ML15239A083
| ML15239A083 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 05/26/2015 |
| From: | Thompson R Tennessee Valley Authority |
| To: | Steve Wyman Japan Lessons-Learned Division |
| References | |
| Download: ML15239A083 (41) | |
Text
1 NRR-PMDAPEm Resource From:
Thompson, Russell R [rrthompson@tva.gov]
Sent:
Tuesday, May 26, 2015 11:13 AM To:
Wyman, Stephen
Subject:
FW: Advanced Response - WBN ESEP Clarifying Questions Attachments:
Advanced Response - WBN ESEP Clarifying Questions.docx; Attachment - Elevation Reference.docx I meant to include you on the WBN distribution too.
Russell Thompson Corporate Nuclear Licensing W: 423/751-2567 C: 423/593-1831 This electronic message transmission contains information which may be TVA SENSITIVE, TVA RESTRICTED or TVA CONFIDENTIAL.
Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message.
From: Thompson, Russell R Sent: Tuesday, May 26, 2015 10:57 AM To: 'DiFrancesco, Nicholas'
Subject:
Advanced Response - WBN ESEP Clarifying Questions Per our conversation, attached are the advanced responses to the clarifying questions on the WBN ESEP.
The formal response will be submitted in the near future.
Please call me if you have any questions.
Russell Thompson Corporate Nuclear Licensing W: 423/751-2567 C: 423/593-1831 This electronic message transmission contains information which may be TVA SENSITIVE, TVA RESTRICTED or TVA CONFIDENTIAL.
Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message.
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Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 1 of 6 Clarifying Question 1 In the March 2014, Seismic Hazard and Screening Report for WBN, the licensee stated that the Safe Shutdown Earthquake (SSE) control point is at an elevation of 664 ft. mean sea level, while in the ESEP report the licensee stated that the SSE control point is at an elevation of 684 ft.
Please clarify the SSE control point elevation and discuss the impact of this elevation on the analyses provided in the ESEP report.
Response
The SSE control point elevation is 664 ft mean sea level as stated in the March 2014 Seismic Hazard and Screening Report for WBN. The ESEP statement that the SSE control point is at an elevation of 684 ft is a typographical error. The ESEP should state that the SSE control point is at an elevation of 664 ft, consistent with the March 2014 Seismic Hazard and Screening Report.
The typographical error in SSE control point elevation does not impact the analyses provided in the ESEP report.
Clarifying Question 2 The ESEP report does not provide elevations for the expedited seismic equipment list (ESEL) items and their mounting heights above grade level. Electric Power Research Institute (EPRI) NP-6041-SL states that elements shall be mounted less than 40 feet above grade level, otherwise, care shall be excised in using this guidance.
Please provide the elevations for the ESEL items and their mounting heights above grade level, and clarify how these ESEL items are evaluated based on this stipulation regarding 40 feet in the EPRI guidance.
Response
The attached table provides the elevations for the ESEL items. At WBN grade level is 728 ft (FSAR 1.2.1.4 and 2.4).
The ESEL items were evaluated in accordance with the EPRI NP-6041-SL guidance and, as required by EPRI NP-6041, care was exercised in using the guidance for components mounted more than 40 feet above grade. For additional detail, please refer to Clarifying Question 4A.
Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 2 of 6 Clarifying Question3 The ESEP report appears to contain some inconsistencies between the choice of the review level earthquake (RLE) and demand assessment. ESEP Section 5.2 states that the in-structure response spectra (ISRS) used in the updated individual plant examination of external events (IPEEE) are based on the NUREG-0098 median shape for rock with a peak ground acceleration (PGA) of 0.5g. ESEP Section 6.1 refers to the 1998 seismic margin assessment (SMA) of Unit 1 and the 2014 IPEEE Report for Unit 2 and states that seismic demand was the IPEEE [RLE] for SMA (median NUREG/CR-0098 ground response spectrum for rock anchored to 0.3g PGA).
Please clarify these two references to the demand. The NRC staff understands that the IPEEE process results that were used in compiling and assessing the ESEL were based on a demand spectrum anchored at 0.3g and not 0.5g.
Response
The IPEEE process results that were used in compiling and assessing the ESEL were based on a demand spectrum anchored at 0.5g. TVAs Letter CNL-15-027 of March 20, 2015 submitted theIPEEE Final Report process results based on a demand spectrum anchored at 0.5g.
Clarifying Question 4 The ESEP report discusses that following the submittal of the IPEEE Reports, the high confidence of low probability of failure (HCLPF) capacity was updated using a more accurate approach that led to a minimum HCLPF of 0.5g for components of the IPEEE.
(A)Please discuss how the removal of conservatism affected the screening of IPEEE components since the submittal of the IPEEE Reports. (B)Clarify whether any items appearing in the ESEL were affected by the updated IPEEE HCLPF and were screened out as a result. (C)Please clarify which version of the IPEEE was used for the screening and presentation of HCLPF values.
Response4(A)
TVAs March 20, 2015 submittal to the NRC (Letter CNL-15-027, WBN2 IPEEE Final Report) provides a detailed discussion of how the removal of conservatism affected the screening of IPEEE components. In all instances the approaches utilized were consistent with the guidance in EPRI NP-6041. Following is a discussion of highlights from the submittal.
A key part of the more accurate approach is the specification of seismic demand. The Set B+C new design/modification spectra were used in the WBN1 IPEEE program (1998, ref.
- 11) as the basis for defining seismic demand for equipment on the SSEL. Appropriate scale factors were used to boost those amplified response spectra (ARS) to the demand level of the RLE. These scale factors were also used for the WBN2 IPEEE Design Report of 2010
Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 3 of 6 Response 4(A) (continued)
(submitted to NRC by letter dated April 30, 2010 - see NRC Adams document ML111960300) also for a screening level of 0.30g.
However, it was determined that the use of the enveloped WBN B+C design ARS as the basis for scaling of seismic demand loading in HCLPF capacity calculations introduces excessive conservatism.
As part of the more detailed analysis performed for the HCLPF capacity goal of 0.5g, median centered response analysis was utilized to determine the in-structure response spectra (ISRS) seismic demand for the WBN2 IPEEE Final Report, TVAs March 20, 2015 submittal to the NRC (Letter CNL-15-027).
The EPRI SMA guidelines are based on use of median centered response spectra, and not conservative design response spectra. The use of scaled WBN Set B+C design spectra was conservative for screening at the 0.30g HCLPF level. However, as noted above, use of the same WBN ARS at a higher scaled HCLPF level of 0.5g is excessively conservative.
The walkdown screening evaluations were conducted in consideration of the more demanding EPRI NP-6041 0.50g screening level. Walkdown of items unique to WBN2 was performed. In addition a walkby was performed for common items that were previously addressed in the WBN1 program. No outlier configurations or seismic concerns were noted by the walkdown. The governing potential seismic proximity interactions that were identified and evaluated as acceptable by the Integrated Interaction Program (IIP) were revisited for the increased seismic demand associated with 0.50g RLE. In all cases, the IIP conclusions remained valid for the increased seismic demand and were assigned a HCLPF capacity of at least 0.50g.
As a result of the walkdown screening evaluations, the Seismic Review Team (SRT) concurred that the limiting HCLPF capacity components were as identified by the WBN1 IPEEE program, and these components became the focus of the HCLPF evaluations.
These WBN1 HCLPF capacity calculations were reviewed in detail, in light of the target 0.50g RLE for WBN2.
The components that had a HCLPF capacity less than 0.50g based on the WBN1 review and are on the ESEL include:
Component on ESEL and HCLPF < 0.5g WBN1 Review ESEL Item Number 6900V Shutdown Boards 23, 24, 200 480V Shutdown Board Transformers 57, 58, 59, 60 CCS Heat Exchangers 37, 38 480V RMOV Boards 49, 50, 51, 52 480V Control & Aux Boards 53, 54, 55, 56
Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 4 of 6 Response 4(A) (continued)
With only one exception, all of the as-installed components were found to have a HCLPF capacity greater than 0.50g. The exception was the 480V Shutdown Board Transformers.
After the more detailed analysis, these Transformers fell short of the 0.50g target, so a modification was designed and installed in order to increase the seismic HCLPF capacity above 0.50g. Without this modification, HCLPF capacity was 0.41g. The modification involved replacement of the eight (8) base connection bolts with higher strength capacity bolts, on all of the 480V Shutdown Board Transformers. This modification was completed for all six (6) WBN2 Shutdown Board Transformers and all 6 WBN1 Shutdown Board Transformers.
For the components that had a HCLPF capacity less than 0.50g based on the WBN1 review and are on the ESEL, the updated HCLPF seismic capabilities exceed the target screening value of 0.5g, as summarized in Table 2-3: WBN2 Updated HCLPF Seismic Capabilities in the March 20, 2015 WBN2 IPEEE submittal:
Component on ESEL HCLPF Failure Mode 6900V Shutdown Boards 0.531g Functionality 480V Shutdown Board Transformers 0.635g Functionality CCS Heat Exchangers 0.508g Anchorage 480V RMOV Boards 0.560g Structural Integrity 480V Control & Aux Boards 0.943g Structural Integrity However, the supporting calculation (ref. 12) for the WBN IPEEE HCLPF capacities hasbeen revised. For four of the components, the revised HCLPF is larger. For one of the components, the 480V Control & Aux Boards, the revised HCLPF is still larger than the 0.5g target but smaller than the value reported in Table 2-3. In summary, for all five components, the revised HCLPF is far in excess of the target screening value of 0.5g.
HCLPF from Revised Supporting Calculations Component on ESEL HCLPF Failure Mode 6900V Shutdown Boards 0.567g Functionality 480V Shutdown Board Transformers 0.854g Functionality CCS Heat Exchangers 0.575g Anchorage 480V RMOV Boards 0.690g Structural Integrity 480V Control & Aux Boards 0.890g Structural Integrity
Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 5 of 6 Response 4(A) (continued)
In addition to these more detailed HCLPF capacity evaluations, additional screening evaluations of equipment and systems for 0.50g RLE are required by the EPRI NP-6041 margins methodology and NUREG-1407. The additional screening evaluations pertinent to the ESEP are for active valves, heat exchangers and pressure vessels, and fans and air handlers. All items were screened as adequate for the 0.50g RLE.
Because of the HCLPF capacity evaluations performed for WBN2, TVAs March 20, 2015 submittal to the NRC concluded that the HCLPF capacity of WBN is >0.50g RLE, defined at rock outcrop per NUREG CR-0098 median shape rock spectrum.
Response 4(B)
In response to clarifying question 5, a column indicating IPEEE or ESEP has been added to Table B-1. If, for an item, the table indicates IPEEE and Screened and > 0.5, than the item was affected by the updated IPEEE and screened out as a result.
The response to clarifying question 4A lists the components that had a HCLPF capacity less than 0.50g based on the 1998 WBN U1 review and the 2010 WBN2 IPEEE Design Report and are on the ESEL. For these components the original table only indicated ESEL and Screened and > 0.5g meaning that the ESEP was taking credit for the IPEEE work that increased the components HCLPF to greater than 0.5g. For these components, the revised table now includes the IPEEE Failure Mode and HCLPF.
Response 4(C)
For items indicated as IPEEE in Table B-1, the version of the IPEEE submitted on March 20, 2015 was used for the screening and presentation of HCLPF values.
Clarifying Questions: Watts Bar - Expedited Seismic Evaluation Process Review Page 6 of 6 Clarifying Question 5 In listing the HCLPF values in Attachment B to the ESEP report for several ESEL items the value is not specified but identified as >0.5[g].
Please clarify and indicate on Table B-1 whether the items listed have been screened during the ESEP review or the IPEEE.
Response 5 To clarify Table B-1, a column indicating IPEEE or ESEP has been added.
If the table indicates IPEEE and Screened then the item was screened during the IPEEE review.
The response to clarifying question 4A lists the components that had a HCLPF capacity less than 0.50g based on the 1998 WBN1 and 2010 WBN2 reviews and are on the ESEL. For these components the original table only indicated ESEL and Screened and > 0.5g meaning that the ESEP was taking credit for the IPEEE work that increased the components HCLPFto greater than 0.5g. For these components, the revised table now includes the IPEEE Failure Mode and HCLPF.
ATTACHMENT B ESEP HCLPF VALUES AND FAILURE MODES TABULATION
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 1
WBN-1-PNL-099-R48-A Solid State Protection System Train A 708 IPEEE Screened
> 0.5 47W200-5 47W605-2 2
WBN-2-PNL-099-R50-B Solid State Protection System Train B 708 IPEEE Screened
> 0.5 3
WBN-2-PNL-099-R2-D Reactor Protection I Process System 708 IPEEE Screened
> 0.5 4
WBN-2-PNL-099-R48-A Solid State Protection System Train A 708 IPEEE Screened
> 0.5 5
WBN-1-PNL-099-R50-B Solid State Protection System Train B 708 IPEEE Screened
> 0.5 6
WBN-2-PNL-099-R6-E Reactor Protection II Process System 708 IPEEE Screened
> 0.5 7
WBN-1-PNL-275-R179-A ICCM System Train A CH 1 708 IPEEE Screened
> 0.5 8
WBN-2-PNL-275-R179-A Common Q PAMS Panel Train A 708 IPEEE Screened
> 0.5 9
WBN-1-PNL-275-R180-B ICCM System Train B CH 2 708 IPEEE Screened
> 0.5 10 WBN-2-PNL-275-R180-B Common Q PAMS Panel Train B 708 IPEEE Screened
> 0.5 11 WBN-2-HIC-068-396 RX HEAD VENT FLOW CONTROL 755 IPEEE Screened
> 0.5 47W605-1 M4 12 WBN-2-PNL-099-R46-A Solid State Protection System Train A 708 IPEEE Screened
> 0.5 47W200-5 47W605-2 13 WBN-2-PNL-099-R49-B Solid State Protection System Train B 708 IPEEE Screened
> 0.5 14 WBN-2-PNL-099-R6-E Reactor Protection II Process System 708 IPEEE Screened
> 0.5 15 WBN-1-ACUM-063-0001 SIS Accumulator Tank 1 716 IPEEE Screened
> 0.5 47W200-14
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 16 WBN-1-ACUM-063-0002 SIS Accumulator Tank 2 716 IPEEE Screened
> 0.5 17 WBN-1-ACUM-063-0003 SIS Accumulator Tank 3 716 IPEEE Screened
> 0.5 47W200-14 18 WBN-1-ACUM-063-0004 SIS Accumulator Tank 4 716 IPEEE Screened
> 0.5 19 WBN-0-BAT-236-0001-D 125 V Vital Battery I 772 IPEEE Screened
> 0.5 45N218 45W202 20 WBN-0-BAT-236-0002-E 125 V Vital Battery II 772 IPEEE Screened
> 0.5 21 WBN-0-BAT-236-0003-F 125 V Vital Battery III 772 IPEEE Screened
> 0.5 22 WBN-0-BAT-236-0004-G 125 V Vital Battery IV 772 IPEEE Screened
> 0.5 23 WBN-1-BD-211-A-A 6.9 KV Shutdown Board 1A-A 757 IPEEE Screened
> 0.5 45W204 24 WBN-2-BD-211-B-B 6.9 KV Shutdown Board 2B-B 757 IPEEE Screened
> 0.5 25 WBN-1-BD-212-A001-A 480V Shutdown Board 1A1-A 757 IPEEE Screened
> 0.5 26 WBN-2-BD-212-A001-A 480V Shutdown Board 2A1-A 757 IPEEE Screened
> 0.5 27 WBN-1-BD-212-A002-A 480V Shutdown Board 1A2-A 757 IPEEE Screened
> 0.5 28 WBN-2-BD-212-B002-B 480V Shutdown Board 2B2-B 757 IPEEE Screened
> 0.5 29 WBN-0-BD-236-0001-D 125V Vital Battery Board I 757 IPEEE Screened
> 0.5 30 WBN-0-BD-236-0002-E 125V Vital Battery Board II 757 IPEEE Screened
> 0.5 31 WBN-0-BD-236-0003-F 125V Vital Battery Board III 757 IPEEE Screened
> 0.5 32 WBN-0-BD-236-0004-G 125V Vital Battery Board IV 757 IPEEE Screened
> 0.5 33 WBN-0-CHGR-236-0001-D 125 V Vital Battery Charger I
772 IPEEE Screened
> 0.5 45W202 34 WBN-0-CHGR-236-0002/E 125 V Vital Battery Charger 772 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference II 35 WBN-0-CHGR-236-0003/F 125 V Vital Battery Charger III 772 IPEEE Screened
> 0.5 36 WBN-0-CHGR-236-0004/G 125 V Vital Battery Charger IV 772 IPEEE Screened
> 0.5 45W202 37 WBN-1-HTX-070-0185 CCS HEAT EXCHANGER A 737 IPEEE Screened
> 0.5 47W200-8 38 WBN-2-HTX-070-0185 CCS HEAT EXCHANGER B 737 IPEEE Screened
> 0.5 39 WBN-1-HTX-074-0030-A RHR HEAT EXCHANGER 1A 713 IPEEE Screened
> 0.5 47W200-5 40 WBN-2-HTX-074-0031-A RHR HEAT EXCHANGER 2A 713 IPEEE Screened
> 0.5 41 WBN-1-INV-235-0001-D 120 V AC Vital Inverter 1-I 772 IPEEE Screened
> 0.5 45W202 42 WBN-2-INV-235-0001-D 120 V AC Vital Inverter 2-I 772 IPEEE Screened
> 0.5 43 WBN-1-INV-235-0002-E 120 V AC Vital Inverter 1-II 772 IPEEE Screened
> 0.5 44 WBN-2-INV-235-0002-E 120 V AC Vital Inverter 2-II 772 IPEEE Screened
> 0.5 45 WBN-1-INV-235-0003-F 120 V AC Vital Inverter 1-III 772 IPEEE Screened
> 0.5 46 WBN-2-INV-235-0003-F 120 V AC Vital Inverter 2-III 772 IPEEE Screened
> 0.5 47 WBN-1-INV-235-0004-G 120 V AC Vital Inverter 1-IV 772 IPEEE Screened
> 0.5 48 WBN-2-INV-235-0004-G 120 V AC Vital Inverter 2-IV 772 IPEEE Screened
> 0.5 49 WBN-1-MCC-213-A001-A 480V Reactor MOV Board 1A1-A 772 IPEEE Screened
> 0.5 45W202 50 WBN-2-MCC-213-A001-A 480V Reactor MOV Board 2A1-A 772 IPEEE Screened
> 0.5 51 WBN-1-MCC-213-B001-B 480V Reactor MOV Board 1B1-772 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference B
52 WBN-2-MCC-213-B001-B 480V Reactor MOV Board 2B1-B 772 IPEEE Screened
> 0.5 53 WBN-1-MCC-214-A001-A Cont& Aux Bldg Vent Board 1A1-A 757 IPEEE Screened
> 0.5 45W204 54 WBN-2-MCC-214-B001-B Cont& Aux Bldg Vent Board 2B1-B 757 IPEEE Screened
> 0.5 45W204 55 WBN-1-MCC-214-A002-A Cont& Aux Bldg Vent Board 1A2-A 757 IPEEE Screened
> 0.5 56 WBN-2-MCC-214-B002-B Cont& Aux Bldg Vent Board 2B2-B 757 IPEEE Screened
> 0.5 57 WBN-1-OXF-212-A001-A 480 V Transformer 1A1-A 772 IPEEE Screened
> 0.5 45W202 58 WBN-2-OXF-212-A001-A 480 V Transformer 2A1-A 772 IPEEE Screened
> 0.5 59 WBN-1-OXF-212-A002-A 480 V Transformer 1A2-A 772 IPEEE Screened
> 0.5 60 WBN-2-OXF-212-B002-B 480 V Transformer 2B2-B 772 IPEEE Screened
> 0.5 61 WBN-1-PMP-062-0108-A Centrifugal Charging Pump 1A-A 692 IPEEE Screened
> 0.5 47W200-6, 9 62 WBN-2-PMP-062-0108-A Centrifugal Charging Pump 2A-A 692 IPEEE Screened
> 0.5 63 WBN-1-PMP-063-0010-A SAFETY INJECTION PUMP 1A-A 692 IPEEE Screened
> 0.5 64 WBN-2-PMP-063-0015-A SAFETY INJECTION PUMP 2A-A 692 IPEEE Screened
> 0.5 65 WBN-1-PMP-070-0046-A Component Cooling System Pump 1A-A 713 IPEEE Screened
> 0.5 47W200-5, 8
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 66 WBN-2-PMP-070-0059-A Component Cooling System Pump 2A-A 713 IPEEE Screened
> 0.5 67 WBN-1-PMP-074-0010-A RHR PUMP 1A-A 676 IPEEE Screened
> 0.5 47W200-7 68 WBN-2-PMP-074-0020-B RHR PUMP 2B-B 676 IPEEE Screened
> 0.5 69 WBN-1-PNL-276-L011A Steam Generator Level Control Panel 757 IPEEE Screened
> 0.5 47W600-2 70 WBN-2-PNL-276-L011A Steam Generator Level Control Panel 757 IPEEE Screened
> 0.5 71 WBN-1-PNL-276-L011B Steam Generator Level Control Panel 757 IPEEE Screened
> 0.5 72 WBN-2-PNL-276-L011B Steam Generator Level Control Panel 757 IPEEE Screened
> 0.5 73 WBN-1-PNL-278-M003 UNIT CONT.
BOARD PNL 1-M-3 755 IPEEE Screened
> 0.5 47W605-1 74 WBN-2-PNL-278-M003 UNIT CONT.
BOARD PNL 2-M-3 755 IPEEE Screened
> 0.5 75 WBN-1-PNL-278-M004 UNIT CONT.
BOARD PNL 1-M-4 755 IPEEE Screened
> 0.5 76 WBN-2-PNL-278-M004 UNIT CONT.
BOARD PNL 2-M-4 755 IPEEE Screened
> 0.5 77 WBN-1-PNL-278-M010 TEMPERATURE MONITORING 755 IPEEE Screened
> 0.5 78 WBN-2-PNL-278-M010 TEMPERATURE MONITORING 755 IPEEE Screened
> 0.5 79 WBN-1,2-TANK-018-0038, 41 7 Day Fuel Oil Sup Dsl Gen 738 IPEEE Screened
> 0.5 10N320-5 80 WBN-1-TANK-063-0046 Refueling Water Storage Tank 729 IPEEE Screened
> 0.5 41N363-3
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 81 WBN-2-TANK-063-0046 Refueling Water Storage Tank 729 IPEEE Screened
> 0.5 82 WBN-1-TANK-070-0001 Component Cooling Water Surge Tank 757 IPEEE Screened
> 0.5 47W200-3, 9 83 WBN-2-TANK-070-0001 Component Cooling Water Surge Tank 757 IPEEE Screened
> 0.5 84 WBN-1-FCV-062-0063-A CVCS SEAL WATER RETURN HEADER ISOL 720 IPEEE Screened
> 0.5 U1 SSEL page A61 85 WBN-2-FCV-062-0063-A CVCS SEAL WATER RETURN HEADER ISOL 720 IPEEE Screened
> 0.5 U1 SSEL page A61 86 WBN-1-FCV-063-0067 Accumulator Isolation Valve 4
716 IPEEE Screened
> 0.5 47W435-5 87 WBN-2-FCV-063-0067 Accumulator Isolation Valve 4
716 IPEEE Screened
> 0.5 88 WBN-1-FCV-063-0080 Accumulator Isolation Valve 3
716 IPEEE Screened
> 0.5 47W435-4 89 WBN-2-FCV-063-0080 Accumulator Isolation Valve 3
716 IPEEE Screened
> 0.5 90 WBN-1-FCV-067-0083 LWR CNTMT A CLRS SUP CIV 719 IPEEE Screened
> 0.5 U1 SSEL page A75 91 WBN-1-FCV-063-0098 Accumulator Isolation Valve 2
716 IPEEE Screened
> 0.5 47W435-5 92 WBN-2-FCV-063-0098 Accumulator Isolation Valve 2
716 IPEEE Screened
> 0.5 93 WBN-1-FCV-063-0118 Accumulator Isolation Valve 1
716 IPEEE Screened
> 0.5 94 WBN-2-FCV-063-0118 Accumulator Isolation Valve 1
716 IPEEE Screened
> 0.5 95 WBN-2-FCV-067-0083 LWR CNTMT A CLRS SUP CIV 719 IPEEE Screened
> 0.5 IPEEE SSEL 96 WBN-1-FCV-067-0091 LWR CNTMT C CLRS SUP CIV 719 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 97 WBN-2-FCV-067-0091 LWR CNTMT C CLRS SUP CIV 719 IPEEE Screened
> 0.5 98 WBN-1-FCV-067-0099 LWR CNTMT B CLRS SUP CIV 720 IPEEE Screened
> 0.5 99 WBN-2-FCV-067-0099 LWR CNTMT B CLRS SUP CIV 720 IPEEE Screened
> 0.5 100 WBN-1-FCV-067-0107 LWR CNTMT D CLRS SUP CIV 715 IPEEE Screened
> 0.5 101 WBN-2-FCV-067-0107 LWR CNTMT D CLRS SUP CIV 715 IPEEE Screened
> 0.5 102 WBN-1-FCV-067-0130 UPR CNTMT CLR A SUP CIV 795 IPEEE Screened
> 0.5 103 WBN-2-FCV-067-0130 UPR CNTMT CLR A SUP CIV 795 IPEEE Screened
> 0.5 IPEEE SSEL 104 WBN-1-FCV-067-0133 UPR CNTMT CLR C SUP CIV 798 IPEEE Screened
> 0.5 105 WBN-2-FCV-067-0133 UPR CNTMT CLR C SUP CIV 798 IPEEE Screened
> 0.5 106 WBN-1-FCV-067-0138 UPR CNTMT CLR B SUP CIV 798 IPEEE Screened
> 0.5 107 WBN-2-FCV-067-0138 UPR CNTMT CLR B SUP CIV 798 IPEEE Screened
> 0.5 108 WBN-1-FCV-067-0141 UPR CNTMT CLR D SUP CIV 795 IPEEE Screened
> 0.5 109 WBN-2-FCV-067-0141 UPR CNTMT CLR D SUP CIV 795 IPEEE Screened
> 0.5 110 WBN-2-FCV-067-0143 CCS HX DISCH to HDR B 737 IPEEE Screened
> 0.5 111 WBN-1-FCV-067-0143 CCS HX DISCH to HDR B 737 IPEEE Screened
> 0.5 112 WBN-0-FCV-067-0144 CCS HX C DISCH to HDR A 737 IPEEE Screened
> 0.5 113 WBN-2-FCV-068-0332-B PRESSURIZER PORV BLOCK VALVE 786 IPEEE Screened
> 0.5 47W465-211 114 WBN-1-FCV-068-0333 PRESSURIZER PORV BLOCK VALVE 786 IPEEE Screened
> 0.5 115 WBN-1-FCV-070-0090-A RC Pump Therm Barrier Ret CNTNMT Isol 722 IPEEE Screened
> 0.5 IPEEE SSEL
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 116 WBN-2-FCV-070-0090-A RC Pump Therm Barrier Ret CNTNMT Isol 722 IPEEE Screened
> 0.5 117 WBN-1-FCV-070-0133-A RC Thermal Barrier ContIsol Valve 741 IPEEE Screened
> 0.5 118 WBN-2-FCV-070-0133-A RC Thermal Barrier ContIsol Valve 741 IPEEE Screened
> 0.5 119 WBN-2-LCV-002-0173-B TD AFW PUMP SG # 2 Level Control 737 IPEEE Screened
> 0.5 47W427-4 120 WBN-1-LCV-003-0172-A TD AFW PUMP SG # 3 Level Control 737 IPEEE Screened
> 0.5 121 WBN-2-LCV-003-0172-A TD AFW PUMP SG # 3 Level Control 737 IPEEE Screened
> 0.5 122 WBN-1-LCV-003-0173-B TD AFW PUMP SG # 2 Level Control 737 IPEEE Screened
> 0.5 123 WBN-1-LCV-003-0174-B TD AFW PUMP SG # 1 Level Control 729 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 124 WBN-2-LCV-003-0174-B TD AFW PUMP SG # 1 Level Control 729 IPEEE Screened
> 0.5 125 WBN-1-LCV-003-0175-A TD AFW PUMP SG # 4 Level Control 729 IPEEE Screened
> 0.5 126 WBN-2-LCV-003-0175-A TD AFW PUMP SG # 4 Level Control 729 IPEEE Screened
> 0.5 46W427-4 127 WBN-1-PCV-001-0005-T SG 1Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 47W400-2 128 WBN-2-PCV-001-0005-T SG 1Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 129 WBN-1-PCV-001-0012-T SG 2 Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 130 WBN-2-PCV-001-0012-T SG 2 Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 131 WBN-1-PCV-001-0023-T SG 3 Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 132 WBN-2-PCV-001-0023-T SG 3 Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 133 WBN-1-PCV-001-0030-T SG 4Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 134 WBN-2-PCV-001-0030-T SG 4Main STM HDR PWR Relief Control Valve 762 IPEEE Screened
> 0.5 135 WBN-2-PCV-068-0334 PRESSURIZER PORV 783 IPEEE Screened
> 0.5 47w465-2 136 WBN-1-PCV-068-0340A PRESSURIZER PORV 783 IPEEE Screened
> 0.5 137 WBN-1-SFV-001-0512 Steam Generator #3 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 47W400-2 138 WBN-2-SFV-001-0512 Steam Generator #3 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 139 WBN-1-SFV-001-0517 Steam Generator #2 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 47W400-2 140 WBN-2-SFV-001-0517 Steam Generator #2 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 141 WBN-1-SFV-001-0522 Steam Generator #1 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 142 WBN-2-SFV-001-0522 Steam Generator #1 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 143 WBN-1-SFV-001-0527 Steam Generator #4 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 144 WBN-2-SFV-001-0527 Steam Generator #4 Main Steam Safety Valve 729 IPEEE Screened
> 0.5 145 WBN-1-FAN-030-0038 Containment Air Return Fan A-A 740 IPEEE Screened
> 0.5 47W915-5 146 WBN-2-FAN-030-0039 Containment Air Return Fan B-B 740 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 147 WBN-1-EI-235-001/A1 AC OUTPUT AMMETER INVERTER 1-I 772 IPEEE Screened
> 0.5 45N218 148 WBN-1-BD-235-0001-D 120 V AC Vital Instrument Power Board 1-I 757 IPEEE Screened
> 0.5 149 WBN-1-EI-235-002/A1 AC OUTPUT AMMETER INVERTER 1-II 772 IPEEE Screened
> 0.5 150 WBN-1-BD-235-0002-E 120 V AC Vital Instrument Power Board 1-II 757 IPEEE Screened
> 0.5 151 WBN-1-BD-235-0003-F 120 V AC Vital Instrument Power Board 1-III 757 IPEEE Screened
> 0.5 152 WBN-1-BD-235-0004-G 120 V AC Vital Instrument Power Board 1-IV 757 IPEEE Screened
> 0.5 153 WBN-1-CLR-062-0108A-A CCP 1A-A LUBE OIL COOLER 692 IPEEE Screened
> 0.5 47W200-6, 9 154 WBN-1-CLR-062-0108B-A CCP 1A-A GEAR OIL COOLER 692 IPEEE Screened
> 0.5 155 WBN-1-CLR-063-0010 SAFETY INJECTION PUMP 1A-A LUBE OIL COOLER 692 IPEEE Screened
> 0.5 156 WBN-1-CLR-072-0027 CNTMT SPRAY PUMP 1A-A OIL COOLER 676 IPEEE Screened
> 0.5 47W200-7 157 WBN-1-HTX-074-0010-A RHR PUMP 1A-A SEAL WATER HEAT EXCHANGER 676 IPEEE Screened
> 0.5 158 WBN-1-XS-003-0172A-A STM GEN #3 TRF SW 757 IPEEE Screened
> 0.5 47W600-2 L11A and L11B Aux Control Room Panels 159 WBN-1-XS-003-0175A-A STM GEN #4 TRF SW 757 IPEEE Screened
> 0.5 160 WBN-1-XS-003-0173A-B STM GEN #2 TRF SW 757 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 161 WBN-1-XS-003-0174A-B STM GEN #1 TRF SW 757 IPEEE Screened
> 0.5 162 WBN-1-XI-046-57 TURB AFWP DEMAND 755 IPEEE Screened
> 0.5 47W605-1 Main Control Room Panels 163 WBN-1-FIC-046-0057A-S AUX FPT FLOW IND CONTROLLER 755 IPEEE Screened
> 0.5 164 WBN-1-HS-046-0056A-S TD AFW PMP Trip/Throttle Valve Handswitch AUTO MAN REMOTE SP FOR FIC-46-57B 755 IPEEE Screened
> 0.5 165 WBN-1-SI-046-0056A-S AFWT A-S SPEED 755 IPEEE Screened
> 0.5 166 WBN-1-XI-046-0054A AFWT A-S MOP POSITION 755 IPEEE Screened
> 0.5 167 WBN-1-XI-068-0100 Plasma Display 755 IPEEE Screened
> 0.5 168 WBN-1-XS-068-0101 Plasma Display Key Pad 755 IPEEE Screened
> 0.5 169 WBN-1-HS-068-340A-A RCS PRZR PWR RELIEF VALVE 755 IPEEE Screened
> 0.5 170 WBN-2-CPU-094-6000 Common Q operator Module Node Box 755 IPEEE Screened
> 0.5 47W605-1 Main Control Room Panels 171 WBN-2-FOC-094-4001A Common Q first modem 755 IPEEE Screened
> 0.5 172 WBN-1-HIC-068-397 RX HEAD VENT FLOW CONTROL 755 IPEEE Screened
> 0.5 173 WBN-2-HS-063-0015A SIS PUMP B-B MOTOR 755 IPEEE Screened
> 0.5 174 WBN-1-HS-063-0010A SIS PUMP A-A MOTOR 755 IPEEE Screened
> 0.5 175 WBN-1-HS-030-0038A AIR RET FAN A-A ON/OFF 755 IPEEE Screened
> 0.5 176 WBN-2-HS-030-0039B AIR RET FAN B-B ON/OFF 755 IPEEE Screened
> 0.5 177 WBN-2-EI-235-001/A1 AC OUTPUT AMMETER INVERTER 2-I 772 IPEEE Screened
> 0.5 45N218
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 178 WBN-2-BD-235-0001-D 120 V AC Vital Instrument Power Board 2-I 757 IPEEE Screened
> 0.5 179 WBN-2-BD-235-0002-E 120 V AC Vital Instrument Power Board 2-II 757 IPEEE Screened
> 0.5 180 WBN-2-EI-235-002/A1 AC OUTPUT AMMETER INVERTER 2-II 772 IPEEE Screened
> 0.5 181 WBN-2-BD-235-0003-F 120 V AC Vital Instrument Power Board 2-III 757 IPEEE Screened
> 0.5 182 WBN-2-BD-235-0004-G 120 V AC Vital Instrument Power Board 2-IV 757 IPEEE Screened
> 0.5 183 WBN-2-CLR-062-0108A-A CCP 2A-A LUBE OIL COOLER 692 IPEEE Screened
> 0.5 47W600-6, 9 184 WBN-2-CLR-062-0108B-A CCP 2A-A GEAR OIL COOLER 692 IPEEE Screened
> 0.5 185 WBN-2-CLR-063-0010 SAFETY INJECTION PUMP 2A-A LUBE OIL COOLER 692 IPEEE Screened
> 0.5 186 WBN-2-CLR-072-0027 CNTMT SPRAY PUMP 2A-A OIL COOLER 676 IPEEE Screened
> 0.5 47W200-7 187 WBN-2-HTX-074-0010-A RHR PUMP 2A-A SEAL WATER HEAT EXCHANGER 676 IPEEE Screened
> 0.5 188 WBN-2-XS-003-0172A-A STM GEN #3 TRF SW 757 IPEEE Screened
> 0.5 47W600-2 Aux Instrument Room Panels L11A L11B 189 WBN-2-XS-003-0175A-A STM GEN #4 TRF SW 757 IPEEE Screened
> 0.5 190 WBN-2-XS-003-0173A-B STM GEN #2 TRF SW 757 IPEEE Screened
> 0.5 191 WBN-2-XS-003-0174A-B STM GEN #1 TRF SW 757 IPEEE Screened
> 0.5 192 WBN-2-XI-046-57 TURB AFWP DEMAND 755 IPEEE Screened
> 0.5 47W605-1
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 193 WBN-2-FIC-046-0057A-S AUX FPT FLOW IND CONTROLLER 755 IPEEE Screened
> 0.5 Main Control Room Panels 194 WBN-2-HS-046-0056A-S TD AFW PMP Trip/Throttle Valve Handswitch AUTO MAN REMOTE SP FOR FIC-46-57B 755 IPEEE Screened
> 0.5 195 WBN-2-SI-046-0056A-S AFWT A-S SPEED 755 IPEEE Screened
> 0.5 196 WBN-2-XI-046-0054A AFWT A-S MOP POSITION 755 IPEEE Screened
> 0.5 197 WBN-2-HS-068-333A RCS PRZR REL FLOW CONTROL 755 IPEEE Screened
> 0.5 198 WBN-2-HIC-068-397 RX HEAD VENT FLOW CONTROL 755 IPEEE Screened
> 0.5 199 WBN-2-MON-068-0110 Plasma Touch Screen Display 755 IPEEE Screened
> 0.5 200 WBN-2-BD-211-A 6.9 KV Shutdown Board 2A-A 757 IPEEE Screened
> 0.5 45W204 201 WBN-2-ACUM-063-0001 SIS Accumulator Tank 1 716 IPEEE Screened
> 0.5 47W200-14 202 WBN-2-ACUM-063-0002 SIS Accumulator Tank 2 716 IPEEE Screened
> 0.5 203 WBN-2-ACUM-063-0003 SIS Accumulator Tank 3 716 IPEEE Screened
> 0.5 47W200-14 204 WBN-2-ACUM-063-0004 SIS Accumulator Tank 4 716 IPEEE Screened
> 0.5 205 WBN-1-HIC-068-396 RX HEAD VENT FLOW CONTROL 755 IPEEE Screened
> 0.5 47W605-1 Main Control Room 206 WBN-1-PNL-099-R2-D Reactor Protection I Process System 708 IPEEE Screened
> 0.5 47W605-2 207 WBN-1-PNL-099-R46-A Solid State Protection System Train A 708 IPEEE Screened
> 0.5 208 WBN-1-PNL-099-R49-B Solid State Protection System Train B 708 IPEEE Screened
> 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 209 WBN-1-PNL-099-R6-E Reactor Protection II Process System 708 IPEEE Screened
> 0.5 210 WBN-1-PMP-072-0027-A Containment Spray Pump 1A-A 676 IPEEE Screened
> 0.5 211 WBN-2-PI-001-0027D MAIN STEAM LOOP 4 PRESSURE (typical for each SG) 692 ESEP Anchorage 0.56 212 WBN-2-HS-046-0056B-S TD AFW PMP TRIP/THV 2-FCV-1-51 POS CNTL 692 ESEP Functionality 0.57 213 WBN-2-PS-002-0321 Pressure Switch to open U2 AOV 2-FCV-3-6386 from AFW Supply Tank upon low pressure in U1 Condensate supply piping.
723 ESEP Functionality 0.83 47W420-6 214 WBN-2-FSV-003-6386 Solenoid valve to open U1 AFW Supply Tank insolation Valve 1-FCV-306386 723 ESEP Functionality 0.83 47W600-409 215 WBN-1-FT-63-151 Safety Injection Pump Flow 692 ESEP Anchorage 0.52 47W600-136, 325 216 WBN-2-FT-63-20 Safety Injection Pump Flow 692 ESEP Anchorage 0.52 47W600-136,325 217 WBN-1-PI-001-0027D MAIN STEAM LOOP 4 PRESSURE (typical for each SG) 692 ESEP Anchorage 0.56 L-381 218 WBN-1-HS-046-0056B-S TD AFW PMP TRIP/THV 1-FCV-1-51 POS CNTL 692 ESEP Functionality 0.57 219 WBN-0-HS-360-0103C Fuel Oil Transfer Pmp A Emer Stop SW 742 ESEP Anchorage 0.66 15W814-1
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 220 Not Used 221 WBN-0-PMP-360-103, 203 Fuel Oil System Transfer Pump 742 ESEP Anchorage 0.66 Maxim Location 222 WBN-0-LIT-003-227 Level Indicating Transmitter for the AFW Supply Tank and High/Low Level Alarms 729 ESEP Anchorage 0.51 47W600-408 223 WBN-0-FU1-360-0103A Primary Cntrl Fuse for Fuel Oil Pump A Starter 742 ESEP Anchorage 0.5 Boxed with Item 267 224 WBN-0-FU1-360-0103B Secondary Cntrl Fuse for Fuel Oil Pump A Starter 742 ESEP Anchorage 0.5 225 WBN-0-FU1-360-0103C Primary Cntrl Fuse for Fuel Oil Pump A Starter 742 ESEP Anchorage 0.5 226 WBN-0-FUDS-360-FP/AM 480 V FLEX Main Panel A - Main -
Disconnect 772 ESEP Functionality 0.57 45W758-2 45W202 227 WBN-0-FUDS-360-FP/BM 480 v FLEX Main Panel B - Main -
Disconnect 772 ESEP Functionality 0.57 228 WBN-0-XSW-236-0004-S 480v AC Vital Transfer Switch IV 772 ESEP Functionality 0.89 45W709-2 229 WBN-0-XSW-236-0003-S 480v AC Vital Transfer Switch III 772 ESEP Functionality 0.89 230 WBN-0-XSW-236-0002-S 480v AC Vital Transfer Switch II 772 ESEP Functionality 0.89 45W709-2 231 WBN-0-XSW-236-0001-S 480v AC Vital Transfer Switch I 772 ESEP Functionality 0.89 232 WBN-0-GNGC-360-DG/A 480 V FLEX DG A Neutral Grounding Resistor Box 786 ESEP Functionality 0.57 Refer to Item 342 233 WBN-0-BKR-360-DG/A, B 480 V FLEX DG A
- Circuit Breaker Functionality 0.57
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 234 WBN-1-HTR-268-various Hydrogen Igniters Group A - 34 igniters Various ESEP screened (rugged) 0.5 235 WBN-2-HTR-268-various Hydrogen Igniters Group B
- 34 igniters Various ESEP screened (rugged) 0.5 236 WBN-0-RFV-003-0005 Conservation vent valve for the AFW Supply Tank.
729 ESEP screened (Table 2.4) 0.5 Refer to Item 304 AFW Supply Tank 237 WBN-1-FCV-001-0052 TD Aux FeedwaterPmp Governor Valve 692 IPEEE screened 0.5 47W200-2, 9 238 WBN-2-FCV-001-0052 TD Aux FeedwaterPmp Governor Valve 692 IPEEE screened 0.5 239 WBN-0-PI-003-1 Pressure indicator for the AFW Supply Tank 729 ESEP screened (rugged) 0.5 47W600-408 240 WBN-1-PS-002-0320 Pressure Switch to open U1 AOV 1-FCV-3-6386 from AFW Supply Tank upon low pressure in U1 Condensate supply piping.
723 ESEP screened (rugged) 0.5 47W420-6 241 WBN-0-BD-360-0003A, 3B 3MW Diesel Generator 3A 6.9KV Switchgear 742 ESEP Functionality 0.68 FESB 242 WBN-2-DXF-268-0002-B Hydrogen Mitigation Transformer 782 ESEP Anchorage 0.51 45N226-1 243 WBN-1-DXF-268-0001-A Hydrogen Mitigation Transformer 782 ESEP Anchorage 0.51 244 WBN-0-DXF-360-DG/AP, BP 480 V FLEX DG 2 KVA Sealed XFMR 742 ESEP Functionality 0.57 Rizzo HCLPF calc page 46
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 245 WBN-0-XFMR-360-3A/1, 3B/1 6900V 3MW FLEX Diesel GEN 20 KVA Dry Type Transformer 742 ESEP Functionality 0.67 0-15W860-1 246 WBN-0-XFMR-360-3A/2, 3B/2 6900V 3MW FLEX Diesel GEN 5 KVA Dry Type Transformer 742 ESEP Functionality 0.57 Rizzo HCLPF calc page 75 247 WBN-1-PNL-276-L381 TDAFWP Control Panel 792 ESEP Anchorage 0.56 248 WBN-2-PNL-276-L381 TDAFWP Control Panel 792 ESEP Anchorage 0.56 249 WBN-0-PNL-360-DG/A1 Fuel Oil Transfer Pump Control Panel 742 ESEP Functionality 0.65 Rizzo HCLPF calc page 86, 104 group 3 250 WBN-0-XSW-236-0001A-S 125V Vital Batt CHGR I 480 V FLEX Transfer Switch 772 ESEP Functionality 0.58 45N218 251 WBN-0-XSW-236-0002A-S 125V Vital Batt CHGR 2 480 V FLEX Transfer Switch 772 ESEP Functionality 0.58 252 WBN-0-XSW-236-0003A-S 125V Vital Batt CHGR 3 480 V FLEX Transfer Switch 772 ESEP Functionality 0.58 253 WBN-0-XSW-236-0004A-S 125V Vital Batt CHGR 4 480 V FLEX Transfer Switch 772 ESEP Functionality 0.58 254 WBN-0-PNL-360-FP/A 480 V FLEX Fuse Panel A 772 ESEP Functionality 0.57 47W200-2 255 WBN-0-PNL-360-FP/B 480 V FLEX Fuse Panel B 772 ESEP Functionality 0.57 47W200-2 256 WBN-1-PNL-276-L326-S AUX FW TURBINE SPEED CONTROL PANEL 692 ESEP Functionality 0.85 47W600-120 257 WBN-2-PNL-276-L326-S AUX FW TURBINE SPEED CONTROL PANEL 692 ESEP Functionality 0.85
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 258 WBN-0-RES-360-003A, 3B 3MW Diesel Generator A Neutral Grounding Resistor 742 ESEP Functionality 0.79 15W860-1A 259 WBN-1-PNL-276-L381A AUX FEEDWATER CONTROL 692 ESEP Functionality 0.57 47W600-120 260 WBN-2-PNL-276-L381A AUX FEEDWATER CONTROL 692 ESEP Functionality 0.57 261 WBN-0-XSW-360-HPCS FLEX COMMON SPARE HP PUMP TRANSFER SWITCH 757 ESEP Functionality 0.57 45W828-7 262 WBN-1-XSW-82-A DG 1A-A Transfer Switch TO 6.9KV SD BD 1A-A 742 ESEP Functionality 0.57 15N211-1 263 WBN-2-XSW-82-A DG 2A-A Transfer Switch TO 6.9KV SD BD 2A-A 742 ESEP Functionality 0.57 264 WBN-1-XSW-82-B DG 1B-BTransfer SwitchDG to SD BD 1B-B 742 ESEP Functionality 0.57 265 WBN-2-XSW-82-B DG 2B-BTransfer Switch DG to SD BD 2B-B 742 ESEP Functionality 0.57 266 WBN-0-FUDS-360-DG/AP2, BP2 480 V FLEX DG Pump Disconnect Switch 742 ESEP Functionality 0.57 Rizzo HCLPF calc page 186 267 WBN-0-STR-360-0103, 203 3MW FLEX Diesel GEN PMP Starter 742 ESEP Anchorage 0.54 Rizzo HCLPF calc page 191 268 WBN-0-SW-360-0003A/1, 3B/1 6900V 3MW FLEX Diesel GEN Fused Disconnect Switch 742 ESEP Anchorage 0.5 15W680-1
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 269 WBN-1-TE-068-0380-E Reactor Level Cap tube Temp Comp 713 ESEP Anchorage 0.52 47W600-292 270 WBN-2-PNL-276-L340 Reactor Vessel instrumentation System II Panel 714 ESEP Anchorage 0.52 47W600-314 271 WBN-1-PNL-276-L388 Reactor Vessel instrumentation System I Panel 714 ESEP Anchorage 0.52 47W600-297 272 WBN-2-TE-068-0380-E Reactor Level Cap tube Temp Comp 714 ESEP Anchorage 0.52 273 WBN-0-LI-3-227 AFW Supply Tank Level Indicator 708 ESEP Anchorage 0.52 57W600-63 274 WBN-1-LI-63-51 RWST Level 755 IPEEE Anchorage 0.52 47W605-1 275 WBN-2-LI-63-51 RWST Level 755 IPEEE Anchorage 0.52 276 WBN-1-LPF-3-142 TDAFW Pump Flow 755 ESEP Anchorage 0.52 277 WBN-2-LPF-3-142 TDAFW Pump Flow 755 ESEP Anchorage 0.52 278 WBN-1-LPF 147B AFW Flow S/G 3 755 ESEP Anchorage 0.52 279 WBN-2-LPF 147B AFW Flow S/G 3 755 ESEP Anchorage 0.52 280 WBN-1-LPF 155A AFW Flow S/G 2 755 ESEP Anchorage 0.52 281 WBN-2-LPF 155A AFW Flow S/G 2 755 ESEP Anchorage 0.52 282 WBN-1-LPF 163B AFW Flow S/G 1 755 ESEP Anchorage 0.52 283 WBN-2-LPF 163B AFW Flow S/G 1 755 ESEP Anchorage 0.52 284 WBN-1-LPF 170A AFW Flow S/G 4 755 ESEP Anchorage 0.52 285 WBN-2-LPF 170A AFW Flow S/G 4 755 ESEP Anchorage 0.52 286 WBN-1-LPL-3-111 S/G WR Level Loop 4 755 ESEP Anchorage 0.52
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 287 WBN-2-LPL-3-111 S/G WR Level Loop 4 755 ESEP Anchorage 0.52 288 WBN-1-LPL-3-148 S/G NR Level Loop 3 755 ESEP Anchorage 0.52 289 WBN-2-LPL-3-148 S/G NR Level Loop 3 755 ESEP Anchorage 0.52 290 WBN-1-LPL-3-156 S/G NR Level Loop 2 755 ESEP Anchorage 0.52 291 WBN-2-LPL-3-156 S/G NR Level Loop 2 755 ESEP Anchorage 0.52 292 WBN-1-LPL-3-164 S/G NR Level Loop 1 755 ESEP Anchorage 0.52 293 WBN-2-LPL-3-164 S/G NR Level Loop 1 755 ESEP Anchorage 0.52 294 WBN-1-LPL-3-171 S/G NR Level Loop 4 755 ESEP Anchorage 0.52 295 WBN-2-LPL-3-171 S/G NR Level Loop 4 755 ESEP Anchorage 0.52 296 WBN-1-LPL-3-43 S/G WR Level Loop 1 755 ESEP Anchorage 0.52 297 WBN-2-LPL-3-43 S/G WR Level Loop 1 755 ESEP Anchorage 0.52 298 WBN-1-LPL-3-56 S/G WR Level Loop 1 755 ESEP Anchorage 0.52 299 WBN-2-LPL-3-56 S/G WR Level Loop 2 755 ESEP Anchorage 0.52 300 WBN-1-LPL-3-98 S/G WR Level Loop 3 755 ESEP Anchorage 0.52 301 WBN-2-LPL-3-98 S/G WR Level Loop 3 755 ESEP Anchorage 0.52 302 WBN-1-LPL 335 PZR Level 755 ESEP Anchorage 0.52 303 WBN-2-LPL 335 PZR Level 755 ESEP Anchorage 0.52 304 WBN-0-LPL-78-42 SFP Level 755 ESEP Anchorage 0.52 305 WBN-1-LPN 131 Nuclear Flux 755 ESEP Anchorage 0.52
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 306 WBN-2-LPN 132 Nuclear Flux 755 ESEP Anchorage 0.52 307 WBN-1-LPP-1-20A S/G Pressure Loop 3 755 ESEP Anchorage 0.52 308 WBN-2-LPP-1-20A S/G Pressure Loop 3 755 ESEP Anchorage 0.52 309 WBN-1-LPP-1-27B S/G Pressure Loop 4 755 ESEP Anchorage 0.52 310 WBN-2-LPP-1-27B S/G Pressure Loop 4 755 ESEP Anchorage 0.52 311 WBN-1-LPP-1-2A S/G Pressure Loop 1 755 ESEP Anchorage 0.52 312 WBN-2-LPP-1-2A S/G Pressure Loop 1 755 ESEP Anchorage 0.52 313 WBN-1-LPP-1-9A S/G Pressure Loop 2 755 ESEP Anchorage 0.52 314 WBN-2-LPP-1-9A S/G Pressure Loop 2 755 ESEP Anchorage 0.52 315 WBN-1-LPP-68-68 RCS WR Pressure 755 ESEP Anchorage 0.52 316 WBN-2-LPP-68-66 RCS WR Pressure 755 ESEP Anchorage 0.52 317 WBN-1-LPPD 310 Containment Pressure 755 ESEP Anchorage 0.52 318 WBN-2-LPPD 310 Containment Pressure 755 ESEP Anchorage 0.52 319 WBN-1-LPT 1032 Containment Temperature 755 ESEP Anchorage 0.52 320 WBN-2-LPT 1032 Containment Temperature 755 ESEP Anchorage 0.52 321 WBN-1-LPT-68-1 RCS WR Thot Loop 1 755 ESEP Anchorage 0.52 322 WBN-2-LPT-68-1 RCS WR Thot Loop 1 755 ESEP Anchorage 0.52 323 WBN-1-LPT-68-18 RCS WR Tcold Loop 1 755 ESEP Anchorage 0.52 324 WBN-2-LPT-68-18 RCS WR Tcold Loop 1 755 ESEP Anchorage 0.52
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 325 WBN-1-LPT-68-41 RCS WR Tcold Loop 2 755 ESEP Anchorage 0.52 326 WBN-2-LPT-68-41 RCS WR Tcold Loop 2 755 ESEP Anchorage 0.52 327 WBN-1-LPT-68-60 RCS WR Tcold Loop 3 755 ESEP Anchorage 0.52 328 WBN-2-LPT-68-60 RCS WR Tcold Loop 3 755 ESEP Anchorage 0.52 329 WBN-1-LPT-68-83 RCS WR Tcold Loop 4 755 ESEP Anchorage 0.52 330 WBN-2-LPT-68-83 RCS WR Tcold Loop 4 755 ESEP Anchorage 0.52 331 WBN-1-PNL-276-L1000 PORV AND AFW-LCV STM GEN 3
& 4 PNL 757 ESEP Anchorage 0.52 47W600-88 332 WBN-2-PNL-276-L1000 PORV AND AFW-LCV STM GEN 3
& 4 PNL 755 ESEP Anchorage 0.52 333 WBN-1-PNL-276-L1001 PORV AND AFW-LCV STM GEN 1
& 2 PNL 755 ESEP Anchorage 0.52 334 WBN-2-PNL-276-L1001 PORV AND AFW-LCV STM GEN 1
& 2 PNL 755 ESEP Anchorage 0.52 335 WBN-1-PNL-094-0008A-J Incore Thermocouple Mon Sys Jbox 716 ESEP Anchorage 0.52 47W600-138 336 WBN-1-PNL-094-0008B-J Incore Thermocouple Mon Sys Jbox 716 ESEP Anchorage 0.52 337 WBN-0-DPL-360-0003A/1, 3B/1 480-Volt Distribution Panel 742 ESEP Functionality 0.68 15W771 338 WBN-0-DPL-360-0003A/2, 3B/2 120/240 VAC Panelboard 742 ESEP Functionality 0.68
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 339 WBN-2-DPL-268-0002-B Hydrogen Mitigation Distribution Panel 782 ESEP Functionality 0.57 45W2772-7 45W1770-8 340 WBN-1-DPL-268-0001-A Hydrogen Mitigation Distribution Panel 782 ESEP Functionality 0.57 45W2772-7 45W1770-8 341 WBN-0-FUSD-360-DG/AP1, BP/1 480 V FLEX DG Pump A - Fusible Disc Switch 742 ESEP Functionality 0.57 342 WBN-0-DG-360-000A, 000B 480V FLEX/ESBO 225 KVA Diesel Generator 786 ESEP Functionality 0.57 45W204 343 WBN-0-DG-360-0003A, 3B 6900V 3MW Diesel Generator 742 ESEP Anchorage 0.87 16W370-1 344 WBN-1-PMP-003-0001A-S TD Aux Feedwater Pump 1A-S 692 ESEP Anchorage 0.59 47W600-6, 9 345 WBN-2-PMP-003-0002A-S TD Aux Feedwater Pump 2A-S 692 ESEP Screened 0.59 346 WBN-0-PMP-360-DG/A1, B1 Fuel Oil Transfer Pump 742 ESEP Functionality 0.57 18N302 347 WBN-1-PMP-360-HP01 HP FLEX Pump 692 ESEP Functionality 0.5 47W436-1 348 WBN-2-PMP-360-HP01 HP FLEX Pump 692 ESEP Functionality 0.5 349 WBN-1-PMP-360-IP01 FLEX IP PUMP 01 737 ESEP Functionality 0.5 350 WBN-2-PMP-360-IP01 FLEX IP PUMP 01 737 ESEP Functionality 0.5 351 WBN-1-PMP-360-IP02 FLEX IP PUMP 02 692 ESEP Functionality 0.5 352 WBN-2-PMP-360-IP02 FLEX IP PUMP 02 692 ESEP Functionality 0.5
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 353 WBN-1-FCV-003-6386 FCV SHARED AFW TANK OUTLET PIPE TO U1 CONDENSATE 724 ESEP Functionality 0.83 47W427-14 354 WBN-2-FCV-003-6386 FCV FOR AFW Supply Tank Outlet Piping to U2 Condensate 724 ESEP Functionality 0.83 47W427-14 355 WBN-0-FCV-070-0194-B SFP HEAT EXCHANGER B CCS SUPPLY 737 ESEP Functionality 0.69 Maximo Location 356 WBN-0-FCV-070-0197-A SFP HEAT EXCHANGER A CCS SUPPLY 737 ESEP Functionality 0.69 357 WBN-0-FCV-067-0205 StaSer&Cntl Air Cmpr Supply Hdr A Isol valve 713 ESEP Functionality 0.83 358 WBN-0-FCV-067-0208 StaSer&Cntl Air Cmpr Supply Hdr B Isol valve 713 ESEP Functionality 0.83 359 WBN-1-FCV-001-051 TD Aux FeedwaterPmp Trip & Throttle Valve 692 ESEP Functionality 0.7 47W200-6, 9 360 WBN-2-FCV-001-051 TD Aux FeedwaterPmp Trip & Throttle Valve 692 ESEP Functionality 0.7 361 WBN-2-FCV-003-0179A-B ERCW Header B TD AFW PMP SUCT (PS-144) 692 ESEP Functionality 1.14 47W427-1 362 WBN-2-FCV-003-0136A-A ERCW Header A TD AFW PMP SUCT (PS-139) 692 ESEP Functionality 1.14 363 WBN-2-FCV-003-0136B-A ERCW Header A TD AFW PMP SUCT 692 ESEP Functionality 1.14 364 WBN-2-FCV-003-0179B-B ERCW Header B TD AFW PMP SUCT 692 ESEP Functionality 1.14
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 365 WBN-1-FCV-003-0136A-A ERCW Header A TD AFW PMP SUCT (PS-139) 692 ESEP Functionality 1.14 366 WBN-1-FCV-003-0136B-A ERCW Header A TD AFW PMP SUCT 692 ESEP Functionality 1.14 367 WBN-1-FCV-003-0179A-B ERCW Header B TD AFW PMP SUCT (PS-144) 692 ESEP Functionality 1.14 47W427-1 368 WBN-1-FCV-003-0179B-B ERCW Header B TD AFW PMP SUCT 692 ESEP Functionality 1.14 369 WBN-1-FCV-067-0147A CCS HX C SUP FROM HDR 1A 757 ESEP Functionality 0.92 47W450-4, 19 370 WBN-1-FCV-067-0458A CCS HX C SUP FROM HDR 1B 757 ESEP Functionality 0.92 371 WBN-1-TANK 0402A N2 TANK NO. 1 SUPPLY TO 1-LCV-003-0173-B 757 ESEP Anchorage 0.63 48W1210 372 WBN-1-TANK-001-0405A N2 TANK NO. 1 SUP TO 1-PCV-001-0012-B 757 ESEP Anchorage 0.63 373 WBN-2-TANK-001-0405A N2 TANK NO. 1 SUP TO 2-PCV-001-0012-B 757 ESEP Anchorage 0.63 374 WBN-1-TANK-001-0405B N2 TANK NO. 2 SUP TO 1-PCV-001-0012-B 757 ESEP Anchorage 0.63 375 WBN-2-TANK-001-0405B N2 TANK NO. 2 SUP TO 2-PCV-001-0012-B 757 ESEP Anchorage 0.63 376 WBN-1-TANK-001-0406A N2 TANK NO. 1 SUP TO 1-PCV-001-0030-B 757 ESEP Anchorage 0.63 377 WBN-2-TANK-001-0406A N2 TANK NO. 1 SUP TO 2-PCV-001-0030-B 757 ESEP Anchorage 0.63 378 WBN-1-TANK-001-0406B N2 TANK NO. 2 SUP TO 1-PCV-001-0030-B 757 ESEP Anchorage 0.63
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 379 WBN-2-TANK-001-0406B N2 TANK NO. 2 SUP TO 2-PCV-001-0030-B 757 ESEP Anchorage 0.63 380 WBN-1-TANK-001-0407A N2 TANK NO. 1 SUP TO 1-PCV-001-0023-A 757 ESEP Anchorage 0.63 381 WBN-2-TANK-001-0407A N2 TANK NO. 1 SUP TO 2-PCV 0023-A 757 ESEP Anchorage 0.63 382 WBN-1-TANK-001-0407B N2 TANK NO. 2 SUP TO 1-PCV-001-0023-A 757 ESEP Anchorage 0.63 48W1210 383 WBN-2-TANK-001-0407B N2 TANK NO. 2 SUP TO 2-PCV 0023-A 757 ESEP Anchorage 0.63 384 WBN-1-TANK-001-0408A N2 TANK NO. 1 SUP TO 1-PCV-001-0005-A 757 ESEP Anchorage 0.63 385 WBN-2-TANK-001-0408A N2 TANK NO. 1 SUP TO 2-PCV-001-0005-A 757 ESEP Anchorage 0.63 386 WBN-1-TANK-001-0408B N2 TANK NO. 2 SUP TO 1-PCV-001-0005-A 757 ESEP Anchorage 0.63 387 WBN-2-TANK-001-0408B N2 TANK NO. 1 SUP TO 2-PCV-001-0005-A 757 ESEP Anchorage 0.63 388 WBN-2-TANK 0402A N2 TANK NO. 1 SUPPLY TO 2-LCV-003-0173-B 757 ESEP Anchorage 0.63 389 WBN-1-TANK 0402B N2 TANK NO. 2 SUPPLY TO 1-LCV-003-0173-B 757 ESEP Anchorage 0.63 390 WBN-2-TANK 0402B N2 TANK NO. 2 SUPPLY TO 2-LCV-003-0173-B 757 ESEP Anchorage 0.63 391 WBN-1-TANK 0402C N2 TANK NO. 1 SUPPLY TO 1-LCV-003-0174-B 757 ESEP Anchorage 0.63
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 392 WBN-2-TANK 0402C N2 TANK NO. 1 SUPPLY TO 2-LCV-003-0174-B 757 ESEP Anchorage 0.63 393 WBN-1-TANK 0402D N2 TANK NO. 2 SUPPLY TO 1-LCV-003-0174-B 757 ESEP Anchorage 0.63 394 WBN-2-TANK 0402D N2 TANK NO. 2 SUPPLY TO 2-LCV-003-0174-B 757 ESEP Anchorage 0.63 395 WBN-1-TANK 0403A N2 TANK NO. 1 SUP TO 1-LCV-003-0172-A 757 ESEP Anchorage 0.63 396 WBN-2-TANK 0403A N2 TANK NO. 1 SUP TO 2-LCV 172-A 757 ESEP Anchorage 0.63 48W1210 397 WBN-1-TANK 0403B N2 TANK NO. 2 SUP TO 1-LCV-003-172-A 757 ESEP Anchorage 0.63 398 WBN-2-TANK 0403B N2 TANK NO. 2 SUP TO 2-LCV 172-A 757 ESEP Anchorage 0.63 399 WBN-1-TANK 0403C N2 TANK NO. 1 SUP TO 1-LCV-003-0175-A 757 ESEP Anchorage 0.63 400 WBN-2-TANK 0403C N2 TANK NO. 1 SUP TO 2-LCV 175-A 757 ESEP Anchorage 0.63 401 WBN-1-TANK 0403D N2 TANK NO. 2 SUP TO 1-LCV-003-0175-A 757 ESEP Anchorage 0.63 402 WBN-2-TANK 0403D N2 TANK NO. 2 SUP TO 2-LCV 175-A 757 ESEP Anchorage 0.63 403 WBN-0-TANK-003-0226 AFW Supply Tank 500,000 gallons 729 ESEP Anchorage 0.51 17W361-2 404 WBN-0-TANK-360-113 6900V 3MW FLEX DG Fuel Oil Storage Tank 3A 742 ESEP Anchorage 0.66 10W370-4 405 WBN-1-CLR-003-0001-B TD Aux FW PMP Oil Cooler 692 ESEP Functionality 3
47W200-6, 9
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 406 WBN-2-CLR-003-0001-B TD Aux FW PMP Oil Cooler 692 ESEP Functionality 3
407 WBN-2-RLY-046-0057-S Transfer Sw in Aux PosIsol Rly 692 ESEP Chatter 1.55 Rizzo Relay Report 408 WBN-2-RLY-046-B002/1-S B2-1 Relay AFPT Trip & Throttle Vlv Photo Iso 692 ESEP Chatter 1.3 409 WBN-2-RLY-046-B002/2-S B2-2 Relay AFPT Trip & Throttle Vlv Photo Iso 692 ESEP Chatter 1.3 410 WBN-2-RLY-046-B002/3-S B2-3 Relay AFPT Speed Control InstrPwr 692 ESEP Chatter 1.55 411 WBN-2-RLY-046-BA-S BA & BB Relay AFPT Speed Control Buffer Relay 692 ESEP Chatter 1.79 Rizzo Relay report 412 WBN-2-RLY-046-BA1-S BA1 Relay AFPT Speed Control Buffer 692 ESEP Chatter 1.79 413 WBN-2-RLY-046-BB-S BA & BB Relay AFPT Speed Control Buffer Relay 692 ESEP Chatter 1.79 414 WBN-2-RLY-046-R/A-A Aux FW Pump Vlv Sep Relay 708 ESEP Chatter 1.4 415 WBN-2-RLY-046-R/B-B Aux FW Pump Vlv Sep Relay 708 ESEP Chatter 1.4 416 WBN-2-RLY-046-R1-S AFPT ACC Reset Relay 692 ESEP Chatter 1.79 417 WBN-2-RLY-046-R2-S AFPT ACC Reset Relay 692 ESEP Chatter 1.79 418 WBN-2-RLY-046-R4-A AFPT SUP Xfer FCV-1-15,-16 & -
51 Sep Relay TR A
708 ESEP Chatter 1.79 419 WBN-2-RLY-046-R5-A Aux Feed Pump TrbStm Supply Xfer Sep Relay TR A 708 ESEP Chatter 1.62
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 420 WBN-2-RLY-046-RA1-A Turb/Mtr Driven Aux FW Pump Vlvs Aux Relay 708 ESEP Chatter 1.4 421 WBN-2-RLY-046-RA2-A Turb/Mtr Driven Aux FW Pump Vlv SSEP Relay 708 ESEP Chatter 1.4 422 WBN-2-RLY-046-RAS-S AFPT Pump 2-FCV-1-51 MtrDrVlv 2-LCV-3-156 & 164 708 ESEP Chatter 1.4 423 WBN-2-RLY-046-RB1-B Turb/Mtr Driven Aux FW Pump Vlvs Aux Relay 708 ESEP Chatter 1.4 424 WBN-2-RLY-046-RB2-B Turb Driven Aux FW Pump Vlv SEP Relay 708 ESEP Chatter 1.4 425 WBN-2-RLY-046-RBS-S AFPT Pump 2-FCV-1-51 MtrDrVlv 2-LCV-3-171 & 148 708 ESEP Chatter 1.4 Rizzo Relay Report 426 WBN-2-RLY-046-SST-S AFPT SUP Xfer FCV-1-15,-16 & -
51 Sep Relay 708 ESEP Chatter 1.79 427 WBN-1-RLY-046-0057-S Transfer Sw in Aux PosIsol Rly 692 ESEP Chatter 1.55 428 WBN-1-RLY-046-B002/1-S B2-1 Relay AFPT Trip & Throttle Vlv Photo Iso 692 ESEP Chatter 1.3 429 WBN-1-RLY-046-B002/2-S B2-2 Relay AFPT Trip & Throttle Vlv Photo Iso 692 ESEP Chatter 1.3 430 WBN-1-RLY-046-B002/3-S B2-3 Relay AFPT Speed Control InstrPwr 692 ESEP Chatter 1.55 431 WBN-1-RLY-046-BA-S BA & BB Relay AFPT Speed Control Buffer Relay 692 ESEP Chatter 1.79 432 WBN-1-RLY-046-BA1-S BA1 Relay AFPT Speed Control Buffer 692 ESEP Chatter 1.79
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 433 WBN-1-RLY-046-BB-S BA & BB Relay AFPT Speed Control Buffer Relay 692 ESEP Chatter 1.79 434 WBN-1-RLY-046-R/A-A Aux FW Pump Vlv Sep Relay 708 ESEP Chatter 1.4 435 WBN-1-RLY-046-R/B-B Aux FW Pump Vlv Sep Relay 708 ESEP Chatter 1.4 436 WBN-1-RLY-046-R1-S AFPT ACC Reset Relay 692 ESEP Chatter 1.79 437 WBN-1-RLY-046-R2-S AFPT ACC Reset Relay 692 ESEP Chatter 1.79 438 WBN-1-RLY-046-R4-A AFPT SUP Xfer FCV-1-15,-16 & -
51 Sep Relay TR A
708 ESEP Chatter 1.79 439 WBN-1-RLY-046-R5-A Aux Feed Pump TrbStm Supply Xfer Sep Relay TR A 708 ESEP Chatter 1.62 Rizzo Relay Report 440 WBN-1-RLY-046-RA1-A Turb/Mtr Driven Aux FW Pump Vlvs Aux Relay 708 ESEP Chatter 1.4 441 WBN-1-RLY-046-RA2-A Turb/Mtr Driven Aux FW Pump Vlv SSEP Relay 708 ESEP Chatter 1.4 442 WBN-1-RLY-046-RAS-S AFPT Pump 2-FCV-1-51 MtrDrVlv 2-LCV-3-156 & 164 692 ESEP Chatter 1.4 443 WBN-1-RLY-046-RB1-B Turb/Mtr Driven Aux FW Pump Vlvs Aux Relay 708 ESEP Chatter 1.4 444 WBN-1-RLY-046-RB2-B Turb Driven Aux FW Pump Vlv SEP Relay 708 ESEP Chatter 1.4 445 WBN-1-RLY-046-RBS-S AFPT Pump 2-FCV-1-51 MtrDrVlv 2-LCV-3-171 & 148 692 ESEP Chatter 1.4
Item #
UNID Description Elevation (ft)
IPEEE or ESEP Failure Mode HCLPF (g)
Elev Reference 446 WBN-1-RLY-046-SST-S AFPT SUP Xfer FCV-1-15,-16 & -
51 Sep Relay 692 ESEP Chatter 1.79 447 WBN-1-STR-046-0056A-S TDAFW Trip/Throttle Motor Starter 692 ESEP Functionality 0.57 448 WBN-2-STR-046-0056A-S TDAFW Trip/Throttle Motor Starter 692 ESEP Functionality 0.57 449 WBN-1-FSV 394 Reactor Vessel Head Vent Isolation Valve 725 ESEP Screened
> 0.5 WBNEQ-SOL-009 450 WBN-1-FSV 397 Reactor Vessel Head Vent Throttle Valve 725 ESEP Screened
> 0.5 451 WBN-2-FSV 395 Reactor Vessel Head Vent Isolation Valve 725 ESEP Screened
> 0.5 452 WBN-2-FSV 396 Reactor Vessel Head Vent Throttle Valve 725 ESEP Screened
> 0.5 WBNEQ-SOL-009