Attachment_4_-_WEAR_Trip_Report_(1).pdf

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EO14398 ELECTRIC REPAIRS AT SIX ALASKAN N. PARKS
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140P9726Q0046
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This is a technical engineering trip report and arc flash evaluation analysis for electrical systems at federal facilities in Kotzebue, Alaska, operated by the National Park Service. The report documents site visits conducted December 4-6, 2023, to four primary facilities (Northwest Arctic Heritage Center, Automotive Shop, Storage Warehouse, and Maintenance Shop) plus ten additional residential and support buildings, with the objective of evaluating electrical distribution systems for arc flash hazards, identifying code deficiencies, and providing warning labels and calculations for equipment rated above single-phase 240V.

The report identifies multiple code deficiencies across facilities requiring remediation, including missing or illegible panel schedules, violations of dedicated equipment clearance spaces, missing junction box covers, improper neutral wire sharing between circuits, missing AFCI breakers, deficient grounding connections, and non-compliant service disconnect heights. Specific high-risk areas include the Northwest Arctic Heritage Center (requiring main disconnect identification, UPS shunt trip labeling, sprinkler line rerouting, and fire alarm station installation) and the Maintenance Shop (requiring bonding jumper installation, clearance violations, and electrical system cleanup). The accompanying arc flash analysis provides detailed fault contribution calculations, incident energy values, and personal protective equipment requirements for work on energized equipment, with incident energy levels ranging from 0.08 to 137.79 cal/cm² depending on location and protective device specifications. All deficiencies are prioritized as either code-mandated corrections or recommendations for system improvement and safety enhancement.

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670 W. Fireweed Ln, Ste 200 Anchorage, AK (907) 276-0521 l www.rsa-ak.com

Mechanical & Electrical Engineers

October 25, 2024

United States Department of the Interior National Park Service Denver Service Center 12795 W. Alameda Parkway P.O. Box 25287 Denver, CO 80225-0287

ATTENTION: Susan Lehmann

Dear Susan, REFERENCE: NPS Arc Flash Evaluation - WEAR Trip Report

On 12/04/23 through 12/06/23 Jason Gold, with Consolidated Contracting & Engineering, and Caleb Kopp with RSA Engineering travelled to Kotzebue to investigate the electrical distribution systems. The intent of the site visit was to gather enough information on the equipment to provide an accurate arc flash calculation, provide warning labels for the equipment, and determine any code deficiencies in the electrical systems. For any equipment that is single phase and 240V, or less, an arc flash calculation was not required. See one-line diagrams for further information on site electrical systems. The following report will address any code issues we discovered as part of our investigation.

Northwest Arctic Heritage Center:

Figure 1 - Electrical One Line Diagram

The Northwest Arctic Heritage Center electrical service is provided by Kotzebue Electric Association (KEA). The building is served with an exterior utility pad-mounted transformer located adjacent to the building (Image #1). The secondary service, 120/208V, 3-phase, 4-wire, lateral feeds to a NEMA 3R current transformer (CT) cabinet, where a utility meter monitors power usage (Image #2). Due to lack of visible marking, CT cabinet is assumed to be 600A, based on size of connected service disconnect and record drawings for the original construction.

Within the CT enclosure are (3) three power taps. The main tap feeds the 600A 3-Pole building service disconnect. The second tap is for a 400A, 3-Pole, Square D enclosed circuit breaker serving as the service disconnect for the wind powered electric boiler equipment (Image #3). The third CT tap feeds the electric fire pump controller. Both the disconnects have separate enclosures and are building-mounted.

Due to lack of access to the equipment and lack of visible marking on accessible equipment, the electric fire pump controller and the electric fire pump are assumed to be Cutler-Hammer LMR Plus, and 15HP, 208V, 3Ø, respectively, based on archived submittals of the building.

The electric boiler service disconnect feeds a 120/208V, 300A, 3-Pole, Square D breaker as disconnect for the electric boiler (Image #4). Power is tapped from the line-side of the electric boiler disconnect to feed a 100A, 120/208V, 3-Pole, Square D disconnect fused at 100A (Image #5) which serves as the main disconnect for a sub panel, denoted as panel ‘B’. Panel ‘B’ is a 120/208V, 225A, 3Ø, 4W, Square D type NQ panel with main lugs only (Image #6).

The main building service disconnect supplies a 120/208V, 600A, 3Ø, 4W, Square D I-Line main distribution panel (MDP) located inside the building (Image #8). The MDP sub feeds several panels as denoted on the one line (figure - 1). The MDP also feeds a 120/208V, 300A, 3-Pole, Square D Manual Transfer Switch (MTS) (Image #2) through a 300A 3-Pole breaker. The MTS is located on the exterior of the building and is equipped with a portable generator plug-in, although at the time of the site visit no generator was installed. The MTS feeds a 120/208V, 400A, 3Ø, Square D Type NQ panelboard denoted as ‘G’ with main lugs only (Image #9).

Panel ‘G’ subfeeds AHU-1, RF-1, panel ‘G2’ (Image #10), and a 10KVA, 2-Pole UPS which in turn, feeds panel ‘UPS’ (Image #11). The UPS equipment is furnished with shunt trip devices and connected to a remote push button to serve as a disconnect.

Code Deficiencies

1. The main disconnects should be identified as “Main Disconnect 1 of 4”, “Main Disconnect 2 of 4”, etc.

2. The remote shunt trip to disconnect the UPS should be identified as such and mounted adjacent to the building main disconnect.

3. Panel ‘B’ missing a panel schedule. Trace out circuit in panel and provide clear, evident, and distinguishable typed circuit directories for panelboard per NEC section 408.4.

4. There is an existing sprinkler line below 6’-0” above electrical panelboards. Provide new sprinkler line routing or relocate panelboard to ensure NEC dedicated equipment space of 6’-0” is maintained above the panelboards per NEC Section 110.26(E).

5. There were instances of junction boxes with missing covers in the building. Provide new covers for all junction boxes as required per NEC Section 314.25.

6. Missing fire alarm manual pull station at stairs from mechanical room. Provide new pull station and connect to the existing fire alarm system (IBC 907.4.2.1).

Electrical Recommendations

1. Panel ‘R1’ Circuit 28 ‘Utilidor HT’ was tripped at the time of our site visit. Recommend identifying and fixing cause of trip.

2. Panel ‘R1’ has 27 neutrals wires with 32 circuits, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

3. Panel ‘UPS’ has a recessed panel cover, while being a surface-mounted panel.

Recommend providing new surface-mounted cover.

4. Panel ‘HB’ has 7 neutral wires with 19 circuits, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

5. There are multiple instances of emergency lighting units being constantly powered in the lobby, the stairwell to the mechanical room, and the hall near boiler room. Recommend additional site investigation into the wiring connections and the relay/control modules for system failure points. If a solution cannot be found, recommend replacing emergency lighting units with new led type fixture.

Automotive Shop:

The Automotive Shop is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the overhead utility distribution system (Image #12). This weatherhead feeds a NEMA 4X Current Transformer (CT) cabinet and a utility meter. The CT cabinet feeds a 120/208V, 400A, 3-Pole, Square D service disconnect, fused at 300A. The CT cabinet, utility meter, and service disconnect are all mounted on a unistrut rack located on the exterior of the building (Image #13). The service disconnect feeds a 120/208V, 400A, 3-Pole, 4W, Square D panelboard with main lugs only panel ‘A’ inside the Automotive Shop (Image #14). Inside panel 'A', a 90A 3-pole breaker sub feeds another 120/208V, 225A, 3-Pole, 4W, Square D panelboard with main lugs only, panel 'B' (Image #15).

1. There are tools and shelves violating the working clearances of Panel ‘A’ (Image #16).

Remove all foreign systems/material within the working clearances of the panel as required by NEC 110.26.

2. There were instances of junction boxes with missing covers in the building (Image #16).

Provide new covers for all junction boxes as required per NEC Section 314.25.

Electrical Recommendations

1. Panel ‘A’ has 16 neutral wires with 35 circuits, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

2. Service Disconnect has no duct seal in 4” conduit penetration into building. Recommend providing duct seal for conduit.

3. Panel ‘B’ has 13 neutral wires with 19 circuits, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

4. As the electrical service and feeders are not properly identified we feel that new placards should be provided that read.

“Service Disconnect” 120/240V, 3-phase, 4-wire

Storage Warehouse:

The Storage Warehouse is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system (Image #17). The weatherhead feeds power down into a 120/240V, 125A, 2-Pole, 3W, Square D type combination meterbase/disconnect (CMD) with 125A disconnect(Image #18). The CMD feeds a 120/240V,125A, 1Ø, 3W, Square D load center with 100A, 2-Pole main circuit breaker, panel ‘A’ (Image #19). Panel ‘A’ feeds another 120/240V,100A, 1Ø, 3W, Square D load center with main lugs, panel ‘B’ (Image #20) through a 50A 2-Pole breaker.

No code deficiencies noted for this building.

Electrical Recommendations

1. Panel ‘A’ is in poor condition with rust and degradation visible (Image #19). Recommend replacing panelboard with new panelboard in existing location, re-using existing branch circuit, and re-terminating existing branch circuits and feeders.

2. Panel ‘B’ is in poor condition with rust and degradation visible (Image #20). Recommend replacing panelboard with new panelboard in existing location, re-using existing branch circuit, and re-terminating existing branch circuits and feeders.

3. Panel ‘A’ schedule is barely legible. Recommend tracing out circuit in panel and provide clear and distinguishable typed circuit directories for panelboard.

4. Panel ‘B’ schedule is barely legible. Recommend tracing out circuit in panel and provide clear and distinguishable typed circuit directories for panelboard.

5. As the electrical service and feeders are not properly identified we feel that new placards should be provided that reads.

120/240V, 1-phase, 3-wire

Maintenance Shop:

The Maintenance Shop is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system (Image #21). The weatherhead feeds down to a meter base, which feeds an exterior 120/208V, 200A, 3-Pole, Cutler Hammer knife switch service disconnect fused at 200A (Image #22). The service feeds a 120/208V, 225A, 3Ø, 4W, Cutler Hammer main lug load center, panel ‘A’ within in the building.

Code Deficiencies

1. Panel ‘A’s cover has open spaces missing blank covers (Image #24). Provide panelboard blanks on unused openings per NEC section 408.7.

2. Neutrals spliced method is unclear (Image #23). Ensure appropriate splicing method such as wire nuts or push-fit connectors per NEC section 110.14.

3. There are instances of light fixtures in the wood shop without proper supports. Ensure all fixtures are securely supported per NEC section 410.30(A).

4. There are instances of disconnected speakers in the wood shop with exposed wires (Image #25). Ensure all disconnected speakers are stored away and all exposed wires are properly terminated or demolished per NEC section 640.4.

5. There were instances of junction boxes with missing covers in the wood shop (Image #26).

Provide new covers for all junction boxes as required per NEC Section 314.25.

6. Neutral and ground are not bonded at service disconnect (Image #27). Provide a #2 AWG Cu main bonding jumper to connect the neutral and ground bus at service disconnect per NEC section 250.28.

1. Panel has a recessed panel cover, while being a surface-mounted panel. Recommend providing new surface-mounted cover.

2. Wires for old equipment unterminated in panel (Image #23). Recommend removing old conductors and conduit.

3. Remnants of previous boiler fire are not cleaned up (Image #28). Recommend verifying integrity of old equipment and cleaning surrounding area and replacing as necessary.

4. Broken lenses on light fixtures in wood shop (Image #25). Recommend replacing light fixtures with broken lenses per NEC.

5. There are instances of light fixtures with broken lenses (Image #25). Recommend replacing lens.

Bunkhouse:

The Bunkhouse electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system (Image #29). The service conductors route down the weatherhead to 120/240V, 125A, 2-Pole, 3W, Square D CMD with 125A disconnect (Image #30). The CMD feeds into the interior of the building to 120/240V, 125A, 1Ø, 3W, Square D type load center with main lugs only, panel ‘A’ (Image #31). Rating is assumed due to lack of any legible markings.

1. Panel schedule is not legible. Trace out circuit in panel and provide clear and distinguishable typed circuit directories for panelboard per NEC section 408.4.

2. A couch is in the NEC working clearance of the panelboard. Move the couch out of the NEC working clearance per NEC Section 110.26.

3. Conductors are undersized for the ampacity of the service per NEC section 210.19.

Replace existing 125A breaker with New 100A 2-Pole breaker for service disconnect.

4. GCFI receptacle in bathroom is missing faceplate. Provide receptacle faceplate per NEC section 406.6.

5. There are instances of broken receptacles within this building. Replace all broken receptacles per NEC 110.12(B).

1. As the electrical service and feeders are not properly identified we feel that new placards should be provided that reads.

“Service Disconnect”

120/240V, 1-phase, 3-wire

Annex Visitor Info Center 154A:

The Annex Visitor Center 154A electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system (Image #32). The weatherhead feeds down into a 120/240V, 200A, 2-Pole, 3W, Square D (CMD) with a 200A disconnect (Image #33). The CMD feeds into the interior of the building to a 120/240V, 200A, 1Ø, 3W, Square D load center with main lugs only, panel ‘A’ (Image #34).

1. Exit signs at front entry and weight room do not have power. Investigate to identify failure point, and fix or provide a new fully illuminated exit sign per IBC – 1013.3

2. Unit heater in back room missing cover for electrical connection box. Provide a new cover for unit heater’s electrical connection per NEC 110.27.

1. Panelboard circuit number and number of neutrals do not match, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

2. Light fixtures in front room missing lenses. Recommend replacing light fixtures with new LED type or replacing lenses.

3. As the electrical service and feeders are not properly identified we feel that new placards should be provided that read.

Corner House 154B:

The Corner House 154B electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system. The weatherhead feeds down into a 120/240V, 200A, 2-Pole, 3W, Siemens (CMD) with a 200A disconnect (Image #35). The CMD feeds into the interior of the building to a 120/240V, 200A, 1Ø, 3W, Square D load center with main lugs only, panel ‘A’ (Image #36).

No code deficiencies noted for this building.

1. As the electrical service and feeders are not properly identified we feel that the new placards should be provided That reads.

Duplex 154 C + D:

The Duplex 154 electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system. The weatherhead feeds down to a 120/240V, 200A, 2-Pole, 3W, Square D (CMD) with (2) 100A, 2-Pole disconnects (Image #37). The CMD feeds two 120/240V, 125A, 1Ø, 3W, Square D load centers in building 154 units C and D via the two 100A 2-Pole service disconnects, respectively. The load centers in building 154 units C and D will be denoted as panel ‘C’ (Image #38) and panel ‘D’ (Image #39).

1. CMD breaker is located approximately 7’ above ground. Relocate the service disconnect or provide a working platform such that the highest disconnect position is no greater than

6’-7” Above Finished Grade (AFG) per NEC section 240.24.

No recommendations for this building.

Duplex 152 A + B:

The Duplex 152 electrical system is served via a pole-mounted transformer feed to a building-mounted weatherhead, from the utility overhead distribution system (Image #40). The weatherhead feeds down the siding of the building to power a 120/240V, 200A, 2-Pole, 3W, Siemens CMD with (2) 100A, 2-Pole disconnects (Image #41). Each disconnect feeds a 120/240V, 100A, 1Ø, 3W Siemens load center with main lugs only, denoted as panels ‘A’ and ‘B’ (Images #42,43).

No code deficiencies for this building.

1. As the electrical service and feeders are not properly identified we feel that new placards should be provided that read.

4-Plex 153 A,B,C,D,E:

The 4-Plex’s electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system. Weatherhead then feeds down into a 120/240V, 600A, 2-Pole, 3W, Square D Meter-Pak CMD (Image #44). The feeder within the weatherhead is (2)3#2/0 which is rated for 350A. As this is part of the service laterals and is not less than the utility feeder then there is no need to upgrade unless the utility upgrades their laterals. The Meter-Pak houses five meterbases, and five service disconnects in total. All service disconnects were locked during this site visit except for one 125A, 2-Pole service disconnect feeding to a 120/240V, 125A, 1Ø, 3W, Siemens load center, panel ‘E’ (Image #49) located in the boiler room. The four remaining service disconnects feed 120/240V, 125A, 1Ø, 3W, Siemens load centers denoted panel ‘A’, ‘B’, ‘C’, and ‘D’ (Images #45,46,47,48) all located within their respective unit.

1. Exterior receptacle adjacent to boiler room door is not weatherproof and is not GFCI protected. Replace exterior receptacle with new GFCI type per NEC section 210.8(B) and provide new weatherproof enclosure per NEC section 406.9(A).

2. Smoke alarm has been removed in mechanical room. If the area of the interior floor exceeds 1000ft2, ensure all points on the ceiling have a smoke alarm within 30 ft or have an equivalent of one smoke alarm per 500ft2 of floor area. If not, provide a new smoke detector in location of removed smoke alarm per NFPA Section 29.8.

3. Junction box cover is missing in mechanical room. Provide new cover per NEC Section

314.25 (Image #50).

4. Panel ‘E’ circuit labeled “Heat trace water” was tripped at the time of our site visit. Further site investigating is required to identify and address cause of trip per NEC 110.7.

Electrical Recommendations

1. Panel ‘E’ has 18 circuits and 13 neutrals, which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be “grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together or dedicated neutrals be provided.

2. Panel ‘E’ is recessed style while being surface-mounted. Recommend providing new surface-mounted cover.

3. 12-3 Romex cable in units missing neutrals for individual circuits. Which leads us to believe neutrals are being shared between circuits. Note that this may have not been a code requirement when the equipment was installed and therefore could be

“grandfathered” but does not meet the current NEC minimum requirements. Recommend that all circuits with shared neutral are handle-tied together.

4. Panels ‘A’, ‘B’, ‘C’, & ‘D’ do not have Arc Fault Interrupting Circuits (AFCI). Provide new

AFCI breakers for all panels and provide dual AFCI/GFCI breakers for circuits that currently have GFCI breakers per NEC 210.12. This was likely not a code requirement at the time of installation but is now.

Duplex 297 C + B:

The Duplex 297 electrical system is served via a pole-mounted transformer fed to a building-mounted weatherhead, from the utility overhead distribution system. The Weatherhead feeds a CMD with (3) 125A disconnects (Image #51). One disconnect feeds a 120/240V, 200A, 1Ø, 3W load center with main lugs only, panel ‘A’ (Image #52). Another disconnect feeds a 120/240V, 125A, 1Ø, 3W load center with main lugs only, panel ‘B’ (Image #53). The last disconnect feeds a 120/240V, 125A, 1Ø, 3W load center with main lugs only, panel ‘C’ (Image #54).

1. Panel ‘A’ has Arc Fault Circuit Interrupting (AFCI) breakers for circuits 5/6 but requires

AFCI circuits for 1,2,3,4,5,6,7,9,10,12,14,17,18,20, and 22 as identified on panelboard.

Provide AFCI breakers for all required circuits. This was likely not a code requirement at the time of installation but is now.

2. Panel ‘C’ has Arc Fault Circuit Interrupting (AFCI) breakers for circuits 5/6 but requires AFCI circuits for 1,2,3,4,5,6,7,9,10,11,12,13,14,16, and 20 as identified on panelboard.

Provide AFCI breakers for all required circuits. This was likely not a code requirement at the time of installation but is now.

1. Mechanical equipment appears to be in poor condition. Recommend further investigation towards integrity of mechanical equipment and replacing if necessary (Image #55).

Image #1 – Northwest Arctic Heritage Center –

Utility Pad-Mounted Transformer Image #2 – Northwest Arctic Heritage Center –

Building Mounted Utility Meter, CT Cabinet, Image #3 – Northwest Arctic Heritage Center –

Building Mounted 400A 3-Pole Enclosed Circuit Breaker

Image #4 – Northwest Arctic Heritage Center – Interior 300A 3-Pole Electric Boiler Disconnect

Image #5 – Northwest Arctic Heritage

Center – Interior 3-Pole Panel ‘B’ Fused Disconnect

Image #6 – Northwest Arctic Heritage Center – Panel ‘B’

Image #7 – Northwest Arctic Heritage

Center – KEA Wind Power Panel Image #8 – Northwest Arctic Heritage Center –

Panel ‘MDP’

Image #9 – Northwest Arctic Heritage

Center – Panel ‘G’ Image #10 – Northwest Arctic Heritage Center

– Panel ‘G2’

Image #11 – Northwest Arctic Heritage

Center – Panel ‘UPS’ Image #12 – Automotive Shop – 4”

Weatherhead

Image #13 – Automotive Shop – CT Cabinet, Remote Utility Meter, and Service Disconnect

Image #14 – Automotive Shop – Panel ‘A’

Image #15 – Automotive Shop – Panel ‘B’ Image #16 – Automotive Shop – Panel ‘A’

Working Area

Image #17 – Storage Warehouse -

Image #18 – Storage Warehouse – CMD

Image #19 – Storage Warehouse – Panel ‘A’ Image #20 – Storage Warehouse – Panel ‘B’

Image #21 – Maintenance Shop -

Image #22 – Maintenance Shop – Remote

Meterbase & Service Disconnect

Image #23 – Maintenance Shop – Panel ‘A’ Image #24 – Maintenance Shop – Panel ‘A’

With Cover

Image #25 – Maintenance Shop – Wood Shop Lights

Image #26 – Maintenance Shop – Wood Shop Junction Box

Image #27 – Maintenance Shop – Service Disconnect

Image #28 – Maintenance Shop – Boiler Fire Remnants

Image #29 – Bunkhouse - Weatherhead Image #30 – Bunkhouse – CMD

Image #31 – Bunkhouse – Panel ‘A’ Image #32 – Annex Visitor Info Center 154A -

Image #33 – Annex Visitor Info Center 154A –

CMD

Image #34 – Annex Visitor Info Center 154A –

Panel ‘A’

Image #35 – Corner House 154B – CMD Image #36 – Corner House 154B – Panel ‘A’

Image #37 – Duplex 154 C + D – CMD Image #38 – Duplex 154 C + D – Panel ‘C’

Image #39 – Duplex 154 C + D – Panel ‘D’ Image #40 – Duplex 152 A + B - Weatherhead

Image #41 – Duplex 152 A + B – CMD Image #42 – Duplex 152 A + B – Panel ‘A’

Image #43 – Duplex 152 A + B – Panel ‘B’ Image #44 – 4-Plex 153 A,B,C,D,E – Meter-

Pak CMD

Image #45 – 4-Plex 153 A,B,C,D,E – Panel ‘A’ Image #46 – 4-Plex 153 A,B,C,D,E – Panel ‘B’

Image #47 – 4-Plex 153 A,B,C,D,E – Panel ‘C’ Image #48 – 4-Plex 153 A,B,C,D,E – Panel ‘D’

Image #49 – 4-Plex 153 A,B,C,D,E – Panel ‘E’ Image #50 – 4-Plex 153 A,B,C,D,E –

Mechanical Room Junction Box

Image #51 – Duplex 297 C + B – CMD 125A, 2-Pole Service Disconnects

Image #52 – Duplex 297 C + B – Panel ‘A’

Image #53 – Duplex 297 C + B – Panel ‘B’ Image #54 – Duplex 297 C + B – Panel ‘C’

Image #55 – Duplex 297 C + B – Mechanical Equipment

If you have any questions concerning the above, please do not hesitate to call me.

Sincerely, Jeremy Maxie, P.E., LC, RCDD Principal Electrical Engineer jam/pcc/ab/hhm

Aidan Blessing Snapshot

UTIL - SERVICE

CBL-DISC

WEAR MAIN SHOP - PANEL A

InitSymRMS 3P 5693.77 A InitSymRMS SLG 5068.26 A

CBL-PNL A

200A FUSE

S

P

WEAR MAIN SHOP-XF2-PNL A

WEAR MAIN SHOP - SERV DISC

InitSymRMS 3P 6290.85 A InitSymRMS SLG 5706.08 A

WEAR - ARC FLASH ANALYSIS - MAINTENANCE SHOP

FACILITY ONE-LINE DIAGRAM

AUGUST 31, 2024

DAPPER Fault Analysis Input Report (English)

Project: Kotzebue Maintenance Shop

Base Project

Utilities

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data -------- PU (100 MVA Base)

X PUR PUX/RUnitsDuty

UTIL - SERVICE BUS-0006 12,470 MVA 9,999.00In 1,000,000

SLG:

3P:

MVA 9,999.00

Pos:

Zero:333,333

0.0001

0.00010.0000

0.0000

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-0007

WEAR MAIN

SHOP - SERV

DISC

1 75 3/0 Pos:

Zero:

13.2789 7.1942

18.2889

CBL-DISC In

21.0972

Non-MagneticCopper

WEAR MAIN

SHOP - SERV

DISC

WEAR MAIN

SHOP - PANEL A

1 25 3/0 Pos:

Zero:

4.4263 2.3981

6.0963

CBL-PNL A In

7.0324

Non-MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

WEAR MAIN

SHOP-XF2-PNL A

BUS-0006 D 12,470 3

BUS-0007

WG 208 208

75.0 Pos:

Zero:

13.3333

13.3333

28.0000

28.0000

In

DAPPER Fault Contribution Complete Report

Comprehensive Short Circuit Study Settings

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Asymmetrical RMS (with DC offset and Decay)

Cycles

Project: Kotzebue Maintenance Shop

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

WEAR MAIN SHOP - PANEL A 5,694 005,068 5,725 005,099

InCABLECBL-PNL A 5,725 005,0995,694 005,068 5,068

WEAR MAIN SHOP - SERV DISC 6,291 005,706 6,345 005,757

InCABLECBL-PNL A 0 0000 000 InCABLECBL-DISC 6,345 005,7576,291 005,706 5,706

Arc Flash Evaluation Report

Project: Kotzebue Maintenance Shop

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

0.291200A FUSE 1.3919.75 18.00

0.208WEAR MAIN SHOP -

PANEL A

5.695.69 2.14 2.14 0.000 0.291 In Box Arc-rated FR Shirt & Pants

0.191200A FUSE 1.0316.32 18.000.208WEAR MAIN SHOP -

SERV DISC

6.296.29 2.38 2.38 0.000 0.191 In Box Nonmelting Materials

UTIL-PNL A

CBL-DISC

WEAR AUTO SHOP - PANEL A

InitSymRMS 3P 5974.65 A InitSymRMS SLG 5295.88 A

CBL-PNL A

CBL-PNL B

WEAR AUTO SHOP - PANEL B

InitSymRMS 3P 4492.26 A InitSymRMS SLG 3878.41 A

S

P

XF2-PNL A

PD-PNL B

300A FUSE

WEAR AUTO SHOP - SERV DISC

InitSymRMS 3P 6026.57 A InitSymRMS SLG 5352.01 A

WEAR - ARC FLASH ANALYSIS - AUTOMOTIVE SHOP

Project: Kotzebue Automotive Shop

Base Project

Utilities

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data -------- PU (100 MVA Base)

X PUR PUX/RUnitsDuty

UTIL-PNL A BUS-0007 12,470 MVA 9,999.00In 1,000,000

SLG:

3P:

MVA 9,999.00

Pos:

Zero:333,333

0.0001

0.00010.0000

0.0000

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

BUS-0008

WEAR AUTO

SHOP - SERV

DISC

1 115 300 Pos:

Zero:

11.9880 10.4729

26.6342

CBL-DISC In

19.0586

Non-MagneticCopper

WEAR AUTO

SHOP - SERV

DISC

WEAR AUTO

SHOP - PANEL A

1 3 300 Pos:

Zero:

0.3127 0.2732

0.6948

CBL-PNL A In

0.4972

Non-MagneticCopper

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

WEAR AUTO

SHOP - PANEL A

WEAR AUTO

SHOP - PANEL B

1 40 2 Pos:

Zero:

18.6760 4.3177

10.9837

CBL-PNL B In

29.6875

Non-MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XF2-PNL A BUS-0007 D 12,470 3

BUS-0008

WG 208 208

75.0 Pos:

Zero:

13.3333

13.3333

28.0000

28.0000

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Asymmetrical RMS (with DC offset and Decay)

Cycles

Project: Kotzebue Automotive Shop

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

WEAR AUTO SHOP - PANEL A 5,975 005,296 6,067 005,394

InCABLECBL-PNL B 0 0000 000 InCABLECBL-PNL A 6,067 005,3945,975 005,296 5,296

WEAR AUTO SHOP - PANEL B 4,492 003,878 4,499 003,886

InCABLECBL-PNL B 4,499 003,8864,492 003,878 3,878

WEAR AUTO SHOP - SERV DISC 6,027 005,352 6,122 005,453

InCABLECBL-PNL A 0 0000 000 InCABLECBL-DISC 6,122 005,4536,027 005,352 5,352

Project: Kotzebue Automotive Shop

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

2.000300A FUSE 10.1068.28 18.000.208WEAR AUTO SHOP -

PANEL A

5.975.97 2.25 2.25 0.000 2.000 In Box Arc-rated FR Shirt & Pants &

Arc Flash Suit

0.017PD-PNL B 0.073.11 18.00

0.208WEAR AUTO SHOP -

PANEL B

4.494.49 1.91 1.91 0.000 0.017 In Box Nonmelting Materials

2.000300A FUSE 10.2068.71 18.00

0.208WEAR AUTO SHOP -

SERV DISC

6.036.03 2.27 2.27 0.000 2.000 In Box Arc-rated FR Shirt & Pants &

UTIL-SERVICE

CBL-SERVICE

CBL-DISC CBL-MDP_1

PD-0002

PD-MDP

CBL-BUS

CBL-MDP_2

PD-BOILER

ELECTRIC BOILER DISC

InitSymRMS 3P 12900.85 A InitSymRMS SLG 11665.39 A

CBL-PANEL B_1

WEAR ARCTIC CENTER - PANEL B

InitSymRMS 3P 12624.99 A InitSymRMS SLG 11322.46 A

WEAR ARCTIC CENTER - MDP

InitSymRMS 3P 13340.30 A InitSymRMS SLG 12190.40 A

PD-PANEL G PD-PANEL L PD-DIMMER CABINET

CBL-PANEL G_1 CBL-PANEL L CBL-PANEL R1

CBL-DIMMER CABINET

CBL-PANEL R2

CBL-PANEL HB

E N

AUTO-PANEL G

CBL-PANEL G_2

WEAR ARCTIC CENTER - PANEL G

InitSymRMS 3P 11584.47 A InitSymRMS SLG 10110.85 A

WEAR ARCTIC CENTER - PANEL L

InitSymRMS 3P 13054.04 A InitSymRMS SLG 11858.60 A

WEAR ARCTIC CENTER - PANEL R1

InitSymRMS 3P 13244.02 A InitSymRMS SLG 12078.23 A WEAR ARCTIC CENTER - CABINET

InitSymRMS 3P 12725.13 A InitSymRMS SLG 11498.66 A

WEAR ARCTIC CENTER - PANEL R2

InitSymRMS 3P 8250.75 A InitSymRMS SLG 6917.57 A WEAR ARCTIC CENTER - PANEL HB

InitSymRMS 3P 6981.48 A InitSymRMS SLG 5851.57 A

CBL-PANEL B_2

WEAR ARCTIC CENTER - PANEL G2

InitSymRMS 3P 4570.57 A InitSymRMS SLG 3841.83 A

CBL-PANEL G2

S

P

XF2-SERVICE

FUSED DISC PNL 'B'

InitSymRMS 3P 12768.85 A InitSymRMS SLG 11517.91 A

PD-RF-1

PD-PANEL B

PD-PANEL R1 PD-PANEL HBPD-PANEL R2

PD-PANEL G2 PD-AHU-1

VFD-AHU-1

WEAR ARCTIC CENTER - RF-1

InitSymRMS 3P 3067.37 A InitSymRMS SLG 2239.51 A

WEAR ARCTIC CENTER - AHU-1

InitSymRMS 3P 3067.37 A InitSymRMS SLG 2239.51 A

CBL-FP

ELECTRIC FIRE PUMP

VFD-RF-1

CBL-RF-1

CBL-AHU-1

CBL-FP0

FIRE PUMP CONTROLS InitSymRMS 3P 8796.40 A InitSymRMS SLG 7623.45 A

PD-FIRE PUMP

SERV DISC - BOILER

InitSymRMS 3P 14233.31 A InitSymRMS SLG 13239.48 A

SERV DISC - MDP

InitSymRMS 3P 14734.83 A InitSymRMS SLG 13981.11 A

WEAR - ARC FLASH ANALYSIS - ARCTIC HERITAGE CENTER

Project: Kotzebue NW Arctic Heritage Center

Base Project

Utilities

Contribution

From Name

Bus

Name

In/Out

Service

Nominal

Voltage

-------- Contribution Data -------- PU (100 MVA Base)

X PUR PUX/RUnitsDuty

UTIL-SERVICE BUS-0021 12,470 MVA 9,999.00In 1,000,000

SLG:

3P:

MVA 9,999.00

Pos:

Zero:333,333

0.0001

0.00010.0000

0.0000

Synchronous Motors

Contribution

Name Bus

Name

In/Out

Service

Nominal

Voltage

------------ Contribution Data ------------

Base kVA X/R R PU X PU

---------PU (100 MVA Base)-------

X"

# of

Motors

ELECTRIC FIRE PUMP Pos

Neg

Zero

53.619 1,072.386

53.619 1,072.386

164,480.000

0.1500

0.1500

0.1500

20.00

20.00

20.00 INF

1 InBUS-0035 208.00 13.99

Cables

Cable

Name

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

WEAR ARCTIC

CENTER - PANEL

G

WEAR ARCTIC

CENTER - AHU-1

1 10 4 Pos:

Zero:

32.4780 58.3506

148.4569

CBL-AHU-1 In

51.6332

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

SERV DISC -

BOILER

ELECTRIC

BOILER DISC

2 25 3/0 Pos:

Zero:

2.2132 1.1990

3.0481

CBL-BUS In

3.5162

Non-MagneticCopper

WEAR ARCTIC

CENTER - MDP

WEAR ARCTIC

CENTER -

CABINET

1 5 1/0 Pos:

Zero:

1.4677 0.4993

1.2701

CBL-DIMMER

CABINET

In

2.3333

Non-MagneticCopper

BUS-0002

SERV DISC -

BOILER

2 10 3/0 Pos:

Zero:

0.9303 0.5998

1.4770

CBL-DISC In

2.9320

MagneticCopper

BUS-0002

FIRE PUMP

CONTROLS

1 25 4 Pos:

Zero:

18.0288 2.9239

7.4369

CBL-FP In

28.6612

Non-MagneticCopper

FIRE PUMP

CONTROLS

BUS-0035

1 27 4 Pos:

Zero:

19.4712 3.1578

8.0319

CBL-FP0 In

30.9541

Non-MagneticCopper

BUS-0002

SERV DISC - MDP

2 3 300 Pos:

Zero:

0.0634 0.2285

0.5814

CBL-MDP_1 In

0.1009

Non-MagneticCopper

SERV DISC - MDP

WEAR ARCTIC

CENTER - MDP

2 25 300 Pos:

Zero:

0.5287 1.9040

4.8453

CBL-MDP_2 In

0.8408

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

ELECTRIC

BOILER DISC

FUSED DISC PNL

'B'

2 2 1/0 Pos:

Zero:

0.2935 0.0999

0.2540

CBL-PANEL B_1 In

0.4667

Non-MagneticCopper

FUSED DISC PNL

'B'

WEAR ARCTIC

CENTER - PANEL

B

2 2 1/0 Pos:

Zero:

0.2959 0.1248

0.3072

CBL-PANEL B_2 In

0.9324

MagneticCopper

WEAR ARCTIC

CENTER - MDP

BUS-0008

1 10 300 Pos:

Zero:

0.4230 1.5232

3.8762

CBL-PANEL G_1 In

0.6726

Non-MagneticCopper

BUS-0009

WEAR ARCTIC

CENTER - PANEL

G

1 10 300 Pos:

Zero:

0.4234 1.5237

3.8769

CBL-PANEL G_2 In

0.6731

Non-MagneticCopper

WEAR ARCTIC

CENTER - PANEL

G

WEAR ARCTIC

CENTER - PANEL

G2

1 25 8 Pos:

Zero:

46.8634 3.4844

8.8642

CBL-PANEL G2 In

74.5019

Non-MagneticCopper

WEAR ARCTIC

CENTER - MDP

WEAR ARCTIC

CENTER - PANEL

HB

1 75 1/0 Pos:

Zero:

22.0160 7.4889

19.0516

CBL-PANEL HB In

35.0002

Non-MagneticCopper

WEAR ARCTIC

CENTER - MDP

WEAR ARCTIC

CENTER - PANEL

L

1 3 3/0 Pos:

Zero:

0.5312 0.2878

0.7316

CBL-PANEL L In

0.8439

From Bus

To Bus

Qty

/Ph

Length

Feet

------ Cable Description ------

Size Cond. Type Duct Type Insul

Per Unit (100 MVA Base)

R pu jX pu

In/Out

Service

WEAR ARCTIC

CENTER - MDP

WEAR ARCTIC

CENTER - PANEL

R1

1 1 3/0 Pos:

Zero:

0.1771 0.0959

0.2439

CBL-PANEL R1 In

0.2813

Non-MagneticCopper

WEAR ARCTIC

CENTER - MDP

WEAR ARCTIC

CENTER - PANEL

R2

1 75 3/0 Pos:

Zero:

13.2789 7.1942

18.2889

CBL-PANEL R2 In

21.0972

Non-MagneticCopper

WEAR ARCTIC

CENTER - PANEL

G

WEAR ARCTIC

CENTER - RF-1

1 10 4 Pos:

Zero:

32.4780 58.3506

148.4569

CBL-RF-1 In

51.6332

Non-MagneticCopper

BUS-0020

BUS-0002

2 20 300 Pos:

Zero:

1.0725 1.1395

2.8060

CBL-SERVICE In

3.3793

MagneticCopper

2-Winding Transformers

Xformer

Name Bus Conn. Volts FLA

Nominal kVA

Z PU (100 MVA Base)

R pu jX pu

In/Out

Service

------------------Primary & Secondary---------------

XF2-SERVICE BUS-0021 D 12,470 16

BUS-0020

WG 208 958

300.0 Pos:

Zero:

5.6667

5.6667

16.5333

16.5333

Three Phase Fault

Single Line to Ground

Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes

Yes

No

No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault

First Branch From Fault

Report phase quantities

Initial Symmetrical RMS (with 1/2 Cycle Asym)

Cycles

Project: Kotzebue NW Arctic Heritage Center

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

ELECTRIC BOILER DISC 12,901 0011,665 13,432 0012,006

InCABLECBL-PANEL B_1 0 0000 000 InCABLECBL-BUS 13,432 0012,00612,901 0011,665 11,665

FIRE PUMP CONTROLS 8,796 007,623 8,803 007,626

InCABLECBL-FP0 258 00149257 00149 InCABLECBL-FP 8,623 007,5228,617 007,519 7,623

FUSED DISC PNL 'B' 12,769 0011,518 13,256 0011,829

InCABLECBL-PANEL B_2 0 0000 000 InCABLECBL-PANEL B_1 13,256 0011,82912,769 0011,518 11,518

SERV DISC - BOILER 14,233 0013,239 15,246 0013,898

InCABLECBL-BUS 0 0000 000

InCABLECBL-DISC 15,246 0013,89814,233 0013,239 13,239

SERV DISC - MDP 14,735 0013,981 16,074 0015,038

InCABLECBL-MDP_2 0 0000 000

Bus Name

-------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG

----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

---------Contributions---------

InCABLECBL-MDP_1 16,074 0015,03814,735 0013,981 13,981

WEAR ARCTIC CENTER - CABINET 12,725 0011,499 13,555 0012,174

InCABLECBL-DIMMER CABINET 13,555 0012,17412,725 0011,499 11,499

WEAR ARCTIC CENTER - AHU-1 3,067 002,240 3,197 002,394

InVFD-AHU-1 0 0000 000

InCABLECBL-AHU-1 3,197 002,3943,067 002,240 2,240

WEAR ARCTIC CENTER - MDP 13,340 0012,190 14,623 0013,263

InCABLECBL-PANEL HB 0 0000 000 InCABLECBL-PANEL R2 0 0000 000 InCABLECBL-DIMMER CABINET 0 0000 000 InCABLECBL-PANEL L 0 0000 000 InCABLECBL-PANEL R1 0 0000 000 InCABLECBL-PANEL G_1 0 0000 000 InCABLECBL-MDP_2 14,623 0013,26313,340 0012,190 12,190

WEAR ARCTIC CENTER - PANEL B 12,625 0011,322 13,072 0011,594

InCABLECBL-PANEL B_2 13,072 0011,59412,625 0011,322 11,322

WEAR ARCTIC CENTER - PANEL G 11,584 0010,111 12,780 0011,167

InCABLECBL-PANEL G2 0 0000 000 InCABLECBL-AHU-1 0 0000 000 InCABLECBL-RF-1 0 0000 000 InCABLECBL-PANEL G_2 12,780 0011,16711,584 0010,111 10,111

WEAR ARCTIC CENTER - PANEL G2 4,571 003,842 4,571 003,842

InCABLECBL-PANEL G2 4,571 003,8424,571 003,842 3,842

WEAR ARCTIC CENTER - PANEL HB 6,981 005,852 6,989 005,859

InCABLECBL-PANEL HB 6,989 005,8596,981 005,852 5,852

WEAR ARCTIC CENTER - PANEL L 13,054 0011,859 14,157 0012,774

InCABLECBL-PANEL L 14,157 0012,77413,054 0011,859 11,859

WEAR ARCTIC CENTER - PANEL R1 13,244 0012,078 14,464 0013,095

InCABLECBL-PANEL R1 14,464 0013,09513,244 0012,078 12,078

WEAR ARCTIC CENTER - PANEL R2 8,251 006,918 8,319 006,981

InCABLECBL-PANEL R2 8,319 006,9818,251 006,918 6,918

WEAR ARCTIC CENTER - RF-1 3,067 002,240 3,197 002,394

InVFD-RF-1 0 0000 000 InCABLECBL-RF-1 3,197 002,3943,067 002,240 2,240

Project: Kotzebue NW Arctic Heritage Center

Base Project

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus

0.077PD-0002 0.9315.36 18.00

0.208ELECTRIC BOILER

DISC

12.9012.90 5.15 5.15 0.000 0.077 In Box Nonmelting Materials

2.000MaxTripTime @2.0s 18.1598.51 18.00

0.208FIRE PUMP

CONTROLS

8.628.80 3.98 3.90 0.000 2.000 In Box Arc-rated FR Shirt & Pants &

Arc Flash Suit

0.080PD-0002 0.9615.63 18.000.208FUSED DISC PNL 'B' 12.7712.77 5.09 5.09 0.000 0.080 In Box Nonmelting Materials

2.000MaxTripTime @2.0s 31.03137.79 18.00

0.208SERV DISC - BOILER 13.9914.23 6.61 6.49 0.000 2.000 In Box Arc-rated FR Shirt & Pants &

0.793PD-MDP 11.0772.31 18.00

0.208SERV DISC - MDP 14.7314.74 5.90 5.90 0.000 0.793 In Box Arc-rated FR Shirt & Pants &

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus kV

0.017PD-DIMMER

CABINET

0.236.42 18.00

0.208WEAR ARCTIC

CENTER - CABINET

12.7312.73 5.89 5.89 0.000 0.017 In Box Nonmelting Materials

2.000PD-AHU-1 5.4246.24 18.000.208WEAR ARCTIC

CENTER - AHU-1

3.073.07 1.26 1.26 0.000 2.000 In Box Arc-rated FR Shirt & Pants

1.263PD-MDP 15.8490.47 18.00

CENTER - MDP

13.3413.34 5.33 5.33 0.000 1.263 In Box Arc-rated FR Shirt & Pants &

0.008PD-PANEL B 0.114.11 18.00

CENTER - PANEL B

12.6312.63 5.84 5.84 0.000 0.008 In Box Nonmelting Materials

0.017PD-PANEL G 0.215.99 18.00

CENTER - PANEL G

11.5811.58 5.34 5.34 0.000 0.017 In Box Nonmelting Materials

0.020PD-PANEL G2 0.083.40 18.000.208WEAR ARCTIC

CENTER - PANEL G2

4.574.57 1.95 1.95 0.000 0.020 In Box Nonmelting Materials

2.000PD-PANEL HB 12.0876.37 18.00

CENTER - PANEL HB

6.986.98 2.67 2.67 0.000 2.000 In Box Arc-rated FR Shirt & Pants &

0.016PD-PANEL L 0.236.40 18.00

CENTER - PANEL L

13.0513.05 6.05 6.05 0.000 0.016 In Box Nonmelting Materials

Working

Distance

(in)

Arc

Duration

Breaker

Opening

Time

(sec.)

Trip/

Delay

Time

(sec.)

Protective

Device Name

Incident

Energy

(cal/cm2)

ArcFlash

Boundary

(in)

Bus Name

Bus

Bolted

Fault

(kA)

Bus

Arcing

Fault

(kA)

PPEProt

Bolted

Fault

(kA)

Prot

Arcing

Fault

(kA)

Arc

Type

Bus

0.016PD-PANEL R1 0.236.47 18.00

CENTER - PANEL R1

13.2413.24 6.14 6.14 0.000 0.016 In Box Nonmelting Materials

0.024PD-PANEL R2 0.205.91 18.000.208WEAR ARCTIC

CENTER - PANEL R2

8.258.25 3.71 3.71 0.000 0.024 In Box Nonmelting Materials

1.998PD-RF-1 5.4246.22 18.00

CENTER - RF-1

3.073.07 1.26 1.26 0.000 1.998 In Box Arc-rated FR Shirt & Pants

Northwest Arctic Heritage Center
Automotive Shop
Storage Warehouse
Maintenance Shop
Bunkhouse
Annex Visitor Info Center 154A
Corner House 154B
Duplex 154 C + D
Duplex 152 A + B
4-Plex 153 A,B,C,D,E
Duplex 297 C + B
Images 1-4
Images 5-8
Images 9-12
Images 13-16
Images 17-20
Images 21-24
Images 25-28
Images 29-32
Images 33-36
Images 37-40
Images 41-44
Imaged 45-48
Images 49-52
Images 53-55
Maintenance Shop Arc Flash Analysis
1 - One-Line Diagram
2 - Fault Analysis Input Report
3 - Fault Contribution Report
4 - Arc Flash Evaluation Report
Automotive Shop Arc Flash Analysis
1 - One-Line Diagram
2 - Fault Analysis Input Report
3 - Fault Contribution Report
4 - Arc Flash Evaluation Report
Arctic Heritage Center Arc Flash Analysis
1 - One-Line Diagram
2 - Fault Analysis Input Report
3 - Fault Contribution Report
4 - Arc Flash Evaluation Report

File details come from the government source that posted it. Updated .