDEM HOLDING P A PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HB COND FDEM HOLDING P B PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HC COND FDEM HOLDING P C PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HD COND FDEM HOLDING P D PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HE COND FDEM HOLDING P E PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HF COND FDEM HOLDING P F PMP 3 hp N/A 1 Less than 5 horsepower CF-P-HG COND FDEM HOLDING P G PMP 3 hp N/A 1 Less than 5 horsepower CF-P-P COND FDEM PRECOAT P PMP 30 hp 21 1 EE-MCC-RX MCC-RX MCC 15 3 EE-PNL-CF COND FDEM CONTR PWR DIST PNL PNL Ventilated 15 8 EE-PNL-CPP3 CRIT INST & CPP CPP3 PNL 120/240 VAC 15 1 Non-ventilated - Not Secured EE-PNL-LPRW2 LP LPRW2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPRW2A LP LPRW2A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured KAMAN MICROCOMPUTER 120VAC PWR EE-XFMR- CPU-354 XFMR 1 kVA N/A 1 Less than 45 kVA COND EE-XFMR-LPRW1 XFMR F/ LP LPRW1 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-LPRW2 XFMR F/ LP LPRW2 & LPRW2A XFMR 0.030 kVA N/A 1 Less than 45 kVA FPC-P-FDHA FPC FDEM HOLDING P A PMP 5 hp 21 1 FPC-P-FDHB FPC FDEM HOLDING P B PMP 5 hp 21 1 HV-AC- CPU-354 LIQUID RADWASTE KAMAN ACU AC 115V N/A 1 Not considered ignition source HV-FAN- HF-RW-1D DF RM HOOD FAN FAN < 5 hp N/A 1 Less than 5 horsepower HV-FCU- AC-RW-1B RW CR ACU FCU < 5 hp N/A 1 Less than 5 horsepower FUEL POOL & CLEANUP LOC PNL 19 LRP-PNL- 19-4-70A PNL 15 1 Non-ventilated - Robustly Secured 70A LRP-PNL- 19-4-70B FUEL POOL FDEM PNL 19-4-70B PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL- 19-4-71 FUEL POOL F A & B INSTR RACK 19-4-71 RACK Instrument Rack N/A 1 Not considered ignition source LRP-PNL- 25-10 RW PNL 25-10 RACK 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-11 RW PNL 25-11 RACK 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-12 RW PNL 25-12 RACK 15 1 Non-ventilated - Robustly Secured LRP-PNL- 25-17 RW PNL 25-17 PNL Ventilated 15 8

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 131 of 169 FIRE ZONE: 21B FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RW CONTR RM HV LOC CONT PNL HV-LRP-PNL- LCP-HV-RW PNL 15 1 Non-ventilated - Robustly Secured RW LRP-PNL-PAS PAS CONTR PNL PNL 15 1 Non-ventilated - Not Secured LRP-RACK-LR106A COND DEMIN LOC INSTR RACK 106A RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR106B COND DEMIN LOC INSTR RACK 106B RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR106C COND DEMIN LOC INSTR RACK 106C RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR106D COND DEMIN LOC INSTR RACK 106D RACK 15 1 Non-ventilated - Not Secured LRP-RACK-LR106E COND DEMIN LOC INSTR RACK 106E RACK 15 1 Non-ventilated - Not Secured LRP-RACK-LR106F COND DEMIN LOC INSTR RACK 106F RACK 15 1 Non-ventilated - Robustly Secured RW BLDG FUEL POOL DEMIN LOC INSTR LRP-RACK-LR110 RACK 15 1 Non-ventilated - Robustly Secured RACK LRP-RACK-LR113 RW DEMIN SV RACK 113 RACK 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR125A FUEL POOL F A SOL RACK LR-125A RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR125B FUEL POOL FDEM SV RACK 125B RACK Instrument Rack N/A 1 Not considered ignition source LRP-RACK-LR126 FUEL POOL FDEM SV CONTR PNL-126 PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR127 LAB DR TK SV CONTR PNL-127 PNL 15 1 Non-ventilated - Robustly Secured RW AUX COND & WTR DEMIN V CONT LRP-RACK-LR128 PNL 15 1 Non-ventilated - Robustly Secured PNL 128 LRP-RACK-LR135 FL DR DEMIN SV RACK 135 RACK 15 1 Non-ventilated - Robustly Secured PNL-20-952A HOPPER 1A PANEL PNL 15 1 Non-ventilated - Robustly Secured PNL-20-952B HOPPER 1B PANEL PNL 15 1 Non-ventilated - Robustly Secured PNL-953 WASTE COLLECTOR FILTER PANEL PNL 15 1 Non-ventilated - Robustly Secured PNL-954 FLOOR COLLECTOR FILTER PANEL PNL 15 1 Non-ventilated - Robustly Secured RMP-P-354 RW LIQ DISCH MONITOR SAMPLE P PMP 2 hp N/A 1 Less than 5 horsepower LIQUID RAD WASTE MONITOR RAD RPM-CPU-354 PNL 120 VAC 15 1 Non-ventilated - Robustly Secured MICROCOMPUTER PANEL RW-AG-RFTA RESIN FD TK AG MOT <5 hp N/A 1 Less than 5 horsepower RW-AG-WFATA WASTE F AID TK AG MOT 3/4 hp N/A 1 Less than 5 horsepower RW-AG-WPTA WASTE PRECOAT TK AG MOT <5 hp N/A 1 Less than 5 horsepower RW-BLWR-RWPB RW PRESS BLWR BLWR 1/3 hp N/A 1 Less than 5 horsepower RW-MOT-WFATDE WASTE F AID TK DUST EVAC MOT 1/3 hp N/A 1 Less than 5 horsepower RW-MOT-WPTDE WASTE PRECOAT TK DUST EVAC MOT MOT 1/3 hp N/A 1 Less than 5 horsepower RW-P-FDFAP FL DR F AID P PMP 1/4 hp N/A 1 Less than 5 horsepower RW-P-FDFHP FL DR F HOLDING P PMP 3 hp N/A 1 Less than 5 horsepower RW-P-RWPHP RW PRESS HYDRAULIC P PMP 5 hp 21 1 RW-P-WCFHUP WASTE COLL F HOLDUP P PMP 5 hp 21 1 RW-P-WFAP WASTE F AID P PMP 1/4 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 132 of 169 FIRE ZONE: 21B FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RW-P-WPP WASTE PRECOAT P PMP 15 hp 21 1 RADWASTE MIXER CONTROL PANEL PNL 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 133 of 169 FIRE ZONE: 21C FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-MCC-W MCC-W MCC 15 9 EE-PNL-LPRW3 LP LPRW3 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-RLP1 RADIOCHEM LAB PNL RLP1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPRW3 XFMR F/ LP LPRW3 XFMR 45 kVA 23b 1 RADIO CHEMISTRY LAB COUNTING RM HV-AC- AC-RW-1C AC < 5 hp N/A 1 Less than 5 horsepower ACU RADWASTE NORMAL RANGE KAMAN HV-AC- CPU-30A AC 115V N/A 1 Not considered ignition source ACU HV-AC- CPU-30B RADWASTE HIGH RANGE KAMAN ACU AC 115V N/A 1 Not considered ignition source HV-FAN- AC-RW-1C AC-RW-1C FCU FAN 26 1 FCU HV-FAN- HF-RW-1A RADIO CHEMISTRY LAB HOOD FAN FAN < 5 hp N/A 1 Less than 5 horsepower HV-FAN- HF-RW-1B RADIO CHEMISTRY LAB HOOD FAN FAN < 5 hp N/A 1 Less than 5 horsepower HV-FAN- HF-RW-1C RADIO CHEM LAB HOOD FAN FAN < 5 hp N/A 1 Less than 5 horsepower HV-FAN- HF-RW-1E BF F/ SR-1E HOOD EXH FAN 3/4 hp N/A 1 Less than 5 horsepower HV-FAN- SF-RW-1A-A RW BLDG H & V UNIT SF FAN 26 1 HV-FAN- SF-RW-1A-B RW BLDG H & V UNIT SF FAN 26 1 HV-FCU- AC-RW-1A RADIOCHEM LAB ACU FCU 26 1 HV-FCU- AC-RW-1C FCU F/ AC-RW-1C FCU 26 1 HV-FCU- HV-RW-1D RW-918-B202 OFFICE COOL FCU FCU 26 1 HV-FCU- HV-RW-1F RW-918-B209 SAMPLE RM COOL FCU FCU 26 1 HV-FCU- HV-RW-1G RW-918-B202 CORR COOL FCU FCU 26 1 HV-P- CHP-RW-1A CHILLED WTR P CHP-RW-1A PMP < 5 hp N/A 1 Less than 5 horsepower HV-P- RP-RW-1A REFR P F/ CH-RW-1A PMP < 5 hp N/A 1 Less than 5 horsepower HV-P- SP-RW-1A SOLUTION P F/ CH-RW-1A PMP < 5 hp N/A 1 Less than 5 horsepower HW-P-CHB HW CIRC P B PMP 1/2 hp N/A 1 Less than 5 horsepower HW-P-CHC HW CIRC P C PMP 1/3 hp N/A 1 Less than 5 horsepower HW-P-CHD HW CIRC P D PMP 1/3 hp N/A 1 Less than 5 horsepower LRP-RACK- LIR-HV-RW-RW BLDG HV UNIT 1-HV-RW-1A LIR RACK 15 1 Non-ventilated - Not Secured A

OFF BLDG HW HTG LOC INSTR RACK LRP-RACK- LIR-OFFICE RACK 15 1 Non-ventilated - Not Secured OFFICE RW BLDG CONCENT WASTE MEAS SYS LRP-RACK-LR136 RACK 15 1 Non-ventilated - Not Secured SOV RACK RW BLDG SAMPLG RACK 1E GRAB LRP-RACK-SRE RACK 15 1 Non-ventilated - Not Secured SAMPLE STA LRP-RACK-SREC RACK F/ COND F DEM MONITORING RACK 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 134 of 169 FIRE ZONE: 21C FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RMV-P-30 RW ARW BLDG VENT NMC SAMPLE P PMP < 5 hp N/A 1 Less than 5 horsepower RMV-P-30A RW HI RANGE NORM SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMV-P-30B RW HI RANGE HI SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 135 of 169 FIRE ZONE: 21D FIRE COMPARTMENT: RW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C1 COND FDEM AREA CRN C1 HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-H16 RW CENT RM ELEC HST BLDG-HST-H16 HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-H17 LAUNDRY RM HST H17 BLDG-HST-H17 HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-PNL-LPRW4 LP LPRW4 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPCH1 CHANGE AREA HV PP PP-CH-1 PNL 480 VAC 15 1 Non-ventilated EE-XFMR-HMSP2 XFMR F/ HOT MACH SHOP PNL HMSP2 XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-LPRW4 XFMR F/ LP LPRW4 XFMR 30 kVA N/A 1 Less than 45 kVA HV-FAN- EF-RW-1A RW BLDG EXH FAN FAN 75 hp 26 1 HV-FAN- EF-RW-1B RW BLDG EXH FAN FAN 75 hp 26 1 HV-FAN- EF-RW-1C RW BLDG EXH FAN FAN 10 hp 26 1 HV-FAN- EF-RW-1D RW BLDG EXH FAN FAN 10 hp 26 1 HV-FCU- HV-RW-RL LAUNDRY A/C AH FCU 26 1 LRP-RACK- LIR-HV-RW- RW BLDG EXH FAN LOC INSTR RACK HV-PNL 15 1 Non-ventilated - Not Secured EFA RW-EFA LRP-RACK- LIR-HV-RW- RW BLDG EXH FAN LOC INSTR RACK HV-PNL 15 1 Non-ventilated - Not Secured EFB RW-EFB LRP-RACK- LIR-HV-RW- RW BLDG EXH FAN LOC INSTR RACK HV-PNL 15 1 Non-ventilated - Not Secured EFC RW-EFC LRP-RACK- LIR-HV-RW- RW BLDG EXH FAN LOC INSTR RACK HV-PNL 15 1 Non-ventilated - Not Secured EFD RW-EFD HI CONDUCTIVITY PRCS LOC INST RACK LRP-RACK-LR109 RACK 15 1 Non-ventilated - Not Secured 109 RW-AG-AFMXTA ANION FLOC MIXING TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower RW-AG-CFMXTA CATION FLOC MIXING TK AG MOT 1/4 hp N/A 1 Less than 5 horsepower RW-AG-RATA RESIN ADDITION TK AG MOT < 5 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 136 of 169 FIRE ZONE: 22A FIRE COMPARTMENT: ARW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections AOG-AE-SJAE1A 3RD STAGE EJECTOR 1A MOT 14 1 AOG-AE-SJAE1B 3RD STAGE EJECTOR 1B MOT 14 1 AOG-BLWR-SU1A STARTUP BLWR 1A BLWR 5 hp 14 1 FREON CPSR F/ -30 DEG-F GLYCOL AOG-CPSR-FCP1A1 CPSR 50 hp 9 1 COOL FREON CPSR F/ +34 DEG-F GLYCOL AOG-CPSR-FCP1A2 CPSR 25 hp 9 1 COOL FREON CPSR F/ -30 DEG-F GLYCOL AOG-CPSR-FCP1B1 CPSR 50 hp 9 1 COOL FREON CPSR F/ +34 DEG-F GLYCOL AOG-CPSR-FCP1B2 CPSR 25 hp 9 1 COOL AOG-DRY-1A1 OG DRY BED 1A1 AIR DRY N/A 1 Enclosed - not ignition source AOG-DRY-1A2 OG DRY BED 1A2 AIR DRY N/A 1 Enclosed - not ignition source AOG-DRY-1B1 OG DRY BED 1B1 AIR DRY N/A 1 Enclosed - not ignition source AOG-DRY-1B2 OG DRY BED 1B2 AIR DRY N/A 1 Enclosed - not ignition source GLYCOL P F/ -30 DEG-F GLYCOL COOL AOG-P-GP2A1 PMP 50 hp 21 1 SKID GLYCOL P F/ +34 DEG-F GLYCOL COOL AOG-P-GP2A2 PMP 25 hp 21 1 SKID GLYCOL P F/ -30 DEG-F GLYCOL COOL AOG-P-GP2B1 PMP 50 hp 21 1 SKID GLYCOL P F/ +34 DEG-F GLYCOL SKID AOG-P-GP2B2 PMP 25 hp 21 1 COOL AOG-RCMB-1A CATLY RCMB 1A RECOMB 20 1 AOG-RCMB-1B CATLY RCMB 1B RECOMB 20 1 BLDG-HST-RCA RCMB RM A HST BLDG-HST-RCA HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-RCB RCMB RM B HST BLDG-HST-RCB HOIST N/A 1 Infrequent Use/Overcurrent Protection CF-P-DD1 COND SUMP P DD-1 PMP 3 hp N/A 1 Less than 5 horsepower CF-P-DD2 COND SUMP P DD-2 PMP 3 hp N/A 1 Less than 5 horsepower CF-P-OGCBPA COND FDEM OG COND BOOSTER P A PMP 20 hp 21 1 CF-P-OGCBPB COND FDEM OG COND BOOSTER P B PMP 20 hp 21 1 EE-MCC-OG1 MCC-OG1 MCC 15 2 EE-MCC-OG2 MCC-OG2 MCC 15 5 EE-PNL-LPAR1 LP LP-AR-1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-LPAR1 XFMR F/ LP LP-AR-1 XFMR 30 kVA N/A 1 Less than 45 kVA LRP-PNL-GCP1 AOG -30 FREON CPSR CONTR PNL PNL 15 1 Non-ventilated - Robustly Secured LRP-PNL-GCP2 AOG +34 FREON CPSR CONTR PNL PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK-LR162 RCMB 1B SV LOC RACK RACK Instrument Rack N/A 1 Not considered ignition source

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 137 of 169 FIRE ZONE: 22A FIRE COMPARTMENT: ARW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections LRP-RACK-LR163 RCMB 1A SV LOC RACK RACK Instrument Rack N/A 1 Not considered ignition source RW-AG-CWTA CONCENTRATED WASTE TK MX MOT 7-1/2 hp 14 1 RW-P-AA1 ARW BLDG FL DR SUMP P AA1 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-AA2 ARW BLDG FL DR SUMP P AA2 PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-BB ARW BLDG EQUIP DR SUMP P BB PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-CC ARW BLDG CHEM DR SUMP P CC PMP 1-1/2 hp N/A 1 Less than 5 horsepower RW-P-CFTP CONCENTRATOR FD TK P PMP 5 hp 21 1 RW-P-CFTRP CONCENTRATOR FD TK RECIRC P PMP 7 1/2 hp 21 1 RW-P-CMUPA COND MAKEUP P A (UFSG) PMP 7 1/2 hp 21 1 RW-P-CMUPB COND MAKEUP P B (UFSG) PMP 7 1/2 hp 21 1 RW-P-CWMTFP CONCENTRATE WASTE MEAS TK FD P PMP 7 1/2 hp 21 1 RW-P-CWSTDP CHEM WASTE SAMPLE TK DISCH P PMP 7 1/2 hp 21 1 RW-P-DTDP DISTILLATE TK DISCH P PMP 7-1/2 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 138 of 169 FIRE ZONE: 22B FIRE COMPARTMENT: ARW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-ARW ARW TRUCK BAY CRN (BLDG-HST-ARW) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-H18 RW SHLD DOOR HST (BLDG-HST-H18) HOIST N/A 1 Infrequent Use/Overcurrent Protection CM-P-CWH CONCENTRATOR WTR HTR RECIRC P PMP 1/6 hp N/A 1 Less than 5 horsepower EE-MCC-MR MCC-MR MCC 15 6 EE-PNL-20-996 MAXIMUM RECYCLE PANEL PNL Ventilated 15 3 EE-PNL-AOGCRP AOG CONTR PWR DIST PNL PNL 120 VAC - Ventilated 15 4 EE-PNL-ARW 125VDC PNL ARW PNL 125 VDC 15 1 Non-ventilated - Robustly Secured EE-PNL-CPARA CPP CP-AR-A PNL 15 1 Non-ventilated - Not Secured EE-PNL-LPAR2 LP LP-AR-2 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPHTAR1 HEAT TRACE PP PP-HT-AR-1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-XFMR-CPARA XFMR F/ CPP CP-AR-A XFMR 15 kVA N/A 1 Less than 45 kVA EE-XFMR-LPAR2 XFMR F/ LP LP-AR-2 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-PPHTAR1 XFMR F/ PP PP-HT-AR-1 XFMR 45 kVA 23b 1 HV-FAN- EF-AR-1C ARW BLDG RACK FUME HOOD EXH FAN FAN < 5 hp N/A 1 Less than 5 horsepower HV-FCU- FC-AR-1A AOG CR FAN COIL UNIT / AIR COND FCU 26 1 HV-FCU- FC-AR-1B ARW CR FAN COIL UNIT / AIR COND FCU 26 1 HV-HTR- EHC-AR-1A AOG CR FCU DUCT HTR HTR < 5 hp N/A 1 Less than 5 horsepower HV-HTR- EHC-AR-1B ARW CR FCU DUCT HTR HTR < 5 hp N/A 1 Less than 5 horsepower HV-HTR- EUH-AR-1 TRUCK BAY UNIT HTR HTR < 5 hp N/A 1 Less than 5 horsepower HV-HTR- EUH-AR-2 TRUCK BAY UNIT HTR HTR < 5 hp N/A 1 Less than 5 horsepower LCP-HV-AR H&V LOCAL CONTROL PANEL PNL 15 1 Non-ventilated - Not Secured LRP-PNL-DWS RW DEWATER SYS CONTR PNL PNL 15 1 Non-ventilated - Robustly Secured LRP-RACK- LIR-HV-AR-ARW BLDG AIR CONTR PNL 15 1 Non-ventilated - Not Secured 1A LRP-RACK-SRG AUG RW BLDG FLUID SAMPLG RACK 1G RACK Instrument Rack N/A 1 Not considered ignition source RW-AG-PATA PHOSPHATE ADDITION TK MX MOT 1/4 hp N/A 1 Less than 5 horsepower RWA-TRC-1 HEAT TRACE PNL Ventilated 15 1 RW-MOT-DSB DEWATER SYS BLWR MOT MOT 30 hp 14 1 RW-P-CRP CONCENTRATOR RECIRC P PMP 30 hp 21 1 RW-P-DSDP DEWATER SYS DEWATER P PMP 21 1 RW-P-DSSP DEWATER SYS HUMD INST SAMPLE P PMP 21 1 RW-P-PAP PHOSPHATE ADDITION P PMP 1-1/2 hp N/A 1 Less than 5 horsepower UNFIRED STEAM GENERATOR PANEL PNL Ventilated 15 1 GA-2TMO PANEL PNL Ventilated 15 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 139 of 169 FIRE ZONE: 22C FIRE COMPARTMENT: ARW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections FP-PNL-FPS24 FP SYS 24 AUGMENTED RW CONTR PNL PNL 24 VDC/120 VAC 15 1 Non-ventilated - Robustly Secured FP-PNL-FPS25 FP SYS 25 AUGMENTED RW CONTR PNL PNL 24 VDC/120 VAC 15 1 Non-ventilated - Robustly Secured HV-FAN- EF-AR-1A ARW BLDG FU-AR-1A EXH FAN FAN 26 1 HV-FAN- EF-AR-1B ARW BLDG FU-AR-1B EXH FAN FAN 26 1 LRP-RACK- LIR-HV-AR-ARW BLDG HV UNIT 1-HV-AR-EF LOC IR RACK 15 1 Non-ventilated - Not Secured EF RW-BLWR-DSB DEWATER SYS BLWR BLWR 14 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 140 of 169 FIRE ZONE: 23A FIRE COMPARTMENT: YD No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-MCC-FP MCC MCC-FP MCC 15 4 EE-PNL-1A PNL 15 1 Non-ventilated - Robustly Secured EE-PNL-PPFP1 PNL 120/240 VAC 15 1 Non-ventilated - Not Secured EE-XFMR-FP1 XFMR F/ FIRE P HOUSE PP PPFP1 XFMR 30 kVA N/A 1 Less than 45 kVA FP-HTR-A FP HTR A RECIRC TO STORAGE TK A HTR <5 hp N/A 1 Less than 5 horsepower FP-P-E FP ELEC FIRE P E PMP 400 hp 21 1 FP-P-F FP JOCKEY P PMP 15 hp 21 1 FP-P-G FP CIRC P G PMP 1-3/4 hp N/A 1 Less than 5 horsepower FP-PNL-1 ELECTRIC FIRE PUMP E CONTROLLER PNL 460 VAC 15 1 Non-ventilated FP-PNL-3 FP MOT DR JOCKEY P C FP-PNL-3 PNL 460 VAC 15 1 Non-ventilated FP-PNL-4 FP WTR SYS PRCS PNL FP-PNL-4 PNL 120 VAC 15 1 Non-ventilated - Robustly Secured FP-PNL-5 FIRE DETECTION PNL FP-PNL-5 PNL 120 VAC 15 1 Non-ventilated - Not Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 141 of 169 FIRE ZONE: 23B FIRE COMPARTMENT: YD No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections FP-BAT-1A FP-P-D FP D P BAT BAT 1 cell 1 1 Includes all FP Pump D Batteries FP-BAT-1B FP-P-D FP D P BAT BAT 1 cell N/A 1 Included with FP-BAT-1A FP-P-D FP-BAT-2A FP-P-D FP D P BAT BAT 1 cell N/A 1 Included with FP-BAT-1A FP-P-D FP-BAT-2B FP-P-D FP D P BAT BAT 1 cell N/A 1 Included with FP-BAT-1A FP-P-D FP-D-D FP D FIRE P ENG DG 8 1 Diesel Fire Pump FP-GEN-FP-P-D D ENG ALT GEN N/A 1 Included with FP-D-D FP-HTR-B FP HTR B RECIRC TO STORAGE TK B HTR <5 hp N/A 1 Less than 5 horsepower FP-P-D FP D FIRE P D PMP N/A 1 Included with FP-D-D FP-P-H FP CIRC P H PMP 1-3/4 hp N/A 1 Less than 5 horsepower FP-PNL-2 FP D P D CONTR PNL FP-PNL-2 PNL 24 VDC/120 VAC 15 1 FP-PNL-2A FIRE P HOUSE AUX REL PNL PNL 15 1 Non-ventilated - Robustly Secured

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 142 of 169 FIRE ZONE: 23C FIRE COMPARTMENT: YD No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections FP-TK-D FIRE P FUEL STORAGE TK D DO TK TNK N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 143 of 169 FIRE ZONE: 24 FIRE COMPARTMENT: MPF No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-MPF MPF CRN (BLDG-HST-MPF) HOIST N/A 1 Infrequent Use/Overcurrent Protection EE-BAT-PMIS PMIS UPS 125V BAT PNL 125 VDC - Ventilated 15 1 EE-CHG-UPS UNINTERRUPTIBLE TO PMIS BAT CHGR CHG 10 2 EE-IVTR-UPS UNINTERRUPTIBLE TO PMIS IVTR IVTR Ventilated 15 4 EE-MCC-MP MPF HVAC MCC MCC 15 3 EE-PNL- HV-MPF MPF HVAC CONTR PNL PNL 15 1 Non-ventilated - Not Secured EE-PNL-CP1 MPF DECON RM CONTR PNL 1 PNL 15 1 Non-ventilated - Robustly Secured EE-PNL-CP2 MPF DECON RM CONTR PNL 2 PNL 15 1 Non-ventilated - Robustly Secured EE-PNL-LPDR LP F/ DECON RM PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-LPMP1 MPF 480/277 LP PNL 480/277 VAC 15 1 Non-ventilated EE-PNL-LPMP2 LP F/ TOOL CRIB PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-MDP3 MPF HVAC EQUIP PP PNL 480 VAC 15 1 Non-ventilated EE-PNL-PPMP1 MPF 120/208 PP PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPMP2 MPF 480/277 PP PNL 480/277 VAC 15 1 Non-ventilated EE-PNL-PPMP3 MPF MACH SHOP PP PNL 480/277 VAC 15 1 Non-ventilated EE-PNL-PPMP4 MPF MACH SHOP PP PNL 480/277 VAC 15 1 Non-ventilated EE-SWBD-MDP1 MN SWBD 1 IN MPF SWBD 277/480 V 15 3 HEAF EE-SWBD-MDP2 MN SWBD 2 IN MPF SWBD 277/480 V 15 3 HEAF EE-SW-UPS1A UPS AUTO TRANSFER SWITCH PNL 480/277 VAC 15 1 Non-ventilated EE-XFMR-LPDR XFMR F/ DECON RM LTG PNL LPDR XFMR 45 kVA 23b 1 EE-XFMR-LPMP2 XFMR F/ TOOL CRIB LP LPMP2 XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-PPMP1 30 KVA DRY TYPE XFMR XFMR 30 kVA N/A 1 Less than 45 kVA EE-XFMR-RPS1A SOLATRON ACUVOLT LINE COND XFMR 25 kVA 23b 1 PRA Component - Less than 45 kVA EE-XFMR-RPS1B SOLATRON ACUVOLT LINE COND XFMR 25 kVA 23b 1 PRA Component - Less than 45 kVA EE-XFMR-UPS1 XFMR F/ UPS BYPASS FD TO PMIS XFMR 75 kVA 23b 1 FP-PNL-MPF FIRE DETECTION PNL FP-PNL-MPF PNL 120 VAC 15 1 Non-ventilated - Not Secured FP SYSTEM-MPF CONTR PNL FP-PNL-MPF CONTROL PNL 115 VAC 15 1 Non-ventilated - Robustly Secured FIRECYCLE II HV-FAN- MPF-EF1 MPF EXH FAN #1 FAN 26 1 HV-FAN- MPF-EF2 MPF EXH FAN #2 FAN 26 1 HV-FAN-AHU1 MPF AH 1 FAN 26 1 HV-FAN-AHU2 MPF AH 2 FAN 26 1 HV-FAN-AHU3 MPF AH 3 FAN 26 1 HV-FAN-AHU4 MPF AH 4 FAN 26 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 144 of 169 FIRE ZONE: 24 FIRE COMPARTMENT: MPF No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections HV-FAN-UPS1B MPF BAT RM UPS EXH FAN FAN 1/2 hp N/A 1 Less than 5 horsepower HV-MOT-HPF1 MOT 10 hp 14 1 RMV-P-10A INLET PUMP FOR MPF VENT MON SYS PMP 1/4 hp N/A 1 Less than 5 horsepower RMV-P-10B INLET PUMP FOR MPF VENT MON SYS PMP 1/4 hp N/A 1 Less than 5 horsepower RMV-STR-10 RMV-P-10 MOT STR PNL 480 VAC 15 1 Non-ventilated SA-CPSR-MPF1 MPF AIR CPSR #1 CPSR 25 hp 9 1 SA-CPSR-MPF2 MPF AIR CPSR #2 CPSR 25 hp 9 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 145 of 169 FIRE ZONE: 25 FIRE COMPARTMENT: OG No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-LPGB1 OG BLDG LP LPGB1 PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured EE-PNL-PPGB1 OG BLDG PP PPGB1 PNL 15 1 Non-ventilated - Robustly Secured EE-STR-PPGB1 HV-OG-HV-OG-A STR ON PPGB1 PNL 480 VAC 15 1 Non-ventilated A

EE-STR-Z1 SUMPZ STR F/ DIV I Z SUMP P RW-P-Z1 PNL 480 VAC 15 1 Non-ventilated EE-STR-Z2 SUMPZ STR F/ Z SUMP P RW-P-Z2 PNL 480 VAC 15 1 Non-ventilated KAMAN MICROCOMPUTER 120 VAC PWR EE-XFMR- CPU-3A_3B XFMR 1 kVA N/A 1 Less than 45 kVA COND EE-XFMR-LPGB1 XFMR F/ LTG PNL LPGB1 & LPGB2 XFMR 9 kVA N/A 1 Less than 45 kVA HV-AC- CPU-3A ERP NORMAL RANGE KAMAN ACU AC 115V N/A 1 Not considered ignition source HV-AC- CPU-3B ERP HIGH RANGE KAMAN ACU AC 115V N/A 1 Not considered ignition source HV-FCU- HV-OG-1A OG BLDG VENT UNIT FCU 1-1/2 hp N/A 1 Less than 5 horsepower OG BLDG HV SELF CONTAINED UNIT HV-HTR- EUH-OG-1A HTR <5 hp N/A 1 Less than 5 horsepower HTR OG BLDG HV SELF CONTAINED UNIT HV-HTR- EUH-OG-1B HTR <5 hp N/A 1 Less than 5 horsepower HTR LRP-PNL- 17-18 STACK GAS RACK 17-18 PNL Instrument Rack N/A 1 Not considered ignition source LRP-PNL- LCP-HV-OG OG BLDG HV LOC CONT PNL HV-OG PNL 15 1 Non-ventilated - Not Secured LRP-RACK-LR111 OG BLDG INSTR RACK 111 RACK 15 1 Non-ventilated - Robustly Secured OG-FAN- DF-OG-1A OG DILUTION FAN A FAN 15 hp 26 1 OG-FAN- DF-OG-1B OG DILUTION FAN B FAN 15 hp 26 1 OG-P-ERPSA ERP GAS SAMPLE P A PMP 1 hp N/A 1 Less than 5 horsepower OG-P-ERPSB ERP GAS SAMPLE P B PMP 1 hp N/A 1 Less than 5 horsepower RMP-CPU-3A PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured RMP-CPU-3B PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured RMP-P-3A ERP HI RANGE NORM SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMP-P-3B ERP HI RANGE HI SAMPLE P PMP 1-1/2 hp N/A 1 Less than 5 horsepower RMP-P-3C ERP COND REMOVAL P PMP 1-1/2 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 146 of 169 FIRE ZONE: 26 FIRE COMPARTMENT: OWC No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-PNL-OWCH2A 480V OWC GG BLDG DIST PANEL PNL 480 VAC 15 1 EE-PNL-OWCH2B 120/208V OWC GG BLDG DIST PANEL PNL 120/208 VAC 15 1 Non-ventilated - Robustly Secured OWC GAS GENERATION BLDG CONTROL HV-AC-H2CR AC < 5 hp N/A 1 Less than 5 horsepower ROOM OWC BLDG HYDROGEN ROOM EXHAUST HV-FAN-H2 FAN 5 hp 26 1 FAN OWC BLDG OXYGEN ROOM EXHAUST HV-FAN-O2 FAN 5 hp 26 1 FAN OWC-CPSR-H2A H2 COMPRESSOR A CPSR 9 1 OWC-CPSR-H2B H2 COMPRESSOR B CPSR 9 1 OWC-DRY-300 O2 IN H2 DRYER "A" AIR DRY N/A 1 Enclosed - not ignition source OWC-DRY-301 O2 IN H2 DRYER "B" AIR DRY N/A 1 Enclosed - not ignition source OWC-DRY-310 H2 IN O2 DRYER "A" AIR DRY N/A 1 Enclosed - not ignition source OWC-DRY-311 H2 IN O2 DRYER "B" AIR DRY N/A 1 Enclosed - not ignition source COOLING WATER HEAT EXCHANGER OWC-FAN-1 FAN 26 1 FAN 1 COOLING WATER HEAT EXCHANGER OWC-FAN-2 FAN 26 1 FAN 2 OWC-MCC-P700 P700 MOTOR CONTROL CENTER MCC 15 1 OWC-MOT-RECT FAN RECTIFIER FAN MOTOR MOT 1-1/2 hp N/A 1 Less than 5 horsepower OWC-P-CW702A COOLING WATER PUMP A PMP 5 hp 21 1 OWC-P-CW702B COOLING WATER PUMP B PMP 5 hp 21 1 H2/O2 INJECTION SYSTEM CONTROL OWC-PNL-P500 PNL Ventilated 15 2 PNL H2/O2 GENERATION SYSTEM CONTROL OWC-PNL-P700 PNL 15 1 Non-ventilated - Robustly Secured PNL OWC-RECT-1 OWC RECTIFIER RECT 480 VAC 15 1 OWC-RECT-1 OWC RECTIFIER RECT 480 VAC 16a 1 HEAF OWC-TK-GAS402 H2 GASHOLDER TNK N/A 1 OWC-XFMR-H2 XFMR 30 kVA N/A 1 Less than 45 kVA OWC-XFMR-H2PC XFMR 120V N/A 1 Less than 45 kVA MISCELLANEOUS HYDROGEN MISC H2 19 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 147 of 169 FIRE ZONE: CM FIRE COMPARTMENT: CM No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections N/A NO FIXED IGNITION SOURCES N/A N/A 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 148 of 169 FIRE ZONE: DW FIRE COMPARTMENT: DW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections BLDG-HST-C2 RB DW HST (BLDG-HST-C2) HOIST N/A 1 Infrequent Use/Overcurrent Protection BLDG-HST-CRD1 CRD REMOVAL CHUTE HST HOIST N/A 1 Infrequent Use/Overcurrent Protection DW SW HATCH HST H9A (BLDG-HST-BLDG-HST-H9A HOIST N/A 1 Infrequent Use/Overcurrent Protection H9A)

BLDG-HST-H9B DW NE HATCH HST H9B (BLDG-HST-H9B) HOIST N/A 1 Infrequent Use/Overcurrent Protection HV-FAN- FC-R-1A DW FCU FC-R-1A FAN 26 1 HV-FAN- FC-R-1B DW FCU FC-R-1B FAN 26 1 HV-FAN- FC-R-1C DW FCU FC-R-1C FAN 26 1 HV-FAN- FC-R-1D DW FCU FC-R-1D FAN 26 1 MS-AOV-A080A MS ISO V A INBOARD MSIV 21 1 MS-AOV-A080B MS ISO V B INBOARD MSIV 21 1 MS-AOV-A080C MS ISO V C INBOARD MSIV 21 1 MS-AOV-A080D MS ISO V D INBOARD MSIV 21 1 NB-P-JP1 CAL JET P PMP N/A 1 Not considered ignition source NB-P-JP10 JET P PMP N/A 1 Not considered ignition source NB-P-JP11 CAL JET P PMP N/A 1 Not considered ignition source NB-P-JP12 JET P PMP N/A 1 Not considered ignition source NB-P-JP13 JET P PMP N/A 1 Not considered ignition source NB-P-JP14 JET P PMP N/A 1 Not considered ignition source NB-P-JP15 JET P PMP N/A 1 Not considered ignition source NB-P-JP16 CAL JET P PMP N/A 1 Not considered ignition source NB-P-JP17 JET P PMP N/A 1 Not considered ignition source NB-P-JP18 JET P PMP N/A 1 Not considered ignition source NB-P-JP19 JET P PMP N/A 1 Not considered ignition source NB-P-JP2 JET P PMP N/A 1 Not considered ignition source NB-P-JP20 JET P PMP N/A 1 Not considered ignition source NB-P-JP3 JET P PMP N/A 1 Not considered ignition source NB-P-JP4 JET P PMP N/A 1 Not considered ignition source NB-P-JP5 JET P PMP N/A 1 Not considered ignition source NB-P-JP6 CAL JET P PMP N/A 1 Not considered ignition source NB-P-JP7 JET P PMP N/A 1 Not considered ignition source NB-P-JP8 JET P PMP N/A 1 Not considered ignition source NB-P-JP9 JET P PMP N/A 1 Not considered ignition source RR-P-A RR P A PMP 5500 hp 21 1

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 149 of 169 FIRE ZONE: DW FIRE COMPARTMENT: DW No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections RR-P-B RR P B PMP 5500 hp 21 1 RR-PNL-VA RR VIB LOC PNL PNL 15 1 RR-PNL-VB RR VIB LOC PNL PNL 15 1 RW-P-F1 DW FL DR SUMP P F1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-F2 DW FL DR SUMP P F2 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-G1 DW EQUIP DR SUMP P G1 PMP 3 hp N/A 1 Less than 5 horsepower RW-P-G2 DW EQUIP DR SUMP P G2 PMP 3 hp N/A 1 Less than 5 horsepower

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 150 of 169 FIRE ZONE: YD FIRE COMPARTMENT: YD No. of Vertical Ignition Source ID Ignition Source Description Equip Type Attribute BIN # Notes Sections EE-P-A1 A MN XFMR OIL P - SOUTHEAST PMP 21 1 EE-P-A2 A MN XFMR OIL P - SOUTHWEST PMP 21 1 EE-P-A3 A MN XFMR OIL P - NORTHWEST PMP 21 1 EE-P-A4 A MN XFMR OIL P - NORTHEAST PMP 21 1 EE-P-B1 B MN XFMR OIL P - SOUTHEAST PMP 21 1 EE-P-B2 B MN XFMR OIL P - SOUTHWEST PMP 21 1 EE-P-B3 B MN XFMR OIL P - NORTHWEST PMP 21 1 EE-P-B4 B MN XFMR OIL P - NORTHEAST PMP 21 1 EE-P-C1 C MN XFMR OIL P - SOUTHEAST PMP 21 1 EE-P-C2 C MN XFMR OIL P - SOUTHWEST PMP 21 1 EE-P-C3 C MN XFMR OIL P - NORTHWEST PMP 21 1 EE-P-C4 C MN XFMR OIL P - NORTHEAST PMP 21 1 EE-P-S1 SPARE MN XFMR OIL P - SOUTHEAST PMP 21 1 EE-P-S2 SPARE MN XFMR OIL P - SOUTHWEST PMP 21 1 EE-P-S3 SPARE MN XFMR OIL P - NORTHWEST PMP 21 1 EE-P-S4 SPARE MN XFMR OIL P - NORTHEAST PMP 21 1 EE-XFMR-E EMERG STA SERV XFMR YD XFMR 27 1 EE-XFMR-E EMERG STA SERV XFMR YD XFMR 28 1 EE-XFMR-MAIN A MN STEP STEP-UP XFMR PH A YD XFMR 27 1 EE-XFMR-MAIN A MN STEP STEP-UP XFMR PH A YD XFMR 28 1 EE-XFMR-MAIN B MN STEP STEP-UP XFMR PH B YD XFMR 27 1 EE-XFMR-MAIN B MN STEP STEP-UP XFMR PH B YD XFMR 28 1 EE-XFMR-MAIN C MN STEP STEP-UP XFMR PH C YD XFMR 27 1 EE-XFMR-MAIN C MN STEP STEP-UP XFMR PH C YD XFMR 28 1 EE-XFMR-MAIN D MN STEP STEP-UP XFMR INSTL SPARE YD XFMR 27 1 EE-XFMR-MAIN D MN STEP STEP-UP XFMR INSTL SPARE YD XFMR 28 1 EE-XFMR-N NORM STA SERV XFMR YD XFMR 27 1 EE-XFMR-N NORM STA SERV XFMR YD XFMR 28 1 EE-XFMR-SU STARTUP STA SERV XFMR YD XFMR 27 1 EE-XFMR-SU STARTUP STA SERV XFMR YD XFMR 28 1 ISOLATION PHASE BUS DUCT A ISO PH 27 1 ISOLATION PHASE BUS DUCT B ISO PH 27 1 ISOLATION PHASE BUS DUCT C ISO PH 27 1 HYDROGEN STORAGE TANKS HYD TK 17 4

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 151 of 169 Attachment C Transient Ignition Sources

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 152 of 169 Table C Fire Zone Self-Ignited Cable and Junction Box Ignition Frequencies Bin 12 Self- Bin 18 Ignition Location Ignited Junction Fire Fire Quantity Cable Load Source Weighting Generic Plant Location Btu/Unit Comments Cable Fire Box Fire Zone Comp (lbs) (Btu) Weighting Factor, Zone Fire Zone Fire Factor, WIS,J WL Frequency Frequency 1A RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1B RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1C RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1D RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1E RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1F RB-E Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 1G RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 2A-1 RB Control/Auxiliary/Reactor Building 10234 12,165 CABLE 1.245E+08 2.078E-02 1 8.519E-05 3.948E-05 2A-2 RB Control/Auxiliary/Reactor Building 20469 12,165 CABLE 2.490E+08 4.156E-02 1 1.704E-04 7.896E-05 2A-3 RB Control/Auxiliary/Reactor Building 10234 12,165 CABLE 1.245E+08 2.078E-02 1 8.519E-05 3.948E-05 2B RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 2C RB Control/Auxiliary/Reactor Building 18732 12,165 CABLE 2.279E+08 3.803E-02 1 1.559E-04 7.226E-05 2D RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 2E TB-C Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 3A RB-J Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 3B RB-K Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 3C RB Control/Auxiliary/Reactor Building 8508 12,165 CABLE 1.035E+08 1.727E-02 1 7.082E-05 3.282E-05 3D RB Control/Auxiliary/Reactor Building 3282 12,165 CABLE 3.993E+07 6.663E-03 1 2.732E-05 1.266E-05 3E-1 RB Control/Auxiliary/Reactor Building 3960 12,165 CABLE 4.817E+07 8.040E-03 1 3.296E-05 1.528E-05 3E-2 RB Control/Auxiliary/Reactor Building 1980 12,165 CABLE 2.409E+07 4.020E-03 1 1.648E-05 7.638E-06 4A RB Control/Auxiliary/Reactor Building 5789 12,165 CABLE 7.042E+07 1.175E-02 1 4.819E-05 2.233E-05 4B RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 RB Control/Auxiliary/Reactor Building 9270 12,165 CABLE 1.128E+08 1.882E-02 1 7.716E-05 3.576E-05 4C 4D RB Control/Auxiliary/Reactor Building 2151 12,165 CABLE 2.617E+07 4.367E-03 1 1.790E-05 8.297E-06 5A RB Control/Auxiliary/Reactor Building 3163 12,165 CABLE 3.848E+07 6.421E-03 1 2.633E-05 1.220E-05 5B RB Control/Auxiliary/Reactor Building 17797 12,165 CABLE 2.165E+08 3.613E-02 1 1.481E-04 6.865E-05 6 RB Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 153 of 169 Bin 12 Self- Bin 18 Ignition Location Ignited Junction Fire Fire Quantity Cable Load Source Weighting Generic Plant Location Btu/Unit Comments Cable Fire Box Fire Zone Comp (lbs) (Btu) Weighting Factor, Zone Fire Zone Fire Factor, WIS,J WL Frequency Frequency CB-A Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 7A 7B CB-A Control/Auxiliary/Reactor Building 10 12,165 CABLE 1.217E+05 2.030E-05 1 8.324E-08 3.857E-08 8A CB-D Control/Auxiliary/Reactor Building 6603 12,165 CABLE 8.033E+07 1.341E-02 1 5.496E-05 2.547E-05 8B CB-C Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 8C CB-A Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 8D CB-A Control/Auxiliary/Reactor Building 30 20,000 CABLE(TRANSIENT) 6.000E+05 1.001E-04 1 4.105E-07 1.903E-07 8E CB-A-1 Control/Auxiliary/Reactor Building 100 12,165 CABLE(MISC.) 1.217E+06 2.030E-04 1 8.324E-07 3.857E-07 8F CB-B Control/Auxiliary/Reactor Building 100 12,165 CABLE(MISC.) 1.217E+06 2.030E-04 1 8.324E-07 3.857E-07 8G CB-B Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 8H CB-A-1 Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 9A CB-D Control/Auxiliary/Reactor Building 133639 12,165 CABLE 1.626E+09 2.713E-01 1 1.112E-03 5.155E-04 9B CB-D Control/Auxiliary/Reactor Building 7970 12,165 CABLE 9.696E+07 1.618E-02 1 6.634E-05 3.074E-05 10A CB-D Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 CABLE(ETHERNET CB-D Control/Auxiliary/Reactor Building 1859 12,165 2.261E+07 3.774E-03 1 1.547E-05 7.171E-06 10B TRAY) 11A TB-A Turbine Building 1313 12,165 CABLE 1.597E+07 2.666E-03 1 1.093E-05 5.065E-06 11B TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 11C TB-A Turbine Building 34448 12,165 CABLE 4.191E+08 6.994E-02 1 2.867E-04 1.329E-04 11D TB-A Turbine Building 5000 12,165 CABLE(TRANSIENT) 6.083E+07 1.015E-02 1 4.162E-05 1.929E-05 11E TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 11F TB-A Turbine Building 17572 12,165 CABLE 2.138E+08 3.567E-02 1 1.463E-04 6.778E-05 11G TB-A Turbine Building 11482 12,165 CABLE 1.397E+08 2.331E-02 1 9.557E-05 4.429E-05 11H TB-A Turbine Building 19359 12,165 CABLE 2.355E+08 3.930E-02 1 1.611E-04 7.467E-05 11J TB-A Turbine Building 5109 12,165 CABLE 6.215E+07 1.037E-02 1 4.253E-05 1.971E-05 11K TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 11L TB-A Turbine Building 16986 12,165 CABLE 2.066E+08 3.448E-02 1 1.414E-04 6.552E-05 12A TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 12B TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 12C TB-A Turbine Building 10929 12,165 CABLE 1.330E+08 2.219E-02 1 9.097E-05 4.216E-05 12D TB-A Turbine Building 1234 12,165 CABLE 1.501E+07 2.505E-03 1 1.027E-05 4.760E-06 12E TB-A Turbine Building 48366 12,165 CABLE 5.884E+08 9.819E-02 1 4.026E-04 1.866E-04 12F TB-A Turbine Building 29655 12,165 CABLE 3.608E+08 6.021E-02 1 2.468E-04 1.144E-04

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 154 of 169 Bin 12 Self- Bin 18 Ignition Location Ignited Junction Fire Fire Quantity Cable Load Source Weighting Generic Plant Location Btu/Unit Comments Cable Fire Box Fire Zone Comp (lbs) (Btu) Weighting Factor, Zone Fire Zone Fire Factor, WIS,J WL Frequency Frequency 13A TB-A Turbine Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 13B NCS Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 13C TB-A Plant-Wide Components 10711 12,165 CABLE 1.303E+08 2.175E-02 1 8.916E-05 4.132E-05 120,00 CABLE(IN CUBIC TB-A Plant-Wide Components 2 2.400E+05 4.005E-05 1 1.642E-07 7.610E-08 13D 0 FEET) 14A DG-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 14B DG-B Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 14C DG-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 14D DG-B Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 15 TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 16 TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 17 TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 18A TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 18B TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 18C TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 18D TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 18E TB-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 19A OB Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 19B OB Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 19C OB Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 20A IS-A Plant-Wide Components 395 12,165 CABLE 4.805E+06 8.019E-04 1 3.288E-06 1.524E-06 20B IS-A Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 21A RW Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 21B RW Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 21C RW Plant-Wide Components 500 12,165 CABLE 6.083E+06 1.015E-03 1 4.162E-06 1.929E-06 21D RW Plant-Wide Components 9190 12,165 CABLE 1.118E+08 1.866E-02 1 7.650E-05 3.545E-05 22A ARW Plant-Wide Components 1708 12,165 CABLE 2.078E+07 3.468E-03 1 1.422E-05 6.588E-06 22B ARW Plant-Wide Components 2690 12,165 CABLE 3.272E+07 5.461E-03 1 2.239E-05 1.038E-05 22C ARW Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 23A YD Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 23B YD Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 23C YD Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 24 MPF Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 155 of 169 Bin 12 Self- Bin 18 Ignition Location Ignited Junction Fire Fire Quantity Cable Load Source Weighting Generic Plant Location Btu/Unit Comments Cable Fire Box Fire Zone Comp (lbs) (Btu) Weighting Factor, Zone Fire Zone Fire Factor, WIS,J WL Frequency Frequency 25 OG Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 26 OWC Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 CM CM Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 DW DW Control/Auxiliary/Reactor Building 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 YD YD Plant-Wide Components 0 0 N/A 0.000E+00 0.000E+00 1 0.000E+00 0.000E+00 Total Plant Cable Load (BTU) 5.992E+09 Cable Insulation from Combustible Loading Calculation Rev. 4.1 Assumption 1: Diesel Generator rooms binned into Plant-Wide Components for transients analysis Assumption 2: Battery rooms binned into Control/Aux/Rx Bldg for transients analysis Assumption 3: Control Room binned into Control/Aux/Rx Bldg for transients analysis

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 156 of 169 Table C Location Weighting Factors and Fire Influencing Factors Transient Cables General (welding &

Location Cable Load (welding &

Fire Fire Maintenance Occupancy Storage (nm,J,L + Transient cutting)

Generic Plant Location Weighting Ratio cutting)

Zone Comp (nm,J,L) (no,J,L) (ns,J,L) no,J,L + ns,J,L) Weighting Weighting Factor WL WCable,J Weighting Factor WGT,J,L Factor Factor WCF,J WWC,J,L 1A RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 1B RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 1C RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 1D RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 1E RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 1F RB-E Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 0.000E+00 0.000E+00 1G RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 2A-1 RB Cntrl/Aux/Rx Bldg. 1 1 3 1 5 1.109E-02 3.623E-03 3.849E-02 8.427E-03 2A-2 RB Cntrl/Aux/Rx Bldg. 1 10 3 1 14 3.104E-02 3.623E-02 7.698E-02 1.685E-01 2A-3 RB Cntrl/Aux/Rx Bldg. 1 10 3 1 14 3.104E-02 3.623E-02 3.849E-02 8.427E-02 2B RB Cntrl/Aux/Rx Bldg. 1 10 1 1 12 2.661E-02 3.623E-02 0.000E+00 0.000E+00 2C RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 7.045E-02 1.542E-01 2D RB Cntrl/Aux/Rx Bldg. 1 10 1 1 12 2.661E-02 3.623E-02 0.000E+00 0.000E+00 2E TB-C Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 0.000E+00 0.000E+00 3A RB-J Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 0.000E+00 0.000E+00 3B RB-K Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 0.000E+00 0.000E+00 3C RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 3.200E-02 7.006E-02 3D RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 1.234E-02 2.702E-02 3E-1 RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 1.489E-02 3.261E-02 3E-2 RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 7.446E-03 1.630E-02 4A RB Cntrl/Aux/Rx Bldg. 1 10 3 1 14 3.104E-02 3.623E-02 2.177E-02 4.767E-02 4B RB Cntrl/Aux/Rx Bldg. 1 10 1 3 14 3.104E-02 3.623E-02 0.000E+00 0.000E+00 4C RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 3.486E-02 7.633E-02 4D RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 8.090E-03 1.771E-02 5A RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 1.190E-02 2.605E-02 5B RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 6.693E-02 1.465E-01 6 RB Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 7A CB-A Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 7B CB-A Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 3.761E-05 2.470E-05 8A CB-D Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 2.483E-02 5.437E-03 8B CB-C Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 157 of 169 Transient Cables General (welding &

Location Cable Load (welding &

Fire Fire Maintenance Occupancy Storage (nm,J,L + Transient cutting)

Generic Plant Location Weighting Ratio cutting)

Zone Comp (nm,J,L) (no,J,L) (ns,J,L) no,J,L + ns,J,L) Weighting Weighting Factor WL WCable,J Weighting Factor WGT,J,L Factor Factor WCF,J WWC,J,L 8C CB-A Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 0.000E+00 0.000E+00 8D CB-A Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 1.855E-04 1.218E-04 8E CB-A-1 Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 3.761E-04 2.470E-04 8F CB-B Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 3.761E-04 2.470E-04 8G CB-B Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 0.000E+00 0.000E+00 8H CB-A-1 Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 0.000E+00 0.000E+00 9A CB-D Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 5.026E-01 1.100E-01 9B CB-D Cntrl/Aux/Rx Bldg. 1 1 1 1 3 6.652E-03 3.623E-03 2.997E-02 6.563E-03 10A CB-D Cntrl/Aux/Rx Bldg. 1 3 1 1 5 1.109E-02 1.087E-02 0.000E+00 0.000E+00 10B CB-D Cntrl/Aux/Rx Bldg. 1 1 10 1 12 2.661E-02 3.623E-03 6.991E-03 1.531E-03 11A TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 6.518E-03 7.053E-03 11B TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 0.000E+00 0.000E+00 11C TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 1.710E-01 1.850E-01 11D TB-A Turbine Building 1 10 1 3 14 5.018E-02 5.848E-02 2.482E-02 2.686E-02 11E TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 0.000E+00 0.000E+00 11F TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 8.723E-02 9.439E-02 11G TB-A Turbine Building 1 10 1 3 14 5.018E-02 5.848E-02 5.700E-02 6.168E-02 11H TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 9.610E-02 1.040E-01 11J TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 2.536E-02 2.744E-02 11K TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 0.000E+00 0.000E+00 11L TB-A Turbine Building 1 1 1 1 3 1.075E-02 5.848E-03 8.432E-02 9.124E-03 12A TB-A Turbine Building 1 10 1 3 14 5.018E-02 5.848E-02 0.000E+00 0.000E+00 12B TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 0.000E+00 0.000E+00 12C TB-A Turbine Building 1 10 1 3 14 5.018E-02 5.848E-02 5.425E-02 5.871E-02 12D TB-A Turbine Building 1 10 3 3 16 5.735E-02 5.848E-02 6.125E-03 6.629E-03 12E TB-A Turbine Building 1 10 1 3 14 5.018E-02 5.848E-02 2.401E-01 2.598E-01 12F TB-A Turbine Building 1 10 3 10 23 8.244E-02 5.848E-02 1.472E-01 1.593E-01 13A TB-A Turbine Building 1 10 3 10 23 8.244E-02 5.848E-02 0.000E+00 0.000E+00 13B NCS Cntrl/Aux/Rx Bldg. 1 10 3 3 16 3.548E-02 3.623E-02 0.000E+00 0.000E+00 13C TB-A Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 4.248E-01 4.298E-01 13D TB-A Plant-Wide Components 1 1 3 3 7 1.486E-02 4.274E-03 7.825E-04 7.917E-05 14A DG-A Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 14B DG-B Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 158 of 169 Transient Cables General (welding &

Location Cable Load (welding &

Fire Fire Maintenance Occupancy Storage (nm,J,L + Transient cutting)

Generic Plant Location Weighting Ratio cutting)

Zone Comp (nm,J,L) (no,J,L) (ns,J,L) no,J,L + ns,J,L) Weighting Weighting Factor WL WCable,J Weighting Factor WGT,J,L Factor Factor WCF,J WWC,J,L 14C DG-A Plant-Wide Components 1 3 1 3 7 1.486E-02 1.282E-02 0.000E+00 0.000E+00 14D DG-B Plant-Wide Components 1 3 1 3 7 1.486E-02 1.282E-02 0.000E+00 0.000E+00 15 TB-A Plant-Wide Components 1 10 1 3 14 2.972E-02 4.274E-02 0.000E+00 0.000E+00 16 TB-A Plant-Wide Components 1 10 1 3 14 2.972E-02 4.274E-02 0.000E+00 0.000E+00 17 TB-A Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 18A TB-A Plant-Wide Components 1 10 3 10 23 4.883E-02 4.274E-02 0.000E+00 0.000E+00 18B TB-A Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 18C TB-A Plant-Wide Components 1 3 3 10 16 3.397E-02 1.282E-02 0.000E+00 0.000E+00 18D TB-A Plant-Wide Components 1 3 3 10 16 3.397E-02 1.282E-02 0.000E+00 0.000E+00 18E TB-A Plant-Wide Components 1 3 3 10 16 3.397E-02 1.282E-02 0.000E+00 0.000E+00 19A OB Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 19B OB Plant-Wide Components 1 1 10 10 21 4.459E-02 4.274E-03 0.000E+00 0.000E+00 19C OB Plant-Wide Components 1 1 3 3 7 1.486E-02 4.274E-03 0.000E+00 0.000E+00 20A IS-A Plant-Wide Components 1 3 3 3 9 1.911E-02 1.282E-02 1.567E-02 4.755E-03 20B IS-A Plant-Wide Components 1 3 3 3 9 1.911E-02 1.282E-02 0.000E+00 0.000E+00 21A RW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 21B RW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 21C RW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 1.983E-02 2.006E-02 21D RW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 3.645E-01 3.688E-01 22A ARW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 6.774E-02 6.854E-02 22B ARW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 1.067E-01 1.079E-01 22C ARW Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 23A YD Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 23B YD Plant-Wide Components 1 10 3 3 16 3.397E-02 4.274E-02 0.000E+00 0.000E+00 23C YD Plant-Wide Components 1 3 3 3 9 1.911E-02 1.282E-02 0.000E+00 0.000E+00 24 MPF Plant-Wide Components 1 10 3 10 23 4.883E-02 4.274E-02 0.000E+00 0.000E+00 25 OG Plant-Wide Components 1 10 1 3 14 2.972E-02 4.274E-02 0.000E+00 0.000E+00 26 OWC Plant-Wide Components 1 3 3 3 9 1.911E-02 1.282E-02 0.000E+00 0.000E+00 CM CM Plant-Wide Components 1 1 1 1 3 6.369E-03 4.274E-03 0.000E+00 0.000E+00 DW DW Cntrl/Aux/Rx Bldg. 1 0 0 0 0 0.000E+00 0.000E+00 0.000E+00 0.000E+00 YD YD Plant-Wide Components 1 3 1 3 7 1.486E-02 1.282E-02 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 159 of 169 Assumption 1: Diesel Generator rooms binned into Plant-Wide Components for transients analysis Assumption 2: Battery rooms binned into Control/Aux/Rx Bldg for transients analysis Assumption 3: Control Room binned into Control/Aux/Rx Bldg for transients analysis Assumption 4: Yard areas binned into Plant-Wide Components for transients analysis

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 160 of 169 Table C Transient Ignition Frequencies Cntrl/ Aux/

Cntrl/ Aux/ Plant-Rx Bldg Cntrl/ Aux/ Plant-Wide Turb Bldg Turb Bldg Rx Bldg Wide Plant- Total Fire Transient Rx Bldg Cable Fire Cable Transient Turb Bldg Fire Fire Cables Fire Transient Wide Zone Generic Plant Location Fire Transient (welding & (welding & (welding Transient Zone Comp (welding & (welding Transient Transient (welding & Fire cutting) cutting) & cutting) (Bin 37) cutting) & cutting) (Bin 25) Freq cutting) (Bin 7) (Bin 11) (Bin 31) (Bin 36)

(Bin 5) (Bin 24)

(Bin 6) 1A RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 1B RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 1C RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 1D RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 1E RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 1F RB-E Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-05 2.594E-05 6.109E-05 1G RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 2A-1 RB Cntrl/Aux/Rx Bldg. 1.348E-05 3.514E-05 4.324E-05 9.187E-05 2A-2 RB Cntrl/Aux/Rx Bldg. 2.697E-04 3.514E-04 1.211E-04 7.422E-04 2A-3 RB Cntrl/Aux/Rx Bldg. 1.348E-04 3.514E-04 1.211E-04 6.073E-04 2B RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.038E-04 4.552E-04 2C RB Cntrl/Aux/Rx Bldg. 2.468E-04 3.514E-04 1.384E-04 7.366E-04 2D RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.038E-04 4.552E-04 2E TB-C Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-05 2.594E-05 6.109E-05 3A RB-J Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-05 2.594E-05 6.109E-05 3B RB-K Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-05 2.594E-05 6.109E-05 3C RB Cntrl/Aux/Rx Bldg. 1.121E-04 3.514E-04 1.384E-04 6.019E-04 3D RB Cntrl/Aux/Rx Bldg. 4.324E-05 3.514E-04 1.384E-04 5.330E-04 3E-1 RB Cntrl/Aux/Rx Bldg. 5.217E-05 3.514E-04 1.384E-04 5.420E-04 3E-2 RB Cntrl/Aux/Rx Bldg. 2.609E-05 3.514E-04 1.384E-04 5.159E-04 4A RB Cntrl/Aux/Rx Bldg. 7.627E-05 3.514E-04 1.211E-04 5.488E-04 4B RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.211E-04 4.725E-04 4C RB Cntrl/Aux/Rx Bldg. 1.221E-04 3.514E-04 1.384E-04 6.119E-04 4D RB Cntrl/Aux/Rx Bldg. 2.834E-05 3.514E-04 1.384E-04 5.181E-04 5A RB Cntrl/Aux/Rx Bldg. 4.167E-05 3.514E-04 1.384E-04 5.315E-04 5B RB Cntrl/Aux/Rx Bldg. 2.345E-04 3.514E-04 1.384E-04 7.243E-04 6 RB Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 7A CB-A Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 7B CB-A Cntrl/Aux/Rx Bldg. 3.952E-08 1.054E-04 4.324E-05 1.487E-04 8A CB-D Cntrl/Aux/Rx Bldg. 8.699E-06 3.514E-05 2.594E-05 6.979E-05

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 161 of 169 Cntrl/ Aux/

Cntrl/ Aux/ Plant-Rx Bldg Cntrl/ Aux/ Plant-Wide Turb Bldg Turb Bldg Rx Bldg Wide Plant- Total Fire Transient Rx Bldg Cable Fire Cable Transient Turb Bldg Fire Fire Cables Fire Transient Wide Zone Generic Plant Location Fire Transient (welding & (welding & (welding Transient Zone Comp (welding & (welding Transient Transient (welding & Fire cutting) cutting) & cutting) (Bin 37) cutting) & cutting) (Bin 25) Freq cutting) (Bin 7) (Bin 11) (Bin 31) (Bin 36)

(Bin 5) (Bin 24)

(Bin 6) 8B CB-C Cntrl/Aux/Rx Bldg. 0.000E+00 1.054E-04 4.324E-05 1.487E-04 8C CB-A Cntrl/Aux/Rx Bldg. 0.000E+00 1.054E-04 4.324E-05 1.487E-04 8D CB-A Cntrl/Aux/Rx Bldg. 1.949E-07 1.054E-04 4.324E-05 1.489E-04 8E CB-A-1 Cntrl/Aux/Rx Bldg. 3.952E-07 1.054E-04 4.324E-05 1.491E-04 8F CB-B Cntrl/Aux/Rx Bldg. 3.952E-07 1.054E-04 4.324E-05 1.491E-04 8G CB-B Cntrl/Aux/Rx Bldg. 0.000E+00 1.054E-04 4.324E-05 1.487E-04 8H CB-A-1 Cntrl/Aux/Rx Bldg. 0.000E+00 1.054E-04 4.324E-05 1.487E-04 9A CB-D Cntrl/Aux/Rx Bldg. 1.761E-04 3.514E-05 2.594E-05 2.372E-04 9B CB-D Cntrl/Aux/Rx Bldg. 1.050E-05 3.514E-05 2.594E-05 7.159E-05 10A CB-D Cntrl/Aux/Rx Bldg. 0.000E+00 1.054E-04 4.324E-05 1.487E-04 10B CB-D Cntrl/Aux/Rx Bldg. 2.449E-06 3.514E-05 1.038E-04 1.414E-04 11A TB-A Turbine Building 1.128E-05 4.795E-04 4.244E-04 9.152E-04 11B TB-A Turbine Building 0.000E+00 4.795E-04 4.244E-04 9.039E-04 11C TB-A Turbine Building 2.961E-04 4.795E-04 4.244E-04 1.200E-03 11D TB-A Turbine Building 4.297E-05 4.795E-04 3.713E-04 8.938E-04 11E TB-A Turbine Building 0.000E+00 4.795E-04 4.244E-04 9.039E-04 11F TB-A Turbine Building 1.510E-04 4.795E-04 4.244E-04 1.055E-03 11G TB-A Turbine Building 9.868E-05 4.795E-04 3.713E-04 9.495E-04 11H TB-A Turbine Building 1.664E-04 4.795E-04 4.244E-04 1.070E-03 11J TB-A Turbine Building 4.391E-05 4.795E-04 4.244E-04 9.478E-04 11K TB-A Turbine Building 0.000E+00 4.795E-04 4.244E-04 9.039E-04 11L TB-A Turbine Building 1.460E-05 4.795E-05 7.957E-05 1.421E-04 12A TB-A Turbine Building 0.000E+00 4.795E-04 3.713E-04 8.509E-04 12B TB-A Turbine Building 0.000E+00 4.795E-04 4.244E-04 9.039E-04 12C TB-A Turbine Building 9.393E-05 4.795E-04 3.713E-04 9.448E-04 12D TB-A Turbine Building 1.061E-05 4.795E-04 4.244E-04 9.145E-04 12E TB-A Turbine Building 4.157E-04 4.795E-04 3.713E-04 1.267E-03 12F TB-A Turbine Building 2.549E-04 4.795E-04 6.100E-04 1.344E-03 13A TB-A Turbine Building 0.000E+00 4.795E-04 6.100E-04 1.090E-03 13B NCS Cntrl/Aux/Rx Bldg. 0.000E+00 3.514E-04 1.384E-04 4.898E-04 13C TB-A Plant-Wide Components 8.596E-04 2.094E-04 3.363E-04 1.405E-03 13D TB-A Plant-Wide Components 1.583E-07 2.094E-05 1.471E-04 1.682E-04

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 162 of 169 Cntrl/ Aux/

Cntrl/ Aux/ Plant-Rx Bldg Cntrl/ Aux/ Plant-Wide Turb Bldg Turb Bldg Rx Bldg Wide Plant- Total Fire Transient Rx Bldg Cable Fire Cable Transient Turb Bldg Fire Fire Cables Fire Transient Wide Zone Generic Plant Location Fire Transient (welding & (welding & (welding Transient Zone Comp (welding & (welding Transient Transient (welding & Fire cutting) cutting) & cutting) (Bin 37) cutting) & cutting) (Bin 25) Freq cutting) (Bin 7) (Bin 11) (Bin 31) (Bin 36)

(Bin 5) (Bin 24)

(Bin 6) 14A DG-A Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 14B DG-B Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 14C DG-A Plant-Wide Components 0.000E+00 6.282E-05 1.471E-04 2.100E-04 14D DG-B Plant-Wide Components 0.000E+00 6.282E-05 1.471E-04 2.100E-04 15 TB-A Plant-Wide Components 0.000E+00 2.094E-04 2.943E-04 5.037E-04 16 TB-A Plant-Wide Components 0.000E+00 2.094E-04 2.943E-04 5.037E-04 17 TB-A Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 18A TB-A Plant-Wide Components 0.000E+00 2.094E-04 4.834E-04 6.928E-04 18B TB-A Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 18C TB-A Plant-Wide Components 0.000E+00 6.282E-05 3.363E-04 3.991E-04 18D TB-A Plant-Wide Components 0.000E+00 6.282E-05 3.363E-04 3.991E-04 18E TB-A Plant-Wide Components 0.000E+00 6.282E-05 3.363E-04 3.991E-04 19A OB Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 19B OB Plant-Wide Components 0.000E+00 2.094E-05 4.414E-04 4.623E-04 19C OB Plant-Wide Components 0.000E+00 2.094E-05 1.471E-04 1.681E-04 20A IS-A Plant-Wide Components 9.511E-06 6.282E-05 1.892E-04 2.615E-04 20B IS-A Plant-Wide Components 0.000E+00 6.282E-05 1.892E-04 2.520E-04 21A RW Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 21B RW Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 21C RW Plant-Wide Components 4.013E-05 2.094E-04 3.363E-04 5.858E-04 21D RW Plant-Wide Components 7.376E-04 2.094E-04 3.363E-04 1.283E-03 22A ARW Plant-Wide Components 1.371E-04 2.094E-04 3.363E-04 6.828E-04 22B ARW Plant-Wide Components 2.159E-04 2.094E-04 3.363E-04 7.616E-04 22C ARW Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 23A YD Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 23B YD Plant-Wide Components 0.000E+00 2.094E-04 3.363E-04 5.457E-04 23C YD Plant-Wide Components 0.000E+00 6.282E-05 1.892E-04 2.520E-04 24 MPF Plant-Wide Components 0.000E+00 2.094E-04 4.834E-04 6.928E-04 25 OG Plant-Wide Components 0.000E+00 2.094E-04 2.943E-04 5.037E-04 26 OWC Plant-Wide Components 0.000E+00 6.282E-05 1.892E-04 2.520E-04 CM CM Plant-Wide Components 0.000E+00 2.094E-05 6.306E-05 8.400E-05 DW DW Cntrl/Aux/Rx Bldg. 0.000E+00 0.000E+00 0.000E+00 0.000E+00

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 163 of 169 Cntrl/ Aux/

Cntrl/ Aux/ Plant-Rx Bldg Cntrl/ Aux/ Plant-Wide Turb Bldg Turb Bldg Rx Bldg Wide Plant- Total Fire Transient Rx Bldg Cable Fire Cable Transient Turb Bldg Fire Fire Cables Fire Transient Wide Zone Generic Plant Location Fire Transient (welding & (welding & (welding Transient Zone Comp (welding & (welding Transient Transient (welding & Fire cutting) cutting) & cutting) (Bin 37) cutting) & cutting) (Bin 25) Freq cutting) (Bin 7) (Bin 11) (Bin 31) (Bin 36)

(Bin 5) (Bin 24)

(Bin 6)

YD YD Plant-Wide Components 0.000E+00 6.282E-05 1.471E-04 2.100E-04 Assumption 1: Diesel Generator rooms binned into Plant-Wide Components for transients analysis Assumption 2: Battery rooms binned into Control/Aux/Rx Bldg for transients analysis Assumption 3: Control Room binned into Control/Aux/Rx Bldg for transients analysis Assumption 4: Yard areas binned into Plant-Wide Components for transients analysis

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 164 of 169 Attachment D Fire Events

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 165 of 169 Table D Fire Event Assessment Potentially Inclusion in challenging, not Date of analysis Screening Comment, BIN CAP ID No. Remarks Apparent Cause Information challenging, BIN #

Event (screened/not Basis description undetermined screened)

(Note 1)

Arcing between a conductor and the grounded metal shielding occurred. The circuit was not Damage was protected by a ground fault limited to a CR-2006- Fire involving electrical heat trace for A 1 11/11/06 protection device. The affected not challenging screened small length N/A N/A 09006 SLC pump.

wiring was about 8 years old, of heat trace and was in an area that could wire.

be inadvertently struck by foot traffic, carried items, etc.

Root Cause contributes ignition due to improper bend radius in Electrical fire on in conduit associated CR-2006- cable inside conduit. Cable potentially Plant-Wide Components 2 3/20/06 with 12.5 kV to Ionics skid outside not screened 12 2152 failed and shorted to conduit challenging Cable Run Water Treatment Plant causing an arc event. Fire was due to cable insulation burning.

Fire would have been limited to Hot slag from cutting and welding CR-2006- initial 3 1/9/06 ignited a small piece of tape inside a No formal Cause Evaluation not challenging screened N/A N/A 01589 combustible if metal tank.

fire watch were not involved.

Fire would have been limited to Hot slag from cutting and weld ignited a CR-2006- initial 4 11/28/2005 small piece of tape used to secure No formal Cause Evaluation not challenging screened N/A N/A 8653 combustible if welding blankets inplace.

fire watch were not involved.

Auto trip of component Admin Bldg Penthouse fire, duct heater pending, appears to be related removed electric contactor overheated because CR 2005- to inadequate corrective action power and 5 5/25/05 it was undersized, previous CAP item not challenging screened N/A N/A 03967 of a previously identified design stopped fire.

on 2nd heater previously identified as deficiency Damage incorrectly designed limited to the component.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 166 of 169 Potentially Inclusion in challenging, not Date of analysis Screening Comment, BIN CAP ID No. Remarks Apparent Cause Information challenging, BIN #

Event (screened/not Basis description undetermined screened)

(Note 1) motor lead connection failure, PM'd in 2002 and scheduled for March 2005 but cancelled as a CR 2005- result of PMO, existing PM's potentially Plant-Wide Components 6 4/27/05 Screen Wash pump motor failure not screened 21 03281 included thermography, MCE, challenging Pumps oil level (failed to predict failure),

new PM's are being created to monitor on-line current snapshot assessment performed common cause evaluation, concluded that hot work in Water Treatment, spark failure to adequately contain Plant-Wide Components CR 2005- potentially 7 4/1/05 caused HEPA filter to ignite, entered spark due to improper hot work not screened 24 Transient Fires Caused 02663 challenging 5.4FIRE containment, and failure to by Welding and Cutting consider spurious fire alarms or potential to activate suppression during hot work cause attributed to inappropriate use of open fixture HID lights over area that contains CR 2005- CR 2005-02295 MPF fire due to failed combustibles, contributing potentially Plant-Wide Components 8 3/14/05 not screened 25 02295 metal halide lamp which ignited trash causes included poor challenging Transients housekeeping and deficiency with respect to non-nuclear safety standards and OE motor failure, original installation, existing PM's included vibration monitoring, CR 2005- thermography, and oil level, potentially Plant-Wide Components 9 1/30/05 B RPS MG Set motor fire not screened 22 00980 PMO will add on-line and off- challenging RPS MG sets line testing , cause was unidentified age-related degradation of motor insulation Plant shut CR 2005-10 1/27/05 GFCI failed in heater bay Evaluated under CR 2005-2663 not challenging screened down at the N/A N/A 00874 time.

Plant shut CR 2005- FME bladders near condenser, fire 11 1/27/05 No formal Cause Evaluation not challenging screened down at the N/A N/A 00843 watch extinguished time.

Plant shut CR 2005- FME bladder in heater bay during hot 12 1/24/05 No formal Cause Evaluation not challenging screened down at the N/A N/A 00710 work time.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 167 of 169 Potentially Inclusion in challenging, not Date of analysis Screening Comment, BIN CAP ID No. Remarks Apparent Cause Information challenging, BIN #

Event (screened/not Basis description undetermined screened)

(Note 1)

Aux Steam Boiler 12.5kV disconnect Check that this is a during indicating light replacement, Fire panel fire Panel fire in Notification potentially 13 12/13/03 Brigade leader was dispatched to assist No formal Cause Evaluation not screened 15 Aux Boiler Room, panel 10285764 challenging with the event. After power removed for one of the aux fire self extinguished. boilers.. What panel?

A layer of dust possibly generated by recent crop harvest settled on ceramic insulators. Normally harmless, but a light mist of fog settled on the isulators dampening them. The moist dust on the insulators became capable of transporting current. A charge began to build on the insulator stack where it attaches to the wooden cross member.

This buildup is known as corona effect.

The wooden cross member also had causes were failure to properly the same moist dust as the insulators Fire outdoors.

ground insulator strings on and since moist dust isn't a good No plant SCR 2003- wooden cross arms, and missed 14 10/28/03 conductor the natural resistance ignited not challenging screened transient or N/A N/A 1844 opportunity to evaluate 1997 the dust and with the assistance of a potential for Booneville line fire, contributing midwestern wind the cross member transient.

cause was natural phenomenon ignited also. - Dr. Randall Noon Due to the close proximity to the 345KV lines the fire was not attacked by the fire department until the power was secured. When this finally occurred the cross member failed and the portion that fell was extinguished with a dry chemical extinguisher. The remaining fire self extinguished on the remants of the cross member still attached to the pole.

TG Lube Oil - Fire was initially controlled and extinguished at 12:39, cause attributed to inappropriate but reflashed again at 12:54, was procedure change that allowed extinguished at 12:59 and reflashed both vapor extractors to be again at 13:06 and was extinguished removed from service, and SCR 2003- again, but formal declaration of fire potentially Turbine Building 15 10/16/03 inadequate engineering work not screened 35 1808 being extinguished did not occur till challenging T/G Oil practice associated with approximately 13:36. The actual verifying design requirements, amount of time a visible flame and contributing cause was design smoke generation were observable in of aux vapor extractor my estimates were less than 30 minutes.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 168 of 169 Potentially Inclusion in challenging, not Date of analysis Screening Comment, BIN CAP ID No. Remarks Apparent Cause Information challenging, BIN #

Event (screened/not Basis description undetermined screened)

(Note 1)

Notification smoke from Control Room seismic potentially Plant-Wide Components 16 3/28/03 No formal Cause Evaluation not screened 15 10236986 panel challenging Electrical Cabinets Smoke Notification heater failure in simulator duct, repaired caused by 17 12/31/02 No formal Cause Evaluation not challenging screened N/A N/A 10217326 by vendor burn off of dust Fire outdoors.

Not near any plant Notification Access Road, portable generator wood equipment.

18 10/31/02 No formal Cause Evaluation not challenging screened N/A N/A 10204456 cover No plant transient or potential for transient.

Fire outdoors.

Not near any plant DD equipment.

19 10/26/02 fire pad grass fire No formal Cause Evaluation not challenging screened N/A N/A 10203379 No plant transient or potential for transient.

Control/Auxiliary/Reactor RCR 2002- cause was cramped work area potentially Building 20 8/23/02 fire blanket in MPF during torch cutting not screened 6 1855 during hot work challenging Transient Fires Caused by Welding and Cutting Plant shut RCR 2001- rag ignited during hot work in Torus 21 11/30/01 No formal Cause Evaluation not challenging screened down at the N/A N/A 1423 basement time.

cause was failure to remove all combustibles under hot work Plant shut RCR 2001- rag ignited during hot work in Torus 22 11/27/01 area, and failure of fire watch to not challenging screened down at the N/A N/A 1407 basement sweep the area thirty minutes time.

after hot work completed Plant shut RCR 2001- rag ignited during hot work in Torus 23 11/25/01 Tied to 2001-1407 not challenging screened down at the N/A N/A 5316 basement time.

Task 7.6 Fire Ignition Frequencies Cooper Nuclear Station NFPA 805 Transition EPM Calculation 1906-07-06 Revision No. 0 Page 169 of 169 Potentially Inclusion in challenging, not Date of analysis Screening Comment, BIN CAP ID No. Remarks Apparent Cause Information challenging, BIN #

Event (screened/not Basis description undetermined screened)

(Note 1)

RCR 2001- Internal power supply, faulty potentially Plant-Wide Components 24 7/10/01 chem lab power supply not screened 23 0670 component failure. challenging Transformers cause was failure to communicate the need for switchyard maintenance that is more rigorous than NPPD T&D Transformer Yard SCR 2001- potentially 25 6/25/01 SU Transformer center phase PT failed standards, corrective action not screened 27 Transformer-0567 challenging included PM's to replace Catastrophic

'critical' oil filled PT's and CT's, and to perform inspection and thermography cause was scale that was Plant shut RCR 2000- hot work, hot particle sucked into 26 3/15/00 smoldering, not considered not challenging screened down at the N/A N/A 0233 vacuum cleaner combustible time.

On September 17, 1999 the station experienced a hydrogen burn within the off gas systems. The burn was cause involved failure to contained in a sump that receives recognize hydrogen in Z sump condensate inputs from the elevated during MP 97-100, and release point, offgas filter pit drains, inadequate procedural guidance offgas building floor drains, 48 inch that allowed AOG to connect to Plant shut SCR 99-0656 27 9/17/99 holdup pipe, mechanical vacuum Z-sump, contributing factors not challenging screened down at the N/A N/A pumps, and offgas dilution fans. The included infrequent operation time.

burn occurred after a backup sump (startup of AOG with 2nd set of pump was started by operations. There SJAE's in service) and were no injuries or abnormal damage inconsistent procedural from the event. The station was guidance preparing for restart on September 23, 1999 Fire outdoors.

cause was failure to conform to Not near any management expectation plant SCBA in C-van on fire pad exploded, related to hot work, and equipment.

SCR 99-0445 28 6/29/99 due to caulking dripping during fire not challenging screened N/A N/A Procedure 0.39 regarding areas No plant training exempted from hot work transient or requirements potential for transient.

Note 1: NUREG/CR-6850, Appendix C