Bld 7 1.pdf

PDF 200 KB Posted Oct 30, 2026

Attached to: 657A5-26-111, Triennial Electrical Testing
Solicitation number: 36C25526R0186
Issued by: Department of Veterans Affairs Veterans Health Administration Veterans Integrated Service Network 15

About this file

Written by GovTribe AI · Oct 30, 2026

This document is an Electrical One-Line Diagram and associated schedules for a seismic upgrade and remodel project at the VA Medical Center in Marion, Illinois (Building 7, Phase 3). The drawing details the electrical distribution system, including three main panelboards: MDP (Main Distribution Panel) rated at 400 amps/480V 3-phase 4-wire with MLO (Main Lugs Only), Panel P1 rated at 225 amps/208V 3-phase 4-wire, and Panel P2 rated at 100 amps/208V 3-phase 4-wire. The system is fed from an incoming 12.47 kV primary service stepped down by a 300 kVA transformer to 480V, then further reduced to 208/120V for branch distribution via a 112.5 kVA transformer.

The schedules specify detailed circuit branch assignments with breaker ratings (primarily 20, 25, and 30 amp devices), load descriptions organized by office and functional areas (receptacles for offices 100-134, conference rooms, break rooms, print rooms, lighting circuits, HVAC equipment, and fire/life safety systems), and calculated demand loads with power factor analysis. Key requirements include providing shunt-trip breakers interlocked with the fire alarm system, surge suppression units (TVSS) on both 480V and 208V systems, branch circuit conductor sizing per the included copper conductor and conduit sizing chart (ranging from 12 AWG to 500 MCM depending on breaker amperage and application), and proper grounding per NEC standards. The document includes detailed riser plan notes specifying conductor types, conduit sizes, equipment specifications, and installation requirements for all major feeders and service disconnects. Drawing number EG7-600, dated March 25, 2020, prepared by the design firm for the Department of Veterans Affairs.

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ELECTRICAL ONE-LINE DIAGRAM

NO SCALE

PANEL

'MDP'

PANEL

'P1'

PANEL

'P2'

13 11

INTERIOREXTERIOR

REV

NO.

REV

NO.

REV

NO.

NOTE

NO.

NOTE

NO.

NOTE

NO.

NOTES:

REV:

GENERAL NOTES:

SERVICE:

AMP FRAME:

MAINS:

CRT#

SERVICE:

AMP:

CRT#

SERVICE:

AMP:

CRT#

PROVIDE SHUNT-TRIP TYPE BREAKER AND INTERLOCK WITH FIRE ALARM SYSTEM.

PROVIDE RED BREAKER, BREAKER CAPABLE OF BEING LOCKED IN THE ON/OFF POSITION

CIRCUIT ROUTED THRU LIGHTING CONTACTOR

PROVIDE MANF. BREAKER TIE CLIP WHEN SHARING NEUTRALS

CONTRACTOR TO REFERENCE BRANCH CIRCUIT COPPER CONDUCTOR &

CONDUIT SIZING CHART FOR SIZING OF BRANCH CIRCUITS AND OR FEEDERS AT OR BELOW 100 AMPS

NEW

208/120 VOLT , 3 - PHASE , 4 - WIRE

225 AMP

MLO

WITH SUB FEED LUGS

LOAD

DESCRIPTION

REC; OFFICES 100/101

REC; OFFICES 102/103

REC; OFFICES 103/104/105/O.OFF 112

REC; OFFICES 107/1108/O.OFF 112

REC; OFFICE 110/FILE RM 111

REC; PRINT 114 (COPIER)

REC; O.OFF 112/OFFICE 115/116

REC; OPEN OFFICE 112 PART. FURN

SPARE

REC; DRINKING F.

NEW

208/120 VOLT , 3 - PHASE , 4 - WIRE

AMP

WITH SUB FEED LUGS

LOAD

DESCRIPTION

REC; RESTROOMS/DIFF. PWR/LAV.

REC; JAN, MECH/TRAP PRMR/BAS

SPARE

REC; OPEN OFFICE 134 PART. FURN

SPARE

NEW

208/120 VOLT , 3 - PHASE , 4 - WIRE

AMP

LOAD

DESCRIPTION

REC; CONF RM 122

REC; CONF RM 122 FLR BOX/TV

REC; CONF RM 122/PROJ.

SPARE

FIRE/SMOKE DAMPERS

SECURITY PANELS

SECURITY DEVICES

FIRE ALARM

SUMP PUMP

RECIRC PUMP

PWR TO MOTORIZED DIFFUSERS

FCU-1 / CU-1

AHU-3 W/ ELEC HT

BRKR

AMP

TOTAL:

PANELBOARD P1 SCHEDULE

0.9

0.72

0.36

PANELBOARD P1 SCHEDULE

1.08

0.72

PANELBOARD P1 SCHEDULE

0.072

0.72

0.5

3.2

12.012

LOAD KVA

0.9

0.72

0.54

LOAD KVA

0.72

LOAD KVA

0.72

0.54

0.3

0.5

0.44

2.8

12.68

0.9

0.8

0.72

0.8

0.72

0.18

0.5

0.8

3.2

2.8

14.3

3PH

MOUNTING:

CRT#

MOUNTING:

CRT#

MOUNTING:

CRT#

SURFACE

LOAD

DESCRIPTION

REC; OFFICES 101/102

REC; OFFICES 104/105

REC; OFFICES 106/107

REC; OFFICES 108/109

REC; FILE RM 111/O.OFF 112

REC; PRINT RM 114 CTR

REC; OFFICES 116/117

REC; OPEN OFFICE 112 PART. FURN

REC; OFFICE 115/116

REC; GENRL 113/114/118 & EXT. FRT

LTG; OPEN OFFICE, OFFICES

LTS; OFFICES / RR / CONF RM

LTG; OPEN OFFICE, OFFICES

LTG; EMERGENCY/ EXIT

LTS; BUILDING EXTERIER

LTS; PARKING LOT

DESCRIPTION

REC; OFFICES 131/132

REC; OFFICE 130/131

SPARE

REC; PRINT 133 WIREMOLD

REC; GENERAL PURPOSE

REC; OPEN OFFICE 134 PART. FURN

REC; BREAK RM CTR TOP

DESCRIPTION

REC; BREAK RM DISPOSAL

REC; BREAK RM MICROWAVE

REC; BREAK RM REFRIG.

REC; BREAK RM VENDING

REC; BREAK RM WALL

PROVISION / SPACE

LIGHTS @

RECEPTACLES @

LARGEST MOTOR LOAD @

CONTINUOUS LOAD @

OTHER AND NON-CONTINUOUS LOADS @

BRKR

SECTION 2

BRKR

SECTION 3

BRKR

AMP

TOTAL:

KVA / PHASE TOTAL:

AMP / PHASE TOTAL:

TOTAL CONNECTED LOAD:

TOTAL CONNECTED CURRENT:

125%:

100%:

50%

125%:

100%:

TOTAL DEMAND LOAD:

POWER FACTOR:

TOTAL DEMAND CURRENT:

0.9

0.72

1.55

0.64

0.9

1.08

0.72

0.8

1.2

0.8

0.72

14.71

12.012

26.722

222.7

LOAD KVA

0.9

0.72

0.9

0.55

0.9

LOAD KVA

0.72

0.5

0.72

0.36

LOAD KVA

1.2

0.5

0.54

13.49

12.68

26.17

218.1

80.03

222.15

8.18

10.00

24.20

0.00

2.50

6.70

57.17

1.00

158.70

RATING:

LOCATION:

0.96

0.54

0.72

1.7

1.2

RATING:

LOCATION:

0.5

0.72

0.36

RATING:

LOCATION:

1.2

0.8

0.54

12.84

14.3

27.14

226.2

KVA

AMPS

KVA

% PF

AMPS

VERIFY A.I.C.

MECHANICAL

3PH

VERIFY A.I.C.

MECHANICAL

3PH

VERIFY A.I.C.

MECHANICAL

3PH

0.0

NOTE

NO.

NOTE

NO.

NOTE

NO.

REV

NO.

REV

NO.

REV

NO.

REV

NO.

NOTE

NO.

NOTES:

REV:

GENERAL NOTES:

SERVICE:

AMP FRAME:

MAINS:

CRT#

PROVIDE SHUNT-TRIP TYPE BREAKER AND INTERLOCK WITH FIRE ALARM SYSTEM.

CONTRACTOR TO REFERENCE BRANCH CIRCUIT COPPER CONDUCTOR &

CONDUIT SIZING CHART FOR SIZING OF BRANCH CIRCUITS AND OR FEEDERS AT OR BELOW 100 AMPS

NEW

480/277 VOLT , 3 - PHASE , 4 - WIRE

400 AMP

MLO

WATER HEATER

AHU-1 W/ ELEC HEAT

AHU-2 W/ ELEC HEAT

AHU-4 W/ ELEC HEAT

AHU-5 W/ ELEC HEAT

PROVISION / SPACE

BRKR

AMP

TOTAL:

PANELBOARD MDP SCHEDULE

LOAD KVA

3PH

4.5

70.5

MOUNTING:

CRT#

DOAS-1

HP-DOAS-1

HP-1 #1

HP-1 #2

HP-DOAS-2

TVSS

XFMR 'T1'

LIGHTS @

RECEPTACLES @

LARGEST MOTOR LOAD @

CONTINUOUS LOAD @

OTHER AND NON-CONTINUOUS LOADS @

BRKR

AMP

TOTAL:

KVA / PHASE TOTAL:

AMP / PHASE TOTAL:

TOTAL CONNECTED LOAD:

TOTAL CONNECTED CURRENT:

125%:

100%:

50%

125%:

100%:

TOTAL DEMAND LOAD:

POWER FACTOR:

TOTAL DEMAND CURRENT:

90.9

PROVIDE W / INTEGRAL TVSS

LOAD KVA

90.9

226.68

272.65

0.00

156.18

226.68

1.00

272.66

RATING:

LOCATION:

90.9

KVA

AMPS

KVA

% PF

AMPS

VERIFY A.I.C.

MECHANICAL

3PH

9.3

17.1

17.5

1.5

75.78

156.2

70.5

226.7

NOTE

NO.

REV

NO.

REV

NO.

NOTE

NO.

NOTES:

REV:

GENERAL NOTES:

SERVICE:

AMP FRAME:

MAINS:

CRT#

CONTRACTOR TO REFERENCE BRANCH CIRCUIT COPPER CONDUCTOR &

CONDUIT SIZING CHART FOR SIZING OF BRANCH CIRCUITS AND OR FEEDERS AT OR BELOW 100 AMPS

NEW

208/120 VOLT , 3 - PHASE , 4 - WIRE

100 AMP

MLO

REC;GENERAL

REC IG; TTB

REC IG; CABLETRAY (RACK)

PROVISION / SPACE

TVSS

BRKR

AMP

TOTAL:

PANELBOARD P2 SCHEDULE

0.9

0.8

2.5

LOAD KVA

0.36

0.8

1.16

0.36

0.8

1.16

3PH

1.5

MOUNTING:

CRT#

REC; IT COMM. EQ.

REC; IT HEAVY DUTY

PROVISION / SPACE

LIGHTS @

RECEPTACLES @

LARGEST MOTOR LOAD @

CONTINUOUS LOAD @

OTHER AND NON-CONTINUOUS LOADS @

BRKR

AMP

TOTAL:

KVA / PHASE TOTAL:

AMP / PHASE TOTAL:

TOTAL CONNECTED LOAD:

TOTAL CONNECTED CURRENT:

125%:

100%:

50%

125%:

100%:

TOTAL DEMAND LOAD:

POWER FACTOR:

TOTAL DEMAND CURRENT:

2.5

10.5

88.9

LOAD KVA

1.16

7.16

61.1

26.32

73.06

0.00

10.00

7.41

0.00

1.50

18.91

1.00

52.49

RATING:

LOCATION:

1.16

7.16

61.1

KVA

AMPS

KVA

% PF

AMPS

VERIFY A.I.C.

MECHANICAL

3PH

0.0

1.5

NOTE

NO.

REV

NO.

107 12

UNLESS OTHERWISE NOTED ON THE DRAWINGS.=*

100 1 AWG

2 AWG

1-1/4"

8 AWG

1-1/2"

1-1/4"

1-1/2"

1-1/4"

1-1/2"

1-1/4"

CONDUCTOR SIZE

BRANCH CIRCUIT COPPER CONDUCTOR

4 AWG

6 AWG

4 AWG

3 AWG

8 AWG

6 AWG

8 AWG

OVERCURRENT

PROTECTION DEVICE

RATING (AMPS)

12 AWG

10 AWG

SIZE

CONDUCTOR

REQUIRED

3/4"

8 AWG

10 AWG

1-1/4"

3/4"

WIRE + GND.

SINGLE PHASE 2

CONDUIT SIZE

AND CONDUIT SIZING CHART

10 AWG

12 AWG

EQUIPMENT

GROUNDING

3/4"

CONDUIT SIZE

SINGLE PHASE 3

WIRE + GND.

3/4"

1-1/4"

3/4"

1-1/4"

3/4"

THREE PHASE 4

3/4"

THREE PHASE 3

CONDUIT SIZE

WIRE + GND.

3/4"

WIRE + GND.

CONDUIT SIZE

=* ALL CONDUCTORS SIZED ON THE POWER RISER DIAGRAM OR IN BRANCH CIRCUIT CONDUCTOR TABLE ARE BASED ON 3 CURRENT

CARRYING CONDUCTORS IN A RACEWAY OR CABLE. CONDUCTORS SHALL BE DERATED IN ACCORDANCE WITH THE NEC IF 4 OR MORE

CONDUCTORS ARE PLACED IN A RACEWAY OR CABLE.

UNLESS OTHERWISE NOTED ON THE DRAWINGS, ALL BRANCH CIRCUITS AND FEEDERS TO BE PROVIDED WITH A NEUTRAL WIRE.=*

RISER PLAN NOTES

1. INCOMING PRIMARY (3) COPPER FEEDERS, TAP SHIELD/PVC, SHIELDED 15KV, UL TYPE

MV-105, 133% INSULTION, 220 MILS, SINGLE CONDUCTOR, REFERENCE ELECTRICAL SITE

PLAN FOR ADDITIONAL INFORMATION.

2. PROVIDE & INSTALL 300 KVA, CONCRETE PAD MOUNTED TRANSFORMER, 12.47 kV TO 480V.

REFERENCE TRANSFORMER DETAIL.

3. 4"C, 3-#500 & 1-#3 GROUND WIRE

4. PROVIDE & INSTALL, 400A/3P FUSED SERVICE ENTRANCE RATED SAFETY SWITCH IN A

NEMA 3R ENCLOSURE, FUSE @ 400A. REFERENCE MAIN SERVICE ENTRANCE GROUNDING

DETAIL SHEET EG7-501.

5. 4"C, 4-#500 & 1-#3 GROUND WIRE

6. PROVIDE & INSTALL SURFACE MOUNTED TVSS UNIT (CURRENT TECHNOLOGY MODEL

CG60-480/277-3GY) FEED THROUGH 60A, 3-PHASE CIRCUIT BREAKER. LOCATE AS CLOSE

AS POSSIBLE TO TOP OF PANEL. CONDUCTORS SHALL NOT HAVE SHARP BENDS. INSTALL

TVSS UNIT PER MANUFACTURER RECOMMENDATION.

7. PROVIDE & INSTALL 1-1/2"C, 3-#1/0 & 1-#6 GROUND WIRE.

8. PROVIDE & INSTALL 200A/3P NON-FUSED DISC. SWITCH NEMA 3R

9. PROVIDE & INSTALL NEMA 3R 112.5 KVA ON A CONCRETE PAD. 480/208-120 VOLT, 3Ø, 4W

TRANSFORMER. GROUND PER NEC. 250 W/#3 GROUND WIRE.

10. PROVIDE & INSTALL 2-1/2"C, 4-#4/0 & 1-#4 GROUND WIRE.

11. PROVIDE & INSTALL 200A/3P FUSED SAFETY DISC. SWITCH IN A NEMA 3R ENCLOSURE.

FUSE AT 200 AMPS. FEED OUT OF BACK OF DISCONNECT AND DIRECLTY INTO PANEL 'P1',

WITH CONDUCTORS (NOTE 10).

12. PROVIDE & INSTALL 1-1/4"C, 4-#4 & 1-#8 GROUND WIRE.

13. PROVIDE & INSTALL 100A/3P FUSED SAFETY DISC. SWITCH IN A NEMA 3R ENCLOSURE,

FUSE AT 80 AMPS

14. PROVIDE & INSTALL SURFACE MOUNTED TVSS UNIT (CURRENT TECHNOLOGY MODEL

CG40-120/208-3GY) FEED THROUGH 30A, 3-PHASE CIRCUIT BREAKER. LOCATE AS CLOSE

AS POSSIBLE TO TOP OF PANEL. CONDUCTORS SHALL NOT HAVE SHARP BENDS. INSTALL

TVSS UNIT PER MANUFACTURER RECOMMENDATION.

E L E

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EG7-600

COA No.

184005671-002 19.6309.00

MARCH 25, 2020

VA PROJECT NO: 657-345

Dwg: Of:# #

DRAWING NO:

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File details come from the government source that posted it. Updated Oct 30, 2026.