36C24419Q0974-016.pdf

Electrical Services & Systems 130 Commonwealth Drive

Warrendale, PA 15086

(724) 249-7307

GENERAL ORDER NUMBER: EPG5030.1,

SYWU072916.001

REPORT NUMBER: TQSIPG5030.1, TQSIPG10083.1

SUBMITTED BY: P. ZAVORA

www.EatonElectrical.com

SHORT-CIRCUIT, PROTECTIVE DEVICE

COORDINATION, AND ARC FLASH INCIDENT

ENERGY

ANALYSIS FOR

U.S. DEPARTMENT OF VETERANS AFFAIRS

H.J. HEINZ MEDICAL CENTER

ASPINWALL, PENNSYLVANIA

REVISION 3

DECEMBER 2016

http://www.eatonelectrical.com/

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TABLE OF CONTENTS

EXECUTIVE SUMMARY ....................................................................................... 1-1 1.0

1.1 General ...................................................................................................... 1-1

1.2 Objectives .................................................................................................. 1-1

1.3 Results and Recommendations .................................................................. 1-2

SHORT-CIRCUIT ANALYSIS................................................................................ 2-1 2.0

2.1 General ...................................................................................................... 2-1

2.2 Objectives .................................................................................................. 2-3

2.3 Equipment Evaluation ................................................................................ 2-4

2.4 Short-Circuit Results .................................................................................. 2-5

PROTECTIVE DEVICE COORDINATION STUDY ................................................ 3-1 3.0

3.1 General ...................................................................................................... 3-1

3.2 Objectives .................................................................................................. 3-1

3.3 Codes and Standards ................................................................................ 3-1

3.4 Coordination Data ...................................................................................... 3-2

3.5 Coordination Results .................................................................................. 3-2

3.6 Time-Current Characteristic Plots .............................................................. 3-5

RECOMMENDED PROTECTIVE DEVICE SETTINGS ......................................... 4-1 4.0

ARC FLASH INCIDENT ENERGY ANALYSIS ..................................................... 5-1 5.0

5.1 General ...................................................................................................... 5-1

5.2 Objectives .................................................................................................. 5-2

5.3 Arc Flash Incident Energy Analysis Results ............................................... 5-3

5.4 Arc Flash Summary Table Heading Descriptions ....................................... 5-4

5.5 Arc Flash Incident Energy Analysis Recommendations .............................. 5-5

SYSTEM DATA ..................................................................................................... 6-1 6.0

SHORT-CIRCUIT INPUT REPORT ....................................................................... 7-1 7.0

SHORT-CIRCUIT RESULTS ................................................................................. 8-1 8.0

APPLICABLE CODES AND STANDARDS .......................................................... 9-1 9.0

ONE-LINE DIAGRAM INDEX .............................................................................. 10-1 10.0

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EXECUTIVE SUMMARY 1.0

1.1 General

This summary report contains the results of analyses performed on the electrical distribution system for the H.J. Heinz Medical Center, Aspinwall, Pennsylvania. The purpose of this study is to evaluate the existing electrical system. data and necessary modeling assumptions are provided under Section 6.

Revision two included the analysis of Building #71.

Revision three includes the analysis of new equipment that includes ATS-4, ATS-4A, ATS-5A, ATS-5B, ATS-6A, ATS-6B, ATS-7A, DP-CR, and an enclosed breaker that feeds ATS-4.

1.2 Objectives

1. Short-Circuit Analysis

Perform a short-circuit study on the electrical distribution system shown in order to determine the available fault current at pertinent locations throughout the distribution system. The scope of the study includes:

• Analysis begins at the incoming 4.16 kV utility service, continues through the low voltage substations, and ends at the low voltage panelboards and motor control centers, as shown on the one-line diagrams in Section 10.0.

The available fault currents determined by the short-circuit study will be used in the electrical distribution analyses.

2. Equipment Evaluation

Evaluate the short-circuit ratings of existing protective devices and other distribution equipment supplied by Eaton under this contract.

3. Coordination Study

Review the existing system overcurrent protection and coordination. Where applicable, provide suggestions for improvement.

4. Arc Flash Analysis

Perform an arc flash incident energy analysis per NFPA 70E on the electrical distribution system as per Eaton’s scope of work.

An incident energy analysis is defined by NFPA 70E to be a component of an arc flash risk assessment used to predict the incident energy of an arc flash for a specified set of conditions.

5. Recommendations

Provide specific recommendations for improving the electrical distribution system performance and correcting any deficiencies found by the studies.

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1.3 Results and Recommendations

1. Short-Circuit Study

Cases for normal and emergency operation are evaluated. See Section 2, Section 7, and Section 8 for more information.

2. Equipment Evaluation

The Equipment Evaluation is based on the power system worst-case short-circuit current configuration. The short-circuit ratings of protective devices and other distribution equipment are evaluated in Section 2, Table 2.1.

In summary of Table 2.1, Table 2.2, and Table 2.3 all equipment included in the Building #71 addition has passed the equipment evaluation.

In summary of Table 2.1, the following equipment failed the equipment evaluation. It is recommended that the overdutied panelboards be reviewed for breaker and/or panelboard replacement to comply with the short-circuit current ratings required.

• Building 32 Panelboards B32-PNLA and B32-PP32B1

• Building 50 Panelboards B50U1-1ALA, B50U1-EC1E, B50U1-GALA, and

B50U1-GAPC

• Building 51 Panelboards B51A2-1ALE and B51A2 GALC.

• Building 50 Panelboard B50U1-ECGE

In summary of Table 2.1, Panelboard B50U1-ECGE in Building 50 has failed the equipment evaluation and are considered overdutied. This panelboard must be series rated in order to pass the equipment evaluation. "Series-rated" distribution equipment must be labeled in accordance with NEC Articles 110.22 and 240.86.

The short-circuit withstand ratings of low voltage disconnect switches are not evaluated in this study. Care should be taken in order to ensure that these devices are applied within their UL listed short-circuit withstand ratings. The typical withstand ratings for Cutler-Hammer disconnect switches (safety switches) range from 10,000A to 200,000A for certain fused types.

See Section 2 for detailed analysis and evaluation results.

3. Coordination Study

The time-current coordination plots of the protective overcurrent devices are shown in Section 3. In developing the device settings, consideration was given to the isolation of faults, protection of cables, and protection of transformers.

Efforts were made to provide the best coordination possible with the existing protective devices. It should be understood that coordination between two instantaneous trip units cannot be achieved for fault levels above the instantaneous pickup of the upstream device. There is some overlapping of curves that cannot be avoided.

All of the adjustable low voltage electronic trip and thermal magnetic circuit breakers and medium voltage equipment should be tested and adjusted according to the recommended settings given in Section 4.

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4. Protective Device Settings

Settings for all adjustable protective devices should be set as shown and recommended in Section 4.

The HMCP and motor overload devices in the motor control centers should be set per the Eaton equipment drawings and the Eaton motor control center instruction manual. The upstream protective devices shown in Section 4 are set to coordinate with these HMCP and motor overload devices, regardless of the final settings determined in the field for the HMCP and motor overload devices.

Each entry references a coordination plot number found in the Section 3. The referenced plot illustrates the coordination of the listed device with the relevant “upstream” and “downstream” protective devices.

5. Arc Flash Incident Energy Analysis

Details of the arc flash incident energy analysis are shown in Section 5. Please note for this study, the arc flash hazard has been calculated by performing an incident energy analysis. The results of this study can be used by qualified workers to determine the arc flash boundary and select appropriate arc flash PPE as part of an overall arc flash risk assessment. NFPA 70E Table H.3(b) provides guidance on the selection of arc rated clothing and other PPE based on the results of an incident energy analysis. It is the responsibility of the employer and qualified person(s) to conduct an overall arc flash risk assessment as detailed in NFPA 70E-2015 Article

130.5 before the commencement of work on electrical equipment. The risk associated with performing energized electrical work will vary based on the work being performed as well as the condition of the equipment and other factors that can be best determined by a qualified person in the field.

In summary, there are locations that have incident energy levels that are above 40 cal/cm2, refer to Section 5 for detailed information.

According to NFPA 70E Article 130.7(A), Informational Note 3, it may be necessary to place greater emphasis on establishing an electrically safe work condition when working within the limited approach boundary at locations where the incident energy exceeds 40 cal/cm2. The greater emphasis is due to additional hazards created from blast pressure associated with a possible arc. The PPE requirements outlined in NFPA 70E only address the thermal hazards associated with arc flash events and do not provide protection against other possible physical trauma resulting from an arc flash event. See NFPA 70E Article 120 for details on establishing an electrically safe work condition.

a) Reducing Incident Energy Levels: The calculated incident energy at a particular location is dependent on three main factors: short-circuit current, distance, and time. These three factors directly affect the incident energy in the following manner:

Short-circuit current: The short-circuit current for a given power system is dependent on the system impedance and source fault current, and cannot be easily reduced.

Distance: IEEE Std 1584™ provides a table with typical working distances.

Increasing the working distance reduces the amount of incident energy that reaches the worker; however it becomes difficult to perform many work tasks with

VAMC Heinz 1-4 an increased working distance, therefore, this is not an optimal solution for most cases.

Time: The incident energy decreases when reducing the exposure time of the arc. This exposure time is directly related to the clearing time of the protective device(s) which feed the fault location.

Based on the preceding summary, arc flash mitigation techniques are most effective and feasible when they involve reducing the arc exposure time. In many locations, the setting of the protective device can be adjusted in order to decrease the interrupting time, resulting in a decreased incident energy. Revised settings recommendations to reduce incident energy levels and/or improve system coordination are as follows below. This list of relays and breakers which have new recommended settings is also in Section 3.5.

• R-B55-SGA-MAIN

• R-B55-SGB-MAIN

• R-B55-SGA-11

• R-B55-SGB-15

• 71-DPBH-MAIN

• 71-DSBL-MAIN

• B71-DSWG-T-1

• 71-DSBL-71-1LA

• 71-DSBL-71-1LB

• 71-DSBL-71-1LC

• 71-DSBL-71-1LD

• 71-DSBL-71-1LF

• 71-DSBL-71-1LG

• 71-DSBL-71-1LH

• 71-DSBL-71-1LI

• B71-DSWG-71-BHA

• B71-DSWG-71-1HC

• B71-DSWG-71-1HA

• B71-DSWG-ATS-ELEV (Note: The LTPU was increased to 1.0)

• B71-DSWG-ATS-LS (Note: The LTPU was increased to 1.0)

• 71-LSBHA-71-LS1HA

• B71-DSWG-ATS-CC (Note: The LTPU was increased to 1.0)

• GEN BKR (Local breaker for 750KW generator)

• 71-EBHA-MAIN

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• 71-EBHA-ATS-EQ

The other option involving reducing the arc exposure time is to consider equipment modifications and upgrades. Several solutions include upgrading trip units, installing “maintenance switches”, and using relays with multiple settings groups. Each specific location needs to be analyzed to determine which reduction method is best employed.

NFPA 70E requires that the method used to determine the arc flash boundary and select PPE for use within the arc flash boundary be updated:

• Every five years (at minimum)

• When the electrical system is modified or renovated in any way, including renovations, additions, or subtractions to the system

6. Testing and Preventative Maintenance

The 2015 edition of NFPA 70E Section 205.3 and 205.4 requires that regularly scheduled testing and preventative maintenance be performed to ensure that the electrical distribution equipment continues to perform at an optimum level. Testing should entail primary injection testing of all circuit breakers to verify proper tripping ranges, contact resistance testing, insulation resistance testing and complete switchgear and transformer cleaning and inspection. Refer to NFPA-70B for specific types of testing and interval recommendations. The industry generally performs breaker testing every 3-5 years.

7. Predictive Diagnostics Using Continuous Partial Discharge Measurements

Eaton recommends conducting Continuous Partial Discharge measurements on most medium voltage power transformers, bus ducts, switchgear, motors, generators, terminations, and splices of transmission and distribution cables. Partial Discharge (PD) analysis is a non-invasive, online method of collecting, filtering, and evaluating PD occurring in electrical apparatus. The goals are:

• To detect partial discharges as a result failing or compromised insulation

• To analyze the partial discharge activity, and if an insulation defect is detected:

• Make conclusions as to the severity of the defect.

• Advise as to possible defect locations and possible cause(s) of the defect.

• Advise as to urgency of inspection.

• Suggest preventive measures both immediate and long term.

Electrical insulation is very important to monitor as it defines a major item in the reliability of electrical machines. Continuous Partial Discharge on-line monitoring using the Eaton InsulGard™ is the most sensitive and reliable method for detecting failing insulation. PD monitoring when used in conjunction with Eaton’s RM™ system offers customers the added benefit of prompt expert analysis and recommendation.

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8. Overdutied Equipment

It is recommended that the over-dutied panelboards listed below be reviewed for panelboard/breaker replacement to comply with the short-circuit current ratings required. See Section 2 for detailed short-circuit analysis.

• Building 32 Panelboards B32-PNLA and B32-PP32B1

• Building 50 Panelboards B50U1-1ALA, B50U1-EC1E, B50U1-GALA, and

B50U1-GAPC

• Building 51 Panelboards B51A2-1ALE and B51A2 GALC

9. Reducing Arc Flash Risk Through De-Energization

For Category Dangerous Locations B32-ATS-A, B32-ATS-B, B32-ESWBD-A, and B32-ESWBD-B, the equipment can be de-energized without causing an outage because of the redundancy in the Data Center electrical system.

10. Reducing Arc Flash Risk by Adding Protective Devices

For Category Dangerous Locations B69-MSB and B70-MSA, the arc flash risk could be reduced to a Category 4 by adding a relay and vacuum interrupter immediately upstream of the Building 69 Substation Transformer and Building 70 Substation Transformer.

11. Reducing Arc Flash Risk Through Reduced Breaker Settings

For Category Dangerous Locations B32-BYP-PNLA, B32-BYP-PNLB, B32-DP-A, and B32-DP-B, the arc flash risk could be reduced to a Category 4 by lowering the upstream breaker settings. However, this would result in a miscoordination.

12. Breaker Plug Ratings

The following breaker plug rating changes should be made in order to protect downstream cables:

Building 50 Unit Substation 1 breakers #20 and #21 should be changed from 600A to 500A.

Both 600A breakers in Panelboard B50U1-ELCG should be changed to 400A.

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SHORT-CIRCUIT ANALYSIS 2.0

2.1 General

The short-circuit study determines the fault currents that flow in the system during various fault conditions. A system model was created using SKM Systems Analysis software. The calculated fault currents are used in the device evaluation and coordination studies. See Section 7 and Section 8 for the computer generated input data and output data. NEC-2014, Article 110.24(A) requires that service entrance equipment is labeled with the following pieces of information:

• Maximum available fault current

• Date on which the fault current was calculated

Article 110.24(B) adds that if there is a modification that may change this fault current value, it must be recalculated. The field marking must be updated to reflect the new value of maximum fault current.

Separate “Z” (complex), “X” (reactive), and "R" (resistive) networks are used for the short-circuit analysis. Complex network reduction and the relationship E/Z are used to calculate the fault current magnitude and angle at each faulted bus. The complex equivalent circuit impedance, Z, is calculated by the reduction of the “Z” (complex) network. The X/R ratios calculated for each fault condition are based on the separate reduction of the X and R networks. These X/R ratios are used for the calculation of fault duty multipliers, to evaluate the short-circuit ratings of system components.

The software is capable of generating three types of short-circuit reports for both balanced (three-phase bolted) and unbalanced (line-to-ground) faults. The reports that are generated depend on the system that is being evaluated.

The three types of short-circuit reports are:

• Fault Report (for low voltage)

• Momentary Duty Report (for medium voltage)

• Interrupting Duty Report (for medium voltage)

1. Fault Report

The fault currents reported in the “Fault Report” are applicable to low voltage devices and components. The fault currents calculated in this report are based on the contribution data derived from IEEE Std C37.13™. The fault currents are calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the first cycle duty multipliers described in IEEE Std 141™.

• The complex equivalent circuit impedance, Z, is calculated by network reduction of the “Z” (complex) network.

• The momentary symmetrical current = E/Z.

• The X/R ratio is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

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Multiplying factors are determined, and used to adjust the calculated symmetrical fault current. The adjusted current is used to evaluate low voltage protective devices. Low voltage output algorithms and output reports reflect NEMA AB-1 molded case breaker de-rating multipliers. Breakers are de-rated for circuits where the power factor is lower than the NEMA test circuit (higher X/R ratio). The multipliers adjust the symmetrical fault current to the value associated with the systems fault point X/R ratio. The adjusted value listed on the report may then be compared directly with the manufacturer's published interrupting rating.

2. Momentary Duty Report

The “Momentary Duty Report” contains the calculated fault currents that occur during the first half-cycle of the fault. The momentary fault currents are used to evaluate medium and high voltage fuses, and the “closing and latching” capability (momentary rating) of medium and high voltage breakers. The fault currents reported in the “Momentary Duty Report” are calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the first cycle duty multipliers described in IEEE Std 141.

• The complex equivalent circuit impedance, Z, is calculated by network reduction of the “Z” (complex) network.

• The momentary symmetrical current = E/Z.

• The X/R ratio reported is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

• The momentary asymmetrical current is calculated and reported in two different ways, once as “sym*1.6” and again as “momentary based on X/R”. The “sym*1.6” value is the momentary symmetrical current multiplied by 1.6. The “momentary based on X/R” value is the momentary symmetrical current multiplied by

( )( )e RX21 2+ − π

3. Interrupting Duty Report

The fault currents reported in the “Interrupting Duty Report” are used to evaluate the interrupting rating of medium- and high-voltage breakers. The interrupting symmetrical current is calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the interrupting duty multipliers described in IEEE Std 141.

• The complex equivalent circuit impedance, Z, is calculated by network reduction of the “Z” (complex) network.

• The interrupting symmetrical current = E/Z.

• The X/R ratio reported is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

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• The calculated X/R ratio is used to determine the minimum contact parting time multiplying factors for 2, 3, 5, and 8 cycle breakers. The multiplying factors are based on IEEE Std C37.5™ and IEEE Std C37.010™ standards. The multiplying factors are applied to the interrupting symmetrical current in order to calculate the RMS short-circuit current interrupting duty for 2, 3, 5, and 8 cycle breakers. This duty is compared to the symmetrical current interrupting rating of the circuit breaker. NACD (No AC Decrement) ratios are calculated with consideration of generator "Local" and "Remote" contributions as outlined in IEEE Std C37.010™.

• Motor and generator impedance multipliers for the short-circuit calculations are summarized in the following table. This is based on the recommended combination network for comprehensive multi-voltage system calculations (from IEEE Std 141:

Machine Type

Impedance (First Cycle

Duty)

Impedance (Interrupting

Duty)

Turbine generators, Condensers, Hydrogenerators with amortisseur windings

1.0 Xd" 1.0 Xd"

Synchronous motors 1.0 Xd" 1.5 Xd"

Induction motors > 1000 hp at speed ≤ 1800 RPM, or > 250 hp at 3600 RPM.

1.0 Xd" 1.5 Xd"

Induction motors ≥ 50 hp not covered above. 1.2 Xd" 3.0 Xd"

Induction motors < 50 hp 1.67 Xd" Neglect

Note: Xd" is the subtransient reactance of the rotating machine.

2.2 Objectives

The objective of the short-circuit analysis is to calculate the maximum short-circuit currents produced by balanced three-phase and unbalanced faults at each bus shown on the one-line diagrams.

1. Short-Circuit System Model

The system was modeled for worst-case fault currents. Short-circuit currents were calculated for a three-phase bolted fault and single-line-to-ground fault at each bus shown on the study one-line diagrams.

a) Evaluated Short-Circuit Cases:

The following short-circuit study cases were evaluated:

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Study Case No. 1 – Normal Operation

Main and Tie breakers at the Building 55 Main Switchgear configured as follows:

• B55-SGA-MAIN (Pine Creek) - CLOSED

• B55-SGB-MAIN (Highland) - CLOSED

• B55-SGA-TIE-SGB - OPEN

Study Case No. 2 – Emergency Operaton:

• Utility Service - OFF-LINE

• Automatic Transfer Switches - Set to the EMERGENCY position

• Emergency Generators - ON-LINE

2.3 Equipment Evaluation

The purpose of the equipment evaluation is to compare the maximum calculated short-circuit currents to the short-circuit ratings of protective devices. The comparison is made in order to determine if the device can interrupt or withstand the available fault currents of the electrical system to which the device is applied, as required by NEC Articles 110.9 and 110.10. The device evaluation follows the evaluation procedures outlined in IEEE Std C37.13, IEEE Std C37.010, IEEE Std C37.5, IEEE Std C37.41™, IEEE Std 1015™, and applicable ANSI, NEMA, and UL standards.

The results of the short-circuit equipment evaluation are summarized in Error!

Reference source not found., Table 2.2, and Table 2.3. The tables indicates “Bus I.D.” (corresponds to bus designations used in the one-line diagrams, “Manufacturer”, “Status” (Pass, fail, unknown, or marginal), “Type” (equipment category), “Equip Volts”, calculated short-circuit duty, the equipment short-circuit rating, the series rating (if applicable), and the maximum duty rating.

The maximum duty rating is calculated by:

RatingCDeviceS dutyCS

For equipment with series ratings, the maximum duty rating is calculated using the series rating instead of the individual device short-circuit rating. All short-circuit current values are reported in units of kA.

1. For low voltage devices:

The calculated short-circuit duty is reported under “Calc Isc (kA)" and the device short-circuit rating is reported under "Equip Isc (kA)". The calculated duty has been adjusted accordingly per the system X/R and device test X/R.

2. For medium/high voltage breakers:

The calculated interrupting short-circuit duty is reported under "Calc Isc (kA)" and the breaker short-circuit interrupting rating is reported under "Equip Isc (kA)". The interrupting duty has been adjusted per multiplying factors based on the breaker

VAMC Heinz 2-5 clearing time and system X/R. The calculated momentary duty (i.e. close-and-latch duty) is reported under "Calc Mom (kA)". The breaker momentary (i.e. close-and-latch) rating is reported under "Equip Msc (kA)".

3. For medium/high voltage fuses, switches, and motor starters:

The calculated momentary symmetrical short-circuit duty is reported under "Calc Isc (kA)" and the device's momentary symmetrical short-circuit rating is reported under "Equip Isc (kA)". The calculated momentary asymmetrical duty is reported under "Calc Mom (kA)". The device's momentary asymmetrical short-circuit rating is reported under "Equip Mom (kA)".

2.4 Short-Circuit Results

Information used in modeling the power system to provide conservative, worst-case results is listed in Section 6. The results of the short-circuit analysis, including calculated branch contributions, are provided under Section 8. The one-line diagrams with referenced bus identification are included in Section 10.

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Table 2.1 – Medium Voltage Equipment Evaluation

Bus Manufacturer Status Type Bus Calc Dev Isc Calc Dev Mom

Voltage Isc kA Isc kA Rating% Mom kA Mom kA Rating%

B50U1-SW-B50U1 GOULD SHAWMUT Pass MV Switchgear 4160 5.68 63.00 9.02 8.82 100.00 8.82 B51A1-SW-B51A1 GOULD SHAWMUT Pass MV Switchgear 4160 5.77 63.00 9.16 9.06 100.00 9.06 B51A2-SW-B51A2 GOULD SHAWMUT Pass MV Switchgear 4160 5.77 63.00 9.16 9.08 100.00 9.08

B51A3-SW-B51A3 GOULD SHAWMUT Pass MV Switchgear 4160 5.78 63.00 9.18 9.10 100.00 9.10

B51B1-SW-B51B1 GOULD SHAWMUT Pass MV Switchgear 4160 5.76 63.00 9.15 9.04 100.00 9.04

B51B2-SW-B51B2 GOULD SHAWMUT Pass MV Switchgear 4160 5.77 50.00 11.54 9.07 80.00 11.34

B52-CHILL-1 WESTINGHOUSE Pass MV Starter 4160 5.50 40.00 13.74 8.76 64.00 13.69

B52-CHILL-2 WESTINGHOUSE Pass MV Starter 4160 5.50 40.00 13.74 8.76 64.00 13.68

B52-CHILL-3 FEDERAL PACIFIC Pass MV Switchgear 4160 5.50 25.00 21.99 8.75 40.00 21.88

B52-SW-B52 GE Pass MV Switchgear 4160 5.43 50.00 10.87 8.14 80.00 10.18

B52-SW-CHILL-B52 CUTLER-HAMMER Pass MV Switchgear 4160 5.52 40.00 13.80 8.81 64.00 13.77

B55-SGA GE Pass MV Switchgear 4160 6.21 29.00 21.41 10.38 58.00 17.90

B55-SGB GE Pass MV Switchgear 4160 5.51 29.00 18.99 8.01 58.00 13.80

B55-SGA-11- DISC GE Pass MV Switchgear 4160 6.21 25.00 24.83 10.38 40.00 25.94

B55-SGB-15- DISC GE Pass MV Switchgear 4160 6.07 25.00 24.28 9.92 40.00 24.80

B63-SW-B68 CUTLER-HAMMER Pass MV Switchgear 4160 5.33 40.00 13.32 7.87 64.00 12.30

B69-SW-T1-B69 CUTLER-HAMMER Pass MV Switchgear 4160 5.29 40.00 13.21 7.77 64.00 12.14

B70-SW-B70 CUTLER-HAMMER Pass MV Switchgear 4160 5.64 50.00 11.28 8.65 80.00 10.81

B32-SW-T1-B32 GE Pass MV Fuse 4160 5.43 50.00 10.87 8.14 80.00 10.18

B32-SW-T2-B32 COOPER Pass MV Fuse 4160 6.13 50.00 12.25 10.11 80.00 12.64

B49-SW-B49 COOPER Pass MV Fuse 4160 5.43 50.00 10.86 8.12 80.00 10.15

SW-B71-T1 MAIN DISC GE Pass MV Switchgear 4160 5.86 25.00 23.45 9.17 40.00 22.91

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Table 2.2 – Low Voltage Equipment Evaluation – Normal Operation Case

Bus Manufacturer Status Type Bus Calc Dev Series Isc

Voltage Isc kA Isc kA Rating kA Rating%

ATS-4 ASCO Pass ATS 208 34.29 50.00 68.58

ATS-4A ASCO Pass ATS 480 18.77 42.00 44.68

ATS-5A ASCO Pass ATS 480 18.80 42.00 44.76

ATS-5B ASCO Pass ATS 480 21.90 (*N1) 42.00 52.14

ATS-6A ASCO Pass ATS 480 18.95 42.00 45.11

ATS-6B ASCO Pass ATS 480 21.89 (*N1) 42.00 52.11

ATS-7A ASCO Pass ATS 480 19.22 42.00 45.77

B32-PNLA WESTINGHOUSE Fail LV Panelboard 208 *11.68 10.00 *116.83

B32-PP32B1 SQUARE D Fail LV Panelboard 208 *15.82 10.00 *158.21

B50U1-1ALA CUTLER-HAMMER Fail LV Panelboard 208 *13.30 10.00 *133.01

B50U1-EC1E WESTINGHOUSE Fail LV Panelboard 208 *10.64 10.00 *106.40

B50U1-GALA WESTINGHOUSE Fail LV Panelboard 208 *23.51 (*N1) 10.00 *235.07

B50U1-GAPC WESTINGHOUSE Fail LV Panelboard 208 *23.07 22.00 *104.87

B51A2-1ALE WESTINGHOUSE Fail LV Panelboard 208 *17.86 10.00 *178.62

B51A2-GALC WESTINGHOUSE Fail LV Panelboard 208 *19.06 (*N1) 10.00 *190.58

B32-A1 CUTLER-HAMMER Pass LV Panelboard 480 13.73 14.00 98.08

B32-ATS-1 ASCO Pass LV Transfer Switch 208 14.37 35.00 41.06

B32-ATS-A CATERPILLAR Pass LV Transfer Switch 480 15.05 50.00 30.10

B32-ATS-A1 CATERPILLAR Pass LV Transfer Switch 480 13.94 35.00 39.82

B32-ATS-B CATERPILLAR Pass LV Transfer Switch 480 14.92 50.00 29.85

B32-ATS-B1 CATERPILLAR Pass LV Transfer Switch 480 13.86 35.00 39.60

B32-B1 CUTLER-HAMMER Pass LV Panelboard 480 13.65 14.00 97.51

B32-BYP-PNL-A CUTLER-HAMMER Pass LV Panelboard 480 12.96 35.00 37.02

B32-BYP-PNL-B CUTLER-HAMMER Pass LV Panelboard 480 9.34 35.00 26.70

B32-DP WESTINGHOUSE Pass LV Panelboard 208 18.49 22.00 84.05

B32-DP-A CUTLER-HAMMER Pass LV Panelboard 480 11.61 14.00 82.91

VAMC Heinz 2-8

Bus Manufacturer Status Type Bus Calc Dev Series Isc

Voltage Isc kA Isc kA Rating kA Rating%

B32-DP-B CUTLER-HAMMER Pass LV Panelboard 480 10.25 14.00 73.22

B32-EB WESTINGHOUSE Pass LV Panelboard 208 4.67 100.00 4.67

B32-EC WESTINGHOUSE Pass LV Panelboard 208 6.04 100.00 6.04

B32-EMPD CUTLER-HAMMER Pass LV Switchboard 480 9.52 (*N1) 65.00 14.64

B32-ESWBD-A CUTLER-HAMMER Pass LV Panelboard 480 14.92 65.00 22.96

B32-ESWBD-B CUTLER-HAMMER Pass LV Panelboard 480 14.80 65.00 22.77

B32-GEN SQUARE D Pass LV Enclosed Breaker 208 2.20 (*N1) 10.00 22.03

B32-MDS CUTLER-HAMMER Pass LV Switchgear 480 15.31 65.00 23.55

B32-NE1A CUTLER-HAMMER Pass LV Panelboard 208 3.30 22.00 15.02

B32-NE2A CUTLER-HAMMER Pass LV Panelboard 208 2.74 22.00 12.43

B32-NEAC CUTLER-HAMMER Pass LV Panelboard 208 3.22 22.00 14.61

B32-PDU-A POWERWARE Pass LV Panelboard 208 7.42 (*N1) 10.00 74.21

B32-PDU-B POWERWARE Pass LV Panelboard 208 7.42 (*N1) 10.00 74.21

B32-PDU-C POWERWARE Pass LV Panelboard 208 7.42 (*N1) 10.00 74.21

B32-PDU-D POWERWARE Pass LV Panelboard 208 7.10 10.00 71.04

B32-PDU-E POWERWARE Pass LV Panelboard 208 7.10 10.00 71.04

B32-PNLB WESTINGHOUSE Pass LV Panelboard 208 9.81 10.00 98.15

B32-PNLC WESTINGHOUSE Pass LV Panelboard 208 8.69 10.00 86.93

B32-PNLEA CUTLER-HAMMER Pass LV Panelboard 208 7.41 100.00 7.41

B32-PNLNA FEDERAL PACIFIC Pass LV Panelboard 208 9.22 10.00 92.21

B32-PNLNB FEDERAL PACIFIC Pass LV Panelboard 208 5.47 10.00 54.71

B32-RD CUTLER-HAMMER Pass LV Panelboard 208 4.94 22.00 22.45

B32-TC WESTINGHOUSE Pass LV Panelboard 208 5.06 100.00 5.06

B49-EBHA CUTLER-HAMMER Pass LV Panelboard 480 8.40 14.00 60.02

B49-EBHB CUTLER-HAMMER Pass LV Panelboard 480 8.97 (*N1) 14.00 64.08

B49-EBMDP CUTLER-HAMMER Pass LV Panelboard 480 8.91 35.00 25.46

B49-EBRA CUTLER-HAMMER Pass LV Panelboard 208 5.04 10.00 50.36

B49-EBRB CUTLER-HAMMER Pass LV Panelboard 208 3.30 10.00 33.01

VAMC Heinz 2-9

Voltage Isc kA Isc kA Rating kA Rating%

B49-EBRC CUTLER-HAMMER Pass LV Panelboard 208 3.74 10.00 37.41

B49-MDP GE Pass LV Panelboard 208 3.70 22.00 16.82

B49-PNLA GE Pass LV Panelboard 208 3.65 22.00 16.57

B49-PNLB GE Pass LV Panelboard 208 2.58 22.00 11.72

B49-PNLC GE Pass LV Panelboard 208 3.19 22.00 14.50

B49-PNLD GE Pass LV Panelboard 208 2.61 22.00 11.84

B49-PNLE GE Pass LV Panelboard 208 3.20 22.00 14.52

B50-EMD WESTINGHOUSE Pass LV Panelboard 480 9.60 (*N1) 35.00 27.41

B50-EPD1 CUTLER-HAMMER Pass LV Switchboard 480 9.60 (*N1) 65.00 14.76

B50-GEN CATERPILLAR Pass LV Enclosed Breaker 480 8.06 35 23.03

B50-TX1-ATS CUTLER-HAMMER Pass LV Enclosed Breaker 208 6.34 65.00 9.76

B50U1-1APA WESTINGHOUSE Pass LV Panelboard 208 15.10 22.00 68.63

B50U1-1APB WESTINGHOUSE Pass LV Panelboard 208 17.56 22.00 79.82

B50U1-1ELA WESTINGHOUSE Pass LV Panelboard 208 16.65 22.00 75.69

B50U1-1EPA WESTINGHOUSE Pass LV Panelboard 208 9.23 22.00 41.94

B50U1-1EPB WESTINGHOUSE Pass LV Panelboard 208 8.96 22.00 40.71

B50U1-1EPC WESTINGHOUSE Pass LV Panelboard 208 8.96 22.00 40.71

B50U1-1WLA WESTINGHOUSE Pass LV Panelboard 208 10.62 22.00 48.28

B50U1-1WPA WESTINGHOUSE Pass LV Panelboard 208 10.75 22.00 48.88

B50U1-1WPB WESTINGHOUSE Pass LV Panelboard 208 10.02 22.00 45.53

B50U1-1WPC WESTINGHOUSE Pass LV Panelboard 208 10.15 22.00 46.14

B50U1-AC-1 WESTINGHOUSE Pass LV Enclosed Breaker 480 2.33 25.00 9.34

B50U1-ATS-1 ASCO Pass LV Transfer Switch 208 33.20 50.00 66.40

B50U1-ATS-2 ASCO Pass LV Transfer Switch 208 16.78 35.00 47.95

B50U1-ATS-3 ASCO Pass LV Transfer Switch 208 34.14 50.00 68.28

B50U1-EC1W WESTINGHOUSE Pass LV Panelboard 208 7.82 10.00 78.22

B50U1-ECGA WESTINGHOUSE Pass LV Panelboard 208 14.22 22.00 64.62

B50U1-ECGE WESTINGHOUSE Pass LV Panelboard 208 10.64 10.00 22.00 48.36

VAMC Heinz 2-10

Voltage Isc kA Isc kA Rating kA Rating%

B50U1-ECGS WESTINGHOUSE Pass LV Panelboard 208 24.91 65.00 38.33

B50U1-ECGW WESTINGHOUSE Pass LV Panelboard 208 7.82 10.00 78.22

B50U1-ECPH WESTINGHOUSE Pass LV Panelboard 208 5.63 10.00 56.34

B50U1-EL1A WESTINGHOUSE Pass LV Panelboard 208 6.66 22.00 30.29

B50U1-ELCG WESTINGHOUSE Pass LV Panelboard 208 6.32 42.00 15.05

B50U1-ELGA WESTINGHOUSE Pass LV Panelboard 208 7.03 22.00 31.94

B50U1-ELGB WESTINGHOUSE Pass LV Panelboard 208 6.33 22.00 28.79

B50U1-ELGS WESTINGHOUSE Pass LV Panelboard 208 8.36 22.00 38.00

B50U1-GALB WESTINGHOUSE Pass LV Panelboard 208 13.74 22.00 62.46

B50U1-GAPA WESTINGHOUSE Pass LV Panelboard 208 18.59 22.00 84.49

B50U1-GAPB WESTINGHOUSE Pass LV Panelboard 208 17.01 22.00 77.32

B50U1-GELA WESTINGHOUSE Pass LV Panelboard 208 17.14 22.00 77.92

B50U1-GEPA WESTINGHOUSE Pass LV Panelboard 208 9.77 10.00 97.75

B50U1-GEPB WESTINGHOUSE Pass LV Panelboard 208 8.96 22.00 40.71

B50U1-GEPC WESTINGHOUSE Pass LV Panelboard 208 8.75 22.00 39.77

B50U1-GWLA WESTINGHOUSE Pass LV Panelboard 208 10.87 22.00 49.41

B50U1-GWPA WESTINGHOUSE Pass LV Panelboard 208 11.17 22.00 50.76

B50U1-GWPB WESTINGHOUSE Pass LV Panelboard 208 10.39 22.00 47.23

B50U1-GWPC WESTINGHOUSE Pass LV Panelboard 208 10.46 22.00 47.55

B50U1-K WESTINGHOUSE Pass LV Panelboard 208 37.89 100.00 37.89

B50U1-MCCP1 WESTINGHOUSE Pass LV MCC 208 19.62 42.00 46.73

B50U1-MSB WESTINGHOUSE Pass LV Switchgear 208 47.70 (*N1) 65.00 73.39

B51-ATS1B-EM BUSSMANN Pass LV Switch 208 5.21 100.00 5.21

B51-ATS4B-1A WESTINGHOUSE Pass LV Panelboard 480 16.67 30.00 55.58

B51-ATS4B-1B WESTINGHOUSE Pass LV Panelboard 480 6.25 30.00 20.85

B51A1-1AHA WESTINGHOUSE Pass LV Panelboard 480 16.85 25.00 67.41

B51A1-1AHB WESTINGHOUSE Pass LV Panelboard 480 18.75 25.00 75.00

B51A1-1ALF CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.87

VAMC Heinz 2-11

Voltage Isc kA Isc kA Rating kA Rating%

B51A1-2AHA WESTINGHOUSE Pass LV Panelboard 480 10.08 14.00 71.97

B51A1-2ALD CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.88

B51A1-3AHA WESTINGHOUSE Pass LV Panelboard 480 8.93 14.00 63.75

B51A1-3ALD CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.88

B51A1-ATS-2A ASCO Pass LV Transfer Switch 480 10.80 35.00 30.85

B51A1-ATS-3A ASCO Pass LV Transfer Switch 480 11.97 35.00 34.20

B51A1-EL1A WESTINGHOUSE Pass LV Panelboard 480 9.40 14.00 67.16

B51A1-EL2A WESTINGHOUSE Pass LV Panelboard 480 6.84 14.00 48.84

B51A1-ELGA WESTINGHOUSE Pass LV Panelboard 480 8.16 14.00 58.31

B51A1-GAHA WESTINGHOUSE Pass LV Panelboard 480 12.37 14.00 88.35

B51A1-GALE CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.87

B51A1-GBLD CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.88

B51A1-MCC1A1 WESTINGHOUSE Pass LV Panelboard 480 13.66 30.00 45.53

B51A1-MCC2A1 WESTINGHOUSE Pass LV MCC 480 15.01 30.00 50.05

B51A1-MCC3A1 CUTLER-HAMMER Pass LV MCC 480 14.44 65.00 22.22

B51A1-MCCGA1 CUTLER-HAMMER Pass LV MCC 480 12.88 65.00 19.81

B51A1-MCCGB3 WESTINGHOUSE Pass LV MCC 480 14.53 30.00 48.42

B51A1-MSG WESTINGHOUSE Pass LV Switchgear 480 24.21 (*N1) 65.00 37.25

B51A151 EL3A WESTINGHOUSE Pass LV Panelboard 480 6.24 14.00 44.58

B51A2-1ALA WESTINGHOUSE Pass LV Panelboard 208 10.59 18.00 58.85

B51A2-1ALB WESTINGHOUSE Pass LV Panelboard 208 11.50 22.00 52.28

B51A2-1ALC WESTINGHOUSE Pass LV Panelboard 208 7.58 10.00 75.82

B51A2-2ALA WESTINGHOUSE Pass LV Panelboard 208 12.18 22.00 55.35

B51A2-2ALB WESTINGHOUSE Pass LV Panelboard 208 12.22 22.00 55.53

B51A2-2ALC WESTINGHOUSE Pass LV Panelboard 208 12.12 22.00 55.10

B51A2-3ALA WESTINGHOUSE Pass LV Panelboard 208 10.30 22.00 46.80

B51A2-3ALB WESTINGHOUSE Pass LV Panelboard 208 11.00 18.00 61.12

B51A2-3ALC WESTINGHOUSE Pass LV Panelboard 208 11.98 22.00 54.46

VAMC Heinz 2-12

Voltage Isc kA Isc kA Rating kA Rating%

B51A2-ALD CUTLER-HAMMER Pass LV Panelboard 208 7.17 10.00 71.75

B51A2-ATS-1A ASCO Pass LV Transfer Switch 208 18.90 35.00 54.01

B51A2-EC1A WESTINGHOUSE Pass LV Panelboard 208 10.73 22.00 48.76

B51A2-EC2A WESTINGHOUSE Pass LV Panelboard 208 8.47 (*N1) 10.00 84.73

B51A2-EC3A WESTINGHOUSE Pass LV Panelboard 208 7.46 22.00 33.90

B51A2-EC4A WESTINGHOUSE Pass LV Panelboard 208 6.96 22.00 31.64

B51A2-ECGA WESTINGHOUSE Pass LV Panelboard 208 9.78 22.00 44.45

B51A2-GALA WESTINGHOUSE Pass LV Panelboard 208 9.12 22.00 41.45

B51A2-GALB WESTINGHOUSE Pass LV Panelboard 208 9.86 22.00 44.81

B51A2-GALD WESTINGHOUSE Pass LV Panelboard 208 16.66 22.00 75.71

B51A2-GALF WESTINGHOUSE Pass LV Panelboard 208 10.32 22.00 46.90

B51A2-GALG WESTINGHOUSE Pass LV Panelboard 208 13.30 22.00 60.47

B51A2-MSG WESTINGHOUSE Pass LV Switchgear 208 30.78 65.00 47.35

B51A3-MDP WESTINGHOUSE Pass LV Switchgear 480 5.63 30.00 18.78

B51A3-XRA CUTLER-HAMMER Pass LV Panelboard 480 5.19 35.00 14.82

B51A3-XRA1 CUTLER-HAMMER Pass LV Panelboard 480 5.07 25.00 20.27

B51A3-XRAY-A WESTINGHOUSE Pass LV Panelboard 480 4.72 14.00 33.69

B51A3-XRAY-B WESTINGHOUSE Pass LV Panelboard 480 4.66 14.00 33.28

B51A3-XRB CUTLER-HAMMER Pass LV Panelboard 480 5.19 35.00 14.82

B51B1-1BHA WESTINGHOUSE Pass LV Panelboard 480 8.99 14.00 64.22

B51B1-1BHB WESTINGHOUSE Pass LV Panelboard 480 10.23 14.00 73.06

B51B1-1BLF CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.87

B51B1-2BHA WESTINGHOUSE Pass LV Panelboard 480 8.47 14.00 60.51

B51B1-2BLC CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.86

B51B1-3BHA WESTINGHOUSE Pass LV Panelboard 480 8.04 14.00 57.43

B51B1-3BLC CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.86

B51B1-ATS-2B ASCO Pass LV Transfer Switch 480 6.63 35.00 18.95

B51B1-ATS-3B ASCO Pass LV Transfer Switch 480 11.51 35.00 32.87

VAMC Heinz 2-13

Voltage Isc kA Isc kA Rating kA Rating%

B51B1-ATS4B ASCO Pass LV Transfer Switch 480 16.43 35.00 46.95

B51B1-EEGB CUTLER-HAMMER Pass LV Panelboard 208 0.79 10.00 7.89

B51B1-EL1B WESTINGHOUSE Pass LV Panelboard 480 5.93 14.00 42.37

B51B1-EL2B WESTINGHOUSE Pass LV Panelboard 480 5.57 25.00 22.30

B51B1-EL3B WESTINGHOUSE Pass LV Panelboard 480 5.26 25.00 21.02

B51B1-ELGB WESTINGHOUSE Pass LV Panelboard 480 6.33 14.00 45.24

B51B1-GBHA WESTINGHOUSE Pass LV Panelboard 480 9.47 14.00 67.61

B51B1-GBLC CUTLER-HAMMER Pass LV Panelboard 208 1.45 10.00 14.47

B51B1-K1 WESTINGHOUSE Pass LV Panelboard 480 10.23 14.00 73.06

B51B1-MCC1B1 WESTINGHOUSE Pass LV MCC 480 12.66 42.00 30.13

B51B1-MCC2B1 WESTINGHOUSE Pass LV MCC 480 11.93 30.00 39.76

B51B1-MCC3B1 WESTINGHOUSE Pass LV MCC 480 11.37 30.00 37.89

B51B1-MCCGB1 WESTINGHOUSE Pass LV MCC 480 17.46 30.00 58.21

B51B1-MCCGB2 WESTINGHOUSE Pass LV MCC 480 16.31 30.00 54.35

B51B1-MSG WESTINGHOUSE Pass LV Switchgear 480 25.63 (*N1) 35.00 73.24

B51B2-1BLA WESTINGHOUSE Pass LV Panelboard 208 9.02 22.00 41.01

B51B2-1BLB WESTINGHOUSE Pass LV Panelboard 208 8.41 (*N1) 10.00 84.07

B51B2-1BLC WESTINGHOUSE Pass LV Panelboard 208 9.11 (*N1) 10.00 91.07

B51B2-1BLD WESTINGHOUSE Pass LV Panelboard 208 8.67 (*N1) 10.00 86.68

B51B2-1BLE WESTINGHOUSE Pass LV Panelboard 208 5.59 10.00 55.87

B51B2-2BLA WESTINGHOUSE Pass LV Panelboard 208 7.92 (*N1) 10.00 79.24

B51B2-2BLB WESTINGHOUSE Pass LV Panelboard 208 9.24 (*N1) 10.00 92.39

B51B2-3BLA WESTINGHOUSE Pass LV Panelboard 208 8.29 (*N1) 10.00 82.89

B51B2-3BLB WESTINGHOUSE Pass LV Panelboard 208 8.28 (*N1) 10.00 82.82

B51B2-ATS-1B ASCO Pass LV Transfer Switch 208 9.21 35.00 26.31

B51B2-ATS-EK6 GE Pass LV Transfer Switch 208 8.67 35.00 24.76

B51B2-ATS-EK7 GE Pass LV Transfer Switch 208 8.67 35.00 24.76

B51B2-EC1B WESTINGHOUSE Pass LV Panelboard 208 5.90 (*N1) 10.00 59.03

VAMC Heinz 2-14

Voltage Isc kA Isc kA Rating kA Rating%

B51B2-EC2B WESTINGHOUSE Pass LV Panelboard 208 5.37 10.00 53.74

B51B2-EC3B WESTINGHOUSE Pass LV Panelboard 208 4.93 10.00 49.25

B51B2-ECGB WESTINGHOUSE Pass LV Panelboard 208 5.93 (*N1) 10.00 59.33

B51B2-ECGC WESTINGHOUSE Pass LV Panelboard 208 5.80 (*N1) 10.00 57.95

B51B2-EK6 GE Pass LV Panelboard 208 8.03 10.00 80.33

B51B2-EK7 GE Pass LV Panelboard 208 8.03 10.00 80.33

B51B2-GBLA WESTINGHOUSE Pass LV Panelboard 208 9.55 22.00 43.41

B51B2-GBLB WESTINGHOUSE Pass LV Panelboard 208 9.61 (*N1) 10.00 96.07

B51B2-K2 WESTINGHOUSE Pass LV Panelboard 208 8.53 65.00 13.13

B51B2-K3 WESTINGHOUSE Pass LV Panelboard 208 8.18 (*N1) 10.00 81.76

B51B2-K4 WESTINGHOUSE Pass LV Panelboard 208 8.08 (*N1) 10.00 80.83

B51B2-K5 WESTINGHOUSE Pass LV Panelboard 208 8.32 65.00 12.80

B51B2-MSG WESTINGHOUSE Pass LV Switchgear 208 31.10 65.00 47.85

B51B2-MUCONV UNKNOWN Pass LV Panelboard 208 9.24 (*N1) 10.00 92.39

B52-ATS ASCO Pass LV Transfer Switch 480 15.05 (*N1) 50.00 30.11

B52-C GE Pass LV Panelboard 208 2.74 10.00 27.37

B52-CA GE Pass LV Panelboard 480 13.20 14.00 94.28

B52-ECBA GE Pass LV Panelboard 480 12.11 14.00 86.47

B52-ELB WESTINGHOUSE Pass LV Panelboard 208 3.69 10.00 36.92

B52-ELBH GE Pass LV Enclosed Breaker 480 11.03 14.00 78.79

B52-GEN MERLIN GERLIN Pass LV Enclosed Breaker 480 4.79 (*N1) 30.00 15.96

B52-MCC1 WESTINGHOUSE Pass LV MCC 480 14.74 42.00 35.10

B52-MCC2 WESTINGHOUSE Pass LV MCC 480 14.80 42.00 35.24

B52-MSG GE Pass LV Switchgear 480 15.91 (*N1) 65.00 24.47

B53-G-LEFT GE Pass LV Panelboard 208 3.63 22.00 16.50

B53-G-RT GE Pass LV Panelboard 208 3.62 22.00 16.44

B53-GA-LEFT GE Pass LV Switchboard 480 9.82 25.00 39.27

B53-GA-RT GE Pass LV Panelboard 480 9.80 25.00 39.22

VAMC Heinz 2-15

Voltage Isc kA Isc kA Rating kA Rating%

B63-1LA CUTLER-HAMMER Pass LV Panelboard 208 3.85 22.00 17.51

B63-1LB CUTLER-HAMMER Pass LV Panelboard 208 4.59 22.00 20.86

B63-2LA CUTLER-HAMMER Pass LV Panelboard 208 3.56 22.00 16.18

B63-2LB CUTLER-HAMMER Pass LV Panelboard 208 4.19 22.00 19.06

B64-1LA CUTLER-HAMMER Pass LV Panelboard 208 6.07 22.00 27.61

B64-1LB CUTLER-HAMMER Pass LV Panelboard 208 4.59 22.00 20.88

B64-2LA CUTLER-HAMMER Pass LV Panelboard 208 5.46 22.00 24.82

B64-2LB CUTLER-HAMMER Pass LV Panelboard 208 4.20 22.00 19.08

B65-1LA CUTLER-HAMMER Pass LV Panelboard 208 4.59 22.00 20.88

B65-1LB CUTLER-HAMMER Pass LV Panelboard 208 5.06 22.00 22.99

B65-1LC CUTLER-HAMMER Pass LV Panelboard 208 5.60 22.00 25.47

B66-1LA CUTLER-HAMMER Pass LV Panelboard 208 4.11 22.00 18.69

B66-1LB CUTLER-HAMMER Pass LV Panelboard 208 3.71 22.00 16.86

B66-1LC CUTLER-HAMMER Pass LV Panelboard 208 3.37 22.00 15.33

B67-1LA CUTLER-HAMMER Pass LV Panelboard 208 4.39 22.00 19.97

B67-1LB CUTLER-HAMMER Pass LV Panelboard 208 4.71 22.00 21.40

B67-1LC CUTLER-HAMMER Pass LV Panelboard 208 5.61 22.00 25.51

B68-1LA CUTLER-HAMMER Pass LV Panelboard 208 6.23 22.00 28.33

B68-1LB CUTLER-HAMMER Pass LV Panelboard 208 5.18 22.00 23.55

B68-1LC CUTLER-HAMMER Pass LV Panelboard 208 4.38 22.00 19.92

B69&70-GEN MERLIN GERIN Pass LV Enclosed Breaker 480 3.07 (*N1) 35.00 8.76

B69-1LA CUTLER-HAMMER Pass LV Panelboard 208 8.24 22.00 37.46

B69-1LB CUTLER-HAMMER Pass LV Panelboard 208 13.70 22.00 62.29

B69-1LC-1 CUTLER-HAMMER Pass LV Panelboard 208 13.70 22.00 62.26

B69-1LC-2 CUTLER-HAMMER Pass LV Panelboard 208 13.53 22.00 61.50

B69-1LD CUTLER-HAMMER Pass LV Panelboard 208 3.57 22.00 16.22

B69-1LF CUTLER-HAMMER Pass LV Panelboard 208 3.48 22.00 15.82

B69-2LA CUTLER-HAMMER Pass LV Panelboard 208 6.26 22.00 28.44

VAMC Heinz 2-16

Voltage Isc kA Isc kA Rating kA Rating%

B69-2LB CUTLER-HAMMER Pass LV Panelboard 208 9.77 22.00 44.41

B69-2LC CUTLER-HAMMER Pass LV Panelboard 208 3.27 22.00 14.87

B69-ATS-EQNE ASCO Pass LV Transfer Switch 208 15.48 35.00 44.23

B69-ATS-LSNE ASCO Pass LV Transfer Switch 208 6.80 35.00 19.43

B69-EQNE CUTLER-HAMMER Pass LV Panelboard 208 14.33 22.00 65.12

B69-LSNE CUTLER-HAMMER Pass LV Panelboard 208 6.23 22.00 28.33

B69-MSB CUTLER-HAMMER Pass LV Switchboard 208 26.95 65.00 41.46

B70-ATS-LA ASCO Pass LV Transfer Switch 480 11.70 35.00 33.42

B70-ATS-QA ASCO Pass LV Transfer Switch 480 13.78 35.00 39.36

B70-LH1A1 CUTLER-HAMMER Pass LV Panelboard 480 6.13 14.00 43.82

B70-LH2A1 CUTLER-HAMMER Pass LV Panelboard 480 5.85 14.00 41.80

B70-LHBA1 CUTLER-HAMMER Pass LV Panelboard 480 10.06 35.00 28.75

B70-LL1A1 CUTLER-HAMMER Pass LV Panelboard 208 0.74 22.00 3.37

B70-LL2A1 CUTLER-HAMMER Pass LV Panelboard 208 0.73 22.00 3.33

B70-LLBA1 CUTLER-HAMMER Pass LV Panelboard 208 0.81 22.00 3.70

B70-MCCN CUTLER-HAMMER Pass LV MCC 480 12.79 42.00 30.46

B70-MCCQ CUTLER-HAMMER Pass LV MCC 480 9.14 42.00 21.76

B70-MSA CUTLER-HAMMER Pass LV Switchboard 480 15.55 65.00 23.92

B70-MSQ CUTLER-HAMMER Pass LV Switchboard 480 3.02 (*N1) 35.00 8.63

B70-NH1A1 CUTLER-HAMMER Pass LV Panelboard 480 11.01 14.00 78.64

B70-NH1B1 CUTLER-HAMMER Pass LV Panelboard 480 10.53 14.00 75.22

B70-NH2A1 CUTLER-HAMMER Pass LV Panelboard 480 10.53 14.00 75.22

B70-NH2B1 CUTLER-HAMMER Pass LV Panelboard 480 10.04 14.00 71.70

B70-NH2B2 CUTLER-HAMMER Pass LV Panelboard 480 10.61 14.00 75.76

B70-NHBA2 CUTLER-HAMMER Pass LV Panelboard 480 13.60 25.00 54.39

B70-NL1A1-1 CUTLER-HAMMER Pass LV Panelboard 208 3.76 22.00 17.11

B70-NL1A1-2 CUTLER-HAMMER Pass LV Panelboard 208 3.75 22.00 17.06

B70-NL1A1-3 CUTLER-HAMMER Pass LV Panelboard 208 3.74 22.00 17.01

VAMC Heinz 2-17

Voltage Isc kA Isc kA Rating kA Rating%

B70-NL1B1-1 CUTLER-HAMMER Pass LV Panelboard 208 3.24 22.00 14.74

B70-NL1B1-2 CUTLER-HAMMER Pass LV Panelboard 208 3.24 22.00 14.71

B70-NL2A1-1 CUTLER-HAMMER Pass LV Panelboard 208 5.12 22.00 23.29

B70-NL2A1-2 CUTLER-HAMMER Pass LV Panelboard 208 5.10 22.00 23.20

B70-NL2A1-3 CUTLER-HAMMER Pass LV Panelboard 208 5.08 22.00 23.11

B70-NL2B1-1 CUTLER-HAMMER Pass LV Panelboard 208 3.22 22.00 14.65

B70-NL2B1-2 CUTLER-HAMMER Pass LV Panelboard 208 3.21 22.00 14.61

B70-NLBA1 CUTLER-HAMMER Pass LV Panelboard 208 2.15 22.00 9.75

B70-NLBA2 CUTLER-HAMMER Pass LV Panelboard 208 4.10 22.00 18.62

B70-NLBB1 CUTLER-HAMMER Pass LV Panelboard 208 2.78 22.00 12.62

B70-QHBA1 CUTLER-HAMMER Pass LV Panelboard 480 12.98 35.00 37.07

B70-QL2B1 CUTLER-HAMMER Pass LV Panelboard 208 1.39 22.00 6.32

B70-QLBA1 CUTLER-HAMMER Pass LV Panelboard 208 1.91 22.00 8.70

B51B2-ECGE CUTLER-HAMMER Pass LV Panelboard 208 5.80 (*N1) 10.00 57.95

B51A2-ECGD CUTLER-HAMMER Pass LV Panelboard 208 9.12 (*N1) 10.00 91.24

B52-ELBA CUTLER-HAMMER Pass LV Panelboard 208 3.47 10.00 34.66

B51B2-2BLD CUTLER-HAMMER Pass LV Panelboard 208 7.00 10.00 70.00

B51B2-3BLD CUTLER-HAMMER Pass LV Panelboard 208 6.49 10.00 64.89

B32-ATS-PDU POWERWARE Pass LV Transfer Switch 480 11.40 22.00 51.82

B32-NC CUTLER-HAMMER Pass LV Panelboard 208 4.77 10.00 47.70

DP-CR Eaton Pass LV Panelboard 480 10.41 14.00 74.38

71-1HA GE Pass LV Panelboard 480 10.11 25.00 40.44

71-1HB GE Pass LV Panelboard 480 20.65 65.00 31.77

71-1HC GE Pass LV Panelboard 480 14.11 25.00 56.44

71-1LA GE Pass LV Panelboard 208 6.49 22.00 29.49

71-1LB GE Pass LV Panelboard 208 6.52 22.00 29.64

71-1LC GE Pass LV Panelboard 208 13.68 22.00 62.18

71-1LD GE Pass LV Panelboard 208 13.20 22.00 60.02

VAMC Heinz 2-18

Voltage Isc kA Isc kA Rating kA Rating%

71-1LF GE Pass LV Panelboard 208 9.58 22.00 43.55

71-1LG GE Pass LV Panelboard 208 9.55 22.00 43.39

71-1LH GE Pass LV Panelboard 208 8.78 22.00 39.91

71-1LI GE Pass LV Panelboard 208 9.65 22.00 43.86

71-1LJ GE Pass LV Panelboard 208 13.68 22.00 62.18

71-1LK GE Pass LV Panelboard 208 12.58 22.00 57.16

71-1LL GE Pass LV Panelboard 208 5.16 22.00 23.48

71-1LM-1 GE Pass LV Panelboard 208 4.86 22.00 22.09

71-1LM-2 GE Pass LV Panelboard 208 4.71 22.00 21.39

71-2HA GE Pass LV Panelboard 480 9.55 25.00 38.22

71-2HB GE Pass LV Panelboard 480 18.72 65.00 28.80

71-2HC GE Pass LV Panelboard 480 13.08 25.00 52.34

71-2LA GE Pass LV Panelboard 208 6.12 22.00 27.84

71-2LB GE Pass LV Panelboard 208 6.15 22.00 27.97

71-2LC GE Pass LV Panelboard 208 12.19 22.00 55.42

71-2LD GE Pass LV Panelboard 208 11.81 22.00 53.70

71-2LF GE Pass LV Panelboard 208 8.81 22.00 40.06

71-2LG GE Pass LV Panelboard 208 8.78 22.00 39.93

71-2LH GE Pass LV Panelboard 208 8.13 22.00 36.98

71-2LI GE Pass LV Panelboard 208 8.87 22.00 40.33

71-BHA GE Pass LV Panelboard 480 23.69 65.00 36.45

71-BLA GE Pass LV Panelboard 208 14.77 22.00 67.14

71-BLB GE Pass LV Panelboard 208 6.05…