Chugiak Senior Housing Generator Replacement

Agency:	City of Anchorage
State:	Alaska
Type of Government:	State & Local
NAICS Category:	238210 - Electrical Contractors and Other Wiring Installation Contractors
Posted Date:	May 5, 2025
Due Date:	Jun 4, 2025
Solicitation No:	2025C026
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Attachment Preview

MUNICIPALITY OF ANCHORAGE

CHUGIAK SENIOR HOUSING GENERATOR REPLACEMENT

CHUGIAK, ALASKA

100% ISSUED FOR CONSTRUCTION 01.30.2025

MUNICIPALITY OF ANCHORAGE

22424 BIRCHWOOD LOOP ROAD

DRAWING INDEX

Sheet Number

Sheet Title

GENERAL

G-001 TITLE SHEET

ELECTRICAL

E-001 ELECTRICAL LEGEND AND ABBREVIATIONS

E-002 ELECTRICAL SPECIFICATIONS

E-003 ELECTRICAL SPECIFICATIONS

E-004 ELECTRICAL SPECIFICATIONS

E-101 ELECTRICAL OVERALL SITE PLAN

E-102 ELECTRICAL

E-103 ELECTRICAL

E-104 ELECTRICAL DEMOLITION ONE-LINE DIAGRAM

E-105 ELECTRICAL ONE-LINE DIAGRAM

E-106 CALCULATIONS

E-110 DETAILS

LOCATION MAP

RUSSIA

ARCTIC

OCEAN

RUSUSSIAA

BERING

SEA

ALASKA

FAIRBANKS

CHUGIAK

ANCHORAGE

CANADA

PROJECT

LOCATION

JUNEAU

GULF OF

ALASKA

KETCHIKAN

PACIFIC

OCEAN

OWNER:

MUNICIPALITY OF ANCHORAGE

MAINTENANCE & OPERATIONS DEPARTMENT

3640 E Tudor Road

Warehouse No. 1

Anchorage, AK 99507

Project Manager: Travis O'Rourke

ph 907.350.2784

ELECTRICAL ENGINEERS:

301 W. Northern Lights Blvd.

Suite 200

Anchorage, AK 99503

ph 907.276.6664

www.coffman.com AECC249

VICINITY MAP

CHUGIAK

EAGLE RIVER

ANCHORAGE

PROJECT LOCATION:

22424 BIRCHWOOD

LOOP RD.

GENERAL NOTES:

11. THE CONTRACTOR SHALL PROVIDE AND INSTALL AN EQUIPMENT GROUNDING CONDUCTOR IN ALL 25. PROVIDE TYPED, UPDATED PANEL SCHEDULES FOR NEW PANELS AND PANELS MODIFIED BY THIS

1. THE ELECTRICAL INSTALLATION SHALL COMPLY WITH THE CURRENT NATIONAL ELECTRICAL CODE,

CONDUITS OR CABLING.

PROJECT.

NFPA 72, STATE AND LOCAL AMENDMENTS, AND NECA STANDARDS OF INSTALLATION.

2. ALL ELECTRICAL EQUIPMENT AND MATERIALS SHALL BE LISTED AND LABELED FOR THEIR

INTENDED APPLICATION BY A NATIONALLY RECOGNIZED TESTING LABORATORY ACCEPTABLE TO

THE AUTHORITY HAVING JURISDICTION.

12. OUTAGES OF ELECTRICAL, TELECOMMUNICATIONS, FIRE ALARM, OR SECURITY SYSTEMS SHALL

OCCUR AT AN ABSOLUTE MINIMUM. COORDINATE SCHEDULED OUTAGES WITH THE OWNER AND

GENERAL CONTRACTOR.

13. ALL CONDUIT AND CABLE SHALL BE INSTALLED ORTHOGONAL TO THE STRUCTURE.

3. CONTRACTOR SHALL VERIFY LOCATION OF ALL EXISTING UTILITIES AND STRUCTURES AFFECTING

THE WORK. NOTIFY THE PROJECT MANAGER IN WRITING OF ANY DISCREPANCIES BETWEEN

EXISTING CONDITIONS AND THOSE SHOWN IN THE CONTRACT DOCUMENTS WHICH ADVERSELY

14. NEW ELECTRICAL DEVICES SHALL BE INSTALLED TO MATCH THE HEIGHT OF EXISTING DEVICES.

IMPACT THE WORK.

15. SURFACE MOUNTED CONDUIT IS NOT ALLOWED EXCEPT IN MECHANICAL ROOMS, ELECTRICAL

4. CONTACT LOCAL UTILITY PROVIDERS FOR UTILITY LINE LOCATES PRIOR TO COMMENCING

ROOMS, COMMUNICATIONS ROOMS, AND BOILER ROOMS, UNLESS OTHERWISE NOTED ON THE

DRAWINGS.

EXCAVATION ON THE SITE.

26. DRAWINGS ARE SCHEMATIC ONLY AND DO NOT SHOW ALL CONDUIT AND CONNECTIONS BETWEEN

RESPECTIVE DEVICES AND FIXTURES. CONTRACTOR SHALL DETERMINE THE EXACT ROUTING OF

CONDUIT, CABLE, AND WIRING CONNECTIONS BETWEEN RESPECTIVE DEVICES AND FIXTURES FOR

A COMPLETE AND OPERATIONAL SYSTEM.

27. ALL EQUIPMENT, INSTRUMENTATION, CONDUIT, MC CABLE, AND WIRING MUST HAVE A FORM OF

IDENTIFICATION. PROVIDE STAINLESS STEEL IDENTITY TAGS FOR ALL NEW EQUIPMENT INSTALLED.

28. COORDINATE INSTRUMENTATION & CONTROLS SCOPE OF WORK WITH ALL TRADES TO AVOID

CONFLICTS AND MAINTAIN CONSTRUCTION SCHEDULE. REFER TO COMPLETE PROJECT WORK

PACKAGE TO FACILITATE FIELD COORDINATION.

5. EXISTING EQUIPMENT INFORMATION SHOWN ON THESE DRAWINGS SHOULD BE FIELD VERIFIED.

CONFIRM NEW EQUIPMENT LOCATIONS WITH OWNER AND ADJUST AS REQUIRED.

6. APPROVED-EQUAL EQUIPMENT: EQUIPMENT SHOWN OR SPECIFIED ON THE DRAWINGS WAS

USED AS THE BASIS-OF-DESIGN. DIFFERENT MAKES, MODELS AND MANUFACTURERS MAY BE

16. ALL CONDUCTOR SIZES SHOWN ARE BASED ON COPPER UNLESS NOTED OTHERWISE.

17. MAINTAIN A MINIMUM 6” CLEARANCE BETWEEN CONDUIT AND PIPING. MAINTAIN A 12” CLEARANCE

BETWEEN CONDUIT AND HEAT SOURCES SUCH AS FLUES, HEATING PIPES, AND HEATING

APPLIANCES.

29. EXISTING CONDITIONS SHOWN ON THESE DRAWING ARE BASED ON RECORD DRAWINGS AND A

NON-DESTRUCTIVE SITE INVESTIGATION OF THE FACILITY. THERE IS NO WARRANTY OR

GUARANTEE AS TO THE ACCURACY OF THE INFORMATION SHOWN HERE-IN. THE CONTRACTOR

SHALL FIELD VERIFY EXISTING CONDITIONS AND ALL ITEMS SCHEDULED FOR DEMOLITION PRIOR

TO THE START OF WORK.

PROVIDED WHEN THE SUBSTITUTE IS OF SUBSTANTIALLY THE SAME FUNCTION, QUALITY,

RELIABILITY, ETC. AND HAS BEEN SUBMITTED AND APPROVED BY THE OWNER AS AN

EQUIVALENT PRODUCT.

18. VERIFY CEILING TYPES THROUGHOUT THE PROJECT PRIOR TO ORDERING LIGHT FIXTURES.

PROVIDE COMPATIBLE MOUNTING ACCESSORIES AND ALL TRIM, FLANGES, SUPPORTS, OUTLET

BOXES, ETC. FOR A COMPLETE AND FINISHED INSTALLATION.

30. THE OWNER SHALL HAVE FIRST RIGHT OF REFUSAL FOR ALL SALVAGEABLE MATERIALS. THE

CONTRACTOR SHALL DELIVER SALVAGED MATERIALS TO A LOCATION AS DIRECTED BY THE OWNER

IN ACCORDANCE WITH THE CONTRACT DOCUMENTS.

PERMIT STAMP

7. CONTRACTOR SHALL DISPOSE OF ALL DEMOLISHED AND UNUSED EQUIPMENT AND MATERIALS

OFFSITE IN ACCORDANCE WITH LOCAL, STATE, AND FEDERAL REGULATIONS.

8. CONTRACTOR SHALL MAINTAIN A RED-LINE SET OF CONSTRUCTION DOCUMENTS DURING

CONSTRUCTION. RED-LINE DRAWINGS SHALL BE SUBMITTED TO THE OWNER UPON PROJECT

COMPLETION.

19. THE ELECTRICAL INSTALLATION SHALL COMPLY WITH THE CURRENT NEC ARTICLES 500. PROVIDE

CONDUIT SEALS AT ALL BOUNDARY LOCATIONS AS REQUIRED.

20. CIRCUIT NUMBERS ARE SHOWN NEXT TO ELECTRICAL DEVICES ONLY. REFER TO THE EQUIPMENT

SCHEDULE IF A CIRCUIT ASSIGNMENT IS NOT SHOWN ON THE PLANS. PROVIDE WIRING AS SHOWN

ON DRAWINGS AND LISTED IN SPECIFICATIONS.

31. ALL NEW CIRCUIT BREAKERS PROVIDED FOR EXISTING DISTRIBUTION EQUIPMENT SHALL BE

SUITABLE AND LISTED FOR USE IN THE EXISTING EQUIPMENT AND SHALL HAVE AN AIC RATING TO

MAINTAIN DISTRIBUTION EQUIPMENT SHORT CIRCUIT CURRENT RATING.

21. ANY PENETRATION OF THE BUILDING VAPOR BARRIER SYSTEM SHALL BE APPROPRIATELY SEALED

9. ALL WIRING INSTALLED IN UNHEATED OR EXTERIOR SPACES SHALL BE XHHW-2. INTERIOR WIRING

TO RETAIN THE INTEGRITY OF THE WALL OR ROOFING SYSTEM. THIS INCLUDES, BUT IS NOT

MAY BE THHW/THHN UNLESS NOTED OTHERWISE.

LIMITED TO, CONDUITS AND BACKS OF ELECTRICAL BOXES.

SCOPE OF WORK OVERVIEW:

10. CONDUCTORS SHALL BE #12 AWG COPPER MINIMUM OR AS SHOWN ON DRAWINGS. HOME RUN

CONDUCTORS SHALL BE #10 AWG COPPER MINIMUM OR AS REQUIRED BY THE NEC. THE MINIMUM

SIZE FOR 20A BRANCH CIRCUITS MEASURED FROM THE PANELBOARD TO THE FURTHEST DEVICE

ON THE CIRCUIT UNLESS NOTED ON DRAWINGS:

22. SEAL ALL RACEWAYS SUBJECT TO MOISTURE TRANSFER OR TRANSITIONING FROM INTERIOR TO

EXTERIOR OF THE BUILDING IN ACCORDANCE WITH NEC. REFERENCE NEC 225.27, 230.8, 300.5(G)

AND 300.7(A).

#10 AWG CONDUCTORS FOR 120V BRANCH CIRCUITS GREATER THAN 75'

23. LOCATIONS OF EQUIPMENT SHOWN ARE APPROXIMATE ONLY.

#8 AWG CONDUCTORS FOR 120V BRANCH CIRCUITS GREATER THAN 175'

INCREASE GROUND CONDUCTOR SIZE PER NEC

FOR 15A AND 20A CIRCUITS, TRANSITION TO #12 AWG WITHIN 15' OF DEVICE IF A SMALL

24. CUT AND PATCH THE EXISTING CEILING AND WALLS AS REQUIRED TO INSTALL NEW BRANCH

CIRCUITS. ANY PATCHES SHALL BE FINISHED TO MATCH THE EXISTING ADJACENT SURFACES.

REPLACE ANY DAMAGED CEILING TILES AS REQUIRED.

CONDUCTOR IS REQUIRED FOR DEVICE TERMINATION.

THE SCOPE OF THIS PROJECT IS TO REPLACE THE EXISTING 60KW GENERATOR LOCATED IN THE SECOND FLOOR ELECTRICAL ROOM WITH A NEW 60KW

GENERATOR, AND TO PROVIDE A NEW ELECTRICAL SERVICE TO SUPPLY THE EXISTING 20HP FIRE PUMP. DEMOLITION AND/OR REMOVAL OF THE EXISTING

GENERATOR, FIRE PUMP TRANSFER SWITCH, DISCONNECT SWITCH, CONDUCTORS, AND OTHER EQUIPMENT AND WIRING AS SHOWN ON THE DRAWINGS, AS WELL

AS PROVISION AND INSTALLATION OF ANCILLARY COMPONENTS AND WIRING AS SHOWN ON THE DRAWINGS AND SPECIFICATIONS. ADDITIONALLY, A NUMBER OF

PANELBOARDS WILL BE REFED TO CONNECT THEM TO THE STANDBY SYSTEM.

ELECTRICAL SYMBOLS

ELECTRICAL ABBREVIATIONS

SYMBOL

DESCRIPTION

SYMBOL

DESCRIPTION

ABBREVIATION

DESCRIPTION

ABBREVIATION

DESCRIPTION

X-XXXX

DETAIL REFERENCE BUBBLE

METER

AMPERE

ALTERNATING CURRENT

AFF

ABOVE FINISHED FLOOR

MAX

MAXIMUM

MBJ

MAIN BONDING JUMPER

MDP

MAIN DISTRIBUTION PANEL

DETAIL / REFERENCE NUMBER

MOTOR CONNECTION

AIP

ABANDONED IN PLACE

AWG

AMERICAN WIRE GAUGE

MEA

MECH

MATANUSKA ELECTRIC ASSOCIATION

MECHANICAL

SHEET NUMBER WHERE DETAIL IS

BATT

BATTERY

MAN HOLE

LOCATED

GENERATOR

BLDG

BUILDING

MIN

MINIMUM

BRKR

BREAKER

ML&P

MUNICIPAL LIGHT & POWER

UGC

UNDERGROUND COMMUNICATIONS

EMERGENCY GENERATOR

CABLE - CONDUIT - COIL

CAT

CATEGORY

NEUT, N

NORMALLY CLOSED

NEUTRAL

CIRCUIT BREAKER

NIC

NOT IN CONTRACT

UGE

UNDERGROUND ELECTRICAL

CEA

CHUGACH ELECTRIC ASSOCIATION

NUMBER - NORMALLY OPEN

PANELBOARD

CEI

COFFMAN ENGINEERS INCORPORATED

NRTL

NATIONAL RECOGNIZED

ABOVE GROUND ROUTING

CJB

CONTROL JUNCTION BOX

CKT

CIRCUIT

TESTING LABORATORY

NTS

NOT TO SCALE

TRANSFORMER

COM

COMMUNICATIONS

OH/E

OVERHEAD ELECTRICAL

CIRCUIT BREAKER

CATHODIC PROTECTION

CURRENT TRANSFORMER

PHASE

PJB

POWER JUNCTION BOX

RECEPTACLE

COPPER

POWER KIT

CONTACT - NORMALLY OPEN

DIV

DIVISION

PKG

PACKAGE

RECEPTACLE, CEILING MOUNTED

DWG

DRAWING

EACH

PNL

PANEL - PANELBOARD

PAIR

CONTACT - NORMALLY CLOSED

END KIT

PVC

POLYVINYL CHLORIDE CONDUIT

CONTACTOR

RECEPTACLE, SPECIAL PURPOSE

ELEC

(E), E, EXIST

ELEVATION

ELECTRICAL

EXISTING

(R), R

RECEPT

RMC

REPLACE

RECEPTACLE

RIGID METAL CONDUIT

CURRENT TRANSFORMER

JUNCTION BOX

ESD

(ETR), ETR

EMERGENCY SHUT DOWN

EXISTING TO REMAIN

SBJ

SYSTEM BONDING JUMPER

SCH

SCHEDULE

FIRE ALARM

SECT

SECTION

EMERGENCY SHUT DOWN PUSHBUTTON

DISCONNECT SWITCH

FACP

FIRE ALARM CONTROL PANEL

FIBER OPTIC

SHLD

SPEC

SHIELDED

SPECIFICATIONS

FEET FOOT

SSBJ

SUPPLY SIDE BONDING JUMPER

EQUIPMENT CONNECTION

FUSED DISCONNECT SWITCH

GEC

GROUNDING ELECTRODE CONDUCTOR

GFCI

GROUND FAULT CIRCUIT INTERRUPTER

STBY

STD

STANDBY

STANDARD

GFI, G

GROUND FAULT INTERRUPTER

STL

STEEL

FUSE WITH RATING

HANDHOLE

GND

GROUND

GRS

GALVANIZED RIGID STEEL

SUSE

SUITABLE FOR USE AS SERVICE

EQUIPMENT

HANDHOLE

SYS

SYSTEM

FUSED DISCONNECT SWITCH

EQUIPMENT CABINET

HOA

HAND-OFF-AUTO

HORSEPOWER

TEMP

TERMINAL BLOCK

TEMPORARY - TEMPERATURE

HERTZ - CYCLES PER SEC

TEMPERATURE SENSOR

GROUND CONNECTION

AUTOMATIC TRANSFER SWITCH

INTERRUPTING CAPACITY

INCH

TSP

TWISTED SHIELDED PAIR

TYP

TYPICAL

JB, JBOX

JUNCTION BOX

UGC

UNDERGROUND COMMUNICATIONS

kcmil

THOUSAND CIRCULAR MILS

UGE

UNDERGROUND ELECTRICAL

KVA

KILOVOLT AMPERES

UG/T

UNDERGROUND TELEPHONE CABLE

KILOWATT

VOLT

KWH

KILOWATT HOUR

WATT, WIDE, WEST

LFMC

LIQUID TIGHT FLEXIBLE METAL CONDUIT

WHM

WATT HOUR METER

LTG

LIGHTING

WEATHERPROOF-WHILE-IN-USE

M.A.S.S.

MUNICIPALITY OF ANCHORAGE STANDARD

XFMR

TRANSFORMER

SPECIFICATIONS

IMPEDANCE

ALL SYMBOLS AND ABBREVIATIONS DO NOT NECESSARILY APPEAR ON DRAWINGS

301 W. Northern Lights Blvd.

Suite 200

Anchorage, AK 99503

ph 907.276.6664

www.coffman.com AECC249

TOM E. LOONEY

Jan 30, 2025

TERED

No. EE9369

PROFESSIONA

ENG

CHUGIAK SENIOR

CENTER GENERATOR

C REPLACEMENT

MUNICIPALITY OF

ANCHORAGE

100% ISSUED FOR

CONSTRUCTION

REV DATE DESCRIPTION

PROJ. NO.

DRAWN

CHECKED

DATE

241484

ALM

TEL

01/30/2025

C COFFMAN ENGINEERS INC.

SHEET TITLE:

ELECTRICAL

LEGEND AND

ABBREVIATIONS

SHEET NO:

E-001

DIVISION 26 SPECIFICATIONS

PART 1

GENERAL

1.1 SUMMARY

A. THIS SECTION INCLUDES GENERAL REQUIREMENTS FOR ELECTRICAL

INSTALLATION AND IS APPLICABLE TO ALL DIVISION 26 SECTIONS.

1.2 SCOPE OF WORK

METHODS, TECHNIQUES, SEQUENCES OR PROCEDURES REQUIRED FOR THE

CONTRACTOR TO PERFORM HIS WORK. THE CONTRACTOR WILL BE SOLELY AND

COMPLETELY RESPONSIBLE FOR CONDITIONS OF THE JOB SITE, INCLUDING

SAFETY OF ALL PERSONS AND PROPERTY DURING PERFORMANCE OF HIS WORK.

THIS REQUIREMENT WILL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL

WORKING HOURS. THE DUTY OF THE ENGINEER TO CONDUCT CONSTRUCTION

OBSERVATIONS OF THE CONTRACTOR'S PERFORMANCE IS NOT INTENDED TO

INCLUDE REVIEW OF THE ADEQUACY OF THE CONTRACTOR'S SAFETY MEASURES,

IN, ON OR NEAR THE CONSTRUCTION SITE.

O. INSTALL INSULATED SPRING WIRE CONNECTORS WITH PLASTIC CAPS FOR COPPER

CONDUCTOR SPLICES AND TAPS, 8 AWG AND SMALLER.

P. WHERE STRANDED CONDUCTORS ARE TERMINATED ON SCREW TYPE TERMINALS

INSTALL CRIMP ON FORK TERMINALS. DO NOT PLACE BARE STRANDED

CONDUCTORS DIRECTLY UNDER SCREWS.

Q. SUPPORT CONDUIT AT MAXIMUM INTERVALS OF 10 FEET AND ADDITIONAL

SUPPORTS AT BENDS, FITTINGS, AND FIXTURES. MAKE CONDUIT SYSTEM RIGID

AND FREE FROM VIBRATION.

A. PROVIDE ALL LABOR. EQUIPMENT, MATERIALS, AND SERVICES REQUIRED FOR A

1.7 SUBMITTALS

R. DETECTABLE UNDERGROUND WARNING TAPE: CONDUCTING UNDERGROUND LINES

COMPLETE INSTALLATION, TESTING, AND STARTUP OF ALL SYSTEMS DENOTED ON

THE PLANS AND SPECIFICATIONS.

A. CONTRACTOR SHALL SUBSTANTIATE CONFORMANCE TO THIS SPECIFICATION BY

SUPPLYING THE NECESSARY DOCUMENTS, PERFORMANCE DATA AND WIRING

B. VERIFY EXISTING CONDITIONS AFFECTING THE ELECTRICAL WORK TO PRIOR TO

DIAGRAMS TO THE OWNERS REPRESENTATIVE. ANY DEVIATIONS TO THIS

NOT ENCASED IN CONCRETE THAT ARE BURIED 18 INCHES OR MORE SHALL HAVE

WARNING TAPE NO LESS THAN 12 INCHES ABOVE THE UNDERGROUND

INSTALLATION. ALIGN TAPE PARALLEL TO CONDUIT RUN.

COMMENCEMENT OF PROJECT.

SPECIFICATION MUST BE CLEARLY STATED BY LETTER AND SUBMITTED.

2.4 DISTRIBUTION EQUIPMENT AND PANELBOARDS

1.3 ELECTRICAL DRAWINGS AND SYMBOLS

A. ELECTRICAL DRAWINGS ARE DIAGRAMMATIC AND ARE NOT INTENDED TO SHOW

B. PROVIDE STANDARD CATALOG LITERATURE FOR ALL NEW ELECTRICAL EQUIPMENT

AND DEVICES INCLUDING OUTLETS, DISCONNECTS, STARTERS ETC.

A. SERVICE: BUILDING SERVICE SHALL BE 208/120V, THREE PHASE, 4 WIRE. METER

BASE AND SERVICE DISCONNECT SHALL BE LOCATED AS SHOWN ON PLANS.

COORDINATE WITH THE UTILITY FOR INSTALLATION REQUIREMENTS.

ALL FEATURES OF WORK. HOWEVER, THE CONTRACTOR SHALL PROVIDE

PRODUCTS NECESSARY FOR A COMPLETE AND OPERABLE SYSTEM IN

ACCORDANCE WITH NEC, AND ALL LOCAL AMENDMENTS.

B. INSTALL UN-DIMENSIONED ELECTRICAL ITEMS IN A MANNER TO PROVIDE

SYMMETRICAL APPEARANCE. DO NOT SCALE DRAWINGS FOR EQUIPMENT

LOCATION. REVIEW, STRUCTURAL AND MECHANICAL DRAWINGS FOR LOCATIONS.

C. CATALOG SHEETS MUST CLEARLY STATE COMPLETE PART NUMBERS.

D. WARRANTY: THE CONTRACTOR SHALL GUARANTEE ALL WORK INSTALLED UNDER

THIS SPECIFICATION AND MAKE GOOD, REPAIR OR REPLACE AT HIS OWN EXPENSE,

ANY DEFECTIVE WORK, MATERIALS OR PARTS WITHIN ONE YEAR AFTER FINAL

ACCEPTANCE, IF, IN THE OPINION OF THE ARCHITECT, SAID DEFECT IS DUE TO

IMPERFECTION IN MATERIAL, DESIGN OR WORKMANSHIP

B. DISTRIBUTION PANELS: SHALL BE 208/120V, SIZE AND CURRENT RATINGS SHOWN

ON THE DRAWINGS.

C. INSTALL PANEL BOARDS PLUMB AND LEVEL. HEIGHT: 6 FEET TO TOP OF PANEL

BOARD; INSTALL PANEL BOARDS TALLER THAN 6 FEET WITH BOTTOM NO MORE

THAN 4 INCHES ABOVE FLOOR.

ADJUST WORK TO CONFORM TO ACTUAL CONDITIONS SHOWN.

1.8 QUALITY ASSURANCE

D. INSTALL FILLER PLATES FOR UNUSED SPACES IN PANEL BOARDS.

C. DRAWING SYMBOLS USED FOR BASIC MATERIALS, EQUIPMENT, ETC., ARE

DENOTED BY INDUSTRY STANDARD SYMBOLS. SPECIAL ITEMS ARE DENOTED BY

SYMBOL LEGEND OR CALLED OUT ON THE DRAWINGS OR SPECIFICATION.

A. WORKMANSHIP IS CONSIDERED IMPORTANT AND IS SUBJECT TO APPROVAL.

EMPLOY WORKMEN SKILLED IN THE TRADE AND FAMILIAR WITH PARTICULAR

TECHNIQUES APPLICABLE TO VARIOUS SECTIONS OF WORK.

E. PROVIDE TYPED CIRCUIT DIRECTORY FOR EACH BRANCH CIRCUIT PANEL BOARD.

REVISE DIRECTORY TO REFLECT CIRCUITING CHANGES TO MATCH AS-BUILT

CONDITIONS.

1.4 COORDINATION

B. PROVIDE ALL MATERIALS TO CONFORM WITH APPLICABLE INDUSTRY STANDARDS

F. INSTALL ENGRAVED PLASTIC NAMEPLATES.

A. COORDINATE WITH MEA ON CONNECTION TO SERVICE LATERAL.

AND UNDERWRITERS LABORATORIES STANDARDS. WHENEVER POSSIBLE, SIMILAR 2.5 SERVICE EQUIPMENT

B. EXPOSED RACEWAYS SHALL BE ROUTED ORTHOGONAL TO THE STRUCTURE.

ITEMS SHALL BE SUPPLIED BY THE SAME MANUFACTURER THROUGHOUT THE

PROJECT.

A. SERVICE EQUIPMENT SHALL BE AS SHOWN ON THE DRAWINGS AND IN THE 2024

C. OBTAIN WRITTEN PERMISSION FROM OWNER'S REPRESENTATIVE PRIOR TO

EDITION OF THE MEA SERVICE GUIDE, FIGURE 9 - THREE PHASE CT SERVICE 200

CUTTING, DRILLING OR WEAKENING STRUCTURAL COMPONENTS.

1.9 EQUIPMENT SCHEDULES

AMP TO 600 AMP 208/120 VOLT. ALL SERVICE EQUIPMENT MUST BE MOUNTED ON

D. COORDINATE WITH OWNER'S REPRESENTATIVE TO FORM A WORK PLAN AND

SCHEDULE. SOME AREAS OF THE BUILDING MAY BE OFF LIMITS TO THE

A. FIXTURE AND EQUIPMENT SCHEDULES ON THE DRAWINGS DENOTING

CAPABILITIES, RATINGS, SIZES, ETC., SHOWN ARE THE MINIMUM ACCEPTABLE AND

THE EQUIPMENT RACK AS SHOWN ON THE DRAWINGS AND IN COMPLIANCE WITH

THE MEA SERVICE GUIDE.

CONTRACTOR DURING SPECIFIC HOURS.

MAY NOT NECESSARILY CORRESPOND WITH CATALOG RATINGS OR EQUIPMENT

B. ALL SERVICE EQUIPMENT AND WIRING MUST CONFORM TO THE LATEST EDITION OF

SPECIFIED.

THE NATIONAL ELECTRIC CODE, TO STATE OR LOCAL CODES, AND MATANUSKA

E. AT EACH PANEL-BOARD AND ELECTRICAL DEVICE THAT REQUIRES WORKING

CLEARANCE BY THE NEC THE CONTRACTOR SHALL ARRANGE EQUIPMENT TO

PROVIDE ADEQUATE CLEARANCE INCLUDING REARRANGEMENT OF SUCH

EQUIPMENT TO OPTIMIZE ACTUAL FIELD CONDITIONS. THE CONTRACTOR SHALL

MONITOR THE WORK OF ALL TRADES TO ASSURE THAT THE SPACE AND

CLEARANCE REQUIREMENTS OF THE CODE ARE MET.

F. THE HORSEPOWER AND WATTAGE OF EQUIPMENT DENOTED ON THE DRAWINGS

ARE ESTIMATED REQUIREMENTS OF EQUIPMENT FURNISHED UNDER OTHER

DIVISIONS OF THE CONTRACT. COORDINATE OVERLOAD ELEMENTS TO MATCH

ACTUAL EQUIPMENT NAMEPLATES.

PART 2

PRODUCTS

2.1 GENERAL

A. MATERIALS AND EQUIPMENT SHALL BE ACCEPTABLE TO THE AUTHORITY HAVING

JURISDICTION AS SUITABLE FOR THE USE INTENDED. ALL ELECTRICAL EQUIPMENT

SHALL BEAR THE SEAL OF A NATIONALLY RECOGNIZED TESTING LABORATORY FOR

THE PURPOSE FOR WHICH IT IS INSTALLED.

2.2 LABELING

ELECTRIC ASSOCIATION (MEA) REQUIREMENTS.

C. ALL SERVICE EQUIPMENT COMPONENTS MUST BE UL LISTED, WEATHERPROOF,

AND MANUFACTURED FOR THE APPLICATION USED. ENCLOSURES MUST BE RATED

FOR NEMA 3R WEATHERPROOFING, AT A MINIMUM. INSTALLATION WILL NOT ALLOW

ACCESS TO UTILITIES' (MEA'S) SERVICE CONDUCTORS WITHOUT REMOVING THE

METER, OR OTHER UTILITY SEALS.

D. EACH ELECTRIC SERVICE SHALL COMPLY WITH ALL APPLICABLE GROUNDING

REQUIREMENTS OF THE LATEST VERSION OF THE NEC AND WITH ANY LOCAL

AMENDMENTS TO THE NEC.

1.5 PAINTING AND REPAIR

A. ALL BUILDINGS MATERIALS, EQUIPMENT AND EXISTING FURNITURE DAMAGED

A. PROVIDE TYPED CIRCUIT DIRECTORY FOR EACH BRANCH CIRCUIT PANEL BOARD.

REVISE DIRECTORY TO REFLECT CIRCUITING CHANGES TO MATCH AS-BUILT

CONDITIONS.

E. TWO GROUND RODS ARE REQUIRED, SPACED NOT LESS THAT SIX FEET APART.

GROUND RODS MUST BE 5/8” X 8' COPPER CLAD STEEL OR GALVANIZED STEEL

DRIVEN VERTICALLY INTO UNDISTURBED EARTH. CLAMPS MUST BE A

DURING THE INSTALLATION OF THE WORK MUST BE REPAIRED OR REPLACED WITH

MATERIALS IN LIKE KIND AND QUALITY OF THE ORIGINAL BY SKILLED LABOR

EXPERIENCED IN THAT PARTICULAR BUILDING TRADE.

B. PROVIDE CIRCUIT LABELS AT ALL JUNCTION BOX AND OUTLET LOCATIONS.

PROVIDE THERMAL LABELS INDICATING CIRCUIT NUMBER ON ALL RECEPTACLE

FACE PLATES.

MANUFACTURED TYPE APPROVED FOR THE PURPOSE. GROUND ROD

CONNECTIONS MUST REMAIN VISIBLE UNTIL INSPECTIONS ARE COMPLETE. THE

TOP OF THE GROUND RODS MUST BE A MINIMUM OF SIX INCHES BELOW FINAL

B. ITEMS SCRATCHED OR MARRED IN SHIPMENT OR INSTALLATION SHALL BE

REFINISHED WITH TOUCHUP PAINT SELECTED TO MATCH INSTALLED EQUIPMENT

FINISH.

C. PROVIDE PHENOLIC LABELS FOR NEW SERVICE EQUIPMENT.

2.3 WIRING AND CONDUIT

GRADE AFTER COVERING.

F. GROUND WIRE MUST BE BARE COPPER, UNSPLICED IN ITS ENTIRE LENGTH,

FASTENED TO THE STRUCTURE, RUNNING CONTINUOUSLY FROM THE NEUTRAL

1.6 CODES AND STANDARDS

A. CODES: PERFORM ALL WORK IN ACCORDANCE WITH ALL LATEST LEGALLY

ENACTED EDITIONS OF NATIONAL, STATE AND LOCAL CODES INCLUDING:

A. EXTERIOR ABOVE GRADE CONDUIT, OR INTERIOR CONDUIT SUBJECT TO PHYSICAL

DAMAGE SHALL BE GALVANIZED RIGID STEEL (GRS).

B. UNDERGROUND CONDUIT SHALL BE SCHEDULE 40 POLY VINYL CHLORIDE (PVC).

BUS INSIDE THE SERVICE DISCONNECT TO THE GROUND RODS. THE GROUND WIRE

AND CONNECTIONS MUST BE VISIBLE FOR MEA INSPECTION. THE GROUNDING

SYSTEM SHALL TIE TOGETHER THE SERVICE ENTRANCE, GROUND RODS, WATER

SYSTEM, AND BUILDING WIRING. GROUND ROD GROUNDING CONDUCTOR SIZE

1. NFPA 70 - NATIONAL ELECTRICAL CODE (NEC)

2. NFPA 72 AND 101 - NATIONAL FIRE ALARM CODE AND LIFE SAFETY CODE.

3. ANSI/IEEE C2 - NATIONAL ELECTRICAL SAFETY CODE (NESC)

C. INTERIOR CONDUITS NOT EXPOSED TO PHYSICAL DAMAGE MAY BE ELECTRICAL

METALLIC TUBING (EMT).

D. CONDUCTORS SHALL BE #12 AWG COPPER MINIMUM OR AS SHOWN ON DRAWINGS.

HOME RUN CONDUCTORS SHALL BE #10 AWG COPPER MINIMUM OR AS REQUIRED

SHALL BE A MINIMUM OF #6 AWG SOLD COPPER UNLESS REQUIRED TO BE LARGER

BY THE NEC. ONLY ONE CONDUCTOR MAY BE INSTALLED IN EACH CONDUCTOR

LUG POSITION.

G. MAIN DISCONNECT SWITCHES ASSOCIATED WITH SERVICE ENTRANCE EQUIPMENT

4. INTERNATIONAL BUILDING CODE (IBC)

5. INTERNATIONAL FIRE CODE (IFC)

6. STATE OF ALASKA AMENDMENTS TO NEC, IBC, AND IFC.

BY THE NEC. FOR 15A AND 20A CIRCUITS, TRANSITION TO #12 AWG WITHIN 15' OF

DEVICE IF A SMALL CONDUCTOR IS REQUIRED FOR DEVICE TERMINATION.

E. THE CONTRACTOR SHALL PROVIDE AND INSTALL AN EQUIPMENT GROUNDING

CONDUCTOR IN ALL CONDUITS OR CABLING.

MUST PROVIDE A VISUAL OPEN, LOCK OUT CAPABILITY, LOCKABLE IN BOTH THE

OPEN AND CLOSED POSITIONS.

H. COORDINATE THE INSTALLATION OF THE SERVICE EQUIPMENT WITH MATANUSKA

ELECTRIC ASSOCIATION.

7. ALASKA ADMINISTRATIVE CODE 8.70 ELECTRICAL SAFETY CODE.

F. ALL CONDUCTOR SIZES SHOWN ARE BASED ON COPPER UNLESS NOTED

2.6 DIESEL - ENGINE DRIVE GENERATOR SET

B. STANDARDS: PROVIDE ALL EQUIPMENT, MATERIALS AND INSTALLATION IN

CONFORMANCE WITH THE FOLLOWING LATEST CURRENT PUBLICATIONS AND

STANDARDS AS APPLICABLE.

1. UNDERWRITER'S LABORATORY (UL)

OTHERWISE.

G. MAINTAIN A MINIMUM 6" CLEARANCE BETWEEN CONDUIT AND PIPING. MAINTAIN A

MINIMUM 12" CLEARANCE BETWEEN CONDUIT AND HEAT SOURCES SUCH AS

FLUES, HEATING PIPES, AND HEATING APPLIANCES. MAINTAIN A MINIMUM OF 12"

PART 1

GENERAL

SUMMARY

1. SECTION INCLUDES:

2. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

3. AMERICAN SOCIETY OF TESTING AND MATERIALS (ASTM)

4. INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

CLEARANCE BETWEEN POWER AND COMMUNICATION CONDUITS.

H. PROVIDE ALL CONDUCTORS SIZED PER NEC REQUIREMENTS INCLUDING

ADJUSTMENT FACTORS FOR AMBIENT TEMPERATURE AND MORE THAT THREE

CURRENT CARRYING CONDUCTORS PER RACEWAY.

a. DIESEL-ENGINE-DRIVEN GENERATOR SETS.

b. DIESEL ENGINE.

c. CONTROL AND MONITORING.

5. NATIONAL ELECTRICAL CONTRACTORS ASSOCIATION (NECA)

6. NATIONAL ELECTRICAL MANUFACTURERS' ASSOCIATION (NEMA)

7. INTERNATIONAL ELECTRICAL TESTING ASSOCIATION (NETA)

8. NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

I. PROVIDE ALL BRANCH CIRCUITS SIZED TO PROVIDE LESS THAN 3%VOLTAGE DROP

FORM THE PANEL BOARD TO THE LAST DEVICE ON THE CIRCUIT. USE THE LOAD

PROVIDED IN THE PANEL SCHEDULE FOR CALCULATIONS.

J. PERFORM WIRING CONNECTIONS AND SPLICES ONLY IN ACCESSIBLE OUTLET OR

JUNCTION BOXES.

d. GENERATOR OVERCURRENT AND FAULT PROTECTION.

e. GENERATOR, EXCITER, AND VOLTAGE REGULATOR.

f. VIBRATION ISOLATION DEVICES.

B. DEFINITIONS

9. NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST)

K. CLEAN CONDUCTOR SURFACES BEFORE INSTALLING LUGS AND CONNECTORS.

1. EPS: EMERGENCY POWER SUPPLY.

C. CERTIFICATE OF INSPECTION: OBTAIN A CERTIFICATE OF ELECTRICAL INSPECTION

FROM THE LOCAL INSPECTING AUTHORITY INDICATING FINAL ACCEPTANCE.

SUBMIT TO THE OWNER UPON COMPLETION OF THE PROJECT AS PART OF

PROJECT CLOSEOUT.

D. SAFETY MEASURES TO BE TAKEN: THE ENGINEER HAS NOT BEEN RETAINED OR

COMPENSATED TO PROVIDE DESIGN AND CONSTRUCTION REVIEW SERVICES

RELATING TO THE CONTRACTOR'S SAFETY PRECAUTIONS OR TO MEANS,

L. STRIP CONDUCTOR INSULATION TO THE EXPOSED LENGTH AS RECOMMENDED BY

THE MANUFACTURER FOR THE CONNECTOR USED.

M. TAPE UNINSULATED CONDUCTORS AND CONNECTORS WITH ELECTRICAL TAPE TO

150 PERCENT OF INSULATION RATING OF CONDUCTOR.

N. INSTALL COMPRESSION CONNECTORS FOR COPPER CONDUCTOR SPLICES AND

TAPS, 6 AWG AND LARGER.

2. EPSS: EMERGENCY POWER SUPPLY SYSTEM.

3. OPERATIONAL BANDWIDTH: THE TOTAL VARIATION FROM THE LOWEST TO

HIGHEST VALUE OF A PARAMETER OVER THE RANGE OF CONDITIONS

INDICATED, EXPRESSED AS A PERCENTAGE OF THE NOMINAL VALUE OF THE

PARAMETER.

301 W. Northern Lights Blvd.

Suite 200

Anchorage, AK 99503

ph 907.276.6664

PERMIT STAMP

www.coffman.com AECC249

C. ACTION SUBMITTALS

1. PRODUCT DATA: FOR EACH TYPE OF PRODUCT.

a. INCLUDE RATED CAPACITIES, OPERATING CHARACTERISTICS, ELECTRICAL

CHARACTERISTICS, AND FURNISHED SPECIALTIES AND ACCESSORIES.

b. INCLUDE THERMAL DAMAGE CURVE FOR GENERATOR.

c. INCLUDE TIME-CURRENT CHARACTERISTIC CURVES FOR GENERATOR

PROTECTIVE DEVICE.

d. INCLUDE FUEL CONSUMPTION IN GALLONS PER HOUR AT 0.8 POWER FACTOR

AT 0.5, 0.75, AND 1.0 TIMES GENERATOR CAPACITY.

e. INCLUDE GENERATOR EFFICIENCY AT 0.8 POWER FACTOR AT 0.5, 0.75, AND 1.0

TIMES GENERATOR CAPACITY.

f. INCLUDE AIRFLOW REQUIREMENTS FOR COOLING AND COMBUSTION AIR IN

CUBIC FEET PER MINUTE AT 0.8 POWER FACTOR, WITH AIR-SUPPLY

TEMPERATURE OF 95, 80, 70, AND 50 DEG F. PROVIDE DRAWINGS INDICATING

REQUIREMENTS AND LIMITATIONS FOR LOCATION OF AIR INTAKE AND

EXHAUSTS.

g. INCLUDE GENERATOR CHARACTERISTICS, INCLUDING, BUT NOT LIMITED TO,

KILOWATT RATING, EFFICIENCY, REACTANCES, AND SHORT-CIRCUIT

CURRENT CAPABILITY.

2. SHOP DRAWINGS:

a. INCLUDE PLANS AND ELEVATIONS FOR ENGINE GENERATOR AND OTHER

COMPONENTS SPECIFIED.

b. INCLUDE DETAILS OF EQUIPMENT ASSEMBLIES. INDICATE DIMENSIONS,

WEIGHTS, LOADS, REQUIRED CLEARANCES, METHOD OF FIELD ASSEMBLY,

COMPONENTS, AND LOCATION AND SIZE OF EACH FIELD CONNECTION.

c. IDENTIFY FLUID DRAIN PORTS AND CLEARANCE REQUIREMENTS FOR PROPER

FLUID DRAIN.

d. DESIGN CALCULATIONS FOR SELECTING VIBRATION ISOLATORS AND SEISMIC

RESTRAINTS AND FOR DESIGNING VIBRATION ISOLATION BASES.

e. VIBRATION ISOLATION BASE DETAILS: DETAIL FABRICATION INCLUDING

ANCHORAGES AND ATTACHMENTS TO STRUCTURE AND TO SUPPORTED

EQUIPMENT. INCLUDE BASE WEIGHTS.

f. INCLUDE DIAGRAMS FOR POWER, SIGNAL, AND CONTROL WIRING. COMPLETE

SCHEMATIC, WIRING, AND INTERCONNECTION DIAGRAMS SHOWING TERMINAL

MARKINGS FOR ENGINE GENERATORS AND FUNCTIONAL RELATIONSHIP

BETWEEN ALL ELECTRICAL COMPONENTS.

D. CLOSEOUT SUBMITTALS

1. OPERATION AND MAINTENANCE DATA: FOR PACKAGED ENGINE GENERATORS

TO INCLUDE IN EMERGENCY, OPERATION, AND MAINTENANCE MANUALS.

a. INCLUDE THE FOLLOWING:

a.a. LIST OF TOOLS AND REPLACEMENT ITEMS RECOMMENDED TO BE

STORED AT PROJECT FOR READY ACCESS. INCLUDE PART AND

DRAWING NUMBERS, CURRENT UNIT PRICES, AND SOURCE OF SUPPLY.

a.b. OPERATING INSTRUCTIONS LAMINATED AND MOUNTED ADJACENT TO

GENERATOR LOCATION.

a.c. TRAINING PLAN.

E. WARRANTY

1. MANUFACTURER'S WARRANTY: MANUFACTURER AGREES TO REPAIR OR

REPLACE COMPONENTS OF PACKAGED ENGINE GENERATORS AND

ASSOCIATED AUXILIARY COMPONENTS THAT FAIL IN MATERIALS OR

WORKMANSHIP WITHIN SPECIFIED WARRANTY PERIOD.

b. WARRANTY PERIOD: 2 YEARS FROM DATE OF SUBSTANTIAL COMPLETION.

TOM E. LOONEY

Jan 30, 2025

TERED

No. EE9369

PROFESSIO

ENGI

CHUGIAK SENIOR

CENTER GENERATOR

C REPLACEMENT

MUNICIPALITY OF

ANCHORAGE

100% ISSUED FOR

CONSTRUCTION

REV DATE

PROJ. NO.

DRAWN

CHECKED

DATE

DESCRIPTION

241484

ALM

TEL

01/30/2025

C COFFMAN ENGINEERS INC.

SHEET TITLE:

ELECTRICAL

SPECIFICATIONS

SHEET NO:

E-002

2.6 DIESEL - ENGINE DRIVE GENERATOR SET

h. START TIME:

a. OPERATING AND SAFETY INDICATIONS, PROTECTIVE DEVICES, BASIC SYSTEM

PART 2

PRODUCTS

a.a. COMPLY WITH NFPA 110, LEVEL 2, TYPE 10 SYSTEM REQUIREMENTS.

A. DIESEL-ENGINE-DRIVEN GENERATOR SETS

D. DIESEL ENGINE

1. DESIGN BASED ON CUMMINS NORTHWEST DIESEL-ENGINE GENERATOR MODEL NUMBER

C60D6.

2. SOURCE LIMITATIONS: OBTAIN PACKAGED ENGINE GENERATORS AND AUXILIARY

COMPONENTS FROM SINGLE SOURCE FROM SINGLE MANUFACTURER.

B. PERFORMANCE REQUIREMENTS

1. NFPA COMPLIANCE:

a. COMPLY WITH NFPA 37.

b. COMPLY WITH NFPA 70.

c. COMPLY WITH NFPA 110 REQUIREMENTS FOR LEVEL 2 EPSS.

1. FUEL: ASTM D975, DIESEL FUEL OIL, GRADE 2-D S15.

2. RATED ENGINE SPEED: 1800 RPM.

3. LUBRICATION SYSTEM: ENGINE OR SKID-MOUNTED.

a. FILTER AND STRAINER: RATED TO REMOVE 90 PERCENT OF PARTICLES 5

MICROMETERS AND SMALLER WHILE PASSING FULL FLOW.

b. THERMOSTATIC CONTROL VALVE: CONTROL FLOW IN SYSTEM TO MAINTAIN

OPTIMUM OIL TEMPERATURE. UNIT SHALL BE CAPABLE OF FULL FLOW AND IS

DESIGNED TO BE FAIL-SAFE.

c. CRANKCASE DRAIN: ARRANGED FOR COMPLETE GRAVITY DRAINAGE TO AN EASILY

REMOVABLE CONTAINER WITH NO DISASSEMBLY AND WITHOUT USE OF PUMPS,

CONTROLS, AND ENGINE GAGES SHALL BE GROUPED IN A COMMON CONTROL AND

MONITORING PANEL MOUNTED ON THE ENGINE GENERATOR. MOUNTING METHOD

SHALL ISOLATE THE CONTROL PANEL FROM ENGINE GENERATOR VIBRATION.

PANEL SHALL BE POWERED FROM THE ENGINE GENERATOR BATTERY.

6. CONTROL AND MONITORING PANEL:

a. DIGITAL ENGINE GENERATOR CONTROLLER WITH INTEGRATED LCD DISPLAY,

CONTROLS, AND MICROPROCESSOR, CAPABLE OF LOCAL AND REMOTE CONTROL,

MONITORING, AND PROGRAMMING, WITH BATTERY BACKUP.

b. INSTRUMENTS: LOCATED ON THE CONTROL AND MONITORING PANEL AND

VIEWABLE DURING OPERATION.

a.a. ENGINE LUBRICATING-OIL PRESSURE GAGE.

a.b. ENGINE-COOLANT TEMPERATURE GAGE.

a.c. DC VOLTMETER (ALTERNATOR BATTERY CHARGING).

PERMIT STAMP

a. INITIATES A GENERATOR OVERLOAD ALARM WHEN GENERATOR HAS OPERATED AT

AN OVERLOAD EQUIVALENT TO 110 PERCENT OF FULL-RATED LOAD FOR 60

SECONDS. INDICATION FOR THIS ALARM IS INTEGRATED WITH OTHER ENGINE

GENERATOR MALFUNCTION ALARMS. CONTACTS SHALL BE AVAILABLE FOR LOAD

SHED FUNCTIONS.

b. UNDER SINGLE- OR THREE-PHASE FAULT CONDITIONS, REGULATES GENERATOR

301 W. Northern Lights Blvd.

Suite 200

Anchorage, AK 99503

ph 907.276.6664

www.coffman.com AECC249

2. UL COMPLIANCE: COMPLY WITH UL 2200.

3. ENGINE EXHAUST EMISSIONS: COMPLY WITH EPA TIER 4 REQUIREMENTS AND

APPLICABLE STATE AND LOCAL GOVERNMENT REQUIREMENTS.

4. NOISE EMISSION: COMPLY WITH APPLICABLE STATE AND LOCAL GOVERNMENT

REQUIREMENTS FOR MAXIMUM NOISE LEVEL AT ADJACENT PROPERTY BOUNDARIES DUE

SIPHONS, SPECIAL TOOLS, OR APPLIANCES.

4. INTEGRAL COOLING SYSTEM: CLOSED LOOP, LIQUID COOLED, WITH RADIATOR FACTORY

MOUNTED ON ENGINE GENERATOR SET MOUNTING FRAME AND INTEGRAL

ENGINE-DRIVEN COOLANT PUMP.

a. COOLANT: SOLUTION OF 50 PERCENT ETHYLENE-GLYCOL-BASED ANTIFREEZE AND

a.d. RUNNING-TIME METER.

b. CONTROLS AND PROTECTIVE DEVICES: CONTROLS, SHUTDOWN DEVICES, AND

COMMON ALARM INDICATION, INCLUDING THE FOLLOWING:

b.a. CRANKING CONTROL EQUIPMENT.

TO 300 PERCENT OF RATED FULL-LOAD CURRENT FOR UP TO 10 SECONDS.

c. AS OVERCURRENT HEATING EFFECT ON THE GENERATOR APPROACHES THE

THERMAL DAMAGE POINT OF THE UNIT, PROTECTOR SWITCHES THE EXCITATION

SYSTEM OFF, OPENS THE GENERATOR DISCONNECT DEVICE, AND SHUTS DOWN

THE ENGINE GENERATOR.

TOM E. LOONEY

Jan 30, 2025

TERED

No. EE9369

PROFESSIONA

ENG

TO SOUND EMITTED BY ENGINE GENERATOR INCLUDING ENGINE, ENGINE EXHAUST,

50 PERCENT WATER, WITH ANTICORROSION ADDITIVES AS RECOMMENDED BY

b.b. RUN-OFF-AUTO SWITCH.

d. SENSES CLEARING OF A FAULT BY OTHER OVERCURRENT DEVICES AND

ENGINE COOLING-AIR INTAKE AND DISCHARGE, AND OTHER COMPONENTS OF

INSTALLATION.

5. ENVIRONMENTAL CONDITIONS: ENGINE GENERATOR SYSTEM SHALL WITHSTAND THE

FOLLOWING ENVIRONMENTAL CONDITIONS WITHOUT MECHANICAL OR ELECTRICAL

DAMAGE OR DEGRADATION OF PERFORMANCE CAPABILITY:

a. AMBIENT TEMPERATURE: 41 TO 104 DEG F.

b. RELATIVE HUMIDITY: ZERO TO 95 PERCENT.

c. ALTITUDE: SEA LEVEL TO 500.

C. ENGINE GENERATOR ASSEMBLY DESCRIPTION

1. FACTORY-ASSEMBLED AND -TESTED, WATER-COOLED ENGINE, WITH BRUSHLESS

GENERATOR AND ACCESSORIES.

2. ELECTRICAL COMPONENTS, DEVICES, AND ACCESSORIES: LISTED AND LABELED AS

ENGINE MANUFACTURER.

b. SIZE OF RADIATOR: ADEQUATE TO CONTAIN EXPANSION OF TOTAL SYSTEM

COOLANT FROM COLD START TO 110 PERCENT LOAD CONDITION.

c. TEMPERATURE CONTROL: SELF-CONTAINED, THERMOSTATIC-CONTROL VALVE

MODULATES COOLANT FLOW AUTOMATICALLY TO MAINTAIN OPTIMUM CONSTANT

COOLANT TEMPERATURE AS RECOMMENDED BY ENGINE MANUFACTURER.

d. COOLANT HOSE: FLEXIBLE ASSEMBLY WITH INSIDE SURFACE OF NONPOROUS

RUBBER AND OUTER COVERING OF AGING-, UV-, AND ABRASION-RESISTANT

FABRIC.

a. RATING: 50-PSIG MAXIMUM WORKING PRESSURE WITH COOLANT AT 180 DEG F,

AND NONCOLLAPSIBLE UNDER VACUUM.

b. END FITTINGS: FLANGES OR STEEL PIPE NIPPLES WITH CLAMPS TO SUIT PIPING

AND EQUIPMENT CONNECTIONS.

b.c. CONTROL SWITCH NOT IN AUTOMATIC POSITION ALARM.

b.d. OVERCRANK ALARM.

b.e. OVERCRANK SHUTDOWN DEVICE.

b.f. LOW-WATER TEMPERATURE ALARM.

b.g. HIGH ENGINE TEMPERATURE PREALARM.

b.h. HIGH ENGINE TEMPERATURE.

b.i. HIGH ENGINE TEMPERATURE SHUTDOWN DEVICE.

b.j. OVERSPEED ALARM.

b.k. OVERSPEED SHUTDOWN DEVICE.

b.l. COOLANT LOW-LEVEL ALARM.

CONTROLS RECOVERY OF RATED VOLTAGE TO AVOID OVERSHOOT.

H. GENERATOR, EXCITER, AND VOLTAGE REGULATOR

1. COMPLY WITH NEMA MG 1.

2. DRIVE: GENERATOR SHAFT SHALL BE DIRECTLY CONNECTED TO ENGINE SHAFT.

EXCITER SHALL BE ROTATED INTEGRALLY WITH GENERATOR ROTOR.

3. ELECTRICAL INSULATION: CLASS H.

4. STATOR-WINDING LEADS: BROUGHT OUT TO TERMINAL BOX TO PERMIT FUTURE

RECONNECTION FOR OTHER VOLTAGES IF REQUIRED. OUTPUT VOLTAGE ADJUSTMENT

IN "RANGE" PARAGRAPH BELOW INCREASES IN EACH OF THE THREE RANGES.

5. RANGE: PROVIDE RANGE OF OUTPUT VOLTAGE BY ADJUSTING THE EXCITATION LEVEL.

6. CONSTRUCTION SHALL PREVENT MECHANICAL, ELECTRICAL, AND THERMAL DAMAGE

DUE TO VIBRATION, OVERSPEED UP TO 125 PERCENT OF RATING, AND HEAT DURING

CHUGIAK SENIOR

CENTER GENERATOR

C REPLACEMENT

DEFINED IN NFPA 70, BY A QUALIFIED TESTING AGENCY, AND MARKED FOR INTENDED

LOCATION AND USE.

3. POWER RATING: STANDBY.

5. MUFFLER/SILENCER:

a. COMMERCIAL TYPE, SIZED AS RECOMMENDED BY ENGINE MANUFACTURER AND

SELECTED WITH EXHAUST PIPING SYSTEM TO NOT EXCEED ENGINE

b.m. COOLANT LOW-LEVEL SHUTDOWN DEVICE.

b.n. COOLANT HIGH-TEMPERATURE PREALARM.

b.o. COOLANT HIGH-TEMPERATURE ALARM.

OPERATION AT 110 PERCENT OF RATED CAPACITY.

7. ENCLOSURE: DRIP PROOF.

8. INSTRUMENT TRANSFORMERS: MOUNTED WITHIN GENERATOR ENCLOSURE.

4. EPSS CLASS: ENGINE GENERATOR SHALL BE CLASSIFIED AS A CLASS 6 ACCORDING TO

NFPA 110.

5. SERVICE LOAD: 60 KW/75 KVA.

6. POWER FACTOR: 0.8, LAGGING.

MANUFACTURER'S ENGINE BACKPRESSURE REQUIREMENTS.

a. MINIMUM SOUND ATTENUATION OF 12 DB AT 500 HZ.

b. SOUND LEVEL MEASURED AT A DISTANCE OF 25 FEET FROM EXHAUST DISCHARGE

AFTER INSTALLATION IS COMPLETE SHALL BE 90 DBA OR LESS.

b.p. COOLANT LOW-TEMPERATURE ALARM.

b.q. COOLANT HIGH-TEMPERATURE SHUTDOWN DEVICE.

b.r. EPS LOAD INDICATOR.

9. VOLTAGE REGULATOR: SOLID-STATE TYPE, SEPARATE FROM EXCITER, PROVIDING

PERFORMANCE AS SPECIFIED.

a. ADJUSTING RHEOSTAT ON CONTROL AND MONITORING PANEL: PROVIDE PLUS OR

MINUS 5 PERCENT ADJUSTMENT OF OUTPUT-VOLTAGE OPERATING BAND.

MUNICIPALITY OF

ANCHORAGE

7. FREQUENCY: 60 HZ.

6. STARTING SYSTEM: 12-V ELECTRIC, WITH NEGATIVE GROUND.

b.s. BATTERY HIGH-VOLTAGE ALARM.

b. MAINTAIN VOLTAGE WITHIN 30 PERCENT ON ONE STEP, FULL LOAD.

8. VOLTAGE: 208-V AC.

a. COMPONENTS: SIZED SO THEY ARE NOT DAMAGED DURING A FULL

b.t. LOW CRANKING VOLTAGE ALARM.

c. PROVIDE ANTI-HUNT PROVISION TO STABILIZE VOLTAGE.

9. PHASE: THREE-PHASE, FOUR WIRE, WYE.

ENGINE-CRANKING CYCLE WITH AMBIENT TEMPERATURE AT MAXIMUM SPECIFIED

b.u. BATTERY-CHARGER MALFUNCTION ALARM.

d. MAINTAIN FREQUENCY WITHIN 5 PERCENT AND STABILIZE AT RATED FREQUENCY

10. INDUCTION METHOD: TURBOCHARGED.

IN "PERFORMANCE REQUIREMENTS" ARTICLE.

b.v. BATTERY LOW-VOLTAGE ALARM.

WITHIN 2 SECONDS.

100% ISSUED FOR

11. GOVERNOR: ADJUSTABLE ISOCHRONOUS, WITH SPEED SENSING.

12. MOUNTING FRAME: STRUCTURAL STEEL FRAMEWORK TO MAINTAIN ALIGNMENT OF

MOUNTED COMPONENTS WITHOUT DEPENDING ON CONCRETE FOUNDATION. PROVIDE

b. CRANKING MOTOR: HEAVY-DUTY UNIT THAT AUTOMATICALLY ENGAGES AND

RELEASES FROM ENGINE FLYWHEEL WITHOUT BINDING.

c. CRANKING CYCLE: AS REQUIRED BY NFPA 110 FOR SYSTEM LEVEL SPECIFIED.

b.w. LAMP TEST.

b.x. CONTACTS FOR LOCAL AND REMOTE COMMON ALARM.

b.y. LOW-STARTING HYDRAULIC PRESSURE ALARM.

10.WINDINGS: TWO-THIRDS PITCH STATOR WINDING AND FULLY LINKED AMORTISSEUR

WINDING.

11.SUBTRANSIENT REACTANCE: 12 PERCENT, MAXIMUM.

CONSTRUCTION

LIFTING ATTACHMENTS SIZED AND SPACED TO PREVENT DEFLECTION OF BASE DURING

LIFTING AND MOVING.

d. BATTERY CABLE: SIZE AS RECOMMENDED BY ENGINE MANUFACTURER FOR CABLE

LENGTH INDICATED. INCLUDE REQUIRED INTERCONNECTING CONDUCTORS AND

CONNECTION ACCESSORIES.

b.z. REMOTE MANUAL STOP SHUTDOWN DEVICE.

7. COMMON REMOTE PANEL WITH COMMON AUDIBLE ALARM: INCLUDE NECESSARY

I. VIBRATION ISOLATION DEVICES

1. ELASTOMERIC ISOLATOR PADS: OIL- AND WATER-RESISTANT ELASTOMER OR NATURAL

13. CAPACITIES AND CHARACTERISTICS:

a. POWER OUTPUT RATINGS: NOMINAL RATINGS AS INDICATED AT 0.8 POWER

FACTOR EXCLUDING POWER REQUIRED FOR THE CONTINUED AND REPEATED

OPERATION OF THE UNIT AND AUXILIARIES.

e. BATTERY-CHARGING ALTERNATOR: FACTORY MOUNTED ON ENGINE WITH

SOLID-STATE VOLTAGE REGULATION AND 35-A MINIMUM CONTINUOUS RATING.

E. DIESEL FUEL-OIL SYSTEM

CONTACTS AND TERMINALS IN CONTROL AND MONITORING PANEL. REMOTE PANEL

SHALL BE POWERED FROM THE ENGINE GENERATOR BATTERY.

8. SUPPORTING ITEMS: INCLUDE SENSORS, TRANSDUCERS, TERMINALS, RELAYS, AND

OTHER DEVICES AND INCLUDE WIRING REQUIRED TO SUPPORT SPECIFIED ITEMS.

RUBBER, ARRANGED IN SINGLE OR MULTIPLE LAYERS, MOLDED WITH A NONSLIP

PATTERN AND GALVANIZED-STEEL BASEPLATES OF SUFFICIENT STIFFNESS FOR

UNIFORM LOADING OVER PAD AREA, AND FACTORY CUT TO SIZES THAT MATCH

REQUIREMENTS OF SUPPORTED EQUIPMENT.

b. NAMEPLATES: FOR EACH MAJOR SYSTEM COMPONENT TO IDENTIFY

1. COMPLY WITH NFPA 37.

LOCATE SENSORS AND OTHER SUPPORTING ITEMS ON ENGINE OR GENERATOR UNLESS

a. MATERIAL: STANDARD NEOPRENE SEPARATED BY STEEL SHIMS.

MANUFACTURER'S NAME AND ADDRESS, MODEL, AND SERIAL NUMBER OF

2. PIPING: FUEL-OIL PIPING SHALL BE SCHEDULE 40 BLACK STEEL. CAST IRON, ALUMINUM,

OTHERWISE INDICATED.

3. RESTRAINED SPRING ISOLATORS: FREESTANDING, STEEL, OPEN-SPRING ISOLATORS

COMPONENT.

COPPER, AND GALVANIZED STEEL SHALL NOT BE USED IN THE FUEL-OIL SYSTEM.

G. GENERATOR OVERCURRENT AND FAULT PROTECTION

WITH SEISMIC RESTRAINT.

14. ENGINE GENERATOR PERFORMANCE:

a. STEADY-STATE VOLTAGE OPERATIONAL BANDWIDTH: 3 PERCENT OF RATED

OUTPUT VOLTAGE FROM NO LOAD TO FULL LOAD.

3. MAIN FUEL PUMP: MOUNTED ON ENGINE TO PROVIDE PRIMARY FUEL FLOW UNDER

STARTING AND LOAD CONDITIONS.

4. FUEL FILTERING: REMOVE WATER AND CONTAMINANTS LARGER THAN 1 MICRON.

1. OVERCURRENT PROTECTIVE DEVICES SHALL BE COORDINATED TO OPTIMIZE SELECTIVE

TRIPPING WHEN A SHORT CIRCUIT OCCURS.

a. OVERCURRENT PROTECTIVE DEVICES FOR THE ENTIRE EPSS SHALL BE

a. HOUSING: STEEL WITH RESILIENT VERTICAL-LIMIT STOPS TO PREVENT SPRING

EXTENSION DUE TO WIND LOADS OR IF WEIGHT IS REMOVED; FACTORY-DRILLED

BASEPLATE BONDED TO 1/4-INCH-THICK, ELASTOMERIC ISOLATOR PAD ATTACHED

TO BASEPLATE UNDERSIDE; AND ADJUSTABLE EQUIPMENT-MOUNTING AND

REV DATE

PROJ. NO.

DESCRIPTION

241484

b. TRANSIENT VOLTAGE PERFORMANCE: NOT MORE THAN 20 PERCENT VARIATION

5. RELIEF-BYPASS VALVE: AUTOMATICALLY REGULATES PRESSURE IN FUEL LINE AND

COORDINATED TO OPTIMIZE SELECTIVE TRIPPING WHEN A SHORT CIRCUIT

LEVELING BOLT THAT ACTS AS BLOCKING DURING INSTALLATION.

DRAWN

ALM

FOR 50 PERCENT STEP-LOAD INCREASE OR DECREASE. VOLTAGE SHALL RECOVER

AND REMAIN WITHIN THE STEADY-STATE OPERATING BAND WITHIN THREE

SECONDS.

c. STEADY-STATE FREQUENCY OPERATIONAL BANDWIDTH: 0.5 PERCENT OF RATED

FREQUENCY FROM NO LOAD TO FULL LOAD.

d. STEADY-STATE FREQUENCY STABILITY: WHEN SYSTEM IS OPERATING AT ANY

CONSTANT LOAD WITHIN THE RATED LOAD, THERE SHALL BE NO RANDOM SPEED

VARIATIONS OUTSIDE THE STEADY-STATE OPERATIONAL BAND AND NO HUNTING

RETURNS EXCESS FUEL TO SOURCE.

F. CONTROL AND MONITORING

1. AUTOMATIC STARTING SYSTEM SEQUENCE OF OPERATION: WHEN MODE-SELECTOR

SWITCH ON THE CONTROL AND MONITORING PANEL IS IN THE AUTOMATIC POSITION,

REMOTE-CONTROL CONTACTS IN ONE OR MORE SEPARATE AUTOMATIC TRANSFER

SWITCHES INITIATE STARTING AND STOPPING OF ENGINE GENERATOR. WHEN

MODE-SELECTOR SWITCH IS SWITCHED TO THE ON POSITION, ENGINE GENERATOR

STARTS. THE OFF POSITION OF SAME SWITCH INITIATES ENGINE GENERATOR

OCCURS. COORDINATION OF PROTECTIVE DEVICES SHALL CONSIDER BOTH

UTILITY AND EPSS AS THE VOLTAGE SOURCE.

b. OVERCURRENT PROTECTIVE DEVICES FOR THE EPSS SHALL BE ACCESSIBLE ONLY

TO AUTHORIZED PERSONNEL.

2. GENERATOR OVERCURRENT PROTECTIVE DEVICE:

a. MOLDED-CASE CIRCUIT BREAKER, THERMAL-MAGNETIC TYPE; 100 PERCENT

RATED; COMPLYING WITH UL 489:

b. OUTSIDE SPRING DIAMETER: NOT LESS THAN 80 PERCENT OF COMPRESSED

HEIGHT OF THE SPRING AT RATED LOAD.

c. MINIMUM ADDITIONAL TRAVEL: 50 PERCENT OF REQUIRED DEFLECTION AT RATED

LOAD.

d. LATERAL STIFFNESS: MORE THAN 80 PERCENT OF RATED VERTICAL STIFFNESS.

e. OVERLOAD CAPACITY: SUPPORT 200 PERCENT OF RATED LOAD, FULLY

COMPRESSED, WITHOUT DEFORMATION OR FAILURE.

CHECKED

DATE

TEL

01/30/2025

C COFFMAN ENGINEERS INC.

SHEET TITLE:

ELECTRICAL

OR SURGING OF SPEED.

e. TRANSIENT FREQUENCY PERFORMANCE: LESS THAN 5 PERCENT VARIATION FOR

50 PERCENT STEP-LOAD INCREASE OR DECREASE. FREQUENCY SHALL RECOVER

SHUTDOWN. WHEN ENGINE GENERATOR IS RUNNING, SPECIFIED SYSTEM OR

EQUIPMENT FAILURES OR DERANGEMENTS AUTOMATICALLY SHUT DOWN ENGINE

GENERATOR AND INITIATE ALARMS.

a. TRIPPING CHARACTERISTIC: DESIGNED SPECIFICALLY FOR GENERATOR

PROTECTION.

b. TRIP RATING: MATCHED TO GENERATOR OUTPUT RATING.

f. MINIMUM DEFLECTION: 1 INCH.

4. VIBRATION ISOLATION DEVICES SHALL NOT BE USED TO ACCOMMODATE

MISALIGNMENTS OR TO MAKE BENDS.

SPECIFICATIONS

AND REMAIN WITHIN THE STEADY-STATE OPERATING BAND WITHIN FIVE SECONDS. 2. MANUAL STARTING SYSTEM SEQUENCE OF OPERATION: SWITCHING ON-OFF SWITCH ON

c. SHUNT TRIP: CONNECTED TO TRIP BREAKER WHEN ENGINE GENERATOR IS SHUT

f. OUTPUT WAVEFORM: AT NO LOAD, HARMONIC CONTENT MEASURED LINE TO LINE

OR LINE TO NEUTRAL SHALL NOT EXCEED 5 PERCENT TOTAL AND 3 PERCENT FOR

SINGLE HARMONICS. TELEPHONE INFLUENCE FACTOR, DETERMINED ACCORDING

TO NEMA MG 1, SHALL NOT EXCEED 50 PERCENT.

THE GENERATOR CONTROL PANEL TO THE ON POSITION STARTS ENGINE GENERATOR.

THE OFF POSITION OF SAME SWITCH INITIATES ENGINE GENERATOR SHUTDOWN. WHEN

ENGINE GENERATOR IS RUNNING, SPECIFIED SYSTEM OR EQUIPMENT FAILURES OR

DERANGEMENTS AUTOMATICALLY SHUT DOWN ENGINE GENERATOR AND INITIATE

DOWN BY OTHER PROTECTIVE DEVICES.

d. MOUNTING: ADJACENT TO, OR INTEGRATED WITH, CONTROL AND MONITORING

PANEL.

J. CONTRACTOR SHALL PROVIDE A DEFERRED SUBMITTAL FOR THE SEISMIC RESTRAINT OF

THE NEW GENERATOR. THE DEFERRED SUBMITTAL SHALL INCLUDE CALCULATIONS AND

DRAWING(S) STAMPED BY AN ALASKA REGISTERED CIVIL/STRUCTURAL ENGINEER.

K. FINISHES

g. SUSTAINED SHORT-CIRCUIT CURRENT: FOR A THREE-PHASE, BOLTED SHORT

CIRCUIT AT SYSTEM OUTPUT TERMINALS, SYSTEM SHALL SUPPLY A MINIMUM OF

250 PERCENT OF RATED FULL-LOAD CURRENT FOR NOT LESS THAN 10 SECONDS

AND THEN CLEAR THE FAULT AUTOMATICALLY, WITHOUT DAMAGE TO GENERATOR

ALARMS.

3. PROVIDE MINIMUM RUN TIME CONTROL SET FOR 15 MINUTES WITH OVERRIDE ONLY BY

OPERATION OF A REMOTE EMERGENCY-STOP SWITCH.

4. COMPLY WITH UL 508A.

3. GENERATOR PROTECTOR: MICROPROCESSOR-BASED UNIT SHALL CONTINUOUSLY

MONITOR CURRENT LEVEL IN EACH PHASE OF GENERATOR OUTPUT, INTEGRATE

GENERATOR HEATING EFFECT OVER TIME, AND PREDICT WHEN THERMAL DAMAGE OF

ALTERNATOR WILL OCCUR. WHEN SIGNALED BY GENERATOR PROTECTOR OR OTHER

ENGINE GENERATOR PROTECTIVE DEVICES, A SHUNT-TRIP DEVICE IN THE GENERATOR

1. INDOOR AND OUTDOOR ENCLOSURES AND COMPONENTS: MANUFACTURER'S STANDARD

FINISH OVER CORROSION-RESISTANT PRETREATMENT AND COMPATIBLE PRIMER.

SHEET NO:

E-003

SYSTEM COMPONENTS.

5. CONFIGURATION:

DISCONNECT SWITCH SHALL OPEN THE SWITCH TO DISCONNECT THE GENERATOR FROM

LOAD CIRCUITS. PROTECTOR PERFORMS THE FOLLOWING FUNCTIONS:

L. SOURCE QUALITY CONTROL

1. PROTOTYPE TESTING: FACTORY TEST ENGINE GENERATOR USING SAME ENGINE MODEL,

CONSTRUCTED OF IDENTICAL OR EQUIVALENT COMPONENTS AND EQUIPPED WITH

IDENTICAL OR EQUIVALENT ACCESSORIES.

TESTS: COMPLY WITH IEEE 115 AND WITH NFPA 110, LEVEL 2 ENERGY CONVERTERS.

PART 3

EXECUTION

A. EXAMINATION

1. EXAMINE AREAS, EQUIPMENT BASES, AND CONDITIONS, WITH INSTALLER PRESENT, FOR

COMPLIANCE WITH REQUIREMENTS FOR INSTALLATION AND OTHER CONDITIONS

AFFECTING PACKAGED ENGINE GENERATOR PERFORMANCE.

2. EXAMINE ROUGHING-IN FOR PIPING SYSTEMS AND ELECTRICAL CONNECTIONS. VERIFY

ACTUAL LOCATIONS OF CONNECTIONS BEFORE PACKAGED ENGINE GENERATOR

INSTALLATION.

3. PROCEED WITH INSTALLATION ONLY AFTER UNSATISFACTORY CONDITIONS HAVE BEEN

CORRECTED.

CONNECTION, AND INTEGRITY OF EACH ELEMENT OF ENGINE GENERATOR SYSTEM

BEFORE AND DURING SYSTEM OPERATION. CHECK FOR AIR, EXHAUST, AND FLUID

LEAKS.

2. COORDINATE TESTS WITH TESTS FOR TRANSFER SWITCHES AND RUN THEM

CONCURRENTLY.

3. LEAK TEST: AFTER INSTALLATION, CHARGE EXHAUST, COOLANT, AND FUEL SYSTEMS

AND TEST FOR LEAKS. REPAIR LEAKS AND RETEST UNTIL NO LEAKS EXIST.

4. OPERATIONAL TEST: AFTER ELECTRICAL CIRCUITRY HAS BEEN ENERGIZED, START UNITS

TO CONFIRM PROPER MOTOR ROTATION AND UNIT OPERATION FOR GENERATOR AND

ASSOCIATED EQUIPMENT.

5. RETEST: CORRECT DEFICIENCIES IDENTIFIED BY TESTS AND OBSERVATIONS, AND

RETEST UNTIL SPECIFIED REQUIREMENTS ARE MET.

6. REPORT RESULTS OF TESTS AND INSPECTIONS IN WRITING. RECORD ADJUSTABLE

RELAY SETTINGS AND MEASURED INSULATION RESISTANCES, TIME DELAYS, AND OTHER

VALUES AND OBSERVATIONS. ATTACH A LABEL OR TAG TO EACH TESTED COMPONENT

INDICATING SATISFACTORY COMPLETION OF TESTS.

B. PREPARATION

F. DEMONSTRATION

1. INTERRUPTION OF EXISTING ELECTRICAL SERVICE: DO NOT INTERRUPT ELECTRICAL

SERVICE TO FACILITIES OCCUPIED BY OWNER OR OTHERS UNLESS PERMITTED UNDER

THE FOLLOWING CONDITIONS AND THEN ONLY AFTER ARRANGING TO PROVIDE

TEMPORARY ELECTRICAL SERVICE ACCORDING TO REQUIREMENTS INDICATED:

1. ENGAGE A FACTORY-AUTHORIZED SERVICE REPRESENTATIVE TO TRAIN OWNER'S

MAINTENANCE PERSONNEL TO ADJUST, OPERATE, AND MAINTAIN PACKAGED ENGINE

GENERATORS.

c. NOTIFY OWNER NO FEWER THAN TWO WORKING DAYS IN ADVANCE OF PROPOSED

INTERRUPTION OF ELECTRICAL SERVICE.

d. DO NOT PROCEED WITH INTERRUPTION OF ELECTRICAL SERVICE WITHOUT OWNER'S

WRITTEN PERMISSION.

C. INSTALLATION

1. COMPLY WITH NECA 1 AND NECA 404.

2. COMPLY WITH PACKAGED ENGINE GENERATOR MANUFACTURERS' WRITTEN

INSTALLATION AND ALIGNMENT INSTRUCTIONS AND WITH NFPA 110.

3. EQUIPMENT MOUNTING:

a. INSTALL PACKAGED ENGINE GENERATORS ON CAST-IN-PLACE CONCRETE

EQUIPMENT BASES. COMPLY WITH REQUIREMENTS ON DRAWINGS FOR EQUIPMENT

BASES AND FOUNDATIONS

b. INSTALL PACKAGED ENGINE GENERATOR WITH VIBRATION ISOLATION DEVICES

DESCRIBED IN SECTION 2.9.

4. INSTALL PACKAGED ENGINE GENERATOR TO PROVIDE ACCESS, WITHOUT REMOVING

CONNECTIONS OR ACCESSORIES, FOR PERIODIC MAINTENANCE.

5. EXHAUST SYSTEM: INSTALL SCHEDULE 40 BLACK STEEL PIPING WITH WELDED JOINTS

AND CONNECT TO ENGINE MUFFLER. RE-USE EXISTING THIMBLE AT CEILING. PIPING

SHALL BE SAME DIAMETER AS MUFFLER OUTLET.

6. INSTALL ELECTRICAL DEVICES FURNISHED BY EQUIPMENT MANUFACTURERS BUT NOT

SPECIFIED TO BE FACTORY MOUNTED.

D. IDENTIFICATION

1. INSTALL A SIGN INDICATING THE GENERATOR NEUTRAL IS BONDED TO THE MAIN

SERVICE NEUTRAL AT THE MAIN SERVICE LOCATION.

E. FIELD QUALITY CONTROL

1. TESTING AGENCY:

a. PERFORM TESTS RECOMMENDED BY MANUFACTURER AND EACH VISUAL AND

MECHANICAL INSPECTION AND ELECTRICAL AND MECHANICAL TEST LISTED IN FIRST

TWO SUBPARAGRAPHS BELOW, AS SPECIFIED IN NETA ATS. CERTIFY COMPLIANCE

WITH TEST PARAMETERS.

a. VISUAL AND MECHANICAL INSPECTION:

a.a. COMPARE EQUIPMENT NAMEPLATE DATA WITH DRAWINGS AND THE

SPECIFICATIONS.

a.b. INSPECT PHYSICAL AND MECHANICAL CONDITION.

a.c. INSPECT ANCHORAGE, ALIGNMENT, AND GROUNDING.

a.d. VERIFY THAT THE UNIT IS CLEAN.

b. ELECTRICAL AND MECHANICAL TESTS:

b.a. TEST PROTECTIVE RELAY DEVICES.

b.b. VERIFY PHASE ROTATION, PHASING, AND SYNCHRONIZED OPERATION AS

REQUIRED BY THE APPLICATION.

b.c. FUNCTIONALLY TEST ENGINE SHUTDOWN FOR LOW OIL PRESSURE,

OVERTEMPERATURE, OVERSPEED, AND OTHER PROTECTION FEATURES AS

APPLICABLE.

b.d. VERIFY CORRECT FUNCTIONING OF THE GOVERNOR AND REGULATOR.

c. NFPA 110 ACCEPTANCE TESTS: PERFORM TESTS REQUIRED BY NFPA 110 THAT ARE

ADDITIONAL TO THOSE SPECIFIED HERE, INCLUDING, BUT NOT LIMITED TO,

SINGLE-STEP FULL-LOAD PICKUP TEST.

d. BATTERY TESTS: EQUALIZE CHARGING OF BATTERY CELLS ACCORDING TO

MANUFACTURER'S WRITTEN INSTRUCTIONS. RECORD INDIVIDUAL CELL VOLTAGES.

a. MEASURE CHARGING VOLTAGE AND VOLTAGES BETWEEN AVAILABLE BATTERY

TERMINALS FOR FULL-CHARGING AND FLOAT-CHARGING CONDITIONS. CHECK

ELECTROLYTE LEVEL AND SPECIFIC GRAVITY UNDER BOTH CONDITIONS.

b. VERIFY THAT MEASUREMENTS ARE WITHIN MANUFACTURER'S SPECIFICATIONS.

d. BATTERY-CHARGER TESTS: VERIFY SPECIFIED RATES OF CHARGE FOR BOTH

EQUALIZING AND FLOAT-CHARGING CONDITIONS.

e. SYSTEM INTEGRITY TESTS: METHODICALLY VERIFY PROPER INSTALLATION,

PERMIT STAMP

301 W. Northern Lights Blvd.

Suite 200

Anchorage, AK 99503

ph 907.276.6664

www.coffman.com AECC249

TOM E. LOONEY

Jan 30, 2025

TERED

No. EE9369

PROFESSIONA

ENG

CHUGIAK SENIOR

CENTER GENERATOR

C REPLACEMENT

MUNICIPALITY OF

ANCHORAGE

100% ISSUED FOR

CONSTRUCTION

REV DATE DESCRIPTION

PROJ. NO.

DRAWN

CHECKED

DATE

241484

ALM

TEL

01/30/2025

C COFFMAN ENGINEERS INC.

SHEET TITLE:

ELECTRICAL

SPECIFICATIONS

SHEET NO:

E-004

This page summarizes the opportunity, including an overview and a preview of the attached documents.

Chugiak Senior Housing Generator Replacement

Attachment Preview

Sign-up for a Free Trial, Government Bid Alerts

See Also