Arc Flash Hazard Analysis 03-18-22.pdf

Togus VA Medical Center Electrical Distribution Upgrade

Arc Flash Hazard Analysis

Prepared for:

Bussco Inc.

25 Franklin St.

Malden, MA 02148

Prepared by:

Electrical Consultants, Inc.

1 Faraday Drive Cumberland, Maine 04021

03/18/2022 Revision 2 – 200-XR Panel Upgrade

Togus VA Medical Center Rev 2 – 200-XR Panel Upgrade Arc Flash Hazard Analysis March 18, 2022

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References Togus Electrical Distribution System Upgrades Drawing Set NFPA 70E – Standard for Electrical Safety in the Workplace 2021 Edition NFPA 70 – National Electrical Code 2020 Edition IEEE 1584 – IEEE Guide for Performing Arc-Flash Hazard Calculations IEEE 141 – IEEE Recommended Practice for Electric Power Distribution for Industrial Plants IEEE-C37.010 – IEEE application Guide for AC High-Voltage Circuit Breaker > 1000 VAC IEEE 242 – IEEE Recommended Practice for Protection and Coordination of Industrial and

Commercial Power Systems IEEE- 399 Recommended Practice for Industrial and Commercial Power Systems Analysis Existing Togus VA Power System Studies (Including Arc Flash Hazard Analysis) performed by

Clark Nexsen, Inc. from 2014

Revision History

Rev Description Date Developed By Reviewed By 1 2021 Distribution Upgrade 10/12/2021 L. Gaghan, ECI P. Shea, ECI 2 200-XR Panel Updgrade 03/18/2022 N. Szwez, ECI L. Gaghan, ECI

Arc Flash Hazard Background:

An arcing electrical fault poses a risk to any personnel located within a certain proximity due to the intense energy emitted in all directions. The thermal portion of this energy has the potential to cause burns and permanent damage to individuals. The National Fire Protection Agency (NFPA) has developed an industrial standard method to evaluate the energy levels at various distances from an electrical arc.

In an effort to mitigate risks to personnel, a full understanding of what hazards are present if an electrical arc incident were to occur is required. The following report presents information necessary to help properly develop safety plans and procedures for keeping employees and maintenance contractors out of harm’s way should an electrical arc occur. The information in this report is only the first step in developing a comprehensive safety plan and the associated procedures used to safeguard personnel.

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Table of Contents

1. Introduction

2. Arc Flash Calculations

3. Assumptions

4. System Operating Conditions

5. Definitions Used in the Report

6. Arc Flash Hazard Sticker

7. Recommendations

Appendix A AFHA Data

Appendix B AFHA Stickers

Appendix C SKM System Diagram

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1. Introduction Togus VA Medical Center is replacing the 12kV switchgear that receives incoming power from Central Maine Power (CMP) and distributes it to the 12kV step down transformers throughout the hospital. The switchgear consists of two Main Breakers. Main-A receives power from Circuit 216D1 fed from Cony Road and Main-B receives power from Circuit 207D2 fed from Blaire Road. The switchgear has a Bus-Tie Breaker that can be used to split the bus. Feeders A,B,C and H are on the Bus-A side of the Tie and Feeders D,E,F and G are on the Bus-B side of the Tie. All feeders are existing with the exception of Feeders G and H. Feeder G is a new feeder that supplies the new 12kV step down transformer T4.

Feeder H is a spare. PLC controls can put the switchgear into 3 types of operation:

1. Automatic Mode – One source active and the other closed with the Tie closed with an automatic transition between Source-A and Source-B.

a. Normal Operation – Source-A closed, Source-B open and Tie closed.

b. Upon Loss of Source-A – Source-A open, Source-B closed and Tie closed.

c. Upon Return of Source-A – Source-A closed, Source-B open and Tie closed.

2. Load Shed Mode – Load Shed Mode is manually initiated

d. Normal Operation – Source-A closed, Source-B closed and Tie opened.

e. Upon loss of either Source – The lost source is opened and the Tie is closed. Operation returns to Automatic mode.

3. Manual Mode – May be manually operated. However, hard wired interlocks are included in breaker close circuits to prevent Source-A and Source-B from being closed while the Bus-Tie is closed. The CMP sources are out of phase and are not permitted to be operated in a paralleled configuration.

Also included with the upgrade is the replacement of various 480V and 208V components throughout the hospital. These replacements include Motor Control Centers, Switchgear and Panels which will include new low voltage breakers as well as new conductors and new transformers. New 800kW Generator-10 and 400kW Generator-11 will also be installed and available to use for backup power.

Please reference the Togus Electrical Distribution System Upgrades Drawing Set for a complete break down of equipment to be upgraded. The equipment that is being upgraded is bolded in the drawing set and the equipment that is not upgraded will not be bolded.

ECI’s scope on this upgrade is to develop the 12kV protective relay settings in the new switchgear, perform a protective device coordination study and an Arc Flash Hazard Analysis (AFHA). As part of this, the existing Togus VA SKM model is to be updated to reflect the changes in the upgrade. An up-to-date utility contribution from Central Maine Power will also be included in the model. Evaluation of existing equipment that is not being upgraded is not included. Please reference the Existing Togus VA Power System Studies and Coordination Study performed by Clark Nexsen, Inc. from 2014 for Coordination and AFHA of equipment not included in this upgrade.

This report provides information related to the AFHA performed for Togus VA. In compliance with the standards NFPA-70E and IEEE-1584, employers must develop an electrical safety program which includes hazard identification and risk evaluation procedure. In the event that an individual needs to perform service on any electrical component while energized to 50v or greater, the NFPA procedures shall be

Togus VA Electrical Distribution Arc Flash Hazard Analysis 03_18_2022.docx Page 5 of 59 followed to provide the safest working environment possible. Many scenarios will be detailed within the safety program, one of which pertains to working on or near energized components with greater than 240VAC. The results of this AFHA will be used to provide a foundation for decision making in terms of how to safely approach the specific work; whether it includes non-melting clothing, full fire rated protective gear, or even mandated de-energization. All information leading to the development of this AFHA was provided by Togus VA, is representative of the equipment and components as found during the time of the analysis, and is intended solely for the purposes of updating the electrical model for this facility. As a precaution, this AFHA is intended to supplement the efforts provided by Togus VA developing best practices for safe working conditions. A full safety program and procedure is required to ensure the safety of personnel performing service on equipment alongside which an electrical hazard exists. Only qualified individuals, familiar with the procedures and practices of maintaining and repairing these systems should be involved with such tasks. In addition to the recommendations in this report, all individual components manufacturers’ warnings and procedures should be adhered to. ECI will not be responsible for misuse or inappropriate application of the information provided within this report.

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2. Arc Flash Calculations Arc flash calculations for this study were done using the SKM Power Tools for Windows software. Within the software there was an option to base the Arc Flash Evaluation off NFPA 70E Annex D.3; we chose this option. Below is the procedure used to determine the incident energy at any given location. This is meant to summarize the procedure used, for a more comprehensive explanation please read NFPA 70E Annex D.3.

1. Apply 3 Phase Fault to each bus in the power system to calculate the Bolted Fault Current at the bus and the Bolted Fault Current through each protective device.

2. Calculate the Arcing Fault Current at the bus and through each protective device. For bus voltage <= 1kV, two calculations for Incident Energy are recommended by NFPA 70E-2015 Annex D.3. One at the maximum bolted fault three-phase short circuit current, and another at the minimum fault level (38% of the available bolted fault three-phase short circuit current) at which the arc will self-sustain. For bus voltage > 1kV, always assume that the arcing fault current is equal to the bolted fault current

3. Determine the protective device Trip/Delay time from the Time Current Coordination Curve. The trip/delay time is based on the Arcing Fault current through the protective device and the branch protective device settings. Arc Flash Evaluation automatically reads this value from the time current coordination (TCC) curves. Since the trip times are read from the protective device settings, make sure the protective device settings are accurate. Inaccurate settings will result in inaccurate trip times.

4. Determine the Arcing duration by adding the Trip/Delay time and Breaker Opening time.

5. Engineer to determine the Arc Type (In Box or Open Air). The enclosure surrounding the arc presents larger directed incident energy compared to open air, and will require a higher PPE Category to protect exposed workers

6. Engineer to determine the Working Distance.

7. Calculate the Incident Energy at the given Working Distance. For bus voltage <= 1 kV, two calculations for Incident Energy are performed. One with current set to the maximum bolted fault three-phase short circuit current and the trip time obtained from the TCC using the bolted fault current, another calculation is done at the minimum fault level (38% of the bolted) and the trip time obtained from the minimum fault current. For bus voltage > 1 kV, only one calculation for Incident Energy at 100% of the maximum bolted fault three-phase short circuit current is performed. In the case of multiple contributions to a bus, the Arc Flash program for the NFPA 70E-2004 standard uses the energy accumulation method to calculate incident energy more accurately.

8. Calculate the Arc Flash Boundary. The Arc Flash Boundary is defined as the boundary distance for incident energy levels of 1.2 cal/cm2, 1.2 cal/cm2 is the limit for a second-degree bare skin burn. The Flash Boundary could be solved by setting the incident energy to 1.2 cal/cm2 and calculating the distance from the incident energy equations. NFPA 70E-2015 Annex D.2 also recommends using the following equation to calculate the flash boundary for systems that are 600 volts or less: Arc Flash Boundary (in inches) = 12.0 * √( 2.65 * 1.732 * bolted fault kA at the bus * bus voltage kV * arcing duration in seconds)

9. Determine the PPE based on the Incident Energy at working distance

10. Determine the Glove Class based on the voltage level.

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3. Assumptions When exact data is not available or where the steps taken to gather exact data poses inherent risks, assumptions are made, or typical values are used. It is our goal to not make an assumption or use typical values unless justified by the NFPA or a standard that the NFPA accepts.

The following section lists assumptions required to be made while gathering information to generate the AFHA. Each of these assumptions either matches requirements from the associated standards, or errs on the side of a worst case scenario.

1. Working distances are set to standard distances from IEEE 1584 except where working distances are defined otherwise on site.

2. At the working distance, the maximum allowable incident energy is set at 1.2 cal/cm2. Any instance where this threshold is breached are recommended to have additional risk mitigation factors put into place.

3. Non motor loads (such as heating elements) with no means of disconnect away from the MCC were omitted from model as they will contribute no current to a fault. A sticker with the worst case incident energy for the MCC will be used.

4. Any conductor size that was unknown and/or unsafe to unveil supplying less than 600V, was determined using the overcurrent protection setting in accordance with table 310.15(B)(16) of the National Electric Code, then increased to the next greater size

5. Any conductor size that was unknown and/or unsafe to unveil supplying more than 600V, was determined using calculation methods from IEC 60287-1 or taken from IEEE 141. Whichever presented worst case scenario.

6. Typical sub transient impedance values of synchronous machines are taken from IEEE standard 141 when actual values could not be found.

7. Typical X/R Ratios for synchronous machines are taken from IEEE standard C37.010 when actual values could not be found.

8. Typical X/R Ratios for transformers are taken from IEEE standard C37.010 when actual values could not be found.

9. Facilities with multiple operating conditions available( i.e. emergency generator, Automatic transfer switches) will have all available conditions evaluated. The case that results in the worst case scenario will be recorded for each bus and be recorded in the “notes” portion of the table of results. When there are no notes then the “base case” scenario was used, which is all ATS’s being in the normal position and all disconnects closed.

10. For breakers that are included in the SKM library, the clearing time is already included in the software’s model. Otherwise the clearing time is assumed to be 5 cycles.

11. When a differential relay has 3 or more inputs all the busses within it’s zone will be given a maxumim fault duration of 5 cycles.

12. For instances where the protective devices which are outdated and/or lacking labels, a device of the same size and frame rating existing within the plant was used. Where the SKM program setting does not coordinate with what’s available on the physical breaker, a mid to high trip value is selected.

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13. The program used for the calculations of this Arc Flash analysis is SKM Systems Analysis. The program simulates an arcing fault at a point of connection, such as a circuit breaker or a manually operated disconnect, and evaluates the incident energy as it is experienced from the working distance. All standard calculations and procedures used in this analysis conform to the articles in NFPA70E, IEEE Std 551 and IEEE Std 1584.

14. Situations where multiple loads of identical feeding were conjoined for the sake of calculations.

The worst case scenario of the loads was used for the calculation and a conservative recommendation was made for the level of incident energy. The Arc Flash category will then be used for all identical loads and only one procedure is needed.

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4. System Operating Conditions The severity of the Arc Flash is proportional to the magnitude of fault current and the time that the arc exists. Evaluating the system under different operating conditions will vary the fault current magnitude and therefor change the operate time of the protective equipment intended to isolate the fault. The operating conditions below will be evaluated and the worst case scenario out of all the scenario’s will be recorded for all equipment on an induvial basis.

1. Togus VA Medincal Center is fed from Cony Road with the Bus Tie closed

2. Togus VA Medincal Center is fed from Blaire Road with the Bus Tie closed

3. Togus VA Medincal Center is fed from Blaire Road and Cony Road with the Bus Tie open

4. Feeder-A is out of service and its load is being fed from Feeder-B

5. Feeder-B is out of service and its load is being fed from Feeder-A

6. Feeder-C is out of service and its load is being fed from Feeder-A

7. Feeder-D is out of service and its load is being fed from Feeder-E

8. Feeder-E is out of service and its load is being fed from Feeder-D

9. Feeder-F is out of service and its load is being fed from Feeder-G

10. Feeder-G is out of service and its load is being fed from Feeder-F

11. The low voltage backup Generators are in service

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5. Definitions Used in the Report Before any individual reads this report they first should become familiar with all standards that are referenced in this report and to do their own research to understand an AFHA. All information necessary to properly develop a safety procedure is included in the Appendix for AFHA Data. This chart should be included in the safety instruction manual for reference when the AFHA information sticker is insufficient.

To help better understand what the data in the table means, below is a comprehensive explanation of each column:

Bus Name Fault location for bus report. For line side and load side report options, the bus refers to the equipment where the line side and load side protective devices are connected

For the purpose of this report, the bus name could represent a Switchgear, a load center, a circuit disconnect, or any point in the electrical system where the current flow can be interrupted either manually or automatically.

Protective Device Name Refers to the protective device that clears the arcing fault or portion of the total arcing fault current. The function name will also be displayed if multiple functions exist. At Togus VA, this is the nearest upstream device that will automatically trip in a fault condition as the facility is assumed to have the proper coordination in place.

Bus kV The nominal voltage at the point of evaluation expressed in Kilovolts.

Bus Bolted Fault (kA) The current flowing to a bus fault that occurs between two or more conductors or bus bars, where the impedance between the conductors is zero.

Note, these values may not be precise as the assumption of the fault contribution from the utility was examined at infinite bus. If the current is not precise due to lack of obtainable information, the analyzed current will be greater than the exact value due to the conservative estimates used as described in the assumptions section.

Bus Arcing Fault (kA) The calculated arcing current on the faulted bus.

Prot Dev Bolted Fault (kA) The portion of the total bolted fault current that flows through a given protective device. Since the system at Togus VA is a linear distribution, all the fault current seen at the fault location passes through the nearest protective device.

Prot Dev Arcing Fault (kA) The maximum current to flow through the nearest protective device upstream of an arcing fault at the point of evaluation.

Trip / Delay Time (sec.)

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The time required for the protective device to operate for the given arcing fault condition. In the case of a relay, the breaker opening time is entered separately from the relay trip time. For low voltage breakers and fuses, the trip time is assumed to be the total clearing curve or high tolerance of the published trip curve.

Breaker Opening Time/Tol (sec.)

The time required for a breaker to open after receiving a signal from the trip unit to operate. The combination of the Trip/Delay time and the Breaker Opening time determines the total time required to clear the fault. For low voltage circuit breakers, the total clearing time displayed on the Manufacturer’s drawing is assumed to include the breaker opening time. For these breakers the trip monitoring device is internal to the breaker, therefore the breaker opening time is assumed to be 0. This is because the manufacturer TCC is intended to include the combination of the trip operate and breaker clearing time.

For higher voltage breakers, such as ones that operate from signals from relays, the breaker operating time is added to the trip time from the device.

Ground Indicates whether the fault location includes a path to ground. Systems with high-resistance grounds are assumed to be ungrounded in the Arc Flash calculations. (Available for IEEE 1584 only).

Equip Type Used only in the IEEE 1584 method to indicate whether the equipment is Switchgear, Panel, Cable or Open Air. The equipment type provides a default Gap value and a distance exponent used in the IEEE incident energy equations.

Gap Used only in the IEEE 1584 method to define the spacing between bus bars or conductors at the arc location.

Arc Flash Boundary The distance from exposed live parts within which a person could receive a 2nd degree burn.

Working Distance The distance between the arc source and the worker’s face or chest. As a standard, 18in is used for this evaluation.

Incident Energy The amount of energy on a surface at a specific distance from a flash.

PPE Level Indicates the Personal Protective Equipment (PPE) required to prevent an incurable burn at the working distance during an arcing fault.

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For additional information refer to NFPA 70 E, Standard for Electrical Safety in the Workplace.

Level 0:

0.0 - 1.2 cal/cm^2

Nonmelting or Untreated Fiber with Weight >= 4.5 oz/sq yd, Safety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, Safety glasses, Non-melting or untreated natural fiber (cotton/wool/rayon/silk > 4.5 oz/sq yd), shirt (long-sleeve), pants (long)., > 50V voltage rated tools + Class 0 (minimum) gloves, Dielectric shoes or insulating mat (step and touch potential).

Level 1:

1.2 - 4.0 cal/cm^2

Arc-rated shirt & pants or arc-rated coverall , Hardhat + Arc-rated hard hat liner + Safety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, Leather work shoes, Safety glasses, electrically rated hard hat with hood and face shield., 4 cal/sq cm, Arc-rated shirt (long-sleeve) plus Arc-rated pants (long), or Arc-rated coverall, plus arc-rated face shield or arc flash suit hood, Arc-rated rainwear as needed., > 50V voltage rated tools + Class 0 (minimum) gloves and leather protectors (flash) as needed., Leather shoes (flash) as needed. Dielectric shoes or insulating mat (step and touch potential).

Level 2:

4.0 - 8.0 cal/cm^2

Arc-rated shirt & pants or arc-rated coverall , Hardhat + Arc-rated hard hat liner + Safety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, Leather work shoes, Safety glasses, electrically rated hard hat with hood and face shield. Hearing protection., 8 cal/sq cm, Arc-rated shirt (long-sleeve) plus Arc-rated pants (long), or Arc-rated coverall, plus arc-rated flash suit hood or arc-rated face shield and arc rated balaclava, Arc-rated rainwear as needed., > 50V voltage rated tools + Class 0 (minimum) gloves and leather protectors (flash)., Leather shoes (flash) as needed. Dielectric shoes or insulating mat (step and touch potential).

Level 3:

8.0 - 25.0 cal/cm^2

Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit , Hardhat + Arc-rated hard hat liner + Safety Glasses or Goggles + Ear Canal Inserts, Arc-rated Gloves, Leather work shoes, Safety glasses, electrically rated hard hat with hood and face shield. Hearing protection., 25 cal/sq cm, Arc-rated shirt (long-sleeve) plus Arc-rated pants (long) plus Arc-rated coverall, plus arc rated arc flash suit jacket, pants, & hood, Arc-rated rainwear as needed., > 50V voltage rated tools + Class 0 (minimum) gloves and leather protectors (flash)., Leather shoes (flash) as needed. Dielectric shoes or insulating mat (step and touch potential).

Level 4:

25.0 - 40.0 cal/cm^2

Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit , Hardhat + Arc-rated hard hat liner + Safety Glasses or Goggles + Ear Canal Inserts, Arc-rated Gloves, Leather work shoes, Safety glasses, electrically rated hard hat with hood and face shield. Hearing protection., 40 cal/sq cm, Arc-rated shirt (long-sleeve) plus Arc-rated pants (long) plus Arc-rated coverall, plus arc rated arc flash suit jacket, pants, & hood, Arc-rated rainwear as needed., > 50V voltage rated tools + Class 0 (minimum) gloves and leather protectors (flash)., Leather shoes (flash) as needed. Dielectric shoes or insulating mat (step and touch potential).

Level Dangerous!:

40.0 - 999.0 cal/cm^2

Level Dangerous!: DO NOT WORK ON LIVE! Equipment should be deenergized before work is performed.

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6. Arc Flash Hazard Sticker The arc flash hazard labels shall be applied to all locations at which individuals may have access to energized electrical conductors. Such locations include, but are not limited to, switchgear enclosures, load centers, distribution buses, and electrical disconnect switch enclosures. Any location with the potential for energized components to be present must have an arc flash hazard warning label present.

Below is a sample of the sticker with the sections broken out for further understanding.

1. Flash Hazard at (Working Distance) The distance between the arc source and the workers face or chest.

2. Minimum Arc Rating (Incident energy at working distance) 18in is a standard for working distance as it is a typical arms reach from the body to the equipment being worked on. This distance is used unless defined as differently on site. This value describes the amount of energy service personnel will be subject to should a fault occur.

3. Flash Protection Boundary The distance from an arcing fault within which unprotected skin could receive a second degree burn.

4. Glove Class The Glove Class required based on the design voltage at the fault location.

5. Clothing Category Indicates the Personal Protective Equipment (PPE) level required to prevent an incurable burn at the working distance from an arcing fault.

6. Personal Protective Equipment Description This section describes the proper PPE to be worn to mitigate the risk of non-curable burns to service personnel.

7. Shock Hazard when cover is removed Describes the highest voltage level within the enclosure from which service personnel will be at risk of electric shock.

8. Limited Approach

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The boundary at which only authorized personnel can cross when the enclosure is open.

9. Restricted Approach

The boundary at which only qualified personnel can cross when the enclosure is open.

10. Prohibited Approach Approach

The boundary at which people are discouraged from performing work without deenergizing equipment.

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7. Recommendations Medium Voltage Switchgear 246 Bus-A and Bus-B Protection

The design for this upgrade did not include provisions for bus protection. It is recommended that Togus VA consider the addition of bus protection in order to both improve reliability by eliminating mis coordination with the CMP recloser fast curves and to improve safety by reducing incident energy for personal that may be working on MV-SWGR-246. The following bus protection methods are recommended.

Bus Differential Protection (87B): Either a low or high impedance bus differential scheme could be implemented for MV-SWGR-246 BUS-A and BUS-B. This scheme would require the use of current transformers on side of the breakers non-adjacent to the bus. This scheme would require two bus protection relays (Bus-A and Bus-B) and the CT’s used for protection would need to be evaluated for performance under worse case fault scenarios.

Fast Bus Scheme: A fast bus scheme operates on the principal that for a bus fault the Main Breaker will experience fault current, but the Feeder relays will not. Feeder Relays will send a blocking signal to the Main Relays for fault current on the Feeders and the Main Relays will be given a definite time overcurrent element with a short time delay to allow the Feeder relay’s contacts to close. This definite time overcurrent element will be blocked from operating if any of the Feeders experience fault current.

This scheme would require relay outputs to be wired from the Feeders to the Main and Bus Tie relays.

Protection settings would also need to be upgraded to incorporate the scheme.

Arc Flash Detection Relays: Arc flash detection relays operate when a sudden change in light is accompanied by a sudden increase in current. To implement this scheme Arc Flash Detection Relays would need to be installed in each switchgear cabinet.

Updated Arc Flash Hazard Analysis

As part of this upgrade, ECI was asked to perform an Arc Flash Hazard Analysis for the 12kV distribution and the modified 480V circuits. However, the most recent Arc Flash Hazard Analysis performed for Togus VA as a whole was performed in 2014. NFPA 70E Standard for Electrical Safety in the Workplace article 130.5(2) states that an Arc Flash Risk Assessment shall be performed “at intervals not to exceed 5 years, to account for changes in the electrical distribution system that could affect the results of the arc flash risk assessment.”

Since 2014 the maximum utility fault contribution has increased from 1728A to 1929A, an increase of approximately 12%. It is recommended that all other equipment subject to arc flash hazard be reevaluated in the near future.

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Appendix A AFHA Data

Bus Name Protective Device

Name Bus kV

Bus Bolted Fault (kA)

Bus Arcing Fault (kA)

Prot Dev

Bolted Fault (kA)

Prot Dev

Arcing Fault (kA)

Trip/Delay Time/Tol

(sec.)

Breaker Opening

Time (sec.)

Ground Equip Type

Gap (mm)

Arc Flash Boundary

(in)

Working Distance

(in)

Incident Energy

(cal/cm2)

PPE Level / Notes

(*N)

200-AHU #20 200-AHU #20-CB 0.48 15.34 9.45 15.16 9.34 0.014 0.0000 Yes PNL 25 10 18 0.44 (*S8)

200E-AH-10

200E-VFD-AH-10-

CB 0.48 5.71 4.06 5.58 3.97 0.016 0.0000 Yes PNL 25 6 18 0.20 (*S7)

200E-AH-8 200E-AH-8-CB 0.48 6.39 4.47 6.28 4.40 0.0158 0.0000 Yes PNL 25 6 18 0.22 (*S7) 200E-EF-22 200E-EF-22-CB 0.48 2.15 1.77 2.15 1.77 0.01 0.0000 Yes PNL 25 3 18 0.05 (*S7) 200E-EF-3 200E-EF-3-CB 0.48 4.43 3.27 4.42 3.26 0.0159 0.0000 Yes PNL 25 5 18 0.16 (*S7)

200E-P-11 200E-P-11-CB 0.48 1.54 1.13 1.53 1.12 0.0282 0.0000 Yes PNL 25 4 18 0.09 (*N3) (*S2)

200E-P-MCC4 200E-MCC-4-CB 0.48 10.56 6.87 10.12 6.58 0.255 0.0000 Yes MCC 25 43 18 5.0 (*S7)

200E-RF-10

200E-VFD-RF-10-

CB 0.48 1.60 1.37 1.58 1.35 0.008 0.0000 Yes PNL 25 2 18 0.03 (*S7)

200E-RF-8 200E-RF-8-CB 0.48 2.65 2.11 2.63 2.09 0.0173 0.0000 Yes PNL 25 4 18 0.11 (*S7) 200-MP 200-MP-CB 0.48 7.53 5.15 7.53 5.15 0.0155 0.0000 Yes PNL 25 7 18 0.25 (*S8) 200-MP1 200-MP1-CB 0.48 7.67 5.23 7.67 5.23 0.0155 0.0000 Yes PNL 25 7 18 0.25 (*S8)

200-MRI MACHINE 200-MRI

MACHINE-CB

0.48 13.90 8.69 13.90 8.69 0.0142 0.0000 Yes PNL 25 9 18 0.40 (*S8)

200-XR 200-XR-CB 0.48 14.92 9.23 14.92 9.23 0.05 0.0000 Yes PNL 25 21 18 1.5 (*S8) 200-XRAY 1 200-ECB-XRAY 1 0.48 11.22 7.23 11.22 7.24 0.01 0.0000 Yes PNL 25 7 18 0.23 (*S8) 200-XRAY-2 200-XRAY 2-CB 0.48 11.41 7.34 11.41 7.34 0.0133 0.0000 Yes PNL 25 8 18 0.32 (*S8) 200-XRAY-3 200-XRAY 3-CB 0.48 13.36 8.39 13.36 8.40 0.0121 0.0000 Yes PNL 25 8 18 0.33 (*S8) 200-XRAY-4 200-XRAY 4-CB 0.48 12.22 7.78 12.22 7.78 0.0141 0.0000 Yes PNL 25 9 18 0.36 (*S8) 200-XRAY-5 200-XRAY 5-CB 0.48 12.01 7.66 12.01 7.67 0.0141 0.0000 Yes PNL 25 9 18 0.35 (*S8) 200-XRAY-5 (B) 200-XRAY 5(B)-CB 0.48 2.72 2.16 2.72 2.16 0.0144 0.0000 Yes PNL 25 4 18 0.09 (*S8)

203-480V EMERGENCY

FEED

244-XFMR-203-

CB 0.48 4.64 3.40 4.64 3.40 0.0153 0.0000 Yes PNL 25 5 18 0.16 (*S10)

204-480V EMERGENCY

FEED

244-XFMR-204-

CB 0.48 4.73 3.46 4.73 3.46 0.0206 0.0000 Yes PNL 25 6 18 0.22

(*N7) (*S10)

205-480

EMERGENCYFEED

244-XFMR-205-

CB 0.48 6.74 4.68 6.74 4.68 0.12 0.0000 Yes PNL 25 23 18 1.8 (*S10)

206-CH-1 206-CH-1-CB 0.48 8.53 4.87 8.53 4.87 0.05 0.0000 Yes PNL 25 14 18 0.76 (*N3) (*S3)

206-HP2 206-HP-2-CB 0.48 6.96 4.81 6.96 4.81 0.05 0.0000 Yes PNL 25 14 18 0.75 (*S3) 206-HP3 206-HP-3-CB 0.48 7.13 4.91 6.83 4.71 0.05 0.0000 Yes PNL 25 14 18 0.77 (*S3)

210-480V EMERG FEED 210-XFMR-HS-CB 0.48 1.37 1.02 1.37 1.02 1.481 0.0000 Yes PNL 25 39 18 4.2

210-TEMP-G11 210-TEMP-G11-

CB

0.48 3.94 2.96 3.94 2.96 0.002 0.0000 Yes PNL 25 1 18 0.02 (*N20b)

235-480V EMERG FEED 235-XFMR-HS-CB 0.48 1.55 1.14 1.55 1.14 0.3497 0.0000 Yes PNL 25 17 18 1.1 (*N3)

244-SWBD 244-ATS-N-CB 0.48 9.71 6.40 8.49 5.59 0.05 0.0000 Yes PNL 25 16 18 1.0 (*S3)

Togus VA Electrical Distribution Arc Flash Hazard Analysis 03_18_2022.docx Page 17 of 59

244-SWBD-GEN-10 244-GEN-10-CB 0.48 10.72 6.96 10.72 6.96 0.230 0.0000 Yes PNL 25 44 18 5.2 (*N7)

244-SW-GEN 9 244-SDS-MB 0.48 9.84 6.47 8.62 5.67 0.025 0.0000 Yes PNL 25 11 18 0.52 (*S3)

244-TEMP-G10

244-TEMP-G10-

CB 0.48 10.47 6.82 10.47 6.82 0.218 0.0000 Yes PNL 25 42 18 4.8 (*S10)

248-XFMR-HS (248-

XFMR-HS-CB LineSide)

248-ECB-XFMR-

CB 0.48 3.10 2.41 3.10 2.41 0.053 0.0000 Yes PNL 25 9 18 0.38 (*S10)

ATS-244 244-ATS-N-CB 0.48 9.75 6.42 8.53 5.61 0.05 0.0000 Yes PNL 25 16 18 1.0 (*S3)

ATS-BYPASS-EQUIP

206-BYPASS-ATS-

EQUIP-N-CB

0.48 11.60 7.44 11.29 7.24 0.05 0.0000 Yes PNL 25 18 18 1.2 (*N20b)

(*S3)

EMDP-206

244-EMDP-206-

MAIN-CB

0.48 10.34 6.75 10.34 6.75 0.12 0.0000 Yes PNL 25 29 18 2.6 (*S10)

GEN 11 SWBD

210-GEN-11-

SWBD-CB

0.48 3.97 2.98 3.97 2.98 0.132 0.0000 Yes PNL 25 18 18 1.2 (*S10)

MDP-MRI MV-FUSE-T4 0.48 13.09 7.02 12.92 6.92 0.5102 0.0000 Yes PNL 25 66 18 10

MV-200E-SWGR MV-FDR-D-50/51 12.47 2.85 2.83 2.52 2.50 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S7) MV-246-SWGR-A MV-MAIN-B-51 12.47 2.06 2.06 0.98 0.98 1.769 0.0500 Yes SWG 152 61 36 2.0 (*S1) MV-246-SWGR-B MV-MAIN-B-51 12.47 2.06 2.06 0.98 0.98 1.769 0.0500 Yes SWG 152 61 36 2.0 (*S1) MV-BUS-T10-SW MV-FDR-B-50/51 12.47 2.77 2.75 2.56 2.54 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S3) MV-BUS-T11-SW MV-FDR-A-50/51 12.47 2.70 2.68 2.49 2.47 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S4) MV-BUS-T12-SW MV-FDR-B-50/51 12.47 2.77 2.74 2.55 2.53 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S3) MV-BUS-T14-SW MV-FDR-A-50/51 12.47 2.93 2.91 2.55 2.53 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S5) MV-BUS-T15-SW MV-FDR-B-50/51 12.47 2.67 2.65 2.46 2.45 0.0167 0.0500 Yes SWG 152 6 36 0.20 (*S3) MV-BUS-T16-SW MV-FDR-B-50/51 12.47 2.92 2.89 2.70 2.68 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S3) MV-BUS-T17-SW MV-FDR-B-50/51 12.47 2.83 2.81 2.62 2.59 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S3) MV-BUS-T18-SW MV-FDR-B-50/51 12.47 2.87 2.84 2.65 2.62 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S3) MV-BUS-T19-SW MV-FDR-B-50/51 12.47 2.79 2.77 2.58 2.56 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S3)

MV-BUS-T1-SW MV-200E-XFMR-

1-FUSE

12.47 2.85 2.82 2.84 2.82 0.0042 0.0000 Yes SWG 152 0 36 0.01 (*S7)

MV-BUS-T20-SW MV-FDR-A-50/51 12.47 2.81 2.79 2.43 2.41 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S5) MV-BUS-T22-SW MV-FDR-A-50/51 12.47 2.90 2.88 2.52 2.50 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S5) MV-BUS-T23-SW MV-FDR-A-50/51 12.47 2.89 2.86 2.51 2.49 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S5)

MV-BUS-T24-SW

MV-SWGR-FUSE-

T24

12.47 2.94 2.91 2.76 2.73 0.0083 0.0000 Yes SWG 152 1 36 0.03 (*S9)

MV-BUS-T2-SW

MV-200E-XFMR-

2-FUSE 12.47 2.85 2.82 2.77 2.75 0.0042 0.0000 Yes SWG 152 0 36 0.01 (*S7)

MV-BUS-T3-SW

MV-200E-XFMR-

3-FUSE 12.47 2.85 2.82 2.70 2.68 0.0042 0.0000 Yes SWG 152 0 36 0.01 (*S7)

MV-BUS-T4-SW MV-FDR-G-50/51 12.47 2.86 2.84 2.68 2.65 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S8) MV-BUS-T6-SW MV-FDR-B-50/51 12.47 2.79 2.76 2.57 2.55 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S3) MV-BUS-T7-SW MV-FDR-B-50/51 12.47 2.88 2.86 2.66 2.64 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S3)

MV-BUS-T8-SW MV-FUSE-SWGR-

C-3

12.47 2.41 2.03 2.05 1.73 0.3891 0.0000 Yes SWG 152 21 36 0.72 (*N3)

MV-BUS-T9-SW MV-FDR-A-50/51 12.47 2.79 2.77 2.42 2.40 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S5) MV-SWGR-200 MV-FDR-E-50/51 12.47 2.81 2.78 2.71 2.68 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S0) MV-SWGR-209 MV-FDR-A-50/51 12.47 2.71 2.69 2.49 2.47 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S4) MV-SWGR-C MV-FDR-C-50/51 12.47 2.89 2.87 2.54 2.52 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S0) MV-SWGR-F MV-FDR-F-50/51 12.47 2.94 2.92 2.76 2.73 0.0167 0.0500 Yes SWG 152 6 36 0.23 (*S9)

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P-206-EQUIP

P-206-EQUIP-

MAIN-CB

0.48 10.98 7.11 10.67 6.90 0.05 0.0000 Yes PNL 25 18 18 1.1 (*S3)

T13 HS MV-FDR-A-50/51 12.47 2.83 2.80 2.80 2.78 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S0) T21 HS MV-FDR-B-50/51 12.47 2.70 2.67 2.49 2.47 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S3)

T232 HS

244-XFMR-232-

CB

0.48 8.82 5.89 8.82 5.89 0.0113 0.0000 Yes PNL 25 6 18 0.21 (*S10)

T26 HS MV-FDR-A-50/51 12.47 2.73 2.71 2.70 2.68 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S0) T27 HS MV-FDR-A-50/51 12.47 2.71 2.69 2.68 2.66 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S0) T28-HS MV-FDR-A-50/51 12.47 2.55 2.53 2.53 2.51 0.0167 0.0500 Yes SWG 152 6 36 0.19 (*S0) T29 HS MV-FDR-A-50/51 12.47 2.57 2.56 2.55 2.53 0.0167 0.0500 Yes SWG 152 6 36 0.20 (*S0) T30 HS MV-FDR-A-50/51 12.47 2.70 2.68 2.68 2.66 0.0167 0.0500 Yes SWG 152 6 36 0.21 (*S0) T31 HS MV-FDR-A-50/51 12.47 2.86 2.83 2.83 2.81 0.0167 0.0500 Yes SWG 152 6 36 0.22 (*S0)

T4-ECB MV-FUSE-T4 0.48 13.53 7.22 13.36 7.12 0.4816 0.0000 Yes PNL 25 65 18 9.9 (*N3)

T5 HS MV-SWGR-FUSE-

T5

12.47 1.45 1.23 1.35 1.14 1.019 0.0000 Yes SWG 152 27 36 0.91 (*N3)

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PPE Level Notes:

(*N11) - Out of IEEE 1584 Range, Lee Equation Used. Applicable for Open Air only. Existing Equipment type is not Open Air!

(*N2) < 80% Cleared Fault Threshold

(*N3) - Arcing Current Low Tolerances Used

(*N4) - Equipment Specific Equations Used

(*N9) - Max Arcing Duration Reached

(*N20a) - Equipment Evaluation Marginal for Protective Device

(*N20b) - Equipment Evaluation Marginal for Bus

(*N21a) - Equipment Evaluation Failed, OVERDUTIED PROTECTIVE DEVICE EQUIPMENT FOUND - Inappropriate to provide arc-flash hazard results.

(*N21b) - Equipment Evaluation Failed, OVERDUTIED BUS EQUIPMENT FOUND - Inappropriate to provide arc-flash hazard results.

(*S0) - Base Project

(*S1) - Fed From Blaire Road

(*S2) - Both Utilities, Tie Open

(*S3) - Feeder-A Out of Service

(*S4) - Feeder-B Out of Service

(*S5) - Feeder-C Out of Service

(*S6) - Feeder-D Out of Service

(*S7) - Feeder-E Out of Service

(*S8) - Feeder-F Out of Service

(*S9) - Feeder-G Out of Service

(*S10) - Generators in service

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Appendix B AFHA Stickers

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Appendix C SKM System Diagram

TO CBL-21-SDS

REFER TO SHEET E5

TO CBL-222-MDP

REFER TO SHEET E5

TO CBL-T31-MDP

REFER TO SHEET E4

TO CBL-249-MSGC

REFER TO SHEET E24

TO CBL-T226-SDS

REFER TO SHEET E5

TO CBL-239-SWGR-3

REFER TO SHEET E21

TO CBL-209-SDS

REFER TO SHEET E17

TO CBL-200-SWBD-B

REFER TO SHEET E4

TO 200E-BUSWAY-MSGA (RIGHT)

REFER TO SHEET E8TO 200E-BUSWAY-MSGA (LEFT)

REFER TO SHEET E9

TO CBL-210-MDP

REFER TO SHEET E18

TO CBL-203-MDP

REFER TO SHEET E12

TO CBL-204-MDP-204

REFER TO SHEET E13 TO CBL-205-MDP-205

REFER TO SHEET E14

TO 206-CBL-MSB

REFER TO SHEET E15TO CBL-244-SDS

REFER TO SHEET E16

TO CBL-212-MSWB

REFER TO SHEET E19 TO CBL-240-LN-1-DP

REFER TO SHEET E22

TO CBL-235-SDS

REFER TO SHEET E18

TO 200E-BUSWAY-MSGB

REFER TO SHEET E9

TO CBL-200-SWBD-A

REFER TO SHEET E3

TO CBL-202-N-1A-DP

REFER TO SHEET E11

TO CBL-T4-ECB

REFER TO SHEET E7

TO CBL-232-SDS

REFER TO SHEET E20

TO CBL-245-MDP

REFER TO SHEET E22

TO CBL-T26-SDS

REFER TO SHEET E4TO CBL-T30-MDP

REFER TO SHEET E4

TO CBL-248-MSWB

REFER TO SHEET E23

TO CBL-1-SDS

REFER TO SHEET E3

TO CBL-36-SDS

REFER TO SHEET E3

UTIL-BLAIRE RD CKT 207D2UTIL-CONY RD CKT 216D1

MV-246-SWGR-A

MV-SW-T16-1 MV-SW-T16-2

MV-BUS-T16-SW

MV-SW-T16

MV-FUSE-T16

S

P

T16

MV-SW-T17-1 MV-SW-T17-2

MV-BUS-T17-SW

MV-SW-T17

MV-FUSE-T17

S

P

T17

MV-SW-T18-1 MV-SW-T18-2

MV-BUS-T18-SW

MV-SW-T18

MV-FUSE-T18

S

P

T18

MV-SW-T19-1 MV-SW-T19-2

MV-BUS-T19-SW

MV-SW-T19

MV-FUSE-T19

S

P

T19

MV-SW-T20-1

MV-SW-T20-2

MV-BUS-T20-SW

MV-SW-T20

MV-FUSE-T20

S

P

T20

MV-SW-T21

MV-FUSE-T21

S

PT21

MV-SW-T22-1

MV-SW-T22-2

MV-BUS-T22-SW

MV-SW-T22

MV-FUSE-T22

S

P T22

MV-SW-T23-1 MV-SW-T23-2

MV-BUS-T23-SW

MV-SW-T23

MV-FUSE-T23

S

P

T23

MV-BUS-T24-SW

MV-SW-T24

MV-FUSE-T24

S

P

T24

MV-SW-T26

MV-FUSE-T26

S

P T26

MV-SW-T27

MV-FUSE-T27

S

P T27

MV-SW-POLE-T28

MV-FUSE-POLE-T28

S

P T28

MV-SW-T29

MV-FUSE-T29

S

P T29

MV-SW-T30

MV-FUSE-T30

S

P

T30

MV-SW-T31

MV-FUSE-T31

S

P

T31

MV-SW-T15-1

MV-SW-T15-2

MV-BUS-T15-SW

MV-SW-T15

MV-FUSE-T15

S

P

T15

MV-SW-T14-2

MV-BUS-T14-SW

MV-SW-T14

MV-FUSE-T14

S

P

T14

MV-SW-T12-1 MV-SW-T12-2

MV-BUS-T12-SW

MV-SW-T12

MV-FUSE-T12

S

P

T12

MV-SW-T13

MV-FUSE-T13

S

P

T13

MV-SW-T11-1 MV-SW-T11-2

MV-BUS-T11-SW

MV-SW-T11

MV-FUSE-T11

S

P

T11

MV-SW-T10-1 MV-SW-T10-2

MV-BUS-T10-SW

MV-SW-T10

MV-FUSE-T10

S

P

T10

MV-SW-T9-A

MV-SW-T9-2

MV-BUS-T9-SW

MV-SW-T9

MV-FUSE-T9

S

P

T9

MV-BUS-T8-SW

MV-SW-T8

S

P

T8

MV-SW-T7-1 MV-SW-T7-2

MV-BUS-T7-SW

MV-SW-T7

MV-FUSE-T7

S

P

T7

MV-SW-T6-1 MV-SW-T6-2

MV-BUS-T6-SW

MV-SW-T6

MV-FUSE-T6

S

P

T6

MV-SWGR-FUSE-T5

S

P T5

Open MV-SWGR-SW-D

MV-SWGR-SW-E

MV-SWGR-200

S

P

T4

S

P XFMR-3

S

P

XFMR-2

MV-CBL-XFMR-2

MV-CBL-XFMR-3

S

P

XFMR-1

MV-CBL-XFMR-1

MV-200E-SWGR

MV-200E-XFMR-1-FUSE MV-200E-XFMR-2-FUSE

MV-200E-XFMR-3-FUSE

MV-SW-200E-XFMR-3MV-SW-200E-XFMR-2MV-SW-200E-XFMR-1

MV-SW-200E-SWGR-D

Open MV-SW-200E-SWGR-E

MV-BUS-T1-SW MV-BUS-T2-SW MV-BUS-T3-SW

MV-FUSE-SWGR-C-3

MV-FUSE-SWGR-C-4

MV-SW-SWGR-C-1

Open MV-SW-SWGR-C-2

MV-SWGR-C

MV-CBL-FDR-C

MV-FDR-A-52

MV-FDR-B-50/51

MV-FDR-C-52

MV-FDR-D-52

MV-FDR-F-52

MV-CBL-T5

MV-CBL-T7-T18 MV-CBL-T18-T17 MV-CBL-T17-T19 MV-CBL-T19-T6 MV-CBL-T6-T10 MV-CBL-T10-T12

MV-CBL-T15-T11

MV-CBL-MH8-T15

MV-CBL-T12-MH8

MV-CBL-MH8-T21

MV-CBL-T29-MH33

MV-CBL-T30-MH33

MV-CBL-MH32-MH29

MV-CBL-SW-T26

T26 HS

MV-CBL-SW-T27

MV-CBL-MH29-MH27

MV-CBL-SW-T13

T13 HS

MV-SW-T14-1

MV-CBL-MH27-MH20

MV-CBL-SW-T31

T31 HS

MV-CBL-MH20-T14

MV-CBL-T14-T22 MV-CBL-T22-T23 MV-CBL-T23-T20

MV-CBL-C-LOOP-MH23

MV-SPLICE-MH23

MV-CBL-T20-MH23 MV-CBL-MH23-T9

MV-CBL-T9-SWGR209

MV-CBL-T8-SW

MV-CBL-FDR-F-1

MV-FDR-E-52

MV-CBL-T16-T7

MV-CBL-POLE-T28

MV-CBL-POLE-T29

MV-SW-POLE-T29

T28-HS

MV-SW-T28

MV-CBL-T28-T29

MV-CBL-FDR-B

MV-SWGR-209

MV-SW-SWGR-209-B

OpenMV-SW-SWGR-209-A

MV-CBL-T11-SWGR209

MV-CBL-FDR-D-1

MV-CBL-FDR-E-1

MV-MH1A-SPLICE

MV-CBL-FDR-E-3

MV-CBL-FDR-E-2

MV-CBL-FDR-D-2

MV-CBL-FDR-A

MV-BUS-MH20-SPLICE

MV-CBL-CONY

MV-CONY-52

MV-CBL-BLAIRE

Open MV-BLAIRE-52

BUS-0142

T27 HS

MV-BUS-MH33-SPLICE

T30 HS

MV-CBL-MH33-MH32

MV-SPLICE-MH8

MV-FUSE-POLE-T29

MV-MH2A-SPLICE

MV-CBL-FDR-D-3

CBL-SWBD

SWBD-EXTERIOR

SWBD-SW-A

SWBD-SW-B

SWBD-FUSE-A

SWBD-FUSE-B

MV-FDR-A-50/51 MV-FDR-C-50/51

MV-246-SWGR-B

MV-BUS-TIE-52

MV-CBL-BUS-TIE

MV-BUS-TIE-51

MV-FDR-D-50/51 MV-FDR-E-50/51 MV-FDR-F-50/51

MV-FDR-B-52

MV-MAIN-A-51 MV-MAIN-B-51

MV-CONY-FUSE

MV-BLAIRE-FUSE

MV-216D1-50/51-SLOW

MV-207D2-50/51-FAST

MV-207D2-50/51-SLOW

MV-SWGR-F

MV-CBL-F-2

MV-BUS-T4-SW

MV-SW-G-T4

MV-FUSE-T4

MV-FDR-G-52

MV-CBL-G

MV-FDR-G-50/51

MV-SWGR-FUSE-T24

MV-SQGR-SW-T24

MV-SQGR-SW-F

Open

MV-SQGR-SW-F-T4

MV-CBL-F-3

MV-SW-F-T4

T29 HS

MV-216D1-50/51-FAST

FROM MV-FUSE-T21

REFER TO SHEET E2

FROM MV-FUSE-T13

REFER TO SHEET E2

S

PT21

CBL-1-SDS

1-SDS-MB

1-SDS

S

P

T13

CBL-36-SDS

36-SDS

36-SDS-FUSE

23-CBL-LOAD CENTER

36-LOAD CENTER-MB

36-LOAD CENTER

1-CBL-PANEL 1 1-CBL-BLDG 2,3

1-CBL-BLDG 4

1-PANEL 1-MB

1-PANEL 1

1-CBL-PANEL 2 1-FUSE BOX-CB

1-PANEL 2-MB

1-PANEL 2

1-CBL-FUSE BOX

1-FUSE BOX

1-FUSE-BLDG 2,3 1-FUSE BOX (BLDG 2,3)

1-CBL-BLDG 2 1-CBL-BLDG 3

2-FUSE-D/C

2-FUSE BOX

2-CBL-PANEL 2 2-CBL-PANEL 1

2-CBL-STREET LIGHTS

2-FUSE-STREET LIGHTS

2-STREET LIGHTS

2-PANEL 1

2-PANEL 2

2-PANEL 3 (FEED 1)-CB2-PANEL 3 (FEED 2)-CB

2-CBL-PANEL 3 (FEED 2) 2-CBL-PANEL 3 (FEED 1)

2-PANEL 3

1-FUSE-BLDG 4

1-FUSE BOX (BLDG 4)

4-CBL-FUSE D/C

3-FUSE-D/C

3-FUSE BOX

3-CBL-METER BUS

3-CBL-PANEL 3

3-PANEL 3-MB

3-PANEL 3

3-METER BUS

3-CBL-PANEL 1 3-CBL-PANEL 2

3-PANEL 1-MB 3-PANEL 2-MB

3-PANEL 1 3-PANEL 2

4-FUSE-D/C

4-FUSE BOX

4-CBL-PANEL 2 4-CBL-PP1

4-PANEL 2-MB

4-PANEL 2

4-PP-1

1-CBL-SPLICE BOX

FROM MV-FUSE-T30

FROM MV-FUSE-T26

REFER TO SHEET E2

FROM MV-FUSE-T31

REFER TO SHEET E2

S

P

T31

CBL-T31-MDP

T31-MDP-MB

T31-MDP

S

P T26

CBL-T26-SDS

T26-SDS-MB T26-SDS

S

P

T30

CBL-T30-MDP

T30-MDP-MB T30-MDP

T31-B27-CB T31-B32-CB T31-B33-CB T31-B34-CB

T31-CBL-B27 T31-CBL-B32 T31-CBL-B33 T31-CBL-B34

27-MDP-MB 32-MDP-MB 33-MDP-MB 34-MDP-MB

27-MDP 32-MDP 33-MDP 34-MDP

T26-B15-CB T26-B16-CB T26-B17-CB

T26-CBL-B15 T26-CBL-B16 T26-CBL-B17

15-MDP-MB 16-MDP-MB 17-MDP-MB

15-MDP 16-MDP 17-MDP

T30-B18-CB

T30-CBL-B18

18-MDP-MB

18-MDP

T30-B19-CB

T30-CBL-B19

19-MDP-MB

19-MDP

T30-B20-CB

T30-CBL-B20

20-MDP-MB

20-MDP

27-B89-CB

89-CBL-MDP

27-B89-MB

89-MDP

T30-B215-CB

T30-CBL-B215

215-D/C-FUSE BOX

215-FUSE-FUSE BOX

215-FUSE BOX

T26-B216-CB

T26-CBL-B216

216-D/C-FUSE BOX

216-FUSE-FUSE BOX

216-FUSE BOX

FROM MV-SW-T29

FROM MV-FUSE-T27

REFER TO SHEET E2

S

P T27

CBL-21-SDS

21-SDS

21-SDS-FUSE

LOAD-21-SDS

S

P T29

CBL-222-MDP

222-MDP-MB

222-MDP

LOAD-222-MDP

FROM SWBD-SW-A

TO 200-ATS-CRIT / LIFE SAFETY

REFER TO SHEET E10

FROM 200-ATS UPS-CB

REFER TO SHEET E10

TO 200-CBL-ATS-LS-E

REFER TO SHEET E5

SWBD-FUSE-A

CBL-200-SWBD-A

200-SWBD-A-MB

200-SWBD-A

200-DPM-CB

200-CBL-DPM

200-LE LAB-CB

200-CBL-LE-LAB

200-GEN RM ATS CRIT-CB200-PHYSICAL THERAPY-CB

200-CBL-PHSYICAL THERAPY

200-BASEMENT BIO MED-CB

200-CBL-BASEMENT BIO MED

200-NEW DENTAL CLINIC-CB

200-CBL-NEW DENTAL CLINIC

200-L1-H-CB

200-CBL-L1-H-CB

200-RESEARCH LAB-CB

200-CBL-RESEARCH LAB

200-LN6S-1-CB

200-CBL-LN6S-1

200-L1 WEST WING-CB

200-CBL-L1 WEST WING

200-ATS-UPS-CB

200-CBL-ATS-UPS

200-L3 WEST WING-CB

200-CBL-L3 WEST WING

200-MALE LOCKERS-CB

200-CBL-MALE LOCKERS

200-BASEMENT BIO MED SQ D-CB

200-CBL-BASEMENT BIO MED SQ D

200-NL-6/N-6-CB

200-CBL-NL-6/N-6

200-LAB 2ND FLR-CB

200-CBL-LAB 2ND FLR

200-POWER PANEL-CB

200-CBL-POWER PANEL

200-DP-M

200-MCC 5 WEST-CB

200-MCP 6N-CB 200-MCP 6S-CB

200-CBL-MCC 5 WEST

200-CBL-MCP 6N 200-CBL-MCP 6S

200-L-1H

E N

200-ATS-UPS

200-CBL-DP-LS

200-DP-LS

200-50 KVA UPS-CB 200-LS1-CB 200-LS2-CB 200-LS4-CB 200-LS6-CB

200-CBL-LS1 200-CBL-LS2 200-CBL-LS4 200-CBL-LS6

200-CBL-GEN RM ATS CRIT

200-MCP-6N

200-CBL-MCP-6N (SECTION 2)

200-MCP-6N (SECTION 2)

200-EF-12-CB 200-AHU-12-CB 200-P-15-CB

200-CBL-EF-12 200-CBL-AHU-12 200-CBL-P-15

200-VFD-AH-12-CB

200-VFD-AH-12

200-CBL-AHU-12-D/C

200-D/C-AH-12

200-AH-12

200-CBL-AH-12-MTR

200-AH-12-MTR

200-VFD-EF-12-CB

200-VFD-EF-12

200-CBL-EF-12-D/C

200-D/C-EF-12

200-EF-12

200-CBL-EF-21-MTR

200-EF-12-MTR

200-D/C-P-15

200-P-15

200-CBL-P-15-MTR

200-P-15-MTR

200-MCC-5

200-AH-14-CB 200-RF-14-CB 200-EF-14-CB

200-VFD-AH-14

200-CBL-AHU-14-D/C

200-D/C-AH-14

200-AH-14

200-CBL-AH-14-MTR

200-AH-14-MTR

200-CBL-AH-14

200-CBL-RF-14

200-FUSE-RF-14

200-RF-14

200-CBL-RF-14-MTR

200-RF-14-MTR

200-CBL-EF-14

200-FUSE-EF-14

200-EF-14

200-CBL-EF-14-MTR

200-EF-14-MTR

200-MCP-6S (SECTION 1)

200-EF-11-CB

200-LN6S-1-MB

200-LN6S-1200-CBL-ATS UPS

200-CBL-MCP-6S (SECTION 2)

200-MCP-6S (SECTION 2)

200-CBL-VFD-EF-11

200-VFD-EF-11-CB

200-VFD-EF-11

200-CBL-EF-11

200-D/C/-EF-11

200-EF-11

200-CBL-EF-11-MTR

200-EF-11-MTR

200-P-16-CB 200-EF-29-CB 200-EF-15-CB 200-AH-11-CB

200-CBL-P-16 200-CBL-EF-29 200-CBL-EF-15 200-CBL-AH-11

200-D/C-P-16

200-P-16

200-CBL-P-16-MTR

200-…