SAMPLE. Arc Flash Study ABC CONTENTS. City, State. John D. Aeiker, PE, CSP Consultant

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1 Taking the Flash Out of Electrical afety October 3, 07 Arc Flash tudy repared for: City, tate CONTENT Arc Flash tudy Overview Incident Energy ummary Report Equipment Evaluation Report E oster Arc Flash Model Drawing repared by: John D. Aeiker, E, C Consultant AMLE (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

2 October 3, 07 October 3, 07 City, tate - Arc Flash tudy Thank you for the opportunity to provide this Arc Flash tudy of the electrical distribution system for the facility in City, tate. The current version (v7.0) of KM ower Tools Arc Flash modeling, equipment evaluation, short circuit current analysis and over current device coordination software programs were used to determine Arc Flash incident energy levels for this project. IEEE tandard 584 modeling software and NFA 70E 0 edition was used for verification. We have documented the results of the calculations and models on two () drawings based on the facility distribution system. The calculations have been based on data collected during my on-site visit on January 7-, 07. The results contained in this report are based on the design and information available at the time this report was completed. Any changes made to equipment settings or system configuration will invalidate the results contained in this report and may result in a more hazardous condition thus, necessitating a follow-up review of this arc flash study. The Incident Energy ummary Report and Equipment Evaluation Report provide the detailed results however; the six (6) highlights of this Arc Flash tudy are summarized as follows: ) Utility Fault Current Contribution The site-specific short circuit fault current available at the primary incoming bus for the incoming utility service to the facility in City was made available from the local utility for this Arc Flash tudy by from Dan omebody dated January, 07. ) lant Electric Room and Compressor Room Main DANGEROU Level Operation of the 3000A Main Fused Disconnects fed from utility transformers is indicated as DANGEROU (>40 calories/cm). This is not unusual for protective devices located on the secondary of transformers fed from a utility or at the incoming main lugs of a power distribution center as the transformer significantly increases the response time of the upstream protective device. AMLE Also, operation of all the protective devices connected to both the lant Electric Room Main Bus and the Compressor Room Main Bus is indicated as DANGEROU (>40 calories/cm). These DANGEROU levels may be mitigated by increasing the working distance to enable the use of AF E Category 4. ee the notes on the arc flash model drawing for details. Handle extensions may be available to achieve this increased working distance. Remote operation of the switches or circuit breakers may also be an option to consider. (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

3 October 3, ) ystem Miscoordination The Incident Energy ummary Report indicates a few areas of over current device miscoordination, see the (*N5) notations in the arc flash summary report. In a few cases, subpanel branch breakers are coordinated to the bus duct fused disconnects bypassing the subpanel main breakers. In an industrial power system, miscoordination is not an uncommon situation to find and it typically works in your favor relative to arc flash as the speed of the upstream protective device reduces the incident energy exposure. These upstream protective devices function in this manner only in an overload condition. As we understand the system is reliable and functions well, our recommendation is to leave these devices and their settings in their current state. While a detailed system analysis could be considered, it should be noted that this power system device coordination analysis could consume significant engineering and field monitoring cost. 4) Equipment Evaluation Report The Equipment Evaluation Report indicates a few failures or marginal ratings. These are primarily in two areas of over current device ratings in the Device Evaluation ummary Reports. One area is the hort Circuit Current Available ratings for a device > 80% CCA ratings and the other is related to connected load to the device > 80% for continuous load ratings. a. In the case of the available short circuit current ratings, these devices are continuous duty rated and thus they are suitable for the service as designed and intended. This is a software default value based on the NEC and in this case is not applicable to your system. b. The second area is relative to connected load greater than 80% and 00%. The software cannot determine the real horsepower of a particular motor and assumes it to be 00%loaded. It cannot determine true loading of multiple motors operated in a lead / lag configuration. It calculates to 00% load on every device connected. It cannot calculate diversity of loads per the NEC. This is the only reason you will find a marginal rating on a device due to loading > 80% or a failure rating on a device due to loading > 00%. 5) Equipment Labeling The switchboard and motor control center (MCC) sections will be labeled to the actual incident energy levels per the requirements of IEEE 584 and NFA 70E for testing, troubleshooting and interacting with the device with exposed energized parts. All disconnects that could require maintenance, testing or troubleshooting will be labeled to the requirements of NFA 70E 30.5(H); extracted text from provided next. AMLE NFA 70E, 05 Edition (g. 8) 30.5 (H) Equipment Labeling. Electrical equipment such as switchboards, panel boards, industrial control panels, meter socket enclosures, and motor control centers that are in other than dwelling units and that are likely to require examination, adjustment, servicing, or maintenance while energized shall be fieldmarked with a label containing all the following information: () Nominal system voltage () Arc flash boundary (3) At least one of the following: a. Available incident energy and the corresponding working distance, or the arc flash E category in Table 30.7(C)(5)(A)(b) or Table 30.7(C)(5)(B)for the equipment, but not both (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

4 October 3, 07 4 b. Minimum arc rating of clothing c. ite-specific level of E Exception: Labels applied prior to eptember 30, 0 are acceptable if they contain the available incident energy or required level of E. The method of calculating and the data to support the information for the label shall be documented. Where the review of the arc flash hazard risk assessment identifies a change that renders the label inaccurate, the label shall be updated. The owner of the electrical equipment shall be responsible for the documentation, installation, and maintenance of the field-marked label. 6) Operation of Electrical Equipment The motor control centers and distribution panels are typical lockout points. The calculated energy levels as indicated on the drawings are often in excess of. calories/cm and as such would require some level of arc rated E. NFA 70E, 0 Edition (g. 4) 30. Electrically afe Working Conditions (a) Energized Work (4) Normal Operation. Normal operation of electric equipment shall be permitted where all of the following conditions are satisfied: ) The equipment is properly installed. ) The equipment is properly maintained. 3) The equipment doors are closed and secured. 4) All equipment covers are in place and secured. 5) There is no evidence of impending failure. AMLE Informational Note: The phrase properly installed means that the equipment is installed in accordance with applicable industry codes and standards and the manufacturer s recommendations. The phrase properly maintained means that the equipment has been maintained in accordance with the manufacturer s recommendations and applicable industry codes and standards. The phrase evidence of impending failure means that there is evidence such as arcing, overheating, loose or bound equipment parts, visible damage, or deterioration. (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

5 October 3, 07 5 NFA 70E, 0 Edition (g. 35) Table 30.7(C) (5) (A)(a) Arc Flash Hazard Identification for Alternating Current (ac) and Direct Current (dc) ystems Task Normal operation of a circuit breaker (CB), switch, contactor, or starter All of the following: Equipment Condition* The equipment is properly installed The equipment is properly maintained All equipment doors are closed and secured All equipment covers are in place and secured There is no evidence of impending failure One or more of the following: The equipment is not properly installed The equipment is not properly maintained Equipment doors are open or not secured Equipment covers are off or not secured There is evidence of impending failure Arc Flash E Required NFA 70E makes it very clear the determination of this condition can only be made by the responsible person in charge of the facility. If the facility has evidence and documentation as per the requirements of NFA 70E 05.3, 05.4 and 0.5 that all five conditions are met, then no arc rated E would be required to operate disconnects with the doors properly closed and latched. "In our experience, it is very rare that equipment is maintained to the exact specifications of the manufacturer. For reference see NFA extracts listed below. AMLE A safer approach could be taken. Other facilities with similar situations provide an appropriate Arc Rated switchers coat, face shield and leather gloves in each of the MCC rooms and then instruct the task qualified workers when performing the lock out procedure to wear the coat, hard hat, face shield and gloves to interact with the disconnect in question. If this approach is taken, the under layer clothing shall be 00% natural fiber non-melting clothing per NFA 70E. After the disconnect switch is operated to the off position, then lock out procedures can be performed without any arc rated E. NFA 70E, 0 Edition (g. 44 & 45) 05.3 General Maintenance Requirements. Electrical equipment shall be maintained in accordance with manufacturers instructions or industry consensus standards to reduce the risk associated with failure. The equipment owner or the owner s designated representative shall be responsible for maintenance of the electrical equipment and documentation. Informational Note: Common industry practice is to apply test or calibration decals to equipment to indicate the test or calibration date and overall condition of equipment that has been tested and maintained in the field. These decals provide the employee immediate indication of last maintenance date and if the tested device or system was found acceptable on the date of test. This local information can assist the employee in the assessment of overall electrical equipment maintenance status. No Yes (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

6 October 3, Overcurrent rotective Devices. Overcurrent protective devices shall be maintained in accordance with the manufacturers instructions or industry consensus standards. Maintenance, tests, and inspections shall be documented. 0.5 rotective Devices. rotective devices shall be maintained to adequately withstand or interrupt available fault current. Informational Note: Improper or inadequate maintenance can result in increased opening time of the overcurrent protective device, thus increasing the incident energy. The calculations in this study and resultant incident energy levels are based upon the overcurrent devices (overcurrent relays, circuit breakers, and fused disconnects) operating as designed and being properly maintained. Maintenance intervals should be based on the manufacturer s recommendations or industry consensus testing standards. This is typically a 3 to 5 year interval based on the conditions of the equipment. The InterNational Electrical Testing Association (NETA) provides guidance documents for adjusting these intervals based on location conditions. It is important to note that in many cases, changing the trip settings of the equipment in place in the facility is relatively simple to do. Full-function circuit breakers and time overcurrent relay devices often have adjustable long-time, short-time and instantaneous (LI) trip units that provide the unique ability to modify or change the trip settings with a small screwdriver. As any changes to the equipment settings may have a significant impact on the incident energy levels found in the electrical system, the facility should have a change management process in place to maintain the settings as found for this Arc Flash tudy. Any change to the site distribution system or a change by the utility relative to your incoming service fault current could necessitate a review of this arc flash study. Annex H of NFA 70E provides guidance for a clothing system to calories/cm and as such on all the model drawings anytime there is a E Category 3 situation it will be indicated as such with the specific calories/cm exposure. This can help you if your clothing supplier is providing calories/cm clothing. This needs to be verified to what level of protection your E uniform clothing provides. This can be your decision after verification of the ATV of the clothing supplied, documented and communicated to the affected personnel. Layering of Arc rated clothing is allowed as long as it has been tested as a system. This information is available on the clothing manufacturers websites as well as on ArcWear.com. As an example, Westex has tested their Indura Ultrasoft shirt with their T-shirt (typical rental company provided material) and the combination achieves 0 calories/cm. Tyndale s 9 calories/cm shirt has been tested with various other 4 calories/cm T- shirts achieving slightly higher overall results when used together. AMLE Any exposures greater than E Category (> 4 calories/cm) requires the use of an arc rated face shield and balaclava or an arc rated face shield hood assembly. NFA 70E requires the arc flash study to be reviewed every five years. If the utility contacts you for a service interruption, ask the question for what purpose. If they are upgrading the transmission line or transmission / distribution transformers, this is your indication to find out what the change will be to your incoming fault current and relay clearing times which can affect the arc flash calculations. (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

7 October 3, 07 7 If the utility has not changed anything relative to your incoming service fault current and you have not changed anything in your distribution system on site, then the review can be a very simple process of noting this fact every 5 years. A verification from the utility of the utility information found on the arc flash study document and also contained on the UB drive is all that would be required. NFA 70E requires initial qualified training and re-training every three years for your qualified electrical workers. We typically recommend electrical safety training after the labeling activity as this can provide a customized session for your specific equipment and what the labels require as far as proper work practices. Within the documentation binder for this study are copies of all the associated information; this summary report, the one-line drawings from KM, the Incident Energy ummary Report, and the Equipment Evaluation Report. All of the relative files in DF, native Microsoft Office format and native KM format are provided on an UB drive for file retention. It is recommended that these files be retained in a secure location within your organization. also retains the files backed up to a secured cloud service. I keep an exact duplicate of the documentation binder in my office so if there is ever a question, we can both look at the exact same piece of information at any time in the future. If I should be traveling, I have all the files on my laptop with me. lease call John Aeiker, for any additional clarification relative to this report. Thank you, john.aeiker@e-hazard.com AMLE (50) Office (50) Fax 30 Eastpoint arkway Louisville, KY info@e-hazard.com

8 October 3, 07 Incident Energy ummary Report A B C D E F G H I J K L M N O 3 4 Bus Name rotective Device Name Bus kv Bus Bolted Fault (ka) Bus Arcing Fault (ka) rot Dev Bolted Fault (ka) rot Dev Arcing Fault (ka) Trip/ Delay Time (sec.) Breaker Opening Time/Tol (sec.) Ground Equip Type Gap (mm) Arc Flash Boundary (in) Working Distance (in) Incident Energy (cal/cm) E Level Bus - Begin Bus - End Bus 0 - Begin Bus 0 - End Bus - Begin Bus - End Bus 3 - Begin Bus 3 - End Bus 4 - Begin Bus 4 - End Bus 5 - Begin Bus 5 - End Bus 6 - Begin Bus 6 - End Bus 7 - Begin Bus 7 - End Bus 8 - Begin Bus 8 - End Bus 9 - Begin Bus 9 - End BU-0003 lant Elec - Bus lant Elec - Bus lant Elec - Bus 0 lant Elec - Bus 0 lant Elec - Bus lant Elec - Bus lant Elec - Bus 3 lant Elec - Bus 3 lant Elec - Bus 4 lant Elec - Bus 4 lant Elec - Bus 5 lant Elec - Bus 5 lant Elec - Bus 6 lant Elec - Bus 6 lant Elec - Bus 7 lant Elec - Bus 7 lant Elec - Bus 8 lant Elec - Bus 8 lant Elec - Bus 9 lant Elec - Bus 9 Compressor Room Utility Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes WG Level Level Level Level Level Level (*N) (*N) Comp. Room - Typ Cutout Comp. Room - Typ Yes. 6 A/50A Bus Comp. Room - Typ A/50A CB Comp. Room - Typ Yes A/80A Bus 30A/80A CB Compressor Room Main Compressor Room Utility Yes 306 Dangerous! (*N3) 8 Bus Cutout (*N5) (*N9) (*N) Compressor Room Main Compressor Room Utility Yes 307 Dangerous! (*N3) 9 FD Bus Cutout (*N9) (*N) Furnace 70 Bus lant Elec - Furnace Yes CB Furnace 70 Bus lant Elec - Furnace Yes CB Furnance 70 Heater lant Elec - Furnace Yes Level 4 (*N9) 3 CB Furnance 70 Heater lant Elec - Furnace Yes 3 3 Level 4 (*N9) 33 CB lant Electric Main FD lant Electric Utility Yes 30 8 Dangerous! (*N) 34 Bus Cutouts 35 lant Electric Room Main Bus lant Electric Utility Cutouts AMLE Yes 3 8 Dangerous! (*N5) (*N) age of 5

9 October 3, 07 Incident Energy ummary Report A B C D E F G H I J K L M N O Bus Name rotective Bus Bus Bus rot Dev rot Dev Trip/ Breaker Ground Equip Gap Arc Working Incident E Level Device kv Bolted Arcing Bolted Arcing Delay Opening Type (mm) Flash Distance Energy 3 Name Fault Fault Fault Fault Time Time/Tol Boundary (in) (cal/cm) 4 (ka) (ka) (ka) (ka) (sec.) (sec.) (in) R Compressors Comp. Room Yes 0.4 Level 36 Compressor CB Typ 00A Load - Bus Typ 00A FD - Bus Yes Typ 00A Load - Bus 0 Typ 00A FD - Bus Yes Typ 00A Load - Bus Typ 00A FD - Bus Yes Typ 00A Load - Bus 3 Typ 00A FD - Bus Yes Typ 00A Load - Bus 4 Typ 00A FD - Bus Yes Typ 00A Load - Bus 5 Typ 00A FD - Bus Yes (*N3) 4 Typ 00A Load - Bus 6 Typ 00A FD - Bus Yes Typ 00A Load - Bus 7 Typ 00A FD - Bus Yes 5 0. (*N3) 44 Typ 00A Load - Bus 8 Typ 00A FD - Bus Yes Typ 00A Load - Bus 9 Typ 00A FD - Bus Yes 4 0. (*N3) 46 Typ 00A Load - Bus Typ 00A FD - Bus Yes Typ 00A Load - Bus 0 Typ 00A FD - Bus Yes Typ 00A Load - Bus Typ 00A FD - Bus Yes Typ 00A Load - Bus 3 Typ 00A FD - Bus Yes Typ 00A Load - Bus 4 Typ 00A FD - Bus Yes Typ 00A Load - Bus 5 Typ 00A FD - Bus Yes Typ 00A Load - Bus 6 Typ 00A FD - Bus Yes Typ 00A Load - Bus 7 Typ 00A FD - Bus Yes Typ 00A Load - Bus 8 Typ 00A FD - Bus Yes Typ 00A Load - Bus 9 Typ 00A FD - Bus Yes Typ 08V anel - Bus Typ 08V XFMR FD - Bus Typ 08V anel - Bus 0 Typ 08V XFMR FD - Bus 0 AMLE Yes. (*N5) Yes. (*N5) age of 5

10 October 3, 07 Incident Energy ummary Report A B C D E F G H I J K L M N O Bus Name rotective Bus Bus Bus rot Dev rot Dev Trip/ Breaker Ground Equip Gap Arc Working Incident E Level Device kv Bolted Arcing Bolted Arcing Delay Opening Type (mm) Flash Distance Energy 3 Name Fault Fault Fault Fault Time Time/Tol Boundary (in) (cal/cm) 4 (ka) (ka) (ka) (ka) (sec.) (sec.) (in) Typ 08V anel - Bus Typ 08V XFMR FD Yes. (*N5) 59 Bus Typ 08V anel - Bus 3 Typ 08V XFMR FD Yes. (*N5) 60 Bus 3 Typ 08V anel - Bus 4 Typ 08V XFMR FD Yes. (*N5) 6 Bus 4 Typ 08V anel - Bus 5 Typ 08V XFMR FD Yes. (*N5) 6 Bus 5 Typ 08V anel - Bus 6 Typ 08V XFMR FD Yes. (*N5) 63 Bus 6 Typ 08V anel - Bus 7 Typ 08V XFMR FD Yes. (*N5) 64 Bus 7 Typ 08V anel - Bus 8 Typ 08V XFMR FD Yes. (*N5) 65 Bus 8 Typ 08V anel - Bus 9 Typ 08V XFMR FD Yes. (*N5) 66 Bus 9 Typ 40V anel - Bus Typ 40V XFMR FD Yes. (*N3) (*N5) 67 Bus Typ 40V anel - Bus Typ 40V XFMR FD Yes. (*N3) (*N5) 68 0 Bus 0 Typ 40V anel - Bus Typ 40V XFMR FD Yes. (*N3) (*N5) 69 Bus Typ 40V anel - Bus 3 Typ 40V XFMR FD Yes. (*N3) (*N5) 70 Bus 3 Typ 40V anel - Bus 4 Typ 40V XFMR FD Yes. (*N3) (*N5) 7 Bus 4 Typ 40V anel - Bus 5 Typ 40V XFMR FD Yes. (*N3) (*N5) 7 Bus 5 Typ 40V anel - Bus 6 Typ 40V XFMR FD Yes. (*N3) (*N5) 73 Bus 6 Typ 40V anel - Bus 7 Typ 40V XFMR FD Yes. (*N3) (*N5) 74 Bus 7 Typ 40V anel - Bus 8 Typ 40V XFMR FD Yes. (*N3) (*N5) 75 Bus 8 Typ 40V anel - Bus 9 Typ 40V XFMR FD Yes. (*N3) (*N5) Typ 30A Load - Bus Bus 9 Typ 30A FD - Bus Yes Typ 30A Load - Bus 0 Typ 30A FD - Bus Yes AMLE Typ 30A Load - Bus Typ 30A Load - Bus 3 Typ 30A Load - Bus 4 Typ 30A Load - Bus 5 Typ 30A Load - Bus 6 Typ 30A Load - Bus 7 Typ 30A FD - Bus Typ 30A FD - Bus 3 Typ 30A FD - Bus 4 Typ 30A FD - Bus 5 Typ 30A FD - Bus 6 Typ 30A FD - Bus Yes 0 Yes 0 Yes 0 Yes 0 Yes 0 Yes age 3 of 5

11 October 3, 07 Incident Energy ummary Report A B C D E F G H I J K L M N O Bus Name rotective Bus Bus Bus rot Dev rot Dev Trip/ Breaker Ground Equip Gap Arc Working Incident E Level Device kv Bolted Arcing Bolted Arcing Delay Opening Type (mm) Flash Distance Energy 3 Name Fault Fault Fault Fault Time Time/Tol Boundary (in) (cal/cm) 4 (ka) (ka) (ka) (ka) (sec.) (sec.) (in) Typ 30A Load - Bus 8 Typ 30A Load - Bus 9 Typ anels & Field Typ 30A FD - Bus 8 Typ 30A FD - Bus 9 Typical LL anel Branch Yes 0 Yes 0 Yes (*N5) (*N) 87 Devices Typical LL anel Field CB Typical LL anel Branch Yes (*N) 88 Device CB : Nonmelting or cal/cm^ # = 7 (*N) - Out of IEEE Untreated Fiber with 584 Range, Lee Weight >= 4.5 oz/sq yd Equation Used. Applicable for Open Air only. Existing Equipment type is not 89 Open Air! Level : Arc-rated shirt & pants or arc-rated coverall Level : Arc-rated shirt & pants or arc-rated coverall Level 3: Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit Level 4: Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit Level Dangerous!: DO NOT WORK ON LIVE! cal/cm^ #Level = 6 (*N3) - Arcing Current Low Tolerances Used cal/cm^ #Level = (*N5) - Miscoordinated, Upstream Device Tripped cal/cm^ #Level 3 = 0 (*N9) - Max Arcing Duration Reached cal/cm^ #Level 4 = (*N5) - Report as category 0 if fed by one transformer size < kva AMLE cal/cm^ #Danger = 4 (*N) - Equipment Evaluation Failed, OVERDUTIED EQUIMENT FOUND - Inappropriate to provide arc-flash hazard results. For additional information refer to NFA 70 E, tandard for NFA 70E 0 Annex D.7 - IEEE 584 Bus Report ( - 80% Cleared Electrical afety in the Workplace. Fault Threshold, include Ind. Motors for 5.0 Cycles), mis-coordination checked 95 : Nonmelting or Untreated Fiber with Weight >= 4.5 oz/sq yd, afety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, afety 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). 96 Level : Arc-rated shirt & pants or arc-rated coverall, Hardhat + Arc-rated hard hat liner + afety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, Leather work shoes, afety 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). age 4 of 5

12 October 3, 07 Incident Energy ummary Report A B C D E F G H I J K L M N O Bus Name rotective Bus Bus Bus rot Dev rot Dev Trip/ Breaker Ground Equip Gap Arc Working Incident E Level Device kv Bolted Arcing Bolted Arcing Delay Opening Type (mm) Flash Distance Energy Name Fault Fault Fault Fault Time Time/Tol Boundary (in) (cal/cm) (ka) (ka) (ka) (ka) (sec.) (sec.) (in) Level : Arc-rated shirt & pants or arc-rated coverall, Hardhat + Arc-rated hard hat liner + afety Glasses or Goggles + Ear Canal Inserts, Leather Gloves, Leather work shoes, afety 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: Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit, Hardhat + Arc-rated hard hat liner + afety Glasses or Goggles + Ear Canal Inserts, Arc-rated Gloves, Leather work shoes, afety glasses, electrically rated hard hat with hood and face shield. Hearing protection., 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, Arcrated 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: Arc-rated shirt & pants + arc-rated coverall + arc-rated arc flash suit, Hardhat + Arc-rated hard hat liner + afety Glasses or Goggles + Ear Canal Inserts, Arc-rated Gloves, Leather work shoes, afety 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, Arcrated 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). 00 Level Dangerous!: DO NOT WORK ON LIVE!, DO NOT WORK ON LIVE!, DO NOT WORK ON LIVE!, DO NOT WORK ON LIVE!, DO NOT WORK ON LIVE!, No FR Category Found 0 AMLE age 5 of 5

13 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L Comp. Room - Compressor CB ass FLA, pectra RM (*N) 0 Compressor Room Main Bus 70-0A GE FLA 36.8 Comp. Room - Typ A/50A CB ass FLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus 70-0A GE FLA Comp. Room - Typ 30A/80A CB ass ELA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus 5-50A GE ELA Compressor Room Main FD ass A4BY, V Class L (*N) 8 Compressor Room Main FD Bus 00-0A GOULD HAWMUT A4BY 3.0 Compressor Room Main W ass T ower Break (*N) 0 Compressor Room Main FD Bus LI, 3000A GE T 3.0 Compressor Room Utility Cutout Fail M-4, kv E-Rated * BU-004 3E-00E tandard peed *73.86 &C M-4, 00E.90 *34.58 lant Elec - Bus ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA lant Elec - Bus 0 ass GLA, pectra RM 40.7 (*N) 0 AMLE lant Electric Room Main Bus -A GE GLA lant Elec - Bus ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA lant Elec - Bus 3 ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA lant Elec - Bus 4 ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA lant Elec - Bus 5 ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA lant Elec - Bus 6 ass GLA, pectra RM 4.95 (*N) 0 Compressor Room Main Bus -A GE GLA age of 6

14 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L lant Elec - Bus 7 ass GLA, pectra RM 40.7 (*N) 0 lant Electric Room Main Bus -A GE GLA lant Elec - Bus 8 ass GLA, pectra RM 40.7 (*N) 0 lant Electric Room Main Bus -A GE GLA lant Elec - Bus 9 ass GLA, pectra RM 40.7 (*N) 0 lant Electric Room Main Bus -A GE GLA lant Elec - Furnace 70 CB ass GLA, pectra RM (*N) 0 lant Electric Room Main Bus -A GE GLA lant Elec - Furnace 70 CB ass GLA, pectra RM (*N) 0 lant Electric Room Main Bus -A GE GLA lant Electric Room Main FD ass A4BY, V Class L (*N) 8 lant Electric Main FD Bus 00-0A GOULD HAWMUT A4BY 0.6 lant Electric Room Main W ass T ower Break (*N) 0 lant Electric Main FD Bus LI, 3000A GE T 0.6 AMLE lant Electric Utility Cutouts Fail M-4, kv E-Rated * BU E-00E tandard peed *8.86 &C M-4, 00E 6.40 *4.48 Typ 00A FD - Bus ass, V Class RK Bus - End Typ 00A FD - Bus 0 ass, V Class RK Bus 0 - End Typ 00A FD - Bus ass, V Class RK Bus - End Typ 00A FD - Bus 3 ass, V Class RK Bus 3 - End Typ 00A FD - Bus 4 ass, V Class RK Bus 4 - End age of 6

15 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L Typ 00A FD - Bus 5 08 Bus 5 - End 09 ass, V Class RK Typ 00A FD - Bus 6 Bus 6 - End 3 ass, V Class RK Typ 00A FD - Bus 7 6 Bus 7 - End 7 ass, V Class RK Typ 00A FD - Bus 8 0 Bus 8 - End ass, V Class RK Typ 00A FD - Bus 9 4 Bus 9 - End ass, V Class RK Typ 00A FD - Bus 8 Bus - End 9 ass, V Class RK Typ 00A FD - Bus 0 3 Bus 0 - End 33 ass, V Class RK AMLE Typ 00A FD - Bus 36 Bus - End 37 ass, V Class RK Typ 00A FD - Bus 3 40 Bus 3 - End 4 ass, V Class RK Typ 00A FD - Bus 4 44 Bus 4 - End 45 ass, V Class RK Typ 00A FD - Bus 5 48 Bus 5 - End 49 ass, V Class RK Typ 00A FD - Bus 6 5 Bus 6 - End 53 ass, V Class RK Typ 00A FD - Bus 7 ass, V Class RK age 3 of 6

16 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L 56 Bus 7 - End Typ 00A FD - Bus 8 60 Bus 8 - End 6 ass, V Class RK Typ 00A FD - Bus 9 64 Bus 9 - End 65 ass, V Class RK Typ 08V XFMR FD - Bus 68 Bus - End 69 ass, V Class RK Typ 08V XFMR FD - Bus 0 7 Bus 0 - End 73 ass, V Class RK Typ 08V XFMR FD - Bus 76 Bus - End 77 ass, V Class RK Typ 08V XFMR FD - Bus 3 0 Bus 3 - End ass, V Class RK Typ 08V XFMR FD - Bus 4 4 Bus 4 - End 5 ass, V Class RK Typ 08V XFMR FD - Bus 5 8 Bus 5 - End 9 ass, V Class RK Typ 08V XFMR FD - Bus 6 9 Bus 6 - End 93 ass, V Class RK Typ 08V XFMR FD - Bus 7 96 Bus 7 - End 97 ass, V Class RK Typ 08V XFMR FD - Bus 8 00 Bus 8 - End 0 ass, V Class RK Typ 08V XFMR FD - Bus 9 04 Bus 9 - End 05 ass, V Class RK AMLE age 4 of 6

17 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L 07 Typ 40V XFMR FD - Bus 08 Bus - End 09 ass, V Class RK Typ 40V XFMR FD - Bus 0 Bus 0 - End 3 ass, V Class RK Typ 40V XFMR FD - Bus 6 Bus - End 7 ass, V Class RK Typ 40V XFMR FD - Bus 3 0 Bus 3 - End ass, V Class RK Typ 40V XFMR FD - Bus 4 4 Bus 4 - End ass, V Class RK Typ 40V XFMR FD - Bus 5 8 Bus 5 - End 9 ass, V Class RK Typ 40V XFMR FD - Bus 6 3 Bus 6 - End 33 ass, V Class RK Typ 40V XFMR FD - Bus 7 36 Bus 7 - End 37 ass, V Class RK AMLE Typ 40V XFMR FD - Bus 8 40 Bus 8 - End 4 ass, V Class RK Typ 40V XFMR FD - Bus 9 44 Bus 9 - End 45 ass, V Class RK Typ 30A FD - Bus 48 Bus - End 49 ass, V Class RK Typ 30A FD - Bus 0 Bus 0 - End 3 ass, V Class RK Typ 30A FD - Bus 6 Bus - End 7 ass, V Class RK age 5 of 6

18 October 3, 07 Equipment Evaluation Report A B C D E F G Device/Bus tatus Description Voltage (V) Continuous Amps INT ka Rating% Manufacturer Bus/Device LF/Dev/Rating% Calc/Dev/eries Volt/INT/C-L 8 9 Typ 30A FD - Bus 3 60 Bus 3 - End 6 ass, V Class RK Typ 30A FD - Bus 4 64 Bus 4 - End 65 ass, V Class RK Typ 30A FD - Bus 5 68 Bus 5 - End 69 ass, V Class RK Typ 30A FD - Bus 6 7 Bus 6 - End 73 ass, V Class RK Typ 30A FD - Bus 7 76 Bus 7 - End 77 ass, V Class RK Typ 30A FD - Bus 8 80 Bus 8 - End 8 ass, V Class RK Typ 30A FD - Bus 9 84 Bus 9 - End 85 ass, V Class RK Typical LL anel Branch CB 88 Comp. Room - Typ A/50A Bus 89 GE Fail TED (E-00 Line) 5-00A, -3 ole TED 5 * * AMLE 9 9 (*N) ystem X/R higher than Test X/R, Calc INT ka modified based on low voltage factor. 93 (*Calc INT ka) Device did not pass. Device is either Marginal (90%) or Failed (00%) of the device library interrupting rating. 94 (*Calc C-L ka) Device did not pass. Device is either Marginal (90%) or Failed (00%) of the device library close-latch / momentary rating. age 6 of 6

19 40 cal/cm E Min. Arc Rating cal/cm E Min. Arc Rating 8 4 cal/cm E Min. Arc Rating Head Body 40Rating Arc cal/cm Rated long sleeve hirt & Rated ants or Rated Coverall M A Rating Arc cal/cm or Hands Rated Arc Flash uit Heavy Duty Leather Gloves Rated Gloves or or Feet Rubber Insulating Gloves with Leather rotectors Leather Work hoes st ices e B ct a r Rated Undergarments DI/EH Work hoes Rated Hard Hat Liner Rated Jacket, arka, or Rainwear Required by NFA 70E Required, Choices Available As Needed Recommended Best ractice sure correct e b to k ave c e h C you h d e t a R c r A Are You rotected? Rated Face hield E L or Hard Hat afety Glasses/Goggles Hearing rotection for Exposure up to: E Min. Arc Rating Rated Face hield with Rated Balaclava Rated Flash Hood Best ractices cal/cm ersonal rotective E quipment for cal/cm. or Eye and Hearing rotection Long sleeve hirt Long ants Undergarments ALL Clothing Made of Nonmelting or Untreated Natural Fiber Heavy Duty Leather Gloves EH Leather Work hoes Dielectric hoes Working under powerlines High step-potential risk Wet conditions Taking the Flash Out of Electrical afety the task (50) com v50 05 Management, LLC.

20 Eversource - Compressor Room ystemnominalvoltage V C Contribution Amps Compressor Room Utility Cutout &C Model M-4, 00E Voltage V Interrupt Rating 9.4 ka ettings 00 Amps CBL-006 () /0 AWG ft Installation Direct Buried Ampacity 88.3 A XFMR - Compressor Room Nominal kva kva ri RatedVoltage 860 V ec RatedVoltage V Z% % Ampacity 58. A Ampacity ec A CBL-007 (6) 500 AWG.0 ft Ampacity 80.0 A Compressor Room Main FD Bus Isc A AF_TripTime.000 s AF_IncidentEnergy.3 Cal/cm^ AF_E Category Dangerous! AF_Boundary inches AF_ArcingFault.97 ka 3 Labels Compressor Room Main FD GOULD HAWMUT Model A4BY Rated Current A Trip A Compressor Room Main W GE Model T Rated Current A Interrupt Rating 00.0 ka Trip A lug 0.0 A CBL-00 () 3000 AWG 0.0 ft Installation andwich Ampacity A lant Elec - Bus GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-00 () 4/0 AWG 00.0 ft Ampacity 50.0 A Bus - Begin Isc A AF_IncidentEnergy.3 Cal/cm^ AF_E Category AF_Boundary 9.05 inches AF_ArcingFault 5.7 ka CBL-006 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus - End Isc A AF_IncidentEnergy 0.8 Cal/cm^ AF_Boundary 4. inches AF_ArcingFault ka NOTE #3: DANGEROU!! VERY HIGH INCIDENT ENERGY Operation of the Compressor Room Main Fused Disconnect is Dangerous; >40 calories/cm. The DANGEROU Level may be mitigated by increasing the working distance from " to 38". This increase in working distance would reduce the Incident Energy from cal/cm to 37 cal/cm and enable the use of AF E Level 4 for operation of the Compressor Room Main Fused Disconnect. The AFB remains the same in either case. NOTE #: DANGEROU!! VERY HIGH INCIDENT ENERGY Operation of protective devices on the Compressor Room Main Bus is Dangerous; >40 calories/cm. The DANGEROU Level may be mitigated by increasing the working distance from " to 38". This increase in working distance would reduce the Incident Energy from cal/cm to 37 cal/cm and enable the use of AF E Level 4 for operation of protective devices on the Compressor Room Main Bus. The AFB remains the same in either case. Compressor Room Main Bus lant Elec - Bus GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-003 () 4/0 AWG 50.0 ft Ampacity 50.0 A Bus - Begin Isc A AF_IncidentEnergy.56 Cal/cm^ AF_E Category AF_Boundary.4 inches AF_ArcingFault 7.89 ka CBL-004 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus - End Isc A AF_IncidentEnergy 0.89 Cal/cm^ AF_Boundary 5.03 inches AF_ArcingFault ka lant Elec - Bus 3 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-00 () 4/0 AWG 00.0 ft Ampacity 50.0 A Bus 3 - Begin Isc A AF_IncidentEnergy.3 Cal/cm^ AF_E Category AF_Boundary 9.05 inches AF_ArcingFault 5.7 ka CBL-00 () 400 AWG 50.0 ft Installation andwich Ampacity A Bus 3 - End Isc A AF_IncidentEnergy 0.86 Cal/cm^ AF_Boundary 4.69 inches AF_ArcingFault 0.88 ka CORORATION CAT ubsidary CORORATION lant Elec - Bus 4 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-009 () 4/0 AWG 30.0 ft Ampacity 50.0 A Bus 4 - Begin Isc A AF_Boundary inches AF_ArcingFault 4.0 ka CBL-000 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus 4 - End Isc A AF_IncidentEnergy 0.75 Cal/cm^ AF_Boundary 3.6 inches AF_ArcingFault 9.60 ka omeplace, T lant Elec - Bus 5 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-009 () 4/0 AWG 70.0 ft Ampacity 50.0 A Bus 5 - Begin Isc A AF_IncidentEnergy.07 Cal/cm^ AF_Boundary 6.8 inches AF_ArcingFault.66 ka CBL-0030 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus 5 - End Isc A AF_IncidentEnergy 0.66 Cal/cm^ AF_Boundary.58 inches AF_ArcingFault 8.37 ka Compressor Room Main Bus lant Elec - Bus 6 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-007 () 4/0 AWG 0.0 ft Ampacity 50.0 A Bus 6 - Begin Isc A AF_IncidentEnergy 0.96 Cal/cm^ AF_Boundary 5.78 inches AF_ArcingFault.47 ka CBL-008 () 400 AWG 90.0 ft Installation andwich Ampacity A Bus 6 - End Isc A AF_IncidentEnergy 0.78 Cal/cm^ AF_Boundary 3.87 inches AF_ArcingFault 9.43 ka lant Elec - Bus 7 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-004 () 4/0 AWG 30.0 ft Ampacity 50.0 A Bus 7 - Begin Isc A AF_IncidentEnergy 0.9 Cal/cm^ AF_Boundary 5.6 inches AF_ArcingFault ka CBL-005 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus 7 - End Isc A AF_IncidentEnergy 0.6 Cal/cm^ AF_Boundary.79 inches AF_ArcingFault ka Comp. Room - Compressor CB GE Model FLA Rated Current 0.0 A Trip 0.0 A lug 0.0 A ettings CBL-003 () 0 AWG 40.0 ft Ampacity 90.0 A R Compressors Isc A AF_IncidentEnergy.43 Cal/cm^ AF_E Category AF_Boundary 0.08 inches AF_ArcingFault 6.54 ka 6 Labels Typical Compressor Motor Rated H 75.0 hp RatedVoltage V RatedAmps 90.5 A - R Compressor # - R Compressor # - New IR Compressor Typical XFMR off LL anel ri RatedVoltage V ec RatedVoltage 08 V Z% % Ampacity ec 83.3 A CBL-0034 () AWG 50.0 ft Labels - LL anel MLO - LL anel MLO - LL3 anel MLO - LL5 anel MLO - New Addition anel MLO - Assorted pares and other similar LL panels fed from Compressor Room Main 30 Labels lant Elec - Bus 8 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-00 () 4/0 AWG 30.0 ft Ampacity 50.0 A Bus 8 - Begin Isc A AF_IncidentEnergy 0.9 Cal/cm^ AF_Boundary 5.6 inches AF_ArcingFault ka CBL-003 () 400 AWG 05.0 ft Installation andwich Ampacity A Bus 8 - End Isc A AF_IncidentEnergy 0.7 Cal/cm^ AF_Boundary 3.9 inches AF_ArcingFault ka Comp. Room - Typ A/50A CB GE Model FLA Rated Current 0.0 A Trip 50.0 A lug 0.0 A ettings CBL-003 () /0 AWG 50.0 ft Ampacity 95.0 A Comp. Room - Typ A/50A Bus Isc A AF_Boundary.0 inches AF_ArcingFault ka Typical LL anel Branch CB GE Model TED Rated Current 50.0 A Interrupt Rating 4.0 ka Trip 50.0 A lug 0.0 A ettings Fixed CBL-0033 () 6 AWG 0.0 ft Typical LL anel Field Device Isc A AF_TripTime 0.0 s AF_IncidentEnergy 0.66 Cal/cm^ AF_Boundary.5 inches AF_ArcingFault ka - LL anel Field Devices - LL anel Field Devices - LL3 anel Field Devices - LL5 anel Field Devices - New Addition anel Field Devices and similar panels or field devices Labels - CU -0 - Air Dryers - Assorted pares and other similar loads fed from Compressor Room Main lant Electric Room Main Bus - MD- lant Elec - Bus 9 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-000 () 4/0 AWG 0.0 ft Ampacity 50.0 A Bus 9 - Begin Isc A AF_IncidentEnergy 0.86 Cal/cm^ AF_Boundary 4.75 inches AF_ArcingFault ka CBL-00 () 400 AWG 0.0 ft Installation andwich Ampacity A Bus 9 - End Isc 3. A AF_IncidentEnergy 0.58 Cal/cm^ AF_Boundary.58 inches AF_ArcingFault 7.76 ka Comp. Room - Typ 30A/80A CB GE Model ELA Rated Current 80.0 A Trip 80.0 A lug 0.0 A ettings CBL-0035 () AWG 50.0 ft Comp. Room - Typ 30A/80A Bus Isc A AF_IncidentEnergy 0.93 Cal/cm^ AF_Boundary 5.49 inches AF_ArcingFault.57 ka Compressor Room Main Bus 6 Labels NOTE #: DANGEROU!! VERY HIGH INCIDENT ENERGY Operation of the lant Electric Room Main Fused Disconnect is Dangerous; >40 calories/cm. The DANGEROU Level may be mitigated by increasing the working distance from " to 38". This increase in working distance would reduce the Incident Energy from 8 cal/cm to 37 cal/cm and enable the use of AF E Level 4 for operation of the lant Electric Room Main Fused Disconnect. The AFB remains the same in either case. Isc A AF_TripTime.000 s AF_IncidentEnergy 4.79 Cal/cm^ AF_E Category Dangerous! AF_Boundary inches AF_ArcingFault.6 ka NOTE #: DANGEROU!! VERY HIGH INCIDENT ENERGY Operation of protective devices on the lant Electric Room Main Bus is Dangerous; >40 calories/cm. The DANGEROU Level may be mitigated by increasing the working distance from " to 38". This increase in working distance would reduce the Incident Energy from 8 cal/cm to 38 cal/cm and enable the use of AF E Level 4 for operation of protective devices on the lant Electric Room Main Bus. The AFB remains the same in either case. lant Elec - Bus 0 GE Model GLA Rated Current A Trip A lug 0.0 A ettings CBL-0008 () 4/0 AWG 0.0 ft Ampacity 50.0 A Bus 0 - Begin Isc A AF_IncidentEnergy.67 Cal/cm^ AF_E Category AF_Boundary. inches AF_ArcingFault 9.35 ka CBL-0009 () 400 AWG 60.0 ft Installation andwich Ampacity A Bus 0 - End Isc A AF_IncidentEnergy.33 Cal/cm^ AF_E Category AF_Boundary 9. inches AF_ArcingFault ka Furnace 70 Furnance 70 XFMR Nominal kva 50.0 kva ri RatedVoltage V ec RatedVoltage 40 V Z%.0000 % Ampacity 0.4 A Ampacity ec A CBL-0006 () 4/0 AWG 0.0 ft Ampacity 50.0 A Furnance 70 Heater Voltage 40.0 V Isc A AF_TripTime.000 s AF_IncidentEnergy 3.57 Cal/cm^ AF_E Category 4 AF_Boundary inches AF_ArcingFault 5.35 ka Labels lant Elec - Furnace 70 CB GE Model GLA Rated Current.0 A Trip A lug 0.0 A ettings CBL-0004 () 350 AWG 40.0 ft Ampacity A Furnace 70 Bus Isc A AF_IncidentEnergy Cal/cm^ AF_Boundary 6.4 inches AF_ArcingFault.873 ka Furnance 70 Drive Rated H.0 hp RatedVoltage V RatedAmps 50.8 A lant Electric Main FD Bus lant Electric Room Main FD GOULD HAWMUT Model A4BY Rated Current A Trip A lant Electric Room Main W GE Model T Rated Current A Interrupt Rating 00.0 ka Trip A lug 0.0 A CBL-000 () 3000 AWG 0.0 ft Installation andwich Ampacity A Labels 3 Labels lant Electric Room Main Bus - MD- Furnace 70 lant Electric Main FD Bus Isc A AF_TripTime.838 s AF_IncidentEnergy 7.67 Cal/cm^ AF_E Category Dangerous! AF_Boundary 30.3 inches AF_ArcingFault 0.56 ka lant Elec - Furnace 70 CB GE Model GLA Rated Current.0 A Trip A lug 0.0 A ettings CBL-0005 () 350 AWG 30.0 ft Ampacity A Furnace 70 Bus Isc A AF_IncidentEnergy 0.87 Cal/cm^ AF_Boundary 4.85 inches AF_ArcingFault ka Furnance 70 XFMR Nominal kva 50.0 kva ri RatedVoltage V ec RatedVoltage 40 V Labels Z%.0000 % Labels AMLE Ampacity 0.4 A Ampacity ec A CBL-0007 () 4/0 AWG 0.0 ft Ampacity 50.0 A Furnance 70 Heater Voltage 40.0 V Isc A AF_TripTime.000 s AF_IncidentEnergy 3.34 Cal/cm^ AF_E Category 4 AF_Boundary 3.78 inches AF_ArcingFault ka Furnance 70 Drive Rated H.0 hp RatedVoltage V RatedAmps 50.8 A Eversource - lant Electric ystemnominalvoltage V C Contribution Amps lant Electric Utility Cutouts &C Model M-4, 00E Voltage V Interrupt Rating 9.4 ka ettings 00 Amps CBL-0003 () /0 AWG ft Installation Direct Buried Ampacity 88.3 A XFMR - lant Electric Room Nominal kva kva ri RatedVoltage 860 V ec RatedVoltage V Z% % Ampacity 58. A Ampacity ec A CBL-000 (6) 500 AWG.0 ft Ampacity 80.0 A lant Electric Room Main Bus Isc A AF_TripTime.856 s AF_IncidentEnergy 8.4 Cal/cm^ AF_E Category Dangerous! AF_Boundary 3. inches AF_ArcingFault ka 3 Labels Typ anels & Field Devices Voltage 08.0 V Isc A AF_TripTime.834 s AF_Boundary.04 inches AF_ArcingFault.99 ka 0 Labels - anel MLO - 0 anel MLO and similar panels or field devices CORORATION - omeplace, T Arc Flash tudy - Model Drawing - Louisville, KY J. D. Aeiker October 3, 07 Rev. 0

21 Typ 08V XFMR FD - Bus CBL-0050 Typ 08V XFMR - Bus ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.7 ka Typical for all 08V anels than KVA Typ 08V XFMR FD - Bus 3 CBL-0060 Typ 08V XFMR - Bus 3 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 3 Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.74 ka Typical for all 08V anels than KVA Typ 08V XFMR FD - Bus 6 CBL-0075 Typ 08V XFMR - Bus 6 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 6 Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.7 ka Typical for all 08V anels than KVA Typ 08V XFMR FD - Bus 9 CBL-0090 Typ 08V XFMR - Bus 9 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 9 Voltage 08.0 V Isc A AF_TripTime 0.49 s AF_Boundary.04 inches AF_ArcingFault.58 ka Bus Bus 3 Bus 6 Bus 9 Typ 40V XFMR FD - Bus Rated Current 45.0 A CBL-0049 Typ 40V XFMR - Bus ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus Voltage 40.0 V Isc A AF_TripTime 0.86 s AF_Boundary.04 inches AF_ArcingFault 0.9 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 3 CBL-0059 Typ 40V XFMR - Bus 3 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 3 Voltage 40.0 V Isc A AF_TripTime 0.85 s AF_Boundary.04 inches AF_ArcingFault 0.94 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 6 CBL-0074 Typ 40V XFMR - Bus 6 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 6 Voltage 40.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault 0.9 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 9 CBL-0089 Typ 40V XFMR - Bus 9 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 9 Voltage 40.0 V Isc A AF_TripTime 0.93 s AF_Boundary.04 inches AF_ArcingFault 0.90 ka Typ 30A FD - Bus Rated Current 30.0 A Trip 30.0 A CBL-0048 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.53 inches AF_ArcingFault ka 5A to 60A Typ 30A FD - Bus 3 Trip 30.0 A CBL-0058 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 3 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.56 inches AF_ArcingFault 3.84 ka 5A to 60A Typ 30A FD - Bus 6 Trip 30.0 A CBL-0073 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 6 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.5 inches AF_ArcingFault ka 5A to 60A Typ 30A FD - Bus 9 Trip 30.0 A CBL-0088 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 9 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.04 Cal/cm^ AF_Boundary.36 inches AF_ArcingFault ka 5A to 60A Bus Typ 00A FD - Bus CBL-0047 () AWG 50.0 ft Typ 00A Load - Bus Isc A AF_TripTime 4 s AF_IncidentEnergy 0.09 Cal/cm^ AF_Boundary 3.76 inches AF_ArcingFault 6.88 ka 70A to A Bus 3 Typ 00A FD - Bus 3 CBL-0057 () AWG 50.0 ft Typ 00A Load - Bus 3 Isc A AF_TripTime 4 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 3.87 inches AF_ArcingFault 7.7 ka 70A to A Bus 6 Typ 00A FD - Bus 6 CBL-007 () AWG 50.0 ft Typ 00A Load - Bus 6 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.09 Cal/cm^ AF_Boundary 3.7 inches AF_ArcingFault ka 70A to A Bus 9 Typ 00A FD - Bus 9 CBL-0087 () AWG 50.0 ft Typ 00A Load - Bus 9 Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 4.48 inches AF_ArcingFault 4.68 ka 70A to A Typ 00A FD - Bus Rated Current 00.0 A Trip 00.0 A CBL-0046 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 6.45 inches AF_ArcingFault 8.6 ka 50A to 400A Typ 00A FD - Bus 3 Trip 00.0 A CBL-0056 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 3 Isc A AF_TripTime 8 s AF_IncidentEnergy 0.3 Cal/cm^ AF_Boundary 6.68 inches AF_ArcingFault ka 50A to 400A Typ 00A FD - Bus 6 Trip 00.0 A CBL-007 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 6 Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 6.36 inches AF_ArcingFault 7.98 ka 50A to 400A Typ 00A FD - Bus 9 Trip 00.0 A CBL-0086 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 9 Isc A AF_TripTime 8 s AF_IncidentEnergy 0.7 Cal/cm^ AF_Boundary 5.46 inches AF_ArcingFault 6.33 ka 50A to 400A Bus - End Isc A AF_IncidentEnergy 0.8 Cal/cm^ AF_Boundary 4. inches AF_ArcingFault ka Bus 3 - End Isc A AF_IncidentEnergy 0.86 Cal/cm^ AF_Boundary 4.69 inches AF_ArcingFault 0.88 ka Bus 6 - End Isc A AF_IncidentEnergy 0.78 Cal/cm^ AF_Boundary 3.87 inches AF_ArcingFault 9.43 ka Bus 9 - End Typ 08V XFMR FD - Bus 4 CBL-0065 Typ 08V XFMR - Bus 4 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 4 Typical for all 08V anels than KVA Typical for all 08V anels than KVA CORORATION UBIDARYCORORATION Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.70 ka Typ 08V XFMR FD - Bus 7 CBL-0080 Typ 08V XFMR - Bus 7 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 7 Voltage 08.0 V Isc 3 5. A AF_TripTime 7 s AF_Boundary.04 inches AF_ArcingFault.60 ka Typ 08V XFMR FD - Bus 0 CBL-0095 Typ 08V XFMR - Bus 0 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 0 Voltage 08.0 V Isc A AF_TripTime 0.46 s AF_Boundary.04 inches AF_ArcingFault.6 ka Bus 4 Bus 7 Bus 0 Typ 40V XFMR FD - Bus 4 CBL-0064 Typ 40V XFMR - Bus 4 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 4 Voltage 40.0 V Isc A AF_TripTime 0.87 s AF_Boundary.04 inches AF_ArcingFault 0.90 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 7 CBL-0079 Typ 40V XFMR - Bus 7 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 7 Voltage 40.0 V Isc A AF_TripTime 0.96 s AF_Boundary.04 inches AF_ArcingFault 0.90 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 0 CBL-0094 Typ 40V XFMR - Bus 0 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 0 Voltage 40.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault 0.94 ka OMELACE, T Typ 30A FD - Bus 4 Trip 30.0 A CBL-0063 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 4 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.5 inches AF_ArcingFault ka 5A to 60A Typ 30A FD - Bus 7 Trip 30.0 A CBL-0078 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 7 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.04 Cal/cm^ AF_Boundary.38 inches AF_ArcingFault 3.40 ka 5A to 60A Typ 30A FD - Bus 0 Trip 30.0 A CBL-0093 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 0 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.75 inches AF_ArcingFault 4. ka 5A to 60A Bus 4 Typ 00A FD - Bus 4 CBL-006 () AWG 50.0 ft Typ 00A Load - Bus 4 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.09 Cal/cm^ AF_Boundary 3.67 inches AF_ArcingFault 6.57 ka 70A to A Bus 7 Typ 00A FD - Bus 7 CBL-0077 () AWG 50.0 ft Typ 00A Load - Bus 7 Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 4.54 inches AF_ArcingFault ka 70A to A Bus 0 Typ 00A FD - Bus 0 CBL-009 () AWG 50.0 ft Typ 00A Load - Bus 0 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.3 Cal/cm^ AF_Boundary 4.6 inches AF_ArcingFault 9.88 ka 70A to A Typ 00A FD - Bus 4 Trip 00.0 A CBL-006 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 4 Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 6.6 inches AF_ArcingFault ka 50A to 400A Typ 00A FD - Bus 7 Trip 00.0 A CBL-0076 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 7 Isc A AF_TripTime 8 s AF_IncidentEnergy 0.7 Cal/cm^ AF_Boundary 5.55 inches AF_ArcingFault ka 50A to 400A Typ 00A FD - Bus 0 Trip 00.0 A CBL-009 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 0 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.7 Cal/cm^ AF_Boundary 5.43 inches AF_ArcingFault.934 ka 50A to 400A Bus 4 - End Isc A AF_IncidentEnergy 0.75 Cal/cm^ AF_Boundary 3.6 inches AF_ArcingFault 9.60 ka Bus 7 - End Isc A AF_IncidentEnergy 0.6 Cal/cm^ AF_Boundary.79 inches AF_ArcingFault ka AMLE Isc 3. A AF_IncidentEnergy 0.58 Cal/cm^ AF_Boundary.58 inches AF_ArcingFault 7.76 ka Bus 0 - End Isc A AF_IncidentEnergy.33 Cal/cm^ AF_E Category AF_Boundary 9. inches AF_ArcingFault ka Typ 08V XFMR FD - Bus CBL-0055 Typ 08V XFMR - Bus ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.75 ka Typical for all 08V anels than KVA Typ 08V XFMR FD - Bus 5 CBL-0070 Typ 08V XFMR - Bus 5 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 5 Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.65 ka Typical for all 08V anels than KVA Typ 08V XFMR FD - Bus 8 CBL-0085 Typ 08V XFMR - Bus 8 ri RatedVoltage V ec RatedVoltage 08 V Ampacity ec 83.3 A Typ 08V anel - Bus 8 Voltage 08.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault.68 ka Typical for all 08V anels than KVA Bus Bus 5 Bus 8 Typ 40V XFMR FD - Bus CBL-0054 Typ 40V XFMR - Bus ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus Voltage 40.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault 0.95 ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 5 CBL-0069 Typ 40V XFMR - Bus 5 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 5 Voltage 40.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault ka Typical for all 40V anels than KVA Typ 40V XFMR FD - Bus 8 CBL-0084 Typ 40V XFMR - Bus 8 ri RatedVoltage V ec RatedVoltage 40 V Ampacity ec 7. A Typ 40V anel - Bus 8 Voltage 40.0 V Isc A AF_TripTime s AF_Boundary.04 inches AF_ArcingFault ka Typical for all 40V anels than KVA Typ 30A FD - Bus Trip 30.0 A CBL-0053 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.59 inches AF_ArcingFault ka 5A to 60A Typ 30A FD - Bus 5 Trip 30.0 A CBL-0068 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 5 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.04 Cal/cm^ AF_Boundary.44 inches AF_ArcingFault 3.58 ka 5A to 60A Typ 30A FD - Bus 8 Trip 30.0 A CBL-0083 () 8 AWG 50.0 ft Ampacity 55.0 A Typ 30A Load - Bus 8 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.05 Cal/cm^ AF_Boundary.47 inches AF_ArcingFault 3.60 ka 5A to 60A Bus Typ 00A FD - Bus CBL-005 () AWG 50.0 ft Typ 00A Load - Bus Isc A AF_TripTime 4 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 3.93 inches AF_ArcingFault ka 70A to A Bus 5 Typ 00A FD - Bus 5 CBL-0067 () AWG 50.0 ft Typ 00A Load - Bus 5 Isc A AF_TripTime 8 s AF_IncidentEnergy 0.3 Cal/cm^ AF_Boundary 4.76 inches AF_ArcingFault 5.34 ka 70A to A Bus 8 Typ 00A FD - Bus 8 CBL-008 () AWG 50.0 ft Typ 00A Load - Bus 8 Isc A AF_TripTime 4 s AF_IncidentEnergy 0.08 Cal/cm^ AF_Boundary 3.58 inches AF_ArcingFault ka 70A to A CORORATION - OMELACE, T Arc Flash tudy - Model Drawing - Bus Ducts - Louisville, KY J. D. Aeiker October 3, 07 Rev. 0 Typ 00A FD - Bus Rated Current 00.0 A Trip 00.0 A CBL-005 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus Isc A AF_TripTime 8 s AF_IncidentEnergy 0.4 Cal/cm^ AF_Boundary 6.8 inches AF_ArcingFault ka 50A to 400A Typ 00A FD - Bus 5 Trip 00.0 A CBL-0066 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 5 Isc A AF_TripTime 8 s AF_IncidentEnergy 0.9 Cal/cm^ AF_Boundary 5.86 inches AF_ArcingFault ka 50A to 400A Typ 00A FD - Bus 8 Trip 00.0 A CBL-008 () 4/0 AWG 50.0 ft Ampacity 60.0 A Typ 00A Load - Bus 8 Isc A AF_TripTime 8 s AF_IncidentEnergy 0. Cal/cm^ AF_Boundary 6. inches AF_ArcingFault 7.49 ka 50A to 400A Bus - End Isc A AF_IncidentEnergy 0.89 Cal/cm^ AF_Boundary 5.03 inches AF_ArcingFault ka Bus 5 - End Isc A AF_IncidentEnergy 0.66 Cal/cm^ AF_Boundary.58 inches AF_ArcingFault 8.37 ka Bus 8 - End Isc A AF_IncidentEnergy 0.7 Cal/cm^ AF_Boundary 3.9 inches AF_ArcingFault ka Typical for all 08V anels than KVA Typical for all 40V anels than KVA Typical for all 08V anels than KVA Typical for all 40V anels than KVA