14.38_E600 - PARTIAL SINGLE LINE DIAGRAM.pdf
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- Solicitation number
- 36C24926R0057
About this file
This document is an electrical single-line diagram for a medical center facility, specifically the Mt. Home, VA Partial Single Line Diagram for the Corporate Bldg 204 Cath Lab II.
The drawing depicts the electrical distribution system for the facility, including multiple panelboards, transfer switches, transformers, and circuit breakers throughout the first and second floors of the building. Key components shown include main service equipment at 480/277V and 208/120V, various sized circuit breakers ranging from 15A to 400A, multiple automatic transfer switches (ATS) for backup power, uninterruptible power supplies (UPS) rated at 1.1KVA to 75KVA, and isolated power panels rated at 7.5KVA for medical equipment. The diagram identifies critical loads such as the Cath Lab, air handling units (AHU), and various medical equipment served by dedicated circuits and backup systems.
A critical note states that equipment names and identifiers require field verification and relabeling. The contractor must track all transfer switches and panelboards, then apply laminated, engraved nameplates with unique building and branch identifiers using a systematic naming convention (e.g., 204-ATS-CR-1, 204-ATS-LS-1). The scope assumes work on two automatic transfer switches and two panelboards, including upstream and downstream equipment, requiring 12 labels and 12 panel schedules as part of the project deliverables.
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Text version
FLOOR
NORMAL - N
EQUIPMENT - EQ
CRITICAL - C/CR
LIFE SAFETY - LS
480Y/277V - H
208Y/120V - BLANK
1ACRH1
1100kW 1375kVA 480Y/277V 130 C
3PH-4W
SEPARATELY
DERIVED SYSTEM
G
2000A
400A
125A
400A, 480Y/277V, 3PH-4W, 14KAIC, 12.6KAISC, RM. 222A2AEQH1-1
SPARE
125A
RM L225H CATH
LAB UPS
(1) (2) 20A
(3) 20A
(4) 150A
(5)
SPACE
(7-12)
AHU-1
SUPPLY
AHU-1
RETURN
PHILLIPS
PDU
ATS-EQ2
#A - # POLE
RM. L169NE
BLDG. 204
CHILLER
(PREVIOUS CATH
LAB CHILLER)
268 MCA
FIRST FLOOR
SECOND FLOOR
ROOF
BUILDING SECTION
SEQUENTIAL DESIGNATOR
BUILDING 77
(BUILDING 204
BASEMENT RM. L001)
1ALSH1
125A MCB
480/277V
RM. 169
(1)
(E) XFMR
1000kVA 12.47kV:
480/277V 5.79%Z
125A
1600A
(E) MCB
(E)PRIMARY
SWITCH
12.47kV
15CLE-50E
(2) 125A
(3) 400A
ATS-UPS
BLDG. 77
(4) 400A
(5) 400A
(6) 400A
(7) 400A
(8) 400A
(9) 400A
(10) 300A
(11) 250A
(12) 250A
ATS-EL
(E) MSB-204A
1600A
480/277V
65KA SCCR
20.8KAISC
125A
800A
(E) MCB
ATS-EQ
125A
ATS-EL
400A
ATS-LS
400A
ATS-CR
400A
(E) 204-EDP
1600A
480/277V
65KA SCCR
SPACE SPACE300A 125A 400A 400A 400A
(E) 77 204-XSB
1600A
480/277V
35KA SCCR
ATS-EQ3 MRI
#A - # POLE
RM. L169
800A600A
XXDP
600A
MDSS
(1)(1)(1)
ATS-LS
RM. L169
NE
2ALSH1
100A MCB
480/277V
RM. L252
ATS-CR
RM. L169
NE
1ACH1
225A MCB
480/277V
RM. 169
1BCH1
250A MCB
480/277V
RM. L108
2BCH1
60A MCB
480/277V
RM. L226
2BC1
60A MCB
208/120V
RM. L226
T-2BC1
15KVA
ATS-EQ
RM. L169
NE
1ACH2
100A MCB
480/277V
RM. L150
2ACH1
60A MCB
480/277V
RM. L252
2AC1
100A MCB
208/120V
RM. L252
T-2AC1
45KVA
1AEQH1
250A MCB
480/277V
RM. 169
1BEQH1
250A MCB
480/277V
RM. 169
2BEQH1
225A MCB
480/277V
RM. L226
2BEQ1
60A MCB
208/120V
RM. L220
T-2BEQ1
15KVA
ATS-UPS
BLDG. 77
ATS-CR3
400A - 4 POLE
RM. L169
NE
PROVIDE NEW 400A TRANSFER SWITCH.
IP-A-1
ISOLATED
POWER
PANEL
7.5KVA
480 TO 120V
SINGLE PHASE
ISOLATION
MONITOR AND
(4) DUPLEX AND
GROUND JACKS
CATH LAB
UPS
480V
RM. L228
(3) #1, #6G, 1-1/2"C
(4) #500, #2G, 4"C
UTILIZE EXISTING SPARE BREAKER
SWGR-MDSA
400A
N E
2AEQH1-2
400A MCB
480/277V
RM. L207A
MRI MDP
200A MCB
480/277V
RM. L291
MRI
CHILLER
48 FLA
ATS-EQ4
RM. L169
NE
ATS-CR2
RM. L169
NE
2AC2-1
400A MCB
480/277V
RM. L222A
(4) #500, #2G, 4"C
T-2AC2-1
75KVA
400A
SPARE
PROVIDE PANELBOARD
1BNH1
400A MCB
480/277V
RM. L108
2BNH1
100A MCB
480/277V
RM. L226
2BN1-1
175A MCB
208/120V
RM. L226
T-2BN1
45KVA
1CCH1
480/277V
PROVIDE 400A BREAKER OF SAME TYPE AND
INTERRUPTING RATING AS EXISTING CIRCUIT BREAKERS
1ANH1
400A MCB
480/277V
2ANH1
225A MCB
480/277V
RM. L252
2AN1-1
225A MCB
208/120V
RM. L252
T-2AN1
75KVA
2AC2-2
400A MLO
480/277V
RM. L222A
2ANH2
400A MCB
480/277V
RM. L231400A
125A
(3) POLE
SHUNT
TRIP
400A, 480Y, 3PH-4 #KAIC, #KAISC2ACH3
(1) (2)
30A
(2) POLE
(3) (4) (1)
CATH LAB
UPS
480V
RM. L216
(2)
IP-A-2
ISOLATED
POWER
PANEL
7.5KVA
480 TO 120V
SINGLE PHASE
ISOLATION
MONITOR AND
(4) DUPLEX AND
GROUND JACKS
IP-B-1
ISOLATED
POWER
PANEL
7.5KVA
480 TO 120V
SINGLE PHASE
ISOLATION
MONITOR AND
(4) DUPLEX AND
GROUND JACKS
IP-B-2
ISOLATED
POWER
PANEL
7.5KVA
480 TO 120V
SINGLE PHASE
ISOLATION
MONITOR AND
(4) DUPLEX AND
GROUND JACKS
300A (6)
204-ACCU-1
20A
(1) POLE
(5)
CR-UPS-LP1
UPS
1.1KVA
277V/120V
(2) #8, #8G, 3/4"C
(6)
(2) #12, #12G, 3/4"C
80A SHUNT
TRIP
BREAKER
80A SHUNT
TRIP
BREAKER
CATH LAB
EQUIPMENT
CATH LAB
EQUIPMENT
(4) #500, #2G, 4"C
2AN1-2
225A MCB
208/120V
RM. L252
UNKNOWN
2ACH2
125A MCB
480/277V
RM. L207A
2AC2
100A MCB
208/120V
RM. L207A
T-2AC2
30KVA
2AC3
250A MLO
208/120V
RM. L290
EPO
N/O
2BN1-2
225A MLO
208/120V
RM. L226
2ANH3
400A MCB
480/277V
RM. 207A
400A
2AN3-1
225A MCB
208/120V
RM. L227A
T-2AN3
75KVA
2AN3-2
250A MLO
208/120V
RM. L207A
(7) (8)
30A
(2) POLE
30A
(2) POLE
30A
(2) POLE
20A
(1) POLE
20A
(1) POLE
20A
(1) POLE
TVSS
(0)
CR-UPS-LP2
UPS
1.1KVA
277V/120V
CR-UPS-LP3
UPS
1.1KVA
277V/120V
CR-UPS-LP4
UPS
1.1KVA
277V/120V
125A
(3) POLE
SHUNT
TRIP
EPO CONTROL WIRING,
277V FROM CRITICAL
UPS, TYPICAL
EPO
N/O
(E)
(E)
TEMPORARY
CONNECTION CABINET
60A (6)
204-AHU-D
REMOTE
ANNUNCIATOR
PROVIDE CONDUIT AND WIRING FOR GEN.
START SIGNAL. CONNECT TO START SIGNAL
WIRING IN NEARBY EXISTING ATS.
COORDINATE FINAL
LOCATION WITH COR.
16.0KAISC
9.6KAISC
(2) #8, #8G, 3/4"C
PROVIDE 30A, 2 POLE
BREAKER OF THE SAME
TYPE AND INTERRUPTING
RATING AS EXISTING
Project Number
Building Number
Drawing Number
Project Title
Location
Issue Date Checked Drawn
Drawing Title
VA FORM 08 - 6231
A
FULLY SPRINKLERED
U.S. Department of Veterans Affairs
B
C
D
E
A
B
C
D
E
F
21 4 5 6 7 8 9 10
PhaseARCHITECT/ENGINEER OF RECORD STAMP
321 4 5 6 7 8 9 10
Au to de sk
D oc s:
//M t H om e
VA
C at h
La b/
FF
E_
R en ov at e C at h
La b
II_
B2
_M
EP
(2
4)
.rv t
7/
/2
2:
:4
PM
E600
PARTIAL SINGLE LINE DIAGRAM
06/12/2026 JB IA
RENOVATE BLDG 204 CATH LAB II 621-22-121
MT HOME, TENNESSEE
100% BID DOCUMENTS
MT HOME, VA
MEDICAL
CENTER Approved: Owner
NTS1 PARTIAL SINGLE LINE - BLDG 204
NOTE: ALL EQUIPMENT SHOW IS EXISTING UNLESS OTHERWISE NOTED OR INDICATED.
TRANSFER SWITCH LABELING N O T E:
A.
B.
EQUIPMENT NAMES AND IDENTIFIERS ON THIS DRAWING ARE FOR REFERENCE ONLY. ELECTRICAL CONTRACTOR SHALL FIELD VERIFY ALL CONNECTIONS. ALTHOUGH EVERY EFFORT WAS MADE TO VERIFY CONNECTIONS, EXACT VERIFICATION COULD NOT BE MADE. MANY ITERATIONS OF PROJECTS THROUGH THE YEARS HAVE LEFT ABNORMAL NAMING CONVENTIONS, DUPLICATED PANELBOARD NAMES, AND CONNECTIONS THAT COULD NOT BE VERIFIED THROUGH REVIEW OF REFERENCE DRAWINGS AND FIELD DOCUMENTATION. INCLUDE COSTS IN SCOPE TO TRACK ALL TRANSFER SWITCHES DOWN AND THEN RE-LABLED WITH LAMINATED, ENGRAVED NAMEPLATES WITH A UNIQUE NUMBER FOR THE BUILDING THE TRANSFER SWITCH IS LOCATED IN AND THE BRANCH THAT IT SERVES. THE PANELBOARDS THAT FEED THE TRANSFER SWTICHES SHOULD BE RE-LABELED WITH LAMINATED AND ENGRAVED NAMEPLATES AS WELL. FOR EXAMPLE, 204-ATS-CR-1, 204-ATS-CR-2, 204- ATS-CR-3, 204-ATS-CR-4.... 204-ATS-LS-1, 204-ATS-LS-2, 204-ATS-LS-3... FOR CR, LS, EE, AND N AS APPLICABLE.
ASSUME (2) ATS AND TWO PANELBOARDS INCLUDING UPSTREAM AND DOWNSTREAM EQUIPMENT (12 LABLES AND 12 PANEL SCHEDULES)
No. Revisions: Date:
0 100% BID DOCUMENTS 06/12/2026
1 ADDENDUM 01 06/29/2026
2 ADDENDUM 02 07/24/2026
06/12/2026
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