S06 - Att 2 RFI Medium Voltage loop.pdf
PDF 2 MB Posted
- Attached to
- 6110--676-22-122 Replace Electrical Switchgear Federal contract opportunity
- Solicitation number
- 36C25225B0007
About this file
This document is a Request for Information (RFI) regarding medium voltage electrical infrastructure during a transformer replacement at a VA Medical Center. The document raises several critical technical queries about maintaining the medium voltage electrical loop during transformer replacement, including whether the existing loop needs to be maintained, potential reuse of existing cables between transformers, and requirements for cable testing. The author suggests moving the transformer at least 3 feet away from the building, which would potentially allow reuse of existing loop wires connecting to Buildings 428 and 403/402, with new cable termination ends being installed after repulling the existing cables.
The accompanying electrical site plan and primary loop one-line diagram provide additional technical context, showing a complex electrical infrastructure with multiple transformers (T-439, T-440, T-435-1, T-435-2, etc.) serving various buildings across the VA Medical Center campus, with voltage configurations ranging from 12470V to 208V and 480V. The documents are part of a solicitation (36C25225B0007) for "Replace Electrical Switchgear" by the Department of Veterans Affairs Veterans Health Administration, specifically for Veterans Integrated Service Network 12.
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Text version
CC: Drawing/Detail # ED101 and EP101
Re: Medium Voltage loop During the time the transformer is being replaced for the boiler plant does the medium voltage loop need to be maintained?
If so, how would that be done?
Can the cables not going between the (2) existing transformers be reused? If not, please provide rough length of cable for the bid.
Are there any special tests required for the medium voltage cable?
I have attached a plan sheet from a previous project.
My thoughts on the transformer placement are the transformer. Move the transformer away from the building about least 3’ then the old loop wires running to either Building 428 or building 403/402 can be reused. New ends would have to be installed after cable is repulled because the old ends would have to be removed to get the cable in and out of the conduit.
2 3 4 5 6 7 8 9
SHEET NOTES
A. ALL LIGHTING AND POWER CONDUCTORS SHALL BE
INSTALLED BETWEEN 24" (MINIMUM) AND 36"
(MAXIMUM) BELOW FINISHED GRADE.
B. ALL COMMUNICATIONS CONDUIT AND CABLES
SHALL BE INSTALLED 36" (MINIMUM) BELOW
FINISHED GRADE.
C. ALL CONDUCTORS FOR EXTERIOR LIGHTING AND
POWER CIRCUlTS SHALL BE #10 AWG MINIMUM
UNLESS NOTED OTHERWISE.
o
Ø
A
Ø c O c e o o o c o
2 ° o o - o o C o o
C o o o o o e
O co
T °
NL1 - 3,5
2-8AWG 1-8AWG EG, 1"C ---s B414-LIFT
S3 o-.
-- 2-10AWG 1-10AWG EG, 1"C
NEW
WAREHOUSE
BUILDING 414
S3
2-10AWG 1-10AWG EG 1"C
UT - - - - - - - - -UT - -
- - * - - -UE-- - -
S3
NH1'- 5 8
2-10AWG 1-10AWG EG, 1"C -
2-10AWG 1-10AWG EG, 1"C 7- 2-10AWG 1-10AWG EG, 1"C
S30_.
2-10AWG 1-10AWG EG, 1"C
EXISTING PROPANE TANKS
UE- - -
EHH
EXISTING
BUILDING415 THH
EXISTING BUILDING423
- - - - - - -UT- - - - -
- - - - - - -UT- - -
EXISTING -
WELL HOUSE
EXISTING -x
MEDIUM
VOLTAGE
SWITCHGEAR
BUILDING
EXISTING
BUILDINGT290
LECTRICAL SITE PLAN
= 30 0"
A
@ KEYED NOTES
1 NEW ELECTRICAL SERVICE PRIMARY FROM
EXlSTING PAD MOUNTED TRANSFORMER TO NEW
PAD MOUNTED XFMR. EXTEND MEDIUM VOLTAGE
LOOP CONNECTION FROM EXISTING PAD
MOUNTEDTRANSFORMERTONEWPADMOUNTED
TRANSFORMER. REFER TO SINGLE LINE FOR
MORE INFORMATION.
2 NEW 12.47KV-480 3PH PAD MOUNTED
TRANSFORMER. REFER TO SINGLE LINE RISER -
FOR ADDITIONAL INFORMATION.
3 EXISTING SANITARY SEWER LIFT STATION AND
CONTROLLER TO REMAIN. PROVIDE NEW
UNDERGROUND BRANCH CIRCUIT AND CONDUlT
FROM NEW WAREHOUSE BUILDING 414. PROVIDE
NEW CONTROLS/MONITORING CABLE AND
CONDUlT FROM NEW WAREHOUSE BUlLDING 414.
REUSE EXISTING CONDUIT TRAVERSINGUNDER
ROADWAY AS POSSIBLE TO SERVE EQUIPMENT
FROM NEW BUILDING. REPAIR/REPLACE ALL
EXISTING CONDUiTS AND SEAL-OFF FITTINGS
THATAREDAMAGED.
B
4 PROVIDE 24-STRAND SINGLE-MODE
JNDOOR/OUTDOORRATED OFNR ALL DIELECTRIC
OUTSIDE PLANT FIBER OPTIC CABLE FROM
EQUIPMENT RACK TO EXISTING CAMPUS
TELECOM NETWORKDISTRIBUTION IN BUILDING
32 USING EXISTING CAMPUS TELECOM
DUCTBANKSAND PATHWAYS.APPROXIMATE
DISTANCE 1400 FEET. COORDINATE EXACT
ROUTING WITH THE COR.
5 EXISTING UNDERGROUND CAMPUS TELECOM
DUCTBANKSYSTEM. CONFIRM EXISTING ROUTE
PATH FOR NEW FIBER OPTIC CABLES FROM
BUILDING32.
6 PROVIDE 24-STRAND SINGLE-MODE
INDOOR/OUTDOOR RATED OFNR ALL DIELECTRIC
OUTSIDE PLANT FIBER OPTIC CABLE FROM
EQUIPMENT RACK TO EXISTING CAMPUS
TELECOM NETWORK DISTRIBUTION IN BUILDING
32 USING NEW AND EXISTING CAMPUS TELECOM
DUCTBANKS AND PATHWAYS. APPROXIMATE
DISTANCE 2000 FEET. COORDINATE EXACT
ROUTING WITH THE COR.
C
7 NEW 2-4" CONCRETE ENCASED DUCTBANK FROM
TELECOM ROOM TO EXISTING
MANHOLE/HANDHOLE. PROVIDE 3-1" INNERDUCTS
IN EACH CONDUIT PATHWAY.
8 NEW ELECTRICAL HANDHOLE. 2'-0" X 2'-0" X 2'-0".
9 NEW TELECOM HANDHOLE. 4'-0" X 4'-0" X 4 0".
10 EXISTING GENERATOR TO REMAIN. PROTECT
FOUNDATION DURING DUCTBANK EXCAVATION.
11 EXISTlNG 12.47KV-480V 3PH PAD MOUNTED
TRANSFORMERSERVING BUILDING 415.
12 EXISTING UNDERGROUND MEDIUM VOLTAGE
LOOP.
13 EXISTING MEDlUM VOLTAGE MANHOLE/HANDHOLE
14 ELECTRICAL SECONDARYCONDUCTOR
DUCTBANK. REFER TO SINGLE LINE FOR MORE
INFORMATION.
15 EXISTING TELECOM HANDHOLE. COORDINATE
EXACT ROUTING WITH THE COR.
NEW WAREHOUSE 414
BOlLER PL NT 1r
BUILDING415
EXISTING BUILDING 32 --- ---
CAMPUS DISTRIBUTION
MAIN CROSS-CONNECT e
N TRUE
ELECTRICAL SITE KEY PLAN
°ª™
1" =400'-0"
TRUE
NORTH
100% CONSTRUCTION DOCUMENTS
No. Description Date CONSULTANTS: ARCHITECT / ENGINEERS: PªwingMe PrOjeCt Title PrOjeCtNumber
STRUCTURAL MECHANICAL/PLUMBING ELECTRICAL I /
LARSON ENGINEERING. INC. RING & DUCHATEAU APOGEE CONSULTING GROUP C, C ON
3333 N. MAYFAIR RD. SUITE 211 17400 WEST CAPITOL DRIVE 1151 KILDAIRE FARM ROAD SUITE 120 .-
Building NUmber
15 WAUWATOSA, WI 53222 BROOKFIELD, WI 53045 CARY, NC 27511
WA RæOUS E ( D) B 4, 4 VAMC
------- - 414.231.9192 JOHN K
o O ApprOved PrOjeCt DireCtOr LOCatiOn Drawing Number
CIVIL ENVIRONMENTAL MANAGEMENT CONSULTING E-4387
. 500 E VETERANS STREET, TOMAH, Wl 54660 ANDERSON ENGINEERING OF MINNESOTA THE SIGMA GROUP RALE|GH architects + en g in eers o £ .
13605 1ST AVE N #100 1300 W CANAL ST #200 ', ,.O N
ES 10 1
0 2 PLYMOUTH, MN MILWAUKEE, WI 53233 . 13100 watertown plank road Date CheCked By Drawn By
763-412-4000 414.643.4200 ... suite 200 Department of elm grove, wi 53122 Nagel ArChiteCts + Engineers prOjeCt number: 16042 08/01 /2017 JKM DBW Veterans Affairs
1 2 3 4 5 6 7 8 9
NORTH TOMAH SUB TOMAH INDUSTRIAL PARK SUB
MAIN SWGR EASTMAIN SWGR WEST
1200 BUS1200 BUS
#1/0
SW-438 S-1
T-438 PRI
SW-438 S-2
#1/0
SW-437 S-1
SW-437
SW-437 S-2
#1/0
T-436 PRI
SW 436-2
T-438 MAIN
ELSP
125 A
S
P T-438
500.0 kVA 12470 V - 208 V Z% 5.4000 %
T-438 SEC
SW-437 T-1 SW-437 T-2
#1/0
SW-441 S-1
T-441 PRI
SW-441 S-2
T-441 MAIN
ELSP
100 A
S
P T-441 300 kVA 12470 V - 208 V Z% 4.0000 %
T-441 Sec
#1/0
SW-442 S-1
SW-442
SW-442 T-2 SW-442 T-1 SW-442 T-3
#1/0
T-443 MAIN
ELS
40 A
T-443 Pri
S
P T-443
75.0 kVA
Z% 1.9000 %
T-443 Sec
#1/0 #1/0
T-449 MAIN
ELSP
80 A
T-449 Pri
S
P T-449
150.0 kVA
Z% 3.9000 %
T-449 Sec
SW-439 S-1
T-439 PRI
SW-439 S-2
#1/0
SW-440 S-1
T-440 PRI
S
P T-439-1
225.0 kVA 12470 V - 208 V Z% 3.4000 %
T-439 SEC
T-440 MAIN
ELS
80 A
S
P T-440
150.0 kVA 12470 V - 208 V Z% 2.0000 %
T-440 SEC
T-436 MAIN
ELSP
125 A
S
P T-436
500.0 kVA
Z% 3.7000 %
T-436 Sec
#1/0
SW 434-1 S-1
T-434-1 PRI
T-434-1 MAIN
ELSP
150 A
S
P T-434-1 750 kVA 12470 V - 480 V Z% 5.0%
T-434-1 SEC
SW 434-1 S-2
T-438 BAY-O-NET
353C12 40 A
T-441 BAY-O-NET
353C8 25 A
T-443 BAY-O-NET
358C5 8 A
T-449 BAY-O-NET
358C8 15 A
T-440 BAY-O-NET
358C8 15 A
T-436 BAY-O-NET
40 A
T-434-1 BAY-O-NET
353C16 65 A
SW 436-1
52M2
150 VCP-W-500
52F2
150 VCP-W-500
CPT MAIN
7 A
S
P CPT
25.0 kVA 12470 V - 240 V Z% 2.0809 %
CBS
#10
CPT SEC
AC LOAD CENTER
52M1
150 VCP-W-500
52F1
150 VCP-W-500
52F3
150 VCP-W-500
TOMAH INDUSTRIAL PARK FUSE
T-Tin, 140T 140 A
NORTH TOMAH FUSE
T-Tin, 140T 140 A
T-439-1 MAIN
ELSP
100 A
T-439-1 BAY-O-NET
353C10 25 A
12470 V - 208 V 12470 V - 208 V
12470 V - 480 V
MSB LOAD CENTER
MSB LOAD CENTER WELL HOUSE
MSB - 480
MSB - 480
MSB - 208 LOAD CENTER MDP - 208
BLDG 428 BLDG 428
125A
BLDG 428
BLDG 416
BLDG 402
BLDG 400
BLDG 40BLDG 33
BLDG 240A BLDG 210 BLDG 3
SW-435-1 S-1
T-435-1 PRI
T-435-1 BAY-O-NET
353C10 25 A
T-435-1
300.0 kVA 12470 V - 208 V Z% 5.2000 %
T-435-1 SEC
SW-435-1 S-2
#1/0
SW-435-2 S-1
T-435-2 PRI
T-435-2 BAY-O-NET
358C16 100 A
T-435-2
750.0 kVA 12470 V - 480 V Z% 5.6000 %
T-435-2 SEC
SW-435-2 S-2
#1/0
SW-432-1 S-1
T-432-1 PRI
T-432-1 MAIN
ELSP
125 A
T-432-1
500.0 kVA 12470 V - 208 V Z% 5.4000 %
T-432 SEC
SW-432-1 S-2
#1/0 #1/0
SW-431-4 S-1
T-431-4 PRI
T-431-4 BAY-O-NET
353C12 40 A
T-431-4
500.0 kVA
Z% 5.0 %
T-431-4 Sec
SW-431-4 S-2
#1/0
SW-431-3 S-1
T-431-3 PRI
T-431-3 BAY-O-NET
353C16 65 A
T-431-3 750 kVA
Z% 5.0 %
T-431-3 Sec
SW-431-3 S-2SW-431-2 S-1
T-431-2 PRI
T-431-2
500.0 kVA 12470 V - 480 V Z% 5.7000 %
T-431-2 Sec
SW-431-2 S-2
#1/0
SW-430-1 S-1
T-430-1 PRI
T-430-1 BAY-O-NET
353C10 25 A
T-430-1
300.0 kVA
Z% 5.1000 %
T-430-1 Sec
SW-430-1 S-2
#1/0
SW-430-2 S-1
T-430-2 PRI
T-430-2
500.0 kVA
Z% 5.6000 %
T-430-2 Sec
SW-430-2 S-2
#1/0
SW-429 S-1
T-429 PRI
T-429 BAY-O-NET
353C10 25 A
S
P T-429
300.0 kVA
Z% 5.2000 %
T-429 Sec
SW-429 S-2
T-435-1 MAIN
ELSP
100 A
T-435-2 MAIN A
ELSP
100 A
T-432-1 BAY-O-NET
353C12 40 A
T-431-4 MAIN
ELSP
125 A
T-431-3 MAIN
ELSP
150 A
T-431-2 MAIN
ELX, 40C
40 A
T-430-1 MAIN
ELSP
100 A
T-430-2 MAIN
ELX, 40C
40 A
T-429 MAIN
ELSP
100 A
T-435-2 MAIN B
ELSP
100 A
12470 V - 208 V12470 V - 208 V12470 V - 208 V
12470 V - 480 V
12470 V - 480 V
MSB - 480
MSB - 208
MSB - 208MSB - 208MSB - 208
MSB - 480
MSB - 208
MSB - 480
MSB - 480
BLDG 407/408
BLDG 407/408
BLDG 405CLC ECBBLDG 404BLDG 403/402BLDG 403/402BLDG 415 BLDG 424
S
P
S
P
S
P
S
P
S
P
S
P
S
P
S
P
S
P
#1/0
#1/0
SW-450 S-1
SW-450
SW-450 S-2
SW-450 T-1
SW-450 T-2
SW-450 T-1 LA
SW-450 T-2 LA
#1/0
#1/0 #1/0 #1/0
SW-434-4 S-1
T-434-4 PRI
T-434-4 MAIN
ELSP
125 A
S
P T-434-4
500.0 kVA Pri 12470 V - 208 V Z% 4.2000 %
T-434-4 SEC
T-434-4 BAY-O-NET
353C12 40 A
MSB - 208
BLDG 400
SW-434-5 S-1
T-434-5 PRI
S
P T-434-5
300.0 kVA 12470 V - 480 V Z% 5.1000 %
T-434-5 SEC
T-434-5 MAIN
ELSP
100 A
T-434-5 BAY-O-NET
353C10 25 A
CHILLER POWER
BLDG 400
SW-434-5 S-2
B-15 / B-18 B-240A B-5 B-6
STREET LIGHTS
B-1 B-2 B-210 B-223
B-3 B-10 B-212 B-215 B-427
B-23 B-25 B-32 / B-33 B-280
B-40
B-36
LOOP TIE SWITCH
SW-433-2 S-1
T-433-2 PRI
T-433-2 MAIN
ELSP
125 A
T-433-2
500.0 kVA 12470 V - 480 V Z% 3.9000 %
T-433-2 SEC
SW-433-2 S-2
#1/0
SW-433-3 S-1
T-433-3 PRI
T-433-3 BAY-O-NET
353C16 65 A
T-433-3 750 kVA 12470 V - 208 V Z% 5.0 %
T-433-3 Sec
SW-433-3 S-2
#1/0
SW-433-1 S-1
T-433-1 PRI
T-433-1 BAY-O-NET
353C12 40 A
T-433-1
500.0 kVA
Z% 5.5000 %
T-433-1 Sec
SW-433-1 S-2
#1/0
SW-432-2 S-1
T-432-2 PRI
T-432-2 BAY-O-NET
353C10 25 A
T-432-2 300 kVA
Z% 5.0 %
T-432-2 Sec
SW-432-2 S-2
T-433-2 BAY-O-NET
353C12 40 A
T-433-3 MAIN
ELSP
150 A
T-433-1 MAIN
ELSP
125 A
T-432-2 MAIN
ELSP
100 A
12470 V - 208 V12470 V - 208 V
MSB - 480MSB - 208MSB - 208
BLDG 401BLDG 406BLDG 455 BLDG 406
S
P
S
P
S
P
S
P
#1/0
MSB - 208
SW-431-1 S-1
T-431-1 PRI
T-431-1 BAY-O-NET
353C10 25 A
T-431-1
225.0 kVA
Z% 3.8001 %
T-431-1 Sec
SW-431-1 S-2
T-431-1 MAIN
ELSP
100 A
12470 V - 208 V
MSB - 208
BLDG 404
B-409 B-410 B-411 B-412
LIFT STATION
T-444 MAIN
ELSP
125 A
T-444 Pri
S
P T-444 500 kVA
Z% 5.0 %
T-444 Sec
T-444 BAY-O-NET
358C12 40 A
12470 V - 208 V
SOUTH SIDE ECB
B-290
#1/0
353C12
PRIMARY LOOP ONE-LINE
CRK ECB
11/23/2016
ARHCRKALL
VA Medical Center, Tomah WI
TOMAH VA MEDICAL CENTER
500 E. VETERANS ST.
TOMAH, WI.
54660
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