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
Issued by
Department of Veterans Affairs Veterans Health Administration Veterans Integrated Service Network 12

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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