ADDENDUM NO. 1
Date: July 29, 2016
for
Campus Safety Building – Backup Generator
Irvine Valley College - BID No. 323
South Orange County Community College District
General-All project documents including contract documents, drawings, and specifications, shall remain
unchanged with the exception of those elements added, revised, deleted, or clarified by this addendum.
CONTENTS
ADDENDUM ITEMS
INDEX
PAGE 1
ITEMS:
1-1
Questions and Answers
PAGE 2
1-2
Revised Bid Documents
PAGE 3
1-3
Job Walk Sign-In Sheet
Attachment
Page 1 of 8
Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 29, 2016
1-1 Questions and Answers
Q1:
Clarification by District:
A1:
The Pre-Bid Meeting Agenda/Information Sheet distributed during the
Mandatory Job Walk / Conference contained errors. Corrections were
made as follows:
•
•
From:
License:
Contractor’s License A
To:
License:
Contractor’s License B
From:
Project Schedule: Anticipate going to the Board 09-26-2016 with
an early September, 2016 start
Duration: 60 days
To:
Project Schedule: Anticipate going to the Board 09-26-2016 with
an early October, 2016 start
Duration: 60 days
Q2:
The specifications call for a 24 hour fuel tank, and the drawings call for a
72 hour tank, which do you require?
A2:
Provide 72 hour fuel tank. See revised specification section 263213
attached herein.
Q3:
2.8 A, calls for a free standing load bank. Will you accept bids for a
radiator mounted load bank?
A3:
Provide the freestanding load bank per the bid documents.
Q4:
Are there written specifications for the automatic transfer switch, or is it
solely based on the drawings that have been provided?
A4:
See added section 263600 in the specifications attached herein.
Page 2 of 8
Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 29, 2016
1-2 Revised Bid Documents
1-2.1 Revise Notice Calling For Bids document as follows:
•
From:
In accordance with the provisions of California Business and Professions
Code Section 7028.15 and Public Contract Code Section 3300, the
DISTRICT requires that the bidder possess the following classification of
CONTRACTOR’S license at the time the bid is submitted: Class A. Any
bidder not so licensed at the time of the bid opening will be rejected as
non-responsive.
To:
In accordance with the provisions of California Business and Professions
Code Section 7028.15 and Public Contract Code Section 3300, the
DISTRICT requires that the bidder possess the following classification of
CONTRACTOR’S license at the time the bid is submitted: Class B. Any
bidder not so licensed at the time of the bid opening will be rejected as
non-responsive.
•
To delete the prequalification requirement.
1-2.2 The initial bid documents included Technical Specifications / Project Manual. The
following Sections are revised or new (attached herein Page 4):
•
Section 263213 – Engine Generators (Revised)
•
Section 263600 – Transfer Switches (New)
This part of the page left intentionally blank
Page 3 of 8
Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 29, 2016
Project Manual (Revised)
This part of the page left intentionally blank
Page 4 of 8
Project Manual
Irvine Valley College
Campus Safety Building – Backup Generator
DSA File #30-C5
DSA App. #04-115128
Flewelling & Moody, Inc.
Project No. 2668
June 7, 2016
Rev. 7/27/16
TABLE OF CONTENTS
PROJECT MANUAL
SECTION NO.
SECTION TITLE
00005
00008
00010
Signature Page
Project Directory
Table Of Contents
DIVISION 1 GENERAL REQUIREMENTS
(to be provided by Irvine Valley College, except as listed below)
01010
Summary of Work
01311
Additional Requirements for
DSA-Reviewed Projects
01400
Testing and Inspection Requirements
DIVISION 2 SITE WORK
02318
Excavating, Backfilling and Compacting
DIVISION 3 CONCRETE
03310
Concrete Work
DIVISION 4 MASONRY
04230
Reinforced Unit Masonry
NO. OF PAGES
1`
1
4
3
4
3
4
18
6
DIVISION 5 METALS (not used)
DIVISION 6 WOOD AND PLASTICS (not used)
DIVISION 7 THERMAL AND MOISTURE PROTECTION (not used)
DIVISION 8 DOORS AND WINDOWS (not used)
DIVISION 9 FINISHES (not used)
DIVISION 10 SPECIALTIES (not used)
DIVISION 11 EQUIPMENT (not used)
DIVISION 12 FURNISHINGS (not used)
DIVISION 13 SPECIAL CONSTRUCTION (not used)
DIVISION 14 VERTICAL TRANSPORTATION (not used)
DIVISION 15 MECHANICAL (not used)
DIVISION 26 ELECTRICAL
260126
260500
260510
260519
260526
260543
260553
263213
263600
Electrical Acceptance Testing
3
Electrical General Requirements
7
Basic Materials and Methods
12
Low-Voltage Elec. Power Conductors and Cables 7
Grounding and Bonding for Electrical Systems 11
Underground Ducts & Raceways for Elec. Systems 13
Identification for Electrical Systems
13
Engine Generators
24
Transfer Switches
12
END OF TABLE OF CONTENTS
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TABLE OF CONTENTS
00010-1
SECTION 263213
ENGINE GENERATORS
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
SUMMARY
A.
This Section includes packaged engine-generator sets for standby power supply with the
following features:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
B.
Diesel engine.
Generators
Unit-mounted cooling system.
Unit-mounted control and monitoring.
Performance requirements for sensitive loads.
Load banks.
Outdoor enclosure.
Battery charger.
Day tank.
Muffler.
Exhaust piping external to set.
Remote annunciator.
Remote radiator.
Remote stop switch.
Starting battery.
Related Sections include the following:
1.
1.3
Section 260526 "Grounding and Bonding for Electrical Systems."
DEFINITIONS
A.
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.
B.
LP: Liquid petroleum
C.
NETA: InterNational Electrical Testing Association
D.
Steady-State Voltage Modulation: The uniform cyclical variation of voltage within the operational
bandwidth, expressed in Hertz or cycles per second.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-1
1.4
Standards
A.
National Electrical Manufacturer's Association (NEMA).
B.
National Fire Protection Association (NFPA).
C.
California Electric Code (CEC).
D.
California Air Resource Board (CARB).
E.
County of San Diego Air Pollution Control District (SDAPCD).
F.
South Coast Air Quality Management District (SCAQMD)
1.5
ACTION SUBMITTALS
A.
Product Data: For each type of packaged engine generator indicated. Include rated capacities,
operating characteristics, and furnished specialties and accessories. In addition, include the
following:
1.
2.
3.
B.
Thermal damage curve for generator.
Time-current characteristic curves for generator protective device.
Technical data sheets of each equipment.
Shop Drawings: Detail equipment assemblies and indicate dimensions, weights, loads, required
clearances, method of field assembly, components, and location and size of each field
connection.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Dimensioned outline plan and elevation drawings of engine-generator set and other
components specified.
Brake horsepower of engine.
Fuel consumption and floor plans showing fuel line connections, pipe sizes and pump
requirements.
Cooling air requirements and its design.
Noise db level.
Electrical characteristics of generator, voltage regulator, and battery charger.
Load graphs and load calculations to show the capabilities to supply the largest motor
while connected to the full load. It shall also indicate the sequencing of the emergency
load start-up.
Control panel.
Elevations of equipment including front elevation, side elevation, top view for complete
assembly.
Engine and generator details, including governor, turbocharger, exciter, after/intercooler,
day tank, main fuel storage tank and associated required pumping drawings. The work
shall indicate the method of the installation of the electrical, mechanical and plumbing
work.
Certified independent test lab data of generator characteristics, verification of emissions
conformance to latest applicable regulations of CARB and AQMD [or APCD].
Main line circuit breaker.
List showing manufacturer of each major component.
Design Calculations: Signed and sealed by a qualified professional engineer. Calculate
requirements for selecting vibration isolators and seismic restraints and for designing
vibration isolation bases.
Vibration Isolation Base Details: Signed and sealed by a qualified professional engineer.
Detail fabrication, including anchorages and attachments to structure and to supported
equipment. Include base weights.
Wiring Diagrams: Power, signal, and control wiring. Differentiate between manufacturer
installed and field installed wiring.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-2
17.
1.6
Indicate name and place of manufacture of each major component.
INFORMATIONAL SUBMITTALS
A.
Manufacturer Seismic Qualification Certification: Submit certification that day tank, sub-base
tank, engine-generator set, batteries, battery racks, accessories, and components will withstand
seismic forces. Include the following:
1.
Basis for Certification: Indicate whether withstand certification is based on actual test of
assembled components or on calculation.
a.
b.
2.
3.
4.
The term "withstand" means "the unit will remain in place without separation of any
parts from the device when subjected to the seismic forces specified."
The term "withstand" means "the unit will remain in place without separation of any
parts from the device when subjected to the seismic forces specified and the unit
will be fully operational after the seismic event."
Manufacturer’s dimensioned Outline Drawings of Equipment Unit: Identify center of
gravity and locate and describe mounting and anchorage provisions.
Detailed description of equipment anchorage devices on which the certification is based
and their installation requirements.
OSHPD Special Seismic Certification (OSP) pre-approval on OSHPD projects.
B.
Coordination Drawings: Floor plans, drawn to scale (1/4”=1’-0”), showing dimensioned layout,
required working clearances, and required area above and around Engine Generator set where
pipe and ducts are prohibited. Show Engine Generator layout and relationships between
electrical components and adjacent structural and mechanical elements. Show support
locations, type of support, and weight on each support. Indicate field measurements.
C.
Manufacturer's certified letter stating that unit complies with all California State Codes, Uniform
Building Code (UBC), California Air Resource Board (CARB), California Electrical Code (CEC),
latest edition and supplements and National Electric Manufacturer's Association (NEMA)
standards for an emergency power plant.
D.
Sound levels shall be measured in the octave bands, having center frequencies from 31.5 Hz to
8000 Hz according to the procedures given in American National Standards Institute (ANSI)
Standards Sl.13.71. Measurements shall be made in at least four locations as described in the
standard and shall be made at a distance of one meter from the surface of the equipment.
Sound levels generated shall be within acceptable limits.
E.
Qualification Data: For installer, manufacturer and testing agency.
F.
Source quality-control test reports.
1.
2.
3.
4.
5.
6.
7.
G.
Certified summary of prototype-unit test report.
Certified Test Reports: For components and accessories that are equivalent, but not
identical, to those tested on prototype unit.
Certified Summary of Performance Tests: Certify compliance with specified requirement
to meet performance criteria for sensitive loads.
Certified Test Report of factory tests on units to be shipped for this Project, showing
evidence of compliance with specified requirements. Submit within two (2) weeks of
completion of tests. Report shall be signed by a factory testing engineer.
Report of sound generation.
Report of exhaust emissions showing compliance with applicable regulations.
Certified Torsional Vibration Compatibility: Comply with NFPA 110.
Field quality-control test reports.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-3
H.
1.7
Warranty: Special warranty specified in this Section.
CLOSEOUT SUBMITTALS
A.
Operation and Maintenance Data: For packaged engine generators to include in emergency,
operation, and maintenance manuals. In addition to items specified in Section 017823
"Operation and Maintenance Data," include the following:
1.
1.8
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
(address and phone number of sources).
MAINTENANCE MATERIAL SUBMITTALS
A.
Furnish extra materials described below that match products installed and that are packaged
with protective covering for storage and identified with labels describing contents.
1.
2.
3.
1.9
Fuses: One for every 10 of each type and rating, but no fewer than one of each.
Indicator Lamps: Two for every six of each type used, but no fewer than two of each.
Filters: One set each of lubricating oil, fuel, and combustion-air filters.
QUALITY ASSURANCE
A.
American made products have been acceptable to the Owner. If non-domestic products are
submitted, notice is hereby given that extensive testing shall be required to insure quality and
conformance to the Specifications. Testing shall be done by a recognized lab acceptable to the
Owner and all tests shall be witnessed by Owner’s personnel. Testing procedures and test
results shall be satisfactory to the Owner. Contractor shall be responsible for arranging the
tests, for transportation, food and lodging for minimum of one Owner’s representative to witness
the test at the testing lab. Include all costs for the above in the bid.
B.
Manufacturer Qualifications: A qualified manufacturer. Maintain, within 75 feet of Project site, a
service center capable of providing training, parts, and emergency maintenance repairs.
C.
Contractor shall ensure that the manufacturer has a minimum of 15 years’ experience in the
production of Emergency/Standby Engine Generators similar to the type and size specified in
this project. Furnish a list of three (3) contacts for the three (3) similar projects completed within
the last 5 years. Include name, telephone number and email of the facility engineers.
D.
Manufacturer shall have ISO 9001 or 9002 Certification.
E.
Manufacturer shall have ability to readily provide replacement parts for a minimum period of ten
(10) years, from the date of completion of the project. Furnish a letter from the manufacturer
confirming the availability.
F.
Engine Generators shall be assembled at the manufacturer’s own manufacturing facility using its
own major devices (e.g., circuit breakers) for the assembly. These devices shall be normally
carried by the manufacturer as standard catalog items.
G.
Engine Generators shall comply with seismic zone applicable to the project. Unless otherwise
indicated, verify requirements with Architect or Structural Engineer of Record (SEOR). Provide
certified test reports of shake table test done by manufacturer on similar units.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-4
H.
Materials and equipment shall be new, modern in design and shall not have been in prior service
except as required by factory tests. Major components (e.g. engines, generators, governers,
controls) shall be manufactured within six months of installation.
I.
Source Limitations: Obtain packaged engine generators, and accessories through one source
from a single manufacturer through a local distributor. Manufacturer of overcurrent devices shall
match other power distribution equipment on the project.
J.
Comply with ASME B15.1.
K.
Comply with NFPA 37.
L.
Comply with NFPA 70.
M.
Comply with NFPA 99.
N.
Comply with NFPA 110 requirements for Level 2 emergency power supply system.
O.
Comply with UL 2200.
P.
Engine Exhaust Emissions: Comply with applicable state and local government requirements.
Engine Exhaust Emissions: Apply and obtain a permit to construct and a permit to operate from
Air Pollution Control District (authority having jurisdiction of the project) including payment of
permit fees and health risk assessment fees. Contractor shall submit complete emission data
along with the shop drawings for the generator set within six (6) weeks of receiving Notice to
Proceed. Contractor shall not start installation without proper permits from the authority having
jurisdiction.
Q.
Noise Emission: Comply with applicable state and local government requirements for maximum
noise level at adjacent property boundaries due to sound emitted by generator set including
engine, engine exhaust, engine cooling-air intake and discharge, and other components of
installation.
R.
Product Options: Drawings indicate size, profiles, and dimensional requirements of engine
generators and are based on the specific system indicated. Refer to Part 2 "Product
Requirements."
S.
Electrical Components, Devices, and Accessories: UL Listed and labeled as defined in
NFPA 70, Article 100 and marked for intended location and application.
T.
Testing Agency Qualifications: Member of NETA;
U.
1.
Testing agency shall be an independent company; shall have been a member of NETA
for a minimum of ten (10) years and has permanent in-house testing engineers and
technicians involved with testing of switchboards, panelboards and OCPDs similar to
those specified on this project.
2.
Testing company shall be located with 50 miles radius of the project.
3.
Testing Agency's Field Supervisor: Certified by NETA to supervise on-site testing to
supervise on-site testing specified in Part 3.
Installer Qualifications: Manufacturer's authorized representative who is trained and approved
for installation of units required for this Project.
1.
Maintenance Proximity: Not more than four hours' normal travel time from Installer's
place of business to Project site.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-5
2.
1.10
A.
PROJECT CONDITIONS
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.
2.
B.
Ambient Temperature: 5 to 40 deg C.
Relative Humidity: 0 to 95 percent.
Altitude: Sea level to 1000 feet (300 m).
Unusual Service Conditions: Engine-generator equipment and installation are required to
operate under the following conditions:
1.
1.11
Notify Owner no fewer than fourteen (14) days in advance of proposed interruption of
electrical service.
Do not proceed with interruption of electrical service without Owner's written permission.
Environmental Conditions: Engine-generator system shall withstand the following environmental
conditions without mechanical or electrical damage or degradation of performance capability:
1.
2.
3.
C.
Engineering Responsibility: Preparation of data for vibration isolators and seismic
restraints of engine skid mounts, including Shop Drawings, based on testing and
engineering analysis of manufacturer's standard units in assemblies similar to those
indicated for this Project.
High salt-dust content in the air due to sea-spray evaporation.
COORDINATION
A.
Coordinate size and location of concrete bases for package engine generators. Cast anchorbolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified with
concrete.
B.
Coordinate PM filter requirement with authority having jurisdiction. If generator is located within
1000 feet of a K-12 school, the school shall be notified.
1.12
A.
WARRANTY
Special Warranty: Manufacturer's standard form in which 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.
1.
1.13
A.
Warranty Period: Two years from date of Substantial Completion.
MAINTENANCE SERVICE
Initial Maintenance Service: Beginning at Substantial Completion, provide 24 months' full
maintenance by skilled employees of manufacturer's designated service organization. Include
quarterly exercising to check for proper starting, load transfer, and running under load. Include
routine preventive maintenance as recommended by manufacturer and adjusting as required for
proper operation. Provide parts and supplies same as those used in the manufacture and
installation of original equipment.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-6
PART 2 - PRODUCTS
2.1
MANUFACTURERS
A.
Manufacturers:
following:
1.
2.
3.
2.2
Subject to compliance with requirements, provide products by one of the
Caterpillar; Engine Div.
Onan/Cummins Power Generation; Industrial Business Group
Kohler Co.; Generator Division.
ENGINE-GENERATOR SET
A.
Factory-assembled and -tested, engine-generator set.
B.
Mounting Frame: Maintain alignment of mounted components without depending on concrete
foundation; and have lifting attachments.
1.
C.
Capacities and Characteristics:
1.
2.
3.
D.
Power Output Ratings: Nominal ratings as indicated on Construction Drawings, with
capacity as required to operate as a unit as evidenced by records of prototype testing.
Output Connections: Three-phase, four wire or Single phase three wire. Refer to
drawings for more information.
Nameplates: For each major system component to identify manufacturer's name and
address, and model and serial number of component.
Generator-Set Performance:
1.
2.
3.
4.
5.
6.
7.
8.
E.
Rigging Diagram: Inscribed on metal plate permanently attached to mounting frame to
indicate location and lifting capacity of each lifting attachment and generator-set center of
gravity.
Steady-State Voltage Operational Bandwidth: 3 percent of rated output voltage from no
load to full load.
Transient Voltage Performance: Not more than 20 percent variation for 50 percent stepload increase or decrease. Voltage shall recover and remain within the steady-state
operating band within three seconds.
Steady-State Frequency Operational Bandwidth: 0.5 percent of rated frequency from no
load to full load.
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 or surging of speed.
Transient Frequency Performance: Less than 5 percent variation for 50 percent step-load
increase or decrease. Frequency shall recover and remain within the steady-state
operating band within five seconds.
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.
Sustained Short-Circuit Current: For a 3-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
system components.
Start Time: Comply with NFPA 110, Type 10, system requirements.
Generator-Set Performance for Sensitive Loads:
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-7
1.
Oversizing generator compared with the rated power output of the engine is permissible
to meet specified performance.
a.
2.
3.
4.
5.
6.
7.
8.
9.
Steady-State Voltage Operational Bandwidth: 1 percent of rated output voltage from no
load to full load.
Transient Voltage Performance: Not more than 10 percent variation for 50 percent stepload increase or decrease. Voltage shall recover and remain within the steady-state
operating band within 0.5 second.
Steady-State Frequency Operational Bandwidth: Plus or minus 0.25 percent of rated
frequency from no load to full load.
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 or surging of speed.
Transient Frequency Performance: Less than 2-Hz variation for 50 percent step-load
increase or decrease. Frequency shall recover and remain within the steady-state
operating band within three seconds.
Output Waveform: At no load, harmonic content measured line to neutral shall not
exceed 2 percent total with no slot ripple. Telephone influence factor, determined
according to NEMA MG 1, shall not exceed 50 percent.
Sustained Short-Circuit Current: For a 3-phase, bolted short circuit at system output
terminals, system shall supply a minimum of 300 percent of rated full-load current for not
less than 10 seconds and then clear the fault automatically, without damage to winding
insulation or other generator system components.
Excitation System: Performance shall be unaffected by voltage distortion caused by
nonlinear load.
a.
10.
2.3
Nameplate Data for Oversized Generator: Show ratings required by the Contract
Documents rather than ratings that would normally be applied to generator size
installed.
Provide permanent magnet excitation for power source to voltage regulator.
Start Time: Comply with NFPA 110, Type 10, system requirements.
ENGINE
A.
Fuel: Fuel oil, Grade DF-2.
1.
Meet standards ASTM D975, ASTM D396 and ASTM D2880.
B.
Rated Engine Speed: 1800 rpm.
C.
Maximum Piston Speed for Four-Cycle Engines: 2250 fpm (11.4 m/s).
D.
Lubrication System: The following items are mounted on engine or skid:
1.
2.
3.
E.
Filter and Strainer: Rated to remove 90 percent of particles 5 micrometers and smaller
while passing full flow.
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.
Crankcase Drain: Arranged for complete gravity drainage to an easily removable
container with no disassembly and without use of pumps, siphons, special tools, or
appliances.
Engine Fuel System:
1.
Main Fuel Pump: Mounted on engine. Pump ensures adequate primary fuel flow under
starting and load conditions.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-8
2.
3.
Relief-Bypass Valve: Automatically regulates pressure in fuel line and returns excess fuel
to source.
Dual Natural Gas with LP-Gas Backup (Vapor-Withdrawal) System:
a.
b.
c.
d.
Carburetor.
Secondary Gas Regulators: One for each fuel type.
Fuel-Shutoff Solenoid Valves: One for each fuel source.
Flexible Fuel Connectors: One for each fuel source.
F.
Coolant Jacket Heater: Electric-immersion type, factory installed in coolant jacket system.
Comply with NFPA 110 requirements for Level 1 equipment for heater capacity.
G.
Governor: Adjustable isochronous, with speed sensing.
H.
Cooling System: Closed loop, liquid cooled, with radiator factory mounted on engine-generatorset mounting frame and integral engine-driven coolant pump.
1.
2.
3.
4.
5.
Coolant: Solution of 50 percent ethylene-glycol-based antifreeze and 50 percent water,
with anticorrosion additives as recommended by engine manufacturer.
Size of Radiator: Adequate to contain expansion of total system coolant from cold start to
110 percent load condition.
Expansion Tank: Constructed of welded steel plate and rated to withstand maximum
closed-loop coolant system pressure for engine used. Equip with gage glass and
petcock.
Temperature Control: Self-contained, thermostatic-control valve modulates coolant flow
automatically to maintain optimum constant coolant temperature as recommended by
engine manufacturer.
Coolant Hose: Flexible assembly with inside surface of nonporous rubber and outer
covering of aging-, ultraviolet-, and abrasion-resistant fabric.
a.
b.
I.
Rating: 50-psig (345-kPa) maximum working pressure with coolant at 180 deg F
(82 deg C), and noncollapsible under vacuum.
End Fittings: Flanges or steel pipe nipples with clamps to suit piping and
equipment connections.
Muffler/Silencer: Critical type, super quiet, sized as recommended by engine manufacturer and
selected with exhaust piping system to not exceed engine manufacturer's engine backpressure
requirements. Provide stainless steel type muffler including pipe connection to engine where
these are exposed to weather.
1.
2.
Minimum sound attenuation of 25 dB at 500 Hz.
Sound level measured at a distance of 10 feet (3 m) from exhaust discharge after
installation is complete shall be 85 dBA or less.
J.
Air-Intake Filter: Standard duty, engine-mounted air cleaner with replaceable dry-filter element
and "blocked filter" indicator. Provide new filters after completion for field tests and before
acceptance by the owner.
K.
Starting System: 12V electric, with negative ground.
1.
2.
3.
4.
Components: Sized so they will not be damaged during a full engine-cranking cycle with
ambient temperature at maximum specified in Part 1 "Project Conditions" Article.
Cranking Motor: Heavy-duty unit that automatically engages and releases from engine
flywheel without binding.
Cranking Cycle: As required by NFPA 110 for system level specified.
Battery: Adequate capacity within ambient temperature range specified in Part 1 "Project
Conditions" Article to provide specified cranking cycle at least three times without
recharging.
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ENGINE GENERATORS
263213-9
5.
6.
7.
8.
Battery Cable: Size as recommended by engine manufacturer for cable length indicated.
Include required interconnecting conductors and connection accessories.
Battery Compartment: Factory fabricated of metal with acid-resistant finish and thermal
insulation. Thermostatically controlled heater shall be arranged to maintain battery above
10 deg C regardless of external ambient temperature within range specified in Part 1
"Project Conditions" Article. Include accessories required to support and fasten batteries
in place.
Battery-Charging Alternator:
Factory mounted on engine with solid-state voltage
regulation and 35-A minimum continuous rating.
Battery Charger: Current-limiting, automatic-equalizing and float-charging type. Unit shall
comply with UL 1236 and include the following features:
a.
b.
c.
d.
e.
f.
2.4
Operation: Equalizing-charging rate of 10 A shall be initiated automatically after
battery has lost charge until an adjustable equalizing voltage is achieved at battery
terminals. Unit shall then be automatically switched to a lower float-charging mode
and shall continue to operate in that mode until battery is discharged again.
Automatic Temperature Compensation: Adjust float and equalize voltages for
variations in ambient temperature from minus 40 deg C to plus 60 deg C to prevent
overcharging at high temperatures and undercharging at low temperatures.
Automatic Voltage Regulation: Maintain constant output voltage regardless of input
voltage variations up to plus or minus 10 percent.
Ammeter and Voltmeter: Flush mounted in door. Meters shall indicate charging
rates.
Safety Functions: Sense abnormally low battery voltage and close contacts
providing low battery voltage indication on control and monitoring panel. Sense
high battery voltage and loss of ac input or dc output of battery charger. Either
condition shall close contacts that provide a battery-charger malfunction indication
at system control and monitoring panel.
Enclosure and Mounting: NEMA 250, Type 1, wall-mounted cabinet.
FUEL OIL STORAGE
A.
Comply with NFPA 30. Fuel system shall be complete and shall consist of a dual filtering
system, fuel storage tank, day tank and engine fuel pump. Provide fuel for testing and full tank
after testing.
B.
Base-Mounted Fuel Oil Tank: Factory installed and piped, complying with UL 142 fuel oil tank.
Features include the following:
1.
2.
3.
4.
5.
6.
2.5
Tank level indicator.
Leak detection switch.
Capacity: Fuel for 72 hours' continuous operation at 100 percent rated power output, 402
gal.
Vandal-resistant fill cap.
Containment Provisions: Comply with requirements of authorities having jurisdiction.
Dual wall, secondary containment.
CONTROL AND MONITORING
A.
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 generator set. When
mode-selector switch is switched to the on position, generator set starts. The off position of
same switch initiates generator-set shutdown. When generator set is running, specified system
or equipment failures or derangements automatically shut down generator set and initiate
alarms. Operation of a remote emergency-stop switch also shuts down generator set.
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263213-10
B.
Manual Starting System Sequence of Operation: Switching on-off switch on the generator
control panel to the on position starts generator set. The off position of same switch initiates
generator-set shutdown. When generator set is running, specified system or equipment failures
or derangements automatically shut down generator set and initiate alarms. Operation of a
remote emergency-stop switch also shuts down generator set.
C.
Configuration: Operating and safety indications, protective devices, basic system controls, and
engine gages shall be grouped in a common control and monitoring panel mounted on the
generator set. Mounting method shall isolate the control panel from generator-set vibration.
D.
Configuration: Operating and safety indications, protective devices, basic system controls, and
engine gages shall be grouped in a common wall-mounted control and monitoring panel.
E.
Configuration: Operating and safety indications, protective devices, basic system controls,
engine gages, instrument transformers, generator disconnect switch or circuit breaker, and other
indicated components shall be grouped in a combination control and power panel. Control and
monitoring section of panel shall be isolated from power sections by steel barriers. Panel
features shall include the following:
1.
2.
3.
4.
F.
Indicating and Protective Devices and Controls: As required by NFPA 110 for Level 2 system,
and the following:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
G.
Wall-Mounting Cabinet Construction: Rigid, self-supporting steel unit complying with
NEMA ICS 6. Power bus shall be copper. Bus, bus supports, control wiring, and
temperature rise shall comply with UL 891.
Switchboard Construction:
Freestanding unit complying with Section 262413
"Switchboards."
Switchgear Construction: Freestanding unit complying with Section 262300 "Low-Voltage
Switchgear."
Current and Potential Transformers: Instrument accuracy class.
AC voltmeter.
AC ammeter.
AC frequency meter.
DC voltmeter (alternator battery charging).
Engine-coolant temperature gage.
Engine lubricating-oil pressure gage.
Running-time meter.
Ammeter-voltmeter, phase-selector switch(es).
Generator-voltage adjusting rheostat.
Fuel tank derangement alarm.
Fuel tank high-level shutdown of fuel supply alarm.
Generator overload.
Indicating and Protective Devices and Controls:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
AC voltmeter.
AC ammeter.
AC frequency meter.
DC voltmeter (alternator battery charging).
Engine-coolant temperature gage.
Engine lubricating-oil pressure gage.
Running-time meter.
Ammeter-voltmeter, phase-selector switch(es).
Generator-voltage adjusting rheostat.
Start-stop switch.
Overspeed shutdown device.
Coolant high-temperature shutdown device.
Coolant low-level shutdown device.
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263213-11
14.
15.
16.
17.
Oil low-pressure shutdown device.
Fuel tank derangement alarm.
Fuel tank high-level shutdown of fuel supply alarm.
Generator overload.
H.
Supporting Items: Include sensors, transducers, terminals, relays, and other devices and
include wiring required to support specified items. Locate sensors and other supporting items
on engine or generator, unless otherwise indicated.
I.
Connection to Data Link: A separate terminal block, factory wired to Form C dry contacts, for
each alarm and status indication is reserved for connections for data-link transmission of
indications to remote data terminals. Data system connections to terminals are covered in
Section 260913 "Electrical Power Monitoring and Control."
J.
Common Remote Audible Alarm: Comply with NFPA 110 requirements for Level 1 systems.
Include necessary contacts and terminals in control and monitoring panel.
1.
2.
3.
4.
5.
K.
Overcrank shutdown.
Coolant low-temperature alarm.
Control switch not in auto position.
Battery-charger malfunction alarm.
Battery low-voltage alarm.
Common Remote Audible Alarm: Signal the occurrence of any events listed below without
differentiating between event types. Connect so that after an alarm is silenced, clearing of
initiating condition will reactivate alarm until silencing switch is reset.
1.
2.
3.
4.
5.
6.
7.
8.
Engine high-temperature shutdown.
Lube-oil, low-pressure shutdown.
Overspeed shutdown.
Remote emergency-stop shutdown.
Engine high-temperature prealarm.
Lube-oil, low-pressure prealarm.
Fuel tank, low-fuel level.
Low coolant level.
L.
Remote Alarm Annunciator: Comply with NFPA 99. An LED labeled with proper alarm
conditions shall identify each alarm event and a common audible signal shall sound for each
alarm condition. Silencing switch in face of panel shall silence signal without altering visual
indication. Connect so that after an alarm is silenced, clearing of initiating condition will
reactivate alarm until silencing switch is reset. Cabinet and faceplate are surface- or flushmounting type to suit mounting conditions indicated.
M.
Remote Emergency-Stop Switch:
Red mush-room head type with an engraved label
“EMERGENNCY STOP SWITCH”. Flush; wall mounted, unless otherwise indicated; and
labeled. Push button shall be protected from accidental operation with a transparent see-thru
lexan cover.
2.6
GENERATOR OVERCURRENT AND FAULT PROTECTION
A.
Generator Circuit Breaker 400A Frame and above:
percent rated; complying with UL 489.
1.
2.
3.
Molded-case, electronic-trip type; 100
Tripping Characteristics:
Field adjustable long-time and short-time delay and
instantaneous. Trip unit shall be field replaceable.
Trip Settings: Selected to coordinate with generator thermal damage curve.
Shunt Trip: Connected to trip breaker when generator set is shut down by other
protective devices.
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263213-12
4.
5.
B.
Generator Circuit Breaker 400A Frame and above: Insulated-case, electronic-trip type; 100
percent rated; complying with UL 489.
1.
2.
3.
4.
5.
C.
3.
2.
3.
4.
2.7
Rating: Matched to generator output rating.
Shunt Trip: Connected to trip switch when signaled by generator protector or by other
protective devices.
Enclosure: Provide NEMA 4X stainless steel enclosure for breakers mounted exposed to
weather.
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
generator-set protective devices, a shunt-trip device in the generator disconnect switch shall
open the switch to disconnect the generator from load circuits. Protector shall perform the
following functions:
1.
E.
Tripping Characteristics:
Field adjustable long-time and short-time delay and
instantaneous. Trip unit shall be field replaceable.
Trip Settings: Selected to coordinate with generator thermal damage curve.
Shunt Trip: Connected to trip breaker when generator set is shut down by other
protective devices.
Mounting: Adjacent to or integrated with control and monitoring panel.
Enclosure: Provide NEMA 4X stainless steel enclosure for breakers mounted exposed to
weather.
Generator Disconnect Switch: Molded-case type, 100 percent rated.
1.
2.
D.
Mounting: Adjacent to or integrated with control and monitoring panel.
Enclosure: Provide NEMA 4X stainless steel enclosure for breakers mounted exposed to
weather.
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 generator-set malfunction alarms.
Under single or three-phase fault conditions, regulates generator to 300 percent of rated
full-load current for up to 10 seconds.
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 generator set.
Senses clearing of a fault by other overcurrent devices and controls recovery of rated
voltage to avoid overshoot.
Ground-Fault Indication: Comply with NFPA 70, "Emergency System" signals for ground-fault.
Integrate ground-fault alarm indication with other generator-set alarm indications. Alarm shall be
remotely monitored by BMS.
GENERATOR, EXCITER, AND VOLTAGE REGULATOR
A.
Comply with NEMA MG 1.
B.
Drive: Generator shaft shall be directly connected to engine shaft. Exciter shall be rotated
integrally with generator rotor.
C.
Electrical Insulation: Class H or Class F.
D.
Stator-Winding Leads:
voltages if required.
Brought out to terminal box to permit future reconnection for other
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263213-13
E.
Construction shall prevent mechanical, electrical, and thermal damage due to vibration,
overspeed up to 125 percent of rating, and heat during operation at 110 percent of rated
capacity.
F.
Enclosure: Drip proof.
G.
Instrument Transformers: Mounted within generator enclosure.
H.
Voltage Regulator: Solid-state type, separate from exciter, providing performance as specified.
1.
Adjusting rheostat on control and monitoring panel shall provide plus or minus 5 percent
adjustment of output-voltage operating band.
I.
Strip Heater: Thermostatically controlled unit arranged to maintain stator windings above dew
point.
J.
Windings: Two-thirds pitch stator winding and fully linked amortisseur winding.
K.
Subtransient Reactance: 12 percent, maximum.
2.8
LOAD BANK
A.
Description: Permanent, outdoor, weatherproof, remote-controlled, forced-air-cooled, resistive
and reactive unit capable of providing a balanced 3-phase, delta-connected load to generator
set at 100 percent rated-system capacity, at 80 percent power factor, lagging. Unit may be
composed of separate resistive and reactive load banks controlled by a common control panel.
Unit shall be capable of selective control of load in 25 percent steps and with minimum step
changes of approximately 5 and 10 percent available.
B.
Resistive Load Elements: Corrosion-resistant chromium alloy with ceramic and steel supports.
Elements shall be double insulated and designed for repetitive on-off cycling. Elements shall be
mounted in removable aluminized-steel heater cases.
C.
Reactive Load Elements: Epoxy-encapsulated reactor coils.
D.
Load-Bank Heat Dissipation: Integral fan with totally enclosed motor shall provide uniform
cooling airflow through load elements. Airflow and coil operating current shall be such that, at
maximum load, with ambient temperature at the upper end of specified range, load-bank
elements operate at not more than 50 percent of maximum continuous temperature rating of
resistance elements.
E.
Load Element Switching: Remote-controlled contactors switch groups of load elements.
Contactor coils are rated 120 V. Contactors shall be located in a separate NEMA 250, Type 3R
enclosure within load-bank enclosure, accessible from exterior through hinged doors with
tumbler locks.
F.
Contactor Enclosures:
condensation.
G.
Load-Bank Enclosures: NEMA 250, Type 3R, complying with NEMA ICS 6. Finish shall match
with finish of the Generator enclosure. Louvers at cooling-air intake and discharge openings
shall prevent entry of rain and snow. Openings for airflow shall be screened with 1/2-inch- (13mm-) square, galvanized-steel mesh. Reactive load bank shall include automatic shutters at air
intake and discharge.
H.
Protective Devices: Power input circuits to load banks shall be fused, and fuses shall be
selected to coordinate with generator circuit breaker. Fuse blocks shall be located in contactor
Heated by thermostatically controlled strip heaters to prevent
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ENGINE GENERATORS
263213-14
enclosure. Cooling airflow and overtemperature sensors shall automatically shut down and lock
out load bank until manually reset. Safety interlocks on access panels and doors shall
disconnect load power, control, and heater circuits. Fan motor shall be separately protected by
overload and short-circuit devices. Short-circuit devices shall be noninterchangeable fuses with
200,000-A interrupting capacity.
I.
Remote-Control Panel: Separate from load bank in NEMA 250, Type 1 enclosure with a control
power switch and pilot light, and switches controlling groups of load elements.
J.
Control Sequence: Control panel may be preset for adjustable single-step loading of generator
during automatic exercising.
2.9
OUTDOOR GENERATOR-SET ENCLOSURE
A.
Description: Vandal-resistant, weatherproof steel housing, wind resistant up to 100 mph (160
km/h). Roof shall be pitched for drainage and overlapping on all sides. Exhaust pipe opening
shall be fitted watertight sealing material. Provide a drip shield around the exhaust pipe
opening. Multiple panels shall be lockable and provide adequate access to components
requiring maintenance. Panels shall be removable by one person without tools. Instruments
and control shall be mounted within enclosure and accessible by opening the hinged panel
doors. Panel doors shall swing out 180 degrees.
B.
Description: Prefabricated or pre-engineered walk-in enclosure of sufficient size to allow code
required clearances on all sides and maintenance. Provide with the following features:
1.
2.
3.
4.
5.
6.
7.
8.
9.
C.
Engine Cooling Airflow through Enclosure: Maintain temperature rise of system components
within required limits when unit operates at 110 percent of rated load for 2 hours with ambient
temperature at top of range specified in system service conditions.
1.
2.
D.
Construction: Galvanized-steel, or metal-clad, integral structural-steel-framed building
erected on concrete foundation. .
Structural Design and Anchorage: Comply with ASCE 7 for wind loads.
Enclosure shall have sound attenuation to reduce the noise to 74dB at 23 feet.
Space Heater: Thermostatically controlled and sized to prevent condensation.
Louvers: Equipped with bird screen and filter arranged to permit air circulation when
engine is not running while excluding exterior dust, birds, and rodents.
Hinged Doors: With padlocking provisions.
Ventilation: Louvers equipped with bird screen and filter arranged to permit air circulation
while excluding exterior dust, birds, and rodents.
Thermal Insulation: Manufacturer's standard materials and thickness selected in
coordination with space heater to maintain winter interior temperature within operating
limits required by engine-generator-set components.
Muffler Location: Within enclosure. Verify with owner if enclosure walls need to be
extended up to hide the external muffler so that it is not visible from grade.
Louvers: Fixed-engine, cooling-air inlet and discharge. Storm-proof and drainable
louvers prevent entry of rain and snow.
Automatic Dampers: At engine cooling-air inlet and discharge. Dampers shall be closed
to reduce enclosure heat loss in cold weather when unit is not operating.
Interior Lights with Switch: Factory-wired, vaporproof-type fluorescent fixtures within housing;
arranged to illuminate controls and accessible interior. Arrange for external electrical
connection.
1.
2.
AC lighting system and connection point for operation when remote source is available.
DC lighting system for operation when remote source and generator are both unavailable.
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ENGINE GENERATORS
263213-15
E.
2.10
A.
Convenience Outlets: Specification grade, factory wired GFCI. Arrange for external electrical
connection.
MOTORS
General requirements:
1.
2.
2.11
A.
VIBRATION ISOLATION DEVICES
Elastomeric Isolator Pads: Oil- and water-resistant elastomer or natural 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.
1.
2.
3.
B.
2.
3.
4.
5.
A.
2.13
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- (6-mm-) thick,
elastomeric isolator pad attached to baseplate underside; and adjustable equipment
mounting and leveling bolt that acts as blocking during installation.
Outside Spring Diameter: Not less than 80 percent of compressed height of the spring at
rated load.
Minimum Additional Travel: 50 percent of required deflection at rated load.
Lateral Stiffness: More than 80 percent of rated vertical stiffness.
Overload Capacity: Support 200 percent of rated load, fully compressed, without
deformation or failure.
FINISHES
Indoor and Outdoor Enclosures and Components: Manufacturer's standard finish over
corrosion-resistant pretreatment and compatible primer. Verify with owner if a custom finish is
required.
SOURCE QUALITY CONTROL
Prototype Testing: Factory test engine-generator set using same engine model, constructed of
identical or equivalent components and equipped with identical or equivalent accessories.
1.
B.
Material: Natural rubber.
Durometer Rating: per manufacturer.
Number of Layers: per manufacturer.
Restrained Spring Isolators: Freestanding, steel, open-spring isolators with seismic restraint.
1.
2.12
Motor Sizes: Minimum size as indicated. If not indicated, large enough so driven load will
not require motor to operate in service factor range above 1.0.
Controllers, Electrical Devices, and Wiring: Electrical devices and connections are
specified in electrical Sections.
Tests: Comply with NFPA 110, Level 1 Energy Converters and with IEEE 115.
Project-Specific Equipment Tests: Before shipment, factory test engine-generator set and other
system components and accessories manufactured specifically for this Project. Perform tests at
rated load and power factor. Include the following tests:
1.
One hour at 25 percent load.
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263213-16
2.
3.
4.
C.
One hour at 50 percent load.
Two hours at 75 percent load.
Two hours at 100 percent load.
Test data shall be recorded and included in the maintenance manual. The following test data
shall be recorded during factory and field tests:
1.
Voltage:
a.
b.
2.
Current:
a.
b.
3.
11.
12.
13.
14.
15.
D.
Strip chart for 15 minutes at 75 percent load.
Strip chart for 15 minutes at 100 percent load.
Frequency:
a.
b.
4.
5.
6.
7.
8.
9.
10.
Strip chart for 15 minutes at 75 percent load.
Strip chart for 15 minutes at 100 percent load.
Strip chart for 15 minutes at 75 percent load.
Strip chart for 15 minutes at 100 percent load.
Oil Pressure: Record in 15-minute intervals during test.
Water Temperature: Record in 15-minute intervals during test.
Water Pressure: Record in 15-minute intervals during test.
Oil Temperature: Record in 15 minute intervals during test.
KW Output: Record in 15-minute intervals during test.
Test shall include testing with cold start including jacket heaters.
Test components and accessories furnished with installed unit that are not identical to
those on tested prototype to demonstrate compatibility and reliability.
Voltage regulation.
Transient and steady-state governing.
Single-step load pickup.
Safety shutdown.
Observation of Factory Tests: Provide 14 days' advance notice of tests and opportunity
for observation of tests by University's representative.
Report factory test results within 10 days of completion of test.
1.
Report shall be reviewed, signed by the factory testing engineer. Include name of the
engineer, date and location of testing.
PART 3 - EXECUTION
3.1
EXAMINATION
A.
Examine areas, equipment bases, and conditions, with Installer present, for compliance with
requirements for installation and other conditions affecting packaged engine-generator
performance.
B.
Examine roughing-in of piping systems and electrical connections. Verify actual locations of
connections before packaged engine-generator installation.
C.
Proceed with installation only after unsatisfactory conditions have been corrected.
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3.2
INSTALLATION
A.
Comply with packaged engine-generator manufacturers' written installation and alignment
instructions and with NFPA 110.
B.
Install packaged engine generator to provide access, without removing connections or
accessories, for periodic maintenance.
C.
Install packaged engine generator with [elastomeric isolator pads] [restrained spring
isolators] having a minimum deflection of [1 inch (25 mm)] <Insert static deflection> on 4inch- (100-mm-) high concrete base. Secure sets to anchor bolts installed in concrete bases.
Concrete base construction is specified in Section 260548 "Vibration and Seismic Controls for
Electrical Systems."
D.
Install remote radiator with [elastomeric isolator pads] [restrained spring isolators] having a
minimum deflection of [1 inch (25 mm)] <Insert static deflection> on [concrete base on
grade] [roof equipment supports on roof].
E.
Install Schedule 40, black steel piping with welded joints for cooling water piping between
engine-generator set and [heat exchanger] [remote radiator]. Piping materials and installation
requirements are specified in Section 232113 "Hydronic Piping."
F.
Install Schedule 40, black steel piping with welded joints and connect to engine muffler. Install
thimble at wall. Piping shall be same diameter as muffler outlet. Flexible connectors and steel
piping materials and installation requirements are specified in Section 232113 "Hydronic Piping."
1.
G.
3.3
Install condensate drain piping to muffler drain outlet full size of drain connection with a
shutoff valve, stainless-steel flexible connector, and Schedule 40, black steel pipe with
welded joints. Flexible connectors and piping materials and installation requirements are
specified in Section 232113 "Hydronic Piping."
Electrical Wiring: Install electrical devices furnished by equipment manufacturers but not
specified to be factory mounted.
CONNECTIONS
A.
Piping installation requirements are specified in other Sections.
arrangement of piping and specialties.
B.
Connect fuel, cooling-system, and exhaust-system piping adjacent to packaged engine
generator to allow service and maintenance.
C.
Connect cooling-system water piping to engine-generator set and heat exchanger with flexible
connectors.
D.
Connect engine exhaust pipe to engine with flexible connector.
E.
Install exhaust-system piping. Extend to point of termination outside structure. Size piping
according to manufacturer's written instructions.
1.
F.
Drawings indicate general
Install condensate drain piping for engine exhaust system. Extend drain piping from low
points of exhaust system and from muffler to condensate traps and to point of disposition.
Connect fuel piping to engines with a gate valve and union and flexible connector.
1.
Diesel storage tanks, tank accessories, piping, valves, and specialties for fuel systems
are specified in Section 231113 "Facility Fuel-Oil Piping."
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263213-18
2.
3.
Natural-gas piping, valves, and specialties for gas distribution are specified in
Section 231123 "Facility Natural-Gas Piping."
LP-gas piping, valves, and specialties for gas piping are specified in Section 231126
"Facility Liquefied-Petroleum Gas Piping."
G.
Ground equipment according to Section 260526 "Grounding and Bonding for Electrical
Systems."
H.
Connect wiring according to Section 260519 "Low-Voltage Electrical Power Conductors and
Cables."
3.4
IDENTIFICATION
A.
3.5
Identify system components according to Section 230553 "Identification for HVAC Piping and
Equipment" and Section 260553 "Identification for Electrical Systems."
FIELD QUALITY CONTROL
A.
Testing Agency: Engage a qualified testing agency to perform tests and inspections and
prepare test reports.
B.
Manufacturer's Field Service: Engage a factory-authorized service representative to inspect,
test, and adjust components, assemblies, and equipment installations, including connections.
Report results in writing.
C.
Perform tests and inspections and prepare test reports.
1.
D.
Manufacturer's Field Service: Engage a factory-authorized service representative to
inspect components, assemblies, and equipment installations, including connections, and
to assist in testing.
Tests and Inspections:
1.
2.
3.
Perform tests recommended by manufacturer and each electrical test and visual and
mechanical inspection for "AC Generators and for Emergency Systems" specified in
NETA Acceptance Testing Specification. Certify compliance with test parameters.
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.
Battery Tests: Equalize charging of battery cells according to manufacturer's written
instructions. Record individual cell voltages.
a.
b.
c.
d.
4.
5.
6.
Measure charging voltage and voltages between available battery terminals for fullcharging and float-charging conditions. Check electrolyte level and specific gravity
under both conditions.
Test for contact integrity of all connectors. Perform an integrity load test and a
capacity load test for the battery.
Verify acceptance of charge for each element of the battery after discharge.
Verify that measurements are within manufacturer's specifications.
Battery-Charger Tests: Verify specified rates of charge for both equalizing and floatcharging conditions.
System Integrity Tests: Methodically verify proper installation, connection, and integrity of
each element of engine-generator system before and during system operation. Check for
air, exhaust, and fluid leaks.
Exhaust-System Back-Pressure Test: Use a manometer with a scale exceeding 40-inch
wg (120 kPa). Connect to exhaust line close to engine exhaust manifold. Verify that back
pressure at full-rated load is within manufacturer's written allowable limits for the engine.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-19
7.
8.
9.
10.
Exhaust Emissions Test: Comply with applicable government test criteria.
Voltage and Frequency Transient Stability Tests: Use recording oscilloscope to measure
voltage and frequency transients for 50 and 100 percent step-load increases and
decreases, and verify that performance is as specified.
Harmonic-Content Tests: Measure harmonic content of output voltage under 25 percent
and at 100 percent of rated linear load. Verify that harmonic content is within specified
limits.
Noise Level Tests: Measure A-weighted level of noise emanating from generator-set
installation, including engine exhaust and cooling-air intake and discharge, at four
locations on the property line, and compare measured levels with required values.
E.
Coordinate tests with tests for transfer switches and run them concurrently.
F.
Test instruments shall have been calibrated within the last 12 months, traceable to standards of
NIST, and adequate for making positive observation of test results. Make calibration records
available for examination on request.
G.
Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no
leaks exist.
H.
Operational Test: After electrical circuitry has been energized, start units to confirm proper
motor rotation and unit operation.
I.
Test and adjust controls and safeties.
equipment.
J.
Remove and replace malfunctioning units and retest as specified above.
K.
Retest: Correct deficiencies identified by tests and observations and retest until specified
requirements are met.
L.
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.
M.
Infrared Scanning: After Substantial Completion, but not more than 60 days after Final
Acceptance, perform an infrared scan of each power wiring termination and each bus
connection. Remove all access panels so terminations and connections are accessible to
portable scanner.
1.
2.
3.
3.6
Replace damaged and malfunctioning controls and
Follow-up Infrared Scanning: Perform an additional follow-up infrared scan 11 months
after date of Substantial Completion.
Instrument: Use an infrared scanning device designed to measure temperature or to
detect significant deviations from normal values. Provide calibration record for device.
Record of Infrared Scanning: Prepare a certified report that identifies terminations and
connections checked and that describes scanning results.
Include notation of
deficiencies detected, remedial action taken, and observations after remedial action.
DEMONSTRATION
A.
Engage a factory-authorized service representative to train College's maintenance personnel to
adjust, operate, and maintain packaged engine generators. Training shall be held on site after
the generator set is complete and fully functional.
END OF SECTION 263213
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
ENGINE GENERATORS
263213-20
SECTION 263600
TRANSFER SWITCHES
PART 1 - GENERAL
1.1
A.
1.2
A.
RELATED DOCUMENTS
Drawings and general provisions of the Contract, including General and
Supplementary Conditions and Division 01 Specification Sections, apply to this
Section.
SUMMARY
This Section includes transfer switches rated 600 V and less, including the following:
1.
1.3
Automatic transfer switches.
DEFINITIONS
A.
ATS: Automatic Transfer Switch
B.
EMI: Electromagnetic interference.
C.
LCD: Liquid-crystal display.
D.
LED: Light-emitting diode.
E.
NETA:
F.
PC: Personal computer.
G.
THD: Total harmonic distortion.
1.4
A.
InterNational Electrical Testing Association.
PERFORMANCE REQUIREMENTS
Seismic Performance: Shall withstand the effects of earthquake motions determined
according to ASCE/SEI 7.
1.
The term "withstand" means "the unit will remain in place without separation of
any parts from the device when subjected to the seismic forces specified and the
unit will be fully operational after the seismic event."
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-1
1.5
ACTION SUBMITTALS
A.
Product Data: For each type of product indicated. Include rated capacities, weights,
operating characteristics, furnished specialties, and accessories.
B.
Shop Drawings: Dimensioned plans, elevations, sections, and details showing
minimum clearances on all sides, conductor entry provisions, gutter space, installed
features and devices, and material lists for each switch specified. Drawings shall be
drawn to scale (1/4”=1’-0”).
1.
1.6
Single-Line Diagram:
Show connections between transfer switch,
bypass/isolation switch, power sources, and load; and show interlocking
provisions for each combined transfer switch and bypass/isolation switch.
INFORMATIONAL SUBMITTALS
A.
Qualification Data: For manufacturer.
B.
Manufacturer Seismic Qualification Certification: Submit certification that transfer
switches accessories, and components will withstand seismic forces defined in
Section 260548 "Vibration and Seismic Controls for Electrical Systems." Include the
following:
1.
Basis for Certification: Indicate whether withstand certification is based on actual
test of assembled components or on calculation.
a.
2.
3.
C.
The term "withstand" means "the unit will remain in place without
separation of any parts from the device when subjected to the seismic
forces specified and the unit will be fully operational after the seismic
event."
Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and
locate and describe mounting and anchorage provisions.
Detailed description of equipment anchorage devices on which the certification is
based and their installation requirements.
Field quality-control test reports.
1.
2.
3.
Test procedures used.
Test results that comply with requirements.
Results of failed tests and corrective action taken to achieve test results that
comply with requirements.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-2
1.7
A.
CLOSEOUT SUBMITTALS
Operation and Maintenance Data: For each type of product to include in emergency,
operation, and maintenance manuals. In addition to items specified in Section 017823
"Operation and Maintenance Data," include the following:
1.
2.
1.8
Features and operating sequences, both automatic and manual.
List of all factory settings of relays; provide relay-setting and calibration
instructions, including software, where applicable.
QUALITY ASSURANCE
A.
American made products have been acceptable to the Owner. If non-domestic
products are submitted, notice is hereby given that extensive testing shall be required
to insure quality and conformance to the Specifications. Testing shall be done by a
recognized lab acceptable to the Owner and all tests shall be witnessed by Owner’s
personnel. Testing procedures and test results shall be satisfactory to the Owner.
Contractor shall be responsible for arranging the tests, for transportation, food and
lodging for minimum of one Owner’s representative to witness the test at the testing
lab. Include all costs for the above in the bid.
B.
Manufacturer Qualifications: A qualified manufacturer. Maintain, within 75 miles (120
kms) of Project site, a service center capable of providing training, parts, and
emergency maintenance repairs within 8 hours from the time of notification.
C.
Contractor shall ensure that the manufacturer has a minimum of 15 years experience
in the production of Emergency/Standby Engine Generators similar to the type and size
specified in this project. Furnish a list of three (3) contacts for the three (3) similar
projects completed within the last 5 years. Include name, tele no and email of the
facility engineers.
D.
Manufacturer shall have ISO 9001 or 9002 Certification.
E.
Manufacturer shall have ability to readily provide replacement parts for a minimum
period of ten (10) years, from the date of completion of the project. Furnish a letter from
the manufacturer confirming the availability.
F.
Transfer Switch shall be assembled at the manufacturer’s own manufacturing facility
using its own major devices (e.g., contactors) for the assembly. These devices shall
be normally carried by the manufacturer as standard catalog items.
G.
Materials and equipment shall be new, modern in design and shall not have been in
prior service except as required by factory tests. Major components (e.g. contactors,
controls) shall be manufactured within six months of installation.
H.
Source Limitations: Obtain automatic transfer switches and remote annunciators
through one source from a single manufacturer switch, and accessories through one
source from a single manufacturer through a local distributor.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-3
I.
Product Options: Drawings indicate size, profiles, and dimensional requirements of
engine generators and are based on the specific system indicated.
J.
Electrical Components, Devices, and Accessories: UL Listed and labeled as defined in
NFPA 70, Article 100 and marked for intended location and application.
K.
Testing Agency Qualifications: Member of NETA;
1.
Testing agency shall be an independent company; shall have been a member of
NETA for a minimum of ten (10) years and has permanent in-house testing
engineers and technicians involved with testing of transfer switches,
switchboards, panelboards and OCPDs similar to those specified on this project.
2.
3.
Testing company shall be located with 50 miles radius of the project.
Testing Agency's Field Supervisor: Certified by NETA to supervise on-site
testing to supervise on-site testing specified in Part 3.
L.
Comply with NEMA ICS 1.
M.
Comply with NFPA 70.
N.
Comply with NFPA 99.
O.
Comply with NFPA 110.
P.
Comply with UL 1008 unless requirements of these Specifications are stricter.
1.9
A.
PROJECT CONDITIONS
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:
1.
2.
1.10
A.
Notify Architect and Owner no fewer than fourteen (14) days in advance of
proposed interruption of electrical service.
Do not proceed with interruption of electrical service without Architect's and
Owner's written permission.
COORDINATION
Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases.
Concrete, reinforcement, and formwork requirements are specified in Section 033000
"Cast-in-Place Concrete."
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-4
PART 2 - PRODUCTS
2.1
A.
MANUFACTURERS
Manufacturers: Subject to compliance with requirements, provide products by one of
the following manufacturers:
a.
b.
c.
d.
2.2
Contactor Transfer Switches:
Russellectric Inc
Emerson; ASCO Power Technologies, LP.
GE Zenith Controls.
GENERAL TRANSFER-SWITCH PRODUCT REQUIREMENTS
A.
Indicated Current Ratings: Apply as defined in UL 1008 for continuous loading and
total system transfer, including tungsten filament lamp loads not exceeding 30 percent
of switch ampere rating, unless otherwise indicated.
B.
Tested Fault-Current Closing and Withstand Ratings: Adequate for duty imposed by
protective devices at installation locations in Project under the fault conditions
indicated, based on testing according to UL 1008.
1.
Where transfer switch includes internal fault-current protection, rating of switch
and trip unit combination shall exceed indicated fault-current value at installation
location. Verify maximum available fault levels from the Short Circuit and
Coordination Study.
C.
Solid-State Controls: Repetitive accuracy of all settings shall be plus or minus 2
percent or better over an operating temperature range of minus 20 to plus 70 deg C.
D.
Resistance to Damage by Voltage Transients: Components shall meet or exceed
voltage-surge withstand capability requirements when tested according to
IEEE C62.41. Components shall meet or exceed voltage-impulse withstand test of
NEMA ICS 1.
E.
Electrical Operation: Accomplish by a nonfused, momentarily energized solenoid or
electric-motor-operated mechanism, mechanically and electrically interlocked in both
directions.
F.
Switch Characteristics: Designed for continuous-duty repetitive transfer of full-rated
current between active power sources.
1.
2.
Limitation: Switches using molded-case switches or circuit breakers or insulatedcase circuit-breaker components are not acceptable.
Switch Action: Double throw; mechanically held in both directions.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-5
3.
Contacts:
Silver composition or silver alloy for load-current switching.
Conventional automatic transfer-switch units, rated 225 A and higher, shall have
separate arcing contacts.
G.
Neutral Switching. Where four-pole switches are indicated, provide neutral pole
switched simultaneously with phase poles.
H.
Neutral Terminal: Solid and fully rated, unless otherwise indicated.
I.
Annunciation, Control, and Programming Interface Components: Devices at transfer
switches for communicating with remote programming devices, annunciators, or
annunciator and control panels shall have communication capability matched with
remote device.
J.
Factory Wiring: Train and bundle factory wiring and label, consistent with Shop
Drawings, either by color-code or by numbered or lettered wire and cable tape markers
at terminations. Color-coding and wire and cable tape markers are specified in
Section 260553 "Identification for Electrical Systems."
1.
2.
3.
K.
2.3
Designated Terminals: Pressure type, suitable for types and sizes of field wiring
indicated.
Power-Terminal Arrangement and Field-Wiring Space: Suitable for top, side, or
bottom entrance of feeder conductors as indicated.
Control Wiring: Equipped with lugs suitable for connection to terminal strips.
Enclosures: Free standing. general-purpose NEMA 250, Type 1, complying with
NEMA ICS 6 and UL 508, unless otherwise indicated.
1.
Enclosure shall be fabricated from 12 gauge steel and shall be sized to exceed
minimum bending space required by UL 1008. Doors shall have hinges and
locking handle latch with provision for padlocks.
2.
Contractors field wiring terminating within the enclosure shall comply with NFPA
70. Wires shall be permanently tagged near the terminal at each end with the
wire number shown on approved shop drawings.
3.
The enclosure shall be constructed for convenient removal and replacement of
contacts, coils, springs and control devices from the front without removal of
main power conductors or removal of major components. The enclosure housing
the ATS and BP/IS shall be constructed to protect personnel from energized
components of the BO/IS during maintenance of the ATS.
AUTOMATIC TRANSFER SWITCHES
A.
Comply with Level 1 equipment according to NFPA 110.
B.
Switching Arrangement: Double-throw type, incapable of pauses or intermediate
position stops during normal functioning, unless otherwise indicated.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-6
C.
Manual Switch Operation: Under load, with door closed and with either or both
sources energized. Transfer time is same as for electrical operation. Control circuit
automatically disconnects from electrical operator during manual operation.
D.
Manual Switch Operation: Unloaded. Control circuit automatically disconnects from
electrical operator during manual operation.
E.
Signal-Before-Transfer Contacts: A set of normally open/normally closed dry contacts
operates in advance of retransfer to normal source. Interval is adjustable from 1 to 30
seconds.
F.
Digital Communication Interface:
annunciator and control panel.
G.
Automatic Closed-Transition Transfer Switches: Include the following functions and
characteristics:
1.
2.
3.
Fully automatic make-before-break operation.
Load transfer without interruption, through momentary interconnection of both
power sources not exceeding 100 ms.
Initiation of No-Interruption Transfer: Controlled by in-phase monitor and sensors
confirming both sources are present and acceptable.
a.
b.
4.
Matched to capability of remote annunciator or
Initiation occurs without active control of generator.
Controls ensure that closed-transition load transfer closure occurs only
when the 2 sources are within plus or minus 5 electrical degrees maximum,
and plus or minus 5 percent maximum voltage difference.
Failure of power source serving load initiates automatic break-before-make
transfer.
H.
In-Phase Monitor: Factory-wired, internal relay controls transfer so it occurs only when
the two sources are synchronized in phase. Relay compares phase relationship and
frequency difference between normal and emergency sources and initiates transfer
when both sources are within 15 electrical degrees, and only if transfer can be
completed within 60 electrical degrees. Transfer is initiated only if both sources are
within 2 Hz of nominal frequency and 70 percent or more of nominal voltage.
I.
Motor Disconnect and Timing Relay: Controls designate starters so they disconnect
motors before transfer and reconnect them selectively at an adjustable time interval
after transfer. Control connection to motor starters is through wiring external to
automatic transfer switch. Time delay for reconnecting individual motor loads is
adjustable between 1 and 60 seconds, and settings are as indicated. Relay contacts
handling motor-control circuit inrush and seal currents are rated for actual currents to
be encountered.
J.
Programmed Neutral Switch Position: Switch operator has a programmed neutral
position arranged to provide a midpoint between the two working switch positions, with
an intentional, time-controlled pause at midpoint during transfer. Pause is adjustable
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-7
from 0.5 to 30 seconds minimum and factory set for 0.5 second, unless otherwise
indicated. Time delay occurs for both transfer directions. Pause is disabled unless
both sources are live.
K.
Automatic Transfer-Switch Features:
1.
2.
3.
4.
5.
6.
7.
Undervoltage Sensing for Each Phase of Normal Source: Sense low phase-toground voltage on each phase. Pickup voltage shall be adjustable from 85 to
100 percent of nominal, and dropout voltage is adjustable from 75 to 98 percent
of pickup value. Factory set for pickup at 90 percent and dropout at 85 percent.
Adjustable Time Delay: For override of normal-source voltage sensing to delay
transfer and engine start signals. Adjustable from zero to six seconds, and
factory set for one second.
Voltage/Frequency Lockout Relay: Prevent premature transfer to generator.
Pickup voltage shall be adjustable from 85 to 100 percent of nominal. Factory
set for pickup at 90 percent. Pickup frequency shall be adjustable from 90 to 100
percent of nominal. Factory set for pickup at 95 percent.
Time Delay for Retransfer to Normal Source: Adjustable from 0 to 30 minutes,
and factory set for 10 minutes to automatically defeat delay on loss of voltage or
sustained undervoltage of emergency source, provided normal supply has been
restored.
Test Switch: Simulate normal-source failure.
Switch-Position Pilot Lights: Indicate source to which load is connected.
Source-Available Indicating Lights:
Supervise sources via transfer-switch
normal- and emergency-source sensing circuits.
a.
b.
8.
9.
10.
11.
12.
13.
Normal Power Supervision: Green light with nameplate engraved "Normal
Source Available."
Emergency Power Supervision: Red light with nameplate engraved
"Emergency Source Available."
Unassigned Auxiliary Contacts: Two normally open, single-pole, double-throw
contacts for each switch position, rated 10 A at 240-V ac.
Transfer Override Switch: Overrides automatic retransfer control so automatic
transfer switch will remain connected to emergency power source regardless of
condition of normal source. Pilot light indicates override status.
Engine Starting Contacts: One isolated and normally closed, and one isolated
and normally open; rated 10 A at 32-V dc minimum.
Engine Shutdown Contacts: Instantaneous; shall initiate shutdown sequence at
remote engine-generator controls after retransfer of load to normal source.
Engine Shutdown Contacts: Time delay adjustable from zero to five minutes,
and factory set for five minutes. Contacts shall initiate shutdown at remote
engine-generator controls after retransfer of load to normal source.
Engine-Generator Exerciser:
Solid-state, programmable-time switch starts
engine generator and transfers load to it from normal source for a preset time,
then retransfers and shuts down engine after a preset cool-down period. Initiates
exercise cycle at preset intervals adjustable from 7 to 30 days. Running periods
are adjustable from 10 to 30 minutes. Factory settings are for 7-day exercise
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-8
cycle, 20-minute running period, and 5-minute cool-down period.
features include the following:
a.
b.
c.
2.4
A.
Functional Description: Remote annunciator panel shall annunciate conditions for
indicated transfer switches. Annunciation shall include the following:
2.
3.
4.
5.
3.
4.
A.
Sources available, as defined by actual pickup and dropout settings of transferswitch controls.
Switch position.
Switch in test mode.
Failure of communication link.
Fail to transfer.
Annunciator Panel: LED-lamp type with audible signal and silencing switch.
1.
2.
2.5
Exerciser Transfer Selector Switch: Permits selection of exercise with and
without load transfer.
Push-button programming control with digital display of settings.
Integral battery operation of time switch when normal control power is not
available.
REMOTE ANNUNCIATOR SYSTEM
1.
B.
Exerciser
Indicating Lights: Grouped for each transfer switch monitored.
Label each group, indicating transfer switch it monitors, location of switch, and
identity of load it serves.
Mounting: Flush, modular, steel cabinet, unless otherwise indicated.
Lamp Test: Push-to-test or lamp-test switch on front panel.
SOURCE QUALITY CONTROL
Factory test and inspect components, assembled switches, and associated equipment.
Ensure proper operation. Check transfer time and voltage, frequency, and time-delay
settings for compliance with specified requirements. Perform dielectric strength test
complying with NEMA ICS 1.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
Design each fastener and support to carry load indicated by seismic requirements and
according to seismic-restraint details. See Section 260548 "Vibration and Seismic
Controls for Electrical Systems."
B.
Floor-Mounting Switch: Anchor to floor by bolting.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-9
1.
Concrete Bases: 4 inches (100 mm) high, reinforced, with chamfered edges.
Extend base no more than 4 inches (100 mm) in all directions beyond the
maximum dimensions of switch, unless otherwise indicated or unless required for
seismic support.
Construct concrete bases according to Section 260529
"Hangers and Supports for Electrical Systems."
C.
Annunciator and Control Panel Mounting: Flush in wall, unless otherwise indicated.
D.
Identify components according to Section 260553 "Identification for Electrical
Systems."
E.
Set field-adjustable intervals and delays, relays, and engine exerciser clock.
3.2
CONNECTIONS
A.
Wiring to Remote Components: Match type and number of cables and conductors to
control and communication requirements of transfer switches as recommended by
manufacturer. Increase raceway sizes at no additional cost to Owner if necessary to
accommodate required wiring.
B.
Ground equipment according to Section 260526 "Grounding and Bonding for Electrical
Systems."
C.
Connect wiring according to Section 260519 "Low-Voltage Electrical Power Conductors
and Cables."
3.3
FIELD QUALITY CONTROL
A.
Testing Agency: Engage a qualified independent testing and inspecting agency to
perform tests and inspections and prepare test reports.
B.
Manufacturer's Field Service: Engage a factory-authorized service representative to
inspect, test, and adjust components, assemblies, and equipment installations,
including connections. Report results in writing.
C.
Perform tests and inspections and prepare test reports.
1.
2.
3.
4.
Manufacturer's Field Service:
Engage a factory-authorized service
representative to inspect components, assemblies, and equipment installation,
including connections, and to assist in testing.
After installing equipment and after electrical circuitry has been energized, test
for compliance with requirements.
Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
Measure insulation resistance phase-to-phase and phase-to-ground with
insulation-resistance tester. Include external annunciation and control circuits.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-10
Use test voltages and procedure recommended by manufacturer. Comply with
manufacturer's specified minimum resistance.
a.
b.
c.
d.
5.
After energizing circuits, demonstrate interlocking sequence and operational
function for each switch at least three times.
a.
b.
c.
d.
e.
f.
g.
6.
Simulate power failures of normal source to automatic transfer switches
and of emergency source with normal source available.
Simulate loss of phase-to-ground voltage for each phase of normal source.
Verify time-delay settings.
Verify pickup and dropout voltages by data readout or inspection of control
settings.
Test bypass/isolation unit functional modes and related automatic transferswitch operations.
Perform contact-resistance test across main contacts and correct values
exceeding 500 microhms and values for 1 pole deviating by more than 50
percent from other poles.
Verify proper sequence and correct timing of automatic engine starting,
transfer time delay, retransfer time delay on restoration of normal power,
and engine cool-down and shutdown.
Ground-Fault Tests: Coordinate with testing of ground-fault protective devices
for power delivery from both sources.
a.
D.
Check for electrical continuity of circuits and for short circuits.
Inspect for physical damage, proper installation and connection, and
integrity of barriers, covers, and safety features.
Verify that manual transfer warnings are properly placed.
Perform manual transfer operation.
Verify grounding connections and locations and ratings of sensors.
Testing Agency's Tests and Inspections:
1.
2.
3.
After installing equipment and after electrical circuitry has been energized, test
for compliance with requirements.
Perform each visual and mechanical inspection and electrical test stated in latest
edition of NETA Acceptance Testing Specification. Certify compliance with test
parameters.
Measure insulation resistance phase-to-phase and phase-to-ground with
insulation-resistance tester. Include external annunciation and control circuits.
Use test voltages and procedure recommended by manufacturer. Comply with
manufacturer's specified minimum resistance.
a.
b.
c.
d.
Check for electrical continuity of circuits and for short circuits.
Inspect for physical damage, proper installation and connection, and
integrity of barriers, covers, and safety features.
Verify that manual transfer warnings are properly placed.
Perform manual transfer operation.
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-11
4.
After energizing circuits, demonstrate interlocking sequence and operational
function for each switch at least three times.
a.
b.
c.
d.
e.
f.
g.
5.
Simulate power failures of normal source to automatic transfer switches
and of emergency source with normal source available.
Simulate loss of phase-to-ground voltage for each phase of normal source.
Verify time-delay settings.
Verify pickup and dropout voltages by data readout or inspection of control
settings.
Test bypass/isolation unit functional modes and related automatic transferswitch operations.
Perform contact-resistance test across main contacts and correct values
exceeding 500 microhms and values for 1 pole deviating by more than 50
percent from other poles.
Verify proper sequence and correct timing of automatic engine starting,
transfer time delay, retransfer time delay on restoration of normal power,
and engine cool-down and shutdown.
Ground-Fault Tests: Coordinate with testing of ground-fault protective devices
for power delivery from both sources.
a.
Verify grounding connections and locations and ratings of sensors.
E.
Coordinate tests with tests of generator and run them concurrently.
F.
Report results of tests and inspections in writing. Record adjustable relay settings and
measured insulation and contact resistances and time delays. Attach a label or tag to
each tested component indicating satisfactory completion of tests.
G.
Remove and replace malfunctioning units and retest as specified above.
3.4
DEMONSTRATION
A.
Engage a factory-authorized service representative to train Owner's maintenance
personnel to adjust, operate, and maintain transfer switches and related equipment as
specified below. Refer to Section 017900 "Demonstration and Training." Training shall
be held on site after the all transfer switches are completely installed, tested and fully
functional.
B.
Coordinate this training with that for generator equipment.
END OF SECTION 263600
IRVINE VALLEY COLLEGE
CAMPUS SAFETY BUILDING – BACKUP GENERATOR
FLEWELLING & MOODY PROJECT NO. 2668.00
TRANSFER SWITCHES
26 36 00-12
Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 27, 2016
1-2.3 The initial bid documents included Exhibits 1, 2, 3, & 4. The following Exhibits are
revised or new:
Exhibit 5 – Geotechnical Report on Proposed Generator Pad (New), attached herein
Page 6.
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Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 27, 2016
Exhibit 5 (New)
Geotechnical Report on Proposed Generator Pad
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Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 27, 2016
1-3 Job Walk Signs in Sheet
1-3.1 The Job Walk Sign-In Sheet is attached:
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Campus Safety Building – Backup Generator at Irvine Valley College
South Orange Community College District - BID No. 323
Addendum #1
July 27, 2016
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