Atch 3_Drawings_APHIS MAB 6414 Electrical Upgrades_80 percent.pdf
PDF 481 KB Posted
- Attached to
- Moore Air Base Building 6414 Electrical Upgrades - Phase 1 Federal contract opportunity
- Solicitation number
- 12639524R0040
About this file
This document appears to be a set of construction drawings and technical specifications for electrical upgrades to Building 6414 at the Moore Air Base in Edinburg, Texas. The project is being procured by the U.S. Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS) under Solicitation Number 12639524R0040.
The project will be completed in two phases. Phase 1, covered by these documents, includes the replacement of the main service transformer, exterior main switchboard, and automatic transfer switch to back-feed the existing switchboard. The scope also includes all the work defined in the drawings and specifications, such as demolition of existing equipment, installation of new conduits and feeders, and replacement of distribution panels and transformers throughout the facility. The project is intended to address the aging and deteriorating condition of the existing electrical infrastructure at the building.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| RFIs and Responses.docx | DOCX document | |
| Sign in Sheet MAB Elect. Switch Upgrade 9-10-24.pdf | ||
| Atch 3_Drawings_B6414 Electrical Upgrades_100 percent_amendment 0001.pdf | ||
| 12639524R0040-0001.pdf | ||
| Atch 2_Specs_B6414 Electrical Upgrades_100 percent_amendment 0001.pdf | ||
| Atch 2_Specs_APHIS MAB 6414 Electrical Upgrades_80 percent.pdf | ||
| 12639524R0040.pdf | ||
| Atch 4_Federal Construction Wage Rates_Hidalgo County.pdf | ||
| Atch 1_SOW for MAB Bldg 6414 Electrical Upgrades August2024.doc | DOC document |
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Text version
ABBREVIATIONS
LETTER NAME
SYMBOLS LEGEND
SYMBOL DESCRIPTION
Ø PHASE
A ABOVE COUNTER / AMPERE
AFF ABOVE FINISHED FLOOR
BFC BELOW FINISHED CEILING
AL ALUMINUM
AMP AMPERE
ATS AUTOMATIC TRANSFER SWITCH
AWG AMERICAN WIRE GAUGE
BLDG BUILDING
BOD BOTTOM OF DEVICE
CB CIRCUIT BREAKER
CKT CIRCUIT
CLK CLOCK
COD CENTER OF DEVICE
CO CONDUIT ONLY
COMM COMMUNICATIONS
CT CURRENT TRANSFORMER
CU COPPER
DIA DIAMETER
DISC DISCONNECT
DN DOWN
DW DISHWASHER
E EXISTING TO REMAIN
EA EACH
EGC EQUIPMENT GROUNDING CONDUCTOR
ELEC ELECTRIC
ELEV ELEVATION
EMT ELECTRICAL METALLIC CONDUIT
ENCL ENCLOSURE
EQPM EQUIPMENT
ER EXISTING TO BE REMOVED
EXP EXPLOSION PROOF
EXST EXISTING
FA FIRE ALARM
FDR FEEDER
FLA FULL LOAD AMPERES
FO FIBER OPTIC
G GROUND FAULT CIRCUIT INTERRUPT/GROUND
GALV GALVANIZED
GEN GENERATOR
GFP GROUND FAULT PROTECTION
GND GROUND
HH HANDHOLE
HP HORSEPOWER
HZ HERTZ (CYCLES PER SECOND)
IC INTERRUPTING CAPACITY
IG ISOLATED GROUND
IN INCH / INCHES
JBOX JUNCTION BOX
KVA KILO-VOLT-AMPERE
KW KILOWATT
LC LIGHTING CONTROL
MAX MAXIMUM
MCC MOTOR CONTROL CENTER
MECH MECHANICAL
MFR MANUFACTURER
MGB MASTER GROUND BAR
MH MANHOLE
MIN MINIMUM
MTD MOUNTED
MW MICROWAVE
N NEUTRAL
NC NORMALLY CLOSED
NEC NATIONAL ELECTRIC CODE
NEMA NATIONAL EQUIP. MANUFACTURER'S ASSOC.
NEUT NEUTRAL
NIC NOT IN CONTRACT
NL NIGHT LIGHT
NO NORMALLY OPEN
NTS NOT TO SCALE
OC ON CENTER
OL OVERLOAD
PB PULL BOX
PKG PACKAGE
PNL PANEL
PR PAIR
PWR POWER
R EXISTING TO BE RELOCATED
RCPT RECEPTACLE
REF REFRIGERATOR
REV REVISION
RM ROOM
SHT SHEET
SIM SIMILAR
SPD SURGE PROTECTIVE DEVICE
SPKR SPEAKER
STBY STANDBY
STD STANDARD
SW SWITCH
SWBD SWITCHBOARD
SWGR SWITCHGEAR
SYS SYSTEM
TBB TELEPHONE BONDING BACKBONE
TC TIME CLOCK
TEL TELEPHONE
THRU THROUGH
TOD TOP OF DEVICE
TGB TELECOMMUNICATIONS GROUND BAR
TMGB TELECOMMUNICATIONS MAIN GROUND BAR
TV TELEVISION
TYP TYPICAL
UG UNDERGROUND
UH UNIT HEATER
UPS UNINTERRUPTIBLE POWER SUPPLY
VFY VERIFY
VFD VARIABLE FREQUENCY DRIVE
VR VANDAL RESISTANT
WP WEATHERPROOF
XFMR TRANSFORMER
Z IMPEDANCE
GENERAL
SHEET NOTE
RACEWAY CONCEALED IN WALL/CEILING
CONDUIT UP,VERTICAL TRANSITION
CONDUIT DOWN,VERTICAL TRANSITION
CONDUIT CAPPED
HOME RUN
X = PANELBOARD
# =BRANCH CIRCUIT NUMBER(S)
JUNCTION BOX
X:#
T
J
POWER
EQUIPMENT CONNECTION
DISCONNECT SWITCH
FUSED DISCONNECT SWITCH
PANELBOARD
TRANSFORMER
HANDHOLEHH
THE FOLLOWING GENERAL NOTES APPLY TO ALL DRAWINGS
1. ELECTRICAL CONTRACTOR SHALL COORDINATE WORK WITH OTHER TRADES.
2. ALL MATERIALS SHALL BE NEW AND SHALL BE LISTED BY UNDERWRITER'S LABORATORIES, INC.
3. SEAL ALL PENETRATIONS IN RATED WALLS, FLOORS AND CEILINGS WITH A UL APPROVED FIRE STOP
SYSTEM.
4. PROVIDE A 220 LB NYLON JET PULL STRING IN ALL EMPTY RACEWAYS.
5. THE INSTALLATION SHALL COMPLY WITH THE CURRENT EDITION OF THE NATIONAL ELECTRICAL CODE (NEC), THE STATE OF WASHINGTON ADMINISTRATIVE CODE, THE AUTHORITY HAVING JURISDICTION, AND UTILITY REQUIREMENTS.
6. THE CONTRACTOR SHALL ENSURE THAT THE ENTIRE ELECTRICAL SYSTEM FOR THIS BUILDING IS GROUNDED IN ACCORDANCE WITH ALL APPLICABLE PROVISIONS OF ARTICLE 250 OF THE N.E.C.
7. WORKING SPACE ABOUT ELECTRICAL PANELS, SWITCHGEAR, ETC SHALL COMPLY WITH NEC.
8. PROVIDE EQUIPMENT LABELS FOR DISCONNECT SWITCHES, WIRING TROUGHS, ETC. TO IDENTIFY EQUIPMENT OR EQUIPMENT SERVED. LABELS SHALL BE 1/8" THICK OF PHENOLIC MATERIAL, MACHINE
ENGRAVED TO EXPOSE CONTRASTING INNER CORE.
9. ELECTRICAL CONTRACTOR SHALL PAY ALL UTILITY CONNECTION CHARGES.
10. ELECTRICAL CONTRACTOR SHALL ARRANGE ALL INSPECTIONS AND PAY ALL FEES. SUBMIT COPY OF
FINAL INSPECTION REPORT TO THE OWNER.
11. NOT ALL LEGEND AND ABBREVIATIONS ARE NECESSARY OR REQUIRED FOR THIS DRAWING SET.
12. WHERE A CONFLICT EXISTS WITHIN THE DOCUMENTS, THE MOST EXPENSIVE OPTION SHALL GOVERN.
13. ELECTRICAL CONTRACTOR MAY TOUR THE PROJECT SITE PRIOR TO BID TO ASSESS EXISTING CONDITIONS, WHICH MAY AFFECT HIS BID. LATER CLAIMS FOR WORK THAT WAS EVIDENT WILL NOT BE
ALLOWED.
14. NO STRUCTURAL MEMBERS SHALL BE CUT OR ALTERED WITHOUT PRIOR APPROVAL OF THE OWNER
AND STRUCTURAL ENGINEER.
GENERAL NOTES
THE FOLLOWING GENERAL NOTES APPLY TO ALL DRAWINGS
1. DRAWINGS ARE DIAGRAMMATIC IN NATURE. THE CONTRACTOR SHALL PROVIDE ALL REQUIRED
RACEWAYS AND WIRING, INCLUDING PULL BOXES AS REQUIRED BY NEC.
2. GENERAL:
2.1. MINIMUM RACEWAY SIZE SHALL BE 3/4", 1" FOR UNDERGROUND CONDUIT.
2.2. PROVIDE A GROUND CONDUCTOR IN ALL RACEWAYS.
2.3. PROVIDE A DEDICATED NEUTRAL CONDUCTOR FOR EACH BRANCH CIRCUIT.
BRANCH CIRCUIT WIRING
DEMOLITION PLANS
THE FOLLOWING GENERAL NOTES APPLY TO ALL DEMOLITION PLAN DRAWINGS
1. REMOVE ALL ELECTRICAL DISTRIBUTION EQUIPMENT, RACEWAYS, AND CONDUCTORS AS SHOWN ON
THE DEMO ONE-LINE DIAGRAM.
2. REMOVE ALL TEMPORARY WORK INSTALLED DURING THE COURSE OF CONSTRUCTION.
3. THE ELECTRICAL CONTRACTOR SHALL COORDINATE THE REMOVAL OF THE EXISTING ELECTRICAL
EQUIPMENT WITH THE OWNER AND SERVING UTILITY. THE ELECTRICAL CONTRACTOR SHALL
DISCONNECT AND REMOVE ALL PANELS AND SWITCHBOARDS AND SHALL VERIFY ALL POWER IS DEAD
IN AREAS BEFORE THE DEMOLITION BEGINS.
4. ALL CONDUCTORS WILL BE REMOVED FROM ABANDONED CONDUITS.
5. ALL ABANDONED WALL BOXES OR WALL PENETRATIONS SHALL BE FILLED IN TO MATCH EXISTING
WALLS.
6. ALL EXISTING ELECTRICAL EQUIPMENT REMOVED SHALL REMAIN THE PROPERTY OF THE OWNER AND
SHALL BE STORED OR REMOVED FROM SITE AS DIRECTED.
7. WHERE THE PHRASE "EXTENDED WIRING" IS USED IT REQUIRES THE REMOVAL OF EXISTING WIRING, THE EXTENSION OF THE CONDUIT RUN AND THE PULLING IN OF NEW WIRING TO THE SPECIFIED PANEL.
8. ALL EXPOSED ELECTRICAL CONDUIT, WIRE, DEVICES, EQUIPMENT ETC., THAT ARE TO BE ABANDONED, SHALL BE REMOVED TO THE POINT OF CONCEALMENT.
9. EXISTING CONDUIT MAY BE REUSED IF IN GOOD CONDITION. CONTRACTOR TO VERIFY CONDITION OF
CONDUIT WHERE POSSIBLE. REUSED CONDUIT SHALL HAVE A SWAB PULLED PRIOR TO NEW
CONDUCTORS BEING INSTALLED.
10. EVERY EFFORT HAS BEEN MADE TO COORDINATE EXISTING ELECTRICAL INFORMATION, WHETHER EXISTING TO REMAIN OR BE REMOVED WITH BOTH AS-BUILT DRAWINGS AND SITE OBSERVATIONS.
AS-BUILT DRAWINGS ARE INCLUDED FOR REFERENCE ONLY TO ASSIST WITH BID AND CONSTRUCTION.
HOWEVER, DISCREPANCIES MAY EXIST BETWEEN ACTUAL AND SHOWN CONDITIONS AND ELECTRICAL
WORK. THE ELECTRICAL CONTRACTOR SHOULD EXPECT MINOR DEVIATIONS TO OCCUR AND IS
EXPECTED TO WORK THROUGH THEM WITH ASSISTANCE FROM BUILDING OWNER AND ELECTRICAL
ENGINEER.
THE FOLLOWING GENERAL NOTES APPLY TO ALL SITE PLAN DRAWINGS
1. COORDINATE ROUTING OF UNDERGROUND RACEWAYS WITH ALL NEW AND EXISTING UTILITIES.
2. CONTRACT WITH A LOCATOR SERVICE TO MARK THE LOCATION OF ALL EXISTING UNDERGROUND
UTILITIES PRIOR TO EXCAVATION.
3. PROVIDE ALL REQUIRED CUTTING, PATCHING, EXCAVATION, COMPACTION, AND PATCHING FOR
INSTALLATION OF UNDERGROUND RACEWAYS AND UTILITY SERVICES.
4. BACKFILL ALL TRENCHES (INCLUDING THOSE FOR UTILITY SERVICES) WITH STRUCTURAL BACKFILL OR
GRAVEL BORROW PER UTILITY SPECIFICATIONS AND WSDOT STANDARDS.
5. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR ALL COORDINATION WITH THE SERVING UTILITY COMPANIES INCLUDING COMPLETING AND SUBMITTING ALL NECESSARY APPLICATIONS FOR SERVICE.
6. CONTRACTOR TO OBTAIN ALL REQUIRED PERMITS AND EASEMENTS.
SITE PLANS
1. PROVIDE PULL BOXES AS REQUIRED BY THE NEC.
2. THE ONE-LINE DIAGRAM IS DIAGRAMMATIC AND DOES NOT SHOW THE ACTUAL ROUTING
OFTHE RACEWAYS.
3. THE ELECTRICAL DISTRIBUTION SECTION SHALL BE FULLY RATED. A SERIES RATED
SYSTEM IS NOT ACCEPTABLE.
4. NOT ALL CIRCUIT BREAKERS ARE SHOWN. REFER TO PHYSICAL PANELS AND
SWITCHBOARDS FOR OTHER LOADS SERVED, AND SPARE CIRCUIT BREAKERS.
ONE-LINE DIAGRAM
(E) - EXISTING TO REMAIN, SHOWN AS LIGHT
(ER) - EXISTING TO BE RELOCATED, SHOWN AS DASHED AND BOLD
(D) - DEMO, SHOWN AS DASHED AND BOLD
(N) - NEW WORK, SHOWN BOLD
LEGEND
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
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221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
MBV
SLP
SYMBOLS, NOTES,
AND SHEET INDEX
E001
SHEET INDEX
SHEET NUMBER SHEET TITLE
Electrical
E001 SYMBOLS, NOTES, AND SHEET INDEX
E101 ELECTRICAL SITE PLAN
E201 OVERALL ELECTRICAL FIRST FLOOR PLAN
E202 OVERALL ELECTRICAL INTERSTITIAL FLOOR PLAN
ED401 ENLARGED SITE PLAN - EQUIPMENT YARD DEMOLITION
E401 ENLARGED SITE PLAN - EQUIPMENT YARD
ED601 ONE LINE DIAGRAM - DEMOLITION
E601 ONE-LINE DIAGRAM
Sol #12639524R0040, Attachment 3
(E) BLDG 6414
A2
ED401
T
(E) MV SWITCH
(E) COMM HH
(D) 1500KVA XFMR
BLDG 6414
(D) 4"C; 3#4/0, 15KV
(E) 2-4"C; SPARE
T
(N) 1500KVA XFMR
BLDG 6414 (OFCI)
A2 E401
(N) XFMR PAD 3
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
P:
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/15 /24 www.coffman.com ph 509.328.2994
221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
SCALE:A2 ELECTRICAL SITE PLAN
1" = 10'-0" NORTH
MBV
SLP
ELECTRICAL SITE
PLAN
E101
1. ALL WORK SHALL COMPLY WITH THE CURRENT NEC AS ADOPTED BY THE STATE OF
TEXAS OR LOCAL AUTHORITY HAVING JURISDICTION.
2. PRIOR TO SAW CUTTING OR CORE DRILLING, PROVIDE X-RAY OR SIMILAR LOCATE
TECHNOLOGY TO VERIFY LOCATION OF EXISTING REBAR AND CONDUIT. CONTRACTOR
WILL BE RESPONSIBLE TO REPAIR ANY DAMAGE TO EXISTING UNDERGROUND UTILITIES
CAUSED BY DEMOLITION ACTIVITIES.
3. REFER TO SINGLE LINES ED601 AND E601 FOR ADDITIONAL REQUIREMENTS.
GENERAL NOTES
1. EXISTING TRANSFORMER TO REMAIN ACTIVE DURING CONSTRUCTION. DEMO EXISTING
TRANSFORMER ONLY AFTER NEW WORK IS COMPLETE AND THE NEW TRANSFORMER HAS
BEEN ENERGIZED. REFER TO ONE-LINE ED601 FOR ADDITIONAL REQUIREMENTS.
2. CONTRACTOR TO INSTALL NEW OWNER FURNISHED TRANSFORMER.
3. NEW TRANSFORMER PAD TO BE PROVIDED PER APHIS SPECIFICATIONS. COORDINATE
LOCATION WITH EXISTING PRIMARY CONDUITS.
4. COORDINATE PHASING OF ALL WORK TO MINIMIZE FACILITY DOWN-TIME ACCORDING TO
PROJECT PHASING NARRATIVE. TRANSFERRING MEDIUM VOLTAGE SWITCH TO NEW
TRANSFORMER TO BE COMPLETED ONLY AFTER INSPECTION AND APPROVAL OF NEW
WORK, BY OWNER'S REP.
SHEET NOTES-
PROJECT PHASING TO BE COMPLETED TO MINIMIZE FACILITY DOWN-TIME. ALL OUTAGES TO BE
SCHEDULED WITH THE OWNER A MINIMUM OF 2 WEEKS IN ADVANCE AND OCCUR ON SATURDAY
MORNINGS.
INSTALL NEW MEDIUM VOLTAGE TRANSFORMER, NEW SWITCHBOARD, NEW ATS, AND
ASSOCIATED FEEDERS PRIOR TO DISCONNECTION OF EXISTING EQUIPMENT. BACK-FEED
EXISTING SWITCHBOARD WHILE ENERGIZING NEW SERVICE TRANSFORMER AND SWITCHBOARD.
CONTRACTOR PROJECT PHASING PLAN AND PROJECTED SCHEDULE, TO BE REVIEWED AND
APPROVED BY OWNER AND ENGINEER PRIOR TO COMMENCEMENT OF CONSTRUCTION
ACTIVITIES.
PROJECT PHASING NARRATIVE
(E) GENERATOR
800 KW
277/480V
(E) CHILLER
(D) MV XFMR
1500KVA
15KV TO 480/277V
BUS
MB 1,600A
480/277V
MECH PIPING
(E) CHILLER DISC
480V/3P/400A NEMA 3R
(D) ATS
1200A 4P
NEMA 3R
(D) OVERHEAD
CONDUIT
DIST
SEC 1
DIST
SEC 4
DIST
SEC 5
TO MV
SWITCH
(D) (D)
(E) MAIN SWBD 4
(D) WP
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
P:
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/15 /24 www.coffman.com ph 509.328.2994
221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
1. ALL WORK SHALL COMPLY WITH THE CURRENT NEC AS ADOPTED BY THE STATE OF
TEXAS OR LOCAL AUTHORITY HAVING JURISDICTION.
2. FOR UNDERGROUND FEEDERS TO BE REMOVED, CONTRACTOR TO REMOVE ALL
CONDUCTORS AND ABANDON CONCEALED CONDUIT IN PLACE. DEMO CONDUIT STUB-UP
BACK TO MINIMUM 6" BELOW GRADE AND PATCH OR REPLACE FINISHED GRADE TO
EXISTING CONDITIONS.
3. REFER TO SINGLE LINES ED601 AND E601 FOR ADDITIONAL REQUIREMENTS.
4. PRIOR TO SAW CUTTING OR CORE DRILLING, PROVIDE X-RAY OR SIMILAR LOCATE
TECHNOLOGY TO VERIFY LOCATION OF EXISTING REBAR AND CONDUIT. CONTRACTOR
WILL BE RESPONSIBLE TO REPAIR ANY DAMAGE TO EXISTING UNDERGROUND UTILITIES
CAUSED BY DEMOLITION ACTIVITIES.
GENERAL NOTES
1. EXISTING TRANSFORMER TO REMAIN ACTIVE DURING CONSTRUCTION. DEMO EXISTING
TRANSFORMER ONLY AFTER NEW WORK IS COMPLETE AND THE NEW TRANSFORMER HAS
BEEN ENERGIZED.
2. DEMO EXTERIOR WIRING DEVICE AND ASSOCIATED CONDUITS AND WIRE BACK TO SOURCE
OR NEAREST REMAINING DEVICE. PATCH AND SEAL PENETRATION.
3. EXISTING ATS TO BE REMOVED ONLY AFTER NEW WORK IS COMPLETE, NEW SERVICE
TRANSFORMER HAS BEEN ENERGIZED AND NEW ATS AND RACEWAY ARE COMPLETE.
REPLACE ATS WITH NEMA 3R JUNCTION BOX FOR GENERATOR CONNECTION TO NEW ATS.
4. EXISTING MAIN SWITCHBOARD TO BE BACK-FED FROM NEW EXTERIOR MAIN SERVICE
SWITCHBOARD 'MSB-1'. INSTALL NEW FEEDER PER ONE-LINE E601 BEFORE TRANSFERRING
POWER. ENERGIZE NEW TRANSFORMER AND MSB-1 SIMULTANEOUS TO BACK-FEEDING
EXISTING EQUIPMENT TO MINIMIZE DOWNTIME.
SHEET NOTES-
MBV
SLP
ENLARGED SITE PLAN
- EQUIPMENT YARD
DEMOLITION
ED401SCALE:A2 ENLARGED SITE PLAN - EQUIPMENT YARD DEMOLITION
1/4" = 1'-0" NORTH
PROJECT PHASING TO BE COMPLETED TO MINIMIZE FACILITY DOWN-TIME. ALL OUTAGES TO BE
SCHEDULED WITH THE OWNER A MINIMUM OF 2 WEEKS IN ADVANCE AND OCCUR ON SATURDAY
MORNINGS.
INSTALL NEW MEDIUM VOLTAGE TRANSFORMER, NEW SWITCHBOARD, NEW ATS, AND
ASSOCIATED FEEDERS PRIOR TO DISCONNECTION OF EXISTING EQUIPMENT. BACK-FEED
EXISTING SWITCHBOARD WHILE ENERGIZING NEW SERVICE TRANSFORMER AND SWITCHBOARD.
CONTRACTOR PROJECT PHASING PLAN AND PROJECTED SCHEDULE, TO BE REVIEWED AND
APPROVED BY OWNER AND ENGINEER PRIOR TO COMMENCEMENT OF CONSTRUCTION
(E) GENERATOR
800 KW
277/480V
(E) CHILLER
BUS
MB 1,600A
480/277V
MECH PIPING
(E) CHILLER DISC
480V/3P/400A NEMA 3R
DIST
SEC 1
DIST
SEC 4
DIST
SEC 5
(E) MAIN SWBD
(N) MV XFMR
1500KVA
15KV TO
480/277V
(OFCI)
(N) MSB-1
(N) J-BOX
(N) 2000A GEN ATS
NEC 702 480Y/277V
4-POLE NEMA 3R
(N) XFMR PAD 3
3" (TYP)
SAND ENVELOPE PROVIDE CONDUITS
SIZE AND QUANTITY AS
INDICATED ON PLANS
3" (T
YP
" M
IN 18
FINISHED GRADE/PAVEMENT WARNING TAPE WITH METALLIC TRACER
LABELED "ELECTRICAL BURIED BELOW"
(LENGTH OF TRENCH)
UNDISTURBED SOIL
3" C
LE
AR
(T
YP
STRUCTURALLY COMPACTED
IN-ORGANIC FILL
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
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LO
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DA
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: 8
/15 /24 www.coffman.com ph 509.328.2994
221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
1. ALL WORK SHALL COMPLY WITH THE CURRENT NEC AS ADOPTED BY THE STATE OF
TEXAS OR LOCAL AUTHORITY HAVING JURISDICTION.
2. PRIOR TO SAW CUTTING OR CORE DRILLING, PROVIDE X-RAY OR SIMILAR LOCATE
TECHNOLOGY TO VERIFY LOCATION OF EXISTING REBAR AND CONDUIT. CONTRACTOR
WILL BE RESPONSIBLE TO REPAIR ANY DAMAGE TO EXISTING UNDERGROUND UTILITIES
CAUSED BY DEMOLITION ACTIVITIES.
3. REFER TO SINGLE LINE E601 FOR ADDITIONAL REQUIREMENTS.
4. REFER TO DUCT BANK DETAIL FOR UNDERGROUND CONDUIT INSTALLATION
REQUIREMENTS AND REPAIR FINISHED SURFACES IN-KIND TO ORIGINAL CONDITION.
5. ELECTRICAL CONDUIT ROUTING SHOWN AS DIAGRAMMATIC. COORDINATE EXACT
ROUTING WITH NEW AND EXISTING UTILITIES. PROVIDE ADDITIONAL HANDHOLES AS
REQUIRED PER NEC 354.
GENERAL NOTESSHEET NOTES
MBV
SLP
ENLARGED SITE PLAN
- EQUIPMENT YARD
E401SCALE:A2 ENLARGED SITE PLAN - EQUIPMENT YARD
1/4" = 1'-0" NORTH
PROJECT PHASING TO BE COMPLETED TO MINIMIZE FACILITY DOWN-TIME. ALL OUTAGES TO BE
SCHEDULED WITH THE OWNER A MINIMUM OF 2 WEEKS IN ADVANCE AND OCCUR ON SATURDAY
MORNINGS.
INSTALL NEW MEDIUM VOLTAGE TRANSFORMER, NEW SWITCHBOARD, NEW ATS, AND
ASSOCIATED FEEDERS PRIOR TO DISCONNECTION OF EXISTING EQUIPMENT. BACK-FEED
EXISTING SWITCHBOARD WHILE ENERGIZING NEW SERVICE TRANSFORMER AND SWITCHBOARD.
CONTRACTOR PROJECT PHASING PLAN AND PROJECTED SCHEDULE, TO BE REVIEWED AND
APPROVED BY OWNER AND ENGINEER PRIOR TO COMMENCEMENT OF CONSTRUCTION
ACTIVITIES.
PROJECT PHASING NARRATIVE
SCALE:C1 TYPICAL DUCT BANK DETAIL
NTS
1. REFER TO ONELINE DRAWING E601 FOR CONDUIT SIZE AND QUANTITY.
2. CONTRACTOR TO INSTALL NEW OWNER FURNISHED TRANSFORMER.
3. NEW TRANSFORMER PAD TO BE PROVIDED PER APHIS SPECIFICATIONS. COORDINATE
LOCATION WITH EXISTING PRIMARY CONDUITS.
4. PROVIDE NEW NEMA 3R SWITCHBOARD AND HOUSEKEEPING PAD PER APHIS
SPECIFICATIONS.
5. EXISTING SCREEN WALL TO BE REMOVED BY OWNER PRIOR TO COMMENCING.
6. PROVIDE NEW FEEDER TO EXISTING MAIN SWITCHBOARD FOR BACK-FEEDING OF
EXISTING DISTRIBUTION. ENERGIZE NEW TRANSFORMER AND MSB-1 SIMULTANEOUS
TO BACK-FEED CONNECTION TO MINIMIZE FACILITY DOWN-TIME. REFER TO ONELINE
DRAWING E601 FOR CONDUIT SIZE AND QUANTITY.
7. PROVIDE STANCHION MOUNTED, NEMA 3R AUTOMATIC TRANSFER SWITCH WITH
MAINTENANCE BYPASS. COORDINATE EXACT LOCATION PRIOR TO INSTALL AND
ENSURE NEC CLEARANCES.
8. PROVIDE NEW NEMA 3R STANCHION MOUNTED JUNCTION ENCLOSURE TO REPLACE
EXISTING ATS. SIZE PER NEC.
SHEET NOTES
(E)
PANEL
ED
277/480V
3P,4W
225A MLO
EAA1
120/208V
100A MLO
HN2
277/480V
3P,4W
400A MLO
SEC 2
XFMR EBA
480V:208/120V
45KVA
(E)
(E)
PANEL
EAC
120/208V
AA
277/480V
EC
277/480V
ABD
120/208V
XFMR AB
112.5KVA
(E)
XFMR EAA
480V:208/120V
112.5KVA
(E)
(E)
PANEL
EA
277/480V
ABC
120/208V
EB
277/480V
EBA
120/208V
150A MB
AD
277/480V
ABE
120/208V
150A MB
A1 277/480V
UPS PANEL
ABB
120/240V
1P,3W
EAE
277/480V
EAB
120/208V
ABA
120/208V
EDA
120/208v
60A 3P
(E) 200A 3P
(E) 100A 3P
(E)
(E) PANEL EAA
400A 3P
(E)
100A 3P
(E) 175A 3P
(E) 100A 3P
(E)
(E) PANEL AB
300A 3P
(E)
120/208V, 3P, 4W, 400A
120/208V, 3P, 4W, 400A
100A 3P
(E) 150A 3P
UNKNOWN LOAD
(E) xA [HOA] 3P
(E)
1-A
(E) MAIN SWBD
1600A 3P
(E)
3-A
C.W. PUMP
MARK PV-1
(SPARE)
30A 3P
(E)
1-B
300A 3P
(E)
1-C
200A 3P
(E)
1-D xA [HOA] 3P
(E)
1-E
100A 3P
(E)
1-F
200A 3P
(E)
1-G
200A 3P
(E)
1-H
SECTION 1 277/480V, 3P,4W, 800A SECTION 2 SECTION 3 SECTION 4 277/480V, 3P,4W, 1600A
200A [HOA]
3P
(E)
4-A
100A 3P
SPARE
(E)
4-B
100A 3P
SPARE
(E)
4-C
200A 3P
(E)
4-D
400A 3P
(E)
4-E
400A 3P
SPARE
(E)
4-F
CHILLER
(SPARE)
SECTION 5 277/480V, 3P,4W, 1000A
200A 3P
(E)
5-A
200A 3P
(E)
5-B
200A 3P
(E)
5-C
200A 3P
(E)
5-D
200A 3P
(E)
5-E
CHILLER-1
COMPRESSOR-1
(SPARE)
CHILLER
PUMP-2
(SPARE)
CHILLER
MARK II
CHILLER-2
COMPRESSOR-1
(SPARE)
CHILLER
MARK II
CHILLER-2
COMPRESSOR-2
(SPARE)
(E) 150A ENCLOSED CB
FOR PNL ABE
(E)
PANEL
HN2
277/480V
3P,4W
400A MB
SEC 1
GH PNL
A 120/208V
GH PNL
B 120/208V
XFMR A2
30KVA
(E)
(E)
PANEL
A2 120/208V
150A MLO
XFMR AF
112.5KVA
(E)
(E)
PANEL
AF
120/208V
AF
120/208V
EC2
277/480V
XFMR EDA
112.5KVA
(E)
G
(E) GENERATOR
800 KW
277/480V
1200A/3P
(D) MV XFMR
1500KVA
15KV TO 480/277V
(D) ATS
1200A 4P
NEMA 3R
TO MV SWITCH
(E)
PANEL AE
(SPARE)
(E)
PANEL
AIB
120/208V
3P,4W
60A MLO
(LOCATED IN
GREENHOUSE)
(E) POWER
PROCESSOR
15KVA
(D) 4"C; 3#4/0, 15KV
2(D)
(D)
N G
(E) GND PER NEC
(D)
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
P:
\S
PO
\24
JO
BS
\24
A
PH
IS
M
AB
E
LE
CT
RI
CA
L U
PG
RA
DE
S\
0.0 D
W
GS
\E \P
H1 _2
0_
ED
1.D
W G.
_E
D6
: P
ER
RY
, S
HA
UN
A : L
AS
T
SA
VE
D:
A ug us t 1 5, : P
LO
T
DA
TE
: 8
/15 /24 www.coffman.com ph 509.328.2994
221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
1. ALL WORK SHALL COMPLY WITH THE CURRENT NEC AS ADOPTED BY THE STATE OF
TEXAS OR LOCAL AUTHORITY HAVING JURISDICTION.
2. FOR UNDERGROUND FEEDERS TO BE REMOVED, CONTRACTOR TO REMOVE ALL
CONDUCTORS AND ABANDON CONCEALED CONDUIT IN PLACE. DEMO CONDUIT STUB-UP
BACK TO MINIMUM 6" BELOW GRADE AND PATCH OR REPLACE FINISHED GRADE TO
EXISTING CONDITIONS.
3. REFER TO SINGLE LINE E601 FOR ADDITIONAL REQUIREMENTS.
4. PRIOR TO SAW CUTTING OR CORE DRILLING, PROVIDE X-RAY OR SIMILAR LOCATE
TECHNOLOGY TO VERIFY LOCATION OF EXISTING REBAR AND CONDUIT. CONTRACTOR
WILL BE RESPONSIBLE TO REPAIR ANY DAMAGE TO EXISTING UNDERGROUND UTILITIES
CAUSED BY DEMOLITION ACTIVITIES.
GENERAL NOTES
1. EXISTING TRANSFORMER TO REMAIN ACTIVE DURING CONSTRUCTION. DEMO EXISTING
TRANSFORMER ONLY AFTER NEW WORK IS COMPLETE AND THE NEW TRANSFORMER HAS
BEEN ENERGIZED.
2. DEMO EXISTING CONDUCTORS, EXISTING CONDUIT TO BE RE-USED.
3. EXISTING ATS TO BE REMOVED ONLY AFTER NEW WORK IS COMPLETE, NEW SERVICE
TRANSFORMER HAS BEEN ENERGIZED AND NEW ATS AND RACEWAY ARE COMPLETE.
REPLACE ATS WITH NEMA 3R JUNCTION BOX FOR GENERATOR CONNECTION TO NEW ATS.
4. EXISTING MAIN SWITCHBOARD TO BE BACK-FED FROM NEW EXTERIOR MAIN SERVICE
SWITCHBOARD 'MSB-1'. INSTALL NEW FEEDER PER ONE-LINE E601 BEFORE TRANSFERRING
POWER. ENERGIZE NEW TRANSFORMER AND MSB-1 SIMULTANEOUS TO BACK-FEEDING
EXISTING EQUIPMENT TO MINIMIZE DOWNTIME.
5. REMOVE NEUTRAL BOND. PROVIDE NEW NEUTRAL TO GROUND BOND AS NOTED IN NEW
ATS.
SHEET NOTES-
SCALE:A2 ONE LINE DIAGRAM - DEMOLITION
NTS
MBV
SLP
ONE LINE DIAGRAM -
DEMOLITION
ED601
PROJECT PHASING TO BE COMPLETED TO MINIMIZE FACILITY DOWN-TIME. ALL OUTAGES TO BE
SCHEDULED WITH THE OWNER A MINIMUM OF 2 WEEKS IN ADVANCE AND OCCUR ON SATURDAY
MORNINGS.
INSTALL NEW MEDIUM VOLTAGE TRANSFORMER, NEW SWITCHBOARD, NEW ATS, AND
ASSOCIATED FEEDERS PRIOR TO DISCONNECTION OF EXISTING EQUIPMENT. BACK-FEED
EXISTING SWITCHBOARD WHILE ENERGIZING NEW SERVICE TRANSFORMER AND SWITCHBOARD.
CONTRACTOR PROJECT PHASING PLAN AND PROJECTED SCHEDULE, TO BE REVIEWED AND
APPROVED BY OWNER AND ENGINEER PRIOR TO COMMENCEMENT OF CONSTRUCTION
(N) MSB-1
480/277V, 3P, 4W, 2000A
(N) MV XFMR
1500KVA
15KV TO 480/277V
TO MV SWITCH
12.0N
N G
#3/0 (CU)
2000A
4P GFI
TVSS
1"C 3
TO IDF
1"C; CAT 6
30A 3P
SPARE
(FUTURE)
(PNL EAE)
200A 3P
SPARE
(FUTURE)
(PNL EB)
100A 3P
SPARE
(FUTURE)
(PNL EC)
200A 3P
SPARE
(FUTURE)
(PNL EA)
200A 3P
SPARE
(FUTURE)
(PNL ED)
400A 3P
SPARE
(FUTURE)
(PNL HN2)
100A 3P
SPARE
(FUTURE)
(PNL AA)
400A 3P
SPARE
(FUTURE)
(PNL AD)
200A 3P
SPARE
(FUTURE)
(EGC LIGHTS)
200A 3P
SPARE
(FUTURE)
(XFMR AB)
200A 3P
SPARE
(FUTURE)
(PNL A1)
M
TO IDF
1"C; CAT 6
20N
J
20N
G
(E) GENERATOR
800 KW
277/480V
1200A/3P
600A 3P
SPARE
400A 3P
SPARE
150A 3P
SPARE
1600A 3P
16N 9
TO EXISTING MAIN SWBD
(REFER TO ED601)
(E)7
BY
PA
SS
BYPASS
REV DATE DESCRIPTION
PROJ. NO.
DRAWN
CHECKED
DATE
COFFMAN ENGINEERS INC.C
241850
08/15/24
SHEET TITLE:
SHEET NO:
A
B
C
D
A
B
C
D
1 2 3 4 5
2 3 4 5
APHIS
MOORE AIR BASE
BUILDING 6414
ELECTRICAL
UPGRADES
22675 N.
MOOREFIELD RD
EDINBURG, TX 78541
PHASE 1 80% IFB
P:
\S
PO
\24
JO
BS
\24
A
PH
IS
M
AB
E
LE
CT
RI
CA
L U
PG
RA
DE
S\
0.0 D
W
GS
\E \P
H1 _2
0_ E6
.D
W G.
_E
1 :
P
ER
RY
, S
HA
UN
A : L
AS
T
SA
VE
D:
A ug us t 1 5, : P
LO
T
DA
TE
: 8
/15 /24 www.coffman.com ph 509.328.2994
221 N. Wall Street
Spokane, WA 99201 Suite 500
NOT FOR
CONSTRUCTION
1. ALL WORK SHALL COMPLY WITH THE CURRENT NEC AS ADOPTED BY THE STATE OF
TEXAS OR LOCAL AUTHORITY HAVING JURISDICTION.
2. PROVIDE COPPER CONDUCTORS ONLY PER OWNER SPECIFICATIONS.
3. PRIOR TO SAW CUTTING OR CORE DRILLING, PROVIDE X-RAY OR SIMILAR LOCATE
TECHNOLOGY TO VERIFY LOCATION OF EXISTING REBAR AND CONDUIT. CONTRACTOR
WILL BE RESPONSIBLE TO REPAIR ANY DAMAGE TO EXISTING UNDERGROUND UTILITIES
CAUSED BY DEMOLITION ACTIVITIES.
GENERAL NOTES
1. PROVIDE INTEGRAL THREE PHASE POWER AND ENERGY SOURCE METERING
2. PROVIDE STANCHION MOUNTED, NEMA 3R AUTOMATIC TRANSFER SWITCH WITH
MAINTENANCE BYPASS. COORDINATE EXACT LOCATION PRIOR TO INSTALL AND ENSURE
NEC CLEARANCES.
3. PROVIDE GENERATOR COMMUNICATIONS AND CONTROL CABLING PER GENERATOR
MANUFACTURER SPECIFICATIONS FOR GENERATOR START SIGNAL AND ATS TRANSFER.
4. PROVIDE CAT 6 CABLE TO NEAREST IDF CABINET FOR EQUIPMENT NETWORK CONNECTION.
5. SERVICE ENTRANCE RATED MAIN BREAKER. PROVIDE PRIMARY DISCONNECT LABELING PER
NEC. PROVIDE ARC ENERGY REDUCTION TO MEET NEC 240.87. MAIN SERVICE DISCONNECT
CAN BE PROVIDED SEPARATELY AHEAD OF THE ATS AND REMOVING THE NEED FOR THE
ATS BREAKER.
6. PROVIDE NEW 3#4/0, 15KV CONDUCTORS IN EXISTING 4" CONDUIT TO SWITCH.
7. PROVIDE NEW FEEDER CONDUCTORS FROM ATS TO GENERATOR AS NOTED. UTILIZE
EXISTING CONDUITS FROM ORIGINAL ATS.
8. PROVIDE NEW NEMA 3R STANCHION MOUNTED JUNCTION ENCLOSURE TO REPLACE
EXISTING ATS. SIZE PER NEC.
9. PROVIDE NEW FEEDER TO EXISTING MAIN SWITCHBOARD FOR BACK-FEEDING OF EXISTING
DISTRIBUTION. ENERGIZE NEW TRANSFORMER AND MSB-1 SIMULTANEOUS TO BACK-FEED
CONNECTION TO MINIMIZE FACILITY DOWN-TIME.
10. CONTRACTOR TO INSTALL NEW OWNER FURNISHED TRANSFORMER.
11. PROVIDE ARC ENERGY REDUCTION TO MEET NEC 240.87.
SHEET NOTES-
SCALE:A2 ONE-LINE DIAGRAM
NTS
MBV
SLP
ONE-LINE DIAGRAM
E601
COPPER FEEDER SCHEDULE
AMPACITY
(AMPS)
SYMBOL ID. WIRE (3-PHASE) WITH NEUTRAL CONDUIT SYMBOL
ID. WIRE (3-PHASE) WITHOUT NEUTRAL CONDUIT
20 0.2N 4#12, 1#12G (1) 3/4" 0.2 3#12, 1#12G (1) 3/4" 30 0.3N 4#10, 1#10G (1) 3/4" 0.3 3#10, 1#10G (1) 3/4" 40 0.4N 4#8, 1#10G (1) 1" 0.4 3#8, 1#10G (1) 1" 50 0.5N 4#6, 1#10G (1) 1" 0.5 3#6, 1#10G (1) 1" 60 0.6N 4#4, 1#10G (1) 1 1/2" 0.6 3#4, 1#10G (1) 1" 70 0.7N 4#4, 1#8G (1) 1 1/2" 0.7 3#4, 1#8G (1) 1" 80 0.8N 4#3, 1#8G (1) 1 1/2" 0.8 3#3, 1#8G (1) 1 1/2" 90 0.9N 4#2, #8G (1) 1 1/2" 0.9 3#2, #8G (1) 1 1/2"
100 1.0N 4#1, 1#8G (1) 1 1/2" 1.0 3#1, 1#8G (1) 1 1/2" 125 1.25N 4#1, 1#6G (1) 1 1/2" 1.25 3#1, 1#6G (1) 1 1/2" 150 1.5N 4#1/0, 1#6G (1) 2" 1.5 3#1/0, 1#6G (1) 1 1/2" 175 1.75N 4#2/0, 1#6G (1) 2" 1.75 3#2/0, 1#6G (1) 1 1/2" 200 2.0N 4#3/0, 1#6G (1) 2" 2.0 3#3/0, 1#6G (1) 2" 225 2.25N 4#4/0, 1#4G (1) 2 1/2" 2.25 3#4/0, 1#4G (1) 2"
250 2.5N 4#250KCM, 1#4G (1) 2 1/2" 2.5 3#250KCM, 1#4G (1) 2 1/2"
300 3.0N 4#350KCM, 1#4G (1) 3" 3.0 3#350KCM, 1#4G (1) 2 1/2"
350 3.5N 4#500KCM, 1#3G (1) 3 1/2" 3.5 3#500KCM, 1#3G (1) 3"
400 4.0N 4#600KCM, 1#3G (1) 4" 4.0 3#600KCM, 1#3G (1) 4"
450 4.5N 2 SETS 4#4/0, 1#2G (2) 2 1/2" 4.5 2 SETS 3#4/0, 1#2G (2) 2"
500 5.0N 2 SETS 4#250KCM, 1#2G (2) 3" 5.0 2 SETS 3#250KCM, 1#2G (2) 2 1/2"
600 6.0N 2 SETS 4#350KCM, 1#1G (2) 3" 6.0 2 SETS 3#350KCM, 1#1G (2) 2 1/2"
700 7.0N 2 SETS 4#500KCM, 1#1/0G (2) 3 1/2" 7.0 2 SETS 3#500KCM, 1#1/0G (2) 3"
800 8.0N 2 SETS 4#600KCM, 1#1/0G (2) 4" 8.0 2 SETS 3#600KCM, 1#1/0G (2) 4"
1000 10N 3 SETS 4#400KCM, 1#2/0G (3) 3" 10 3 SETS 3#400KCM, 1#2/0G (3) 3"
1200 12N 4 SETS 4#350KCM, 1#3/0G (4) 3 1/2" 12 4 SETS 3#350KCM, 1#3/0G (4) 2 1/2"
1600 16N 4 SETS 4#600KCM, 1#4/0G (4) 4" 16 4 SETS 3#600KCM, 1#4/0G (4) 4"
2000 20N 5 SETS 4#600KCM, 1#250KCM G (5) 4" 20 5 SETS 3#600KCM, 1#250KCM G (5) 4"
SPECIAL Notes:
Based on Copper conductors with XHHW (#8 & Larger) or THHN (#10 & #12) insulation. Reference 2017 NEC tables 310.15(B)(16) and 250.122.
*Equipment bonding jumper sized per NEC 250.102
AMPACITY
(AMPS)
SYMBOL ID. WIRE(1-Phase)WITH NEUTRAL CONDUIT
PROJECT PHASING TO BE COMPLETED TO MINIMIZE FACILITY DOWN-TIME. ALL OUTAGES TO BE
SCHEDULED WITH THE OWNER A MINIMUM OF 2 WEEKS IN ADVANCE AND OCCUR ON SATURDAY
MORNINGS.
INSTALL NEW MEDIUM VOLTAGE TRANSFORMER, NEW SWITCHBOARD, NEW ATS, AND
ASSOCIATED FEEDERS PRIOR TO DISCONNECTION OF EXISTING EQUIPMENT. BACK-FEED
EXISTING SWITCHBOARD WHILE ENERGIZING NEW SERVICE TRANSFORMER AND SWITCHBOARD.
CONTRACTOR PROJECT PHASING PLAN AND PROJECTED SCHEDULE, TO BE REVIEWED AND
APPROVED BY OWNER AND ENGINEER PRIOR TO COMMENCEMENT OF CONSTRUCTION
ACTIVITIES.
PROJECT PHASING NARRATIVE
(N) 2000A GEN ATS
NEC 702 480Y/277V
4-POLE NEMA 3R
SERVICE ENTRANCE RATED
File details come from the government source that posted it. Updated .